Urine monitoring device with dynamic bladder pressure measuring function

Abstract

The invention relates to the technical field of medical instruments, in particular to a urine monitoring device with a dynamic bladder pressure measuring function, which comprises a catheter, the catheter comprises a front end part, and the front end of the catheter is provided with a first opening; an anti-blocking assembly is arranged in the front end part and comprises a cutting piece and a telescopic rod, one end part of the telescopic rod is a first end part, the other end part of the telescopic rod is a second end part, one end of the cutting piece is rotationally connected with the side wall of the front end part, the other end of the cutting piece is rotationally connected with the first end part, and the second end part is fixed relative to the front end part; the telescopic rod is communicated with a first air pipe, and the telescopic rod is extended or shortened by injecting or extracting air into or out of the first air pipe; and in the telescopic process of the telescopic rod, the deflection angle of the cutting piece relative to the side wall of the front end part is changed. According to the urine monitoring device with the dynamic bladder pressure measuring function, the generation probability of bubbles in the catheter can be reduced, and therefore the accuracy of the bladder pressure value measured by the external pressure sensor is improved.

Description

Technical Field

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

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

[0003] During dynamic cystometry, the intra-bladder pressure of the patient can be monitored while the patient continues to urinate, so as to record the changes in the intra-bladder pressure during urination in real time.

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

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

[0006] The purpose of the present invention is to provide a urine monitoring device with dynamic bladder pressure measurement function to improve the accuracy of bladder pressure values ​​measured by an external pressure sensor in order to solve the problem that bubbles are generated by urinary catheter due to blockage during the current dynamic bladder pressure measurement process, thereby causing large errors in the measured bladder pressure values.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A urine monitoring device with a dynamic bladder pressure measurement function comprises a urinary catheter, wherein the urinary catheter comprises a front end portion, the front end portion is located at the front end of the urinary catheter, the front end of the urinary catheter is provided with a first opening, and the first opening is used for liquid to flow in; The front end portion is provided with an anti-blocking assembly, which includes a cutting piece and a telescopic rod. The cutting piece is used to cut blood clots, pus clots or tissues. Both the cutting piece and the telescopic rod have a telescopic function. One end of the telescopic rod is a first end, and the other end is a second end. One end of the cutting piece 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 connected to a first air pipe, and gas is injected into or extracted from the first air pipe to change the amount of gas in the telescopic rod, so that the telescopic rod is extended or shortened; During the extension and retraction 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 angle α is formed between the cutting member and the side wall of the front end portion, and the opening direction of the angle α is away from the first opening, and the angle α is an acute angle; when the telescopic rod is in the longest state, an angle β is formed between the cutting member and the side wall of the front end portion, and the opening direction of the angle β is toward the first opening, and the angle β is an acute angle.

[0008] As a preferred technical solution of the present application, there are several cutting pieces, and the several cutting pieces are distributed around the central axis of the front end portion.

[0009] As a preferred technical solution of the present application, the cutting piece includes a first cutter and a second cutter, both of which are provided with blades, the length direction of the first cutter is in the same direction as the length direction of the second cutter, the first cutter and the second cutter are nested, 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.

[0010] As the priority technical solution of the present application, the first cutting knife is set on the outside of the second cutting knife, and the first cutting knife is provided with a plurality of barbs, which are distributed along the length direction of the first cutting knife, and the barbs are used to pull blood clots, pus clots or tissues.

[0011] As a preferred technical solution of the present application, the opening direction of the barb is toward the second cutter.

[0012] As a preferred technical solution of the present application, the telescopic rod includes a plurality of sub-rods, adjacent sub-rods are nested with each other, and the plurality of sub-rods together form a first chamber, the first chamber is connected to a first air pipe, and when the amount of gas in the first chamber is reduced, the telescopic rod is shortened, and when the amount of gas in the telescopic first chamber is increased, the telescopic rod is extended.

[0013] As a preferred technical solution of the present application, the anti-blocking assembly further includes a support frame, the support frame is arranged on the side wall of the front end portion, and the second end of the telescopic rod is arranged on the support frame; The telescopic rod is located at the central axis of the front end portion.

