Scissors for anorectal operation

Abstract

The utility model relates to a pair of surgical scissors, in particular to a pair of scissors for anorectal surgery, which comprises two hinged scissor handles, each scissor handle consists of a first handle body, a second handle body and a third handle body, and two ends of the second handle body are respectively connected with one end of the first handle body and one end of the third handle body through damping rotating shafts. The scissors handles of the scissors for the anorectal operation are of a three-section assembly structure, external force is applied to control the damping rotating shaft, the second handle body and the first handle body can rotate relative to each other, the second handle body and the third handle body can rotate relative to each other, and force can be applied by hands to adjust the shape structures of the scissors handles according to the position conditions of to-be-sheared tissues in the anus and the rectum. According to the pair of scissors for the anorectal operation, a light source and a visual field are prevented from being blocked by the scissors holding hand during the operation, the scissors holding operation is smoother, the included angle between the second handle body and the first handle body and the included angle between the second handle body and the third handle body can be adjusted, the overall length of the scissors handles can be adjusted, the scissors handles can be in various shapes and structures, and the application range of the pair of scissors for the anorectal operation is wider.

Description

Technical Field

[0001] The utility model relates to a pair of surgical scissors, in particular to a pair of scissors used for anorectal surgery. Background Art

[0002] Anorectal surgery scissors are a pair of scissors used in anorectal surgery. Traditional scissors consist of two hinged scissor handles, a cutting edge provided at one end of the scissor handles, and a finger ring provided at the other end of the scissor handles.

[0003] During anorectal surgeries such as hemorrhoid removal, granulation tissue trimming, and fistula incision, the blade of the scissors is inserted into the anus or rectum to cut tissue. Since the handles of existing anorectal surgical scissors are mostly straight, the surgeon's hand holding the scissors can easily block the light source and field of view during use, making surgical operations in the anus difficult. Although there are also technical proposals to design the scissor handles into a curved shape so that the hand holding the scissors and the blade are not in the same plane, which helps to reveal the field of view during use, the tissues that need to be cut in the anus and rectum during anorectal surgery are located at different locations, and the tissue cutting situations encountered are diverse. The curvature of existing scissor handles cannot be adjusted, and there is still a situation where the light source and field of view are blocked. Therefore, existing anorectal surgical scissors have the problem of poor applicability. Utility Model Content

[0004] The purpose of the utility model is to provide a pair of scissors for anorectal surgery, the scissors handle is a multi-section assembly structure, the shape of the scissors handle is adjustable, and can be adjusted according to actual conditions to make the scissoring operation smoother and avoid blocking the light source and field of view, so as to solve the problems raised in the above background technology.

[0005] The utility model is achieved through the following technical solutions:

[0006] A pair of scissors for anorectal surgery comprises two hinged scissor handles, wherein the scissor handles are composed of a first handle body, a second handle body and a third handle body, wherein the two ends of the second handle body are respectively connected to one end of the first handle body and one end of the third handle body via a damping rotating shaft; applying an external force can cause the second handle body and the first handle body, and the second handle body and the third handle body to rotate relative to each other, and can cause the first handle body, the second handle body and the third handle body to form a Z-shaped scissor handle, a V-shaped scissor handle, an L-shaped scissor handle or the like; when no external force is applied, the second handle body remains fixed to the first handle body and the third handle body to avoid easy rotation that affects the surgical operation.

[0007] Further definition, the damping shaft is composed of a bearing tube and a locking screw, both ends of the second handle body are provided with an axial hole, the bearing tube is inserted into the axial hole, and the inner side wall of the bearing tube is provided with an internal thread; the damping shaft between the second handle body and the first handle body, one end of its bearing tube is fixed on the first handle body, and its locking screw is threadedly connected to the other end of the bearing tube. Tightening the locking screw causes the head of the locking screw and the second handle body, and the second handle body and the first handle body to squeeze and generate friction, which can enable the locking screw and the first handle body to clamp and fix the second handle body; the damping shaft between the second handle body and the third handle body, one end of its bearing tube is fixed on the third handle body, and its locking screw is threadedly connected to the other end of the bearing tube. Tightening the locking screw causes the head of the locking screw and the second handle body, and the second handle body and the third handle body to squeeze and generate friction, which can enable the locking screw and the third handle body to clamp and fix the second handle body.

[0008] Further definition, both ends of the second handle body, the end of the first handle body close to the second handle body, and the end of the third handle body close to the second handle body are provided with card slots, the inner side wall of the second handle body is flush with the inner side wall of the first handle body and the inner side wall of the third handle body, and the outer side wall of the second handle body is flush with the outer side wall of the first handle body and the outer side wall of the third handle body.

