Bladder urethra pressure measuring device

By using a one-way valve to control the flow rate and volume of saline in the bladder urethral pressure measurement device, the problem of infection caused by retrograde urination of the urinary catheter is solved, and the simultaneous measurement of bladder capacity and pressure is achieved, thus improving safety.

CN120678437APending Publication Date: 2025-09-23重庆市沙坪坝区人民医院
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202511089763.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

Existing bladder and urethral pressure measurement devices are prone to retrograde flow of the urinary catheter when measuring bladder and urethral pressure, which can lead to infection in patients.

Method used

A bladder urethral pressure measuring device was designed. It uses a one-way valve to control the flow rate and volume of physiological saline. The device simultaneously measures bladder capacity and pressure through a transfer tube, a heater, and a pressure gauge. The device also prevents backflow of physiological saline by adjusting the valve.

Benefits of technology

This method enables simultaneous measurement of bladder capacity and pressure, avoiding the risk of infection for patients and improving the safety and accuracy of the measurement process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120678437A_ABST
    Figure CN120678437A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of medical instruments, in particular to a bladder urethra pressure measuring device which comprises a supporting seat, a hook, a storage bottle, a transmission pipe, a heater, a catheter and a pressure measuring meter, the transmission pipe is provided with a control valve, the catheter is provided with an adjusting valve, and the flow speed of normal saline flowing into the heater can be controlled by arranging the control valve. Due to the fact that the catheter is communicated with the heater and the pressure measuring meter, normal saline can be transmitted into the bladder of a patient, the capacity of the bladder can be determined by measuring the flow of the normal saline, meanwhile, the pressure in the bladder is measured through the pressure measuring meter, and simultaneous measurement of the capacity and the pressure in the bladder is achieved. The flow rate of normal saline entering the bladder of a patient can be adjusted by arranging the adjusting valve, and the normal saline entering the bladder of the patient cannot flow back into the storage bottle due to the fact that the control valve and the adjusting valve are both one-way valves, so that infection of the patient is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a bladder and urethra pressure measuring device. Background Art

[0002] In urology, neurology, neurosurgery, geriatrics and rehabilitation departments, there are patients with urine storage or urination dysfunction. If not treated properly, it may lead to various complications such as urinary tract infection, urinary tract stones, hydronephrosis, renal failure, etc.

[0003] Currently, urodynamic measurement equipment is mostly used to measure the intra-bladder pressure. However, the existing intra-bladder pressure measurement equipment is not easy to control the water flow rate and water temperature, there are certain risks during use, and it will cause discomfort to patients.

[0004] Prior art CN210330591U discloses a bladder capacity and pressure measuring device. Physiological saline is injected into the bladder through a heater and the flow rate of the physiological saline is read. The bladder capacity can be determined by the flow rate of the physiological saline, and the pressure in the bladder is measured by a pressure measuring gauge. This bladder capacity and pressure measuring device can achieve simultaneous measurement of the capacity and pressure in the bladder, and has a simple structure, is easy to implement, and is low-cost.

[0005] However, when measuring bladder and urethra pressure, the above-mentioned bladder and urethra pressure measuring device needs to insert a catheter into the patient's bladder. The catheter is bidirectional, which makes the catheter prone to retrograde flow, thereby making the patient susceptible to infection. Summary of the Invention

[0006] The purpose of the present invention is to provide a cystourethral pressure measuring device, which aims to solve the problem that existing cystourethral pressure measuring devices require a catheter to be inserted into the patient's bladder when measuring cystourethral pressure. The catheter is bidirectional and is prone to retrograde flow, making the patient susceptible to infection.

