CN-115120845-B - Medical device and locking device thereof

CN115120845BCN 115120845 BCN115120845 BCN 115120845BCN-115120845-B

Abstract

The invention relates to a medical device and a locker thereof, wherein the locker comprises a first locking piece, a second locking piece and a clamping piece, the first locking piece is provided with a first inner cavity and a first perforation which are communicated, the second locking piece is provided with a second inner cavity and a second perforation which are communicated, the second locking piece is in threaded connection with the first locking piece, the first inner cavity and the second inner cavity jointly form a mounting cavity, the clamping piece comprises a pipe body and a clamping head connected with the pipe body, the clamping piece is arranged in the mounting cavity, two ends of the pipe body are respectively communicated with the first perforation and the second perforation, and when the second locking piece rotates relative to the first locking piece to squeeze the clamping piece, the clamping head clamps the pipe body along the radial direction. According to the medical device and the locker thereof, when the second locking piece rotates relative to the first locking piece, the clamping head clamps the pipe body along the radial direction, so that the clamping head can be used for stably clamping the guide wire which sequentially passes through the first perforation, the pipe body and the second perforation, and the guide wire is locked.

Inventors

TAN SHIZHENG
REN ZHICHAO
Fan bibo
WANG ZHONGMING
ZHANG YUNSHENG
WANG LIWEN
YUAN ZHENYU

Assignees

上海蓝脉医疗科技有限公司

Dates

Publication Date: 20260508
Application Date: 20220720

Claims (12)

1. A locking device for a locking device of a vehicle, characterized by comprising the following steps: the first locking piece is provided with a first inner cavity and a first perforation which are communicated; The second locking piece is provided with a second inner cavity and a second through hole which are communicated, the second locking piece is in threaded connection with the first locking piece, and the first inner cavity and the second inner cavity form an installation cavity together; The clamping piece comprises a pipe body and a clamping head connected to the pipe body, the clamping piece is arranged in the installation cavity, two ends of the pipe body are respectively communicated with the first through hole and the second through hole, when the second locking piece rotates relative to the first locking piece to extrude the clamping piece, the clamping head clamps the pipe body along the radial direction, the clamping head comprises a plurality of clamping parts which are distributed at intervals around a clamping axis, the clamping parts are connected with the pipe body, the clamping parts are protruded out of the outer peripheral side wall of the pipe body and are protruded out of the inner peripheral side wall of the pipe body, the locking piece comprises a positioning piece, the positioning piece is sleeved on the pipe body and is propped against one side of the clamping head facing the pipe body, the positioning piece comprises a sleeved connection part and a supporting part, the sleeved connection part is sleeved on the pipe body, and the supporting part is propped against the peripheral side wall of the installation cavity.
2. A locker according to claim 1, characterised in that at least part of the gripping portion is provided with serrations on the gripping surface of the gripping portion.
3. A lock according to claim 1, wherein the collet has a contact surface for receiving a compressive force, the contact surface being frustoconical in shape and tapering in diameter away from the body.
4. A locker according to claim 1 or claim 3 wherein the end face of the collet is rounded and provided with a chamfer for contact with either the first or second locking member.
5. The retainer of claim 1, wherein the gripping members are double-ended gripping members having 2 gripping heads, the 2 gripping heads being located at opposite ends of the tubular body and being in contact with the first retaining member and the second retaining member, respectively, the 2 gripping heads being radially gripped relative to the tubular body by the first retaining member and the second retaining member, respectively, when the second retaining member is rotated relative to the first retaining member to compress the gripping members.
6. The locker of claim 5 wherein said first locking member is formed with a first abutment surface and said second locking member is formed with a second abutment surface, said first abutment surface and said second abutment surface being conical or frustoconical and respectively contacting 2 of said jaws.
7. The retainer of claim 1, wherein said gripping member is a single-ended gripping member having 1 said collet positioned at one of said ends of said tubular body.
8. The retainer of claim 7, wherein said collet is in contact with said first retaining member and is capable of radially gripping against said tubular body under compression of said first retaining member.
9. The retainer of claim 7, wherein said collet is in contact with said second retaining member and is capable of radially gripping against said tubular body under compression of said second retaining member.
10. The locker of claim 7 wherein said locker comprises 2 said clamps, wherein said collet of one of said clamps is in contact with said first locker and wherein said collet of the other of said clamps is in contact with said second locker.
11. The retainer of claim 7, wherein said retainer includes 2 of said clamps, said tubular bodies of 2 of said clamps being coaxially disposed and in communication with each other, wherein said collet of one of said clamps is in contact with said first retaining member and wherein said collet of the other of said clamps is in contact with said second retaining member.
12. A medical device comprising a locker according to any one of claims 1 to 11.

