Perineal side cutting device

Abstract

The invention belongs to the technical field of medical apparatuses and instruments, and provides a perineal side cutting device aiming at the technical problem that a doctor cannot accurately control the cutting angle of a perineal side incision in the existing perineal side cutting scissors, the perineal side cutting device comprises a perineal side cutting scissors, and a connecting sleeve is arranged on the outer side of a rotating shaft of the perineal side cutting scissors; the two ends of a rotating shaft of the lateral perineotomy scissors are connected with the inner side face of the connecting sleeve, and an angle adjusting and measuring mechanism used for adjusting and measuring the perineum shearing angle is arranged on the outer side face of the connecting sleeve. The angle adjusting and measuring mechanism is provided with a positioning mechanism used for positioning the position of a perineum joint line, the positioning mechanism is provided with an angle fixing mechanism, the angle fixing mechanism is connected with the angle adjusting and measuring mechanism in a sliding mode, and the angle adjusting and measuring mechanism is further provided with a perineum fixing mechanism used for clamping and fixing the perineum. And the perineum fixing mechanism is connected with the angle fixing mechanism. According to the invention, the adjustment and accurate measurement of the perineal lateral cutting angle can be realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an episiotomy device. Background Art

[0002] Episiotomy is a common assisted delivery procedure in obstetrics and gynecology. Its primary purpose is to prevent perineal tears, protect the pelvic floor muscles, and minimize trauma during childbirth. During natural childbirth, if the perineum is too tight or the fetus is large as it passes through the birth canal, perineal tears can easily occur, potentially leading to serious complications such as anal and urethral injuries.

[0003] Episiotomy is usually performed under local anesthesia, and the surgical methods include median incision and oblique incision. Median incision is suitable for cases where the fetus is small and the perineum is more elastic, while oblique incision is more commonly used when the fetus is large or the perineum is tight. When performing an oblique incision, the doctor needs to perform the episiotomy at a precise cutting angle, specifically 0.5 cm above the perineal symphysis line and making an oblique incision 25°~30° to the left. This method can reduce damage to the anal sphincter, reduce the risk of surgery to the patient, and achieve better results.

[0004] However, the incision blades of existing episiotomy scissors are slightly curved relative to the handles, and generally lack the ability to accurately indicate the cutting direction and angle. A sharp angle can easily injure the rectum, while a sharp angle can easily injure surrounding tissues and cause excessive bleeding. Therefore, using existing episiotomy scissors can make it difficult for doctors to precisely control the cutting angle of the episiotomy. Furthermore, an irregular episiotomy wound can increase postoperative complications for patients. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a perineal incision device.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A perineal episiotomy device includes a perineal episiotomy scissors, wherein a connecting sleeve is provided on the outer side of a rotating shaft of the perineal episiotomy scissors, and both ends of the rotating shaft of the perineal episiotomy scissors are respectively connected to the inner side surface of the connecting sleeve, and an angle adjustment and measurement mechanism for adjusting and measuring the perineal shearing angle is provided on the outer side surface of the connecting sleeve; The angle adjustment and measuring mechanism is provided with a positioning mechanism for positioning the perineum joint line, and the positioning mechanism is provided with an angle fixing mechanism, which is slidingly connected to the angle adjustment and measuring mechanism. The angle adjustment and measuring mechanism is also provided with a perineum fixing mechanism for clamping and fixing the perineum, and the perineum fixing mechanism is connected to the angle fixing mechanism.

[0007] Preferably, the angle adjustment and measuring mechanism includes a connecting rod, a connecting ring, a connecting shaft, a rotating rod, an auxiliary rod and an adjusting rod. The connecting rod and the connecting shaft are respectively vertically arranged on the outer side of the connecting sleeve. The connecting ring is arranged on the connecting shaft. The rotating rod is connected to the outer side surface of the connecting ring, and the rotating rod is connected to the movable end of the connecting rod. The rotating rod and the blade of the episiotomy shears are located in the same plane. The adjusting rod is cross-arranged on the rotating rod. One end of the adjusting rod is connected to the auxiliary rod, and the other end is slidably connected to the angle fixing mechanism. The positioning mechanism is arranged on the connecting shaft.

[0008] Preferably, the positioning mechanism includes a rotating ring, a first positioning rod, a second positioning rod, a first fixing member and a second fixing member. The rotating ring is rotatably connected to the angle adjustment measuring mechanism. One end of the first positioning rod and the second positioning rod are respectively connected to the top and bottom of the outer side of the rotating ring. The first fixing member and the second fixing member are respectively connected to the rear side of the other end of the first positioning rod and the second positioning rod. The angle fixing mechanism is arranged on the second positioning rod.

[0009] Preferably, the angle fixing mechanism includes a locking mechanism, a mounting seat, a support block, an adjustment fixing unit and a connecting rod, the mounting seat is arranged on the front side surface of the second second positioning rod, the mounting seat is provided with an adjustment hole, the angle adjustment measuring mechanism is slidably connected to the adjustment hole, the second positioning rod is provided with a sliding groove, the sliding groove is located below the mounting seat, the support block is transversely arranged inside the sliding groove, the adjustment fixing unit is slidably connected to the sliding groove, and the adjustment fixing unit passes through the support block to fix the angle adjustment measuring mechanism, one end of the connecting rod is connected to the adjustment fixing unit, and the other end passes through the support block and the mounting seat and extends to the inside of the adjustment hole, the other end of the connecting rod is in contact with the bottom of the adjusting rod, the locking mechanism is arranged on the second positioning rod, and the locking mechanism is connected to the bottom of the adjustment fixing unit.

[0010] Preferably, the locking mechanism includes a pushing rod, a limiting groove, a U-shaped through groove, a power mechanism and a locking unit. The top of the pushing rod is connected to the bottom of the adjusting and fixing unit. The limiting groove is opened on the front side of the second positioning rod. The top of the limiting groove is connected to the bottom of the sliding through groove. The U-shaped through groove is opened at the bottom of the rear side of the pushing rod. The power mechanism is arranged inside the pushing rod. The locking units are respectively arranged inside the limiting groove and the U-shaped through groove, and the locking unit is connected to the power mechanism.

[0011] Preferably, the locking unit includes a movable groove, an installation groove, a return spring, a connecting plate, a first toothed track and a second toothed track, the first gear track is arranged on the bottom of the limiting groove, the movable groove is opened on the bottom of the U-shaped through groove, the installation groove is opened on the bottom of the movable groove, the connecting plate is movably arranged inside the movable groove, the second toothed track is arranged on the rear side surface of the connecting plate, the second toothed track is engaged with the first toothed track, the return spring is arranged inside the installation groove, and the two ends of the return spring are respectively connected to the front side surface of the connecting plate and the bottom of the installation groove, and the connecting plate is connected to the power mechanism.

[0012] Preferably, the power mechanism includes a first accommodating chamber, a second accommodating chamber, a third accommodating chamber, a first piston plate, a second piston plate, a third piston plate, a pressing rod, a pressing block, a first pull rod, a second pull rod and a channel. The first accommodating chamber, the second accommodating chamber, the third accommodating chamber and the channel are all opened inside the push rod, and the channels are respectively connected to the first accommodating chamber, the second accommodating chamber and the third accommodating chamber. The first piston plate, the second piston plate and the third piston plate are respectively sealed and slidably arranged inside the first accommodating chamber, the second accommodating chamber and the third accommodating chamber. One end of the pressing rod is connected to the first piston plate, and the other end passes through the front side of the push rod and extends to the outside of the push rod. The pressing block is arranged on the other end of the pressing rod. One end of the first pull rod and the second pull rod are respectively connected to the second piston plate and the third piston plate, and the other ends of the first pull rod and the second pull rod pass through the second accommodating chamber and the third accommodating chamber and are respectively connected to the locking unit.

[0013] Preferably, the adjustment and fixing unit includes a connecting block, two hinged rods, two fixing blocks, two first slide grooves, two second slide grooves and two mounting through holes, the connecting block is a triangular structure, the bottom of the connecting block is connected to the top of the locking mechanism, the top of the connecting block is connected to the bottom of the connecting rod, the two first slide grooves are symmetrically arranged on the two inclined side surfaces of the connecting block, the two mounting through holes are symmetrically arranged on the supporting block, the two second slide grooves are symmetrically arranged on the front side and rear side surfaces of the mounting seat, and the two second slide grooves are both connected to the adjustment holes, one end of the two hinged rods are slidably connected to the corresponding first slide grooves, the other ends of the two hinged rods pass through the corresponding mounting through holes, the two fixing blocks are hinged to the other ends of the corresponding hinged rods, the two fixing blocks are slidably set in the corresponding second slide grooves, the two fixing blocks fix the angle adjustment measuring mechanism, and the hinged rods are rotatably connected to the inner walls of the corresponding mounting through holes.

[0014] Preferably, the perineum fixation mechanism includes a sealing cylinder, a fourth piston plate, a third pulling rod, a fixing plate, a compression spring, a fourth accommodating chamber and a pushing mechanism. The sealing cylinder is arranged on the rear side surface of the auxiliary rod near the movable end. The fourth accommodating chamber is connected to the interior of the adjusting rod and the auxiliary rod, and the fourth accommodating chamber is connected to the sealing cylinder. The fourth piston plate is sealingly slidably arranged inside the sealing cylinder. One end of the third pulling rod is connected to the fourth piston plate, and the other end passes through the sealing cylinder and extends to the outside of the sealing cylinder. The fixing plate is vertically connected to the bottom of the third pulling rod, one end of the compression spring is connected to the fourth piston plate, and the other end is connected to the inner wall of the end face of the sealing cylinder close to the auxiliary rod, and the pushing mechanism is arranged inside the fourth accommodating chamber.

