Sternal closure clamp device
First Claim
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1. A sternal closure clamp device comprising:
- a central body;
four independently actuated engagement members, each comprising a telescoping arm member having a longitudinal axis and a projection member, two of said engagement members mounted on a first side of said central body and the other two of said engagement members mounted on a second side of said central body, wherein said arm members of said first side engagement members are positioned such that said first side arm member longitudinal axes are non-parallel to each other and wherein said arm members of said second side engagement member are positioned such that said second side arm member longitudinal axes are non-parallel to each other;
wherein each of said engagement members are independently retractable toward said central body and independently extendable away from said central body; and
engagement member locking means for securing said engagement members in a fixed retracted position relative to said central body, said engagement member locking means being releasable such that said engagement members are extendable from said retracted position.
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Abstract
A sternal closure clamp device for securing and retaining longitudinally divided halves of a sternum, the device having four laterally extending engagement members that are positioned in inter-rib spaces on both sides of the sternum. The engagement members are connected to a centralized main body in a manner that allows the engagement members to be shortened or contracted such that the sternal halves may be pressed together and held in abutting relation. Each of the engagement members contracts in a direction non-perpendicular to the sternal incision, and the engagement members on a given side are non-parallel to each other such that device has a generally X-shaped configuration.
62 Citations
16 Claims
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1. A sternal closure clamp device comprising:
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a central body; four independently actuated engagement members, each comprising a telescoping arm member having a longitudinal axis and a projection member, two of said engagement members mounted on a first side of said central body and the other two of said engagement members mounted on a second side of said central body, wherein said arm members of said first side engagement members are positioned such that said first side arm member longitudinal axes are non-parallel to each other and wherein said arm members of said second side engagement member are positioned such that said second side arm member longitudinal axes are non-parallel to each other; wherein each of said engagement members are independently retractable toward said central body and independently extendable away from said central body; and engagement member locking means for securing said engagement members in a fixed retracted position relative to said central body, said engagement member locking means being releasable such that said engagement members are extendable from said retracted position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sternal closure clamp device configured to secure a sternum longitudinally divided into first and second sternal halves in abutting relationship, said device comprising:
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a central body; four independently actuated engagement members slidingly received by said central body in a manner whereby each of said engagement members can be retracted toward said central body, each said engagement member comprising a telescoping arm member having a longitudinal axis and a projection member extending generally perpendicularly from each said arm member, two of said engagement members mounted on a first side of said central body and the other two of said engagement members mounted on a second side of said central body, wherein said arm members of said first side engagement members are positioned such that said first side arm member longitudinal axes are non-parallel to each other and with said first side projection members configured to be disposed on opposite sides of a rib of said first sternal half, and wherein said arm members of said second side engagement members are positioned such that said second side arm member longitudinal axes are non-parallel to each other and with said second side projection members configured to be disposed on opposite sides of a rib of said second sternal half; wherein each of said engagement members are independently retractable toward said central body and independently extendable away from said central body; and engagement member locking means for securing said engagement members in a fixed retracted position relative to said central body, said engagement member locking means being releasable such that said engagement members are extendable from said retracted position. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification