Combined dissecting, cauterizing, and stapling device
View Patent ↗A medical device for simultaneously cutting tissue with a heating element, cauterizing the tissue with sealing elements, and stapling the tissue together. The heating elements comprise bipolar RF electrodes.
1. A device for cutting and sealing a lumen, comprising:
an insertion rod;
a first jaw and a second jaw extending from the insertion rod, the first and second jaws being operable to allow closure of the first and second jaws relative to each other, the first jaw having a first grasping face and the second jaw having a second grasping face, the first grasping face and the second grasping face aligned to meet each other upon closure of the first and second jaws, wherein:
the first jaw comprises:
a first heating element disposed on the first grasping face along a longitudinal axis of the first jaw;
a second heating element disposed on the first grasping face and spaced from and parallel to the first heating element;
a first clip retainer configured to removably hold a generally rounded clip in a position parallel to the first and second heating elements; and
a second clip retainer configured to removably hold a generally rounded clip in a position parallel to the first clip retainer; and
the second jaw comprises:
a first arcuate anvil configured to engage an end of and narrow about the lumen a diameter of the generally rounded clip held by the first clip retainer; and
a second arcuate anvil configured to engage an end of and narrow about the lumen a diameter of the generally rounded clip held by the second clip retainer.
2. The device according to claim 1 , wherein the first jaw further comprises a third heating element disposed on the first grasping face opposite the second heating element.
3. The device according to claim 2 , wherein the third heating element is parallel to the first and second heating elements.
4. The device according to claim 2 , wherein the third heating element is heatable to a temperature higher than a temperature of the first and second heating elements.
5. The device according to claim 1 , wherein the third heating element is disposed between the first and second heating elements.
6. The device according to claim 1 , wherein the arcs created by the respective first and second arcuate anvils extend into a majority of the thickness of the second jaw.
7. The device according to claim 1 , wherein respective chords of the arcs created by the first and second arcuate anvils extend in a direction parallel to a longitudinal axis of the second jaw.
8. The device according to claim 1 , wherein the second jaw is configured to hold a single clip retainer along a longitudinal axis of the second jaw.
9. The device according to claim 1 , wherein the first and second heating elements are positioned between the first and second clip retainers.
10. The device according to claim 1 , wherein the second jaw further comprises a resilient anvil positioned between the first and second arcuate anvils.
11. The device according to claim 1 , wherein the first and second arcuate anvils are aligned in a width direction of the first jaw.
12. The device according to claim 1 , further comprising an actuator configured to upwardly drive a clip removably held by one of the first and second clip retainers toward the second jaw.