CN212913325U

CN212913325U - Threaded working sleeve

Info

Publication number: CN212913325U
Application number: CN202020498756.4U
Authority: CN
Inventors: 游勤光
Original assignee: Individual
Current assignee: Maoyu Qingdao Medical Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-04-09
Anticipated expiration: 2030-04-08

Abstract

A thread type working sleeve, which relates to the technical field of medical instruments; it comprises a U-shaped handle, a handle lock catch, a thread-shaped sleeve, a working end, a windowing and an endoscope implantation hole; the U-shaped handle is provided with a handle lock catch, the U-shaped handle is connected with the threaded sleeve, the end part of the threaded sleeve is provided with a working end, and the end part of the working end is provided with a window; an endoscope implantation hole is formed in the center of the U-shaped handle; the total length L1 of the U-shaped handle, the threaded sleeve and the working end is more than or equal to 5mm and less than or equal to L1 and less than or equal to 200 mm. Screw thread type work sleeve pipe, solve sheathed tube slip problem, the utility model has the advantages of simple structure, set up reasonable, the cost of manufacture low.

Description

Threaded working sleeve

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to screw thread type work sleeve pipe.

Background

With the aging of the Chinese population becoming faster and a large number of patients suffering from the central spinal stenosis, the traditional method usually adopts an open surgery mode to reduce the pressure of the central spinal canal and perform internal fixation and fusion operations on the spinal column. The operation has the disadvantages of large wound to the patient and slow recovery of the patient. At present, a great number of doctors have started to perform endoscopic surgery to reduce the pressure in the central spinal canal, even to perform endoscopic fusion. Endoscopic surgical procedures are often: puncturing by a puncture needle, expanding step by step, placing a working sleeve, and finally placing an intervertebral foramen mirror to start decompression and the like. The working sleeve which is arranged in the intervertebral foramen endoscope is a working sleeve with a smooth outer surface on the market at present, the smooth working sleeve completely meets the requirements of clinicians when the intervertebral foramen endoscope operation is carried out on a lateral way, but the operation is carried out on the centrum spinal stenosis almost in a way of back access, and the smooth working sleeve is adopted, so that the sliding of the sleeve is easy to occur, and the trouble is caused to the surgeons. The reason for this is that the muscle of the back of the anatomy of the human body is thinner than the muscle of the side, and the thinner muscle can not fix the smooth working cannula well, which causes the sliding of the cannula during the operation of the doctor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, reasonable in design, convenient to use's screw thread type work sleeve to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a U-shaped handle, a handle lock catch, a thread-shaped sleeve, a working end, a windowing and an endoscope implantation hole; the U-shaped handle is provided with a handle lock catch, the U-shaped handle is connected with the threaded sleeve, the end part of the threaded sleeve is provided with a working end, and the end part of the working end is provided with a window; an endoscope implantation hole is formed in the center of the U-shaped handle; the total length L1 of the U-shaped handle, the threaded sleeve and the working end is more than or equal to 5mm and less than or equal to L1 and less than or equal to 200 mm.

Furthermore, the distance L2 between the beginning of one thread and the next thread on the thread-type sleeve is 2 mm-L2-10 mm.

Furthermore, the distance L3 between two threads on the thread type sleeve is more than or equal to 1mm and less than or equal to L3 and less than or equal to 9 mm.

Furthermore, the inner diameter of the endoscope implantation hole of the U-shaped handle is D3, and D3 is not less than 6.5mm and not more than 22 mm.

Furthermore, the external diameter D1 of the threaded part of the threaded sleeve is more than or equal to 8mm and less than or equal to D1 and less than or equal to 25mm, and the external diameter D2 of the unthreaded part is more than or equal to 7.5mm and less than or equal to D2 and less than or equal to 23.5 mm.

After the structure is adopted, the utility model discloses the beneficial effect who produces does: screw thread type work sleeve pipe, solve sheathed tube slip problem, the utility model has the advantages of simple structure, set up reasonable, the cost of manufacture low.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a partial enlarged view of the threaded bushing of the present invention;

FIG. 3 is a structural view of the U-shaped handle of the present invention;

fig. 4 is a horizontal structure view of the present invention.

Description of reference numerals:

the endoscope comprises a U-shaped handle 1, a handle lock catch 2, a threaded sleeve 3, a working end 4, a fenestration 5 and an endoscope implantation hole 6.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Referring to fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the endoscope comprises a U-shaped handle 1, a handle lock catch 2, a thread-shaped sleeve 3, a working end 4, a windowing 5 and an endoscope implantation hole 6; the U-shaped handle 1 is provided with a handle lock catch 2, the U-shaped handle 1 is connected with a threaded sleeve 3, the end part of the threaded sleeve 3 is provided with a working end 4, and the end part of the working end 4 is provided with a window 5; an endoscope implantation hole 6 is arranged in the center of the U-shaped handle 1; the total length L1 of the U-shaped handle 1, the threaded sleeve 3 and the working end 4 is more than or equal to 5mm and less than or equal to L1 and less than or equal to 200mm, and the endoscope implantation hole 6 is implanted into an endoscope for working; the T-shaped working sleeve matched with the endoscope can be implanted to perform an operation; the length of the endoscope is different, the length of the pipeline can be changed correspondingly, and the operation can be normally carried out from 5mm to 200mm

The distance L2 between the screw-thread type casing 3 from one screw thread to the next screw thread is 2 mm-10 mm-2 mm, and the size of L2 can be changed properly to perform the operation normally.

The distance L3 between two threads on the thread-shaped sleeve 3 is more than or equal to 1mm and less than or equal to L3 and less than or equal to 9mm, and the size of L3 can be properly changed to normally carry out the operation.

The inner diameter of the endoscope implantation hole 6 of the U-shaped handle 1 is D3, the inner diameter D3 is more than or equal to 6.5mm and less than or equal to 22mm, the inner diameter D3 is used for matching different instruments and endoscopes, and operations can be performed on D3 from 6.5mm to 22 mm.

The external diameter D1 of the threaded part of the threaded sleeve 3 is more than or equal to 8mm and less than or equal to D1 and less than or equal to 25mm, the external diameter D2 of the unthreaded part is more than or equal to 7.5mm and less than or equal to D2 and less than or equal to 23.5mm, D1 is from 8mm to 25mm, D2 is from 7.5mm to 23.5mm, and the windowing part 5 adopts a flat opening or other forms, so that the operation can be performed.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Screw thread type work sleeve pipe, its characterized in that: it comprises a U-shaped handle, a handle lock catch, a thread-shaped sleeve, a working end, a windowing and an endoscope implantation hole; the U-shaped handle is provided with a handle lock catch, the U-shaped handle is connected with the threaded sleeve, the end part of the threaded sleeve is provided with a working end, and the end part of the working end is provided with a window; an endoscope implantation hole is formed in the center of the U-shaped handle; the total length L1 of the U-shaped handle, the threaded sleeve and the working end is more than or equal to 5mm and less than or equal to L1 and less than or equal to 200 mm.

2. The threaded work sleeve of claim 1, wherein: the distance L2 between the beginning of one thread and the next thread on the thread-type sleeve is 2 mm-10 mm-2 mm.

3. The threaded work sleeve of claim 1, wherein: the distance L3 between two threads on the thread-type sleeve is more than or equal to 1mm and less than or equal to L3 and less than or equal to 9 mm.

4. The threaded work sleeve of claim 1, wherein: the inner diameter of the endoscope implantation hole of the U-shaped handle is D3, and D3 is not less than 6.5mm and not more than 22 mm.

5. The threaded work sleeve of claim 1, wherein: the external diameter D1 of the threaded part of the threaded sleeve is more than or equal to 8mm and less than or equal to D1 and less than or equal to 25mm, and the external diameter D2 of the unthreaded part is more than or equal to 7.5mm and less than or equal to D2 and less than or equal to 23.5 mm.