A postpartum hemorrhage blood measurement kit
By designing a postpartum hemorrhage blood measurement kit, and utilizing components such as a cervical canal connecting ring and a vaginal dilator, real-time observation and precise measurement of postpartum hemorrhage were achieved, solving the problem of inaccurate measurement in existing technologies and ensuring timely treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE AFFILIATED HOSPITAL OF QINGDAO UNIV
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-30
AI Technical Summary
Existing methods for assessing postpartum hemorrhage are cumbersome to collect and have inaccurate measurements, making it difficult to detect rapid and massive bleeding in a timely manner, thus hindering effective treatment in the first instance.
A postpartum hemorrhage blood measurement kit was designed, including components such as a cervical canal connecting ring, a vaginal dilator, a blood collection head, a medical high-definition camera, and a vacuum pump. Through negative pressure adsorption, vacuum suction, and real-time monitoring, it enables dynamic observation and precise measurement of uterine bleeding.
It enables real-time observation and precise measurement of postpartum hemorrhage, allowing for early diagnosis and timely treatment of massive bleeding, thus avoiding life-threatening situations caused by inaccurate measurement.
Smart Images

Figure CN224421120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of obstetric and gynecological uterine bleeding measurement technology, specifically to a postpartum hemorrhage blood measurement kit. Background Technology
[0002] In obstetrics and gynecology, it is necessary to observe uterine bleeding in postpartum women or patients after vaginal delivery, cesarean section, and abortion to facilitate timely treatment for those experiencing significant postpartum hemorrhage. Postpartum hemorrhage is defined as vaginal bleeding exceeding 500 ml within 24 hours of delivery, commonly known as postpartum hemorrhage or postpartum hemorrhage. The incidence of postpartum hemorrhage is 2%-3% of all deliveries. However, due to significant subjective factors in measuring and collecting blood volume, the estimated blood loss is usually only half of the actual loss, thus the actual incidence is higher.
[0003] Currently, common methods for assessing postpartum hemorrhage include visual inspection, weighing, area measurement, volumetric measurement, shock index, and hemoglobin calculation.
[0004] 1. Visual estimation method: The amount of postpartum bleeding is estimated based on the clinical experience of midwives. This estimation method is simple and convenient, but its accuracy is very low, which leads to some cases of acute massive bleeding being overlooked.
[0005] 2. Weighing method: During and after childbirth, if there is vaginal bleeding, dressings and gauze are needed to compress and stop the bleeding. Weigh the used gauze and dressings, and then subtract the original weight. The difference is an approximate amount of bleeding. This estimation method also has a certain degree of error.
[0006] 3. Area method: Soak the dressing with 10ml of blood and use the area of the soaked dressing as a standard. Then, estimate the amount of postpartum bleeding by using the number of postpartum dressings and the area of the blood-soaked dressing. This method is not complicated to operate in clinical practice and has certain reference value.
[0007] 4. Volumetric method: Blood is collected using a graduated container and the volume is read directly. This is a direct measurement method. While highly accurate in a laboratory setting, its effectiveness in clinical practice may be affected by the mixing of blood with amniotic fluid or incomplete absorption of dressings.
[0008] 5. Shock Index Method: The degree of blood loss is determined by the heart rate / systolic blood pressure ratio: SI=0.5 is within the normal range; SI=1.0 indicates blood loss of approximately 500-1500ml; SI=1.5 indicates blood loss of approximately 1500-2500ml; SI≥2.0 indicates blood loss exceeding 2500ml. This index is of great clinical significance for the early identification of acute massive hemorrhage.
[0009] 6. Hemoglobin calculation method: The amount of bleeding is determined by measuring the hemoglobin level before and after childbirth. When the mother's hemoglobin drops by 10g / L, the amount of bleeding is between 400-500ml. However, since the blood is concentrated, the hemoglobin calculation method cannot accurately determine the amount of postpartum bleeding.
[0010] The above methods all have drawbacks, such as difficulty in blood collection, inaccurate measurement of blood loss, and inability to detect and treat patients with rapid and massive bleeding in a timely manner. Summary of the Invention
[0011] The purpose of this invention is to provide a postpartum hemorrhage blood measurement kit that allows for real-time observation of the dynamic situation of uterine bleeding, accurate measurement of bleeding volume, early diagnosis of postpartum hemorrhage, and timely medication treatment.
[0012] To achieve the above objectives, this utility model provides the following technical solution: a postpartum hemorrhage blood measurement kit, comprising a cervical canal connecting ring with a circular front end and a hollow inner side wall, wherein an air suction tube and an air suction nozzle are connected to the outer wall of the cervical canal connecting ring, and negative pressure suction cups with a central air suction channel are evenly distributed on the inner circumference of the cervical canal connecting ring.
[0013] The rear end of the cervical canal connecting ring is connected to a circular vaginal dilator with hollow sidewalls. A vent is provided at the rear end of the vaginal dilator. When inflated, the vaginal dilator's outer wall expands the vagina, and its inner wall forms a cylindrical blood collection and observation chamber. Multiple rows of limiting connecting pieces are evenly distributed along the circumference of the vaginal dilator between its outer and inner walls. Each row of limiting connecting pieces is spaced apart along the length of the vaginal dilator. Preferably, the length of the blood collection and observation chamber is greater than the length of the vagina.
[0014] The vaginal dilator is provided with a sealing base plate at its rear end; rectangular or arc-shaped connecting pieces are symmetrically arranged on both sides of the rear end face of the sealing base plate; a support plate is provided between the sealing base plate and the connecting pieces;
[0015] The lower part of the support plate is provided with an inverted frustum-shaped collection hole that is thicker at the front and thinner at the back. The middle or upper right end of the support plate is provided with an observation hole, and the middle left end of the support plate is provided with a processing hole.
[0016] The collection hole contains a hollow blood collection head that extends into the blood collection observation chamber. The front face of the blood collection head is arc-shaped and has evenly distributed guide holes. The middle part of the blood collection head is an inverted frustum-shaped cone, wider at the front and narrower at the back, designed to work with the collection hole. A collection tube located behind the support plate is threaded to the outer rear end of the blood collection head. A positioning nut is threaded to the outer side of the collection tube. The rear end of the collection tube is connected to a blood measuring container via a connecting hose. The outer wall of the blood measuring container has graduation lines.
[0017] An observation operation tube is inserted into the observation hole. The front end of the observation operation tube extends into the blood collection observation chamber and a medical high-definition camera is provided at the front end. The high-definition camera is connected to a medical monitor through an observation signal line provided inside the observation operation tube.
[0018] A sealing plug is installed inside the processing hole.
[0019] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0020] The upper end of the blood measuring container is connected to a vacuum pump via an air extraction pipe.
[0021] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0022] The blood measuring container is equipped with a liquid level measuring sensor probe at positions 400ml and / or 500ml on its inner wall. The liquid level measuring sensor probe is connected to the medical monitor via a liquid level signal line.
[0023] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0024] A bleeding warning tube is inserted into the center of the sealing plug. A liquid level rise sensor probe is provided at the front end of the bleeding warning tube. The liquid level rise sensor probe is connected to the medical monitor through the liquid level signal line located inside the bleeding warning tube.
[0025] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0026] An observation tube operation cap is provided at the rear end of the observation operation tube.
[0027] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0028] The rear end of the bleeding warning tube is equipped with a warning tube operation cap.
[0029] To better achieve the above-mentioned objectives, this utility model may further include the following technical solutions:
[0030] The support plate has an underwear sleeve on its rear outer side, and the underwear has through holes at corresponding positions that correspond to and cooperate with the collection hole, the observation hole and the processing hole respectively.
[0031] The general instructions for using the above-mentioned postpartum hemorrhage blood measurement kit are as follows:
[0032] Insert the blood collection head into the vaginal dilator beforehand, and then let its rear end protrude from the corresponding through hole in the sealing base plate;
[0033] After a cesarean section, vaginal delivery, or abortion, the cervical canal connecting ring is attached to the outer wall of the cervical canal up to the vaginal fornix. The suction nozzle is opened and connected to the suction pump. The suction pump is started to extract the air from inside the cervical canal connecting ring. The negative pressure suction cup is then attached to the outer wall of the cervical canal. The suction nozzle is then separated from the suction pump and closed at the same time. The suction pump is then turned off.
[0034] Insert the two ends of the support plate into the connecting pieces on both sides and the sealing base plate respectively. Extend the rear end of the blood collection head from the collection hole of the support plate and connect it to the collection tube at the rear end. Then screw the positioning nut to the front end and press the inverted frustum-shaped middle part of the blood collection head against the side wall of the collection hole to achieve a sealing and positioning function.
[0035] Then, the patient puts on the underwear. The corresponding holes of the underwear correspond one-to-one with the collection hole, observation hole and treatment hole. This can better limit the position of the vaginal dilator and the cervical canal connecting ring, and prevent the vaginal dilator and the cervical canal connecting ring from falling off during the process of moving the mother or patient back to the ward after surgery.
[0036] Then, insert the sealing plug and bleeding warning tube into the treatment port, connecting the injection treatment and rapid bleeding warning parts; connect the collection tube to the connecting hose, connecting the blood collection part; insert the observation operation tube into the observation port, connecting the observation part; you can then begin observing and collecting uterine bleeding from the parturient or patient; during the process of moving the parturient or patient back to the ward, the medical monitor, bleeding warning tube, connecting hose, observation operation tube, etc., can be disconnected or removed, and the corresponding holes can be sealed with appropriate sealing plugs, and the end of the collection tube can be sealed with appropriate sealing caps, to facilitate transportation and / or prevent the medical monitor from slipping off the moving bed and being damaged; reconnect all tubes after the patient arrives at the ward;
[0037] A high-definition medical camera can be used to easily observe the blood collection and observation cavity during uterine bleeding; for example, changes in the cervix, whether blood is flowing out of the cervix, the speed of bleeding, and a rough estimate of the amount of bleeding.
[0038] After uterine bleeding enters the blood collection and observation chamber, the blood can flow from the blood collection head, collection tube, and connecting tubing into the blood measuring container; the amount of bleeding entering the blood measuring container can be easily observed;
[0039] When blood clots are observed in the blood collection observation chamber, or when the blood flow is obstructed or stagnant, the vacuum pump is activated to remove the blood clots, ensuring that the blood in the blood collection observation chamber flows into the blood metering container in a timely manner.
[0040] When a bulge is observed in the patient's abdomen from the outside, and the cervix is closed or blocked as observed by the internal high-definition camera, it is considered that the blood or blood clots in the uterus cannot be discharged smoothly. The continuous bleeding of blood and / or blood clots in the uterus is causing the uterus to become distended. Loosen the positioning nut to the rear end of the collection tube, hold the collection tube, and with the help of the high-definition camera and medical monitor, insert the blood collection head into the uterus. Start the vacuum pump to draw the blood or blood clots in the uterus under negative pressure until no blood or blood clots flow out of the transparent collection tube and connecting tubing.
[0041] When bleeding is observed through a high-definition camera due to poor uterine contraction or cervical non-contraction, remove the sealing plug, insert the injection needle through the treatment hole, and inject a small amount of oxytocin or oxytocin into the outer wall of the cervix.
[0042] When bleeding is rapid, blood quickly enters the blood collection and observation chamber and cannot be drained quickly, causing the liquid level to rise rapidly to the position of the liquid level rise sensor probe. The medical monitor will then issue an audible alarm to remind the mother or patient of rapid or massive bleeding, enabling timely treatment and avoiding situations where massive bleeding cannot be detected and treated in time using traditional measurement methods, which could lead to life-threatening situations for the mother or patient.
[0043] When the blood in the blood metering tank reaches 400ml and / or 500ml, the liquid level sensor probe sends a signal to the medical monitor, which then quickly sounds an alarm to remind the mother or patient that the bleeding has reached a point where blood transfusion or other treatment is needed.
[0044] When it is necessary to observe changes in cervical dilation, insert the blood collection head into the uterus to aspirate blood or blood clots, or inject medication into the cervical canal, the vent at the rear of the vaginal dilator can be connected to an air pump. The air pump is activated, inflating the vaginal dilator with air. The inflated outer wall of the dilator expands outwards, dilating the vagina. The inner wall, due to inflation, straightens, forming a cylindrical blood collection and observation chamber. The vent is then disconnected from the air pump and sealed, and the air pump is turned off. This allows for convenient performance of the above operations. When not performing these operations, the vaginal dilator can be left uninflated or only inflated to avoid prolonged outward expansion of the vaginal wall by the outer wall of the dilator, which could cause discomfort.
[0045] In summary, the advantages of this utility model are as follows: The postpartum hemorrhage blood measurement kit of this utility model is easy to use and can monitor the bleeding inside the uterine cavity and changes in the cervix in real time. It can collect and measure all uterine bleeding, and the bleeding situation and blood measurement are accurate. When there are situations such as poor blood flow, blood not being able to be discharged smoothly from the uterus, uterine bleeding approaching or reaching dangerous levels, poor or no uterine contraction, or rapid massive uterine bleeding, it can provide immediate treatment and rapid rescue for the mother or patient, and can effectively avoid situations that endanger the patient's life. Attached Figure Description
[0046] Figure 1 This is a schematic diagram of the overall structure of the embodiment;
[0047] Figure 2 for Figure 1 A schematic diagram of the AA-direction cross-section structure;
[0048] Figure 3 for Figure 1 Schematic diagram of the BB-direction cross-section structure;
[0049] Figure 4 This is a structural schematic diagram of the support plate;
[0050] Figure 5 This is a schematic diagram of the structure of underwear.
[0051] 1. Cervical canal connecting ring; 2. Negative pressure suction cup; 3. Suction tube; 4. Vaginal dilator; 5. High-definition camera; 6. Observation and operation tube; 7. Sealing base plate; 8. Suction connector; 9. Support plate; 10. Connecting piece; 11. Observation tube operation cap; 12. Observation signal line; 13. Medical monitor; 14. Liquid level signal line; 15. Suction tube; 16. Vacuum pump; 17. Liquid level metering sensor probe; 18. Blood metering container; 19. Scale lines; 20. Connecting hose; 21. Collection tube; 22. Positioning nut; 23. Blood collection head; 24. Drainage hole; 25. Warning tube operating cap; 26. Bleeding warning tube; 27. Sealing plug; 28. Vent connection nozzle; 29. Liquid level rise sensor probe; 30. Blood collection observation chamber; 31. Collection hole; 32. Processing hole; 33. Observation hole; 34. Limiting connection piece; 35. Underwear. Detailed Implementation
[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0053] Example 1: As Figures 1-4 As shown, this utility model embodiment discloses a postpartum hemorrhage blood measurement kit, including a cervical canal connecting ring 1 with a circular front end and a hollow inner side wall. An air suction tube 3 and an air suction nozzle 8 are connected to the outer wall of the cervical canal connecting ring 1. Negative pressure suction cups 2 with a central air suction channel are evenly distributed on the inner circumference of the cervical canal connecting ring 1.
[0054] The rear end of the cervical canal connecting ring 1 is connected to a circular vaginal dilator 4 with a hollow inner side wall. The rear end of the vaginal dilator 4 is provided with a venting nozzle 28. After the vaginal dilator 4 is inflated, its outer wall can expand the vagina and its inner wall can form a cylindrical blood collection and observation cavity 30 that is thicker at the front and thinner at the back. There are 16 rows of limiting connecting pieces 34 evenly distributed along the circumference of the vaginal dilator 4 between the outer wall and the inner wall of the vaginal dilator 4. Each row of limiting connecting pieces 34 is spaced apart in the longitudinal direction of the vaginal dilator 4. The length of the blood collection and observation cavity 30 is greater than the length of the vagina.
[0055] The rear end of the vaginal dilator 4 is provided with a sealing base plate 7; arc-shaped connecting pieces 10 are symmetrically arranged on both sides of the rear end face of the sealing base plate 7; a support plate 9 is provided between the sealing base plate 7 and the connecting pieces 10.
[0056] The lower part of the support plate 9 is provided with an inverted truncated cone-shaped collection hole 31 that is thicker at the front and thinner at the back. The upper right end of the support plate 9 is provided with an observation hole 33, and the middle left end of the support plate 9 is provided with a processing hole 32.
[0057] A hollow blood collection head 23 is provided inside the collection hole 31, with its front end extending into the blood collection observation chamber 30. The front end face of the blood collection head 23 is arc-shaped and has evenly distributed guide holes 24. The middle part of the blood collection head 23 is an inverted frustum-shaped cone that is thicker at the front and thinner at the back, which is used in conjunction with the collection hole 31. The outer rear end of the blood collection head 23 is threadedly connected to a collection tube 21 located behind the support plate 9. The outer side of the collection tube 21 is threadedly connected to a positioning nut 22. The rear end of the collection tube 21 is connected to a blood measuring container 18 through a connecting hose 20. The outer wall of the blood measuring container 18 is provided with scale lines 19.
[0058] An observation operation tube 6 is inserted into the observation hole 33. The front end of the observation operation tube 6 extends into the blood collection observation cavity 30 and a medical high-definition camera 5 is provided at the front end. The high-definition camera 5 is connected to a medical monitor 13 through an observation signal line 12 provided inside the observation operation tube 6.
[0059] A sealing plug 27 is provided inside the processing hole 32.
[0060] The upper end of the blood measuring tank 18 is connected to a vacuum pump 16 via an air extraction pipe 15.
[0061] The blood measuring container 18 has level measuring sensor probes 17 installed at positions 400ML and 500ML on its inner wall. The level measuring sensor probes 17 are connected to the medical monitor 13 via level signal lines 14.
[0062] A bleeding warning tube 26 is inserted into the center of the sealing plug 27. A liquid level rise sensor probe 29 is provided at the front end of the bleeding warning tube 26. The liquid level rise sensor probe 29 is connected to a medical monitor 13 through a liquid level signal line 14 located inside the bleeding warning tube 26.
[0063] An observation tube operation cap 11 is provided at the rear end of the observation operation tube 6.
[0064] The rear end of the bleeding warning tube 26 is provided with a warning tube operation cap 25.
[0065] Example 2: As Figures 1-5 As shown, this utility model embodiment discloses a postpartum hemorrhage blood measurement kit, including a cervical canal connecting ring 1 with a circular front end and a hollow inner side wall. An air suction tube 3 and an air suction nozzle 8 are connected to the outer wall of the cervical canal connecting ring 1. Negative pressure suction cups 2 with a central air suction channel are evenly distributed on the inner circumference of the cervical canal connecting ring 1.
[0066] The rear end of the cervical canal connecting ring 1 is connected to a circular vaginal dilator 4 with a hollow inner side wall. The rear end of the vaginal dilator 4 is provided with a venting nozzle 28. After the vaginal dilator 4 is inflated, its outer wall can expand the vagina and its inner wall can form a cylindrical blood collection and observation cavity 30 that is thicker at the front and thinner at the back. There are 16 rows of limiting connecting pieces 34 evenly distributed along the circumference of the vaginal dilator 4 between the outer wall and the inner wall of the vaginal dilator 4. Each row of limiting connecting pieces 34 is spaced apart in the longitudinal direction of the vaginal dilator 4. The length of the blood collection and observation cavity 30 is greater than the length of the vagina.
[0067] The rear end of the vaginal dilator 4 is provided with a sealing base plate 7; arc-shaped connecting pieces 10 are symmetrically arranged on both sides of the rear end face of the sealing base plate 7; a support plate 9 is provided between the sealing base plate 7 and the connecting pieces 10.
[0068] The lower part of the support plate 9 is provided with an inverted truncated cone-shaped collection hole 31 that is thicker at the front and thinner at the back. The upper right end of the support plate 9 is provided with an observation hole 33, and the middle left end of the support plate 9 is provided with a processing hole 32.
[0069] A hollow blood collection head 23 is provided inside the collection hole 31, with its front end extending into the blood collection observation chamber 30. The front end face of the blood collection head 23 is arc-shaped and has evenly distributed guide holes 24. The middle part of the blood collection head 23 is an inverted frustum-shaped cone that is thicker at the front and thinner at the back, which is used in conjunction with the collection hole 31. The outer rear end of the blood collection head 23 is threadedly connected to a collection tube 21 located behind the support plate 9. The outer side of the collection tube 21 is threadedly connected to a positioning nut 22. The rear end of the collection tube 21 is connected to a blood measuring container 18 through a connecting hose 20. The outer wall of the blood measuring container 18 is provided with scale lines 19.
[0070] An observation operation tube 6 is inserted into the observation hole 33. The front end of the observation operation tube 6 extends into the blood collection observation cavity 30 and a medical high-definition camera 5 is provided at the front end. The high-definition camera 5 is connected to a medical monitor 13 through an observation signal line 12 provided inside the observation operation tube 6.
[0071] A sealing plug 27 is provided inside the processing hole 32.
[0072] The upper end of the blood measuring tank 18 is connected to a vacuum pump 16 via an air extraction pipe 15.
[0073] The blood measuring container 18 has level measuring sensor probes 17 installed at positions 400ML and 500ML on its inner wall. The level measuring sensor probes 17 are connected to the medical monitor 13 via level signal lines 14.
[0074] A bleeding warning tube 26 is inserted into the center of the sealing plug 27. A liquid level rise sensor probe 29 is provided at the front end of the bleeding warning tube 26. The liquid level rise sensor probe 29 is connected to a medical monitor 13 through a liquid level signal line 14 located inside the bleeding warning tube 26.
[0075] An observation tube operation cap 11 is provided at the rear end of the observation operation tube 6.
[0076] The rear end of the bleeding warning tube 26 is provided with a warning tube operation cap 25.
[0077] The support plate 9 is fitted with an underwear 35 on the outer rear end. The underwear 35 has through holes that correspond to the collection hole 31, the observation hole 33 and the processing hole 32 respectively.
Claims
1. A postpartum hemorrhage blood measurement kit, characterized in that, The device includes a cervical canal connecting ring with a circular front end and hollow interior sidewalls. An air suction tube and an air suction nozzle are connected to the outer wall of the cervical canal connecting ring. Negative pressure suction cups with central air suction channels are evenly distributed on the inner circumference of the cervical canal connecting ring. The rear end of the cervical canal connecting ring is connected to a circular vaginal dilator tube with a hollow inner side wall. The rear end of the vaginal dilator tube is provided with a venting nozzle. After the vaginal dilator tube is inflated, its outer wall can expand the vagina and its inner wall can form a cylindrical blood collection and observation cavity. Multiple rows of limiting connecting pieces are provided between the outer wall and the inner wall of the vaginal dilator tube, evenly distributed along the circumference of the vaginal dilator tube. Each row of limiting connecting pieces is spaced apart along the length of the vaginal dilator tube. The vaginal dilator is provided with a sealing base plate at its rear end; connecting pieces are symmetrically arranged on both sides of the rear end face of the sealing base plate; a support plate is provided between the sealing base plate and the connecting pieces; The lower part of the support plate is provided with an inverted frustum-shaped collection hole that is thicker at the front and thinner at the back. The middle or upper right end of the support plate is provided with an observation hole, and the middle left end of the support plate is provided with a processing hole. The collection hole contains a hollow blood collection head that extends into the blood collection observation chamber. The front face of the blood collection head is arc-shaped and has evenly distributed guide holes. The middle part of the blood collection head is an inverted frustum-shaped cone, wider at the front and narrower at the back, designed to work with the collection hole. A collection tube located behind the support plate is threaded to the outer rear end of the blood collection head. A positioning nut is threaded to the outer side of the collection tube. The rear end of the collection tube is connected to a blood measuring container via a connecting hose. The outer wall of the blood measuring container has graduation lines. An observation operation tube is inserted into the observation hole. The front end of the observation operation tube extends into the blood collection observation chamber and a medical high-definition camera is provided at the front end. The high-definition camera is connected to a medical monitor through an observation signal line provided inside the observation operation tube. A sealing plug is installed inside the processing hole.
2. The postpartum hemorrhage blood measurement kit according to claim 1, characterized in that, The upper end of the blood measuring container is connected to a vacuum pump via an air extraction pipe.
3. The postpartum hemorrhage blood measurement kit according to claim 2, characterized in that, The blood measuring container is equipped with a liquid level measuring sensor probe at positions 400ml and / or 500ml on its inner wall. The liquid level measuring sensor probe is connected to the medical monitor via a liquid level signal line.
4. The postpartum hemorrhage blood measurement kit according to claim 3, characterized in that, A bleeding warning tube is inserted into the center of the sealing plug. A liquid level rise sensor probe is provided at the front end of the bleeding warning tube. The liquid level rise sensor probe is connected to the medical monitor through the liquid level signal line located inside the bleeding warning tube.
5. The postpartum hemorrhage blood measurement kit according to claim 4, characterized in that, An observation tube operation cap is provided at the rear end of the observation operation tube.
6. The postpartum hemorrhage blood measurement kit according to claim 5, characterized in that, The rear end of the bleeding warning tube is equipped with a warning tube operation cap.
7. The postpartum hemorrhage blood measurement kit according to any one of claims 1-6, characterized in that, An underpants are fitted onto the outer rear end of the support plate, and the underpants are provided with through holes that correspond to and cooperate with the collection hole, the observation hole and the processing hole respectively.