Bleeding amount metering device

Abstract

The utility model relates to the field of operating room anesthesia, and discloses a bleeding amount metering device which comprises a metering tube, the left end of the metering tube is fixedly connected with a fixing ring, the inner wall of the fixing ring is provided with a limiting mechanism, the side wall of the left end of the fixing ring is fixedly connected with a conical sleeve, and the side wall of the left end of the fixing ring is fixedly connected with a sealing gasket. And a connecting pipe is inserted into the outer wall of the conical sleeve. According to the utility model, through the arrangement of the module, the liquid distinguishing tube, the flow sensor, the display and the recovery tank, the flow condition of liquid can be accurately monitored in real time, the volume flow of the liquid in unit time can be accurately measured, and the liquid distinguishing tube can effectively distinguish liquid properties (such as blood, iodophor and the like) and detect the blood concentration; therefore, medical staff can accurately grasp the blood loss condition of the patient in real time, so that treatment decisions can be made timely and scientifically, for example, the blood transfusion opportunity and the blood transfusion amount are accurately judged, the operation safety and the treatment effect are improved, and the health of the patient is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of operating room anesthesia, especially to a bleeding amount measuring device. BACKGROUND

[0002] With the continuous progress of modern medical technology, the degree of operation refinement is higher and higher, and the accurate monitoring requirement of physiological parameters of patients is increasing. As one of the key physiological indicators, in order to improve the operation quality, reduce the operation risk and improve the prognosis of patients, the bleeding amount measuring device needs to be used.

[0003] In the prior art, the following defects exist: in the field of medical equipment, the traditional bleeding amount evaluation method has many shortcomings. In the past, medical staff mostly relied on experience to observe the bleeding amount of the operation area. This subjective judgment method has large error, and the actual blood loss cannot be accurately grasped. Although part of the existing measuring equipment can measure to a certain extent, it has single function, for example, it can only measure the total volume of liquid, cannot effectively distinguish different properties of liquid (such as blood, flushing liquid, etc.), and is also difficult to detect the change of blood concentration, which leads to that medical staff cannot obtain comprehensive and accurate information, and it is difficult to make accurate treatment decision at the critical moment. Therefore, the bleeding amount measuring device is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a bleeding amount measuring device, which aims at improving the problem that the traditional manual observation of bleeding amount in the prior art is easy to produce large error.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a bleeding amount measuring device, comprising a measuring pipe, the left end of the measuring pipe is fixedly connected with a fixed ring, the inner wall of the fixed ring is provided with a limiting mechanism, the left end side wall of the fixed ring is fixedly connected with a conical sleeve, the left end side wall of the fixed ring is fixedly connected with a sealing gasket, the outer wall of the conical sleeve is inserted with a connecting pipe, the inner wall of the connecting pipe is fixedly connected with a rubber air bag, the left end of the connecting pipe is fixedly connected with a drainage tube, the right end side wall of the measuring pipe is detachably installed with a liquid outlet pipe, the bottom end of the liquid outlet pipe is fixedly connected with a recovery tank, the inner wall of the measuring pipe is provided with a measuring assembly, the measuring assembly comprises a module, the module is arranged on the inner wall of the measuring pipe, the bottom end of the module is respectively provided with a liquid discrimination pipe and a flow sensor, and the top end of the module is provided with a display.

[0006] The limiting mechanism comprises a moving pipe, the moving pipe is slidingly connected on the inner wall of the fixed ring, the right end inner wall of the moving pipe is elastically connected with the fixed ring through a return spring, and the right end of the moving pipe is fixedly connected with a wedge block.

[0007] As a further description of the above technical scheme:

[0008] The display is fixedly connected to the top end of the metering pipe.

[0009] Further description of the above technical solution:

[0010] The right end inner wall of the moving pipe is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the left end inner wall of the fixed ring.

[0011] Further description of the above technical solution:

[0012] The wedge block is inserted on the outer wall of the connecting pipe.

[0013] Further description of the above technical solution:

[0014] The wedge block is provided with two groups, and the two groups of wedge blocks are symmetrically arranged on the outer wall of the fixed ring.

[0015] Further description of the above technical solution:

[0016] The right end side wall of the connecting pipe is in contact with the left end side wall of the fixed ring.

[0017] Further description of the above technical solution:

[0018] The right end side wall of the connecting pipe is in contact with the sealing gasket, and the outer wall of the rubber air bag is in contact with the outer wall of the conical sleeve.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1. In the utility model, the module, the liquid discrimination pipe, the flow sensor, the display and the recovery tank are arranged, the flow of the liquid can be monitored in real time and accurately, the volume flow of the liquid in a unit time can be accurately measured, the liquid discrimination pipe can effectively discriminate the properties of the liquid (such as blood, iodophor, etc.) and detect the blood concentration, which helps medical staff to grasp the blood loss of the patient in real time and accurately, so that timely and scientific treatment decisions can be made, such as accurate judgment of blood transfusion time and blood transfusion amount, improvement of operation safety and treatment effect and guarantee of the health of the patient.

[0021] 2. In the utility model, the wedge block, the moving pipe, the reset spring, the connecting pipe, the fixed ring and the conical sleeve are matched, the metering pipe, the drainage pipe and the liquid outlet pipe can be conveniently disassembled, when disinfection and cleaning are needed, the operator only needs to simply operate the wedge block with hands to easily complete disassembly, so that the pipes can be thoroughly cleaned and disinfected, cross infection can be effectively prevented and the hygiene and safety of the device can be ensured. DRAWINGS

[0022] Figure 1A kind of whole three-dimensional schematic diagram of the measuring pipe, drainage tube, liquid outlet pipe and recovery tank of the bleeding amount measuring device is proposed in the utility model;

[0023] Figure 2 A kind of fixed ring and connecting pipe exploded section view schematic diagram of the bleeding amount measuring device is proposed in the utility model;

[0024] Figure 3 A kind of fixed ring and moving pipe exploded section view schematic diagram of the bleeding amount measuring device is proposed in the utility model;

[0025] Figure 4 A kind of whole section view schematic diagram of the measuring pipe of the bleeding amount measuring device is proposed in the utility model.

[0026] Legend:

[0027] 1, measuring pipe;2, fixed ring;3, return spring;4, moving pipe;5, wedge;6, conical sleeve;7, sealing gasket;8, connecting pipe;9, rubber air bag;10, drainage tube;11, liquid outlet pipe;12, recovery tank;13, module;14, liquid discrimination pipe;15, flow sensor;16, display. Specific embodiments

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0029] Reference Figures 1-3The utility model provides an embodiment: a bleeding amount measuring device, fixed ring 2 is fixedly connected to the left end of measuring pipe 1, measuring pipe 1 can let blood pass through measuring pipe 1 cooperation liquid discernment pipe 14 and flow sensor 15 and carry out measurement, can calculate the outflow of blood, the inner wall of fixed ring 2 is provided with limit mechanism, the left end lateral wall of fixed ring 2 is fixedly connected with conical sleeve 6, the left end lateral wall of fixed ring 2 is fixedly connected with sealing washer 7, sealing washer 7 is silica gel material, can let sealing washer 7 coincide with connecting pipe 8, carries out second layer sealing, further improves the connection sealing, the outer wall of conical sleeve 6 is inserted with connecting pipe 8, the inner wall of connecting pipe 8 is fixedly connected with rubber air bag 9, rubber air bag 9 can produce deformation, when extruding, will utilize self elastic force and restore, the left end of connecting pipe 8 is fixedly connected with drainage tube 10, in operation, can pass through drainage tube 10 and send blood to measuring pipe 1, is convenient for subsequent medical staff to detect flow, the right end lateral wall of measuring pipe 1 detachably installs with liquid outlet pipe 11, and the dismounting mode of liquid outlet pipe 11 and drainage tube 10 is same, does not make too much repetition here, the bottom of liquid outlet pipe 11 is fixedly connected with recovery tank 12, the blood in recovery tank 12 is measured and is necessary after analysis, possibly needs to carry out further processing, blood possibly will carry out recycling utilization according to the situation such as autologous blood transfusion, and other liquid needs to be properly disposed according to medical waste treatment regulation, the inner wall of measuring pipe 1 is provided with measuring assembly.

[0030] The limit mechanism includes a moving tube 4, which is slidingly connected to the inner wall of the fixed ring 2. A slot corresponding to the moving tube 4 is formed on the fixed ring 2, which allows the moving tube 4 to move along the slot without detaching from the slot. The right end inner wall of the moving tube 4 is elastically connected to the fixed ring 2 through a return spring 3. The right end of the moving tube 4 is fixedly connected with a wedge block 5. The left end of the wedge block 5 is inclined. When the inclined surface is extruded, the wedge block 5 will move along with the moving tube 4 on the inner wall of the fixed ring 2.

[0031] Reference Figures 1-3The metering assembly comprises a module 13 which can receive data from the flow sensor 15 and the liquid discrimination tube 14, perform calculation and processing, and finally obtain information such as the amount of bleeding and the change in the concentration of bleeding. The module 13 is a prior art and will not be described in detail here. The module 13 is arranged on the inner wall of the metering tube 1, and the bottom end of the module 13 is respectively provided with the liquid discrimination tube 14 and the flow sensor 15. The liquid discrimination tube 14 has optical sensor technology: different liquids have different absorption, reflection or refraction characteristics of specific wavelengths of light, so that the liquids can be discriminated. For example, blood and other common liquids have different optical characteristics in the visible light and near-infrared light bands. A light source can be arranged on one side of the liquid discrimination tube 14 to emit light of a specific wavelength, and a photodetector can be arranged on the other side to receive the transmitted or reflected light signal. By analyzing the intensity and wavelength of the light signal, it can be determined whether it is blood and some basic characteristics of the blood, such as whether there is hemolysis and other abnormal conditions. Color sensor technology: the color sensor can sense the color change of the liquid. Since blood has a specific red color, which is different from the color of other liquids, the color sensor can detect this color difference to distinguish whether the liquid is blood. Generally, the probe of the color sensor is placed near or inside the liquid discrimination tube 14. When the liquid flows through, the sensor captures the color information and converts it into an electrical signal, which is then analyzed and judged. Capacitive sensor technology: based on the characteristic that different liquids have different dielectric constants, when the liquid enters the liquid discrimination tube 14, it will change the electric field distribution between the capacitor plates in the tube, thereby causing a change in the capacitance value. By measuring the change in the capacitance value and comparing it with the known capacitance characteristic data of blood and other liquids, it can be determined whether the liquid in the tube is blood and the concentration of the blood, etc. It can analyze the properties of the liquid in the suction line, distinguish water, iodophor, blood concentration, etc., so as to accurately accumulate the amount of bleeding. The flow sensor 15 is an ultrasonic technology: the ultrasonic flow sensor 15 uses the propagation characteristics of ultrasonic waves in the fluid to measure the flow. In the bleeding amount metering device, when the blood flows through the pipeline, the transmitting transducer emits an ultrasonic signal, which is transmitted in the blood and received by the receiving transducer. Since the flow of blood changes the propagation speed and frequency of the ultrasonic wave, according to these changes and known parameters such as the size of the pipeline, the flow rate and flow of the blood can be calculated by a specific algorithm. The flow data can be accurately captured, which provides basic data support for subsequent accurate calculation of the amount of bleeding. The top end of the module 13 is provided with a display 16 which directly displays the calculated data such as the amount of bleeding and the concentration of bleeding, so that medical personnel can check the data in real time during the operation. The display 16 is fixedly connected to the top end of the metering tube 1.

[0032] Referring to Figures 1-3The inner wall of the right end of the moving tube 4 is fixedly connected with one end of the reset spring 3. When the moving tube 4 moves outward, the reset spring 3 is stretched. When reset, the reset spring 3 is used to reset the moving tube 4 by the reverse elastic force. The other end of the reset spring 3 is fixedly connected with the inner wall of the left end of the fixed ring 2. The wedge block 5 is inserted on the outer wall of the connecting tube 8. The connecting tube 8 is provided with a notch corresponding to the wedge block 5, so that the connecting tube 8 cannot be separated from the tapered sleeve 6 after being connected. The wedge block 5 is provided with two groups, and the two groups of wedge blocks 5 are symmetrically arranged on the outer wall of the fixed ring 2. The right end side wall of the connecting tube 8 is in contact with the left end side wall of the fixed ring 2. The right end side wall of the connecting tube 8 is in contact with the sealing gasket 7. The outer wall of the rubber air bag 9 is in contact with the outer wall of the tapered sleeve 6. The tapered sleeve 6 is provided with a ring groove, so that the ring groove of the tapered sleeve 6 coincides with the rubber air bag 9 to perform the first layer sealing, so that the blood cannot flow out from the connecting part.

