US5074858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for implantation of cardiac valvular prostheses
Assignee: Individual
•
Filing: 1990-01-26
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Granted: 1991-12-24
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Expires: 2010-01-26
Abstract
Abstract The support consists of an architectural functional unit made up of modules articulable in such a way that the unit is to be fixed to one of the branches of the sternal separator which is placed in the patient. Structurally the support includes a section (1) for securing the sternal separator from whose section a first module made up of a tube (3) and a telescopic rod (4) immovable by a radial screw (5) emerges. This module is followed by another one made up of a tube (7) joined to the end of the rod (4), tube which is a rotation support for a fourchet (8) to whose side branches grooved sections (9) through which grounds of suture thread (23) pass are fixed. The ends of the fourchet (8) bear a rotating tube in which a rod (15) to which the prosthesis itself (17) is secured is mounted in an inclined manner and a middle piece (18) is inserted.
Inventors
- 👤 Wilson Ramos Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2427; A61B; A61B17/00; A61B17/02; A61B17/04; A61B17/06; A61B17/06061
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
199 words
A support for a cardiac valvular prosthesis to be implanted in a patient and to be secured to one branch of a sternal separator placed on the patient, said support comprising: a substantially C-shaped section having spaced top and bottom branches for receiving the one branch of the sternal separator therebetween; an immobilizing screw for securing the one branch in said C-shaped section; a tube projecting from said top branch of said C-shaped section; a rod positioned telescopically in said tube for longitudinal and rotational movement relative thereto; a radial screw supported on said tube for immobilizing said rod in a selected position in said tube; a U-shaped section having a middle branch extending transverse to said rod and rotatably supported at a free end of said rod; two grooved members linked to end branches of said U-shaped section, respectively, for guiding suture threads; a ferrule mounted on each of said two grooved sections at the ends thereof remote from said middle branch; a tubular member rotatably supported in said ferrule; and a rod member extending transversely through said tubular member, rotatable and displaceable upward and downward therein, and having a downward end for supporting the cardiac valvular prosthesis.
Claim 2
Dependent Claim
199 words
A support for a cardiac valvular prosthesis to be implanted in a patient and to be secured to one branch of a sternal separator placed on the patient, said support comprising: a substantially C-shaped section having spaced top and bottom branches for receiving the one branch of the sternal separator therebetween; an immobilizing screw for securing the one branch in said C-shaped section; a tube projecting from said top branch of said C-shaped section; a rod positioned telescopically in said tube for longitudinal and rotational movement relative thereto; a radial screw supported on said tube for immobilizing said rod in a selected position in said tube; a U-shaped section having a middle branch extending transverse to said rod and rotatably supported at a free end of said rod; two grooved members linked to end branches of said U-shaped section, respectively, for guiding suture threads; a ferrule mounted on each of said two grooved sections at the ends thereof remote from said middle branch; a tubular member rotatably supported in said ferrule; and a rod member extending transversely through said tubular member, rotatable and displaceable upward and downward therein, and having a downward end for supporting the cardiac valvular prosthesis.
Claim 3
Dependent Claim
36 words
A support according to claim 1 further comprising screw means supported on said middle branch for immobilizing said U-shaped section on the free end of said rod in a selected rotational position of said U-shaped section.
Claim 4
Dependent Claim
31 words
A support according to claim 2, further comprising a first side screw for immobilizing said tubular member and a second side screw for immobilizing said rod member in said tubular member.
Claim 5
Dependent Claim
67 words
A support according to claim 1, wherein said downward end of said rod member has a threaded portion, said support further comprising a middle piece having at one end thereof threaded means complementary to said threaded portion of said rod member for attaching said middle piece thereto and a threaded section at the other end thereof for connection to a rotator connected with the cardiac valvular prosthesis.
Claim 6
Dependent Claim
21 words
A support according to claim 1, wherein said two grooved members for guiding suture threads are widened towards said middle branch.
Claim 7
Dependent Claim
37 words
A support according to claim 5, further comprising a clamp having spaced clamping branches with plastic enveloping tubes for pressing the suture threads coming out of a respective groove member to prevent tangling of the suture threads.
References Cited (Backward Citations)
US3221743A
Cited
US4878494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |