US3496932A - Method and apparatus for substernal cardiac massage - Google Patents
Method and apparatus for substernal cardiac massage Download PDFInfo
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- US3496932A US3496932A US692844A US3496932DA US3496932A US 3496932 A US3496932 A US 3496932A US 692844 A US692844 A US 692844A US 3496932D A US3496932D A US 3496932DA US 3496932 A US3496932 A US 3496932A
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- massage
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/424—Details relating to driving for positive displacement blood pumps
- A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
- A61M60/435—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic with diastole or systole switching by valve means located between the blood pump and the hydraulic or pneumatic energy source
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/191—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart mechanically acting upon the outside of the patient's native heart, e.g. compressive structures placed around the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/289—Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/424—Details relating to driving for positive displacement blood pumps
- A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
- A61M60/43—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic using vacuum at the blood pump, e.g. to accelerate filling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/465—Details relating to driving for devices for mechanical circulatory actuation
- A61M60/468—Details relating to driving for devices for mechanical circulatory actuation the force acting on the actuation means being hydraulic or pneumatic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/515—Regulation using real-time patient data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/865—Devices for guiding or inserting pumps or pumping devices into the patient's body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/89—Valves
- A61M60/892—Active valves, i.e. actuated by an external force
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2230/00—Measuring physical parameters of the user
- A61H2230/04—Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3303—Using a biosensor
Definitions
- an inflatable bladder is inserted in the chest between the heart and the sternum.
- the bladder is alternately inflated and deflated by varying air pressure to effect pumping of the heart.
- the bladder comprises a generally cone-shaped plastic film fitted With an air supplying stem extending therethrough from the tip through the base and is attached to a pumping apparatus external of the chest.
- This invention relates to a method and apparatus for heart massage of the type which requires no open chest surgery.
- closed chest massage is often used, but this is of marginal effectiveness and is suitable for only short periods of application. Moreover, closed chest massage often results in broken ribs and other injuries to the patient. It has been proposed to bypass the heart with various types of pumping devices and to fit around the heart mechanical pumping devices. However, these operations require elaborate open chest surgery which requires long periods of time, highly skilled surgical teams and are very traumatic to the already ill patient.
- the invention is carried out by providing an inflatable bladder adapted to be placed adjacent the heart.
- the invention further contemplates an associated pumping device for alternately inflating and deflating the bladder.
- the invention is also carried out by providing a method of inserting an inflatable bladder beneath the sternum and adjacent the heart and of pulsating the bladder to effect heart massage.
- FIGURE 1 is a vertical crosssection of the human chest having installed therein a deflated heart massage device according to the invention
- FIGURE 2 is a vertical cross-section of the human chest having therein an inflated heart massage device according to the invention
- FIGURE 3 is a partly broken away view of a heart massaging bladder according to the invention.
- FIGURE 4 is a cross-sectional view of a trocar and cannula assembly, and;
- FIGURE 5 is a schematic diagram of the electrical and pneumatic control system for operating the heart massager according to the invention.
- FIGURES l and 2 illustrate the human chest which includes the sternum having a xyphoid tip 12, a vertebral column 14 and a heart 16 situated therebetween.
- the heart is surrounded by a membrane known as the pericardial sac 18.
- a cavity denoted the anterior mediastinum 20 is located between the heart and the sternum.
- the lower portion of the chest cavity is closed by the diaphragm 22.
- a heart massaging bladder 24 is inserted between the heart 16 and the sternum 10 and is shown located in the anterior mediastinum 20.
- the bladder is in deflated condition while in FIGURE 2, it is inflated.
- the bladder as shown in detail in FIGURE 3 has a generally cone-shaped wall 26 and a generally flat base portion 28 integral therewith.
- a stem 30 is attached to the tip 32 of the bladder and extends interiorly thereof adjacent the wall 26 and protrudes eccentrically through the base portion 28.
- the stem portion 30 is a hollow tube and a plurality of apertures 34 in the tube wall provide air passages between the tube and the interior of the bladder 24.
- the bladder is comprised of a clinical grade of poly-vinyl chloride.
- the bladder 24 then is resilient and the walls thereof readily collapse when air is removed from the bladder, but when air pressure is applied to the interior of the bladder, the bladder opens up to its normal conical shape but does not substantially expand beyond its normal size, that is, the poly-vinyl chloride material does not stretch appreciably so that during operation of the bladder, it maintains its conical shape upon expansion.
- the walls 26 and base portion 28 of the bladder are about 0.005 to 0.007 of an inch thick.
- the stem 30, however, has walls 005 of an inch thick and is 7 of an inch in diameter.
- the stem is resilient and laterally flexible but has sufficient longitudinal rigidity to allow the bladder to be pushed by means of the stem into position within the chest.
- the bladder In size the bladder is approximately 3 /2 inches in diameter across the base while the distance from the base 28 to the tip 32 is approximately 4 inches. With these dimensions the inflated volume of the bladder is approximately 200 cc.
- the stem is about 15 inches long so that it can extend outside the body for connection to a pumping device.
- the shape of the bladder and its ability to hold its shape are important. As shown in FIGURE 2, when the bladder is inflated its largest lateral dimension contacts the heart near the bottom so that the heart ventricle is compressed or collapsed first at the bottom and the blood is then forced up into the aorta. While the heart discharges about to cc. of blood per cycle the bladder is designed with a larger volume to compensate for the yielding of the lungs and other organs during bladder inflation.
- the pericardial sac then provides a measure of lateral support for the bladder during inflation.
- a trocar and cannula assembly 35 are used as tools to expedite the placement of the bladder within the chest.
- the cannula 36 is a curved tube /2 inch in diameter and about 4 inches long, open at both ends and having a handle portion 38 at one end.
- the tube has a 10 inch radius of curvature.
- the trocar 40 comprises a three-sided tip 42 attached to a curved rod 44 which in turn is attached to a handle portion 46.
- the tip 42 is sized to slidably fit within the cannula 36.
- One side of the tip 42 is curved as shown so as to facilitate its movement through the cannula 36 and to facilitate the insertion of the assembly into the chest without damaging the heart.
- the method of inserting the bladder 24 into the chest comprises making a shallow incision about one inch long below the xyphoid tip 12 of the sternum.
- the trocar and cannula assembly 35 is then inserted through the incision and manipulated by hand through the diaphragm 22 and into the anterior mediastinum 20.
- the trocar 40 is removed from the cannula 36 and a deflated bladder 24 is inserted through the cannula until it is positioned between the sternum 10 and the pericardial sac 18, with the stem 30 being located nearest the sternum.
- the cannula 36 is removed leaving the bladder 24 in place. This entire operation requires less than one minute when performed by a skilled person.
- the procedure is the same except that the trocar is manipulated to puncture and enter the pericardial sac. This is readily accomplished without injury to the heart muscle. The bladder is then inserted through the cannula into the pericardial sac.
- the bladder After the bladder is in place, it is alternately inflated and deflated as shown in FIGURES l and 2 to effect pumping of the heart.
- the sternum serves as a reaction member therefor so that the heart is compressed between the bladder and the vertebral column 14, the vertebral column thus acting as a further reaction member.
- the bladder may be left in place and pulsated in this manner for several days or several weeks.
- the means for inflating and deflating the bladder as shown in FIGURE comprises an electronic control circuit 50 and a pneumatic operating system 52.
- the pneumatic system 52 includes a valve housing 53 and a solenoid operated spool valve 54 shown in its normal position, the valve being maintained in that position by a spring member 56. When an electrical signal is applied to the solenoid 58, the valve shifts to the right against the biasing action of the spring 56.
- the valve has five ports. One of the ports 60 is connected to the high pressure side of a pump 62 while a second port 64 is connected to the vacuum side of the pump 62. A further port 66 is connected to a storage tank 68 while another port 70 is vented to atmosphere. The remaining port 72 is connected to the bladder stem 30.
- the vacuum side of the pump 62 is provided with a vacuum relief valve 73 vented to atmosphere and the pressure side of the pump 62 is provided with a pressure relief valve 74 also vented to atmosphere.
- a vacuum relief valve 73 vented to atmosphere
- a pressure relief valve 74 also vented to atmosphere.
- the pump intake is connected to atmosphere while the pump output exhausts through the pressure relief valve 74.
- the pressure relief valve 74 further insures that the pressure supply to the storage tank and hence to the bladder does not become excessive. Moreover, by use of the storage tank, the pump is isolated from the bladder to provide further assurance that a pump malfunction will not cause excess pressure in the bladder. It will be seen then that in operation, as the valve 54 is moved back and forth, the air under pressure will be alternately supplied to the bladder from the storage tank and withdrawn from the bladder by the pump.
- the pump and storage tank are so designed that during each cycle up to 200 cc. of air is supplied to the bladder at about 2 or 3 p.s.i.
- the electrical control circuit 50 comprises a signal producing means for periodically energizing the solenoid 58 as well as means for synchronizing that signal with the patient EKG signals or with internal pacemaker signals.
- the signal producing means comprises a timing unit 82 which is an astable multivibrator having manual frequency and ratio adjustments so that the signal frequency produced will correspond to a desired heartbeat rate and so that the ratio of the period of bladder inflation to the period of deflation is adjustable.
- a normally open switch 84 is connected to the output of the timing unit 82 and when closed connects the timing unit output to the signal line 86 which leads to the valve solenoid 58.
- the output of the timing unit may be connected to a trigger unit 88 through switch 84 and through normally closed switches 90 and 92.
- the trigger unit 88 is a bistable multivibrator. Its output is fed to a cardiac tachometer 94 which is a rate meter for indicating the pulsation rate of the bladder in terms of pulses per minute.
- the output of the trigger unit 88 is also connectible by normally open switch 96 to an internal pacemaker 98, i.e., an electrical heart stimulator of the type well known in the art. In this mode of operation, the pacemaker signals will be synchronized with the massaging device. If desired, however, the pacemaker may be operated independently of the massager device.
- normally open switch 100 connects the output of the timing unit 82 to the input of the trigger unit 88 so that if switch 84 is open and swiches 100 and 96 are closed, the pacemaker signals will be applied at a rate determined by the timing unit 82.
- the cardiac tachometer 94 registers the rate of the pacemaker signals.
- the control circuit 50 also incorporates means for sensing the EKG signals of the patient and for synchronizing the massaging rate with those signals.
- EKG patient leads 102 are connected to the patient in the conventional manner.
- a lead selector switch 104 is provided to enable the selection of that signal which is the strongest or which has the preferred phase.
- the switch 104 is connected to an amplifier 106 which in turn has its output connected through normally open switch 108 and switch 92 to the trigger unit 88. Thus, if switch 108 is closed and switch 90 is opened, the cardiac tachometer 94 will register the EKG rate.
- a scope output 110 is provided at the EKG amplifier output so that if desired, an oscilloscope may be attached for direct viewing of the EKG signals.
- the massager may also be placed in operation by closing switch 84.
- a switch 112 is provided between the EKG amplifier output and the timing unit 82 input.
- the astable oscillator of the timing unit is so arranged to synchronize with the EKG signals when the switch 112 is closed.
- the switches of the circuit may be manually controlled switches although in the preferred embodiment of the circuit they are relay switches, the relays being controlled by a multiple contact mode switch, not shown.
- This invention provides means for very rapidly preparing a patient for heart massage with a minimum of trauma, and for effecting eflicient pumping of the heart by mechanical means to allow the heart to rest and to mend.
- a method of heart massage comprising the steps of (a) making an incision in the skin below the xyphoid tip of the sternum,
- a method of heart massage comprising the steps of (at) making an incision in the skin below the xyphoid tip of the sternum,
- a method of heart massage comprising the steps of (a) inserting a trocar and cannula assembly into the chest cavity adjacent the heart,
- a method of heart massage comprising the steps of (a) inserting a bladder between the sternum and the heart, and
- An inflatable device for substernal heart massage comprising a bladder of flexible substantially non-stretchable material, the bladder having a generally conical side wall and an integral base portion, a stem comprising a tube extending from the tip of the conical side wall eccentrically through the bladder cavity and through the bladder base portion, the stem having longitudinal rigidity and an orifice through the stem communicating with the bladder cavity, whereby the bladder may be inflated by passing air through the stem into the bladder.
- An inflatable device for substernal heart massage comprising a collapsible bladder of substantially nonstretchable material, means for lending rigidity to the bladder along one direction comprising an axially rigid and laterally flexible tubular stern aflixed to said bladder at spaced points, and a passage connecting the interior of the tubular stem to the interior of the bladder, whereby the bladder has suflicient rigidity to be manipulated into the chest cavity and may be inflated and deflated by way of the tubular stem.
