Equal-distance skin stitching instrument

Abstract

The invention relates to a skin equidistant stitching instrument which comprises a skin guide assembly, a nail bin, a transmission assembly, a pressing assembly and a shell, the skin guide assembly comprises a bottom plate and a plurality of skin guide wheels, and the skin guide wheels are rotatably arranged on the two sides of the bottom plate and suitable for clamping the skin; the shell is installed on the bottom plate and accommodates the nail bin, the transmission assembly and the pressing assembly, a plurality of suturing nails are arranged in the nail bin, the nail bin is fixed to the upper portion of the bottom plate, the transmission assembly is installed on the bottom plate and is in linkage with the skin guide wheel, and the pressing assembly is fixed to the skin guide wheel. The transmission assembly is arranged on the front portion of the bottom plate so as to convert rotation motion of the skin guide wheel into reciprocating motion, and the pressing assembly is installed on the front portion of the bottom plate in a linkage mode so as to be matched with the nail bin and suitable for sewing the suturing nails in the nail bin to the skin at equal intervals under pushing of the transmission assembly.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a skin isometric suturing device. Background Art

[0002] In surgical operations, skin suturing is a basic and critical technology that directly affects the healing speed and aesthetics of wounds. Although the traditional silk thread interrupted suture method is simple and easy to use, it has some shortcomings in practical applications. First, as a foreign body, silk thread may increase the risk of incision infection if it remains in the body for a long time. Secondly, patients may react to silk thread knots, which manifests as local redness, swelling, pain, and even rejection, which not only brings additional pain to patients, but also increases the follow-up work of medical staff.

[0003] To address these issues, skin staples have been introduced into clinical practice as an alternative. Skin staples are usually made of special materials that can reduce tissue reaction and are designed for single use to reduce the risk of infection. However, the use of skin staples also faces challenges. Since it requires precise control of the spacing and depth of the staples, it is undoubtedly a big problem for beginners. Inappropriate spacing may lead to poor wound healing, while nails that are too deep or too shallow may cause pain or wound tearing. Summary of the invention

[0004] An advantage of the present invention is that it provides a skin isometric suture device, wherein the skin isometric suture device can ensure that each suture is performed at the same interval, so that the suture staples on the skin are arranged neatly and beautifully, and help the wound to heal evenly.

[0005] Another advantage of the present invention is that it provides a skin isometric suture device, wherein the skin isometric suture device makes the surgical procedure faster, reduces the surgical time, and reduces the risks for patients and doctors during the surgical procedure.

[0006] Another advantage of the present invention is that it provides a skin isometric suture device, wherein compared with manual operation, the use of the skin isometric suture device can reduce unnecessary pulling and puncturing of the skin, thereby reducing tissue damage and postoperative pain and accelerating wound recovery.

[0007] Another advantage of the present invention is that it provides a skin isometric suture device, wherein the regular suture intervals of the skin isometric suture device help to reduce the formation of postoperative scars and make the appearance after healing more beautiful.

[0008] Another advantage of the present invention is that it provides a skin isometric suture device, wherein the skin isometric suture device is composed of mechanical parts, is easy to sterilize, and can be reused, thereby further reducing the cost of use.

[0009] According to another aspect of the present invention, the present invention further provides a skin isometric suture device, the skin isometric suture device comprising:

[0010] A skin guiding assembly, comprising a bottom plate and a plurality of skin guiding wheels, wherein the skin guiding wheels are rotatably arranged on both sides of the bottom plate and are suitable for clamping the skin;

[0011] A nail magazine, in which a plurality of suture nails are arranged, and the nail magazine is fixed above the bottom plate;

[0012] a transmission assembly, the transmission assembly being mounted on the bottom plate and being linked to the skin guide wheel to convert the rotational motion of the skin guide wheel into a reciprocating motion;

[0013] a pressing assembly, which is installed on the front part of the bottom plate in linkage with the staple cartridge and is suitable for suturing the staples in the staple cartridge to the skin under the push of the transmission assembly; and

[0014] A shell is installed on the bottom plate and accommodates the nail magazine, the transmission assembly and the pressing assembly.

[0015] According to one embodiment of the present invention, the base plate has two skin guide grooves, and the skin guide grooves are arranged on both sides of the base plate. The front width of the base plate is smaller than the rear width of the base plate, so that the skin guide grooves form a "Y"-shaped structure.

[0016] According to one embodiment of the present invention, the skin guide wheel includes a front guide wheel, a rear guide wheel and a transmission wheel, the front guide wheel is composed of two groups of first guide wheels arranged in parallel at the front of the base plate to be suitable for engaging the skin, the rear guide wheel is composed of two groups of second guide wheels arranged in parallel at the rear of the base plate to be suitable for engaging the skin, and the transmission wheel links the second guide wheel to the transmission assembly.

[0017] According to one embodiment of the present invention, the transmission assembly includes a speed gear box, an output shaft, an eccentric wheel, a connecting rod, a push rod and a fixed frame, the output shaft is installed on the speed gear box, the eccentric wheel is fixed to the output shaft and is suitable for being driven by the output shaft to rotate, one end of the connecting rod is pivoted to the eccentric end of the eccentric wheel, and the other end is pivoted to the push rod, the fixed frame is fixed above the nail magazine, the push rod is slidably installed on the fixed frame, the speed gear box is installed on the base plate and linked to the transmission wheel, so as to transmit the rotational motion of the second guide wheel to the speed gear box through the transmission wheel, driving the push rod to perform reciprocating motion.

[0018] According to one embodiment of the present invention, the front end of the push rod is a bevel end.

[0019] According to one embodiment of the present invention, the pressing assembly includes a suture nail pressing plate, a rebound unit and a retaining frame, wherein the retaining frame is arranged in front of the nail magazine and close to the front edge of the base plate, the suture nail pressing plate is movably installed on the retaining frame, the rebound unit is arranged in the retaining frame, the inclined surface end is suitable for pushing the suture nail pressing plate downward to press the suture nail in the nail magazine out, and the rebound is supported by the rebound unit after the inclined surface end retreats.

[0020] According to one embodiment of the present invention, the staple pressing piece further has a beveled mating end, and the beveled end is suitable for squeezing the beveled mating end through its own bevel to move the staple pressing piece downward.

[0021] According to one embodiment of the present invention, the first guide wheel includes a first shaft body and a first conical wheel and a first synchronous wheel installed on both sides of the first shaft body, the first synchronous wheel is coaxially fixed to the first shaft body, so that when the two first guide wheels are combined, they mesh with each other to maintain synchronous rotation, and the cross-sectional area of ​​the first conical wheel gradually decreases from the end surface of the first shaft body toward the first shaft body; the second guide wheel includes a second shaft body and a second conical wheel and a second synchronous wheel installed on both sides of the second shaft body, the second synchronous wheel is coaxially fixed to the second shaft body, so that when the two second guide wheels are combined, they mesh with each other to maintain synchronous rotation, the cross-sectional area of ​​the second conical wheel gradually decreases from the end surface of the second shaft body toward the second shaft body, and the second synchronous wheel meshes with the transmission wheel.

[0022] According to an embodiment of the present invention, the bottom plate further has a nail outlet groove, and the nail outlet groove is arranged below the retaining frame so as to be suitable for the suture nail pressing sheet to drive the suture nail to move in the nail outlet groove.

[0023] According to another aspect of the present invention, the present invention further provides a skin isometric suture device, the skin isometric suture device comprising:

[0024] A skin guide assembly, the skin guide assembly comprises a bottom plate and a plurality of skin guide wheels, the bottom plate has two skin guide grooves, the skin guide grooves are arranged on both sides of the bottom plate, the front width of the bottom plate is smaller than the rear width of the bottom plate, so that the skin guide grooves form a "Y"-shaped structure, the skin guide wheels comprise a front guide wheel, a rear guide wheel and a transmission wheel, the front guide wheel is composed of two groups of first guide wheels arranged in parallel at the front of the bottom plate to be suitable for engaging the skin, and the rear guide wheel is composed of two groups of second guide wheels arranged in parallel at the rear of the bottom plate to be suitable for engaging the skin;

[0025] A nail magazine, in which a plurality of suture nails are arranged, and the nail magazine is fixed above the bottom plate;

[0026] A transmission assembly, the transmission assembly includes a speed change gear box, an output shaft, an eccentric wheel, a connecting rod, a push rod and a fixed frame, the output shaft is installed on the speed change gear box, the eccentric wheel is fixed to the output shaft and is suitable for being driven to rotate by the output shaft, one end of the connecting rod is pivotally connected to an eccentric end of the eccentric wheel, and the other end is pivotally connected to the push rod, the fixed frame is fixed above the nail magazine, the push rod is slidably installed on the fixed frame, the speed change gear box is installed on the bottom plate and linked to the transmission wheel, so that the rotational motion of the second guide wheel is transmitted to the speed change gear box through the transmission wheel, and the push rod is driven to reciprocate;

[0027] a pressing assembly, the pressing assembly comprising a staple pressing sheet, a rebound unit and a retaining frame, the retaining frame being arranged in front of the staple cartridge and close to the front edge of the bottom plate, the staple pressing sheet being movably mounted on the retaining frame, the rebound unit being arranged in the retaining frame, the inclined surface end being adapted to push the staple pressing sheet downward to press the staples in the staple cartridge out, and being supported and rebounded by the rebound unit after the inclined surface end retreats; and

[0028] A shell is installed on the bottom plate and accommodates the nail magazine, the transmission assembly and the pressing assembly.

[0029] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a skin isometric suture device according to a preferred embodiment of the present invention.

[0031] Figure 2 It is a schematic diagram of the exploded structure of a skin isometric suture device according to a preferred embodiment of the present invention.

[0032] Figure 3 It is a schematic diagram of the exploded structure of a skin guide assembly of a skin isometric suture device according to a preferred embodiment of the present invention.

[0033] Figure 4 This is one of the schematic diagrams of the internal structure of a skin isometric suture device according to a preferred embodiment of the present invention.

[0034] Figure 5 FIG. 2 is a second schematic diagram of the internal structure of a skin isometric suture device according to a preferred embodiment of the present invention.

[0035] Figure 6It is a partial cross-sectional schematic diagram of a pressing assembly of a skin isometric suture device according to a preferred embodiment of the present invention.

[0036] Figure 7 It is one of the side views of a skin isometric suture device according to a preferred embodiment of the present invention, illustrating one of the working states of the transmission component and the pressing component.

[0037] Figure 8 It is a second side view of a skin isometric suture device according to a preferred embodiment of the present invention, illustrating a second working state of the transmission component and the pressing component.

[0038] Fig. 9 1. It is a front view of a skin isometric suture device according to a preferred embodiment of the present invention when in operation.

[0039] Fig.10 It is a working schematic diagram of a skin isometric suture device according to a preferred embodiment of the present invention.

[0040] The reference numerals in the specific implementation manner are as follows:

[0041] 1. Skin isometric suture device; 2. Skin;

[0042] 10. housing; 20. skin guide assembly; 30. nail magazine; 40. transmission assembly; 50. pressing assembly;

[0043] 21. bottom plate; 211. skin guide groove; 212. nail outlet groove;

[0044] 22. Skin guide wheel;

[0045] 221, front guide wheel; 2211, first guide wheel; 22111, first shaft; 22112, first conical wheel; 22113, first synchronous wheel;

[0046] 222, rear guide wheel; 2221, second guide wheel; 22211, second shaft body; 22212, second conical wheel; 22213, second synchronous wheel;

[0047] 223, transmission wheel;

[0048] 31. Suture staples;

[0049] 41. speed change gear box; 42. output shaft; 43. eccentric wheel; 44. connecting rod; 45. fixing bracket; 46. push rod; 47. bevel end;

[0050] 51. Suture staple pressing piece; 511. Bevel mating end; 52. Rebound unit; 53. Cage; DETAILED DESCRIPTION

[0051] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0052] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0053] It is to be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Figure 1 To Attachment Fig.10 As shown, a skin isometric suture device of a preferred embodiment of the present invention is schematically shown. Figure 1 and attached Figure 2 As shown, the skin isometric suture device 1 includes a skin guide assembly 20, a staple cartridge 30, a transmission assembly 40, a pressing assembly 50 and a housing 10, wherein the staple cartridge 30, the transmission assembly 40 and the pressing assembly 50 are mounted on the skin guide assembly 20 and accommodated by the housing 10. The operator can use the handle of the housing 10 to move the skin guide assembly 20 to the skin to be sutured, and link the pressing assembly 50 with the transmission assembly 40 to suture the skin at regular intervals, on the one hand, ensuring that each suture is performed at the same interval, so that the wound can be sutured more beautifully and help wound healing, and on the other hand, making the surgical process faster, reducing the suture operation time, reducing the risks of patients and doctors during the operation, and further reducing unnecessary pulling and puncture of the skin, thereby reducing tissue damage and postoperative pain, and accelerating wound recovery.

[0054] The housing 10 provides protection for the internal components, ensuring that the entire device can be reused in a strict medical environment, and the housing 10 has sufficient strength and durability to withstand the wear and tear of repeated use. The medical-grade material used to make the housing 10 has good chemical stability and corrosion resistance, that is, during frequent disinfection processes, the housing 10 will not degrade or deform due to contact with various disinfection chemicals.

[0055] In order to ensure that the skin isometric suture device 1 can be used safely in a sterile surgical environment, the housing 10 is designed to withstand a variety of sterilization methods, including chemical sterilization, high-temperature steam sterilization, and cold sterilization, etc. These sterilization methods can effectively eliminate pathogens that may exist on the housing 10, prevent cross infection, and ensure that each use is safe.

[0056] The ability to repeatedly sterilize the skin isometric stapler 1 not only extends its service life, but also reduces the cost of use for hospitals and clinics. At a time when medical budgets are increasingly tight, reusable and easy-to-sterilize instruments are particularly important, reducing reliance on disposable instruments while maintaining high standards and safety of surgical procedures.

[0057] Reference Figure 3 To Attachment Figure 6 , the skin guide assembly 20, the nail magazine 30, the transmission assembly 40 and the pressing assembly 50 are illustrated in detail. It can be understood that the skin guide assembly 20, the nail magazine 30, the transmission assembly 40 and the pressing assembly 50 can be sterilized for reuse, including chemical sterilization, high temperature steam sterilization and cold sterilization, so as to further extend the service life and reduce the use cost for hospitals and clinics.

[0058] A plurality of suture staples 31 are arranged in the staple cartridge 30, and the staple cartridge 30 is fixed above the bottom plate 21. It is understandable that an elastic mechanism may be arranged in the staple cartridge 30 to tightly squeeze the suture staples 31, so that after the suture staples 31 arranged in the first position are pushed out, the suture staples 31 in the subsequent position may be moved to the first position under the pushing force of the elastic structure, so as to facilitate continuous suturing operation.

[0059] In detail, the skin guide assembly 20 includes a base plate 21 and a plurality of skin guide wheels 22. The skin guide wheels 22 are rotatably arranged on both sides of the base plate 21 and are divided into two upper and lower rows, so that the skin can be clamped between the upper and lower skin guide wheels 22.

[0060] Reference Figure 3The exploded structural diagram of the skin guide assembly 20 is shown, wherein the base plate 21 has two skin guide grooves 211, and the skin guide grooves 211 are arranged on both sides of the base plate 21. The width of the front portion of the base plate 21 is smaller than the width of the rear portion of the base plate 21, so that the skin guide grooves 211 form a "Y"-shaped structure within the plane of the base plate 21, that is, there is a tendency to tighten from the rear portion to the front portion of the base plate 21. When both sides of the skin to be sutured are located in the skin guide grooves 211, as the base plate 21 moves from the front portion to the rear portion, the two sides of the skin tend to close together, and under the guidance of the skin guide wheel 22, the tendency of the skin to tighten and close is more obvious.

[0061] The skin guide wheels 22 are all arranged in the skin guide groove 211. Specifically, the skin guide wheels 22 include a front guide wheel 221 and a rear guide wheel 222. The front guide wheel 221 is composed of two groups of first guide wheels 2211 arranged in parallel at the front of the bottom plate 21, and the rear guide wheel 222 is composed of two groups of second guide wheels 2221 arranged in parallel at the rear of the bottom plate 21. It can be understood that the front guide wheel 221 is located at the front of the bottom plate 21, and the rear guide wheel 222 is located at the rear of the bottom plate 21. The width of the front of the bottom plate 21 is smaller than the width of the rear of the bottom plate 21, and the length of the front guide wheel 221 is smaller than the length of the rear guide wheel 222. The difference in length between the front guide wheel 221 and the rear guide wheel 222 is more suitable for closing and pulling the skin, which is conducive to the normal skin suturing, thereby reducing unnecessary pulling and puncturing of the skin.

[0062] In particular, the first guide wheel 2211 includes a first shaft 22111 and a first conical wheel 22112 and a first synchronous wheel 22113 installed on both sides of the first shaft 22111. The first synchronous wheel 22113 is coaxially fixed to the first shaft 22111 so that when the two first guide wheels 2211 are combined, they mesh with each other to maintain synchronous rotation. The cross-sectional area of ​​the first conical wheel 22112 is from the end surface of the first shaft 22111 to the main body of the first shaft 22111. Gradually; the second guide wheel 2221 includes a second shaft body 22211 and a second conical wheel 22212 and a second synchronous wheel 22213 installed on both sides of the second shaft body 22211, the second synchronous wheel 22213 is coaxially fixed to the second shaft body 22211 so that when the two second guide wheels 2221 are combined, they engage with each other to maintain synchronous rotation, and the cross-sectional area of ​​the second conical wheel 22212 is gradually reduced from the end face of the second shaft body 22211 to the main body of the second shaft body 22211.

[0063] Multiple first shafts 22111 and second shafts 22211 are rotatably installed on the base plate 21, and multiple first conical wheels 22112 and second conical wheels 22212 are arranged in the skin guide groove 211. The skin to be sutured passes through the skin guide groove 211 and is clamped by the first conical wheel 22112 and the second conical wheel 22212. Due to the conical characteristics of the first conical wheel 22112 and the second conical wheel 22212, the upper and lower activity space of the skin gradually decreases from the center of the base plate 21 to the outside, and the pressure on the skin is also greater. As the base plate 21 moves from the front to the back, the tendency of the two sides of the skin to close becomes stronger under the pressure of the first conical wheel 22112 and the second conical wheel 22212. The skin to be sutured will not fall out during the movement of the base plate 21, which is more conducive to the operator to perform the suturing operation.

[0064] In particular, the skin guide wheel 22 also includes a transmission wheel 223, which is engaged with the second synchronous wheel 22213 and linked to the transmission assembly 40, so that the rotation of the skin guide wheel 22 generated by skin friction is transmitted to the transmission assembly 40 through the transmission wheel 223.

[0065] The transmission assembly 40 includes a speed change gear box 41, an output shaft 42, an eccentric wheel 43, a connecting rod 44, a push rod 46 and a fixed frame 45. The output shaft 42 is installed on the speed change gear box 41, the eccentric wheel 43 is fixed to the output shaft 42 and is suitable for being driven to rotate by the output shaft 42, one end of the connecting rod 44 is pivoted to an eccentric end of the eccentric wheel 43, and the other end is pivoted to the push rod 46, the fixed frame 45 is fixed above the nail magazine 30, and the push rod 46 is slidably installed on the fixed frame 45, the speed change gear box 41 is installed on the base plate 21 and linked to the transmission wheel 223, so as to transmit the rotational movement of the second guide wheel 2221 to the speed change gear box 41 through the transmission wheel 223, and drive the push rod 46 to reciprocate via the eccentric wheel 43 and the connecting rod 44.

[0066] The pressing assembly 50 includes a suture staple pressing plate 51, a rebound unit 52 and a retaining frame 53. The retaining frame 53 is arranged in front of the staple magazine 30 and close to the front edge of the base plate 21. The suture staple pressing plate 51 is movably installed on the retaining frame 53. The rebound unit 52 is arranged in the retaining frame 53. The push rod 46 is suitable for pushing the suture staple pressing plate 51 downward to press the suture staple 31 in the staple magazine 30 out, and the suture staple 31 is supported and rebounded by the rebound unit 52 after the push rod 46 retreats, thereby completing the suture cycle.

[0067] The bottom plate 21 further has a nail outlet groove 212 , and the nail outlet groove 212 is disposed below the retaining frame 53 , so that the nail pressing plate 51 can drive the nail 31 to move in the nail outlet groove 212 .

[0068] In more detail, the front end of the push rod 46 is a bevel end 47, the bevel of the bevel end 47 forms an acute angle with the plane of the retaining frame 53, and the suture nail pressing plate 51 also has a bevel mating end 511, and the bevel mating end 511 has a bevel parallel to the bevel end 47, and the bevel end 47 is suitable for squeezing the bevel of the bevel mating end 511 through its own bevel, so that the suture nail pressing plate 51 moves downward, thereby pressing the suture nail 31 in the nail magazine 30 out.

[0069] The speed change gearbox 41 is mounted on the bottom plate 21, and the transmission wheel 223 is meshed with the speed change gearbox 41. The speed change gearbox 41 can change the transmission ratio, thereby changing the rotation rate of the transmission wheel 223 and transmitting it to the output shaft 42, so that the rotation speed of the transmission wheel 223 can be changed by the speed change gearbox 41 and output to the output shaft 42, that is, the rotation speed of the second guide wheel 2221 passes through the transmission wheel 223 and the speed change gearbox 41 to reach a suitable transmission ratio and then output to the output shaft 42. It can be understood that the transmission ratio of the speed change gearbox 41 is not fixed, but can be changed by adjustment or by replacing different speed change gearboxes to find a suitable speed ratio value.

[0070] The center of the eccentric wheel 43 is fixed to the output shaft 42, so that when the output shaft 42 rotates, the eccentric wheel 43 is driven to rotate, and the eccentric end of the eccentric wheel 43 rotates accordingly, and the connecting rod 44 pivoted to the eccentric end can rotate accordingly. The other end of the connecting rod 44 is rotatably connected to the end of the push rod 46, and the push rod 46 is slidably mounted on the fixing frame 45, so that when the eccentric wheel 43 rotates, the rotational motion of the output shaft 42 is converted into the reciprocating motion of the push rod 44. It can be understood that the plane where the push rod 46 is located is kept parallel to the bottom plate 21, and the push rod 46 and the fixing frame are kept lubricated to reduce the resistance of the push rod 46 when it moves.

[0071] Reference Figure 6, is a partial cross-sectional schematic diagram of the pressing assembly 50. The retaining frame 53 is provided with sliding grooves on both sides, the rebound unit 52 is provided in the sliding grooves, the two sides of the suture nail pressing piece 51 are slidably installed in the sliding grooves and biased to the rebound unit 52, and the inclined surface of the inclined surface matching end 511 is directed toward the inclined surface end 47, so that when the eccentric wheel 43 rotates, the rotational motion of the output shaft 42 is converted into the reciprocating motion of the push rod 44, and the inclined surface end 47 of the push rod 46 is driven to squeeze the inclined surface of the inclined surface matching end 511, so that the suture nail pressing piece 51 has a tendency to move outward, and under the decomposition of the force of the inclined surface matching end 511, the suture nail pressing piece 51 is moved downward, so as to press the suture nail 31 in the nail magazine 30 out.

[0072] The inclined surfaces of the inclined surface end 47 and the inclined surface matching end 511 are made of hard materials and can maintain relative sliding, thereby further reducing the torque required for the push rod 46 to push the suture nail pressing plate 51, thereby reducing the torque input requirement for the input end, that is, the second guide wheel 2221 end.

[0073] Reference Figure 7 and attached Figure 8 , is a side view of the skin isometric suture device 1, illustrating the working positions of the transmission assembly 40 and the pressing assembly 50. When the eccentric wheel 43 rotates continuously, the push rod 46 reciprocates and pushes the staple pressing sheet 51 downward to press out the staple 31, and then rebounds to the initial position to complete a staple removal process. It can be seen that the transmission assembly 40 converts the continuous motion into the intermittent motion of the pressing assembly 50, that is, when the skin guide assembly 20 moves continuously, the pressing assembly 50 can maintain a fixed rhythm to push out the staple 31, ensuring that each suture is performed at the same interval, so that the staples 31 on the skin are arranged neatly and beautifully, and help the wound heal evenly.

[0074] Reference Fig. 9 and attached Fig.10, which are respectively the front view and the stereoscopic view of the skin isometric suture device 1 when it is working. When the skin isometric suture device 1 is sutured, the skin 2 is engaged with the skin 2 in the skin guide groove 211 by the front guide wheel 221 and the rear guide wheel 222, and the bottom plate 21 moves from front to back. The upper and lower activity space of the skin 2 gradually decreases from the center of the bottom plate 21 to the outside, and the pressure of the front guide wheel 221 and the rear guide wheel 222 on the skin 2 gradually increases. As the bottom plate 21 moves from the front to the back, the two sides of the skin 2 tend to close together and converge at the front of the bottom plate 21. The skin 2 to be sutured will not fall out during the movement of the bottom plate 21, which is more conducive to the operator to perform the suture operation.

[0075] Through the friction between the front guide wheel 221 and the rear guide wheel 222 and the skin, the front guide wheel 221 and the rear guide wheel 222 are driven to rotate when the base plate 21 moves, and the rotation is transmitted to the speed change gear box 41. The speed change gear box 41 changes the transmission ratio and transmits it to the eccentric wheel 43, and drives the push rod 46 to move through the connecting rod 44, thereby driving the bevel end 47 of the push rod 46 to squeeze the bevel of the bevel mating end 511, so that the suture nail pressing piece 51 has a tendency to move outward, and under the decomposition of the force by the bevel mating end 511, the suture nail pressing piece 51 moves downward, so that the suture nail 31 in the nail magazine 30 is pressed out onto the skin 2, completing a nail removal process, and the base plate 21 continues to move , driving the eccentric wheel 43 to continue rotating so as to retract the push rod 46, and the suture staple pressing sheet 51 rebounds. At this time, the base plate 21 continues to move. During the rotation of the eccentric wheel 43, the base plate 21 synchronously moves a distance. It can be understood that the rotation cycle of the eccentric wheel 43 is in a corresponding relationship with the movement distance of the base plate 21, so that the pressing assembly 50 can sew the suture staples 31 to the sutured part of the skin 2 at uniform intervals as the base plate 21 moves. The neatly arranged and beautiful sutures help the wound to heal evenly, and make the operation process faster, reduce the operation time, and reduce the risks of patients and doctors during the operation. In addition, it can also reduce unnecessary pulling and puncture of the skin, thereby reducing tissue damage and postoperative pain, and accelerating wound recovery.

[0076] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A skin isometric suture device, suitable for suturing a skin, characterized in that: include: A skin guiding assembly, comprising a bottom plate and a plurality of skin guiding wheels, wherein the skin guiding wheels are rotatably arranged on both sides of the bottom plate and are suitable for clamping the skin; A nail magazine, in which a plurality of suture nails are arranged, and the nail magazine is fixed above the bottom plate; a transmission assembly, the transmission assembly being mounted on the bottom plate and being linked to the skin guide wheel to convert the rotational motion of the skin guide wheel into a reciprocating motion; a pressing assembly, which is installed on the front part of the bottom plate in linkage with the staple cartridge and is suitable for suturing the staples in the staple cartridge to the skin under the push of the transmission assembly; and A shell is installed on the bottom plate and accommodates the nail magazine, the transmission assembly and the pressing assembly.

2. The skin isometric stapler according to claim 1, wherein the base plate has two skin guide grooves, the skin guide grooves are arranged on both sides of the base plate, and the front width of the base plate is smaller than the rear width of the base plate, so that the skin guide grooves form a "Y"-shaped structure.

3. The skin isometric suture device according to claim 2, wherein the skin guide wheel comprises a front guide wheel, a rear guide wheel and a transmission wheel, the front guide wheel is composed of two groups of first guide wheels arranged in parallel at the front of the base plate to be suitable for engaging the skin, the rear guide wheel is composed of two groups of second guide wheels arranged in parallel at the rear of the base plate to be suitable for engaging the skin, and the transmission wheel links the second guide wheel to the transmission assembly.

4. The skin isometric suturing device according to claim 3, wherein the transmission assembly comprises a speed gear box, an output shaft, an eccentric wheel, a connecting rod, a push rod and a fixed frame, the output shaft is mounted on the speed gear box, the eccentric wheel is fixed to the output shaft and is suitable for being driven to rotate by the output shaft, one end of the connecting rod is pivoted to an eccentric end of the eccentric wheel, and the other end is pivoted to the push rod, the fixed frame is fixed above the nail magazine, the push rod is slidably mounted on the fixed frame, the speed gear box is mounted on the base plate and linked to the transmission wheel to transmit the rotational motion of the second guide wheel to the speed gear box through the transmission wheel, thereby driving the push rod to perform reciprocating motion.

5. The skin isometric suture device according to claim 4, wherein the front end of the push rod is a bevel end.

6. The skin isometric suturing device according to claim 5, wherein the pressing assembly comprises a suture staple pressing plate, a rebound unit and a retaining frame, wherein the retaining frame is arranged in front of the staple magazine close to the front edge of the base plate, the suture staple pressing plate is movably mounted on the retaining frame, the rebound unit is arranged in the retaining frame, the inclined end is suitable for pushing the suture staple pressing plate downward to press the suture staple in the staple magazine out, and the suture staple is supported and rebounded by the rebound unit after the inclined end retracts.

7. The skin isometric suturer according to claim 6, wherein the suture staple pressing piece further has a beveled mating end, and the beveled end is suitable for squeezing the beveled mating end through its own bevel to move the suture staple pressing piece downward.

8. The skin isometric suture device according to claim 7, wherein the first guide wheel comprises a first shaft body and a first conical wheel and a first synchronous wheel installed on both sides of the first shaft body, the first synchronous wheel is coaxially fixed to the first shaft body so as to engage with each other to maintain synchronous rotation when the two first guide wheels are combined, and the cross-sectional area of ​​the first conical wheel gradually decreases from the end surface of the first shaft body toward the first shaft body; the second guide wheel comprises a second shaft body and a second conical wheel and a second synchronous wheel installed on both sides of the second shaft body, the second synchronous wheel is coaxially fixed to the second shaft body so as to engage with each other to maintain synchronous rotation when the two second guide wheels are combined, the cross-sectional area of ​​the second conical wheel gradually decreases from the end surface of the second shaft body toward the second shaft body, and the second synchronous wheel engages with the transmission wheel.

9. The skin equidistant stapler according to claim 8, wherein the base plate further has a staple outlet groove, and the staple outlet groove is arranged below the retaining frame so as to be suitable for the staple pressing plate to drive the staple to move in the staple outlet groove.

10. A skin isometric suture device, suitable for suturing a skin, characterized in that: include: A skin guide assembly, the skin guide assembly includes a base plate and a plurality of skin guide wheels, the base plate has two skin guide grooves, the skin guide grooves are arranged on both sides of the base plate, the front width of the base plate is smaller than the rear width of the base plate, so that the skin guide grooves form a "Y"-shaped structure, the skin guide wheels include a front guide wheel, a rear guide wheel and a transmission wheel, the front guide wheel is composed of two groups of first guide wheels arranged in parallel at the front of the base plate to be suitable for engaging the skin, and the rear guide wheel is composed of two groups of second guide wheels arranged in parallel at the rear of the base plate to be suitable for engaging the skin; A nail magazine, in which a plurality of suture nails are arranged, and the nail magazine is fixed above the bottom plate; A transmission assembly, the transmission assembly includes a speed change gear box, an output shaft, an eccentric wheel, a connecting rod, a push rod and a fixed frame, the output shaft is installed on the speed change gear box, the eccentric wheel is fixed to the output shaft and is suitable for being driven to rotate by the output shaft, one end of the connecting rod is pivotally connected to an eccentric end of the eccentric wheel, and the other end is pivotally connected to the push rod, the fixed frame is fixed above the nail magazine, the push rod is slidably installed on the fixed frame, the speed change gear box is installed on the bottom plate and linked to the transmission wheel, so that the rotational motion of the second guide wheel is transmitted to the speed change gear box through the transmission wheel, and the push rod is driven to reciprocate; a pressing assembly, the pressing assembly comprising a staple pressing sheet, a rebound unit and a retaining frame, the retaining frame being arranged in front of the staple cartridge and close to the front edge of the bottom plate, the staple pressing sheet being movably mounted on the retaining frame, the rebound unit being arranged in the retaining frame, the push rod being adapted to push the staple pressing sheet downward to push out the staples in the staple cartridge, and being supported and rebounded by the rebound unit after the push rod is retracted; and A shell is installed on the bottom plate and accommodates the nail magazine, the transmission assembly and the pressing assembly.

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