CN115736819A - Online liquid level monitoring device for biological body fluid - Google Patents
Online liquid level monitoring device for biological body fluid Download PDFInfo
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- CN115736819A CN115736819A CN202211266132.XA CN202211266132A CN115736819A CN 115736819 A CN115736819 A CN 115736819A CN 202211266132 A CN202211266132 A CN 202211266132A CN 115736819 A CN115736819 A CN 115736819A
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Abstract
The application provides a biological body fluid online liquid level monitoring device, which comprises a body fluid container, a laser ranging device and a light reflection floater, wherein the light reflection floater is positioned in the body fluid container; the top of body fluid container is equipped with the drain coupling, and the lower extreme of drain coupling communicates with the inside of body fluid container, and the bottom of body fluid container is equipped with the sampling tube, the last inside intercommunication with the body fluid container of sampling tube, and the lower extreme of sampling tube is equipped with the tube cap. The laser distance measuring device can be quickly installed and detachably installed at the top end of the body fluid placing container. The bottom of the laser ranging device is provided with a laser emitting head and a laser receiving head. The application provides an online liquid level monitoring device of biological fluid has accuracy, swift, convenient to use, low cost, the quality of doctorsing and nurses is improved, practices thrift the characteristics of manpower.
Description
Technical Field
The application relates to the technical field of biological body fluid detection equipment, in particular to a biological body fluid online liquid level monitoring device.
Background
Drainage of body fluids is a technique for conducting blood, pus or other substances accumulated in human tissues or body cavities out of the body. The purpose of drainage is to reduce local pressure, reduce adhesion and promote healing. In addition, the collected body fluid can be used as the basis for medical detection and auxiliary treatment. In the medical evaluation of body fluid drainage nursing, whether the record of body fluid is complete, whether the description of the body fluid is colorless, whether the measurement of the amount of input and output is accurate and timely and the like are all important medical diagnosis and treatment links.
However, the current body fluid testing devices have difficulty in accurately measuring the body fluid volume, and cannot achieve continuous and real-time monitoring of body fluid flow data over a treatment period.
Disclosure of Invention
The embodiment of the application provides an online liquid level monitoring device for biological body fluid, which comprises a body fluid container, a laser ranging device and a light reflection floater, wherein the light reflection floater is positioned in the body fluid container;
the top of body fluid container is equipped with the drain pipe joint, the lower extreme of drain pipe joint with the inside intercommunication of body fluid container, the bottom of body fluid container is equipped with the sampling tube, go up of sampling tube with the inside intercommunication of body fluid container, the lower extreme of sampling tube is equipped with the tube cap.
The laser ranging device is placed at the top end of the body fluid container, and a laser emitting head and a laser receiving head are arranged at the bottom end of the laser ranging device.
The online liquid level monitoring device of biological body fluid that this application embodiment provided can automatic statistics and calculate per minute body fluid flow, continuous automatic tracking different time periods body fluid velocity of flow, flow. The body fluid flow speed and the body fluid flow of a patient during clinical treatment are automatically monitored, and reliable scientific basis is provided for treatment. The medical work efficiency is improved, and the work burden of a clinician is reduced. The laser ranging device can be connected and communicated with a remote computer through a built-in data communication transmission unit, and sends real-time body fluid monitoring data to the remote computer for storage and analysis.
The doctor can set up the body fluid alarm threshold value of control for every patient long-rangely, in time reminds clinician to carry out the flowing back automatically to the flowing back volume data of automatic recording. Has the characteristics of accuracy, rapidness, convenient use, low cost, improvement of medical care quality and labor saving.
In one possible implementation manner, the biological body fluid online liquid level monitoring device provided by the embodiment of the application, two vertically arranged limiting rods are arranged in the body fluid container, and the limiting rods are fixed on the inner wall of the body fluid container;
the light reflection floater comprises a top plate and a lower convex column arranged at the bottom end of the top plate, two guide holes are formed in the top plate, and the two guide holes are respectively sleeved on the two limiting rods.
In one possible implementation manner, the biological body fluid online liquid level monitoring device provided by the embodiment of the application is characterized in that a diversion baffle is arranged in the body fluid container, and the diversion baffle is obliquely arranged between the liquid guide pipe joint and the bottom wall of the body fluid container.
In one possible implementation, the biological body fluid online level monitoring device provided in the embodiment of the present application is a disposable transparent plastic container.
In one possible implementation manner, the biological body fluid online level monitoring device provided in the embodiment of the present application is provided with a volume scale on an outer wall surface of the body fluid container.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a biological fluid online level monitoring device provided by an embodiment of the present application;
FIG. 2 is a schematic top view of a biological fluid online level monitoring device provided in an embodiment of the present application.
Description of reference numerals:
10-a body fluid container;
11-a drain pipe joint;
12-a sampling tube;
13-a tube cap;
20-a laser ranging device;
21-a laser emitting head;
22-a laser receiving head;
30-a light reflective float;
31-a top plate;
311-a pilot hole;
32-convex columns;
40-a limiting rod;
50-a flow guide baffle;
60-volume scale;
70-body fluid in the container.
Detailed Description
Drainage of body fluids is a technique for conducting blood, pus or other substances accumulated in human tissues or body cavities out of the body. The purpose of drainage is to reduce local pressure, reduce adhesion and promote healing. In addition, the collected body fluid can be used as the basis for medical detection and auxiliary treatment. In the medical evaluation of body fluid drainage nursing, whether the record of body fluid is complete, whether the description is colorless, whether the measurement of the amount of input and output is accurate and timely, and the like are all important medical diagnosis and treatment links.
Common drainage parts comprise a brain, a wound cavity, a subdural space, a pus cavity, a neck, a chest cavity, an abdominal cavity, a stomach, a bladder and the like, and the volume of partial discharged body fluid has the following data measurement requirements in a treatment link.
Urine: urine excretion is one of the important indicators reflecting renal tissue perfusion and fluid balance. The renal function, cardiac function and blood volume of a patient can be judged clinically by observing and analyzing the amount, color and specific gravity of urine.
The observation criteria for abnormal urine volume were: polyuria 24 hours > 2500ml; oliguria: urine volume at 24 hours is less than 400ml or urine volume at 12 hours is less than 200ml or 17ml/h; no urine: 24 hours < 100ml or 12 hours < 50ml.
The curative effect of the diuretic and the dehydrate can be grasped by detecting and analyzing the urine volume. Can also be used as an important basis for the concentration and the speed of potassium supplement.
Cerebrospinal fluid: normal cerebrospinal fluid secretes 20ml per hour, 400-500ml per day, so the drainage speed needs to be controlled, the drainage quantity is 500 < ml/d, if too fast drainage is too fast, headache, nausea and vomiting caused by low intracranial pressure are easy to occur, and the drainage tube needs to be lifted or temporarily closed.
Subdural interstitial fluid: blood accumulates between the skull and the dura mater, and generally, greater than 20ml supratentorial hematoma and greater than 10ml subclinical hematoma in an adult can cause discomfort symptoms.
Thoracic cavity closed fluid: according to the disease condition, the thoracic drainage quantity is observed and recorded every day and every hour, for example, the drainage tube draws bloody liquid, if the drainage tube is larger than 200ml/h, the drainage is continuously carried out for more than 3 hours. Active bleeding is considered as ineffective by drug treatment.
Peritoneal fluid: the normal drainage is light red, the drainage is obviously reduced in 24 hours, and if the drainage volume exceeds 300ml in 12 hours, the color is red, namely the drainage is abnormal.
At present, in clinical recording and operation of calculating body fluid volume, manual weighing, recording and observation are generally adopted. Particularly, in an ICU (intensive care unit) monitoring room, the body fluid flow of a critical patient needs to be accurately measured, medical staff needs to manually observe and measure the body fluid flow rate and volume data at regular time, the continuous and real-time monitoring of the body fluid flow data in all treatment time periods cannot be realized, and the manual observation is very troublesome, time-consuming and labor-consuming during the operation of medical practice. Therefore, under the influence of environment and pressure, the medical staff increases the working strength and fatigue and is easy to have observation errors.
In the related art, the conventional methods for measuring the volume of biological fluid mainly include the following three methods:
1. and marking a volume scale value on the body fluid container, and identifying the liquid level height of the body fluid by artificial naked eyes to obtain volume data corresponding to the scale on the container.
The disadvantages of this method are: the liquid level height of the body fluid is identified by naked eyes, so that the body fluid cannot be continuously observed for a long time, and the measurement precision is low.
2. A capacitance type body fluid measuring device is arranged on the body fluid container, and the liquid level height of the body fluid is measured through capacitance, so that corresponding volume data on the container is obtained.
The disadvantages of this method are: the capacitance type body fluid measuring device is extremely easy to be interfered by physical environment and influenced by foam generated by body fluid, and has low measuring precision and large error.
3. The body fluid container is placed into a weighing device, the weight of the body fluid is measured through a weighing sensor of the weighing device, meanwhile, specific gravity data are obtained through a built-in liquid specific gravity meter, and the weighing device calculates and converts the weight of the body fluid and the specific gravity data into corresponding capacity.
The disadvantages of this method are: everyone's body fluid proportion has the certain degree difference, calculates as the volume through quality and liquid proportion, causes the measurement accuracy error big easily, and weighing sensor fragile.
In view of this, the working principle of the online liquid level monitoring device for biological body fluid provided by the embodiment of the present application adopts a combination of three basic principles, including a liquid communicating vessel principle, a buoyancy principle, and a principle of measuring the liquid level distance of body fluid by laser. The device comprises a body fluid container, a laser distance measuring device and a light reflecting floater. The position of the light reflection floater can be continuously and automatically monitored, so that the volume of body fluid in the container and the flow rate of the body fluid flowing into the container in unit time can be automatically calculated, and relevant information is sent to a doctor remote computer through a communication transmission unit. Has the characteristics of accuracy, rapidness, convenient use, low cost, improvement of medical care quality and labor saving.
In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described are some, but not all embodiments of the disclosure. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
FIG. 1 is a schematic structural diagram of a biological fluid online level monitoring device provided by an embodiment of the present application; FIG. 2 is a schematic top view of a biological fluid online level monitoring device provided in an embodiment of the present application.
Referring to fig. 1-2, the embodiment of the present application provides a biological fluid online level monitoring device, which includes a body fluid container 10, a laser distance measuring device 20, and a light reflecting float 30, where the light reflecting float 30 is located in the body fluid container 10, and where:
a volume scale 60 is provided on the outer wall surface of the container. The top end of the body fluid container 10 is provided with a liquid guide pipe joint 11, the upper end of the liquid guide pipe joint 11 is used for connecting a body fluid guide pipe, the lower end of the liquid guide pipe joint 11 is communicated with the interior of the body fluid container 10, and body fluid in the body fluid guide pipe flows into the body fluid container 10 through the liquid guide pipe joint 11.
The bottom end of the body fluid container 10 is provided with a sampling tube 12, the upper part of the sampling tube 12 is communicated with the inside of the body fluid container 10, the lower end of the sampling tube 12 is provided with a tube cover 13, and the sampling tube 12 is used for sampling the body fluid stored in the body fluid container 10.
The laser distance measuring device 20 is arranged at the top end of the body fluid container 10 in a way of being quickly assembled and disassembled, and the laser distance measuring device 20 is provided with a laser emitting head 21, a laser receiving head 22, a data communication transmission unit, a battery charging and discharging unit and the like. The laser emitting head 21 and the laser receiving head 22 are disposed at the bottom end of the laser ranging device 20.
The working process of the biological body fluid online liquid level monitoring device provided by the embodiment of the application is as follows: as the body fluid in the body fluid container 10 increases, the light reflecting float 30 floats under the influence of buoyancy. After the laser distance measuring device 20 is started, laser beams are emitted to the light reflection floater 30 through the laser emitting head 21, the laser is reflected to the laser receiving head 22 after being reflected by the light reflection floater 30, the laser receiving head 22 receives the reflected laser, and therefore the distance between the light reflection floater 30 and the laser distance measuring device 20 is calculated, and therefore the body fluid amount in the body fluid container 10 is calculated.
