EP0174802A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Percutaneous implant device
Assignee: W.L. Gore and Associates Inc
•
Filing: 1985-09-05
•
Granted: —
•
Expires: 2005-09-05
Abstract
Abstract A percutaneous implant device comprises a nonporous biocompatible conduit (12) having an attached flange (14), the flange having a top and a bottom. In the preferred embodiment, at the top of the flange, where the flange and conduit connect, the conduit emerges from the flange, necks inwardly and then flares outwardly forming an hourglass configuration. Above this neck the conduit forms substantially a right-angle bend, the conduit when extending substantially parallel to the skin. The device is implanted in the body such that the flange is below the surface of the skin. By reason of the bend in the conduit, the conduit can be grasped and held firmly while pressure is applied parallel to the kin surface to insert a needle into or apply a cover cap to the conduit. The conduit walls are preferably narrowed at the neck portion (20A) to allow flexure at that point.
Inventors
- 👤 Charles Michael Inman
- 👤 Donald Jesse Stone
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:13
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61M2039/0258; A61M2039/0282
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A percutaneous implant device (10) to provide a port of entry into the body comprising: a nonporous, biocompatible conduit (12) having an upper inlet opening (24) and extending from the top (17) of a lower attached flange t14), the flange top (17) having a continuously curved perimeter and a continuously curved side wall which tapers to a bottom wall (19) having a continuously curved perimeter of larger diameter than said top, and having a central opening therethrough extending from said top (17) through said flange to said bottom wall, the device being characterised in that the conduit (12) has an angle bend just above said flange (14) such that the portion of the conduit from the bend location to the upper inlet opening (24) forms an acute angle with the plane of the flange.
Claim 2
Dependent Claim
134 words
A percutaneous implant device (10) to provide a port of entry into the body comprising: a nonporous, biocompatible conduit (12) having an upper inlet opening (24) and extending from the top (17) of a lower attached flange t14), the flange top (17) having a continuously curved perimeter and a continuously curved side wall which tapers to a bottom wall (19) having a continuously curved perimeter of larger diameter than said top, and having a central opening therethrough extending from said top (17) through said flange to said bottom wall, the device being characterised in that the conduit (12) has an angle bend just above said flange (14) such that the portion of the conduit from the bend location to the upper inlet opening (24) forms an acute angle with the plane of the flange.
Claim 3
Dependent Claim
23 words
A device according to claim 1, wherein said angle bend is substantially a right angle bend, and said acute angle is substantially zero.
Claim 4
Dependent Claim
40 words
A device according to claim 1 or 2, wherein said conduit extends from the top of said flange first necking inwardly and then flaring outwardly forming an hourglass configuration (16) and having said angle bend just above said hourglass configuration.
Claim 5
Dependent Claim
45 words
A device of according to claim 3, wherein said conduit, within a part (20A) of said hourglass portion, has an inside diameter which is larger than the inside diameter of the remainder of said conduit providing a decreased conduit wall thickness at said hourglass configuration.
Claim 6
Independent Claim
93 words
A device according to any preceding claim, wherein said flange has an upper skirt (17) and a bottom skirt (19) formed of expanded, porous polytetrafluoroethylene having nodes and fibrils, with average fibril length greater than about 60 microns, to permit ingrowth of epidermal and connective tissue, (i) said upper skirt being in laminar contact with and attached to said side wall of said flange, and (ii) said lower skirt being in laminar contact with and attached to said bottom wall and attached to said upper skirt adjacent the perimeter of said bottom wall.
Claim 7
Independent Claim
30 words
A device according to any preceding claim, having attachment means (22) at said inlet opening (24) for removably attaching either cap means (46) or blunt insertion needle assembly means (40).
Claim 8
Dependent Claim
14 words
A device according to claim 6, wherein said attachment means (22) comprise threads (34).
Claim 9
Independent Claim
21 words
A device according to any preceding claim, having blunt insertion needle assembly means (40) removably attached to said inlet opening (24).
Claim 10
Independent Claim
18 words
A device according to any preceding claim, having a self-sealing valve (24) in said conduit inlet opening (24).
Claim 11
Independent Claim
41 words
A device according to any preceding claim, wherein connecting means (45,Fig.4) are provided in said central opening to connect said central opening at the bottom of said flange to an internal body conduit (44) such that said connecting means can swivel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.