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Patent US4892516A successfully refreshed from Google Patents.
US4892516A
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US
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Surgical aid
Assignee: Merck Patent GmbH
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Filing: 1983-05-29
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Granted: 1990-01-09
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Expires: 2003-05-29
Abstract
Abstract The invention proposes a surgical aid which contains pharmaceutical active compounds in support materials which permit protracted release of the active compounds, this aid being designed in the form of a flat article provided with free spaces, and, as a rule, the individual free spaces having, at least predominantly, an area of at least 0.1 cm 2 .
Inventors
- 👤 Anton Harle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:14
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61L; A61L27/00; A61L27/50; A61L27/54; A61M; A61M31/00; A61M31/002; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/406; A61L2300/44; A61L2300/60; A61L2300/62
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
A surgical aid, capable of being incorporated into soft tissue wounds, the surgical aid comprising a pharmaceutically active compound retained in a support structure, the surgical aid permitting protracted release of the active compund, the support structure being configured as a flat article provided with individual free spaces, each individual free space having an area of at least 0.1 cm 2 , the total area of the free spaces comprising at least 60 percent of the area of the flat article.
Claim 2
Dependent Claim
81 words
A surgical aid, capable of being incorporated into soft tissue wounds, the surgical aid comprising a pharmaceutically active compound retained in a support structure, the surgical aid permitting protracted release of the active compund, the support structure being configured as a flat article provided with individual free spaces, each individual free space having an area of at least 0.1 cm 2 , the total area of the free spaces comprising at least 60 percent of the area of the flat article.
Claim 3
Dependent Claim
21 words
The surgical aid according to claim 1, wherein the support structure is made from material which is adsorbable by the body.
Claim 4
Dependent Claim
26 words
The surgical aid according to claim 2, wherein molded items containing the active compound are located in defined spacings at areas which contain no active compound.
Claim 5
Dependent Claim
16 words
The surgical aid according to claim 3, wherein the molded items are capsules constructed of half-shells.
Claim 6
Dependent Claim
35 words
The surgical aid according to claim 1, wherein the support structure is a lattice formed of threads crossing at points of intersection, the active compound being concentrated at the points of intersection of the lattice.
Claim 7
Dependent Claim
22 words
The surgical aid according to claim 5, wherein molded items containing the active compound are located with defined spacings at the intersections.
Claim 8
Dependent Claim
16 words
The surgical aid according to claim 6, wherein the molded items are capsules constructed of half-shells.
Claim 9
Dependent Claim
16 words
The surgical aid of claim 5, wherein the active compound is also disposed on the threads.
Claim 10
Dependent Claim
53 words
The surgical aid according to claim 1, wherein the flat article is in the form of a lattice having threads crossing at points of intersection to define spaces between the threads, and wherein molded items containing the active compound are disposed in some of the spaces, the remaining spaces being said free spaces.
Claim 11
Dependent Claim
106 words
A surgical aid capable of being incorporated into soft tissue, the surgical aid containing radioactive isotopes retained in support structure, the surgical aid permitting protracted application of radiation from said radioactive isotopes, the surgical aid comprising a flat support structure having free spaces, each individual free space having an area of at least 0.1 cm 2 , wherein the total area of the free spaces comprise at least 60 percent of the area of the flat support structure, a plurality of molded shells distributed in spaced relation in the flat support structure, the radioactive isotopes being retained in the molded shells and being completely surrounded thereby.
Claim 12
Dependent Claim
106 words
A surgical aid capable of being incorporated into soft tissue, the surgical aid containing radioactive isotopes retained in support structure, the surgical aid permitting protracted application of radiation from said radioactive isotopes, the surgical aid comprising a flat support structure having free spaces, each individual free space having an area of at least 0.1 cm 2 , wherein the total area of the free spaces comprise at least 60 percent of the area of the flat support structure, a plurality of molded shells distributed in spaced relation in the flat support structure, the radioactive isotopes being retained in the molded shells and being completely surrounded thereby.
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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) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |