Cervical vertebra gun type reduction forceps and working method thereof
阅读说明：本技术 颈椎枪式复位钳及其工作方法 (Cervical vertebra gun type reduction forceps and working method thereof ) 是由 吴建明 李颖强 何志远 于 2019-12-02 设计创作，主要内容包括：本发明属于医疗器械技术领域,具体涉及一种颈椎枪式复位钳及其工作方法。本颈椎枪式复位钳包括：内套筒、外套筒以及与内套筒连接的联动机构；所述联动机构适于带动内套筒沿外套筒向后移动,且内套筒前端的夹持部进入外套筒内以使夹持部夹紧颈椎钉。本发明的颈椎枪式复位钳及其工作方法,能够夹持住颈椎钉以便于手术时更容易对颈椎钉进行旋入、固定等操作,为手术提供了便利。(The invention belongs to the technical field of medical instruments, and particularly relates to a cervical vertebra gun type reduction forceps and a working method thereof. This cervical vertebra gun type pincers that reset includes: the linkage mechanism is connected with the inner sleeve; the linkage mechanism is suitable for driving the inner sleeve to move backwards along the outer sleeve, and the clamping part at the front end of the inner sleeve enters the outer sleeve to enable the clamping part to clamp the cervical vertebra nail. The gun-type cervical vertebra reduction forceps and the working method thereof can clamp the cervical vertebra nails so as to facilitate operations such as screwing, fixing and the like of the cervical vertebra nails during operation, and provide convenience for the operation.)
1. The utility model provides a cervical vertebra gun type pincers that reset which characterized in that includes:
the linkage mechanism is connected with the inner sleeve;
the linkage mechanism is suitable for driving the inner sleeve to move backwards along the outer sleeve, and the clamping part at the front end of the inner sleeve enters the outer sleeve to enable the clamping part to clamp the cervical vertebra nail.
2. The gun-type cervical vertebra reduction forceps of claim 1,
the link gear includes: the first sliding block, the second sliding block, the first clamp handle and the second clamp handle are respectively hinged with the first sliding block and the second sliding block;
the first clamp handle and the second clamp handle are connected through a hinge;
the first sliding block and the second sliding block are both U-shaped sliding blocks; and
the first sliding blocks are clamped in grooves symmetrically arranged on the outer wall of the outer sleeve;
the second sliding blocks are clamped in sliding holes symmetrically arranged on the outer wall of the outer sleeve;
and the first and second clamp handles are pressed, and the second sliding block approaches the first sliding block so as to drive the inner sleeve to move backwards along the outer sleeve along the sliding hole.
3. The gun-type cervical vertebra reduction forceps of claim 2,
the first sliding block and the second sliding block are connected with a guide rail in a penetrating mode.
4. The gun-type cervical vertebra reduction forceps of claim 2,
a trigger mechanism is arranged at the hinged position of the first and second clamp handles;
the trigger mechanism includes: the trigger, the torsion spring for resetting and the positioning rack;
the trigger is pressed to enable the clamping teeth on the trigger to be clamped on the positioning rack so as to fix the opening and closing sizes of the first clamp handle and the second clamp handle.
5. The gun-type cervical vertebra reduction forceps of claim 2,
and a reset mechanism is arranged between the first forceps handle and the second forceps handle.
6. The gun-type cervical vertebra reduction forceps of claim 5,
the reset mechanism includes: resetting the spring piece;
the two sides of the reset spring piece are respectively abutted against the inner sides of the first and second clamp handles.
7. The gun-type cervical vertebra reduction forceps of claim 1,
the clamping part is provided with a clamping groove matched with the head of the cervical vertebra nail.
8. The gun-type cervical vertebra reduction forceps of claim 7,
the front end of the outer sleeve is matched with the radian of the opening of the clamping part.
9. The gun-type cervical vertebra reduction forceps of claim 8,
the diameter of the clamping part is larger than the inner diameter of the outer sleeve, so that when the inner sleeve moves backwards along the outer sleeve, the clamping part enters the outer sleeve to be folded to clamp the cervical vertebra nail.
10. A working method of a gun-type cervical vertebra reduction forceps is characterized by comprising the following steps:
the inner sleeve moves backwards along the outer sleeve, and the clamping part at the front end of the inner sleeve enters the outer sleeve so that the clamping part clamps the cervical vertebra nail.
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a cervical vertebra gun type reduction forceps and a working method thereof.
Background
The pathological changes of cervical vertebra are mostly degeneration, stenosis, hyperosteogeny, instability and the like which are common clinical pathological symptoms, and can affect the daily life, work, life quality and the like of patients in serious cases. The operation treatment by adopting the posterior cervical vertebra fixing operation is one of the effective treatment methods at present, and the nail body of the cervical vertebra nail needs to be implanted into the cervical vertebra and fixed with the cervical vertebra during the operation.
Because of the adoption of minimally invasive surgery, the incision is small, and the operations such as screwing, fixing and the like of the cervical vertebra nail are difficult to perform in the surgery.
Disclosure of Invention
The invention aims to provide a cervical vertebra gun type reduction forceps and a working method thereof, and cervical vertebra nails can be better fixed through a linkage mechanism.
In order to solve the technical problem, the invention provides a cervical vertebra gun type reduction forceps, which comprises:
the linkage mechanism is connected with the inner sleeve;
the linkage mechanism is suitable for driving the inner sleeve to move backwards along the outer sleeve, and the clamping part at the front end of the inner sleeve enters the outer sleeve to enable the clamping part to clamp the cervical vertebra nail.
Further, the linkage mechanism includes: the first sliding block, the second sliding block, the first clamp handle and the second clamp handle are respectively hinged with the first sliding block and the second sliding block;
the first clamp handle and the second clamp handle are connected through a hinge;
the first sliding block and the second sliding block are both U-shaped sliding blocks; and
the first sliding blocks are clamped in grooves symmetrically arranged on the outer wall of the outer sleeve;
the second sliding blocks are clamped in sliding holes symmetrically arranged on the outer wall of the outer sleeve;
and the first and second clamp handles are pressed, and the second sliding block approaches the first sliding block so as to drive the inner sleeve to move backwards along the outer sleeve along the sliding hole.
Furthermore, the first sliding block and the second sliding block are connected with a guide rail in a penetrating way.
Furthermore, a trigger mechanism is arranged at the hinged position of the first and second clamp handles;
the trigger mechanism includes: the trigger, the torsion spring for resetting and the positioning rack;
the trigger is pressed to enable the clamping teeth on the trigger to be clamped on the positioning rack so as to fix the opening and closing sizes of the first clamp handle and the second clamp handle.
Furthermore, a reset mechanism is arranged between the first forceps handle and the second forceps handle.
Further, the reset mechanism includes: resetting the spring piece;
the two sides of the reset spring piece are respectively abutted against the inner sides of the first and second clamp handles.
Furthermore, the clamping part is provided with a clamping groove matched with the head of the cervical vertebra nail.
Furthermore, the front end of the outer sleeve is matched with the opening radian of the clamping part.
Furthermore, the diameter of the clamping part is larger than the inner diameter of the outer sleeve, so that when the inner sleeve moves backwards along the outer sleeve, the clamping part enters the outer sleeve to be folded to clamp the cervical vertebra nail.
In another aspect, the invention further provides a working method of the gun-type cervical vertebra reduction forceps, which comprises the following steps:
the inner sleeve moves backwards along the outer sleeve, and the clamping part at the front end of the inner sleeve enters the outer sleeve so that the clamping part clamps the cervical vertebra nail.
The gun-type cervical vertebra reduction forceps and the working method thereof have the advantages that the inner sleeve is driven by the linkage mechanism to move backwards along the outer sleeve, so that the cervical vertebra nails are clamped by the clamping part at the front end of the inner sleeve, the cervical vertebra nails are fixed, the cervical vertebra nails can be conveniently screwed, fixed and the like in an operation, and convenience is brought to the operation.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front view of a gun-type reduction forceps for cervical vertebrae of the present invention;
fig. 2 is a perspective view of the gun-type reduction forceps for cervical vertebrae of the present invention.
In the figure:
the clamp comprises an inner sleeve 1, a
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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