CN100428965C - Liquid medicine injection device - Google Patents
Liquid medicine injection device Download PDFInfo
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- CN100428965C CN100428965C CNB2004100562344A CN200410056234A CN100428965C CN 100428965 C CN100428965 C CN 100428965C CN B2004100562344 A CNB2004100562344 A CN B2004100562344A CN 200410056234 A CN200410056234 A CN 200410056234A CN 100428965 C CN100428965 C CN 100428965C
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- medicinal liquid
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- valve
- liquid medicine
- valve plug
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Abstract
The present invention provides a liquid medicine injection device, which has a liquid medicine interruption valve and a detection sensor, wherein the liquid medicine interruption valve can supply liquid medicine according to the installation of a tube; only after the tube is installed, under the conditions that the tube is closed and setting is completed, the liquid medicine interruption valve can inject the liquid medicine; the detection sensor is used for detecting the blocking state of the tube and informing a patient, so the liquid medicine can be injected safely by the patient. The liquid medicine interruption valve comprises a valve casing and a valve plug, wherein the valve casing is provided with an input port and an output port which make the liquid medicine which flows into interior flow out to the exterior; a space part is formed in the valve casing; the center of the valve plug is a minor diameter part, and both ends of the valve plug are major diameter parts; the valve plug is in the shape of a winding reel, wherein the diameter of which is increased gradually and linearly from the center towards both the two ends. When a cover is in a closing state, the valve plug can move up and down in the space part of the valve casing.
Description
Technical field
The present invention relates to liquid medicine injection apparatus, specifically, in this liquid medicine injection apparatus, have by the installation of pipe and interrupted valve of medicinal liquid that can supply of chemical and the detecting sensor that detects the pipe blocked state and inform the patient, can safely medicinal liquid be injected patient body.The interrupted valve of above-mentioned medicinal liquid is after pipe has been installed, and only under the condition that cover closing, setting are finished, could inject medicinal liquid.
Background technology
As everyone knows, the doctor leaves the dose that the patient is injected on prescription, and the nurse is according to doctor's prescription, medical liquid container is fixed on the position higher than patient's injection site, control valve rule of thumb, this valve built-in the switching portion that constitutes by screw, the patient is injected a certain amount of injection.
But to the medicinal liquid of patient infusion analgesics etc. the time, patient's spasm or pain off and in this case, must increase injection volume provisionally sometimes.At this moment, because injection volume must inject medicinal liquid according to doctor's recipe quantity ground, be quite dangerous if patient oneself regulates injection volume.But according to the environment and the condition of hospital, it is very difficult that doctor or nurse can promptly regulate the medicinal liquid injection rate at pain intermittently, also exists the waste of time problem for doctor and nurse.
Especially when the injection of injection, according to the amount of liquid medicine of prescription, accurately inject quantitatively, for unfamiliar nurse, the injection volume of regulating the unit interval is difficult to.The patient who does not inject when usual and only will inject when special disease is fallen ill for example for the patient that acute cardiac onste symptom etc. is arranged, must promptly inject medicinal liquid, so the individual must carry medicinal liquid when usual, when injection, must accurately inject quantitatively, so, a lot of difficulties are arranged.
In addition, even the technology skilful person also exists the danger of excess liquid medicine injection, in addition, when containing foreign body or air in the medicinal liquid, and pipe is pushed by other object and when the supply of medicinal liquid is interrupted, all be dangerous to the patient.
Therefore, developed a kind of automatic injection device of medicinal liquid that can automatically inject a certain amount of medicinal liquid recently.But the automatic injection device of this medicinal liquid before only is forcibly medicinal liquid to be injected with pump, does not have additionally sensor installation, so, have the danger that causes security incident.In addition, when lid was open, a large amount of quickly medicinal liquids was supplied with the patient, and life is also produced danger.
Summary of the invention
The present invention makes in view of the above problems, its objective is provides a kind of liquid medicine injection apparatus, this liquid medicine injection apparatus has by the installation of lid and the interrupted valve of medicinal liquid that can supply of chemical, the interrupted valve of this medicinal liquid, only after pipe is installed, with cover closing, set under the condition of finishing, could inject medicinal liquid, so, can prevent to cause the supply of volume medicinal liquid because of opening of lid.
