Biopsy system having a single use loading unit operable with a trocar driver, a knife driver and firing module
AssigneeTyco Healthcare Group LP
InventorFrank Viola
Life of this patent
Estimating the term…
Abstract
A biopsy system for retrieving biopsy tissue samples from different regions of the body is disclosed. The biopsy system includes a single use loading unit having a trocar assembly and a knife assembly. A trocar driver is operably connected to the trocar assembly and is actuable to move a trocar between retracted and advanced positions. The trocar driver is disengaged from the trocar assembly prior to firing the trocar into a target tissue mass to reduce drag on the trocar during firing. A knife driver is operably connected to the knife assembly such that when actuated, a knife is both rotatably and axially advanced about the trocar.
Claims7
A biopsy system which comprises:
- a loading unit which includes a trocar defining a tissue receiving basket, and a knife;
- a trocar driver operatively associated with the trocar between an engaged configuration and a disengaged configuration such that the trocar and the trocar driver may move independent of one another, the trocar driver being actuable to move the trocar between advanced and retracted positions;
- a knife driver operatively associated with the knife and being actuable to move the knife between retracted and advanced positions;
- and
- a firing module operatively associated with the trocar and adapted to advance the trocar into a targeted tissue mass when the trocar driver and the trocar are configured in the disengaged configuration.
Dependencies are inferred from the claim text.