Disposable blood collecting and metering bag for parturient delivery

Abstract

The invention discloses a disposable delivery puerpera blood collecting and metering bag, and belongs to the technical field of medical instruments, the disposable delivery puerpera blood collecting and metering bag comprises a metering bag, the top of the metering bag is provided with a connecting pipe used for conveying blood, the end of the connecting pipe is connected with a blood inlet used for blood inflow, and the end of the connecting pipe is provided with a blood outlet. A flow guide base plate used for blood flow guide is fixedly installed at the bottom of the blood inlet, and an arc-shaped face is arranged on the upper surface of the flow guide base plate. According to the disposable delivery puerpera blood collecting and metering bag, the flow guide base plate is arranged so that blood can be guided when the amount of bleeding is small, the blood can be conveyed into the metering bag through the inclined face of the flow guide base plate to be collected, and when the amount of bleeding is large, the metering bag can be in butt joint with the lower body of a puerpera through the blood receiving opening; blood is collected through cooperation of the blood receiving opening, the second telescopic pipe and other parts, and the measuring bag can conveniently collect the blood through different methods according to the amount of the blood.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a disposable blood collection and measurement bag for postpartum women. Background Technology

[0002] Childbirth, commonly known as giving birth, specifically refers to the period and process during which a fetus separates from the mother's body and becomes an independent individual. Common complications during childbirth include uterine rupture and postpartum hemorrhage. For postpartum hemorrhage, doctors need to accurately determine the amount of blood lost by the mother in order to provide effective treatment. Generally, when a pregnant woman experiences postpartum hemorrhage, blood is collected using a blood collection bag.

[0003] Patent CN117379271A discloses a disposable postpartum blood collection and measuring bag, relating to the field of medical device technology. The bag includes a measuring bag body with a connecting frame at the top. Two ropes are fixedly connected to the left and right sides of the measuring bag body near the top. Through the cooperation of the measuring bag body, scale, connecting elastic plate, ropes, and other structures, the connecting frame can be placed above the measuring bag body, and the ropes can be tied to the surface of the fixing post, thus installing the measuring bag body. When blood enters the measuring bag body, the scale can measure the blood volume. After the blood has been left for a period of time, it can be moved... The scale on the back measures the stratified plasma and blood cells. After collection, the movable frame is placed on top of the measuring bag body. The connecting elastic plate, along with the second Velcro female and second Velcro male, limits the movable frame, sealing the top of the measuring bag body. When using this device, the limiting frame needs to be placed around the mother's legs to collect blood. This is rather cumbersome, and the limiting frame cannot fit tightly against the mother's body, which can lead to blood leakage and inaccurate blood collection. Furthermore, the measuring bag needs to be replaced when it is full, and blood is prone to leakage during replacement. Summary of the Invention

[0004] The purpose of this invention is to provide a disposable postpartum blood collection and metering bag. By combining the blood inlet with the drainage pad, different methods can be used to collect blood according to the amount of postpartum bleeding. When the metering bag is full, the blood can be temporarily stored through a temporary corrugated storage tube to avoid blood leakage when the metering bag is replaced.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a disposable postpartum blood collection and metering bag, comprising: a metering bag, wherein the top of the metering bag is provided with a connecting tube for conveying blood, the end of the connecting tube is connected to a blood inlet for blood inflow, and a flow guide plate for guiding blood flow is fixedly installed at the bottom of the blood inlet, and the upper surface of the flow guide plate is provided with an arc-shaped surface; The measuring bag includes a scale for observing blood volume, a bag opening for blood intake, and a movable cap for closing the bag opening; The measuring bag is fixedly equipped with a scale, and the top of the measuring bag is fixedly equipped with a bag opening. A movable bottle cap is movably installed on the surface of the bag opening via an elastic band. The bag opening includes a slot for connecting the connecting tube and a locking block for engaging with the slot; Two slots are symmetrically formed on the surface of the bag opening, and a locking block is engaged inside the slot; The connecting tube includes a first telescopic tube for adjusting the length, and a temporary corrugated storage tube for temporarily storing blood. A first telescopic tube is installed on each of the surfaces near both ends of the connecting pipe, and a temporary corrugated storage tube is installed at the end of the connecting pipe. The temporary corrugated storage tube includes a docking port for guiding blood flow and a connection port for connecting to the docking port. The temporary corrugated storage tube has a mating interface fixedly installed on the top inner side near the connecting tube, and a connecting port is fixedly installed through the bottom of the temporary corrugated storage tube. The blood inlet includes a blood collection port that can connect to the vulva when there is a large amount of bleeding; The blood inlet is located on the side of the blood inlet; The blood inlet includes a protective pad for protection and deformation, and a second telescopic tube for extending the position of the blood inlet; A protective pad is connected to the inlet of the blood inlet, and the top end of a second telescopic tube is connected to the outlet of the blood inlet. The end of the second telescopic tube is connected to the inside of the blood inlet. The flow guide plate includes a baffle for blocking blood, a water-blocking groove for preventing blood from spilling, and a fixing rope for securing the flow guide plate. The guide plate has baffles on both the left and right sides, a water-blocking groove on the upper surface, and a fixing rope on the bottom.

[0006] Preferably, the bag opening further includes a slot for connection and an elastic plate for securing the card block; The outer surface of the bag opening is movably connected to a slot, and an elastic plate is fixedly connected to the side of the card block. The end of the elastic plate is fixedly connected to the side of the slot.

[0007] Preferably, the temporary corrugated storage tube further includes an annular notch and a protrusion for connecting the connection port to the docking port; The bottom of the connector has two symmetrical annular notches, and a protrusion is engaged inside the annular notch. The protrusion is fixedly installed on the inner wall of the connector.

[0008] Preferably, the temporary corrugated storage tube further includes a connector for replacing the metering bag; A connector is fixedly installed at the bottom of the connection port, and a slot is fixedly installed at the bottom of the connector.

[0009] Preferably, the temporary corrugated storage tube further includes a valve plate for closing the joint, and a rotating plate for rotating the valve plate; The valve plate is rotatably connected inside the joint via a rotating shaft, and the rotating plate is fixedly installed at the end of the rotating shaft of the valve plate.

[0010] Preferably, the blood collection port further includes a first restraint rope and a second restraint rope for binding the legs, and an arc-shaped groove for mounting the first restraint rope and the second restraint rope. The top and bottom of the blood collection port are provided with arc-shaped grooves, and the two ends of the arc-shaped grooves are respectively connected to a first restraining rope and a second restraining rope.

[0011] Preferably, the blood collection port further includes an upper Velcro and a lower Velcro for connecting the first restraint rope and the second restraint rope to each other; The surface of the first restraint rope near its end is connected to an upper Velcro fastener, and the surface of the second restraint rope near its end is connected to a lower Velcro fastener.

[0012] Preferably, the blood inlet further includes a mounting groove for placing the blood inlet, and a first magnet and a second magnet for fixing the blood inlet; The flow guide plate has an installation groove on its surface near the blood inlet, a second magnet is installed inside the installation groove, and a first magnet is installed on the surface of the blood inlet near the second magnet.

[0013] Preferably, the water-retaining trough further includes a return pipe for guiding blood; The upper surface of the flow guide plate is inclined and has a return pipe, the end of which is connected to the inside of the water-blocking groove.

[0014] Compared with the prior art, the beneficial effect of the present invention is: the disposable postpartum blood collection and metering bag.

[0015] 1. Equipped with a flow guide plate, it can guide blood when the bleeding is small, allowing the blood to be transported through the inclined surface of the flow guide plate into the inside of the metering bag for collection. When the bleeding is large, it can be connected to the mother's lower body through the blood inlet, allowing the blood to be collected through the blood inlet and the cooperation of the second telescopic tube and other parts. This allows the metering bag to collect blood using different methods depending on the amount of bleeding. 2. When the measuring bag is full of blood, the rotating plate can be rotated to seal the inside of the valve plate. Pulling both ends of the temporary corrugated storage tube can cause the interface and the connection port to move in opposite directions. After the interface and the connection port are separated, the temporary corrugated storage tube can be unfolded. This allows the temporary corrugated storage tube to temporarily store blood when the measuring bag is full, preventing blood from spilling when the measuring bag is replaced. 3. The blood collection port can be moved by extending the second telescopic tube. When the blood collection port can be moved to the mother's lower body, it can come into contact with the skin through the protective pad. The protective pad can better fit the skin through its own rubber material, and can also avoid damage to the skin. After the protective pad is in contact with the skin, it can be tied to the legs with the first restraint rope and the second restraint rope to make the blood collection port more convenient to use. 4. The flow guide plate can be fixed to the medical bed with a fixing rope. The baffle can block blood from flowing onto the medical bed and also guide the blood to flow into the blood inlet. When the blood flows to the other side of the curved surface of the flow guide plate, the water-blocking groove can block and collect the blood. After collection, the blood can be transported to the flow guide plate's flow slope through the return pipe, which facilitates blood collection, reduces spillage, and makes blood collection more accurate. 5. When the blood collection bag is full, the curved surface of the elastic plate can be pulled outward. When the elastic plate is pulled, it can cause the locking block to separate from the locking slot. At this time, the bag opening can be pulled out of the slot, making it easy to quickly disassemble and replace the measurement bag. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 2 of the present invention; Figure 3 This is a three-dimensional view of the structure of Embodiment 2 of the present invention; Figure 4 This is a front view structural diagram of Embodiment 1 of the present invention; Figure 5 This is a side view structural diagram of Embodiment 2 of the present invention; Figure 6 This is a three-dimensional cross-sectional structural diagram of Embodiment 1 of the present invention; Figure 7This is a side view schematic diagram of the blood inlet structure of the present invention; Figure 8 This is the present invention. Figure 6 Enlarged structural diagram of section A; Figure 9 This is the present invention. Figure 6 Enlarged structural diagram of section B.

[0017] In the picture: 100. Measuring bags; 110. Ruler; 120. Removable bottle cap; 130. Pocket opening; 131. Card slot; 132. Elastic plate; 133. Card block; 134. Slot; 200. Connecting pipe; 210. First telescopic tube; 220. Temporary corrugated storage tube; 221. Butt joint; 222. Annular notch; 223. Connection port; 224. Protrusion; 225. Connector; 226. Rotating plate; 227. Valve plate; 300. Blood entrance; 310. Blood inlet; 311. Protective pad; 312. Second telescopic tube; 313. Arc-shaped groove; 314. First restraint rope; 315. Upper Velcro; 316. Second restraint rope; 317. Lower Velcro; 318. First magnet; 319. Mounting slot; 3110. Second magnet; 400. Deflector plate; 410. Stop bar; 420. Water retaining trough; 421. Return pipe; 430. Fixing rope. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or vehicle that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or vehicles.

[0020] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "level," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Example 1: Please refer to Figures 1-6 , Figure 8 and Figure 9 A disposable postpartum blood collection and metering bag includes: a metering bag 100, a connecting tube 200 for conveying blood is provided at the top of the metering bag 100, a blood inlet 300 for blood inflow is connected to the end of the connecting tube 200, and a flow guide plate 400 for blood flow is fixedly installed at the bottom of the blood inlet 300, and the upper surface of the flow guide plate 400 is provided with an arc-shaped surface. It should be understood that the flow guide plate 400 is placed and fixed at the end of the medical bed, and then the metering bag 100 is connected to the end of the connecting tube 200. After the metering bag 100 is installed, the mother can lie on the medical bed with her buttocks on the arc-shaped convex surface of the flow guide plate 400. During childbirth, the blood flows onto the flow guide plate 400, and the inclined surface of the flow guide plate 400 guides the blood into the blood inlet 300. After the blood enters the blood inlet 300, it can be transported to the inside of the metering bag 100 through the connecting tube 200.

[0024] like Figures 1-6 , Figure 8 As shown, the measuring bag 100 includes a scale 110 for observing blood volume, a bag opening 130 for blood intake, and a movable cap 120 for closing the bag opening 130. The scale 110 is fixedly installed on the measuring bag 100, the bag opening 130 is fixedly installed on the top of the measuring bag 100, and the movable cap 120 is movably installed on the surface of the bag opening 130 via an elastic band. It is conceivable that blood can enter the measuring bag 100 through the bag opening 130. After the blood enters the measuring bag 100, medical staff can observe it through the scale 110. When the blood inside the measuring bag 100 reaches the specified volume, the bag opening 130 can be sealed through the movable cap 120.

[0025] like Figures 1-3 , Figure 5 , Figure 6 and Figure 8 As shown, the bag opening 130 includes a slot 131 for connecting the connecting tube 200 and a locking block 133 for engaging with the slot 131. Two slots 131 are symmetrically opened on the surface of the bag opening 130. The locking block 133 is engaged inside the slot 131. The bag opening 130 also includes a slot 134 for connection and an elastic plate 132 for fixing the locking block 133. The slot 134 is movably connected to the outer surface of the bag opening 130. The elastic plate 132 is fixedly connected to the side of the locking block 133. The end of the elastic plate 132 is fixedly connected to the side of the slot 134. It is worth noting that when the bag opening 130 is inserted into the slot 134, it can press the inclined surface of the card block 133. When the card block 133 is pressed, it can press the elastic plate 132. When the elastic plate 132 is pressed, it can deform. When the bag opening 130 is fully inserted into the slot 134, the bag opening 130 will drive the card groove 131 to move to the side of the card block 133. At this time, the card block 133 can be reset by the elastic force of the elastic plate 132. After the card block 133 is reset, it can be engaged with the card groove 131. When the metering bag 100 is finished and needs to be disassembled, the arc-shaped surface of the elastic plate 132 can be pulled outward. When the elastic plate 132 is pulled, it can cause the locking block 133 to separate from the locking groove 131. At this time, the bag opening 130 can be pulled out of the slot 134.

[0026] like Figures 1-6 , Figure 8 As shown, the connecting tube 200 includes a first telescopic tube 210 for adjusting the length and a temporary corrugated storage tube 220 for temporarily storing blood. A first telescopic tube 210 is installed on each of the surfaces of the connecting tube 200 near both ends, and a temporary corrugated storage tube 220 is installed at the end of the connecting tube 200. It should be noted that the first telescopic tube 210 can be extended by pulling the connecting tube 200, thereby increasing the length of the connecting tube 200 and allowing the measuring bag 100 to be placed more easily. When the measuring bag 100 is full of blood, it needs to be replaced. When replacing the measuring bag 100, it can be extended by pulling both ends of the temporary corrugated storage tube 220. After the temporary corrugated storage tube 220 is extended, it can temporarily store blood.

[0027] like Figures 1-6 , Figure 8 As shown, the temporary corrugated storage tube 220 includes a docking interface 221 for guiding blood flow and a connection port 223 for connecting to the docking interface 221. The docking interface 221 is fixedly installed on the top inner side of the temporary corrugated storage tube 220 near the connecting tube 200, and the connection port 223 is fixedly installed through the bottom of the temporary corrugated storage tube 220. It should be understood that before use, the interface 221 will be connected directly to the connection port 223 through its interior, so that blood can be delivered directly to the inside of the metering bag 100 without passing through the temporary corrugated storage tube 220, thereby avoiding blood residue on the inner wall of the temporary corrugated storage tube 220.

[0028] like Figures 1-3 , Figure 5 , Figure 7 and Figure 9 As shown, the blood inlet 300 includes a blood collection port 310 for docking with the vulva when the bleeding volume is large. The blood collection port 310 is located on the side of the blood inlet 300. It is conceivable that when the bleeding of the mother is heavy, there may be a spurting situation. At this time, the blood collection port 310 can be put on the lower part of the mother so that the blood can flow directly into the blood collection port 310, and thus it can be better collected when the bleeding is heavy. like Figures 1-3 , Figure 5 , Figure 7 and Figure 9As shown, the blood inlet 310 includes a protective pad 311 for protection and deformation, and a second telescopic tube 312 for extending the position of the blood inlet 310. The protective pad 311 is connected to the inlet of the blood inlet 310, and the top end of the second telescopic tube 312 is connected to the outlet of the blood inlet 310. The end of the second telescopic tube 312 is connected to the inside of the blood inlet 300. It is important to understand that pulling the blood collection port 310 can pull the second telescopic tube 312. When the second telescopic tube 312 is pulled, it can extend. When the second telescopic tube 312 extends, the blood collection port 310 can drive the protective pad 311 to come into contact with the mother's lower body. The protective pad 311 can better fit the skin through its own rubber material, and can also avoid harming the skin.

[0029] like Figures 1-6 , Figure 9 As shown, the flow guide plate 400 includes a baffle 410 for blocking blood, a water-blocking groove 420 for preventing blood from spilling, and a fixing rope 430 for fixing the flow guide plate 400. The baffle 410 is connected to both the left and right sides of the flow guide plate 400, the water-blocking groove 420 is provided on the upper surface of the flow guide plate 400, and the fixing rope 430 is connected to the bottom of the flow guide plate 400. It is conceivable that the flow guide plate 400 can be fixedly tied to the medical bed by the fixing rope 430, the baffle 410 can block the blood to prevent it from flowing onto the medical bed, and can also guide the blood to flow into the blood inlet 300. When the blood flows to the other side of the curved surface of the flow guide plate 400, the water blocking groove 420 can block and collect the blood.

[0030] like Figures 2-5 , Figure 6 As shown, the temporary corrugated storage tube 220 also includes an annular notch 222 and a protrusion 224 for connecting the connection port 223 to the docking port 221. Two annular notches 222 are symmetrically opened at the bottom end of the connection port 223. The protrusion 224 is engaged inside the annular notch 222 and is fixedly installed on the inner wall of the connection port 223. It is worth noting that pulling both ends of the temporary corrugated storage tube 220 can cause the interface 221 and the connection port 223 to move in opposite directions. When the interface 221 and the connection port 223 move in opposite directions, they can cause the annular notch 222 and the protrusion 224 to move in opposite directions. When the protrusion 224 moves, it can deform through its own plastic material. After the protrusion 224 is deformed, it can separate from the annular notch 222. The separation of the protrusion 224 from the annular notch 222 can allow the temporary corrugated storage tube 220 to unfold.

[0031] like Figures 1-6 , Figure 8As shown, the temporary corrugated storage tube 220 also includes a connector 225 for replacing the metering bag 100. The connector 225 is fixedly installed at the bottom end of the connection port 223, and a slot 134 is fixedly installed at the bottom end of the connector 225. It is conceivable that blood can be delivered to the interior of connector 225 through interface 221 and connector 223, and then delivered to the interior of metering bag 100 through bag opening 130 inside slot 134 at the bottom of connector 225.

[0032] like Figures 2-5 , Figure 8 As shown, the temporary corrugated storage tube 220 also includes a valve plate 227 for sealing the joint 225 and a rotating plate 226 for rotating the valve plate 227. The valve plate 227 is rotatably connected to the inside of the joint 225 via a rotating shaft, and the rotating plate 226 is fixedly installed at the end of the rotating shaft of the valve plate 227. It is understood that when the temporary corrugated storage tube 220 is needed to store blood, the rotating plate 226 needs to be rotated. When the rotating plate 226 rotates, it can drive the rotating shaft to rotate. When the rotating shaft rotates, it can drive the rotating plate 226 to rotate. When the rotating plate 226 rotates, it can seal the inside of the connector 225.

[0033] like Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 9 As shown, the blood inlet 310 also includes a first binding rope 314 and a second binding rope 316 for binding the legs, and an arc-shaped groove 313 for installing the first binding rope 314 and the second binding rope 316. The top and bottom of the blood inlet 310 are provided with arc-shaped grooves 313, and the two ends of the arc-shaped grooves 313 are respectively connected to the first binding rope 314 and the second binding rope 316. It should be noted that after the blood collection port 310 is connected to the pregnant woman's lower body, the first restraint rope 314 and the second restraint rope 316 can be removed from the arc-shaped groove 313. After the first restraint rope 314 and the second restraint rope 316 are removed, the blood collection port 310 can be bound to the skin.

