Patent ID: 9039723
Filing Date: 2015-05-26
Classification: A61B

Abstract:
1. A device comprising: a housing having an interior with an axis; an instrument slidably retained within the housing and movable along the axis between a first position wherein a functional tip of the instrument extends outside the housing and a second position wherein the functional tip is disposed within the housing; a mechanical control to move the instrument from the second position to the first position, wherein the mechanical control includes a plunger; a locking mechanism configured to secure the instrument against movement toward the second position with a locking force when the instrument is in the first position and a force is applied to the functional tip of the instrument along the axis and toward the housing, wherein the locking force increases with the force applied to the functional tip, the locking mechanism further configured to release the instrument to move toward the second position when the force is removed; and a biasing mechanism that biases the instrument toward the second position, wherein the biasing mechanism includes a coil spring coupled to the plunger and the housing.