Intelligent skin stretch closer

Abstract

The application discloses an intelligent skin stretching closer, which comprises a cable, a skin traction fixing device, an adjusting device, a driving device, a control device and a pressure sensing device; the cable is used for penetrating into the skin traction fixing device, the adjusting device and the pressure sensing device and bears the traction force of the driving device to the skin; the power device is used for pulling the cable and automatically adjusting the distance between the two skin traction mechanisms to realize the contraction and closure of the skin to be pulled on both sides of the wound; the closer further comprises a driving motor fixedly connected with a female part, a control panel electrically connected with the driving motor and a programmed controller; the closer can realize automatic control, reduces the operation and makes the process controllable.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments for plastic surgery and trauma surgery, specifically to an intelligent skin traction closure device. Background Technology

[0002] Skin defects caused by trauma are common in clinical practice, often requiring skin grafting or flap repair. However, these methods can damage another donor site. Skin traction is an effective treatment for skin defects. It involves applying continuous mechanical tension to the soft tissue, promoting tissue and cell division, proliferation, growth, increased intercellular spaces, and increased inherent elasticity, thereby obtaining "extra" intact soft tissue to close the wound. Skin traction offers advantages such as rapid wound closure, simple operation, and few complications. It is a method for the biological self-repair of soft tissue defects. Skin traction requires a special traction device (i.e., a skin traction closure device) for assistance.

[0003] Existing skin traction closure devices are only suitable for regular, simple, and small wounds, and not for complex wounds, especially those with muscle or other tissue protruding from the surrounding skin in the center. These devices cannot achieve skin traction, cannot be used simultaneously with wound negative pressure suction devices, and are prone to wound infection. Therefore, there is an urgent need for a skin traction closure device that is simple in structure, easy to use, can be combined with a wound negative pressure suction device, and can achieve free traction.

[0004] To address the above issues, the inventor applied for a patent on July 25, 2019, with application number CN201921182901.1 and authorization announcement number CN211270895U, entitled "Cable-type Skin Traction Closure Device". This device is mechanically adjustable and can only be manually adjusted by professional technicians or medical personnel according to the wound healing situation. The intelligent aspect needs to be improved. This application mainly improves upon this patented product to achieve intelligent control. Summary of the Invention

[0005] The purpose of this invention is to provide a device that is simple in structure, easy to use, and can be combined with a wound negative pressure suction device to achieve automatic adjustment of the skin traction closure device.

[0006] The technical solution of the intelligent skin traction closure device of this invention is implemented as follows:

[0007] An intelligent skin traction closure device is characterized by comprising a cable, a skin traction fixation device, an adjustment device, a drive device, a control device, and a pressure sensing device.

[0008] Cables are used to pass through the skin traction fixation device, adjustment device, and pressure sensing device to bear the traction force of the skin pulled by the drive device.

[0009] The skin traction fixation device includes a first fixation hook and a second fixation hook; the first fixation hook and the second fixation hook are divided into upper and lower parts. The lower part is provided with a hook and a fixing screw. A washer is fitted on the fixing screw, and a fixing groove is provided on the washer. The fixing screw and the fixation hook are threaded together. The upper part is provided with a fixing pin and a cable hole. The fixing pin and the fixation hook are threaded together. The fixation hook is used to fix the skin and cable to be pulled and to transmit traction force between the skin and the cable.

[0010] The adjusting device includes a flexible conduit, a sliding sleeve, a pressure adjusting spring, a graduated sleeve, and a fixing sleeve, which are sequentially pushed and fitted together. The pressure adjusting spring is installed inside the sliding sleeve, with one end fitted outside the graduated sleeve and the two slidably connected. The other end of the sleeve has a smaller diameter and a step, which abuts against the flexible conduit. The outer wall of the graduated sleeve is equipped with a pressure scale. The adjusting device is used to adjust the distance between the two skin traction and fixing devices to achieve the contraction and closure of the skin to be pulled on both sides of the wound. The fixing sleeve has a cable hole for the cable to pass through, and a set screw and a connection hole on the side wall. The fixing sleeve and the connecting fixing device of the driving device are fastened at one end. After locking, the fixing sleeve stops and limits one side of the adjusting device.

[0011] The control device includes a main control unit and a control panel; the main control unit and the control panel are connected by a cable or wirelessly, and the main control unit and the programmable controller are connected by a cable or wirelessly.

[0012] Furthermore, the adjustment device includes a flexible conduit, a sliding sleeve, a pressure sensor, a pressure regulating spring, a scale sleeve, and a fixing sleeve that are sequentially pushed and cooperated with the skin traction and fixation device. The drive motor drives the cable through the winding wheel on its rotating shaft. When the fixing hook moves relative to the cable, it sequentially drives the flexible conduit, the sliding sleeve, the pressure sensor, and the pressure regulating spring to move.

[0013] Furthermore, the driving device includes a drive motor, a programmable controller, and a connecting and fixing device; the drive motor shaft has a winding wheel at one end, with a wire groove in its middle, the winding wheel and the shaft are fastened together, and a fixing hole is provided on the winding wheel, with one end of the cable fastened to the fixing hole; the drive motor is used to pull the cable and adjust the distance between the two skin traction fixing devices to achieve the contraction and closure of the skin to be pulled on both sides of the wound; the connecting hole on the side wall of the fixing sleeve is fastened to one end of the connecting and fixing device of the drive device, and the drive motor and the programmable controller are connected by a connecting wire; the programmable controller and the main control device are connected by a connecting wire or wirelessly, and the programmable controller receives the data and instructions transmitted by the main control device and controls the state of the drive motor.

[0014] Furthermore, the fixing seat is a sleeve with a step, and a set screw is provided at the step, which is threadedly connected to the fixing seat. Screwing in the set screw can fix one end of the cable. The fixing seat and the drive motor are fastened together by a connecting fixing device. The adjusting device includes a flexible tube, a sliding sleeve, a graduated sleeve, a pressure sensor, a fixing seat, and a gear sleeve, which are sequentially pushed and cooperated with the skin traction fixing device. The gear sleeve is fitted outside the fixing seat sleeve and is slidably connected to it. A gear is installed on the motor rotating shaft of the drive motor. The gear is fastened to the rotating shaft and meshes with the gear sleeve. The gear can drive the gear sleeve to move forward or backward.

[0015] Furthermore, the fixing seat is a sleeve with a step, and a set screw is provided at the step, which is threadedly connected to the fixing seat. Screwing in the set screw can fix one end of the cable. The fixing seat and the drive motor are fastened together by a connecting fixing device. The adjusting device includes a flexible conduit, a sliding sleeve, a pressure adjusting spring, a scale sleeve, a pressure sensor, a fixing seat, and a sliding sleeve, which are sequentially pushed and cooperated with the skin traction fixing device. The sliding sleeve is fitted outside the fixing seat sleeve. A drive screw sleeve is fitted on the motor rotating shaft of the drive motor. The rotating shaft is threadedly connected to the drive screw sleeve. A push rod sleeve is installed outside the drive screw sleeve. The two are slidably connected. A push rod is fixedly installed on the push rod sleeve. The other end of the push rod is fixedly connected to the sliding sleeve. The rotating shaft can drive the drive screw sleeve to move forward or backward, thereby driving the push rod sleeve, push rod, and sliding sleeve to move forward or backward.

[0016] Furthermore, the tension value is input on the control panel, and the programmable controller compares it with the value sensed by the pressure sensor. The programmable controller controls the state of the drive motor by sensing the magnitude of the two values.

[0017] Furthermore, the control panel is configured as a remote control device, which is wirelessly connected to the main control device. The remote control device panel is equipped with function buttons for adjusting tension, adjusting frequency, switching on and off, numerical input control buttons, and a display screen.

[0018] Furthermore, the pressure sensing device includes a pressure sensor and a connecting wire; the pressure sensor is installed between the sliding sleeve and the pressure adjusting spring, and the sliding sleeve can be configured to be fitted inside the graduated sleeve, with the two slidably connected.

[0019] Furthermore, the pressure sensing device includes a pressure sensor and a connecting wire; the pressure sensor is positioned in one of the following locations: between the pressure adjusting spring and the scale sleeve, or between the scale sleeve and the fixed base; the pressure sensor and the main control device are connected by a connecting wire; the scale sleeve may not be provided.

[0020] Furthermore, the cable is one of the following: metal cable, steel wire, nylon rope, or flexible plastic rope.

[0021] By adopting the above technical solution, the beneficial effects of the cable-type skin traction closure device of the present invention are as follows: The power device of the present invention is used to pull the cable and automatically adjust the distance between the two skin traction mechanisms to achieve contraction and closure of the skin to be pulled on both sides of the wound. It also includes a drive motor fixedly connected to the main component, a control panel electrically connected to the drive motor, and a programmable controller. This enables automated control, reduces operation, and makes the process controllable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0024] Figure 2 This is a control principle diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0027] Among them: 1-Cable, 2-Fixing hook one, 3-Flexible conduit, 4-Sliding sleeve, 5-Pressure sensor, 6-Pressure adjusting spring, 7-Fixing sleeve, 8-Graded sleeve tube, 9-Setting screw, 10-Fixing nail, 11-Winding wheel, 12-Drive motor, 13-Connecting and fixing device, 14-Gear sleeve, 15-Gear, 16-Graded sleeve, 17-Sliding sleeve, 18-Push rod, 19-Limit sleeve, 20-Push rod sleeve, 21-Drive screw sleeve, 22-Fixing seat, 23-Fixing pin screw, 24-Fixing hook two. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1, such as Figure 1 As shown, an intelligent skin traction closure device includes a cable 1, a skin traction fixation device, an adjustment device, a drive device, a control device, and a pressure sensing device.

[0030] Cable 1 is used to pass through the skin traction fixation device, adjustment device, and pressure sensing device to bear the traction force of the skin pulled by the drive device; cable 1 can be one of metal cable 1, steel wire, nylon rope, or flexible plastic rope.

[0031] The skin traction fixation device includes a first fixing hook 2 and a second fixing hook 24. The first fixing hook 2 and the second fixing hook 24 are divided into upper and lower parts. The lower part is provided with a hook and a fixing screw 23. A washer is fitted on the fixing screw 23 and a fixing groove is provided on the washer. The fixing screw 23 is threadedly connected to the first fixing hook 2 and the second fixing hook 24. The upper part is provided with a fixing nail 10 and a cable hole. The fixing nail 10 is threadedly connected to the fixing hook. The fixing hook is used to fix relative to the skin to be traction and the cable 1, and to transmit traction force between the skin to be traction and the cable 1.

[0032] The adjusting device includes a flexible conduit 3, a sliding sleeve 4, a pressure adjusting spring 6, a graduated sleeve 8, and a fixing sleeve 7, which are sequentially pushed and fitted together. The pressure adjusting spring 6 is installed inside the sliding sleeve 4, and one end is fitted outside the graduated sleeve 16, with the two slidably connected. The other end of the sleeve has a step at the point where the diameter of the tube decreases, which abuts against the flexible conduit 3. The outer wall of the graduated sleeve 8 is equipped with a pressure scale. The adjusting device is used to adjust the distance between the two skin traction fixing devices to achieve the contraction and closure of the skin to be pulled on both sides of the wound. The fixing sleeve 7 is provided with a wire hole for the cable 1 to pass through, and the side wall is provided with a set screw 9 and a connecting hole. The fixing sleeve 7 and the connecting fixing device 13 of the driving device are fastened together at one end. After locking, the fixing sleeve 7 stops and limits one side of the adjusting device.

[0033] The driving device includes a drive motor, a programmable controller, and a connecting and fixing device. A winding wheel 11 is provided at the end of the drive motor shaft, with a wire groove in its middle. The winding wheel 11 is securely connected to the shaft, and a fixing hole is provided on the winding wheel 11. One end of the cable 1 is securely fixed to the fixing hole. The drive motor is used to pull the cable 1, adjusting the distance between the two skin traction fixing devices 13 to achieve contraction and closure of the skin to be pulled on both sides of the wound. The connecting hole on the side wall of the fixing sleeve is securely connected to one end of the connecting and fixing device of the driving device. The drive motor and the programmable controller are connected by a connecting wire. The programmable controller and the main control device are connected by a connecting wire or wirelessly. The programmable controller receives data and instructions transmitted by the main control device and controls the state of the drive motor. The fixing base 22 is fixedly connected to one end of the cable 1.

[0034] The pressure sensing device includes a pressure sensor 5 and a connecting wire; the pressure sensor 5 is positioned in one of the following locations: such as Figure 1 As shown, between the sliding sleeve 4 and the pressure adjusting spring 6; Figure 2 As shown, between the gear sleeve 14 and the graduated sleeve 6, as Figure 3As shown, the graduated sleeve 16 and the sliding sleeve 17 are connected by connecting wires; the pressure sensor 5 and the main control device are connected by connecting wires. Alternatively, the graduated sleeve may not be provided.

[0035] The control device includes a main control unit and a control panel; the main control unit and the control panel are connected by a cable or wirelessly, and the main control unit and the programmable controller are connected by a cable or wirelessly.

[0036] The adjustment device includes a flexible conduit 3, a sliding sleeve 4, a pressure sensor 5, a pressure regulating spring 6, a scale sleeve 8, and a fixing sleeve 7, which are sequentially pushed and cooperated with the skin traction and fixation device. The drive motor 12 drives the cable 1 through the winding wheel 11 on its rotating shaft. When the fixing hook 1 2 and fixing hook 2 24 move relative to the cable 1, they sequentially drive the flexible conduit 3, the sliding sleeve 4, the pressure sensor 5, and the pressure regulating spring 6 to move.

[0037] The control panel is set as a remote control device and is wirelessly connected to the main control device. The remote control device panel is equipped with function buttons such as tension adjustment, frequency adjustment, and on / off, as well as numerical input and control buttons and a display screen.

[0038] Control Panel Figure 2 As shown, a value is input on the control panel, and the programmable controller compares it with the value sensed by the pressure sensor 5. The programmable controller controls the state of the drive motor 12 by sensing the magnitude of the two values. The user inputs the required data A according to their needs. When data A is greater than or less than data B transmitted by the pressure sensor 5, the programmable controller controls the power unit, i.e., the motor, to rotate forward or reverse, driving the sliding sleeve 17 to move left and right, thereby changing the value of the pressure sensor 5 until A equals B. The motor then stops rotating, and the fixing seat 22 is fixed to the cable 1 with the set screw 9.

[0039] Example 2, as Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that the driving device includes a drive motor, a programmable controller, a connecting and fixing device 13, and a fixing seat 22. The fixing seat 22 is fixedly connected to one end of the cable 1. The fixing seat 22 is a sleeve with a step. A set screw 9 is provided at the step and threadedly connected to the fixing seat 22. Screwing in the set screw 9 can fix one end of the cable 1. The step of the fixing seat 22 and the drive motor are fastened together by the connecting and fixing device 13. The adjusting device includes a flexible conduit 3, a sliding sleeve 4, a graduated sleeve 16, a pressure sensor 5, a fixing seat 22, and a gear sleeve 14, which are sequentially pushed and cooperated with the skin traction fixing device 13. The gear sleeve 14 is fitted outside the sleeve of the fixing seat 22 and is threadedly connected to it. A gear 15 is installed on the motor rotating shaft of the drive motor 12. The gear 15 is fastened to the rotating shaft and meshes with the gear sleeve 14. The gear 15 can drive the gear sleeve 14 to move forward or backward.

[0040] Example 3, as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the driving device includes a drive motor, a programmable controller, a connecting and fixing device 13, and a fixing base 22. The fixed base 22 is a sleeve with a step. A set screw 9 is provided at the step and threadedly connected to the fixed base 22. Screwing in the set screw 9 can fix one end of the cable 1. The fixed base 22 and the drive motor are fastened together by the connecting and fixing device 13. The adjusting device includes a flexible conduit 3, a sliding sleeve 4, a pressure adjusting spring 6, a scale sleeve 16, a pressure sensor 5, a fixed base 22, and a sliding sleeve 17, which are sequentially pushed and cooperated with the skin traction fixing device 13. The sliding sleeve 17 is fitted outside the sleeve of the fixed base 22. A drive screw sleeve 21 is fitted on the motor rotating shaft of the drive motor 12. The rotating shaft is threadedly connected to the drive screw sleeve 21. A push rod sleeve 20 is installed outside the drive screw sleeve 21. The two are slidably connected. A push rod 18 is fixedly installed on the push rod sleeve 20. The other end of the push rod 18 is fixedly connected to the sliding sleeve 17. The rotating shaft can drive the drive screw sleeve 21 to move forward or backward, thereby driving the push rod sleeve 20, the push rod 18, and the sliding sleeve 17 to move forward or backward.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent skin traction closure device, characterized in that, Includes cables, skin traction and fixation devices, adjustment devices, drive devices, control devices, and pressure sensing devices; Cables are used to pass through the skin traction fixation device, adjustment device, and pressure sensing device to bear the traction force of the skin pulled by the drive device. The skin traction fixation device includes a first fixation hook and a second fixation hook; the first fixation hook and the second fixation hook are divided into upper and lower parts. The lower part is provided with a hook and a fixing screw. A washer is fitted on the fixing screw, and a fixing groove is provided on the washer. The fixing screw and the fixation hook are threaded together. The upper part is provided with a fixing pin and a cable hole. The fixing pin and the fixation hook are threaded together. The fixation hook is used to fix the skin and cable to be pulled and to transmit traction force between the skin and the cable. The adjusting device includes a flexible conduit, a sliding sleeve, a pressure adjusting spring, a graduated sleeve, and a fixing sleeve, which are sequentially pushed and fitted together. The pressure adjusting spring is installed inside the sliding sleeve, with one end fitted outside the graduated sleeve and the two slidably connected. The other end of the sleeve has a smaller diameter and a step, which abuts against the flexible conduit. The outer wall of the graduated sleeve is equipped with a pressure scale. The adjusting device is used to adjust the distance between the two skin traction and fixing devices to achieve the contraction and closure of the skin to be pulled on both sides of the wound. The fixing sleeve has a cable hole for the cable to pass through, and a set screw and a connection hole on the side wall. The fixing sleeve and the connecting fixing device of the driving device are fastened at one end. After locking, the fixing sleeve stops and limits one side of the adjusting device. The control device includes a main control unit and a control panel; the main control unit and the control panel are connected by a cable or wirelessly, and the main control unit and the programmable controller are connected by a cable or wirelessly. The tension value is input on the control panel, and the programmable controller compares it with the value sensed by the pressure sensor. The programmable controller controls the state of the drive motor by sensing the magnitude of the two values.

2. The intelligent skin traction closure device according to claim 1, characterized in that, The adjustment device includes a flexible conduit, a sliding sleeve, a pressure sensor, a pressure adjusting spring, a graduated sleeve, and a fixing sleeve, which are sequentially pushed and cooperated with the skin traction and fixation device. The driving device includes a drive motor, a programmable controller, and a connecting and fixing device. The drive motor shaft has a winding wheel at one end and a wire groove in the middle. The winding wheel and the shaft are fastened together. The winding wheel has a fixing hole. One end of the cable is fastened to the fixing hole. The drive motor drives the cable through the winding wheel on its shaft. When the fixing hook moves relative to the cable, it sequentially drives the flexible conduit, the sliding sleeve, the pressure sensor, and the pressure adjusting spring to move.

3. The intelligent skin traction closure device according to claim 2, characterized in that, The drive motor is used to pull the cable and adjust the distance between the two skin traction fixation devices to achieve the contraction and closure of the skin to be pulled on both sides of the wound; the connection hole on the side wall of the fixation sleeve is fastened to one end of the connection fixation device of the drive device, and the drive motor and the programmable controller are connected by a connection cable. The programmable controller and the main control device are connected by a cable or wirelessly. The programmable controller receives data and instructions transmitted by the main control device and controls the status of the drive motor.

4. The intelligent skin traction closure device according to claim 1, characterized in that, The driving device includes a drive motor, a programmable controller, a connecting and fixing device, and a fixing seat. The fixing seat is a sleeve with a step, and a set screw is provided at the step, which is threadedly connected to the fixing seat. Screwing in the set screw can fix one end of the cable. The step of the fixing seat and the drive motor are fastened together by the connecting and fixing device. The adjusting device includes a flexible conduit, a sliding sleeve, a graduated sleeve, a pressure sensor, a fixing seat, and a gear sleeve, which are sequentially pushed and cooperated with the skin traction fixing device. The gear sleeve is fitted outside the fixing seat sleeve and is slidably connected to it. A gear is installed on the motor rotating shaft of the drive motor. The gear is fastened to the rotating shaft and meshes with the gear sleeve. The gear can drive the gear sleeve to move forward or backward.

5. The intelligent skin traction closure device according to claim 1, characterized in that, The driving device includes a drive motor, a programmable controller, a connecting and fixing device, and a fixing seat. The fixing seat is a sleeve with a step, and a set screw is provided at the step, which is threadedly connected to the fixing seat. Screwing in the set screw can fix one end of the cable. The step of the fixing seat and the drive motor are fastened together by the connecting and fixing device. The adjusting device includes a flexible conduit, a sliding sleeve, a pressure adjusting spring, a scale sleeve, a pressure sensor, a fixing seat, and a sliding sleeve, which are sequentially pushed and cooperated with the skin traction fixing device. The sliding sleeve is fitted outside the sleeve of the fixing seat. A drive screw sleeve is fitted on the motor rotating shaft of the drive motor. The rotating shaft is threadedly connected to the drive screw sleeve. A push rod sleeve is installed outside the drive screw sleeve, and the two are slidably connected. A push rod is fixedly installed on the push rod sleeve. The other end of the push rod is fixedly connected to the sliding sleeve. The rotating shaft can drive the drive screw sleeve to move forward or backward, thereby driving the push rod sleeve, push rod, and sliding sleeve to move forward or backward.

6. The intelligent skin traction closure device according to claim 1, characterized in that, The control panel is set as a remote control device and is wirelessly connected to the main control device. The remote control device panel is equipped with function buttons for adjusting tension, adjusting frequency, switching, numerical input and control buttons, and a display screen.

7. The intelligent skin traction closure device according to claim 3, characterized in that, The pressure sensing device includes a pressure sensor and a connecting wire; the pressure sensor is installed between a sliding sleeve and a pressure adjusting spring, and the sliding sleeve can be configured to be fitted inside a graduated sleeve, with the two slidably connected.

8. The intelligent skin traction closure device according to claim 4 or 5, characterized in that, The pressure sensing device includes a pressure sensor and a connecting wire; the pressure sensor is positioned in one of the following locations: between the pressure regulating spring and the scale sleeve, or between the scale sleeve and the fixed base; the pressure sensor and the main control device are connected by a connecting wire; the scale sleeve may not be provided.

9. The intelligent skin traction closure device according to claim 1, characterized in that, The cable is one of the following: metal cable, steel wire, nylon rope, or flexible plastic rope.

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