CN211156099U

CN211156099U - Percutaneous pedicle screw skin muscle cutter

Info

Publication number: CN211156099U
Application number: CN201921796656.3U
Authority: CN
Inventors: 彭自强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-08-04
Anticipated expiration: 2029-10-24

Abstract

The utility model provides a percutaneous pedicle of vertebral arch screw skin muscle cutterbar, includes blade sleeve pipe (1) and blade (2), blade sleeve pipe (1) is including sleeve (11) and blade draw-in groove (12), and install on the lateral wall of sleeve (11) front end blade draw-in groove (12), has bayonet socket (21) with blade draw-in groove (12) looks adaptation on blade (2), and blade (2) are through bayonet socket (21) joint on blade draw-in groove (12). The incision device has the advantages of simple structure, convenience in use, accurate incision width and depth, reduction in skin and muscle damage, saving in operation time, reduction in operation bleeding, tidy operation incision and reduction in operation risk.

Description

Percutaneous pedicle screw skin muscle cutter

Technical Field

The utility model relates to a cutting instrument for surgical operation, in particular to a scalpel or a scalpel, in particular to a percutaneous pedicle screw skin muscle cutter.

Background

The pedicle screw internal fixation can provide immediate stability for the spine in the aspect of spine three-column fixation biomechanics, and has increasingly common application in spine surgery and definite curative effect. The pedicle screw implantation in the open surgery has the disadvantages of large trauma, much bleeding and long hospitalization time, and the related research of percutaneous pedicle screw internal fixation is attracting increasing attention. With the development of various minimally invasive techniques, the clinical application of the minimally invasive technique is further expanded, and the spine fracture treatment is developed from the initial simple spine fracture treatment to the current treatment of various spine diseases, mainly including spine fracture reduction internal fixation, spine orthopedics, vertebral body infection and the like. However, at present, before the pedicle screw is placed, skin and muscle tissues are cut by adopting a sharp blade to be clung to a guide needle, so that the incision is too long and the wound is increased, or the incision is too short and the incision is required to be cut for multiple times, so that the operation time is prolonged, the bleeding amount is increased, and the incision is irregular. At present, a quick, accurate and minimally invasive skin and muscle cutting device is not fashionable in percutaneous pedicle screw fixation.

Disclosure of Invention

In view of the shortcomings of the prior art and the needs in the practice, it is an object of the present invention to provide a percutaneous pedicle screw skin muscle cutter. The percutaneous pedicle screw incision instrument aims at solving the defects that the skin muscle incision length is uncertain before percutaneous pedicle screw implantation, the incision is too long, the wound is increased, the incision is too short, repeated incision is carried out, the operation time is prolonged, bleeding is increased, the incision is irregular and the like in the prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a percutaneous pedicle of vertebral arch screw skin muscle cutterbar which characterized in that: the novel blade cutting machine comprises a blade sleeve and a blade, wherein the blade sleeve comprises a sleeve and a blade clamping groove, the blade clamping groove is arranged on the outer side wall of the front end of the sleeve, a bayonet matched with the blade clamping groove is arranged on the blade, and the blade is clamped on the blade clamping groove through the bayonet.

Further:

the blade is provided with scales for indicating width and depth. And different blade models have different width and depth scales.

The guide pin is arranged on the sleeve, the outer diameter of the guide pin is smaller than the inner diameter of the sleeve, and the front end of the guide pin is a pointed end.

The utility model has the advantages that: simple structure, convenient to use, incision width degree of depth is accurate, reduces the damage to skin muscle, saves the operation time, reduces the operation and bleeds, and the operation incision is neat, reduces the operation risk.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of the usage state of the present invention.

In the figure: 1 is a blade cannula, 2 is a blade, 3 is a guide needle, and 4 is skin.

In the blade bushing 1: 11 is a sleeve, 12 is a blade clamping groove;

in the

blade

2, 21 is a bayonet and 22 is a scale.

Detailed Description

Referring to the attached drawings, the utility model relates to a percutaneous pedicle of vertebral arch screw skin muscle cutterbar which characterized in that: including blade sleeve pipe 1 and blade 2, blade sleeve pipe 1 includes sleeve 11 and blade draw-in groove 12, and blade draw-in groove 12 is installed on the lateral wall of sleeve 11 front end, blade 2 is last have with the bayonet socket 21 of blade draw-in groove 12 looks adaptation, blade 2 passes through bayonet socket 21 joint on blade draw-in groove 12.

In the embodiment of the present invention:

the blade 2 is provided with a scale 22 indicating the width and depth. And different blade models have different width and depth scales.

The device also comprises a guide pin 3, the outer diameter of the guide pin 3 is smaller than the inner diameter of the sleeve 11, and the front end of the guide pin is a pointed end.

When in use: and selecting a blade 2 with a proper model to be clamped into the blade clamping groove 12 according to the maximum diameter of the screw and the depth of skin muscles measured by preoperative imaging. Then the sleeve 11 is sleeved into the guide pin 3, the skin muscle is cut forcefully downwards along the guide pin, and the blade 2 is pulled out along the original reverse direction after entering into the proper depth. And (5) sleeving the hollow pedicle screw into the guide pin 3 to complete the screw insertion.

Claims

1. A percutaneous pedicle screw skin muscle cutterbar which is characterized in that: including blade sleeve pipe (1) and blade (2), blade sleeve pipe (1) includes sleeve (11) and blade draw-in groove (12), and blade draw-in groove (12) are installed on the lateral wall of sleeve (11) front end, have bayonet socket (21) with blade draw-in groove (12) looks adaptation on blade (2), and bayonet socket (21) joint is passed through on blade draw-in groove (12) in blade (2).

2. The percutaneous pedicle screw skin muscle cutter as claimed in claim 1, wherein: the blade (2) is provided with a scale (22) for indicating the width and the depth.

3. The percutaneous pedicle screw skin muscle cutter as claimed in claim 1, wherein: the device also comprises a guide pin (3), the outer diameter of the guide pin (3) is smaller than the inner diameter of the sleeve (11), and the front end of the guide pin is a pointed end.