Uterine cavity compression hemostasis device

Abstract

The utility model relates to a uterine cavity compression hemostasis device which comprises a balloon and a catheter set. The sacculus comprises a first sacculus, the outer side of the first sacculus is sleeved with a second sacculus, and the outer side of the second sacculus is sleeved with a third sacculus; the upper end of the catheter set sequentially penetrates through the first balloon, the second balloon and the third balloon in a sealed mode, and a drainage hole is formed in the top end of the catheter set and extends out of the third balloon. The catheter set comprises a first liquid injection pipe, a second liquid injection pipe and an air injection pipe, the first liquid injection pipe enables the first balloon to be communicated with a liquid injection opening of an external liquid injection device, the liquid injection pipe enables the third balloon to be communicated with the liquid injection opening of the external liquid injection device, and the air injection pipe enables the second balloon to be communicated with an air injection opening of an external air injection device. The density of the whole balloon is reduced by forming the air bag, and the expanded second balloon applies upward force to the third balloon, so that the third balloon can perform compression hemostasis on a bleeding part at the upper part in a uterine cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a uterine cavity compression hemostasis device. Background Art

[0002] As a non-surgical method, intrauterine balloon compression hemostasis can quickly and effectively stop bleeding in pregnant women with postpartum hemorrhage. When used, after the balloon is placed in the uterine cavity, normal saline is injected into the balloon, so that the balloon slowly swells and then compresses the inner wall of the uterus, thereby stopping bleeding smoothly; the blood in the uterine cavity flows out through the balloon catheter group to avoid covering up the condition. Compared with traditional surgical treatments, intrauterine balloon compression hemostasis has the advantages of less trauma, simple operation, safety, and high economic benefits. Clinical studies have shown that this method has achieved good results in the treatment of postpartum hemorrhage, with a success rate of up to 89%-94%, and will not have a significant impact on the uterine function of the parturient.

[0003] However, since most pregnant women's delivery posture is with the cervix facing downwards, and the gravity of the balloon itself after being filled with water is always downward, the balloon can only effectively compress and stop bleeding on the inner wall of the lower half of the uterine cavity. If bleeding occurs in the upper half of the inner wall of the uterine cavity, the existing uterine cavity compression balloon will find it difficult to compress the upper bleeding position even after being filled with water, and may even aggravate the pressure on the inner wall of the lower half of the uterine cavity.

[0004] Therefore, it is necessary to design a new uterine cavity compression balloon to achieve effective compression and hemostasis on the upper part of the uterine cavity inner wall. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a uterine cavity compression hemostasis device to avoid the problem that the existing uterine cavity compression balloon is difficult to compress the bleeding position on the upper part of the uterine cavity inner wall.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A uterine cavity compression hemostasis device comprises a balloon and a catheter group; the balloon comprises a first balloon, a second balloon is sheathed on the outer side of the first balloon, the bottom of the second balloon is fixedly connected to the bottom of the first balloon, and the volume of the second balloon is greater than that of the first balloon; a third balloon is sheathed on the outer side of the second balloon, the bottom of the third balloon is fixedly connected to the bottom of the second balloon, and the volume of the third balloon is greater than that of the second balloon;

[0008] The upper end of the catheter group is sealed and passes through the first balloon, the second balloon and the third balloon in sequence from bottom to top. The top of the catheter group is provided with a drainage hole and extends out of the third balloon. The lower end of the catheter group is used to communicate with an external drainage device.

[0009] The catheter group includes a first liquid injection tube, a second liquid injection tube and an air injection tube. The first liquid injection tube is used to connect the first balloon with the liquid injection port of an external liquid injection device, the second liquid injection tube is used to connect the third balloon with the liquid injection port of the external liquid injection device, and the air injection tube is used to connect the second balloon with the air injection port of the external air injection device.

[0010] To further improve the above technical solution, a first valve that can be opened and closed is provided on the end of the first liquid injection pipe close to the external liquid injection device, a second valve that can be opened and closed is provided on the end of the second liquid injection pipe close to the external liquid injection device, and a third valve that can be opened and closed is provided on the end of the gas injection pipe close to the external gas injection device.

[0011] Furthermore, the catheter set further comprises a drainage tube and a tube sleeve, and the first liquid injection tube, the second liquid injection tube, the gas injection tube and the drainage tube are all independent catheter bodies;

[0012] The tube sleeve tightly wraps the first liquid injection tube, the second liquid injection tube, the gas injection tube and the drainage tube to form an integral tube bundle structure. At the position where the catheter assembly passes into the first balloon, the outer wall of the tube sleeve is sealed and fixedly connected to the first balloon.

[0013] The upper end of the first injection tube is located in the first balloon, and the lower end of the first injection tube is sealed through the tube sleeve and passes out of the first balloon;

[0014] The upper end of the second injection tube is located in the third balloon, and the lower end of the second injection tube passes through the tube sleeve to seal and pass out of the first balloon;

[0015] The upper end of the gas injection tube is located in the second balloon, and the lower end of the gas injection tube is sealed through the sleeve and passes out of the first balloon;

[0016] The upper end of the drainage tube is sealed and passes through the first balloon, the second balloon and the third balloon in sequence and then extends out of the third balloon. The drainage hole is located at the top of the drainage tube, and the lower end of the drainage tube is connected to the external drainage device.

[0017] Optionally, the catheter set includes a catheter, the upper end of which is sealed and passes through the first balloon, the second balloon and the third balloon in sequence and then extends out of the third balloon, and the drainage hole is located at the top of the catheter; the lower end of the catheter is bifurcated to form a first branch tube, a second branch tube, a third branch tube and a fourth branch tube;

[0018] The interior of the catheter is provided with a first liquid injection channel, a second liquid injection channel, a gas injection channel and a drainage channel which are not connected to each other along the length direction of the catheter;

[0019] A first injection channel outlet is provided on the side wall of the catheter located in the first balloon to connect the first injection channel with the first balloon, and an inlet of the first injection channel is connected with the first branch pipe; the first injection channel is formed as the first injection pipe;

[0020] A second injection channel outlet is provided on the side wall of the catheter located in the third balloon to connect the second injection channel with the third balloon, and an inlet of the second injection channel is connected with the second branch pipe; the second injection channel is formed as the second injection pipe;

[0021] An outlet of a gas injection channel is provided on the side wall of the catheter located in the second balloon to connect the gas injection channel with the second balloon, and an inlet of the gas injection channel is connected with the third branch pipe; the gas injection channel is formed as the gas injection pipe;

[0022] A drainage channel inlet is provided on the catheter passing through the outside of the third balloon, and the drainage channel inlet forms the drainage hole; the drainage channel outlet is connected to the fourth branch tube, and the outlet of the fourth branch tube is used to connect to the external drainage device.

[0023] Furthermore, the inlets of the first branch pipe and the second branch pipe are both connected to the liquid injection port of the external liquid injection device, and the inlet of the third branch pipe is connected to the gas injection port of the external gas injection device.

[0024] Furthermore, the outer diameters of the first liquid injection tube, the second liquid injection tube and the gas injection tube are 1 / 4-1 / 3 of the inner diameter of the catheter.

[0025] Furthermore, the length of the portion of the upper end of the catheter assembly extending outside the third balloon is 4-7 mm.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The utility model provides a uterine cavity compression hemostasis device, which further arranges two balloons on the basis of a traditional single uterine cavity compression balloon, and then injects physiological saline into the first balloon and the third balloon respectively through an external liquid injection device and a gas injection device, and injects gas into the second balloon, so that the density of the entire balloon is reduced by forming an air balloon, and the expanded second balloon gives the third balloon an upward force, so that the third balloon can compress and stop bleeding at the upper bleeding site in the uterine cavity, and the three-layer structure of the balloon can ensure that the gas in the second balloon will not enter the uterine cavity, and the structure is safe and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a uterine cavity compression hemostasis device according to the first embodiment;

[0029] Figure 2 This is a schematic structural diagram of a uterine cavity compression hemostasis device according to Embodiment 2;

[0030] Among them, there are a first balloon 1, a second balloon 2, a third balloon 3, a first injection tube 4, a second injection tube 5, an air injection tube 6, a drainage tube 7, a sleeve 8, a catheter 9, a first branch tube 10, a second branch tube 11, a third branch tube 12, and a fourth branch tube 13. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0032] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] See also Figure 1 and Figure 2 A uterine cavity compression hemostasis device of a specific embodiment includes a balloon and a catheter group; the balloon includes a first balloon 1, the first balloon 1 is sheathed with a second balloon 2 on the outside, the bottom of the second balloon 2 is fixedly connected to the bottom of the first balloon 1, and the volume of the second balloon 2 is greater than that of the first balloon 1; the second balloon 2 is sheathed with a third balloon 3 on the outside, the bottom of the third balloon 3 is fixedly connected to the bottom of the second balloon 2, and the volume of the third balloon 3 is greater than that of the second balloon 2;

[0035] The upper end of the catheter group is sealed and passes through the first balloon 1, the second balloon 2 and the third balloon 3 from bottom to top in sequence. The top of the catheter group is provided with a drainage hole and extends out of the third balloon 3. The lower end of the catheter group is used to communicate with an external drainage device (not shown in the figure);

[0036] The catheter group includes a first liquid injection tube 4, a second liquid injection tube 5 and an air injection tube 6. The first liquid injection tube 4 is used to connect the first balloon 1 with the liquid injection port of an external liquid injection device (not shown in the figure), the second liquid injection tube 5 is used to connect the third balloon 3 with the liquid injection port of an external liquid injection device (not shown in the figure), and the air injection tube 6 is used to connect the second balloon 2 with the air injection port of an external air injection device (not shown in the figure).

[0037] A uterine cavity compression hemostasis device of the embodiment is further provided with two balloons on the basis of a traditional single uterine cavity compression balloon, and then physiological saline is respectively injected into the first balloon 1 and the third balloon 3 through an external liquid injection device and a gas injection device, and gas is injected into the second balloon 2. In this way, the expanded second balloon 2 gives an upward force to the third balloon 3, so that the third balloon 3 can compress and stop the bleeding site in the upper part of the uterine cavity, and the three-layer structure of the balloon can ensure that the gas in the second balloon 2 will not enter the uterine cavity, and the structure is safe and simple.

[0038] During implementation, the first balloon 1, the second balloon 2 and the third balloon 3 are inflated to be inverted pear-shaped to better fit the inner wall of the uterine cavity; in the contracted state, they are equal in size from top to bottom.

[0039] Among them, an openable and closable first valve (not shown in the figure) is provided on the end of the first liquid injection tube 4 close to the external liquid injection device, an openable and closable second valve (not shown in the figure) is provided on the end of the second liquid injection tube 5 close to the external liquid injection device, and an openable and closable third valve (not shown in the figure) is provided on the end of the gas injection tube 6 close to the external gas injection device; an openable and closable valve (not shown in the figure) is provided on the catheter section of the catheter group close to the external drainage device.

[0040] In this way, the injection of physiological saline or gas can be controlled through each valve. During implementation, the first balloon 1 and the third balloon 3 are each externally connected to an injection device, specifically a syringe, for easy operation.

[0041] Two feasible embodiments are provided below with respect to the specific structure of the catheter assembly:

[0042] Embodiment 1

[0043] See also Figure 1 The catheter group further includes a drainage tube 7 and a tube sleeve 8, and the first liquid injection tube 4, the second liquid injection tube 5, the gas injection tube 6 and the drainage tube 7 are all independent catheter bodies;

[0044] The tube sleeve 8 tightly wraps the first liquid injection tube 4, the second liquid injection tube 5, the gas injection tube 6 and the drainage tube 7 to form an integral tube bundle structure. At the position where the catheter assembly penetrates the first balloon 1, the outer wall of the tube sleeve 8 is sealed and fixedly connected to the first balloon 1;

[0045] The upper end of the first injection tube 4 is located in the first balloon 1, and the lower end of the first injection tube 4 passes through the first balloon 1 through the tube sleeve seal;

[0046] The upper end of the second injection tube 5 is located in the third balloon 3, and the lower end of the second injection tube 5 is sealed through the sleeve and passes out of the first balloon 1;

[0047] The upper end of the gas injection tube 6 is located in the second balloon 2, and the lower end of the gas injection tube 6 is sealed through the sleeve and passes out of the first balloon 1;

[0048] The upper end of the drainage tube 7 is sealed and passes through the first balloon 1, the second balloon 2 and the third balloon 3 in sequence and then extends out of the third balloon 3. The drainage hole is located at the top of the drainage tube 7, and the lower end of the drainage tube 7 is connected to the external drainage device.

[0049] Embodiment 2

[0050] The catheter group includes a catheter 9, the upper end of which is sealed and passes through the first balloon 1, the second balloon 2 and the third balloon 3 in sequence and then extends out of the third balloon 3, and the drainage hole is located at the top of the catheter 9; the lower end of the catheter 9 is bifurcated to form a first branch tube 10, a second branch tube 11, a third branch tube 12 and a fourth branch tube 13;

[0051] The interior of the catheter 9 is provided with a first liquid injection channel, a second liquid injection channel, a gas injection channel and a drainage channel which are not connected to each other along the length direction of the catheter 9;

[0052] A first injection channel outlet is provided on the side wall of the catheter located in the first balloon 1 to connect the first injection channel with the first balloon 1, and the inlet of the first injection channel is connected with the first branch pipe 10; the first injection channel is formed as the first injection pipe 4;

[0053] A second injection channel outlet is provided on the side wall of the catheter located in the third balloon 3 to connect the second injection channel with the third balloon 3, and the inlet of the second injection channel is connected with the second branch pipe 11; the second injection channel is formed as the second injection pipe 5;

[0054] An outlet of a gas injection channel is provided on the side wall of the catheter located in the second balloon 2 to connect the gas injection channel with the second balloon 2, and an inlet of the gas injection channel is connected with the third branch pipe 12; the gas injection channel is formed as the gas injection pipe 6;

[0055] A drainage channel inlet is provided on the catheter passing through the outside of the third balloon, and the drainage channel inlet is formed as the drainage hole; the drainage channel outlet is communicated with the fourth branch tube 13, and the outlet of the fourth branch tube 13 is used to connect to the external drainage device;

[0056] The inlets of the first branch pipe 10 and the second branch pipe 11 are both connected to the liquid injection port of the external liquid injection device, and the inlet of the third branch pipe 12 is connected to the gas injection port of the external gas injection device.

[0057] In the second embodiment, the outer diameters of the first liquid injection tube 4 , the second liquid injection tube 5 and the gas injection tube 6 are 1 / 4-1 / 3 of the inner diameter of the catheter 9 .

