A uterine hemostatic device

Abstract

This invention discloses a uterine hemostatic device, aiming to provide a uterine hemostatic device that improves human comfort. It includes a vacuum tube, with a vacuum connector at one end and a sealing seat at the other end. One end of the sealing seat is connected to the vacuum tube, and the other end of the sealing seat has a flexible ring tube. The interior of the flexible ring tube is connected to the interior of the vacuum tube via a connection between its end and the sealing seat. Several suction holes are provided on the side wall of the flexible ring tube. A pull rod is provided inside the side wall of the vacuum tube and is slidably connected to the vacuum tube. An adjuster is provided on the vacuum tube and is slidably connected to the vacuum tube. One end of the pull rod is connected to the adjuster, and the other end of the pull rod passes through the sealing seat and is fixedly connected to the other end of the flexible ring tube. The beneficial effects of this invention are: it helps reduce the interaction force between the flexible ring tube and the vaginal opening, thereby improving human comfort, reducing patient pain, and improving operational convenience.

Description

Technical Field

[0001] This invention relates to the technical field of postpartum hemostatic devices, and in particular to a uterine hemostatic device. Background Technology

[0002] Postpartum hemorrhage, defined as excessive blood loss after childbirth, is a leading cause of maternal death worldwide, claiming the lives of more than 125,000 mothers each year. Uncontrolled postpartum hemorrhage may require multiple blood transfusions and, in severe cases, can lead to a total hysterectomy or death. Therefore, it is desirable to control postpartum hemorrhage as soon as it begins, if possible. In approximately 80% of cases, postpartum hemorrhage is caused by uterine atony, which is the inability of the uterus to contract after delivery. Risk factors for uterine atony include prolonged labor, preeclampsia, and multiparity. Therefore, a system is needed that can rapidly induce uterine contractions, thereby reducing or completely stopping uterine bleeding.

[0003] Based on this, PCT international patent application number 201980090205.4 discloses a postpartum uterine hemorrhage device, comprising: an elongated body configured to be connected to a vacuum source; a flexible annular portion connected to the elongated body and configured to be placed in the uterus, the flexible annular portion including a plurality of holes on its inner circumference, wherein when the elongated body is inserted into the uterus, activation of the vacuum source is configured to draw a vacuum through the plurality of holes to contract the uterus; a protective body folded around the outer circumference of the annular portion and having an edge extending radially inward relative to the distal portion of the flexible annular portion, the protective body being configured to prevent tissue from blocking the plurality of holes when a vacuum is applied; and an expandable seal connected to the elongated body and configured to seal the uterus.

[0004] As can be seen from the above patent, when the flexible ring part is inserted into the uterus, the deformation of the flexible ring part is mainly controlled by the vaginal opening. According to the principle that forces are reciprocal, the human body will feel a certain degree of distending pain, which is not comfortable and also not conducive to operation. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of existing uterine bleeding devices in terms of poor user comfort during use, and provides a uterine hemostatic device that improves user comfort.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A uterine hemostatic device includes a vacuum tube, one end of which is provided with a vacuum connector, and the other end of which is provided with a sealing seat. One end of the sealing seat is connected to the vacuum tube, and the other end of the sealing seat is provided with a flexible ring tube. The interior of the flexible ring tube is connected to the interior of the vacuum tube through a connection between one end of the ring tube and the sealing seat. The side wall of the flexible ring tube is provided with a plurality of suction holes. A pull rod is provided inside the side wall of the vacuum tube and is slidably connected to the vacuum tube. An adjuster is provided on the vacuum tube and is slidably connected to the vacuum tube. One end of the pull rod is connected to the adjuster, and the other end of the pull rod passes through the sealing seat and is fixedly connected to the other end of the flexible ring tube.

[0008] One end of the vacuum tube is equipped with a vacuum connector, and the other end of the vacuum tube is equipped with a sealing seat. One end of the sealing seat is connected to the vacuum tube, and the other end of the sealing seat is equipped with a flexible ring tube. The interior of the flexible ring tube is connected to the interior of the vacuum tube after being connected to the sealing seat at one end. Several suction holes are provided on the side wall of the flexible ring tube. A pull rod is provided inside the side wall of the vacuum tube. The pull rod is slidably connected to the vacuum tube. An adjuster is provided on the vacuum tube. The adjuster is slidably connected to the vacuum tube. One end of the pull rod is connected to the adjuster, and the other end of the pull rod passes through the sealing seat and is fixedly connected to the other end of the flexible ring tube. The vacuum connector connects to the vacuum source. Before insertion into the human body, the user slides the lever forward using the adjuster, flattening the flexible ring tube. It is then inserted into the uterus through the vaginal opening, which helps reduce the interaction force between the tube and the vaginal opening, thus improving comfort, reducing patient pain, and enhancing ease of operation. After the flexible ring tube enters the uterus, the sealing seat seals the cervix, the vacuum source is activated, and the vacuum tube and several suction holes sequentially draw a vacuum into the uterus to contract it, thereby reducing or completely stopping uterine bleeding.

[0009] Preferably, one end of the vacuum tube is fixedly connected to the vacuum connector and has a sliding groove. The sliding groove is located on the outer wall of the vacuum tube, and the length direction of the sliding groove is parallel to the length direction of the vacuum tube. The adjuster includes a push block and a decorative wheel. The push block is tubular and sleeved on the outer wall of the vacuum tube. The sliding groove is located inside the push block. The decorative wheel is sleeved on the outer wall of the push block and threadedly connected to the push block. One end of the pull rod is located inside the sliding groove and has a slider. The slider is fixedly connected to the end of the pull rod and slidably connected to the sliding groove. A locking block is fixed on the slider. The push block has a locking slot that matches the locking block. The slider is connected to the push block through the locking block and the locking slot. Because the lace wheel and the push block are threaded together, when the user adjusts the deformation of the flexible ring tube using the adjuster, the lace wheel is rotated, and the push block slides along the length of the vacuum tube under the action of the lace wheel's rotation. This causes the slider to slide along the length of the groove, thereby driving the pull rod to slide. Finally, under the extension and retraction of the pull rod, the flexible ring tube undergoes corresponding deformation. The operation is simple. At the same time, the threaded connection between the lace wheel and the push block is beneficial for limiting the movement of the pull rod after it slides, so that the flexible ring tube can maintain its current state after deformation, improving the convenience of operation.

[0010] Preferably, the outer wall of the vacuum tube is provided with a limiting block that contacts the end of the pusher. The limiting block is fixedly connected to the vacuum tube. One end of the lace wheel is close to the vacuum connector, and the other end is away from the vacuum connector. The end of the lace wheel near the vacuum connector has a stepped surface. The limiting block is located between the slide groove and the stepped surface, and the stepped surface is limited between the limiting block and the vacuum connector. When the pusher returns to its initial position and the flexible ring tube returns to its natural state, the limiting block provides a certain limiting effect on the pusher to prevent the pusher from sliding excessively and causing the flexible ring tube to concave under the action of the pull rod, resulting in tearing deformation of the side wall of the flexible ring tube, which helps to extend its service life. At the same time, the stepped surface is limited between the limiting block and the vacuum connector, which is conducive to the lace wheel only rotating and not sliding up and down, thus facilitating the sliding of the pusher through the threaded connection under the rotation of the lace wheel.

[0011] Preferably, the thickness of the slider is the same as the depth of the groove, one side of the slider contacts the bottom of the groove, and the corresponding other side of the slider is located inside the opening end of the groove and on the same arc surface as the outer wall of the vacuum tube. The locking block is fixedly connected to the side of the slider located inside the opening end of the groove. This design facilitates the fit between the push block and the outer wall of the vacuum tube, allowing it to slide up and down along the wall of the vacuum tube.

[0012] Preferably, the flexible ring tube is provided with a top block, which is fixedly connected to the inner circumferential surface of the flexible ring tube. The other end of the pull rod passes through the sealing seat and is fixedly connected to the top block. Because the diameter of the pull rod is small, the pull rod acts on the flexible ring tube through the top block, which helps to protect the flexible ring tube when the pull rod slides, prevents the flexible ring tube from being punctured, and helps to extend its service life.

[0013] Preferably, several suction holes are evenly distributed along the circumference of the flexible ring tube and located on the bottom side of the flexible ring tube. The suction holes face the inner diameter of the flexible ring tube. Between each pair of adjacent suction holes, there is a skirt formed by the outer circumferential surface of the flexible ring tube extending radially inward. Between each pair of adjacent skirts, a flared opening is formed that communicates with the suction hole. The suction holes are located on the bottom side of the flexible ring tube to facilitate contact between the suction holes and the tissue surface. At the same time, it facilitates the formation of a flared opening between each pair of adjacent skirts that communicates with the suction hole, which plays a good guiding role when suctioning contaminated blood from the tissue surface, improving the efficiency of contaminated blood suction, and also helps to protect the suction holes from being blocked by tissue and blood clots.

[0014] Preferably, the sealing seat has a filling cavity, the side wall of the vacuum connector has a port with a valve, the side wall of the vacuum tube has a conveying channel, the port is connected to the filling cavity through the conveying channel, the vacuum tube has a central channel parallel to the conveying channel, the central channel is isolated from the conveying channel, the pull rod is located on one side of the central channel, the conveying channel is located on the other side of the central channel, one end of the vacuum connector has a vacuum connection end, the vacuum connection end is connected to the interior of the flexible ring tube through the central channel, and the other end of the vacuum connector is fixedly connected to the vacuum tube. After the vacuum source is connected to the vacuum connector through the vacuum connection end, it sequentially draws a vacuum into the uterus through the central channel and several suction holes to contract the uterus. When the sealing seat needs to seal the cervix, the user inserts a syringe into the valved port and injects sterile liquid into the filling cavity through the delivery channel, causing the sealing seat to expand and thus seal the cervix. Conversely, after the sterile liquid in the filling cavity is drawn out by the syringe, the sealing seat retracts and returns to its original shape, making it easy to remove the hemostat from the body while avoiding injury to the body and improving the comfort of the operation.

[0015] Preferably, the sealing seat includes a disc-shaped sealing body and a sleeve. The sleeve passes through the center of the disc-shaped sealing body, and its two ends are located on the left and right sides of the disc-shaped sealing body, respectively. The filling cavity is located inside the disc-shaped sealing body, and the filling cavity forms an annular structure with the sleeve as the center. The sleeve is fixedly connected to the disc-shaped sealing body. The side wall of the sleeve is provided with a through hole one communicating with the interior of the filling cavity. A connecting pipe is provided inside one end of the sleeve. The connecting pipe is provided with a connecting channel one communicating with the central channel and a connecting channel two communicating with the conveying channel. The end of the connecting tube is fixedly connected to the end of the vacuum tube. The other end of the connecting tube is fixedly connected to the inside of the sleeve and has a second through hole corresponding to the first through hole. The second through hole is located on the side wall of the connecting tube and communicates with the second connecting channel. The other end of the connecting tube is connected to a three-way tube. One channel of the three-way tube is connected to the connecting tube and communicates with the central channel. The other two channels of the three-way tube are respectively connected to the inside of the flexible ring tube through the left and right ports of the open end of the flexible ring tube. The other end of the pull rod passes through the side wall of the connecting tube and is fixedly connected to the other end of the flexible ring tube. Sterile liquid is sequentially transported into the filling cavity through the delivery channel, the second connecting channel, the second through hole, and the first through hole. The filling cavity forms a ring structure with the sleeve as the center, which facilitates the sealing of the entire cervix after the filling cavity is filled and expanded, thus improving the sealing effect. The central channel, the first connecting channel, the three-way tube, the inside of the flexible ring tube, and several suction holes constitute a vacuum suction channel, which is isolated from the channel through which the sterile liquid flows and does not interfere with each other.

[0016] Preferably, one end of the sleeve is connected to the vacuum tube via a connecting pipe, and a protective sleeve is fitted onto the other end of the sleeve. The sleeve is located inside the protective sleeve, and the disc-shaped sealing body is fixedly connected to the outer wall of the open end of the flexible ring tube through the protective sleeve, forming a single unit. The protective sleeve helps improve the sealing performance of the connection between the connecting pipe and the flexible ring tube via the tee pipe, thereby improving the vacuuming effect.

[0017] Preferably, the flexible annular tube is flipped around its open end from its bottom side to its top side, forming an angle of 150° to 170° with the vacuum tube. This angle is adapted to the operating angle, which facilitates operation and helps to reduce the patient's pain.

[0018] The beneficial effects of this invention are: it helps reduce the interaction force between the flexible ring tube and the vaginal opening, thereby improving human comfort, reducing patient pain, and improving the convenience of operation; it is simple to operate; the threaded connection between the lace wheel and the push block facilitates the limiting of the sliding of the pull rod, allowing the flexible ring tube to maintain its current state after deformation, thus improving the convenience of operation; it helps extend the service life; it improves the suction efficiency of the suction hole for contaminated blood, while also helping to protect the suction hole from being blocked by tissue and blood clots. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 yes Figure 1 Exploded view of the regulator when it is not adjusted;

[0022] Figure 4 This is the front view of the present invention;

[0023] Figure 5 yes Figure 4 Sectional view of CC;

[0024] Figure 6 yes Figure 5 Enlarged view of the structure at point B;

[0025] Figure 7 yes Figure 5 Enlarged view of the structure at point D;

[0026] Figure 8 yes Figure 1 Exploded view after regulator adjustment;

[0027] Figure 9 yes Figure 5 A schematic diagram of the regulator's adjusted structure;

[0028] Figure 10 yes Figure 9 Enlarged view of the structure at point E in the middle.

[0029] In the diagram: 1. Vacuum tube, 2. Vacuum connector, 3. Sealing seat, 4. Flexible ring tube, 5. Suction hole, 6. Pull rod, 7. Adjuster, 8. Slide groove, 9. Push block, 10. Lace-up wheel, 11. Slider, 12. Locking block, 13. Bayonet, 14. Limiting block, 15. Stepped surface, 16. Top block, 17. Skirt, 18. Trumpet mouth, 19. Filling cavity, 20. Port, 21. Conveying channel, 22. Central channel, 23. Vacuum connection end, 24. Disc-shaped sealing body, 25. Sleeve, 26. Through hole one, 27. Connecting pipe, 28. Connecting channel one, 29. Connecting channel two, 30. Through hole two, 31. T-shaped pipe, 32. Protective sleeve. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 , Figure 2 and Figure 4In the embodiments described, a uterine hemostatic device includes a vacuum tube 1, a vacuum connector 2 at one end of the vacuum tube 1, and a sealing seat 3 at the other end of the vacuum tube 1. One end of the sealing seat 3 is connected to the vacuum tube 1, and the other end of the sealing seat 3 is provided with a flexible ring tube 4. The interior of the flexible ring tube 4 is connected to the interior of the vacuum tube 1 through a connection between one end of the flexible ring tube 4 and the sealing seat 3. Several suction holes 5 are provided on the side wall of the flexible ring tube 4. A pull rod 6 is provided inside the side wall of the vacuum tube 1 and is slidably connected to the vacuum tube 1. An adjuster 7 is provided on the vacuum tube 1 and is slidably connected to the vacuum tube 1. One end of the pull rod 6 is connected to the adjuster 7, and the other end of the pull rod 6 passes through the sealing seat 3 and is fixedly connected to the other end of the flexible ring tube 4.

[0032] like Figure 3 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, one end of the vacuum tube 1 is fixedly connected to the vacuum connector 2 and is provided with a sliding groove 8. The sliding groove 8 is located on the outer wall of the vacuum tube 1, and the length direction of the sliding groove 8 is parallel to the length direction of the vacuum tube 1. The adjuster 7 includes a push block 9 and a lace wheel 10. The push block 9 is tubular in shape and is sleeved on the outer wall of the vacuum tube 1. The sliding groove 8 is located inside the push block 9. The lace wheel 10 is sleeved on the outer wall of the push block 9 and is threadedly connected to the push block 9. One end of the pull rod 6 is located inside the sliding groove 8 and is provided with a slider 11. The slider 11 is fixedly connected to the end of the pull rod 6 and is slidably connected to the sliding groove 8. A locking block 12 is fixed on the slider 11. The push block 9 is provided with a locking slot 13 that matches the locking block 12. The slider 11 is connected to the push block 9 through the matching of the locking block 12 and the locking slot 13.

[0033] like Figure 3 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, a limiting block 14 is provided on the outer wall of the vacuum tube 1, which is in contact with the end of the push block 9. The limiting block 14 is fixedly connected to the vacuum tube 1. One end of the lace wheel 10 is close to the vacuum connector 2, and the other end of the lace wheel 10 is far away from the vacuum connector 2. A stepped surface 15 is provided at the end of the lace wheel 10 that is close to the vacuum connector 2. The limiting block 14 is located between the slide groove 8 and the stepped surface 15. The stepped surface 15 is limited between the limiting block 14 and the vacuum connector 2.

[0034] like Figure 6 and Figure 10As shown, the thickness of slider 11 is the same as the depth of groove 8. One side of slider 11 is in contact with the bottom of groove 8, and the other side of slider 11 is located inside the opening end of groove 8 and is on the same arc surface as the outer wall of vacuum tube 1. The locking block 12 is fixedly connected to the side of slider 11 located inside the opening end of groove 8.

[0035] like Figure 2 As shown, a top block 16 is provided on the flexible ring tube 4. The top block 16 is fixedly connected to the inner circumferential surface of the flexible ring tube 4. The other end of the pull rod 6 passes through the sealing seat 3 and is fixedly connected to the top block 16.

[0036] like Figure 1 and Figure 2 As shown, a number of suction holes 5 are evenly distributed along the circumference of the flexible ring tube 4 and located on the bottom side of the flexible ring tube 4. The suction holes 5 face the inner diameter of the flexible ring tube 4. Between each two adjacent suction holes 5, there is a skirt 17 formed by the outer circumferential surface of the flexible ring tube 4 extending radially inward. Between each two adjacent skirts 17, a flared mouth 18 is formed that communicates with the suction holes 5.

[0037] like Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the sealing seat 3 has a filling cavity 19, the side wall of the vacuum connector 2 has a port 20 with a valve, the side wall of the vacuum tube 1 has a conveying channel 21, the port 20 is connected to the filling cavity 19 through the conveying channel 21, the vacuum tube 1 has a central channel 22 parallel to the conveying channel 21, the central channel 22 is isolated from the conveying channel 21, the pull rod 6 is located on one side of the central channel 22, the conveying channel 21 is located on the other side of the central channel 22, one end of the vacuum connector 2 has a vacuum connection end 23, the vacuum connection end 23 is connected to the inside of the flexible ring tube 4 through the central channel 22, and the other end of the vacuum connector 2 is fixedly connected to the vacuum tube 1.

[0038] like Figure 3 and Figure 7As shown, the sealing seat 3 includes a disc-shaped sealing body 24 and a sleeve 25. The sleeve 25 passes through the center of the disc-shaped sealing body 24, and its two ends are located on the left and right sides of the disc-shaped sealing body 24, respectively. The filling cavity 19 is located inside the disc-shaped sealing body 24, and the filling cavity 19 forms an annular structure with the sleeve 25 as the center. The sleeve 25 is fixedly connected to the disc-shaped sealing body 24. The side wall of the sleeve 25 is provided with a through hole 26 communicating with the inside of the filling cavity 19. A connecting pipe 27 is provided inside one end of the sleeve 25. The connecting pipe 27 is provided with a connecting channel 28 communicating with the central channel 22 and a connecting channel 29 communicating with the conveying channel 21, respectively. One end of the connecting tube 27 is fixedly connected to the end of the vacuum tube 1. The other end of the connecting tube 27 is fixedly connected to the inside of the sleeve 25 and is provided with a second through hole 30 corresponding to the first through hole 26. The second through hole 30 is located on the side wall of the connecting tube 27 and is connected to the second connecting channel 29. The other end of the connecting tube 27 is connected to a three-way tube 31. One of the channels of the three-way tube 31 is connected to the connecting tube 27 and is connected to the central channel 22. The other two channels of the three-way tube 31 are respectively connected to the inside of the flexible ring tube 4 through the left and right ports 20 of the open end of the flexible ring tube 4. The other end of the pull rod 6 passes through the side wall of the connecting tube 27 and is fixedly connected to the other end of the flexible ring tube 4.

[0039] like Figure 3 and Figure 7 As shown, one end of the sleeve 25 is connected to the vacuum tube 1 through the connecting tube 27, and the other end of the sleeve 25 is fitted with a protective sleeve 32. The sleeve 25 is located inside the protective sleeve 32, and the disc-shaped sealing body 24 is fixedly connected to the outer wall of the open end of the flexible ring tube 4 through the protective sleeve 32 and forms an integral unit.

[0040] like Figure 1 , Figure 5 and Figure 9 As shown, the flexible ring tube 4 flips around its open end from its bottom side to its top side, forming an angle of 150° to 170° with the vacuum tube 1.

[0041] During operation, first connect the vacuum connector 2 to the vacuum source via the vacuum connection end 23. Before inserting the hemostat into the human body, the user rotates the lace wheel 10 in the forward direction, causing the push block 9 to slide along the length of the vacuum tube 1 towards the flexible ring tube 4 under the rotation of the lace wheel 10. This drives the pull rod 6 to slide forward synchronously, causing the flexible ring tube 4 to gradually flatten under the action of the pull rod 6. Then, the flattened flexible ring tube 4 is inserted into the uterus through the vaginal opening, which helps to reduce the interaction force between the tube and the vaginal opening, thereby improving the comfort of the human body. This reduces patient discomfort while improving ease of operation. After the flexible ring tube 4 enters the uterus, the user rotates the lace wheel 10 in the opposite direction to restore the roundness of the flexible ring tube 4, which facilitates better vacuuming of the uterine cavity. After inserting a syringe into the valved port 20, the user injects sterile liquid into the filling cavity 19 through the delivery channel 21, causing the sealing seat 3 to expand and seal the cervix. The vacuum source is activated, and the uterine cavity is vacuumed through the central channel 22 of the vacuum tube 1 and several suction holes 5 to contract the uterus, thereby reducing or completely stopping uterine bleeding.

[0042] In the above process, the suction hole 5 is located on the bottom side of the flexible ring tube 4, which facilitates contact with the tissue surface. At the same time, it facilitates the formation of a funnel-shaped opening 18 between each pair of adjacent skirts 17 that communicates with the suction hole 5. This provides a good guiding effect when the suction hole 5 suctions contaminated blood from the tissue surface, improves the suction efficiency of contaminated blood, and helps protect the suction hole 5 from being blocked by tissue and blood clots.

[0043] After the operation is completed, the user uses a syringe to draw out the sterile liquid in the filling cavity 19, causing the sealing seat 3 to retract and return to its original shape, thus releasing the seal of the cervix; then the user rotates the lace wheel 10 forward again, so that the flexible ring tube 4 gradually flattens under the action of the pull rod 6, so that the hemostat can be removed from the vaginal opening.

Claims

1. A uterine hemostatic device, characterized in that, The system includes a vacuum tube (1), one end of which is provided with a vacuum connector (2), and the other end of which is provided with a sealing seat (3). One end of the sealing seat (3) is connected to the vacuum tube (1), and the other end of the sealing seat (3) is provided with a flexible ring tube (4). The interior of the flexible ring tube (4) is connected to the interior of the vacuum tube (1) after being connected to the sealing seat (3) at one end. Several suction holes (5) are provided on the side wall of the flexible ring tube (4). A pull rod (6) is provided inside the side wall of the vacuum tube (1). The pull rod (6) is slidably connected to the vacuum tube (1). The vacuum tube (1) is provided with an adjustment mechanism. The regulator (7) is slidably connected to the vacuum tube (1). One end of the pull rod (6) is connected to the regulator (7), and the other end of the pull rod (6) passes through the sealing seat (3) and is fixedly connected to the other end of the flexible ring tube (4). One end of the vacuum tube (1) is fixedly connected to the vacuum connector (2) and is provided with a sliding groove (8). The sliding groove (8) is located on the outer wall of the vacuum tube (1), and the length direction of the sliding groove (8) is parallel to the length direction of the vacuum tube (1). The regulator (7) includes a push block (9) and a lace wheel (10). The push block (9) is tubular in shape and is sleeved on the vacuum tube (1). On the outer wall, the groove (8) is located inside the push block (9), the lace wheel (10) is sleeved on the outer wall of the push block (9) and threadedly connected to the push block (9), one end of the pull rod (6) is located inside the groove (8) and is provided with a slider (11), the slider (11) is fixedly connected to the end of the pull rod (6), the slider (11) is slidably connected to the groove (8), a locking block (12) is fixed on the slider (11), the push block (9) is provided with a locking slot (13) that matches the locking block (12), the slider (11) is connected to the push block (9) through the matching of the locking block (12) and the locking slot (13); the vacuum tube ( 1) A limiting block (14) is provided on the outer wall of the push block (9) and is in contact with the end of the push block (9). The limiting block (14) is fixedly connected to the vacuum tube (1). One end of the lace wheel (10) is close to the vacuum connector (2), and the other end of the lace wheel (10) is far away from the vacuum connector (2). The lace wheel (10) is provided with a stepped surface (15) at the end close to the vacuum connector (2). The limiting block (14) is located between the slide groove (8) and the stepped surface (15). The stepped surface (15) is limited between the limiting block (14) and the vacuum connector (2). The thickness of the slider (11) is the same as the depth of the slide groove (8).

2. The uterine hemostatic device according to claim 1, characterized in that, One side of the slider (11) is in contact with the bottom of the groove (8), and the other side of the slider (11) is located inside the opening end of the groove (8) and on the same arc surface as the outer wall of the vacuum tube (1). The locking block (12) is fixedly connected to the side of the slider (11) located inside the opening end of the groove (8).

3. A uterine hemostatic device according to claim 1, characterized in that, The flexible ring tube (4) is provided with a top block (16), which is fixedly connected to the inner circumferential surface of the flexible ring tube (4). The other end of the pull rod (6) passes through the sealing seat (3) and is fixedly connected to the top block (16).

4. A uterine hemostatic device according to claim 1, characterized in that, Several suction holes (5) are evenly distributed along the circumference of the flexible ring tube (4) and located on the bottom side of the flexible ring tube (4). The suction holes (5) face the inner diameter of the flexible ring tube (4). Between each two adjacent suction holes (5), there is a skirt (17) formed by the outer circumference of the flexible ring tube (4) extending radially inward. Between each two adjacent skirts (17), a flared mouth (18) is formed that communicates with the suction holes (5).

5. A uterine hemostatic device according to claim 1, characterized in that, The sealing seat (3) is provided with a filling cavity (19). The side wall of the vacuum connector (2) is provided with a port (20) with a valve. The side wall of the vacuum tube (1) is provided with a conveying channel (21). The port (20) is connected to the filling cavity (19) through the conveying channel (21). The vacuum tube (1) is provided with a central channel (22) that is parallel to the conveying channel (21). The central channel (22) is isolated from the conveying channel (21). The pull rod (6) is located on one side of the central channel (22). The conveying channel (21) is located on the other side of the central channel (22). One end of the vacuum connector (2) is provided with a vacuum connection end (23). The vacuum connection end (23) is connected to the interior of the flexible ring tube (4) through the central channel (22). The other end of the vacuum connector (2) is fixedly connected to the vacuum tube (1).

6. A uterine hemostatic device according to claim 5, characterized in that, The sealing seat (3) includes a disc-shaped sealing body (24) and a sleeve (25). The sleeve (25) passes through the center of the disc-shaped sealing body (24) and its two ends are located on the left and right sides of the disc-shaped sealing body (24). The filling cavity (19) is located inside the disc-shaped sealing body (24). The filling cavity (19) forms an annular structure with the sleeve (25) as the center. The sleeve (25) is fixedly connected to the disc-shaped sealing body (24). The side wall of the sleeve (25) is provided with a through hole (26) that communicates with the inside of the filling cavity (19). One end of the sleeve (25) is provided with a connecting pipe (27). The connecting pipe (27) is provided with a connecting channel (28) that communicates with the central channel (22) and a connecting channel (29) that communicates with the conveying channel (21). One end of the connecting tube (27) is fixedly connected to the end of the vacuum tube (1). The other end of the connecting tube (27) is fixedly connected to the inside of the sleeve (25) and is provided with a through hole two (30) corresponding to the through hole one (26). The through hole two (30) is located on the side wall of the connecting tube (27) and is connected to the connecting channel two (29). The other end of the connecting tube (27) is connected to a three-way tube (31). One of the channels of the three-way tube (31) is connected to the connecting tube (27) and is connected to the central channel (22). The other two channels of the three-way tube (31) are respectively connected to the inside of the flexible ring tube (4) through the left and right ports (20) of the open end of the flexible ring tube (4). The other end of the pull rod (6) passes through the side wall of the connecting tube (27) and is fixedly connected to the other end of the flexible ring tube (4).

7. A uterine hemostatic device according to claim 6, characterized in that, One end of the sleeve (25) is connected to the vacuum tube (1) through the connecting tube (27), and the other end of the sleeve (25) is fitted with a protective sleeve (32). The sleeve (25) is located inside the protective sleeve (32). The disc-shaped sealing body (24) is fixedly connected to the outer wall of the opening end of the flexible ring tube (4) through the protective sleeve (32) and forms an integral unit.

8. A uterine hemostatic device according to claim 1, characterized in that, The flexible ring tube (4) is flipped around its open end from its bottom side to its top side, forming an angle of 150°~170° with the vacuum tube (1).

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