US4477255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutically acceptable silicon rubber and therapeutical set and the use thereof for surgical embolization
Assignee: Individual
•
Filing: 1982-12-01
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Granted: 1984-10-16
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Expires: 2002-12-01
Abstract
Abstract A therapeutic set or kit containing a silicon rubber mixture for surgical embolization composed of (a) a linear, low viscosity polysiloxane selected from the group consisting of dialkyl, alkylaryl, alkenylalkyl, and diaryl polysiloxanes having reactive functional groups selected from the group consisting of hydroxy, acyloxy, alkoxy and amino; (b) a cyclic dialkyl polysiloxane having the formula [R 2 SiO] 4 , wherein R is alkyl; and a pharmaceutically acceptable iodo-containing organosilicium X-ray contrast material or non-metallic organic X-ray contrast material. The mixture can be used in cerebrovascular surgery and general surgery for surgical embolization with the aid of a catheter.
Inventors
- 👤 Emil Pasztor
- 👤 Laszlo Lazar
- 👤 Jozsef Nagy
- 👤 Katalin Pallosy nee Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:36
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0442; A61L24/00; A61L24/001; A61L24/04; A61L24/046; A61L29/00; A61L29/04; A61L29/06; C; C08; C08K; C08K5/00; C08K5/54; C08L; C08L83/00; C08L83/04; A61B; A61B90/00; A61B90/39; A61L2430/00; A61L2430/36; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/18; C08G77/20; C08G77/22; C08G77/26; C08G77/70; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
42 words
A therapeutic set or kit containing a silicon rubber component A composed of a linear polysiloxane, a cyclic dialkyl-polysiloxane and a pharmaceutically acceptable iodo-containing organosilicium or non-metallic organic X-ray contrast material, a therapeutically acceptable cross-linking catalyst as component B, and a microcatheter.
Claim 2
Dependent Claim
42 words
A therapeutic set or kit containing a silicon rubber component A composed of a linear polysiloxane, a cyclic dialkyl-polysiloxane and a pharmaceutically acceptable iodo-containing organosilicium or non-metallic organic X-ray contrast material, a therapeutically acceptable cross-linking catalyst as component B, and a microcatheter.
Claim 3
Dependent Claim
17 words
The therapeutic set or kit of claim 1 having a balloon at the end of the catheter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |