Patent US4417888A successfully refreshed from Google Patents.
US4417888A
Expired / Lapsed
US
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Percutaneous implant
Assignee: Minntech Corp
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Filing: 1982-03-15
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Granted: 1983-11-29
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Expires: 2002-03-15
Abstract
Abstract An implantable device for providing communication between interior structures of the body and the exterior of the body, the device comprising a rigid tubular member of biologically compatible material including a transcutaneous stem portion defining a stem cavity therein and a plurality of subcutaneous arm portions in fluid communication with the stem portion. A septum closure in the stem cavity provides an interruptable seal between the stem cavity and each of the arms, permitting the arms to be separately accessed by a cannulae or needle.
Inventors
- 👤 Louis C. Cosentino
- 👤 Felix J. Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61M25/00; A61M25/01; A61M25/02; A61M2025/0293; A61M2039/0258; A61M2039/0264; A61M2039/027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
A percutaneous device for providing communication between the body exterior and the body interior, the device comprising: a rigid tubular body of biologically compatible material, said body including a transcutaneous stem portion defining a stem cavity therein and a plurality of subcutaneous arm portions joined to and in fluid communication with said stem cavity, said stem having a substantially constant outer diameter along its subcutaneous portion and to at least the excutaneous portion of the stem, an elastomeric septum within said stem cavity, and means within said stem cavity for holding said septum member in a fixed relationship to said arms so as to provide a separate interruptable seal between each of said arms and said stem cavity, and said device including a porous tissue ingrowth media on at least a part of the exterior subcutaneous surfaces of the device and wherein said ingrowth media is limited to said subcutaneous surfaces.
Claim 2
Dependent Claim
151 words
A percutaneous device for providing communication between the body exterior and the body interior, the device comprising: a rigid tubular body of biologically compatible material, said body including a transcutaneous stem portion defining a stem cavity therein and a plurality of subcutaneous arm portions joined to and in fluid communication with said stem cavity, said stem having a substantially constant outer diameter along its subcutaneous portion and to at least the excutaneous portion of the stem, an elastomeric septum within said stem cavity, and means within said stem cavity for holding said septum member in a fixed relationship to said arms so as to provide a separate interruptable seal between each of said arms and said stem cavity, and said device including a porous tissue ingrowth media on at least a part of the exterior subcutaneous surfaces of the device and wherein said ingrowth media is limited to said subcutaneous surfaces.
Claim 3
Dependent Claim
13 words
A device as in claim 1 wherein the biologically compatible material is titanium.
Claim 4
Dependent Claim
16 words
A device as in claim 2 wherein the titanium surfaces are coated with vapor deposited carbon.
Claim 5
Dependent Claim
17 words
A device as in claim 1 wherein the tissue ingrowth media is a porous collar of polyethyleneterephthalate.
Claim 6
Dependent Claim
40 words
A device as in claim 1 further comprising a plurality of flexible tubular catheter members, each in engagement with one of said arms and wherein said tissue ingrowth media extends over the joint between said arm and said catheter members.
Claim 7
Dependent Claim
24 words
A device as in claim 5 wherein each said catheter member includes a portion thereof having a plurality of perforations through the sides thereof.
Claim 8
Dependent Claim
23 words
A device as in claim 1 including two said arm portions each extending downwardly from said stem portion in a generally Y-shaped configuration.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |