An intelligently controlled skin stretching and closing device

Abstract

The present invention discloses an intelligently controlled skin stretch closure device, which is characterized by using a stretching unit composed of a central stretching module A arranged on a connecting plate and stretching modules on both sides, and another stretching unit composed of a central stretching module B arranged on the connecting plate and stretching modules on both sides, and the two stretching units are connected by a T-shaped pull rod to form an "H"-shaped skin stretch closure device. Compared with the prior art, the present invention has the effects of no secondary trauma, minimized scars, and perfect epidermal healing effect, real-time monitoring of the stretching force, accurate control of the stretching force at a stable and safe level, achieving the best effect of stretching closure and reducing the occurrence of complications such as skin necrosis, effectively preventing the rigid stretching force from being too large or too loose, affecting the stretching effect, being able to adapt to different curved wound surfaces during installation, having good adhesion and protection, and a simple structure, and having broad application prospects in medical suture.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a closure device for intelligently regulating skin stretching suitable for orthopedic surgery. Background Art

[0002] At present, the method of using the elasticity of the skin to pull and close the wound and repair skin defects is commonly used in clinical practice. This method uses instruments to assist in pulling, aligning, locking and maintaining a moderate squeezing force on the two sides of the aligning skin edges, thereby promoting natural healing of the skin. There are currently two main types of instruments: one is temporary, rapid and repeated pulling during surgery to relax the skin and then suture the wound, such as the German-made skin stretcher, which uses hooks to hook the two sides of the skin and then pulls through a connecting rod. The pulling force is large, but because it is a temporary application during surgery, the elastic extension of the skin is limited in a short period of time, and the width of the wound that can be closed is narrow. In addition, the device is tall and large, and the structure is not compact, so it cannot be installed and used for a long time. The second type can be installed during surgery and the wound is slowly closed by adjustment after surgery. The two key parts of this type of device are the skin fixing parts on both sides of the wound and the tension closure parts. Different products have different designs. The fixing parts are generally adhered to the skin through adhesive materials. The disadvantages are insufficient strength and skin allergies. Some products are fixed through skin nails, but the strength and depth are also insufficient. Some are inserted into the skin on both sides through steel needles. The strength is greater, but the trauma is large and it is difficult to apply to irregular wounds. The tension closure parts mainly include plastic toothed buckles for gradual pulling, elastic rubber bands, etc. The pulling force is small, and the threaded rod has a large pulling force, but the direct mechanical force is difficult to adjust and quantify. It is easy to be too loose to affect the pulling effect or too tight to cause complications of skin ischemia and necrosis.

[0003] The skin staplers in the prior art are unable to accurately monitor and control the pulling force, including the pulling force of a single device or the pulling force balance between multiple devices. The tightness is adjusted by the operator's feel, which may easily lead to excessive pulling force causing skin necrosis or deep muscle ischemia and necrosis. Excessive pulling force may lead to decreased wound closure efficiency. In addition, when multiple devices are used at the same time, the uneven pulling force of each device may also lead to the simultaneous occurrence of the above two unfavorable factors, thereby affecting the treatment effect. Summary of the invention

[0004] The object of the present invention is to design an intelligent regulation skin traction closer for the deficiencies of the prior art. A "H"-shaped skin traction closer is composed of two traction units connected by an elastic threaded rod. The threaded rod is adjusted by rotating and tightening a compression nut to gradually close the wound surface. The traction force is accurately measured by an annular pressure sensor, and the traction force is monitored in real time. The best effect of traction closure is achieved by accurately controlling the traction force at a stable and safe level, reducing the occurrence of complications such as skin necrosis. By simultaneously monitoring the balance of the traction force between components, the difference in traction force caused by manual adjustment between components is effectively prevented, and large wound surfaces can be quickly and effectively traction-closed simultaneously. It has a simple structure and is easy to use, with the effects of no secondary trauma, minimized scarring, and perfect epidermal healing effect, and has broad application prospects in medical suturing.

[0005] The object of the present invention is achieved as follows: An intelligent regulation skin traction closer, characterized in that it comprises a traction unit composed of a central traction module A arranged on a connecting plate and traction modules on both sides, and another traction unit composed of a central traction module B arranged on the connecting plate and traction modules on both sides. The two traction units are connected by a "T"-shaped rod to form a "H"-shaped skin traction closer. The central traction module A, the central traction module B, and the traction modules are rectangular bodies with the same geometric dimensions, having a slot penetrating the module in the middle and hook feet on the bottom surface. The central traction module A, the central traction module B, and the traction modules are arranged on the connecting plate through the slots, and both ends are fixed to the module by bolts. A "T"-shaped groove is provided on the top surface of the central traction module A. A through hole perpendicular to the slot is provided on the central traction module B. The "T"-shaped rod is an elastic rod composed of a "T"-shaped chuck and a screw rod respectively fixed at both ends of a tension spring. One end of the tension spring is connected to the central traction module A by inserting the "T"-shaped chuck into the "T"-shaped groove, and the other end passes through the through hole of the central traction module B by the screw rod and is locked to the central traction module B by a compression nut at the other end of the "T"-shaped rod, forming two traction units connected in a "H" shape.

[0006] The hook feet on the central traction module A, the central traction module B, and the traction modules are arranged in a "pin" shape.

[0007] An annular pressure sensor is sleeved on the screw rod, and the annular pressure sensor is connected to a multi-channel pressure monitoring display arranged on the traction unit.

[0008] The compression nut is designed as a steering wheel type for convenient manual adjustment. After marking numbers on the steering wheel, the daily traction closure speed can be accurately monitored.

[0009] Both ends of the connecting plate are flanges provided with screw holes.

[0010] The connecting plate connects the pulling units by screw holes and nuts at both ends, and the connection angle can be adjusted according to different shapes of the wound surface.

[0011] Compared with the prior art, the present invention has the following significant technical effects:

[0012] 1) Real-time traction force monitor: The traction force is accurately measured and monitored in real time through an annular pressure sensor. The traction force is precisely controlled at a stable and safe level to achieve the best traction and closure effect and reduce the occurrence of complications such as skin necrosis. The traction force balance between components is simultaneously monitored to prevent manual adjustment of the tension difference between components, thus achieving rapid and effective traction and closure of large wounds.

[0013] 2) Through the hook feet on the module and their triangular position distribution, it can generate a large pulling force without causing excessive stress concentration in the pulling area, thus preventing local skin necrosis.

[0014] 3) The flat elastic pull rod is slightly higher than the skin, which prevents the device from pressing against the skin but does not affect wound dressing and the user's daily activities. The elastic pull rod can achieve adjustable elastic pulling force, which can prevent the rigid pulling force from being too large or too loose, affecting the pulling effect. The spring is bendable and can adapt to different curved wound surfaces during installation, making the device more protective.

[0015] 4) The "T"-shaped groove of the central pulling module is designed as a slide groove, which is convenient for installation and replacement of the "T"-shaped pulling rod under special circumstances.

[0016] 5) The steering wheel design of the pressure nut is convenient for manual adjustment. After marking the numbers on the steering wheel, the daily pulling and closing speed can be accurately monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 for Figure 1 Bottom view of

[0020] Figure 4 is a schematic diagram of the connecting plate structure;

[0021] Figure 5 for Figure 4 A top view of

[0022] Figure 6 This is a schematic diagram of the structure of the central pulling A module;

[0023] Figure 7 for Figure 6 Top view of

[0024] Figure 8 is Figure 6 side view of

[0025] Fig. 9 Schematic diagram of the central traction B module structure;

[0026] Fig.10 is Fig. 9 top view of

[0027] Fig.11 is Fig. 9 side view of

[0028] Fig.12 Schematic diagram of the "T"-shaped pull rod structure;

[0029] Fig.13 Schematic diagram of the specific application of the present invention. Detailed implementation method

[0030] Refer to the appendix Figure 1~Figure 3 The present invention is composed of a traction unit composed of a central traction A module 1 arranged on a connecting plate 7 and traction modules 3 on both sides of the central traction A module 1, and another traction unit composed of a central traction B module 2 arranged on the connecting plate 7 and traction modules 3 on both sides of the central traction B module 2. The two traction units are connected by a "T"-shaped pull rod 4 to form an "H"-type skin traction and closure device. The central traction A module 1, the central traction B module 2, and the traction module 3 are rectangular bodies with the same geometric dimensions, and there is a slot 12 penetrating the module in the middle, and a hook foot 13 is provided on the bottom surface; the central traction A module 1, the central traction B module 2, and the traction module 3 are arranged on the connecting plate 7 through the slot 12, and both ends are fixed by bolts through screw holes 71; one end of the "T"-shaped pull rod 4 is inserted into the "T"-shaped groove 11 by a "T"-shaped chuck 42 to connect one end of the "T"-shaped pull rod 4 with the central traction B module 2, and the other end passes through the through hole 21 by a screw rod 43 and then the "T"-shaped pull rod 4 is locked with the central traction B module 2 by a compression nut 44 to form two traction units connected in an "H" type.

[0031] The hook feet 13 on the central traction A module 1, the central traction B module 2, and the traction module 3 are arranged in a "pin" shape; an annular pressure sensor 9 is sleeved on the screw rod 43, and the annular pressure sensor 9 is connected to a multi-channel pressure monitoring display 10 arranged on the traction unit. The annular pressure sensor 9 can monitor in real time the traction force exerted by the traction device on the skin; the multi-channel pressure monitoring display 10 displays the traction forces of each traction unit in real time to guide the balanced traction and traction force regulation of each traction unit; the compression nut 44 is designed as a steering wheel type marked with numbers.

[0032] See attached Figure 4~Figure 5 The two ends of the connecting plate 7 are flanges 72 with screw holes 71. The connecting plate 7 is inserted into the square slots 12 in the middle of the central traction module A 1, the central traction module B 2 and the traction module 3, connecting the central traction module A 1, the central traction module B 2 and the traction module 3 on each side of the wound. The cross section is a rectangular design to ensure reliable fixation, prevent rotation under stress, and keep the hook foot 13 at the bottom of the module always perpendicular to the pulled skin. The traction units are connected through the screw holes 71 and nuts at both ends of the connecting plate 7, and the connection angle can be adjusted according to the different shapes of the wound surface.

[0033] See attached Figure 6~Figure 8 The central traction module A 1 is a rectangular block, with a slot 12 passing through the module in the middle, a hook foot 13 at the bottom of the module for hooking the skin and subcutaneous tissue close to the wound edge, and a "T"-shaped groove 11 on the top of the module; the "T"-shaped groove 11 is a slide groove design for inserting the "T"-shaped clamp 42, and pulling it forward to slide it into the slide groove and lock it, which is both stable and easy to remove and replace.

[0034] See attached Figure 9~Figure 11 The central traction module B 2 is a rectangular block, in the middle of which is provided with a slot 12 that passes through the module, and the bottom of the module is provided with a hook foot 13 for hooking the skin and subcutaneous tissue close to the wound edge; the central traction module B 2 is provided with a through hole 21 that is perpendicular to the slot 12.

[0035] See attached Fig.12 The "T"-shaped pull rod 4 is an elastic pull rod composed of a "T"-shaped clamp 42 and a screw 43 fixedly connected at both ends of a tension spring 41; the "T"-shaped clamp 42 is embedded in the "T"-shaped groove 11 of the central pulling module A 1 and locked; the tension spring 41 has two functions, one is to adjust the pulling force, turning the pulling into a controllable elastic tension to reduce the damage to the skin; the other is that the bendable deformation of the spring enables it to adapt to a certain wound curvature, so that the device can better adhere to the wound; the screw 43 is adjusted by the rotation and tightening of the pressure nut 44 to gradually pull the wound surface together.

[0036] See attached Fig.13The present invention is used as follows: the screw holes 71 and nuts at both ends of the connecting plate 7 are used to connect the pulling units, the connection angles of the connecting plates 7 are adjusted according to the shape of the wound surface 8, and the T-shaped pull rod 4 is used to connect the skin into an "H"-shaped skin stretching and closing device. The hook feet 13 on each module pull the skin closed along the wound edge of the wound surface 8, and according to the data monitored in real time by the annular pressure sensor 9 and the multi-channel pressure monitoring display 10, the pressure nut 44 on the "T"-shaped pull rod 4 is adjusted to achieve balanced pulling of each pulling unit and regulation of pulling force. The multi-channel pressure monitoring display 10 monitors the balance of pulling force between each component, which can effectively prevent the manually adjusted pulling force difference between each component, and achieves the best effect of fast and effective pulling and closing of a large wound surface by accurately controlling the pulling force at a stable safety level and adjusting the pulling force applied to the skin by each pulling unit, thereby reducing the occurrence of complications such as skin necrosis.

[0037] The above is only a further explanation of the present invention and is not intended to limit this patent. Any equivalent implementation of the present invention should be included in the scope of the claims of this patent.

Claims

1. An intelligently controlled skin stretch closure device, characterized in that: A traction unit is composed of a central traction A module arranged on a connecting plate and traction modules on both sides, and another traction unit composed of a central traction B module arranged on the connecting plate and traction modules on both sides. The two traction units are connected by a "T"-shaped pull rod to form an "H"-type skin tension closure device. The central traction A module, the central traction B module, and the traction modules are rectangular blocks with the same geometric dimensions. There is a slot passing through the module in the middle, and hook feet are provided on the bottom surface. The central traction A module, the central traction B module, and the traction modules are arranged on the connecting plate through the slots, and their two ends are fixed to the module by bolts through screw holes. There is a "T"-shaped groove on the top surface of the central traction A module. There is a through hole perpendicular to the slot on the central traction B module. The "T"-shaped pull rod is an elastic pull rod composed of a "T"-shaped chuck and a screw rod respectively fixed at both ends of a spring. One end of the spring is connected to the central traction A module by inserting the "T"-shaped chuck into the "T"-shaped groove, and the other end of the spring passes through the through hole into the central traction B module by the screw rod and is locked by a compression nut, connecting the two traction units into an "H"-type skin tension closure device. Among them: An annular pressure sensor is sleeved on the screw rod, and the annular pressure sensor is connected to a multi-channel pressure monitoring display arranged on the traction unit; The connecting plate connects each traction unit by screw holes and nuts at both ends, and the connection angle can be adjusted according to different shapes of the wound surface.

2. The intelligently controlled skin stretch closure device according to claim 1, characterized in that: The hook feet on the central traction A module, the central traction B module, and the traction modules are arranged in a "pin" shape.

3. The intelligently controlled skin stretch closure device according to claim 1, characterized in that: The compression nut is designed as a steering wheel type marked with numbers.

4. The intelligently controlled skin stretch closure device according to claim 1, characterized in that: Both ends of the connecting plate are flanges provided with screw holes.

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