Patent US1486656A successfully refreshed from Google Patents.
EP0102342A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Percutaneous implant for peritoneal dialysis
Assignee: Renal Systems Inc
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Filing: 1983-08-19
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Granted: —
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Expires: 2003-08-19
Abstract
Abstract @ An implant device for peritoneal dialysis which permits a flexible catheter (20) to be removed and replaced without invasive surgery. The catheter is passed through a substantially rigid tubular percutaneous device (10) and a flexible sleeve member (12) which together form a continuous conduit from the body exterior through the peritoneal wall (16). The catheter is associated with a percutaneous tubular device so as to be removable and replaceable through the sleeve member after implantation. The catheter preferably has a relatively weak memory which gives it a tendency to maintain a compact coiled configuration near the peritoneal wall. The catheter may extend through the percutaneous device or, more preferably, terminates within the interior cavity of the percutaneous device and is sealed from the environment by means of a septum closure within the device cavity.
Inventors
- 👤 Elias Klein
- 👤 Richard A. Ward
- 👤 Ronald L. Wathen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 16:31
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61M1/00; A61M1/14; A61M1/28; A61M1/285; A61M2039/0282; A61M2039/0288
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
An improved percutaneous implant especially suitable for peritoneal dialysis applications, the implant comprising : a substantially rigid tubular percutaneous device (1 0 ) of biologically compatible material which extends through the skin (14) when implanted so as to provide means for accessing the body interior through the interior of said device, and a flexible subcutaneous catheter member (20) associated with said percutaneous tubular device for providing fluid communication between the body exterior and the peritoneal cavity , the improvement comprising : a flexible sleeve member (12) of biologically compatible material surrounding said catheter (20) for a portion of the length thereof from said percutaneous tubular device, the length of the sleeve sufficient to pass through the tissue between said percutaneous device and the peritoneal wall (16), said sleeve including a free end (13) affixable to the peritoneal wall around an opening therein so as to provide a conduit between said percutaneous tubular device and the peritonium through which said catheter is carried into the peritonium; and said catheter member associated with said percutaneous tubular device so as to be removable and replaceable through said sleeve member after implantation.
Claim 2
Dependent Claim
188 words
An improved percutaneous implant especially suitable for peritoneal dialysis applications, the implant comprising : a substantially rigid tubular percutaneous device (1 0 ) of biologically compatible material which extends through the skin (14) when implanted so as to provide means for accessing the body interior through the interior of said device, and a flexible subcutaneous catheter member (20) associated with said percutaneous tubular device for providing fluid communication between the body exterior and the peritoneal cavity , the improvement comprising : a flexible sleeve member (12) of biologically compatible material surrounding said catheter (20) for a portion of the length thereof from said percutaneous tubular device, the length of the sleeve sufficient to pass through the tissue between said percutaneous device and the peritoneal wall (16), said sleeve including a free end (13) affixable to the peritoneal wall around an opening therein so as to provide a conduit between said percutaneous tubular device and the peritonium through which said catheter is carried into the peritonium; and said catheter member associated with said percutaneous tubular device so as to be removable and replaceable through said sleeve member after implantation.
Claim 3
Dependent Claim
46 words
2 . An improved percutaneous implant as in claim 1 wherein the sleeve member (12) is made of a material sufficiently porous to permit tissue in- growth therein but insufficiently porous to permit significant leakage of peritoneal fluids through the sleeve member into the surrounding tissue.
Claim 4
Dependent Claim
18 words
A percutaneous implant as in claim 2, wherein the sleeve member (12) is made of an expanded polytetrafluoroethylene.
Claim 5
Dependent Claim
24 words
A percutaneous implant as in claims 1 or 2 wherein the catheter member (20) includes a plurality of perforations through the side walls thereof.
Claim 6
Dependent Claim
16 words
A percutaneous implant as in claim 4 wherein the distal end of the catheter is closed.
Claim 7
Dependent Claim
35 words
A percutaneous implant as in claim 4 wherein the catheter member (20) is a flexible material having a memory in a coiled- configuration on the portion of the catheter within the peritoneal cavity when implanted.
Claim 8
Dependent Claim
51 words
A percutaneous implant as in claim 1 wherein said catheter member (20) extends through said tubular percutaneous device and includes a plug member (24) surrounding a portion of the catheter passing through said percutaneous device, the plug member configured so as to sealably contact the interior surfaces of-the tubular percutaneous device.
Claim 9
Dependent Claim
54 words
A percutaneous implant as in claim 1 wherein said catheter member (20) terminates within said tubular percutaneous device and includes on the proximal end thereof a plug member conforming to the interior surfaces of said percutaneous device, and wherein said implant includes a septum closure (30) above said plug member in sealed relationship therewith.
References Cited (Backward Citations)
No citation records indexed.
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