A cerebrospinal fluid drainage monitoring device

Abstract

The present invention relates to the technical field of medical devices, and particularly relates to a cerebrospinal fluid drainage monitoring device. The device includes: a housing, a three-way pipeline is provided above the housing, pluggable hoses are provided at both ends of the three-way pipeline, and a flow interruption and separation member is provided on the housing below; a volume measuring member, the paired volume measuring members are respectively connected to the hoses; a liquid discharging member, the liquid discharging member is communicated with the bottom of the volume measuring member; the present invention can measure the liquid in the drainage tube within a certain period of time, without the need for long-term care by staff and medical personnel, and reduces the labor intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a cerebrospinal fluid drainage monitoring device. Background Art

[0002] As a commonly used drainage device for medical use, the drainage tube is widely used to guide pus, blood, and liquid accumulated in human tissues or cavities to the outside of the body to prevent postoperative infection and promote wound healing. For the brain area, it is usually used to drain bloody cerebrospinal fluid, inflammatory cerebrospinal fluid, and control rapidly progressing hydrocephalus in a short time. In actual use, doctors need to judge the situation inside the brain according to the liquid flow rate and the liquid volume in each period of time, so as to adjust the treatment plan. However, at present, due to the relatively slow liquid flow rate of the drainage tube, it is impossible to monitor the liquid flow rate, so doctors can only determine it through experience judgment or long-term observation judgment, which is very inconvenient and increases the labor intensity of medical staff. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a cerebrospinal fluid drainage monitoring device in view of the above-mentioned existing technical deficiencies, which can measure the liquid in the drainage tube within a certain period of time, without the need for long-term care by staff and medical staff, and reduces the labor intensity.

[0004] To solve the above technical problems, the technical solution adopted by the present invention includes:

[0005] A housing, a three-way pipeline is provided above the housing, both ends of the three-way pipeline are provided with pluggable hoses, and a flow interruption and separation member is provided on the housing below.

[0006] Volume measuring members, the paired volume measuring members are respectively connected to the hoses.

[0007] A liquid discharging member, the liquid discharging member is communicated with the bottom of the volume measuring member.

[0008] Preferably, fixed channels are symmetrically provided inside the housing; the volume measuring member includes a container slidably connected to the fixed channel, and a tray located below the container and in contact with the bottom surface, and a gravity sensor is provided on the tray; a negative pressure member is provided at the top of the container and communicated through a pipeline.

[0009] Preferably, the center of the tray has a through hole.

[0010] Preferably, the liquid discharging member includes a second pipeline communicated with the bottom of the container, and a liquid pumping pump connected to the second pipeline.

[0011] Preferably, a solenoid valve is provided at the connection of the second pipeline and the bottom of the container.

[0012] Preferably, the flow cutoff and separation member includes an electric push rod, a squeezing assembly, and a displacement kit; the electric push rod is fixed to the housing and pushes the squeezing assembly to apply pressure to the surface of the hose; the displacement kit is fixed to the end of the hose, and the electric push rod pushes the displacement kit to move to one side during displacement.

[0013] Preferably, the squeezing assembly includes a support bracket fixed to the housing and located above the three-way pipe, and a retention column slidably connected to the electric push rod; a spring abutting against the electric push rod is provided on the retention column.

[0014] Preferably, the end cross-section of the retention column is trapezoidal.

[0015] Preferably, the displacement kit includes a slider and a connecting rod; the slider is slidably connected to the housing; a guiding hole connected to the slider is provided at one end of the connecting rod, and the other end is connected to the rotating shaft of the electric push rod.

[0016] Preferably, the cross-sectional shape of the guiding hole is key-shaped.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By measuring the weight of the liquid passing through within a certain period of time and calculating to judge the flow rate of the liquid, the simultaneous monitoring of both the liquid volume and flow rate is achieved, and the accuracy is higher compared to the traditional manual judgment.

[0019] 2. By adopting two volume measuring members, the function of separate detection at different time periods is realized, and at the same time, the normal liquid drainage is not affected, and the structure is reasonable and stable.

[0020] 3. The liquid discharging member cooperates with the flow cutoff and separation member to pump out the liquid in the volume measuring member that has been measured and wait for subsequent liquid storage. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of a cerebrospinal fluid drainage monitoring device;

[0022] Figure 2 It is a schematic diagram of the internal structure connection of the housing of a cerebrospinal fluid drainage monitoring device;

[0023] Figure 3 It is a schematic diagram of the internal structure distribution of a cerebrospinal fluid drainage monitoring device;

[0024] Figure 4 It is a schematic diagram of the structure of the volume measuring member of a cerebrospinal fluid drainage monitoring device;

[0025] Figure 5 It is a schematic diagram of the connection of the liquid discharging member of a cerebrospinal fluid drainage monitoring device;

[0026] Figure 6 Schematic connection diagram of the flow interruption and separation component of a cerebrospinal fluid drainage monitoring device;

[0027] Figure 7 Schematic structural diagram of the flow interruption and separation component of a cerebrospinal fluid drainage monitoring device;

[0028] Figure 8 Schematic structural diagram of the intercepting column of a cerebrospinal fluid drainage monitoring device;

[0029] Figure 9 Schematic structural diagram of the displacement kit of a cerebrospinal fluid drainage monitoring device;

[0030] Figure 10 Schematic cross-sectional view of the fixed channel of a cerebrospinal fluid drainage monitoring device.

[0031] In the figure: 1. Housing; 2. Flow interruption and separation component; 3. Volume measurement component; 4. Liquid discharge component; 5. Electric push rod; 6. Extrusion assembly; 7. Displacement kit; 101. Three-way pipeline; 102. Hose; 103. Fixed channel; 301. Container; 302. Tray; 303. Gravity sensor; 304. Negative pressure component; 305. Through hole; 401. Second pipeline; 402. Liquid extraction pump; 403. Solenoid valve; 601. Support tray; 602. Intercepting column; 603. Spring; 701. Slide block; 702. Link; 703. Guide hole. Specific embodiments

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0033] Specific embodiment one: In combination with Figures 1-10 As shown, a cerebrospinal fluid drainage monitoring device includes: a housing 1, a three-way pipeline 101 is provided above the housing 1, both ends of the three-way pipeline 101 are provided with pluggable hoses 102, and the other end is connected to an external diversion tube. A flow interruption and separation component 2 is provided on the housing 1 below; a volume measurement component 3, the paired volume measurement components 3 are respectively connected to the hoses 102; a liquid discharge component 4, the liquid discharge component 4 is communicated with the bottom of the volume measurement component 3;

[0034] During use, it is vertically placed as a whole. The diversion tube enters the patient's brain, and the therapeutic liquid medicine is injected. Under the action of the dilution of the liquid medicine, the solution in the brain flows into the three-way pipeline 101 along the diversion tube. At this time, one end of the three-way pipeline 101 is in a closed state through the flow interruption and separation member 2, and the liquid flows into the volume measuring member 3 from the other end. The average flow rate is calculated based on the weight of the liquid and the time period for the doctor's reference. After a period of time, the three-way pipeline 101 at the current position is closed, and the other end is opened to continue the drainage measurement, realizing continuous drainage measurement, which is convenient to use, does not require the company of staff, reduces the labor intensity, and the drainage member 4 is used to extract and discharge the volume measuring member 3 that has stored liquid for subsequent use. The overall structure is reasonably arranged.

[0035] Combined with Figures 2-4 As shown, fixed channels 103 are symmetrically arranged inside the housing 1; the volume measuring member 3 includes a container 301 slidably connected to the fixed channel 103, and a tray 302 located below the container 301 and in contact with the bottom surface, and a gravity sensor 303 is provided on the tray 302; a negative pressure member 304 connected by a pipeline is provided at the top of the container 301; the liquid in the three-way pipeline 101 flows into the inside of the container 301 through the hose 102, and the gravity sensor 303 measures the liquid in the container 301 in real time. After reaching the specified time, the flow rate is calculated by calculating the relationship between the weight and time. Among them, the negative pressure member 304 is a small or micro negative pressure pump, which is convenient for the extraction operation of the liquid;

[0036] The specific calculation process is as follows;

