US3811450A - Catheters - Google Patents
Catheters Download PDFInfo
- Publication number
- US3811450A US3811450A US00300815A US30081572A US3811450A US 3811450 A US3811450 A US 3811450A US 00300815 A US00300815 A US 00300815A US 30081572 A US30081572 A US 30081572A US 3811450 A US3811450 A US 3811450A
- Authority
- US
- United States
- Prior art keywords
- tube
- urethra
- proximal end
- urethral catheter
- catheter assembly
- 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.)
- Expired - Lifetime
Links
Images
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
- A61M25/10—Balloon catheters
Definitions
- a catheter forremoving urine from the bladder comprising a polymeric tube having a drainage lumen, the tube being dimensioned so that the lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of I the urethra at least substantially free for the normal passage of urine.
- the invention relates to self-retaining catheters, especially male urethral balloon catheters, for use in prostatic conditions.
- the traditional balloon catheter is widely used in cases of prostatic urethral stricture and one well known type comprises a flexible tube which extends from outside the body along the urethra and into the bladder, the tube comprising a main lumen for the pa ssage of urine and a much smaller lumen leading to an annular expansible sac or bulb which is adjacent the inner end of the catheter and can be expanded within the bladder by pumping a fluid along the smaller lumen to prevent accidental retraction of the catheter.
- the Foley catheter Most notable of this type of catheter.
- the known type of balloon catheter while serving its purpose, suffers from a number of disadvantages.
- the catheter has an irritant effect on the walls of the urethra and may cause abscesses and fibrosis, particularly at the outer end and at bends in the urethra.
- the presence of the catheter interferes with the natural control of urination and the means at the outer end of the catheter necessary for control and disposal of urine are inconvenient.
- the invention seeks to overcome these disadvantages.
- a catheter for removing urine from the bladder comprising a polymeric tube having a drainage lumen, the tube being dimensioned so that the lumen in use, extends, from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
- the length of the tube When used as a urethral catheter the length of the tube is about three inches such that it can extend from t the bladder along the urethra at least part way through the prostate gland, but walls of the tube bounding the urine passage through the catheter, i.e., the drainage lumen stop short of the sphincter urethrae muscles.
- the patient can still make use of the sphincter urethrae muscles for urine control and there is no urine-conveying tube extending along the majority of the urethra.
- the tube may pass the sphincter urethrae muscles and well into the urethra, although a considerable length of the urethra remains unimpeded by the tube.
- the catheter will require means to ensure its retention in position and the retention means may take various forms.
- the catheter In a first form, the catheter is intended to remain in position for extended periods and consists of a short length of tube which is preferably relatively stiff and may be made of polymeric material.
- the tube has a window adjacent the orifice of the prastatic otricle and may have other windows, the tube being retained in position by the protrusion of tissue through the window or windows.
- a second form which is more suitable for shorter periods.
- the retention means is similar to that of the known balloon catheter and includes an expansible sac, preferably annular although other shapes are possible, adjacent the inner end of the catheter in communication with a passage long enough to extend the full length of the urethra so that the sac may be expanded within the bladder by pumping from the exterior.
- a part of the pumping pas sage which is coextensive with the urine passage may be formed integrally with it but the remainder may be formed from a fine bore tube which has external dimensions substantially smaller than the traditional balloon catheter.
- a fine bore tube still passes along theentire length of the urethra to the outside, it is very much smaller than that of the known catheter and does not carry urine.
- This fine bore tube may also be used for withdrawal of the catheter, the outer end of the tube forming the urine passage preferably being tapered or inclined to facilitate passage along the urethra during withdrawal.
- a probe such as a flexible rod or tube which is formed at one end for a releasable connection with the outer end of the catheter.
- This connection may be in the form of a spigot and socket joint.
- the rod or ,tube may be shaped to receive the pumping tube (where this is provided) and may have a longitudinal groove in the outer surface for this purpose.
- FIG. 1 is a schematic elevation, partly in section,
- FIG. 2 is a section on the line II-II of FIG. 1,
- FIG. 3 is a section on the line Ill-III of FIG. 1,
- FIG. 4 is a section on the line IVIV of FIG. 1, and
- FIG. 5 is a section on the line V-V of FIG. 1.
- a catheter includes a tube 1 of polymeric material, for example rubber latex or a vinyl polymer, which has a conventional domed closed end 2 and a pair of diametrically opposed openings 3 for admitting urine to a drainage lumen la of the tube.
- a thin-walled sac 4 which can be expanded to form a traditional balloon-like, collar by pumping liquid such as water through a fine-bore lumen or passage 5 in the tube wall.
- the catheter is similar to a Foley catheter.
- the tube 1 terminates in an inclined end face'6 and is of a length (about three inches) such that when the collar formed by the sac 4 is within the bladder, the end face 6 will be situated adja'cent to but slightly on the bladder side of the sphincter urethrae muscles.
- the tube thus passes through at least the greater part of the prostate gland.
- the pumping passage or lumen 5 communicates with the passage or lumen of a fine flexible tube 7 which is ofa length to extend along the full length of the urethra and a convenient distance beyond.
- the catheter may be inserted into the urethra with the assistance of an inserter which consists of a length in the end of the tube 8.
- the wall of the tube 8 terminates in a sloping shoulder which abuts the endface 6 at the end of the tube 1.
- one side of the outside surface of the tube 8 is formed with a longitudinal groove 10 which is dimensioned to receive within it the fine tube 7.
- the catheter shown in the drawing is used as follows. It will normally be supplied with the inserter tube 8 attached to the tube 1 and with the fine tube 7 lying in the groove 10 if such a groove is in fact provided, and in this condition the catheter may be inserted in the same way as a Foley catheter.
- the sac 4 When the sac 4 has reached the bladder it is expanded by pumping a liquid along the fine tube 7 and the passage as by attaching a syringe to the free end of the tube 7. The expansion of the sac 4 secures the tube 1 in position.
- the inserter tube 8 is then given a gentle tug to disengage the spigot 9 from the end of the tube 1 and the inserter tube 8 is completely withdrawn.
- the invention provides a catheter for assisting in the passage of a fluid past an unnatural blockage or constriction in a body passage, said catheter comprising a polymeric tube dimensioned so that, in use, it is located only in that part of the passage that is blocked or constricted, thereby leaving a substantial remaining part of the passage free to allow said fluid to pass along the passage.
- a urethral catheter assembly comprising a polymeric tube having a drainage lumen and proximal and distal ends, and a flexible elongated member connected to said tube as an extension thereof for inserting the tube into the urethra, said member having means on the end thereof connected to said tube formed for releasing the member from the proximal end of the tube after the tube has been positioned, expansion means on said distal end for retaining the tube in position, and means other than said member for removing the tube from the urethra so that the drainage lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
- urethral catheter assembly of claim 1 in which the tube is so dimensioned that the proximal end thereof is in use situated adjacent but slightly on the bladder side of the sphincter urethra muscles.
- the urethral catheter assembly of claim 1 in which the tube is approximately 3 inches long and about one quarter of an inch in external diameter.
- said expansion means for retaining a tube'in position includes aninflatable sac surrounding the tube, the interior of the sac being in communication with an inflation lumen along which fluid can be passed for inflating the sac, and in which a fine bore tube extends from said inflation lumen and,,in use, extends along the remaining part of the urethra to a convenient distance beyond and serves as said means for removing the tube from the urethra.
- a surgical assembly comprising a two piece urethral catheter including a tube and tube inserting means separate from said tube; said tube having a drainage lumen, inlet opening means in said tube at one end thereof in communication with said drainage lumen,said tube also having a proximal end remote from said one end, retaining means carried by said tube adjacent said inlet opening means on said proximal end side thereof for normally retaining said tube against withdrawal, means connected to said tube and extending beyond said proximal end for rendering said retaining means inoperative and for withdrawing said tube from said urethra; and said tube inserting means being in the form of an elongated flexible member having connecting means at one end thereof for releaseable positive inkterlocking engagement with said tube at said proximal end during the insertion of said tube and for automatic separation of said flexible member from said tube when said flexible member is withdrawn, and said tube being of a length'to terminate within an urethra in an unaccessible position.
Abstract
A catheter for removing urine from the bladder comprising a polymeric tube having a drainage lumen, the tube being dimensioned so that the lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
Description
United States Patent [191 Lord [111 3,811,450 [45] May 21, 1974 CATHETERS Inventor: Peter Herent Lord, Mayfield, 38
Burkes Rd., Beaconsfield, Buckinghamshire, England Filed: Oct. 25, 1972 Appl. No.: 300,815
Foreign Application Priority Data Oct. 25, 1971 Great Britain 49473/71 U.S. Cl. 128/349 R, 128/349 B Int. Cl A6lm 25/00 Field of Search 128/348, 349 R, 349 B,
128/349 BV, 350 R, 351, 246, 325
References Cited UNITED STATES PATENTS 7/1967 Rocchi et al. 128/349 B 3,503,400 3/1970 Osthagen et a1. 128/349 R 3,630,206 12/1971 'Gingold 128/349 B Primary Examiner-Dalton L. Truluck Attorney, Agent, or Firm-Baldwin, Wight & Brown ABSTRACT A catheter forremoving urine from the bladder comprising a polymeric tube having a drainage lumen, the tube being dimensioned so that the lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of I the urethra at least substantially free for the normal passage of urine.
10 Claims, 5 Drawing Figures 1 CATHETERS This invention relates to catheters.
In particular the invention relates to self-retaining catheters, especially male urethral balloon catheters, for use in prostatic conditions.
At present, the traditional balloon catheter is widely used in cases of prostatic urethral stricture and one well known type comprises a flexible tube which extends from outside the body along the urethra and into the bladder, the tube comprising a main lumen for the pa ssage of urine and a much smaller lumen leading to an annular expansible sac or bulb which is adjacent the inner end of the catheter and can be expanded within the bladder by pumping a fluid along the smaller lumen to prevent accidental retraction of the catheter. Most notable of this type of catheter is the Foley catheter.
The known type of balloon catheter, while serving its purpose, suffers from a number of disadvantages. The urethra and the washing action of urine passing therethrough functions to prevent the passage of infection up the urethra and the known balloon catheters tend to interfere with this function. On occasions, the catheter has an irritant effect on the walls of the urethra and may cause abscesses and fibrosis, particularly at the outer end and at bends in the urethra. Moreover, the presence of the catheter interferes with the natural control of urination and the means at the outer end of the catheter necessary for control and disposal of urine are inconvenient.
The invention seeks to overcome these disadvantages.
According to the present invention there is provided a catheter for removing urine from the bladder comprising a polymeric tube having a drainage lumen, the tube being dimensioned so that the lumen in use, extends, from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
When used as a urethral catheter the length of the tube is about three inches such that it can extend from t the bladder along the urethra at least part way through the prostate gland, but walls of the tube bounding the urine passage through the catheter, i.e., the drainage lumen stop short of the sphincter urethrae muscles. When such a short catheter is used, the patient can still make use of the sphincter urethrae muscles for urine control and there is no urine-conveying tube extending along the majority of the urethra. In the case of certain patients, however, the tube may pass the sphincter urethrae muscles and well into the urethra, although a considerable length of the urethra remains unimpeded by the tube.
In most instances the catheter will require means to ensure its retention in position and the retention means may take various forms. In a first form, the catheter is intended to remain in position for extended periods and consists of a short length of tube which is preferably relatively stiff and may be made of polymeric material. The tube has a window adjacent the orifice of the prastatic otricle and may have other windows, the tube being retained in position by the protrusion of tissue through the window or windows. In a second form, which is more suitable for shorter periods. the retention means is similar to that of the known balloon catheter and includes an expansible sac, preferably annular although other shapes are possible, adjacent the inner end of the catheter in communication with a passage long enough to extend the full length of the urethra so that the sac may be expanded within the bladder by pumping from the exterior. A part of the pumping pas sage which is coextensive with the urine passage may be formed integrally with it but the remainder may be formed from a fine bore tube which has external dimensions substantially smaller than the traditional balloon catheter. Thus, although in the preferred embodiment a fine bore tube still passes along theentire length of the urethra to the outside, it is very much smaller than that of the known catheter and does not carry urine. This fine bore tube may also be used for withdrawal of the catheter, the outer end of the tube forming the urine passage preferably being tapered or inclined to facilitate passage along the urethra during withdrawal.
For insertion, there may be provided a probe such as a flexible rod or tube which is formed at one end for a releasable connection with the outer end of the catheter. This connection may be in the form of a spigot and socket joint. The rod or ,tube may be shaped to receive the pumping tube (where this is provided) and may have a longitudinal groove in the outer surface for this purpose.
A preferred example of the invention is now described with with reference to the accompanying drawing, in which:
FIG. 1 is a schematic elevation, partly in section,
FIG. 2 is a section on the line II-II of FIG. 1,
FIG. 3 is a section on the line Ill-III of FIG. 1,
FIG. 4 is a section on the line IVIV of FIG. 1, and
FIG. 5 is a section on the line V-V of FIG. 1.
Referring to the drawings, a catheter includes a tube 1 of polymeric material, for example rubber latex or a vinyl polymer, which has a conventional domed closed end 2 and a pair of diametrically opposed openings 3 for admitting urine to a drainage lumen la of the tube. Just behind the openings 3 the tube is surrounded by a thin-walled sac 4 which can be expanded to form a traditional balloon-like, collar by pumping liquid such as water through a fine-bore lumen or passage 5 in the tube wall. As so far described, the catheter is similar to a Foley catheter. However, the tube 1 terminates in an inclined end face'6 and is of a length (about three inches) such that when the collar formed by the sac 4 is within the bladder, the end face 6 will be situated adja'cent to but slightly on the bladder side of the sphincter urethrae muscles. The tube thus passes through at least the greater part of the prostate gland. Beyond the end face 6, the pumping passage or lumen 5 communicates with the passage or lumen of a fine flexible tube 7 which is ofa length to extend along the full length of the urethra and a convenient distance beyond.
The catheter may be inserted into the urethra with the assistance of an inserter which consists of a length in the end of the tube 8. The wall of the tube 8 terminates in a sloping shoulder which abuts the endface 6 at the end of the tube 1. Preferably, and as shown, one side of the outside surface of the tube 8 is formed with a longitudinal groove 10 which is dimensioned to receive within it the fine tube 7.
The catheter shown in the drawing is used as follows. It will normally be supplied with the inserter tube 8 attached to the tube 1 and with the fine tube 7 lying in the groove 10 if such a groove is in fact provided, and in this condition the catheter may be inserted in the same way as a Foley catheter. When the sac 4 has reached the bladder it is expanded by pumping a liquid along the fine tube 7 and the passage as by attaching a syringe to the free end of the tube 7. The expansion of the sac 4 secures the tube 1 in position. The inserter tube 8 is then given a gentle tug to disengage the spigot 9 from the end of the tube 1 and the inserter tube 8 is completely withdrawn. This leaves the tube 1 in the way of the prostate gland with the end face 6 above the sphincter urethrae muscles which may be used by the patient in the usual way. The fine tube 7 remains along the urethra but it is of very small cross-sectional dimension and is thus unlikely to lead to the drawbacks caused by prior art catheters. When the catheter is to be removed. the sac 4 is drained of liquid through the tube 7 and is then pulled out by means of the tube 7.
The above description has been concerned with a urethral catheter. It is envisaged, however, that the invention could be incorporated in other types of catheter. Hence, in its broadest sense, the invention provides a catheter for assisting in the passage of a fluid past an unnatural blockage or constriction in a body passage, said catheter comprising a polymeric tube dimensioned so that, in use, it is located only in that part of the passage that is blocked or constricted, thereby leaving a substantial remaining part of the passage free to allow said fluid to pass along the passage.
What I claim is:
l. A urethral catheter assembly comprising a polymeric tube having a drainage lumen and proximal and distal ends, and a flexible elongated member connected to said tube as an extension thereof for inserting the tube into the urethra, said member having means on the end thereof connected to said tube formed for releasing the member from the proximal end of the tube after the tube has been positioned, expansion means on said distal end for retaining the tube in position, and means other than said member for removing the tube from the urethra so that the drainage lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
2. The urethral catheter assembly of claim 1 in which the tube is so dimensioned that the proximal end thereof is in use situated adjacent but slightly on the bladder side of the sphincter urethra muscles.
3. The urethral catheter assembly of claim 1 in which the tube is approximately 3 inches long and about one quarter of an inch in external diameter.
4. The urethral catheter assembly of claim 1 in which said expansion means for retaining a tube'in position includes aninflatable sac surrounding the tube, the interior of the sac being in communication with an inflation lumen along which fluid can be passed for inflating the sac, and in which a fine bore tube extends from said inflation lumen and,,in use, extends along the remaining part of the urethra to a convenient distance beyond and serves as said means for removing the tube from the urethra.
5. The urethral catheter assembly of claim 4 in which said member for inserting the tube into the urethra has a longitudinal groove formed in its outer peripheral surface for receiving said fine bore tube.
6. The urethral catheter assembly of claim 1 in which said formed end of the flexible member is in the form of a spigot adapted to slip it into the proximal end of the tube. v
7. The urethral catheter assembly of claim 1 in which an end face of the proximal end of the tube is inclined at an acute angle to the longitudinal axis of the tube so that the tube can be easily withdrawn. I
8. The urethral catheter assembly of claim 1 in which said member for inserting the tube into the urethra is a tubular member.
9. A surgical assembly comprising a two piece urethral catheter including a tube and tube inserting means separate from said tube; said tube having a drainage lumen, inlet opening means in said tube at one end thereof in communication with said drainage lumen,said tube also having a proximal end remote from said one end, retaining means carried by said tube adjacent said inlet opening means on said proximal end side thereof for normally retaining said tube against withdrawal, means connected to said tube and extending beyond said proximal end for rendering said retaining means inoperative and for withdrawing said tube from said urethra; and said tube inserting means being in the form of an elongated flexible member having connecting means at one end thereof for releaseable positive inkterlocking engagement with said tube at said proximal end during the insertion of said tube and for automatic separation of said flexible member from said tube when said flexible member is withdrawn, and said tube being of a length'to terminate within an urethra in an unaccessible position.
10. The catheter of claim 9 wherein said flexible member is hollow and in communication with said drainge lumen to provide an initial visual indication when said tube is in place.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3:81l'45O D t d May 21, 1974 Inventor) Peter Herent Lord It is certified'that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
In the patent heading, insert:
'-Assignee: Allied Medical Polymers Limited-.
Signed and sealed this 29th day of October 197A.
(SEAL) Attest:
McCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents FORM PC4050 (w'ss) uscoMM-oc 60376-P69 fi' U45. GOVERNMENT PRINTING OFFICE I969 O-JGO-SSI.
Claims (10)
1. A urethral catheter assembly comprising a polymeric tube having a drainage lumen and proximal and distal ends, and a flexible elongated member connected to said tube as an extension thereof for inserting the tube into the urethra, said member having means on the end thereof connected to said tube formed for releasing the member from the proximal end of the tube after the tube has been positioned, expansion means on said distal end for retaining the tube in position, and means other than said member for removing the tube from the urethra so that the drainage lumen, in use, extends from the bladder only part way along the urethra, thereby leaving a substantial remaining part of the urethra at least substantially free for the normal passage of urine.
2. The urethral catheter assembly of claim 1 in which the tube is so dimensioned that the proximal end thereof is in use situated adjacent but slightly on the bladder side of the sphincter urethra muscles.
3. The urethral catheter assembly of claim 1 in which the tube is approximately 3 inches long and about one quarter of an inch in external diameter.
4. The urethral catheter assembly of claim 1 in which said expansion means for retaining a tube in position includes an inflatable sac surrounding the tube, the interior of the sac being in communication with an inflation lumen along which fluid can be passed for inflating the sac, and in which a fine bore tube extends from said inflation lumen and, in use, extends along the remaining part of the urethra to a convenient distance beyond and serves as said means for removing the tube from the urethra.
5. The urethral catheter assembly of claim 4 in which said member for inserting the tube into the urethra has a longitudinal groove formed in its outer peripheral surface for receiving said fine bore tube.
6. The urethral catheter assembly of claim 1 in which said formed end of the flexible member is in the form of a spigot adapted to slip it into the proximal end of the tube.
7. The urethral catheter assembly of claim 1 in which an end face of the proximal end of the tube is inclined at an acute angle to the longitudinal axis of the tube so that the tube can be easily withdrawn.
8. The urethral catheter assembly of claim 1 in which saId member for inserting the tube into the urethra is a tubular member.
9. A surgical assembly comprising a two piece urethral catheter including a tube and tube inserting means separate from said tube; said tube having a drainage lumen, inlet opening means in said tube at one end thereof in communication with said drainage lumen, said tube also having a proximal end remote from said one end, retaining means carried by said tube adjacent said inlet opening means on said proximal end side thereof for normally retaining said tube against withdrawal, means connected to said tube and extending beyond said proximal end for rendering said retaining means inoperative and for withdrawing said tube from said urethra; and said tube inserting means being in the form of an elongated flexible member having connecting means at one end thereof for releaseable positive inkterlocking engagement with said tube at said proximal end during the insertion of said tube and for automatic separation of said flexible member from said tube when said flexible member is withdrawn, and said tube being of a length to terminate within an urethra in an unaccessible position.
10. The catheter of claim 9 wherein said flexible member is hollow and in communication with said drainge lumen to provide an initial visual indication when said tube is in place.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4947371A GB1379563A (en) | 1971-10-25 | 1971-10-25 | Catheters |
Publications (1)
Publication Number | Publication Date |
---|---|
US3811450A true US3811450A (en) | 1974-05-21 |
Family
ID=10452466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00300815A Expired - Lifetime US3811450A (en) | 1971-10-25 | 1972-10-25 | Catheters |
Country Status (4)
Country | Link |
---|---|
US (1) | US3811450A (en) |
DE (1) | DE2252399A1 (en) |
FR (1) | FR2158275B1 (en) |
GB (1) | GB1379563A (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937224A (en) * | 1974-04-11 | 1976-02-10 | Uecker Ronald L | Colostomy catheter |
FR2390176A1 (en) * | 1977-05-13 | 1978-12-08 | Lauterjung Friedrich | ENTERAL FEEDING PROBE |
US4154243A (en) * | 1976-08-05 | 1979-05-15 | The Kendall Company | Catheter with improved balloon assembly |
US4207900A (en) * | 1978-07-03 | 1980-06-17 | The Kendall Company | Insert molded catheter and method |
US4350161A (en) * | 1980-05-09 | 1982-09-21 | Davis Jr Richard C | Indwelling urethral catheter and method |
US4432757A (en) * | 1980-05-09 | 1984-02-21 | Davis Jr Richard C | Indwelling urethral catheter |
US4538621A (en) * | 1983-01-25 | 1985-09-03 | Urotek Inc. | Urodynamic catheter |
US4698056A (en) * | 1986-03-21 | 1987-10-06 | Medi-Tech, Inc. | Enteric feeding device |
US4865030A (en) * | 1987-01-21 | 1989-09-12 | American Medical Systems, Inc. | Apparatus for removal of objects from body passages |
US4909785A (en) * | 1986-03-25 | 1990-03-20 | American Medical Systems, Inc. | Method for valving body fluids |
US4946449A (en) * | 1986-12-18 | 1990-08-07 | Davis Jr Richard C | Indwelling urethral catheter system and method |
US5527281A (en) * | 1995-07-27 | 1996-06-18 | Haas; Joseph A. | Substitute tip for urethral catheter |
US5562622A (en) * | 1995-03-20 | 1996-10-08 | Contimed, Inc. | Self-cleansing bladder drainage device |
US5738654A (en) * | 1995-03-20 | 1998-04-14 | Contimed, Inc. | Self cleansing bladder drainage device |
US5792042A (en) * | 1996-08-08 | 1998-08-11 | Cohen; Kenneth L. | Apparatus for treating incontinence in females |
US5795288A (en) * | 1996-08-08 | 1998-08-18 | Cohen; Kenneth L. | Apparatus with valve for treating incontinence |
US5916195A (en) * | 1998-02-04 | 1999-06-29 | Argomed Ltd. | Internal catheter |
WO2002002032A2 (en) | 2000-06-30 | 2002-01-10 | Argomed, Ltd. | Prostatic stent with localized tissue engaging anchoring means |
USRE37704E1 (en) | 1990-03-22 | 2002-05-14 | Argomed Ltd. | Thermal treatment apparatus |
US6682555B2 (en) | 2000-11-13 | 2004-01-27 | Wit Ip Corporation | Methods for treating the prostate and inhibiting obstruction of the prostatic urethra using biodegradable stents |
US6685745B2 (en) | 2001-05-15 | 2004-02-03 | Scimed Life Systems, Inc. | Delivering an agent to a patient's body |
US6743198B1 (en) | 1995-03-20 | 2004-06-01 | Conticare Medical, Inc. | Self-cleansing bladder drainage device |
US6849063B1 (en) | 1994-03-11 | 2005-02-01 | Wit Ip Corporation | Thermal treatment apparatus |
US20050059929A1 (en) * | 2003-09-17 | 2005-03-17 | Magnus Bolmsjo | Partial-length, indwelling prostatic catheter using coiled inflation tube as an anchor and methods of draining urine and flushing clots |
US6893430B2 (en) | 1998-02-04 | 2005-05-17 | Wit Ip Corporation | Urethral catheter and guide |
US20060111691A1 (en) * | 2003-09-17 | 2006-05-25 | Magnus Bolmsjo | Partial-length indwelling urinary catheter and method permitting selective urine discharge |
US20060129136A1 (en) * | 2004-12-09 | 2006-06-15 | Meacham George B K | Catheter |
US20080172040A1 (en) * | 2006-10-27 | 2008-07-17 | David Smith | Self-Cleansing Bladder Drainage Catheter |
US20120203210A1 (en) * | 2011-02-07 | 2012-08-09 | Schanz Richard W | Urinary catheter and method |
US20140249514A1 (en) * | 2013-03-01 | 2014-09-04 | Henry Allison BARNETT | Non-Bladder Invasive Urethral Catheter System |
US9199060B1 (en) * | 2013-06-25 | 2015-12-01 | Henry Allison BARNETT | Non-bladder invasive urethral catheter system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331371A (en) * | 1965-03-09 | 1967-07-18 | Prosit Service Corp | Catheter having internal flow valve at distal end thereof |
US3503400A (en) * | 1967-07-12 | 1970-03-31 | Sven M Osthagen | Urethral valve |
US3630206A (en) * | 1970-01-02 | 1971-12-28 | Bruce Gingold | Bladder catheter |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US331371A (en) * | 1885-12-01 | Combination-tool |
-
1971
- 1971-10-25 GB GB4947371A patent/GB1379563A/en not_active Expired
-
1972
- 1972-10-25 US US00300815A patent/US3811450A/en not_active Expired - Lifetime
- 1972-10-25 FR FR7237877A patent/FR2158275B1/fr not_active Expired
- 1972-10-25 DE DE2252399A patent/DE2252399A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331371A (en) * | 1965-03-09 | 1967-07-18 | Prosit Service Corp | Catheter having internal flow valve at distal end thereof |
US3503400A (en) * | 1967-07-12 | 1970-03-31 | Sven M Osthagen | Urethral valve |
US3630206A (en) * | 1970-01-02 | 1971-12-28 | Bruce Gingold | Bladder catheter |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937224A (en) * | 1974-04-11 | 1976-02-10 | Uecker Ronald L | Colostomy catheter |
US4154243A (en) * | 1976-08-05 | 1979-05-15 | The Kendall Company | Catheter with improved balloon assembly |
FR2390176A1 (en) * | 1977-05-13 | 1978-12-08 | Lauterjung Friedrich | ENTERAL FEEDING PROBE |
US4236521A (en) * | 1977-05-13 | 1980-12-02 | Lauterjung F G | Probe |
USRE31800E (en) * | 1977-05-13 | 1985-01-15 | Probe | |
US4207900A (en) * | 1978-07-03 | 1980-06-17 | The Kendall Company | Insert molded catheter and method |
US4350161A (en) * | 1980-05-09 | 1982-09-21 | Davis Jr Richard C | Indwelling urethral catheter and method |
US4432757A (en) * | 1980-05-09 | 1984-02-21 | Davis Jr Richard C | Indwelling urethral catheter |
US4538621A (en) * | 1983-01-25 | 1985-09-03 | Urotek Inc. | Urodynamic catheter |
US4698056A (en) * | 1986-03-21 | 1987-10-06 | Medi-Tech, Inc. | Enteric feeding device |
US4909785A (en) * | 1986-03-25 | 1990-03-20 | American Medical Systems, Inc. | Method for valving body fluids |
US4946449A (en) * | 1986-12-18 | 1990-08-07 | Davis Jr Richard C | Indwelling urethral catheter system and method |
US4865030A (en) * | 1987-01-21 | 1989-09-12 | American Medical Systems, Inc. | Apparatus for removal of objects from body passages |
USRE37704E1 (en) | 1990-03-22 | 2002-05-14 | Argomed Ltd. | Thermal treatment apparatus |
US6849063B1 (en) | 1994-03-11 | 2005-02-01 | Wit Ip Corporation | Thermal treatment apparatus |
US5562622A (en) * | 1995-03-20 | 1996-10-08 | Contimed, Inc. | Self-cleansing bladder drainage device |
US5738654A (en) * | 1995-03-20 | 1998-04-14 | Contimed, Inc. | Self cleansing bladder drainage device |
US6743198B1 (en) | 1995-03-20 | 2004-06-01 | Conticare Medical, Inc. | Self-cleansing bladder drainage device |
US5527281A (en) * | 1995-07-27 | 1996-06-18 | Haas; Joseph A. | Substitute tip for urethral catheter |
US5792042A (en) * | 1996-08-08 | 1998-08-11 | Cohen; Kenneth L. | Apparatus for treating incontinence in females |
US5795288A (en) * | 1996-08-08 | 1998-08-18 | Cohen; Kenneth L. | Apparatus with valve for treating incontinence |
US5916195A (en) * | 1998-02-04 | 1999-06-29 | Argomed Ltd. | Internal catheter |
US20050165383A1 (en) * | 1998-02-04 | 2005-07-28 | Uzi Eshel | Urethral catheter and guide |
US6893430B2 (en) | 1998-02-04 | 2005-05-17 | Wit Ip Corporation | Urethral catheter and guide |
US6716252B2 (en) | 2000-06-30 | 2004-04-06 | Wit Ip Corporation | Prostatic stent with localized tissue engaging anchoring means and methods for inhibiting obstruction of the prostatic urethra |
WO2002002032A2 (en) | 2000-06-30 | 2002-01-10 | Argomed, Ltd. | Prostatic stent with localized tissue engaging anchoring means |
US6682555B2 (en) | 2000-11-13 | 2004-01-27 | Wit Ip Corporation | Methods for treating the prostate and inhibiting obstruction of the prostatic urethra using biodegradable stents |
US6685745B2 (en) | 2001-05-15 | 2004-02-03 | Scimed Life Systems, Inc. | Delivering an agent to a patient's body |
US20040127996A1 (en) * | 2001-05-15 | 2004-07-01 | Reever Kenneth P. | Delivering an agent to a patient's body |
US8034119B2 (en) | 2001-05-15 | 2011-10-11 | Boston Scientific Scimed, Inc. | Delivering an agent to a patient's body |
US7485151B2 (en) | 2001-05-15 | 2009-02-03 | Boston Scientific Scimed, Inc. | Delivering an agent to a patient's body |
US20090164025A1 (en) * | 2001-05-15 | 2009-06-25 | Boston Scientific Scimed, Inc. | Delivering an agent to a patient's body |
US7766899B2 (en) | 2003-09-17 | 2010-08-03 | Prostalund Operations Ab | Partial-length, indwelling prostatic catheter using coiled inflation tube as an anchor and methods of draining urine and flushing clots |
US20050059929A1 (en) * | 2003-09-17 | 2005-03-17 | Magnus Bolmsjo | Partial-length, indwelling prostatic catheter using coiled inflation tube as an anchor and methods of draining urine and flushing clots |
US20060111691A1 (en) * | 2003-09-17 | 2006-05-25 | Magnus Bolmsjo | Partial-length indwelling urinary catheter and method permitting selective urine discharge |
US20050080399A1 (en) * | 2003-09-17 | 2005-04-14 | Magnus Bolmsjo | Urinary catheter and method with increased resistance to obstructions |
US7662145B2 (en) | 2003-09-17 | 2010-02-16 | Prostalund Operations Ab | Partial-length indwelling urinary catheter and method permitting selective urine discharge |
US20060129136A1 (en) * | 2004-12-09 | 2006-06-15 | Meacham George B K | Catheter |
US20080172040A1 (en) * | 2006-10-27 | 2008-07-17 | David Smith | Self-Cleansing Bladder Drainage Catheter |
US8287519B2 (en) | 2006-10-27 | 2012-10-16 | Smith Tech Innovations, Llc | Self-cleansing bladder drainage catheter |
US20120203210A1 (en) * | 2011-02-07 | 2012-08-09 | Schanz Richard W | Urinary catheter and method |
US20140249514A1 (en) * | 2013-03-01 | 2014-09-04 | Henry Allison BARNETT | Non-Bladder Invasive Urethral Catheter System |
US8827985B1 (en) * | 2013-03-01 | 2014-09-09 | Henry Allison BARNETT | Non-bladder invasive urethral catheter system |
US9199060B1 (en) * | 2013-06-25 | 2015-12-01 | Henry Allison BARNETT | Non-bladder invasive urethral catheter system |
Also Published As
Publication number | Publication date |
---|---|
DE2252399A1 (en) | 1973-05-03 |
FR2158275B1 (en) | 1978-03-03 |
FR2158275A1 (en) | 1973-06-15 |
GB1379563A (en) | 1975-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3811450A (en) | Catheters | |
US5007898A (en) | Balloon dilatation catheter | |
US4995868A (en) | Catheter | |
US3630206A (en) | Bladder catheter | |
US4211233A (en) | Urethral catheter | |
US4106509A (en) | Catheters | |
US3331371A (en) | Catheter having internal flow valve at distal end thereof | |
US4850969A (en) | Retroperfusion catheter and tip construction for use therewith | |
US4932958A (en) | Prostate balloon dilator | |
US5836951A (en) | Balloon dilation catheter | |
US5876417A (en) | Detachable catheter apparatus | |
US3726283A (en) | Body-retained catheter | |
US4652258A (en) | Catheter with expansible connector and method | |
US3344791A (en) | Bulbous urinary catheter with axial extension means | |
US6283940B1 (en) | Catheter | |
EP0417189B1 (en) | Balloon dilation catheter | |
US3811448A (en) | Urinary drainage catheter | |
US5312430A (en) | Balloon dilation catheter | |
US3547126A (en) | Catheter | |
US5263931A (en) | Balloon catheter for dilating a prostatic urethra | |
US3736939A (en) | Balloon catheter with soluble tip | |
US3640281A (en) | Method of inserting a suprapubic catheter | |
US3825013A (en) | Balloon catheter | |
US3985139A (en) | Combination balloon catheter and emergency means for deflating the balloon | |
US3954110A (en) | Retention catheter with bilobate balloon |