US5128088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous method for making adhesive-lined male external catheters
Assignee: Hollister Inc
•
Filing: 1990-08-14
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Granted: 1992-07-07
•
Expires: 2010-08-14
Abstract
Abstract A continuous method for making adhesive-lined condom catheters for male urinary drainage. The method involves successive steps carried out with respect to a dipping mandrel and a latex catheter being formed upon it, all of which may be performed automatically as the mandrel is advanced from one station to the next.
Inventors
- 👤 Gary D. Shimomura
- 👤 Eric D. Ellingson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:42
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/451; A61F5/453
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
212 words
A method for making male external catheters with adhesive-coated inside surfaces by means of a vertically-oriented, rigid, dipping mandrel having a generally cylindrical body portion and a reduced lower end portion, comprising the steps of: applying a heat-curable, pressure-sensitive adhesive to surfaces of said body portion and said reduced lower end portion to form a weakly-adhering, pressure-sensitive adhesive coating thereon; then, while said coating is uncured, washing away said coating from said surfaces of said lower end portion and a part of said body portion adjacent thereto while leaving a band of said adhesive coating about a part of said cylindrical body portion thereabove; then curing said adhesive of said band; then dipping said mandrel into a latex bath to form a first latex layer over said mandrel and said band of adhesive coating and exposing said first latex layer to a coagulating agent and heat; repeating said latex dripping step to form at least one further latex layer over said first latex layer and also exposing said further layer to a coagulating agent and heat; drying said latex layers to provide a dry, multi-layered latex catheter supported by said mandrel; dipping said mandrel in a silicone bath to form a release coating upon said catheter; and curing said silicone release coating.
Claim 2
Independent Claim
212 words
A method for making male external catheters with adhesive-coated inside surfaces by means of a vertically-oriented, rigid, dipping mandrel having a generally cylindrical body portion and a reduced lower end portion, comprising the steps of: applying a heat-curable, pressure-sensitive adhesive to surfaces of said body portion and said reduced lower end portion to form a weakly-adhering, pressure-sensitive adhesive coating thereon; then, while said coating is uncured, washing away said coating from said surfaces of said lower end portion and a part of said body portion adjacent thereto while leaving a band of said adhesive coating about a part of said cylindrical body portion thereabove; then curing said adhesive of said band; then dipping said mandrel into a latex bath to form a first latex layer over said mandrel and said band of adhesive coating and exposing said first latex layer to a coagulating agent and heat; repeating said latex dripping step to form at least one further latex layer over said first latex layer and also exposing said further layer to a coagulating agent and heat; drying said latex layers to provide a dry, multi-layered latex catheter supported by said mandrel; dipping said mandrel in a silicone bath to form a release coating upon said catheter; and curing said silicone release coating.
Claim 3
Dependent Claim
38 words
The method of claim 1 in which there is the further step of rolling said catheter off of said mandrel with said band of pressure-sensitive adhesive coating releasing from said mandrel and adhering to said catheter's inner surface.
Claim 4
Independent Claim
29 words
The method of claims 1 or 2 in which said step of applying said adhesive to said mandrel includes dipping said mandrel into a bath of liquid pressure-sensitive adhesive.
Claim 5
Dependent Claim
40 words
The method of claim 1 in which there is the step of applying a release agent to the surfaces of said mandrel below said adhesive band following said washing step and prior to dipping said mandrel in a latex bath.
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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) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |