US4516968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter shield and method of use
Assignee: RAY JEREMIAH B
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Filing: 1982-09-28
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Granted: 1985-05-14
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Expires: 2002-09-28
Abstract
Abstract A catheter shield comprising a dome surrounded by a peripheral, skin engaging flange. The dome defines a cavity, has a hole for the catheter, and has a radial slit extending to the edge of the shield to aid in placement of the shield around the catheter. Vents may be provided in the shield. The shield is held in place by holding the shield against the skin, moderately tensioning the catheter, providing means for preventing relative longitudinal motion between the catheter and the shield, and then releasing the catheter so the elasticity of the catheter and of the body parts which anchor it pull and hold the shield in place against the skin. A second method for securing the shield entails positioning the shield around the catheter, pressing the shield firmly downward against the skin, and applying a tape strip with one of its edges firmly against the top of the shield. When the hand pressure on the shield is released, the compressed portion of the body beneath the shield tries to expand and force the shield outwardly. However, since the tape strip prevents relative longitudinal motion between the shield and the catheter, the shield cannot move outwardly relative to the catheter and is thus held in place against the skin by the catheter and tape strip.
Inventors
- 👤 Charles A. Marshall
- 👤 Jeremiah B. Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61M2025/024; A61M2025/028; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
256 words
A catheter shield kit, wherein said kit comprises an elastic catheter adapted to enter a body through a catheter entrance site, wherein during use a portion of said catheter is anchored in said body, and wherein during use a portion of said catheter is outside said body and is under tension; wherein said kit further comprises a catheter anchor means and a catheter shield comprising a relatively stiff shield dome defining a shield cavity, a peripheral shield flange extending at least partially around said shield dome, and a catheter shield hole in the top of said shield dome generally aligned with said catheter entrance site; wherein said catheter shield hole is sized to be adapted to receive said catheter therethrough; wherein said catheter shield, during use, is adapted to be placed with said shield flange against said body, with said catheter entrance site under said shield dome, and with said catheter extending through said catheter shield hole; wherein said catheter anchor means, during use, are for securing at least one of said catheter and said catheter shield, and wherein said catheter anchor means, during use, are adapted to prevent longitudinal motion of said catheter shield away from said body with respect to said catheter; and wherein, during use, said tension of said portion of said catheter outside said body is adapted to pull on said catheter anchor means to urge said catheter shield snugly against said body, thereby eliminating the need to use adhesive media on said body to secure said catheter shield to said body.
Claim 2
Dependent Claim
256 words
A catheter shield kit, wherein said kit comprises an elastic catheter adapted to enter a body through a catheter entrance site, wherein during use a portion of said catheter is anchored in said body, and wherein during use a portion of said catheter is outside said body and is under tension; wherein said kit further comprises a catheter anchor means and a catheter shield comprising a relatively stiff shield dome defining a shield cavity, a peripheral shield flange extending at least partially around said shield dome, and a catheter shield hole in the top of said shield dome generally aligned with said catheter entrance site; wherein said catheter shield hole is sized to be adapted to receive said catheter therethrough; wherein said catheter shield, during use, is adapted to be placed with said shield flange against said body, with said catheter entrance site under said shield dome, and with said catheter extending through said catheter shield hole; wherein said catheter anchor means, during use, are for securing at least one of said catheter and said catheter shield, and wherein said catheter anchor means, during use, are adapted to prevent longitudinal motion of said catheter shield away from said body with respect to said catheter; and wherein, during use, said tension of said portion of said catheter outside said body is adapted to pull on said catheter anchor means to urge said catheter shield snugly against said body, thereby eliminating the need to use adhesive media on said body to secure said catheter shield to said body.
Claim 3
Dependent Claim
16 words
The kit according to claim 1, wherein said catheter anchor means comprises a strip of tape.
Claim 4
Dependent Claim
15 words
The kit according to claim 1, wherein said catheter anchor means comprises a collar means.
Claim 5
Dependent Claim
15 words
The kit according to claim 1, wherein said catheter anchor means comprises a clamp means.
Claim 6
Dependent Claim
25 words
The kit according to claim 1, wherein said catheter anchor means is at least partially a friction kit between said catheter and said catheter shield.