[0037] Divide the weight in the container 301 by the density of the liquid to obtain the current volume, and then divide the volume by the time according to the time to obtain the average flow rate for the medical staff's reference;

[0038] In a preferred embodiment, a through hole 305 is provided at the center of the tray 302 to facilitate the passage of the second pipeline 401 in the drainage member 4;

[0039] In a preferred embodiment, the drainage member 4 includes a second pipeline 401 connected to the bottom of the container 301, and a liquid extraction pump 402 connected to the second pipeline 401; the liquid extraction pump 402 is connected to the inside of the container through the second pipeline 401 to extract the liquid in the container 301 for subsequent use;

[0040] In a preferred embodiment, a solenoid valve 403 is provided at the connection between the second pipeline 401 and the bottom of the container 301. By installing the solenoid valve 403 near the bottom of the container 301, the control of the second pipeline 401 can be realized, and at the same time, the liquid in the container 301 is prevented from flowing into the second pipeline 401, affecting the measurement accuracy.

[0041] Combined with Figures 6-9As shown, the flow cut-off and separation member 2 includes an electric push rod 5, a squeezing assembly 6 and a displacement kit 7; the electric push rod 5 is fixed to the housing 1 and pushes the squeezing assembly 6 to apply pressure to the surface of the hose 102; the displacement kit 7 is fixed to the end of the hose 102, and during the displacement of the electric push rod 5, it pushes the displacement kit 7 to move to one side; the overall structure is used in pairs. By moving the electric push rod 5 upward, it drives the squeezing assembly 6 to squeeze and seal the port of the tee pipe 101 to achieve flow cut-off. And as it continues to move upward a certain distance, it can push the displacement kit 7 to move to one side, disconnecting the hose 102 from the tee pipe 101 and connecting it to the atmosphere, facilitating the liquid extraction operation of the liquid discharging member 4 for the liquid in the container 301;

[0042] In a preferred embodiment, the squeezing assembly 6 includes a support bracket 601 fixed to the housing 1 and located above the tee pipe 101, and a retaining column 602 slidably connected to the electric push rod 5; a spring 603 is provided on the retaining column 602 for abutting against the electric push rod 5; during the upward movement, the retaining column 602 applies pressure to the surface of the tee pipe 101 and contacts the support bracket 601 to complete the interception of the end of the tee pipe 101;

[0043] In a preferred embodiment, the end cross-section of the retaining column 602 is trapezoidal. The trapezoidal structure facilitates applying pressure to the tee pipe 101 and uses the inclined surfaces on both sides to avoid damaging the surface of the pipe;

[0044] In a preferred embodiment, the displacement kit 7 includes a slider 701 and a connecting rod 702; the slider 701 is slidably connected to the housing 1; one end of the connecting rod 702 is provided with a guiding hole 703 connected to the slider 701, and the other end is rotationally connected to the rotating shaft of the electric push rod 5; as the electric push rod 5 continues to move upward, at this time, the retaining column 602 and the support bracket 601 cooperate to complete the interception of the tee pipe 101. Under the action of resistance, it overcomes the elastic force of the spring 603, thereby continuing to push the connecting rod 702 to displace. And when the bottom of the guiding hole 703 abuts against the connection part of the slider 701, it starts to push the slider 701 to move to one side, thus completing the separation of the hose 102 from the tee pipe 101;

[0045] Among them, the upper part of the slider 701 is connected and fixed to the end position of the hose 102, and a chute for the displacement of the slider 701 is provided inside the housing 1;

[0046] In a preferred embodiment, the cross-sectional shape of the guiding hole 703 is key-shaped, leaving a certain displacement space to avoid the situation where the connecting rod 702 starts to push the slider 701 to separate the hose 102 from the tee pipe 101 and cause liquid leakage when the retaining column 602 has not intercepted the tee pipe 101.

[0047] Combined with Figure 10As shown, three semi-circular protrusions arranged at 60 degrees can also be added to the inner wall of the fixed channel to contact the surface of the container 301, realizing the positioning and support of the container 301, reducing the contact area with the container 301, and reducing the frictional resistance. Among them, the material of the protrusions can be selected as iron, while the container 301 is made of plastic, further reducing the frictional resistance between the two.

[0048] In the present invention, the structure at the control module is a conventional technology, including a PLC controller and a power supply module. By connecting the PLC controller to the solenoid valve 403, the liquid extraction pump 402, the gravity sensor 303, and the electric push rod 5 respectively, and inputting the calculated content into the above, the control of the overall structure is realized, such as controlling the opening and closing of both ends of the three-way pipeline 101 and the opening and closing of the solenoid valve 403 respectively, while the power supply module is used for overall power supply. Specific Embodiment 2

[0050] The present invention can also be added with an alarm module. When the PLC controller detects that the flow rate in the previous time period exceeds or is lower than the set value, the PLC controller sends a signal to the alarm module to realize the alarm and prompt the medical staff to discover the situation in time; among them, the alarm module can be a horn sound alarm, and an indicator light can also be added to flash for prompt. Specific Embodiment 3

[0052] Regarding the disinfection and use of the equipment

[0053] One end of the diversion tube is connected to the three-way pipeline 101, and the other part is connected to the liquid outlet of the liquid extraction pump 402. At the same time, the whole device is sterilized before use. After use, the disinfectant is extracted through the negative pressure part 304 to perform a sterilization operation on the whole interior, and the three-way pipeline 101 is blocked to achieve sealed isolation, so as to meet the requirements of repeated use.

[0054] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A cerebrospinal fluid drainage monitoring device, characterized in that, it includes: a housing (1), a three-way pipe (101) is provided above the housing (1), pluggable hoses (102) are provided at both ends of the three-way pipe (101), and a flow cut-off and separation member (2) is provided on the housing (1) below; a volume measuring member (3), the paired volume measuring members (3) are respectively connected to the hoses (102); a liquid discharging member (4), the liquid discharging member (4) is communicated with the bottom of the volume measuring member (3); the flow cut-off and separation member (2) includes an electric push rod (5), a squeezing assembly (6) and a displacement kit (7); the electric push rod (5) is fixed to the housing (1) and pushes the squeezing assembly (6) to apply pressure to the surface of the hose (102); the displacement kit (7) is fixed to the end of the hose (102), and the electric push rod (5) pushes the displacement kit (7) to move to one side during displacement.

2. A cerebrospinal fluid drainage monitoring device according to claim 1, characterized in that: fixed channels (103) are symmetrically provided inside the housing (1); the volume measuring member (3) includes a container (301) slidably connected to the fixed channels (103), and a tray (302) located below the container (301) and in contact with the bottom surface, and a gravity sensor (303) is provided on the tray (302); a negative pressure member (304) communicated through a pipeline is provided at the top of the container (301).

3. A cerebrospinal fluid drainage monitoring device according to claim 2, characterized in that: a through hole (305) is provided at the center of the tray (302).

4. A cerebrospinal fluid drainage monitoring device according to claim 2, characterized in that: the liquid discharging member (4) includes a second pipeline (401) communicated with the bottom of the container (301), and a liquid pumping pump (402) connected to the second pipeline (401).

5. A cerebrospinal fluid drainage monitoring device according to claim 4, characterized in that: a solenoid valve (403) is provided at the connection of the second pipeline (401) and the bottom of the container (301).

6. A cerebrospinal fluid drainage monitoring device according to claim 1, characterized in that: the squeezing assembly (6) includes a support bracket (601) fixed to the housing (1) and located above the three-way pipe (101), and an intercepting column (602) slidably connected to the electric push rod (5); a spring (603) abutted against the electric push rod (5) is provided on the intercepting column (602).

7. A cerebrospinal fluid drainage monitoring device according to claim 6, characterized in that: the end cross section of the intercepting column (602) is trapezoidal.

8. A cerebrospinal fluid drainage monitoring device according to claim 6, characterized in that: the displacement kit (7) includes a slider (701) and a connecting rod (702); the slider (701) is slidably connected to the housing (1); a guide hole (703) connected to the slider (701) is provided at one end of the connecting rod (702), and the other end is rotationally connected to the rotating shaft of the electric push rod (5).

9. A cerebrospinal fluid drainage monitoring device according to claim 8, characterized in that: the cross-sectional shape of the guiding hole (703) is a key shape.

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