[0034] like Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, the blood inlet 310 also includes an upper Velcro 315 and a lower Velcro 317 for connecting the first restraint rope 314 and the second restraint rope 316 to each other. The upper Velcro 315 is connected to the surface of the first restraint rope 314 near its end, and the lower Velcro 317 is connected to the surface of the second restraint rope 316 near its end. It is conceivable that after the first restraint rope 314 and the second restraint rope 316 are removed, the upper hook and loop fastener 315 and the lower hook and loop fastener 317 at the ends can be pulled to move them. When the upper hook and loop fastener 315 and the lower hook and loop fastener 317 move, the first restraint rope 314 and the second restraint rope 316 can be tied to the legs, and the upper hook and loop fastener 315 and the lower hook and loop fastener 317 can be stuck together.

[0035] like Figures 1-3 , Figure 5 , Figure 7 and Figure 9 As shown, the blood inlet 310 also includes an installation groove 319 for placing the blood inlet 310, and a first magnet 318 and a second magnet 3110 for fixing the blood inlet 310. The flow guide plate 400 has an installation groove 319 on its surface near the blood inlet 300. The second magnet 3110 is installed inside the installation groove 319. The first magnet 318 is installed on the surface of the blood inlet 310 near the second magnet 3110. It should be understood that when the blood inlet 310 is not in use, the side of the blood inlet 310 with the first magnet 318 is placed inside the mounting groove 319. When the blood inlet 310 is placed, the first magnet 318 can be magnetically attracted to the second magnet 3110, making the blood inlet 310 more secure. Furthermore, the blood in the blood inlet 310 can flow along the inclined surface of the guide plate 400 into the blood inlet 310 and then flow into the blood inlet 300 through the second telescopic tube 312.

[0036] like Figures 1-6 As shown, the water-retaining trough 420 also includes a return pipe 421 for guiding blood. The return pipe 421 is obliquely opened through the upper surface of the guide pad 400, and the end of the return pipe 421 is connected to the inside of the water-retaining trough 420. It is conceivable that after the blood flows into the water-blocking groove 420 through the inclined surface of the guide plate 400, the blood can flow back to the inclined surface on the other side of the guide plate 400 through the return pipe 421 for collection.

[0037] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A disposable maternal blood collection and measuring bag for use during childbirth, comprising: The utility model provides a metering bag (100), the top of metering bag (100) is provided with the connecting pipe (200) for conveying blood, the end of connecting pipe (200) is connected with the blood inlet (300) for blood inflow, the bottom of blood inlet (300) is fixedly installed with the flow guide pad (400) for blood flow guide, the upper surface of flow guide pad (400) is equipped with arc surface, it is characterized by; The metering bag (100) includes a scale (110) for observing the amount of blood, a bag opening (130) for blood inflow, and a movable bottle cap (120) for closing the bag opening (130); The metering bag (100) is fixedly installed with the scale (110), and the top of the metering bag (100) is fixedly installed with the bag opening (130), and the surface of the bag opening (130) is movably installed with the movable bottle cap (120) through the elastic band; The bag opening (130) includes a clamping groove (131) for connecting the connecting pipe (200), and a clamping block (133) for clamping connection with the clamping groove (131); The surface of the bag opening (130) is symmetrically provided with two clamping grooves (131), and the clamping grooves (131) are clamping connected with the clamping blocks (133) inside; The connecting pipe (200) includes a first telescopic pipe (210) for adjusting the length, and a temporary corrugated storage pipe (220) for temporarily storing blood; The surface of the connecting pipe (200) near both ends is respectively provided with a first telescopic pipe (210), and the end of the connecting pipe (200) is provided with a temporary corrugated storage pipe (220); The temporary corrugated storage pipe (220) includes a docking port (221) for guiding blood flow, and a connecting port (223) connected with the docking port (221); The temporary corrugated storage pipe (220) is fixedly installed with the docking port (221) on the inner top side near the connecting pipe (200), and the bottom of the temporary corrugated storage pipe (220) is fixedly installed with the connecting port (223); The blood inlet (300) includes a blood receiving port (310) for docking with the female part when the amount of blood is large; The blood inlet (300) includes a blood receiving port (310) for docking with the female part when the amount of blood is large; The blood receiving port (310) is arranged on the side surface of the blood inlet (300); The blood receiving port (310) includes a protective pad (311) for protection and deformation, and a second telescopic pipe (312) for extending the position of the blood receiving port (310); The input port of the blood receiving port (310) is connected with the protective pad (311), the top end of the second telescopic pipe (312) is connected with the output port of the blood receiving port (310), and the end of the second telescopic pipe (312) is connected in the blood inlet (300); The flow guide pad (400) includes a blocking strip (410) for blocking blood, a water blocking groove (420) for preventing blood from splashing, and a fixing rope (430) for fixing the flow guide pad (400); The left and right sides of the flow guide base plate (400) are connected with the blocking strips (410), the upper surface of the flow guide base plate (400) is provided with the water blocking groove (420), and the bottom of the flow guide base plate (400) is connected with the fixing rope (430).

2. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 1, characterized in that: The bag opening (130) further comprises a slot (134) for connection, and an elastic plate (132) for fixing the clamping block (133); The outer surface of the bag opening (130) is movably connected with the slot (134), the side surface of the clamping block (133) is fixedly connected with the elastic plate (132), and the end of the elastic plate (132) is fixedly connected to the side surface of the slot (134).

3. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 1, characterized in that: The temporary corrugated storage pipe (220) further comprises an annular notch (222) and a protrusion (224) for connecting the connecting port (223) with the docking port (221); The bottom end of the connecting port (223) is symmetrically provided with two annular notches (222), the annular notches (222) are internally clamped and connected with the protrusions (224), and the protrusions (224) are fixedly installed on the inner wall of the connecting port (223).

4. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 3, characterized in that: The temporary corrugated storage pipe (220) further comprises a connector (225) for replacing the metering bag (100); The bottom end of the connecting port (223) is fixedly installed with the connector (225), and the bottom end of the connector (225) is fixedly installed with the slot (134).

5. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 4, characterized in that: The temporary corrugated storage pipe (220) further comprises a valve plate (227) for closing the connector (225), and a rotating plate (226) for rotating the valve plate (227); The valve plate (227) is rotatably connected to the inside of the connector (225) through a rotating shaft, and the rotating plate (226) is fixedly installed at the rotating shaft end of the valve plate (227).

6. The disposable maternal blood collection and measuring bag according to claim 1, characterized in that: The blood receiving port (310) further comprises a first binding rope (314) and a second binding rope (316) for binding the leg, and an arc-shaped groove (313) for installing the first binding rope (314) and the second binding rope (316); The top and bottom of the blood receiving port (310) are provided with arc-shaped grooves (313), and the two ends of the arc-shaped grooves (313) are respectively connected with the first binding rope (314) and the second binding rope (316).

7. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 6, characterized in that: The blood receiving port (310) further comprises an upper magic tape (315) and a lower magic tape (317) for connecting the first binding rope (314) and the second binding rope (316) with each other; The surface of the first binding rope (314) close to the end is connected with the upper magic tape (315), and the surface of the second binding rope (316) close to the end is connected with the lower magic tape (317).

8. A disposable maternal blood collection and measuring bag for use in childbirth according to claim 7, characterized in that: The blood receiving port (310) further comprises a mounting groove (319) for placing the blood receiving port (310), and a first magnet (318) and a second magnet (3110) for fixing the blood receiving port (310); The surface of the flow guide pad (400) close to the blood inlet (300) is provided with a mounting groove (319), the inside of the mounting groove (319) is mounted with a second magnet (3110), the blood inlet (310) is mounted with a first magnet (318) on the surface close to the second magnet (3110).

9. The disposable maternal blood collection and measuring bag according to claim 1, characterized in that: The water blocking groove (420) further comprises a backflow pipe (421) for guiding blood flow; The upper surface of the flow guide pad (400) is obliquely provided with a backflow pipe (421), and the end of the backflow pipe (421) is connected to the inside of the water blocking groove (420).

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