CN214907454U

CN214907454U - Anti-skidding nerve root retractor for spinal minimally invasive surgery

Info

Publication number: CN214907454U
Application number: CN202120618507.9U
Authority: CN
Inventors: 屈波; 潘显明; 滕长青; 刘青山
Original assignee: Fantuzi Technology Chengdu Co ltd; First Affiliated Hospital of Chengdu Medical College
Current assignee: Fantuzi Technology Chengdu Co ltd; First Affiliated Hospital of Chengdu Medical College
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-11-30
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a spinal column minimal access surgery is with neural root drag hook of antiskid, include the coupler body, stretch into section and the portion of gripping, the portion of gripping including grip the support section, grip the section and with the thumb of thumb looks adaptation according to the splenium, the coupler body, stretch into the section, grip the support section, grip section and thumb and press the splenium to connect gradually, stretch into to be equipped with in the section with guide bar complex spout, grip the support section slope and set up and stretch into the section and grip between the section, the axis that stretches into the section parallels with the axis that grips the section, and stretches into the section and grips the orientation of section opposite. The utility model discloses enable the nerve root nature by the parcel in the rear, prevent that the nerve root of protection from sliding and causing the damage. Meanwhile, the palm holding part adopts a semi-circular curve bent angle shape design, so that the hand-holding comfort is improved. The contact part of the thumb is designed to increase the contact area between the draw hook and the thumb, thereby increasing the pressure intensity in use and reducing the fatigue degree of holding for a long time.

Description

Anti-skidding nerve root retractor for spinal minimally invasive surgery

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a spinal column is anti-skidding nerve root drag hook for minimal access surgery.

Background

The nerve root retractor is an instrument necessary for neurosurgery and is used for drawing a compressed nerve root. The existing nerve root retractor is generally composed of a retractor and a handle, but is limited by the structure of the retractor, the nerve root retractor can not accurately control the traction force in the nerve root traction process, and if the nerve root traction distance is too small, the operative field is not fully exposed, and the operation can not be normally carried out; if the traction is too violent, the nerve root can be damaged, and certain inconvenience is brought to medical work.

The publication No. CN208492175U discloses a nerve root retractor for neurosurgery in 2019, 2, 15, which comprises a handle, a first connecting rod, a second connecting rod, a hollow sleeve rod, a force measuring spring, a pull rod and a traction head, one end of the handle is fixedly connected with a first connecting rod which is fixedly connected with a second connecting rod, the second connecting rod is obliquely arranged downwards, the lower end of the second connecting rod is provided with an external thread, the inner wall of one end of the hollow loop bar close to the second connecting rod is provided with an internal thread, the second connecting rod is in threaded connection with the hollow loop bar, the pull rod is inserted in the hollow loop bar and is in sliding connection with the inner wall of the hollow loop bar, the upper end of the pull rod and the lower end of the second connecting rod are respectively provided with a hanging ring, the two ends of the force measuring spring are respectively fixed on the corresponding hanging rings through a hook, and one side of the force measuring spring, which is close to the pull rod, is provided with an indicating needle. The retractor can display the tension on nerve roots and prevent the nerve roots from being damaged due to overexertion. However, the retractor is a nerve root retractor for neurosurgery, and cannot be applied to the existing spine endoscope minimally invasive surgery at all.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide a spinal column is anti-skidding nerve root drag hook for minimal access surgery, the utility model discloses can reduce the compulsory tractive to the nerve root when the operation, make the nerve root naturally wrapped up in at the rear, the nerve root that prevents the protection slides and causes the damage. Meanwhile, the palm holding part adopts a semi-circular curve bent angle shape design, so that the palm can be fitted more, and the hand holding comfort is improved. The matched pressing part is designed at the thumb contact part, so that the contact area between the draw hook and the thumb is increased, the pressure in use is increased, and the long-time holding fatigue is reduced.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a spinal column is anti-skidding nerve root drag hook for minimal access surgery which characterized in that: including the coupler body, stretch into the section and the portion of gripping, the portion of gripping including grip the support section, grip the section and press the splenium with the thumb of thumb looks adaptation, the coupler body, stretch into the section, grip the support section, grip the section and the thumb presses the splenium to connect gradually, stretch into be equipped with on the section with guide rod complex spout, grip the support section slope and set up stretching into between the section and the section of gripping, and stretch into the section and grip the opposite orientation of section.

The axis of the extending section is parallel to the axis of the holding section.

The thumb pressing part is provided with a concave arc pressing surface.

The holding part is of a flat structure, and the holding support section and the holding section are in arc transition.

The side surfaces of the holding part are in smooth transition.

The stretching-in section is of a flat structure, and the sliding groove is formed by inwards recessing the surface of the stretching-in section.

The side surfaces of the extending section are in smooth transition.

The holding part and the extending section are in arc transition.

Adopt the utility model has the advantages of:

1. the utility model discloses can reduce the compulsory tractive to the nerve root, make the nerve root naturally wrapped up in the rear, prevent that the nerve root of protection from sliding and causing the damage. Meanwhile, the palm holding part adopts a semi-circular curve bent angle shape design, so that the palm can be fitted more, and the hand holding comfort is improved. The matched pressing part is designed at the thumb contact part, so that the contact area between the draw hook and the thumb is increased, the pressure in use is increased, and the long-time holding fatigue is reduced.

2. The utility model provides a thumb presses the splenium to have sunken arc press surface, and the advantage of this structure is being convenient for the thumb to press to the nimble regulation of the drag hook of being convenient for, it is more laborsaving when being the nerve root tractive simultaneously.

3. The utility model discloses a portion of gripping of platykurtic structure to make each side smooth transition of it, its advantage lies in more according with human mechanics, possess better hand and hold the sense.

4. The utility model discloses a section of stretching into of platykurtic structure to directly form the spout through inside sunken, its advantage lies in making things convenient for the integration ware to slide into the intervertebral disc, effectively reduces the damage to human soft tissue when getting into human tissue.

5. The utility model discloses can not only be applied to the open operation of backbone, but also can be applied to in the present backbone scope minimal access surgery. It is not only a nerve root retractor protector, but also a fusion device placing channel.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic diagram of the structure viewed from the right side of the present invention.

Labeled as: 1. the hook body, 2, stretch into the section, 3, the portion of gripping, 4, the support section of gripping, 5, the section of gripping, 6, the thumb is according to the splenium, 7, spout.

Detailed Description

The utility model discloses a spinal column is anti-skidding nerve root drag hook for minimal access surgery, as shown in fig. 1, 2, it includes coupler body 1, stretches into section 2 and the portion of gripping 3, the portion of gripping 3 including the section of gripping 4 that connects gradually, the section of gripping 5 and thumb press the splenium 6, and grip and support section 4 and grip and have the angle between the section of gripping 5. The hook body 1, stretch into section 2, grip support section 4, grip section 5 and thumb press portion 6 and connect gradually, and wherein, the preferred integrated into one piece of whole drag hook makes, grips support section 4 and grip between the section 5 arc transition, grip portion 3 and stretch into between the section 2 arc transition. The thumb pressing part 6 is matched with a thumb and is provided with a concave arc pressing surface. Acting force is applied to the arc-shaped pressing surface through the thumb, so that the flexible adjustment of the draw hook is facilitated, and the labor is saved when the nerve root is drawn. The stretching section 2 is provided with a sliding chute 7 matched with the guide rod, and the stretching section 2 can enter the disc through the sliding chute 7. The holding support section 4 is obliquely arranged between the extending section 2 and the holding section 5, the extending section 2 and the holding section 5 are opposite in direction, and preferably, the axis of the extending section 2 is parallel to the axis of the holding section 5. Further, it is preferable that the angle between the grip supporting section 4 and the grip section 5 is 135 degrees.

In order to make the retractor have better means and more convenient operation, the utility model discloses preferably will the portion 3 that grips sets up to the platykurtic structure and will stretch into section 2 and be the platykurtic structure to make the equal smooth transition in each side of the portion 3 that grips and make each side smooth transition of the section 2 that stretches into.

Further, it is preferable that the sliding groove 7 is formed by inwardly recessing the surface of the protruding section 2.

The drag hook has been produced at present and is ready to use, and the concrete parameter of the drag hook of one of the specifications is:

the length of drag hook is about 4mm, and the length that stretches into section 2 is about 80mm, and the length of gripping portion 3 is about 164mm, and the length that grips support section 4 is about 55mm, and the length that grips section 5 is about 90mm, and the length and the width that thumb pressed the portion 6 are about 24 mm.

The utility model discloses the implementation principle when in-service use does:

1, when a fusion operation is performed under a single-lens full-endoscope, the extension section 2 is firstly made to cling to an endoscope working sleeve, and then the extension section slides downwards into the disc position along the working sleeve, so that the hook body 1 is pulled to block nerve roots under the visual condition under the endoscope, then the holding section is held by hand, the thumb presses the pressing part 6, and the fusion device enters the disc through the sliding chute 7.

2. When a lumbar fusion operation is performed under a double-channel full-endoscope, the stretching-in section 2 enters the intervertebral disc area along a skin incision, the hook body 1 is pulled to block nerve roots under the endoscope under the visual condition, the holding section is held by hands, the thumb presses the thumb pressing part 6, and the fusion device enters the intervertebral disc through the sliding groove 7.

Any feature disclosed in this specification may, unless stated otherwise, be replaced by alternative features serving the same, equivalent or similar purpose; all of the disclosed features, or all of the method or process steps, may be combined in any combination, except mutually exclusive features and/or steps.

Claims

1. The utility model provides a spinal column is anti-skidding nerve root drag hook for minimal access surgery which characterized in that: including coupler body (1), stretch into section (2) and the portion of gripping (3), the portion of gripping (3) press splenium (6) including gripping support section (4), gripping section (5) and with the thumb of thumb looks adaptation, coupler body (1), stretch into section (2), grip support section (4), grip section (5) and thumb and press splenium (6) to connect gradually, stretch into and be equipped with on section (2) and lead excellent complex spout (7), grip support section (4) slope setting stretch into between section (2) and gripping section (5), and stretch into section (2) and grip the orientation of section (5) opposite.

2. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 1, is characterized in that: the axis of the extending section (2) is parallel to the axis of the holding section (5).

3. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 1, is characterized in that: the thumb pressing part (6) is provided with a concave arc pressing surface.

4. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 1, is characterized in that: the holding part (3) is of a flat structure, and the holding support section (4) and the holding section (5) are in arc transition.

5. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 4, characterized in that: the side surfaces of the holding part (3) are in smooth transition.

6. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in any one of claims 1 to 5, wherein: the stretching-in section (2) is of a flat structure, and the sliding groove (7) is formed by inwards recessing the surface of the stretching-in section (2).

7. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 6, is characterized in that: the side surfaces of the extending section (2) are in smooth transition.

8. The anti-skidding nerve root retractor for the spinal minimally invasive surgery as claimed in claim 1, is characterized in that: the holding part (3) and the extending section (2) are in arc transition.