Auricle composite tissue fixing cutter

Abstract

The utility model relates to the technical field of medical instruments, in particular to an auricle composite tissue fixing cutter. The auricle composite tissue fixing and cutting device comprises a bottom plate and two clamps, the bottom plate is provided with an arc-shaped edge line, one clamp is fixed to one face of the bottom plate, the clamping head part points to the circle center of the arc-shaped edge line of the bottom plate, the other clamp is installed on one face of the bottom plate in a sliding mode, and the clamping head part points to the circle center of the arc-shaped edge line of the bottom plate. The clamping head part points to the circle center of the circular-arc-shaped edge line of the bottom plate, the sliding track of the other clamp is in a circular arc shape, and the other clamp and the circular-arc-shaped edge line of the bottom plate are coaxially distributed. The ear clip has the advantages that the size of the auricle soft tissue to be cut can be accurately positioned by clamping the auricle soft tissue after the two clips relatively move on one side of the bottom plate, meanwhile, the design of the bottom plate can play a role in lining during cutting, the auricle soft tissue and peripheral skin are effectively blocked, and the peripheral skin is prevented from being scratched by a blade.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery equipment, and particularly relates to a fixed cutter for auricular composite tissue. Background Art

[0002] During the operation of auricular deformity correction, the technology of composite tissue transplantation is used. It is to perform full-layer cutting on a part of the skin and cartilage tissue of the healthy auricle on the healthy side, and then transplant this composite tissue to the auricle on the affected side to achieve the surgical effect that the sizes and shapes of the two auricles are basically symmetrical. In the previous operations, the cutting of this composite tissue was rather cumbersome, requiring the cooperation of multiple people, without the assistance of special instruments, with low efficiency, affecting the progress of the entire repair operation, prolonging the time of composite tissue transplantation, and increasing the risk of poor survival of the graft.

[0003] Based on this, it is necessary to develop a special instrument for fixing and cutting auricular composite tissue to overcome the above technical problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a fixed cutter for auricular composite tissue, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the utility model for solving the above technical problem is as follows:

[0006] A fixed cutter for auricular composite tissue includes a bottom plate and two clips. The bottom plate has a circular arc-shaped edge line. One of the clips is fixed on one side of the bottom plate, and the clamping head points to the center of the circular arc-shaped edge line of the bottom plate. The other clip is slidably mounted on one side of the bottom plate, and the clamping head points to the center of the circular arc-shaped edge line of the bottom plate. The sliding track of the other clip is circular arc-shaped and is coaxially distributed with the circular arc-shaped edge line of the bottom plate.

[0007] On the basis of the above technical solution, the utility model can be further improved as follows.

[0008] Further, the bottom plate is a sector plate, the central angle of the bottom plate is α, and 0° < α ≤ 60°.

[0009] Further, a central angle scale line is provided along the circular arc-shaped edge on one side of the bottom plate.

[0010] Further, a circular arc-shaped track coaxially distributed with it is provided at a position on one side of the bottom plate close to its circular arc-shaped edge line, and the other clip is slidably mounted on the track through a slider.

[0011] Further, the above-mentioned clip includes two sector-shaped clip pieces. On one side where the two clip pieces are close to each other, there are connecting ears rotatably connected by a pin shaft. A spring is connected between one ends of the two clip pieces close to their arc edges. One clip piece of one of the above-mentioned clips is fixedly attached to one side of the above-mentioned base plate, flush with one side edge of the above-mentioned base plate, and coaxially distributed with the above-mentioned base plate. One clip piece of the other above-mentioned clip is slidably mounted on the above-mentioned track through the above-mentioned slider.

[0012] Further, a T-shaped chute is provided in the above-mentioned track. The above-mentioned slider is a T-shaped slider and is embedded in the chute of the above-mentioned track.

[0013] Further, length marking lines are respectively provided along the length directions on both side edges of the above-mentioned clip piece.

[0014] Further, on the part of one clip piece of the two above-mentioned clips away from the above-mentioned base plate and close to the arc edge, there is an anti-slip contact part for contacting with the finger.

