US5645532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopaque cuff peritoneal dialysis catheter
Assignee: SIL-MED Corp
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Filing: 1996-03-04
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Granted: 1997-07-08
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Expires: 2016-03-04
Abstract
Abstract Peritoneal dialysis catheter cuffs positioned at one or both ends of the body implantation tunnel to secure the catheter in position and to seal the entrance site against infection are rendered radiopaque by a variety of means to identify the position of the cuffs during and after the catheter implantation procedure. The cuffs may alternatively be adhered to the catheter by an adhesive having a radiopaque material included as an integral constituent thereof, may be mounted coaxially with a band of radiopaque material or may be formed of a fabric having radiopaque material as an integral part thereof.
Inventors
- 👤 Donna Horgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108; A61M1/00; A61M1/14; A61M1/28; A61M1/285; A61M25/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
In a peritoneal catheter adapted for implantation in the human body having a distal end arranged to reside in the peritoneal cavity, a proximal end arranged to reside external to the body, and a subcutaneous section between said distal and proximal ends, the improvement which compises: at least one radiopaque fibrous cuff positioned at, surrounding, and attached to said subcutaneous section, said cuff adapted to integrate with body tissue to seal said catheter upon said implantation, said cuff observable by X-ray imaging techniques, said radiopaque cuff comprising an outer band of fibrous material and an inner band of radiopaque material said inner and outer bands attached by an adhesive and said inner band and said subcutaneous section attached by an adhesive.
Claim 2
Dependent Claim
121 words
In a peritoneal catheter adapted for implantation in the human body having a distal end arranged to reside in the peritoneal cavity, a proximal end arranged to reside external to the body, and a subcutaneous section between said distal and proximal ends, the improvement which compises: at least one radiopaque fibrous cuff positioned at, surrounding, and attached to said subcutaneous section, said cuff adapted to integrate with body tissue to seal said catheter upon said implantation, said cuff observable by X-ray imaging techniques, said radiopaque cuff comprising an outer band of fibrous material and an inner band of radiopaque material said inner and outer bands attached by an adhesive and said inner band and said subcutaneous section attached by an adhesive.
Claim 3
Dependent Claim
108 words
In a peritoneal catheter adaptd for implantation in the human body having a distal end arranged to reside in the peritoneal cavity, a proximal end arranged to reside external to the body, and a subcutaneous section between said distal and proximal ends, the improvement which comprises: at least one radiopaque fibrous cuff positioned at, surrounding, and attached to said subcutaneous section, said cuff adapted to integrate with body tissue to seal said catheter upon said implantation, said cuff observable by X-ray imaging techniques, said radiopaque cuff comprising a band of fibrous material attached to said subcutaneous section by an adhesive having radiopaque material as an integral constituent thereof.
Claim 4
Dependent Claim
108 words
In a peritoneal catheter adaptd for implantation in the human body having a distal end arranged to reside in the peritoneal cavity, a proximal end arranged to reside external to the body, and a subcutaneous section between said distal and proximal ends, the improvement which comprises: at least one radiopaque fibrous cuff positioned at, surrounding, and attached to said subcutaneous section, said cuff adapted to integrate with body tissue to seal said catheter upon said implantation, said cuff observable by X-ray imaging techniques, said radiopaque cuff comprising a band of fibrous material attached to said subcutaneous section by an adhesive having radiopaque material as an integral constituent thereof.
Claim 5
Dependent Claim
27 words
The apparatus of claim 2 wherein said adhesive comprises a silicon adhesive having barium sulfate in the amount of one to twenty percent by weight added thereto.
References Cited (Backward Citations)
US5047050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-07 | 2001-01-06 | 2001-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |