Patent US4842589A successfully refreshed from Google Patents.
US4842589A
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US
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Intercavity catheter
Assignee: Covidien AG
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Filing: 1986-11-26
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Granted: 1989-06-27
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Expires: 2006-11-26
Abstract
Abstract An intercavity catheter having a distal end portion with serrations on the inner wall thereof.
Inventors
- 👤 David C. Fecht
- 👤 Thomas B. Ferguson
- 👤 Ronald Crouther
- 👤 Alan B. Ranford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
A; A61; A61M; A61M27/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
A catheter adapted to have one end pulled through an incision from inside a body to the outside of the body comprising a tubular member having a distal end portion for placement within the body, and a proximal end portion adpated to be grasped by forcep means and pulled through an incision in the body for subsequent positioning outside of the body, the inner wall of said proximal portion having a roughened area including a plurality of serrations adapted to be grasped by the forcep means during use, said roughened area extending distally substantially from the proximal most point of said proximal end portion for a predetermined distance, and the inner wall of the rest of said tubular member being substantially smooth.
Claim 2
Dependent Claim
122 words
A catheter adapted to have one end pulled through an incision from inside a body to the outside of the body comprising a tubular member having a distal end portion for placement within the body, and a proximal end portion adpated to be grasped by forcep means and pulled through an incision in the body for subsequent positioning outside of the body, the inner wall of said proximal portion having a roughened area including a plurality of serrations adapted to be grasped by the forcep means during use, said roughened area extending distally substantially from the proximal most point of said proximal end portion for a predetermined distance, and the inner wall of the rest of said tubular member being substantially smooth.
Claim 3
Dependent Claim
23 words
The catheter of claim 1 wherein each of said serrations includes a pair of side walls intersecting each other defining an arcuate edge.
Claim 4
Dependent Claim
27 words
The catheter of claim 1 wherein said roughened area extends proximally between about one-quarter inch to one inch from the proximal most point of said proximal portion.
Claim 5
Dependent Claim
26 words
The catheter of claim 1 wherein the walls of said catheter between said roughened area and the distal most point of the tubular member being smooth.
Claim 6
Dependent Claim
14 words
The catheter of claim 1 wherein said tubular member is of a plastic material.
Claim 7
Dependent Claim
14 words
The catheter of claim 5 wherein said plastic material is a heat-formable plastic material.
Claim 8
Dependent Claim
12 words
The catheter of claim 6 wherein said plastic material includes polyvinyl chloride.
Claim 9
Dependent Claim
14 words
The catheter of claim 1 wherein said serrations are in substantially parallel arcuate rows.
Claim 10
Dependent Claim
29 words
The catheter of claim 1 wherein said proximal end portion has a proximal end edge which extends at an angle to the longitudinal axis of said proximal end portion.
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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) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |