DE4129691A1 - Catheter for insertion in urethra - has filling duct with secondary cooling duct and balloon connected via third duct - Google Patents

Catheter for insertion in urethra - has filling duct with secondary cooling duct and balloon connected via third duct

Info

Publication number
DE4129691A1
DE4129691A1 DE4129691A DE4129691A DE4129691A1 DE 4129691 A1 DE4129691 A1 DE 4129691A1 DE 4129691 A DE4129691 A DE 4129691A DE 4129691 A DE4129691 A DE 4129691A DE 4129691 A1 DE4129691 A1 DE 4129691A1
Authority
DE
Germany
Prior art keywords
catheter
duct
balloon
urethra
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE4129691A
Other languages
German (de)
Other versions
DE4129691C2 (en
Inventor
Alfons Prof Dr Med Hofstetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE4129691A priority Critical patent/DE4129691C2/en
Publication of DE4129691A1 publication Critical patent/DE4129691A1/en
Application granted granted Critical
Publication of DE4129691C2 publication Critical patent/DE4129691C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material

Abstract

The catheter (10) is of the three-way type with a first duct (12) which is used for filling the bladder. A second duct (14) is connected to the proximal side of a first balloon and is used for supplying the cooling medium. A third duct (16) passes through a second balloon (18) attached to the distal end of the catheter (20). The open end of the third duct is positioned on the distal side of the second balloon.The three ducts are either installed one inside another or they run side by side. USE/ADVANTAGE - catheter for insertion in the urethra. It does not damage the urethra wall.

Description

Die vorliegende Erfindung betrifft einen Katheter insbesondere zum Schutz der Harnröhrenwand.The present invention relates to a catheter especially to protect the urethral wall.

Verschiedenartige Katheter sind bereits aus dem Stand der Technik bekannt. Diese Katheter sind nicht geeignet für z. B. Operationen im Zusammenhang mit der interstitiellen Thermokoagulation (ITK) von beispielsweise Prostatatumoren, da mit ihnen weder bei der ITK notwendige Temperatur- und Druckkontrollen, noch Temperatur- und Druckregelungen möglich sind.Different types of catheters are already from the prior art Technology known. These catheters are not suitable for e.g. B. Operations related to the interstitial Thermocoagulation (ITK) of prostate tumors, for example with them neither at the ITK necessary temperature and Pressure controls, temperature and pressure controls possible are.

Gerade bei der ITK ist es aber erforderlich Temperatur- und Druckmessungen durchzuführen, um eventuell auftretende Temperatur- und/oder Druckschädigungen an beispielsweise der Harnröhrenwand zu verhindern.Especially with the ITC, however, it is necessary to have temperature and To carry out pressure measurements in order to detect any Temperature and / or pressure damage to, for example, the To prevent urethral wall.

Aufgabe der vorliegenden Erfindung ist es, einen Katheter, insbesondere zum Schutz der Harnröhrenwand bereitzustellen, der eine gleichzeitige Temperatur- und/oder Druckmessung sowie eine Temperatur- und/oder Druckregelung erlaubt. The object of the present invention is to provide a catheter especially to protect the urethral wall, which a simultaneous temperature and / or pressure measurement as well temperature and / or pressure control allowed.  

Diese Aufgabe wird dadurch gelöst, daß der erfindungsgemäße Katheter als Dreiwegkatheter mit einem ersten Kanal, welcher zur Harnblasenfüllung verwendet wird, und einem mit einem Kühlmittel gefüllten zweiten Kanal, der in einem ersten proximalen Ballon zur Aufnahme des Kühlmittels mündet, und einem dritten Kanal, welcher am distalen Katheterende in einen zweiten distalen Ballon mündet, der mit einem flüssigen und/oder gasförmigen Medium befüllbar ist und zur Fixierung des Katheters am Blasenauslaß dient, ausgebildet ist, wobei die Kanäle ineinander und/oder nebeneinander geführt sind und über ein leitfähiges Material gekoppelte Druck- und Temperaturfühler an der Oberfläche des ersten Ballones befestigt und mit einer kunststoffartigen Schutzschicht überzogen sind. Damit ist es möglich Temperatur- und/oder Druckschäden an beispielsweise einer Harnröhrenwand während des operativen Eingriffes zu vermeiden.This object is achieved in that the invention Catheter as a three-way catheter with a first channel, which used for urinary bladder filling, and one with a Coolant-filled second channel in a first proximal balloon for receiving the coolant, and a third channel, which at the distal end of the catheter into one second distal balloon that opens with a liquid and / or gaseous medium can be filled and for fixation of the catheter at the bladder outlet is formed, wherein the channels are guided into one another and / or next to one another and printing and coupled via a conductive material Temperature sensor on the surface of the first balloon attached and with a plastic-like protective layer are covered. So it is possible temperature and / or Pressure damage to, for example, a urethral wall during to avoid the surgical intervention.

Vorteilhafterweise besteht der erfindungsgemäße Anmeldungsgegenstand aus Kunststoff und/oder Metall.Advantageously, there is the invention Subject of application made of plastic and / or metal.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus dem im folgenden beschrieben Ausführungsbeispiel.Further details, features and advantages of the invention result from that described below Embodiment.

Die Fig. 1 zeigt eine schematische Darstellung des erfindungsgemäßen Katheters 10. Der Katheter 10 ist erfindungsgemäß als Dreiwegkatheter ausgebildet. Dabei ist ein erster Kanal 12, welcher zur Harnblasenfüllung verwendet wird, mit einem mit einem Kühlmittel gefüllten zweiten Kanal 14, der in einem ersten proximalen Ballon 22 zur Aufnahme des Kühlmittels mündet, und mit einem dritten Kanal 16, welcher am distalen Katheterende 20 in einen zweiten distalen Ballon 18 mündet, der mit einem flüssigen und/oder gasformigen Medium befüllbar ist und zur Fixierung des Katheters 10 am Blasenauslaß dient, ineinander und/oder nebeneinander geführt. Ein leitfähiges Material 24 verbindet Druck- und Temperaturfühler 16, welche an der Oberfläche des ersten Ballones 22 befestigt und mit einer kunststoffartigen Schutzschicht 26 überzogen sind. Die Druck- und Temperaturfühler 16 sind über das leitfähige Material 24 mit Druck- und Temperatur-Meß- und Regelungsgeräten (nicht dargestellt) außerhalb des Katheters 10 verbunden. Fig. 1 shows a schematic representation of the catheter 10 of the invention. The catheter 10 is designed according to the invention as a three-way catheter. There is a first channel 12 , which is used for urinary bladder filling, with a second channel 14 filled with a coolant, which opens into a first proximal balloon 22 for receiving the coolant, and with a third channel 16 , which at the distal catheter end 20 into one second distal balloon 18 opens, which can be filled with a liquid and / or gaseous medium and serves to fix the catheter 10 at the bladder outlet, guided into one another and / or next to one another. A conductive material 24 connects pressure and temperature sensors 16 , which are attached to the surface of the first balloon 22 and are covered with a plastic-like protective layer 26 . The pressure and temperature sensors 16 are connected via the conductive material 24 to pressure and temperature measuring and control devices (not shown) outside the catheter 10 .

Der erfindungsgemäße Katheter 10 besteht aus Kunststoff, beispielsweise Silikon oder Latex oder Gummi oder Polyurethan, und/oder Metall.The catheter 10 according to the invention consists of plastic, for example silicone or latex or rubber or polyurethane, and / or metal.

Claims (2)

1. Katheter, insbesondere zum Schutz der Harnröhrenwand, dadurch gekennzeichnet, daß der Katheter (10) als Dreiwegkatheter mit einem ersten Kanal (12), welcher zur Harnblasenfüllung verwendet wird, und einem mit einem Kühlmittel gefüllten zweiten Kanal (14), der in einem ersten proximalen Ballon (22) zur Aufnahme des Kühlmittels mündet, und einem dritten Kanal (16), welcher am distalen Katheterende (20) in einen zweiten distalen Ballon (13) mündet, der mit einem flüssigen und/oder gasförmigen Medium befüllbar ist und zur Fixierung des Katheters (10) am Blasenauslaß dient, ausgebildet ist, wobei die Kanäle (12, 14, 16) ineinander und/oder nebeneinander geführt sind und über ein leitfähiges Material (24) gekoppelte Druck- und Temperaturfühler (16) an der Oberfläche des ersten Ballones (22) befestigt und mit einer kunststoffartigen Schutzschicht (26) überzogen sind.1. Catheter, in particular for protecting the urethral wall, characterized in that the catheter ( 10 ) as a three-way catheter with a first channel ( 12 ), which is used for urinary bladder filling, and a second channel ( 14 ) filled with a coolant, which in a opens first proximal balloon ( 22 ) for receiving the coolant, and a third channel ( 16 ) which opens at the distal end of the catheter ( 20 ) into a second distal balloon ( 13 ) which can be filled with a liquid and / or gaseous medium and for Fixation of the catheter ( 10 ) at the bladder outlet is formed, the channels ( 12 , 14 , 16 ) being guided into one another and / or next to one another and via a conductive material ( 24 ) coupled pressure and temperature sensors ( 16 ) on the surface of the first balloons ( 22 ) are fixed and covered with a plastic-like protective layer ( 26 ). 2. Katheter nach Anspruch 1, dadurch gekennzeichnet, daß der Katheter (10) aus Kunststoff und/oder Metall besteht.2. Catheter according to claim 1, characterized in that the catheter ( 10 ) consists of plastic and / or metal.
DE4129691A 1991-09-08 1991-09-08 catheter Expired - Fee Related DE4129691C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4129691A DE4129691C2 (en) 1991-09-08 1991-09-08 catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4129691A DE4129691C2 (en) 1991-09-08 1991-09-08 catheter

Publications (2)

Publication Number Publication Date
DE4129691A1 true DE4129691A1 (en) 1993-03-11
DE4129691C2 DE4129691C2 (en) 1999-03-11

Family

ID=6440032

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4129691A Expired - Fee Related DE4129691C2 (en) 1991-09-08 1991-09-08 catheter

Country Status (1)

Country Link
DE (1) DE4129691C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108210089A (en) * 2018-01-26 2018-06-29 浙江大学 The gas that the postoperative per anum of Colon and rectum takes out tumor specimen fills formula lane device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370890A1 (en) * 1988-11-21 1990-05-30 Technomed Medical Systems Apparatus for the surgical treatment of tissues by hyperthermia, preferably the prostate, equipped with heat protection means preferably comprising means forming radioreflecting screen
US4950267A (en) * 1987-11-27 1990-08-21 Olympus Optical Co., Ltd. Laser beam treatment device for an endoscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950267A (en) * 1987-11-27 1990-08-21 Olympus Optical Co., Ltd. Laser beam treatment device for an endoscope
EP0370890A1 (en) * 1988-11-21 1990-05-30 Technomed Medical Systems Apparatus for the surgical treatment of tissues by hyperthermia, preferably the prostate, equipped with heat protection means preferably comprising means forming radioreflecting screen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108210089A (en) * 2018-01-26 2018-06-29 浙江大学 The gas that the postoperative per anum of Colon and rectum takes out tumor specimen fills formula lane device
CN108210089B (en) * 2018-01-26 2023-06-16 浙江大学 Air inflation type channel device for taking out tumor specimen through anus after colorectal operation

Also Published As

Publication number Publication date
DE4129691C2 (en) 1999-03-11

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee