CN213190030U

CN213190030U - Safe opening device for thoracolumbar vertebral pedicle

Info

Publication number: CN213190030U
Application number: CN202020756037.8U
Authority: CN
Inventors: 赵勇
Original assignee: Peoples Hospital of Baise
Current assignee: Peoples Hospital of Baise
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-05-14
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a chest lumbar vertebrae pedicle of vertebral arch safety way opener relates to medical instrument technical field, pedicle of vertebral arch safety way opener includes handle, handle pole, the handle pole is installed on the handle, is equipped with the scale on the outer wall of handle pole, and handle pole end detachable is connected with the head of opening a way of ball shape, and the handle pole increases progressively from the diameter of connecting the head of opening a way to handle department. The depth of the opening device into the hole is conveniently determined, and the cortex of the bone is prevented from being punctured.

Description

Safe opening device for thoracolumbar vertebral pedicle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to chest lumbar vertebrae pedicle of vertebral arch safety ware of opening a way.

Background

In minimally invasive spine surgery, a screw channel needs to be established by using a vertebral arch opener, and the screw channel is explored and opened for placing a pedicle screw, so that important tissues such as blood vessels, nerves, trachea, blood vessels and the like and visceral organs are distributed in front of a vertebral body of a human body, and serious consequences can be generated once the tissues or the visceral organs are damaged in the process of opening the vertebral arch root; the existing pedicle of vertebral arch ware of opening a way is difficult to confirm the depth while exploring, the depth of opening a way is finished only depending on the experience of the operator, difficult to guarantee the accuracy of opening a way; the diameters of the pedicles are different, the diameter of the end of the existing pedicle opener is fixed, and the existing pedicle opener is difficult to be suitable for the pedicle opening exploration with different diameters when the pedicle opener is used for exploration; and the head end of the existing pedicle of vertebral arch opener for exploration is a pointed end which is not protected and is easy to pierce the cortex of the bone.

In summary, the following problems exist at present when performing a pedicle opening:

1. the existing pedicle of vertebral arch ware of opening a way is difficult to confirm the degree of depth when surveying, and the degree of depth of opening a way only relies on the art to accomplish by experience, is difficult to guarantee the accuracy of opening a way.

2. The diameters of the pedicles are different, the diameter of the end of the existing pedicle opener is fixed, and the pedicle opener is difficult to be suitable for the pedicle opening exploration with different diameters when the pedicle opener is used for exploring.

3. The head end of the existing pedicle of vertebral arch opening device for exploration is a pointed end which is not protected and is easy to pierce through the cortex of the bone.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed a chest lumbar vertebrae pedicle of vertebral arch safety circuit breaker, the degree of depth in the circuit breaker access hole is conveniently confirmed, prevents to impale the cortex lycii.

In order to solve the above technical problem and achieve the above technical effect, the utility model discloses a following technical content realizes:

the utility model provides a chest lumbar vertebrae pedicle of vertebral arch safety ware of opening way, includes handle, handle pole, the handle pole is installed on the handle, is equipped with the scale on the outer wall of handle pole, and handle pole end detachable is connected with the head that opens a way of ball shape, and the handle pole increases progressively from the end of connecting the head that opens a way to the diameter of handle department.

Further, the handle has elasticity.

Furthermore, be equipped with the blind hole in the end that the handle was kept away from to the handle pole, the inner wall of blind hole is equipped with the internal thread, open circuit overhead connecting rod that is equipped with, connecting rod constitute for two cylinders of coaxial coupling and diameter difference, and the external diameter of the cylinder of directly connecting with the head of opening a circuit is unanimous with the end external diameter that the handle was kept away from to the handle pole, is equipped with the external screw thread on the cylinder outer wall of indirectly connecting with the head of opening a circuit and installs in the blind.

Furthermore, the open circuit head is provided with different specifications, and the diameter is 1mm-3 mm.

The utility model has the advantages that:

1. the scale is arranged on the handle rod, so that the entering depth of the pedicle of vertebral arch opener can be determined, and the tissue or visceral organs can be prevented from being damaged due to too deep opening of the pedicle of vertebral arch opener.

2. Through setting up the head of opening a way of ball form, and the handle pole has elasticity, opens a way along the pulp cavity under the head guide of opening a way, and the head of opening a way of ball form can prevent to pierce through the cortex and the sharp point injury tissue around when taking out the ware of opening a way.

3. The open-circuit heads with different specifications and detachable replacement are suitable for the pedicles with different diameters.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

Fig. 1 is a schematic view of the overall structure of the thoracolumbar vertebral pedicle safety circuit breaker of the present invention;

fig. 2 is a schematic structural view of the open head and the end of the handle rod of the thoracolumbar vertebral pedicle safety opener of the utility model;

in the drawings, the components represented by the respective reference numerals are listed below:

1-handle, 2-handle rod, 3-scale, 4-open head, 5-connecting rod, 6-blind hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

For a clearer description of the present invention, the following description is made with reference to specific embodiments:

examples

Referring to fig. 1-2, a thoracolumbar vertebral pedicle safety road-opener comprises a handle 1 and a handle rod 2, wherein the handle rod 2 is installed on the handle 1, the outer wall of the handle rod 2 is provided with scales 3, so that the entering depth of the vertebral pedicle road-opener can be determined, the tissue or visceral organs are prevented from being damaged by the too-deep road-opener, the end of the handle rod 2 is detachably connected with a spherical road-opener head 4, the road-opener head 4 is provided with different specifications, and the diameter of the handle rod 2 from the end connected with the road-opener head 4 to the handle 1 is increased progressively; the shank 2 is elastic. The opening is led by the opening head 4 along the medullary cavity, and the spherical opening head 4 can prevent the cortical bone from being pierced and the tip from damaging the surrounding tissue when the opening device is taken out.

A blind hole 6 is formed in the end, far away from the handle 1, of the handle rod 2, an internal thread is formed in the inner wall of the blind hole 6, a connecting rod 5 is arranged on the open circuit head 4, the connecting rod 5 is formed by two cylinders which are coaxially connected and have different diameters, the outer diameter of the cylinder directly connected with the open circuit head is consistent with the outer diameter of the end, far away from the handle, of the handle rod, and an external thread is arranged on the outer wall of the cylinder indirectly connected with the open circuit head 4 and installed; the open circuit heads 4 with different specifications are convenient to disassemble and assemble, and the open circuit heads 4 are smoothly connected with the ends of the handle rod 2.

The diameter of the open head 4 is 1mm-3 mm.

The utility model relates to a chest lumbar vertebrae pedicle of vertebral arch safety ware of opening a way during use specifically uses and is: when the instrument is used, the open-circuit depth is determined through the scales on the handle rod, the spherical open-circuit head can prevent cortex lycii from being pierced in the open-circuit process, and surrounding tissues are prevented from being damaged when the open-circuit device is taken out; when the open-circuit head is replaced, the appropriate open-circuit head is selected according to the diameter of the pedicle of vertebral arch, one end of the connecting rod with the threads is rotatably installed in the blind hole, and then the open-circuit operation is carried out.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a thoracolumbar vertebrae pedicle of vertebral arch safety way of opening ware which characterized in that: the handle is arranged on the handle, scales are arranged on the outer wall of the handle, the end of the handle is detachably connected with a spherical open-circuit head, and the diameter of the handle is gradually increased from the end connected with the open-circuit head to the handle.

2. The thoracolumbar pedicle safety circuit breaker according to claim 1, which is characterized in that: the handle has elasticity.

3. The thoracolumbar pedicle safety circuit breaker according to claim 1, which is characterized in that: the handle is characterized in that a blind hole is formed in the end, away from the handle, of the handle rod, an internal thread is formed in the inner wall of the blind hole, a connecting rod is arranged on the open circuit head, the connecting rod is composed of two cylinders which are coaxially connected and have different diameters, the outer diameter of the cylinder which is directly connected with the open circuit head is consistent with the outer diameter of the end, away from the handle, of the handle rod, and an external thread is arranged on the outer wall of the cylinder which is indirectly connected with.

4. The thoracolumbar pedicle safety circuit breaker according to claim 3, characterized in that: the opening head is provided with different specifications, and the diameter is between 1mm and 3 mm.