Tubular tool bit for skin micro-punching

Abstract

The utility model discloses a tubular tool bit for skin micro-punching, which comprises a tool body in a tubular structure; wherein first tangent plane structures are arranged at two opposite positions at the outer end of the cutter body, so that two blade parts are formed on the cutter body, the two blade parts are connected end to end to form an annular blade, and the joint of the two blade parts is sharp. According to the utility model, an incision with two narrow ends and a wide middle part can be cut on the skin, so that the difficulty of drawing and closing the skin incision is reduced, and the contraction effect of the skin is guaranteed while the suture effect of the incision is improved.

Description

Technical Field

[0001] This utility model relates to the field of blades, specifically to a tubular blade for micro-drilling of the skin. Background Technology

[0002] In dermatological procedures such as acne scar removal, skin grafting, neck rejuvenation surgery, and hair follicle extraction, micro-perforation of the skin is often required. The skin perforation equipment often uses a circular tube blade, which forms a sharp cutting edge by beveling the outer edge of the tube wall. The cutting edge is pressed against the skin surface and rotated to cut the skin.

[0003] Because the circular tube blade leaves a circular defect on the skin after cutting.

[0004] The edges of the wound are not easily pulled together to close, which not only affects wound healing but also reduces the extent to which the skin area shrinks after healing, making the scar more noticeable and affecting the outcome of the surgery. Utility Model Content

[0005] The purpose of this invention is to provide a tubular blade for micro-drilling skin. This tubular blade can cut incisions that are narrow at both ends and wide in the middle on the skin, reducing the difficulty of closing the skin incision and improving the suturing effect of the incision while ensuring the skin's contraction effect.

[0006] The technical solution adopted by this utility model to solve the above problems is:

[0007] A tubular blade for micro-perforation of skin includes:

[0008] The blade body has a tubular structure;

[0009] The blade body has a first cutting surface structure at two opposite positions on its outer end, so that two cutting edges are formed on the blade body. The two cutting edges are connected end to end to form a ring-shaped blade, and the junction of the two is sharp.

[0010] As a further improvement to the above technical solution, the cross-section of the blade body is an axisymmetric figure with the ratio between its major axis and minor axis ranging from 1.5 to 4, and the distance between the two blades gradually increases from the two ends of the blade towards the middle.

[0011] As a further improvement to the above technical solution, the distance between the middle positions of the two blades is the length of the major axis, and the distance between the two joints is the length of the minor axis.

[0012] As a further improvement to the above technical solution, the distance between the two contact points is the length of the major axis, and the distance between the middle positions of the two blades is the length of the minor axis.

[0013] As a further improvement to the above technical solution, the cross-section of the blade is spindle-shaped, and the cutting edge is curved.

[0014] As a further improvement to the above technical solution, the cross-section of the blade is elliptical, and the cutting edge is arc-shaped.

[0015] As a further improvement to the above technical solution, the cross-section of the blade is spindle-shaped or elliptical, and the cutting edge of the blade is arc-shaped.

[0016] As a further improvement to the above technical solution, the cross-section of the blade is rhomboid, and the cutting edge of the blade is zigzag-shaped.

[0017] As a further improvement to the above technical solution, the cross-section of the blade is rhomboid, and the cutting edge of the blade is zigzag-shaped.

[0018] As a further improvement to the above technical solution, a second cutting surface structure is provided at the junction so that a cutting surface is formed between the two blades, the two blades are connected through the cutting surface, and the connection between the blades and the cutting surface is sharp.

[0019] Compared with the prior art, this utility model has the following advantages and effects:

[0020] (1) By using the structure of the ring blade on the blade head, this utility model can form a cut on the skin with sharp ends and a width that gradually increases from the ends to the middle when cutting the skin, which reduces the difficulty of closing the cut and improves the suturing effect of the cut while ensuring the skin's contraction effect.

[0021] (2) This utility model achieves the effect of the ring blade cutting the skin at a fixed point by means of the structure at the junction of the two blades. While ensuring the accuracy of the cutting operation, it also reduces the risk of accidental cutting due to blade displacement, thereby ensuring the effect of the surgery. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0023] Figure 2 This is a top view illustrating the structure of Embodiment 1.

