peeler

Abstract

The utility model discloses a kind of strippers, it is related to the technical field of tools for spinal surgery, wherein, the stripper is used to strip the tissue outside spine, the stripper includes handle, stripping piece and cutting piece, the rear end of stripping piece is connected to handle, the front end of stripping piece forms blunt cutting edge;Cutting piece is set to the inner side of stripping piece, and cutting piece is close to blunt cutting edge, the front end of cutting piece forms sharp cutting edge, sharp cutting edge is located in the rear of blunt cutting edge, and it is arranged with included angle between sharp cutting edge and stripping piece, to form gap.The utility model's stripper has the effect of blunt stripping and sharp cutting simultaneously, stripping effect is better, and it is not necessary to adopt additional cutting tool to cut the tissue that is closely adhered around spine, it is convenient for single person to operate, operation difficulty is lower, and stripping efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of tools for spinal surgery, and in particular to a dissector. Background Technology

[0002] In spinal surgery, a dissector is often used to separate the spine from surrounding tissues to facilitate the operation. Currently, the dissectors used are typically blunt dissectors, which can dissect the surrounding tissues without easily causing damage. However, in reality, the intervertebral discs of the spine are often tightly adhered to the surrounding tissues. Using a blunt dissector to pull apart the surrounding tissues is not ideal, often requiring the use of a sharp scalpel or wire saw to sharply divide the tightly adhered tissues. This requires multiple people working together, and poor coordination can easily damage important surrounding tissues such as nerves, blood vessels, organs, pleura, and peritoneum. The procedure is difficult, the dissection effect is poor, and the dissection efficiency is low. Utility Model Content

[0003] The main purpose of this invention is to propose a peeler that aims to solve the technical problems of unsatisfactory peeling effect and low peeling efficiency of existing blunt peeling sheets.

[0004] To achieve the above objectives, this utility model proposes a stripper for stripping tissue outside the spine, the stripper comprising:

[0005] grip;

[0006] A peeling disc, the rear end of which is connected to the handle, and the front end of which forms a blunt blade;

[0007] A cutting blade is disposed inside the peeling blade and close to the blunt blade. The front end of the cutting blade forms a sharp blade, which is located behind the blunt blade. The sharp blade and the peeling blade are arranged at an angle to form a gap.

[0008] In one embodiment, the inner side of the peeling strip is recessed outward to form an installation step, and the installation step divides the inner side of the peeling strip into a first inner side and a second inner side distributed sequentially from front to back. The rear end of the cutting strip is connected to the step surface of the installation step, and the sharp blade is set at an angle to the first inner side.

[0009] In one embodiment, the outer surface of the cutting blade is in contact with the first inner surface, and the inner surface of the cutting blade smoothly transitions with the second inner surface.

[0010] In one embodiment, the peeling strip is an outwardly curved arc-shaped peeling strip, which forms an arc-shaped second inner surface, and the inner surface of the cutting strip is an arc-shaped inner surface that matches the curvature of the second inner surface.

[0011] In one embodiment, the front end of the peeling strip is a forward-protruding arc-shaped end, and the edge of the arc-shaped end forms the blunt blade.

[0012] In one embodiment, the sharp blade is inclined forward in a direction from the outside to the inside so that an acute angle is formed between the sharp blade and the peeling sheet.

[0013] In one embodiment, the grip is an inwardly curved arc-shaped piece, and the inner and outer sides of the arc-shaped piece are provided with a plurality of anti-slip textures that are spaced apart in a front-to-back direction.

[0014] In one embodiment, the width of the peeling strip is uniformly distributed from its front end to its rear end, and the width of the sharp blade is equal to the width of the peeling strip.

[0015] In one embodiment, the distance between the front end of the sharp blade and the front end of the blunt blade is L, wherein 5mm≤L≤10mm.

[0016] In one embodiment, the grip is integrally formed with the peeler.

[0017] This utility model discloses a dissector with a dissector blade on the handle. The front end of the dissector blade forms a blunt blade. During some spinal surgeries, by holding the handle, the blunt blade on the dissector blade can be used to dissect tissues outside the spine. A cutting blade with a sharp edge is also included. When the blunt blade encounters tightly adhered tissues, the angle of the dissector can be adjusted by the handle, allowing the sharp blade to cut through the tightly adhered tissues. Because the sharp blade is located behind the blunt blade, the blunt blade always contacts the surrounding tissues of the spine first, avoiding damage to the surrounding tissues. By setting the sharp blade at an angle to the dissector blade, the overall angle of the dissector can be adjusted by the handle to position the sharp blade for precise cutting. During the cutting process, the dissector blade can dissect any loosely adhered tissues near the sharp blade to other locations, preventing them from interfering with the sharp blade and effectively protecting those tissues.

[0018] Compared with existing technologies, the peeler of this utility model has both blunt peeling and sharp cutting functions, resulting in better peeling effect. It also eliminates the need for additional cutting tools to cut the tightly adhered tissues around the spine. A single person can operate the peeler to peel the tissues around the spine, making it convenient for single-person operation without the need for multiple people to work together. The operation is simple and the peeling efficiency is high. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a side view of a peeler provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the peeler used in conjunction with the spine according to an embodiment of the present invention;

[0022] Figure 3 This is a front view schematic diagram of a peeler provided in an embodiment of the present invention.

[0023] Explanation of icon numbers:

[0024] 100. Peeler; 1. Handle; 11. Anti-slip texture; 2. Peeling disc; 21. Blunt blade; 22. Inner side; 221. First inner side; 222. Second inner side; 223. Mounting step; 23. Outer side; 3. Cutting disc; 31. Sharp blade;

[0025] 200. Spine.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] In spinal surgery, a dissector is often used to separate the spine from surrounding tissues to facilitate the operation. Currently, the dissectors used are typically blunt dissectors, which can dissect the surrounding tissues without easily causing damage. However, in reality, the intervertebral discs of the spine are often tightly adhered to the surrounding tissues. Using a blunt dissector to pull apart the surrounding tissues is not ideal, often requiring the use of a sharp scalpel or wire saw to sharply divide the tightly adhered tissues. This requires multiple people working together, and poor coordination can easily damage important surrounding tissues such as nerves, blood vessels, organs, pleura, and peritoneum. The procedure is difficult, the dissection effect is poor, and the dissection efficiency is low.

[0031] This utility model proposes a peeler 100.

[0032] Please see Figures 1 to 2 In one embodiment of the present invention, the peeler 100 is used to peel off tissue outside the spine 200. The peeler 100 includes a handle 1, a peeling plate 2, and a cutting plate 3. The rear end of the peeling plate 2 is connected to the handle 1, and the front end of the peeling plate 2 forms a blunt blade 21. The cutting plate 3 is disposed inside the peeling plate 2 and is close to the blunt blade 21. The front end of the cutting plate 3 forms a sharp blade 31, which is located behind the blunt blade 21. The sharp blade 31 and the peeling plate 2 are arranged at an angle to form a gap.

[0033] The dissector 100 of this invention features a dissector 2 on a handle 1. The front end of the dissector 2 has a blunt blade 21. During partial spinal surgery, the handle 1 can be gripped to move the dissector 2 to dissect tissues outside the spinal 200. A cutting blade 3 with a sharp blade 31 is also included. When the blunt blade 21 encounters tightly adhered tissue, the handle 1 can be adjusted to change the overall angle of the dissector 100, allowing the sharp blade 31 to cut the tightly adhered tissue. Furthermore, because the sharp blade 31 is located at the edge of the blunt blade 2... The rear of the blade 1 ensures that the blunt blade 21 always contacts the tissue first, preventing the sharp blade 31 from damaging the tissue. By setting the sharp blade 31 at an angle to the peeling disc 2, the overall operating angle of the peeler 100 can be adjusted by using the handle 1 to position the sharp blade 31 for precise cutting. During the cutting process of the sharp blade 31, the peeling disc 2 can peel away other loosely adhered tissues near the sharp blade 31 to other locations, exposing them to the field of vision and preventing them from interfering with the cutting of the sharp blade 31, while also effectively protecting that part of the tissue.

[0034] Compared with the prior art, the peeler 100 of this utility model has both blunt peeling and sharp cutting functions, resulting in better peeling effect. It also eliminates the need for additional cutting tools to cut the tightly adhered tissues around the spine 200, making it convenient for single-person operation, with lower operation difficulty and higher peeling efficiency.

[0035] like Figure 2 As shown, it should be noted that the inner side is the side of the peeler 100 facing the spine 200 when in use.

[0036] In one embodiment, the inner side surface 22 of the peeling strip 2 is recessed outward to form an installation step 223, and the installation step 223 divides the inner side surface 22 of the peeling strip 2 into a first inner side surface 221 and a second inner side surface 222 distributed sequentially from front to back. The rear end of the cutting strip 3 is connected to the step surface of the installation step 223, and the sharp blade 31 is set at an angle with the first inner side surface 221.

[0037] Understandably, by recessing the inner surface 22 of the dissecting piece 2 outward to form an mounting step 223, and connecting the cutting piece 3 to this step surface, the connection strength and stability between the cutting piece 3 and the dissecting piece 2 can be enhanced. This design ensures that the cutting piece 3 will not shift or fall off due to excessive force during sharp cutting operations, thus guaranteeing the safety and reliability of the spinal 200 surgery procedure.

[0038] The design of the sharp blade 31 being set at an angle with the first inner side surface 221 allows the cutting angle to be adjusted according to actual needs during use, enabling more precise control of the cutting position and direction.

[0039] In one specific embodiment, the rear end of the cutting blade 3 is bonded to the stepped surface, or welded, or integrally formed.

[0040] In one embodiment, the outer surface of the cutting blade 3 is in contact with the first inner surface 221, and the inner surface of the cutting blade 3 smoothly transitions with the second inner surface 222.

[0041] Understandably, the design of the outer surface of the cutting blade 3 fitting snugly against the first inner surface 221 makes the entire dissector 100 more compact, reducing the overall size of the tool and enhancing the relative stability of the cutting blade 3. The smooth transition between the inner surface of the cutting blade 3 and the second inner surface 222 avoids unnecessary scratching or other damage to surrounding tissues caused by the edges of the cutting blade 3 during surgery.

[0042] The smooth transition design also facilitates the cleaning and disinfection of the dissector 100 after surgery, reducing the possibility of residues such as blood and tissue fragments adhering to it.

[0043] In one embodiment, the peeling strip 2 is an outwardly curved arc-shaped peeling strip 2, the arc-shaped peeling strip 2 forms an arc-shaped second inner surface 222, and the inner surface of the cutting strip 3 is an arc-shaped inner surface that matches the curvature of the second inner surface 222.

[0044] In this embodiment, by setting the peeling piece 2 as an arc-shaped peeling piece 2, it is more in line with the curvature of the vertebral body 200, making it easier for the peeling piece 2 to peel the tissue along the outer arc side of the vertebral body; the arc-shaped inner surface of the cutting piece 3 matches the curvature of the second inner surface 222 of the peeling piece 2, making the transition between the two more natural, and both can fit the outer arc side of the vertebral body, so that the sharp blade 31 can cut the tightly adhered tissue on the outer arc side.

[0045] like Figure 3 As shown, in one embodiment, the front end of the peeling piece 2 is a forward-protruding arc-shaped end, and the edge of the arc-shaped end forms a blunt blade 21.

[0046] In this embodiment, the arc-shaped end design allows it to conform more naturally to the tissue gaps during tissue insertion and dissection, and the rounded blunt blade 21 is used for "push-open" dissection, which reduces damage to the tissue and improves safety.

[0047] In one embodiment, the sharp blade 31 is inclined forward in a direction from the outside to the inside so that an acute angle is formed between the sharp blade 31 and the peeling piece 2.

[0048] Because the sharp blade 31 is tilted forward, it can cut tissue at a more natural angle, especially when dealing with tightly adhered tissue. When moving forward, the blunt blade 21 is used to pull most of the tissue apart first, and then the sharp blade 31 is used to cut the more tightly adhered tissue. The operation is simple and more flexible.

[0049] like Figure 1 As shown, in one specific embodiment, the included angle between the sharp blade 31 and the peeling piece 2 is α, 10°≤α≤20°, preferably α=10°.

[0050] In one embodiment, the grip 1 is an inwardly curved arc-shaped piece, and multiple anti-slip textures 11 are provided on both the inner and outer sides of the arc-shaped piece, which are distributed sequentially from front to back.

[0051] In this embodiment, the inwardly curved arc design is more in line with the natural grip shape of the human hand and can better fit the curve of the palm. The arc handle 1 provides more contact area and better support points, which helps to improve control stability. Especially when precise operation is required, by holding the handle 1 at different positions, it can be ensured that force and direction control can be applied more accurately to drive the blunt blade to peel off tissues at different locations outside the spine 200.

