A urine monitoring device with dynamic bladder pressure measurement function

Abstract

The present invention relates to the technical field of medical devices, and particularly relates to a urine monitoring device with a dynamic bladder pressure measurement function, including a catheter. The catheter includes a front end portion, and a first opening is provided at the front end of the catheter. An anti-blocking assembly is arranged inside the front end portion. The anti-blocking assembly includes a cutting member and a telescopic rod. One end portion of the telescopic rod is a first end portion, and the other end portion is a second end portion. One end of the cutting member is rotatably connected to the side wall of the front end portion, and the other end is rotatably connected to the first end portion. The second end portion is fixed relative to the front end portion. The telescopic rod is communicated with a first air pipe. By injecting or extracting gas into the first air pipe, the telescopic rod is extended or shortened. During the telescopic process of the telescopic rod, the deflection angle of the cutting member relative to the side wall of the front end portion changes. The urine monitoring device with a dynamic bladder pressure measurement function of the present application can reduce the probability of air bubble generation in the catheter, thereby improving the accuracy of the bladder pressure value measured by the external pressure sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a urine monitoring device with a dynamic bladder pressure measurement function. Background Art

[0002] Bladder pressure measurement is an important clinical method for evaluating lower urinary tract function and diagnosing bladder dysfunction. It conducts the pressure in the bladder to an external pressure sensor through a catheter for real-time monitoring.

[0003] During the process of dynamic bladder pressure measurement, the pressure in the patient's bladder can be monitored during continuous urination of the patient, so as to record the changes in the bladder pressure during urination in real time.

[0004] However, when there are air bubbles in the catheter, the air bubbles will interfere with the stability of pressure transmission, resulting in errors in the bladder pressure values measured by the external pressure sensor. The larger the volume of the air bubbles in the catheter, the greater the error in the bladder pressure values measured by the external pressure sensor. At the same time, catheter obstruction is one of the main reasons for the generation of air bubbles in the catheter. When the catheter is blocked by substances with a relatively large volume such as blood clots or pus clots, it will cause the pressure in the bladder to increase, forcing gas into the catheter, thus affecting the stability of pressure transmission and causing errors in the bladder pressure values measured by the external pressure sensor.

[0005] Therefore, how to reduce the probability of air bubble generation in the catheter during the process of dynamic bladder pressure measurement to improve the accuracy of the bladder pressure values measured by the external pressure sensor is a technical problem that urgently needs to be solved at present. Summary of the Invention

[0006] The purpose of the present invention is to provide a urine monitoring device with a dynamic bladder pressure measurement function to improve the accuracy of the bladder pressure values measured by the external pressure sensor, aiming at the problem that the catheter generates air bubbles due to obstruction during the process of dynamic bladder pressure measurement, resulting in relatively large errors in the measured bladder pressure values.

[0007] To achieve the above invention purpose, the present invention provides the following technical solutions:

[0008] A urine monitoring device with a dynamic bladder pressure measurement function includes a catheter. The catheter includes a front end portion located at the front end of the catheter. A first opening is provided at the front end of the catheter for liquid to flow in.

[0009] An anti-blocking component is arranged inside the front end part. The anti-blocking component includes a cutting piece and a telescopic rod. The cutting piece is used for cutting blood clots, pus clots or tissues. Both the cutting piece and the telescopic rod have a telescopic function. One end part of the telescopic rod is the first end part, and the other end part is the second end part. One end of the cutting piece is rotatably connected to the side wall of the front end part, and the other end is rotatably connected to the first end part. The second end part is fixed relative to the front end part;

[0010] The telescopic rod is communicated with a first air pipe. By injecting or extracting gas into the first air pipe, the gas volume inside the telescopic rod is changed to make the telescopic rod extend or shorten;

[0011] During the telescopic process of the telescopic rod, the deflection angle of the cutting piece relative to the side wall of the front end part changes; when the telescopic rod is in the shortest state, an included angle α is formed between the cutting piece and the side wall of the front end part. The opening direction of the included angle α deviates from the first opening, and the included angle α is an acute angle; when the telescopic rod is in the longest state, an included angle β is formed between the cutting piece and the side wall of the front end part. The opening direction of the included angle β faces the first opening, and the included angle β is an acute angle.

[0012] As a preferred technical solution of the present application, the number of the cutting pieces is several, and the several cutting pieces are distributed around the central axis of the front end part.

[0013] As a preferred technical solution of the present application, the cutting piece includes a first cutter and a second cutter. Blades are arranged on both the first cutter and the second cutter. The length direction of the first cutter is the same as that of the second cutter. The first cutter is sleeved with the second cutter. The first cutter is rotatably connected to the side wall of the front end part, and the second cutter is rotatably connected to the first end part.

[0014] As a preferred technical solution of the present application, the first cutter is sleeved outside the second cutter. A plurality of barbs are arranged on the first cutter. The plurality of barbs are distributed along the length direction of the first cutter. The barbs are used for pulling blood clots, pus clots or tissues.

[0015] As a preferred technical solution of the present application, the opening direction of the barb faces the second cutter.

[0016] As a preferred technical solution of the present application, the telescopic rod includes a plurality of sub-rods. The adjacent sub-rods are sleeved with each other. The plurality of sub-rods together form a first chamber. The first chamber is communicated with the first air pipe. When the gas volume in the first chamber is reduced, the telescopic rod shortens. When the gas volume in the first chamber is increased, the telescopic rod extends.

[0017] As a preferred technical solution of the present application, the anti-blocking component further includes a support frame. The support frame is arranged on the side wall of the front end part. The second end part of the telescopic rod is arranged on the support frame;

[0018] The telescopic rod is located at the central axis of the front end portion.

[0019] As a preferred technical solution of the present application, when the telescopic rod is in the longest state, the first end portion is exposed from the first opening, and the cutting member is not exposed from the first opening.

[0020] As a preferred technical solution of the present application, the front end portion includes a hard segment and a soft segment, the hardness of the hard segment is greater than that of the soft segment, and both the support frame and the cutting member are connected to the hard segment;

[0021] The first opening is located on the soft segment.

[0022] As a preferred technical solution of the present application, it further includes a driving assembly, the driving assembly is communicated with the first air pipe, and the driving assembly is used for periodically injecting or extracting gas into the first air pipe to make the telescopic rod periodically extend or shorten.

[0023] As a preferred technical solution of the present application, the output end of the urinary catheter is communicated with a first connecting pipe, the first connecting pipe is communicated with a first output pipe and a second output pipe, the first output pipe is connected to a pressure sensor for measuring bladder pressure, and the second output pipe is used for connecting a urine collection device to collect the urine discharged by the patient.

[0024] Compared with the prior art, the beneficial effects of the present invention:

[0025] 1. In the scheme of the present application, when dynamic bladder pressure measurement is performed, an external pressure sensor is connected to the output end of the urinary catheter. In the process of monitoring the bladder pressure of the patient during urination, the telescopic rod is extended or shortened by reciprocatingly injecting or extracting gas into or out of the first trachea, so that the deflection angle of the cutting piece relative to the side wall of the front end portion changes. In this way, in the process of the telescopic rod changing from the shortest state to the longest state, the angle between the cutting piece and the side wall of the front end portion changes, so that the opening direction of the angle formed by the cutting piece gradually changes from away from the first opening to the first opening. In the process of urine in the bladder flowing into the urinary catheter through the first opening and being discharged to the outside of the body, for patients undergoing bladder surgery, , there is a probability that there are blood clots, pus clots or tissues in the patient's bladder blood. After the blood clots, pus clots or tissues flow to the first opening together with urine, the cutting piece can contact the blood clots, pus clots or tissues to cut the blood clots, pus clots or tissues, thereby reducing the volume of a single blood clot, pus clot or tissue to avoid a larger volume of blood clots, pus clots or tissues being blocked in the urinary catheter; at the same time, as the deflection angle of the side wall of the cutting piece relative to the front end portion changes, in the process of the cutting piece moving relative to the front end portion toward the blood clot, pus clot or tissue, the impact force on the corresponding blood clot, pus clot or tissue can be increased, and the cutting effect of the cutting piece when cutting the blood clot, pus clot or tissue can be further improved;

