Patent US4533349A successfully refreshed from Google Patents.
US4533349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin mounted drainage catheter retention disc
Assignee: Medical Engineering Corp
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Filing: 1982-11-08
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Granted: 1985-08-06
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Expires: 2002-11-08
Abstract
Abstract A skin mounted retention disc for maintaining a catheter indwelling comprises an elastomeric disc having a centrally disposed bore therethrough dimensioned to receive the catheter. About the periphery of the elastomeric disc is a plurality of very small holes to enable the disc to be sutered to the skin. Integrated to and extending upwardly from the elastomeric disc is a projection having a helically disposed channel therein for engaging the catheter as the catheter tube is wrapped about the disc after exiting the skin. A connecting tube having low release force connectors at either end is secured to the disc and links the catheter to a drainage bag. Because the force required to break the connection between the connecting tube and either the drainage bag or the catheter is less than the force required to dislodge the skin mounted retention disc, the connecting tube serves as a safety release to prevent the disc from becoming dislodged should the patient stray from the drainage bag.
Inventors
- 👤 Jeffrey E. Bark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61M2025/024; A61M2025/0286; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
An improved skin mounted retention disc for retaining a drainage catheter indwelling comprising: a substrate having a bore disposed therethrough dimensioned to receive a drainage catheter so that the catheter can be inserted through the disc and into the skin; guide means integrated to said disc for engaging the drainage catheter to retain the drainage catheter to said disc; and safety release connecting means for connecting the drainage catheter to a drainage bag and for breaking the connection between the drainage catheter and the drainage bag once said disc is displaced from the drainage bag, thereby avoiding separation of said skin mounted retention disc from the patient's skin.
Claim 2
Dependent Claim
108 words
An improved skin mounted retention disc for retaining a drainage catheter indwelling comprising: a substrate having a bore disposed therethrough dimensioned to receive a drainage catheter so that the catheter can be inserted through the disc and into the skin; guide means integrated to said disc for engaging the drainage catheter to retain the drainage catheter to said disc; and safety release connecting means for connecting the drainage catheter to a drainage bag and for breaking the connection between the drainage catheter and the drainage bag once said disc is displaced from the drainage bag, thereby avoiding separation of said skin mounted retention disc from the patient's skin.
Claim 3
Dependent Claim
33 words
The invention according to claim 1 wherein said guide means comprises a raised portion extending upwardly from said disc, said raised portion having a radiused channel therein dimensioned to receive the drainage catheter.
Claim 4
Dependent Claim
106 words
The invention according to claim 1 wherein said safety release connecting means comprises: a first low release force connector attached to said projection, said first connector having a first barb at one end thereof for mating with the drainage catheter and having a second barb at the opposite connector end; a connecting tube having one end thereof attached to said second barb of said first connector; and a second connector having a barb at one end thereof for mating with the other of the ends of said connecting tube and said second connector having a luer at its opposite end for mating with a drainage bag.
Claim 5
Dependent Claim
136 words
An improved skin mounted retention disc for retaining a drainage catheter indwelling comprising: a disc having a centrally disposed bore therethrough dimensioned to receive a drainage catheter to enable the catheter to be inserted through the disc and into the skin; guide means integrated to said disc, said guide means dimensioned for engaging the catheter to retain the catheter to said disc and comprising a raised portion integrated to and extending upwardly from said disc, said raised portion having a helically disposed radiused channel therein for receiving the drainage catheter; and an overhanging edge on said raised portion lying substantially along the path of curvature of said helically disposed radiused channel for retaining the drainage catheter when the drainage catheter is wrapped around said raised portion so as to be seated within said helically disposed channel.
Claim 6
Dependent Claim
136 words
An improved skin mounted retention disc for retaining a drainage catheter indwelling comprising: a disc having a centrally disposed bore therethrough dimensioned to receive a drainage catheter to enable the catheter to be inserted through the disc and into the skin; guide means integrated to said disc, said guide means dimensioned for engaging the catheter to retain the catheter to said disc and comprising a raised portion integrated to and extending upwardly from said disc, said raised portion having a helically disposed radiused channel therein for receiving the drainage catheter; and an overhanging edge on said raised portion lying substantially along the path of curvature of said helically disposed radiused channel for retaining the drainage catheter when the drainage catheter is wrapped around said raised portion so as to be seated within said helically disposed channel.
Claim 7
Dependent Claim
114 words
An improved skin mounted retention disc for retaining a catheter indwelling comprising: a substrate having a centrally disposed bore for receiving the drainage catheter; a raised portion integrated to and extending upwardly from said substrate adjacent to said substrate bore, said raised portion having a helically disposed radiused channel therein dimensioned to receive a drainage catheter when the drainage catheter is wrapped about said raised portion upon exiting said substrate bore; and a pair of horizontally oriented parallel surfaces, one of said pair of parallel surfaces having an overhanging edge lying substantially within the path of curvature of said helically disposed channel for retaining the drainage catheter as the catheter leaves said radiused channel.
Claim 8
Dependent Claim
114 words
An improved skin mounted retention disc for retaining a catheter indwelling comprising: a substrate having a centrally disposed bore for receiving the drainage catheter; a raised portion integrated to and extending upwardly from said substrate adjacent to said substrate bore, said raised portion having a helically disposed radiused channel therein dimensioned to receive a drainage catheter when the drainage catheter is wrapped about said raised portion upon exiting said substrate bore; and a pair of horizontally oriented parallel surfaces, one of said pair of parallel surfaces having an overhanging edge lying substantially within the path of curvature of said helically disposed channel for retaining the drainage catheter as the catheter leaves said radiused channel.
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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) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |