Arterial catherization device
First Claim
1. A surgical instrument for insertion into a blood-vessel lumen, said surgical instrument comprising a separable assembly of longitudinal sections in mating relationship, said longitudinal sections having first cooperating releasable interdigitation locking means for maintaining said longitudinal sections in their assembled relationship and releasable upon relative movement of said longitudinal sections, said longitudinal sections having second means cooperating to force apart and separate said longitudinal sections by further relative movement of said longitudinal sections.
1 Assignment
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Accused Products
Abstract
Disclosed is a surgical instrument for insertion into a blood-vessel lumen and comprises a separable assembly of longitudinal sections in mating relationship having tube and hub sections. Twisting movement of lateral separator tabs integral with the proximal ends of the hub sections effects relative movement to initially unlock releasable interdigitation locking means which the tube sections incorporate distally, and which the hub sections incorporate both distally and proximally, with such continued relative movement causing biased interfaces on the hub sections to cam open and force apart the longitudinal sections.
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Citations
21 Claims
- 1. A surgical instrument for insertion into a blood-vessel lumen, said surgical instrument comprising a separable assembly of longitudinal sections in mating relationship, said longitudinal sections having first cooperating releasable interdigitation locking means for maintaining said longitudinal sections in their assembled relationship and releasable upon relative movement of said longitudinal sections, said longitudinal sections having second means cooperating to force apart and separate said longitudinal sections by further relative movement of said longitudinal sections.
Specification