Uterine cavity hemostasis device and using method thereof

Abstract

The invention discloses a uterine cavity hemostasis device and a using method thereof. The uterine cavity hemostasis device comprises a hemostasis balloon, a front top water bag and a catheter. The catheter sequentially penetrates through the front top water bag and the hemostatic balloon; the hemostasis balloon is movably arranged at the front end of the catheter, and the front water jacking bag jacks the bottom of the hemostasis balloon; a liquid injection pipe I and a liquid injection pipe II are arranged in the guide pipe; the liquid injection tube I is communicated with the hemostatic balloon; the liquid injection pipe II is communicated with the front top water bag; a balloon wall auxiliary jacking and pressing component is further arranged in the hemostasis balloon. The hemostasis balloon can enter the bottom of the uterus, the pressure on the uterine cavity wall is enhanced, hemostasis is helped, the hemostasis balloon can be prevented from being extruded out of the uterus, and the compression hemostasis effect on the lower section of the uterus is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and in particular relates to a uterine cavity hemostasis device and a method of using the same. Background Art

[0002] Giving birth means becoming a mother and holds great significance for women. However, childbirth is a complex and high-risk physiological process, accompanied by complications such as amniotic fluid embolism and postpartum hemorrhage that seriously threaten the life and health of the mother. Clinically, postpartum hemorrhage is defined as bleeding greater than 500ml for vaginal delivery, greater than 1000ml for cesarean section, or blood loss accompanied by symptoms of hypovolemia within 24 hours after delivery. After delivery, with the contraction of uterine muscle fibers and the body's coagulation function, the amount of bleeding can generally be controlled within the normal range. However, once the amount of bleeding reaches the standard for postpartum hemorrhage, it means that the mother is in danger and needs to take timely hemostatic measures. Uterine atony is the main cause of postpartum hemorrhage, which can be stopped with intrauterine hemostatic balls. The principle is to place the balloon into the uterus, inject liquids such as physiological saline into the hemostatic balloon, make it expand and contact, fill, and squeeze the inner wall of the uterine cavity, compress the damaged wound in the uterine cavity, and reduce intrauterine bleeding; at the same time, after the hemostatic balloon is expanded in the uterine cavity, it can stimulate the uterus to produce endogenous prostaglandins, induce uterine contractions, reduce or eliminate uterine contraction weakness, and further achieve the purpose of hemostasis.

[0003] However, due to the relatively narrow entrance to the lower uterine segment, the insertion of the intrauterine hemostatic balloon in clinical practice often causes jamming, making it difficult to completely insert the balloon into the uterine cavity, so that the bottom of the uterine cavity cannot contact the hemostatic balloon, affecting the hemostatic effect; some patients have poor uterine muscle fiber contraction due to their own physical constitution, age, symptoms, etc., and simply relying on the pressure generated by the liquid filled in the traditional intrauterine hemostatic balloon cannot achieve the best hemostatic effect; after the intrauterine hemostatic balloon is inserted, as the uterus contracts, the round hemostatic balloon will be squeezed outward, and once it is separated from the uterine fundus, the hemostatic effect will be affected; after the traditional intrauterine hemostatic balloon is inserted into the uterus, it can squeeze the inner wall of the uterine cavity to stop bleeding, but the bleeding site in the lower uterine segment is not stopped, which is not conducive to further treatment of postpartum hemorrhage. Summary of the Invention

[0004] The present invention aims to address the problems of conventional intrauterine hemostatic balloons in the prior art, such as their inability to properly penetrate the uterine fundus, which affects their hemostatic efficacy. Conventional intrauterine hemostatic balloons also exert insufficient pressure on the uterine wall, resulting in poor results for women with poor uterine contractions. Furthermore, the balloons can be squeezed out of the uterus, preventing compression and hemostasis of the lower uterine segment. The present invention proposes an intrauterine hemostatic device and method of use. The present invention enables the balloon to penetrate the uterine fundus, increasing pressure on the uterine wall to help stop bleeding. It also prevents the balloons from being squeezed out of the uterus, while also providing compression and hemostasis for the lower uterine segment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A uterine intracavitary hemostasis device comprises a hemostatic balloon, a front top water balloon and a catheter; the catheter passes through the front top water balloon and the hemostatic balloon in sequence; the hemostatic balloon is movably arranged at the front end of the catheter, and the front top water balloon supports the bottom of the hemostatic balloon; an injection tube I and an injection tube II are provided in the catheter; the injection tube I is connected to the hemostatic balloon; the injection tube II is connected to the front top water balloon; and a balloon wall auxiliary pressing component is also provided in the hemostatic balloon.

[0007] After the hemostatic balloon is placed in the uterus, physiological saline or other liquids are injected through the injection tube I, so that the hemostatic balloon expands, compresses and stimulates the uterine cavity, and plays the role of intrauterine hemostasis; the catheter has a certain toughness and can bring the hemostatic balloon into the uterus; the front push balloon is injected with physiological saline or other liquids through the injection tube II, and then expands and pushes out forward, pushing the hemostatic balloon forward, and with the help of the catheter, it is easier for the hemostatic balloon to pass through the narrow lower uterine segment and enter the deep part of the uterus; the balloon wall auxiliary pressing component can further push out the side wall of the hemostatic balloon after the hemostatic balloon is filled with water, increase the pressure on the inner wall of the uterine cavity, and promote hemostasis.

[0008] As a further technical improvement, the bladder wall auxiliary pressure component includes side supports, expansion wires I and II; the portion of the catheter that passes through the hemostatic balloon is provided with a movable sleeve and a fixed sleeve; the side supports are distributed and arranged between the movable sleeve and the fixed sleeve; one end of the expansion wires I and II is connected to the movable sleeve, and the other end passes through the catheter and finally extends from the end of the catheter. The fixed sleeve is fixedly arranged on the catheter and located inside the front end of the hemostatic balloon; the movable sleeve is movably arranged on the catheter and located inside the rear end of the hemostatic balloon; the expansion wires I and II pass through the hemostatic balloon along the catheter and then extend from the catheter and connect to the movable sleeve; pushing the expansion wires I and II at the end of the catheter located outside the hemostatic balloon can push the movable sleeve forward, thereby causing the side supports to expand to the surrounding area and increase the pressure on the inner wall of the uterine cavity; the side supports are slightly bent outward when not expanded, thereby ensuring that they open outward when expanded.

[0009] As a further technical improvement, a fixed plug is provided at the rear end of the catheter; the expansion wires I and II can be bent and inserted into the fixed plug. After pushing the expansion wires I and II to expand the side stays outward, the expansion wires I and II are then bent and the ends of the expansion wires I and II are inserted into the fixed plug, thereby ensuring that the side stays remain expanded. The fixed plug can be made of a material such as soft foam, allowing the expansion wires I and II to be inserted and fixed.

[0010] As a further technical improvement, the portion of the catheter extending from the front end of the hemostatic balloon is a soft core tube; a pleated protective sleeve is provided on the soft core tube; the pleated protective sleeve is connected to the hemostatic balloon. The soft core tube is relatively soft, reducing damage to the uterine lining. The pleated protective sleeve wraps around the soft core tube, increasing the outer surface area of ​​the soft core tube, reducing the pressure generated when the soft core tube contacts the uterine cavity lining, and further protecting the uterus. The pleated protective sleeve also allows the hemostatic balloon to extend and retract on the catheter. The pleated protective sleeve is made of a soft material and has rounded corners.

[0011] As a further technical improvement, the catheter is also provided with a fixing buckle located at the bottom of the anterior balloon. The fixing buckle is fixed to the catheter and provides an inward supporting force when uterine contractions push the hemostatic balloon outward, helping to support the anterior balloon and prevent the hemostatic balloon from being squeezed out of the uterus. Uterine contractions are also paroxysmal, pushing the hemostatic balloon outward during contractions, compressing the anterior balloon. After the contractions end, the anterior balloon recovers its shape and pushes the hemostatic balloon inward again, allowing it to remain on the inner wall of the uterus and act on the fundus, ensuring effective hemostasis at the fundus.

[0012] As a further technical improvement, the front water bag has a frustum-shaped lower portion and a cylindrical upper portion. Extended folds are provided on the upper portion of the front water bag. The frustum-shaped lower portion of the front water bag increases the contact area with the fixing buckle, reducing the degree of ejection. The cylindrical upper portion of the front water bag, after water injection, can extend into the lower uterine segment and push the hemostatic balloon deep into the uterus. The extended folds allow the front water bag to expand after water injection.

[0013] As a further technical improvement, one end of the injection tube I and injection tube II is equipped with an outlet in the hemostatic balloon and the front top water bladder, respectively; the other end of the injection tube I and injection tube II extends from the catheter and is equipped with a syringe connector. The injection tube I and injection tube II are used to inject liquid into the hemostatic balloon and the front top water bladder, respectively; the syringe connector is used to connect to a syringe, through which the liquid is injected into the hemostatic balloon and the front top water bladder.

[0014] Method of using the above-mentioned intrauterine hemostatic device:

[0015] Insertion: In case of intrauterine bleeding in parturient women, the hemostatic balloon is inserted from the vaginal opening and pushed into the uterus through the catheter;

[0016] Anterior thrust: When the hemostatic balloon is pushed into the uterus, the lower uterine ostium is relatively narrow, so the balloon is easily stuck when the catheter is pushed forward, resulting in the balloon being unable to be smoothly placed in the uterine fundus, affecting the hemostatic effect of the balloon. At this time, the balloon is injected forward through the injection tube II, and the anterior thrust balloon expands and pushes forward, pushing the balloon into the lower uterine segment. At the same time, the catheter is used to push the balloon to the uterine fundus. When the hemostatic balloon is pushed by the anterior thrust balloon, the folded protective sleeve is compressed. After the anterior thrust balloon expands, it fills the lower uterine segment, also playing a role in stopping bleeding at the uterine ostium and the lower uterine segment.

[0017] Injection hemostasis: Inject liquid into the hemostatic balloon through the injection tube I, causing the hemostatic balloon to expand, squeezing the inner wall of the uterus, promoting uterine contraction, and helping to stop bleeding in the uterine cavity under the contraction and squeezing of the hemostatic balloon and the uterine wall;

[0018] Strengthen support: If the mother's uterus contracts poorly, the pressure on the uterine wall by injecting the hemostatic balloon is insufficient, and sufficient stimulation of the uterus cannot be achieved, resulting in poor hemostasis. In this case, the expansion wires I and II are pushed to push the movable sleeve forward along the catheter. Due to the fixation of the fixed sleeve, the side support bars are expanded to the periphery in an arc shape, pushing the side wall of the hemostatic balloon toward the uterine wall, increasing the pressure on the uterine wall, thereby increasing stimulation of the uterus, promoting uterine contraction, and helping to stop bleeding in the uterine cavity.

[0019] Anti-loosening: As the uterus contracts, the hemostatic balloon is squeezed downward. At this time, since the fixing buckle is fixed on the catheter, although the hemostatic balloon can move on the catheter, the combined action of the fixing buckle and the front water bag prevents the hemostatic balloon from being squeezed and displaced, allowing the hemostatic balloon to remain inside the uterine cavity and contact the bottom of the uterine cavity.

[0020] The technical solution of the present invention has the following beneficial effects:

[0021] 1. The present invention sets a front water bag behind the hemostatic balloon. After water is filled, the hemostatic balloon can be pushed into the uterus when the hemostatic balloon has difficulty entering the bottom of the uterus, ensuring that the hemostatic balloon contacts the bottom of the uterine cavity and ensures good hemostasis effect at the bottom of the uterus.

[0022] 2. The present invention strengthens the pressure of the hemostatic balloon on the inner wall of the uterus through the auxiliary pressure component of the balloon wall, so that the inner wall of the uterus of mothers with poor uterine contractions can be better compressed to stop bleeding. At the same time, it also enhances the stimulation of the uterus and promotes uterine contraction, so that intrauterine bleeding can be stopped faster and better.

[0023] 3. The front water bag and fixing buckle of the present invention can continuously press the hemostatic balloon against the inside of the uterus, avoiding the problem of the hemostatic balloon being squeezed out of the uterus or separated from the uterine fundus due to uterine contraction, thereby ensuring that the compression hemostatic effect inside the uterus can be maintained continuously.

[0024] 4. After being filled with water, the front top water bag of the present invention can fill the narrow position of the lower uterine segment, so that the inner wall of the lower uterine segment maintains pressure, helps the lower uterine segment to stop bleeding, further improves the hemostatic effect of the entire uterus, helps to treat postpartum hemorrhage, and protects the health of the mother. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the three-dimensional structure of the device of the present invention.

[0026] Figure 2 It is a side structural schematic diagram of the device of the present invention.

[0027] Figure 3 Schematic diagram of the internal structure of the device of the present invention.

[0028] Figure 4 Schematic diagram of the soft core tube of the present invention.

[0029] Figure 5 Schematic diagram showing that the hemostatic balloon is difficult to push into the uterine cavity through the lower uterine segment.

[0030] Figure 6 Schematic diagram of the hemostatic balloon being pushed toward the fundus of the uterine cavity after the anterior balloon is filled with water.

[0031] Figure 7 Schematic diagram of the hemostatic balloon reaching the bottom of the uterine cavity and being filled with water, squeezing the inner wall of the uterine cavity. At the same time, the anterior balloon fills the lower segment of the uterus to prevent the hemostatic balloon from being squeezed out.

[0032] Figure markings: 1-hemostatic balloon, 2-front top water balloon, 3-catheter, 4-pleat protection sleeve, 5-fixing buckle, 6-injection tube I; 7-injection tube II, 8-spreading wire I, 9-spreading wire II, 10-extension pleat, 11-side support bar, 12-movable sleeve, 13-fixing sleeve, 14-soft core tube, 15-fixing plug, 16-uterine cavity. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1:

[0035] like Figures 1 to 7As shown, a uterine intrauterine hemostasis device includes a hemostatic balloon 1, a front top water balloon 2 and a catheter 3; the catheter 3 passes through the front top water balloon 2 and the hemostatic balloon 1 in sequence; the hemostatic balloon 1 is movably arranged at the front end of the catheter 3, and the front top water balloon 2 supports the bottom of the hemostatic balloon 1; an injection tube I6 and an injection tube II7 are provided in the catheter 3; the injection tube I6 is connected to the hemostatic balloon 1; the injection tube II7 is connected to the front top water balloon 2; and a balloon wall auxiliary pressing component is also provided in the hemostatic balloon 1.

[0036] The auxiliary pressure component of the balloon wall includes a side support bar 11, a support wire I8 and a support wire II9; the part of the catheter 3 that passes through the hemostatic balloon 1 is provided with a movable sleeve 12 and a fixed sleeve 13; the side support bars 11 are distributed and arranged between the movable sleeve 12 and the fixed sleeve 13; one end of the support wire I8 and the support wire II9 is ​​connected to the movable sleeve 12, and the other end passes through the catheter 3 and finally extends from the end of the catheter 3.

[0037] A fixing plug-in block 15 is provided at the tail end of the catheter 3 ; the expansion wires I 8 and II 9 can be bent and then inserted into the fixing plug-in block 15 .

[0038] The portion of the catheter 3 extending from the front end of the hemostatic balloon 1 is a soft core tube 14 ; a pleated protective sleeve 4 is provided on the soft core tube 14 ; and the pleated protective sleeve 4 is connected to the hemostatic balloon 1 .

[0039] The catheter 3 is further provided with a fixing buckle 5 ; the fixing buckle 5 is located at the bottom of the front top water bag 2 .

[0040] The method of use of the present invention is as follows:

[0041] Insertion: In case of intrauterine bleeding in parturient women, the hemostatic balloon 1 is inserted from the vaginal opening and pushed into the uterus through the catheter 3;

[0042] Front push: When the hemostatic balloon 1 is pushed into the uterus, due to the relatively narrow cervical ostium of the lower uterine segment, the hemostatic balloon 1 is easily stuck when the catheter 3 is pushed forward, resulting in the hemostatic balloon 1 being unable to be smoothly placed in the uterine fundus, affecting the hemostatic effect of the hemostatic balloon; at this time, the front push water balloon 2 is injected with liquid through the injection tube II 7, and the front push water balloon 2 expands and pushes forward, pushing the hemostatic balloon 1 into the lower uterine segment. At the same time, the catheter 3 cooperates to push the hemostatic balloon 1 to the uterine fundus; when the hemostatic balloon 1 is pushed by the front push water balloon 2, the pleated protective sleeve 4 is compressed; after the front push water balloon 2 expands, it fills the lower uterine segment, also playing a role in stopping bleeding at the cervical ostium and the lower uterine segment;

[0043] Injection hemostasis: Liquid is injected into the hemostatic balloon 1 through the injection tube I 6 to expand the hemostatic balloon 1, which produces squeezing stimulation on the inner wall of the uterus, promotes uterine contraction, and helps the uterine cavity 16 to stop bleeding under the contraction and squeezing of the hemostatic balloon 1 and the uterine wall;

[0044] Strengthen support: If the mother's uterus contracts poorly, the pressure on the uterine wall by injecting liquid into the hemostatic balloon 1 is insufficient, and sufficient stimulation of the uterus cannot be achieved, resulting in poor hemostasis effect; at this time, the expansion wires I8 and II9 are pushed to push the movable sleeve 12 forward along the catheter 3. Due to the fixation of the fixed sleeve 13, the side support bars 11 are expanded to the surrounding in an arc shape, pushing the side wall of the hemostatic balloon 1 against the uterine wall, increasing the pressure on the uterine wall, thereby increasing the stimulation of the uterus, promoting uterine contraction, and helping the uterine cavity 16 to stop bleeding;

[0045] Anti-loosening: As the uterus contracts, the hemostatic balloon 1 is squeezed downward. At this time, since the fixing buckle 5 is fixed on the catheter 3, although the hemostatic balloon 1 can move on the catheter 3, the fixed buckle 5 and the front water bag 2 prevent the hemostatic balloon 1 from being squeezed and displaced, so that the hemostatic balloon 1 remains inside the uterine cavity 16 and contacts the bottom of the uterine cavity 16.

[0046] Example 2:

[0047] The difference between this embodiment and the first embodiment is that the lower portion of the front top water bag 2 is in a truncated cone shape, and the upper portion is in a cylindrical shape; and an extended fold 10 is provided on the upper portion of the front top water bag 2 .

[0048] The usage of this embodiment is the same as that of the first embodiment.

[0049] Example 3:

[0050] The difference between this embodiment and embodiment 2 is that one end of the injection tube I6 and the injection tube II7 are respectively provided with outlets in the hemostatic balloon 1 and the front top water balloon 2; the other ends of the injection tube I6 and the injection tube II7 extend from the catheter 3 and are provided with a syringe connector.

[0051] The usage of this embodiment is the same as that of the first embodiment.

[0052] Example 4:

[0053] This embodiment differs from the third embodiment in that the lower portion of the front top water bladder 2 is truncated cone-shaped, while the upper portion is cylindrical; an extended fold 10 is provided on the upper portion of the front top water bladder 2. One end of the injection tube I 6 and the injection tube II 7 are provided with outlets within the hemostatic balloon 1 and the front top water bladder 2, respectively; the other ends of the injection tubes I 6 and II 7 extend from the catheter 3 and are provided with a syringe connector.

[0054] The usage of this embodiment is the same as that of the first embodiment.

[0055] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Persons skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "inside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0057] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A uterine intracavitary hemostasis device, characterized in that: The invention comprises a hemostatic balloon (1), a front top water balloon (2) and a catheter (3); the catheter (3) passes through the front top water balloon (2) and the hemostatic balloon (1) in sequence; the hemostatic balloon (1) is movably arranged at the front end of the catheter (3), and the front top water balloon (2) presses against the bottom of the hemostatic balloon (1); an injection tube I (6) and an injection tube II (7) are provided in the catheter (3); the injection tube I (6) is connected to the hemostatic balloon (1); the injection tube II (7) is connected to the front top water balloon (2); and a balloon wall auxiliary pressing component is also provided in the hemostatic balloon (1).

2. The intrauterine hemostasis device according to claim 1, characterized in that: The auxiliary pressure component of the sac wall includes a side support bar (11), a support wire I (8) and a support wire II (9); a movable sleeve (12) and a fixed sleeve (13) are provided on the portion of the catheter (3) passing through the hemostatic balloon (1); the side support bars (11) are distributed and arranged between the movable sleeve (12) and the fixed sleeve (13); one end of the support wire I (8) and the support wire II (9) is connected to the movable sleeve (12), and the other end passes through the catheter (3) and finally extends out from the end of the catheter (3).

3. The intrauterine hemostasis device according to claim 2, characterized in that: The tail of the catheter (3) is provided with a fixed plug-in block (15); the expansion wire I (8) and the expansion wire II (9) can be bent and then inserted into the fixed plug-in block (15).

4. The intrauterine hemostasis device according to claim 1, characterized in that: The portion of the catheter (3) extending from the front end of the hemostatic balloon (1) is a soft core tube (14); a pleated protective sleeve (4) is provided on the soft core tube (14); and the pleated protective sleeve (4) is connected to the hemostatic balloon (1).

5. The intrauterine hemostasis device according to claim 1, characterized in that: The catheter (3) is also provided with a fixing buckle (5); the fixing buckle (5) is located at the bottom of the front top water bag (2).

6. The intrauterine hemostasis device according to claim 1, characterized in that: The lower portion of the front top water bag (2) is in a truncated cone shape, and the upper portion is in a cylindrical shape; an extended fold (10) is provided on the upper portion of the front top water bag (2).

7. The intrauterine hemostasis device according to claim 1, characterized in that: One end of the injection tube I (6) and the injection tube II (7) are provided with outlets in the hemostatic balloon (1) and the front top water balloon (2), respectively; the other ends of the injection tube I (6) and the injection tube II (7) extend from the catheter (3) and are provided with a syringe connector.

8. The method for using the intrauterine hemostatic device according to any one of claims 1 to 7, characterized in that: The following steps are involved: 1) Insertion: When a parturient has intrauterine bleeding, the hemostatic balloon (1) is inserted from the vaginal opening and pushed into the uterus through the catheter (3); 2) Front push: When the hemostatic balloon (1) is pushed into the uterus, due to the relatively narrow cervical ostium of the lower uterine segment, the hemostatic balloon (1) is easily stuck when the catheter (3) is pushed forward, resulting in the hemostatic balloon (1) not being able to be smoothly placed into the uterine fundus, affecting the hemostatic effect of the hemostatic balloon; at this time, the front push water balloon (2) is injected with liquid through the injection tube II (7), and the front push water balloon (2) expands and pushes forward, pushing the hemostatic balloon (1) into the lower uterine segment, and at the same time, the catheter (3) is used to push the hemostatic balloon (1) to the uterine fundus; when the hemostatic balloon (1) is pushed by the front push water balloon (2), the pleated protective sleeve (4) is compressed; after the front push water balloon (2) expands, it fills the lower uterine segment, and also plays a role in stopping bleeding at the cervical ostium and the lower uterine segment; 3) Liquid injection to stop bleeding: Liquid is injected into the hemostatic balloon (1) through the liquid injection tube I (6), so that the hemostatic balloon (1) expands, produces squeezing stimulation on the inner wall of the uterus, promotes uterine contraction, and helps stop bleeding in the uterine cavity under the contraction and squeezing of the hemostatic balloon (1) and the uterine wall; 4) Strengthen support: If the mother's uterine contraction is poor, the pressure on the uterine wall by injecting the hemostatic balloon (1) is insufficient, and sufficient stimulation of the uterus cannot be achieved, resulting in poor hemostasis effect; at this time, the expansion wire I (8) and the expansion wire II (9) are pushed to make the movable sleeve (12) push forward along the catheter (3). Since the fixed sleeve (13) is fixed, the side support bar (11) is expanded to the surrounding in an arc shape, pushing the side wall of the hemostatic balloon (1) toward the uterine wall, increasing the pressure on the uterine wall, thereby increasing the stimulation of the uterus, promoting uterine contraction, and helping the uterine cavity to stop bleeding; 5) Anti-dislocation: As the uterus contracts, the hemostatic balloon (1) is squeezed downward. At this time, since the fixing buckle (5) is fixed on the catheter (3), although the hemostatic balloon (1) can move on the catheter (3), the fixing buckle (5) and the front top water bag (2) prevent the hemostatic balloon (1) from being squeezed and displaced, so that the hemostatic balloon (1) remains inside the uterine cavity and contacts the bottom of the uterine cavity.

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