[0058] The feasible embodiments of the above two catheter group structures, when in use, the medical staff first checks the bleeding site of the uterine cavity. When there is bleeding in the upper part of the uterine cavity, the entire uterine cavity compression balloon is sent into the uterine cavity through the cervical opening, and the external drainage device, injection device and gas injection device are connected. The first valve is opened, and physiological saline (or other sterile liquid) is first injected into the first balloon 1 to make the first balloon 1 full and expand, and then the first valve is closed. If there is no bleeding in the lower part of the uterine cavity, there is no need to inject too much physiological saline into the first balloon 1; the second valve is opened, and the second balloon 2 is injected The gas causes the second balloon 2 to expand upward and then close the second valve; open the third valve, inject physiological saline into the third balloon 3, the third balloon 3 is filled and expanded, and then the third valve is closed, and the bleeding part of the upper part of the uterine cavity is compressed and hemostatic under the support of the second balloon 2; at the same time, the valve on the catheter (or drainage tube 7) section connected to the drainage device is opened, and the residual blood in the uterine cavity will enter the drainage device through the drainage hole; the medical staff observes whether there is blood continuously entering the drainage device to monitor the hemostatic effect in real time and judge when to remove the entire uterine cavity compression balloon. When the hemostasis is completed and can be removed, open each valve in turn to release the physiological saline and gas in each balloon, and then remove the contracted balloons from the uterine cavity. The gas injected into the second balloon 2 can be carbon dioxide, a mixed gas of carbon dioxide and oxygen, or air. The entire catheter group, the first balloon 1, the second balloon 2 and the third balloon 3 are all made of silicone rubber.

[0059] During implementation, the drainage device of the utility model is specifically a drainage bag, which is simple, convenient and low in cost.

[0060] The length of the upper end of the catheter assembly extending outside the third balloon 3 is 4-7 mm.

[0061] During implementation, the length of the upper end of the catheter group extending out of the third balloon 3 is preferably 5 mm, so that the top of the catheter group just abuts against the top of the uterine cavity. When the entire uterine cavity compression balloon is sent into the uterine cavity, it is also operated by the touch of medical staff. When it is felt that the top of the catheter group just abuts against the top of the uterine cavity, it can be used as an accurate placement signal to preliminarily ensure that the entire uterine cavity compression balloon is placed accurately. At the same time, when injecting physiological saline and gas into the first balloon 1, the second balloon 2 and the third balloon 3, the medical staff should also rely on the feel to operate, so that each balloon after filling and expansion just compresses the corresponding position of the inner wall of the uterine cavity. The drainage hole in the above embodiment can be either the top of the catheter group open, or a through hole opened on the wall of the catheter 9 extending out of the third balloon 3 as a drainage hole.

[0062] The utility model is a uterine cavity compression hemostasis device, which adopts the structure of the three-layer balloon, wherein the second balloon 2 is formed as an air balloon, and the gas helps to reduce the density of the entire three-layer balloon, and supports the expanded third balloon 3 to compress and stop bleeding at the upper part of the uterine cavity. At the same time, the device can also compress and stop bleeding at the lower bleeding part of the uterine cavity. When used, according to the actual bleeding situation, if the first balloon 1 cannot achieve effective compression and hemostasis after being filled and expanded, gas can continue to be injected into the second balloon 2, and the hemostasis effect can be judged by observing whether blood continues to enter the drainage device. Of course, after all three balloons are filled and expanded, they can also compress and stop bleeding at the lower bleeding part of the uterine cavity.

[0063] In order to further ensure the safety of the device, the wall thickness of the second balloon 2 should be greater than that of the first balloon 1 and the third balloon 3 .

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A uterine cavity compression hemostasis device, comprising a balloon and a catheter assembly; characterized in that: The balloon comprises a first balloon, a second balloon is sheathed on the outer side of the first balloon, the bottom of the second balloon is fixedly connected to the bottom of the first balloon, and the volume of the second balloon is greater than that of the first balloon; a third balloon is sheathed on the outer side of the second balloon, the bottom of the third balloon is fixedly connected to the bottom of the second balloon, and the volume of the third balloon is greater than that of the second balloon; The upper end of the catheter group is sealed and passes through the first balloon, the second balloon and the third balloon in sequence from bottom to top. The top of the catheter group is provided with a drainage hole and extends out of the third balloon. The lower end of the catheter group is used to communicate with an external drainage device. The catheter group includes a first liquid injection tube, a second liquid injection tube and an air injection tube. The first liquid injection tube is used to connect the first balloon with the liquid injection port of an external liquid injection device, the second liquid injection tube is used to connect the third balloon with the liquid injection port of the external liquid injection device, and the air injection tube is used to connect the second balloon with the air injection port of the external air injection device.

2. The intrauterine compression hemostasis device according to claim 1, characterized in that: A first valve that can be opened and closed is provided at one end of the first liquid injection pipe close to the external liquid injection device, a second valve that can be opened and closed is provided at one end of the second liquid injection pipe close to the external liquid injection device, and a third valve that can be opened and closed is provided at one end of the gas injection pipe close to the external gas injection device.

3. A uterine cavity compression hemostasis device according to claim 2, characterized in that: The catheter assembly further includes a drainage tube and a tube sleeve, wherein the first liquid injection tube, the second liquid injection tube, the gas injection tube and the drainage tube are all independent catheter bodies; The tube sleeve tightly wraps the first liquid injection tube, the second liquid injection tube, the gas injection tube and the drainage tube to form an integral tube bundle structure. At the position where the catheter assembly passes into the first balloon, the outer wall of the tube sleeve is sealed and fixedly connected to the first balloon. The upper end of the first injection tube is located in the first balloon, and the lower end of the first injection tube is sealed through the tube sleeve and passes out of the first balloon; The upper end of the second injection tube is located in the third balloon, and the lower end of the second injection tube passes through the tube sleeve to seal and pass out of the first balloon; The upper end of the gas injection tube is located in the second balloon, and the lower end of the gas injection tube is sealed through the sleeve and passes out of the first balloon; The upper end of the drainage tube is sealed and passes through the first balloon, the second balloon and the third balloon in sequence and then extends out of the third balloon. The drainage hole is located at the top of the drainage tube, and the lower end of the drainage tube is connected to the external drainage device.

4. The intrauterine compression hemostasis device according to claim 2, characterized in that: The catheter group comprises a catheter, the upper end of which is sealed and passes through the first balloon, the second balloon and the third balloon in sequence and then extends out of the third balloon, and the drainage hole is located at the top of the catheter; the lower end of the catheter is bifurcated to form a first branch tube, a second branch tube, a third branch tube and a fourth branch tube; The interior of the catheter is provided with a first liquid injection channel, a second liquid injection channel, a gas injection channel and a drainage channel which are not connected to each other along the length direction of the catheter; A first injection channel outlet is provided on the side wall of the catheter located in the first balloon to connect the first injection channel with the first balloon, and an inlet of the first injection channel is connected with the first branch pipe; the first injection channel is formed as the first injection pipe; A second injection channel outlet is provided on the side wall of the catheter located in the third balloon to connect the second injection channel with the third balloon, and an inlet of the second injection channel is connected with the second branch pipe; the second injection channel is formed as the second injection pipe; An outlet of a gas injection channel is provided on the side wall of the catheter located in the second balloon to connect the gas injection channel with the second balloon, and an inlet of the gas injection channel is connected with the third branch pipe; the gas injection channel is formed as the gas injection pipe; A drainage channel inlet is provided on the catheter passing through the outside of the third balloon, and the drainage channel inlet forms the drainage hole; the drainage channel outlet is connected to the fourth branch tube, and the outlet of the fourth branch tube is used to connect to the external drainage device.

5. The intrauterine compression hemostasis device according to claim 4, characterized in that: The inlets of the first branch pipe and the second branch pipe are both connected to the liquid injection port of the external liquid injection device, and the inlet of the third branch pipe is connected to the gas injection port of the external gas injection device.

6. The intrauterine compression hemostasis device according to claim 4, characterized in that: The outer diameters of the first liquid injection tube, the second liquid injection tube and the gas injection tube are 1 / 4-1 / 3 of the inner diameter of the catheter.

7. The intrauterine compression hemostasis device according to claim 1, characterized in that: The length of the upper end of the catheter assembly extending outside the third balloon is 4-7 mm.

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