[0007] To achieve the above-mentioned objectives, the present invention provides a bladder and urethra pressure measurement device, comprising a support base and a hook, wherein the number of the hooks is two and they are respectively arranged on the left and right sides of the support base, and further comprising a storage bottle, a transmission tube, a heater, a catheter and a pressure measurement gauge, wherein the storage bottle and the pressure measurement gauge are respectively hung on the hooks on the left and right sides, the heater is connected to the storage bottle through the transmission tube, the transmission tube has a control valve for controlling the flow rate of the physiological saline stored in the storage bottle to be transmitted to the heater, the heater and the pressure measurement gauge are both connected to the catheter, the catheter has a regulating valve for regulating the flow rate of the physiological saline heated in the heater to be transmitted to the patient's bladder, and the control valve and the regulating valve are both one-way valves to prevent backflow of the physiological saline into the patient's bladder.

[0008] The urinary catheter is a three-way tube, a first side of the urinary catheter is connected to the heater, a second side is connected to the pressure measuring gauge, and a third side is connected to the patient's bladder.

[0009] Wherein, the first side of the urinary catheter is connected to the heater via a connecting hose.

[0010] Wherein, the second side of the urinary catheter is connected to the pressure measuring gauge via a connecting tube.

[0011] Wherein, the bladder and urethra pressure measuring device further includes an adjusting component, and the adjusting component is used to adjust the height of the supporting seat.

[0012] Among them, the adjustment assembly includes a sliding rod, a screw rod, a support rod and a base, the sliding rod is arranged on the lower surface of the support seat, the screw rod is movably connected to the sliding rod and passes through the sliding rod, the support rod is arranged on the outside of the sliding rod, the screw rod is rotatably arranged inside the support rod, and the base is arranged on the lower surface of the support rod.

[0013] In which, the adjustment component also includes a control motor, a first gear and a second gear. The control motor is arranged on the upper surface of the base, and the output shaft of the control motor passes through the support rod. The first gear is connected to the output shaft of the control motor and is located inside the support rod. The second gear is engaged with the first gear and is fixed on the outside of the screw.

[0014] The present invention provides a bladder and urethra pressure measurement device. The present invention provides the control valve on the transmission tube, thereby controlling the flow rate of the physiological saline stored in the storage bottle being transmitted to the heater for heating. Thereafter, since the catheter is respectively connected to the heater and the pressure measuring gauge, the physiological saline can be transmitted to the patient's bladder, so that the bladder capacity can be determined by measuring the flow rate of the physiological saline. At the same time, the pressure in the bladder is measured by the pressure measuring gauge, thereby achieving simultaneous measurement of the capacity and pressure in the bladder. By providing the regulating valve on the catheter, the flow rate of the physiological saline entering the patient's bladder can be adjusted. Since the control valve and the regulating valve are both one-way valves, the physiological saline entering the patient's bladder cannot flow back into the storage bottle, thereby avoiding infection of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 FIG. 1 is a schematic diagram showing the overall structure of a cystourethral pressure measuring device according to a first embodiment of the present invention.

[0017] Figure 2 FIG. 1 is a schematic structural diagram of an adjusting assembly of a bladder-urethra pressure measuring device according to a second embodiment of the present invention.

[0018] Figure 3 FIG2 is a schematic cross-sectional view of a cystourethral pressure measuring device according to a second embodiment of the present invention, taken along a screw.

[0019] Figure 4 The bladder urethra pressure measuring device of the second embodiment of the present invention is Figure 3 Enlarged view of point A.

[0020] In the figure: 101-support base, 102-hook, 103-storage bottle, 104-transmission tube, 105-heater, 106-catheter, 107-pressure gauge, 108-control valve, 109-regulating valve, 110-connecting hose, 111-connecting pipe, 112-fixing part, 113-operation display screen, 201-sliding rod, 202-screw, 203-support rod, 204-base, 205-control motor, 206-first gear, 207-second gear, 208-fixing bolt. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0023] First embodiment

[0024] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram showing the overall structure of a cystourethral pressure measuring device according to a first embodiment of the present invention.

[0025] The present invention provides a bladder and urethra pressure measuring device, comprising a support base 101, a hook 102, a storage bottle 103, a transmission tube 104, a heater 105, a urinary catheter 106 and a pressure measuring gauge 107. The transmission tube 104 has a control valve 108, and the urinary catheter 106 has a regulating valve 109.

