Skin micropore punching equipment
By designing a skin micro-hole punching device with a bent blade, the spindle-shaped or non-circular incision is cut, which solves the problem of difficulty in closing the incisions of existing equipment, and achieves better suture and skin shrinkage effects.
Patent Information
- Application Number
- CN202421739671.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Existing skin punching equipment cuts a circular incision on the skin, making it difficult to pull and close the edge of the wound, healing slowly and scars are obvious, affecting the surgical effect.
Design a skin micro-hole drilling device, using a cutting knife with a bent blade, the outer end of the blade is sharp, and the spacing between the inner end is less than twice the spacing between the middle position and the outer end, forming an annular blade, combined with ultrasonic or vibrating motor drive, to cut a shuttle-shaped or non-circular cutout, reducing the difficulty of pulling the cutout and improving the stitching effect.
Through the design of the annular blade, the incision forms a sharp end and an increased width in the middle on the skin, reducing the difficulty of pulling and closing the incision, improving the suture effect and ensuring the shrinkage effect of the skin.
Smart Images
Figure CN223275480U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, in particular to a skin micro-hole punching device. Background Art
[0002] Existing skin perforation devices are primarily used in dermatology for acne scar removal, skin grafting for punctate skin grafts, skin removal for neck rejuvenation procedures, and hair follicle extraction for hair transplants. They consist of three main components: a circular tubular blade, a handle, and an adjustable power supply. One end of the circular tubular blade has a chamfered outer edge, forming a sharp cutting edge. The other end is fixed to the handle. During operation, the surgeon places the blade against the skin surface. Driven by the handle, it rotates along its longitudinal axis, incising the skin and harvesting the graft.
[0003] After the existing punching equipment punches the skin, the skin defect left behind is a perfect circle. The edges of the wound are not easy to be pulled together, resulting in slow healing and obvious scars. In addition, since the incision is not easy to be pulled together, the skin area is reduced to a small extent after healing, affecting the surgical effect. Utility Model Content
[0004] The purpose of the utility model is to provide a skin micro-hole punching device, which can cut a spindle-shaped or other non-circular incision on the skin, reducing the difficulty of pulling the skin incision closed, improving the suturing effect of the incision while also ensuring the contraction effect of the skin.
[0005] The technical solution adopted by the present invention to solve the above problems is:
[0006] A skin micro-hole punching device, comprising:
[0007] cutting knife;
[0008] The cutting knife is provided with at least two blades, which are bent so that the outer ends of the blades are sharp, and the distance between the two inner ends of the blades is less than twice the distance between the middle position between the two inner ends and the outer ends of the blades. The blades are arranged in a circle around the central axis of the cutting knife and the inner ends of the blades are connected end to end in sequence to form an annular blade.
[0009] As a further improvement of the above technical solution, the blade portion includes two first blade edges, one ends of the two first blade edges are connected and there is a distance between the other ends thereof.
[0010] As a further improvement of the above technical solution, the two first cutting edges are arranged symmetrically with respect to the connection between them.
[0011] As a further improvement of the above technical solution, the two first cutting edges are arranged to be rotated around the connection between them, and the two adjacent first cutting edges of adjacent cutting parts are connected through the second cutting edge.
[0012] As a further improvement of the above technical solution, the first cutting edge is straight.
[0013] As a further improvement of the above technical solution, the first cutting edge is arc-shaped.
[0014] As a further improvement of the above technical solution, the two ends of the first blade edge are bent inwardly along the axial direction of the cutting knife, so that a blade tip is formed on the annular blade.
[0015] As a further improvement of the above technical solution, it also includes a handle, the cutting knife is installed on the handle, and the handle is provided with a driving mechanism for driving the cutting knife to vibrate and cut.
[0016] As a further improvement of the above technical solution, the driving mechanism includes a waveguide rod, an ultrasonic transducer and an ultrasonic generator for controlling the operation of the ultrasonic transducer. The waveguide rod is installed on the handle, the cutting knife is detachably installed on the outer end of the waveguide rod, the ultrasonic transducer is connected to the inner end of the waveguide rod, and the ultrasonic generator and the ultrasonic transducer are electrically connected.
[0017] As a further improvement of the above technical solution, it also includes a handle, the cutting knife is slidably arranged on the handle, and the handle is provided with a driving mechanism for driving the cutting knife to slide relative to the handle. The driving mechanism includes a push rod, the push rod is slidably arranged on the handle, and a first spring is provided between the push rod and the handle for applying a force extending from the handle to the push rod, the two ends of the first spring respectively rest on the push rod and the handle, the cutting knife is detachably mounted on the outer end of the push rod, the push rod is connected to a locking block through an elastic connecting piece, and a locking groove adapted to the locking block is provided on the handle, and a pressing block for pushing the locking block out of the locking groove is slidably provided in the locking groove.
[0018] Compared with the prior art, the present invention has the following advantages and effects:
[0019] The utility model adopts the structural arrangement of the annular blade on the cutting knife, so that when in use, the cutting knife can form an incision on the skin with sharp ends and a width gradually increasing from the two ends to the middle, thereby reducing the difficulty of closing the incision, improving the suturing effect of the incision while also ensuring the contraction effect of the skin. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a skin micro-pore punching device according to Example 1.
[0021] Figure 2 yes Figure 1 The front structural diagram of the cutting blade portion in the first mode is shown in FIG.
[0022] Figure 3 yes Figure 1 The enlarged schematic diagram of the structure of the cutting blade part is shown in FIG.
[0023] Figure 4 yes Figure 1 The front structural diagram of the cutting blade portion in the second mode is shown in FIG.
[0024] Figure 5 yes Figure 3 The front structural diagram of blade method three is shown in FIG.
[0025] Figure 6 yes Figure 3 The front structural diagram of the blade mode 4 is shown in FIG.
[0026] Figure 7 It is a front structural schematic diagram of the blade portion in the second embodiment.
[0027] Figure 8 yes Figure 7 A structural schematic diagram of another setting method of the second cutting edge is shown in FIG.
[0028] Figure 9 It is a schematic cross-sectional view of the structure of the driving mechanism in the third embodiment.
[0029] Among them, the handle 1, the cutting knife 2, the blade 21, the annular blade 22, the driving mechanism 3, the sharp shape 41, the straight shape 42, the arc shape 43, the waveguide rod 51, the ultrasonic transducer 52, the ultrasonic generator 53, the first blade edge 61, the blade tip 62, the second blade edge 63, the push rod 71, the first spring 72, the connecting piece 73, the locking block 81, the locking groove 82, the pressing block 91, and the second spring 92. DETAILED DESCRIPTION
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0031] Example 1.
[0032] See also Figures 1-6 The present embodiment provides a skin micro-pore punching device, comprising a handle 1 and a cutting knife 2. The cutting knife 2 is mounted on the handle 1 and is provided with at least two blades 21. The blades 21 are bent so that the outer ends of the blades 21 are sharp 41. The distance between the two inner ends of the blades 21 is less than twice the distance between the middle position between the two inner ends and the outer ends of the blades 21. The blades 21 are arranged in a circle around the central axis of the cutting knife 2 and the inner ends of the blades 21 are connected end to end in sequence to form an annular blade 22.
[0033] The handle 1 is provided with a driving mechanism 3 for driving the cutting blade 2 to vibrate and cut. The driving mechanism 3 includes a waveguide rod 51, an ultrasonic transducer 52, and an ultrasonic generator 53 for controlling the operation of the ultrasonic transducer 52. The waveguide rod 51 is mounted on the handle 1, and the cutting blade 2 is detachably mounted on the outer end of the waveguide rod 51. The ultrasonic transducer 52 is connected to the inner end of the waveguide rod 51. The ultrasonic generator 53 and the ultrasonic transducer 52 are electrically connected. Figure 1 As shown in .
[0034] During use, the ultrasonic generator 53 converts electrical energy into a high-frequency alternating current signal that matches the ultrasonic transducer 52. The ultrasonic transducer 52 receives the signal and operates to convert it into mechanical vibration, causing the cutting blade 2 to vibrate at a high frequency for cutting. This method of using ultrasound to cause the cutting blade 2 to vibrate at a high frequency for cutting has been widely used in the medical field, such as in the use of ultrasonic scalpels for delicate separation operations in minimally invasive surgery. Therefore, this method will not be described in detail in this embodiment.
[0035] In this embodiment, in addition to using ultrasonic waves to realize the vibration cutting of the cutting blade 2, a vibration motor can also be used to drive the cutting blade 2 to perform vibration cutting.
[0036] See also Figure 2 The blade portion 21 includes two first blade edges 61 , one end of the two first blade edges 61 are connected and there is a distance between the other ends thereof, thereby ensuring the cutting area of the annular blade 22 .
[0037] See also Figure 2 、 Figure 3 The two ends of the first blade edge 61 are bent inward along the axial direction of the cutting knife 2, so that a blade tip 62 is formed on the annular blade 22. When the cutting knife 2 performs skin cutting, the blade tip can be pressed against the skin area to be cut for fixed-point cutting, thereby ensuring the accuracy of cutting and reducing the risk of miscutting due to displacement of the annular blade 22 during the cutting process.
[0038] See also Figure 2 、 Figure 4 The two first blade edges 61 are symmetrically arranged relative to the connection between the two. The first blade edge 61 is in a straight line 42 or an arc shape 43, which increases the area of the annular blade 22 that cuts the skin, thereby ensuring the subsequent contraction effect after skin suture healing.
[0039] In this embodiment, there are two blades 21, and the two blades 21 are symmetrically arranged relative to the cutting knife 2. In addition to the number of blades 21, three blades 21 can also be used (such as Figure 5 ) or four blades 21 (as shown in Figure 6) are arranged in a circular shape and connected end to end.
[0040] Example 2.
[0041] See also Figure 7 The structure of this embodiment is basically the same as that of the first embodiment, except that: the two first blade edges 61 of the same blade portion 21 are rotated around the connection between the two, and the two adjacent first blade edges 61 of the adjacent blade portions 21 are connected by the second blade edge 63, and the first blade edge 61 is in an arc shape 43.
