US 11,998,232 B2
Therapeutic device, therapeutic system and therapeutic method for myocardium repair
Zhenjun Zi, Hangzhou (CN); Nan Shao, Hangzhou (CN); Jingjing Hu, Hangzhou (CN); Liwen Liu, Hangzhou (CN); Xiaotong Zeng, Hangzhou (CN); and Ji Zheng, Hangzhou (CN)
Assigned to DEKE MEDTECH (HANGZHOU) INC., Hangzhou (CN)
Appl. No. 17/044,241
Filed by DEKE MEDTECH (HANGZHOU) INC., Hangzhou (CN)
PCT Filed Mar. 29, 2019, PCT No. PCT/CN2019/080586
§ 371(c)(1), (2) Date Sep. 30, 2020,
PCT Pub. No. WO2019/185049, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 201810286470.7 (CN), filed on Mar. 30, 2018.
Prior Publication US 2021/0121200 A1, Apr. 29, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61M 5/00 (2006.01); A61M 5/46 (2006.01); A61M 25/00 (2006.01)
CPC A61B 17/34 (2013.01) [A61B 17/00234 (2013.01); A61M 5/00 (2013.01); A61M 5/46 (2013.01); A61M 25/0041 (2013.01); A61M 25/0084 (2013.01); A61B 2017/00243 (2013.01); A61B 2017/00247 (2013.01); A61M 2025/0089 (2013.01); A61M 2202/0007 (2013.01); A61M 2210/125 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A therapeutic device for myocardial repair, comprising:
a treatment needle for piercing into a myocardium to release therapeutant, which comprises:
a needle body, which has a therapeutant delivery chamber inside thereof, and
a needle head, which is located at a distal end of the needle body for piercing the myocardium and guiding the needle body to pass through the myocardium, wherein the needle head has a delivery therapeutant outlet that communicates with the therapeutant delivery chamber, and
a pulling wire,
wherein the pulling wire is movably provided in the needle body, and wherein a distal end of the pulling wire is connected to the needle head, and a proximal end of the pulling wire extends out of the needle body and functions as a force applying end for pulling the needle head to change an orientation thereof;
a fixed handle which has an intermediate chamber inside thereof, and
wherein a proximal end of the needle body is inserted into the fixed handle in a sealing manner, and the therapeutant delivery chamber of the needle body communicates with the intermediate chamber; and the proximal end of the pulling wire extends out of a proximal end of the fixed handle;
a sealing cap provided at the proximal end of the fixed handle, and
wherein the pulling wire passes through the sealing cap from the needle body through the intermediate chamber and engages with the sealing cap in a movable and sealing manner.