- An apparatus for substernal heart massage comprising (a) inflatable means adapted to be inserted in the chest between the heart and the sternum,
- tubular stem means connected to the inflatable means for passing air to the inflatable means
- pulsator means connected to the stem means for alternately supplying air to and withdrawing air from the inflatable means including (i) an electrically controlled multi-port valve, having a first port connected to the stem means,
- valve being so arranged that in a first position that vacuum side of the pump communicates with the stem means and the pressure side of the pump communicates with the chamber so that air is pumped from the inflatable means and to the chamber to pressurize the chamber, and in a second position the chamber communicates with the inflatable means so that air flows from the pressurized chamber to the inflatable means, and
Description
Feb. 24, 71970 5, g, p s ETAL METHOD AND APPARATUS FOR SUBS'IERNAL CARDIAC MASSAGE Filed D60. 22, 1967 2 Sheets-Sheet 1 jBerz :15??? 6' BY m2? 0 225m I Feb. 24,1970
BC. PRISK ETAL METHOD AND APPARATUS FOR SUBSTERNAL CARDIAC MASSAGE Filed Dec. 22, 1967 2 Sheets-Sheet 2 x02 [9? CARIDIAC a; W 83 ACHOMETER M3 .93 T/ f TRIGGER INTERNAL LEAD T PACEMAKER 3%??? (A? QuENcY ADJUST T|M|NG UNIT 8.?
RATIO ADJUST f5 f4 l-l m w J z 1 ii i i x I a: if 72 7i TMOSPHERE & STORAGE I TANK i2 fii j NVENTORS BLADDER Barf C Prfsk AT TORNEY United States Patent METHOD AND APPARATUS FOR SUBSTERNAL CARDIAC MASSAGE Bert C. Prisk and Aran S. Johnson, Grosse Pointe Woods,
Mich, assignors to General Motors Corporation, Detroit, Mich., a corporation of Delaware Filed Dec. 22, 1967, Ser. No. 692,844 Int. Cl. A61h 7/00; A61m 35/00; A61b 17/34 US. Cl. 128-64 7 Claims ABSTRACT OF THE DISCLOSURE To massage a failing heart, an inflatable bladder is inserted in the chest between the heart and the sternum. The bladder is alternately inflated and deflated by varying air pressure to effect pumping of the heart. The bladder comprises a generally cone-shaped plastic film fitted With an air supplying stem extending therethrough from the tip through the base and is attached to a pumping apparatus external of the chest.
This invention relates to a method and apparatus for heart massage of the type which requires no open chest surgery.
In the medical profession it is recognized that it is frequently desirable in the event of a failing heart or a cardiac arrest, to assist the heart in its pumping function. It is believed that if the heart can be assisted for long periods of time, a heart muscle which has had an injury can recover if the assistance is adequate to maintain the blood in the heart muscle.
The technique of closed chest massage is often used, but this is of marginal effectiveness and is suitable for only short periods of application. Moreover, closed chest massage often results in broken ribs and other injuries to the patient. It has been proposed to bypass the heart with various types of pumping devices and to fit around the heart mechanical pumping devices. However, these operations require elaborate open chest surgery which requires long periods of time, highly skilled surgical teams and are very traumatic to the already ill patient.
It is a general object of this invention to provide a method and apparatus for substernal heart massage which does not require open chest surgery.
It is a further object of this invention to provide a device to be inserted into the chest without open chest surgery for elfecting heart pumping.
It is another object of this invention to provide a substernal heart massage device and apparatus for operating the device.
It is an additional object of this invention to provide a method of inserting a heart assisting device into the chest without open chest surgery.
It is yet another object of this invention to provide a method of installing a heart massager which requires less than one minute for installation.
The invention is carried out by providing an inflatable bladder adapted to be placed adjacent the heart. The invention further contemplates an associated pumping device for alternately inflating and deflating the bladder.
The invention is also carried out by providing a method of inserting an inflatable bladder beneath the sternum and adjacent the heart and of pulsating the bladder to effect heart massage.
The above and other advantages will be made more apparent from the following specification taken in conjunction with the accompanying drawings wherein like reference numerals refer to like parts and wherein:
FIGURE 1 is a vertical crosssection of the human chest having installed therein a deflated heart massage device according to the invention;
FIGURE 2 is a vertical cross-section of the human chest having therein an inflated heart massage device according to the invention;
FIGURE 3 is a partly broken away view of a heart massaging bladder according to the invention;
FIGURE 4 is a cross-sectional view of a trocar and cannula assembly, and;
FIGURE 5 is a schematic diagram of the electrical and pneumatic control system for operating the heart massager according to the invention.
FIGURES l and 2 illustrate the human chest which includes the sternum having a xyphoid tip 12, a vertebral column 14 and a heart 16 situated therebetween. The heart is surrounded by a membrane known as the pericardial sac 18. A cavity denoted the anterior mediastinum 20 is located between the heart and the sternum. The lower portion of the chest cavity is closed by the diaphragm 22.
A heart massaging bladder 24 according to the invention is inserted between the heart 16 and the sternum 10 and is shown located in the anterior mediastinum 20. In FIGURE 1, the bladder is in deflated condition while in FIGURE 2, it is inflated. The bladder as shown in detail in FIGURE 3 has a generally cone-shaped wall 26 and a generally flat base portion 28 integral therewith. A stem 30 is attached to the tip 32 of the bladder and extends interiorly thereof adjacent the wall 26 and protrudes eccentrically through the base portion 28. The stem portion 30 is a hollow tube and a plurality of apertures 34 in the tube wall provide air passages between the tube and the interior of the bladder 24. The bladder is comprised of a clinical grade of poly-vinyl chloride. The bladder 24 then is resilient and the walls thereof readily collapse when air is removed from the bladder, but when air pressure is applied to the interior of the bladder, the bladder opens up to its normal conical shape but does not substantially expand beyond its normal size, that is, the poly-vinyl chloride material does not stretch appreciably so that during operation of the bladder, it maintains its conical shape upon expansion. The walls 26 and base portion 28 of the bladder are about 0.005 to 0.007 of an inch thick. The stem 30, however, has walls 005 of an inch thick and is 7 of an inch in diameter. The stem, then, is resilient and laterally flexible but has sufficient longitudinal rigidity to allow the bladder to be pushed by means of the stem into position within the chest. In size the bladder is approximately 3 /2 inches in diameter across the base while the distance from the base 28 to the tip 32 is approximately 4 inches. With these dimensions the inflated volume of the bladder is approximately 200 cc. The stem is about 15 inches long so that it can extend outside the body for connection to a pumping device.