[0014] 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 piece is not exposed from the first opening.

[0015] 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 the hardness of the soft segment, and the support frame and the cutting piece are both connected to the hard segment; The first opening is located on the soft segment.

[0016] As a preferred technical solution of the present application, it also includes a driving component, which is connected to the first air pipe and is used to periodically inject or extract gas into or out of the first air pipe to periodically extend or shorten the telescopic rod.

[0017] As a priority technical solution of the present application, the output end of the catheter is connected to a first connecting tube, the first connecting tube is connected to a first output tube and a second output tube, the first output tube is connected to a pressure sensor, the pressure sensor is used to measure bladder pressure, and the second output tube is used to connect to a urine collecting device to collect urine discharged by the patient.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 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; 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; Therefore, after the blood clot, pus clot or tissue entering the urinary catheter is cut by the anti-blocking component, the blood clot, pus clot or tissue can be cut to reduce the volume of a single blood clot, pus clot or tissue, and it is easy to cut a larger or thicker blood clot, pus clot or tissue, and the cutting performance of the cutting piece can be ensured, thereby greatly reducing the probability of the urinary catheter being blocked by the blood clot, pus clot or tissue, and further reducing the probability of bubbles generated in the urinary catheter, thereby improving the accuracy of the bladder pressure value measured by the external pressure sensor; 2. Further, the first cutter is sleeved on the outer side of the second cutter, and a plurality of barbs are provided on the first cutter, wherein the barbs are located at the blade of the first cutter. Since the first cutter is closer to the side wall of the front end portion than the second cutter, when the barbs on the first cutter pull 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, so that the blood clots, pus clots or tissues cut by the cutting member are more likely to flow into the urinary catheter from the portion close to the central axis of the front end portion. Under the effect of viscosity between the fluid and the inner wall of the urinary catheter, the resistance in the central area of ​​the urinary catheter is smaller, the flow rate of the fluid is higher, and the resistance in the edge area of ​​the urinary catheter is lower. The barbs are large and the flow rate of the fluid is low, so that the cut blood clots, pus clots or tissues are more likely 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 a large amount of blood clots, pus clots or tissues flow into the first opening in a short period of time, the barbs can pull the blood clots, pus clots or tissues, so that 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, thereby avoiding a large amount of blood clots, pus clots or tissues flowing together in the catheter, further reducing the risk of the catheter being blocked; 3. Furthermore, by making the opening direction of the barb toward the second cutting knife, when the cutting piece is tilted upward, when the blood clot, pus clot or tissue flows with urine and is cut by the cutting piece, the barb can play a pulling role, so that part of the blood clot, pus clot or tissue is pulled by the barb. As the deflection angle of the cutting piece changes, due to the unidirectional pulling characteristic of the barb, when the cutting piece is tilted downward, under the push of the liquid flow, the barb releases the pulling effect on the blood clot, pus clot or tissue, so that the blood clot, pus clot or tissue can move relative to the cutting piece along the length direction of the cutting piece, thereby making the blood clot, pus clot or tissue previously pulled by the barb can be cut by the cutting piece again, which can prevent the blood clot, pus clot or tissue from being pulled by the barb for a long time. In this way, when a large amount of blood clot, pus clot or tissue flows into the first opening in a short time, the time for the blood clot, pus clot or tissue to pass through the anti-blocking component can be extended, so as to prevent a large amount of cut blood clot, pus clot or tissue from flowing together in the catheter, and at the same time reduce the probability of blood clot, pus clot or tissue remaining on the barb. 4. Furthermore, when the telescopic rod is in its longest state, the first end is exposed from the first opening, and the cutting piece is not exposed from the first opening, so that during the reciprocating extension or shortening of the telescopic rod, the first end can be reciprocatingly exposed from the first opening or hidden in the front end. In this way, the probability of blood clots, pus clots or tissues blocking the first opening can be reduced, and at the same time, the cutting piece can be prevented from being exposed from the first opening, thereby preventing the cutting piece from damaging the side wall of the bladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic structural diagram of one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function of the present application; Figure 2 This is a partial structural schematic diagram of a urine monitoring device with a dynamic bladder pressure measurement function in one embodiment of the present application when the telescopic rod is in the longest state; Figure 3 This is a partial structural schematic diagram of a urine monitoring device with a dynamic bladder pressure measurement function in one embodiment of the present application when the telescopic rod is in the shortest state; Figure 4 This is a schematic diagram of a partial structure of an anti-blocking component in one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function of the present application; Figure 5 This is a schematic diagram of a partial structure of a driving component in one embodiment of a urine monitoring device with a dynamic bladder pressure measurement function of the present application; Markings in the figure: 1-catheter, 2-front end, 3-first opening, 4-anti-blocking component, 5-cutting piece, 6-telescopic rod, 7-first end, 8-second end, 9-first trachea, 10-first cutter, 11-second cutter, 12-barb, 13-sub-rod, 14-first chamber, 15-support frame, 16-hard section, 17-soft section, 18-drive assembly, 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 DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0021] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some 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.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] 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 invention product is usually placed when in 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] Embodiment 1: This embodiment provides a urine monitoring device with a dynamic bladder pressure measurement function, see Figure 1-Figure 5 As shown, it comprises a urinary catheter 1, the urinary catheter 1 comprises a front end portion 2, the front end portion 2 is located at the front end of the urinary catheter 1, the front end of the urinary catheter 1 is provided with a first opening 3, the first opening 3 is used for liquid to flow in; An anti-blocking assembly 4 is arranged in the front end portion 2, and the anti-blocking assembly 4 includes a cutting piece 5 and a telescopic rod 6. The cutting piece 5 is used to cut blood clots, pus clots or tissues. Both the cutting piece 5 and the telescopic rod 6 have a telescopic function. One end of the telescopic rod 6 is a first end 7, and the other end is a second end 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 7. The second end 8 is fixed relative to the front end portion 2; The telescopic rod 6 is connected to a first air pipe 9, and the amount of gas in the telescopic rod 6 is changed by injecting or extracting gas into the first air pipe 9, so as to extend or shorten the telescopic rod 6; During the extension and retraction 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; when the telescopic rod 6 is in the shortest state, an angle α is formed between the cutting member 5 and the side wall of the front end portion 2, and the opening direction of the angle α is away from the first opening 3, and the angle α is an acute angle; when the telescopic rod 6 is in the longest state, an angle β is formed between the cutting member 5 and the side wall of the front end portion 2, and the opening direction of the angle β is toward the first opening 3, and the angle β is an acute angle.

[0026] 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; And when the cutting piece 5 cuts a larger or thicker blood clot, pus clot or tissue, there will be openings cut on some of the 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 are still on the cutting piece 5. At this time, with the extension and retraction 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, so that the inclination direction of the cutting piece 5 changes back and forth. When the cutting piece 5 is tilted upward, that is, the opening direction of the angle formed between the cutting piece 5 and the side wall of the front end portion 2 is toward the first opening 3. At this time, under the impetus of the liquid flow, the blood clot, pus clot or tissue on the cutting piece 5 can move along the length direction of the cutting piece 5 toward the direction away from the central axis of the front end portion 2. Similarly, with the deflection of the cutting piece 5, when the cutting piece 5 is tilted downward, that is, the cutting piece 5 and the side wall of the front end portion 2 are The opening direction of the angle formed between the side walls of the front end portion 2 is away from the first opening 3. Under the impetus of the liquid flow, the blood clot, pus clot or tissue on the cutting member 5 can move along the length direction of the cutting member 5 toward the central axis direction close to the front end portion 2. In this way, the blood clot, pus clot or tissue on the cutting member 5 can be reciprocated along the length direction of the cutting member 5 until the blood clot, pus clot or tissue is cut by the cutting member 5. Therefore, 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 member 5 for a long time is reduced, so that the cutting member 5 can maintain a good cutting ability for a long time, ensuring the cutting performance of the cutting member 5; on the other hand, since the cutting member 5 can move, blood clots, pus clots or tissues are prevented from being blocked at the cutting member 5; Thus, after the blood clot, pus clot or tissue entering the catheter 1 is cut by the anti-blocking component 4, the blood clot, pus clot or tissue can be cut to reduce the volume of a single blood clot, pus clot or tissue, and it is easy to cut larger or thicker blood clots, pus clots or tissues, and the cutting performance of the cutting piece 5 can be ensured, thereby greatly reducing the probability of the catheter 1 being blocked by blood clots, pus clots or tissues, and further reducing the probability of bubbles generated in the catheter 1, thereby improving the accuracy of the bladder pressure value measured by the external pressure sensor.

[0027] As a preferred implementation, based on the above-mentioned 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 .

[0028] Furthermore, by providing a plurality of cutting members 5, the cutting efficiency of the cutting members 5 on blood clots, pus clots or tissues can be further improved, and the risk of the urinary catheter 1 being blocked by blood clots, pus clots or tissues can be further reduced.

[0029] As a preferred embodiment, on the basis of the above-mentioned method, further, the cutting element 5 includes a first cutter 10 and a second cutter 11, the first cutter 10 and the second cutter 11 are both provided with blades, the length direction of the first cutter 10 is in the same direction as the length direction of the second cutter 11, the first cutter 10 and the second cutter 11 are nested, 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.

[0030] Furthermore, by setting a first cutter 10 and a second cutter 11, and setting blades on the first cutter 10 and the second cutter 11, the blades face the first opening 3, so that the blades can cut the blood clots, pus clots or tissues flowing in from the first opening 3, so as to facilitate the cutting member 5 to cut the blood clots, pus clots or tissues. At the same time, the first cutter 10 and the second cutter 11 are nested, 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 extension and retraction 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 cutting member 5 driven by the telescopic rod 6.

[0031] Embodiment 2: Based on the technical solution of embodiment 1, further, see Figure 1-Figure 4 As shown, the first cutter 10 is sleeved on the outside of the second cutter 11, and the first cutter 10 is provided with a plurality of barbs 12, which are distributed along the length direction of the first cutter 10, and the barbs 12 are used to pull blood clots or pus clots or tissues.

[0032] Furthermore, the first cutter 10 is sleeved on the outer side of the second cutter 11, and a plurality of barbs 12 are provided on the first cutter 10, wherein 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 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 into the urinary catheter 1 from the portion close to the central axis of the front end portion 2. Under the effect of viscosity between the fluid and the inner wall of the urinary catheter 1, the resistance in the central area of ​​the urinary catheter 1 is small, the flow rate of the fluid is high, and the blood clots, pus clots or tissues in the central area of ​​the urinary catheter 1 are close to the side wall of the front end portion 2. The resistance in the edge area is larger and the flow rate of the fluid is lower, so that 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; and, when a large amount of blood clots, pus clots or tissues flow into the first opening 3 in a short period of time, since the barbs 12 can involve the blood clots, pus clots or tissues, part of the blood clots, pus clots or tissues are involved by the barbs 12, and part of the blood clots, pus clots or tissues flow into the catheter 1 after being cut, thereby avoiding a large amount of blood clots, pus clots or tissues flowing together in the catheter 1, further reducing the risk of the catheter 1 being blocked.

[0033] As a preferred implementation, based on the above implementation, further, the opening direction of the barb 12 is toward the second cutter 11 .

[0034] Furthermore, by making the opening direction of the barb 12 toward the second cutting knife 11, when the cutting member 5 is tilted upward, when the blood clot, pus clot or tissue flows with urine and is cut by the cutting member 5, the barb 12 can play a pulling role, so that part of the blood clot, pus clot or tissue is pulled by the barb 12. As the deflection angle of the cutting member 5 changes, due to the unidirectional 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 clot, pus clot or tissue, so that the blood clot, pus clot or tissue can be cut along the cutting member 5. 5 moves relative to the cutting member 5 in the length direction, so that the blood clot, pus clot or tissue previously entangled by the barb 12 can be cut by the cutting member 5 again, which can prevent the blood clot, pus clot or tissue from being entangled by the barb 12 for a long time. In this way, when more blood clot, pus clot or tissue flows into the first opening 3 in a short time, the time for the blood clot, pus clot or tissue to pass through the anti-blocking component 4 can be extended, so as to avoid a large amount of cut blood clot, pus clot or tissue flowing together in the catheter 1, and at the same time reduce the probability of blood clot, pus clot or tissue remaining on the barb 12.

[0035] Embodiment 3: Based on the technical solution of Embodiment 2, further, see Figure 1-Figure 5As shown, the telescopic rod 6 includes a plurality of sub-rods 13, and adjacent sub-rods 13 are mutually nested. The plurality of sub-rods 13 together form a first chamber 14, and the first chamber 14 is connected to the first air pipe 9. When the amount of gas in the first chamber 14 is reduced, the telescopic rod 6 is shortened, and when the amount of gas in the telescopic first chamber 14 is increased, the telescopic rod 6 is extended.

[0036] Furthermore, by providing a plurality of sub-rods 13 , the plurality of sub-rods 13 together form a first chamber 14 , so that when gas is injected into or extracted from the first chamber 14 , the telescopic rod 6 is extended or shortened, thereby improving the convenience of changing the length of the telescopic rod 6 .

[0037] As a preferred embodiment, on the basis of the above-mentioned manner, further, the anti-blocking assembly 4 further includes a support frame 15, the support frame 15 is arranged on the side wall of the front end portion 2, and the second end portion 8 of the telescopic rod 6 is arranged on the support frame 15; The telescopic rod 6 is located at the central axis of the front end portion 2 .

[0038] Furthermore, by providing a support frame 15, the stability of the second end 8 of the telescopic rod 6 relative to the front end 2 is improved. At the same time, the telescopic rod 6 is located at the central axis of the front end 2, so that the plurality of cutting members 5 can be more evenly distributed in the front end 2, which can further improve the cutting effect of the cutting members 5 on blood clots, pus clots or tissues, wherein the support frame 15 is a hollow structure to facilitate the passage of cut blood clots, pus clots or tissues.

[0039] As a preferred embodiment, based on 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 .

[0040] Furthermore, when the telescopic rod 6 is in its longest state, the first end portion 7 is exposed at the first opening 3, and the cutting member 5 is not exposed at the first opening 3, so that during the reciprocating extension or shortening of the telescopic rod 6, the first end portion 7 can be reciprocatingly exposed at the first opening 3 or hidden in the front end portion 2. In this way, the probability of blood clots, pus clots or tissues blocking the first opening 3 can be reduced, and at the same time, the cutting member 5 can be prevented from being exposed at the first opening 3, thereby preventing the cutting member 5 from damaging the side wall of the bladder.

[0041] As a preferred embodiment, on the basis of the above-mentioned manner, further, the front end portion 2 includes a hard segment 16 and a soft segment 17, the hardness of the hard segment 16 is greater than the hardness of the soft segment 17, and the support frame 15 and the cutting member 5 are both connected to the hard segment 16; The first opening 3 is located on the soft segment 17 .

[0042] Furthermore, by connecting the support frame 15 and the cutting member 5 to the hard section 16, the stability of the deflection of the cutting member 5 is improved when the telescopic rod 6 is driven to extend or retract.

[0043] As a preferred embodiment, on the basis of the above-mentioned method, it further includes a driving component 18, which is connected to the first air pipe 9, and the driving component 18 is used to periodically inject or extract gas into the first air pipe 9 to make the telescopic rod 6 extend or shorten periodically.

[0044] Furthermore, by setting a driving assembly 18, the driving assembly 18 can periodically inject or extract gas into the first trachea 9, so that during the patient's urination process, the telescopic rod 6 can be periodically extended or shortened, thereby improving the convenience of periodically extending or shortening 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 23, wherein 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 connected to the piston rod 2 2 is rotatably connected, the cylinder 23 is connected to the first air pipe 9, and the driving motor 19 drives the crank 20 to rotate, so that the connecting rod 21 drives the piston rod 22 to make linear motion, so that the gas in the cylinder 23 is reciprocatingly injected into the first air pipe 9 or the gas in the first air pipe 9 is pumped into the cylinder 23, and then the telescopic rod 6 is reciprocatingly extended or shortened, wherein the speed of the driving motor 19 is adjustable, so as to facilitate the adjustment of the extension and retraction frequency of the telescopic rod 6. The specific speed adjustment method of the driving motor 19 is the existing technology, so it is not repeated here.

[0045] As a preferred embodiment, on the basis of the above-mentioned method, further, the output end of the urinary catheter 1 is connected with a first connecting tube 24, the first connecting tube 24 is connected with a first output tube 25 and a second output tube 26, the first output tube 25 is connected with a pressure sensor 27, the pressure sensor 27 is used to measure the bladder pressure, and the second output tube 26 is used to connect with a urine collecting device to collect urine discharged by the patient.

[0046] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A urine monitoring device with dynamic bladder pressure measurement function, characterized in that: A urinary catheter is included, wherein the urinary catheter includes a front end portion, the front end portion is located at the front end of the urinary catheter, the front end of the urinary catheter is provided with a first opening, and the first opening is used for liquid to flow in; An anti-blocking component is arranged in the front end portion, and the anti-blocking component includes a cutting piece and a telescopic rod. The cutting piece is used to cut blood clots, pus clots or tissues. Both the cutting piece and the telescopic rod have a telescopic function. One end of the telescopic rod is a first end, and the other end is a second end. One end of the cutting piece 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 connected to a first air pipe, and gas is injected into or extracted from the first air pipe to change the amount of gas in the telescopic rod, so that the telescopic rod is extended or shortened; During the extension and retraction 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 angle α is formed between the cutting member and the side wall of the front end portion, the opening direction of the angle α is away from the first opening, and the angle α is an acute angle; When the telescopic rod is in the longest state, an angle β is formed between the cutting member and the side wall of the front end portion, the opening direction of the angle β faces the first opening, and the angle β is an acute angle.

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

3. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 2, characterized in that: The cutting member includes a first cutter and a second cutter, both of which are provided with cutting edges, the length direction of the first cutter is in the same direction as the length direction of the second cutter, the first cutter and the second cutter are nested, 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.

4. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 3, characterized in that: The first cutter sleeve is arranged on the outer side of the second cutter. The first cutter is provided with a plurality of barbs, which are distributed along the length direction of the first cutter. The barbs are used to pull blood clots, pus clots or tissues.

5. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 4, characterized in that: The opening direction of the barb faces the second cutter.

6. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 5, characterized in that: The telescopic rod includes a plurality of sub-rods, adjacent sub-rods are mutually nested, and the plurality of sub-rods together form a first chamber, the first chamber is connected to a first air pipe, when the amount of gas in the first chamber is reduced, the telescopic rod is shortened, and when the amount of gas in the telescopic first chamber is increased, the telescopic rod is extended.

7. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 6, characterized in that: The anti-blocking assembly also includes a support frame, which is arranged on the side wall of the front end portion, and the second end of the telescopic rod is arranged on the support frame; The telescopic rod is located at the central axis of the front end portion.

8. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 7, characterized in that: When the telescopic rod is in the longest state, the first end is exposed from the first opening, and the cutting piece is not exposed from the first opening.

9. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 8, characterized in that: The front end portion includes a hard section and a soft section, the hardness of the hard section is greater than the hardness of the soft section, and the support frame and the cutting piece are both connected to the hard section; The first opening is located on the soft segment.

10. A urine monitoring device with dynamic bladder pressure measurement function as claimed in claim 9, characterized in that: The device also includes a driving component, which is connected to the first air pipe and is used to periodically inject or extract gas into or out of the first air pipe to periodically extend or shorten the telescopic rod.

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