Lumbar vertebra adjustable nerve retractor

Abstract

The utility model relates to the technical field of nerve drag hooks, and discloses a lumbar vertebra adjustable nerve drag hook which is characterized in that drag hook supporting handles are arranged in pairs, traction drag hooks are arranged at the ends of the drag hook supporting handles, supporting rods are arranged in the middles of the drag hook supporting handles, and the nerve drag hook is composed of a rear handheld mechanism and two independent drag hook mechanisms separated from the front end. During use, the drag hook supporting handles are folded by pressing and pressing the drag hook supporting handles, so that the traction drag hooks are closed and put in, then the drag hook supporting handles on the two sides are further closed by pressing and pressing fingers during work, and the front traction drag hooks are separated by utilizing the supporting rods arranged in the middles of the drag hook supporting handles through lever force arms. The epidural sac and the nerve root are retracted and protected through the traction drag hook, the fusion cage implantation area is more fully exposed, compared with a traditional nerve drag hook, the drag hook can be operated with one hand, operation is easy and convenient to use, the use operation of the drag hook can be completed with one hand, the hand operation space can be saved for operators, and the operation efficiency is improved. Compared with a traditional drag hook, the drag hook has better use convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of nerve retractors, in particular to a lumbar adjustable nerve retractor. Background Art

[0002] A cerebral nerve root retractor is a device used in nerve and cardiovascular surgeries, featuring high-strength materials, precise design, various types, easy operation, and reusability. It is mainly used for the traction and separation of nerve roots. In minimally invasive spinal surgeries, nerve retractors are essential operating instruments.

[0003] The existing lumbar nerve retractor is a single rod. When implanting a fusion cage for lumbar fusion, the first assistant needs to hold one retractor in each hand to retract and protect the dura mater sac and nerve roots. The lumbar nerve retractor occupies both hands of the user, leaving no free hand to hold a suction device to help the surgeon clean the blood in the surgical operation area, which is not convenient for the operation of implanting the fusion cage and is very inconvenient to use. Therefore, a lumbar adjustable nerve retractor is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lumbar adjustable nerve retractor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A lumbar adjustable nerve retractor, including a hand-held mechanism and a retractor mechanism. The hand-held mechanism is used for the user to hold by hand, and the hand-held mechanism includes a holding handle.

[0006] The retractor mechanism is arranged at the front part of the holding handle. The retractor mechanism is used for the traction and support of nerve tissues. The retractor mechanism includes retractor shanks, traction retractors, and support rods. The retractor shanks are arranged in pairs. The traction retractors are arranged at the ends of the retractor shanks. The support rods are arranged in the middle of the retractor shanks.

[0007] Preferably, the above-mentioned holding handles are arranged in pairs, and the connection part at the ends of the two holding handles is arranged in a V-shaped structure.

[0008] Preferably, anti-slip grooves are arranged on the sides of both of the above-mentioned holding handles, and the anti-slip grooves are evenly opened on the outer sides of the holding handles.

[0009] Preferably, a bending section is arranged at the front part of the above-mentioned holding handle, and the two retractor shanks are respectively fixed at the front end sides of the two holding handles.

[0010] Preferably, the above-mentioned support rod is arranged in a cylindrical structure, and the support rod is fixedly connected to the inner side of the retractor shank arranged on one side.

[0011] Preferably, the number of the above-mentioned traction hooks is two, and the two traction hooks are respectively fixed to the ends of two hook support handles.

[0012] Compared with the prior art, the utility model adopts the above technical solutions and has the following technical effects:

[0013] This nerve hook adopts a single-handed operation structure. This nerve hook consists of a hand-held mechanism at the rear and a hook mechanism with two independent hooks branched out from the front end. When using and putting it in, the hook support handle is closed by pressing the hook support handle, so that the traction hook is closed and put in. Then, during operation, the two hook support handles on both sides are further closed by pressing with fingers. The support rod arranged in the middle of the hook support handle separates the front traction hook through the lever arm, and the dural sac and nerve roots are pulled apart and protected by the traction hook, so as to more fully expose the fusion device implantation area. Compared with the traditional nerve hook, this designed hook can be operated with one hand, the operation is simple and convenient, and only one hand is needed to complete the use operation of the hook, which can free up the hand operation space for the operator and has better usability than the traditional hook. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall side plane structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the plane top view structure of the hand-held mechanism of the utility model;

[0017] Figure 3 For the Figure 2 structural schematic diagram of area A in the utility model;

[0018] Figure 4 It is a schematic diagram of the pressed and closed state structure of the hook mechanism of the utility model.

[0019] Explanation of the reference numerals: 1, holding handle; 2, hook support handle; 3, anti-slip groove pattern; 4, traction hook; 5, support rod; 6, bending section. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the structures, ratios, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

[0022] Embodiment

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution: a lumbar adjustable nerve retractor, including a handheld mechanism and a retractor mechanism. The whole nerve retractor is made of stainless steel or titanium alloy, with good corrosion resistance and wear resistance, and can maintain stable performance during the operation. The handheld mechanism is used for the user to hold by hand. The handheld mechanism includes a holding handle 1. As shown in the attached Figure 2 figure, the holding handles 1 are arranged in pairs. In order to facilitate the pressing and closing of the holding handles 1, the connection at the ends of the two holding handles 1 is set in a V-shaped structure.

[0024] In order to facilitate the holding of the holding handle 1 and increase the contact friction between the user's hand and the holding handle 1, as shown in the attached Figure 1 figure, anti-slip grooves 3 are provided on the sides of the two holding handles 1. As shown in the attached Figure 3 figure which is the cross-sectional structure diagram of the side of the holding handle 1, the anti-slip grooves 3 are semi-circular grooves, and the anti-slip grooves 3 are evenly opened on the outer sides of the holding handle 1.

[0025] As shown in the attached Figure 1 figure, the retractor mechanism is arranged at the front of the holding handle 1. The retractor mechanism is used for the traction and support of nerve tissue. The retractor mechanism includes retractor shanks 2, traction retractors 4 and support rods 5. The retractor shanks 2 are arranged in pairs. The retractor shanks 2 are used for the installation and support of the traction retractors 4. The two retractor shanks 2 are respectively fixed to the front ends of the two holding handles 1. The traction retractors 4 are used for the traction and support of nerve tissue. The traction retractors 4 are arranged at the ends of the retractor shanks 2. The number of the traction retractors 4 is two. As shown in the attached Figure 1 figure, the two traction retractors 4 are respectively fixed to the ends of the two retractor shanks 2.

[0026] The support rod 5 is used for the expansion support of the hook shank 2. As shown in the appendix Figure 4 As shown, the support rod 5 is arranged in the middle of the hook shank 2. The support rod 5 is arranged in a cylindrical structure. The support rod 5 is fixedly connected to the inner side of the hook shank 2 arranged on one side. When in use, the hook shank 2 is closed by pressing the hook shank 2, so that the traction hook 4 is closed and put in. Then, during work, the two sides of the hook shank 2 are further closed by pressing with fingers. The support rod 5 arranged in the middle of the hook shank 2 separates the front traction hook 4 through the lever arm. The dural sac and nerve roots are pulled apart and protected by the traction hook 4, and the fusion implant area is more fully exposed. Compared with the traditional nerve hook, this designed hook can be operated with one hand, with simple operation and convenient use. Only one hand is needed to complete the use operation of the hook, which can free up the hand operation space for the operator and has better usability than the traditional hook. In order to facilitate the flipping and expansion of the hook shank 2, a bending section 6 is arranged at the front part of the holding handle 1.

[0027] Working principle or structural principle. During use, first take out the disinfected nerve hook from the instrument box, and then hold the holding handle 1 at the rear of the nerve hook with one hand to support the nerve hook through the holding handle 1. Then move the nerve hook above the surgical wound through holding. After completion, pinch and press the front side of the holding handle 1 with the index finger and thumb of one hand. The two sides of the hook shank 2 are closed through the pressing action. At this time, the hook shank 2 is in the state as shown in the appendix Figure 4 As shown. At the same time, the traction hook 4 at the end of the hook shank 2 is also in a closed state. Then put the traction hook 4 into the surgical wound. After completion, further pinch and press the front side of the holding handle 1 with the index finger and thumb of one hand. The two sides of the hook shank 2 are further closed through the pressing action. The support rod 5 arranged in the middle of the hook shank 2 separates the front traction hook 4 through the lever arm. The dural sac and nerve roots are pulled apart and protected by the traction hook 4, and the fusion implant area is more fully exposed. At the same time, the other free hand can hold the suction device to help the surgeon clean the blood in the surgical operation area. Then complete the implant operation of the fusion device, recycle the instruments, and complete the use operation.

[0028] In summary, this nerve retractor adopts a single-handed operation structure. This nerve retractor consists of a hand-held mechanism at the rear and a retractor mechanism with two independent retractors branched out from the front end. When in use, the retractor handle 2 is closed by pressing the retractor handle 2, so that the traction retractor 4 is closed and inserted. Then, during operation, the two side retractor handles 2 are further closed by pressing with fingers. The support rod 5 arranged in the middle of the retractor handle 2 separates the front traction retractor 4 through the lever arm. The dural sac and nerve roots are retracted and protected by the traction retractor 4, and the fusion implant area is more fully exposed. Compared with the traditional nerve retractor, this designed retractor can be operated with one hand, with simple operation and convenient use. The use operation of the retractor can be completed with only one hand, which can free up the hand operation space for the operator and has better usability than the traditional retractor.

[0029] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present invention can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features recited in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. Lumbar adjustable nerve retractor, including a hand-held mechanism and a retractor mechanism, characterized in that: The hand-held mechanism is used for being held by a user, and comprises a holding handle (1); The hook mechanism is arranged at the front part of the gripping handle (1), and is used for pulling and supporting nerve tissue. The hook mechanism comprises a hook support handle (2), a traction hook (4) and a support rod (5). The hook support handle (2) is arranged in pairs, the traction hook (4) is arranged at the end of the hook support handle (2), and the support rod (5) is arranged in the middle of the hook support handle (2).

2. The lumbar adjustable nerve retractor according to claim 1, characterized in that: The gripping handles (1) are arranged in pairs, and the connection between the ends of the two gripping handles (1) is arranged in a V-shaped structure.

3. The lumbar adjustable nerve retractor according to claim 2, characterized in that: The sides of the two gripping handles (1) are both provided with anti-skid grooves (3), and the anti-skid grooves (3) are evenly arranged on the outer sides of the gripping handles (1).

4. The lumbar adjustable nerve retractor according to claim 2, characterized in that: A bending section (6) is provided at the front of the gripping handle (1), and the two retractor handles (2) are respectively fixed to the front ends of the two gripping handles (1).

5. The lumbar adjustable nerve retractor according to claim 4, characterized in that: The support rod (5) is a cylindrical structure, and the support rod (5) is fixedly connected to the inner side of a draw hook support handle (2) provided on one side.

6. The lumbar adjustable nerve retractor according to claim 5, characterized in that: There are two traction hooks (4), and the two traction hooks (4) are respectively fixed to the ends of the two hook support handles (2).

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