Patent US4936823A successfully refreshed from Google Patents.
US4936823A
Expired / Lapsed
US
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Transendoscopic implant capsule
Assignee: PYRAMID TECHNOLOGIES INTERNATIONAL Inc
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Filing: 1988-05-04
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Granted: 1990-06-26
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Expires: 2008-05-04
Abstract
Abstract An implant capsule for insertion into a body canal to apply radiation treatment to a selected portion of the body canal. The device includes a body member defining at least one therapeutic treatment material receiving chamber and at least one resilient arm member associated with the body member for removably engaging the body canal when the device is positioned therein.
Inventors
- 👤 David P. Colvin
- 👤 Bernard R. Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; A61N5/1002; A61M; A61M31/00; A61M31/002; A61F; A61F2/00; A61F2/01; A61F2002/016; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2230/008; A61F2230/0093
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
A device for applying a therapeutic treatment to a selected portion of a body for a predetermined period of time comprising: a body member defining at least two elongate therapeutic treatment material receiving chamber means for receiving a radiotherapy treatment agent; a plurality of retractable resilient arm members carried by said body member and extending generally radially outwardly therefrom, said arm members being adapted to be compressed radially inwardly into groove means defined by said body member for receiving same during transportation of the device to a portion of the body requiring therapeutic treatment and to then be released so as to allow said arm members to return their position extending outwardly from said body member in order to engage the body portion and to apply the therapeutic treatment thereto; and means for attaching an instrument for inserting and removing said device.
Claim 2
Independent Claim
142 words
A device for applying a therapeutic treatment to a selected portion of a body for a predetermined period of time comprising: a body member defining at least two elongate therapeutic treatment material receiving chamber means for receiving a radiotherapy treatment agent; a plurality of retractable resilient arm members carried by said body member and extending generally radially outwardly therefrom, said arm members being adapted to be compressed radially inwardly into groove means defined by said body member for receiving same during transportation of the device to a portion of the body requiring therapeutic treatment and to then be released so as to allow said arm members to return their position extending outwardly from said body member in order to engage the body portion and to apply the therapeutic treatment thereto; and means for attaching an instrument for inserting and removing said device.
Claim 3
Dependent Claim
26 words
A device according to claim 1 wherein said body member defines at least two substantially parallel treatment receiving chamber means for receiving said radiotherapy treatment agent.
Claim 4
Dependent Claim
45 words
A device according to claim 1, further including a central stem wherein said plurality of resilient arm members extend outwardly from said central stem, said central stem being concentrically secured to said body member and extending substantially parallel to said treatment material receiving chamber means.
Claim 5
Dependent Claim
25 words
A device according to claim 3 wherein said plurality of arm members each comprises an end portion turned back on itself to define a barb.
Claim 6
Independent Claim
21 words
A device according to claims 2 or 3 wherein said body member is coextensive with one end of said central stem.
Claim 7
Independent Claim
23 words
A device according to claims 2 or 3 wherein said body member is coextensive with substantially the entire length of said central stem.
Claim 8
Dependent Claim
32 words
A device according to claim 1 wherein said body member is adapted to receive one or more radioisotope seeds within each of said at least two therapeutic treatment material receiving chamber means.
Claim 9
Dependent Claim
30 words
A device according to claim 1 wherein said body member is adapted to receive a chemotherapeutic agent within each of said at least two therapeutic treatment material receiving chamber means.
Claim 10
Dependent Claim
32 words
A device according to claim 1 wherein said body member is adapted to receive a chemotherapeutic agent and a radioactive isotope within said at least two therapeutic treatment material receiving chamber means.
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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) | 1993-06-25 | 1993-12-25 | 1994-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-25 | 1997-12-25 | 1998-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-25 | 2001-12-25 | 2002-06-26 | $7700.00 | Window Closed / Lapsed |