Patent ID: 9743933
Date: 2017-08-29
CPC Classifications: A61B

Claim:
1. A release mechanism for a medical device, comprising: a bushing having a proximal end, a distal end and a channel extending therethrough, the bushing comprising first and second arms extending proximally from the distal end, the first and second arms being biased toward a release configuration in which engagement surfaces at distal ends thereof are retracted radially into the channel; a core pin insertable through the channel, the core pin being configured to apply a radially expansive pressure to move the arms radially outward from the release configuration into a locking configuration; and a tissue treatment device containing capsule connected to the bushing by engagement between the engagement surfaces of the first and second arms and a retaining surface of the capsule, the retaining surface of the capsule extending at an angle relative to the engagement surfaces selected so that a first portion of a force transmitted along an axis of the bushing to the first and second arms moves the arms radially inward toward the release configuration before a second portion of the force transmitted by the first and second arms to the capsule exceeds a threshold level at which the tissue treatment device in the tissue treatment device containing capsule dislodges from clipped tissue, the threshold level being approximately 0.947N.