Biological skin punching device

Abstract

The utility model discloses a biological skin punching device which is used for punching biological skin and comprises a bottom plate and a punching assembly. The bottom plate is provided with a plurality of first through holes. The punching assembly comprises a shell, a pressing block and a reset piece, the pressing block is slidably connected to the shell, and a plurality of cutters are arranged on the lower end face of the pressing block; the cutter is at least provided with a cutter outlet position and a containing position, the pressing block can move downwards to enable the cutter to stretch out of the shell downwards, and the cutter is located at the cutter outlet position; when the cutter is located at the cutter outlet position, the reset piece exerts upward force on the pressing block, the reset piece can drive the pressing block to move upwards so as to drive the cutter to retract upwards into the shell, and the cutter is located at the containing position. And when the biological skin is clamped by the bottom plate and the shell, the cutter can downwards extend out of the shell to cut the biological skin and penetrates through the first through hole. According to the biological skin punching device, the punching efficiency can be improved, pollution caused by long-term exposure to the outside can be avoided through automatic retraction of the cutter, medical workers are prevented from being accidentally injured by the cutter, and clinical accidental injury is prevented.

Description

Technical Field

[0001] This utility model relates to the field of surgical instrument technology, and in particular to a biological skin perforation device. Background Technology

[0002] Biofilm grafting is the most basic and important surgical method in burn and plastic surgery. During clinical surgery, drainage holes are typically made in the biofilm to facilitate drainage of blood accumulation at the base of the graft after free skin grafting, allowing for better blood supply between the graft and the base, and increasing the survival rate of the free skin graft. Pre-drilled biofilm is available clinically, but this requires freezing. Non-perforated biofilm is cheaper and can be stored at room temperature or cryogenically. Therefore, non-perforated biofilm is generally purchased, and drainage holes are made manually at the clinic. However, this requires manually making drainage holes one by one with a scalpel, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a bio-skin perforation device.

[0004] This utility model provides a biological skin perforation device, comprising: a base plate having a plurality of first through holes arranged at intervals; a perforation assembly including a cutter, a housing, a pressing block, and a resetting member, wherein the pressing block is slidably connected to the housing, the lower end face of the pressing block has a plurality of cutters, the housing has a bottom wall having a plurality of second through holes for the cutters to pass through, and the resetting member is disposed between the pressing block and the bottom wall; wherein the cutter has an extension position and a retracted position, when the cutter is in the extension position, the cutter passes through the second through holes and the first through holes, and the resetting member applies an upward elastic force to the pressing block; when the cutter is in the retracted position, the cutter is located inside the housing.

[0005] The bio-skin perforation device according to an embodiment of this utility model has at least the following technical effects: When the bio-skin needs to be perforated, the bio-skin is placed on the base plate, and the shell is then placed on the bio-skin. Pressing down the pressure block causes the cutter to move downward and extend out of the second through hole of the shell. The cutter cuts and perforates the bio-skin and passes through the first through hole, at which point the cutter is in the outgoing position. When the pressure block is released, under the action of the reset member, the pressure block moves upward and drives the cutter to retract into the shell, so that the cutter is in the storage position. This bio-skin perforation device can improve perforation efficiency, and the automatic retraction of the cutter can avoid long-term exposure to the outside environment and thus prevent contamination, and also prevent medical personnel from being accidentally injured by the cutter.

[0006] According to some embodiments of the present invention, the lower end surface of the base plate is provided with a plurality of support feet, and the plurality of support feet together support the base plate.

[0007] According to some embodiments of the present invention, the upper end face of the base plate is provided with a positioning groove, and the lower end face of the housing is provided with a positioning block, the positioning block being used for positioning and cooperating with the positioning groove.

[0008] According to some embodiments of the present invention, there are multiple positioning slots and multiple positioning blocks, and the multiple positioning slots correspond one-to-one with the multiple positioning blocks.

[0009] According to some embodiments of the present invention, the side wall of the housing is provided with a handle.

[0010] According to some embodiments of the present invention, the inner sidewall of the housing is provided with a guide groove, the guide groove extends in the vertical direction, and the outer sidewall of the pressure block is provided with a protrusion, the protrusion being inserted into the guide groove so that the pressure block is slidably connected to the housing.

[0011] According to some embodiments of this utility model, the reset element is a reset spring.

[0012] According to some embodiments of the present invention, the reset member is located inside the housing, the upper end of the reset member is connected to the pressure block, and the lower end of the reset member is connected to the bottom of the housing.

[0013] According to some embodiments of the present invention, the inner peripheral wall of the housing is provided with a retaining ring, the lower end face of the retaining ring can abut against the upper end face of the protrusion to restrict the protrusion from moving upward. When the protrusion abuts against the retaining ring, the cutter is located in the storage position.