[0009] According to a further definition, the middle parts of the two first handle bodies are hinged, and a cutting edge is provided at one end of each first handle body away from the second handle body, and a finger ring is provided at one end of each third handle body away from the second handle body; when the doctor holds the scissors, his thumb and ring finger are respectively buckled into the two finger rings to control the opening and closing of the two scissors handles, the middle finger is placed on the L-shaped connection part between the finger ring and the third handle body, and the index finger is pressed on the top surface of the third handle body to play a stabilizing and orienting role.

[0010] Further defined, the inner side wall of the finger ring is provided with a first anti-slip structure to prevent the thumb and ring finger from slipping when scissors are used, thereby improving the stability of the scissors operation.

[0011] Further defined, a second anti-slip structure is provided at the L-shaped connection portion between the finger ring and the third handle body to prevent the middle finger from slipping when scissors are used, thereby improving the stability of the scissors operation.

[0012] As a further limitation, the top surface of the third handle is provided with a third anti-slip structure to prevent the index finger from slipping when scissors are used, thereby improving the stability of the scissors operation.

[0013] Further definition, each of the third handle bodies is fixed with two limit posts on the inner wall near one end of the finger ring, and the ends of the two limit posts on one third handle body are provided with grooves, and the ends of the two limit posts on the other third handle body are provided with bosses that match the grooves, and the limit posts between the two third handle bodies correspond to each other one by one; when the scissors for anorectal surgery are closed, the bosses between the two corresponding limit posts match the grooves, and after loosening the locking screws, the two third handle bodies can be rotated synchronously under the limiting action of the two corresponding groups of limit posts, so that the shapes of the two scissors handles correspond to each other, that is, the angles between the second handle bodies and the first handle bodies of the two scissors handles are equal, and the angles between the second handle bodies and the third handle bodies of the two scissors handles are equal.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The anorectal surgery scissors can be used for surgical cutting of anal or rectal tissues. The scissor handles are a three-section assembly structure. External force is applied to control the damping shaft, so that the second handle body and the first handle body, and the second handle body and the third handle body can rotate relative to each other. The first handle body, the second handle body and the third handle body can form a Z-shaped scissor handle, a V-shaped scissor handle, an L-shaped scissor handle and other shape structures. According to the position of the tissue to be cut in the anus and rectum, the shape structure of the scissor handle can be adjusted by applying force by hand, so that the hand holding the scissors can avoid blocking the light source and field of view during the surgical operation, making the scissoring operation smoother. The angle between the second handle body and the first handle body, the angle between the second handle body and the third handle body can be adjusted, and the overall length of the scissor handle can be adjusted. The scissor handle can be made to have a variety of shape structures, making the application range of the anorectal surgery scissors more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 for Figure 1 This is a schematic diagram of the three-dimensional structure of scissors used in anorectal surgery;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the scissors used for anorectal surgery;

[0018] Figure 3 This is the front view of the scissors used for anorectal surgery;

[0019] Figure 4 for Figure 3 a top view of the shear shown;

[0020] Figure 5 for Figure 3 Schematic diagram of the adjustment state of the shears shown.

[0021] The names of the components in the figure are: 1. Scissors handle, 1.1. First handle body, 1.2. Second handle body, 1.3. Third handle body, 2. Cutting edge, 3. Damping shaft, 3.1. Bearing tube, 3.2. Locking screw, 4. Third anti-slip structure, 5. Second anti-slip structure, 6. Finger ring, 7. First anti-slip structure, 8. Limiting column, 8.1. Groove, 8.2. Boss. DETAILED DESCRIPTION

[0022] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0023] A kind of scissors for anorectal surgery, such as Figures 1 to 4 As shown, the scissors comprise two hinged handles 1, which consist of a first handle body 1.1, a second handle body 1.2 and a third handle body 1.3; the two ends of the second handle body 1.2 are respectively connected to one end of the first handle body 1.1 and one end of the third handle body 1.3 via a damping shaft 3; the middle parts of the two first handle bodies 1.1 are hinged, and the other end of each first handle body 1.1 is provided with a cutting edge 2, and the other end of each third handle body 1.3 is provided with a finger ring 6; when the doctor uses the scissors, his thumb and ring finger are respectively buckled into the two finger rings 6 to control the opening and closing of the two scissors handles 1, the middle finger is placed on the L-shaped connection between the finger ring 6 and the third handle body 1.3, and the index finger is pressed on the top surface of the third handle body 1.3 to play a stabilizing and orienting role.