Claim 7
Dependent Claim
25 words
The kit according to claim 1, wherein said catheter anchor means includes set screw means secured to said catheter shield for selectively engaging said catheter.
Claim 8
Independent Claim
191 words
A method of securing a shield for a catheter to a body wherein said catheter enters said body through a catheter entrance site, wherein a portion of said catheter is anchored inside said body, wherein said catheter has a free portion outside said body, and wherein the metod comprises the steps of: providing a shield comprising a relatively stiff dome defining a cavity, a peripheral flange at least partially surrounding said dome, and a catheter hole defined by said dome; placing at least a part of said free portion of said catheter through said catheter hole; taking a tension on said free portion of said catheter; locating said flange of said shield adjacent said body with said catheter entrance site beneath said dome; providing means for preventing longitudinal motion of said catheter shield away from said body with respect to said catheter; and releasing at least some of said tension on said free portion of said catheter; wherein after said tension on said free portion of said catheter is at least partially released, said catheter pulls said shield against said body and holds said shield snugly in place on said body.
Claim 9
Independent Claim
191 words
A method of securing a shield for a catheter to a body wherein said catheter enters said body through a catheter entrance site, wherein a portion of said catheter is anchored inside said body, wherein said catheter has a free portion outside said body, and wherein the metod comprises the steps of: providing a shield comprising a relatively stiff dome defining a cavity, a peripheral flange at least partially surrounding said dome, and a catheter hole defined by said dome; placing at least a part of said free portion of said catheter through said catheter hole; taking a tension on said free portion of said catheter; locating said flange of said shield adjacent said body with said catheter entrance site beneath said dome; providing means for preventing longitudinal motion of said catheter shield away from said body with respect to said catheter; and releasing at least some of said tension on said free portion of said catheter; wherein after said tension on said free portion of said catheter is at least partially released, said catheter pulls said shield against said body and holds said shield snugly in place on said body.
Claim 10
Independent Claim
217 words
A method of securing a shield for a catheter to a body wherein said catheter enters said body through a catheter entrance site, wherein a portion of said catheter is anchored inside said body, wherein said catheter has a free portion outside said body, and wherein the method comprises the steps of: providing a shield comprising a relatively stiff dome defining a cavity, a peripheral flange at least partially surrounding said dome, and a catheter hole defined by said dome; placing at least a part of said free portion of said catheter through said catheter hole; locating said flange of said shield adjacent said body with said catheter entrance site beneath said dome; compressing the portion of said body beneath said shield by pressing said shield firmly against said body; providing means for preventing longitudinal motion of said catheter shield away from said body with respect to said catheter when ceasing to press said shield firmly against said body; and ceasing said compressing of said portion of said body beneath said shield by ceasing to press said shield firmly against said body; wherein after ceasing to press said shield firmly against said body, said catheter helps to prevent outward movement of said shield away from said body to hold said shield snugly in place on said body.
Claim 11
Independent Claim
217 words
A method of securing a shield for a catheter to a body wherein said catheter enters said body through a catheter entrance site, wherein a portion of said catheter is anchored inside said body, wherein said catheter has a free portion outside said body, and wherein the method comprises the steps of: providing a shield comprising a relatively stiff dome defining a cavity, a peripheral flange at least partially surrounding said dome, and a catheter hole defined by said dome; placing at least a part of said free portion of said catheter through said catheter hole; locating said flange of said shield adjacent said body with said catheter entrance site beneath said dome; compressing the portion of said body beneath said shield by pressing said shield firmly against said body; providing means for preventing longitudinal motion of said catheter shield away from said body with respect to said catheter when ceasing to press said shield firmly against said body; and ceasing said compressing of said portion of said body beneath said shield by ceasing to press said shield firmly against said body; wherein after ceasing to press said shield firmly against said body, said catheter helps to prevent outward movement of said shield away from said body to hold said shield snugly in place on said body.
References Cited (Backward Citations)
US703290A
Cited
US3234941A
Cited
US3487837A
Cited
US3605752A
Cited
US3682180A
Cited
US3683911A
Cited
US3900026A
Cited
US3957048A
Cited
US4261303A
Cited
US4392857A
Cited
US4419097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |