Hemostatic balloon device for obstetrical department

Abstract

The invention relates to the technical field of medical instruments, and discloses an obstetrical hemostasis balloon device which comprises a balloon body and a balloon support, the balloon body is arranged at the end of one side of the balloon support, a plurality of air cavities are formed in the balloon body by arranging partition walls, a drainage catheter is further arranged in the balloon body, and the drainage catheter is arranged in the balloon support. One end of the drainage catheter is communicated with the outer wall of the balloon body, the end of the drainage catheter is fixed to the outer wall of the balloon body by arranging a sealing ring and is flush with the outer wall of the balloon body, and the other end of the drainage catheter extends into the balloon support from the balloon body and then extends outwards from the side wall of one side of the balloon support. The end, communicated with the outer wall of the balloon body, of the drainage catheter is flush with the outer wall of the balloon body, so that the defect that the hemostatic balloon is not suitable for cases with hemorrhagic spots located at the fundus of uterus due to the fact that the top end of a traditional blood drainage pipeline protrudes out of the hemostatic balloon can be overcome, and the hemostatic balloon has the advantage of being good in applicability.

Description

Technical Field

[0001] The invention relates to a hemostatic balloon device for obstetrics, belonging to the technical field of medical devices. Background Art

[0002] Postpartum hemorrhage is a serious complication after childbirth. If not promptly addressed, it can pose a serious threat to the mother's life and health. Currently, most hemostatic devices used clinically for postpartum hemorrhage are hemostatic balloons. These balloons are inflated by water or air, forming a sphere similar to the shape of the uterine cavity, allowing them to fully adhere to the endometrium and achieve a hemostatic effect. Currently, most commonly used hemostatic balloons are disposable and discarded after use, resulting in a waste of resources and increased medical costs. To this end, in the prior art, the Chinese patent application is an invention patent application CN202210071635.5, which discloses a pressure-precision-regulated uterine hemostatic balloon device. It proposes to use medical silicone material to make the entire device. Medical silicone has little irritation to human tissue and is not easy to cause allergic reactions. When the hemostatic balloon contacts the human uterine cavity tissue, it can reduce the risk of rejection and ensure the safety of patients. At the same time, the medical silicone material has good chemical stability, which can ensure that its chemical properties are stable during the subsequent disinfection process and it is not easy to degrade or deteriorate, so that the balloon device can be used multiple times, thereby reducing resource waste and medical costs.

[0003] Currently, the bleeding point of most postpartum hemorrhage cases is located in the lower uterine segment. Therefore, the packing of the above-mentioned hemostatic balloon device is an effective means of compression hemostasis. However, the above-mentioned hemostatic balloon device has the following problems when used: The drainage port is outside the hemostatic balloon, that is, the top end of the tube for draining blood is designed to protrude from the hemostatic balloon. Such a structural setting will make it unsuitable for cases where the bleeding point is located at the fundus of the uterus (that is, if the bleeding point is at the fundus of the uterus, since the top end of the tube for draining blood protrudes from the hemostatic balloon, it will affect the fit between the hemostatic balloon and the fundus of the uterus, and the balloon will find it difficult to completely and tightly contact the bleeding site of the fundus of the uterus, and it will not be able to effectively stop the bleeding from the fundus of the uterus. At the same time, when the bleeding point is located at the fundus of the uterus, blood will often accumulate at the fundus of the uterus, and the protruding end of the balloon will cause the drainage port to be improperly positioned, making it impossible to effectively drain the blood from the fundus of the uterus). Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a hemostatic balloon device for obstetrics.

[0005] The technical solutions of the present invention are as follows: A hemostatic balloon device for obstetrics includes a balloon body and a balloon stent. The balloon body is arranged on one side end of the balloon stent. Multiple air cavities are formed in the balloon body by arranging a partition wall. A drainage catheter is also arranged in the balloon body. One end of the drainage catheter is connected to the outer wall of the balloon body. This end of the drainage catheter is fixed to the outer wall of the balloon body by arranging a sealing ring and is arranged flush with the outer wall of the balloon body. The other end of the drainage catheter extends outward from a side wall of the balloon stent after extending from the balloon body into the balloon stent.

[0006] Furthermore, the air cavity includes a first air cavity located on the left side of the balloon body, a second air cavity located on the right side of the balloon body, and a third air cavity located in the middle of the balloon body, wherein the first air cavity covers the entire left side of the balloon body, the second air cavity is symmetrically distributed on the right side of the balloon body, and the end of the drainage catheter connected to the outer wall of the balloon body is arranged in a forked structure and is located in the third air cavity. One end of the forked end of the drainage catheter is connected to the outer wall of the balloon body between the second air cavities on both sides, and the other end is connected to the outer wall of the balloon body between the first air cavity and the second air cavity.

[0007] Furthermore, a wave-shaped expansion and contraction portion is provided on the tube section at the bifurcated end of the drainage catheter, and the wave-shaped expansion and contraction portion enables the bifurcated end of the drainage catheter to change in length.

[0008] Furthermore, a stent ring is provided in each bifurcated end of the drainage catheter, which is connected to the inner wall of the bifurcated end of the drainage catheter by providing a connecting block. A degradable capsule is clamped in the stent ring, and an anticoagulant is provided in the degradable capsule.

[0009] Furthermore, the bifurcated ends of the drainage catheter are arranged perpendicular to each other.

[0010] Furthermore, one end of the trachea is connected to the air cavity, and the other end of the trachea extends out of the balloon body and is connected to the inflation component. The trachea and the air cavity are arranged in a one-to-one correspondence. A pressure sensor is provided on each trachea, and each pressure sensor is electrically connected to the inflation component. The inflation component regulates the inflation pressure through the pressure value feedback from the pressure sensor.

[0011] Furthermore, a drainage valve is provided on the end of the drainage catheter extending out of the balloon stent.

[0012] Furthermore, a support platform is provided on the balloon support.

[0013] Furthermore, the balloon stent is provided with a threaded portion, and the end of the balloon stent away from the balloon body is threadedly connected to the adjustment rod through the threaded portion, and the end of the adjustment rod away from the balloon stent is provided with a connecting ring.

[0014] Furthermore, anti-slip stripes are provided on the outer wall of the balloon body.

[0015] The present invention has the following beneficial effects: 1. The present invention connects the drainage catheter with the outer wall of the balloon body, and sets the end of the drainage catheter connected to the outer wall of the balloon body flush with the outer wall of the balloon body, so as to overcome the defect of the traditional hemostatic balloon with a protruding top end of the blood drainage tube that is not suitable for cases where the bleeding point is located at the fundus of the uterus, and has the advantage of good applicability.

[0016] 2. The present invention provides multiple air chambers, which are arranged into a first air chamber, a second air chamber, and a third air chamber. This allows selective inflation according to the specific conditions of the bleeding point during use, allowing the balloon body to adapt to bleeding points of different locations and sizes. At the same time, the drainage catheter is bifurcated so that the bifurcated portions on both sides of the drainage catheter are located between the second air chambers on both sides and between the first air chamber and the second air chamber, respectively. When hemostasis is performed, the first air chamber, the second air chamber, and the third air chamber are inflated according to the actual situation. The inflation of the first and second air chambers can fit the bleeding point to achieve hemostasis. The inflation of the third air chamber provides sufficient structural support for the balloon body, and the inflation of the first and second air chambers can further ensure the hemostatic effect. At the same time, when the first and second air chambers fit the bleeding point, they can squeeze and drain the blood near the bleeding point in the uterine cavity, thereby allowing the blood to flow into the bifurcated structure of the drainage catheter, fully collecting the blood in the uterine cavity, avoiding blood accumulation in the uterine cavity, reducing the risk of infection, and achieving good compression hemostasis and blood drainage effects.

[0017] 3. The present invention arranges a degradable capsule in the bifurcated end of the drainage catheter, and arranges an anticoagulant in the degradable capsule. When blood flows into the bifurcated end of the drainage catheter, the degradable capsule will gradually degrade with the inflow of blood, thereby gradually releasing the anticoagulant, so as to prevent the blood from coagulating in the drainage catheter and ensure smooth backflow of blood. At the same time, by arranging a drainage valve on the protruding end of the drainage catheter, the setting of the drainage valve can adjust the blood drainage speed and prevent the blood from flowing back during the drainage process, which has the advantage of good drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the external structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the internal structure of the balloon body of the present invention; Figure 4 Schematic diagram of the structure of the stent ring in the present invention; Figure 5This is an enlarged view of point A.

[0019] The reference numerals in the figures are as follows: 1. Balloon body; 2. Balloon bracket; 3. Partition wall; 4. Drainage catheter; 5. Sealing ring; 6. First air cavity; 7. Second air cavity; 8. Third air cavity; 9. Wave-shaped expansion part; 10. Bracket ring; 11. Connecting block; 12. Degradable capsule; 13. Trachea; 14. Pressure sensor; 15. Drainage valve; 16. Support platform; 17. Threaded part; 18. Adjusting rod; 19. Connecting ring; 20. Anti-slip stripes. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example: Please refer to Figure 1 The present embodiment provides a hemostatic balloon device for obstetrics, comprising a balloon body 1 and a balloon support 2, wherein the balloon body 1 is fixedly mounted on the top end of the balloon support 2. In the present embodiment, the balloon body 1 is arranged in an elliptical structure, and a plurality of air cavities are formed in the balloon body 1 by setting a partition wall 3. The specific number and distribution of the air cavities can be set according to actual conditions to cope with the compression and hemostasis work of bleeding points of different positions and sizes. A drainage catheter 4 is also provided in the balloon body 1, one end of which is connected to the outer wall of the balloon body 1. This end of the drainage catheter 4 is fixed to the outer wall of the balloon body 1 by setting a sealing ring 5 and is flush with the outer wall of the balloon body 1. The other end of the drainage catheter 4 extends outward from a side wall of the balloon support 2 after extending from the balloon body 1 into the balloon support 2, so as to be able to guide the drained blood into an external collection vessel for collection.

[0022] In this embodiment, the air cavity includes a first air cavity 6 located on the left side of the balloon body 1, a second air cavity 7 located on the right side of the balloon body 1, and a third air cavity 8 located in the middle of the balloon body 1, wherein the first air cavity 6 covers the entire left side of the balloon body 1, and the second air cavity 7 is symmetrically distributed up and down on the right side of the balloon body 1. The end of the drainage catheter 4 connected to the outer wall of the balloon body 1 is arranged in a forked structure, and the tube section of the drainage catheter 4 located in the balloon body 1 is arranged in the third air cavity 8. One end of the forked end of the drainage catheter 4 is connected to the outer wall of the balloon body 1 between the second air cavities 7 on both sides, and the other end is connected to the outer wall of the balloon body 1 between the first air cavity 6 and the second air cavity 7. At the same time, the forked ends of the drainage catheter 4 are also arranged perpendicular to each other to facilitate the subsequent blood drainage needs.

[0023] Through the aforementioned arrangement, this embodiment, by aligning the end of the drainage catheter 4 that connects to the outer wall of the balloon body 1 flush with the outer wall of the balloon body 1, overcomes the drawback of conventional hemostatic balloons, which have a protruding tip end of the blood drainage tube and are therefore unsuitable for cases where the bleeding point is located at the fundus of the uterus. Furthermore, by specifically arranging the air cavity and drainage catheter 4 according to the aforementioned structure, the balloon body 1 can be selectively inflated according to the specific location of the bleeding point during use, enabling it to adapt to bleeding points of varying locations and sizes. This overcomes conventional drawbacks while also achieving excellent compression, hemostasis, and blood drainage effects. The specific method of use is as follows: When using the hemostatic balloon, the first air cavity 6 is aligned with the inferior uterine wall, the second air cavity 7 is aligned with the superior uterine wall, and the third air cavity 8 is used to provide sufficient structural support for the balloon body 1. The third air cavity 8 is inflated according to actual needs. When the bleeding point is the lower uterine wall, by inflating air into the first air cavity 6, the first air cavity 6 can compress and stop bleeding at the bleeding point on the lower uterine wall. At the same time, during the compression and hemostasis process, the first air cavity 6 can also squeeze and drain the blood near the bleeding point, so that it can be drained into the bifurcation structure of the drainage catheter 4. When the bleeding point is the upper uterine wall, by inflating air into the second air cavity 7 at the corresponding position according to the specific bleeding point, the second air cavity 7 can compress and stop bleeding at the bleeding point on the upper uterine wall. At the same time, during the compression and hemostasis process, the second air cavity 7 can also squeeze and drain the blood near the bleeding point, so that it can be drained into the bifurcation structure of the drainage catheter 4. When the congestion point is located at the fundus of the uterus, at this time, the first air cavity 6 and / or the second air cavity 7 and / or the third air cavity 8 at the corresponding position are inflated according to the bleeding point, that is, the bleeding point located at the fundus of the uterus can be compressed to stop bleeding. At the same time, during the compression and hemostasis process, the first air cavity 6 and / or the second air cavity 7 and / or the third air cavity 8 can also squeeze and drain the blood near this bleeding point to drain it into the bifurcated structure of the drainage catheter 4. The drainage tube with two drainage ports can fully collect the blood in the uterine cavity to avoid blood accumulation in the uterine cavity. It should be noted that during use, the connection port where the bifurcated end of the drainage catheter 4 is connected to the balloon body 1 should avoid the bleeding point as much as possible to ensure the compression and hemostasis ability of the balloon body 1.

[0024] Since the balloon body 1 will undergo corresponding deformation when inflated in the air cavity, in order to adapt to this deformation, in this embodiment, a wave-shaped expansion and contraction portion 9 is also provided on the tube section at the bifurcated end of the drainage catheter 4. The wave-shaped expansion and contraction portion 9 allows the bifurcated end of the drainage catheter 4 to change in length to adapt to the deformation of the balloon body 1.

[0025] To inflate the air cavities, the hemostatic balloon further includes trachea 13, with the number of trachea 13 corresponding to the number of air cavities. In this embodiment, there are four trachea 13, corresponding to the first air cavity 6, the two second air cavities 7, and the third air cavity 8. One end of each trachea 13 is connected to the corresponding air cavity, and the other end of each trachea 13 extends out of the balloon body 1 and is connected to an inflation assembly. The inflation assembly is used to inflate the trachea 13, thereby allowing air to be inflated into the corresponding air cavity through the trachea 13. Each trachea 13 is provided with a pressure sensor 14, which is used to detect the air pressure within the corresponding trachea 13 and obtain the air pressure within the corresponding air cavity. Each pressure sensor 14 is electrically connected to the inflation assembly. The inflation assembly regulates the inflation pressure based on the pressure value fed back by the pressure sensor 14, ensuring that the pressure within the air cavity is stable within an appropriate range, avoiding excessive pressure that may damage human tissue, or insufficient pressure that may result in poor hemostasis. In this embodiment, the inflation component can be an air pump and a controller commonly used in the prior art. The controller is electrically connected to the pressure sensor 14 and the air pump, and the controller controls the inflation pressure of the air pump based on the pressure value fed back by the pressure sensor 14. The specific control logic can be: Step 1: The controller calculates the target pressure of the corresponding air cavity. The calculation formula for the target pressure is:

[0026] Where P represents the target pressure of the corresponding air cavity, P0 represents the basic pressure value, which ranges from 4 to 8 kPa. The specific value is determined according to the actual situation. △P1 represents the pressure compensation caused by bleeding rate, and △P2 represents the pressure compensation caused by the patient's blood pressure.

[0027] The pressure compensation caused by bleeding rate is calculated according to the following formula:

[0028] Wherein, ΔP1 represents the pressure compensation caused by the bleeding rate, k1 represents the bleeding rate compensation coefficient, and its value range is 0.1 to 0.5 kPa / (ml / min). The specific value is determined according to the actual situation. v represents the blood flow rate in the drainage catheter 4, which is determined according to the value set by the drainage valve 15. In order to satisfy the controller's acquisition of this value, the drainage valve 15 is electrically connected to the controller.

[0029] The pressure compensation due to the patient's blood pressure is calculated according to the following formula:

[0030] Wherein, △P2 represents the pressure compensation caused by the patient's blood pressure, k2 represents the blood pressure compensation coefficient, and its value range is 0.05-0.2. The specific value is determined according to the actual situation. BP1 represents the patient's systolic blood pressure, which is determined according to the actual test value. BP2 represents the preset normal systolic blood pressure, which is about 120 mmHg and can also be determined according to the actual situation.

[0031] Step 2: The controller uses a PID control algorithm to regulate the air cavity pressure. Specifically, the controller controls the air pump to perform corresponding inflation and deflation operations based on the target air cavity pressure calculated in the first step and the actual measured air cavity pressure, so that the actual air cavity pressure approaches the target pressure.

[0032] The deviation calculation formula is as follows:

[0033] Wherein, et represents the deviation, P3 represents the actual pressure of the corresponding air cavity fed back by the pressure sensor 14, and P represents the target pressure of the corresponding air cavity.

[0034] The control output calculation formula is as follows:

[0035] Where, ut represents the control output, K p Indicates the proportional coefficient, the value range is 0.5~2, K p Determines the response speed of the controller to the current deviation, et represents the deviation, K d Indicates the differential coefficient, the value range is 0.05~0.5, K d Used to reduce system oscillations, Represents the differential function of et.

[0036] Through the above-mentioned settings, when the bleeding rate and the patient's systolic blood pressure change, the controller can calculate the target pressure required by the air cavity at this time to control the inflation pump to perform corresponding control actions, and combine the pressure value fed back by the pressure sensor 14 to make the actual pressure in the air cavity approach the target pressure.

[0037] In this embodiment, a stent ring 10 is provided in each bifurcated end of the drainage catheter 4. The stent ring 10 is connected to the inner wall of the bifurcated end of the drainage catheter 4 by providing a connecting block 11. A degradable capsule 12 is clamped in the stent ring 10. The degradable capsule 12 contains an anticoagulant. A drainage valve 15 is also provided on the end of the drainage catheter 4 extending from the balloon stent 2. Through the above-mentioned arrangement, when blood flows into the bifurcated end of the drainage catheter 4, the degradable capsule 12 will gradually degrade with the inflow of blood, thereby gradually releasing the anticoagulant, so as to prevent the blood from coagulating in the drainage catheter 4 and ensure smooth backflow of blood. At the same time, by providing the drainage valve 15 on the protruding end of the drainage catheter 4, the setting of the drainage valve 15 can adjust the blood drainage speed and prevent the blood from flowing back during the drainage process. The degradable capsule 12 can be made of common materials such as starch and gelatin. The degradable capsule 12 will be consumed each time a compression hemostasis operation is performed. Before the next hemostasis operation, medical staff need to use tools such as tweezers to pre-insert the degradable capsule 12 into the stent ring 10 for use.

[0038] In this embodiment, a support platform 16 is also fixedly provided on the balloon holder 2. A threaded portion 17 is also provided on the balloon holder 2. The end of the balloon holder 2 away from the balloon body 1 is threadedly connected to an adjustment rod 18 through the threaded portion 17. A connecting ring 19 is provided on the end of the adjustment rod 18 away from the balloon holder 2. Through the above-mentioned arrangement, when the balloon body 1 is delivered into the uterus to perform the required compression and hemostasis work, the support platform 16 can play a role of fixed support at the cervical os position to avoid the phenomenon of the balloon body 1 being offset. The arrangement of the adjustment rod 18 can adjust the position of the balloon body 1 by adjusting the length of the balloon holder 2 extending out of the adjustment rod 18 when necessary, so as to adjust the compression and hemostasis position and pressure of the balloon body 1 accordingly. The arrangement of the connecting ring 19 is used to connect with external components, so as to fix the balloon holder 2 so as to facilitate the subsequent compression and hemostasis work of the balloon body 1.

[0039] In this embodiment, anti-slip stripes 20 may be further provided on the outer wall of the balloon body 1 to prevent the balloon body 1 from slipping during the process of compressing the bleeding point to stop bleeding.

[0040] In this embodiment, the balloon body 1 can also be made of a material that is elastic, biocompatible, and can withstand high-temperature and high-pressure sterilization, such as medical silicone commonly used in the prior art, or other special materials, so that it can be easily cleaned and disinfected before reuse, thereby reducing medical costs and reducing waste of resources.

