WO1983003766A1 - A device for introducing a catheter into a blood-vessel - Google Patents
A device for introducing a catheter into a blood-vessel Download PDFInfo
- Publication number
- WO1983003766A1 WO1983003766A1 PCT/SE1983/000151 SE8300151W WO8303766A1 WO 1983003766 A1 WO1983003766 A1 WO 1983003766A1 SE 8300151 W SE8300151 W SE 8300151W WO 8303766 A1 WO8303766 A1 WO 8303766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- introducer
- cannula
- catheter
- blood
- vessel
- Prior art date
Links
Classifications
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0662—Guide tubes
- A61M25/0668—Guide tubes splittable, tear apart
Definitions
- the present invention refers to a device for introducing a catheter into a blood-vessel and comprising a needle for puncturing the blood-vessel and an introducer-cannula intended to be introduced into the blood-vessel together with the needle and through which the catheter-cannula is intended to 0 be introduced into the blood-vessel after removal of the needle, said introducer-cannula having a front end with a reduced or tapering outer, diameter and which tightly connects to the needle.
- the catheter-over- needle technique
- the catheter is passed on the outside of the needle and this method is used for central venous 5 catheters.
- This method however involves a great risk for • ' .. injuries on the catheterized and neighbouring organs owing to the long needle (16-18 cm.), which besides make the device difficult to handle.
- the catheter is passed through the needle, " catheter-through-steel-needle” technique, at which the needle either may remain or be removed after the introduction of the catheter. Also this methods involves a great risk for injuries and a risk for catheter embolism, by the fact that the catheter easily is damaged by the sharp needle tip.
- a stiff wire is used which is introduced into the blood-vessel
- Desilet's and Hoffmanns technique there is provided a dilatation of the puncture hole by means of a special 0 introducer-cannula, through which the catheter then is introduced. It is however also a complicated method.
- the catheter is introduced into the blood-vessel through the introducer-cannula after the removal of the 0 needle, after which the introducer-cannula is removed from the blood-vessel by displacing it backwards along the catheter.
- the diameter of the catheter is limited by the inside diameter of the introducer-cannula, which is substantially constant except at a rear enlarged section.
- the introduction of the 5 catheter which has substantially the same outer diameter as the inside diameter of the introducer- cannula will be difficult because of the friction against the inner walls of the introducer-cannula along the substantial length thereof. Besides the removal of the introducer-cannula from the blood-vessel can cause problems if the outer diameter of the catheter is not considerably smaller than the inside diameter of the introducer-cannula.
- the device comprises a sleeve, the
- the purpose of the present invention is to provide an 20 introducer-cannula adapted for the introduction of short catheters into peripheral blood-vessels as well as long central venous catheters and which shall fulfil the following demands :
- Fig. 1 is a longitudinal section through an introducer-cannula according to the invention.
- Fig. 2 is a longitudinal section of the whole device including the needle
- Fig 3 is a longitudinal section according to f g. 2 of another embodiment .
- Fig. 4a-c show schematically in a view from above different steps of the introduction of a catheter through an introducer-cannula according to the invention
- Fig. 5-8 show in perspective the front end of different embodiments of the introducer-cannula according to the invention.
- the introducer-cannula 10 is manufactured by a stiff plastic material, for example Teflon(R) and has a reduced front end. Alternatively the whole introducer-cannula 10 tapers towards the front end as is shown in fig. 3,6 and 7.
- the opposite end of the introducer-cannula 10 is shaped as a holder member 11 and is provided with a grip 12 for facilitating the insertion.
- a needle 13 is intended to be received within the introducer- cannula as is shown i fig. 2.
- the reduced front end of the introducer-cannula 10 connects tightly to the needle 13 for facilitating the insertion.
- the needle is provided with a holder member 14 with a grip 15. It would also be possible, as is shown in fig. 3, to give the needle 13 a shape corresponding to the introducer-cannula 10, i.e. a reduced front end or alternatively tapering over its entire length.
- the front tip of the introducer-cannula is provided with a slit 16, which either as is shown in fig. 4 extends all the way to said end or as is shown in fig. 1-4 and 6-7 respectively ends shortly before the end.
- the embodiment shown in fig. 6 is provided with two slits 16 on opposite sides of the introducer-cannula 10.
- a line of weakness 17 connects to the slit 16, for example a groove, perforation or the like, which extends along the entire introducer-cannula 10 including its holder member 11 and along which the introducer-cannula can be splitted at its withdrawal.
- the introducer-cannula 10 has no slit and is instead provided with a line of weakness 17 extending over its entire length.
- the device is used in the following way.
- the blood-vessel either a peripheral or central vein or artery, is punctured by means of the tip of the needle 13 and the whole device comprising needle 13 and introducer-cannula 10 is inserted together into the blood-vessel to the desired position.
- the needle 13 is withdrawn.
- the catheter 18 is then introduced through the introducer-cannula 10, at which the tip of the catheter forces the front end of the introducer-cannula
- the introducer-cannula is easily removed from the catheter by severing it along the line of weakness 17.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
An introducer-cannula for introducing a catheter into a blood-vessel. The introducer-cannula (10) is arranged on the outside of a needle (13) and is introduced into the blood-vessel together with this. The introducer-cannula has a front end with a reduced or tapering diameter, said front end connects tightly to the needle. The front end is provided with an expandable, e.g. slotted portion (16), which can be severed by the tip to a catheter (18) having a diameter exceeding that of said front end and permit the passage of the catheter through the introducer-cannula (10) into the blood-vessel after removal of the needle (13). In connection to said expandable portion (16) there is preferably arranged a line of weakness (17) extending over the rest of the length of the introducer-cannula and along which the introducer-cannula can be severed for facilitating its withdrawal from the catheter (18) when this has been located in the blood-vessel.
Description
A DEVICE FOR INTRODUCING A CATHETER INTO A BLOOD-VESSEL
BACKGROUND OF THE INVENTION
5 The present invention refers to a device for introducing a catheter into a blood-vessel and comprising a needle for puncturing the blood-vessel and an introducer-cannula intended to be introduced into the blood-vessel together with the needle and through which the catheter-cannula is intended to 0 be introduced into the blood-vessel after removal of the needle, said introducer-cannula having a front end with a reduced or tapering outer, diameter and which tightly connects to the needle.
5 Plastic catheters are inserted into practically all body cavities and are used for treatment and examination purposes within the modern medical service. In order to introduce especially soft catheters in • for example a blood-vessel special devices are needed and there are suggested a number of 0 methods, which however all suffer from certain drawbacks.
Among these method it can be mentioned "the catheter-over- needle" technique, i.e. the catheter is passed on the outside of the needle and this method is used for central venous 5 catheters. This method however involves a great risk for •' .. injuries on the catheterized and neighbouring organs owing to the long needle (16-18 cm.), which besides make the device difficult to handle.
0 According to another method the catheter is passed through the needle, " catheter-through-steel-needle" technique, at which the needle either may remain or be removed after the introduction of the catheter. Also this methods involves a great risk for injuries and a risk for catheter embolism, by the fact that the catheter easily is damaged by the sharp needle tip.
It is also known to use an outer introducer-cannula by
Teflon(R) , which is introduced into the blood-vessel together with the needle. After the puncture of the blood-vessel the needle is removed and the catheter is then introduced into the blood-vessel through the introducer-cannula. This method
05 however, easily causes injuries at the introduction owing to the considerable diameter of the introducer-cannula.
According to a further method, called Seldinger's technique, a stiff wire is used which is introduced into the blood-vessel
10 through the needle, after which the catheter is introduced over the wire, which act as a guide for the catheter. When the catheter .has been introduced the wire is withdrawn . It is however a complicated method, which often makes it necessary to perform a skin incision and to dilate the path for
15 permitting entrance of the catheter.
According to a developement of this technique, called Desilet's and Hoffmanns technique, there is provided a dilatation of the puncture hole by means of a special 0 introducer-cannula, through which the catheter then is introduced. It is however also a complicated method.
Through SE-B 414.453 there is previously known an introducer-cannula for introducing catheters into a 5 blood-vessel and which is provided with a chamfered front end
' - ,. which tightly connects to the needle in order to facilitate the introduction of the introducer-cannula into the blood-vessel. The catheter is introduced into the blood-vessel through the introducer-cannula after the removal of the 0 needle, after which the introducer-cannula is removed from the blood-vessel by displacing it backwards along the catheter. The diameter of the catheter is limited by the inside diameter of the introducer-cannula, which is substantially constant except at a rear enlarged section. The introduction of the 5 catheter, which has substantially the same outer diameter as the inside diameter of the introducer- cannula will be difficult because of the friction against the inner walls of the introducer-cannula along the substantial length thereof.
Besides the removal of the introducer-cannula from the blood-vessel can cause problems if the outer diameter of the catheter is not considerably smaller than the inside diameter of the introducer-cannula.
05
Through DE-A 29.36.655 it is previously known a device for introducing a sampling instrument, urinary catheter or the like into a body cavity, e.g. the urethra, without the risk for contamination by germs. The device comprises a sleeve, the
10 front end of which is closed and can be broken by means of the instrument, the catheter or the like. Such an introducer sleeve could not be used in connection with the introduction of venous catheters into a blood-vessel, where yoύ firstly have to penetrate the skin. Besides it will not be possible to
15 break the closed end of the sleeve by a soft venous catheter.
THE PURPOSE AND MOST IMPORTANT FEATURES OF THE INVENTION
The purpose of the present invention is to provide an 20 introducer-cannula adapted for the introduction of short catheters into peripheral blood-vessels as well as long central venous catheters and which shall fulfil the following demands :
25 a) it shall be easily inserted into a blood-vessel and not - . injure this or the neighbouring organs, b) it shall be easily removable from the blood-vessel in order to prevent ackumulation of blood and growth of germs between the introducer-cannula and the catheter, 0 c) it shall not damage the catheter and by that cause catheter embolism, d) it shall permit the insertion of both soft and stiff catheters , e) it shall not require special tools or operations as stiff 5 wires, skin incisions or dilitation of the puncture hole, f) it shall be cheap to manufacture.
These demands have according to the invention been fulfilled
by the fact that the inside diameter of said front end is likewise reduced or tapering and that the front end is provided with an expandable portion intended to be severed by the catheter at the introduction thereof and to permit the passage of a catheter having an outer diameter exceeding the inside diameter of the front end of the introducer-cannula.
Fig. 1 is a longitudinal section through an introducer-cannula according to the invention.
Fig. 2 is a longitudinal section of the whole device including the needle,
Fig 3 is a longitudinal section according to f g. 2 of another embodiment ,
Fig. 4a-c show schematically in a view from above different steps of the introduction of a catheter through an introducer-cannula according to the invention,
Fig. 5-8 show in perspective the front end of different embodiments of the introducer-cannula according to the invention.
DESCRIPTION OF EMBODIMENTS
The introducer-cannula 10 is manufactured by a stiff plastic material, for example Teflon(R) and has a reduced front end. Alternatively the whole introducer-cannula 10 tapers towards the front end as is shown in fig. 3,6 and 7. The opposite end of the introducer-cannula 10 is shaped as a holder member 11 and is provided with a grip 12 for facilitating the insertion.
A needle 13 is intended to be received within the introducer- cannula as is shown i fig. 2. The reduced front end of the introducer-cannula 10 connects tightly to the needle 13 for facilitating the insertion. Also the needle is provided with a holder member 14 with a grip 15. It would also be possible, as is shown in fig. 3, to give the needle 13 a shape corresponding to the introducer-cannula 10, i.e. a reduced front end or alternatively tapering over its entire length.
The front tip of the introducer-cannula is provided with a
slit 16, which either as is shown in fig. 4 extends all the way to said end or as is shown in fig. 1-4 and 6-7 respectively ends shortly before the end. The embodiment shown in fig. 6 is provided with two slits 16 on opposite sides of the introducer-cannula 10. A line of weakness 17 connects to the slit 16, for example a groove, perforation or the like, which extends along the entire introducer-cannula 10 including its holder member 11 and along which the introducer-cannula can be splitted at its withdrawal. In the embodiment according to fig. 8 the introducer-cannula 10 has no slit and is instead provided with a line of weakness 17 extending over its entire length.
The device is used in the following way. The blood-vessel, either a peripheral or central vein or artery, is punctured by means of the tip of the needle 13 and the whole device comprising needle 13 and introducer-cannula 10 is inserted together into the blood-vessel to the desired position. After that the needle 13 is withdrawn. The catheter 18 is then introduced through the introducer-cannula 10, at which the tip of the catheter forces the front end of the introducer-cannula
10 apart, as is illustrated in fig. 4a-c, and the catheter can pass through the introducer-cannula and into the blood-vessel.
The introducer-cannula is easily removed from the catheter by severing it along the line of weakness 17.
The device according to the invention has a number of important advantages:
a) it permits a careful insertion into the blood-vessel with less risk for injuries as compared to most of the previously known methods, b) it can easily be removed from the blood-vessel, c) no risk for damages on the catheter and catheter embolism since the catheter is inserted through a non-sharp Teflon(R)- sleeve, d) it permits the introduction of both soft and stiff catheters , both periperal and central venous catheter and both
artery and venous catheters, e) it permits a simple introduction, the introducer-cannula dilates the blood-vessel at the same time and no guide wires, scalpels or the like are needed, f) it is cheap to manufacture.
The invention is of course not limited to the above described and shown embodiments, but can be modified within the scope of the claims.
Claims
\ 1. A device for introducing a catheter into a blood-vessel and comprising a needle (13) for puncturing the blood-vessel and an
15 introducer-cannula (10) intended to be introduced into the blood-vessel together with the needle and through which the catheter (18) is intended to be introduced into the blood-vessel after removal of the needle, said introducer-cannula (10) having a front end with a reduced or
20 tapering outer diameter and which tightly connects to the needle ( 1 ) , c h a r a c t e r i z e d i n, that the inside diameter of said front end is likewise reduced or tapering and that the front end is provided with an
25 expandable portion (16) intended to be severed by the catheter (18) at the introduction thereof and to permit the passage of a catheter having an outer diameter exceeding the inside diameter of the front end of the introducer-cannula (10).
30 2. A device according to claim 1 , c h a r a c t e r i z e d i n, that said expandable portion comprises a slit (16).
3. A device according to claim 1 or 2 , 35 . c h a r a c t e r i z e d i n, that in connection to said expandable portion (16) there is arranged a line of weakness (17) extending over the rest of the length of the introducer-cannula (10).
4. A device according to any of the preceding claims, c h a r a c t e r i z e d i n, that the needle (13) is provided ,with a front end having a 05 reduced or tapering diameter corresponding to that of the introducer-cannula (10) .
OMPI
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK588783A DK588783A (en) | 1982-04-22 | 1983-12-21 | DEVICE FOR INTRODUCING CATHETERS IN A BLOODY VEHICLE |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE1982/000127 WO1982003558A1 (en) | 1981-04-23 | 1982-04-22 | A device for introducing a catheter-cannula into a blood-vessel |
SEPCT/SE82/00127 | 1982-04-22 | ||
SE8203499A SE8203499L (en) | 1982-06-07 | 1982-06-07 | Catheter introducer - has puncture needle in cannula with weakened line for splitting on insertion of catheter |
SE8203499-2 | 1982-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1983003766A1 true WO1983003766A1 (en) | 1983-11-10 |
Family
ID=26658065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1983/000151 WO1983003766A1 (en) | 1982-04-22 | 1983-04-22 | A device for introducing a catheter into a blood-vessel |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP0093101A3 (en) |
JP (1) | JPS59500749A (en) |
AU (1) | AU1474183A (en) |
DK (1) | DK588783A (en) |
WO (1) | WO1983003766A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865593A (en) * | 1987-06-25 | 1989-09-12 | Sherwood Medical Company | Splittable cannula |
US4976691A (en) * | 1989-01-23 | 1990-12-11 | Harvinder Sahota | Topless catheters |
US5090958A (en) * | 1988-11-23 | 1992-02-25 | Harvinder Sahota | Balloon catheters |
US5143093A (en) * | 1990-10-05 | 1992-09-01 | Harvinder Sahota | Methods of angioplasty treatment of stenotic regions |
US5147377A (en) * | 1988-11-23 | 1992-09-15 | Harvinder Sahota | Balloon catheters |
US5160321A (en) * | 1988-11-23 | 1992-11-03 | Harvinder Sahota | Balloon catheters |
WO1993013821A1 (en) * | 1992-01-08 | 1993-07-22 | Süddeutsche Feinmechanik GmbH | Pre-slit cannula needle and method of producing it |
US5320605A (en) * | 1993-01-22 | 1994-06-14 | Harvinder Sahota | Multi-wire multi-balloon catheter |
EP0623329A1 (en) * | 1993-05-04 | 1994-11-09 | F.C.I.(France Chirurgie Instrumentation) S.A. | Ophthalmological intubation process |
US5370617A (en) * | 1993-09-17 | 1994-12-06 | Sahota; Harvinder | Blood perfusion balloon catheter |
US5800393A (en) * | 1997-03-07 | 1998-09-01 | Sahota; Harvinder | Wire perfusion catheter |
US5951514A (en) * | 1997-03-07 | 1999-09-14 | Sahota; Harvinder | Multi-lobe perfusion balloon |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60234671A (en) * | 1984-05-09 | 1985-11-21 | テルモ株式会社 | Catheter inserter |
US4619644A (en) * | 1984-09-06 | 1986-10-28 | Scott Van E | Clinical catheterization technique and apparatus for performing same |
JPH0611340B2 (en) * | 1986-05-14 | 1994-02-16 | テルモ株式会社 | Method and apparatus for manufacturing medical device introduction needle |
WO1988003035A2 (en) * | 1986-10-31 | 1988-05-05 | Titan Medical, Inc. | Applicator with splittable cannula for placement of flexible catheter |
US4883468A (en) * | 1987-04-08 | 1989-11-28 | Terumo Kabushiki Kaisha | Medical tool introduction cannula and method of manufacturing the same |
US6793652B1 (en) | 1999-06-02 | 2004-09-21 | Power Medical Interventions, Inc. | Electro-mechanical surgical device |
US7951071B2 (en) | 1999-06-02 | 2011-05-31 | Tyco Healthcare Group Lp | Moisture-detecting shaft for use with an electro-mechanical surgical device |
US8025199B2 (en) | 2004-02-23 | 2011-09-27 | Tyco Healthcare Group Lp | Surgical cutting and stapling device |
JP2004530470A (en) * | 2001-04-16 | 2004-10-07 | サイティック コーポレイション | Radially extendable dilator |
AU2002320187A1 (en) | 2001-06-29 | 2003-03-03 | A.B. Korkor Medical, Inc. | Catheter introducer having an expandable tip |
ES2293009T3 (en) * | 2002-07-31 | 2008-03-16 | Power Medical Interventions, Inc. | INTRODUCTORY DEVICE IN HOLES. |
FR2908042B1 (en) * | 2006-11-08 | 2009-06-05 | Bruno Fayet | MONOCANALICULONASAL AND / OR MONOCANALICULAR INTUBATION ASSEMBLY, IN PARTICULAR FOR LACRYMONASAL IMPERFORATION. |
US8469987B2 (en) | 2007-08-09 | 2013-06-25 | Senorx, Inc. | Split sheath for trocar assembly |
AU2010241934B2 (en) | 2009-04-30 | 2014-01-16 | Cook Medical Technologies Llc | System and method for fiducial deployment |
US9072542B2 (en) | 2009-12-18 | 2015-07-07 | Cook Medical Technologies Llc | System and method for fiducial deployment |
CN101797408B (en) * | 2010-03-22 | 2011-11-30 | 中南大学 | Arteriovenous remaining needle |
US8838208B2 (en) | 2011-06-28 | 2014-09-16 | Cook Medical Technologies Llc | Fiducial deployment needle system |
WO2014133777A1 (en) | 2013-02-26 | 2014-09-04 | Cook Medical Technologies Llc | Ratchet-slide handle and system for fiducial deployment |
US9770262B2 (en) | 2014-06-09 | 2017-09-26 | Cook Medical Technologies Llc | Screw-driven handles and systems for fiducial deployment |
WO2015195232A1 (en) | 2014-06-16 | 2015-12-23 | Cook Medical Technologies Llc | Plunger-driven collet handle and system for fiducial deployment |
CN107106208A (en) | 2014-12-03 | 2017-08-29 | 库克医学技术有限责任公司 | Endoscopic ultrasonic primary standard substance needle tubing stylet Handleset |
Citations (6)
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SE327784B (en) * | 1966-11-17 | 1970-08-31 | Husted Andersen | |
DE2456980A1 (en) * | 1974-12-03 | 1976-06-10 | Gerhard Guenther | Resilient sleeve for introducing catheters and endoscopes - to reduce risk of infection of bladder, ureter and kidneys |
SE388777B (en) * | 1971-01-29 | 1976-10-18 | Braun Melsungen Ag | PUNCTURE CANNEL FOR INSERTING A FLEXIBLE CATHETER INTO A BLOOD VESSEL |
DE2936655A1 (en) * | 1978-09-13 | 1980-03-27 | Neil O | DEVICE FOR INSERTING A MEDICAL INSTRUMENT IN A BODY PAINT |
FR2439591A1 (en) * | 1978-10-25 | 1980-05-23 | Technological Supply | DEVICE FOR INTRODUCING A CATHETER OR PROBE INTO A BLOOD VESSEL |
EP0021446A1 (en) * | 1979-06-30 | 1981-01-07 | Intermedicat GmbH | Short separable plastic catheter |
Family Cites Families (2)
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US3877429A (en) * | 1973-11-30 | 1975-04-15 | David L Rasumoff | Catheter placement device |
DE3107983A1 (en) * | 1981-03-03 | 1982-09-16 | Max Dr. 8520 Erlangen Hubmann | Catheter set |
-
1983
- 1983-04-22 WO PCT/SE1983/000151 patent/WO1983003766A1/en unknown
- 1983-04-22 EP EP83850105A patent/EP0093101A3/en not_active Withdrawn
- 1983-04-22 EP EP19830901267 patent/EP0120863A1/en not_active Withdrawn
- 1983-04-22 AU AU14741/83A patent/AU1474183A/en not_active Abandoned
- 1983-04-22 JP JP50136483A patent/JPS59500749A/en active Pending
- 1983-12-21 DK DK588783A patent/DK588783A/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE327784B (en) * | 1966-11-17 | 1970-08-31 | Husted Andersen | |
SE388777B (en) * | 1971-01-29 | 1976-10-18 | Braun Melsungen Ag | PUNCTURE CANNEL FOR INSERTING A FLEXIBLE CATHETER INTO A BLOOD VESSEL |
DE2456980A1 (en) * | 1974-12-03 | 1976-06-10 | Gerhard Guenther | Resilient sleeve for introducing catheters and endoscopes - to reduce risk of infection of bladder, ureter and kidneys |
DE2936655A1 (en) * | 1978-09-13 | 1980-03-27 | Neil O | DEVICE FOR INSERTING A MEDICAL INSTRUMENT IN A BODY PAINT |
FR2439591A1 (en) * | 1978-10-25 | 1980-05-23 | Technological Supply | DEVICE FOR INTRODUCING A CATHETER OR PROBE INTO A BLOOD VESSEL |
EP0021446A1 (en) * | 1979-06-30 | 1981-01-07 | Intermedicat GmbH | Short separable plastic catheter |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865593A (en) * | 1987-06-25 | 1989-09-12 | Sherwood Medical Company | Splittable cannula |
US5090958A (en) * | 1988-11-23 | 1992-02-25 | Harvinder Sahota | Balloon catheters |
US5147377A (en) * | 1988-11-23 | 1992-09-15 | Harvinder Sahota | Balloon catheters |
US5160321A (en) * | 1988-11-23 | 1992-11-03 | Harvinder Sahota | Balloon catheters |
US4976691A (en) * | 1989-01-23 | 1990-12-11 | Harvinder Sahota | Topless catheters |
US5143093A (en) * | 1990-10-05 | 1992-09-01 | Harvinder Sahota | Methods of angioplasty treatment of stenotic regions |
WO1993013821A1 (en) * | 1992-01-08 | 1993-07-22 | Süddeutsche Feinmechanik GmbH | Pre-slit cannula needle and method of producing it |
US5320605A (en) * | 1993-01-22 | 1994-06-14 | Harvinder Sahota | Multi-wire multi-balloon catheter |
EP0623329A1 (en) * | 1993-05-04 | 1994-11-09 | F.C.I.(France Chirurgie Instrumentation) S.A. | Ophthalmological intubation process |
FR2704749A1 (en) * | 1993-05-04 | 1994-11-10 | France Chirurgie Instr | Cannula for the placement of an ophthalmic probe. |
US5370617A (en) * | 1993-09-17 | 1994-12-06 | Sahota; Harvinder | Blood perfusion balloon catheter |
US5800393A (en) * | 1997-03-07 | 1998-09-01 | Sahota; Harvinder | Wire perfusion catheter |
US5951514A (en) * | 1997-03-07 | 1999-09-14 | Sahota; Harvinder | Multi-lobe perfusion balloon |
US6015402A (en) * | 1997-03-07 | 2000-01-18 | Sahota; Harvinder | Wire perfusion catheter |
Also Published As
Publication number | Publication date |
---|---|
EP0120863A1 (en) | 1984-10-10 |
EP0093101A2 (en) | 1983-11-02 |
DK588783D0 (en) | 1983-12-21 |
AU1474183A (en) | 1983-11-21 |
DK588783A (en) | 1983-12-21 |
EP0093101A3 (en) | 1984-12-05 |
JPS59500749A (en) | 1984-05-04 |
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