[0014] According to some embodiments of the present invention, the base plate and the housing are rotatably connected, and the housing can rotate relative to the base plate so that the bottom wall of the housing and the upper end surface of the base plate approach or move away from each other.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of the bio-skin perforation device according to some embodiments of the present invention;

[0018] Figure 2This is a schematic diagram of the structure of the base plate and the drilling assembly in some embodiments of this utility model;

[0019] Figure 3 This is a cross-sectional view of the base plate and the perforation assembly used to clamp the bio-skin in some embodiments of this utility model;

[0020] Figure 4 yes Figure 3 An enlarged view of point A;

[0021] Figure 5 This is a schematic diagram of the cutter located at the blade exit position in some embodiments of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the cutter located in the storage position according to some embodiments of this utility model;

[0023] Figure 7 This is a schematic diagram of the bio-skin perforation device according to some embodiments of the present invention from another angle.

[0024] Icon labels:

[0025] Base plate 100, first through hole 110, bio-skin 120, support foot 130, positioning groove 140;

[0026] Drilling assembly 200, housing 210, pressure block 220, reset component 230, cutter 241, positioning block 242, handle 243, second through hole 250, guide groove 261, protrusion 262, retaining ring 270, hinge 280. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0032] According to some embodiments of this utility model, refer to Figures 1 to 6 As shown, the bio-skin perforation device is used to perforate the bio-skin 120. The bio-skin perforation device includes a base plate 100 and a perforation assembly 200, which can cooperate to clamp the bio-skin 120. The base plate 100 is provided with a plurality of first through holes 110, which are arranged at intervals and in an array. The perforation assembly 200 includes a housing 210, a pressure block 220, and a reset member 230. The pressure block 220 is slidably connected to the housing 210, and the lower end face of the pressure block 220 is provided with a plurality of cutters 241, which correspond one-to-one with the plurality of first through holes 110. The bottom wall of the housing 210 is provided with a plurality of second through holes 250, which communicate with the inner cavity of the housing 210. The plurality of second through holes 250 correspond one-to-one with the plurality of cutters 241, and the cutters 241 can extend out of the housing 210 or retract into the housing 210 through the second through holes 250.

[0033] The cutting blade 241 has an extension position and a storage position, wherein:

[0034] The pressure block 220 can move downward relative to the housing 210, causing the cutter 241 to move downward and extend out of the second through hole 250 of the housing 210. At this time, the cutter 241 is in the exit position.

[0035] When the cutter 241 is in the out position, the reset member 230 applies an upward elastic force to the pressure block 220. The reset member 230 drives the pressure block 220 to move upward, thereby driving the cutter 241 to retract upward into the housing 210. At this time, the cutter 241 is in the storage position.

[0036] When the base plate 100 and the shell 210 clamp the bio-skin 120, the cutter 241 can extend downward from the shell 210 to cut the bio-skin 120 and pass through the first through hole 110.

[0037] Understandably, when the bio-skin 120 needs to be perforated, it is placed on the base plate 100, and then the shell 210 is placed on top of it, with the bio-skin 120 positioned between the shell 210 and the base plate 100. Pressing down on the pressing block 220 causes it to move downwards, thereby moving the cutter 241 downwards. The cutter 241 extends out of the shell 210 and cuts and perforates the bio-skin 120. The cutter 241 then passes through the first through hole 110 to avoid collision or interference between the cutter 241 and the base plate 100. At this time, the cutter 241 is in the extended position. When the pressing block 220 is released, under the action of the reset member 230, the pressing block 220 moves upwards and causes the cutter 241 to retract into the shell 210, at which point the cutter 241 is in the retracted position.

[0038] This bio-skin perforation device can improve perforation efficiency, and the automatic retraction of the cutter 241 can avoid long-term exposure to the outside world and thus prevent contamination. It also prevents medical staff from being accidentally injured by the cutter 241, thus preventing clinical accidental injuries.

[0039] According to some embodiments of this utility model, refer to Figure 1 The lower end face of the base plate 100 is provided with multiple support feet 130. The support feet 130 together support the base plate 100. Moreover, the presence of the support feet 130 allows for a certain gap between the lower end face of the base plate 100 and the support surface. After the cutter 241 passes through the first through hole 110, it can enter the gap, thus preventing the cutter 241 from colliding with the support surface and being damaged.

[0040] According to some embodiments of this utility model, refer to Figure 1 and Figure 5 The upper surface of the base plate 100 is provided with a positioning groove 140, and the lower surface of the housing 210 is provided with a positioning block 242. When the positioning block 242 is inserted into the positioning groove 140, the multiple cutters 241 are aligned one-to-one with the multiple first through holes 110. The cooperation between the positioning groove 140 and the positioning block 242 facilitates the positioning of the base plate 100 and the housing 210, thereby aligning the cutters 241 with the first through holes 110. Preferably, there are multiple positioning grooves 140 and multiple positioning blocks 242, with each positioning groove 140 corresponding to a different positioning block 242, thereby enhancing positioning accuracy.

[0041] According to some embodiments of this utility model, refer to Figure 6 The side wall of the housing 210 is provided with a handle 243 to facilitate medical staff to pick up the housing 210.

[0042] According to some embodiments of this utility model, refer to Figure 3 and Figure 4The inner sidewall of the housing 210 is provided with a guide groove 261, which extends in the vertical direction. The outer sidewall of the pressure block 220 is provided with a protrusion 262, which is inserted into the guide groove 261 to make the pressure block 220 slide connected to the housing 210. The guide groove 261 is used to guide the protrusion 262 and the pressure block 220 to move in the vertical direction.

[0043] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The reset element 230 is a reset spring. The reset element 230 is located inside the housing 210. The upper end of the reset element 230 is connected to the pressure block 220, and the lower end of the reset element 230 is connected to the bottom of the housing 210. The reset element 230 is always in a compressed state, that is, the reset element 230 continuously applies an upward force to the pressure block 220.

[0044] According to some embodiments of this utility model, refer to Figure 3 and Figure 4 The inner peripheral wall of the housing 210 is provided with a retaining ring 270. The lower end face of the retaining ring 270 can abut against the upper end face of the protrusion 262 to restrict the upward movement of the protrusion 262. When the protrusion 262 abuts against the retaining ring 270, the cutter 241 is in the storage position. The retaining ring 270 can prevent the pressure block 220 from moving upward and detaching from the housing 210.

[0045] According to some embodiments of this utility model, refer to Figure 7 The base plate 100 and the housing 210 are rotatably connected, and the housing 210 can rotate relative to the base plate 100 so that the bottom wall of the housing 210 and the upper end surface of the base plate 100 approach or move away from each other. Preferably, the base plate 100 and the housing 210 are rotatably connected by a hinge 280.

[0046] The working process of this embodiment includes, but is not limited to: placing the bio-skin 120 on the upper surface of the base plate 100, placing the housing 210 above the bio-skin 120, and inserting the positioning block 242 into the positioning groove 140 so that the cutter 241 is aligned with the first through hole 110. Applying a downward force to the pressure block 220 to overcome the force of the reset member 230, causing the pressure block 220 to move downward, thereby driving the cutter 241 to move downward. The cutter 241 extends out of the housing 210 through the second through hole 250 and cuts and punches the bio-skin 120 downward. The cutter 241 then passes through the first through hole 110, at which point the cutter 241 is in the outgoing position. Subsequently, the pressure block 220 is released, and under the action of the reset member 230, the pressure block 220 moves upward and drives the cutter 241 to retract into the housing 210, at which point the cutter 241 is in the storage position.

[0047] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bio-skin perforation device, characterized in that, include: The base plate is provided with a plurality of first through holes, which are arranged at intervals. A punching assembly includes a cutter, a housing, a pressure block, and a reset member. The pressure block is slidably connected to the housing. The lower end face of the pressure block is provided with a plurality of cutters. The housing has a bottom wall, and the bottom wall is provided with a plurality of second through holes for the cutters to pass through. The reset member is disposed between the pressure block and the bottom wall. The cutter has an extension position and a retractable position. When the cutter is in the extension position, it passes through the second through hole and the first through hole, and the reset member applies an upward elastic force to the pressure block. When the cutter is in the retractable position, it is located inside the housing.

2. The biological skin perforation device according to claim 1, characterized in that, The bottom surface of the base plate is provided with multiple support feet, which together support the base plate.

3. The bio-skin perforation device according to claim 1, characterized in that, The upper end face of the base plate is provided with a positioning groove, and the lower end face of the housing is provided with a positioning block. The positioning block is used to position and cooperate with the positioning groove.

4. The bio-skin perforation device according to claim 3, characterized in that, The positioning slots are multiple, and the positioning blocks are multiple, with each positioning slot corresponding to one of the positioning blocks.

5. The bio-skin perforation device according to claim 1, characterized in that, The side wall of the housing is provided with a handle.

6. The bio-skin perforation device according to claim 1, characterized in that, The inner wall of the housing is provided with a guide groove that extends in the vertical direction, and the outer wall of the pressure block is provided with a protrusion that is inserted into the guide groove so that the pressure block is slidably connected to the housing.

7. The bio-skin perforation device according to claim 6, characterized in that, The reset component is a reset spring.

8. The bio-skin perforation device according to claim 7, characterized in that, The reset component is located inside the housing, with its upper end connected to the pressure block and its lower end connected to the bottom of the housing.

9. The bio-skin perforation device according to claim 8, characterized in that, The inner peripheral wall of the housing is provided with a retaining ring. The lower end face of the retaining ring can abut against the upper end face of the protrusion to restrict the protrusion from moving upward. When the protrusion abuts against the retaining ring, the cutter is located in the storage position.

10. The bio-skin perforation device according to claim 1, characterized in that, The base plate and the housing are rotatably connected, and the housing can rotate relative to the base plate so that the bottom wall of the housing and the upper surface of the base plate move closer to each other or further apart.

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