[0026] Furthermore, when the cutting piece cuts a larger or thicker blood clot, pus clot or tissue, there will be openings on some of the blood clots, pus clots or tissue, but the blood clots, pus clots or tissue are not completely cut, so that the corresponding blood clots, pus clots or tissue are still on the cutting piece. At this time, with the extension and retraction of the telescopic rod, the deflection angle of the side wall of the cutting piece relative to the front end portion changes, so that the inclination direction of the cutting piece changes back and forth. When the cutting piece is tilted upward, that is, the opening direction of the angle formed between the cutting piece and the side wall of the front end portion is toward the first opening. At this time, under the push of the liquid flow, the blood clot, pus clot or tissue on the cutting piece can move along the length direction of the cutting piece toward the direction away from the central axis of the front end portion. Similarly, with the deflection of the cutting piece, when the cutting piece is tilted downward, that is, the cutting piece and the front end portion are The opening direction of the angle formed between the side walls of the end portion is away from the first opening. Under the impetus of the liquid flow, the blood clot, pus clot or tissue on the cutting piece can move along the length direction of the cutting piece toward the central axis direction close to the front end portion. In this way, the blood clot, pus clot or tissue on the cutting piece can be reciprocated along the length direction of the cutting piece until the blood clot, pus clot or tissue is cut by the cutting piece. Thus, on the one hand, the cutting efficiency of larger or thicker blood clots, pus clots or tissues can be further improved; on the other hand, the probability of blood clots, pus clots or tissues accumulating on the cutting piece for a long time is reduced, so that the cutting piece can maintain a good cutting ability for a long time, ensuring the cutting performance of the cutting piece; on the other hand, since the cutting piece can move, blood clots, pus clots or tissues are prevented from being blocked at the cutting piece;

[0027] Therefore, after the anti-blocking component cuts the blood clots, pus clots or tissues entering the catheter, it can cut the blood clots, pus clots or tissues, reduce the volume of a single blood clot, pus clot or tissue, and is easy to cut larger or thicker blood clots, pus clots or tissues, and can ensure the cutting performance of the cutting piece, thereby greatly reducing the probability of the catheter being blocked by blood clots, pus clots or tissues, and further reducing the probability of air bubbles generated in the catheter, so as to improve the accuracy of the bladder pressure value measured by the external pressure sensor;

[0028] 2. Further, the first cutter is sleeved on the outside of the second cutter, and a number of barbs are provided on the first cutter, and the barbs are located at the cutting edge of the first cutter. Since the first cutter is closer to the side wall of the front end than the second cutter, when the barbs on the first cutter pull the blood clots, pus clots or tissues, the pulled blood clots, pus clots or tissues are close to the side wall of the front end, so that the blood clots, pus clots or tissues cut by the cutting piece are more likely to flow into the catheter from the position close to the central axis of the front end. Under the viscous action between the fluid and the inner wall of the catheter, the resistance in the central area of the catheter is small and the fluid flow rate is high, while the resistance in the edge area of the catheter is large and the fluid flow rate is low. In this way, it is easier for the cut blood clots, pus clots or tissues to flow in the central area of the catheter, further reducing the probability of blood clots, pus clots or tissues adhering to the inner wall of the catheter, and further facilitating the discharge of blood clots, pus clots or tissues in the catheter during urination; and when more blood clots, pus clots or tissues flow into the first opening in a short time, because the barbs can pull the blood clots, pus clots or tissues, part of the blood clots, pus clots or tissues are pulled by the barbs, and part of the blood clots, pus clots or tissues flow into the catheter after being cut, thus avoiding a large amount of blood clots, pus clots or tissues flowing in the catheter together, and further reducing the risk of the catheter being blocked;

[0029] 3. Further, by making the opening direction of the barbs face the second cutter, when the cutting member is tilted upward, when blood clots, pus clots or tissues flow with urine and are cut by the cutting member, the barbs can play a pulling role, causing some blood clots, pus clots or tissues to be pulled by the barbs. As the deflection angle of the cutting member changes, due to the one-way pulling characteristic of the barbs, when the cutting member is tilted downward, under the push of the liquid flow, the barbs release the pulling effect on the blood clots, pus clots or tissues, enabling the blood clots, pus clots or tissues to move relative to the cutting member along the length direction of the cutting member. Furthermore, the blood clots, pus clots or tissues previously pulled by the barbs can be cut by the cutting member again, which can prevent the blood clots, pus clots or tissues from being pulled by the barbs for a long time. In this way, when a large amount of blood clots, pus clots or tissues flow into the first opening in a short time, the time for the blood clots, pus clots or tissues to pass through the anti-blocking component can be extended, so as to prevent a large number of cut blood clots, pus clots or tissues from flowing in the catheter at the same time, and at the same time reduce the probability of blood clots, pus clots or tissues remaining on the barbs;

[0030] 4. Further, when the telescopic rod is in the longest state, make the first end exposed from the first opening and make the cutting member not exposed from the first opening, so that during the reciprocating extension or shortening of the telescopic rod, the first end can be reciprocally exposed from the first opening or hidden in the front end. In this way, the probability of blockage of blood clots, pus clots or tissues at the first opening can be reduced, and at the same time, the cutting member can be prevented from being exposed from the first opening to avoid damage to the bladder side wall caused by the cutting member. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function according to the present application;

[0032] Figure 2 It is a partial structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function according to the present application when the telescopic rod is in the longest state;

[0033] Figure 3 It is a partial structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function according to the present application when the telescopic rod is in the shortest state;

[0034] Figure 4 It is a partial structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function according to the present application at the anti-blocking component;

[0035] Figure 5 It is a partial structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function according to the present application at the drive component;

[0036] Labels in the figure: 1 - urinary catheter, 2 - front end, 3 - first opening, 4 - anti - block component, 5 - cutting piece, 6 - telescopic rod, 7 - first end, 8 - second end, 9 - first air tube, 10 - first cutter, 11 - second cutter, 12 - barbs, 13 - sub - rod, 14 - first chamber, 15 - support frame, 16 - rigid section, 17 - soft section, 18 - drive component, 19 - drive motor, 20 - crank, 21 - connecting rod, 22 - piston rod, 23 - cylinder, 24 - first connecting pipe, 25 - first output pipe, 26 - second output pipe, 27 - pressure sensor. Detailed implementation mode

[0037] To make the objectives, 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 with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0038] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0042] Embodiment 1: A urine monitoring device with a dynamic bladder pressure measurement function provided in this embodiment is shown in Figures 1-5As shown, it includes a urinary catheter 1. The urinary catheter 1 includes a front end portion 2 which is located at the front end of the urinary catheter 1. A first opening 3 is provided at the front end of the urinary catheter 1, and the first opening 3 is used for liquid to flow in;

[0043] An anti-blocking component 4 is provided inside the front end portion 2. The anti-blocking component 4 includes a cutting piece 5 and a telescopic rod 6. The cutting piece 5 is used for cutting blood clots, pus clots or tissues. Both the cutting piece 5 and the telescopic rod 6 have telescopic functions. One end of the telescopic rod 6 is a first end portion 7, and the other end is a second end portion 8. One end of the cutting piece 5 is rotatably connected to the side wall of the front end portion 2, and the other end is rotatably connected to the first end portion 7. The second end portion 8 is fixed relative to the front end portion 2;

[0044] The telescopic rod 6 is communicated with a first air pipe 9. By injecting or extracting gas into the first air pipe 9, the amount of gas in the telescopic rod 6 is changed to make the telescopic rod 6 extend or shorten;

[0045] During the telescopic process of the telescopic rod 6, the deflection angle of the cutting piece 5 relative to the side wall of the front end portion 2 changes; when the telescopic rod 6 is in the shortest state, an included angle α is formed between the cutting piece 5 and the side wall of the front end portion 2. The opening direction of the included angle α is away from the first opening 3, and the included angle α is an acute angle; when the telescopic rod 6 is in the longest state, an included angle β is formed between the cutting piece 5 and the side wall of the front end portion 2. The opening direction of the included angle β is towards the first opening 3, and the included angle β is an acute angle.

[0046] In the present application, when dynamic bladder pressure measurement is performed, an external pressure sensor is connected to the output end of the urinary catheter 1. In the process of monitoring the bladder pressure of the patient during urination, the telescopic rod 6 is extended or shortened by reciprocatingly injecting or extracting gas into the first air tube 9, so that the deflection angle of the cutting piece 5 relative to the side wall of the front end portion 2 changes. In this way, in the process of the telescopic rod 6 changing from the shortest state to the longest state, the angle between the cutting piece 5 and the side wall of the front end portion 2 changes, so that the opening direction of the angle formed by them gradually changes from away from the first opening 3 to the first opening 3. In the process of urine in the bladder flowing into the urinary catheter 1 through the first opening 3 and discharged to the outside of the body, for patients undergoing bladder surgery, , there is a probability that there are blood clots, pus clots or tissues in the patient's bladder blood. After the blood clots, pus clots or tissues flow toward the first opening 3 together with the urine, the cutting piece 5 can contact the blood clots, pus clots or tissues to cut the blood clots, pus clots or tissues, thereby reducing the volume of a single blood clot, pus clot or tissue to avoid a larger volume of blood clots, pus clots or tissues from being blocked in the urinary catheter 1; at the same time, as the deflection angle of the cutting piece 5 relative to the side wall of the front end portion 2 changes, in the process of the cutting piece 5 moving relative to the front end portion 2 toward the blood clot, pus clot or tissue, the impact force on the corresponding blood clot, pus clot or tissue can be increased, and the cutting effect of the cutting piece 5 when cutting the blood clot, pus clot or tissue can be further improved;

[0047] And when the cutting member 5 cuts larger or thicker blood clots, pus clots or tissues, there will be openings cut on some blood clots, pus clots or tissues, but the blood clots, pus clots or tissues are not completely cut, so that the corresponding blood clots, pus clots or tissues still remain on the cutting member 5. At this time, with the telescopic movement of the telescopic rod 6, the deflection angle of the cutting member 5 relative to the side wall of the front end portion 2 changes, causing the inclination direction of the cutting member 5 to change reciprocally. When the cutting member 5 inclines upward, that is, the opening direction of the included angle formed between the cutting member 5 and the side wall of the front end portion 2 faces the first opening 3. At this time, under the push of the liquid flow, the blood clots, pus clots or tissues on the cutting member 5 can move along the length direction of the cutting member 5 away from the central axis direction of the front end portion 2. Similarly, as the cutting member 5 deflects, when the cutting member 5 inclines downward, that is, the opening direction of the included angle formed between the cutting member 5 and the side wall of the front end portion 2 deviates from the first opening 3. Under the push of the liquid flow, the blood clots, pus clots or tissues on the cutting member 5 can move along the length direction of the cutting member 5 towards the central axis direction of the front end portion 2. In this way, the blood clots, pus clots or tissues on the cutting member 5 can move reciprocally along the length direction of the cutting member 5 until the blood clots, pus clots or tissues are cut by the cutting member 5. Thus, on the one hand, it can further improve the cutting efficiency of larger or thicker blood clots, pus clots or tissues; on the other hand, it reduces the probability of blood clots, pus clots or tissues accumulating on the cutting member 5 for a long time, enabling the cutting member 5 to maintain good cutting ability and ensuring the cutting performance of the cutting member 5; on the further hand, since the cutting member 5 can move, it avoids blood clots, pus clots or tissues from blocking at the cutting member 5;

[0048] Thus, after the anti-blocking component 4 cuts the blood clots, pus clots or tissues entering the catheter 1, it can cut the blood clots, pus clots or tissues, reduce the volume of individual blood clots, pus clots or tissues, and is easy to cut larger or thicker blood clots, pus clots or tissues, and can ensure the cutting performance of the cutting member 5. Thus, it greatly reduces the probability of the catheter 1 being blocked by blood clots, pus clots or tissues, and further reduces the probability of air bubbles generated in the catheter 1, thereby improving the accuracy of the bladder pressure value measured by the external pressure sensor.

[0049] As a preferred embodiment, on the basis of the above method, further, the number of the cutting members 5 is several, and the several cutting members 5 are distributed around the central axis of the front end portion 2.

[0050] Furthermore, by arranging several cutting members 5, it can further improve the cutting efficiency of the cutting members 5 for blood clots, pus clots or tissues, and further reduce the risk of the catheter 1 being blocked by blood clots, pus clots or tissues.

[0051] As a preferred embodiment, on the basis of the above-described manner, further, the cutting member 5 includes a first cutter 10 and a second cutter 11. Blades are provided on both the first cutter 10 and the second cutter 11. The length direction of the first cutter 10 is the same as that of the second cutter 11. The first cutter 10 and the second cutter 11 are sleeved with each other. The first cutter 10 is rotatably connected to the side wall of the front end portion 2, and the second cutter 11 is rotatably connected to the first end portion 7.

[0052] Further, by providing the first cutter 10 and the second cutter 11 and providing blades on the first cutter 10 and the second cutter 11, and the blades face the first opening 3, so that the blades can cut blood clots, pus clots or tissues flowing in from the first opening 3, thereby facilitating the cutting member 5 to cut blood clots, pus clots or tissues. At the same time, the first cutter 10 and the second cutter 11 are sleeved with each other, so that the second cutter 11 can move relative to the first cutter 10 along the length direction of the first cutter 10. In this way, during the telescopic process of the telescopic rod 6, the second cutter 11 can move relative to the first cutter 10 to adapt to the deflection of the cutting member 5, thereby improving the smoothness of the movement of the telescopic rod 6 driving the cutting member 5.

[0053] Embodiment 2: On the basis of the technical solution of Embodiment 1, further, as shown in Figures 1-4 As shown, the first cutter 10 is sleeved outside the second cutter 11. A plurality of barbs 12 are provided on the first cutter 10. The plurality of barbs 12 are distributed along the length direction of the first cutter 10. The barbs 12 are used for pulling blood clots, pus clots or tissues.

[0054] Further, the first cutter 10 is sleeved on the outside of the second cutter 11, and a plurality of barbs 12 are arranged on the first cutter 10. The barbs 12 are located at the blade of the first cutter 10. Since the first cutter 10 is closer to the side wall of the front end portion 2 than the second cutter 11, when the barbs 12 on the first cutter 10 pull the blood clots, pus clots or tissues, the pulled blood clots, pus clots or tissues are close to the side wall of the front end portion 2, so that the blood clots, pus clots or tissues cut by the cutting member 5 are more likely to flow from the position close to the central axis of the front end portion 2 into the catheter 1. Under the viscous action between the fluid and the inner wall of the catheter 1, the resistance in the central area of the catheter 1 is small and the flow rate of the fluid is high, while the resistance in the edge area of the catheter 1 is large and the flow rate of the fluid is low. In this way, it is easier for the cut blood clots, pus clots or tissues to flow in the central area of the catheter 1, further reducing the probability of blood clots, pus clots or tissues adhering to the inner wall of the catheter 1, and further facilitating the discharge of blood clots, pus clots or tissues in the catheter 1 during urination; moreover, when a large amount of blood clots, pus clots or tissues flow into the first opening 3 in a short time, since the barbs 12 can pull the blood clots, pus clots or tissues, part of the blood clots, pus clots or tissues are pulled by the barbs 12, and part of the blood clots, pus clots or tissues flow into the catheter 1 after being cut, thus avoiding a large amount of blood clots, pus clots or tissues flowing in the catheter 1 together, and further reducing the risk of the catheter 1 being blocked.

[0055] As a preferred embodiment, on the basis of the above method, further, the opening direction of the barb 12 faces the second cutter 11.

[0056] Further, by making the opening direction of the barb 12 face the second cutter 11, when the cutting member 5 is tilted upward, when the blood clots, pus clots or tissues flow with the urine and are cut by the cutting member 5, the barb 12 can play a pulling role, so that part of the blood clots, pus clots or tissues are pulled by the barb 12. As the deflection angle of the cutting member 5 changes, due to the one-way pulling characteristic of the barb 12, when the cutting member 5 is tilted downward, under the push of the liquid flow, the barb 12 releases the pulling effect on the blood clots, pus clots or tissues, enabling the blood clots, pus clots or tissues to move relative to the cutting member 5 along the length direction of the cutting member 5, and further enabling the blood clots, pus clots or tissues previously pulled by the barb 12 to be cut by the cutting member 5 again, which can avoid the blood clots, pus clots or tissues being pulled by the barb 12 for a long time. In this way, when a large amount of blood clots, pus clots or tissues flow into the first opening 3 in a short time, the time for the blood clots, pus clots or tissues to pass through the anti-blocking component 4 can be prolonged, so as to avoid a large amount of cut blood clots, pus clots or tissues flowing in the catheter 1 together, and at the same time reduce the probability of blood clots, pus clots or tissues remaining on the barb 12.

[0057] Embodiment 3: On the basis of the technical solution of Embodiment 2, further, refer to Figures 1-5As shown, the telescopic rod 6 includes a plurality of sub-rods 13. The adjacent sub-rods 13 are sleeved with each other. The plurality of sub-rods 13 together form a first chamber 14. The first chamber 14 is communicated with the first air pipe 9. When the amount of gas in the first chamber 14 is reduced, the telescopic rod 6 shortens. When the amount of gas in the first chamber 14 is increased, the telescopic rod 6 elongates.

