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US5290305A Expired / Lapsed US ⏱️ 0.0 years remaining

Appliance collapsible for insertion into human organs and capable of resilient restoration

Assignee: Individual
•
Filing: 1992-07-28
•
Granted: 1994-03-01
•
Expires: 2012-07-28
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Abstract

Abstract An artificial body vessel to be inserted into a human organ is collapsed and introduced into a catheter, which is brought to a required position in the human organ, where the artificial body vessel is released therefrom. A pair of foldable, elastic wire rings 10 are provided at the opposite ends of the artificial body vessel. A plurality of connecting wire rings bridge the end wire rings 10. A plurality of intermediate wire rings 12 bind and keep the connecting wire rings 11 transformed in a generally elliptical shape. The end wire rings 10, the intermediate wire rings 12 and the connecting wire rings 11 are folded by means of a string passed through loops to collapse the artificial body vessel 7. The collapsed artificial body vessel 7 is inserted into a catheter. At the objective position of the blood vessel the artificial body vessel 7 is released, so that the resiliency of the end wire rings 10, the intermediate wire rings 12 and the connecting wire rings 11 restores the artificial body vessel 7 to its original tubular shape. The artificial body vessel 7 is released by means of a tube, formed with a side window adjacent its front end, containing a wire which extends along the side window.

Inventors

  • 👤 Kanji Inoue

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/9522; A61B; A61B17/00; A61B17/12; A61B17/12009; A61B17/12013; A61F2/82; A61F2/86; A61F2/89; A61F2/9525; A61F2/958; A61F2002/075; A61F2002/825; A61F2002/9505; A61F2002/9511; A61F2220/00; A61F2220/0025; A61F2220/0075

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 142 words
A collapsible surgical appliance formed of biocompatible material and configured to be inserted in to a human organ and capable of resilient restoration, comprising: two discrete wire loops comprising a pair of foldable elastic end wire rings, provided at opposite ends of the appliance; at least two discrete wire loops comprising at least two foldable, elastic connecting wire rings, having a generally circular shape when no external force is applied thereto, fixed to the pair of foldable elastic end wire rings so as to bridge the pair of foldable elastic end wire rings; and at least two intermediate wire rings provided between the pair of foldable elastic end wire rings, said two intermediate wire rings being connected to said connecting wire rings so as to keep said at least two foldable elastic connecting wire rings resiliently transformed in a generally elliptical shape.
Claim 2
Dependent Claim 142 words
A collapsible surgical appliance formed of biocompatible material and configured to be inserted in to a human organ and capable of resilient restoration, comprising: two discrete wire loops comprising a pair of foldable elastic end wire rings, provided at opposite ends of the appliance; at least two discrete wire loops comprising at least two foldable, elastic connecting wire rings, having a generally circular shape when no external force is applied thereto, fixed to the pair of foldable elastic end wire rings so as to bridge the pair of foldable elastic end wire rings; and at least two intermediate wire rings provided between the pair of foldable elastic end wire rings, said two intermediate wire rings being connected to said connecting wire rings so as to keep said at least two foldable elastic connecting wire rings resiliently transformed in a generally elliptical shape.
Claim 3
Dependent Claim 43 words
The appliance collapsible for insertion into human organs and capable of resilient restoration, as described in claim 1, further comprising loops, for a pull string to be passed through, wherein said loops are provided at points on said foldable elastic end wire rings.
Claim 4
Dependent Claim 57 words
The appliance collapsible for insertion into human organs and capable of resilient restoration, as described in claim 1, further comprising a tube made of cloth or a sheet of flexible material, wherein the pair of foldable elastic end wire rings are provided at opposite ends of said tube made of cloth or a sheet of flexible material.
Claim 5
Dependent Claim 39 words
The appliance collapsible for insertion into human organs and capable of resilient restoration, as described in claim 3, further comprising loops, for a pull string to be passed through, provided at points on said foldable elastic end wire rings.

References Cited (Backward Citations)

FR2399853A1 Cited
WO1983003752A1 Cited
US4512338A Cited
SU1217402A1 Cited
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US4739762B1 Cited
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JPS63160644A Cited
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JPS63257576A Cited
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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) 1997-02-28 1997-08-30 1998-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-02-28 2001-08-30 2002-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-02-28 2005-08-30 2006-03-01 $7700.00 Window Closed / Lapsed

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