An aspiration drainage device

Abstract

The application relates to a suction drainage device, comprising a cleaning assembly and a suction assembly. The cleaning assembly can move between the first end and the second end of the urinary tube through the stretching action of the first transmission line. The suction assembly comprises a sensor element and a suction pump, the sensor element is composed of a flow sensor and a temperature sensor, the sensor element is arranged in the first chamber of the urinary tube, and whether the urinary tube is blocked is judged based on the liquid and temperature information in the first chamber detected by the flow sensor and the temperature sensor. The first chamber of the urinary tube is cleaned of the blocking substances by the cleaning assembly, and the cleaned blocking substances are sucked out by the suction assembly. Compared with the prior art which adopts negative pressure or separately adopts suction to clean the blocking substances of the urinary tube, the cleaning efficiency of the application is higher, and a large amount of blocking substances adhered in the urinary tube can also be cleaned through the pulling and / or rotating and / or vibrating of the cleaning assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of suction technology, in particular to a suction drainage device. BACKGROUND

[0002] Hematuria is a common phenomenon after a patient is inserted with a urinary catheter, and the urinary catheter will be blocked by blood clots of the patient. At present, in clinical practice, when the medical staff encounters such a situation, they will take out the urinary catheter from the patient's body, and squeeze the urinary catheter, but the effect is not obvious, and the purpose of unblocking the urinary catheter is not achieved. Moreover, if there are blood clots in the bladder, the urinary catheter will be frequently blocked, and after being unblocked in a short time, the urinary catheter will be blocked again by the blood clots discharged, and each blockage requires the medical staff to start taking out the urinary catheter, resulting in that the cleaning of the urinary catheter is trapped in the cycle. While the medical staff is working hard, the patient will also feel pain.

[0003] Chinese patent CN103893839B discloses a pressure measuring non-invasive anti-blocking urinary catheter device, which comprises a catheter, a bladder pressure measuring module, an intraurethral orifice blocking module, a non-invasive airbag module, a dilute liquid injection module, a sterilization module, a urine storage module and an anti-blocking urinary catheter module. The device has a clever and reasonable structure, and can still drain out a small amount of blood clots and other foreign matters in the bladder by using the principle of negative pressure suction, effectively ensuring the urinary drainage effect. When the urinary catheter is indwelled, the pressure in the bladder can be intuitively understood by the bladder pressure measuring module, and the effect of urinary drainage and the patency of the drainage channel can be understood in real time. The non-invasive airbag module is wrapped on the catheter, which can realize the function of negative pressure suction and reduce the pain of urinary surgery. The sterilization module can periodically disinfect the indwelled catheter, greatly reducing the incidence of infection caused by the indwelled catheter, ensuring the safety of use, prolonging the effective indwelling time, reducing the frequency of replacing the urinary catheter, greatly saving the medical cost and reducing the pain of the patient. However, the patent has the following disadvantages: the accumulated and adhered large amount of blocking substances in the urinary catheter cannot be removed by the negative pressure effect, the urinary catheter cannot be unblocked, the device has a high cost and is not conducive to use, and the bladder pressure measurement cannot understand the internal situation of the urinary catheter, and the urinary catheter blockage problem cannot be solved.

[0004] In addition, on the one hand, there are differences in the understanding of those skilled in the art, and on the other hand, a large number of literatures and patents have been studied by the inventors when making the present application, but all the details and contents have not been listed in detail due to the limitation of the page, which is not because the present application does not have these characteristics of the prior art, on the contrary, the present application has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art in the background. SUMMARY

[0005] In view of the deficiencies of the prior art, the technical scheme of the present application is to provide a suction drainage device comprising a cleaning assembly for loosening and relaxing the clogging material in the urinary catheter and a suction assembly for the first end of the urinary catheter, wherein the cleaning assembly comprises an inner chamber and a first transmission wire, the cleaning assembly can move between the first end and the second end of the urinary catheter through the stretching action of the first transmission wire, the suction assembly comprises a sensor element for detecting whether the urethra is clogged and a suction pump, the sensor element is composed of a flow sensor and a temperature sensor, the sensor element is arranged inside the first chamber of the urinary catheter, and the liquid and temperature information in the first chamber detected by the flow sensor and the temperature sensor are used to jointly determine whether the urinary catheter is clogged. The first chamber of the urinary catheter is cleaned of clogging material by the cleaning assembly, and the cleaned clogging material is sucked out by the suction assembly. Compared with the prior art which uses negative pressure or separately uses suction to clean the clogging material in the urinary catheter, the present application has higher cleaning efficiency, and a large amount of clogging material adhering to the urinary catheter can also be cleaned by pulling and / or rotating and / or vibrating the cleaning assembly.

