US4820262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ureteral stent
Assignee: Cabot Technology Corp
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Filing: 1985-12-12
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Granted: 1989-04-11
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Expires: 2005-12-12
Abstract
Abstract An adjustable ureteral stent comprises an elongated, flexible tubular member with a hook at the proximal end, a generally straight elongated trimmable portion extending to the distal end and means for forming a hook at the distal end. In one embodiment the means is a second member which connects to the distal end of the first member and in another embodiment the means is a reinforcing wire or strip in the wall of the tubular member which when formed into a hook will retain that shape in the absence of a straightening force.
Inventors
- 👤 Roy P. Finney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/94; A61M; A61M27/00; A61M27/002; A61M27/008; A61F2220/00; A61F2220/0008; A61F2220/0016
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
An elongated member for use in preparing a custom length ureteral stent for a specific patient, said stent having hooks at the proximal and distal ends and an elongated intermediate section, said member having a preformed hook at the proximal end and an elongated, substantially straight distal end which is removable, said distal end including a reinforcing strip of spring wire in a wall thereof, said spring wire being trimmable and permitting said distal end to be readily formed into a second hook which can be straightened with a guide wire and which will resume its hook shape when the guide wire is removed.
Claim 2
Dependent Claim
104 words
An elongated member for use in preparing a custom length ureteral stent for a specific patient, said stent having hooks at the proximal and distal ends and an elongated intermediate section, said member having a preformed hook at the proximal end and an elongated, substantially straight distal end which is removable, said distal end including a reinforcing strip of spring wire in a wall thereof, said spring wire being trimmable and permitting said distal end to be readily formed into a second hook which can be straightened with a guide wire and which will resume its hook shape when the guide wire is removed.
Claim 3
Dependent Claim
113 words
A kit for preparing a custom length ureteral stent for a specific patient, said stent having proximal and distal hooks and an elongated intermediate section, said kit comprising a member having a hook at one end and an elongated substantially straight distal end which is removable, said distal end including a trimmable, reinforcing strip of spring wire in a wall thereof, said spring wire permitting said distal end to be formed into a second hook which can later be straightened and which will resume its hook shape when the straightening force is removed; and a tool for forming the distal end of the member containing the strip of spring wire into a hook.
Claim 4
Dependent Claim
113 words
A kit for preparing a custom length ureteral stent for a specific patient, said stent having proximal and distal hooks and an elongated intermediate section, said kit comprising a member having a hook at one end and an elongated substantially straight distal end which is removable, said distal end including a trimmable, reinforcing strip of spring wire in a wall thereof, said spring wire permitting said distal end to be formed into a second hook which can later be straightened and which will resume its hook shape when the straightening force is removed; and a tool for forming the distal end of the member containing the strip of spring wire into a hook.
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |