阅读说明：本技术 一种椎间孔镜导针 (Intervertebral foramen mirror guide pin ) 是由 黄生辉 于 2021-10-16 设计创作，主要内容包括：本发明公开了一种椎间孔镜导针,包括导针本体(1),所述导针本体(1)的一端为插入端(11),所述插入端(11)的端面呈弧形,导针本体(1)上靠近插入端(11)处设有直径缩小部(12),使得插入端(11)形成水滴状结构。该椎间孔镜导针相比于现有的针状导针可以更加安全地实施穿刺,可避免手术实施过程中对患者组织造成损伤。(The invention discloses an intervertebral foramen mirror guide pin which comprises a guide pin body (1), wherein one end of the guide pin body (1) is an insertion end (11), the end surface of the insertion end (11) is arc-shaped, and a diameter reduction part (12) is arranged on the guide pin body (1) close to the insertion end (11) so that the insertion end (11) forms a water-drop-shaped structure. Compared with the existing needle-shaped guide needle, the intervertebral foramen mirror guide needle can safely puncture, and can avoid the damage to the tissues of a patient in the operation implementation process.)

1. The utility model provides an intervertebral foramen mirror guide pin, includes guide pin body (1), its characterized in that: one end of the guide pin body (1) is an insertion end (11), the end face of the insertion end (11) is arc-shaped, and a diameter reducing part (12) is arranged on the guide pin body (1) close to the insertion end (11).

2. The transforaminal endoscopic lead of claim 1, wherein: the material of the guide pin body (1) is memory alloy.

3. The transforaminal endoscopic lead of claim 1, wherein: the diameter of the main body part of the guide pin body (1) is 1.4 mm-1.6 mm, and the whole length of the guide pin body (1) is 380 mm-420 mm.

4. The transforaminal endoscopic lead of claim 3, wherein: the diameter of the diameter reducing part (12) is 1.0 mm-1.2 mm, the diameter reducing part (12) is connected with the main body part of the guide pin body (1) through a conical surface (13), and the inclination angle of the conical surface (13) is 5-15 degrees.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a guide pin of an intervertebral foramen mirror.

Background

The intervertebral foramen mirror spine minimally invasive technology aims to establish a working channel from the side or the lateral back of the body of a patient to enter an intervertebral foramen, completely remove the protruded or prolapsed nucleus pulposus and the hyperplastic bone outside a safe triangular area of the intervertebral foramen and an intervertebral disc fibrous ring to relieve the pressure on nerve roots, and relieve the blockage of the circulation of a lateral crypt caused by the compression of the intervertebral disc protrusion, the edema of the nerve roots again and aseptic inflammation to cause the recurrence of clinical symptoms. The operation method is a spine minimally invasive surgery system which is formed by a specially designed intervertebral foramen mirror, a corresponding spine minimally invasive surgery instrument, an imaging and image processing system, a bipolar electrocoagulation and ozone therapeutic apparatus.

The operation needs to use the guide pin to perform local anesthesia puncture in the waking state of a patient, and the insertion end of the existing intervertebral foramen mirror guide pin is usually in a needle-shaped structure, which is easy to cause tiny damage to the tissues of the patient in the operation process. Therefore, in order to minimize the trauma caused by the operation, a new guide pin for intervertebral foramen spine operation puncture needs to be developed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects and shortcomings mentioned in the background technology and provide an intervertebral foramen mirror guide pin which can avoid scratching the tissues of a patient during operation.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a foraminiferous mirror guide pin, includes the guide pin body, the one end of guide pin body is for inserting the end, the terminal surface that inserts the end is the arc, is close to insertion end department on the guide pin body and is equipped with the diameter and reduces the portion.

Preferably, the guide pin body of the transforaminal endoscopic guide pin is made of memory alloy.

Preferably, the diameter of the main body part of the guide needle body is 1.4 mm-1.6 mm, and the overall length of the guide needle body is 380 mm-420 mm.

More preferably, the diameter of the diameter reduction part is 1.0 mm-1.2 mm, the diameter reduction part is connected with the main body part of the guide pin body through a conical surface, and the inclination angle of the conical surface is 5-15 degrees.

Compared with the prior art, the invention has the advantages that: compared with the existing needle-shaped guide needle head structure, the guide needle with the water-drop needle head structure can safely puncture and avoid damaging the tissues of a patient in the operation.

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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a guiding needle of a transforaminal endoscope.

Illustration of the drawings:

1. a guide pin body; 11. an insertion end; 12. a diameter reducing portion; 13. a conical surface.

Detailed Description

In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.

Example (b):

as shown in figure 1, the intervertebral foramen mirror guide pin of the invention comprises a guide pin body 1, one end of the guide pin body 1 is an insertion end 11, and the guide pin is used for being inserted into an intervertebral foramen from the side or the side back of the body of a patient to carry out an operation. The end surface of the insertion end 11 is arc-shaped, and a diameter reduction part 12 is arranged on the guide pin body 1 near the insertion end 11. Compared with the existing needle-shaped guide needle, the guide needle with the water-drop needle head structure can safely puncture and can avoid the damage to the tissues of a patient in the operation.

In this embodiment, the material of the needle body 1 is preferably a memory alloy, which can be bent during surgery and can be restored to its original shape after heating. The diameter of the main body part of the guide needle body 1 is 1.4 mm-1.6 mm (see phi in the figure), and the whole length of the guide needle body 1 is 380 mm-420 mm (see L1 in the figure), so that the actual requirements of intervertebral foramen endoscopic spinal surgery are met. The diameter of the reduced diameter portion 12 is preferably 1.0mm to 1.2mm (see L2 in the figure), the reduced diameter portion 12 is connected with the main body portion of the guide needle body 1 through a tapered surface 13, and the inclination angle of the tapered surface 13 is preferably 5 DEG to 15 DEG (see alpha in the figure).

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.