CN213406128U

CN213406128U - Sheath pipe

Info

Publication number: CN213406128U
Application number: CN202021511839.9U
Authority: CN
Inventors: 江晓兵; 梁德; 何嘉辉; 张鹏; 唐晶晶; 崔健超; 任辉
Original assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Current assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-06-11
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to the technical field of medical equipment, a sheath pipe is disclosed, it includes sheath pipe body and handle, and the one end of sheath pipe body is equipped with the tongue board portion that extends forward, and tongue board portion is used for cutting the end plate, and the length of tongue board portion is 9 ~ 15mm, and the one end that the tongue board portion was kept away from to the sheath pipe body is located to the handle. Based on the structure, the tongue plate part is narrower, and the occupied space of the tongue plate part is smaller than that of the sheath tube body, so that the moving range of the endoscope and other surgical instruments is not easily limited by the tongue plate part, namely the front end of the sheath tube, and meanwhile, the length of the tongue plate part is longer than that of the end part of the existing sheath tube, so that the tongue plate part can block tissues in a larger range, the moving range of the endoscope and other surgical instruments is favorably expanded, and the operation difficulty and risk of the operation are reduced; in addition, the tongue plate part is sharp, and the end plate can be cut, so that the step of replacing surgical instruments is omitted, the surgical time is greatly shortened, and the surgical efficiency is improved.

Description

Sheath pipe

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a sheath pipe.

Background

The lumbar degenerative disease is a general name of lumbar degenerative disc disease, unstable degeneration, stenosis, spondylolisthesis and lateral curvature, is mainly clinically manifested as lumbocrural pain, and is a common disease and a frequently encountered disease in spinal surgery. For patients with surgical indications, safe and effective decompression fusion is often the key to treatment, and therefore, endoscopic fusion surgery, which is one of effective means for treating lumbar degenerative diseases, is increasingly emerging.

Generally, a sheath tube is implanted into a lumbar intervertebral foramen to serve as a working channel in an endoscopic fusion operation, so that a spinal endoscope and other surgical instruments can be conveniently implanted into a lumbar part from the sheath tube and an operation can be performed; in addition, during surgery, the surgeon often requires partial removal of the endplates of the vertebral bodies. The front end of the existing sheath tube is wider, the sheath tube occupies larger space when being implanted into the lumbar intervertebral foramen, and the front end of the existing sheath tube is shorter, so that the tissues outside the tube which can be blocked are limited, and the moving range of an endoscope and other surgical instruments in the spinal canal is too small; in addition, the end plate can not be processed at the wider front end of the sheath tube, and additional surgical instruments such as blue forceps and nucleus pulposus forceps are required to be used for cutting and clamping the end plate, so that the operation time is greatly prolonged, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sheath pipe which has a narrow and long front end and can cut an end plate.

In order to achieve the above object, the present invention provides a sheath tube, which includes:

the sheath tube comprises a sheath tube body, wherein one end of the sheath tube body is provided with a tongue plate part extending forwards, the tongue plate part is used for cutting an end plate, and the length of the tongue plate part is 9-15 mm;

the handle is arranged at one end, far away from the tongue plate part, of the sheath tube body.

In some embodiments of the present application, the tongue plate portion is an arcuate plate.

In some embodiments of the present application, the cross-sectional area of the tongue portion gradually decreases from the end connecting the sheath body to the end away from the sheath body.

In some embodiments of the present application, an end of the tongue plate portion distal from the sheath body is serrated.

In some embodiments of the present application, an end of the tongue plate portion remote from the sheath body is a forward convex arc.

In some embodiments of the present application, the handle includes a cylindrical portion and a holding portion, the cylindrical portion is annular and connected to an end of the sheath body away from the tongue portion, and the holding portion is rod-shaped and disposed on an outer wall of the cylindrical portion and extends in a radial direction of the cylindrical portion.

In some embodiments of the present application, the number of the holding portions is two, and the two holding portions are symmetrically disposed on the outer wall of the cylindrical portion.

In some embodiments of the present application, the outer wall of the sheath body is provided with distance scales, and the distance scales are arranged at equal intervals along the axial direction of the sheath body.

In some embodiments of the present application, the inner diameter of the sheath body is 8-12 mm.

In some embodiments of the present application, the length of the tongue plate portion is 10-12 mm.

