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EP0200419A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Two-piece heart valve holder-rotator

Assignee: HEMEX SCIENTIFIC Inc
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Filing: 1986-04-16
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Granted: —
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Expires: 2006-04-16
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Abstract

Abstract @ A two-piece heart valve holder engageable by a separate handle for positioning and rotating the heart valve. The holder includes a cylindrically-shaped plug member (10) that has a recessed shoulder (21) at one end sized to frictionally engage the inside surface of the body of the heart valve prosthesis (12). The other end of the cylindrical plus is in the form of a V-shaped seat (30). Two passages (25) extend through the plug member and a wall (27) projects upwardly from the peruphery of the seat adjacent each of the passages. A separate grip member (11) includes two legs 924), each sized in length to extend through the passageways (25) in the plug member. The two legs each include a base member (25) to which each leg is respectively connected at an angle inward from the outer edge of the base member. The two base members are hinged (31) together with the legs biased outwardly, and each leg has an outwardly projecting foot (28) at the distal end thereof. To secure a heart valve prosthesis (12) fitted on the recessed shoulder (21) of the plug member, the legs (24) of the grip member are inserted into the passageways (25) of the plug member. When the upper ends of the legs engage the walls of the upper ends of the passages, the legs are cammed outwardly so that the legs are substantially parallel with the axis of the plug member and the feet (28) on each leg engage the edge of the valve body of the prosthesis to prevent its removal from the plug member. Once the prosthesis is sutured in place, the grip member is released by lifting a tab (45) that extends upwardly from one of the base members.

Inventors

  • 👤 Richard Lowell Martin

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 18:28
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0095; A61F2/02; A61F2/24; A61F2/2427

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 60 words
A device for holding a heart valve prosthesis during implantation comprising plug means for receiving the heart valve prosthesis; releasable grip means cooperable with said plug means to selectively secure the heart valve prosthesis to said plug means or release said prosthesis therefrom; and handle means cooperable with said plug means for positioning the heart valve prosthesis during implantation thereof.
Claim 2
Independent Claim 60 words
A device for holding a heart valve prosthesis during implantation comprising plug means for receiving the heart valve prosthesis; releasable grip means cooperable with said plug means to selectively secure the heart valve prosthesis to said plug means or release said prosthesis therefrom; and handle means cooperable with said plug means for positioning the heart valve prosthesis during implantation thereof.
Claim 3
Dependent Claim 38 words
The device of Claim 1 wherein the releasable grip means includes two leg members pivotally connected to each other and each having feet means that engage the heart valve prosthesis to secure said prosthesis to said plug means.
Claim 4
Dependent Claim 68 words
The device of Claim 1 or Claim 2 wherein the heart valve has an annular valve body with upward- and downward-facing surfaces, said plug means has a generally downward-facing surface for receiving the upward-facing surface of the valve body; said grip means engages the downward-facing surface of the valve body; and means for releasing said grip means from said plug means while said handle means is engaged therewith.
Claim 5
Dependent Claim 189 words
The device of Claim 1 wherein said plug means is substantially cylindrically-shaped having a recessed shoulder at one end sized to fit within the inside surface of the body of the heart valve prosthesis, a seat at the end of the plug means opposite the recessed shoulder, the plug means having two passages therethrough extending between the two ends of the plug means and parallel with the longitudinal axis thereof, wall means projecting upwardly from the periphery of the seat adjacent each passageway, and means for receiving said handle means; and said grip means includes two legs, each sized in length to extend through the passageways in the plug means, each leg depending from a base member, the base members being resiliently hinged together, each leg having an outwardly extending end so that when the legs of the grip are placed through the passageways of the plug, the legs move radially outwardly, the outwardly extending ends engaging the edge of the heart valve prosthesis to secure the same to the plug means and being maintained in such position by a camming force exerted thereupon by the projecting wall means.
Claim 6
Dependent Claim 17 words
The device of Claim 4 wherein the legs are inherently biased outward toward their prosthesis engaging position.
Claim 7
Dependent Claim 39 words
The device of Claim 4 or Claim 5 in which at least one of the base members of the grip means includes an upwardly extending tab to facilitate retraction of the grip means upon pulling upwardly on the tab.
Claim 8
Independent Claim 49 words
The device of any of Claims 1 to 6 wherein the plug means includes a hole coaxial with the axis of the plug for receiving the handle means, the base members of the grip means having a hole therethrough to provide access to the hole in the plug means.
Claim 9
Independent Claim 49 words
The device of any of claims 1 to 6 wherein the plug means includes two slots on the outside thereof and lying in a plane perpendicular to the axis of the plug means, for receiving locking and stabilizing means in the enclosure for shipping the assembled prosthesis and holder.
Claim 10
Dependent Claim 234 words
The device of Claim 1 wherein said plug means is substantially cylindrically-shaped having a recessed shoulder at one end sized to frictionally engage the inside surface of the body of the heart valve prosthesis, a V-shaped seat at the end of the plug means opposite the recessed shoulder, the plug means having two passages therethrough extending between the two ends of the plug means and parallel with the longitudinal axis thereof, wall means projecting upwardly from the periphery of the seat adjacent each passageway and means for receiving said handle means,and said grip means includes two legs, each sized in length to extend through the passageways in the plug means, each leg depending from a base member, the base members being hinged together, with the outer edge of each leg being angled inwardly from the outer edge of its base member at an angle substantially equal to the angle between each half of the V-shaped seat and a plane perpendicular to the longitudinal axis of the plug means, each leg having an outwardly extending end so that when the legs of the grip are placed through the passageways in the plug, the legs move radially outwardly, and the outwardly extending ends engaging the edge of the heart valve prosthesis to secure the same to the plug means and being maintained in such position by a camming force exerted thereupon by the projecting wall means.

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