Patent US5700273A successfully refreshed from Google Patents.
Patent US2349799A successfully refreshed from Google Patents.
EP0502905B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vascular surgical devices
Assignee: BTG International Ltd
•
Filing: 1990-11-30
•
Granted: 1994-09-14
•
Expires: 2010-11-30
Abstract
Abstract PCT No. PCT/GB90/01871 Sec. 371 Date May 22, 1992 Sec. 102(e) Date May 22, 1992 PCT Filed Nov. 30, 1990 PCT Pub. No. WO91/07927 PCT Pub. Date Jun. 13, 1991.The invention relates to a surgical device for use in operative substitution or replacement for a damaged or malformed body conduit or blood vessel, an example being an aortic aneurysm. One preferred embodiment includes a tubular body having open-end portions to provide a passageway. The wall of the body when inflated includes an annular chamber. Surrounding the body is an outer chamber of a flexible sleeve member. A probe is provided which extends forwardly of the leading end of the body, the probe providing sampling apertures to allow monitoring of body fluid flow when the device is in place. Further tubes permit inflation of the chambers. This device is suitable for insertion through the femoral artery.
Inventors
- 👤 Taha Roudan Roudan Cottage Cadwell Estate Lazim
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:42
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/958; A61F2/82; A61F2/86; A61F2/90; A61F2002/077; A61F2250/00; A61F2250/0003
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
213 words
A surgical device suitable for insertion into a body fluid passageway to span a damaged or deformed portion thereof by forming communication between two relatively sound portions of said passageway spaced apart by the intervening damaged or deformed region of the passageway, said device comprising a substantially tubular body portion (2) having open end portions (4,6), the body member comprising a tubular wall arrangement (8) adapted to be in an inoperative, flaccid, condition immediately before use, means being provided for rendering the flaccid wall arrangement into a relatively rigid condition when the device is in position for use within the body fluid passageway, characterized in that said surgical device further comprises an outer sleeve member (12) secured at one end thereof to the body portion adjacent to one of said open end portions and secured at the other end thereof to the body portion adjacent the second of said open end portions so as to define an annular outer chamber (G) around said body portion, said outer sleeve member being formed from flexible material in order to allow inflation of said annular outer chamber, and in that means are also provided for the inflation of the annular outer chamber in concomitance with said rendering the flaccid wall arrangement into a relative rigid condition.
Claim 2
Dependent Claim
73 words
A device as claimed in claim 1, wherein the tubular wall arrangement of of the body member comprises an inner flexible wall portion (8,42) and an outer, substantially coaxial, wall portion (10,44), said wall portions being sealed to each other at end portions thereof to form an annular wall chamber (B), the means to render the flaccid wall arrangement into a relatively rigid condition comprising inflation means to inflate the annular wall chamber.
Claim 3
Dependent Claim
30 words
A device as claimed in claim 2, wherein the inner wall portion and the outer wall portion are connected together at intervals by web portions (48) spanning the wall portions.
Claim 4
Dependent Claim
23 words
A device as claimed in claim 3, wherein the web portions are arranged to provide a series of longitudinally disposed, interconnected passages (46).
Claim 5
Dependent Claim
55 words
A device as claimed in claim 1, wherein the tubular wall arrangement of the body member comprises a flexible wall portion having passages formed therein with intervening solid wall portions (50), the means to render the body member into a relatively rigid condition comprising inflation means to inflate the passages in the flexible wall portion.
Claim 6
Dependent Claim
34 words
A device as claimed in claim 1, wherein the outer wall portion (10,44) of the annular walled chamber (B) is common with and shared by the annular outer chamber (C), forming its inner surface.
Claim 7
Dependent Claim
37 words
A device as claimed in claim 6, wherein the material from which the outer chamber (C) is formed is readily conformable in use to the contours of the interior surface of said intervening body fluid passageway region.
Claim 8
Dependent Claim
20 words
A device as claimed in claim 6, wherein the material from which the outer chamber (C) is formed is inelastic.
Claim 9
Dependent Claim
40 words
A device as claimed in claim 8, wherein the outer chamber in its inflated condition adopts a double-cone configuration in which the largest diameter (54) thereof is at the annular region when the bases of both cone configurations merge together.
Claim 10
Independent Claim
42 words
A device as claimed in any one of the preceding claims, in which there are provided monitoring means including a perforated probe (24) projecting beyond a leading end portion (4) of the device and including a tubular conduit to a sampling apparatus.
Claim 11
Dependent Claim
17 words
A device as claimed in claim 10, wherein the probe (24) provides support for the inflation means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.