EP0145505A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Drainage and infusion catheters having a capillary sleeve forming a reservoir for a fluid antimicrobial agent
Assignee: Procter and Gamble Co
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Filing: 1984-12-14
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Granted: —
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Expires: 2004-12-14
Abstract
Abstract A catheter for drainage of or infusion into a body cavity. The catheter comprises an elongated tubular shaft having a proximal end provided with at least one port near the proximal end and intended to be located in the body cavity. The catheter has an open distal end for connection to a drain, suction conduit or infusion line. A sleeve is mounted about the shaft extending along a portion at least of the internal body surface contacting part thereof between its distal and proximal ends. The sleeve forms a substantially concentric fluid reservoir between the drainage tube and the sleeve. Filling means are provided at the distal end of the shaft for supplying to the reservoir a fluid antimicrobial agent capable of controlled passage through the sleeve by diffusion. The inner surface of the sleeve is provided with a plurality of longitudinally extending capillary channels or grooves providing uniform distribution of the fluid antimicrobial agent within the reservoir and throughout the length of the reservoir.
Inventors
- 👤 James Lee Drobish
- 👤 Eldon George Spletzer
- 👤 Hugh Ansley Thompson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 04:11
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/0029; A61L; A61L29/00; A61L29/14; A61L29/16; A61M25/0017; A61M27/00; A61L2300/00; A61L2300/40; A61L2300/404; A61M2025/0034; A61M25/0043; A61M2025/0056
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
190 words
A catheter for drainage of or infusion into a body cavity, said catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in said body cavity to be treated and an open distal end adapted to be connected to a drainage or infusion conduit, a sleeve extending about and longitudinally of said shaft from a point near said at least one port toward said distal end of said shaft, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at said distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, said sleeve having a proximal end sealed to said shaft, said sleeve having a distal end sealed to one of said shaft and said filling means, and distribution means for distributing said fluid antimicrobial agent within said reservoir about the periphery of said reservoir and for transporting said fluid antimicrobial agent along the length of said reservoir.
Claim 2
Dependent Claim
190 words
A catheter for drainage of or infusion into a body cavity, said catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in said body cavity to be treated and an open distal end adapted to be connected to a drainage or infusion conduit, a sleeve extending about and longitudinally of said shaft from a point near said at least one port toward said distal end of said shaft, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at said distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, said sleeve having a proximal end sealed to said shaft, said sleeve having a distal end sealed to one of said shaft and said filling means, and distribution means for distributing said fluid antimicrobial agent within said reservoir about the periphery of said reservoir and for transporting said fluid antimicrobial agent along the length of said reservoir.
Claim 3
Dependent Claim
32 words
A catheter according to Claim 1, wherein said sleeve is of such length as to extend along at least that portion of said catheter adapted to contact with said internal body surfaces.
Claim 4
Dependent Claim
31 words
A catheter according to Claim 1 or 2, wherein said sleeve is made of a material chosen from silicone polymers and copolymers, polyurethanes, ethylene vinyl acetate copolymers and butadiene styrene copolymers.
Claim 5
Dependent Claim
76 words
A catheter according to any of Claims 1 to 3, including an inflatable retention balloon on said shaft located between said at least one port of said shaft proximal end and said proximal end of said sleeve, and a fluid inlet port near said distal end of said shaft connected to said retention balloon by a lumen formed in the wall of said shaft whereby fluid can be introduced into said balloon to inflate said balloon.
Claim 6
Dependent Claim
83 words
A catheter according to any of Claims 1 to 4, wherein said distribution means comprises a plurality of capillary grooves formed in the inside surface of said sleeve, said grooves being in parallel side-by-side relationship and extending the length of said sleeve or wherein said distribution means comprises a plurality of capillary grooves formed in the exterior surface of said shaft within said reservoir, said last mentioned grooves being in parallel side-by-side relationship and extending the length of said shaft within said reservoir.
Claim 7
Dependent Claim
60 words
A catheter according to Claim 5, wherein said sleeve or shaft containing said grooves exhibits a surface contact angle with respect to said fluid antimicrobial agent which will promote distribution of said fluid antimicrobial agent along the length of said sleeve or shaft respectively and preferentially hold said fluid antimicrobial agent at the base of said grooves by capillary action.
Claim 8
Dependent Claim
31 words
A catheter according to any of Claims 1 to 6, wherein said shaft is made of a material permeable to the controlled passage of said fluid antimicrobial agent therethrough by diffusion.
Claim 9
Dependent Claim
33 words
A catheter according to any of Claims 1 to 7, having, at its distal end, an inlet port for said fluid antimicrobial agent connected directly to said reservoir at the distal end thereof.
Claim 10
Dependent Claim
43 words
A catheter according to any of Claims 1 to 7, having, at its distal end, an inlet port for said fluid antimicrobial agent connected by a lumen formed in the wall of said shaft opening into said reservoir at the proximal end thereof.
Claim 11
Dependent Claim
43 words
A catheter according to any of Claims 1 to 7, having, at its distal end, an inlet part for said fluid antimicrobial agent connected by a lumen formed in the wall of said shaft opening into said reservoir at the distal end thereof.
Claim 12
Dependent Claim
46 words
A catheter according to Claim 5, wherein said capillary grooves formed in said inside surface of said sleeve have a nominal width in the range of from 0.001 to 0.010 inch (0.025 to 0.25mm) and a depth of from 0.5 to 5 times the nominal width.
Claim 13
Dependent Claim
44 words
A catheter according to Claim 8 or 10, including a one-way valved port in the wall of said tubular shaft located at the proximal end of said reservoir and permitting the flow of said fluid antimicrobial agent from said reservoir into said tubular shaft.
Claim 14
Dependent Claim
43 words
A catheter according to Claim 9, including a one-way valved port in the wall of said tubular shaft or in said sleeve located at the distal end of said reservoir and permitting the flow of said fluid antimicrobial agent from said reservoir therethrough.
Claim 15
Dependent Claim
233 words
A urethral drainage catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in the body cavity to be drained and an open distal end adapted to be connected to a drainage conduit, a sleeve extending about and longitudinally of said shaft from a point near said at least one port toward said distal end of said shaft, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at the distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, said sleeve having a proximal end sealed to said shaft, said sleeve having a distal end sealed to one of said shaft and said filling means, distribution means within said reservoir for distributing said fluid antimicrobial agent about and along the length of said reservoir, an inflatable retention balloon on said shaft located between said at least one port of said shaft proximal end and said proximal end of said sleeve, and a fluid inlet port near said distal end of said shaft connected to said retention balloon by a lumen formed in the wall of said shaft whereby fluid can be introduced into said retention balloon to inflate said balloon.
Claim 16
Dependent Claim
233 words
A urethral drainage catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in the body cavity to be drained and an open distal end adapted to be connected to a drainage conduit, a sleeve extending about and longitudinally of said shaft from a point near said at least one port toward said distal end of said shaft, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at the distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, said sleeve having a proximal end sealed to said shaft, said sleeve having a distal end sealed to one of said shaft and said filling means, distribution means within said reservoir for distributing said fluid antimicrobial agent about and along the length of said reservoir, an inflatable retention balloon on said shaft located between said at least one port of said shaft proximal end and said proximal end of said sleeve, and a fluid inlet port near said distal end of said shaft connected to said retention balloon by a lumen formed in the wall of said shaft whereby fluid can be introduced into said retention balloon to inflate said balloon.
Claim 17
Dependent Claim
201 words
A continuous ambulatory peritoneal dialysis catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in the body cavity to be treated and an open distal end adapted to be connected to a conduit leading to a conventional bag of dialysis fluid, a pair of conventional distal and proximal anchoring cuffs on said catheter, said distal anchoring cuff being intended for surgical location just under the skin of the patient and said proximal anchoring cuff being intended for surgical location deeper in the muscle of the abdominal wall, a sleeve extending about and longitudinally of said shaft from said proximal anchoring cuff beneath said distal anchoring cuff to a position toward said distal end of said catheter, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at the distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, and distribution means within said reservoir for distributing said fluid antimicrobial agent about and along the length of said reservoir.
Claim 18
Dependent Claim
201 words
A continuous ambulatory peritoneal dialysis catheter comprising an elongated tubular shaft having a proximal end with at least one port near said proximal end to be located in the body cavity to be treated and an open distal end adapted to be connected to a conduit leading to a conventional bag of dialysis fluid, a pair of conventional distal and proximal anchoring cuffs on said catheter, said distal anchoring cuff being intended for surgical location just under the skin of the patient and said proximal anchoring cuff being intended for surgical location deeper in the muscle of the abdominal wall, a sleeve extending about and longitudinally of said shaft from said proximal anchoring cuff beneath said distal anchoring cuff to a position toward said distal end of said catheter, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at the distal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, and distribution means within said reservoir for distributing said fluid antimicrobial agent about and along the length of said reservoir.
Claim 19
Dependent Claim
49 words
A catheter according to Claim 14 or 15, wherein said distribution means comprises a plurality of capillary grooves formed in one of the inside surface of said sleeve and the exterior surface of said shaft, said grooves being in parallel side-by-side relationship and extending the length of said reservoir.
Claim 20
Dependent Claim
55 words
A catheter according to Claim 16, wherein said sleeve containing said grooves exhibits a surface contact angle with respect to said fluid antimicrobial agent which will promote distribution of said fluid antimicrobial agent along the length of said sleeve and preferentially hold said fluid antimicrobial agent at the base of said grooves by capillary action.
Claim 21
Dependent Claim
64 words
A catheter according to Claim 14 or 15, having, at its distal end, an inlet port for said fluid antimicrobial agent connected by a lumen formed in the wall of said shaft opening into said reservoir at the proximal end thereof, and including a one-way valved outlet port at the distal end of said reservoir formed in one of said shaft and said sleeve.
References Cited (Backward Citations)
No citation records indexed.
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