Another object of the present invention provides a kind of liquid medicine injection apparatus, this liquid medicine injection apparatus has detecting sensor, when pipe is pushed by other foreign body and when the supply of medicinal liquid is interrupted, this detecting sensor detects the blocked state of pipe, and inform and the patient can safely medicinal liquid be injected patient body.
To achieve these goals, the invention provides a kind of liquid medicine injection apparatus, its inside is separated into 3 compartments, and this liquid medicine injection apparatus includes housing, medicinal liquid storeroom, drive chamber, Bo Lasi switch and pipe; Above-mentioned housing is used to support the outside of above-mentioned compartment; Above-mentioned medicinal liquid storeroom is formed on the upper end of above-mentioned housing with the form of compartment, is accommodating the sealing medicinal liquid in inside; Above-mentioned drive chamber is used to make medicinal liquid to inject or stop the injection of medicinal liquid, in be provided with compression pump, this compression pump force feed medicinal liquid drives the medicinal liquid that has passed through pipe and discharges; Above-mentioned vigorous Lars switch is connected with the lateral reservations of above-mentioned housing by electric wire, sends the medicinal liquid that appends and injects command signal; Above-mentioned pipe extends to the outside from drive chamber inside, and the medicinal liquid in the above-mentioned sealing medicinal liquid is transplanted on entry needle; It is characterized in that, comprise valve casing and valve plug, valve casing is provided with to make and flow into input and the delivery outlet that inner medicinal liquid flows out to the outside, portion forms spatial portion within it, side at this valve casing is connecting the pipe that is connected with the sealing medicinal liquid, is connecting the pipe that is connected with entry needle at opposite side, and this valve casing is housed in the inside of above-mentioned drive chamber, according to the open and-shut mode of the lid of drive chamber, make the mobile break-make of carrying out of medicinal liquid; The central authorities of valve plug are minor diameter parts, and two ends are large-diameter portions, this valve plug be from central authorities towards both ends gradually diameter be the linear shape that increases, when the closed condition of lid, but this valve plug easy on and off in the spatial portion of above-mentioned valve casing moves.
In addition, the inner space portion of above-mentioned valve casing, have and the symmetric shape of above-mentioned valve plug, it is the taper that increases gradually towards two ends from its central authorities, the diameter of lower end is bigger than the diameter of upper end, when above-mentioned valve plug is down pushed, produce flow gap between the inner peripheral of housing and the valve plug, medicinal liquid can flow.
In order to realize above-mentioned another purpose, liquid medicine injection apparatus of the present invention is characterized in that, also has the detecting sensor of diaphragm and detection pipe blocked state; Above-mentioned diaphragm and above-mentioned valve plug are configured in the bottom of the spatial portion of valve casing with separating predetermined space, when pipe stops up, by the past below of the elasticity exapnsion of himself; Above-mentioned detecting sensor is configured in diaphragm-operated bottom, and when diaphragm during towards detecting sensor one side exapnsion, this detecting sensor is sent electric signal by liquid, metal etc.
According to above-mentioned structure, have according to the open and-shut mode of lid and the interrupted valve of medicinal liquid of the supply of interrupted medicinal liquid, the interrupted valve of this medicinal liquid, only installing behind the lid, closed lid, setting under the condition of finishing, just inject medicinal liquid, so, can prevent from when lid is open, to supply with the medicinal liquid of volume quickly.In addition, owing to have the detecting sensor that detects the pipe blocked state and inform the patient, so, pushed by other object and interrupted medicinal liquid when supplying with when containing foreign body or air and pipe in the medicinal liquid, promptly inform the patient, can prevent security incident.
Description of drawings
Fig. 1 a, 1b are the structure of the interrupted valve of medicinal liquid in the desirable example of expression the present invention and the skiagraph of operating state.
Fig. 2 is illustrated in the desirable example of the present invention, is configured in the skiagraph of the installment state of diaphragm in the interrupted valve of medicinal liquid and detecting sensor.
Fig. 3 is the axonometric chart of the profile of expression liquid medicine injection apparatus of the present invention.
Fig. 4 is the partial perspective view of the structure of expression liquid medicine injection apparatus of the present invention.
Fig. 5 be the expression liquid medicine injection apparatus of the present invention other make the axonometric chart of use-case.
The specific embodiment
Below, the desirable example that present invention will be described in detail with reference to the accompanying.
Fig. 1 a, 1b are the structure of the interrupted valve of medicinal liquid in the desirable example of expression the present invention and the skiagraph of operating state.
As shown in the figure, the liquid medicine injection apparatus of the desirable example of the present invention, in establishing the interrupted valve 51 of the medicinal liquid that detects the lid installment state and detecting the detecting sensor 44 of pipe blocked state, patient's energy oneself inject medicinal liquid safely.The interrupted valve 51 of above-mentioned medicinal liquid only after pipe has been installed, being provided in this cover closing above valve 51 and setting under the condition of finishing, could inject medicinal liquid.
For this reason, the interrupted valve 51 of medicinal liquid of the desirable example of the present invention has valve casing 52, in the inside of valve casing 52 receiving space portion is arranged, and forms input and delivery outlet 60,62 respectively in both sides.On input and delivery outlet 60,62, connecting pipe (figure does not show) respectively, making the medicinal liquid of inflow flow out to the outside.
This valve casing 52 has the spatial portion 58 that can accommodate valve plug 54 in inside.The shape symmetry of this spatial portion 58 and valve plug 54 forms taper from its central authorities towards top and bottom.
That is, valve plug 54 is the coiling tubulars with coil of wire coiled, be tubular basically, but its central part is a path, and two ends are big footpaths.Therefore, valve plug 54 be from central authorities towards top and bottom, diameter is the linear taper that increases.At this moment, the top of valve plug 54 is as being pushed splenium 55a action, and the outer rim of its underpart is as the 55b of switching portion action, and the 55b of this switching portion will be interrupted by the medicinal liquid of valve flow.
In more detail, valve plug 54 is spiral tubulars, though its horizontal section is circular,, be the center with the central part, the diameter of its periphery 54c be more to the upper end and the lower end increase more.In addition, central authorities of 54a are outstanding towards the top above it, and for the bottom surface of the mounting groove 34 that makes the interrupted valve of mounting medicinal liquid becomes level, 54b is a flat condition below it.
At this moment because the lower end diameter of valve plug 54 is bigger than upper end diameter, so, as described later, close cap 22, valve plug 54 by toward the below pushing time, between the outer peripheral edges of the inner peripheral of valve casing 52 and valve plug 54, the generation flow gap, medicinal liquid can flow.
In addition, because valve plug 54 itself has elasticity, so, when combining with 52 initial stages of valve casing, the hole that valve plug 54 is positioned at valve casing 52 tops is located, and it is pushed, then lower end and outer peripheral edges are urged in the inner space portion 58 that enters into valve casing 52 towards the compression of inner central authorities.
After valve plug 54 has been installed on the valve casing 52, passed through the flowing of medicinal liquid of delivery outlet 60, input port 62 and inner space portion 58, whether existed pushing force and interrupted according to valve plug 54 top.That is, after valve plug 54 had been installed in the valve casing 52, valve plug 54 moved in the scope of the certain distance up and down of valve casing 52 inside.When mobile, the inner peripheral that is pushed splenium 55a and valve casing 52 of valve plug 54 connects airtight constantly, and not producing can be by the gap of medicinal liquid, but the 55b of switching portion of its underpart forms flow gap 53 with respect to the inner peripheral of valve casing 52, so, by this flow gap 53, medicinal liquid inflow space portion 58.
Therefore, the medicinal liquid that flows into by delivery outlet 60, the state that is pushed away down according to valve plug 54 still is returned to the state of origin-location, its by spatial portion 58 towards the input port 62 mobilely be interrupted or continue.
That is, with lid 22 obturations, be located at pushes protrusion 26 below it when valve plug 54 is pushed towards the below, valve plug 54 is produced flow gap 53 by toward the below pushing, by the medicinal liquid that input port 62 flows into, shown in Fig. 1 b, discharges from delivery outlet 60 through spatial portion 58.Otherwise, valve plug 54 not by towards below the state of pushing, as shown in Figure 1a, flow gap 53 is closed, the medicinal liquid that flows into by input port 62 can not inflow space portion 58, so medicinal liquid can not be discharged towards delivery outlet 60.
The skiagraph of the diaphragm that Fig. 2 is in the desirable example of the present invention, expression is located at the interrupted valve of medicinal liquid bottom and the state that sets of detecting sensor 44.
As shown in the figure, in the desirable example of the present invention, the bottom at the spatial portion 58 of the interrupted valve 51 of medicinal liquid is disposing diaphragm 56.This diaphragm 56 is attached to the lower edge portion of valve casing 52, form spatial portion 58 below.
In addition, as shown in Figure 2, in the bottom of diaphragm 56, disposing detecting sensor 44, this detecting sensor 44 produces electric signal by liquid, metal etc. with separating predetermined space.When the part of pipe was pushed by object and made that medicinal liquid can not proper flow, diaphragm 56 was towards detecting sensor 44 exapnsions, so detecting sensor 44 can detect the blocked state of pipe.
Detecting sensor 44 is located in the body 4, detects the close state of diaphragm 56 and exports its detection signal to microchip (figure does not show).Microchip makes alarm buzzer action described later according to the signal from detecting sensor 44, produces alarm sound.Therefore, the patient is by from the alarm sound of alarm buzzer, can know that lid 22 correctly do not close, and perhaps the pipe that is connected with delivery outlet 60 is extruded and can not the normal supply medicinal liquid.
At this moment, microchip also can show the information of the improper supply of relevant medicinal liquid by LCD11 described later when alarm buzzer is driven.
Fig. 3 is the axonometric chart that the liquid medicine injection apparatus profile of the interrupted valve of medicinal liquid of the present invention has been adopted in expression.
As shown in the figure, the liquid medicine injection apparatus 2 of the desirable example of the present invention, set pipe in device inside, in order only to inject medicinal liquid having closed under the condition that lid and setting finish, be provided with lid detecting sensor that detects the lid installment state and the detecting sensor that detects the pipe blocked state, so the patient can oneself inject medicinal liquid safely.
For this reason, the interrupted valve 51 of medicinal liquid of the present invention can be used for liquid medicine injection apparatus shown in Figure 32.This liquid medicine injection apparatus 2, the housing 4 with constituent apparatus profile.This housing 4 is divided into 3 compartments.Uppermost compartment in 3 compartments is the medicinal liquid storeroom 6 of accommodating the sealing medicinal liquid, and the compartment below it is control room 8, the injection rate and the injection cycle of these control room 8 control medicinal liquids, has the LCD11 that shows its set condition.
In addition, below control room 8 drive chamber 12, these drive chamber's 12 force feed medicinal liquids are discharged it by pipe 16, be used for the injection of interrupted medicinal liquid.
On the other hand, in housing 4 lateral precalculated positions, connecting Bo Lasi switch 14 by electric wire.User is operated this Bo Lasi switch 14, can temporarily increase the medicinal liquid injection rate.In addition, at the pars intermedia of entry needle 20, disposing air filter 18 with front end pipe 16.This air filter 18 is falling by contained air filtration in the pipe 16 mobile medicinal liquids and discharging outside.8 the outside in the control room has the button portion 10 that changes various settings by the operation of key.
Therefore, in carrying always, the patient is provided with the liquid medicine injection apparatus 2 of a plurality of pick offs, no matter the medicinal liquid of scheduled volume can be injected in any time and place, so it is very convenient, safety in order to ensure the patient who injects medicinal liquid organically combines various pick offs, the injection of control medicinal liquid, so, do not need other caregiver in daily life yet.
Fig. 4 is the partial perspective view that the liquid medicine injection apparatus structure of the interrupted valve of medicinal liquid of the present invention is adopted in expression in detail.
As shown in the figure, liquid medicine injection apparatus 2 has drive chamber 12 in the bottom of housing 4, and when accepting medicinal liquid injection control signal, in order to inject medicinal liquid, drive chamber 12 produces driving forces.At this above drive chamber 12, but with hinge in conjunction with the lid 22 of freely openable.Below lid 22, have supporting station 24 and pushes protrusion 26 respectively.Supporting station 24 is outstanding with certain length, is used to push pipe 16.Pushes protrusion 26 pushings are formed in the check valve on the pipe 16, and it is remained open state.
Inside in drive chamber 12 has compression pump 28.This compression pump 28 is made of several push-pads 30 that motor (figure does not show) is connected with transverse direction.Motor produces the rotary driving force of certain rotating speed by electrical control.Push-pads 30 can move up and down by the rotary driving force of motor.
In addition, push-pads 30 moves up and down by the revolving force of cam (figure do not show) form with sine wave.Therefore, push-pads 30 with the pushing of the form of sine wave be responsible for (figure does not show) below, like this, the medicinal liquids in the pipe 16 flow towards a direction.
On the other hand, on the housing 4 of the lid 22 that is connecting drive chamber 12, form guide groove 32, pipe 16 built-in states, this guide groove 32 is guided pipes 16.Form the mounting groove 34 that supplies the interrupted valve mounting of medicinal liquid at its sidepiece.
Therefore, sealing medicinal liquid (figure does not show) is being housed in the state in the medicinal liquid storeroom 6, the interrupted valve 51 of medicinal liquid is inserted drive chamber 12, when having closed lid 22, the valve plug 54 of the interrupted valve 51 of following pushing medicinal liquid of lid 22 like this, has formed the stream of medicinal liquid.Otherwise when having opened lid 22, valve plug 54 moves and replys toward the top by the elasticity of self, so the stream of medicinal liquid is by locking.In addition, when the centre of pipe by object extruding, medicinal liquid can not proper flow the time, diaphragm 56 is towards detecting sensor 44 1 side exapnsions, so detecting sensor 44 can detect the blocked state of pipe.Therefore, the patient can oneself inject medicinal liquid safely.
That is, detecting sensor 44 detects the squeezed state of pipe, so when the squeezed state of pipe was detected, alarm buzzer was driven, produces alarm sound.Therefore, the pipe that can correctly not close lid 22 or be connected with delivery outlet 60 be extruded and can not the normal supply medicinal liquid etc. situation inform the patient.
Fig. 5 be the expression liquid medicine injection apparatus of the present invention other make the axonometric chart of use-case.
As shown in the figure, adopt the quantitative injection device 2 of medicinal liquid of the interrupted valve 51 of medicinal liquid of the present invention, as shown in Figure 3, can have the medicinal liquid storeroom 6 of accommodating other sealing medicinal liquid, perhaps also can be as shown in Figure 5, use in conjunction with connection tube 72, this connection tube 72 directly is connected with specific sealing medicinal liquid 70.
Under this situation, be preferably in the lateral surface of the housing 4 of liquid medicine injection apparatus 2, form groove 102 along its length, this groove 102 inserts for connection tube 72 and uses.Therefore, no matter be which kind of sealing medicinal liquid 70, can utilize connection tube 72 to be connected with liquid medicine injection apparatus 2, can inject the patient to the quantitative medicinal liquid that is set in advance in the quantitative injection device of this medicinal liquid 2 inside.
Several comparatively ideal embodiment of the present invention has been described in this description, and still, in the scope that does not break away from claims, those skilled in the art can be made various modification and correction.
As mentioned above, according to the present invention, the interrupted valve of medicinal liquid that interrupted medicinal liquid is supplied with owing to have according to the open and-shut mode of lid, the interrupted valve of this medicinal liquid, only after lid has been installed,, could inject medicinal liquid having closed under the condition that lid and setting finish, so, can prevent from when lid is opened, to supply with the medicinal liquid of volume quickly.
In addition, owing to have the detecting sensor that detects the pipe blocked state and report the patient, so, when containing in the medicinal liquid that foreign body or air or pipe are pushed by other object and when having interrupted the supply of medicinal liquid, the patient can be promptly reported, security incident can be prevented.
Claims (3)
1. liquid medicine injection apparatus, its inside is separated into 3 compartments, and this liquid medicine injection apparatus includes housing, medicinal liquid storeroom, drive chamber, Bo Lasi switch and pipe; Above-mentioned housing is used to support the outside of above-mentioned compartment; Above-mentioned medicinal liquid storeroom is formed on the upper end of above-mentioned housing with the form of compartment, is accommodating the sealing medicinal liquid in inside; Above-mentioned drive chamber is used to make medicinal liquid to inject or stop the injection of medicinal liquid, in be provided with compression pump, this compression pump force feed medicinal liquid drives the medicinal liquid that has passed through pipe and discharges; Above-mentioned vigorous Lars switch is connected with the lateral reservations of above-mentioned housing by electric wire, sends the medicinal liquid that appends and injects command signal; Above-mentioned pipe extends to the outside from drive chamber inside, and the medicinal liquid in the above-mentioned sealing medicinal liquid is transplanted on entry needle;
It is characterized in that, comprise valve casing and valve plug,
Valve casing is provided with to make and flow into input and the delivery outlet that inner medicinal liquid flows out to the outside, portion forms spatial portion within it, side at this valve casing is connecting the pipe that is connected with the sealing medicinal liquid, connecting the pipe that is connected with entry needle at opposite side, this valve casing is housed in the inside of above-mentioned drive chamber, according to the open and-shut mode of the lid of drive chamber, make the mobile break-make of carrying out of medicinal liquid;
The central authorities of valve plug are minor diameter parts, and two ends are large-diameter portions, this valve plug be from central authorities towards both ends gradually diameter be the linear shape that increases, when the closed condition of lid, but this valve plug easy on and off in the spatial portion of above-mentioned valve casing moves.
