Annular traction device for perineal plastic surgery

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an annular traction device for perineal plastic surgery, which comprises a traction ring, and an inner gear ring is fixedly arranged on the surface of the traction ring; at least two groups of power driving mechanisms are arranged on the traction ring, and the power driving mechanisms are in meshing transmission with the inner gear ring; each group of power driving mechanism is provided with an expanding and supporting mechanism, and the expanding and supporting mechanisms are used for expanding and supporting the perineal plastic surgery site; a bandage supporting mechanism is arranged on the traction ring and used for fastening the traction ring to the root of the leg of the patient. The expansion mechanism can conveniently perform traction expansion adjustment on a to-be-shaped position in an adjustment state at any time, so that the to-be-shaped position cannot interfere with normal operation treatment of medical staff on the shaped part.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to an annular traction device for perineum plastic surgery. Background Art

[0002] After childbirth, the vagina of women becomes loose. The vagina is congenitally narrow and short or traumatized and needs surgical repair, that is, vaginal plastic surgery. In particular, vaginal plastic surgery can improve the elasticity of the vagina, make the tightness appropriate, and after the lacerated perineum and the loose vagina are plasticized, they are in the state before pregnancy, and the appearance is more perfect than before vaginal plastic surgery.

[0003] When performing plastic surgery on the perineum, most existing methods require the use of instruments with traction and expansion to assist in accurately operating on the plastic surgery site. However, the existing traction and expansion devices either use the structure of a duckbill pliers for simple auxiliary expansion, and cannot adjust the position of the support plate of the duckbill pliers according to the needs of the perineum plastic surgery site, which will affect the scope of use and the safety of the existing traction and expansion devices. Summary of the Invention

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] The present invention is an annular traction device for perineum plastic surgery, including a traction ring, and an internal gear ring is fixedly arranged on the surface of the traction ring; at least two groups of power driving mechanisms are arranged on the traction ring, and the power driving mechanisms are in meshing transmission with the internal gear ring; an expansion mechanism is installed on each group of power driving mechanisms, and the expansion mechanism is used for expanding the perineum plastic surgery site; a strap support mechanism is arranged on the traction ring, and the strap support mechanism is used for fastening the traction ring to the root of the patient's leg.

[0006] Further, the power driving mechanism includes a gear part, a rotating shaft, an upper support plate, a lower support plate, a roller, a side vertical plate and a locking bolt. The gear part is in meshing with the internal gear ring, and the gear part is rotationally connected to the upper support plate and the lower support plate through the cooperation of the rotating shaft and a bearing. The upper support plate and the lower support plate are respectively located on the upper and lower surfaces of the gear part, and a servo motor connected to the gear part is fixedly arranged on the upper surface of the upper support plate. An annular cavity is opened on the upper surface of the traction ring, and the bottom end of the rotating shaft extends out of the lower support plate and is rotationally inserted into the annular cavity through the roller. The outer ends of the upper support plate and the lower support plate are vertically connected to the same side vertical plate, and the side vertical plate extends downward to the lower surface of the traction ring. An annular cavity is also opened on the inner circumferential surface of the traction ring, and the downward extending part of the side vertical plate is threadedly connected with a locking bolt, and the tail of the screw of the locking bolt is rotationally inserted into the annular cavity opened on the inner circumferential surface through the roller.

[0007] Furthermore, the expansion mechanism includes a horizontal branch pipe, a U-shaped seat, a hinged rod, a hinged sleeve, an expansion rod and an expansion plate. The horizontal branch pipe is horizontally installed on the outer side surface of the side plate, and the outer end of the horizontal branch pipe is fixedly provided with a U-shaped seat. An hinged sleeve is rotatably installed in the U-shaped seat through the hinged rod, the expansion rod is vertically connected to the hinged sleeve, and the bottom end of the expansion rod is installed with an expansion plate, and the top end of the expansion rod is connected to the servo motor through a pulling adjustment assembly.

[0008] Furthermore, the pulling adjustment assembly includes an inclined rod, a capsule-shaped column, a spring component, an air guide tube, a support seat and a spherical capsule body. The top end portion of the expansion rod is hingedly connected to a diagonal rod on the side surface, and the other inclined rod is obliquely installed on the servo motor. The two inclined rods are connected by a capsule-shaped column. The capsule-shaped column is outer-circuited with a spring component, and the two ends of the spring component are respectively connected to the two inclined rods. The tail end portion of the capsule-shaped column is connected to an air guide tube, and the other end of the air guide tube is connected to the spherical capsule body through a hard tube. The spherical capsule body is connected to the servo motor through the cooperation of the support seat and the hard tube.

[0009] Furthermore, a sliding limit assembly is provided in the horizontal branch pipe, and the sliding limit assembly includes a triangular block, a guide rod, a movable guide rod, a toggle block, a nut member and a limit plug rod. The pipe mouth of the horizontal branch pipe extends into the cavity between the upper support plate and the lower support plate. The pipe mouth of the horizontal branch pipe facing the gear part is provided with a triangular block. The triangular inclined surface of the triangular block and the tooth groove of the gear part are plugged into each other, and the inner side surface of the triangular block is slidably inserted into the horizontal branch pipe through the guide rod. The inner end of the guide rod is connected to the movable guide rod. The outer pipe wall of the horizontal branch pipe is threaded and has a horizontal length thereof. A moving guide groove is provided in the direction, a toggle block is connected to the outer rod wall of the moving guide rod, the outer end of the toggle block slides upward and extends out of the moving guide groove, a nut piece is threadedly connected to the externally threaded horizontal branch pipe, and the nut piece contacts the toggle block, a through hole is provided at the connection between the horizontal branch pipe and the U-shaped seat, a plug hole is provided on the hinge sleeve, and the plug hole is rotationally aligned with the through hole, the end of the moving guide rod is connected to a limiting plug rod, and the outer end of the limiting plug rod slides through the plug hole and is aligned with the through hole, and the end of the moving guide rod is connected to the bottom of the horizontal branch pipe through a spring piece.

[0010] Furthermore, the sliding limit assembly also includes a positioning rod, the toggle block located below extends downward to the head of the locking bolt, and the toggle block and the locking bolt head are provided with positioning rods on the corresponding sides, the locking bolt head is provided with an annular ring on the outer ring surface, and a plurality of alignment holes are provided in a circular array on the annular ring, and the alignment holes are rotationally aligned with the positioning rod.

[0011] Further, a lifting rod is installed inside the expanding rod, and the expanding plate is made of a skin-friendly material and is detachably installed on the lifting rod.

[0012] Further, the strap support mechanism includes a mounting seat, a strap strip, a buckle seat, and a buckle member. Mounting seats are symmetrically and fixedly provided on the outer circumferential surface of the pulling ring, and a strap strip is detachably installed on each mounting seat. Buckle seats are installed at positions symmetrical to the mounting seats on the outer circumferential surface of the pulling ring, and a buckle member is provided on each buckle seat. The buckle member cooperates with a buckle hole formed on the strap strip.

[0013] The present invention has the following beneficial effects:

[0014] 1. Through the cooperation of the power driving mechanism and the expanding mechanism provided on the pulling ring, the power driving mechanism can drive the expanding mechanism to rotate annularly on the pulling ring, and thus can automatically adjust the position of the expanding mechanism on the pulling ring in real time. Further, it is convenient for the expanding mechanism to adjust the state at any time and perform pulling and expanding adjustment on the position to be reshaped, so that it will not interfere with the normal surgical treatment of the reshaping part by medical staff. After the pulling device is used up, the expanding mechanism is removed from the expanding part, and then the strap support mechanism is removed from the leg, which is convenient for quickly disassembling and removing the pulling device.

[0015] 2. The present invention is provided with a sliding limit component in the horizontal branch pipe, so that the horizontal branch pipe can not only play a role in swing support for the expanding rod, but also play a role in horizontal guiding for the sliding triangular block and the limiting insertion rod. When the expanding rod swings, the gear part will not rotate freely, and when the gear part drives the expanding rod to rotate circumferentially, the expanding rod will not swing freely, thereby improving the safe pulling and expanding effect of the pulling device on the perineum part to be reshaped.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the disclosed embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the pulling ring of the disclosed embodiment of the present invention;

[0020] Figure 3A diagram showing the coordination state of the power drive mechanism and the expansion mechanism of the disclosed embodiment of the present invention;

[0021] Figure 4 A diagram showing the matching state of the expansion mechanism and the pulling adjustment assembly of the disclosed embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a sliding limiter assembly according to an embodiment of the present invention;

[0023] Figure 6 It is a cross-sectional view of a horizontal branch pipe according to an embodiment disclosed in the present invention.

[0024] In the figure: 1, pulling ring; 11, annular cavity;

[0025] 2. Internal gear ring;

[0026] 3. Power drive mechanism; 31. Gear unit; 32. Rotating shaft; 33. Upper support plate; 34. Lower support plate; 35. Roller; 36. Side plate; 37. Locking bolt; 371. Alignment socket;

[0027] 4. expansion mechanism; 41. horizontal branch pipe; 411. movable guide groove; 42. U-shaped seat; 43. hinged rod; 44. hinged sleeve; 441. plug-in hole; 45. expansion rod; 46. expansion plate; 47. lifting rod;

[0028] 5. Pull adjustment assembly; 51. Oblique tie rod; 52. Capsule column; 53. Spring member; 54. Air guide tube; 55. Support seat; 56. Spherical capsule;

[0029] 6. Sliding limit assembly; 61. Triangular block; 62. Guide rod; 63. Moving guide rod; 64. Toggle block; 65. Nut; 66. Limiting rod; 67. Positioning rod;

[0030] 7. Strap support mechanism; 71. Mounting seat; 72. Strap strip; 73. Buckle seat; 74. Buckle piece. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0033] Please refer to Figures 1-6 As shown, the present invention is a circular traction device for perineum plastic surgery, including a traction ring 1, and an internal gear ring 2 is fixedly arranged on the surface of the traction ring 1; at least two groups of power driving mechanisms 3 are arranged on the traction ring 1, and the power driving mechanisms 3 are meshed and driven with the internal gear ring 2; an expansion mechanism 4 is installed on each group of the power driving mechanisms 3, and the expansion mechanism 4 is used for expanding and supporting the perineum plastic surgery site; a strap support mechanism 7 is arranged on the traction ring 1, and the strap support mechanism 7 is used for fastening the traction ring 1 to the root of the patient's leg;

[0034] Specifically, the present invention arranges two groups of strap support mechanisms 7 on the outer circumferential surface of the traction ring 1. When the traction device is needed to assist in expanding and supporting the perineum during plastic surgery, first install the power driving mechanism 3 on the traction ring 1 at this time, and place the traction ring 1 at the perineum, and then fix the traction ring 1 through the strap support mechanism 7. At this time, after the power driving mechanism 3 drives the expansion mechanism 4 to rotate around the traction ring 1 to a suitable position, the expansion mechanism 4 continues to work to pull and expand the site to be operated on, so as to facilitate the medical staff to perform plastic surgery on the perineum. When it is necessary to adjust the expansion part of the expansion mechanism 4, only need to disengage the expansion mechanism 4 from the expansion part at this time, and then drive the power driving mechanism 3 to continue to rotate around the traction ring 1, so as to facilitate the circular adjustment of the expansion mechanism 4, and then facilitate the expansion mechanism 4 to be able to adjust the state at any time and perform traction and expansion adjustment on the position to be plasticized, so that it will not interfere with the normal surgical treatment of the plastic surgery site by the medical staff. When the traction device is used up, remove the expansion mechanism 4 from the expansion part, and then remove the strap support mechanism 7 from the leg, so as to facilitate the quick disassembly and removal of the traction device.

[0035] In this embodiment, the power driving mechanism 3 includes a gear portion 31, a rotating shaft 32, an upper support plate 33, a lower support plate 34, a roller 35, a side vertical plate 36 and a locking bolt 37. The gear portion 31 meshes with the internal gear ring 2, and the gear portion 31 is rotatably connected to the upper support plate 33 and the lower support plate 34 through the cooperation of the rotating shaft 32 and bearings. The upper support plate 33 and the lower support plate 34 are respectively located on the upper and lower surfaces of the gear portion 31, and a servo motor connected to the gear portion 31 is fixedly provided on the upper surface of the upper support plate 33. An annular cavity 11 is formed on the upper surface of the pulling ring 1. The bottom end of the rotating shaft 32 extends out of the lower support plate 34 and is rotatably inserted into the annular cavity 11 through the roller 35. The outer ends of the upper support plate 33 and the lower support plate 34 are vertically connected to the same side vertical plate 36. The side vertical plate 36 extends downward to the lower surface of the pulling ring 1. An annular cavity 11 is also formed on the inner circumferential surface of the pulling ring 1. A locking bolt 37 is threadedly connected to the downward extending portion of the side vertical plate 36. The tail of the screw rod of the locking bolt 37 is rotatably inserted into the annular cavity 11 formed on the inner circumferential surface through the roller 35;

[0036] Specifically, when it is necessary to install the expansion mechanism 4 onto the traction ring 1 and make it rotate annularly along the traction ring 1 for traction, first align the roller 35 at the bottom of the rotating shaft 32 with the annular cavity 11 with the opening facing upwards, and make the gear portion 31 correspond to the internal tooth ring 2. Then, push the gear portion 31 downwards to make it mesh with the internal tooth ring 2. The roller 35 at the bottom end of the rotating shaft 32 will be inserted into the annular cavity 11 to support the upper support plate 33 and the lower support plate 34. The side vertical plate 36 will be located on the inner circumferential surface of the traction ring 1. Then, rotate the head of the locking bolt 37 to drive the roller 35 at the end of the screw rod to move and insert into the annular cavity 11 opened on the inner circumferential surface. Further, the roller 35 at the bottom end of the rotating shaft 32 is inserted into the annular cavity 11 with the opening facing upwards, which can limit the gear portion 31 in the horizontal radial direction. The locking bolt 37 drives another roller 35 to insert into the annular cavity 11 with the opening facing the center, which can limit the up-and-down horizontal movement of the gear portion 31, so that the gear portion 31 can stably and safely mesh with the internal tooth ring 2. At the same time, when the servo motor drives the gear portion 31 to rotate, the gear portion 31 will drive the expansion mechanism 4 to rotate through the upper support plate 33, the lower support plate 34 and the side vertical plate 36. The vertically inserted roller 35 and the horizontally inserted roller 35 can play a role in limiting and guiding the rolling, so that it can stably and safely drive the expansion mechanism 4 to rotate annularly, and there will be no phenomenon that the expansion mechanism 4 detaches and falls from the traction ring 1 during rotation, thus affecting the accurate and safe annular traction and expansion treatment of the perineal part to be operated on by the expansion mechanism 4. When it is necessary to disassemble the expansion mechanism 4 from the traction ring 1 for disinfection and cleaning, only need to rotate the head of the locking bolt 37 to drive the roller 35 to disengage from the annular cavity 11 opened on the inner circumferential surface, and then pull the gear portion 31 upwards to quickly disengage it from the internal tooth ring 2, so as to facilitate the synchronous disassembly of the expansion mechanism 4 and the power driving mechanism 3 from the traction ring 1, and then disinfect and clean, so that the power driving mechanism 3 can not only drive the expansion mechanism 4 to rotate annularly around the traction ring 1, but also quickly disassemble and assemble the expansion mechanism 4 from the traction ring 1 for use.

[0037] In this embodiment, the expansion mechanism 4 includes a horizontal branch pipe 41, a U-shaped seat 42, a hinge rod 43, a hinge sleeve 44, an expansion rod 45 and an expansion plate 46. A horizontal branch pipe 41 is horizontally installed on the outer side surface of the side vertical plate 36, and a U-shaped seat 42 is fixedly provided at the outer end of the horizontal branch pipe 41. A hinge sleeve 44 is rotatably installed in the U-shaped seat 42 through a hinge rod 43. An expansion rod 45 is vertically connected to the hinge sleeve 44, and an expansion plate 46 is installed at the bottom end of the expansion rod 45. The top end of the expansion rod 45 is connected to the servo motor through a traction adjustment assembly 5;

[0038] Specifically, when the gear part 31 drives the expansion rod 45 and the expansion plate 46 to rotate to a proper position, then after controlling the expansion plate 46 at the bottom of the expansion rod 45 to move downward to a proper position, at this time, the pulling and adjusting assembly 5 is controlled to work, so that it pushes the top of the expansion rod 45 to swing towards the center of the pulling ring 1. At this time, the hinge sleeve 44 will swing on the U-shaped seat 42 through the hinge rod 43. Furthermore, the bottom end part of the expansion rod 45 drives the expansion plate 46 to move towards the outer circumferential surface of the pulling ring 1, so as to increase the distance between the two symmetric expansion plates 46, thus facilitating the pulling and auxiliary expansion of the position to be operated on the perineum. Through the meshing transmission of the gear part 31 and the internal gear ring 2, the position of the expansion plate 46 can be adjusted slowly and automatically, so that at least two groups of expansion plates 46 on the pulling ring 1 can be in a symmetric position for pulling and expansion, or in an asymmetric state for pulling and expansion, thereby improving the application range of the annular pulling device of the present invention.