[0015] Further, two arc-shaped scale lines coaxial with its arc edge are provided at intervals on one side of the above-mentioned base plate.

[0016] Further, a handle is provided in the middle of one end of the other side of the above-mentioned base plate close to its arc edge line.

[0017] The beneficial effects of the present utility model are as follows: The structure design is simple and reasonable. It can accurately position the size of the auricle soft tissue to be cut by clamping the auricle soft tissue after the relative movement of the two clips on one side of the base plate. At the same time, the design of the base plate can play a role of padding during cutting, effectively blocking the auricle soft tissue from the surrounding skin and preventing the blade from scratching the surrounding skin. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the auricle composite tissue fixing and cutting device of the present utility model;

[0019] Figure 2 is a side view of the structure of the auricle composite tissue fixing and cutting device of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Base plate; 2. Clip; 11. Central angle scale line; 12. Track; 13. Handle; 14. Scale line; 21. Clip piece; 211. Connecting ear; 212. Return spring; 213. Length marking line; 214. Anti-slip contact part. Detailed Embodiment

[0022] The principles and features of the present utility model will be described below with reference to the drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0023] Embodiment: As Figure 1 and 2 shown, the auricular composite tissue fixing and cutting device of this embodiment includes a bottom plate 1 and two clips 2. The above bottom plate 1 has an arc-shaped edge line. One of the above clips 2 is fixed on one side of the above bottom plate 1, and the clamping head points to the center of the arc-shaped edge line of the above bottom plate 1. The other above clip 2 is slidably mounted on one side of the above bottom plate 1, and the clamping head points to the center of the arc-shaped edge line of the above bottom plate 1. The sliding track of the other above clip 2 is arc-shaped and is coaxially distributed with the arc-shaped edge line of the above bottom plate 1.

[0024] During the operation of auricular deformity correction using the auricular composite tissue fixing and cutting device of this embodiment, the bottom plate 1 is placed behind the auricular soft tissue on the healthy side (i.e., behind the ear). One clip 2 fixed on the bottom plate 1 is clamped at a position of the auricular soft tissue, and the movable clip 2 is moved to an appropriate central angle and then clamped at another position of the auricular soft tissue. An area of auricular soft tissue to be cut is formed between the two clips 2. Using a scalpel to cut from the front side of the auricular soft tissue, since there is the bottom plate 1 behind the auricular soft tissue, it can block the auricular soft tissue from the skin tissue behind the ear. Therefore, during the surgical cutting process, the blade of the scalpel will only slide across the bottom plate 1 and will not damage the skin tissue around the auricular soft tissue. During the entire operation process, the cutting area formed between the two clips 2 can be flexibly adjusted according to the set reference value. During the operation, the cutting area can be positioned before the operation, so that the outermost edge length of the cut auricular soft tissue generally does not exceed 15 mm, avoiding excessive tissue resection and reducing the risk of tissue necrosis. Overall, the structural design is simple and reasonable. It can accurately position the size of the auricular soft tissue to be cut by the relative movement of the two clips on one side of the bottom plate. At the same time, the design of the bottom plate can play a cushioning role during cutting, effectively blocking the auricular soft tissue from the surrounding skin and preventing the blade from scratching the surrounding skin.

[0025] In this embodiment, the above bottom plate 1 is a sector plate, which can be conveniently attached to the bottom surface of the auricular soft tissue. And during cutting, the bottom plate 1 can serve as an effective barrier to prevent the blade from scratching the surrounding skin. Using its arc-shaped edge can effectively indicate the size of the central angle of the arc segment between the two clips 2, facilitating accurate positioning of the size of the soft tissue to be cut.

[0026] In this embodiment, the central angle of the above bottom plate 1 is α, and 0° < α ≤ 60°.

[0027] In this embodiment, a central angle scale line 11 is provided along the arc-shaped edge on one side of the above bottom plate 1. This central angle scale line 11 can accurately and clearly indicate the angle size of the soft tissue in the cutting area between the two clips 2 on the bottom plate 1.

[0028] Among them, the maximum angle of the bottom plate 1 is 60 degrees, and the outermost edge is divided into 12 marks with a minimum scale of 5 degrees. When the two clips 2 fix the auricular soft tissue, the angle of the soft tissue to be excised can be immediately identified. Then, through the length of the clip 2, the outermost edge length of the soft tissue to be excised can be calculated.

[0029] As a preferred embodiment, a circular arc-shaped track 12 coaxial with it is provided at a position on one side of the bottom plate 1 close to its circular arc edge line, and the other clip 2 is slidably mounted on the track 12 through a slider.

[0030] In the above implementation scheme, the cooperation between the track 12 and the slider enables the other clip 2 to make a circular motion along the track 12, and the length direction of the clip 2 always points to the radial direction of the bottom plate 1, ensuring that an angle of the soft tissue to be cut can be effectively defined between the two clips 2.

[0031] As a preferred embodiment, the clip 2 includes two sector-shaped clip pieces 21. On one side where the two clip pieces 21 are close to each other, there are connecting ears 211 rotatably connected through a pin shaft. A return spring 212 is connected between one ends of the two clip pieces 21 close to their arc edges. One clip piece 21 of one of the clips 2 is fixedly attached to one side of the bottom plate 1 and is flush with one side edge line of the bottom plate 1 and is coaxial with the bottom plate 1. One clip piece 21 of the other clip 2 is slidably mounted on the track 12 through the slider.

[0032] In the above implementation scheme, when operating the clip 2 to clamp the soft tissue, press one end of the clip piece 21 of the clip 2 away from the bottom plate 1 close to the arc edge and compress the return spring 212, so that the two clip pieces 21 of the clip 2 rotate and open around the pin shaft. After clamping, remove the external force applied to the clip piece 21, and the return spring 212 restores its deformation, driving the two clip pieces 21 to close relative to each other and clamp the soft tissue, which is relatively convenient to operate. At the same time, the shape of the clip piece 21 is the same as the shape of the bottom plate 1. After the two clips 2 move, a relatively clear sector area can be defined between the clip pieces 21, so as to accurately indicate the angle of the soft tissue to be cut and facilitate the subsequent accurate calculation of the outer edge length of the soft tissue to be cut.

[0033] In this embodiment, silica gel sheets are pasted on the mutually close sides of the two clip pieces 21 of the same clip 2. During the clamping process, the silica gel sheets fit tightly with the auricular soft tissue, and tissue displacement can be effectively avoided during the cutting process.

[0034] In this embodiment, the materials of the bottom plate 1 and the clip 2 are both made of metal materials, specifically medical stainless steel metal, which is convenient for disinfection treatment, repeated use, and has good durability.

[0035] As a preferred embodiment, the above-mentioned track 12 is provided with a T-shaped chute, and the above-mentioned slider is a T-shaped slider and is fitted into the chute of the above-mentioned track 12.

[0036] In the above-mentioned implementation scheme, the slider and the track 12 can be well fitted, only allowing the slider to move along the length direction of the chute, not easily detaching, the sliding between the two is relatively stable, the structural design is relatively compact, and there will be no shaking during the sliding process.

[0037] As a preferred embodiment, length marking lines 213 are respectively provided along the length direction on both side edges of the above-mentioned clip 21.

[0038] In the above-mentioned implementation scheme, the length of the clip 21 is 40 mm (that is, the radius), and length markings in the range of 0 - 30 mm are engraved on both side edges from the tip to the tail end, with a minimum scale of 1 mm, which can provide a size reference for cutting auricular soft tissues. Currently, the radius of the composite tissue used in clinical surgery does not exceed 20 mm. Therefore, the range of the length marking lines 213 of the clip 21 can effectively meet the surgical requirements.

[0039] As a preferred embodiment, a non-slip contact portion 214 for contacting with a finger is provided at a position where one clip 21 of the two above-mentioned clips 2 away from the above-mentioned base plate 1 is close to the circular arc edge.

[0040] In the above-mentioned implementation scheme, when operating to open the clip 2, the finger generally presses the tail end (close to the outer edge of the circular arc) of one clip 21 away from the base plate 1. Therefore, a non-slip contact portion 214 is designed in this area. The finger covers the non-slip contact portion 214 and applies pressure, causing the clip 21 away from the base plate 1 to rotate and open relatively. The setting of the non-slip contact portion 214 can increase the friction between the finger and it, playing a good anti-slip role.

