US 12,115,068 B2
Protection and loading device for interventional valve system
Shengping Zhong, Jiangsu (CN); Chunwang Meng, Jiangsu (CN); and Bo Zhang, Jiangsu (CN)
Assigned to KINGSTRONBIO (CHANGSHU) CO., LTD, Jiangsu (CN)
Appl. No. 17/627,764
Filed by KINGSTRONBIO (CHANGSHU) CO., LTD, Jiangsu (CN)
PCT Filed May 13, 2019, PCT No. PCT/CN2019/086568
§ 371(c)(1), (2) Date Jan. 17, 2022,
PCT Pub. No. WO2020/186609, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 201920331042.1 (CN), filed on Mar. 15, 2019.
Prior Publication US 2022/0280294 A1, Sep. 8, 2022
Int. Cl. A61F 2/24 (2006.01); A61F 2/966 (2013.01); A61M 39/10 (2006.01)
CPC A61F 2/2436 (2013.01) [A61F 2/243 (2013.01); A61F 2/966 (2013.01); A61M 39/1011 (2013.01); A61F 2230/0067 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A protection and loading device for an interventional valve system, comprising:
a first protector and a second protector that are capable of cooperating with each other, wherein the interventional valve system comprises a valve and a delivery system, wherein the valve is fixed on a distal rod body of the delivery system; and the first protector is configured to be located at a side close to the distal rod body and encompasses at least a half of the valve, and wherein the first protector comprises a first large-diameter portion, a first conical portion, and a first small-diameter portion that are arranged in sequence, the second protector comprises a second large-diameter portion, a second conical portion, and a second small-diameter portion that are arranged in sequence; and
a third protector configured to fix on and sleeve on the distal rod body, wherein the third protector comprises a sleeve and a locking member that comprises an upper fixing portion and a lower fixing portion; wherein the upper fixing portion comprises a first half-conical tube and a first head; the lower fixing portion comprises a second half-conical tube and a second head; the first half-conical tube and the second half-conical tube are snapped with each other, and then extend into the sleeve from thea second end of the sleeve; and the first head and the second head are snapped with each other;
wherein the protection and loading device is configured for use and to be moved to a protection state, the first protector cooperates with the third protector at a first position; and
wherein the protection and loading device is configured for use and to be moved to a state of valve loading, the first protector and the second protector are snapped with each other, and the first protector cooperates with the third protector at a second position while the second protector squeezes the valve, to assist a loading action of the delivery system to complete a loading of the valve, wherein the second position is farther away from the valve than the first position.