CN108553136A - Outer side drag hook for cervical vertebra operation - Google Patents

Abstract

The invention discloses a lateral drag hook for cervical spine surgery, which comprises a pulling main body arranged in the region of the cervical spine to be operated, and one end of the pulling main body is provided with a vertebral body expansion screw that matches the cervical vertebral body. An occlusal opening, the occlusal opening is engaged on the exposed end of the vertebral body distraction screw, and the pulling body rotates around the occlusal point to push aside the tissues in the area to be operated and expose the operation field. The rotatable connection between the stretching body and the vertebral body distraction screws inserted into the cervical vertebral body can provide a rotating support point for the stretching body, making the operation of the auxiliary personnel more convenient, labor-saving, safe and effective; in addition, only An auxiliary person can remove the tissue in the area to be operated, saving manpower.

Description

A kind of lateral drag hook for cervical spine operation

technical field

The invention relates to an auxiliary appliance for cervical spine surgery, in particular to a lateral drag hook for cervical spine surgery.

Background technique

In cervical spine surgery, retractors are often used to pull the tissues in the front of the cervical spine, such as esophagus, trachea, and carotid artery, in order to expose the affected area and perform local treatment. Existing retractors are often made by bending plates, and in the process of pulling the front tissue of the cervical spine, it requires the cooperation of multiple people to pull in multiple directions simultaneously. The existing retractors have the following disadvantages during use: 1) During the entire operation, more auxiliary medical personnel are required; 2) When the medical personnel pull the anterior tissue of the cervical spine, the force varies, and it is easy to cause tearing due to excessive force tissue (damage to the esophagus and trachea cause esophageal fistula and tracheal fistula, and damage to the carotid artery causes massive hemorrhage that is life-threatening); 3) The width of the existing retractor is narrow, and important tissues, arteries, and veins are easy to bulge from both sides of the retractor, resulting in iatrogenic Injury, such as esophageal fistula, tracheal fistula, carotid artery and jugular vein injury, will greatly increase the hospitalization period and hospitalization medical expenses; 4) The retractor is easy to slip into the important surgical area during the operation, blocking the operator's field of vision and affecting the operation process.

Contents of the invention

The purpose of the present invention is to provide a lateral retractor for cervical spine surgery to solve the problem of wasting manpower due to the need to deploy more auxiliary medical personnel when using the existing retractor to pull the front tissue of the cervical spine mentioned in the background technology ; The existing retractor is not fixed and the width is narrow, causing excessive tissue tearing, iatrogenic injury and blocking the operator's field of vision to affect the operation process.

In order to achieve the above object, the present invention provides the following technical solution: a lateral retractor for cervical spine surgery, including a pulling body arranged in the area of the cervical spine to be operated, one end of the pulling body is provided with a hook that is inserted into the cervical vertebral body The occlusal mouth of the vertebral body distraction screw is matched, and the occlusal mouth is engaged with the exposed end of the vertebral body distraction screw, and the pulling body rotates around the occlusal point to push away the tissue in the area to be operated and expose the surgical field.

Further, the pulling body is also provided with a handle, one end of the handle is fixed on the pulling body, and the other end extends out of the area to be operated; the pulling body is driven by the handle to rotate around the occlusal point.

Further, the handle and the bite opening are located on the same side of the pulling body.

Further, the handle is fixed on the pulling body through a connecting plate, and the plane where the handle is located is perpendicular to the plane where the pulling body is located.

Further, the pulling body is a plate-like structure with a smooth surface, and the length of the pulling body is determined by the height of the cervical vertebral body in the area to be operated.

Further, a row of wavy sawtooth is also provided on the long side of the pulling body close to the cervical vertebral body.

Further, both the handle and the pulling body are made of hard materials.

Compared with prior art, the beneficial effect of the present invention is:

(1) The rotatable connection between the pulling body and the vertebral body distraction screws inserted into the cervical vertebral body can provide a rotating support point for the pulling body, making the operation of the auxiliary personnel more convenient, labor-saving, safe and effective; In addition, only one assistant is needed to push aside the tissue in the area to be operated, saving manpower; the pulling body and the vertebral body distraction screw placed in the cervical vertebral body engage with each other, making it difficult to slide into the important operation area and affect the operator's field of vision ;The width of the stretching body is wide, and important tissues and carotid arteries are not easy to bulge and cause iatrogenic injury;

(2) When the handle rotates and drives the pulling body to pull the tissue to a certain position, the operator only needs to observe whether the handle rotates to adjust the pulling force of the pulling body on the tissue, which can effectively reduce the The problem of artificial overstretching;

(3) The wave-shaped sawtooth on the pulling body can push away the tissues close to the cervical vertebrae together, and can clean the surgical field, which is convenient for subsequent operations.

Description of drawings

Fig. 1 is a structural representation of the present invention;

In the figure: 1-carotid artery, 2-pulling main body, 3-sawtooth, 4-connecting plate, 5-handle, 6-occlusal opening, 7-vertebral body expansion screw.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1: Please refer to FIG. 1 , the present invention provides a technical solution: a kind of external retractor for cervical spine surgery, including a pulling main body 2 arranged in the area of the cervical spine to be operated, and one end of the pulling main body 2 is provided with The occlusal opening 6 matched with the vertebral body expansion screw 7 inserted into the cervical vertebral body, the occlusal opening 6 is engaged on the exposed end of the vertebral body expansion screw 7, and the pulling main body 2 rotates around the occlusal point, Remove the tissue in the area to be operated to expose the operating field.

In order to manipulate the pulling body 2 more conveniently, a handle 5 is also provided on the pulling body 2, one end of the handle 5 is fixed on the pulling body 2, and the other end extends out of the area to be operated; The pulling body 2 is driven by the handle 5 to rotate around the occlusal point, and the handle 5 and the occlusal opening 6 are located on the same side of the pulling body 2 on the handle 5 .

Further, in order to improve the connection strength between the handle 5 and the pulling body 2, the handle 5 is fixed on the pulling body 2 through the connecting plate 4, and the plane where the handle 5 is located is in line with the pulling body 2. The plane is vertical.

The pulling body 2 is a plate-like structure with a smooth surface, and the length of the pulling body 2 is determined by the height of the cervical vertebral body in the area to be operated.

In order to push away the tissues close to the cervical vertebrae, a row of wavy sawtooths 3 is provided on the long side of the pulling body 2 close to the cervical vertebrae.

Both the handle 5 and the pulling body 2 are made of hard materials.

Method of use: the vertebral body distraction screw 7 is placed into the adjacent vertebral body from the front end of the cervical spine; by manipulating the handle 5, the connecting plate 4 and the pulling body 2 connected to it are driven to act as distraction screws around the vertebral body The central axis of 7 rotates, because the plate surface of the pulling body 2 fits with the tissue to be stretched, for example: fits with the carotid artery 1, that is, the pulling body 2 can give the tissue to be stretched during the rotation process. An active force is used to pull the tissue to pull the tissue to be pulled.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, Alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A kind of lateral drag hook for cervical vertebra operation, it is characterized in that: comprise the traction main body that is arranged in the region of cervical vertebra to be operated on, one end of described traction main body is provided with the vertebral body expansion screw that is inserted into cervical vertebral body A matching occlusion, the occlusion is engaged on the exposed end of the vertebral body distraction screw, the pulling body rotates around the occlusal point, and the tissue in the area to be operated is pushed away to expose the operation field. 2. The lateral retractor for cervical spine surgery according to claim 1, characterized in that: the pulling body is also provided with a handle, one end of the handle is fixed on the pulling body, and the other end extends out of the area to be operated ; The pulling body is driven by the handle to rotate around the occlusal point. 3 . The lateral retractor for cervical spine surgery according to claim 2 , wherein the handle and the occlusal opening are located on the same side of the pulling body. 4 . 4 . The lateral retractor for cervical spine surgery according to claim 3 , wherein the handle is fixed on the pulling body through a connecting plate, and the plane where the handle is located is perpendicular to the plane where the pulling body is located. 5. The lateral retractor for cervical spine surgery according to claim 1, characterized in that: the pulling body is a plate-like structure with a smooth surface, and the length of the pulling body is determined by the height of the cervical vertebral body in the area to be operated. 6 . The lateral retractor for cervical spine surgery according to claim 5 , wherein a row of wavy sawtooths is provided on the long side of the pulling body close to the cervical vertebral body. 7 . 7. The lateral retractor for cervical spine surgery according to claim 6, characterized in that: both the handle and the pulling body are made of hard materials.