[0041] Generally, the non-slip contact portion 214 can be a rough surface (concave and convex particles) or other anti-slip structures.

[0042] In this embodiment, two circular arc-shaped scale lines 14 coaxial with its circular arc edge are provided at intervals on one side of the above-mentioned base plate (1). The length ranges of the two scale lines 14 are 10 mm and 20 mm respectively. According to the scale lines 14, the outermost circular arc length of the commonly used auricular composite tissue can be accurately identified. These two marking lines can immediately indicate the specific length during the operation (so that the cutting length does not exceed 15 mm), making it more convenient to use.

[0043] As a preferred embodiment, a handle 13 is provided at the middle of one end of the other side of the above-mentioned base plate 1 close to its circular arc edge line.

[0044] In the above embodiment, since the bottom plate 1 generally needs to be positioned by holding with fingers during operation, and the best contact position is the middle of the other end of the bottom plate 1 close to the arc edge line, a handle 13 is provided at this position so that the fingers have a force point and the handle 13 is held for easy operation. The shape of the handle 13 can be a ring or an L-shaped plate.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0050] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An auricle composite tissue fixing and cutting device, characterized in that: The invention comprises a base plate (1) and two clamps (2), wherein the base plate (1) has an arc-shaped edge line, wherein one of the clamps (2) is fixed to one side of the base plate (1), and the clamping head portion points to the center of the arc-shaped edge line of the base plate (1), and the other clamp (2) is slidably mounted on one side of the base plate (1), and the clamping head portion points to the center of the arc-shaped edge line of the base plate (1), and the sliding track of the other clamp (2) is arc-shaped and is coaxially distributed with the arc-shaped edge line of the base plate (1).

2. The auricle composite tissue fixing and cutting device according to claim 1, characterized in that: The bottom plate (1) is a fan-shaped plate, the center angle of the bottom plate (1) is α, and 0°α≤60°.

3. The auricle composite tissue fixing and cutting device according to claim 2, characterized in that: One side of the bottom plate (1) is provided with a center angle scale line (11) along an arc-shaped edge.

4. The auricle composite tissue fixing and cutting device according to claim 2, characterized in that: One side of the bottom plate (1) is provided with a circular arc track (12) coaxially distributed therewith at a position close to the circular arc edge line thereof, and the other clip (2) is slidably mounted on the track (12) via a slider.

5. The auricle composite tissue fixing and cutting device according to claim 4, characterized in that: The clip (2) comprises two fan-shaped clips (21), and a connecting ear (211) is provided on the side of the two clips (21) close to each other and rotatably connected by a pin shaft. A return spring (212) is connected between the ends of the two clips (21) close to their arc edges. One clip (21) of one of the clips (2) is fitted and fixed on one side of the base plate (1) and is flush with the edge line of one side of the base plate (1) and is coaxially distributed with the base plate (1). One clip (21) of the other clip (2) is slidably mounted on the track (12) through the slider.

6. The auricle composite tissue fixing and cutting device according to claim 5, characterized in that: A T-shaped sliding groove is provided in the track (12), and the slider is a T-shaped slider and is embedded in the sliding groove of the track (12).

7. The auricle composite tissue fixing and cutting device according to claim 5, characterized in that: The two side edges of the clip (21) are respectively provided with length marking lines (213) along the length direction thereof.

8. The auricle composite tissue fixing and cutting device according to claim 5, characterized in that: A non-slip contact portion (214) for contacting fingers is provided at a position close to the arc-shaped edge of a clip (21) of the two clips (2) away from the bottom plate (1).

9. The auricle composite tissue fixing and cutting device according to claim 2, characterized in that: One side of the bottom plate (1) is provided with two arc-shaped scale lines (14) spaced apart and coaxially distributed with the arc edge.

10. The auricle composite tissue fixing and cutting device according to any one of claims 1 to 9, characterized in that: A handle (13) is provided at the middle of one end of the other side of the bottom plate (1) close to its arc-shaped edge line.

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