Urine extraction and sampling device

Abstract

The invention discloses a urination and sampling device, comprising a shell, a drainage pipe is arranged at the bottom of the box body, and the drainage pipe is connected to a sewer; a sampling mechanism inside the box body comprises a funnel, the funnel is connected to the top wall of the box body, the bottom of the funnel is connected to a multi-step catheter, the bottom of the multi-step catheter is connected to a plurality of sampling boxes, and the other end of the catheter is connected to the drainage pipe; when urine passes through the automatic liquid guiding mechanism, an expansion body is melted by heat, the volume increases, and a telescopic rod and a sealing plate are driven to form a passage with a liquid guiding hole, so that urine is automatically collected; when the urine in the sampling box is fully collected, it is sealed by a floating plate of the sealing mechanism to prevent leakage and contamination of the urine sample.

Description

Technical Field

[0001] The invention belongs to the technical field of detection and sampling, and in particular relates to a urination and sampling device. Background Art

[0002] Urine test is a routine test. Different urine test items have different requirements and treatments for urine specimens. All urine specimens should be collected in clean containers. In order to increase the accuracy of the test, different test items may require urine at different stages. Currently, urine cups are generally used for collection by patients themselves. It is not easy for patients to grasp the timing of collecting urine, and it is easy to spill urine, affecting hygiene; it is also easy to cause urine contamination, affecting the accuracy of the test.

[0003] For some segmented sampling devices, although they can complete the sampling of urine at different stages, they generally require human assistance, and will not be automatically sealed after collection, so the collected urine may be contaminated. At present, for those who cannot urinate by themselves, a urinary catheter is generally used for urination. Using a urinary catheter to assist urination may cause urinary tract infection on the one hand, and on the other hand, due to the atrophy of the urination muscles caused by long-term disuse, the patient needs a long period of exercise and recovery in the later stage before he can urinate independently, and the sequelae are relatively obvious. In addition, when monitoring the patient's urine, the patient's urine continues to increase, and the urine content monitored in different postures may vary greatly, which affects the accuracy of the measurement results, resulting in unnecessary operations due to errors when urinating through a urinary catheter. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a urination and sampling device. By setting a seat plate of arbitrary elevation, it can adapt to men and women of any height, prevent urine from leaking during collection, and when urine passes through the automatic liquid guide mechanism, the expansion body melts when heated, and the volume increases, driving the telescopic rod and the sealing plate to form a passage with the liquid guide hole, so as to automatically collect urine; when the urine in the sampling box is full, it is sealed by the floating plate of the sealing mechanism to prevent leakage and contamination of the urine sample; when the urine in the sampling box is not full, the sealing mechanism cannot be sealed, and the expansion body is cooled, the volume is reduced, and the first spring rebounds to drive the telescopic rod and the sealing plate to seal, so as to prevent the urine sample in the sampling box from being contaminated by the outside world, thereby improving the accuracy of urine detection; through the auxiliary urination system, patients who cannot urinate independently can be assisted in urination, and urinary tract infection caused by the catheter can be avoided, with high safety; by processing the collected bladder pressure data, the accuracy of the bladder urine content is improved, so that patients can urinate in time.

[0005] The present invention provides the following technical solutions:

[0006] A urine discharge and sampling device comprises a shell, wherein one end of the shell is connected to a motor, the output shaft of the motor is connected to a rotating shaft, the other end of the rotating shaft is connected to the inner wall of the shell, two first bevel gears are symmetrically arranged on the rotating shaft, the two first bevel gears are meshedly connected to a second bevel gear, the two second bevel gears are connected to a screw rod, the two screw rods extend outside the shell, and the screw rods and the shell are rotated in a gap, the other ends of the two screw rods are rotatably connected to a top plate through a bearing, the two screw rods are provided with a moving block, and the two screw rods are connected to the inner wall of the shell. An inner spiral hole is opened at the center position of the moving block, and the moving block is rotatably connected with the screw rod through the inner spiral hole. A seat plate is connected between the two moving blocks, and a box body is provided under the seat plate. A sampling mechanism is provided inside the box body, and the sampling mechanism samples urine in sections. A drainage pipe is provided at the bottom of the box body, and the drainage pipe is connected to the sewer; the sampling mechanism inside the box body includes a funnel, and the funnel is connected to the top wall of the box body. The bottom of the funnel is connected to a multi-stage catheter, and the bottom of the multi-stage catheter is connected to multiple sampling boxes, and the other end of the catheter is connected to the drainage pipe.

[0007] Preferably, the bottom of the funnel is connected to a multi-order duct including a first-order duct, the bottom of the first-order duct is connected to a first sampling box, the other end of the first-order duct is connected to a second-order duct, the bottom of the second-order duct is connected to a second sampling box, the other end of the second-order duct is connected to a third-order duct, the bottom of the third-order duct is connected to a third sampling box, the other end of the third-order duct is connected to a connecting pipe, and the other end of the connecting pipe is connected to a drainage pipe; the first-order duct, the second-order duct, and the third-order duct are distributed in a stepped manner, the second-order duct is lower than the first-order duct, and the third-order duct is lower than the second-order duct.

[0008] Preferably, a connecting mechanism is provided between the multi-stage catheter and the multiple sampling boxes, the connecting mechanism includes a liquid conducting groove, the liquid conducting groove is connected to the bottom of the multi-stage catheter, an automatic liquid conducting mechanism is provided inside the liquid conducting groove, a sealing mechanism is connected below the liquid conducting groove, the outer side wall of the sealing mechanism is provided with a thread, and the sealing mechanism and the sampling box are movably connected through the thread.

[0009] Preferably, the automatic liquid guiding mechanism includes a sealing tube, the outer side wall of the sealing tube is connected to a fixing rod, and the sealing tube is connected to the inner wall of the liquid guiding groove through the fixing rod; a rubber layer is provided at one end of the sealing tube away from the sealing mechanism, an expansion body is provided inside the rubber layer, a piston plate is provided below the rubber layer, the piston plate is slidably connected to the inner side wall of the sealing tube, a telescopic rod is connected to the other side of the piston plate, the other end of the telescopic rod penetrates the sealing tube and extends to the interior of the sealing mechanism, and the telescopic rod and the sealing tube form a gap sliding connection.

[0010] Preferably, the sealing mechanism includes a cylinder, a liquid conduction hole is formed at one end of the cylinder close to the liquid conduction groove, the telescopic rod passes through the liquid conduction hole, the diameter of the liquid conduction hole is larger than the diameter of the telescopic rod, and the end of the telescopic rod located in the cylinder is connected to a sealing plate, and the sealing plate can be sealed and connected to the liquid conduction hole; a first spring is provided on the telescopic rod, one end of the first spring is connected to the cylinder, and the other end of the first spring is connected to the telescopic rod.

[0011] Preferably, the expansion body is a mixture of paraffin and lanolin, which can melt when heated and increase in volume, and can solidify and decrease in volume when the temperature drops.

[0012] Preferably, the sealing mechanism includes a cylinder, one end of which is connected to the liquid guiding groove, and the other end of which is an open structure. A blocking piece is provided inside the cylinder, and the blocking piece is made of rubber material. The blocking piece is provided with a leakage hole, and the cross-section of the leakage hole is a trapezoidal structure; two slide grooves are symmetrically provided on the inner side wall of the cylinder, and a floating plate is provided below the blocking piece. The inside of the floating plate is made of foam material, and both ends of the floating plate are connected with sliders, and the sliders are slidably connected to the slide grooves; a second spring is connected above the floating plate, and a sealing ball is connected to the other end of the second spring, and the sealing ball can be sealed and connected to the leakage hole.

[0013] Preferably, it also includes an auxiliary urination system, which includes a bladder frame, which is an arc-shaped semi-enclosed structure, arranged below the bladder and fixed on the pubic bone; the bladder frame is provided with a microcontroller and multiple pressure sensors, the multiple pressure sensors are evenly distributed on the inner wall of the bladder frame, the multiple pressure sensors are all connected to a data acquisition module, the data acquisition module is connected to the microcontroller, the microcontroller is provided with a power supply system, the power supply system is provided with a wireless charging receiving module, and is charged by a wireless charging sending module arranged outside the body; the microcontroller is provided with a Bluetooth transmission module, which is connected to a host computer via the Bluetooth transmission module, and the host computer wirelessly controls the ultrasonic transmitter.

[0014] Preferably, a urinary catheter valve is further provided on the bladder frame. The urinary catheter valve is made of biosilicone rubber. A through hole is provided in the middle of the urinary catheter valve, and a urethral tube is passed through the through hole. The upper end of the urinary catheter valve is connected to a biofilm body, and the biofilm body is in a surrounding structure. A liquid sac is provided inside the biofilm body, and a liquid medium is provided inside the liquid sac. The ultrasonic transmitter can act on the liquid medium.

[0015] In addition, when the patient can urinate independently, the seat plate can be automatically raised or lowered to a position suitable for the patient to urinate by starting the motor; the box body and the seat plate are movably connected by bolts, which is convenient for replacing and taking out the sampling box. When the patient's urine flows into the first-order catheter through the funnel, it flows into the first sampling tube through the liquid guide groove and the automatic liquid guide mechanism. When the first sampling tube is filled, the sealing mechanism of the first sampling tube is automatically sealed to prevent subsequent urine from continuing to enter the first sampling tube; then the urine enters the second-order catheter through the first-order catheter and continues to flow into the second sampling tube. When the second sampling tube is filled, the second The sealing mechanism of the sampling tube is sealed, and the urine enters the third-order catheter through the second-order catheter and continues to enter the third sampling box. When the third sampling box is full, the sealing mechanism of the third sampling box is closed, and the excess urine is discharged from the connecting tube through the drainage pipe; due to the stepped arrangement of the first-order catheter, the second-order catheter, and the third-order catheter, the urine first flows through the first-order catheter, so the first sampling box is the initial urine, the second sampling box is the middle urine, and the third sampling box is the latter urine. When sampling, the urine is automatically sampled in sections, which improves the sampling efficiency and the accuracy of urine stage selection, which is convenient for subsequent inspection.

[0016] In addition, when fresh urine passes through the first-order catheter, the urine first flows into the liquid guide groove, and the warm urine melts the expansion body in the rubber layer, so that the volume of the rubber layer increases, pushing the piston plate and the sealing plate to move downward, the first spring is compressed, the liquid guide hole and the sealing plate form a passage, and the urine flows into the cylinder through the liquid guide hole and enters the first sampling box through the leakage hole; when the urine in the first sampling box reaches the floating plate position, the floating plate floats upward, the slider moves in the slide groove, the floating plate drives the sealing ball to move upward, the second spring compresses the sealing ball, so that the sealing ball and the leakage hole are sealed to prevent urine from entering the first sampling box, and cut off the external path to prevent the sample urine from causing contamination; then the second sampling box and the third sampling box are sampled in the same way; when the sampling is completed, the stored urine in the multi-stage catheter has been discharged through the connecting tube, and the sampling box only needs to be unscrewed, and the floating plate will be reset by the action of gravity and the elastic force of the second spring, and the leakage hole continues to form a passage. The above situation is the situation that the sampling box can be filled. If the sampling box is filled, the float plate cannot seal the sampling box through buoyancy. At this time, in order to prevent the multi-stage catheter from connecting with the sampling box and contaminating the sampled urine, after the urine flows completely into the sampling box through the liquid guide groove, the temperature of the liquid guide groove decreases, which reduces the temperature of the expansion body. After the temperature decreases, the volume of the rubber layer decreases, and the telescopic rod receives the rebound force of the first spring, driving the sealing plate to move upward, so that the sealing plate and the liquid guide hole are sealed. At this time, the multi-stage catheter and the sampling tube form an isolated state, so that the sampling box is sealed when it is not full, preventing the urine in the sampling box from being infected. When the automatic liquid guide mechanism is sealed, in order to better seal and prevent leakage, further increase the sealing performance and prevent the sampled urine from being infected, the elastic force F of the first spring satisfies the temperature T of the urine, the volume v1 of the rubber layer before the expansion body melts, the volume v2 of the rubber layer after the expansion body melts, and the distance d moved by the telescopic rod, F = α·(T(v2-v1)) 1 / 2 / d; In the above formula, the unit of elastic force is N; the unit of temperature T is ℃, and the units of v2 and v1 are cm 3 ; d is in cm; α is the relationship coefficient, and its value range is 0.68-3.62. The above formula is an empirical formula.

[0017] In addition, if the patient is unable to urinate autonomously, he or she may urinate through an auxiliary urination system. The system detects the amount of urine in the bladder at any time by detecting the pressure in the bladder. When the amount of urine in the bladder reaches the set amount, the microcontroller transmits the data to the host computer, and the host computer wirelessly controls an ultrasonic transmitter arranged outside the body. The ultrasonic transmitter is worn on the abdomen of the patient. The ultrasonic transmitter acts on the urethral valve in the body to control the urethral valve to open for urination. When the urethral valve is controlled, when the liquid medium in the sac is not irradiated with ultrasonic waves, the liquid medium maintains a liquid shape, the sac body and the biofilm body both remain in a relaxed state, and the urethral valve is kept closed by its own elastic force due to the use of silicone rubber material. When it is detected that the amount of urine in the bladder reaches the discharge standard, the ultrasonic transmitter is started, the liquid medium in the sac is acted upon by ultrasonic waves, a cavitation effect is generated, and it vaporizes due to heat. The expansion of the sac drives the biofilm body to pull the urethral valve, and the urethral valve is deformed by the tensile force, and the urethral tube is opened for urination. The biofilm body and the sac are both made of silicone rubber. Since the urethral valve is small in size and elastic, in order to increase the accuracy of the urethral valve in opening the urethral tube, the opening amount l of the urethral tube and the tension f exerted on the urethral valve satisfy the following relationship: f=kl, where k is the elastic coefficient of the urethral tube; the relationship between the opening area S of the urethral valve, the stress σ of the urethral valve, and the elastic modulus E satisfies the following relationship: S=δ·l((σ+f) / CE); in the above formula, C is the mechanical property constant of the urethral valve, l is in mm, and f is in N; δ is the area coefficient, and its value range is 0.26-0.86.

[0018] In addition, when the amount of urine in the bladder is monitored by monitoring the pressure in the bladder, the pressure sensor adopts a resistive flexible sensor. The traditional pressure detection system detects the instantaneous pressure in the bladder by point detection and judges the urine according to the instantaneous pressure. However, due to the irregularity of the bladder in a non-upright environment, the urine capacity in the bladder and the pressure sensor do not have a linear relationship, and the obtained monitoring data will have a large data error; after obtaining the intra-bladder pressure data, this system transmits it to the host computer through the Bluetooth transmission module, and the host computer performs data processing. The data processing process is as follows: first, establish a data set M with the data points of each pressure sensor obtained, divide all the points in the data set into intervals according to the size of each data point, and the number of divided intervals is n; process the data points in the data set M, remove one-tenth of the large data points and one-tenth of the small data points, and obtain a subset m; then randomly select n subsets from the subset m to form a new set D, and then select n points from the n subsets in the set D as the initial clustering center; calculate all the data points F in the data set M k The Euclidean distance to each cluster center, the distance from a data point to the y-th cluster center point is the smallest, and the dictionary is defined as the points of the y-th class; all data points F kAfter the division is completed, the yth cluster center is updated by all the data points in the yth class. If there are x data points in the yth class, the new cluster center C y satisfy, Find C1, C2, ... C n As the new cluster center, repeat the above steps until the set bladder urine volume discharge level conditions are met, and the Euclidean distance between the cluster center and the data point is used as the bladder urine volume level output; through the above processing, when the patient is in any posture, the bladder urine volume level is output, which effectively reduces the urine volume detection error and greatly improves the accuracy of urine content.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The urination and sampling device of the present invention can be adapted to men and women of any height by providing a seat plate of any height, thereby preventing urine from leaking during collection. When urine passes through the automatic liquid guiding mechanism, the expansion body melts when heated, and the volume increases, thereby driving the telescopic rod and the sealing plate to form a passage with the liquid guiding hole, thereby automatically collecting urine. When the urine in the sampling box is full, it is sealed by the floating plate of the sealing mechanism to prevent leakage and contamination of the urine sample.

[0021] (2) In the urination and sampling device of the present invention, when the urine in the sampling box is not full, the sealing mechanism cannot perform sealing. After the expansion body is cooled, the volume is reduced, and the first spring rebounds to drive the telescopic rod and the sealing plate to seal, thereby preventing the urine sample in the sampling box from being contaminated by the outside world and improving the accuracy of urine testing. The auxiliary urination system is set up to assist urination for patients who cannot urinate independently and avoid urinary tract infections caused by catheters, with high safety.

[0022] (3) The urination and sampling device of the present invention has a stepped arrangement of the first-order catheter, the second-order catheter, and the third-order catheter. The urine first flows through the first-order catheter, so the first sampling box is the initial urine, the second sampling box is the middle urine, and the third sampling box is the final urine. When sampling, the urine is automatically sampled in sections, which improves the sampling efficiency and the accuracy of urine stage selection, making it easier to use for subsequent inspections.

[0023] (4) The urination and sampling device of the present invention obtains the Euclidean distance between the cluster center of the pressure data set and the pressure data point as the bladder urine volume level output. When the patient is in any posture, the bladder urine volume level is output, which effectively reduces the urine volume detection error and greatly improves the accuracy of urine content.

[0024] (5) The urination and sampling device of the present invention limits the relationship between the elastic force of the first spring and the temperature of urine, the volume of the rubber layer before the expansion body melts, the volume of the rubber layer after the expansion body melts, and the distance moved by the telescopic rod. When the automatic liquid guide mechanism is sealed, in order to better seal and prevent leakage, the sealing performance is further increased to prevent the sampled urine from being contaminated.

[0025] (6) The urination and sampling device of the present invention further increases the accuracy of the urethral tube opening by the urethral valve by limiting the relationship between the opening amount of the urethral tube and the tension exerted on the urethral valve, the opening area of ​​the urethral valve, the stress of the urethral valve, and the elastic modulus. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0029] Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention.

[0030] Figure 4 It is a schematic diagram of the connection structure between the sampling box and the multi-stage catheter of the present invention.

[0031] Figure 5 It is a schematic diagram of the sealing structure of the present invention.

[0032] Figure 6 It is a schematic diagram of the automatic liquid guiding mechanism of the present invention.

[0033] Figure 7 It is a block diagram of the auxiliary urination system of the present invention.

[0034] Figure 8 It is a flow chart of preprocessing of the acquired pressure data of the present invention.

[0035] Fig. 9 It is a data processing flow chart of the acquired pressure data of the present invention.

[0036] Fig.10 It is a schematic diagram of the urinary catheter valve control of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] Please refer to Figure 1-3 A urine discharge and sampling device comprises a shell 1, wherein one end of the shell 1 is connected to a motor 2, and a rotating shaft 3 is connected to the output shaft of the motor 2, and the other end of the rotating shaft 3 is connected to the inner wall of the shell 1, and two first bevel gears 4 are symmetrically arranged on the rotating shaft 3, and the two first bevel gears 4 are meshed and connected to the second bevel gear 5, and the two second bevel gears 5 are connected to a screw rod 6, and the two screw rods 6 extend outside the shell 1, and the screw rods 6 and the shell 1 are rotated in a gap, and the other ends of the two screw rods 6 are rotatably connected to a top plate 11 through a bearing, and the two screw rods 6 are provided with a moving block 7, and the two An inner spiral hole is opened at the center position of the movable block 7, and the movable block 7 is rotatably connected with the screw rod 6 through the inner spiral hole. A seat plate 8 is connected between the two movable blocks 7, and a box body 9 is provided below the seat plate 8. A sampling mechanism is provided inside the box body 9, and the sampling mechanism samples urine in sections. A drainage pipe 10 is provided at the bottom of the box body 9, and the drainage pipe 10 is connected to the sewer; the sampling mechanism inside the box body 9 includes a funnel 91, and the funnel 91 is connected to the top wall of the box body 9. The bottom of the funnel 91 is connected to a multi-stage catheter, and the bottom of the multi-stage catheter is connected to multiple sampling boxes, and the other end of the catheter is connected to the drainage pipe 10.

[0041] The bottom of the funnel 91 is connected to a multi-step conduit including a first-step conduit 92, the bottom of the first-step conduit 92 is connected to a first sampling box 96, the other end of the first-step conduit 92 is connected to a second-step conduit 93, the bottom of the second-step conduit 93 is connected to a second sampling box 97, the other end of the second-step conduit 93 is connected to a third-step conduit 94, the bottom of the third-step conduit 94 is connected to a third sampling box 98, the other end of the third-step conduit 94 is connected to a connecting pipe 95, and the other end of the connecting pipe 95 is connected to the drain pipe 10; the first-step conduit 92, the second-step conduit 93, and the third-step conduit 94 are distributed in a stepped manner, the second-step conduit 93 is lower than the first-step conduit 92, and the third-step conduit 94 is lower than the second-step conduit 93.

[0042] A connecting mechanism is provided between the multi-stage catheter and the multiple sampling boxes, and the connecting mechanism includes a liquid guide groove 961, and the liquid guide groove 961 is connected to the bottom of the multi-stage catheter. An automatic liquid guide mechanism 962 is provided inside the liquid guide groove 961, and a sealing mechanism 963 is connected below the liquid guide groove 961. The outer wall of the sealing mechanism 963 is provided with a thread, and the sealing mechanism 963 is movably connected to the sampling box through the thread.

[0043] When the patient can urinate independently, the motor 2 is started to automatically raise or lower the seat plate 8 to a position suitable for the patient to urinate; the box body 9 and the seat plate 8 are movably connected by bolts, which is convenient for replacing and taking out the sampling box. When the patient's urine flows into the first-order catheter 92 through the funnel 91, it flows into the first sampling tube through the liquid guide groove 961 and the automatic liquid guide mechanism 962. When the first sampling tube is filled, the sealing mechanism 963 of the first sampling tube is automatically sealed to prevent subsequent urine from continuing to enter the first sampling tube; then the urine enters the second-order catheter 93 through the first-order catheter 92 and continues to flow into the second sampling tube. When the second sampling tube is filled, the sealing mechanism 963 of the second sampling tube is automatically sealed to prevent subsequent urine from continuing to enter the first sampling tube; The urine enters the third-order conduit 94 through the second-order conduit 93 and then enters the third sampling box 98. When the third sampling box 98 is full, the sealing mechanism 963 of the third sampling box 98 is closed, and the excess urine is discharged from the connecting pipe 95 through the drain pipe 10. Due to the stepped arrangement of the first-order conduit 92, the second-order conduit 93 and the third-order conduit 94, the urine first flows through the first-order conduit 92, so the first sampling box 96 is the initial urine, the second sampling box 97 is the middle urine, and the third sampling box 98 is the last urine. When sampling, the urine is automatically sampled in sections, which improves the sampling efficiency and the accuracy of the urine stage selection, which is convenient for subsequent inspection.

[0044] Embodiment 2:

[0045] Please refer to Figure 4-6On the basis of the first embodiment, the automatic liquid guiding mechanism 962 includes a sealing tube 9621, the outer wall of the sealing tube 9621 is connected to a fixing rod 9622, and the sealing tube 9621 is connected to the inner wall of the liquid guiding groove 961 through the fixing rod 9622; a rubber layer 9623 is provided at one end of the sealing tube 9621 away from the sealing mechanism 963, and an expansion body 9624 is provided inside the rubber layer 9623, and a piston plate 9625 is provided below the rubber layer 9623, and the piston plate 9625 is slidably connected to the inner wall of the sealing tube 9621, and a telescopic rod 9628 is connected to the other side of the piston plate 9625, and the other end of the telescopic rod 9628 penetrates the sealing tube 9621 and extends to the inside of the sealing mechanism 963, and the telescopic rod 9628 and the sealing tube 9621 form a gap sliding connection.

[0046] The sealing mechanism 963 includes a cylinder 9631, and a liquid conduction hole 9627 is opened at one end of the cylinder 9631 close to the liquid conduction groove 961. The telescopic rod 9628 passes through the liquid conduction hole 9627, and the diameter of the liquid conduction hole 9627 is larger than the diameter of the telescopic rod 9628. The end of the telescopic rod 9628 located in the cylinder 9631 is connected to a sealing plate 9629, and the sealing plate 9629 can be sealed and connected to the liquid conduction hole 9627; the telescopic rod 9628 is provided with a first spring 9626, one end of the first spring 9626 is connected to the cylinder 9631, and the other end of the first spring 9626 is connected to the telescopic rod 9628.

[0047] The expansion body 9624 is a mixture of paraffin and lanolin, which can melt when heated and expand in volume, and can solidify and shrink in volume when the temperature drops.

[0048] The sealing mechanism 963 includes a cylinder 9631, one end of which is connected to the liquid guide groove 961, and the other end of the cylinder 9631 is an open structure. A plugging piece 9632 is provided inside the cylinder 9631, and the plugging piece 9632 is made of rubber. The plugging piece 9632 is provided with a leakage hole 9633, and the cross section of the leakage hole 9633 is a trapezoidal structure; two sliding grooves 9634 are symmetrically provided on the inner side wall of the cylinder 9631, and a floating plate 9635 is provided below the plugging piece 9632. The interior of the floating plate 9635 is made of foam material, and both ends of the floating plate 9635 are connected to sliders 9636, and the sliders 9636 are matched and slidably connected with the sliding grooves 9634; a second spring 9637 is connected above the floating plate 9635, and a sealing ball 9638 is connected to the other end of the second spring 9637, and the sealing ball 9638 can be sealed and connected with the leakage hole 9633.

[0049] When fresh urine passes through the first-order catheter 92, the urine first flows into the liquid guide groove 961, and the warm urine melts the expansion body 9624 in the rubber layer 9623, so that the volume of the rubber layer 9623 increases, pushing the piston plate 9625 and the sealing plate 9629 to move downward, the first spring 9626 is compressed, and the liquid guide hole 9627 and the sealing plate 9629 form a passage, and the urine flows into the cylinder 9631 through the liquid guide hole 9627 and enters the first sampling box 96 through the leakage hole 9633; when the urine in the first sampling box 96 reaches the position of the floating plate 9635, the floating plate 9635 floats upward, and the slider 9636 moves in the slide groove 963 4, the floating plate 9635 drives the sealing ball 9638 to move upward, and the second spring 9637 compresses the sealing ball 9638 to seal the sealing ball 9638 and the leakage hole 9633 to prevent urine from entering the first sampling box 96, and cut off the external path to prevent the sample urine from causing pollution; then the second sampling box 97 and the third sampling box 98 are sampled in the same way; when the sampling is completed, the stored urine in the multi-stage catheter has been discharged through the connecting tube 95, and the sampling box only needs to be unscrewed, then the floating plate 9635 will be reset by the action of gravity and the elastic force of the second spring 9637, and the leakage hole 9633 continues to form a passage. The above situation is the situation that the sampling box can be filled. If the sampling box is full, the float plate 9635 cannot seal the sampling box through buoyancy. At this time, in order to prevent the multi-stage catheter from being connected to the sampling box and contaminating the sampled urine, after the urine flows completely into the sampling box through the liquid guide groove 961, the temperature of the liquid guide groove 961 decreases, causing the temperature of the expansion body 9624 to decrease. After the temperature decreases, the volume of the rubber layer 9623 decreases, and the telescopic rod 9628 receives the rebound force of the first spring 9626, driving the sealing plate 9629 to move upward, so that the sealing plate 9629 and the liquid guide hole 9627 are sealed. At this time, the multi-stage catheter and the sampling tube are isolated, so that the sampling box is sealed when it is not full, preventing the urine in the sampling box from being contaminated. When the automatic liquid guiding mechanism 962 is sealed, in order to better seal, prevent leakage, further increase the sealing performance, and prevent the sampled urine from being infected, the elastic force F of the first spring 9626 satisfies the following relationship with the temperature T of the urine, the volume v1 of the rubber layer 9623 before the expansion body 9624 melts, the volume v2 of the rubber layer 9623 after the expansion body 9624 melts, and the distance d moved by the telescopic rod 9628: F = α·(T(v2-v1)) 1 / 2 / d; In the above formula, the unit of elastic force is N; the unit of temperature T is ℃, and the units of v2 and v1 are cm 3 ; d is in cm; α is the relationship coefficient, and its value range is 0.68-3.62. The above formula is an empirical formula.

[0050] Embodiment three:

[0051] like Figure 7-10As shown, on the basis of embodiment 1, an auxiliary urination system is also included, which includes a bladder rack 13, and the bladder rack 13 is an arc-shaped semi-enclosed structure, which is arranged below the bladder and fixed on the pubic bone; the bladder rack 13 is provided with a microcontroller and multiple pressure sensors, and the multiple pressure sensors are evenly distributed on the inner wall of the bladder rack 13, and the multiple pressure sensors are all connected to a data acquisition module, which is connected to the microcontroller, and the microcontroller is provided with a power supply system, and the power supply system is provided with a wireless charging receiving module, which is charged by a wireless charging sending module arranged outside the body; the microcontroller is provided with a Bluetooth transmission module, which is connected to a host computer through the Bluetooth transmission module, and the host computer wirelessly controls the ultrasonic transmitter 12.

[0052] The bladder frame 13 is also provided with a urinary catheter valve 14, which is made of biosilicone rubber. A through hole is opened in the middle of the urinary catheter valve 14, and a urethral tube 17 is penetrated and arranged in the through hole; the upper end of the urinary catheter valve 14 is connected to a biofilm body 15, and the biofilm body 15 is in a surrounding structure. A liquid capsule 16 is provided inside the biofilm body 15, and a liquid medium is provided inside the liquid capsule 16. The ultrasonic transmitter 12 can act on the liquid medium.

[0053] If the patient is unable to urinate autonomously, he or she may urinate through an auxiliary urination system. The system detects the amount of urine in the bladder at any time by detecting the pressure in the bladder. When the amount of urine in the bladder reaches the set amount, the microcontroller transmits the data to the host computer, and the host computer wirelessly controls the ultrasonic transmitter 12 set outside the body. The ultrasonic transmitter 12 is worn on the patient's abdomen. The ultrasonic transmitter 12 acts on the urethral valve 14 in the body to control the urethral valve 14 to open for urination. When the urethral valve is under control, when the liquid medium in the liquid bag 16 is not irradiated by the ultrasonic wave, the liquid The liquid medium maintains a liquid shape, the capsule and the biofilm body 15 both maintain a relaxed state, and the urethral valve 14 is made of silicone rubber and is kept closed by its own elastic force; when it is detected that the amount of urine in the bladder reaches the discharge standard, the ultrasonic transmitter 12 is started, and the liquid medium in the liquid capsule 16 is acted upon by the ultrasonic wave, producing a cavitation effect, and vaporizing due to heat. The liquid capsule 16 expands and drives the biofilm body 15 to pull the urethral valve 14, and the urethral valve 14 is deformed by the pulling force, and the urethral tube 17 is opened for urination; the biofilm body 15 and the liquid capsule 16 are both made of silicone. Since the urethra valve 14 is small in size and elastic, in order to increase the accuracy of the urethra valve 14 in opening the urethra tube 17, the opening amount l of the urethra tube 17 and the pulling force f applied to the urethra valve 14 satisfy the following relationship: f=kl, where k is the elastic coefficient of the urethra tube 17; the relationship between the opening area S of the urethra valve, the stress σ of the urethra valve 14, and the elastic modulus E satisfies the following relationship: S=δ·l((σ+f) / CE); in the above formula, C is the mechanical property constant of the urethra valve 14, l is in mm, and f is in N; δ is the area coefficient, and its value range is 0.26-0.86.

[0054] When the amount of urine in the bladder is monitored by monitoring the pressure in the bladder, the pressure sensor adopts a resistive flexible sensor. The traditional pressure detection system detects the instantaneous pressure in the bladder by point detection and judges the urine according to the instantaneous pressure. However, due to the irregularity of the bladder in a non-upright environment, the urine capacity in the bladder and the pressure sensor do not have a linear relationship, and the obtained monitoring data will have a large data error. After obtaining the intra-bladder pressure data, this system transmits it to the host computer through the Bluetooth transmission module, and the host computer processes the data. The data processing process is as follows: first, establish a data set M with the data points of each pressure sensor obtained, divide all the points in the data set into intervals according to the size of each data point, and the number of divided intervals is n; process the data points in the data set M, remove one tenth of the large data points and one tenth of the small data points, and obtain a subset m; then randomly select n subsets from the subset m to form a new set D, and then select n points from the n subsets in the set D as the initial clustering center; calculate all the data points F in the data set M kThe Euclidean distance to each cluster center, the distance from a data point to the y-th cluster center point is the smallest, and the dictionary is defined as the points of the y-th class; all data points F k After the division is completed, the yth cluster center is updated by all the data points in the yth class. If there are x data points in the yth class, the new cluster center C y satisfy, Find C1, C2, ... C n As the new cluster center, repeat the above steps until the set bladder urine volume discharge level conditions are met, and the Euclidean distance between the cluster center and the data point is used as the bladder urine volume level output; through the above processing, when the patient is in any posture, the bladder urine volume level is output, which effectively reduces the urine volume detection error and greatly improves the accuracy of urine content.

[0055] The device obtained by the above technical scheme is a urination and sampling device for urology. By setting a seat plate of arbitrary elevation, it can adapt to men and women of any height to prevent urine leakage during collection. When urine passes through the automatic liquid guide mechanism, the expansion body melts when heated and increases in volume, driving the telescopic rod and the sealing plate to form a passage with the liquid guide hole to automatically collect urine; when the urine in the sampling box is full, it is sealed by the floating plate of the sealing mechanism to prevent leakage and contamination of the urine sample; when the urine in the sampling box is not full, the sealing mechanism cannot be sealed, and the expansion body is cooled and its volume is reduced. The first spring rebounds to drive the telescopic rod and the sealing plate to seal, preventing the urine sample in the sampling box from being contaminated by the outside world, thereby improving the accuracy of urine detection; the auxiliary urination system provided can assist urination for patients who cannot urinate independently, and avoid urinary tract infections caused by catheters, with high safety. Due to the stepped arrangement of the first-order catheter, the second-order catheter, and the third-order catheter, urine first flows through the first-order catheter, so the first sampling box is the initial urine, the second sampling box is the middle urine, and the third sampling box is the last urine. When sampling, the urine is automatically sampled in sections, which improves the sampling efficiency and the accuracy of the urine stage selection, which is convenient for subsequent inspection. By obtaining the Euclidean distance between the cluster center of the pressure data set and the pressure data point as the level output of the bladder urine volume, when the patient is in any posture, the level of the bladder urine volume is output, which effectively reduces the urine volume detection error and greatly improves the accuracy of the urine content. By limiting the relationship between the elastic force of the first spring and the temperature of the urine, the volume of the rubber layer before the expansion body melts, the volume of the rubber layer after the expansion body melts, and the distance moved by the telescopic rod, when the automatic liquid guide mechanism is sealed, in order to better seal and prevent leakage, the sealing is further increased to prevent the sampled urine from being infected. By limiting the relationship between the opening amount of the urethral tube and the tension exerted on the urethral valve, the opening area of ​​the urethral valve, the stress of the urethral valve, and the elastic modulus, the accuracy of the urethral valve in opening the urethral tube is further increased.

[0056] Other technical solutions not elaborated in detail in the present invention are all existing technologies in the field and will not be described in detail here.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A urination and sampling device, characterized in that: The invention comprises a housing (1), wherein one end of the housing (1) is connected to a motor (2), an output shaft of the motor (2) is connected to a rotating shaft (3), the other end of the rotating shaft (3) is connected to the inner wall of the housing (1), two first bevel gears (4) are symmetrically arranged on the rotating shaft (3), the two first bevel gears (4) are meshingly connected to a second bevel gear (5), the two second bevel gears (5) are connected to a screw rod (6), the two screw rods (6) extend outside the housing (1), and the screw rods (6) and the housing (1) are arranged to rotate with a gap, the other ends of the two screw rods (6) are rotatably connected to a top plate (11) via a bearing, the two screw rods (6) are provided with a moving block (7), and the two moving blocks (7) are arranged to rotate with a gap between the screw rods (6) and the housing (1). An inner spiral hole is provided at the center of the moving block (7), and the moving block (7) is rotatably connected with the screw rod (6) through the inner spiral hole. A seat plate (8) is connected between the two moving blocks (7), and a box body (9) is provided below the seat plate (8). A sampling mechanism is provided inside the box body (9), and the sampling mechanism samples urine in sections. A drainage pipe (10) is provided at the bottom of the box body (9), and the drainage pipe (10) is connected to the sewer; the sampling mechanism inside the box body (9) comprises a funnel (91), and the funnel (91) is connected to the top wall of the box body (9). The bottom of the funnel (91) is connected to a multi-stage conduit, and the bottom of the multi-stage conduit is connected to a plurality of sampling boxes, and the other end of the conduit is connected to the drainage pipe (10); The bottom of the funnel (91) is connected to a multi-step conduit including a first-step conduit (92), the bottom of the first-step conduit (92) is connected to a first sampling box (96), the other end of the first-step conduit (92) is connected to a second-step conduit (93), the bottom of the second-step conduit (93) is connected to a second sampling box (97), the other end of the second-step conduit (93) is connected to a third-step conduit (94), the bottom of the third-step conduit (94) is connected to a third sampling box (98), the other end of the third-step conduit (94) is connected to a connecting pipe (95), and the other end of the connecting pipe (95) is connected to a liquid discharge pipe (10); the first-step conduit (92), the second-step conduit (93), and the third-step conduit (94) are distributed in a stepped manner, the second-step conduit (93) is lower than the first-step conduit (92), and the third-step conduit (94) is lower than the second-step conduit (93); A connection mechanism is provided between the multi-stage catheter and the plurality of sampling boxes, the connection mechanism comprising a liquid guiding groove (961), the liquid guiding groove (961) being connected to the bottom of the multi-stage catheter, an automatic liquid guiding mechanism (962) being provided inside the liquid guiding groove (961), a sealing mechanism (963) being connected below the liquid guiding groove (961), an outer wall of the sealing mechanism (963) being provided with a thread, and the sealing mechanism (963) being movably connected to the sampling box via the thread; The automatic liquid guiding mechanism (962) comprises a sealing tube (9621), the outer wall of the sealing tube (9621) is connected to a fixing rod (9622), and the sealing tube (9621) is connected to the inner wall of the liquid guiding groove (961) through the fixing rod (9622); a rubber layer (9623) is provided at one end of the sealing tube (9621) away from the sealing mechanism (963), an expansion body (9624) is provided inside the rubber layer (9623), a piston plate (9625) is provided below the rubber layer (9623), the piston plate (9625 is slidably connected to the inner wall of the sealing tube (9621), the other side of the piston plate (9625) is connected to a telescopic rod (9628), the other end of the telescopic rod (9628) penetrates the sealing tube (9621) and extends to the inside of the sealing mechanism (963), and the telescopic rod (9628) and the sealing tube (9621 form a gap sliding connection; The sealing mechanism (963) comprises a cylinder (9631), one end of the cylinder (9631) close to the liquid guiding groove (961) is provided with a liquid guiding hole (9627), the telescopic rod (9628) passes through the liquid guiding hole (9627), the diameter of the liquid guiding hole (9627) is larger than the diameter of the telescopic rod (9628), one end of the telescopic rod (9628) located in the cylinder (9631) is connected with a sealing plate (9629), and the sealing plate (9629) can be sealed and connected with the liquid guiding hole (9627); the telescopic rod (9628) is provided with a first spring (9626), one end of the first spring (9626) is connected to the cylinder (9631), and the other end of the first spring (9626) is connected to the telescopic rod (9628).

2. A urination and sampling device according to claim 1, characterized in that: The expansion body (9624) is a mixture of paraffin and lanolin, which can melt when heated and expand in volume, and can solidify and shrink in volume when the temperature drops.

3. A urination and sampling device according to claim 1, characterized in that: The sealing mechanism (963) comprises a cylinder (9631), one end of which is connected to the liquid guiding groove (961), and the other end of which is an open structure. A plugging member (9632) is provided inside the cylinder (9631), and the plugging member (9632) is made of rubber. The plugging member (9632) is provided with a leakage hole (9633), and the cross section of the leakage hole (9633) is a trapezoidal structure; two sliding grooves (9634) are symmetrically provided on the inner side wall of the cylinder (9631), and the plugging member (9632) is provided with a leakage hole (9633). A floating plate (9635) is provided below the plug (9632), the interior of the floating plate (9635) is made of foam material, both ends of the floating plate (9635) are connected with sliders (9636), and the sliders (9636) are matched and slidably connected with the slide groove (9634); a second spring (9637) is connected above the floating plate (9635), and the other end of the second spring (9637) is connected with a sealing ball (9638), and the sealing ball (9638) can be sealed and connected with the leakage hole (9633).

4. A urination and sampling device according to claim 1, characterized in that: The invention also comprises an auxiliary urination system, which comprises a bladder frame (13), wherein the bladder frame (13) is an arc-shaped semi-enclosed structure, arranged below the bladder and fixed on the pubic bone; the bladder frame (13) is provided with a microcontroller and a plurality of pressure sensors, wherein the plurality of pressure sensors are evenly distributed on the inner wall of the bladder frame (13); the plurality of pressure sensors are all connected to a data acquisition module, which is connected to the microcontroller; the microcontroller is provided with a power supply system, which is provided with a wireless charging receiving module, and is charged by a wireless charging sending module arranged outside the body; the microcontroller is provided with a Bluetooth transmission module, which is connected to a host computer via the Bluetooth transmission module, and the host computer wirelessly controls the ultrasonic transmitter (12).

5. A urination and sampling device according to claim 4, characterized in that: The bladder frame (13) is also provided with a urinary catheter valve (14), which is made of biosilicone rubber. A through hole is provided in the middle of the urinary catheter valve (14), and a urethral tube (17) is arranged through the through hole. The upper end of the urinary catheter valve (14) is connected to a biofilm body (15), which is in an enclosing structure. A liquid capsule (16) is provided inside the biofilm body (15), and a liquid medium is provided inside the liquid capsule (16). The ultrasonic transmitter (12) can act on the liquid medium.

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