Patent ID: 9636146
Date: 2017-05-02
CPC Classifications: A61B

Claim:
1. In a medical implant having a substantially cylindrical closure member and a receiver member having a first arm spaced from a second arm forming an open channel, the closure member having an axis of rotation for closing the open channel, an improvement comprising: a) first and second helically wound v-thread forms located on the closure member, the first helically wound v-thread form having a first start and the second helically wound v-thread form having a second start; and b) a first helically wound v-thread form on the first arm of the receiver member and a second helically wound v-thread form on the second arm of the receiver member opposite the first helically wound v-thread form and wherein simultaneous mating of the first start with the first helically wound v-thread form of the first arm and the second start with the second helically wound v-thread form of the first arm of the second arm occurs when the closure member is rotated between the first and second arms of the receiver member.