[0052] Multiple anti-slip textures 11 are set on the inner and outer sides of the grip 1 to significantly increase friction and prevent the hand from slipping.

[0053] In one embodiment, the width of the peeling strip 2 is uniformly distributed from its front end to its rear end, and the width of the sharp blade 31 is equal to the width of the peeling strip 2.

[0054] In this embodiment, the uniformly wide peeling sheet 2 has a uniform strength distribution and good stability. Furthermore, the design that the width of the sharp blade 31 is equal to the width of the peeling sheet 2 allows the sharp blade 31 to cover the entire width range of the peeling sheet 2 during the cutting operation. This enables the peeling sheet 2 to quickly cut the tightly packed tissue located inside the peeling sheet 2 while pulling away some tissue, resulting in higher peeling efficiency.

[0055] In addition, in some other embodiments, the fast read of the stripper 2 is set to gradually decrease from its front end to its rear end, so that the blunt blade 21 has a certain width, thus making the structure smaller and easier to store.

[0056] like Figure 1 As shown, in one embodiment, the distance between the front end of the sharp blade 31 and the front end of the blunt blade 21 is L, wherein 5mm≤L≤10mm.

[0057] In this embodiment, by setting an appropriate spacing L, it can be ensured that when using the blunt blade 21 for preliminary tissue separation, the sharp blade 31 will not prematurely contact the surrounding tissue or important structures (such as nerves, blood vessels, etc.), reducing the risk of accidental injury. At the same time, this spacing also ensures that when the sharp blade 31 is needed for precise cutting, it can quickly and accurately reach the target position; preferably, L = 10mm.

[0058] In one embodiment, the handle 1 and the peeling plate 2 are integrally formed. The integral forming makes the peeler 100 seamless or without joints, making it easier to clean and disinfect after use. In addition, the integrally formed peeler 100 has a simple structure, better stability, and reduces manufacturing costs.

[0059] It should be noted that the grip 1 and the peeling plate 2 can be made of one-piece molded iron or steel sheets.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A peeler, characterized in that, The stripper is used to strip tissue outside the spine, and the stripper includes: grip; A peeling disc, the rear end of which is connected to the handle, and the front end of which forms a blunt blade; A cutting blade is disposed inside the peeling blade and close to the blunt blade. The front end of the cutting blade forms a sharp blade, which is located behind the blunt blade. The sharp blade and the peeling blade are arranged at an angle to form a gap.

2. The peeler as described in claim 1, characterized in that, The inner side of the peeling piece is recessed outward to form an installation step, and the installation step divides the inner side of the peeling piece into a first inner side and a second inner side distributed sequentially from front to back. The rear end of the cutting piece is connected to the step surface of the installation step, and the sharp blade is set at an angle to the first inner side.

3. The peeler as described in claim 2, characterized in that, The outer surface of the cutting disc is in contact with the first inner surface, and the inner surface of the cutting disc smoothly transitions with the second inner surface.

4. The peeler as described in claim 3, characterized in that, The peeling strip is an outwardly curved arc-shaped peeling strip, which forms an arc-shaped second inner side surface, and the inner surface of the cutting strip is an arc-shaped inner surface that matches the curvature of the second inner side surface.

5. The peeler as described in claim 3, characterized in that, The front end of the peeling piece is a forward-protruding arc-shaped end, and the edge of the arc-shaped end forms the blunt blade.

6. The peeler as described in claim 2, characterized in that, The sharp blade is inclined forward in a direction from the outside to the inside so that an acute angle is formed between the sharp blade and the peeling piece.

7. The stripper as described in any one of claims 1 to 6, characterized in that, The grip is an inwardly curved arc-shaped piece, and multiple anti-slip textures are arranged at intervals from front to back on both the inner and outer sides of the arc-shaped piece.

8. The stripper as described in any one of claims 1 to 6, characterized in that, The width of the peeling disc is uniformly distributed from its front end to its rear end, and the width of the sharp blade is equal to the width of the peeling disc.

9. The peeler as described in any one of claims 1 to 6, characterized in that, The distance between the front end of the sharp blade and the front end of the blunt blade is L, where 5mm≤L≤10mm.

10. The peeler as described in any one of claims 1 to 6, characterized in that, The grip and the release tab are integrally formed.

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