Handle and cartridge system for medical interventions
An apparatus for transferring mechanical energy in a handle to a cartridge to manipulate tissue or anatomical structures within the body of a human or animal subject for the purpose of treating diseases or disorders.
1. A cartridge for a system that includes a handle and the cartridge, where the handle is configured to accept a series of such cartridges and impart mechanical energy to the cartridge to deliver an implant, comprising:
a cartridge body coupled to a shaft assembly having a long axis;
a distal portion of the shaft assembly having a lumen running through the distal portion, the lumen having a lumen radius of curvature defined by a distal lumen wall and the curving of the lumen as it runs in a first direction parallel to the long axis to a second direction transverse to the long axis;
a needle assembly slidably disposed within the shaft assembly and the cartridge body and having a needle defining a needle distal portion such that the needle distal portion is configured to exit the shaft assembly from an exit port at which the lumen terminates, the needle distal portion having a needle radius of curvature defined by the curving of the needle as it runs in a first direction parallel to the long axis to run in a second direction transverse to the long axis, where the lumen radius of curvature and the needle radius of curvature are different; and
a cutout on the shaft assembly located at least partially proximal to the exit port through which the needle distal portion is configured to exit, the cutout comprising an opening between the lumen and an exterior of the shaft configured to allow at least part of the needle distal portion to flex therethrough.
2. The cartridge of claim 1 , wherein the distal lumen wall comprises a partial exit wall and a second cutout.
3. The cartridge of claim 1 , wherein the distal lumen wall is curved.
4. The cartridge of claim 1 , wherein at least a portion of the distal lumen wall is straight.