US 12,329,434 B2
Balloon catheter and electrophysiological system
Qiancheng Zhao, Shanghai (CN); Bo Liang, Shanghai (CN); Yunzhu Xi, Shanghai (CN); Jiaqiang Jiang, Shanghai (CN); and Yiyong Sun, Shanghai (CN)
Assigned to SHANGHAI MICROPORT EP MEDTECH CO., LTD., Shanghai (CN)
Appl. No. 17/427,497
Filed by SHANGHAI MICROPORT EP MEDTECH CO., LTD., Shanghai (CN)
PCT Filed Dec. 27, 2019, PCT No. PCT/CN2019/129030
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2020/155978, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 201910100650.6 (CN), filed on Jan. 31, 2019; and application No. 201910182459.0 (CN), filed on Mar. 12, 2019.
Prior Publication US 2022/0008111 A1, Jan. 13, 2022
Int. Cl. A61B 18/02 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 2018/00255 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00797 (2013.01); A61B 2018/00815 (2013.01); A61B 2018/00821 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0262 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A balloon catheter, comprising:
a catheter body;
a double layered balloon disposed at a distal end of the catheter body, the double layered balloon comprising an inner layer balloon and an outer layer balloon covering the inner layer balloon;
at least one temperature measuring element disposed within a space between the inner and outer layer balloons; and
at least one adsorption element physically adsorbing and connecting both the temperature measuring element and the inner or outer layer balloon, so as to attach the temperature measuring element to the inner or outer layer balloon,
wherein the adsorption element is displaceable relative to the inner or outer layer balloon to which the adsorption element is attached when the double layered balloon is deformed and also allows the temperature measuring element to displace relative to the inner or outer layer balloon to which the adsorption element is attached, and
wherein when the adsorption element physically adsorbs and connects the inner layer balloon, the adsorption element covers an entire surface of the temperature measuring element that is away from the inner layer balloon in an axial direction of the double layered balloon, or wherein when the adsorption element physically adsorbs and connects the outer layer balloon, the adsorption element covers an entire surface of the temperature measuring element that is away from the outer layer balloon in an axial direction of the double layered balloon,
wherein the adsorption element has a thickness of 100 μm or less and a width ranging from 0.2 mm to 3.0 mm.