US3913587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable extendable member
Assignee: Dow Silicones Corp
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Filing: 1974-10-15
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Granted: 1975-10-21
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Expires: 1994-10-15
Abstract
Abstract A surgically implantable device such as hydrocephalus shunt tubing or heart pacer lead which is designed to extend as a body grows. The tubing or lead has a center section which is loosely coiled within a surgically implantable capsule and is designed to be gradually pulled therefrom as needed.
Inventors
- 👤 Mahmoud S Newash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:40
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61M2039/0267; A61M2039/0276; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2164
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
141 words
A surgically implantable device for transfer of fluids or energy in an animal body, having tissue and fluids, the device formed of a material substantially inert to the tissue and fluids comprising; a one piece elongated member designed to interconnect two separated parts of the body, and a hollow capsule having an inner diameter at least five times greater than the outer diameter of the elongated member surrounding a portion of said elongated member and containing an unrestrained coiled length portion of said elongated member within the hollow of said capsule which length portion is substantially longer than the hollow; the hollow capsule having a smooth, uninterrupted walls defining openings at each end thereof circumscribing a portion of the elongated member, the elongated member is freely slidable through said openings when tension is applied between the opposite ends of the device.
Claim 2
Dependent Claim
141 words
A surgically implantable device for transfer of fluids or energy in an animal body, having tissue and fluids, the device formed of a material substantially inert to the tissue and fluids comprising; a one piece elongated member designed to interconnect two separated parts of the body, and a hollow capsule having an inner diameter at least five times greater than the outer diameter of the elongated member surrounding a portion of said elongated member and containing an unrestrained coiled length portion of said elongated member within the hollow of said capsule which length portion is substantially longer than the hollow; the hollow capsule having a smooth, uninterrupted walls defining openings at each end thereof circumscribing a portion of the elongated member, the elongated member is freely slidable through said openings when tension is applied between the opposite ends of the device.
Claim 3
Dependent Claim
17 words
A surgically implantable device as defined in claim 1 wherein saId elongated member is a hollow tube.
Claim 4
Dependent Claim
24 words
A surgically implantable device as defined in claim 2 wherein said surgically implantable device is a hydrocephalus shunt or part of such a shunt.
Claim 5
Dependent Claim
18 words
A surgically implantable device as defined in claim 1 wherein said elongated member contains an electrically conductive element.
Claim 6
Dependent Claim
19 words
A surgically implantable device as defined in claim 4 wherein said electrically conductive element is a heart pacer lead.
References Cited (Backward Citations)
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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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |