Electric skin taking device

Abstract

The invention discloses an electric skin taking device and relates to the technical field of medical instruments, the electric skin taking device comprises a rack and a connecting rod, the end of the rack abuts against the end of the connecting rod, the seam of the rack and the connecting rod is in threaded connection with the bottom end of a stand column, and the upper end of the stand column is fixedly connected with the four corners of a frame; guide grooves are formed in the side walls of the racks, the guide grooves of the racks are oppositely arranged, a skin taking assembly is slidably installed between the opposite faces of the racks, and a skin supporting assembly is installed on the upper surface of the connecting rod; the lower surface of the rack is flush with the lower surface of the connecting rod; a control assembly is installed on the upper surface of the frame, and the skin taking assembly and the skin supporting assembly are both electrically connected with the control assembly. According to the electric skin taking device, skin taking operation of a patient can be completed by one person, skin source continuity, integrity and thickness consistency of skin taking can be guaranteed, meanwhile, operation is convenient, and the holding hand feeling is good.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an electric skin-grabbing device. Background Art

[0002] During the surgical treatment of large-area burns, when the patient has a large area of skin defect and the body cannot heal on its own, the surgeon needs to cover the wound with skin grafting to promote faster healing of the wound. Skin grafting plays a very important role in early burns, trauma emergency, late burns, plastic surgery, reconstruction, and wound modification. Skin transplant surgery cannot be separated from a skin harvester.

[0003] Existing skin harvesting machines require the cooperation of multiple people to pull the patient's skin, which can easily lead to discontinuous skin harvesting and uneven skin harvesting. At the same time, the consistency of the skin source thickness cannot be guaranteed. In addition, the skin harvesting machine has a poor grip and is inconvenient to operate.

[0004] How to develop an electric skin harvesting device that can complete the skin harvesting operation on patients by one person, ensure the continuity, integrity and thickness consistency of the skin source, and be easy to operate and improve the grip feel has become a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the Invention

[0005] The purpose of the present invention is to provide an electric skin-removing device to solve the problems listed in the background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an electric skin-removing device, comprising a rack and a connecting rod, wherein the ends of the rack abut against the ends of the connecting rod, the joints between the rack and the connecting rod are threadedly connected to the bottom ends of the columns, and the upper ends of the columns are fixedly connected to the four corners of the frame; The side walls of the rack are provided with guide grooves, and the guide grooves of the rack are arranged opposite to each other. A skin-taking assembly is slidably mounted between the opposite surfaces of the racks, and a skin-supporting assembly is mounted on the upper surface of the connecting rod; The lower surface of the rack is flush with the lower surface of the connecting rod; A control component is installed on the upper surface of the frame, and the skin-taking component and the skin-supporting component are both electrically connected to the control component.

[0007] Preferably, the skin removing assembly includes a blade and a cutter head, the front end of the cutter head is arc-shaped, a vibration frame is installed on the bottom surface of the cutter head, the lower surface of the vibration frame is clamped with the blade, a drive motor is installed inside the cutter head, and the working end of the drive motor is transmission-connected to the upper surface of the vibration frame.

[0008] Preferably, it further includes an angle adjustment component, the angle adjustment component includes a carriage, and the upper surface of the carriage is fixedly connected to the lower surface of the tool head through a telescopic rod; The side wall of the carriage cooperates with the rack; The carriage is rotatably connected to the tool head.

[0009] Preferably, the carriage includes two vertically arranged sliders and a horizontally arranged slider, and the two vertically arranged sliders are respectively fixedly connected to the ends of the horizontally arranged slider; Guide blocks are installed on the opposite sides of the two vertically arranged sliders, and the guide blocks cooperate with the guide grooves; A turntable is installed between the opposite surfaces of the other ends of the two vertically arranged sliders, and the turntable is rotatably connected to the front side wall of the tool head.

[0010] Preferably, the telescopic rod is arc-shaped, and the rotation center of the telescopic rod is the rotation axis of the turntable; A rotation scale is engraved on the outer side wall of the telescopic rod.

[0011] Preferably, servo motors are fixedly installed at both ends of the upper surface of the horizontally arranged slider, the working ends of the servo motors are connected to gears through speed reducers, and the gears are meshed with the rack.

[0012] Preferably, the skin stretching component includes a skin stretching roller and an abutting plate, a swing arm is installed on the side wall of the skin stretching roller, the upper end of the swing arm is connected to the upper end of the abutting plate through a hinge, and the lower end of the abutting plate is fixedly connected to the upper surface of the connecting rod; The middle part of the swing arm is connected to the abutting plate through a spring; An electromagnet is installed inside the abutting plate, an iron sheet is installed inside the swing arm, and the installation position of the iron sheet corresponds to the position of the electromagnet.

[0013] Preferably, the control component includes a handle, a start switch is installed on the side wall of the handle, and an electromagnet switch is installed at the upper end of the handle; A PLC controller is installed inside the handle, and the start switch and the electromagnet switch are both electrically connected to the PLC controller.

[0014] Preferably, the drive motor and the servo motor are both electrically connected to the start switch, and the electromagnet is electrically connected to the electromagnet switch.

[0015] Compared with the prior art, the beneficial technical effects of the present invention: An electric skin grafting device of the present invention stretches the patient's skin through a skin stretching assembly, and determines the area of the patient's skin to be grafted by the lower surface formed by the rack and the connecting rod, which can ensure that the angle of the blade cutting into the patient's skin remains consistent. Further, the consistency of the skin grafting thickness is ensured; at the same time, the blade and the cutter head are driven by a servo motor to complete the skin grafting operation on the patient, ensuring the continuity and integrity of the skin graft during the skin grafting process; further, the shape of the handle conforms to ergonomics, facilitating the operation of medical staff, and the operation is simple, and the manual intervention link is greatly reduced, reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings.

[0017] Figure 1 Schematic perspective view of an electric skin grafting device of the present invention Figure 1 ; Figure 2 Schematic perspective view of an electric skin grafting device of the present invention Figure 2 ; Figure 3 Front view schematic diagram of an electric skin grafting device of the present invention; Figure 4 Top view schematic diagram of an electric skin grafting device of the present invention; Figure 5 Schematic perspective view of the rack of the present invention Figure 1 ; Figure 6 Schematic perspective view of the rack of the present invention Figure 2 ; Figure 7 Schematic perspective view of the connecting rod of the present invention.

[0018] Description of reference numerals: 1, column; 2, rack; 3, connecting rod; 4, skin stretching roller; 5, swing arm; 6, spring; 7, abutting plate; 8, hinge; 9, blade; 10, cutter head; 11, carriage; 12, servo motor; 13, gear; 14, frame; 15, handle; 16, start switch; 17, electromagnet switch; 18, telescopic rod. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Such as Figure 1-7As shown, an electric skin-taking device includes a rack 2 and a connecting rod 3, the ends of the rack 2 are in contact with the ends of the connecting rod 3, the joints between the rack 2 and the connecting rod 3 are threadedly connected to the bottom end of the column 1, and the upper end of the column 1 is fixedly connected to the four corners of the frame 14; The side walls of the rack 2 are provided with guide grooves, and the guide grooves of the rack 2 are arranged opposite to each other. A skin-taking assembly is slidably mounted between the opposite surfaces of the rack 2, and a skin-supporting assembly is mounted on the upper surface of the connecting rod 3; The lower surface of the rack 2 is flush with the lower surface of the connecting rod 3; A control component is mounted on the upper surface of the frame 14, and the skin-taking component and the skin-supporting component are both electrically connected to the control component; When working, the skin-stretching assembly can stretch the patient's skin, making the patient's skin in a taut state, ensuring that the height between the skin and the skin-grafting assembly remains consistent. At the same time, the lower surface of the rack is flush with the lower surface of the connecting rod, which can further ensure the consistency of the thickness of the skin graft. In addition, the skin-picking component always runs along the rack during the skin-picking process, which can ensure the integrity of the skin piece during the skin-picking process and keep the appearance of the skin piece regular.

[0021] Specifically, the skin-removing assembly includes a blade 9 and a cutter head 10. The front end of the cutter head 10 is arc-shaped. A vibration frame is installed on the bottom surface of the cutter head 10. The lower surface of the vibration frame is clamped with the blade 9. A drive motor is installed inside the cutter head 10. The working end of the drive motor is transmission-connected to the upper surface of the vibration frame. The drive motor drives the blade through the vibration frame to complete the cutting operation on the patient's skin, and enables the obtained skin flap to be collected along the arc-shaped front end of the cutter head.

[0022] Specifically, it also includes an angle adjustment component, which includes a slide 11, and the upper surface of the slide 11 is fixedly connected to the lower surface of the cutter head 10 through a telescopic rod 18; The side wall of the slide 11 cooperates with the rack 2; The slide 11 is rotatably connected to the cutter head 10, and the cutter head can drive the blade to rotate around the slide through the telescopic rod, thereby controlling the angle at which the blade cuts into the patient's skin and, further, controlling the thickness of the skin graft when the patient is removed. When the angle at which the blade enters the patient's skin is greater, a thicker skin graft is removed from the patient, and when the angle at which the blade enters the patient's skin is less, a thinner skin graft is removed from the patient.

[0023] Specifically, the slide 11 includes two vertical sliders and one horizontal slider, and the two vertical sliders are fixedly connected to the ends of the horizontal slider respectively; Guide blocks are installed on the opposite sides of the two vertically arranged sliders, and the guide blocks are engaged with the guide grooves; A turntable is installed between the opposite faces of the other ends of the two vertically arranged sliders, and the turntable is rotatably connected to the front side wall of the cutter head 10.

[0024] Specifically, the telescopic rod 18 is arc-shaped, and the rotation center of the telescopic rod 18 is the rotation axis of the turntable; Rotation scales are engraved on the outer side wall of the telescopic rod 18; The telescopic rod 18 has a self-locking function. After the medical staff adjusts the angle at which the blade cuts into the patient's skin through the telescopic rod, the telescopic rod is self-locked to maintain a fixed state, so that the blade cuts out a skin flap with an appropriate thickness.

[0025] Specifically, servo motors 12 are fixedly installed at both ends of the upper surface of the horizontally arranged slider. The working ends of the servo motors 12 are connected to the gears 13 through a transmission. The gears 13 are engaged with the rack 2. The servo motors drive the blade to complete the operation of cutting the skin flap. During the operation of the servo motors, they can maintain a uniform speed, ensuring the continuity of the skin and reducing the risk of discontinuity in skin harvesting caused by manually driving the cutter head to move.

[0026] Specifically, the skin stretching assembly includes a skin stretching roller 4 and an abutting plate 7. A swing arm 5 is installed on the side wall of the skin stretching roller 4. The upper end of the swing arm 5 is connected to the upper end of the abutting plate 7 through a hinge 8. The lower end of the abutting plate 7 is fixedly connected to the upper surface of the connecting rod 3; The middle part of the swing arm 5 is connected to the abutting plate 7 through a spring 6; An electromagnet is installed inside the abutting plate 7, and an iron sheet is installed inside the swing arm 5, and the installation position of the iron sheet corresponds to the position of the electromagnet; The outer surface of the skin stretching roller is covered with a flexible rubber material. On the one hand, it increases the friction between the skin stretching roller and the patient's skin, ensuring the skin stretching effect. On the other hand, it reduces the discomfort of the patient when the skin stretching roller stretches the patient's skin; During operation, the electromagnet attracts the iron sheet, and the swing arm approaches the connecting rod. When the skin stretching roller contacts the patient's skin, the electromagnet is powered off, and the electromagnet is disengaged from the iron sheet. The swing arm moves away from the abutting plate under the action of the spring. Further, the skin stretching roller stretches the patient's skin to both sides. At this time, the working frame formed by the rack and the lower surface of the connecting rod contacts the area of the patient's skin to be harvested, ensuring that the contact angle between the blade and the patient's skin remains consistent.

[0027] Specifically, the control assembly includes a handle 15. A start switch 16 is installed on the side wall of the handle 15, and an electromagnet switch 17 is installed at the upper end of the handle 15; A PLC controller is installed inside the handle 15, and the start switch 16 and the electromagnet switch 17 are both electrically connected to the PLC controller.

[0028] Specifically, the drive motor and the servo motor are both electrically connected to the start switch 16, and the electromagnet is electrically connected to the electromagnet switch 17; After the medical staff disinfect the skin area to be skinned of the patient, install a blade of appropriate length on the vibrating frame, and adjust the telescopic amount of the telescopic rod to control the angle at which the blade cuts into the patient's skin; After the preparation work is completed, the medical staff hold the handle and press the electromagnet switch. The electromagnet is energized to attract the swing arm, so that the skin-supporting roller approaches the connecting rod. When the skin-supporting roller contacts the patient's skin, the medical staff release the electromagnet switch, and the electromagnet is de-energized. The skin-supporting roller completes the skin-stretching operation on the patient's skin under the action of the spring, and makes the rack and the lower surface of the connecting rod abut against the patient's skin; Press the start switch, and the drive motor and the servo motor start simultaneously. The servo motor advances at a constant speed to drive the cutter head and the blade to complete the skin-taking operation on the patient's skin; There are fewer manual intervention links during the skin-taking process, and it is less affected by human factors, which can ensure the consistency, continuity and integrity of the skin-taking thickness.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An electric skin grafting device, comprising a rack (2) and a connecting rod (3), wherein the ends of the rack (2) are in contact with the ends of the connecting rod (3), and it is characterized in that: The joint of the rack (2) and the connecting rod (3) is threadedly connected to the bottom end of the column (1), and the upper end of the column (1) is fixedly connected to the four corners of the frame (14); Guide grooves are provided on the side walls of the rack (2), and the guide grooves of the rack (2) are arranged oppositely. A leather-taking assembly is slidably installed between the opposite surfaces of the rack (2), and a leather-supporting assembly is installed on the upper surface of the connecting rod (3); The lower surface of the rack (2) is flush with the lower surface of the connecting rod (3); A control assembly is installed on the upper surface of the frame (14), and the leather-taking assembly and the leather-supporting assembly are both electrically connected to the control assembly.

2. The electric skin grafting device according to claim 1, characterized in that: The leather-taking assembly includes a blade (9) and a tool bit (10). The front end of the tool bit (10) is arc-shaped. A vibrating frame is installed on the bottom surface of the tool bit (10). The lower surface of the vibrating frame is clamped with the blade (9). A driving motor is installed inside the tool bit (10), and the working end of the driving motor is in transmission connection with the upper surface of the vibrating frame.

3. The electric skin grafting device according to claim 2, wherein: An angle adjustment assembly is further included. The angle adjustment assembly includes a sliding frame (11). The upper surface of the sliding frame (11) is fixedly connected to the lower surface of the tool bit (10) through a telescopic rod (18); The side wall of the sliding frame (11) cooperates with the rack (2); The sliding frame (11) is rotatably connected to the tool bit (10).

4. The electric skin grafting device according to claim 3, characterized in that: The sliding frame (11) includes two vertically arranged sliders and a horizontally arranged slider. The two vertically arranged sliders are respectively fixedly connected to the ends of the horizontally arranged slider; Guide blocks are installed on the opposite sides of the two vertically arranged sliders, and the guide blocks cooperate with the guide grooves; A turntable is installed between the opposite surfaces of the other ends of the two vertically arranged sliders. The turntable is rotatably connected to the front side wall of the tool bit (10).

5. An electric skin grafting device according to claim 4, characterized in that: The telescopic rod (18) is arc-shaped, and the rotation center of the telescopic rod (18) is the rotation axis of the turntable; Rotation scales are engraved on the outer side wall of the telescopic rod (18).

6. An electric skin grafting device according to claim 5, characterized in that: Servo motors (12) are fixedly installed at both ends of the upper surface of the horizontally arranged slider. The working ends of the servo motors (12) are connected to gears (13) through speed reducers, and the gears (13) are meshed with the rack (2).

7. An electric skin grafting device according to claim 1, characterized in that: The leather-supporting assembly includes a leather-supporting roller (4) and an abutting plate (7). A swing arm (5) is installed on the side wall of the leather-supporting roller (4). The upper end of the swing arm (5) is connected to the upper end of the abutting plate (7) through a hinge (8). The lower end of the abutting plate (7) is fixedly connected to the upper surface of the connecting rod (3); The middle of the swing arm (5) is connected to the abutting plate (7) through a spring (6); An electromagnet is installed inside the abutting plate (7), and an iron sheet is installed inside the swing arm (5), and the installation position of the iron sheet corresponds to the position of the electromagnet.

8. An electric skin grafting device according to claim 1, characterized in that: The control assembly includes a handle (15). A start switch (16) is installed on the side wall of the handle (15), and an electromagnet switch (17) is installed at the upper end of the handle (15); A PLC controller is installed inside the handle (15), and the start switch (16) and the electromagnet switch (17) are both electrically connected to the PLC controller.

Images