The shape of the bladder and its ability to hold its shape are important. As shown in FIGURE 2, when the bladder is inflated its largest lateral dimension contacts the heart near the bottom so that the heart ventricle is compressed or collapsed first at the bottom and the blood is then forced up into the aorta. While the heart discharges about to cc. of blood per cycle the bladder is designed with a larger volume to compensate for the yielding of the lungs and other organs during bladder inflation.
It is sometimes preferable to place the bladder within the pericardial sac instead of in the anterior mediastinum. The pericardial sac then provides a measure of lateral support for the bladder during inflation.
A trocar and cannula assembly 35 are used as tools to expedite the placement of the bladder within the chest. As shown in FIGURE 4, the cannula 36 is a curved tube /2 inch in diameter and about 4 inches long, open at both ends and having a handle portion 38 at one end.
The tube has a 10 inch radius of curvature. The trocar 40 comprises a three-sided tip 42 attached to a curved rod 44 which in turn is attached to a handle portion 46. The tip 42 is sized to slidably fit within the cannula 36. One side of the tip 42 is curved as shown so as to facilitate its movement through the cannula 36 and to facilitate the insertion of the assembly into the chest without damaging the heart.
The method of inserting the bladder 24 into the chest comprises making a shallow incision about one inch long below the xyphoid tip 12 of the sternum. The trocar and cannula assembly 35 is then inserted through the incision and manipulated by hand through the diaphragm 22 and into the anterior mediastinum 20. Then the trocar 40 is removed from the cannula 36 and a deflated bladder 24 is inserted through the cannula until it is positioned between the sternum 10 and the pericardial sac 18, with the stem 30 being located nearest the sternum. Then the cannula 36 is removed leaving the bladder 24 in place. This entire operation requires less than one minute when performed by a skilled person. When it is desired to place the bladder within the pericardial sac 18, the procedure is the same except that the trocar is manipulated to puncture and enter the pericardial sac. This is readily accomplished without injury to the heart muscle. The bladder is then inserted through the cannula into the pericardial sac.
After the bladder is in place, it is alternately inflated and deflated as shown in FIGURES l and 2 to effect pumping of the heart. During inflation of the bladder, the sternum serves as a reaction member therefor so that the heart is compressed between the bladder and the vertebral column 14, the vertebral column thus acting as a further reaction member. The bladder may be left in place and pulsated in this manner for several days or several weeks.
The means for inflating and deflating the bladder as shown in FIGURE comprises an electronic control circuit 50 and a pneumatic operating system 52. The pneumatic system 52 includes a valve housing 53 and a solenoid operated spool valve 54 shown in its normal position, the valve being maintained in that position by a spring member 56. When an electrical signal is applied to the solenoid 58, the valve shifts to the right against the biasing action of the spring 56. The valve has five ports. One of the ports 60 is connected to the high pressure side of a pump 62 while a second port 64 is connected to the vacuum side of the pump 62. A further port 66 is connected to a storage tank 68 while another port 70 is vented to atmosphere. The remaining port 72 is connected to the bladder stem 30. The vacuum side of the pump 62 is provided with a vacuum relief valve 73 vented to atmosphere and the pressure side of the pump 62 is provided with a pressure relief valve 74 also vented to atmosphere. When the valve 54 is in normal position, ports 66 and 60 are interconnected and ports 64 and 72 are interconnected so that as the pump operates, air will be withdrawn from the bladder to a minimal vacuum as determined by the vacuum relief valve 73, and pumped into the storage tank 68. Then when the solenoid 58 is energized and the valve 54 shifts to the right, ports 66 and 72 will be interconnected while ports 64 and 70- will be interconnected. Then the air which was previously pumped to the storage tank 68 is allowed to flow to the bladder. The pump intake is connected to atmosphere while the pump output exhausts through the pressure relief valve 74. The pressure relief valve 74 further insures that the pressure supply to the storage tank and hence to the bladder does not become excessive. Moreover, by use of the storage tank, the pump is isolated from the bladder to provide further assurance that a pump malfunction will not cause excess pressure in the bladder. It will be seen then that in operation, as the valve 54 is moved back and forth, the air under pressure will be alternately supplied to the bladder from the storage tank and withdrawn from the bladder by the pump. The pump and storage tank are so designed that during each cycle up to 200 cc. of air is supplied to the bladder at about 2 or 3 p.s.i.
The electrical control circuit 50 comprises a signal producing means for periodically energizing the solenoid 58 as well as means for synchronizing that signal with the patient EKG signals or with internal pacemaker signals. The signal producing means comprises a timing unit 82 which is an astable multivibrator having manual frequency and ratio adjustments so that the signal frequency produced will correspond to a desired heartbeat rate and so that the ratio of the period of bladder inflation to the period of deflation is adjustable. A normally open switch 84 is connected to the output of the timing unit 82 and when closed connects the timing unit output to the signal line 86 which leads to the valve solenoid 58. The output of the timing unit may be connected to a trigger unit 88 through switch 84 and through normally closed switches 90 and 92. The trigger unit 88 is a bistable multivibrator. Its output is fed to a cardiac tachometer 94 which is a rate meter for indicating the pulsation rate of the bladder in terms of pulses per minute. The output of the trigger unit 88 is also connectible by normally open switch 96 to an internal pacemaker 98, i.e., an electrical heart stimulator of the type well known in the art. In this mode of operation, the pacemaker signals will be synchronized with the massaging device. If desired, however, the pacemaker may be operated independently of the massager device. To that end, normally open switch 100 connects the output of the timing unit 82 to the input of the trigger unit 88 so that if switch 84 is open and swiches 100 and 96 are closed, the pacemaker signals will be applied at a rate determined by the timing unit 82. In this mode of operation, the cardiac tachometer 94 registers the rate of the pacemaker signals.
The control circuit 50 also incorporates means for sensing the EKG signals of the patient and for synchronizing the massaging rate with those signals. EKG patient leads 102 are connected to the patient in the conventional manner. A lead selector switch 104 is provided to enable the selection of that signal which is the strongest or which has the preferred phase. The switch 104 is connected to an amplifier 106 which in turn has its output connected through normally open switch 108 and switch 92 to the trigger unit 88. Thus, if switch 108 is closed and switch 90 is opened, the cardiac tachometer 94 will register the EKG rate. A scope output 110 is provided at the EKG amplifier output so that if desired, an oscilloscope may be attached for direct viewing of the EKG signals. While thus monitoring the EKG signals, the massager may also be placed in operation by closing switch 84. To synchronize the massager with the EKG singals a switch 112 is provided between the EKG amplifier output and the timing unit 82 input. The astable oscillator of the timing unit is so arranged to synchronize with the EKG signals when the switch 112 is closed. It will thus be seen that the electrical control circuit provides a highly versatile tool for monitoring EKG signals or providing internal pacemaker signals as well as controlling the massaging operation and if desired synchronizing the massaging with either the EKG signals or the pacemaker signals. The switches of the circuit may be manually controlled switches although in the preferred embodiment of the circuit they are relay switches, the relays being controlled by a multiple contact mode switch, not shown.
This invention, then, provides means for very rapidly preparing a patient for heart massage with a minimum of trauma, and for effecting eflicient pumping of the heart by mechanical means to allow the heart to rest and to mend.
The embodiment of the invention described herein is for purposes of illustration and the scope of the invention is intended to be limited only by the following claims.
It is claimed:
1. A method of heart massage comprising the steps of (a) making an incision in the skin below the xyphoid tip of the sternum,
(b) inserting a trocar and cannula through the incision into the anterior mediastinum,
(c) removing the trocar from the cannula,
(d) inserting an inflatable bladder through the cannula into the anterior mediastinum adjacent the heart,
(e) removing the cannula, and
(f) periodically pulsating the bladder whereby the heart is compressed periodically to effect the pumping of blood.
2. A method of heart massage comprising the steps of (at) making an incision in the skin below the xyphoid tip of the sternum,
(b) inserting a trocar and cannula through the incision into the pericardial sac,
(c) removing the trocar from the cannula,
(d) inserting an inflatable bladder through the cannula into the pericardial sac adjacent the heart,
(e) removing the cannula, and
(f) periodically pulsating the bladder whereby the heart is compressed periodically to effect the pumping of blood.
3. A method of heart massage comprising the steps of (a) inserting a trocar and cannula assembly into the chest cavity adjacent the heart,
(b) removing the trocar,
(c) inserting a bladder through the cannula into the chest cavity adjacent the heart,
(d) removing the cannula, and
(e) alternately supplying and withdrawing air from the bladder whereby the heart is compressed periodically to effect the pumping of blood.
4. A method of heart massage comprising the steps of (a) inserting a bladder between the sternum and the heart, and
(b) periodically compressing the heart between the bladder and the vertebral column by inflating and deflating the bladder whereby the heart ventricle is compressed periodically to eflect pumping of blood.
5. An inflatable device for substernal heart massage comprising a bladder of flexible substantially non-stretchable material, the bladder having a generally conical side wall and an integral base portion, a stem comprising a tube extending from the tip of the conical side wall eccentrically through the bladder cavity and through the bladder base portion, the stem having longitudinal rigidity and an orifice through the stem communicating with the bladder cavity, whereby the bladder may be inflated by passing air through the stem into the bladder.
6. An inflatable device for substernal heart massage comprising a collapsible bladder of substantially nonstretchable material, means for lending rigidity to the bladder along one direction comprising an axially rigid and laterally flexible tubular stern aflixed to said bladder at spaced points, and a passage connecting the interior of the tubular stem to the interior of the bladder, whereby the bladder has suflicient rigidity to be manipulated into the chest cavity and may be inflated and deflated by way of the tubular stem.
7. An apparatus for substernal heart massage comprising (a) inflatable means adapted to be inserted in the chest between the heart and the sternum,
(b) tubular stem means connected to the inflatable means for passing air to the inflatable means, and
(c) pulsator means connected to the stem means for alternately supplying air to and withdrawing air from the inflatable means including (i) an electrically controlled multi-port valve, having a first port connected to the stem means,
(ii) an air pump having a vacuum side and a pressure side connected to second and third ports of the valve, respectively,
(iii) a chamber connected to a fourth port of the valve,
(iv) the valve being so arranged that in a first position that vacuum side of the pump communicates with the stem means and the pressure side of the pump communicates with the chamber so that air is pumped from the inflatable means and to the chamber to pressurize the chamber, and in a second position the chamber communicates with the inflatable means so that air flows from the pressurized chamber to the inflatable means, and
(v) electrical control means connected to the valve for shifting the valve alternately between the first and second positions so that the inflatable means is pulsated whereby the heart is massaged by the inflatable means.
References Cited UNITED STATES PATENTS 2,101,273 12/1937 Smith 128-64 2,826,193 3/1958 Vineberg 12864 2,893,382 7/1959 Demeny 128-64 3,039,468 6/1962 Price 128-347 3,416,160 12/1968 Arion.
. L. W. TRAPP, Primary Examiner US. Cl. X.R. l28347, 348
zg gy UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,496,932 DatedFebruary 24, 1970 Invent0r(s) Bert c. Prisk and Aran g. ,Ighgg on It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
In Column 1, after the title, lines 4 6 should read Bert c. Priak, Grosse Pointe Woods, Mich assignor to General Motors Corporation, Detroit, Mich., a
corporation of Delaware, and Area 8. Johnson, Grosse Pointe Woods $|GNED A- OCT 27 I970 {SEAL} Attest:
WILLIAM E- suHUYLm, IR Edward Fletclm' Gomissioner of Patents Atlasting Officer
Applications Claiming Priority (1)
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US69284467A | 1967-12-22 | 1967-12-22 |
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Application Number | Title | Priority Date | Filing Date |
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US692844A Expired - Lifetime US3496932A (en) | 1967-12-22 | 1967-12-22 | Method and apparatus for substernal cardiac massage |
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US (1) | US3496932A (en) |
GB (1) | GB1217760A (en) |
Cited By (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3608539A (en) * | 1968-11-06 | 1971-09-28 | Daniel G Miller | Method for the biopsy of subcutaneous masses |
US4048990A (en) * | 1976-09-17 | 1977-09-20 | Goetz Robert H | Heart massage apparatus |
US4314550A (en) * | 1980-05-01 | 1982-02-09 | The Trustees Of Boston University | Method of treating an arrested heart |
US4416281A (en) * | 1981-03-05 | 1983-11-22 | Guardline Disposables Limited | Surgical cushion for cooling an organ |
US4506658A (en) * | 1982-01-11 | 1985-03-26 | Casile Jean P | Pericardiac circulatory assistance device |
EP0535974A1 (en) * | 1991-10-04 | 1993-04-07 | Ethicon, Inc. | Flexible trocar tube |
WO1994003228A2 (en) * | 1992-08-03 | 1994-02-17 | Zadini Filiberto P | Percutaneous cardiac pump for cardiopulmonary resuscitation |
EP0590158A1 (en) * | 1992-04-17 | 1994-04-06 | KIYOTA, Yoshiharu | Intracorporeal heart assisting device |
US5484391A (en) * | 1992-07-30 | 1996-01-16 | Univ Temple | Direct manual cardiac compression method |
US5683364A (en) * | 1993-07-30 | 1997-11-04 | Zadini; Filiberto | Percutaneous cardiac pump for cardiopulmonary resuscitation |
US5910124A (en) * | 1994-01-10 | 1999-06-08 | Cardiassist Incorporated | Ventricular assist device and method |
US5931850A (en) * | 1992-08-03 | 1999-08-03 | Zadini; Filiberto P. | (Percutaneous cardiac pump for cardiopulmonary resuscitation) cardiac resuscitation device for percutaneous direct cardiac massage |
US6200280B1 (en) | 1998-05-29 | 2001-03-13 | Theracardia, Inc. | Cardiac massage apparatus and method |
US6238334B1 (en) | 1997-11-03 | 2001-05-29 | Cardio Technologies, Inc. | Method and apparatus for assisting a heart to pump blood |
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US10098640B2 (en) | 2001-12-04 | 2018-10-16 | Atricure, Inc. | Left atrial appendage devices and methods |
US10130369B2 (en) | 2015-03-24 | 2018-11-20 | Sentreheart, Inc. | Tissue ligation devices and methods therefor |
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US11950784B2 (en) | 2020-10-02 | 2024-04-09 | Atricure, Inc. | Tissue ligation devices and controls therefor |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2101273A (en) * | 1935-01-09 | 1937-12-07 | Wallace D Smith | Massage instrument for treating the prostate gland |
US2826193A (en) * | 1956-08-01 | 1958-03-11 | Vineberg Heart Foundation | Cardiac resuscitation device |
US2893382A (en) * | 1952-09-01 | 1959-07-07 | F L Fenyves Dr Ing | Massage apparatus |
US3039468A (en) * | 1959-01-07 | 1962-06-19 | Joseph L Price | Trocar and method of treating bloat |
US3416160A (en) * | 1964-12-28 | 1968-12-17 | Arion Henri Gilbert | Retromammary prosthesis |
-
1967
- 1967-12-22 US US692844A patent/US3496932A/en not_active Expired - Lifetime
-
1968
- 1968-12-12 GB GB59131/68A patent/GB1217760A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2101273A (en) * | 1935-01-09 | 1937-12-07 | Wallace D Smith | Massage instrument for treating the prostate gland |
US2893382A (en) * | 1952-09-01 | 1959-07-07 | F L Fenyves Dr Ing | Massage apparatus |
US2826193A (en) * | 1956-08-01 | 1958-03-11 | Vineberg Heart Foundation | Cardiac resuscitation device |
US3039468A (en) * | 1959-01-07 | 1962-06-19 | Joseph L Price | Trocar and method of treating bloat |
US3416160A (en) * | 1964-12-28 | 1968-12-17 | Arion Henri Gilbert | Retromammary prosthesis |
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US3608539A (en) * | 1968-11-06 | 1971-09-28 | Daniel G Miller | Method for the biopsy of subcutaneous masses |
US4048990A (en) * | 1976-09-17 | 1977-09-20 | Goetz Robert H | Heart massage apparatus |
US4314550A (en) * | 1980-05-01 | 1982-02-09 | The Trustees Of Boston University | Method of treating an arrested heart |
US4416281A (en) * | 1981-03-05 | 1983-11-22 | Guardline Disposables Limited | Surgical cushion for cooling an organ |
US4506658A (en) * | 1982-01-11 | 1985-03-26 | Casile Jean P | Pericardiac circulatory assistance device |
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US5484391A (en) * | 1992-07-30 | 1996-01-16 | Univ Temple | Direct manual cardiac compression method |
US5571074A (en) * | 1992-07-30 | 1996-11-05 | Temple University-Of The Commonwealth System Of Higher Education | Inflatable and expandable direct manual cardiac compression device |
US5582580A (en) * | 1992-07-30 | 1996-12-10 | Temple University - Of The Commonwealth System Of Higher Education | Direct manual cardiac compression device |
US6296653B1 (en) | 1992-08-03 | 2001-10-02 | Filiberto P. Zadini | Cardiac resuscitation device for percutaneous direct cardiac massage |
US5466221A (en) * | 1992-08-03 | 1995-11-14 | Zadini; Filiberto P. | Percutaneous cardiac pump for cardiopulmonary resuscitation |
WO1994003228A2 (en) * | 1992-08-03 | 1994-02-17 | Zadini Filiberto P | Percutaneous cardiac pump for cardiopulmonary resuscitation |