[0024] In this embodiment, Figure 2 As shown, the damping shaft 3 is composed of a bearing tube 3.1 and a locking screw 3.2. Both ends of the second handle body 1.2 are provided with an axial hole, the bearing tube 3.1 is installed in the axial hole, and the inner side wall of the bearing tube 3.1 is provided with an internal thread; the damping shaft 3 between the second handle body 1.2 and the first handle body 1.1, one end of the bearing tube 3.1 is fixed on the first handle body 1.1, and the locking screw 3.2 is threadedly connected to the other end of the bearing tube 3.1, and the locking screw 3.2 is tightened to make the head of the locking screw 3.2 and the second handle body 1.2, and the second handle body 1.2 and the first handle body 1.1 be connected. The friction force generated by the squeezing between the locking screw 3.2 and the first handle body 1.1 can clamp and fix the second handle body 1.2; the damping shaft 3 between the second handle body 1.2 and the third handle body 1.3 has one end of the bearing tube 3.1 fixed to the third handle body 1.3, and the locking screw 3.2 is threadedly connected to the other end of the bearing tube 3.1. Tightening the locking screw 3.2 causes the head of the locking screw 3.2 to squeeze and generate friction between the second handle body 1.2 and between the second handle body 1.2 and the third handle body 1.3, so that the locking screw 3.2 and the third handle body 1.3 can clamp and fix the second handle body 1.2;

[0025] It should be noted here that the damping shaft 3 in the present application includes but is not limited to the above-mentioned structural form, and other known rotary damper structures may also be adopted, such as the damping shaft structure used in laptop computers; in this embodiment, the damping shaft 3 is composed of a bearing tube 3.1 and a locking screw 3.2, which has a stable structure and turning the locking screw 3.2 also facilitates adjusting the tightness.

[0026] In this embodiment, Figures 1 to 4 As shown, both ends of the second handle body 1.2, the end of the first handle body 1.1 close to the second handle body 1.2, and the end of the third handle body 1.3 close to the second handle body 1.2 are all provided with card slots, the inner side wall of the second handle body 1.2 is flush with the inner side wall of the first handle body 1.1 and the inner side wall of the third handle body 1.3, and the outer side wall of the second handle body 1.2 is flush with the outer side wall of the first handle body 1.1 and the outer side wall of the third handle body 1.3; here, the side where the two second handle bodies 1.2 are close to each other is their inner side.

[0027] In this embodiment, Figures 1 to 4 As shown, the inner side wall of the finger ring 6 is provided with a first anti-slip structure 7 to prevent the thumb and ring finger from slipping when holding the scissors. A second anti-slip structure 5 is provided at the L-shaped connection portion between the finger ring 6 and the third handle body 1.3 to prevent the middle finger from slipping when holding the scissors. The top surface of the third handle body 1.3 is provided with a third anti-slip structure 4 to prevent the index finger from slipping when holding the scissors. The above protective structures can improve the stability of the scissoring operation;

[0028] The first anti-slip structure 7 , the second anti-slip structure 5 and the third anti-slip structure 4 are all composed of a plurality of ridges or a plurality of grooves, and play an anti-slip role.

[0029] In this embodiment, Figure 1 and Figure 2 As shown, two limiting posts 8 are fixed to the inner side wall of each third handle body 1.3 near the end of the finger ring 6. The ends of the two limiting posts 8 on one third handle body 1.3 are each provided with a groove 8.1, and the ends of the two limiting posts 8 on the other third handle body 1.3 are each provided with a boss 8.2 that matches the groove 8.1. The limiting posts 8 between the two third handle bodies 1.3 correspond one to one; the groove 8.1 is an arc groove, and the boss 8.2 is a hemispherical shape.

[0030] When the anorectal surgery scissors are closed, the boss 8.2 and the groove 8.1 between the two corresponding limiting columns 8 are matched with each other. After loosening the locking screw 3.2, the two third handle bodies 1.3 can be rotated synchronously under the limiting action of the two corresponding groups of limiting columns 8, so that the shapes of the two scissors handles 1 are the same, that is, the angles between the second handle bodies 1.2 and the first handle bodies 1.1 of the two scissors handles 1 are equal, and the angles between the second handle bodies 1.2 and the third handle bodies 1.3 of the two scissors handles 1 are equal.