The utility model provides a sheath pipe, compared with the prior art, its beneficial effect lies in:

the utility model provides a sheath pipe includes sheath pipe body and handle, and the one end of sheath pipe body is equipped with the tongue board portion that extends forward, and tongue board portion is used for cutting the end plate, and the length of tongue board portion is 9 ~ 15mm, and the one end that tongue board portion was kept away from to the sheath pipe body is located to the handle. Based on the structure, the tongue plate part is narrower, and the occupied space of the tongue plate part is smaller than that of the sheath tube body, so that the moving range of the endoscope and other surgical instruments is not easily limited by the tongue plate part, namely the front end of the sheath tube, and meanwhile, the length of the tongue plate part is longer than that of the end part of the existing sheath tube, so that the tongue plate part can block tissues in a larger range, the moving range of the endoscope and other surgical instruments is favorably expanded, and the operation difficulty and risk of the operation are reduced; in addition, the tongue plate part is sharp, and the end plate can be cut, so that the step of replacing surgical instruments is omitted, the surgical time is greatly shortened, and the surgical efficiency is improved.

Drawings

Fig. 1 is a partial cross-sectional view of a sheath according to an embodiment of the present invention;

fig. 2 is a side view of a sheath according to an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a sheath according to another embodiment of the present invention;

fig. 4 is a side view of a sheath according to another embodiment of the present invention.

In the figure: 1. a sheath body; 11. distance scales; 2. a tongue plate portion; 3. a handle; 31. a cylindrical portion; 32. a grip portion.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 and 2, an embodiment of the present invention provides a sheath, which includes a sheath body 1 and a handle 3, wherein one end of the sheath body 1 is provided with a tongue portion 2 extending forward, the tongue portion 2 is used for cutting an end plate, the length of the tongue portion 2 is 9-15 mm, and the handle 3 is disposed at one end of the sheath body 1 away from the tongue portion 2.

Based on the structure, the tongue plate part 2 is narrower, and the occupied space of the tongue plate part is smaller than that of the sheath tube body 1, so that the moving range of an endoscope and other surgical instruments is not easily limited by the tongue plate part 2, namely the front end of the sheath tube, and meanwhile, the length of the tongue plate part 2 is longer than that of the end part of the existing sheath tube, so that the tongue plate part 2 can block tissues in a larger range, the moving range of the endoscope and other surgical instruments is favorably expanded, and the operation difficulty and risk of the operation are reduced; in addition, the tongue plate part 2 is sharp, and can cut the end plate, so that the step of replacing surgical instruments is omitted, the surgical time is greatly shortened, and the surgical efficiency is improved.

Alternatively, as shown in fig. 2, in some embodiments, the tongue portion 2 is an arcuate plate. So, the curved setting makes tongue board portion 2 better and the pipe wall phase-match of sheath pipe body 1, and the tongue board portion 2 of still being convenient for carries out the rotary-cut to the end plate, is favorable to improving the efficiency of cutting the end plate.

Alternatively, as shown in fig. 1, 2 and 3, in some embodiments, the cross-sectional area of the tongue plate portion 2 gradually decreases from the end connected to the sheath body 1 to the end distant from the sheath body 1. Based on this, tongue portion 2 is changeed in stretching into in the lumbar vertebrae intervertebral space, and the tongue portion 2 is kept away from the one end of sheath pipe body 1 and is shared for a shorter and longer space, is convenient for scope and other surgical instruments further to enlarge the home range, improves the efficiency of operation.

Alternatively, as shown in fig. 1, in some embodiments, the end of the tongue plate portion 2 remote from the sheath body 1 is serrated. Based on this, the end of the tongue plate part 2 far away from the sheath tube body 1 is sharper, so that the difficulty of cutting the end plate is reduced, and the end plate can be cut in a rotary manner quickly.

Alternatively, as shown in fig. 3 and 4, in other embodiments, the end of the tongue plate portion 2 remote from the sheath body 1 is in an arc shape protruding forward. Thus, the end of the tongue plate part 2 far away from the sheath tube body 1 is smoother, is suitable for different operation and patient conditions, and can reduce pain of patients.

Alternatively, as shown in fig. 1, in some embodiments, the handle 3 includes a cylindrical portion 31 and a holding portion 32, the cylindrical portion 31 has a ring shape and is connected to an end of the sheath body 1 away from the tongue portion 2, and the holding portion 32 has a rod shape and is provided on an outer wall of the cylindrical portion 31 and extends in a radial direction of the cylindrical portion 31. Based on this, the column part 31 enhances the stability of the connection between the sheath tube body 1 and the handle 3, and enhances the strength of the handle 3. The sheath is easier to operate by the grip 32, and the user can pull the grip 32 to perform a rotary cutting operation.

Alternatively, as shown in fig. 1, in some embodiments, the two holding portions 32 are provided, and the two holding portions 32 are symmetrically provided on the outer wall of the cylindrical portion 31. Based on this, the symmetrical arrangement of the holding portion 32 is more ergonomic, and is convenient for the user to hold and exert force.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the sheath body 1 is provided with distance scales 11 on the outer wall thereof, the distance scales 11 are arranged at equal intervals in the axial direction of the sheath body 1, and the distance scales 11 display a value of the length of the distance scales 11 from the end of the tongue plate portion 2 away from the sheath body 1. Based on this, the user can observe the degree of depth that sheath pipe body 1 stretched into in the lumbar vertebrae position directly perceivedly, is convenient for accurate control sheath pipe body 1's removal.

Optionally, as shown in FIG. 1, in some embodiments, the inner diameter of the sheath body 1 is 8-12 mm. Based on this, sheath pipe body 1 can adapt to different kinds of curettes and other surgical instruments, is applicable to multiple operation condition and patient's condition.

Optionally, as shown in FIG. 1, in some embodiments, the length of the tongue plate portion is 10-12 mm. So, the length dimension of tongue portion makes tongue portion better and lumbar vertebrae intervertebral space phase-match when guaranteeing to block a wider range tissue.

The embodiment of the utility model provides a method for using of sheath pipe does: the handle 3 is pushed, the tongue plate part 2 is inserted along the operation opening, the sheath tube body 1 is implanted into the lumbar intervertebral foramen, and an endoscope and other surgical instruments can reach the operation part through the lumen of the sheath tube body 1; when the end plate needs to be cut in a rotary manner, the holding part 32 is pulled, so that the tongue plate part 2 rotates around the axial direction of the sheath tube body 1 and cuts the end plate, and after the end plate is cut, the holding part 32 is pulled, so that the sheath tube body 1 is separated from the operation opening.

To sum up, the embodiment of the utility model provides a sheath, it mainly comprises sheath body 1 and handle 3, and the one end of sheath body 1 is equipped with tongue portion 2 that extends forward, and tongue portion 2 is used for cutting the end plate, and the length of tongue portion 2 is 9 ~ 15mm, and handle 3 locates the one end that sheath body 1 kept away from tongue portion 2. Compared with the prior art, the sheath tube has the advantages of narrow and long front end, capability of cutting end plates and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A sheath, comprising:

2. The sheath of claim 1, wherein:

the tongue plate portion is an arc-shaped plate.

3. The sheath of claim 1, wherein:

the cross-sectional area of the tongue plate portion gradually decreases from the end connected with the sheath tube body to the end away from the sheath tube body.

4. The sheath of claim 1, wherein:

one end of the tongue plate part, which is far away from the sheath tube body, is in a sawtooth shape.

5. The sheath of claim 1, wherein:

one end of the tongue plate part, which is far away from the sheath tube body, is in an arc shape protruding forwards.

6. The sheath of claim 1, wherein:

the handle includes barrel portion and portion of gripping, the barrel portion is the annular, its connect in the sheath pipe body is kept away from the one end of tongue portion, the portion of gripping is shaft-like, and it is located on the outer wall of barrel portion and along the radial extension of barrel portion.

7. The sheath of claim 6, wherein:

the number of the holding parts is two, and the two holding parts are symmetrically arranged on the outer wall of the column part.

8. The sheath of claim 1, wherein:

the sheath tube is characterized in that distance scales are arranged on the outer wall of the sheath tube body and are arranged at equal intervals along the axial direction of the sheath tube body.

9. The sheath of claim 1, wherein:

the internal diameter of sheath pipe body is 8 ~ 12 mm.

10. The sheath of claim 1, wherein:

the length of the tongue plate part is 10-12 mm.