US 11,696,742 B2
Ultrasonic probe with connecting butt joint portion, torque transmitting portion, plug portion, and sheath portion
Changgeng Liu, Shanghai (CN); and Hang Yan, Shanghai (CN)
Assigned to Sehngsuo Biotech(Shanghai)Corp. Ltd., Shanghai (CN)
Appl. No. 16/611,479
Filed by Shengsuo Biotech(Shanghai)Corp.Ltd., Shanghai (CN)
PCT Filed May 21, 2019, PCT No. PCT/CN2019/087865
§ 371(c)(1), (2) Date Nov. 7, 2019,
PCT Pub. No. WO2020/228053, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 201910409931.X (CN), filed on May 16, 2019.
Prior Publication US 2021/0290199 A1, Sep. 23, 2021
Int. Cl. A61B 8/00 (2006.01); A61B 8/12 (2006.01); A61B 1/00 (2006.01)
CPC A61B 8/445 (2013.01) [A61B 8/12 (2013.01); A61B 8/4422 (2013.01); A61B 1/00064 (2013.01); A61B 1/00112 (2013.01); A61B 1/00142 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An ultrasonic probe, comprising:
a connecting butt joint portion;
a torque transmitting portion; and
a sheath assembly, including:
a plug portion; and
a sheath portion,
wherein one end of the plug portion is used for detachably and fixedly connecting with the connecting butt joint portion;
a sheath connecting portion of the plug portion is fixedly connected to one end of the sheath portion; and
an inside of the plug portion communicates with an inside of the sheath portion to receive the torque transmitting portion,
wherein the plug portion and the sheath portion of the sheath assembly are connected to each other;
the connecting butt joint portion is detachably and fixedly connected to the plug portion; and
a fixed end of the torque transmitting portion is fixedly connected in the connecting butt joint portion, and a transducer end of the torque transmitting portion extends through the connecting butt joint portion and the plug portion to enter the sheath portion,
wherein the plug portion comprises a first locking portion and a fixing portion, one end of the fixing portion defines a recess, one end of the first locking portion is fixed to a bottom portion of the recess, and an inner sidewall of the recess has a first threaded structure to realize the detachably-fixed connection with the connecting butt joint portion through threaded engagement, and the first locking portion extends from the bottom portion of the recess and beyond an edge of the first threaded structure,
the first locking portion has an internal hollow structure, an inside of the first locking portion communicates with an inside of the sheath portion, and the first threaded structure surrounds the first locking portion,
the first locking portion is a truncated cone structure, and an outer sidewall of the first locking portion has a taper shape, such that the first locking portion is received inside the connecting butt joint portion and is fixedly connected to the connecting butt joint portion by taper self-locking.