WO1994003228A3 (en) * | 1992-08-03 | 1994-04-28 | Filiberto P Zadini | Percutaneous cardiac pump for cardiopulmonary resuscitation |
US5931850A (en) * | 1992-08-03 | 1999-08-03 | Zadini; Filiberto P. | (Percutaneous cardiac pump for cardiopulmonary resuscitation) cardiac resuscitation device for percutaneous direct cardiac massage |
US5683364A (en) * | 1993-07-30 | 1997-11-04 | Zadini; Filiberto | Percutaneous cardiac pump for cardiopulmonary resuscitation |
US5910124A (en) * | 1994-01-10 | 1999-06-08 | Cardiassist Incorporated | Ventricular assist device and method |
US20040167563A1 (en) * | 1996-08-01 | 2004-08-26 | Fogarty Thomas J. | Minimally invasive direct cardiac massage device and method |
US6238334B1 (en) | 1997-11-03 | 2001-05-29 | Cardio Technologies, Inc. | Method and apparatus for assisting a heart to pump blood |
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US20020049457A1 (en) * | 1999-05-20 | 2002-04-25 | Kaplan Aaron V. | Methods and apparatus for transpericardial left atrial appendage closure |
US7226458B2 (en) | 1999-05-20 | 2007-06-05 | Aaron V. Kaplan | Methods and apparatus for transpericardial left atrial appendage closure |
US20020099390A1 (en) * | 1999-05-20 | 2002-07-25 | Kaplan Aaron V. | Methods and apparatus for transpericardial left atrial appendage closure |
US20080125795A1 (en) * | 1999-05-20 | 2008-05-29 | Aaron V. Kaplan | Methods and apparatus for transpericardial left atrial appendage closure |
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US6808483B1 (en) | 2000-10-03 | 2004-10-26 | Paul A. Spence | Implantable heart assist devices and methods |
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US20070156220A1 (en) * | 2002-05-10 | 2007-07-05 | Cardiac Pacemakers, Inc. | Methods for lead placement on a surface of the heart |
US20070156217A1 (en) * | 2002-05-10 | 2007-07-05 | Cardiac Pacemakers, Inc. | Apparatus for lead placement on a surface of the heart |
US20070203554A1 (en) * | 2002-05-10 | 2007-08-30 | Cardiac Pacemakers, Inc. | Methods and apparatus for lead placement on a surface of the heart |
US7610104B2 (en) | 2002-05-10 | 2009-10-27 | Cerebral Vascular Applications, Inc. | Methods and apparatus for lead placement on a surface of the heart |
US20040220560A1 (en) * | 2003-04-29 | 2004-11-04 | Briscoe Roderick E. | Endocardial dispersive electrode for use with a monopolar RF ablation pen |
US7497857B2 (en) | 2003-04-29 | 2009-03-03 | Medtronic, Inc. | Endocardial dispersive electrode for use with a monopolar RF ablation pen |
US20090138008A1 (en) * | 2003-04-29 | 2009-05-28 | Medtronic, Inc. | Endocardial Dispersive Electrode for Use with a Monopolar RF Ablation Pen |
US7871409B2 (en) | 2003-04-29 | 2011-01-18 | Medtronic, Inc. | Endocardial dispersive electrode for use with a monopolar RF ablation pen |
US10327780B2 (en) | 2003-10-09 | 2019-06-25 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US8795297B2 (en) | 2003-10-09 | 2014-08-05 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US9271819B2 (en) | 2003-10-09 | 2016-03-01 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US11350944B2 (en) | 2003-10-09 | 2022-06-07 | Sentreheart Llc | Apparatus and method for the ligation of tissue |
US20050154404A1 (en) * | 2003-10-09 | 2005-07-14 | Liddicoat John R. | Apparatus and method for the ligation of tissue |
US10806460B2 (en) | 2003-10-09 | 2020-10-20 | Sentreheart Llc | Apparatus and method for the ligation of tissue |
US7828810B2 (en) | 2003-10-09 | 2010-11-09 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US7846168B2 (en) | 2003-10-09 | 2010-12-07 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US20070073313A1 (en) * | 2003-10-09 | 2007-03-29 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US20100204623A1 (en) * | 2003-12-02 | 2010-08-12 | Ideker Raymond E | Methods, Systems and Computer Program Products to Inhibit Ventricular Fibrillation During Cardiopulmonary Resuscitation |
US8843195B2 (en) * | 2003-12-02 | 2014-09-23 | Uab Research Foundation | Methods, systems and computer program products to inhibit ventricular fibrillation during cardiopulmonary resuscitation |
US20050277959A1 (en) * | 2004-05-26 | 2005-12-15 | Idx Medical, Ltd. | Apparatus and methods for occluding a hollow anatomical structure |
US7645285B2 (en) | 2004-05-26 | 2010-01-12 | Idx Medical, Ltd | Apparatus and methods for occluding a hollow anatomical structure |
US9656063B2 (en) | 2004-06-18 | 2017-05-23 | Medtronic, Inc. | Method and system for placement of electrical lead inside heart |
US20060020271A1 (en) * | 2004-06-18 | 2006-01-26 | Stewart Mark T | Methods and devices for occlusion of an atrial appendage |
US7918865B2 (en) | 2005-04-07 | 2011-04-05 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US20110144660A1 (en) * | 2005-04-07 | 2011-06-16 | Liddicoat John R | Apparatus and method for the ligation of tissue |
US20060253129A1 (en) * | 2005-04-07 | 2006-11-09 | Liddicoat John R | Apparatus and method for the ligation of tissue |
US9522006B2 (en) | 2005-04-07 | 2016-12-20 | Sentreheart, Inc. | Apparatus and method for the ligation of tissue |
US20090012545A1 (en) * | 2005-07-14 | 2009-01-08 | Idx Medical, Ltd. | Apparatus and Methods for Occluding a Hallow Anatomical Structure |
US10166024B2 (en) | 2005-07-14 | 2019-01-01 | Idx Medical, Ltd. | Apparatus and methods for occluding a hollow anatomical structure |
US8771297B2 (en) | 2007-03-30 | 2014-07-08 | Sentreheart, Inc. | Devices, systems, and methods for closing the left atrial appendage |
US20090157118A1 (en) * | 2007-03-30 | 2009-06-18 | Sentreheart, Inc. | Devices, systems, and methods for closing the left atrial appendage |
US11826050B2 (en) | 2007-03-30 | 2023-11-28 | Atricure, Inc. | Devices, systems, and methods for closing the left atrial appendage |
US9498223B2 (en) | 2007-03-30 | 2016-11-22 | Sentreheart, Inc. | Devices for closing the left atrial appendage |
US20090143791A1 (en) * | 2007-03-30 | 2009-06-04 | Sentreheart, Inc. | Devices, systems, and methods for closing the left atrial appendage |