[0026] In this embodiment, the present invention provides the control valve 108 on the transmission tube 104, thereby controlling the flow rate of the saline stored in the storage bottle 103 being transmitted to the heater 105 for heating. Afterwards, since the urinary catheter 106 is respectively connected to the heater 105 and the pressure gauge 107, the saline can be transmitted to the patient's bladder, so that the bladder capacity can be determined by measuring the flow rate of the saline. At the same time, the pressure in the bladder is measured by the pressure gauge 107, thereby achieving simultaneous measurement of the capacity and pressure in the bladder. By providing the regulating valve 109 on the urinary catheter 106, the flow rate of the saline entering the patient's bladder can be adjusted. Since the control valve 108 and the regulating valve 109 are both one-way valves, the saline entering the patient's bladder cannot flow back into the storage bottle 103, thereby avoiding infection of the patient.

[0027] There are two hooks 102, which are respectively arranged on the left and right sides of the support base 101. The storage bottle 103 and the pressure gauge 107 are respectively hung on the hooks 102 on the left and right sides. The heater 105 is connected to the storage bottle 103 through the transmission tube 104. The transmission tube 104 has a control valve 108 for controlling the flow rate of the saline stored in the storage bottle 103 to be transmitted to the heater 105. The heater 105 and the pressure gauge 107 are both connected to the catheter 106. The catheter 106 has a regulating valve 109 for regulating the flow rate of the saline heated in the heater 105 to be transmitted to the patient's bladder. The control valve 108 and the regulating valve 109 are both one-way valves to avoid backflow of the saline into the patient's bladder.

[0028] Secondly, the catheter 106 is a three-way tube, a first side of the catheter 106 is connected to the heater 105, a second side is connected to the pressure gauge 107, and a third side is connected to the patient's bladder. The catheter 106 is in a Y-shape, and opposite sides of the catheter 106 are respectively connected to the heater 105 and the pressure gauge 107, while the other side of the catheter 106 is connected to the patient's bladder.

[0029] Again, the first side of the urinary catheter 106 is connected to the heater 105 via a connecting hose 110 , and the connecting hose 110 can be extended or shortened.

[0030] At the same time, the second side of the urinary catheter 106 is connected to the pressure gauge 107 via a connecting tube 111 , and the connecting tube 111 can be extended or shortened.

[0031] In addition, a fixing member 112 is provided on the outside of the urinary catheter 106 , and the fixing member 112 is used to fix the urinary catheter 106 .

[0032] Finally, an operation display screen 113 is provided on the outside of the heater 105 , and the operation display screen 113 is used to control the start and stop of the heater 105 and display the real-time heating temperature.

[0033] When using a bladder and urethra pressure measuring device of this embodiment, the heater 105 and the pressure measuring gauge 107 are hung on the hooks 102 on the left and right sides of the support base 101 respectively. Then, the connecting hose 110 and the connecting tube 111 are connected to the catheter 106 respectively, so that the connecting hose 110 and the connecting tube 111 are connected to the catheter 106 respectively, and the other side of the catheter 106 is connected to the patient's bladder. At this time, the connecting hose 110 and the connecting tube 111 can be extended or shortened so that the other side of the catheter 106 can be connected to the patient's bladder without moving the patient. Then, the catheter 106 is fixed in a fixed position by the fixing member 112 to prevent the catheter 106 from shaking and causing the connection between the catheter 106 and the connecting hose 110, the connecting tube 111 and the patient's bladder to loosen.

[0034] By adjusting the opening and closing degree of the control valve 108, the opening and closing degree of the transmission tube 104 can be adjusted, and then the flow rate of the physiological saline stored in the storage bottle 103 being transmitted to the heater 105 for heating can be adjusted. Afterwards, the operation instruction is input into the operation display screen 113, and the operation display screen 113 transmits the operation instruction to the heater 105, so as to control the start and stop of the heater 105. By starting the heater 105, the physiological saline entering the heater 105 can be heated. While the physiological saline is being heated, the operation display screen 113 can display the real-time temperature of the heating in real time.