[0039] In this embodiment, the pulling and adjusting assembly 5 includes an inclined pull rod 51, a bladder column 52, a spring member 53, an air duct 54, a support seat 55 and a spherical bladder 56. The side surface of the top end part of the expansion rod 45 is hinged with the inclined pull rod 51. The other inclined pull rod 51 is obliquely installed on the servo motor. The two inclined pull rods 51 are connected by the bladder column 52. The bladder column 52 is sleeved with the spring member 53. The two end parts of the spring member 53 are respectively connected to the two inclined pull rods 51. The tail end part of the bladder column 52 is communicated with the air duct 54. The other end opening of the air duct 54 is communicated into the spherical bladder 56 through a rigid tube. The spherical bladder 56 is connected to the servo motor through the cooperation of the support seat 55 and the rigid tube.

[0040] Specifically, when the expansion rod 45 needs to be swung and expanded, for example, when the top of the expansion rod 45 is swung toward the center of the pulling ring 1, the operator presses the spherical capsule 56 to inject gas into the capsule column 52 through the air guide tube 54. Since the capsule column 52 is located inside the spring member 53, and the bottom end of the capsule column 52 is connected to the servo motor through the inclined rod 51 in a fixed state, the capsule column 52 will only expand upward along the length direction. At this time, the spring member 53 will be stretched, and the expanded capsule column 52 will push the expansion rod 45 to swing through the inclined rod 51 obliquely connected above, thereby realizing the traction and expansion of the perineum by the expansion plate 46. The valve body on the spherical capsule 56 releases the gas in the spherical capsule 56, and the gas in the capsule column 52 is also released synchronously through the air guide tube 54, and then the recovery of the spring member 53 will drive the top end of the expansion rod 45 to move toward the ring body direction of the traction ring 1, so as to facilitate the resetting and adjustment of the expanded expansion plate 46, and facilitate the power drive mechanism 3 to drive the expansion rod 45 and the expansion plate 46 to rotate and pull safely and stably. Moreover, since the expansion rod 45 is swung and adjusted by the traction adjustment assembly 5 above the traction ring 1, it does not interfere with the traction and expansion treatment of the perineum surgical position by the expansion plate 46 at the bottom of the expansion rod 45, and can also improve the convenience and speed of the expansion adjustment of the expansion plate 46.

[0041] In this embodiment, a sliding limit assembly 6 is provided in the horizontal branch pipe 41, and the sliding limit assembly 6 includes a triangular block 61, a guide rod 62, a movable guide rod 63, a toggle block 64, a nut member 65 and a limit plug rod 66. The pipe mouth of the horizontal branch pipe 41 extends into the cavity between the upper support plate 33 and the lower support plate 34. The pipe mouth of the horizontal branch pipe 41 facing the gear part 31 is provided with a triangular block 61. The triangular inclined surface of the triangular block 61 is plugged into the tooth groove of the gear part 31, and the inner side surface of the triangular block 61 is slidably inserted into the horizontal branch pipe 41 through the guide rod 62. The inner end of the guide rod 62 is connected to the movable guide rod 63. The outer tube wall of the horizontal branch pipe 41 is threaded, and along its horizontal length A moving guide groove 411 is provided, and a toggle block 64 is connected to the outer rod wall of the moving guide rod 63. The outer end of the toggle block 64 slides upward and extends out of the moving guide groove 411. A nut member 65 is threadedly connected to the externally threaded horizontal branch pipe 41, and the nut member 65 contacts the toggle block 64. A through hole is provided at the connection between the horizontal branch pipe 41 and the U-shaped seat 42. A plug hole 441 is provided on the hinge sleeve 44, and the plug hole 441 is rotationally aligned with the through hole. The end of the moving guide rod 63 is connected to a limiting plug rod 66, and the outer end of the limiting plug rod 66 slides through the plug hole 441 and is aligned with the through hole. The end of the moving guide rod 63 is connected to the bottom of the horizontal branch pipe 41 through a spring member 53.