2. liquid medicine injection apparatus as claimed in claim 1, it is characterized in that, the inner space portion of above-mentioned valve casing has and the symmetric shape of above-mentioned valve plug, it is the taper that increases gradually towards two ends from its central authorities, the diameter of lower end is bigger than the diameter of upper end, when above-mentioned valve plug is down pushed, produce flow gap between the inner peripheral of housing and the valve plug, medicinal liquid can flow.
3. liquid medicine injection apparatus as claimed in claim 1 is characterized in that, also has the detecting sensor of diaphragm and detection pipe blocked state; Above-mentioned diaphragm and above-mentioned valve plug are configured in the bottom of the spatial portion of valve casing with separating predetermined space, when pipe stops up, by the past below of the elasticity exapnsion of himself; Above-mentioned detecting sensor is configured in diaphragm-operated bottom, and when diaphragm during towards detecting sensor one side exapnsion, this detecting sensor is sent electric signal by liquid, metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100562344A CN100428965C (en) | 2004-08-05 | 2004-08-05 | Liquid medicine injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100562344A CN100428965C (en) | 2004-08-05 | 2004-08-05 | Liquid medicine injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730110A CN1730110A (en) | 2006-02-08 |
| CN100428965C true CN100428965C (en) | 2008-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100562344A Expired - Fee Related CN100428965C (en) | 2004-08-05 | 2004-08-05 | Liquid medicine injection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100428965C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065359B1 (en) * | 2009-02-02 | 2011-09-16 | 주식회사 우영메디칼 | Multi control apparatus for injecting a fixed quantity medicine |
| CA2848281A1 (en) * | 2010-04-01 | 2011-10-06 | Woo Young Medical Co., Ltd. | Liquid infusion apparatus |
| CN109498914A (en) * | 2019-01-21 | 2019-03-22 | 河南埃尔森智能科技有限公司 | A kind of automatic intravenous injection system and its injecting method based on 3D vision guide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827439A (en) * | 1972-10-30 | 1974-08-06 | Heyer Schulte Corp | Plug valve for physiological shunt systems |
| US4398542A (en) * | 1980-12-15 | 1983-08-16 | Ivac Corporation | Pressure diaphragm |
| FR2682603A1 (en) * | 1991-10-18 | 1993-04-23 | Technologie Medicale Sarl | Device for manually controlling suction in a tracheal tube |
| US5396925A (en) * | 1993-12-16 | 1995-03-14 | Abbott Laboratories | Anti-free flow valve, enabling fluid flow as a function of pressure and selectively opened to enable free flow |
| US6077055A (en) * | 1998-12-03 | 2000-06-20 | Sims Deltec, Inc. | Pump system including cassette sensor and occlusion sensor |
| US20020151838A1 (en) * | 2001-04-16 | 2002-10-17 | Beck Kent F. | Feeding set adaptor |
-
2004
- 2004-08-05 CN CNB2004100562344A patent/CN100428965C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827439A (en) * | 1972-10-30 | 1974-08-06 | Heyer Schulte Corp | Plug valve for physiological shunt systems |
| US4398542A (en) * | 1980-12-15 | 1983-08-16 | Ivac Corporation | Pressure diaphragm |
| FR2682603A1 (en) * | 1991-10-18 | 1993-04-23 | Technologie Medicale Sarl | Device for manually controlling suction in a tracheal tube |
| US5396925A (en) * | 1993-12-16 | 1995-03-14 | Abbott Laboratories | Anti-free flow valve, enabling fluid flow as a function of pressure and selectively opened to enable free flow |
| US6077055A (en) * | 1998-12-03 | 2000-06-20 | Sims Deltec, Inc. | Pump system including cassette sensor and occlusion sensor |
| US20020151838A1 (en) * | 2001-04-16 | 2002-10-17 | Beck Kent F. | Feeding set adaptor |
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| Publication number | Publication date |
|---|---|
| CN1730110A (en) | 2006-02-08 |
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Granted publication date: 20081029 |