Medical surgical punching device

Abstract

The utility model discloses a medical operation punching device, including knife head, handle and protection kit. The handle shell is slidably assembled with the handle core with a limiting pin, the shell is provided with the limiting clamping groove with front and back clamping points, and the spring drives the handle core to realize the extension and retraction of the knife head; the protection kit is axially adjustable to control the extension length of the cutter body, and the kit is provided with the mark part matched with the orientation of the cutter body. The cutter body is provided with the multi-faceted rhombic sharp tip at the front end, and the cutter head is detachably replaced; the whole structure is simple, the punching depth is controllable, the puncture wound is small, the surgical positioning is convenient, and the utility model is suitable for the hair transplantation operation.

Description

Technical Field

[0001] This utility model belongs to the field of medical surgical instruments, specifically relating to a medical surgical punching device. Background Technology

[0002] Currently, autologous hair transplantation is the main treatment for hair loss. The procedure involves using a punch to create implantation channels in the scalp's planting area. However, most doctors in China use a "drill first, then implant" approach, employing traditional punching tools (such as ordinary puncture needles, scalpel blades, and syringe needles), which have many drawbacks. These tools are mostly disposable, and hair transplantation surgery typically requires making hundreds of holes. Due to the thinness of their sharp points, the needles often deform or break after only a few holes, leading to low surgical efficiency.

[0003] Furthermore, traditional punching tools lack effective protective measures during daily operation and storage, easily injuring medical staff and posing a risk of cross-infection. Additionally, traditional hair transplant punching tools are limited in model and mostly have round blades, making it difficult to open the holes with tweezers during implantation, thus hindering the implantation of viable hair follicles. Existing tools also struggle to precisely control the punching depth, relying entirely on the doctor's feel, often resulting in implantation channels that are too deep or too shallow, affecting follicle survival rates.

[0004] Traditional hair transplant punching devices lack angle reference marks at the tip of the blade. When punching, the tip of the blade is easily covered with blood. Doctors cannot intuitively judge the angle and direction of the needle insertion, which can easily lead to the puncture and punching deviating from the intended position or direction, resulting in deviation of the hair follicle implantation angle and reducing the survival rate. Utility Model Content

[0005] The purpose of this invention is to provide a medical surgical drilling device to solve the technical problems of existing hair transplant tools, such as uncontrollable depth, difficulty in positioning, easy damage to the blade, and large surgical trauma.

[0006] A medical surgical drilling device includes a blade head, a handle, and a protective kit. The blade head comprises a tail connector and a blade body, with a sharp point at the front end of the blade body, and the tail connector is connected to the blade body. The handle includes a housing, a core, and a spring. The housing has a through-hole, and the front end of the housing is connected to the protective kit. A limiting groove is formed on the side wall of the housing, and the limiting groove has a front locking point, a rear locking point, and a movable groove connecting the two. The core is slidably mounted inside the housing, and a limiting pin is provided on the core, which slidably engages with the limiting groove. The front end of the core is detachably connected to the tail connector. A stepped surface is provided inside the housing, and the spring is sleeved on the outside of the core, with both ends of the spring abutting against the stepped surface and the core, respectively. The protective kit is coaxially mounted on the front end of the housing and can be adjusted axially relative to the housing. A marking part is provided on the protective kit. The axial sliding of the core drives the limiting pin to switch positions within the limiting groove, allowing the blade body to extend or retract into the protective kit.

[0007] Furthermore, the tail connector is threaded to the front end of the shank.

[0008] Furthermore, the blade body has a rectangular top view; the markings on the protective kit are aligned with the long side of the blade body, and the sharp tip is composed of multiple intersecting planes forming a multifaceted rhomboid angle.

[0009] Furthermore, the blade body has a length of no more than 10mm, a width of 0.5-2.0mm, and a thickness of 0.15-0.3mm; the pointed tip angle is 30°-65°; the outer diameter of the tail connector matches the outer diameter of the front end of the shank core, and the gap between the outer diameter of the tail connector and the inner diameter of the front end of the housing is no more than 0.05mm.

[0010] Furthermore, the tail connector has a disassembly notch and anti-slip texture on its outer side; the tail connector and the blade body are fixed by integral molding, welding, interference fit or bonding.

[0011] Furthermore, the blade body is made of hard crystalline material or metal; the handle housing is made of metal or high-temperature resistant plastic; and the whole structure can withstand high-temperature and high-pressure sterilization.

[0012] Furthermore, the outer surface of the shell is provided with an ergonomic anti-slip structure, and the front section of the shell has a tapered structure.

[0013] Furthermore, the end of the handle core is provided with anti-slip texture; the limiting pin is detachably and fixedly connected to the handle core.

[0014] Furthermore, the protective kit includes a protective sleeve and a fastening nut; the protective sleeve and the fastening nut are threadedly fitted onto the front end of the housing, and the head of the protective sleeve is tapered.

[0015] This utility model has the following beneficial effects: 1. The blade has a multi-faceted rhomboid tip, which disperses the puncture force, makes it less prone to bending and deformation, and has a longer service life; the flat and long blade makes long planting holes, which facilitates hair follicle implantation, with smaller incisions and faster postoperative recovery; 2. The protective kit markings and the long side of the blade are aligned, so that even when bloodstains cover the blade, the puncture angle can still be accurately controlled to ensure the uniform direction of hair follicle implantation and improve the survival rate of hair follicles. 3. The protective kit is axially adjustable, precisely limiting the maximum extension length of the blade and freely setting the puncture depth, thus eliminating the drawbacks of relying solely on the doctor's touch. 4. The limit pin and the limit slot work together to quickly extend the blade for drilling and retract it for storage, preventing accidental punctures to medical staff. 5. The blade head is quick to assemble and disassemble, and different sizes of blade heads can be replaced according to the surgical scenario; the whole body supports repeated high temperature and high pressure sterilization and can be reused multiple times; 6. The optimized assembly gap design ensures stable parts fit, reduces shaking during puncture, and enhances the stability of surgical procedures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a medical surgical drilling device according to this utility model.

[0017] Figure 2 This is a schematic diagram of the handle structure of a medical surgical punching device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the handle structure of a medical surgical punching device according to the present invention.

[0019] Figure 4 This is a schematic diagram of the handle core structure of a medical surgical punching device according to this utility model.

[0020] Figure 5 This is a schematic diagram of the protective kit for a medical surgical drilling device according to this utility model.

[0021] Figure 6 This is a schematic diagram of the blade structure of a medical surgical drilling device according to this utility model.

[0022] Figure 7 This is a schematic diagram illustrating the installation method of a medical surgical drilling device according to this utility model.

[0023] Figure 8 This is a schematic diagram illustrating the installation method of a medical surgical drilling device according to this utility model.

[0024] Figure 9 This is a schematic diagram illustrating the usage of a medical surgical drilling device according to this utility model.

[0025] Figure 10This is a schematic diagram illustrating the usage of a medical surgical drilling device according to this utility model.

[0026] Figure 11 This is a schematic diagram illustrating the method of adjusting the position of the protective sleeve for a medical surgical punching device according to this utility model.

[0027] Figure 12 This is a schematic diagram of the blade structure of a medical surgical drilling device according to this utility model. Detailed Implementation

[0028] like Figures 1 to 12 As shown, a medical surgical drilling device includes a blade (1), a handle (2), and a protective kit (3); the blade (1) includes a tail connector (102) and a blade body (101), the front end of the blade body (101) is provided with a sharp point (1012), and the tail connector (102) is connected to the blade body (101); the handle (2) includes a housing (201), a handle core (202), and a spring (203); the housing (201) is internally permeable, the front end of the housing (201) is connected to the protective kit (3), and a limiting slot (2015) is provided on the side wall of the housing (201), the limiting slot (2015) is provided with a front locking point (2015-2), a rear locking point (2015-1), and a movable slot (2015-3) connecting the two; the handle core (202) is slidably assembled in the housing (201), and the handle core... (202) is provided with a limiting pin (2024), which is slidably engaged in the limiting slot (2015); the front end of the shank core (202) is detachably connected to the tail connector (102); a stepped surface (2016) is provided inside the housing (201), and the spring (203) is sleeved on the outside of the shank core (202), with the two ends of the spring (203) abutting against the stepped surface (2016) and the shank core (202) respectively; the protective kit (3) is coaxially installed at the front end of the housing (201), and the protective kit (3) can be axially adjusted relative to the housing (201); the protective kit (3) is provided with a marking part (3011); by sliding the shank core (202) axially, the limiting pin (2024) is driven to switch positions in the limiting slot (2015), so that the blade (101) can extend or be stored in the protective kit (3).

[0029] The tail connector (102) is threaded to the front end of the handle core (202).

[0030] The blade (101) has a rectangular outline when viewed from above; the marking part (3011) on the protective kit (3) is in the same position as the long side of the blade (101), and the sharp tip (1012) is composed of multiple intersecting planes forming a multi-faceted rhomboid sharp corner.

[0031] The blade body (101) has a length of no more than 10 mm, a width of 0.5-2.0 mm, and a thickness of 0.15-0.3 mm; the pointed tip (1012) has an included angle of 30°-65°; the outer diameter of the tail connector (102) matches the outer diameter of the front end of the shank core (202), and the gap between the outer diameter of the tail connector (102) and the inner diameter of the front end of the housing (201) is no more than 0.05 mm.

[0032] The tail connector (102) has a disassembly notch and anti-slip texture on the outside; the tail connector (102) and the blade body (101) are fixed by integral molding, welding, interference fit or bonding.

[0033] The blade body (101) is made of hard crystal material or metal; the handle housing (201) is made of metal or high-temperature resistant plastic; the whole body can withstand high temperature and high pressure sterilization.

[0034] The outer surface of the shell (201) is provided with an ergonomic anti-slip structure, and the front section of the shell (201) is a conical structure.

[0035] The end of the handle core (202) is provided with anti-slip texture; the limiting pin (2024) is detachably and fixedly connected to the handle core (202).

[0036] The protective kit (3) includes a protective sleeve (301) and a fastening nut (302); the protective sleeve (301) and the fastening nut (302) are threadedly installed on the front end of the housing (201), and the head of the protective sleeve (301) is conical.

[0037] During assembly, thread the blade tip onto the front end of the shank, then sequentially attach the fastening nut and protective sleeve to the front end of the housing. Rotating the fastening nut moves the protective sleeve axially along the housing, changing the maximum extension length of the blade and thus controlling the puncture depth. During surgery, push the tail of the shank; the limiting pin slides along the limiting groove to the front locking point, extending the blade for drilling. After the operation, pull the shank backward; the limiting pin engages at the rear locking point, and the blade retracts for safer operation. During surgery, align the long side of the blade with the markings on the protective sleeve for precise control of the puncture direction. After use, the detachable blade tip can be cleaned, and the entire device can be sterilized under high temperature and pressure for reuse.

[0038] In the diagram: 1-Cutter head, 2-Handle, 3-Protective kit; 101-Cutter body, 102-Tail connector, 1012-Sharp tip; 201-Shell, 202-Handle core, 203-Spring, 2016-Step surface, 2011-Shell front section head, 2015-Limiting slot, 2015-1 Rear end locking point, 2015-2 Front end locking point, 2015-3 Moving slot, 2025-Tail control end, 2026-Rear connecting rod, 2023-Middle connecting rod, 2022-Front connecting rod, 2024-Limiting pin; 3011-Marking part, 301-Protective sleeve, 302-Fasting nut.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A medical surgical punching device, characterized in that, The device includes a blade head, a handle, and a protective kit. The blade head comprises a tail connector and a blade body, with a sharp point at the front end. The tail connector is connected to the blade body. The handle includes a housing, a shank core, and a spring. The housing is internally continuous, with the protective kit connected to the front end. A limiting groove is formed on the side wall of the housing, featuring a front locking point, a rear locking point, and a movable groove connecting the two. The shank core is slidably mounted within the housing, and a limiting pin is provided on the shank core, slidingly engaging within the limiting groove. The front end of the shank core is detachably connected to the tail connector. A stepped surface is provided inside the housing, and the spring is sleeved on the outside of the shank core, with both ends abutting against the stepped surface and the shank core, respectively. The protective kit is coaxially mounted on the front end of the housing and is axially adjustable relative to the housing. A marking portion is provided on the protective kit. The axial sliding of the shank core causes the limiting pin to switch positions within the limiting groove, allowing the blade body to extend or retract into the protective kit.

2. The medical surgical punching device according to claim 1, characterized in that: The tail connector is threaded to the front end of the handle core.

3. The medical surgical punching device according to claim 1, characterized in that: The blade body has a rectangular outline when viewed from above; the markings on the protective kit are aligned with the long side of the blade body, and the sharp tip is composed of multiple intersecting planes forming a multifaceted rhomboid angle.

4. The medical surgical punching device according to claim 1, characterized in that: The blade body is no more than 10mm in length, 0.5-2.0mm in width, and 0.15-0.3mm in thickness; the pointed tip angle is 30°-65°; the outer diameter of the tail connector matches the outer diameter of the front end of the shank core, and the gap between the outer diameter of the tail connector and the inner diameter of the front end of the housing is no more than 0.05mm.

5. The medical surgical punching device according to claim 1, characterized in that: The tail connector has a disassembly notch and anti-slip texture on the outside; the tail connector and the blade body are fixed by integral molding, welding, interference fit or bonding.

6. The medical surgical punching device according to claim 1, characterized in that: The blade body is made of hard crystalline material or metal; the handle shell is made of metal or high-temperature resistant plastic; the whole structure can withstand high-temperature and high-pressure sterilization.

7. The medical surgical punching device according to claim 1, characterized in that: The outer surface of the shell is provided with an ergonomic anti-slip structure, and the front section of the shell has a conical structure.

8. The medical surgical punching device according to claim 1, characterized in that: The end of the handle core is provided with anti-slip texture; the limiting pin is detachably and fixedly connected to the handle core.

9. The medical surgical punching device according to claim 1, characterized in that: The protective kit includes a protective sleeve and a fastening nut; the protective sleeve and the fastening nut are threadedly installed at the front end of the housing, and the head of the protective sleeve is tapered.

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