Instrument tip assembly having self-threading back hub
AssigneeMicroline Surgical, Inc.
InventorsPaul David RYLL, Peter ALISKI
Life of this patent
Estimating the term…
Abstract
A actuating instrument including an instrument tip assembly having a yoke attachment thread. The actuating instrument also includes an actuator having an actuating shaft. The actuating shaft is provided with a first thread within the actuating shaft and a second thread provided on the actuating shaft. Further, the first thread is connected to the yoke attachment thread. Additionally, a back hub is provided at a proximal end of the instrument tip assembly and includes a rib or ribs provided on one of an inner surface and an outer surface of the back hub. The rib or ribs projecting from the one of the inner surface and the outer surface of the back hub and engages the second thread of the shaft to from an attachment thread.
Claims18
An actuating instrument, comprising:
- an instrument tip assembly having a yoke attachment thread;
- an actuator having an actuating shaft, the actuating shaft having a first thread provided within the actuating shaft and a second thread provided on the actuating shaft, wherein the first thread is connected to the yoke attachment thread;
- and
- a back hub provided at a proximal end of the instrument tip assembly, the back hub having a rib provided on one of an inner surface and an outer surface of the back hub,
- wherein the rib projects from the one of the inner surface and the outer surface of the back hub, and
- wherein the rib engages the second thread of the shaft to form an attachment thread.
An instrument tip assembly for an actuating instrument, the instrument tip assembly comprising:
- a yoke attachment thread provided at a proximal end of the instrument tip assembly, the yoke attachment thread configured to be connected to a first thread provided within an actuating shaft of an actuator of an actuating instrument;
- a back hub provided at a proximal end of the instrument tip assembly, the back hub having a rib provided on one of an inner surface and an outer surface of the back hub,
- wherein the rib projects from one of the inner surface and the outer surface of the back hub, and wherein the rib is configured to engage with a second thread provided on the actuating shaft to form an attachment thread.
A method of assembling an actuating instrument, the method comprising:
- providing an instrument tip assembly having a yoke attachment thread;
- providing an actuator having an actuating shaft, the actuating shaft having a first thread provided within the actuating shaft and second thread provided on the actuating shaft;
- providing a back hub at a proximal end of the instrument tip assembly, the back hub having a rib provided on one of an inner surface and an outer surface of the back hub, wherein the rib projects from the one of the inner surface and the outer surface of the back hub;
- screwing the first thread onto the yoke attachment thread such that the back hub is drawn towards a proximal end of actuating shaft and the rib progressively engages the second thread of the shaft, thereby deforming the rib to form an attachment thread.
Dependencies are inferred from the claim text.