[0041] The working principle of this embodiment is that when in use, the surgeon inserts the balloon body 1 into the uterus, and then controls the inflation component to start working according to the bleeding point. The inflation component inflates the air cavity at the corresponding position through the trachea 13, so that the air cavity compresses the bleeding point to stop bleeding. At the same time, the inflation component adjusts the pressure inside the air cavity according to its own preset control logic and feedback from the pressure sensor 14 to ensure that the pressure of the air cavity on the bleeding point is at an appropriate value, avoiding excessive pressure that damages human tissue or insufficient pressure that causes poor hemostasis. During the compression hemostasis process, blood in the uterine cavity will enter the bifurcated structure of the drainage catheter 4 and flow outward to an external collection container under the action of the drainage catheter 4. The surgeon can adjust the blood drainage rate of the drainage catheter 4 by controlling the drainage valve 15 to improve tissue perfusion, remove harmful substances, and avoid the occurrence of certain complications.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hemostatic balloon device for obstetrics, comprising a balloon body (1) and a balloon support (2), wherein the balloon body (1) is arranged on one end portion of the balloon support (2), and is characterized in that: A plurality of air cavities are formed in the balloon body (1) by providing a partition wall (3). A drainage catheter (4) is also provided in the balloon body (1). One end of the drainage catheter (4) is connected to the outer wall of the balloon body (1). This end of the drainage catheter (4) is fixed to the outer wall of the balloon body (1) by providing a sealing ring (5) and is flush with the outer wall of the balloon body (1). The other end of the drainage catheter (4) extends from the balloon body (1) into the balloon support (2) and then extends outward from a side wall of the balloon support (2).

2. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: The air cavity comprises a first air cavity (6) located on the left side of the balloon body (1), a second air cavity (7) located on the right side of the balloon body (1), and a third air cavity (8) located in the middle of the balloon body (1), wherein the first air cavity (6) covers the entire left side of the balloon body (1), the second air cavity (7) is symmetrically distributed up and down on the right side of the balloon body (1), the end of the drainage catheter (4) connected to the outer wall of the balloon body (1) is arranged in a forked structure and is arranged in the third air cavity (8), one end of the forked end of the drainage catheter (4) is connected to the outer wall of the balloon body (1) between the second air cavities (7) on both sides, and the other end is connected to the outer wall of the balloon body (1) between the first air cavity (6) and the second air cavity (7).

3. The hemostatic balloon device for obstetrics according to claim 2, characterized in that: The tube section at the bifurcated end of the drainage catheter (4) is further provided with a wave-shaped telescopic portion (9), which enables the bifurcated end of the drainage catheter (4) to change in length.

4. The hemostatic balloon device for obstetrics according to claim 2, characterized in that: A stent ring (10) is provided in each bifurcated end of the drainage catheter (4), and the stent ring (10) is connected to the inner wall of the bifurcated end of the drainage catheter (4) by providing a connecting block (11). A degradable capsule (12) is clamped in the stent ring (10), and an anticoagulant is provided in the degradable capsule (12).

5. The hemostatic balloon device for obstetrics according to claim 2, characterized in that: The bifurcated ends of the drainage catheter (4) are arranged perpendicular to each other.

6. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: One end of a trachea (13) is connected to the air cavity, and the other end of the trachea (13) extends out of the balloon body (1) and is connected to an inflation component. The trachea (13) and the air cavity are arranged in a one-to-one correspondence. A pressure sensor (14) is provided on each trachea (13), and each pressure sensor (14) is electrically connected to the inflation component. The inflation component regulates the inflation pressure through the pressure value fed back by the pressure sensor (14).

7. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: A drainage valve (15) is provided on the end of the drainage catheter (4) extending out of the balloon stent (2).

8. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: A support platform (16) is also provided on the balloon support (2).

9. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: The balloon support (2) is further provided with a threaded portion (17), and the end of the balloon support (2) away from the balloon body (1) is threadedly connected to an adjustment rod (18) via the threaded portion (17), and a connecting ring (19) is provided on the end of the adjustment rod (18) away from the balloon support (2).

10. The hemostatic balloon device for obstetrics according to claim 1, characterized in that: Anti-slip stripes (20) are also provided on the outer wall of the balloon body (1).

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