[0031] The working principle of the anorectal surgery scissors is:

[0032] When using the anorectal surgery scissors to cut tissue in the anus or rectum during anorectal surgery, the shape and structure of the scissor handles 1 can be adjusted according to the position of the tissue to be cut in the anus and rectum. When adjusting, the two scissor handles 1 are in a closed state, and the boss 8.2 and the groove 8.1 between the two corresponding limiting columns 8 between the two third handle bodies 1.3 are matched with each other to ensure that the two third handle bodies 1.3 can rotate synchronously;

[0033] When adjusting the angle between the second handle body 1.2 and the first handle body 1.1, loosen the locking screws 3.2 at the connection between the second handle body 1.2 and the first handle body 1.1 on the two scissors handles 1, and the two first handle bodies 1.1 can be rotated synchronously; after adjusting to the right position, tighten the two locking screws 3.2;

[0034] When adjusting the angle between the second handle body 1.2 and the third handle body 1.3, loosen the locking screws 3.2 at the connection between the second handle body 1.2 and the third handle body 1.3 on the two scissors handles 1, and the two third handle bodies 1.3 can be rotated synchronously; after adjusting to the right angle, tighten the two locking screws 3.2;

[0035] like Figure 5 As shown, by loosening the locking screw 3.2, the second handle body 1.2 and the first handle body 1.1, and the second handle body 1.2 and the third handle body 1.3 can rotate relative to each other, so that the first handle body 1.1, the second handle body 1.2 and the third handle body 1.3 can form a Z-shaped scissors handle 1, a V-shaped scissors handle 1, an L-shaped scissors handle 1, etc.; after tightening the locking screw 3.2, the second handle body 1.2 and the first handle body 1.1 and the third handle body 1.3 remain fixed, which can prevent them from easily rotating and affecting the surgical operation;

[0036] The scissors handle 1 of the anorectal surgery scissors is a three-section assembly structure. By adjusting the shape structure of the scissors handle 1, the hand holding the scissors can avoid blocking the light source and field of view during the surgical operation, making the scissoring operation smoother. The angle between the second handle body 1.2 and the first handle body 1.1 and the angle between the second handle body 1.2 and the third handle body 1.3 can be adjusted. The overall length of the scissors handle 1 can be adjusted, and the scissors handle 1 can be made to have a variety of shape structures, making the application range of the anorectal surgery scissors more extensive.

Claims

1. A pair of scissors for anorectal surgery, comprising two hinged scissor handles (1), characterized in that: The scissors handle (1) is composed of a first handle body (1.1), a second handle body (1.2) and a third handle body (1.3); two ends of the second handle body (1.2) are respectively connected to one end of the first handle body (1.1) and one end of the third handle body (1.3) via a damping shaft (3).

2. The anorectal surgery scissors according to claim 1, characterized in that: The damping rotating shaft (3) is composed of a bearing tube (3.1) and a locking screw (3.2); both ends of the second handle body (1.2) are provided with an axial hole, the bearing tube (3.1) is inserted into the axial hole, and the inner side wall of the bearing tube (3.1) is provided with an internal thread; the damping rotating shaft (3) between the second handle body (1.2) and the first handle body (1.1) has one end of its bearing tube (3.1) fixed on the first handle body (1.1), and the locking screw (3.2) is threadedly connected to the other end of the bearing tube (3.1); the damping rotating shaft (3) between the second handle body (1.2) and the third handle body (1.3) has one end of its bearing tube (3.1) fixed on the third handle body (1.3), and the locking screw (3.2) is threadedly connected to the other end of the bearing tube (3.1).

3. The anorectal surgery scissors according to claim 2, characterized in that: Both ends of the second handle body (1.2), one end of the first handle body (1.1) close to the second handle body (1.2), and one end of the third handle body (1.3) close to the second handle body (1.2) are all provided with slots; the inner side wall of the second handle body (1.2) is flush with the inner side wall of the first handle body (1.1) and the inner side wall of the third handle body (1.3); and the outer side wall of the second handle body (1.2) is flush with the outer side wall of the first handle body (1.1) and the outer side wall of the third handle body (1.3).

4. The anorectal surgery scissors according to claim 2, characterized in that: The middle parts of the two first handle bodies (1.1) are hinged, one end of each first handle body (1.1) away from the second handle body (1.2) is provided with a cutting edge (2), and one end of each third handle body (1.3) away from the second handle body (1.2) is provided with a finger ring (6).

5. The anorectal surgery scissors according to claim 4, characterized in that: The inner side wall of the finger ring (6) is provided with a first anti-slip structure (7).

6. The anorectal surgery scissors according to claim 4, characterized in that: A second anti-slip structure (5) is provided at the L-shaped connection portion between the finger ring (6) and the third handle body (1.3).

7. The anorectal surgery scissors according to claim 4, characterized in that: The top surface of the third handle body (1.3) is provided with a third anti-slip structure (4).

8. The anorectal surgery scissors according to claim 4, characterized in that: Two limiting posts (8) are fixed to the inner side wall of each third handle body (1.3) close to one end of the finger ring (6); the ends of the two limiting posts (8) on one third handle body (1.3) are each provided with a groove (8.1); the ends of the two limiting posts (8) on the other third handle body (1.3) are each provided with a boss (8.2) that matches the groove (8.1) in a concave-convex manner; the limiting posts (8) between the two third handle bodies (1.3) correspond one to one.

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