WO1992003963A1 - Deformable and removable sheath for optical catheter - Google Patents
Deformable and removable sheath for optical catheter Download PDFInfo
- Publication number
- WO1992003963A1 WO1992003963A1 PCT/US1991/006107 US9106107W WO9203963A1 WO 1992003963 A1 WO1992003963 A1 WO 1992003963A1 US 9106107 W US9106107 W US 9106107W WO 9203963 A1 WO9203963 A1 WO 9203963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheath
- catheter
- passageway
- patient
- proximate end
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/00078—Insertion part of the endoscope body with stiffening means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/01—Guiding arrangements therefore
-
- 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
-
- 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
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/306—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using optical fibres
-
- 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
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0266—Shape memory materials
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
Definitions
- the present invention relates to a deformable and removable sheath and more particularly to a deformable and removable sheath for use with an optical catheter which can be straightened by a guide wire for insertion in the passageway leading to a body cavity of a patient and can be returned to its original shape after insertion by removal of the guide wire.
- optical catheters on the market today are made in a conventional manner wherein they include an elongated body or shaft containing both image fibers and light carrying fibers.
- the catheter may also have additional passageways for irrigation and/or for conducting operative or investigative procedures. Sometimes it also will be provided with a steering mechanism for pointing the distal end thereof.
- Most optical catheters are configured in a shape to do one specific examination. For example, one may be a flexible cysto-urethroscope for examination of the lower genitourinary tract. Another may be a bronchoscope for looking into the respiratory tract. Still another may be a flexible hysteroscope for looking into the uterus. Once any of these devices is manufactured, it is locked into that configuration and generally can only be used for the purpose for which it was constructed. In other words, it is not adaptable for other types of examinations. An exception to this is that in rare instances one may use a flexible hysteroscope for looking into the bladder. If this is done only because the regular scope is broken or unavailable, or done by
- optical catheters Because of the necessity for providing a variety of types and styles of catheters, the cost invested in optical catheters can be quite high, inasmuch as they are not interchangeable.
- a deformable sheath for an optical catheter which includes an elongated, deformable hollow body having a normal predetermined shape which is compatible with its intended use in situ in a passageway in the patient.
- the body has a distal end and a proximate end with a plurality of channels extending therebetween.
- An optical catheter extends through one of the channels in the body, having a distal end aligned with the distal end of the body and a proximate end extending outwardly beyond the proximate end of the body, the catheter assuming the normal shape of the body.
- a substantially rigid guide wire is provided which is extendable through a second of the channels to straightened the body during insertion of the sheath into a passageway within the patient.
- the sheath can include a third channel for insertion of a laser fiber or laser lithotripsy or an electrohydraulic probe to fracture stones.
- a lock coupler is attached to the proximate end of the body for attachment to a fitting to properly align and connect the sheath and its catheter to external instrumentation.
- the guide wire can comprise a long slender body having a distal end and a proximate end receivable in the sheath body.
- a hand “ "e is attached to the proximate end of the gu a wire body to aid in inserting and withdrawing the guide wire from the sheath.
- deformable sheaths of the type just described can be provided each having a different natural shape depending on its intended use.
- the catheter which is quite expensive, can be removed from one sheath after use for one purpose and inserted in another sheath for use for another purpose.
- the sheath which is inexpensive, can be disposable to minimize the transfer of disease or infection from one patient to the next.
- Figure 1 is a perspective view showing a deformable and removable sheath and guide wire constructed in accordance with this invention for use with an optical catheter attached to a console;
- Figure 2 is a perspective view of the deformable and removable sheath of Figure 1 with the guide wire in place;
- Figure 3 is a perspect 2 view of the deformable and removable sheath with t e guide wire removed;
- Figure 4 is an enlarged vertical section, taken along line 4-4 of Figure 2, showing the interior of the guide wire with the sheath and catheter in place;
- Figure 5 is an enlarged perspective view of the proximate end of the deformable and removable sheath.
- a sheath S which may have a preformed shape as shown in Figure 1 which is compatible with the shape of the passageway of a patient in which it is to be used.
- This sheath S can be slid over catheter C which is removably connected to a console 10, such as the type shown in U.S. Patent No. 4,589,404. Since the catheter is flexible, it will assume the shape of sheath S when inserted therein. However, for insertion of the catheter and sheath into the passageway of the patient, a guide wire W is provided.
- the sheath S has a body 12 which has an open distal end 14 and a connector 16 at the proximate end.
- connector 16 has a central opening 18 for receiving the catheter C and a side opening 20 for receiving guide wire W.
- the central opening 18 is formed in a lock coupler in the form of a female luer lock 22 to allow attachment to a fitting which has a male luer adaptor so that the catheter will be positioned in a fixed position within the sleeve.
- the side opening 20 can receive the body 24 of guide wire W which is inserted and withdrawn by means of handle 26 on the proximate end thereof. Once inserted the guide wire W will straighten out the sheath to the position shown in Figure 2 for easy insertion into a passageway in a patient's body.
- catheter C is received in a channel 28 within sheath body 12.
- channel 28 can also receive devices, such as a laser fiber 30 for lithotripsy.
- an irrigation passageway 32 can be provided.
- a fiber optic bundle 34 is also provided which may include one or more optic fibers for transmitting light from console 10 to the distal end of the catheter C to illuminate the site under investigation.
- bundle 34 will contain coherent fibers to project an image to a video screen (not shown) associated with console 10. When inserted, these elements will extend through channel 28 to the distal end 14 of sheath S.
- preformed sleeves can be provided which are made of any shape, any diameter and almost any length.
- the shape given to the sleeve is dependant upon its use. For example, one curve is imparted to the body of the sheath for viewing the inside upper pole calys of the kidney. Still another shape is given to a sleeve for use with a catheter for viewing the inside of the middle calys. Still a third shape is used for viewing the inside lower calys of the kidney.
Abstract
A deformable sheath (S) for an optical catheter includes an elongated, deformable hollow body (12) having a normal predetermined shape which is compatible with its intended use in situ in a passageway in the patient. The body (12) has a distal end (14) and a proximate end (16) with a plurality of channels extending therebetween. An optical catheter (C) extends through one (28) of the channels in the body, having a distal end aligned with the distal end of the body and a proximate end extending outwardly beyond the proximate end of the body, the catheter assuming the normal shape of the body. A substantially rigid guide wire (W) is extendable through a second (20) of the channels to straighten the body during insertion of the sheath into a passageway within the patient. This guide wire (W) is removable from the body after insertion so that the body resumes its normal predetermined shape. The sheath can include a third channel for insertion of a laser fiber (30) for laser lithotripsy or an electrohydraulic probe to fracture stones. A lock coupler (22) is attached to the proximate end (16) of the body (12) for attachment to a fitting to properly align and connect the sheath and its catheter and other instruments with external instrumentation.
Description
DEFORMABLE AND REMOVABLE SHEATH FOR OPTICAL CATHETER
Tec n: :al Field
The present invention relates to a deformable and removable sheath and more particularly to a deformable and removable sheath for use with an optical catheter which can be straightened by a guide wire for insertion in the passageway leading to a body cavity of a patient and can be returned to its original shape after insertion by removal of the guide wire.
Background Art
Most optical catheters on the market today are made in a conventional manner wherein they include an elongated body or shaft containing both image fibers and light carrying fibers. The catheter may also have additional passageways for irrigation and/or for conducting operative or investigative procedures. Sometimes it also will be provided with a steering mechanism for pointing the distal end thereof. Most optical catheters are configured in a shape to do one specific examination. For example, one may be a flexible cysto-urethroscope for examination of the lower genitourinary tract. Another may be a bronchoscope for looking into the respiratory tract. Still another may be a flexible hysteroscope for looking into the uterus. Once any of these devices is manufactured, it is locked into that configuration and generally can only be used for the purpose for which it was constructed. In other words, it is not adaptable for other types of examinations. An exception to this is that in rare instances one may use a flexible hysteroscope for looking into the bladder. If this is done only because the regular
scope is broken or unavailable, or done by mistake.
There also is a device now available for looking the nasal sinuses. This is a small flexible scope which has an eyepiece, a steering mechanism for changing direction of the device to allow its manipulation into a sinus opening and a light connector. However, it cannot be used for any other purpose.
Because of the necessity for providing a variety of types and styles of catheters, the cost invested in optical catheters can be quite high, inasmuch as they are not interchangeable.
Disclosure of the Invention
A deformable sheath for an optical catheter is provided which includes an elongated, deformable hollow body having a normal predetermined shape which is compatible with its intended use in situ in a passageway in the patient. The body has a distal end and a proximate end with a plurality of channels extending therebetween. An optical catheter extends through one of the channels in the body, having a distal end aligned with the distal end of the body and a proximate end extending outwardly beyond the proximate end of the body, the catheter assuming the normal shape of the body. A substantially rigid guide wire is provided which is extendable through a second of the channels to straightened the body during insertion of the sheath into a passageway within the patient. This guide wire is removable from the body after insertion so that the body resumes its normal predetermined shape. The sheath can include a third channel for insertion of a laser fiber or laser lithotripsy or an electrohydraulic probe to fracture stones. A lock coupler is attached to the proximate end of the body for attachment to a fitting to
properly align and connect the sheath and its catheter to external instrumentation.
The guide wire can comprise a long slender body having a distal end and a proximate end receivable in the sheath body. A hand""e is attached to the proximate end of the gu a wire body to aid in inserting and withdrawing the guide wire from the sheath.
With this invention, it can be seen that deformable sheaths of the type just described can be provided each having a different natural shape depending on its intended use. The catheter, which is quite expensive, can be removed from one sheath after use for one purpose and inserted in another sheath for use for another purpose. The sheath, which is inexpensive, can be disposable to minimize the transfer of disease or infection from one patient to the next.
Additional advantages of this invention will become apparent from the description which follows, taken in conjunction with the accompanying drawings.
Brief Description of the Drawing's
Figure 1 is a perspective view showing a deformable and removable sheath and guide wire constructed in accordance with this invention for use with an optical catheter attached to a console;
Figure 2 is a perspective view of the deformable and removable sheath of Figure 1 with the guide wire in place;
Figure 3 is a perspect 2 view of the deformable and removable sheath with t e guide wire removed; Figure 4 is an enlarged vertical section, taken along line 4-4 of Figure 2, showing the interior of the guide wire with the sheath and catheter in place; and
Figure 5 is an enlarged perspective view of the proximate end of the deformable and removable sheath.
Best Mode For Carrying Out the Invention
In accordance with this invention, a sheath S is provided which may have a preformed shape as shown in Figure 1 which is compatible with the shape of the passageway of a patient in which it is to be used. This sheath S can be slid over catheter C which is removably connected to a console 10, such as the type shown in U.S. Patent No. 4,589,404. Since the catheter is flexible, it will assume the shape of sheath S when inserted therein. However, for insertion of the catheter and sheath into the passageway of the patient, a guide wire W is provided. Conveniently, the sheath S has a body 12 which has an open distal end 14 and a connector 16 at the proximate end. As best seen in Figure 5, connector 16 has a central opening 18 for receiving the catheter C and a side opening 20 for receiving guide wire W. The central opening 18 is formed in a lock coupler in the form of a female luer lock 22 to allow attachment to a fitting which has a male luer adaptor so that the catheter will be positioned in a fixed position within the sleeve. The side opening 20 can receive the body 24 of guide wire W which is inserted and withdrawn by means of handle 26 on the proximate end thereof. Once inserted the guide wire W will straighten out the sheath to the position shown in Figure 2 for easy insertion into a passageway in a patient's body. As best seen in Figure 4, catheter C is received in a channel 28 within sheath body 12. Conveniently, channel 28 can also receive devices, such as a laser fiber 30 for lithotripsy. Similarly, an irrigation passageway 32 can be provided. A fiber optic bundle 34 is also provided which may include one or more
optic fibers for transmitting light from console 10 to the distal end of the catheter C to illuminate the site under investigation. In addition, bundle 34 will contain coherent fibers to project an image to a video screen (not shown) associated with console 10. When inserted, these elements will extend through channel 28 to the distal end 14 of sheath S. Once the sheath with the catheter and guide wire have been inserted into the passageway of the patient so that the distal end 14 of the sheath is properly positioned within a body cavity for observation and/or treatment, guide wire W is withdrawn and the sheath returns to its normal position, as shown in Figures 1 and 3 which conforms to the particular passageway for which it was designed. Of course, if observation and/or treatment is desired in a different bodily passageway, then a different sheath will be used with the same catheter and guide wire in the manner just described.
It will be understood from the foregoing, that preformed sleeves can be provided which are made of any shape, any diameter and almost any length. The shape given to the sleeve is dependant upon its use. For example, one curve is imparted to the body of the sheath for viewing the inside upper pole calys of the kidney. Still another shape is given to a sleeve for use with a catheter for viewing the inside of the middle calys. Still a third shape is used for viewing the inside lower calys of the kidney.
This invention has been described in detail with reference to a particular embodiment thereof, but it will be understood that various other modifications can be effected within the spirit and scope of this invention.
Claims
1. Apparatus having a deformable and removable sheath, for use with an optical catheter wherein said sheath with a catheter therein is to be positioned in a passageway leading to a body cavity of a patient for observation and/or treatment, said apparatus comprising: an elongated, deformable, hollow body having a normal predetermined shape which is compatible with its intended use in situ, said body having a distal end, a proximate end and a plurality of channels extending from said proximate end to said distal end; an optical catheter extendable through one of said channels in said body, having a distal end aligned with said distal end of said body and a proximate end extending outwardly beyond said proximate end of said body, said catheter assuming the normal shape of said body; and a substantially rigid guide wire extendable through a second of said channels to straighten said body during insertion of said sheath in the passageway of the patient and removable from said body after insertion so that said body resumes its normal predetermined shape in the passageway.
2. Apparatus, as claimed in Claim 1, further including: a third channel for insertion of additional devices, such as a laser fiber for laser lithotripsy or an electrohydraulic probe to fracture stones; and a lock coupler attached to said proximate end of said body for attachment to a fitting to properly align and connect said sheath and its catheter and other instruments with external instrumentation.
3. Apparatus, as claimed in Claim 2, wherein said lock coupler includes: a central opening for receiving the catheter; and a side opening for receiving the guide wire.
4. Apparatus, as claimed in Claim 1, wherein: said guide wire comprises: a long, slender, substantially rigid body, having a distal end and a proximate end, receivable in said sheath body; and a handle attached to said proximate end of said guide wire body to aid in inserting and withdrawing said guide wire from said sheath.
5. Apparatus, as claimed in Claim 1, wherein: said sheath is disposable after each use.
6. A method of using an optical catheter in successive investigative and/or operative procedures, said method comprising the steps of: inserting a flexible optical catheter into an elongated sheath; inserting the sheath with the catheter in place therein into a passageway in the body of the patient; causing the sheath to assume a desired shape or orientation to properly position the catheter; conducting an investigative and/or operative procedure; removing the used sheath with the catheter in place therein from the passageway in the body of the patient; removing the catheter from the used sheath; and disposing of the used sheath.
7. A method, as claimed in Claim 6, including the further steps of: inserting the catheter in a new sheath; and repeating the steps of Claim 6.
8. A method of using an optical catheter in successive investigative and/or operative procedures, said method comprising the steps of: inserting a stiff wire into a flexible, elongated sheath, which has a predetermined curved shape which conforms to a specific passageway in the body of a patient, to straighten the sheath; inserting a flexible optical catheter into the sheath along side of the wire; inserting the sheath with the wire and catheter in place therein into a passageway in the body of a patient having the same shape as the predetermined curve of the sheath; removing the wire from the sheath so that the sheath and the catheter therein return to the predetermined shape of the sheath which now conforms with the shape of the passageway; conducting an investigative and/or operative procedure; removing the used sheath with the catheter in place therein from the passageway in the body of the patient; removing the catheter from the used sheath; and disposing of the used sheath.
9. A method, as claimed in Claim 8, including the further steps of: inserting the catheter in a new sheath; and repeating the steps of Claim 8.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58159190A | 1990-09-12 | 1990-09-12 | |
US581,591 | 1990-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992003963A1 true WO1992003963A1 (en) | 1992-03-19 |
Family
ID=24325788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1991/006107 WO1992003963A1 (en) | 1990-09-12 | 1991-08-27 | Deformable and removable sheath for optical catheter |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2050204A1 (en) |
WO (1) | WO1992003963A1 (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4223897A1 (en) * | 1992-07-21 | 1994-01-27 | Wolfgang Daum | Flexible tubes for instruments such as used in endoscopy - consists of super flexible tubes which can be inserted one inside another to penetrate otherwise inaccessible regions |
US5351678A (en) * | 1992-09-01 | 1994-10-04 | Citation Medical Corporation | Endoscope scope assembly for full hemisphere view |
US5456245A (en) * | 1993-09-20 | 1995-10-10 | Sofamor Danek Properties, Inc. | Flexible endoscope probe and method of manufacture |
WO1997037601A1 (en) * | 1996-04-04 | 1997-10-16 | Somatex Medizintechnische Instrumente Gmbh | Laser applicator set |
WO2000069500A1 (en) * | 1999-05-14 | 2000-11-23 | Boston Scientific Limited | Guide wire insertion and re-insertion tools and methods of use |
US6312404B1 (en) | 1996-09-13 | 2001-11-06 | Boston Scientific Corporation | Single operator exchange billiary catheter |
US6346093B1 (en) | 1996-09-13 | 2002-02-12 | Scimed Life Systems, Inc. | Single operator exchange biliary catheter with common distal lumen |
US6520951B1 (en) | 1996-09-13 | 2003-02-18 | Scimed Life Systems, Inc. | Rapid exchange catheter with detachable hood |
US6582401B1 (en) | 1996-09-13 | 2003-06-24 | Scimed Life Sytems, Inc. | Multi-size convertible catheter |
US6585641B1 (en) * | 2000-11-02 | 2003-07-01 | Ge Medical Systems Global Technology Company, Llc | Transesophageal probe with variable stiffness |
US6663597B1 (en) | 1996-09-13 | 2003-12-16 | Boston Scientific Corporation | Guidewire and catheter locking device and method |
US6764484B2 (en) | 2001-03-30 | 2004-07-20 | Scimed Life Systems, Inc. | C-channel to o-channel converter for a single operator exchange biliary catheter |
GB2404592A (en) * | 2003-08-05 | 2005-02-09 | Abdel Taguri | A cannula |
US7811250B1 (en) | 2000-02-04 | 2010-10-12 | Boston Scientific Scimed, Inc. | Fluid injectable single operator exchange catheters and methods of use |
US8343041B2 (en) | 2008-05-19 | 2013-01-01 | Boston Scientific Scimed, Inc. | Integrated locking device with passive sealing |
US8388521B2 (en) | 2008-05-19 | 2013-03-05 | Boston Scientific Scimed, Inc. | Integrated locking device with active sealing |
US8480629B2 (en) | 2005-01-28 | 2013-07-09 | Boston Scientific Scimed, Inc. | Universal utility board for use with medical devices and methods of use |
US8888681B2 (en) | 2007-01-03 | 2014-11-18 | Boston Scientific Scimed, Inc. | Method and apparatus for biliary access and stone retrieval |
US9352124B2 (en) | 2001-08-14 | 2016-05-31 | Boston Scientific Scimed, Inc. | Method of and apparatus for positioning and maintaining the position of endoscopic instruments |
EP2898815A4 (en) * | 2012-07-13 | 2016-08-03 | Masashi Kimura | Guide tube, guide device, and method for using guide device |
US10849771B2 (en) | 2011-06-27 | 2020-12-01 | Boston Scientific Scimed, Inc. | Stent delivery systems and methods for making and using stent delivery systems |
US11064870B2 (en) | 2017-08-11 | 2021-07-20 | Boston Scientific Limited | Biopsy cap for use with endoscope |
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1991
- 1991-08-27 WO PCT/US1991/006107 patent/WO1992003963A1/en unknown
- 1991-08-29 CA CA002050204A patent/CA2050204A1/en not_active Abandoned
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EP0132344A2 (en) * | 1983-07-20 | 1985-01-30 | Purdue Research Foundation | Improved catheter based cardiac output sensor |
US4589404A (en) * | 1984-01-03 | 1986-05-20 | Medical Dynamics, Inc. | Laser endoscope |
US4882777A (en) * | 1987-04-17 | 1989-11-21 | Narula Onkar S | Catheter |
EP0347170A1 (en) * | 1988-06-13 | 1989-12-20 | Indianapolis Center for Advanced Research Inc. | Catheter system |
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Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4223897C2 (en) * | 1992-07-21 | 1999-05-12 | Daum Gmbh | Tubular transport arm |
DE4223897A1 (en) * | 1992-07-21 | 1994-01-27 | Wolfgang Daum | Flexible tubes for instruments such as used in endoscopy - consists of super flexible tubes which can be inserted one inside another to penetrate otherwise inaccessible regions |
US5351678A (en) * | 1992-09-01 | 1994-10-04 | Citation Medical Corporation | Endoscope scope assembly for full hemisphere view |
US5456245A (en) * | 1993-09-20 | 1995-10-10 | Sofamor Danek Properties, Inc. | Flexible endoscope probe and method of manufacture |
US6283958B1 (en) | 1996-04-04 | 2001-09-04 | Somatex Medizintechnische Instrumente Gmbh | Laser applicator set |
WO1997037601A1 (en) * | 1996-04-04 | 1997-10-16 | Somatex Medizintechnische Instrumente Gmbh | Laser applicator set |
US6997908B2 (en) | 1996-09-13 | 2006-02-14 | Scimed Life Systems, Inc. | Rapid exchange catheter with detachable hood |
US6312404B1 (en) | 1996-09-13 | 2001-11-06 | Boston Scientific Corporation | Single operator exchange billiary catheter |
US6346093B1 (en) | 1996-09-13 | 2002-02-12 | Scimed Life Systems, Inc. | Single operator exchange biliary catheter with common distal lumen |
US6520951B1 (en) | 1996-09-13 | 2003-02-18 | Scimed Life Systems, Inc. | Rapid exchange catheter with detachable hood |
US6582401B1 (en) | 1996-09-13 | 2003-06-24 | Scimed Life Sytems, Inc. | Multi-size convertible catheter |
US6606515B1 (en) | 1996-09-13 | 2003-08-12 | Scimed Life Systems, Inc. | Guide wire insertion and re-insertion tools and methods of use |
US6663597B1 (en) | 1996-09-13 | 2003-12-16 | Boston Scientific Corporation | Guidewire and catheter locking device and method |
US8343105B2 (en) | 1996-09-13 | 2013-01-01 | Boston Scientific Scimed, Inc. | Multi-size convertible catheter |
US8206283B2 (en) | 1996-09-13 | 2012-06-26 | Boston Scientific Corporation | Guidewire and catheter locking device and method |
US8043208B2 (en) | 1996-09-13 | 2011-10-25 | Boston Scientific Scimed, Inc. | Guide wire insertion and re-insertion tools and methods of use |
WO2000069500A1 (en) * | 1999-05-14 | 2000-11-23 | Boston Scientific Limited | Guide wire insertion and re-insertion tools and methods of use |
US7811250B1 (en) | 2000-02-04 | 2010-10-12 | Boston Scientific Scimed, Inc. | Fluid injectable single operator exchange catheters and methods of use |
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