[0033] Working principle: when the metering pipe 1, the drainage pipe 10 and the liquid outlet pipe 11 need to be disassembled, sterilized and cleaned, the wedge block 5 is only pulled by hand to move the wedge block 5 outward and stretch the reset spring 3. When the left end of the wedge block 5 is separated from the notch of the connecting tube 8, the connecting tube 8 is moved to be separated from the fixed ring 2 and the tapered sleeve 6. Finally, the wedge block 5 is loosened, and the moving tube 4 and the wedge block 5 are reset by the reverse elastic force of the reset spring 3. When the metering pipe 1, the drainage pipe 10 and the liquid outlet pipe 11 need to be connected and used, the connecting tube 8 is aligned and inserted with the tapered sleeve 6 and the fixed ring 2. The right end of the connecting tube 8 is pressed against the left end inclined surface of the wedge block 5. The wedge block 5 moves outward and stretches the reset spring 3. When the left end of the wedge block 5 coincides with the outer wall notch of the connecting tube 8, the reverse elastic force of the reset spring 3 is used to reset the moving tube 4 and the wedge block 5. The wedge block 5 is inserted on the outer wall notch of the connecting tube 8. At the same time, in the process of insertion, the tapered sleeve 6 presses the rubber air bag 9 to make it deform. When the outer wall notch of the tapered sleeve 6 coincides with the rubber air bag 9, the rubber air bag 9 is reset and sealed by the elasticity itself. The right end side wall of the connecting tube 8 is in contact with the sealing gasket 7 to seal the connecting part of the metering pipe 1, the drainage pipe 10 and the liquid outlet pipe 11.

[0034] During use, the blood enters the metering pipe 1 through the drainage pipe 10, the connecting tube 8, the tapered sleeve 6 and the fixed ring 2, and is monitored in real time by the liquid discrimination pipe 14 and the flow sensor 15. The volume flow rate of the liquid in the pipe is measured in unit time. The liquid flowing through the metering pipe 1 is identified as blood, iodine or other liquid. The concentration of the blood is detected. The data of the liquid discrimination pipe 14 and the flow sensor 15 are transmitted to the module 13 and displayed on the display 16. Finally, the blood flows into the recovery tank 12 through the liquid outlet pipe 11 for treatment.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A bleeding volume metering device comprising a metering tube (1), characterized in that: The left end of the metering pipe (1) is fixedly connected with a fixed ring (2), the inner wall of the fixed ring (2) is provided with a limiting mechanism, the left end side wall of the fixed ring (2) is fixedly connected with a tapered sleeve (6), the left end side wall of the fixed ring (2) is fixedly connected with a sealing gasket (7), the outer wall of the tapered sleeve (6) is inserted with a connecting pipe (8), the inner wall of the connecting pipe (8) is fixedly connected with a rubber air bag (9), the left end of the connecting pipe (8) is fixedly connected with a drainage pipe (10), the right end side wall of the metering pipe (1) is detachably installed with a liquid outlet pipe (11), the bottom end of the liquid outlet pipe (11) is fixedly connected with a recovery tank (12), the inner wall of the metering pipe (1) is provided with a metering assembly, the metering assembly comprises a module (13), the module (13) is arranged on the inner wall of the metering pipe (1), the bottom end of the module (13) is respectively provided with a liquid discrimination pipe (14) and a flow sensor (15), and the top end of the module (13) is provided with a display (16). The limiting mechanism comprises a moving pipe (4), the moving pipe (4) is slidingly connected to the inner wall of the fixed ring (2), the right end inner wall of the moving pipe (4) is elastically connected to the fixed ring (2) through a return spring (3), and the right end of the moving pipe (4) is fixedly connected with a wedge block (5).

2. A bleeding quantification device according to claim 1, characterized in that: The display (16) is fixedly connected to the top end of the metering pipe (1).

3. A bleeding quantification device according to claim 1, characterized in that: The right end inner wall of the moving pipe (4) is fixedly connected with one end of the return spring (3), and the other end of the return spring (3) is fixedly connected with the left end inner wall of the fixed ring (2).

4. A bleeding quantification device according to claim 1, characterized in that: The wedge block (5) is inserted into the outer wall of the connecting pipe (8).

5. A bleeding quantification device according to claim 1, characterized in that: The wedge block (5) is provided with two groups, and the two groups of wedge blocks (5) are symmetrically arranged on the outer wall of the fixed ring (2).

6. A bleeding quantification device according to claim 1, characterized in that: The right end side wall of the connecting pipe (8) is in contact with the left end side wall of the fixed ring (2).

7. A bleeding quantification device according to claim 1, characterized in that: The right end side wall of the connecting pipe (8) is in contact with the sealing gasket (7), and the outer wall of the rubber air bag (9) is in contact with the outer wall of the tapered sleeve (6).

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