[0058] Furthermore, by providing a plurality of sub-rods 13, the plurality of sub-rods 13 together form the first chamber 14, so that when injecting or extracting gas into the first chamber 14, the telescopic rod 6 can be elongated or shortened, thereby improving the convenience of the length change of the telescopic rod 6.

[0059] As a preferred embodiment, on the basis of the above manner, further, the anti-blocking component 4 further includes a support frame 15. The support frame 15 is arranged on the side wall of the front end portion 2. The second end portion 8 of the telescopic rod 6 is arranged on the support frame 15;

[0060] The telescopic rod 6 is located on the central axis of the front end portion 2.

[0061] Furthermore, by providing the support frame 15, the stability of the second end portion 8 of the telescopic rod 6 relative to the front end portion 2 is improved. At the same time, the telescopic rod 6 is located on the central axis of the front end portion 2, which can make the plurality of cutting members 5 more evenly distributed in the front end portion 2, and can further improve the cutting effect of the cutting members 5 on blood clots, pus clots or tissues. The support frame 15 is a hollow structure for the blood clots, pus clots or tissues after cutting to pass through.

[0062] As a preferred embodiment, on the basis of the above manner, further, when the telescopic rod 6 is in the longest state, the first end portion 7 is exposed from the first opening 3, and the cutting member 5 is not exposed from the first opening 3.

[0063] Furthermore, when the telescopic rod 6 is in the longest state, the first end portion 7 is exposed from the first opening 3, and the cutting member 5 is not exposed from the first opening 3, so that during the reciprocating elongation or shortening process of the telescopic rod 6, the first end portion 7 can be reciprocally exposed from the first opening 3 or hidden in the front end portion 2. In this way, the probability of blockage of blood clots, pus clots or tissues at the first opening 3 can be reduced, and at the same time, the cutting member 5 can be prevented from being exposed from the first opening 3 to avoid damage to the bladder side wall by the cutting member 5.

[0064] As a preferred embodiment, on the basis of the above manner, further, the front end portion 2 includes a hard section 16 and a soft section 17. The hardness of the hard section 16 is greater than that of the soft section 17. The support frame 15 and the cutting member 5 are both connected to the hard section 16;

[0065] The first opening 3 is located on the soft section 17.

[0066] Furthermore, by connecting the support frame 15 and the cutting member 5 to the rigid section 16, the stability of the deflection of the cutting member 5 is improved when the telescopic rod 6 is driven to expand and contract.

[0067] As a preferred embodiment, on the basis of the above method, further, a driving assembly 18 is further included. The driving assembly 18 is communicated with the first air pipe 9, and the driving assembly 18 is used for periodically injecting or extracting gas into the first air pipe 9, so that the telescopic rod 6 periodically extends or contracts.

[0068] Furthermore, by arranging the driving assembly 18, the driving assembly 18 can periodically inject or extract gas into the first air pipe 9, so as to make the telescopic rod 6 periodically extend or contract during the urination process of the patient, which improves the convenience of the periodic extension and contraction of the telescopic rod 6; specifically, the driving assembly 18 includes a driving motor 19, a crank 20, a connecting rod 21, a piston rod 22 and a cylinder body 23. The crank 20 is connected to the output shaft of the driving motor 19. One end of the connecting rod 21 is rotatably connected to the crank 20, and the other end is rotatably connected to the piston rod 22. The cylinder body 23 is connected to the first air pipe 9. By driving the crank 20 to rotate by the driving motor 19, the connecting rod 21 drives the piston rod 22 to perform a linear motion, so as to reciprocally inject the gas in the cylinder body 23 into the first air pipe 9 or extract the gas in the first air pipe 9 into the cylinder body 23, and further reciprocally extend or contract the telescopic rod 6. The rotation speed of the driving motor 19 is adjustable, so as to facilitate the adjustment of the telescopic frequency of the telescopic rod 6. The specific rotation speed adjustment method of the driving motor 19 is the prior art, so it will not be elaborated here.

[0069] As a preferred embodiment, on the basis of the above method, further, the output end of the catheter 1 is communicated with a first connecting pipe 24. The first connecting pipe 24 is communicated with a first output pipe 25 and a second output pipe 26. The first output pipe 25 is connected to a pressure sensor 27. The pressure sensor 27 is used for measuring the bladder pressure. The second output pipe 26 is used for connecting a urine collection device to collect the urine discharged by the patient.

[0070] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A urine monitoring device with a dynamic bladder pressure measurement function, characterized in that: It includes a urinary catheter, and the urinary catheter includes a front end portion which is located at the front end of the urinary catheter. A first opening is provided at the front end of the urinary catheter, and the first opening is used for allowing liquid to flow in. An anti-blocking assembly is arranged inside the front end portion. The anti-blocking assembly includes a cutting member and a telescopic rod. The cutting member is used for cutting blood clots, pus clots or tissues. Both the cutting member and the telescopic rod have a telescopic function. One end of the telescopic rod is a first end portion, and the other end is a second end portion. One end of the cutting member is rotatably connected to the side wall of the front end portion, and the other end is rotatably connected to the first end portion. The second end portion is fixed relative to the front end portion. The telescopic rod is communicated with a first air pipe. By injecting or extracting gas into the first air pipe, the amount of gas inside the telescopic rod is changed, so that the telescopic rod extends or contracts. During the telescopic process of the telescopic rod, the deflection angle of the cutting member relative to the side wall of the front end portion changes. When the telescopic rod is in the shortest state, an included angle α is formed between the cutting member and the side wall of the front end portion. The opening direction of the included angle α faces away from the first opening, and the included angle α is an acute angle. When the telescopic rod is in the longest state, an included angle β is formed between the cutting member and the side wall of the front end portion. The opening direction of the included angle β faces the first opening, and the included angle β is an acute angle. The cutting member includes a first cutter and a second cutter. Blades are provided on both the first cutter and the second cutter, and the blades face the first opening. The length direction of the first cutter is the same as that of the second cutter. The first cutter is sleeved with the second cutter. The first cutter is rotatably connected to the side wall of the front end portion, and the second cutter is rotatably connected to the first end portion. The first cutter is sleeved outside the second cutter. A plurality of barbs are provided on the first cutter, and the barbs are located at the blades of the first cutter. The plurality of barbs are distributed along the length direction of the first cutter, and the barbs are used for pulling blood clots, pus clots or tissues. The opening direction of the barbs faces the second cutter. When the cutting member is tilted upward, when blood clots, pus clots or tissues flow with urine and are cut by the cutting member, the barbs can play a pulling role, so that part of the blood clots, pus clots or tissues are pulled by the barbs. With the change of the deflection angle of the cutting member, due to the one-way pulling characteristic of the barbs, when the cutting member is tilted downward, under the push of the liquid flow, the barbs release the pulling effect on the blood clots, pus clots or tissues, and can make the blood clots, pus clots or tissues move relative to the cutting member along the length direction of the cutting member.

2. The urine monitoring device with a dynamic bladder pressure measurement function according to claim 1, characterized in that: The number of the cutting members is several, and the several cutting members are distributed around the central axis of the front end portion.

3. The urine monitoring device with a dynamic bladder pressure measurement function according to claim 2, characterized in that: The telescopic rod includes several sub-rods, and adjacent sub-rods are sleeved with each other. The several sub-rods together form a first chamber, and the first chamber is communicated with the first air pipe. When the amount of gas in the first chamber is reduced, the telescopic rod contracts. When the amount of gas in the first chamber is increased, the telescopic rod extends.

4. The urine monitoring device with the function of dynamically measuring bladder pressure according to claim 3, characterized in that: The anti-blocking assembly further includes a support frame, and the support frame is arranged on the side wall of the front end portion. The second end portion of the telescopic rod is arranged on the support frame. The telescopic rod is located at the central axis of the front end portion.

5. The urine monitoring device with dynamic bladder pressure measurement function according to claim 4, characterized in that: When the telescopic rod is in the longest state, the first end portion is exposed from the first opening, and the cutting member is not exposed from the first opening.

6. The urine monitoring device with dynamic bladder pressure measurement function according to claim 5, characterized in that: The front end portion includes a hard section and a soft section, the hardness of the hard section is greater than that of the soft section, and both the support frame and the cutting member are connected to the hard section; The first opening is located on the soft section.

7. The urine monitoring device with a dynamic bladder pressure measurement function according to claim 6, characterized in that: It further includes a driving component, the driving component is communicated with the first air pipe, and the driving component is used for periodically injecting or extracting gas into the first air pipe to make the telescopic rod periodically extend or shorten.

Images