Urination function exercise device

Abstract

This invention belongs to the field of medical device technology, specifically relating to a urination function training device, including a catheter and a pressure switch. The pressure switch has an upper shell, a lower shell, a first piston, and an elastic element. The lower shell is threadedly connected to the upper shell and can move up and down. The lower shell has a drain port. The first piston slides within the upper shell, and the elastic element pushes the first piston. The upper shell has a drain port and a limiting element. The lower shell contains a sealing assembly, including first and second piston chambers, second and third pistons, hydraulic fluid, a sealing ring, an inner slide cylinder, and an outer slide cylinder. The outer slide cylinder has a through groove. The elastic element is a threaded spring. Both the upper and lower shells are transparent and have anti-slip textures. This invention has significant advantages. For urination pressure adjustment, the lower shell can be rotated to adjust the elastic element to set a threshold, enabling personalized training. The transparent shell and anti-slip texture design facilitate medical observation and operation, effectively improving the efficiency and quality of medical care, and providing a better solution for postoperative urination function training in prostate patients.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a device for training urination function. Background Technology

[0002] After prostate surgery, patients often need to undergo urinary function rehabilitation exercises. Traditional catheters are simply urine drainage tools and lack the ability to help patients exercise their urinary function. During the recovery process, patients need to gradually regain their ability to urinate independently, but current technology is insufficient in this regard, unable to effectively regulate urinary pressure according to the patient's recovery progress, which is not conducive to the patient's rapid recovery of normal urinary function. Therefore, there is a need for a device that can help prostate patients exercise their urinary function after surgery.

[0003] The methods described in this section are not necessarily methods that had been previously conceived or adopted. Unless otherwise specified, no method described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be accepted in any prior art. Summary of the Invention

[0004] To overcome the problems existing in related technologies, the present invention discloses a device for training urination function.

[0005] To achieve the above objectives, one technical solution adopted by the present invention is:

[0006] A urination function training device includes a catheter and a pressure switch connected to the catheter. The pressure switch includes an upper shell, a lower shell, a first piston, and an elastic element. The upper shell is a hollow structure with an open lower end, and the lower shell is a hollow structure with an open upper end. The upper end of the upper shell is connected to the catheter. The lower shell is threaded to the outside of the upper shell. When the lower shell rotates relative to the upper shell, it can move up and down relative to the upper shell. The lower shell has a drainage port on its lower side. The first piston is longitudinally sealed and slidably connected to the upper shell. A fluid guiding channel is opened at the upper end of the first piston, penetrating the circumference of the first piston. The elastic element is disposed in the lower shell to push the first piston upward so that the upper end of the first piston abuts against the top wall of the upper shell. When the upper end of the first piston abuts against the top wall of the upper shell, the side end of the fluid guiding channel is closed by the inner wall of the upper shell.

[0007] Furthermore, the upper end of the upper shell has a liquid inlet, and the urinary catheter is connected to the liquid inlet.

[0008] Furthermore, the upper shell is provided with a limiting member on its side. When the lower shell moves upward relative to the upper shell to abut against the limiting member, the limiting member will restrict the lower shell from continuing to move upward.

[0009] Furthermore, it also includes a sealing assembly disposed within the lower shell. The sealing assembly includes a first piston chamber, a second piston chamber, a second piston, and a third piston. The first piston chamber and the second piston chamber are both open at the top and interconnected at the bottom. The second piston is longitudinally and slidably connected to the first piston chamber, and the third piston is longitudinally and slidably connected to the second piston chamber. The shape of the third piston matches the shape of the upper shell. The portions of the first piston chamber and the second piston chamber located between the second piston and the third piston are filled with hydraulic fluid. The elastic element is also used to push the second piston downward, causing the second piston to push the hydraulic fluid in the first piston chamber downward, and causing the hydraulic fluid in the second piston chamber to push the third piston upward, so that the upper end of the third piston tightly abuts against the lower end of the upper shell to form a seal.

[0010] Furthermore, the sealing assembly also includes a sealing ring located between the upper end of the third piston and the lower end of the upper shell.

[0011] Furthermore, the sealing ring is fixed to the upper end of the third piston.

[0012] Furthermore, the sealing assembly also includes an inner slide cylinder and an outer slide cylinder. The inner slide cylinder and the outer slide cylinder are fixedly connected to the inner bottom wall of the lower shell at an internal and external interval. The drain port is located inside the inner slide cylinder. The second piston seal is slidably connected between the inner slide cylinder and the outer slide cylinder. The outer circumferential wall of the inner slide cylinder, the inner circumferential wall of the outer slide cylinder, and the inner bottom wall of the lower shell together form a first piston cavity. The third piston seal is slidably connected between the inner slide cylinder and the lower shell. The outer circumferential wall of the inner slide cylinder, the inner circumferential wall of the lower shell, and the inner bottom wall of the lower shell together form a second piston cavity.

[0013] Furthermore, the lower side of the outer sliding cylinder is provided with multiple through slots that extend both inside and outside, and the first piston chamber and the second piston chamber are connected through the through slots.

[0014] Furthermore, the elastic element is a threaded spring, and the upper and lower ends of the threaded spring abut against the first piston and the second piston, respectively.

[0015] Furthermore, both the upper shell and the lower shell are made of transparent material, and both the upper shell and the lower shell have anti-slip textures on their outer sides.

[0016] The postoperative urination function training device for prostate patients of the present invention has significant advantages over the prior art.

[0017] In terms of urination pressure regulation, existing technologies either lack effective regulation functions or are complex to adjust, making it difficult to make precise adjustments based on the patient's recovery status. However, this invention only requires rotating the lower shell to change the degree of compression of the elastic element to adjust the opening pressure of the first piston. Medical staff can easily set a suitable urination pressure threshold according to the patient's postoperative recovery stage, realizing personalized and progressive training, which is more conducive to the recovery of the patient's independent urination function.

[0018] Regarding sealing performance, other similar devices often suffer from urine leakage due to poor sealing structures, affecting usability and easily causing infection. The sealing assembly of this invention uses hydraulic transmission, employing an elastic element to push a second piston, causing hydraulic fluid to act on a third piston and tightly abut against the upper shell. A sealing ring further enhances the effect. Simultaneously, each piston slides and seals within its corresponding cavity. The inner and outer sliding cylinders work together to prevent urine leakage from installation gaps and other pathways, significantly improving reliability and safety.

[0019] Furthermore, traditional urination devices present challenges for medical staff in observing the internal workings and are inconvenient to operate, increasing the workload. The upper and lower shells of this invention are made of transparent material, allowing medical staff to easily observe urine flow, piston position, and other internal conditions, enabling timely detection of problems. The anti-slip textured design of the outer shell makes rotating the lower shell easier and more stable for medical staff, effectively improving the efficiency and quality of medical care and providing a superior solution for postoperative urination function training in prostate patients. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the invention;

[0022] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0025] Figure 5 This is a schematic diagram of the structure of the first piston in one embodiment of the present invention.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] Pressure switch 2, upper shell 21, liquid inlet 211, limiting member 212, lower shell 22, liquid outlet 221, first piston 23, liquid guiding channel 231, elastic member 24, sealing assembly 3, first piston chamber 31, second piston chamber 32, sealing ring 33, second piston 34, third piston 35, inner slide cylinder 36, outer slide cylinder 37, through groove 371. Detailed Implementation

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Reference Figures 1-5 As shown, the postoperative urination function training device for prostate patients in this embodiment includes a urinary catheter (not shown) and a pressure switch 2 connected to the urinary catheter. The pressure switch 2 is a key part of this device, and it includes an upper shell 21, a lower shell 22, a first piston 23, and an elastic element 24.

[0030] The upper shell 21 is a hollow structure with an opening at the lower end, and the lower shell 22 is a hollow structure with an opening at the upper end; the two fit together. The upper end of the upper shell 21 is connected to the catheter, and the lower shell 22 is threaded to the outside of the upper shell 21. By rotating the lower shell 22, the lower shell 22 can move up and down relative to the upper shell 21. The lower shell 22 has a drainage port 221 on its lower side for draining urine.

[0031] The first piston 23 is longitudinally and slidably connected within the upper shell 21, with a fluid guiding channel 231 extending through the circumference of the first piston 23 at its upper end. An elastic element 24 is located within the lower shell 22, its function being to push the first piston 23 upwards, ensuring that the upper end of the first piston 23 remains in contact with the top wall of the upper shell 21. When the upper end of the first piston 23 abuts against the top wall of the upper shell 21, the side end of the discharge port 221 is sealed by the inner wall of the upper shell 21, achieving a closing effect and preventing leakage of urine from the catheter.

[0032] In this embodiment, the upper shell 21 has a liquid inlet 211 at its upper end, and the catheter is connected to the liquid inlet 211 to ensure that urine flows smoothly into the pressure switch from the catheter. A limiting member 212 is provided on the side of the upper shell 21. When the lower shell 22 moves upward relative to the upper shell 21 to abut against the limiting member 212, the limiting member 212 will restrict the lower shell 22 from continuing to move upward, preventing excessive rotation from damaging the device.

[0033] The device also includes a sealing assembly 3 disposed within the lower housing 22. The sealing assembly 3 includes a first piston chamber 31, a second piston chamber 32, a second piston 34, and a third piston 35. Both the first piston chamber 31 and the second piston chamber 32 are open at the top and interconnected at the bottom. The second piston 34 is longitudinally and slidably connected to the first piston chamber 31, and the third piston 35 is longitudinally and slidably connected to the second piston chamber 32. The shape of the third piston 35 matches the shape of the upper housing 21. The portion of the first piston chamber 31 and the second piston chamber 32 located between the second piston 34 and the third piston 35 is filled with hydraulic fluid. The elastic member 24 not only pushes the first piston 23 upwards but also pushes the second piston 34 downwards, causing the second piston 34 to push the hydraulic fluid in the first piston chamber 31 downwards, and causing the hydraulic fluid in the second piston chamber 32 to push the third piston 35 upwards, so that the upper end of the third piston 35 tightly abuts against the lower end of the upper housing 21 to form a seal, preventing urine leakage from the installation gap between the upper housing 21 and the lower housing 22.

[0034] The sealing assembly 3 also includes a sealing ring 33 located between the upper end of the third piston 35 and the lower end of the upper shell 21 to enhance the sealing effect. The sealing ring 33 can be fixed to the upper end of the third piston 35.

[0035] In addition, the sealing assembly 3 also includes an inner slide cylinder 36 and an outer slide cylinder 37. The inner slide cylinder 36 and the outer slide cylinder 37 are fixedly connected to the inner bottom wall of the lower shell 22 at intervals. The drain port 221 is located inside the inner slide cylinder 36. The second piston 34 is slidably connected between the inner slide cylinder 36 and the outer slide cylinder 37. The outer circumferential wall of the inner slide cylinder 36, the inner circumferential wall of the outer slide cylinder 37, and the inner bottom wall of the lower shell 22 together form the first piston cavity 31. The third piston 35 is slidably connected between the inner slide cylinder 36 and the lower shell 22. The outer circumferential wall of the inner slide cylinder 36, the inner circumferential wall of the lower shell 22, and the inner bottom wall of the lower shell 22 together form the second piston cavity 32. The lower side of the outer slide cylinder 37 has multiple through grooves 371, and the first piston cavity 31 and the second piston cavity 32 are connected through the through grooves 371 to ensure that the hydraulic fluid can flow smoothly between the two piston cavities.

[0036] In this embodiment, the elastic element 24 is a threaded spring, with its upper and lower ends abutting against the first piston 23 and the second piston 34, respectively, providing suitable elastic force for the movement and sealing of the entire device. Both the upper shell 21 and the lower shell 22 are made of transparent material, making it convenient for medical personnel to observe the internal situation. The outer sides of both the upper shell 21 and the lower shell 22 are provided with anti-slip textures, making it easy for medical personnel to operate and rotate the lower shell 22.

[0037] When urine enters the upper shell 21 through the catheter, under normal circumstances, the elastic element 24 pushes the first piston 23 upward, causing it to abut against the top wall of the upper shell 21, preventing urine from flowing out. As the amount of urine in the bladder increases and the pressure increases, when the pressure overcomes the elastic force of the elastic element 24 and the sealing resistance inside the device, the first piston 23 moves downward. When the first piston 23 moves downward until the side end of the fluid channel 231 is unsealed, urine will enter the lower shell 22 through the fluid channel 231, and thus the urine can be discharged from the drain port 221.

[0038] Medical staff can change the degree of compression of the elastic element 24 by rotating the lower shell 22, thereby adjusting the pressure required for the first piston 23 to open, thus regulating the patient's urination pressure and achieving the purpose of exercising urination function.

[0039] The hydraulic transmission structure in the sealing assembly 3, under the action of the elastic element 24, ensures a good seal between the third piston 35 and the upper shell 21, preventing urine leakage.

[0040] When assembling the device, first install the first piston 23 into the upper shell 21, ensuring it can slide longitudinally in a sealed manner. Then, place the elastic element 24 into the lower shell 22. Next, install the various components of the sealing assembly 3, including the second piston 34 and the third piston 35, into their respective positions within the lower shell 22 according to the design, paying attention to the sealing and sliding connection of each piston and the filling of hydraulic fluid. Then, connect the lower shell 22 to the outside of the upper shell 21 via threads. Finally, connect the catheter to the inlet 211 of the upper shell 21. A collection container can be connected to the outlet 221 to collect urine.

[0041] When using this device after prostate surgery, medical staff adjust the compression of the elastic element 24 by rotating the lower shell 22, based on the patient's physical condition and recovery stage, thereby setting an appropriate urination pressure threshold. When urine accumulates in the patient's bladder and the pressure reaches the set threshold, urine is discharged through the pressure switch 2. During use, medical staff can observe the internal condition of the device through the transparent upper shell 21 and lower shell 22, and conveniently operate the rotation of the lower shell 22 using the anti-slip texture to further adjust the urination pressure. As the patient's recovery improves, the urination pressure threshold can be gradually increased to continuously train the patient's urination function.

[0042] During use, the device's sealing performance should be checked regularly, especially the sealing ring 33. Replace it promptly if it shows wear or aging. Also check the elasticity of the elastic element 24 and the smooth sliding of each piston. Keep the device clean during use to prevent urine residue from causing infection. Once the patient's urinary function has recovered to a certain extent, the device can be removed according to the doctor's instructions.

[0043] The urination function training device of the present invention can flexibly adjust the urination pressure by simply rotating the lower shell 22 according to the patient's recovery, effectively helping prostate patients to recover their independent urination function after surgery.

[0044] The sealing component 3 in the device, through hydraulic transmission and sealing ring 33, ensures good sealing performance, prevents urine leakage, and improves the reliability and safety of the device.

[0045] The upper shell 21 and lower shell 22 are made of transparent material and have an anti-slip texture design, which makes it convenient for medical staff to observe and operate, and helps to improve the efficiency and quality of medical care.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A urination function training device, comprising a urinary catheter and a pressure switch connected to the urinary catheter, characterized in that: The pressure switch includes an upper shell, a lower shell, a first piston, and an elastic element. The upper shell is a hollow structure with an opening at the lower end, and the lower shell is a hollow structure with an opening at the upper end. The upper end of the upper shell is connected to the catheter. The lower shell is threaded to the outside of the upper shell. When the lower shell rotates relative to the upper shell, it can move up and down relative to the upper shell. The lower shell has a drainage port on its lower side. The first piston is longitudinally sealed and slidably connected to the upper shell. A fluid guiding channel is opened at the upper end of the first piston, penetrating the circumference of the first piston. The elastic element is disposed in the lower shell to push the first piston upward so that the upper end of the first piston abuts against the top wall of the upper shell. When the upper end of the first piston abuts against the top wall of the upper shell, the side end of the fluid guiding channel is closed by the inner wall of the upper shell.

2. The urination function training device according to claim 1, characterized in that: The upper shell has a liquid inlet at its upper end, and the catheter is connected to the liquid inlet.

3. The urination function training device according to claim 1, characterized in that: The upper shell is provided with a limiting member on its side. When the lower shell moves upward relative to the upper shell to abut against the limiting member, the limiting member will restrict the lower shell from continuing to move upward.

4. The urination function training device according to claim 1, characterized in that: It also includes a sealing assembly disposed within the lower shell. The sealing assembly includes a first piston chamber, a second piston chamber, a second piston, and a third piston. The first piston chamber and the second piston chamber are both open at the top and interconnected at the bottom. The second piston is longitudinally and slidably connected to the first piston chamber, and the third piston is longitudinally and slidably connected to the second piston chamber. The shape of the third piston matches the shape of the upper shell. The portions of the first piston chamber and the second piston chamber located between the second piston and the third piston are filled with hydraulic fluid. The elastic element is also used to push the second piston downward, causing the second piston to push the hydraulic fluid in the first piston chamber downward, and causing the hydraulic fluid in the second piston chamber to push the third piston upward, so that the upper end of the third piston tightly abuts against the lower end of the upper shell to form a seal.

5. The urination function training device according to claim 4, characterized in that: The sealing assembly also includes a sealing ring located between the upper end of the third piston and the lower end of the upper shell.

6. The urination function training device according to claim 5, characterized in that: The sealing ring is fixed to the upper end of the third piston.

7. The urination function training device according to claim 4, characterized in that: The sealing assembly further includes an inner slide cylinder and an outer slide cylinder. The inner slide cylinder and the outer slide cylinder are fixedly connected to the inner bottom wall of the lower shell at an internal and external interval. The drain port is located inside the inner slide cylinder. The second piston seal is slidably connected between the inner slide cylinder and the outer slide cylinder. The outer circumferential wall of the inner slide cylinder, the inner circumferential wall of the outer slide cylinder, and the inner bottom wall of the lower shell together form a first piston cavity. The third piston seal is slidably connected between the inner slide cylinder and the lower shell. The outer circumferential wall of the inner slide cylinder, the inner circumferential wall of the lower shell, and the inner bottom wall of the lower shell together form a second piston cavity.

8. The urination function training device according to claim 7, characterized in that: The lower side of the outer slide cylinder has multiple through slots that extend both inside and outside, and the first piston chamber and the second piston chamber are connected through the through slots.

9. The urination function training device according to claim 4, characterized in that: The elastic element is a threaded spring, and the upper and lower ends of the threaded spring abut against the first piston and the second piston, respectively.

10. The urination function training device according to claim 1, characterized in that: Both the upper shell and the lower shell are made of transparent material, and both the upper shell and the lower shell have anti-slip textures on their outer sides.

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