Description

Medical device and locking device thereof Technical Field The invention relates to the technical field of medical equipment, in particular to a medical device and a locker thereof. Background In vascular interventional therapy and surgical procedures, guidewire consumables and medical devices with indwelling wires are often used, and a longer portion of such devices are left outside the body of the patient for a longer period of time and are easily moved. At present, in the operation process, the devices such as a guide wire, a retention wire and the like which are left outside a patient body are scattered on an operation table freely. In the related art, a locker is provided on a part of the apparatus to lock the wire. However, the problem that the locking force is insufficient and the use requirement of the instrument is not met still exists, so that the locking fixation fails and the pulling displacement is generated. Therefore, this patent has designed a seal wire locker structure, utilizes screw structure rotation control metal chuck to press from both sides tight metal seal wire or keep somewhere the silk, provides the anticipated locking force that satisfies the product operation requirement, and this structure can be furnished with specific connection structure simultaneously, can cooperate with other medical instrument to use, solves the current situation that current locking force is not enough. Disclosure of Invention Based on the above, a medical device and a locker thereof are provided to solve the problem of insufficient locking force. In one aspect, the present invention provides a locker comprising: the first locking piece is provided with a first inner cavity and a first perforation which are communicated; The second locking piece is provided with a second inner cavity and a second through hole which are communicated, the second locking piece is in threaded connection with the first locking piece, and the first inner cavity and the second inner cavity form an installation cavity together; The clamping piece comprises a pipe body and a clamping head connected to the pipe body, the clamping piece is arranged in the installation cavity, two ends of the pipe body are respectively communicated with the first through hole and the second through hole, and when the second locking piece rotates relative to the first locking piece to extrude the clamping piece, the clamping head clamps together relative to the pipe body along the radial direction. In one embodiment, the clamping head comprises a plurality of clamping parts which are arranged at intervals around a clamping axis, the clamping parts are connected with the pipe body, and when the clamping head is pressed to clamp the pipe body in the radial direction, the clamping parts are mutually close to each other in the radial direction. In one embodiment at least part of the clamping portion is provided with serrations on the surface of the clamping portion for clamping. In one embodiment, the chuck is provided with a contact surface, the contact surface is used for receiving extrusion force, the shape enclosed by the contact surface is in a truncated cone shape, and the diameter of the chuck gradually decreases in the direction away from the pipe body; And/or the end face of the chuck is round and is provided with a chamfer, and the chamfer is used for being in contact with the first locking piece or the second locking piece. In one embodiment, the clamping member is a double-ended clamping member, and has 2 clamping heads, where the 2 clamping heads are respectively located at two ends of the pipe body and respectively contact with the first locking member and the second locking member, and when the second locking member rotates relative to the first locking member to extrude the clamping member, the 2 clamping heads are respectively clamped in a radial direction relative to the pipe body under the driving of the first locking member and the second locking member. In one embodiment, the first locking member is formed with a first supporting surface, the second locking member is formed with a second supporting surface, and the first supporting surface and the second supporting surface are both conical surfaces or circular truncated cone surfaces and are respectively contacted with 2 chucks. In one embodiment, the clamping member is a single-head clamping member having 1 of the clamping heads positioned at one of the ends of the tube. In one embodiment, the clamping head is contacted with the first locking piece and can be clamped against the pipe body in the radial direction under the extrusion of the first locking piece; or the clamping head is contacted with the second locking piece and can be clamped relative to the pipe body along the radial direction under the extrusion of the second locking piece; or the locker comprises 2 clamping members, wherein the clamping head of one clamping member is contacted with the first locking member, and the