[0006] According to a preferred embodiment, the joint determination refers to: when the flow sensor detects that liquid passes through the first chamber, the temperature sensor starts to work, the rapid change of temperature detected by the temperature sensor is used to determine whether the urinary catheter is clogged, if the time of rapid change exceeds a threshold value and the flow sensor cannot detect that liquid passes through the first chamber, the temperature sensor sends a warning signal, and the urinary catheter of the patient is clogged. The threshold value can be set by medical personnel, and in the present application, the threshold value is assumed to be 40S. Since the excreted liquid of the patient is directly discharged from the body, the temperature after discharge is at the body temperature of the patient, i.e. about 37°. This temperature is much higher than the indoor temperature (or different from the current ambient temperature), and the rapid change of temperature detected by the temperature sensor is used to determine whether the urinary catheter is clogged. For example, the temperature rises to close to the body temperature of the patient in a short time (about 2S, which can be freely set), and it can be concluded that the patient is undergoing normal excretion. If the temperature remains at the body temperature of the patient for a long time (about 40S, which can be freely set), and the flow sensor cannot detect that liquid passes through the first chamber, the temperature sensor sends a warning signal at this time, and the urinary catheter of the patient is clogged. The present application jointly determines whether the urinary catheter is clogged by the flow sensor and the temperature sensor, and sets the related threshold value, so as to accurately determine the real-time state of the urinary catheter, without the need for medical personnel to constantly monitor the patient, thereby freeing up the time of medical personnel, and cooperating with the cleaning assembly to automatically clean the urinary catheter without manual operation.

[0007] According to a preferred embodiment, the first end of the urinary tube is located outside the patient's body, and the second end of the urinary tube is located inside the patient's body. The urinary tube comprises a first chamber, a second chamber and a third chamber, the first chamber is used for guiding the patient's excretion liquid and flowing out from the first end, and is used for separating the second chamber and the third chamber, the inlet of the first chamber is located at the non-tail end of the urinary tube near the end of the patient's bladder, the second chamber is separated from the first chamber and the third chamber, and is used for injecting flushing liquid to flush the blood clots in the patient's bladder or injecting medicine, the third chamber is separated from the first chamber externally, and the third chamber inlet is located at the tail end of the first chamber internally near the end of the patient's bladder, and the first transmission line pulls the cleaning assembly to move towards the first end or the second end of the urinary tube through the third chamber. It should be noted that the inlet of the first chamber is located at this position, which does not mean that the inlet of the first chamber is only a small inlet, and multiple inlets can be arranged around the circumference of the urinary tube to make the patient's excretion liquid enter the first chamber. The present application realizes the functions of flushing, medicine injection, drainage, cleaning and excretion liquid discharge through the separated chambers, separates the chambers for patient catheterization and medicine injection, avoids the contamination of the patient's bladder by the excretion liquid, and enables medical staff to treat the patient without pulling out the urinary tube, reduces the pain of the patient, and avoids secondary injury to the patient.

[0008] According to a preferred embodiment, the cleaning assembly can slowly rotate under the driving of the first transmission line to remove the blocked substances in the urinary tube. The cleaning assembly is a cylindrical shaft. The cleaning assembly can be made of a material with high elasticity, so as to have flexibility and anti-torsion. The present application removes the blocked substances in the first chamber by clockwise rotation or counterclockwise rotation of the cleaning assembly. Compared with the prior art which only uses suction or replaces the urinary tube to solve the blocking problem, the present application is more convenient, efficient and effective in cleaning, does not need to replace the urinary tube frequently, and can be used multiple times after disinfection, so it has high practical value.

[0009] According to a preferred embodiment, the device further comprises an actuator which generates vibration to cause the first transmission line to vibrate so that the clogging material in the urinary catheter is cleaned by the cleaning assembly which vibrates due to the vibration of the first transmission line. The vibration amplitude of the actuator can be adjusted according to the degree of clogging of the urinary catheter, and the movement of the cleaning assembly towards the first end or the second end, the clockwise or counterclockwise rotation is synchronized to increase the cleaning effect of the clogging material in the urinary catheter. Preferably, the device can also use an ultrasonic device. The ultrasonic wave is transmitted to the cleaning assembly through the first transmission line, so as to act on the clogging material. It should be noted that, in order to prevent the high frequency of the ultrasonic wave from damaging the internal structure of the urinary catheter, the normal work of the first chamber, the second chamber and the third chamber will not be affected. Therefore, the ultrasonic wave used in the present application is between 20 kHz and 40 kHz, which has a certain cleaning effect while limiting the use of ultrasonic energy. The ultrasonic device is used to provide ultrasonic waves and act on the clogging material, and the movement of the cleaning assembly towards the first end or the second end, the clockwise or counterclockwise rotation can be synchronized to increase the cleaning effect of the clogging material in the urinary catheter. The present application can remove the blood clots that are difficult to suck out by the suction assembly by vibrating the cleaning assembly connected with the first transmission line to clean the clogging material in the urinary catheter. And also provided with an ultrasonic device, the ultrasonic energy is transmitted through the first transmission line to limit the use of ultrasonic energy for clogging material cleaning.

[0010] According to a preferred embodiment, the suction assembly is connected to the first end of the urinary catheter, and the suction assembly uses a combination of rechargeable batteries and / or replaceable batteries and main power supply. The power supply of the suction assembly provides power support for the suction pump, one end of the suction pump is connected to the first end of the urethra through the pipeline, and the other end is connected to the collection chamber to collect the clogging material sucked out. The collection chamber is detachably connected with the suction pump to enable the collection chamber to be cleaned. The combination of the power supply of the suction assembly facilitates the use of the suction assembly without connecting the power supply, and facilitates carrying. When the suction assembly is connected to the power supply, the rechargeable battery can be charged. The power supply of the suction assembly provides power support for the suction pump, which can be a suction device based on a vibrating diaphragm or volume displacement or spring or siphon or pipeline pump.

[0011] According to a preferred embodiment, the flow sensor and the temperature sensor are each provided with a protective film to isolate direct contact with the patient's excreted liquid. The protective film is made of heat-conducting material so that its material will not affect the temperature detected by the temperature sensor. The protective film protects each sensor from being contaminated by the patient's excreted liquid, thereby prolonging the service life of the sensor and saving costs.