[0042] In addition to the arrangement of the second edge 63 in the above structure, the second edge 63 can also be arranged at the connection between the adjacent blades 21 on which the two first edges 61 are arranged in a bilaterally symmetrical manner, such as Figure 8 As shown in .
[0043] Example 3.
[0044] See also Figure 9 The structure of this embodiment is basically the same as that of embodiment 1 and embodiment 2, except that: the cutting knife 2 is slidably arranged on the handle 1, and the handle 1 is provided with a driving mechanism 3 for driving the cutting knife 2 to slide relative to the handle 1, and the driving mechanism 3 includes a pushing rod 71, which is slidably arranged on the handle 1, and a first spring 72 is provided between the pushing rod 71 and the handle 1 for applying a force extending from the handle 1 to the pushing rod 71, and the two ends of the first spring 72 respectively press against the pushing rod 71 and the handle 1, and the cutting knife 2 is detachably mounted on the outer end of the pushing rod 71, and the pushing rod 71 is connected to the locking block 81 through an elastic connecting piece 73, and a locking groove 82 adapted to the locking block 81 is provided on the handle 1, and a pressing block 91 for pushing the locking block 81 out of the locking groove 82 is slidably provided in the locking groove 82.
[0045] When not in use, the locking block 81 is located in the locking groove 82, the first spring 72 is in a compressed state, and the push rod 71 and the handle 1 are in a locked state. When in use, by pressing the pressing block 91, the pressing block 91 pushes the locking block 81 out of the locking groove 82, and the lock between the push rod 71 and the handle 1 is released. The push rod 71 is then extended from the handle 1 under the force of the first spring 72 to restore its original state and push the cutting blade 2 to penetrate the skin until the annular blade 22 of the cutting blade 2 penetrates the skin, completing the operation of forming an incision on the skin.
[0046] In this embodiment, a second spring 92 is provided between the pressing block 91 and the handle 1 for applying a force to the pressing block 91 to extend into the handle 1. The two ends of the second spring 92 respectively press against the pressing block 91 and the handle 1, which increases the difficulty of pressing the pressing block 91 to enter the handle 1, thereby reducing the risk of the cutting knife 2 extending due to accidental touching of the pressing block 91, and ensuring safety of use.
[0047] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.
Claims
1. A skin micro-hole punching device, characterized in that: include: cutting knife; The cutting knife is provided with at least two blades, which are bent so that the outer ends of the blades are sharp, and the distance between the two inner ends of the blades is less than twice the distance between the middle position between the two inner ends and the outer ends of the blades. The blades are arranged in a circle around the central axis of the cutting knife and the inner ends of the blades are connected end to end in sequence to form an annular blade.
2. The skin micro-pore perforation device according to claim 1, characterized in that: The blade portion includes two first blade edges, one ends of the two first blade edges are connected and a distance exists between the other ends of the two first blade edges.
3. The skin micro-pore punching device according to claim 2, characterized in that: The two first cutting edges are arranged symmetrically with respect to the connection between them.
4. The skin micro-pore perforation device according to claim 2, characterized in that: The two first cutting edges are arranged in a rotational manner around a connection between the two, and two adjacent first cutting edges of adjacent cutting portions are connected via the second cutting edge.
5. The skin micro-pore punching device according to claim 3, characterized in that: The first cutting edge is in a straight line shape.
6. The skin micro-perforation device according to claim 3 or 4, characterized in that: The first cutting edge is in an arc shape.
7. The skin micro-perforation device according to claim 2, characterized in that: The first blade edge is bent inwardly along the axial direction of the cutting blade between the two ends, so that a blade tip is formed on the annular blade.
8. The skin micro-pore perforation device according to claim 1, characterized in that: The utility model also comprises a handle, on which the cutting knife is mounted, and a driving mechanism for driving the cutting knife to vibrate and cut is provided on the handle.
9. The skin micro-perforation device according to claim 8, characterized in that: The driving mechanism includes a waveguide rod, an ultrasonic transducer and an ultrasonic generator for controlling the operation of the ultrasonic transducer. The waveguide rod is installed on the handle, the cutting knife is detachably installed on the outer end of the waveguide rod, the ultrasonic transducer is connected to the inner end of the waveguide rod, and the ultrasonic generator and the ultrasonic transducer are electrically connected.
10. The skin micro-perforation device according to claim 1, characterized in that: The cutting knife is slidably arranged on the handle, and a driving mechanism for driving the cutting knife to slide relative to the handle is provided on the handle. The driving mechanism includes a push rod, which is slidably arranged on the handle. A first spring is provided between the push rod and the handle for applying a force extending from the handle to the push rod, and the two ends of the first spring respectively abut against the push rod and the handle. The cutting knife is detachably mounted on the outer end of the push rod, and the push rod is connected to a locking block through an elastic connecting piece. A locking groove adapted to the locking block is provided on the handle, and a pressing block for pushing the locking block out of the locking groove is slidably provided in the locking groove.