US8986325B2 (en) | 2007-03-30 | 2015-03-24 | Sentreheart, Inc. | Devices, systems, and methods for closing the left atrial appendage |
US11020122B2 (en) | 2007-03-30 | 2021-06-01 | Sentreheart Llc | Methods for closing the left atrial appendage |
US10966725B2 (en) | 2007-03-30 | 2021-04-06 | Sentreheart Llc | Devices and systems for closing the left atrial appendage |
US9408659B2 (en) | 2007-04-02 | 2016-08-09 | Atricure, Inc. | Surgical instrument with separate tool head and method of use |
US20090082797A1 (en) * | 2007-09-20 | 2009-03-26 | Fung Gregory W | Devices and methods for remote suture management |
US8469983B2 (en) | 2007-09-20 | 2013-06-25 | Sentreheart, Inc. | Devices and methods for remote suture management |
US9393023B2 (en) | 2009-01-13 | 2016-07-19 | Atricure, Inc. | Apparatus and methods for deploying a clip to occlude an anatomical structure |
US20100179570A1 (en) * | 2009-01-13 | 2010-07-15 | Salvatore Privitera | Apparatus and methods for deploying a clip to occlude an anatomical structure |
US20100199077A1 (en) * | 2009-01-30 | 2010-08-05 | Freescale Semiconductor, Inc. | Authenticated debug access for field returns |
US10799241B2 (en) | 2009-04-01 | 2020-10-13 | Sentreheart Llc | Tissue ligation devices and controls therefor |
US9198664B2 (en) | 2009-04-01 | 2015-12-01 | Sentreheart, Inc. | Tissue ligation devices and controls therefor |
US20110087247A1 (en) * | 2009-04-01 | 2011-04-14 | Fung Gregory W | Tissue ligation devices and controls therefor |
US9855419B2 (en) | 2009-05-29 | 2018-01-02 | Medtronic, Inc. | Leads for selective sensing and virtual electrodes |
US10405919B2 (en) | 2010-04-13 | 2019-09-10 | Sentreheart, Inc. | Methods and devices for treating atrial fibrillation |
US9486281B2 (en) | 2010-04-13 | 2016-11-08 | Sentreheart, Inc. | Methods and devices for accessing and delivering devices to a heart |
US9017349B2 (en) | 2010-10-27 | 2015-04-28 | Atricure, Inc. | Appendage clamp deployment assist device |
US11883035B2 (en) | 2010-10-27 | 2024-01-30 | Atricure, Inc. | Appendage clamp deployment assist device |
US9066741B2 (en) | 2010-11-01 | 2015-06-30 | Atricure, Inc. | Robotic toolkit |
US8636754B2 (en) | 2010-11-11 | 2014-01-28 | Atricure, Inc. | Clip applicator |
US11026690B2 (en) | 2011-06-08 | 2021-06-08 | Sentreheart Llc | Tissue ligation devices and tensioning devices therefor |
US9498206B2 (en) | 2011-06-08 | 2016-11-22 | Sentreheart, Inc. | Tissue ligation devices and tensioning devices therefor |
US9265486B2 (en) | 2011-08-15 | 2016-02-23 | Atricure, Inc. | Surgical device |
US9282973B2 (en) | 2012-01-20 | 2016-03-15 | Atricure, Inc. | Clip deployment tool and associated methods |
US10251650B2 (en) | 2013-03-12 | 2019-04-09 | Sentreheart, Inc. | Tissue litigation devices and methods therefor |
US11207073B2 (en) | 2013-03-12 | 2021-12-28 | Sentreheart Llc | Tissue ligation devices and methods therefor |
US9408608B2 (en) | 2013-03-12 | 2016-08-09 | Sentreheart, Inc. | Tissue ligation devices and methods therefor |
US20140330208A1 (en) * | 2013-05-06 | 2014-11-06 | Medtronic, Inc. | Systems and methods for implanting a medical electrical lead |
US10933230B2 (en) * | 2013-05-06 | 2021-03-02 | Medtronic, Inc. | Systems and methods for implanting a medical electrical lead |
US11832848B2 (en) | 2013-05-06 | 2023-12-05 | Medtronic, Inc. | Systems and methods for implanting a medical electrical lead |
US10799288B2 (en) | 2013-10-31 | 2020-10-13 | Sentreheart Llc | Devices and methods for left atrial appendage closure |
US10258408B2 (en) | 2013-10-31 | 2019-04-16 | Sentreheart, Inc. | Devices and methods for left atrial appendage closure |
US11844566B2 (en) | 2013-10-31 | 2023-12-19 | Atricure, Inc. | Devices and methods for left atrial appendage closure |
US10137295B2 (en) | 2014-04-25 | 2018-11-27 | Medtronic, Inc. | Implantable extravascular electrical stimulation lead having improved sensing and pacing capability |
US9855414B2 (en) | 2014-04-25 | 2018-01-02 | Medtronic, Inc. | Implantable extravascular electrical stimulation lead having improved sensing and pacing capability |
US10661073B2 (en) | 2014-04-25 | 2020-05-26 | Medtronic, Inc. | Implantable extravascular electrical stimulation lead having improved sensing and pacing capability |
US11534603B2 (en) | 2014-04-25 | 2022-12-27 | Medtronic, Inc. | Implantable extravascular electrical stimulation lead having improved sensing and pacing capability |
US10357647B2 (en) | 2014-06-02 | 2019-07-23 | Medtronic, Inc. | Tunneling tool |
US10765858B2 (en) | 2014-11-05 | 2020-09-08 | Medtronic, Inc. | Extravascular lead designs for optimized pacing and sensing having segmented, partially electrically insulated defibrillation coils |
US10675478B2 (en) | 2014-12-09 | 2020-06-09 | Medtronic, Inc. | Extravascular implantable electrical lead having undulating configuration |
US11813447B2 (en) | 2014-12-09 | 2023-11-14 | Medtronic, Inc. | Extravascular implantable electrical lead having undulating configuration |
US11766273B2 (en) | 2014-12-18 | 2023-09-26 | Medtronic, Inc. | Systems and methods for deploying an implantable medical electrical lead |
US9936956B2 (en) | 2015-03-24 | 2018-04-10 | Sentreheart, Inc. | Devices and methods for left atrial appendage closure |
US10959734B2 (en) | 2015-03-24 | 2021-03-30 | Sentreheart Llc | Tissue ligation devices and methods therefor |
US10716571B2 (en) | 2015-03-24 | 2020-07-21 | Sentreheart Llc | Devices and methods for left atrial appendage closure |
US10130369B2 (en) | 2015-03-24 | 2018-11-20 | Sentreheart, Inc. | Tissue ligation devices and methods therefor |
US11389167B2 (en) | 2016-02-26 | 2022-07-19 | Atricure, Inc. | Devices and methods for left atrial appendage closure |
US10292710B2 (en) | 2016-02-26 | 2019-05-21 | Sentreheart, Inc. | Devices and methods for left atrial appendage closure |
US11950784B2 (en) | 2020-10-02 | 2024-04-09 | Atricure, Inc. | Tissue ligation devices and controls therefor |
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