[0015] Preferably, the pushing mechanism includes a fifth piston plate, a fixed plate, a sixth piston plate, a mounting sleeve and a telescopic rod. The fixed plate is horizontally arranged inside the fourth accommodating chamber, and the fixed plate is located above the sealing cylinder. The fifth piston plate and the sixth piston plate are respectively sealed and slidably connected to the inner wall of the fourth accommodating chamber. The fifth piston plate and the sixth piston plate are respectively located above and below the fixed plate. The bottom of the mounting sleeve is connected to the bottom inner wall of the fourth accommodating chamber. One end of the telescopic rod is socketed with the mounting sleeve, and the other end passes through the sixth piston plate and the fixed plate and is connected to the fifth piston plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The episiotomy device provided by the present invention is provided with a positioning mechanism and an angle adjustment and measuring mechanism on the episiotomy scissors. After the perineal joint line direction is positioned and fixed by the positioning mechanism, the angle between the episiotomy scissors blade and the positioning mechanism is adjusted, and the angle between the episiotomy scissors blade and the positioning mechanism is synchronously driven to adjust and measure the angle (i.e., the episiotomy angle) between the episiotomy scissors blade and the positioning mechanism. That is, the adjustment and measurement of the episiotomy angle can be achieved by simply rotating the handle of the episiotomy scissors, which is simple to operate and easy to implement. (2) The present invention adopts the design of the angle fixing mechanism, which can quickly clamp and lock the adjustment rod after the episiotomy angle is adjusted, thereby limiting the angle of the blade of the episiotomy scissors, thereby preventing the episiotomy scissors handle from shaking during the episiotomy process, thereby preventing the episiotomy angle from changing and causing harm to the patient's body. That is, during the episiotomy process, the doctor can only perform the episiotomy at the predetermined angle, thereby improving the safety of the episiotomy. (3) The present invention is designed with an angle fixing mechanism and a perineum fixing mechanism. While the angle fixing mechanism is used to clamp and lock the adjustment rod, the linkage rod is driven upward, and the pushing mechanism is used to drive the fixing plate to lightly clamp and fix the perineum. This ensures the stability during episiotomy and improves the effect of episiotomy. Moreover, the light clamping and fixing of the perineum and the fixing of the episiotomy angle can be achieved simultaneously, which is simple to operate. (4) The present invention, through the design of the locking mechanism and the adjusting fixing unit, can achieve the clamping, locking and movement of the adjusting rod simply by pressing and releasing the pressing block, which is simple to operate and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a perineal episiotomy device provided in an embodiment of the present invention; Figure 2 A three-dimensional view of the episiotomy device provided by an embodiment of the present invention from another perspective; Figure 3 Schematic diagram of the connection structure of the angle adjustment and measurement mechanism, the positioning mechanism, the angle fixing mechanism and the perineum fixing mechanism in an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of part A in the middle; Figure 5 Schematic diagram of the structure of the angle adjustment measurement mechanism in an embodiment of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of part B in the middle; Figure 7 is a cross-sectional view of an angle adjustment and measurement mechanism according to an embodiment of the present invention; Figure 8 for Figure 7 A partial enlarged schematic diagram of the middle C part; Figure 9 Schematic diagram of the connection structure of the angle fixing mechanism and the positioning mechanism in an embodiment of the present invention; Figure 10 for Figure 9 A partial enlarged schematic diagram of the middle D part; Figure 11 is a cross-sectional view of the angle fixing mechanism and the positioning mechanism in an embodiment of the present invention; Figure 12 for Figure 11 A partial enlarged schematic diagram of the middle E part; Figure 13 for Figure 12 A partial enlarged schematic diagram of the middle F part; Figure 14 is a structural schematic diagram of an angle fixing mechanism in an embodiment of the present invention; Figure: 1, episiotomy scissors; 2, connecting sleeve; 3, angle adjustment measuring mechanism; 301, connecting rod; 302, connecting ring; 303, connecting shaft; 304, rotating rod; 305, auxiliary rod; 306, adjusting rod; 4, positioning mechanism; 401, rotating ring; 402, first positioning rod; 403, second positioning rod; 404, first fixing member; 405, second fixing member; 5, angle fixing mechanism; 501, connecting rod; 50 2. Mounting seat; 503. Support block; 504. Adjustment and fixing unit; 5041. Connecting block; 5042. Articulated rod; 5043. Fixing block; 5044. First slide groove; 5045. Second slide groove; 5046. Mounting through hole; 505. Push rod; 506. Limiting groove; 507. U-shaped through groove; 508. Power mechanism; 5081. First piston plate; 5082. Second piston plate; 5083. Third piston plate; 5 084, pressing rod; 5085, pressing block; 5086, first pulling rod; 5087, second pulling rod; 5088, channel; 509, locking unit; 5091, moving groove; 5092, mounting groove; 5093, restoring spring; 5094, connecting plate; 5095, first toothed track; 5096, second toothed track; 6, perineum fixing mechanism; 601, sealing cylinder; 602, fourth piston plate; 603, third Pull rod; 604, fixed plate; 605, compression spring; 606, fourth accommodating chamber; 607, pushing mechanism; 6071, fifth piston plate; 6072, fixed plate; 6073, sixth piston plate; 6074, mounting sleeve; 6075, telescopic rod; 7, sliding through groove; 8, adjusting hole; 9, first accommodating chamber; 10, second accommodating chamber; 11, third accommodating chamber; 12, slot; 13, first through hole; 14, ventilation duct. DETAILED DESCRIPTION

[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth above. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0019] like Figures 1 to 14As shown, an embodiment of the present invention provides a perineal episiotomy device, including a perineal episiotomy scissors 1, a connecting sleeve 2 is provided on the outer side of the rotating shaft of the perineal episiotomy scissors 1, and the two ends of the rotating shaft of the perineal episiotomy scissors 1 are respectively connected to the inner side of the connecting sleeve 2, and an angle adjustment measuring mechanism 3 for adjusting and measuring the perineal shearing angle is provided on the outer side of the connecting sleeve 2; a positioning mechanism 4 for positioning the perineal joint line is provided on the angle adjustment measuring mechanism 3, and an angle fixing mechanism 5 is provided on the positioning mechanism 4, and the angle fixing mechanism 5 is slidably connected to the angle adjustment measuring mechanism 3, and a perineum fixing mechanism 6 for clamping and fixing the perineum is also provided on the angle adjustment measuring mechanism 3, and the perineum fixing mechanism 6 is connected to the angle fixing mechanism 5.

[0020] In the embodiment of the present invention, the angle adjustment measuring mechanism 3 includes a connecting rod 301, a connecting ring 302, a connecting shaft 303, a rotating rod 304, an auxiliary rod 305 and an adjusting rod 306. The connecting rod 301 and the connecting shaft 303 are respectively arranged vertically on the outer side of the connecting sleeve 2. Specifically, the connecting rod 301 is located below the connecting shaft 303, and the connecting ring 302 is fixedly arranged on the connecting shaft 303; the rotating rod 304 is connected to the outer side surface of the connecting ring 302, and the rotating rod 304 is connected to the movable end of the connecting rod 301. The rotating rod 304 and the blade of the perineal side cutting shears 1 are located in the same plane, and the adjusting rod 306 is cross-arranged on the rotating rod 304. Specifically, the adjusting rod 306 has an arc structure at one end, and one end of the adjusting rod 306 is connected to the auxiliary rod 305. Specifically, one end of the adjusting rod 306 with the arc structure is connected to the auxiliary rod 305, and the other end is slidably connected to the angle fixing mechanism 5, and the positioning mechanism 4 is arranged on the connecting shaft 303. In this embodiment of the present invention, the front and rear sides of the adjustment rod 306 are each provided with a plurality of slots 12 for engaging with the angle fixing mechanism 5. Furthermore, a measuring scale for marking the angle between the adjustment rod 306 and the second positioning rod 403 is provided at the top front side of the adjustment rod 306. Furthermore, the adjustment rod 306 in this embodiment is made of an elastic material such as rubber and can be squeezed inward and deformed under the action of an external force.

[0021] In this embodiment of the present invention, the positioning mechanism 4 includes a rotating ring 401, a first positioning rod 402, a second positioning rod 403, a first fixing member 404, and a second fixing member 405. The rotating ring 401 is rotatably connected to the connecting shaft 303. Specifically, the rotating ring 401 is located between the connecting sleeve, connecting ring 302, and the connecting sleeve 2. One end of the first positioning rod 402 and the second positioning rod 403 are respectively connected to the top and bottom of the outer side of the rotating ring 401. The first positioning rod 402 and the second positioning rod 403 are located on the same straight line. The first fixing member 404 and the second fixing member 405 are respectively connected to the rear sides of the other ends of the first positioning rod 402 and the second positioning rod 403. The angle fixing mechanism 5 is provided on the second positioning rod 403. In this embodiment, the first fixing member 404 and the second fixing member 405 are existing fixing components that can be fixed to human skin, such as silicone suction cups. The inner side of the silicone suction cup is provided with a layer of glue for fixing, which can adhere to human skin, similar to the structure of a chest patch.

[0022] When an episiotomy is required for the patient, the direction of the episiotomy shears 1 is first adjusted so that the first positioning rod 402 and the second positioning rod 403 are in the same straight line with the perineal joint line, that is, in the middle position. Then, one side blade of the episiotomy shears 1 is extended from the vaginal opening, and then fixed to the upper and lower skin of the patient's perineum through the first fixing member 404 and the second fixing member 405 respectively, so as to fix the first positioning rod 402 and the second positioning rod 403. Then, the handle of the episiotomy shears 1 is turned downward so that the blade rotates along the vaginal opening. At this time, the rotating rod 304 rotates synchronously, driving the adjusting rod 306 to rotate synchronously along the angle fixing mechanism 5. When the doctor observes that the angle marked on the adjusting rod 306 meets the episiotomy requirement, the handle of the episiotomy shears 1 is stopped to achieve control and adjustment of the episiotomy angle.

[0023] In this embodiment, the angle fixing mechanism 5 includes a locking mechanism, a mounting seat 502, a support block 503, an adjustment fixing unit 504 and a linkage rod 501. The mounting seat 502 is arranged on the front side of the second positioning rod 403. An adjustment hole 8 is provided on the mounting seat 502. The adjustment rod 306 is slidably connected with the adjustment hole 8. Specifically, the other end of the adjustment rod 306 passes through the adjustment hole 8 and rotates with the rotating rod 304, so that the adjustment rod 306 can slide left and right along the adjustment hole 8; a sliding groove 7 is provided on the second positioning rod 403. The sliding groove 7 is located below the mounting seat 502 and is connected to the bottom of the mounting seat 502. The support block 5 03 is horizontally arranged inside the sliding groove 7; the adjusting and fixing unit 504 is slidably connected to the sliding groove 7, and the adjusting and fixing unit 504 passes through the support block 503 to fix the adjusting rod 306, one end of the connecting rod 501 is connected to the adjusting and fixing unit 504, and the other end passes through the support block 503 and the mounting seat 502, and extends to the inside of the adjusting hole 8, and the support block 503 and the mounting seat 502 are both provided with a first through hole 13 for the connecting rod 501 to pass through, and the other end of the connecting rod 501 is in contact with the bottom of the adjusting rod 306, and the locking mechanism is arranged on the second positioning rod 403, and the locking mechanism is connected to the bottom of the adjusting and fixing unit 504.

[0024] In this embodiment, the locking mechanism includes a pushing rod 505, a limiting groove 506, a U-shaped through groove 507, a power mechanism 508 and a locking unit 509. The top of the pushing rod 505 is connected to the bottom of the adjustment and fixing unit 504. The limiting groove 506 is opened on the front side of the second positioning rod 403. The top of the limiting groove 506 is connected to the bottom of the sliding through groove 7. The U-shaped through groove 507 is opened at the bottom of the rear side of the pushing rod 505. The power mechanism 508 is arranged inside the pushing rod 505. The locking unit 509 is respectively arranged inside the limiting groove 506 and the U-shaped through groove 507. The locking unit 509 is connected to the power mechanism 508.

[0025] In this embodiment, the locking unit 509 includes a movable groove 5091, an installation groove 5092, a restoring spring 5093, a connecting plate 5094, a first toothed track 5095 and a second toothed track 5096. The first gear track 5095 is arranged on the bottom of the limiting groove 506, the movable groove 5091 is opened on the bottom of the U-shaped through groove 507, and the installation groove 5092 is opened on the bottom of the movable groove 5091. The U-shaped through groove 507, the movable groove 5091 and the installation groove 5092 sequentially form a stepped structure; the connecting plate 5094 moves It is arranged inside the movable groove 5091, specifically the connecting plate 5094 can move forward and backward along the movable groove 5091 and the U-shaped through groove 507; the second toothed track 5096 is arranged on the rear side surface of the connecting plate 5094, and the second toothed track 5096 is engaged with the first toothed track 5095, and the return spring 5093 is arranged inside the mounting groove 5092, and the two ends of the return spring 5093 are respectively connected to the front side surface of the connecting plate 5094 and the bottom of the mounting groove 5092, and the connecting plate 5094 is connected to the power mechanism 508.

[0026] In this embodiment, the power mechanism 508 includes a first accommodating chamber 9, a second accommodating chamber 10, a third accommodating chamber 11, a first piston plate 5081, a second piston plate 5082, a third piston plate 5083, a pressing rod 5084, a pressing block 5085, a first pulling rod 5086, a second pulling rod 5087 and a channel 5088. The first accommodating chamber 9, the second accommodating chamber 10, the third accommodating chamber 11 and the channel 5088 are all opened inside the push rod 505, and the channel 5088 is respectively connected to the first accommodating chamber 9, the second accommodating chamber 10 and the third accommodating chamber 11; the first piston plate 5081, the second piston plate 5082 and the third piston plate 5083 are respectively sealed and slidably arranged inside the first accommodating chamber 9, the second accommodating chamber 10 and the third accommodating chamber 11, and the pressing rod 50 One end of 84 is connected to the first piston plate 5081, and the other end passes through the front side of the push rod 505 and extends to the outside of the push rod 505. The pressing block 5085 is arranged on the other end of the pressing rod 5084, and one end of the first pull rod 5086 and the second pull rod 5087 are respectively connected to the second piston plate 5082 and the third piston plate 5083, and the other ends of the first pull rod 5086 and the second pull rod 5087 extend to the outside of the second accommodating chamber 10 and the third accommodating chamber 11, and are respectively connected to the locking unit 509, specifically, the other ends of the first pull rod 5086 and the second pull rod 5087 are connected to the front side of the connecting plate 5094, and a passage is opened inside the push rod 505 for the first pull rod 5086 and the second pull rod 5087 to move through. In an embodiment of the present invention, when the pressing block 5085 is in an unpressed state, the portion of the first piston plate 5081 in the first accommodating chamber 9 that is connected to the channel 5088, the portion of the second piston plate 5082 in the second accommodating chamber 10 that is connected to the channel 5088, the portion of the third piston plate 5083 in the third accommodating chamber 11 that is connected to the channel 5088, and the channel 5088 are filled with fluid. A ventilation duct 14 is provided to connect the interior of the pressing rod 5084 and the pressing block 5085. One end of the ventilation duct 4 is connected to the portion of the first piston plate 5081 in the first accommodating chamber 9 that is not connected to the channel 5088, and the other end passes through the pressing block 5085 and is connected to the atmosphere. Through this design, when the pressing block 5085 is pressed, the pressing rod 5084 can be pushed to move, thereby smoothly driving the first piston plate 5081 to move along the first accommodating chamber 9 in a direction away from 5088.

[0027] When the doctor adjusts the episiotomy angle by turning the handle of the episiotomy shears 1 downward, and when the doctor observes that the angle marked on the adjustment rod 306 meets the episiotomy requirement, the doctor keeps the handle of the episiotomy shears 1 still with one hand, and presses the pressing block 5085 backward with the other hand, driving the pressing rod 5084 to move backward, thereby driving the first piston plate 508 to move backward. At this time, the fluid moves backward synchronously with the first piston plate 508. Since the first accommodating chamber 9, the second accommodating chamber 10 and the third accommodating chamber 11 are interconnected, the fluid in the second accommodating chamber 10 and the third accommodating chamber 11 also flows along the channel 5088 to the first accommodating chamber 9, and flows into the second accommodating chamber 10 and the third accommodating chamber 11. A negative pressure is formed inside the cavity 11, which drives the second piston plate 5082 and the third piston plate 5083 to move toward the part close to the channel 5088, and then drives the first pull rod 5086 and the second pull rod 5087 to move forward, and then drives the connecting plate 5094 and the second toothed track 5096 to move along the U-shaped through groove 507 and the movable groove 5091 toward the direction close to the pressing block 5085. At this time, the restoring spring 5093 is compressed, so that the second toothed track 5096 and the first toothed track 5095 are separated from each other, releasing the limit fixation, and then pushing the push rod 505 upward, driving the adjustment fixing unit 504 to move upward, thereby fixing the adjustment rod 306.

[0028] In this embodiment, the adjustment and fixing unit 504 includes a connecting block 5041, two hinged rods 5042, two fixing blocks 5043, two first sliding grooves 5044, two second sliding grooves 5045 and two mounting through holes 5046. The connecting block 5041 is a triangular structure. The bottom of the connecting block 5041 is connected to the top of the locking mechanism, that is, the bottom of the connecting block 5041 is connected to the top of the push rod 505; the top of the connecting block 5041 is connected to the bottom of the linkage rod 501, the two first sliding grooves 5044 are symmetrically opened on the two inclined side surfaces of the connecting block 5041, and the two mounting through holes 5046 are symmetrically opened on the support block 503; the two The second slide grooves 5045 are symmetrically opened on the front side and the rear side of the mounting seat 502, and the two second slide grooves 5045 are connected to the adjustment hole 8. One end of the two hinged rods 5042 is slidingly connected to the corresponding first slide grooves 5044, and the other ends of the two hinged rods 5042 pass through the corresponding mounting through holes 5046. The two fixed blocks 5043 are hinged to the other ends of the corresponding hinged rods 5042, and the two fixed blocks 5043 are slidingly set in the corresponding second slide grooves 5045. The two fixed blocks 5043 fix the adjusting rod 306, and the hinged rods 5042 are rotatably connected to the inner walls of the corresponding mounting through holes 5046.

[0029] When the doctor presses the pressing block 5085 backward, the second toothed track 5096 and the first toothed track 5095 are separated from each other, the limit fixation is released, and then the pushing rod 505 is pushed upward, and the pushing rod 505 moves upward, driving the connecting block 5041 to move upward. At this time, the two hinged rods 5042 slide downward along the corresponding first sliding grooves 5044 respectively, driving the other ends of the two hinged rods 5042 to rotate along the hinged parts with the corresponding mounting through holes 5046 in the direction of approaching each other, and then driving the two fixing blocks 5043 to slide along the corresponding second sliding grooves 5045 in the direction of approaching each other. When the two fixing blocks 5043 slide to abut against the front and rear sides of the adjustment rod 306 and are respectively located in the corresponding slots 12, the pressure on the pressing block 5085 is released. Under the restoring force of the restoring spring 5093, the connecting plate 5094 and the second toothed track 5096 are driven to move along the U-shaped through slot 507 and the movable slot 5091 away from the pressing block 5085, so that the second toothed track 5096 and the first toothed track 5095 are re-engaged and fixed, thereby limiting the push rod 505 and further fixing the adjusting rod 306 by the fixing blocks 5043. This prevents the episiotomy angle from changing after it is adjusted. Then, the episiotomy is performed by the blade of the episiotomy shears 1.

