US 12,329,436 B2
Cauterization device for sealing pleural layers
Jordan Addison, Gilbert, AZ (US); Oladipo Peter Akerele-Ale, Phoenix, AZ (US); Eric Moll, Gilbert, AZ (US); and Alexander Palmer, Scottsdale, AZ (US)
Assigned to Bard Peripheral Vascular, Inc., Franklin Lakes, NJ (US)
Appl. No. 17/781,200
Filed by Bard Peripheral Vascular, Inc., Franklin Lakes, NJ (US)
PCT Filed Dec. 3, 2019, PCT No. PCT/US2019/064240
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/112828, PCT Pub. Date Jun. 10, 2021.
Prior Publication US 2023/0013276 A1, Jan. 19, 2023
Int. Cl. A61B 18/00 (2006.01); A61B 18/08 (2006.01)
CPC A61B 18/082 (2013.01) [A61B 2018/00101 (2013.01); A61B 2018/00541 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/0072 (2013.01); A61B 2018/00821 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cauterization device, comprising:
a handpiece configured to be grasped by a user, the handpiece including a housing, a heat control circuit, and a control switch, the control switch configured to selectively actuate the heat control circuit;
a cannula having a cannula lumen, a cannula side wall surrounding the cannula lumen, a cannula proximal end portion, and a cannula distal end, the cannula proximal end portion being coupled to the housing of the handpiece;
a stylet having a shaft portion and a distal heat conductive body, the shaft portion and the distal heat conductive body together are formed as a unitary structure of a single piece construction, wherein the stylet is made of a biocompatible metal, the distal heat conductive body being electrically coupled to the heat control circuit, the distal heat conductive body having a first end and a second end, and having a tapered portion that distally terminates at the second end, the shaft portion being at least partially located in, and extending through, the cannula lumen without contacting the cannula side wall to provide a cantilevered support for the distal heat conductive body; and
an insulator member having an annular body that defines an opening that receives the shaft portion of the stylet, the insulator member positioned between the cannula distal end and the distal heat conductive body to thermally separate the cannula distal end from the distal heat conductive body of the stylet.