[0012] According to a preferred embodiment, when the suction assembly malfunctions or is absent, a cleaning sleeve within the inner chamber of the cleaning assembly can remove obstructing material. The cleaning sleeve is an elastic sleeve with an umbrella-like structure. The cleaning sleeve is connected to a second drive line to allow it to enter and exit the inner chamber, with the umbrella-shaped tip of the cleaning sleeve facing the inner chamber. While keeping the cleaning assembly in its current position, pulling the second drive line pulls the cleaning sleeve out, and the cleaning sleeve unfolds elastically. Alternatively, pulling the second drive line can also cause the cleaning sleeve to retract and enter the inner chamber. The elasticity of the cleaning sleeve allows it to cover the space of the first chamber, thereby completely removing obstructing material from the first chamber. The first chamber diameter of the urinary catheter used in this invention can be set to 8mm, and the cleaning sleeve can also be set to have an unfolded diameter of 8mm when fully extended. Furthermore, due to its elasticity, the cleaning sleeve is not limited to urinary catheters smaller than 8mm, allowing it to dynamically adapt to changes in the catheter diameter and effectively remove blockages. The length of the cleaning sleeve is the same as the length that the inner chamber can accommodate, and the length it extends from the inner chamber can be selected based on the required cleaning diameter of the current urinary catheter, ensuring that the cleaning sleeve does not contact the urinary catheter and preventing damage due to excessive outward support force.

[0013] According to a preferred embodiment, as the cleaning sleeve moves from the first end to the second end of the urinary catheter, it rotates the second drive line at a low speed or vibrates to improve the cleaning effect. The low-speed rotation is performed manually by a medical professional or by a rotating device, and the vibration is provided by the actuator. The umbrella-shaped edge of the cleaning sleeve is serrated to provide a grinding effect when rotating in one direction and a crushing effect when rotating in another direction. Because the umbrella-shaped edge of the cleaning sleeve is serrated, its rotation in different directions can achieve different functions of clearing blockages.

[0014] According to a preferred embodiment, the outer surface of the cleaning sleeve is coated with an absorbent material to form an absorbent surface. This absorbent surface, rather than the cleaning sleeve itself, is used when the cleaning sleeve cleans the blockage material towards the first end. Furthermore, the cleaning effect can be enhanced by rotating and / or vibrating the surface as it approaches the blockage material. The absorbent surface forms a filter-like structure that absorbs or traps the cleaned blockage material and discharges it from the first chamber, preventing it from flowing back into the patient's bladder and thus avoiding infectious injury or contamination of the surgical wound.

[0015] Beneficial technical effects of the present invention:

[0016] (1) The present invention removes the blockage material in the first chamber of the urinary catheter by cleaning component and sucks out the removed blockage material by suction component. Compared with the prior art of using negative pressure or suction alone to remove the blockage material in the urinary catheter, the present invention has higher cleaning efficiency and can also remove a large amount of blockage material adhering to the urinary catheter by pulling and / or rotating and / or vibrating the cleaning component.

[0017] (2) This invention uses a sensor element located inside the first chamber to determine whether the urethra is blocked. A flow sensor detects whether liquid is passing through the first chamber, and a temperature sensor detects rapid temperature changes to determine whether the urinary catheter is blocked. If the rapid temperature change occurs for more than a threshold time and the flow sensor does not detect any liquid passing through the first chamber, the temperature sensor issues a warning signal, indicating that the patient's urinary catheter is blocked. Furthermore, this invention provides a protective film for the flow sensor and temperature sensor to prevent direct contact with the patient's excreted fluid. The protective film is made of a thermally conductive material so that its material does not affect the temperature detected by the temperature sensor.

[0018] (3) The cleaning sleeve of the present invention can be configured such that its unfolded diameter is the diameter of the urinary catheter when fully unfolded. Furthermore, due to its elasticity, the cleaning sleeve is not limited to excessively small urinary catheters, thus allowing the cleaning sleeve to dynamically adapt to changes in the diameter of the urinary catheter and to remove blockages in a manner that maximizes the removal of blockages. The length of the cleaning sleeve is the same as the length that the inner chamber can accommodate, and the length removed from the inner chamber can be selected according to the required cleaning diameter of the current urinary catheter, so that the cleaning sleeve does not contact the urinary catheter, preventing the urinary catheter from being damaged due to excessive outward supporting force.

[0019] (4) The umbrella-shaped edge of the cleaning sleeve is serrated to provide a grinding effect when rotating in one direction and a crushing effect when rotating in the other direction. The cleaning effect of the cleaning sleeve, along with the crushing or grinding effect achieved by the tension and rotation of the first drive line, can be further enhanced by the vibration of the cleaning sleeve, which can rotate while vibrating. When there is a blockage that is difficult to remove in the first chamber, the blockage can be removed by simultaneously starting vibration and rotation and by pulling the first drive line. In addition to generating a small vibration through the actuator, this invention also allows medical personnel to manually adjust the position of the cleaning assembly and the cleaning sleeve through the first and second drive lines to offset the axial position of the first chamber so that the cleaning assembly and the cleaning sleeve are closer to the blockage, thereby achieving a better cleaning effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a preferred embodiment of the suction flow device of the present invention;

[0021] Figure 2This is a schematic diagram of the cleaning assembly when the cleaning sleeve of the present invention is in the retracted state;

[0022] Figure 3 This is a schematic diagram of the cleaning assembly when the cleaning sleeve of the present invention is in the unfolded state;

[0023] Figure 4 This is the invention Figure 1 Enlarged view of point A in the middle.

[0024] List of reference numerals

[0025] 1: Urinary catheter; 2: First end; 3: Second end; 4: First chamber; 5: Second chamber; 6: Third chamber; 7: Cleaning assembly; 8: First drive line; 9: Cleaning sleeve; 10: Blocking material. Detailed Implementation

[0026] The following is a detailed explanation with reference to the accompanying drawings.

[0027] Example 1

[0028] This application relates to a suction device, comprising a cleaning assembly 7 for vibrating and loosening obstructions 10 in a urinary catheter 1, and a suction assembly for a first end 2 of the urinary catheter 1. The cleaning assembly 7 includes an inner chamber and a first drive line 8. The cleaning assembly 7 is movable between the first end 2 and the second end 3 of the urinary catheter 1 by the stretching action of the first drive line 8. Specifically, the first drive line 8 is connected to the cleaning assembly 7 and extends from the first end 2 of the urinary catheter 1 to the hand of a medical professional or a pulling device, and the cleaning assembly 7 is moved towards the first end 2 by pulling the first drive line 8 at the first end 2.

[0029] The urinary catheter 1 of this invention has a multi-chamber design. The first chamber 4 is used to guide the patient's excretory fluid and allow it to flow out from the first end 2, and also serves to separate the second chamber 5 and the third chamber 6. The second chamber 5, separated from the first chamber 4 and the third chamber 6, is used to inject flushing fluid to rinse blood clots in the patient's bladder or to inject medication, etc. The entrance to the first chamber 4 is located circumferentially at the non-tail end of the urinary catheter 1 near the patient's bladder. Figure 1 The specific location of the entrance to the first chamber 4 is shown. It should be noted that the location of the entrance to the first chamber 4 does not mean that the entrance to the first chamber 4 is only a small inlet. Multiple entrances to the first chamber 4 can be arranged around the circumference of the urinary catheter 1 to ensure that all excreted fluids from the patient enter the first chamber 4. The third chamber 6 is externally separated from the first chamber 4, and the entrance to the third chamber 6 is located at the tail end of the first chamber 4, near the patient's bladder. The first drive line 8 pulls the cleaning assembly 7 through the third chamber 6 to either the first end 2 or the second end 3 of the urinary catheter 1.

[0030] According to a preferred embodiment, the cleaning component 7 is a cylindrical rotating shaft. The cleaning component 7 may be made of a highly elastic material, thus possessing flexibility and torsional resistance. The cleaning component 7 can slowly rotate under the drive of the first transmission line 8 to remove the obstruction material 10 within the urinary catheter 1. Preferably, the cleaning component 7 can rotate clockwise or counterclockwise.

[0031] According to a preferred embodiment, the device further includes an actuator. The actuator causes the first transmission line 8 to vibrate, thereby cleaning the blockage material 10 located in the urinary catheter 1 by the cleaning assembly 7, which vibrates due to the vibration of the first transmission line 8. The actuator generates vibration and transmits it to the cleaning assembly 7 to clean the blockage material 10. The vibration amplitude of the actuator can be adjusted according to the degree of blockage in the urinary catheter 1, and the movement of the cleaning assembly 7 toward the first end 2 or the second end 3, and its clockwise or counterclockwise rotation can be performed simultaneously to increase the cleaning effect on the blockage material 10 in the urinary catheter 1.

[0032] According to a preferred embodiment, the device further includes an ultrasonic device. Ultrasonic waves are transmitted to the cleaning assembly 7 via a first transmission line 8, thereby acting on the blockage material 10. It should be noted that, to prevent excessively high ultrasonic frequencies from damaging the internal structure of the ureter 1 and affecting the normal operation of the first chamber 4, the second chamber 5, and the third chamber 6, the present invention uses ultrasonic waves between 20kHz and 40kHz, which, while having a certain cleaning effect, maximizes the utilization of ultrasonic energy. The ultrasonic device provides ultrasonic waves and acts on the blockage material 10, while the movement of the cleaning assembly 7 toward the first end 2 or the second end 3, and its clockwise or counterclockwise rotation, can be synchronized to increase the cleaning effect on the blockage material 10 within the ureter 1.

[0033] According to a preferred embodiment, the aspiration assembly is connected to the first end 2 of the urinary catheter 1. The aspiration assembly may employ a combination of a rechargeable battery and / or a replaceable battery and a main power supply, a combination that allows the aspiration assembly to be used even without a power connection, making it convenient to carry. When the aspiration assembly is connected to a power source, the rechargeable battery can be charged. The power source of the aspiration assembly provides power to the aspiration pump, which may be a suction device based on a vibrating diaphragm, volume displacement, spring, siphon, or tubing pump. One end of the aspiration pump is connected to the first end 2 of the urethra via a tubing, while the other end is connected to a collection chamber to collect the aspirated obstruction material 10. The collection chamber is detachably connected to the aspiration pump to allow for cleaning of the collection chamber. The aspiration assembly also includes a sensor element for detecting whether the urinary catheter 1 is obstructed. The sensor element consists of a flow sensor and a temperature sensor. The sensor element is disposed inside the first chamber 4. Whether the urethra is obstructed is determined jointly by the flow sensor and the temperature sensor. When the flow sensor detects liquid flowing through the first chamber 4, the temperature sensor activates. Since the patient's excretory fluid is expelled directly from the body, its temperature after excretion will be at the patient's body temperature, approximately 37°C. This temperature is much higher than the room temperature (or different from the current ambient temperature). A temperature sensor detects rapid temperature changes to determine if the urinary catheter 1 is blocked. For example, if the temperature rises to near the patient's body temperature within a short time (approximately 2 seconds, freely adjustable), it indicates that the patient is excreting normally. If the temperature remains at the patient's body temperature for a longer period (approximately 40 seconds), and the flow sensor does not detect any fluid passing through the first chamber 4, the temperature sensor issues a warning signal, indicating that the patient's urinary catheter 1 is blocked. Preferably, the flow sensor can also be a capacitive sensor or an ultrasonic sensor to detect the presence of fluid in the first chamber 4. Both the flow sensor and the temperature sensor are equipped with a protective film to prevent direct contact with the patient's excretory fluid. The protective film is made of a thermally conductive material so that its material does not affect the temperature detected by the temperature sensor.

[0034] Example 2

[0035] According to a preferred embodiment, when the suction assembly malfunctions or is unavailable, the blockage 10 can be removed by the cleaning sleeve 9 within the inner chamber of the cleaning assembly 7. The cleaning sleeve 9 is an elastic sleeve with an umbrella-like structure. The cleaning sleeve 9 is connected to a second drive line to allow it to enter and exit the inner chamber. The umbrella-shaped tip of the cleaning sleeve 9 is located deep within the inner chamber (the other end of the opening). By keeping the cleaning assembly 7 in its current position, pulling the second drive line pulls the cleaning sleeve 9 out, and it unfolds elastically. Figure 3The image shows the unfolded state of the cleaning sleeve 9. Furthermore, pulling the second drive line can also cause the cleaning sleeve 9 to retract and enter the inner chamber. The elasticity of the cleaning sleeve 9 allows it to cover the space of the first chamber 4, thereby completely removing the blockage material 10 within the first chamber 4. The diameter of the first chamber 4 of the catheter 1 used in this invention can be set to 8 mm, and the diameter of the cleaning sleeve 9 can also be set to 8 mm when fully unfolded. Due to its elasticity, the cleaning sleeve 9 is not limited to catheters 1 with diameters smaller than 8 mm, allowing the cleaning sleeve 9 to dynamically adapt to changes in the diameter of the catheter 1, enabling maximum removal of the blockage material 10. The length of the cleaning sleeve 9 is the same as the length that the inner chamber can accommodate, and the length removed from the inner chamber can be selected according to the required cleaning diameter of the current catheter 1, ensuring that the cleaning sleeve 9 does not contact the catheter 1 and preventing the catheter 1 from breaking due to excessive outward support force.

[0036] According to a preferred embodiment, because the cleaning sleeve 9 has an umbrella-shaped structure, it can only be used to remove the blockage 10 when the cleaning assembly 7 is located at the second end 3. When the cleaning assembly 7 reaches this position, the cleaning sleeve 9 is pulled out of the inner chamber via the second drive line and pulled towards the first end 2 to remove the blockage 10 from the first chamber 4. The cleaning effect depends on the adhesion of the blockage 10 and the tension of the second drive line. To improve the cleaning effect, the second drive line can be rotated at a low speed or vibrated while the cleaning sleeve 9 is being pulled, thereby improving the cleaning effect. The aforementioned low-speed rotation can be performed manually by medical personnel or by a rotating device, and the vibration can be provided by an actuator. Figure 3 A schematic diagram of the cleaning sleeve 9 of the present invention in its deployed state under the action of the cleaning assembly 7 is shown. The larger diameter of its umbrella-shaped edge is close to the diameter of the first chamber 4, and the blockage material 10 moves towards the first end 2 of the urinary catheter 1 under the action of the cleaning sleeve 9. The cleaning sleeve 9 of the present invention is similar to a filter device, but differs in that the present invention allows the cleaning sleeve 9 to be deployed or retracted through the cooperation of the second transmission line and the inner chamber. In the retracted state, the cleaning sleeve 9 can be tightly located within the inner chamber to prevent corrosion by the patient's excrement or pushing of the blockage material 10 towards the second end 3 of the first chamber 4 when the cleaning sleeve 9 is not in use. When the diameter of the first chamber 4 is smaller than the maximum diameter of the cleaning sleeve 9, the deployment of the cleaning sleeve 9 is controlled by controlling the length of the cleaning sleeve 9 extending from the inner chamber, or the cleaning sleeve 9 can be completely pulled out, clearing the blockage material 10 through contact with the wall of the first chamber 4. As the cleaning sleeve 9 moves from the second end 3 to the first end 2, the diameter of the cleaning sleeve 9 adaptively changes according to the diameter of the contact with the first chamber 4 (due to possible diameter changes caused by bending). It should be noted that the movement of the cleaning sleeve 9 can be achieved by pulling the second drive line, or by pulling the cleaning assembly 7 through the first drive line 8, thereby driving the cleaning sleeve 9 to move.

[0037] According to a preferred embodiment, the second drive line is arranged in the third chamber 6 in a manner consistent with the first drive line 8. The inner diameter of the inner chamber is larger than the diameter of the retracted cleaning sleeve 9 so that the cleaning sleeve 9 can retract into the inner chamber. Figure 2 In the process, the cleaning sleeve 9 is in a retracted state. The cleaning sleeve 9 is made of a highly elastic material, thus possessing flexibility and torsional resistance. The movement of the cleaning assembly 7 and the cleaning sleeve 9 is on the same axis (the first drive line 8 and the second drive line are on the same axis), meaning the second drive line passes through the inner chamber and extends to the second end 3. By pulling the first drive line 8, for example, by a medical professional or a pulling device, the cleaning assembly 7 is moved towards the first end 2, while simultaneously the second drive line is pulled, causing the cleaning sleeve 9 to move towards the second end 3. Under sufficient pulling force from the medical professional or the pulling device, the cleaning assembly 7 can move towards the first end 2, while the cleaning sleeve 9 moves towards the second end 3, causing the cleaning sleeve 9 to fully retract from the unfolding device into a retracted state within the inner chamber. To achieve this retraction, the cleaning assembly 7, when pulled towards the first end 2, must exert sufficient pulling force to overcome the elastic force of the cleaning sleeve 9, allowing the cleaning sleeve 9 to retract and enter the inner chamber.

[0038] According to a preferred embodiment, an adsorbent material can be coated on the outer surface of the cleaning sleeve 9 to form an adsorbent surface, so that when the cleaning sleeve 9 cleans the blockage 10 towards the first end 2, the blockage 10 is in contact with the adsorbent surface, and when approaching the blockage 10, the cleaning effect can be increased by using rotation and / or vibration during the process of pushing the blockage 10 towards the first end 2.

[0039] According to a preferred embodiment, the cleaning assembly 7 can slowly rotate under the drive of the first drive line 8 to remove the blockage material 10 in the urinary catheter 1. Preferably, the cleaning assembly 7 can rotate clockwise or counterclockwise. Simultaneously, the cleaning sleeve 9 can rotate while pushing the blockage material 10 to abrade more adherent blockage material 10. The umbrella-shaped edge of the cleaning sleeve 9 can be serrated to provide an abrasive effect when rotating in one direction and a crushing effect when rotating in the other direction. Rotation occurs not only when pushing the blockage material 10 towards the first end 2, but also when the invention includes an actuator. The actuator causes the first drive line 8 and / or the second drive line to vibrate, thereby cleaning the blockage material 10 located in the urinary catheter 1 by the vibrating cleaning assembly 7 and / or the cleaning sleeve 9. The actuator generates vibration and transmits it to the cleaning assembly 7 and / or the cleaning sleeve 9 to clean the blockage material 10. The vibration amplitude of the actuator can be adjusted according to the degree of blockage in the urinary catheter 1. Simultaneously, the movement of the cleaning assembly 7 toward the first end 2 or the second end 3, and its clockwise or counterclockwise rotation, can be synchronized to enhance the cleaning effect on the blockage material 10 within the urinary catheter 1. Similarly, when the cleaning sleeve 9 moves toward the first end 2, its clockwise or counterclockwise rotation is synchronized to further enhance the cleaning effect on the blockage material 10 within the urinary catheter 1. The cleaning sleeve 9 generates lateral and / or axial vibrations, thereby enabling it to break up the blockage material 10.

[0040] According to a preferred embodiment, the device further includes an ultrasonic device. Ultrasonic waves are transmitted to the cleaning assembly 7 and / or the cleaning sleeve 9 via a first transmission line 8 and / or a second transmission line, thereby acting on the blockage material 10. It should be noted that, to prevent excessively high ultrasonic frequencies from damaging the internal structure of the urinary catheter 1 and to ensure the normal operation of the first chamber 4, the second chamber 5, and the third chamber 6, the present invention uses ultrasonic waves between 20kHz and 40kHz, which achieve a certain cleaning effect while maximizing the utilization of ultrasonic energy. The ultrasonic device provides ultrasonic waves to act on the blockage material 10, and simultaneously, as the cleaning sleeve 9 moves toward the first end 2, clockwise or counterclockwise rotation can be performed to enhance the cleaning effect on the blockage material 10 within the urinary catheter 1.

[0041] According to a preferred embodiment, in this embodiment, the umbrella-shaped elastic structure (i.e., the cleaning sleeve 9) has a fan-shaped region along its axial direction, which has a non-equal elastic modulus with the adjacent region, to distinguish a first region with a first elastic modulus and a second region with a second elastic modulus, wherein the first elastic modulus is greater than the second elastic modulus. The first region is fixed to the wall-attached dirt (i.e., the blockage substance 10) in a manner that contacts and is relatively positioned to the wall-attached dirt. When the second region is relatively limited by the first region and is simultaneously subjected to the rotational force transmitted by the transmission line, it can grind away the first side of the wall-attached dirt and break the second side in a manner that gradually shrinks at one end and gradually increases at the other end with the direction of rotation. Then, as one end of the second region gradually shrinks to near its limit, the user experiences a resistance sensation when rotating. The user can then rotate in the opposite direction, so that the second region breaks the first side of the wall-attached dirt and grinds away the second side in the opposite manner. Thus, the attachment points of the two sides of the wall-attached dirt and the ureteral wall are alternately crushed and ground away, thereby quickly detaching from the wall. Furthermore, the energy stored in the second region of the second elastic modulus when it is stretched by rotation can be used in the next reverse rotation to provide kinetic energy for crushing or grinding away the debris, resulting in a greater instantaneous impact on the attached dirt and causing it to detach from the wall. Preferably, the unequal elastic modulus of the umbrella-shaped elastic structure (i.e., the cleaning sleeve 9) is determined by the material of its adsorption surface, i.e., an elastic skin is used. The concave end of the second region of the umbrella-shaped elastic structure stores compressive elastic force, while the enlarged end stores tensile elastic force, which is applied to the next rotation to increase the force on the attached dirt. The elastic modulus of the second region accumulates the force on the stubborn attached dirt, and through alternating rotation, this force is used in the next rotation to enhance the kinetic energy of the umbrella-shaped elastic structure. The first region, due to its relatively large elastic modulus, forms a support point with the attached dirt, while the second region, due to its relatively small elastic modulus, accumulates elastic force as it rotates with the drive line, thereby improving the cleaning effect of the umbrella-shaped elastic structure (i.e., the cleaning sleeve 9).

[0042] To facilitate understanding, the working principle and usage method of the suction flow device of the present invention will be discussed.

[0043] Pre-insertion of the urinary catheter 1 into the patient is a standard procedure in the art and will not be described in detail here. The second end 3 of the urinary catheter 1 is placed inside the patient. After use, a large amount of obstructive material 10, such as blood clots, may accumulate in the first chamber 4. Medical personnel or a pulling device pull the first drive line 8, causing the cleaning assembly 7 to move from the first end 2 of the urinary catheter 1 to the second end 3. Rotation and / or vibration loosen the large amount of obstructive material 10 accumulated in the first chamber 4, making it easier for the suction assembly to aspirate it out of the first chamber 4. During the movement of the cleaning assembly 7 from the first end 2 to the second end 3 of the urinary catheter 1, the cleaning sleeve 9 remains in a contracted state within the inner chamber of the cleaning assembly 7 to prevent the obstructive material 10 from moving towards the second end 3.

[0044] The suction assembly draws out the blockage material 10 loosened by the cleaning assembly 7 from the first end 2. It should be noted that during suction, the cleaning assembly 7 remains at the second end 3 of the urinary catheter 1, and its position is fixed by the first transmission line 8. The first transmission line 8, extending from the first end 2, does not enter the suction assembly; it passes through the connection gap between the suction assembly and the urinary catheter 1. Due to the small size of the first transmission line 8, this gap does not affect the normal suction function of the suction assembly.

[0045] If the cleaning assembly 7 cannot penetrate the large amount of blockage material 10 accumulated in the first chamber 4 during its movement from the first end 2 to the second end 3 of the urinary catheter 1, the blockage material 10 can be broken up by accelerating rotation and / or increasing the vibration amplitude. Alternatively, the cleaning sleeve 9 can be slightly expanded, brought close to the blockage material 10, and rotated and / or vibrated, so that the suction surface of the cleaning sleeve 9 can break up the blockage material 10 accumulated by the cleaning assembly 7 during its movement from the first end 2 to the second end 3 of the urinary catheter 1.

[0046] If the cleaning component 7 can move from the first end 2 to the second end 3 of the urinary catheter 1, after the cleaning component 7 moves to the second end 3, the suction component is preferentially selected to suction the blockage material 10 in the first chamber 4 through the first end 2. Then, based on whether there is still a blockage in the first chamber 4 detected by the sensor element, it is selected whether to unfold the cleaning sleeve 9. If the cleaning sleeve 9 is required to further remove the blockage material 10, the second transmission line is pulled to unfold the cleaning sleeve 9 and make it contact the first chamber 4. Then, the first transmission line 8 is pulled by medical personnel or a pulling device to push the cleaning sleeve 9 from the second end 3 to the first end 2 of the urinary catheter 1. The adsorption surface of the cleaning sleeve 9 contacts the blockage material 10, thereby moving the blockage material 10 with the cleaning sleeve 9 to the first end 2 and collecting and removing it. The cleaning effect of the cleaning sleeve 9 can be improved by the rotation and / or vibration of the second transmission line. Since the umbrella-shaped edge of the cleaning sleeve 9 is serrated, its rotation in different directions can achieve different functions of removing the blockage material 10. For example, if clockwise rotation is the direction of the sawtooth, then clockwise rotation provides a crushing effect, and counterclockwise rotation provides a grinding effect. The cleaning effect of the cleaning sleeve 9, achieved by the tension and rotation of the first drive line 8, can be further enhanced by the vibration of the cleaning sleeve 9. The cleaning sleeve 9 can rotate while vibrating. When there is a difficult-to-remove blockage 10 in the first chamber 4, the blockage 10 can be cleared by simultaneously starting vibration and rotation, and by pulling through the first drive line 8. This vibration can be generated by an actuator and transmitted to the cleaning sleeve 9 through the second drive line to clear the blockage 10. This vibration is axial and / or lateral. Preferably, in addition to generating a small vibration, the position of the cleaning assembly 7 and the cleaning sleeve 9 can be manually adjusted by medical personnel through the first drive line 8 and the second drive line to offset the axial position of the first chamber 4 so that the cleaning assembly 7 and the cleaning sleeve 9 are closer to the blockage 10, thereby achieving a better cleaning effect.

[0047] After the blockage 10 is cleared, medical personnel can manually or by pulling the first drive line 8 to move the cleaning assembly 7 towards the first end 2. Simultaneously, pulling the second drive line moves the cleaning sleeve 9 towards the second end 3, causing the inner chamber of the cleaning assembly 7 to come close to the umbrella-shaped tip of the cleaning sleeve 9, and gradually compressing the cleaning sleeve 9, thus completely retracting the cleaning sleeve 9 from its unfolded state to a contracted state located within the inner chamber. Once fully retracted, the cleaning assembly 7 can be suspended outside the urinary catheter 1, retracted into the second end 3 of the urinary catheter 1, or removed from the first drive line 8 and the second drive line for secure storage.

[0048] Throughout the text, the features indicated by “preferred” are only optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

[0049] It should be noted that the specific embodiments described above are exemplary, and those skilled in the art can devise various solutions inspired by the disclosure of this invention. These solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this invention is defined by the claims and their equivalents.

Claims

1. A suction flow device, characterized in that, It includes a cleaning assembly (7) for vibrating and loosening blockage material (10) in a multi-chamber catheter (1) and a suction assembly for the first end (2) of the catheter, wherein the first chamber (4) of the catheter (1) is used to guide the patient’s excretory fluid and to flow out from the first end (2) and to separate the second chamber (5) and the third chamber (6). The cleaning assembly (7) includes an inner chamber and a first drive line (8). The first drive line (8) pulls the cleaning assembly (7) through the third chamber (6) to move it toward the first end (2) or the second end (3) of the urinary catheter (1). The suction assembly includes a sensor element for detecting whether the urinary catheter is blocked and a suction pump. The sensor element consists of a flow sensor and a temperature sensor, and is disposed inside the first chamber (4) of the urinary catheter. Based on the liquid and temperature information detected by the flow sensor and the temperature sensor in the first chamber (4), the assembly determines whether the urinary catheter (1) is blocked. When the suction assembly malfunctions, the cleaning sleeve (9) in the inner chamber of the cleaning assembly (7) can remove the blockage material (10). The cleaning sleeve (9) is connected to a second drive line so that the cleaning sleeve (9) can enter and exit the inner chamber. While keeping the cleaning assembly (7) in its current position, the second drive line is pulled to pull out the cleaning sleeve (9). The edge of the cleaning sleeve (9) is serrated so that it provides a grinding effect when rotating in one direction and a crushing effect when rotating in another direction.

2. The suction flow device as described in claim 1, characterized in that, The common judgment refers to the following: when the flow sensor detects that liquid is passing through the first chamber (4), the temperature sensor starts to work, and the rapid temperature change is detected by the temperature sensor to determine whether the urinary catheter (1) is blocked. If the time of rapid change exceeds the threshold and the flow sensor does not detect any liquid passing through the first chamber (4), the temperature sensor issues a warning signal, indicating that the patient's urinary catheter (1) is blocked.

3. The suction flow device as described in claim 2, characterized in that, The first end (2) of the urinary catheter is located outside the patient's body, and the second end (3) of the urinary catheter is located inside the patient's body, wherein, The urinary catheter (1) includes a first chamber (4), a second chamber (5) and a third chamber (6). The entrance to the first chamber (4) is located circumferentially at the non-tail end of the urinary catheter (1) near the patient's bladder. The second chamber (5) is separated from the first chamber (4) and the third chamber (6) and is used to inject flushing fluid to flush blood clots in the patient's bladder or to inject drugs. The third chamber (6) is externally separated from the first chamber (4), and the entrance to the third chamber (6) is located at the tail end of the first chamber (4) near the patient's bladder.

4. The suction flow device as described in claim 3, characterized in that, The cleaning component (7) can rotate slowly under the drive of the first transmission line (8) to remove the blockage material (10) in the urinary catheter.

5. The suction flow device as described in claim 4, characterized in that, The device further includes an actuator that generates vibration to cause the first drive line (8) to vibrate, thereby causing the blockage material (10) located in the urinary catheter to be cleaned by the cleaning assembly (7) which vibrates due to the vibration of the first drive line (8), wherein, The vibration amplitude of the actuator can be adjusted according to the degree of blockage of the urinary catheter (1), while the cleaning component (7) moves toward the first end (2) or the second end (3), and its clockwise or counterclockwise rotation is performed synchronously.

6. The suction flow device as described in claim 5, characterized in that, The suction assembly is connected to the first end (2) of the urinary catheter. The suction assembly uses a combination of a rechargeable battery and / or a replaceable battery and a main power supply. The power supply of the suction assembly provides power to the suction pump. One end of the suction pump is connected to the first end (2) of the urinary catheter via a pipe, while the other end is connected to a collection chamber to collect the suctioned blockage material (10). The collection chamber is detachably connected to the suction pump so that the collection chamber can be cleaned.

7. The suction flow device as described in claim 6, characterized in that, Both the flow sensor and the temperature sensor are equipped with protective films to prevent direct contact with the patient's excreted fluids.

8. The suction flow device as described in claim 7, characterized in that, The cleaning sleeve (9) is an elastic kit with an umbrella-shaped structure, the umbrella-shaped tip of the cleaning sleeve (9) facing the inner cavity, and the cleaning sleeve (9) unfolds based on elastic action.

9. The suction flow device as described in claim 8, characterized in that, As the cleaning sleeve (9) moves from the first end (2) to the second end (3) of the urinary catheter, it rotates the second transmission line at a low speed or vibrates to improve the cleaning effect. The low-speed rotation is performed manually by medical personnel or by a rotating device, and the vibration is provided by the actuator. The umbrella-shaped edge of the cleaning sleeve (9) is serrated.

10. The suction flow device as described in claim 9, characterized in that, The outer surface of the cleaning sleeve (9) is coated with an adsorbent material to form an adsorbent surface. The adsorbent surface is used so that when the cleaning sleeve (9) moves toward the first end (2) to clean the blockage material (10), the adsorbent surface is in contact with the blockage material (10) instead of the cleaning sleeve (9).

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