US4936857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic pericardium
Assignee: KLINICHESKY TSENTR NOVYKH MEDITSINSKIKH TEKHNOLOGY USSR LENINGRAD SEVERNY PROSPEKT 1
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Filing: 1988-02-15
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Granted: 1990-06-26
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Expires: 2008-02-15
Abstract
Abstract A prosthetic pericardium comprises a sheathing (1) made of a biologically neutral elastic material and sized to suit the heart's size, and provided with a means for its being fixed on the heart. The sheathing (1) is shaped as a figure-of-eight platelet one of whose loops (2) has a greater area than the other loop and is provided with a projection shaped as a reed (4) and located at its top. The fixation means is made as a guide channel (5) situated along the contour of the platelet accommodated in the channel (5) of a tube (6) made of an elastic material, and a flexible cord (7) accommodated in the tube (6) with a possibility of reciprocating therealong.
Inventors
- 👤 Yaroslav P. Kulik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/165; A61M60/20; A61M60/247; A61M60/253; A61M60/268
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
A prosthetic pericardium dimensioned to fit about the heart comprising a sheathing (1) formed from a biocompatible elastic material and provided with fixation means for fixing said sheathing on the heart said sheathing being shaped in the form of a figure-of-eight platelet having a perimeter and two loop portions, one of the loop portions (2) of said platelet having a larger area than the other of said loop portions, said one loop portion being provided with a projection shaped as a reed, said reed situated on said one loop portion at a position opposite said other loop portion, said fixation means comprising a guide channel (5) situated along the perimeter of said platelet, a tube (6) formed from an elastic material reciprocatingly mounted within said channel, and a flexible cord (7) reciprocatingly mounted within said tube, the ends of said tube (6) and said cord (7) exiting from said channel at a position on said one loop portion opposite said other loop portion.
Claim 2
Dependent Claim
163 words
A prosthetic pericardium dimensioned to fit about the heart comprising a sheathing (1) formed from a biocompatible elastic material and provided with fixation means for fixing said sheathing on the heart said sheathing being shaped in the form of a figure-of-eight platelet having a perimeter and two loop portions, one of the loop portions (2) of said platelet having a larger area than the other of said loop portions, said one loop portion being provided with a projection shaped as a reed, said reed situated on said one loop portion at a position opposite said other loop portion, said fixation means comprising a guide channel (5) situated along the perimeter of said platelet, a tube (6) formed from an elastic material reciprocatingly mounted within said channel, and a flexible cord (7) reciprocatingly mounted within said tube, the ends of said tube (6) and said cord (7) exiting from said channel at a position on said one loop portion opposite said other loop portion.
Claim 3
Dependent Claim
55 words
A prosthetic pericardium as claimed in claim 1 wherein the tube (6) comprises two equal-length portions (6', 6"), while the cord (7) comprises two portions (7', 7"), one of which is shorter and the other of which is longer than each of said equal length portions (6') of the tube (6) by the same length.
Claim 4
Dependent Claim
23 words
A prosthetic pericardium as claimed in claim 1 wherein said platelet is provided with holdes (10) for fixing electrodes (11) of a cardiostimulator.
References Cited (Backward Citations)
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Cited
US3513836A
Cited
US4497074A
Cited
FR2519544A1
Cited
US4536893A
Cited
SU1111752A1
Cited
US4690134A
Cited
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 |