In addition, the flow rate of the body fluid flowing into the body fluid container 10 per unit time can be calculated from the body fluid amount change data, and the relevant information is transmitted to the doctor workstation through the data communication transmission unit.
The online liquid level monitoring device of biological body fluid that this application embodiment provided can automatic statistics and calculate per minute body fluid flow, continuous automatic tracking different time periods body fluid velocity of flow, flow. The body fluid flow rate and the flow of the patient during clinical treatment are automatically monitored, and reliable scientific basis is provided for treatment. The medical work efficiency is improved, and the work burden of a clinician is reduced. The laser ranging device 20 can be connected with a remote computer through a data communication transmission unit for communication, and transmits the real-time body fluid monitoring data to the remote computer for storage and analysis. The doctor can set up the body fluid alarm threshold value of control for every patient long-rangely, in time reminds clinician to carry out the flowing back automatically to the flowing back volume data of automatic recording. Has the characteristics of accuracy, rapidness, convenient use, low cost, improvement of medical care quality and labor saving.
In the embodiment of the present application, two vertically disposed limiting rods 40 are disposed in the body fluid container 10, and the limiting rods 40 are fixed on the inner wall of the body fluid container 10. The light reflection float 30 includes a top plate 31 and a lower stud 32 disposed at the bottom end of the top plate 31, two guide holes 311 are disposed on the top plate 31, and the two guide holes 311 are respectively sleeved on the two limit rods 40.
Therefore, at any time point, the laser beam can be effectively reflected by the light reflection surface of the light reflection floater 30, the light reflection floater 30 is prevented from moving to other positions of the container, and the failure of laser ranging caused by no laser reflection is avoided. And also prevents distortion of the activated ranging data due to the float reversal of the light reflecting float 30.
The volume of the lower projection 32 of the light reflecting float is smaller than the volume of the sampling tube 12, so that when a small amount of body fluid flows into the sampling tube 12, the light reflecting float 30 floats, and the laser ranging device 20 immediately and accurately measures the distance data between the light reflecting float 30 and the laser ranging device 20.
In the embodiment of the present application, a diversion baffle 50 is disposed in the body fluid container 10, and the diversion baffle 50 is obliquely disposed between the liquid guiding pipe joint 11 and the bottom wall of the body fluid container 10.
When the body fluid directly drops on the liquid level in the container, the liquid level fluctuates up and down due to ripple effect caused by water wave interference, so that the light reflection floater 30 vibrates, and the laser ranging data fluctuates to generate data errors. Therefore, the baffle 50 is designed in the container, the lower end of the liquid guide pipe joint 11 is arranged on the upper side of the baffle 50, and the baffle 50 is obliquely arranged in the body fluid container 10. The body fluid that flows in drops on this water conservancy diversion baffle 50 earlier, and the body fluid flows into the body fluid in the container again along water conservancy diversion baffle 50 to prevent that the liquid level is undulant, avoid influencing laser rangefinder precision.
Specifically, the body fluid container 10 is a transparent plastic container. The laser distance measuring device 20 and the body fluid container 10 are designed to be detachable and separated, and are not designed to be integrated. The laser distance measuring device 20 can be installed and fixed on various containers matched with the laser distance measuring device and can be detached from the containers, so that the laser distance measuring device 20 can be repeatedly used, and the use cost is reduced.
The embodiment of the application provides a biological body fluid on-line liquid level monitoring device, the calculation method of the body fluid volume in the body fluid container is divided into two conditions:
the first condition is that the body fluid entering the body fluid container is little, only gathers in the sampling tube, the fluid level does not exceed the sampling tube, the light reflection floater does not float, the small body fluid amount can not be accurately detected by the laser distance measuring device, when the light reflection floater floats by the body fluid, the flow rate and the dropping speed of the body fluid amount are calculated through an algorithm according to the starting time of the laser distance measuring device, the data time of the light reflection floater is received, and the volume of the inner wall of the sampling tube. For example: if the sampling tube 12 is circular in cross-section, 14mm in diameter and 12mm in height, so as to accommodate 1.85 ml of body fluid, calculated as about 0.05 ml per drop, then 37 drops of body fluid may fill the sampling outlet for the sampled body fluid.
The second situation is that the body fluid entering the body fluid container is large in amount, the liquid level is located in the body fluid container, the light reflection floater floats on the body fluid, the floating height of the light reflection floater is measured by the laser distance measuring device, the liquid level height in the body fluid container, the submerging height of the limiting rod and the submerging height of the flow guide baffle plate can be obtained through calculation, and then the volume of the body fluid container at the liquid level, the submerged volume of the limiting rod and the submerged volume of the flow guide baffle plate are calculated. The body fluid volume is the sum of the volume of the body fluid container at the liquid level and the volume of the sampling tube, and the volume of the limit rod which is submerged, the volume of the diversion baffle which is submerged and the volume of the light reflection floater which is not in the body fluid are subtracted.
The minimum error liquid volume provided by the invention is determined by the cross-sectional areas of the laser emitting head 21 and the laser receiving head 22 on the laser ranging device 20. For example, a laser transmitter-receiver integrated head having a length of 2.7cm,1.3cm is now commercially available. The volume cross-sectional area of the body fluid is 3.51cm 2 Height of 0.1cm and volume of 0.351cm 2 (0.351 ml). The error of 8 drops of body fluid was calculated as 0.05 ml per drop of body fluid as described above.
In order to meet the requirement of monitoring the clinical body fluid accuracy, the disposable body fluid container 10 with different sectional areas can be designed according to different positions of the container in clinical (urine, cerebrospinal fluid, subdural interstitial fluid, closed thoracic fluid and abdominal fluid) in a hanging way.
In the description of the embodiments of the present application, it should be understood that the terms "mounted," "connected," and "connected" are intended to be construed broadly and may include, for example, a fixed connection, an indirect connection through intervening media, a communication between two elements, or an interaction between two elements, unless expressly stated otherwise or limited otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. For example, may be performed in an order other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (5)
1. The online liquid level monitoring device for the biological body fluid is characterized by comprising a body fluid container, a laser ranging device and a light reflecting floater, wherein the light reflecting floater is positioned in the body fluid container;
the top of body fluid container is equipped with the drain pipe joint, the lower extreme of drain pipe joint with the inside intercommunication of body fluid container, the bottom of body fluid container is equipped with the sampling tube, the last with the inside intercommunication of body fluid container of sampling tube, the lower extreme of sampling tube is equipped with the tube cap.
The laser ranging device is placed at the top end of the body fluid container, and a laser emitting head and a laser receiving head are arranged at the bottom end of the laser ranging device.
2. The online biological body fluid level monitoring device according to claim 1, wherein two vertically arranged limiting rods are arranged in the body fluid container, and the limiting rods are fixed on the inner wall of the body fluid container;
the light reflection floater comprises a top plate and a lower convex column arranged at the bottom end of the top plate, two guide holes are formed in the top plate, and the two guide holes are respectively sleeved on the two limiting rods.
3. The online biological fluid level monitoring device of claim 2, wherein a flow guide baffle is arranged in the fluid container, and the flow guide baffle is obliquely arranged between the joint of the fluid guide pipe and the bottom wall of the fluid container.
4. The online biological fluid level monitoring device of claim 3, wherein the fluid container is a disposable transparent plastic container.
5. The device for online monitoring the liquid level of biological fluid according to claim 4, wherein a volume scale is arranged on the outer wall surface of the body fluid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211266132.XA CN115736819A (en) | 2022-10-17 | 2022-10-17 | Online liquid level monitoring device for biological body fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211266132.XA CN115736819A (en) | 2022-10-17 | 2022-10-17 | Online liquid level monitoring device for biological body fluid |
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| Publication Number | Publication Date |
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| CN115736819A true CN115736819A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211266132.XA Pending CN115736819A (en) | 2022-10-17 | 2022-10-17 | Online liquid level monitoring device for biological body fluid |
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- 2022-10-17 CN CN202211266132.XA patent/CN115736819A/en active Pending
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