[0042] Specifically, in order to prevent the expansion plate 46 from producing a circumferential displacement due to the malfunction of the servo motor when the expansion plate 46 is pulling and expanding, which may easily cause the swinging expansion plate 46 to damage the pulling part; therefore, when the expansion rod 45 needs to be swung and adjusted, the threaded member needs to be rotated to move it in the direction of the side plate 36. At this time, the moving nut member 65 will push the toggle block 64 to slide in the moving guide groove 411, so that the moving guide rod 63 will push the triangular inclined surface of the triangular block 61 through the guide rod 62 to be inserted into the tooth groove of the gear part 31. At this time, the water The spring member 53 in the horizontal branch pipe 41 will be stretched, so that the triangular block 61 can limit and fix the gear part 31 through the cooperation of the guide rod 62 and the fixed horizontal branch pipe 41, so as to prevent the gear part 31 from rotating erroneously and causing the expansion plate 46 to damage the pulling part; and when the gear part 31 needs to mesh with the inner gear ring 2 to rotate, so as to drive the expansion rod 45 and the expansion plate 46 to rotate in a circle, the nut member 65 is rotated at this time to make it slide in the direction away from the side plate 36, and at this time, the elastic restoring force of the spring member 53 in the horizontal branch pipe 41 will be driven by the moving guide rod 63 and the guide rod 62 to move the gear part 31. The movable triangle block 61 is disengaged from the tooth groove of the gear part 31, and the toggle block 64 will slide synchronously at this time. When the movable guide rod 63 slides in the horizontal branch pipe 41 toward the U-shaped seat 42, the limit rod 66 will slide through the through hole and insert into the plug hole 441. At this time, the limit rod 66 will limit and fix the hinge sleeve 44, so that when the gear part 31 meshes and rotates on the inner gear ring 2, the expansion rod 45 will only rotate synchronously with the gear part 31, and will not swing freely, thereby preventing the expansion rod 45 from driving the expansion plate 46 to rotate in a circle. The rod 45 may swing freely due to an accidental touch, which may cause unnecessary contact damage to the part of the perineum that is undergoing plastic surgery. As a result, the horizontal branch pipe 41 can not only support the expansion rod 45 for swinging, but also guide the sliding triangular block 61 and the limiting plug 66 horizontally, so that when the expansion rod 45 swings, the gear part 31 will not rotate freely, and when the gear part 31 drives the expansion rod 45 to rotate in a circle, the expansion rod 45 will not swing freely, thereby improving the safe traction and expansion effect of the traction device on the part of the perineum to be plastic surgery.

[0043] In this embodiment, the sliding limit assembly 6 further includes a positioning plug rod 67, the toggle block 64 located below extends downward to the head of the locking bolt 37, and the toggle block 64 and the locking bolt 37 head are provided with a positioning plug rod 67 on the side corresponding to the head, and the head of the locking bolt 37 is provided with an annular ring, and a plurality of alignment holes 371 are provided in a circumferential array on the annular ring, and the alignment holes 371 are rotationally aligned with the positioning plug rod 67;

[0044] Specifically, when the nut member 65 pushes the toggle block 64 to slide in the direction of the side plate 36, the toggle block 64 will drive the push rod to slide and insert into the alignment hole 371, so that it can rotate and limit the locking bolt 37, thereby preventing the operator from accidentally touching the head of the locking bolt 37, causing the power drive mechanism 3 and the expansion mechanism 4 to detach from the pulling ring 1 and fall off; and when the nut member 65 slides in the opposite direction, the positioning rod 67 will slide in the opposite direction in the alignment hole 371, and the positioning rod 67 will not detach from the alignment hole 371 at this time, thereby preventing the gear part 31 from meshing and rotating on the inner gear ring 2, because the roller 35 at the end of the screw of the locking bolt 37 rotates in the annular cavity 11 opened on the inner ring surface, This causes the locking bolt 37 to rotate, which in turn affects the safe and stable fixation of the locking bolt 37 to the side vertical plate 36, the upper support plate 33 and the lower support plate 34, thereby affecting the stable meshing transmission of the gear portion 31 and the inner gear ring 2. When it is necessary to remove the power drive mechanism 3 and the expansion mechanism 4 from the pulling ring 1, the nut member 65 is continued to be rotated to make it continue to slide toward the U-shaped seat 42. At this time, the toggle block 64 will drive the positioning rod 67 to completely disengage from the alignment hole 371, and the sliding limit rod 66 will continue to move into the plug hole 441, thereby facilitating the locking bolt 37 to rotate and drive the roller 35 to disengage from the annular cavity 11, thereby facilitating the power drive mechanism 3 and the expansion mechanism 4 to be quickly removed from the pulling ring 1 for cleaning.

[0045] In this embodiment, a lifting rod 47 is installed inside the expansion rod 45, and the expansion plate 46 is made of skin-friendly material and can be detachably installed on the lifting rod 47; specifically, by adjusting the height of the lifting rod 47, it is convenient to drive the expansion plate 46 made of skin-friendly material to be raised and lowered, thereby facilitating the pulling and expansion of different parts of the perineum to be reshaped.

[0046] In this embodiment, the strap support mechanism 7 includes a mounting seat 71, a strap strip 72, a buckle seat 73 and a buckle 74. The outer ring surface of the pulling ring 1 is symmetrically fixed with the mounting seat 71, and each mounting seat 71 can be detachably mounted with a strap strip 72. The outer ring surface of the pulling ring 1 is symmetrically mounted with a buckle seat 73, and each of the buckle seats 73 is provided with a buckle 74. The buckle 74 is connected to the buckle on the strap strip 72. Buckle hole cooperation; specifically, after putting the traction ring 1 into the specified position, pass the strap strip 72 around the thigh, and make the buckle hole correspond to the buckle piece 74, and then rotate the buckle piece 74 to fix the strap strip 72 to the buckle seat 73, so as to fix the traction ring 1 to the front of the perineum; twist the buckle piece 74 to disengage it from the buckle hole of the strap strip 72, so that the strap strip 72 can be removed from the patient's leg, thereby facilitating the removal of the traction ring 1 from the perineum.

[0047] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A ring-shaped traction device for perineal plastic surgery, characterized in that: It comprises a pulling ring (1), the surface of which is fixedly provided with an inner tooth ring (2); The pulling ring (1) is provided with at least two groups of power drive mechanisms (3), and the power drive mechanisms (3) are meshed with the inner gear ring (2) for transmission; Each group of the power drive mechanisms (3) is equipped with an expansion mechanism (4), and the expansion mechanism (4) is used to expand the perineal plastic surgery site; The pulling ring (1) is provided with a strap support mechanism (7), and the strap support mechanism (7) is used to fasten the pulling ring (1) to the base of the patient's leg.

2. The annular traction device for perineal plastic surgery according to claim 1, characterized in that: The power drive mechanism (3) comprises a gear portion (31), a rotating shaft (32), an upper support plate (33), a lower support plate (34), a roller (35), a side plate (36) and a locking bolt (37); the gear portion (31) is meshed with the inner gear ring (2), and the gear portion (31) is rotatably connected to the upper support plate (33) and the lower support plate (34) through the cooperation of the rotating shaft (32) and the bearing; the upper support plate (33) and the lower support plate (34) are respectively located on the upper and lower surfaces of the gear portion (31); and a servo motor connected to the gear portion (31) is fixedly disposed on the upper surface of the upper support plate (33); and the upper surface of the pulling ring (1) is An annular cavity (11) is provided, the bottom end of the rotating shaft (32) extends out of the lower support plate (34) and is inserted into the annular cavity (11) by rotating through a roller (35), the outer ends of the upper support plate (33) and the lower support plate (34) are vertically connected to the same side plate (36), the side plate (36) extends downward to the lower surface of the pulling ring (1), the inner ring surface of the pulling ring (1) is also provided with an annular cavity (11), the downward extending portion of the side plate (36) is threadedly connected with a locking bolt (37), the screw tail of the locking bolt (37) is inserted into the annular cavity (11) provided on the inner ring surface by rotating through a roller (35).

3. The annular traction device for perineal plastic surgery according to claim 2, characterized in that: The expansion mechanism (4) comprises a horizontal branch pipe (41), a U-shaped seat (42), a hinged rod (43), a hinged sleeve (44), an expansion rod (45) and an expansion plate (46); the horizontal branch pipe (41) is horizontally installed on the outer side surface of the side vertical plate (36), and the outer end of the horizontal branch pipe (41) is fixedly provided with a U-shaped seat (42); the hinged sleeve (44) is rotatably installed in the U-shaped seat (42) through the hinged rod (43); the expansion rod (45) is vertically connected to the hinged sleeve (44), and the bottom end of the expansion rod (45) is installed with an expansion plate (46); the top end of the expansion rod (45) is connected to the servo motor through a pulling adjustment component (5).

4. The annular traction device for perineal plastic surgery according to claim 3, characterized in that: The pulling adjustment assembly (5) comprises an inclined rod (51), a capsule column (52), a spring component (53), an air guide tube (54), a support seat (55) and a spherical capsule (56). The top end of the expansion rod (45) is hingedly connected to the inclined rod (51). The other inclined rod (51) is obliquely installed on the servo motor. The two inclined rods (51) are connected by a capsule column (52). The capsule column (52) is provided with a spring component (53) on its outer sleeve. The two ends of the spring component (53) are respectively connected to the two inclined rods (51). The tail end of the capsule column (52) is connected to the air guide tube (54). The other end of the air guide tube (54) is connected to the spherical capsule (56) through a hard tube. The spherical capsule (56) is connected to the servo motor through the cooperation of the support seat (55) and the hard tube.

5. The annular traction device for perineal plastic surgery according to claim 3, characterized in that: The horizontal branch pipe (41) is provided with a sliding limit assembly (6), and the sliding limit assembly (6) comprises a triangular block (61), a guide rod (62), a movable guide rod (63), a toggle block (64), a nut member (65) and a limit plug rod (66). The pipe mouth of the horizontal branch pipe (41) extends into the cavity between the upper support plate (33) and the lower support plate (34). The pipe mouth of the horizontal branch pipe (41) facing the gear part (31) is provided with a triangular block (61). The triangular inclined surface of the triangular block (61) and the tooth groove of the gear part (31) are mutually plugged and matched, and the inner side surface of the triangular block (61) is slidably inserted into the horizontal branch pipe (41) through the guide rod (62). The inner end of the guide rod (62) is connected to the movable guide rod (63). The outer pipe wall of the horizontal branch pipe (41) is threaded and has a horizontal length direction. A moving guide groove (411) is provided, and a toggle block (64) is connected to the outer rod wall of the moving guide rod (63), and the outer end of the toggle block (64) slides upward and extends out of the moving guide groove (411). A nut member (65) is threadedly connected to the externally threaded horizontal branch pipe (41), and the nut member (65) contacts the toggle block (64). A through hole is provided at the connection between the horizontal branch pipe (41) and the U-shaped seat (42), and a plug hole (441) is provided on the hinge sleeve (44), and the plug hole (441) is rotationally aligned with the through hole. The end of the moving guide rod (63) is connected to a limiting plug rod (66), and the outer end of the limiting plug rod (66) slides through the plug hole (441) and is aligned with the through hole. The end of the moving guide rod (63) is connected to the bottom of the horizontal branch pipe (41) through a spring member (53).

6. The annular traction device for perineal plastic surgery according to claim 5, characterized in that: The sliding limit assembly (6) also includes a positioning rod (67), the toggle block (64) located below extends downward to the head of the locking bolt (37), and the toggle block (64) and the locking bolt (37) The head is provided with a positioning rod (67) on the side corresponding to the head, and the head of the locking bolt (37) is provided with an annular ring. A plurality of alignment holes (371) are provided in a circular array on the annular ring, and the alignment holes (371) are rotationally aligned with the positioning rod (67).

7. The annular traction device for perineal plastic surgery according to claim 3, characterized in that: A lifting rod (47) is installed inside the expansion rod (45), and the expansion plate (46) is made of skin-friendly material and can be detachably installed on the lifting rod (47).

8. The annular traction device for perineal plastic surgery according to claim 1, characterized in that: The strap support mechanism (7) comprises a mounting seat (71), a strap strip (72), a buckle seat (73) and a buckle component (74); the mounting seat (71) is symmetrically fixedly provided on the outer ring surface of the pulling ring (1), and each mounting seat (71) is detachably provided with a strap strip (72); the buckle seat (73) is symmetrically provided on the outer ring surface of the pulling ring (1) and the mounting seat (71), and each buckle component (74) is provided on the buckle seat (73); the buckle component (74) cooperates with a buckle hole provided on the strap strip (72).

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