[0035] After the saline solution in the heater 105 is heated, the saline solution heated in the heater 105 is transferred to the urinary catheter 106 via the connecting hose 110. At this time, the opening and closing degree of the urinary catheter 106 can be adjusted by adjusting the opening and closing degree of the regulating valve 109, thereby adjusting the flow rate of the saline solution entering the patient's bladder from the urinary catheter 106. This allows the bladder capacity to be determined by measuring the flow rate of the saline solution. While the saline solution is being transferred to the patient's bladder, the pressure in the bladder is measured by the pressure gauge 107, thereby achieving simultaneous measurement of the capacity and pressure in the bladder.

[0036] Since both the control valve 108 and the regulating valve 109 are one-way valves, they can doubly prevent the normal saline entering the patient's bladder from flowing back into the storage bottle 103, thereby avoiding the patient's infection. This solves the problem that the existing cystourethral pressure measurement device needs to insert a catheter into the patient's bladder when measuring the cystourethral pressure. The catheter is bidirectional and is prone to retrograde flow, thereby making the patient susceptible to infection.

[0037] In summary, the present invention provides the control valve 108 on the transmission tube 104, thereby controlling the flow rate at which the saline stored in the storage bottle 103 is transmitted to the heater 105 for heating. Afterwards, since the urinary catheter 106 is respectively connected to the heater 105 and the pressure gauge 107, the saline can be transmitted to the patient's bladder, so that the bladder capacity can be determined by measuring the flow rate of the saline. At the same time, the pressure in the bladder is measured by the pressure gauge 107, thereby achieving simultaneous measurement of the capacity and pressure in the bladder. By providing the regulating valve 109 on the urinary catheter 106, the flow rate of the saline entering the patient's bladder can be adjusted. Since the control valve 108 and the regulating valve 109 are both one-way valves, the saline entering the patient's bladder cannot flow back into the storage bottle 103, thereby avoiding infection of the patient.

[0038] Second embodiment

[0039] See also Figures 2 to 4 , Figure 2 FIG2 is a schematic structural diagram of an adjustment component of a bladder-urethra pressure measuring device according to a second embodiment of the present invention. Figure 3 FIG2 is a schematic cross-sectional view of a bladder-urethra pressure measuring device according to a second embodiment of the present invention, taken along the screw 202. Figure 4 The bladder urethra pressure measuring device of the second embodiment of the present invention is Figure 3 Based on the first embodiment, the bladder and urethra pressure measurement device of the present invention further includes an adjustment assembly, which includes a sliding rod 201, a screw rod 202, a support rod 203, a base 204, a control motor 205, a first gear 206 and a second gear 207.

[0040] In this embodiment, the adjustment component is located below the support base 101. By providing the adjustment component, the height of the support base 101 can be adjusted to meet usage requirements in different situations.

[0041] Among them, the sliding rod 201 is arranged on the lower surface of the support seat 101, the screw 202 is movably connected to the sliding rod 201 and passes through the sliding rod 201, the support rod 203 is arranged on the outside of the sliding rod 201, the screw 202 is rotatably arranged in the support rod 203, the base 204 is arranged on the lower surface of the support rod 203, the interior of the support rod 203 is a hollow structure, the sliding rod 201 is located in the support rod 203, the sliding rod 201 has a threaded hole, the screw 202 has an external thread, the sliding rod 201 and the screw 202 are connected by threads, so that the sliding rod 201 can rotate along the trajectory of the thread on the outside of the screw 202, and then drive the support seat 101 to move up and down above the base 204.

[0042] Secondly, the control motor 205 is arranged on the upper surface of the base 204, and the output shaft of the control motor 205 passes through the support rod 203. The first gear 206 is connected to the output shaft of the control motor 205 and is located in the support rod 203. The second gear 207 is engaged with the first gear 206 and is fixed on the outside of the screw 202. The output shaft of the control motor 205 is connected to the first gear 206 and drives the first gear 206 to rotate along its own axis. The second gear 207 is engaged with the first gear 206. 6 is engaged, so that the rotation of the first gear 206 along its own axis can drive the second gear 207 to rotate along its own axis in the support rod 203, and further drive the screw rod 202 to rotate along its own axis in the support rod 203. The rotation of the screw rod 202 along its own axis in the support rod 203 can drive the sliding rod 201 to rotate along the thread track outside the screw rod 202, and further drive the support seat 101 to move up and down above the base 204.

[0043] Again, the base 204 is fixedly installed at the position to be fixed by fixing bolts 208.

[0044] When using a bladder and urethra pressure measuring device of this embodiment, the base 204 is fixedly installed at the position to be fixed by the fixing screw. Thereafter, the control motor 205 is started so that the power output by the output shaft of the control motor 205 drives the first gear 206 to rotate along its own axis, thereby driving the second gear 207 to rotate along its own axis in the support rod 203, and then driving the screw 202 to rotate along its own axis in the support rod 203. Through the rotation of the screw 202 along its own axis in the support rod 203, the sliding rod 201 can be driven to rotate along the thread trajectory outside the screw 202, and then the support seat 101 can be driven to move up and down above the base 204, so as to adjust the height of the support seat 101 so as to meet the usage requirements in different situations.

[0045] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A bladder and urethra pressure measuring device, comprising a support base and hooks, wherein the hooks are two and are respectively arranged on the left and right sides of the support base, characterized in that: It also includes a storage bottle, a transfer tube, a heater, a urinary catheter and a pressure gauge, wherein the storage bottle and the pressure gauge are hung on the hooks on the left and right sides respectively, the heater is connected to the storage bottle through the transfer tube, the transfer tube has a control valve for controlling the flow rate of the physiological saline stored in the storage bottle to be transferred to the heater, the heater and the pressure gauge are both connected to the urinary catheter, the urinary catheter has a regulating valve for regulating the flow rate of the physiological saline heated in the heater to be transferred to the patient's bladder, and the control valve and the regulating valve are both one-way valves to prevent the backflow of the physiological saline into the patient's bladder.

2. The cystourethral pressure measuring device according to claim 1, wherein The urinary catheter is a three-way tube, a first side of the urinary catheter is connected to the heater, a second side is connected to the pressure measuring gauge, and a third side is connected to the patient's bladder.

3. The cystourethral pressure measuring device according to claim 2, wherein: The first side of the urinary catheter is communicated with the heater via a connecting hose.

4. The cystourethral pressure measuring device according to claim 2, wherein: The second side of the urinary catheter is communicated with the pressure gauge via a connecting tube.

5. The cystourethral pressure measuring device according to claim 1, wherein The bladder-urethra pressure measurement device further includes an adjustment component, which is used to adjust the height of the support seat.

6. The cystourethral pressure measuring device according to claim 5, wherein: The adjustment assembly includes a sliding rod, a screw rod, a support rod and a base. The sliding rod is arranged on the lower surface of the support seat. The screw rod is movably connected to the sliding rod and passes through the sliding rod. The support rod is arranged on the outside of the sliding rod. The screw rod is rotatably arranged inside the support rod. The base is arranged on the lower surface of the support rod.

7. The cystourethral pressure measuring device according to claim 6, wherein: The adjustment assembly also includes a control motor, a first gear and a second gear. The control motor is arranged on the upper surface of the base. The output shaft of the control motor passes through the support rod. The first gear is connected to the output shaft of the control motor and is located inside the support rod. The second gear is engaged with the first gear and is fixed on the outside of the screw.

Citation Information

Patent Citations

  • Bladder capacity and pressure measuring device

    CN210330591U