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 2.

[0025] Figure 4 This is a top view illustrating the structure of Embodiment 2.

[0026] Figure 5 This is a schematic diagram of the structure of Embodiment 3.

[0027] Figure 6 This is a top view illustrating the structure of Embodiment 3.

[0028] Figure 7 This is a schematic diagram of the structure of Embodiment 4.

[0029] Figure 8 This is a top view illustrating the structure of Embodiment 4.

[0030] Figure 9 This is a structural schematic diagram of Embodiment 5, Method 1.

[0031] Figure 10 This is a top view of the structure of Embodiment 5, Method 1.

[0032] Figure 11 This is a structural schematic diagram of Embodiment 5, Method 2.

[0033] Figure 12 This is a top view of the structure of Embodiment 5, Method 2.

[0034] Figure 13 This is a structural schematic diagram of Embodiment 6, Method 1.

[0035] Figure 14 This is a top view of the structural schematic of Embodiment 6, Method 1.

[0036] Figure 15 This is a structural schematic diagram of Embodiment 6, Method 2.

[0037] Figure 16 This is a top view of the structure of Embodiment 6, Method 2.

[0038] Figure 17 This is a structural schematic diagram of Embodiment 6, Method 3.

[0039] Figure 18 This is a top view of the structural schematic of Embodiment 6, Method 3.

[0040] Figure 19 This is a structural schematic diagram of Embodiment Six, Method Four.

[0041] Figure 20 This is a top view of the structural schematic of Embodiment Six, Method Four.

[0042] Among them, the blade body is 1, the blade is 11, the first cutting surface structure is 21, the second cutting surface structure is 22, the ring blade is 3, the connecting part is 4, the sharp point is 5, the blade surface is 6, the curved and bent shape is 71, the curved shape is 72, the broken line shape is 73, the cutting surface is 8, and the connecting part is 9. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0044] Example 1.

[0045] See Figure 1 , Figure 2 This embodiment discloses a tubular blade for micro-perforation of the skin, comprising a blade body 1. The blade body 1 has a tubular structure, and its cross-section is an axisymmetric figure with a ratio between its major axis and minor axis ranging from 1.5 to 4. Two opposite positions on the outer end of the blade body 1 are provided with a first cutting surface structure 21, so that two blades 11 are formed on the blade body 1. The two blades 11 are connected end to end to form an annular blade 3, and the junction 4 between the two blades is sharp 5. When the blade body 1 cuts the skin, the junction 4 between the blades 11 can be used to press against the skin area to be cut for point cutting. This ensures the accuracy of cutting and reduces the risk of miscutting due to displacement of the annular blade 3 during the cutting process. The distance between the two blades 11 gradually increases from the two ends of the blades 11 toward the middle.

[0046] In this embodiment, the distance between the middle positions of the two blades 11 is the length of the major axis, and the distance between the two connecting points 4 is the length of the minor axis.

[0047] See Figure 2 The cross-section of the blade 1 is spindle-shaped, and the blade surface 6 of the blade 11 is curved 71, which increases the area of ​​the annular blade 3 cutting the skin, thereby ensuring the shrinkage effect after subsequent skin suturing and healing.

[0048] Example 2.

[0049] See Figure 3 , Figure 4 The structure of this embodiment is basically the same as that of embodiment one. The difference is that the cross-section of the blade 1 is elliptical, which increases the cutting area and makes the transition between the sides of the blade 1 smooth, improves the appearance of the blade 1 and reduces the discomfort of holding the blade 1. The blade surface 6 of the blade part 11 is arc-shaped 72.

[0050] Example 3.

[0051] See Figure 5 , Figure 6 The structure of this embodiment is basically the same as that of embodiment one. The difference is that the distance between the two connecting points 4 is the length of the major axis, and the distance between the middle positions of the two blades 11 is the length of the minor axis. This increases the cutting area of ​​the first cutting surface structure 21 on the blade body 1, thereby reducing the processing difficulty of the blades 11 on the blade body 1. The cutting surface 6 of the blade 11 is arc-shaped 72.

[0052] Example 4.

[0053] See Figure 7, Figure 8 The structure of this embodiment is basically the same as that of embodiment three. The difference is that the cross-section of the blade body 1 is elliptical, which increases the cutting surface area and also improves the visual softness of the blade head.

[0054] Example 5.

[0055] See Figures 9-12 The structure of this embodiment is basically the same as that of Embodiment 1 and Embodiment 3. The difference is that the cross-section of the blade 1 is rhomboid, which reduces the manufacturing difficulty of the blade 1, and the blade surface 6 of the blade part 11 is zigzag 73.

[0056] Example 6.

[0057] See Figures 13-20 The structure of this embodiment is basically the same as that of embodiments one to five. The difference is that a second cutting surface structure 22 is provided on the connecting part 4 so that a cutting surface 8 is formed between the two blade surfaces 6. The two blade surfaces 6 are connected through the cutting surface 8 and the connection 9 between the blade surface 6 and the cutting surface 8 is sharp 5, which improves the stability of the blade head in making fixed-point cuts on the skin and ensures the cutting effect of the blade head.

[0058] In this embodiment, the structure of the cutting surface 8 has the following four types:

[0059] (1) When the cross-section of the blade 1 is spindle-shaped and the cutting surface 6 is curved 71, the cutting surface 8 is curved 72, such as Figure 13 , Figure 14 As shown;

[0060] (2) When the cross-section of the blade 1 is spindle-shaped and the cutting surface 6 is arc-shaped 72, the cutting surface 8 is arc-shaped and bent 71, such as Figure 15 , Figure 16 As shown;

[0061] (3) When the cross-section of the blade 1 is elliptical and the cutting surface 6 is arc-shaped 72, the cutting surface 8 is arc-shaped 72, such as... Figure 17 , Figure 18 As shown;

[0062] (4) When the cross-section of the blade 1 is rhomboid and the cutting edge 6 is zigzag-shaped 73, the cutting surface 8 is zigzag-shaped 73, such as... Figure 19 , Figure 20 As shown.

[0063] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A tubular blade for micro-perforation of the skin, characterized in that, include: The blade body has a tubular structure; The blade body has a first cutting surface structure at two opposite positions on its outer end, so that two cutting edges are formed on the blade body. The two cutting edges are connected end to end to form a ring-shaped blade, and the junction of the two is sharp.

2. The tubular blade for skin micro-perforation according to claim 1, characterized in that: The cross-section of the blade is an axisymmetric figure with a ratio between its major and minor axes ranging from 1.5 to 4, and the distance between the two blades gradually increases from the two ends of the blade towards the middle.

3. The tubular blade for skin micro-perforation according to claim 2, characterized in that: The distance between the midpoints of the two blades is the length of the major axis, and the distance between the two points where they meet is the length of the minor axis.

4. The tubular blade for skin micro-perforation according to claim 2, characterized in that: The distance between the two points of contact is the length of the major axis, and the distance between the midpoints of the two blades is the length of the minor axis.

5. The tubular blade for skin micro-perforation according to claim 3, characterized in that: The cross-section of the blade is spindle-shaped, and the cutting edge is curved.

6. The tubular blade for skin micro-perforation according to claim 3, characterized in that: The cross-section of the blade is elliptical, and the cutting edge is arc-shaped.

7. The tubular blade for skin micro-perforation according to claim 4, characterized in that: The cross-section of the blade is spindle-shaped or elliptical, and the cutting edge is arc-shaped.

8. The tubular blade for skin micro-perforation according to claim 3, characterized in that: The cross-section of the blade is rhomboid, and the cutting edge is zigzag-shaped.

9. The tubular blade for skin micro-perforation according to claim 4, characterized in that: The cross-section of the blade is rhomboid, and the cutting edge is zigzag-shaped.

10. The tubular blade for skin micro-perforation according to any one of claims 5-9, characterized in that: The junction is provided with a second cutting surface structure so that a cutting surface is formed between the two blades. The two blades are connected through the cutting surface and the connection between the blades and the cutting surface is sharp.

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