Wound surface tension-reducing closed skin dilator

Abstract

The invention relates to the technical field of medical instruments, and discloses a wound surface tension reducing and closing skin dilator which comprises a first retractor, a second retractor and an adjusting mechanism, the first retractor and the second retractor each comprise a traction plate and a closing plate, one side of each traction plate is used for being bonded with the skin, and the other side of each traction plate is used for being bonded with the skin. The traction plate is fixedly connected to one side of the traction plate, the closing plates are fixedly connected to the other side of the traction plate, the adjusting mechanism is connected between the two closing plates, the adjusting mechanism is used for adjusting the distance between the two closing plates, and the adjusting mechanism is detachably connected with the closing plates. The problem that in the debridement process, unlocking of the skin expander easily causes secondary damage to the wound surface can be solved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a skin dilator for wound surface tension reduction and closure. Background Art

[0002] The wound tension-reducing and wound closure skin expander is a new type of medical device. It closes wounds in a needle-free, non-invasive way, avoiding secondary damage caused by sutures compressing and cutting the skin, reducing rejection reactions and shortening healing time. In addition, through tension-reducing technology, the wound is continuously relieved of tension, scar hyperplasia is inhibited, scars are minimized, and healing is beautiful.

[0003] At present, a Chinese utility model patent with announcement number CN219742786U discloses an adjustable skin wound closure device, comprising: a base plate, the bottom of which is fixedly connected with an adhesive layer, a fixing belt is fixedly connected to the side wall of the base plate, and a limiting groove is provided on the side wall of the fixing belt; a bracket, the bracket is fixedly connected to the top of the base plate, a pull rod is slidably connected to the middle part of the bracket, the bottom end of the pull rod is fixedly connected to a limiting block, and the outer surface of the pull rod is sleeved with an elastic member.

[0004] With respect to the above-mentioned related technologies, the inventors believe that when disinfecting and cleaning the wound, it is necessary to release the coordination between the fixing belt and the limit block. In the process of releasing the coordination between the fixing belt and the limit block, the fixing belt is pulled out from under the bracket, which may easily pull the skin in the opposite direction and cause secondary damage to the wound. Summary of the invention

[0005] In order to alleviate the problem that unlocking of the skin expander during the debridement process may easily cause secondary damage to the wound surface, the present application provides a skin expander for wound tension reduction and closure.

[0006] The present application provides a wound surface tension reduction and closure skin dilator, which adopts the following technical solution:

[0007] A wound tension-reducing and wound-closing skin expander comprises a first retractor, a second retractor and an adjusting mechanism, wherein the first retractor and the second retractor each comprise a retracting plate and a closing plate, one side of the retracting plate being used for bonding with the skin, the closing plate being fixedly connected to the other side of the retracting plate, the adjusting mechanism being connected between the two closing plates, the adjusting mechanism being used for adjusting the distance between the two closing plates, and the adjusting mechanism being detachably connected to the closing plates.

[0008] By adopting the above technical solution, the first retractor and the second retractor are respectively bonded to the skin on both sides of the wound, and the adjustment mechanism is used to drive the two closing plates to move towards each other, so that the two traction plates pull the skin on both sides of the wound to gather to the middle position of the wound, and counteract the incision tension in both directions, so as to achieve the purpose of non-invasive, open and tension-reducing, and promote the healing of the wound; when the wound needs to be cleaned, the adjustment mechanism is separated from the closing plate. During the separation of the adjustment mechanism from the closing plate, the adjustment mechanism will not apply a force to the closing plate that is opposite to the traction direction of the traction plate. After the adjustment mechanism is separated from the closing plate, the wound between the two closing plates is treated, thereby alleviating the problem that the unlocking of the skin expander during the cleansing process is prone to cause secondary damage to the wound.

[0009] Optionally, the adjustment mechanism includes a connecting belt and a locking assembly, wherein the locking assembly is connected to one side of the closing plate of the first puller, and the two closing plates are provided with connecting holes for the connecting belt to pass through. One end of the connecting belt in the length direction is fixedly connected to an end plate. When adjusting the distance between the two closing plates, the end of the connecting belt away from the end plate passes through the connecting hole of the second puller and the connecting hole of the first puller in sequence and then is connected to the locking assembly. The other end of the connecting belt is clamped with the closing plate of the second puller through the end plate, and the locking assembly is used to cooperate with the connecting belt for locking.

[0010] By adopting the above technical scheme, after the first retractor and the second retractor are respectively adhered to the skin on both sides of the wound, the end of the connecting belt away from the end plate is first passed through the connecting hole on the second retractor, and then passed through the connecting hole on the first retractor. The second retractor is driven by the end plate to move toward the first retractor. When the distance between the first retractor and the second retractor reaches the use requirement, the locking assembly is locked in cooperation with the connecting belt, and the movement of the connecting belt is restricted by the locking assembly, so as to adjust the distance between the first retractor and the second retractor. When the wound needs to be cleaned, the locking assembly releases the lock on the connecting belt, and the end of the connecting belt connected to the end plate is pulled away from the connecting belt, so that the connecting belt is pulled out from the two connecting holes, which is convenient for medical staff to treat the wound. During the process of pulling out the connecting belt, no force opposite to the traction direction of the traction plate is applied to the closing plate, thereby alleviating the problem that the unlocking of the skin expander during the cleansing process is easy to cause secondary damage to the wound.

[0011] Optionally, a plurality of latch teeth are provided on the connecting belt, and the plurality of latch teeth are arranged at equal intervals along the length direction of the connecting belt, the side of the latch teeth close to the end plate is a vertical surface, and the side of the latch teeth away from the end plate is an inclined surface, and the inclined surface of the latch teeth is inclined toward the direction close to the end plate, and the locking assembly includes a latch block arranged on the closing plate, the latch block is located on the side of the connecting hole away from the pulling plate, and a latch groove for locking with the latch teeth is provided on the side of the latch block close to the pulling plate, and the latch block is elastically connected to the closing plate.

[0012] By adopting the above technical solution, a plurality of latch teeth are arranged on the connecting belt along its length direction. After the connecting belt passes through the connecting hole on the first retractor, the inclined surface of the latch tooth and the pushing-up block make the end of the connecting belt away from the end plate pass under the block and move in the direction of the closing plate away from the first retractor, thereby making the two closing plates move towards each other; when the distance between the first retractor and the second retractor reaches the use requirement, the pulling of the connecting belt is stopped, the latch tooth is inserted into the slot, and the vertical surface of the latch tooth abuts against the block, and the cooperation between the slot and the latch tooth limits the end of the connecting belt away from the end plate from moving towards the closing plate, thereby locking the connecting belt; when debridement is required, the block is lifted upward to make the latch tooth disengage from the slot, thereby releasing the lock of the connecting belt, so that the end of the connecting belt away from the end plate can move towards the closing plate.

[0013] Optionally, the card block is provided with a plurality of card slots, which are spaced apart from one end of the card block close to the closing plate to one end of the card block away from the closing plate, and the plurality of card slots are used for locking with a plurality of adjacent locking teeth, and the depth of the card slots gradually increases from one end of the card block away from the closing plate to one end of the card block close to the closing plate.

[0014] By adopting the above technical solution, a plurality of slots are provided on the card block. When the connecting belt is locked, the card block limits the adjacent plurality of teeth through the plurality of slots, thereby expanding the locking range and improving the structural strength of the connection when the connecting belt and the card block are locked together, thereby improving the locking stability between the connecting belt and the card block. In addition, the depth of the slot gradually increases from the end of the card block away from the closing plate to the end of the card block close to the closing plate. When the card block and the connecting belt are locked together, the stability of the connection between the end of the card block away from the closing plate and the connecting belt is further improved, thereby reducing the possibility of accidental unlocking.

[0015] Optionally, a support seat is provided on the side of the card block close to the pulling plate, and the support seat is detachably connected to the closing plate. A clearance hole for the connecting belt to pass through is opened on the support seat, and the support seat is used to limit the movement of the card block. When the card block is locked with the connecting belt, the side of the card block close to the pulling plate abuts against the support seat.

[0016] By adopting the above technical solution, a support seat is provided on the side of the card block close to the pulling plate. When the wound tension is large, it is necessary to wrap a bandage around the first retractor and the second retractor for reinforcement. In order to prevent the card block from excessively deforming under the pressure of the bandage, the card block is supported by the support seat. When the card block is locked with the connecting belt, the side of the card block close to the pulling plate abuts against the support seat. Without affecting the locking of the card block with the connecting belt, the deformation of the card block is restricted, thereby reducing the possibility of the card block losing its original elastic recovery ability due to excessive deformation, reducing the fatigue stress level of the card block, and thus extending the service life of the card block. In addition, the support seat is detachably connected to the closing plate, which improves the convenience of producing the first retractor and reduces the difficulty of manufacturing.

[0017] Optionally, a groove is provided at one end of the support seat away from the pulling plate, and the groove passes through the two end surfaces of the support seat close to and away from the closing plate. The block is partially located in the groove, and the side wall of the block abuts against the inner wall of the groove. The groove is used to guide the movement of the block, and the block moves in a direction close to or away from the pulling plate under the guidance of the groove.

[0018] By adopting the above technical solution, grooves are opened on the support seat to pass through the two end surfaces close to or away from the closing plate, and the grooves are used to guide the movement of the card block, thereby reducing the possibility of the card block deviating from the position for locking with the connecting belt under the action of external force, thereby further improving the stability of the locking assembly and the connecting belt.

[0019] Optionally, a plurality of threading holes are formed on the closing plate, and the plurality of threading holes are respectively located on both sides of the connecting hole.

[0020] By adopting the above technical solution, threading holes are opened on both sides of the connecting hole. When the position of the wound is special and the tension of the wound is large, wires are tied between the threading holes of the two closing plates for reinforcement, thereby improving the stability of the first retractor and the second retractor in pulling the skin on both sides of the wound.

[0021] Optionally, the closing plate is perpendicular to the length direction of the traction plate, and a plurality of connecting grooves are provided on both sides of the length direction of the traction plate. The plurality of connecting grooves are spaced apart along the length direction of the traction plate, and the connecting grooves on both sides of the length direction of the connecting grooves are symmetrically arranged. The connecting grooves are provided on the side of the traction plate connected to the closing plate, and the ends of the two symmetrically arranged connecting grooves which face away from each other are inclined toward the side close to the traction plate for connecting to the skin.

[0022] By adopting the above technical solution, connecting grooves are opened on both sides of the traction plate in the length direction. When the position of the wound is special and the tension of the wound is large, the medical staff uses subcutaneous sutures to further fix the traction plate. The sutures are clamped in two symmetrically arranged connecting grooves to limit the sliding of the sutures in the length direction of the traction plate, thereby improving the stability of the connection between the sutures and the traction plate, thereby improving the tightness of the connection between the traction plate and the skin, and further improving the stability of the first retractor and the second retractor in traction of the skin on both sides of the wound.

[0023] Optionally, the adjustment mechanism includes a first adjustment component and a second adjustment component, the first adjustment component is located on a side of the first retractor away from the second retractor and connected to the first retractor, the second adjustment component is located on a side of the second retractor away from the first retractor and connected to the second retractor, and the first adjustment component and the second adjustment component respectively drive the first retractor and the second retractor to move towards each other.

[0024] By adopting the above technical solution, a first adjustment component is provided on a side of the first retractor away from the second retractor, and a second adjustment component is provided on a side of the second retractor away from the first retractor. The first adjustment component and the second adjustment component are respectively used to drive the first retractor and the second retractor to move towards each other. While the two traction plates pull the skin on both sides of the wound to gather to the middle position of the wound, the cleaning of the wound will not be affected. During wound cleaning, there is no need to release the traction of the first retractor and the second retractor on the skin, thereby alleviating the problem that unlocking the skin expander during the wound cleaning process may easily cause secondary damage to the wound.

[0025] Optionally, the first adjustment component and the second adjustment component both include an adjustment plate, a mounting plate, an adjustment strap and a second locking member, one side of the adjustment plate is used to adhere to the skin, the mounting plate is fixedly connected to the other side of the adjustment plate, the mounting plate is provided with a through hole for the adjustment strap to pass through, the second locking member of the first adjustment component is arranged on a side of the mounting plate away from the first retractor, the second locking member of the second adjustment component is arranged on a side of the mounting plate away from the second retractor, one end of the adjustment strap of the first adjustment component passes through the through hole and is fixedly connected to the closing plate of the first retractor, one end of the adjustment strap of the second adjustment component passes through the through hole and is fixedly connected to the closing plate of the second retractor, and the second locking member is used to limit the movement of the adjustment strap.

[0026] By adopting the above technical solution, the adjustment belt is moved to move the first retractor and the second retractor toward each other. When the distance between the first retractor and the second retractor reaches the usage requirement, the second locking member is used to limit the movement of the adjustment belt, thereby achieving the adjustment of the distance between the first retractor and the second retractor.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The first retractor and the second retractor are respectively bonded to the skin on both sides of the wound surface, and the adjustment mechanism is used to drive the two closing plates to move towards each other, so that the two pulling plates pull the skin on both sides of the wound surface to gather towards the middle position of the wound surface, and the incision tension is resisted in both directions, so as to achieve the purpose of non-invasive, open, and tension-reducing, and promote the healing of the wound surface. When the wound surface needs to be cleaned, the adjustment mechanism is separated from the closing plate. During the separation of the adjustment mechanism from the closing plate, the adjustment mechanism will not apply a force opposite to the pulling direction of the pulling plate to the closing plate. After the adjustment mechanism is separated from the closing plate, the wound surface between the two closing plates is treated, so as to alleviate the problem that the unlocking of the skin expander during the cleansing process is easy to cause secondary damage to the wound surface;

[0029] 2. By arranging a support seat on the side of the card block close to the pulling plate, when the wound tension is large, it is necessary to wrap a bandage around the first retractor and the second retractor for reinforcement. In order to prevent the card block from excessive deformation under the pressure of the bandage, the card block is supported by the support seat. When the card block is locked with the connecting belt, the side of the card block close to the pulling plate abuts against the support seat. Without affecting the locking of the card block with the connecting belt, the deformation of the card block is limited, reducing the possibility of the card block losing its original elastic recovery ability due to excessive deformation, reducing the fatigue stress level of the card block, and thus extending the service life of the card block;

[0030] 3. By opening connecting grooves on both sides of the traction plate in the length direction, when the position of the wound is special and the tension on the wound is large, the medical staff uses subcutaneous sutures to further fix the traction plate. The sutures are clamped in two symmetrically arranged connecting grooves to limit the sliding of the sutures in the length direction of the traction plate, thereby improving the stability of the connection between the sutures and the traction plate, thereby improving the tightness of the connection between the traction plate and the skin, and further improving the stability of the first retractor and the second retractor in traction of the skin on both sides of the wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0033] Figure 2 is a schematic structural diagram of the first retractor part in the embodiment of the present application;

[0034] Figure 3 It is a schematic structural diagram of the connecting belt part in the embodiment of the present application;

[0035] Figure 4 It is a schematic diagram of the structure of the support base part in the embodiment of the present application;

[0036] Figure 5 It is a structural schematic diagram of the card block part in the embodiment of the present application;

[0037] Figure 6 It is a schematic diagram of the structure of the adjustment mechanism part in the embodiment of the present application.

[0038] 1. The first retractor is provided with a plurality of locking members, each of which is provided with a plurality of locking members. The locking members are provided with a plurality of locking members, each of which is provided with a plurality of locking members. The locking members are provided with a plurality of locking members, each of which is provided with a plurality of locking members. DETAILED DESCRIPTION

[0039] In order to more clearly explain the overall concept of this application, the following Figure 1 -Attached Figure 6 This application is described in further detail.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The present application discloses a wound surface tension reduction and closure skin dilator. Figure 1 and Figure 2A wound tension-reducing and closed skin dilator comprises a first retractor 100, a second retractor 200 and an adjustment mechanism 300. The first retractor 100 and the second retractor 200 both comprise a retracting plate 110 and a closing plate 120, one side of the retracting plate 110 is used to adhere to the skin, and the closing plate 120 is installed on the other side of the retracting plate 110. The closing plate 120 is vertically fixedly connected to one end of the length direction of the retracting plate 110. The adjustment mechanism 300 is connected between the two closing plates 120, and the adjustment mechanism 300 is used to adjust the distance between the two closing plates 120, and the adjustment mechanism 300 is detachably connected to the closing plate 120.

[0043] The first retractor 100 and the second retractor 200 are respectively bonded to the skin on both sides of the wound, and the adjustment mechanism 300 is used to drive the two closing plates 120 to move towards each other, so that the two pulling plates 110 pull the skin on both sides of the wound to gather to the middle position of the wound, shrink or cover the wound, reduce or avoid complex skin grafting surgery, and at the same time, continuously and accurately reduce the tension on the wound, improve blood circulation, and promote wound healing; when the wound needs to be cleaned, the adjustment mechanism 300 is separated from the closing plate 120. During the separation of the adjustment mechanism 300 from the closing plate 120, the adjustment mechanism 300 will not apply a force to the closing plate 120 in the opposite direction of the pulling direction of the pulling plate 110. After the adjustment mechanism 300 is separated from the closing plate 120, the wound between the two closing plates 120 is treated, thereby alleviating the problem that the unlocking of the skin expander during the cleansing process is prone to cause secondary damage to the wound.

[0044] Reference Figure 1 and Figure 2 The adjustment mechanism 300 includes a connecting belt 310 and a locking assembly 320. The locking assembly 320 is installed on one side of the closing plate 120 of the first retractor 100, and the two closing plates 120 are provided with connecting holes 121 for the connecting belt 310 to pass through. One end of the connecting belt 310 in the length direction is fixedly connected with an end plate 330. When adjusting the distance between the two closing plates 120, the end of the connecting belt 310 away from the end plate 330 passes through the connecting hole 121 of the second retractor 200 and the connecting hole 121 of the first retractor 100 in sequence, and then is connected to the locking assembly 320. The other end of the connecting belt 310 is clamped with the closing plate 120 of the second retractor 200 through the end plate 330. The locking assembly 320 is used to cooperate with the connecting belt 310 for locking.

[0045] After the first retractor 100 and the second retractor 200 are respectively bonded to the skin on both sides of the wound, the end of the connecting belt 310 away from the end plate 330 is first passed through the connecting hole 121 on the second retractor 200, and then passed through the connecting hole 121 on the first retractor 100. Driven by the end plate 330, the second retractor 200 moves toward the first retractor 100. When the distance between the first retractor 100 and the second retractor 200 reaches the use requirement, the locking assembly 320 is locked with the connecting belt 310, and the locking assembly 320 is used to limit the movement of the connecting belt 310, thereby realizing the adjustment of the distance between the first retractor 100 and the second retractor 200.

[0046] When the wound surface needs to be cleaned, the locking assembly 320 releases the lock on the connecting belt 310, and the end of the connecting belt 310 connected to the end plate 330 is pulled out of the connecting belt 310, so that the connecting belt 310 is pulled out from the two connecting holes 121, which is convenient for medical staff to treat the wound surface. During the process of pulling out the connecting belt 310, no force opposite to the pulling direction of the pulling plate 110 is applied to the closing plate 120, which alleviates the problem that the unlocking of the skin expander during the cleaning process is likely to cause secondary damage to the wound surface.

[0047] Reference Figure 3 and Figure 4 The connecting belt 310 is provided with a plurality of latch teeth 311, which are arranged at equal intervals along the length direction of the connecting belt 310. The side of the latch teeth 311 close to the end plate 330 is a vertical surface, and the side of the latch teeth 311 away from the end plate 330 is an inclined surface. The inclined surface of the latch teeth 311 is inclined toward the direction close to the end plate 330. The locking assembly 320 includes a latch block 321 and a support seat 323 installed on the closing plate 120. The latch block 321 is located on the side of the connecting hole 121 away from the pulling plate 110. The side of the latch block 321 close to the pulling plate 110 is provided with a latch groove 322 that cooperates with the latch teeth 311 to lock, and the latch block 321 is elastically connected to the closing plate 120. In this embodiment, the latch block 321, the closing plate 120 and the pulling plate 110 are all made of plastic material.

[0048] The support seat 323 is located on the side of the block 321 close to the pulling plate 110. The support seat 323 is detachably connected to the closing plate 120. A clearance hole 324 is provided on the support seat 323 for the connecting belt 310 to pass through. The support seat 323 is used to limit the movement of the block 321. When the block 321 and the connecting belt 310 are locked, the side of the block 321 close to the pulling plate 110 abuts against the support seat 323.

[0049] After the connecting belt 310 passes through the connecting hole 121 on the first retractor 100, the inclined surface of the latch 311 and the lifting block 321 make the end of the connecting belt 310 away from the end plate 330 pass under the block 321 and move in the direction away from the closing plate 120 of the first retractor 100, so that the two closing plates 120 move towards each other. When the distance between the first retractor 100 and the second retractor 200 reaches the use requirement, the pulling of the connecting belt 310 is stopped, the latch 311 is inserted into the slot 322, and the vertical surface of the latch 311 abuts against the block 321. The cooperation between the slot 322 and the latch 311 limits the end of the connecting belt 310 away from the end plate 330 from moving towards the closing plate 120, thereby locking the connecting belt 310. When debridement is required, the block 321 is lifted upward to disengage the locking tooth 311 from the locking groove 322 , thereby releasing the lock on the connecting belt 310 and allowing the end of the connecting belt 310 away from the end plate 330 to move toward the closing plate 120 .

[0050] When the wound tension is large, it is necessary to wrap a bandage around the first retractor 100 and the second retractor 200 for reinforcement. In order to prevent the block 321 from excessively deforming under the pressure of the bandage, the support seat 323 is used to support the block 321. When the block 321 is locked with the connecting belt 310, the side of the block 321 close to the pulling plate 110 abuts against the support seat 323. Without affecting the locking of the block 321 with the connecting belt 310, the deformation of the block 321 is restricted, thereby reducing the possibility of the block 321 losing its original elastic recovery ability due to excessive deformation, reducing the fatigue stress level of the block 321, and thus extending the service life of the block 321. In addition, the support seat 323 is detachably connected to the closing plate 120, which improves the convenience of producing the first retractor 100 and reduces the difficulty of manufacturing.

[0051] A groove 325 is provided at one end of the support seat 323 away from the pulling plate 110, and the groove 325 passes through the two end surfaces of the support seat 323 close to and away from the closing plate 120. The block 321 is partially located in the groove 325, and the side wall of the block 321 abuts against the inner wall of the groove 325. The groove 325 is used to guide the movement of the block 321. Under the guidance of the groove 325, the block 321 moves in the direction close to or away from the pulling plate 110.

[0052] By opening grooves 325 on the support seat 323 that pass through the two end surfaces close to or away from the closing plate 120, the grooves 325 are used to guide the movement of the block 321, thereby reducing the possibility of the block 321 being deviated from the position for locking with the connecting belt 310 under the action of external force, thereby further improving the stability of the locking assembly 320 and the connecting belt 310.

[0053] Reference Figure 5The block 321 is provided with a plurality of slots 322, which are arranged at intervals from one end of the block 321 close to the closing plate 120 to the end of the block 321 away from the closing plate 120, and the plurality of slots 322 are used to lock with the adjacent plurality of teeth 311. The depth of the slots 322 gradually increases from the end of the block 321 away from the closing plate 120 to the end of the block 321 close to the closing plate 120.

[0054] By providing a plurality of slots 322 on the block 321, when the connection belt 310 is locked, the block 321 limits the adjacent plurality of teeth 311 through the slots 322, thereby expanding the locking range and improving the structural strength of the connection between the connection belt 310 and the block 321 when they are locked together, thereby improving the locking stability between the connection belt 310 and the block 321. The depth of the slots 322 gradually increases from the end of the block 321 away from the closing plate 120 to the end of the block 321 close to the closing plate 120, and when the block 321 and the connection belt 310 are locked together, the stability of the connection between the end of the block 321 away from the closing plate 120 and the connection belt 310 is further improved, thereby reducing the possibility of accidental unlocking.

[0055] Reference Figure 2 The closing plate 120 is provided with a plurality of threading holes 122, which are respectively located on both sides of the connecting hole 121. By providing the threading holes 122 on both sides of the connecting hole 121, when the wound surface is located in a special position and the tension of the wound surface is large, the threading holes 122 of the two closing plates 120 are tied for reinforcement, thereby improving the stability of the first retractor 100 and the second retractor 200 in pulling the skin on both sides of the wound surface.

[0056] Reference Figure 2 A plurality of connecting grooves 111 are provided on both sides of the pulling plate 110 in the length direction, and the plurality of connecting grooves 111 are arranged at intervals along the length direction of the pulling plate 110. The connecting grooves 111 on both sides of the length direction of the connecting grooves 111 are symmetrically arranged. The connecting grooves 111 are provided on the side of the pulling plate 110 connected to the closing plate 120, and the ends of the two symmetrically arranged connecting grooves 111 which are away from each other are inclined toward the side close to the pulling plate 110 for connecting with the skin.

[0057] By providing connection grooves 111 on both sides of the pulling plate 110 in the length direction, when the position of the wound surface is special and the tension of the wound surface is large, the medical staff can further fix the pulling plate 110 by means of subcutaneous sutures. The sutures are clamped in the two symmetrically arranged connection grooves 111, which restricts the sliding of the sutures in the length direction of the pulling plate 110, improves the stability of the connection between the sutures and the pulling plate 110, thereby improving the tightness of the connection between the pulling plate 110 and the skin, and further improves the stability of the first retractor 100 and the second retractor 200 in pulling the skin on both sides of the wound surface.

[0058] In another preferred embodiment, referring to Figure 2 and Figure 6 The adjustment mechanism 300 includes a first adjustment component 400 and a second adjustment component 500. The first adjustment component 400 is located at a side of the first retractor 100 away from the second retractor 200 and connected to the first retractor 100. The second adjustment component 500 is located at a side of the second retractor 200 away from the first retractor 100 and connected to the second retractor 200. The first adjustment component 400 and the second adjustment component 500 respectively drive the first retractor 100 and the second retractor 200 to move in a direction close to each other.

[0059] By using the first adjustment component 400 and the second adjustment component 500 to respectively drive the first retractor 100 and the second retractor 200 to move toward each other, the two retractor plates 110 pull the skin on both sides of the wound surface toward the middle of the wound surface, without affecting the cleaning of the wound surface. During the wound cleaning, there is no need to release the traction of the first retractor 100 and the second retractor 200 on the skin, which alleviates the problem that the unlocking of the skin expander during the wound cleaning process easily causes secondary damage to the wound surface.

[0060] The first adjustment assembly 400 and the second adjustment assembly 500 both include an adjustment plate 410, a mounting plate 420, an adjustment belt 430, and a second locking member 440. One side of the adjustment plate 410 is used to adhere to the skin, and the mounting plate 420 is fixedly connected to the other side of the adjustment plate 410. The mounting plate 420 is provided with a through hole for the adjustment belt 430 to pass through. The second locking member 440 of the first adjustment assembly 400 is arranged on the side of the mounting plate 420 away from the first retractor 100; the second locking member 440 of the second adjustment assembly 500 is arranged on the side of the mounting plate 420 away from the second retractor 200. One end of the adjustment belt 430 of the first adjustment assembly 400 passes through the through hole and is fixedly connected to the closing plate 120 of the first retractor 100; one end of the adjustment belt 430 of the second adjustment assembly 500 passes through the through hole and is fixedly connected to the closing plate 120 of the second retractor 200. The second locking member 440 is used to limit the movement of the adjustment belt 430.

[0061] The moving adjustment belt 430 allows the first retractor 100 and the second retractor 200 to move toward each other. When the distance between the first retractor 100 and the second retractor 200 reaches the use requirement, the second locking member 440 is used to limit the movement of the adjustment belt 430, thereby achieving the adjustment of the distance between the first retractor 100 and the second retractor 200.

[0062] The adjusting belt 430 is provided with a plurality of engaging teeth 431, which are arranged at equal intervals along the length direction of the adjusting belt 430. The side of the engaging teeth 431 close to the closing plate 120 is an inclined surface, and the side of the engaging teeth 431 away from the closing plate 120 is a vertical surface, and the inclined surface of the engaging teeth 431 is inclined in the direction away from the closing plate 120. The second locking member 440 includes a engaging block mounted on the mounting plate 420, the engaging block is located on the side of the through hole away from the adjusting plate 410, and a engaging groove for locking with the engaging teeth 431 is provided on the side of the engaging block close to the adjusting plate 410. The engaging block is elastically connected to the mounting plate 420.

[0063] The first pulling plate 110 and the second pulling plate 110 are both fixedly connected to the limiting buckle 112, and the adjusting belt 430 is inserted into the limiting buckle 112. The limiting buckle 112 is used to guide the adjusting belt 430, thereby reducing the possibility of bending of the adjusting belt 430 and improving the working stability of the adjusting belt 430.

[0064] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0065] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wound surface tension-reducing and wound closure skin dilator, characterized in that: The invention comprises a first retractor (100), a second retractor (200) and an adjusting mechanism (300), wherein the first retractor (100) and the second retractor (200) both comprise a retracting plate (110) and a closing plate (120), wherein one side of the retracting plate (110) is used for bonding with the skin, and the closing plate (120) is fixedly connected to the other side of the retracting plate (110), and the adjusting mechanism (300) is connected between the two closing plates (120), and the adjusting mechanism (300) is used for adjusting the distance between the two closing plates (120), and the adjusting mechanism (300) is detachably connected to the closing plate (120).

2. A wound surface tension-reducing and wound closure skin dilator according to claim 1, characterized in that: The adjusting mechanism (300) comprises a connecting belt (310) and a locking assembly (320), wherein the locking assembly (320) is connected to one side of the closing plate (120) of the first retractor (100), and the two closing plates (120) are both provided with connecting holes (121) for the connecting belt (310) to pass through, and one end of the connecting belt (310) in the length direction is fixedly connected to an end plate (330), so that when adjusting the distance between the two closing plates (120), the connecting belt (310) can be adjusted. When the connecting belt (310) is separated from the end plate (330), one end of the connecting belt (310) away from the end plate (330) passes through the connecting hole (121) of the second retractor (200) and the connecting hole (121) of the first retractor (100) in sequence, and then is connected to the locking assembly (320). The other end of the connecting belt (310) is clamped with the closing plate (120) of the second retractor (200) through the end plate (330). The locking assembly (320) is used to cooperate with the connecting belt (310) for locking.

3. A wound surface tension-reducing and wound closure skin dilator according to claim 2, characterized in that: The connecting belt (310) is provided with a plurality of latch teeth (311), and the plurality of latch teeth (311) are arranged at equal intervals along the length direction of the connecting belt (310); the side of the latch teeth (311) close to the end plate (330) is a vertical surface, and the side of the latch teeth (311) away from the end plate (330) is an inclined surface, and the inclined surface of the latch teeth (311) is inclined in the direction close to the end plate (330); the locking assembly (320) includes a latch block (321) arranged on the closing plate (120), the latch block (321) is located on a side of the connecting hole (121) away from the pulling plate (110), and a latch groove (322) for locking with the latch teeth (311) is provided on a side of the pulling plate (110), and the latch block (321) is elastically connected to the closing plate (120).

4. A wound surface tension-reducing and wound closure skin dilator according to claim 3, characterized in that: The clamping block (321) is provided with a plurality of clamping grooves (322), and the plurality of clamping grooves (322) are arranged at intervals from one end of the clamping block (321) close to the closing plate (120) to one end of the clamping block (321) away from the closing plate (120), and the plurality of clamping grooves (322) are used for locking in cooperation with a plurality of adjacent clamping teeth (311).

5. The wound surface tension-reducing and wound closure skin dilator according to claim 3, characterized in that: A support seat (323) is provided on the side of the card block (321) close to the pulling plate (110); the support seat (323) is detachably connected to the closing plate (120); a clearance hole (324) is provided on the support seat (323) for the connection belt (310) to pass through; the support seat (323) is used to limit the movement of the card block (321); when the card block (321) and the connection belt (310) are locked, the side of the card block (321) close to the pulling plate (110) abuts against the support seat (323).

6. The wound surface tension-reducing and wound closure skin dilator according to claim 5, characterized in that: A groove (325) is provided at one end of the support seat (323) away from the pulling plate (110), and the groove (325) passes through the two end surfaces of the support seat (323) close to and away from the closing plate (120). The block (321) is partially located in the groove (325), and the side wall of the block (321) abuts against the inner wall of the groove (325). The groove (325) is used to guide the movement of the block (321). Under the guidance of the groove (325), the block (321) moves in a direction close to or away from the pulling plate (110).

7. The wound surface tension-reducing and wound closure skin dilator according to claim 2, characterized in that: The closing plate (120) is provided with a plurality of threading holes (122), and the plurality of threading holes (122) are respectively located on both sides of the connecting hole (121).

8. The wound surface tension-reducing and wound closure skin dilator according to claim 2, characterized in that: The closing plate (120) is perpendicular to the length direction of the pulling plate (110), and a plurality of connecting grooves (111) are provided on both sides of the length direction of the pulling plate (110). The plurality of connecting grooves (111) are arranged at intervals along the length direction of the pulling plate (110), and the connecting grooves (111) on both sides of the length direction of the connecting groove (111) are symmetrically arranged. The connecting groove (111) is provided on a side of the pulling plate (110) connected to the closing plate (120), and the ends of the two symmetrically arranged connecting grooves (111) that face away from each other are inclined toward a side close to the pulling plate (110) for connecting with the skin.

9. The wound surface tension-reducing and wound closure skin dilator according to claim 2, characterized in that: The adjustment mechanism (300) includes a first adjustment component (400) and a second adjustment component (500). The first adjustment component (400) is located on a side of the first retractor (100) away from the second retractor (200) and is connected to the first retractor (100). The second adjustment component (500) is located on a side of the second retractor (200) away from the first retractor (100) and is connected to the second retractor (200). The first adjustment component (400) and the second adjustment component (500) respectively drive the first retractor (100) and the second retractor (200) to move in a direction close to each other.

10. The wound surface tension-reducing and wound closure skin dilator according to claim 9, characterized in that: The first adjustment component (400) and the second adjustment component (500) both include an adjustment plate (410), a mounting plate (420), an adjustment belt (430) and a second locking member (440). One side of the adjustment plate (410) is used for bonding with the skin. The mounting plate (420) is fixedly connected to the other side of the adjustment plate (410). A through hole is provided on the mounting plate (420) for the adjustment belt (430) to pass through. The second locking member (440) of the first adjustment component (400) is arranged on the mounting plate (420) away from the first retractor (100). ), the second locking member (440) of the second adjusting component (500) is arranged on the side of the mounting plate (420) away from the second retractor (200), one end of the adjusting belt (430) of the first adjusting component (400) passes through the through hole and is fixedly connected to the closing plate (120) of the first retractor (100), one end of the adjusting belt (430) of the second adjusting component (500) passes through the through hole and is fixedly connected to the closing plate (120) of the second retractor (200), and the second locking member (440) is used to limit the movement of the adjusting belt (430).

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