Spring action medical device

摘要

A spring action medical device includes a spring that may propel a hammer component in a distal direction when the spring is released from a loaded state. When propelled forward by the spring, the hammer component makes contact with a distal tip of the medical device. The distal tip may then transfer a force to an external object, such as an occlusion in a body lumen.

主权项

1. A medical device, comprising:
a body portion; a distal tip disposed at a distal end of the body portion; a spring; a support structure on an inner surface of the body portion; and a hammer component disposed between the distal tip and the spring, wherein the hammer component is movable relative to the distal tip between a first position and a second position, wherein the hammer component is spaced apart from the distal tip in the first position, and wherein the hammer component is in contact with the distal tip in the second position; a trigger wire coupled with the hammer component in a configuration where movement of the trigger wire in a proximal direction relative to the body portion retracts the hammer component and compresses the spring into a loaded state between the hammer component and the support structure; wherein the spring is configured to provide a force when released from a loaded state to propel the hammer component in a distal direction from the first position to the second position to strike the distal tip with the hammer component; wherein the distal tip is movable relative to the body portion in response to the hammer component striking the distal tip.