[0030] In this embodiment, the perineum fixation mechanism 6 includes a sealing cylinder 601, a fourth piston plate 602, a third pulling rod 603, a fixing plate 604, a compression spring 605, a fourth accommodating chamber 606, and a pushing mechanism 607. The sealing cylinder 601 is provided on the rear side of the auxiliary rod 305 near the movable end. The fourth accommodating chamber 606 is provided in communication with the interior of the adjusting rod 306 and the auxiliary rod 305, and the fourth accommodating chamber 606 is in communication with the sealing cylinder 601. A fourth piston plate 602 is sealingly and slidably disposed within the sealing cylinder 601. One end of a third pull rod 603 is connected to the fourth piston plate 602, while the other end passes through the sealing cylinder 601 and extends to the outside of the sealing cylinder 601. A fixing plate 604 is vertically connected to the bottom of the third pull rod 603. One end of a compression spring 605 is connected to the fourth piston plate 602, while the other end is connected to the inner wall of the end face of the sealing cylinder 601 near the auxiliary rod 305. A pushing mechanism 607 is disposed within the fourth accommodating chamber 606. When one blade of the episiotomy shears 1 is inserted into the vaginal opening, the fixing plate 604 simultaneously extends into the inner side of the vaginal opening.

[0031] In this embodiment, the pushing mechanism 607 includes a fifth piston plate 6071, a fixed plate 6072, a sixth piston plate 6073, a mounting sleeve 6074 and a telescopic rod 6075. The fixed plate 6072 is horizontally arranged inside the fourth accommodating chamber 606, and the fixed plate 6072 is located above the sealing cylinder 601. The fifth piston plate 6071 and the sixth piston plate 6073 are respectively sealed and slidably connected to the inner wall of the fourth accommodating chamber 606. The fifth piston plate 6071 and the sixth piston plate 6073 are respectively located on the fixed plate 60 Above and below the fourth accommodating chamber 606, the bottom of the mounting sleeve 6074 is connected to the bottom inner wall of the fourth accommodating chamber 606. One end of the telescopic rod 6075 is sleeved with the mounting sleeve 6074. Specifically, the telescopic rod 6075 can slide along the mounting sleeve 6074 under the action of an external force. The other end of the telescopic rod 6075 passes through the sixth piston plate 6073 and the fixed plate 6072 and is connected to the fifth piston plate 6071. In the specific design, the telescopic rod 6075 is in a sealed sliding connection with the fixed plate 6072 and is fixedly connected to the sixth piston plate 6073. In this embodiment, when the fixed plate 604 is not in the lightly clamped perineum state, the area of the fourth accommodating chamber 606 to the right of the fifth piston plate 6071 is filled with fluid. The area of the fourth accommodating chamber 606 between the fixed plate 6072 and the sixth piston plate 6073 and the area in the sealing cylinder 601 that connects the fourth piston plate 602, the fixed plate 6072, and the sixth piston plate 6073 is filled with fluid.

[0032] When the push rod 505 is pushed upward, the push rod 505 moves upward, driving the connecting block 5041 to move upward. In the process of fixing the adjusting rod 306 through the two fixing blocks 5043, the connecting rod 501 moves upward synchronously through the first through hole 13, and the other end of the connecting rod 501 gradually squeezes the bottom of the adjusting rod 306 upward, so that the fluid in the fourth accommodating chamber 606 is squeezed to the left. Under the driving force of the fluid, the fifth piston plate 6071 is driven to move downward, so that the telescopic rod 6075 moves downward along the fixing plate 6072 and the mounting sleeve 6074, and then drives the sixth piston plate 6073 to move downward, so that the fluid forms a negative pressure, driving the fourth piston plate 602 to move toward the fourth accommodating chamber 606. At this time, the compression spring 605 is compressed, and then drives the third pulling rod 603 and the fixing plate 604 to move toward the auxiliary rod 305. The fixing plate 604 and the auxiliary rod 305 are used to lightly clamp and fix the perineum, ensuring stability during the episiotomy process.

[0033] When a patient needs an episiotomy during childbirth, the direction of the episiotomy shears 1 is first adjusted so that the first positioning rod 402 and the second positioning rod 403 are in the same straight line with the perineal joint line, that is, in the middle position. Then, one side blade of the episiotomy shears 1 is inserted from the vaginal opening, and then fixed to the upper and lower skin of the patient's perineum through the first fixing member 404 and the second fixing member 405 respectively, to achieve the fixation of the first positioning rod 402 and the second positioning rod 403. Then, the handle of the episiotomy shears 1 is turned downward so that the blade rotates along the vaginal opening. At this time, the rotating rod 304 rotates synchronously, driving the adjusting rod 306 to rotate synchronously along the angle fixing mechanism 5. When the doctor observes that the angle marked on the adjusting rod 306 meets the requirements of the episiotomy When needed, stop turning the handle of the episiotomy shears 1, then keep the handle of the episiotomy shears 1 still with one hand, and press the pressing block 5085 backward with the other hand, driving the pressing rod 5084 to move backward, thereby driving the first piston plate 508 to move backward. At this time, the fluid moves backward synchronously with the first piston plate 508. Since the first accommodating chamber 9, the second accommodating chamber 10 and the third accommodating chamber 11 are interconnected, the fluid in the second accommodating chamber 10 and the third accommodating chamber 11 also flows along the channel 5088 to the first accommodating chamber 9, forming a negative pressure inside the second accommodating chamber 10 and the third accommodating chamber 11, thereby driving the second piston plate 5082 and the third piston plate 5083 to move toward the part close to the channel 5088, thereby driving the first pulling chamber 5082 and the third piston plate 5083 to move toward the part close to the channel 5088, thereby driving the first pulling chamber 5082 and the third piston plate 5083 to move toward the part close to the channel 5088, thereby driving the first pulling chamber 5082 and the third piston plate 5083 to move backward. The movable rod 5086 and the second pulling rod 5087 move forward, thereby driving the connecting plate 5094 and the second toothed track 5096 to move along the U-shaped through groove 507 and the moving groove 5091 toward the direction of the pressing block 5085. At this time, the restoring spring 5093 is compressed, causing the second toothed track 5096 and the first toothed track 5095 to separate from each other, releasing the limit fixation, and then pushing the push rod 505 upward. The push rod 505 moves upward, driving the connecting block 5041 to move upward. At this time, the two hinged rods 5042 slide downward along the corresponding first sliding groove 5044 respectively, driving the other ends of the two hinged rods 5042 to rotate along the hinged parts with the corresponding mounting through holes 5046 toward the direction of approaching each other, thereby When the two fixing blocks 5043 slide along the corresponding second sliding grooves 5045 toward each other, and when the two fixing blocks 5043 slide to the front and rear sides of the adjusting rod 306 and the two fixing blocks 5043 are respectively located in the corresponding slots 12, the pressure on the pressing block 5085 is removed. Under the action of the restoring force of the restoring spring 5093, the connecting plate 5094 and the second toothed track 5096 are driven to move along the U-shaped through groove 507 and the movable groove 5091 toward the direction away from the pressing block 5085, so that the second toothed track 5096 and the first toothed track 5095 are re-engaged, thereby achieving the limited fixation of the push rod 505, and then achieving the fixation of the adjusting rod 306 by the fixing block 5043;When the push rod 505 is pushed upward, the push rod 505 is driven to move upward, and the connecting block 5041 is driven to move upward. In the process of fixing the adjustment rod 306 through the two fixing blocks 5043, the connecting rod 501 passes through the first through hole 13 and moves upward synchronously. The other end of the connecting rod 501 gradually presses the bottom of the adjustment rod 306 upward, so that the fluid in the fourth accommodating chamber 606 is squeezed to the left. Under the driving force of the fluid, the fifth piston plate 6071 is driven to move downward, so that the telescopic rod 607 5 moves downward along the fixing plate 6072 and the mounting sleeve 6074, thereby driving the sixth piston plate 6073 downward, causing the fluid to form a negative pressure, driving the fourth piston plate 602 to move toward the fourth accommodating chamber 606. At this time, the compression spring 605 is compressed, thereby driving the third pull rod 603 and the fixing plate 604 to move toward the auxiliary rod 305. The fixing plate 604 and the auxiliary rod 305 are used to gently clamp and fix the perineum; then, the episiotomy is performed using the blade of the episiotomy shears 1.

[0034] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A perineal episiotomy device, comprising a perineal episiotomy scissors (1), characterized in that: A connecting sleeve (2) is provided on the outer side of the rotating shaft of the episiotomy scissors (1), and both ends of the rotating shaft of the episiotomy scissors (1) are respectively connected to the inner side surface of the connecting sleeve (2), and an angle adjustment and measurement mechanism (3) for adjusting and measuring the perineal shearing angle is provided on the outer side surface of the connecting sleeve (2); The angle adjustment and measurement mechanism (3) is provided with a positioning mechanism (4) for positioning the position of the perineum joint line, the positioning mechanism (4) is provided with an angle fixing mechanism (5), the angle fixing mechanism (5) is slidably connected to the angle adjustment and measurement mechanism (3), and the angle adjustment and measurement mechanism (3) is also provided with a perineum fixing mechanism (6) for clamping and fixing the perineum, and the perineum fixing mechanism (6) is connected to the angle fixing mechanism (5).

2. The episiotomy device according to claim 1, characterized in that: The angle adjustment measuring mechanism (3) comprises a connecting rod (301), a connecting ring (302), a connecting shaft (303), a rotating rod (304), an auxiliary rod (305) and an adjusting rod (306), wherein the connecting rod (301) and the connecting shaft (303) are respectively arranged vertically on the outer surface of the connecting sleeve (2), and the connecting ring (302) is arranged on the connecting shaft (303); The rotating rod (304) is connected to the outer side surface of the connecting ring (302), and the rotating rod (304) is connected to the movable end of the connecting rod (301). The rotating rod (304) and the blade of the episiotomy shears (1) are located in the same plane. The adjusting rod (306) is cross-arranged on the rotating rod (304). One end of the adjusting rod (306) is connected to the auxiliary rod (305), and the other end is slidably connected to the angle fixing mechanism (5). The positioning mechanism (4) is arranged on the connecting shaft (303).

3. The episiotomy device according to claim 2, characterized in that: The positioning mechanism (4) comprises a rotating ring (401), a first positioning rod (402), a second positioning rod (403), a first fixing member (404) and a second fixing member (405); the rotating ring (401) is rotatably connected to the connecting shaft (303); one end of the first positioning rod (402) and the second positioning rod (403) are respectively connected to the top and bottom of the outer side surface of the rotating ring (401); the first fixing member (404) and the second fixing member (405) are respectively connected to the rear side of the other end of the first positioning rod (402) and the second positioning rod (403); and the angle fixing mechanism (5) is arranged on the second positioning rod (403).

4. The episiotomy device according to claim 3, characterized in that: The angle fixing mechanism (5) comprises a locking mechanism, a mounting seat (502), a support block (503), an adjustment fixing unit (504) and a linkage rod (501); the mounting seat (502) is arranged on the front side of the second positioning rod (403); an adjustment hole (8) is provided on the mounting seat (502); the adjustment rod (306) is slidably connected to the adjustment hole (8); a sliding groove (7) is provided on the second positioning rod (403); the sliding groove (7) is located below the mounting seat (502); and the support block (503) is transversely arranged inside the sliding groove (7); The adjusting and fixing unit (504) is slidably connected to the sliding groove (7), and the adjusting and fixing unit (504) passes through the support block (503) to fix the adjusting rod (306). One end of the connecting rod (501) is connected to the adjusting and fixing unit (504), and the other end passes through the support block (503) and the mounting seat (502) and extends to the inside of the adjusting hole (8). The other end of the connecting rod (501) is in contact with the bottom of the adjusting rod (306). The locking mechanism is provided on the second positioning rod (403), and the locking mechanism is connected to the bottom of the adjusting and fixing unit (504).

5. The episiotomy device according to claim 4, characterized in that: The locking mechanism comprises a push rod (505), a limiting groove (506), a U-shaped through groove (507), a power mechanism (508) and a locking unit (509); the top of the push rod (505) is connected to the bottom of the adjustment and fixing unit (504); the limiting groove (506) is provided on the front side of the second positioning rod (403); the top of the limiting groove (506) is connected to the bottom of the sliding through groove (7); the U-shaped through groove (507) is provided at the bottom of the rear side of the push rod (505); the power mechanism (508) is arranged inside the push rod (505); the locking unit (509) is respectively arranged inside the limiting groove (506) and the U-shaped through groove (507); and the locking unit (509) is connected to the power mechanism (508).

6. The episiotomy device according to claim 5, characterized in that: The locking unit (509) comprises a movable groove (5091), an installation groove (5092), a restoring spring (5093), a connecting plate (5094), a first toothed track (5095) and a second toothed track (5096), wherein the first gear track (5095) is arranged on the groove bottom of the limiting groove (506), the movable groove (5091) is provided on the groove bottom of the U-shaped through groove (507), the installation groove (5092) is provided on the groove bottom of the movable groove (5091), and the connecting plate (5094) is movably provided. The second toothed track (5096) is arranged inside the movable groove (5091), the second toothed track (5096) is arranged on the rear side surface of the connecting plate (5094), the second toothed track (5096) is engaged with the first toothed track (5095), the return spring (5093) is arranged inside the mounting groove (5092), and the two ends of the return spring (5093) are respectively connected to the front side surface of the connecting plate (5094) and the bottom of the mounting groove (5092), and the connecting plate (5094) is connected to the power mechanism (508).

7. The episiotomy device according to claim 5, characterized in that: The power mechanism (508) comprises a first accommodating chamber (9), a second accommodating chamber (10), a third accommodating chamber (11), a first piston plate (5081), a second piston plate (5082), a third piston plate (5083), a pressing rod (5084), a pressing block (5085), a first pulling rod (5086), a second pulling rod (5087) and a channel (5088); the first accommodating chamber (9), the second accommodating chamber (10), the third accommodating chamber (11) and the channel (5088) are all opened inside the pushing rod (505), and the channel (5088) is respectively connected to the first accommodating chamber (9), the second accommodating chamber (10) and the third accommodating chamber (11); The first piston plate (5081), the second piston plate (5082), and the third piston plate (5083) are sealed and slidably arranged inside the first accommodating chamber (9), the second accommodating chamber (10), and the third accommodating chamber (11), respectively. One end of the pressing rod (5084) is connected to the first piston plate (5081), and the other end passes through the front side of the push rod (505) and extends to the outside of the push rod (505). The pressing block (5085) is arranged on the other end of the pressing rod (5084). One end of the first pulling rod (5086) and the second pulling rod (5087) are connected to the second piston plate (5082) and the third piston plate (5083), respectively, and the other ends of the first pulling rod (5086) and the second pulling rod (5087) pass through the second accommodating chamber (10) and the third accommodating chamber (11), and are respectively connected to the locking unit (509).

8. The episiotomy device according to claim 4, characterized in that: The adjusting and fixing unit (504) comprises a connecting block (5041), two hinged rods (5042), two fixing blocks (5043), two first sliding grooves (5044), two second sliding grooves (5045) and two mounting through holes (5046). The connecting block (5041) is a triangular structure. The bottom of the connecting block (5041) is connected to the top of the locking mechanism. The top of the connecting block (5041) is connected to the bottom of the linkage rod (501). The two first sliding grooves (5044) are symmetrically arranged on two inclined side surfaces of the connecting block (5041). The two mounting through holes (5046) are symmetrically arranged on the supporting block (503). The two second slide grooves (5045) are symmetrically opened on the front side and the rear side of the mounting seat (502), and the two second slide grooves (5045) are both connected to the adjustment hole (8). One end of the two hinged rods (5042) is slidably connected to the corresponding first slide grooves (5044), and the other ends of the two hinged rods (5042) pass through the corresponding mounting through holes (5046). The two fixed blocks (5043) are hinged to the other ends of the corresponding hinged rods (5042), and the two fixed blocks (5043) are slidably set in the corresponding second slide grooves (5045). The two fixed blocks (5043) fix the adjustment rod (306), and the hinged rods (5042) are rotatably connected to the inner walls of the corresponding mounting through holes (5046).

9. The episiotomy device according to claim 2, characterized in that: The perineum fixing mechanism (6) comprises a sealing cylinder (601), a fourth piston plate (602), a third pulling rod (603), a fixing plate (604), a compression spring (605), a fourth accommodating chamber (606) and a pushing mechanism (607), wherein the sealing cylinder (601) is arranged on the rear side surface of the auxiliary rod (305) near the movable end, and the fourth accommodating chamber (606) is arranged in communication with the interior of the adjusting rod (306) and the auxiliary rod (305), and the fourth accommodating chamber (606) is in communication with the sealing cylinder (601); The fourth piston plate (602) is sealingly and slidingly arranged inside the sealing cylinder (601), one end of the third pull rod (603) is connected to the fourth piston plate (602), and the other end passes through the sealing cylinder (601) and extends to the outside of the sealing cylinder (601), the fixing plate (604) is vertically connected to the bottom of the third pull rod (603), one end of the compression spring (605) is connected to the fourth piston plate (602), and the other end is connected to the inner wall of the end face of the sealing cylinder (601) close to the auxiliary rod (305), and the pushing mechanism (607) is arranged inside the fourth accommodating chamber (606).

10. The episiotomy device according to claim 9, characterized in that: The pushing mechanism (607) includes a fifth piston plate (6071), a fixed plate (6072), a sixth piston plate (6073), a mounting sleeve (6074) and a telescopic rod (6075). The fixed plate (6072) is transversely arranged inside the fourth accommodating chamber (606), and the fixed plate (6072) is located above the sealing cylinder (601). The fifth piston plate (6071) and the sixth piston plate (6073) are respectively connected to the inner wall of the fourth accommodating chamber (606) in a sealing and sliding manner. The fifth piston plate (6071) and the sixth piston plate (6073) are respectively located above and below the fixed plate (6072). The bottom of the mounting sleeve (6074) is connected to the bottom inner wall of the fourth accommodating chamber (606). One end of the telescopic rod (6075) is sleeved with the mounting sleeve (6074), and the other end passes through the sixth piston plate (6073) and the fixed plate (6072) and is connected to the fifth piston plate (6071).

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