CN103893839B - The anti-blocking o urethral catheterization device of pressure measurement noinvasive - Google Patents

Abstract

The invention discloses a pressure-measuring non-invasive anti-blockage catheterization device, which comprises a catheter, a bladder pressure-measuring module, a urethral opening blocking module, a non-invasive air bag module, a diluted liquid injection module, a sterilization module, and a urine storage module. module and anti-blocking catheterization module; the structure design of the invention is ingenious and reasonable, using the principle of negative pressure suction, when a small amount of foreign matter such as blood clots is produced in the bladder, it can still be drained out, effectively ensuring the effect of catheterization and drainage, and the indwelling catheter When using the urinary catheter, the bladder pressure measurement module can be used to intuitively understand the pressure in the bladder, and the effect of catheterization and drainage and the smoothness of the drainage channel can be understood in real time; the non-invasive balloon module is coated on the catheter, which can realize the negative pressure suction It can also reduce the pain of catheterization; the sterilization module can regularly disinfect the indwelling catheter, greatly reducing the incidence of infection caused by the indwelling catheter, ensuring the safety of use, prolonging the effective indwelling time, and reducing the frequency of catheter replacement. Greatly save medical costs and reduce the suffering of patients.

Description

Pressure measuring non-invasive anti-blocking urinary catheterization device

technical field

The invention relates to the technical field of medical devices, in particular to a pressure measuring non-invasive anti-blocking urinary catheterization device.

Background technique

Hematuria is a common symptom of urological patients, such as urinary stones, tumors, trauma, etc. When the amount of bleeding is large, the concentration of hematuria is high, and the urine tends to be retained in the bladder to form blood clots that block the urinary tract, leading to acute renal failure and life-threatening , often requiring emergency surgery to remove the clot. Therefore, once a large amount of hematuria occurs clinically, emergency treatment is often required.

Although there are some medical device products for anti-clogging urinary catheters, it is not easy to implement and the effect is not exact; for example, three-lumen urinary catheters are currently used in clinical practice for flushing and drainage, and normal saline is injected into the bladder from the water inlet pipe and then diluted Urine is drained through the outflow tube, which can avoid the formation of blood clots in the bladder to a certain extent, but there are still many problems in clinical use: (1) The drainage power of the three-lumen catheter mainly comes from the pressure in the bladder, and the pressure is relatively high. The drainage tube is small, and the lumen of the drainage tube is limited. When there is a blood clot in the bladder, it is easy to block the lumen. The medical staff needs to repeatedly use the syringe to flush, sometimes it takes only a few minutes for the medical staff to flush once, which greatly increases the workload of the medical staff and wastes Medical resources; (2) Negative pressure suction can increase the drainage pressure and enhance the drainage effect, but the current clinical use of drainage tubes is soft, and the tube wall is often collapsed when connected to negative pressure, which cannot be realized; (3) The current clinical use of urinary catheter products The pressure in the bladder cannot be displayed, and for some comatose patients who cannot perceive abdominal distension, medical staff often need to observe closely regularly or even repeat B-ultrasound examinations to understand the drainage effect in the bladder, which also increases the workload of medical staff and wastes medical resources; (4) Some clinical patients need long-term indwelling urinary catheters, but the current use of urinary catheters often requires regular replacement to avoid infection, which undoubtedly increases the suffering of patients and wastes medical resources.

Therefore, it is urgent to develop a urine drainage device with good catheterization effect, real-time observation of bladder pressure information, direct understanding of drainage effect, and less trauma to patients.

Contents of the invention

In view of the above deficiencies, the object of the present invention is to provide an ingenious and reasonable structural design, easy to operate, can directly understand the pressure in the bladder in real time, and avoid blood clot blockage, good catheterization effect, and effectively reduce catheterization surgery. Painful Manometry Non-Invasive Anti-Clog Catheterization Device.

In order to achieve the above object, the technical solution provided by the present invention is: a pressure measuring non-invasive anti-blocking catheterization device, which includes:

A catheter made of hard material, with a urine inlet at the front end and a urine outlet at the tail end; the catheter made of hard material has a higher structural strength;

a bladder pressure measurement module connected to the catheter for monitoring the internal pressure of the bladder into which the catheter is inserted;

The internal urethral orifice blocking module is set on the catheter and is used to block the gap between the urethra and the outer wall of the catheter, so that the internal space of the bladder forms a closed space to prevent urinary fluid extravasation;

A noninvasive airbag module, the noninvasive airbag module is coated on the catheter to form a soft outer layer on the outer wall of the catheter to avoid urethral damage caused by catheter friction or long-term compression;

a diluent injection module, the diluent injection module is connected to the catheter, and is used for injecting the diluent into the bladder;

A sterilizing module, which is connected to the catheter and used to inject disinfectant into the urethra to sterilize the urethra;

The urine storage module, the liquid container is connected with the urine outlet of the catheter, and is used to hold the liquid flowing out through the catheter;

The anti-blocking catheterization module, the anti-blocking catheterization module is connected with the catheter, and is used to form a negative pressure in the catheter, suck the blood clot blocked on the urine inlet of the catheter into the catheter and/or make the blood clot blocked in the catheter The blood clot inside flows and drains to the urine storage module.

As an improvement of the present invention, the bladder pressure measurement module includes a balloon ball, a balloon airway, a connecting display tube and a pressure indication plate, and the balloon ball is arranged at the center of the front end surface of the catheter insertion site , the airbag airway is inlaid on the tube wall of the catheter, and one end of the airbag airway is connected to the balloon ball, the connecting display tube is arranged on the pressure indicating plate, and one end of the connecting display tube It is closed and contains a certain amount of colored liquid substance. The other end of the connecting display tube is connected to the other end of the airbag airway, wherein the diameters of the airbag airway and the connecting display tube are both ≤ 1/3 of the initial size of the airbag ball diameter.

As an improvement of the present invention, the urethral orifice blocking module includes a urethral orifice blocking balloon, a blocking airway and a blocking interface, and the urethral orifice blocking balloon is arranged at the front end of the catheter Above, the urine inlet is located between the balloon ball and the urethral orifice blocking balloon, the blocking interface is set at the tail of the catheter, and the blocking airway is inlaid in the On the tube wall of the catheter, and one end of the blocking airway insert is connected with the internal urethral orifice blocking balloon, and the other end is connected with the blocking interface.

As an improvement of the present invention, the noninvasive airbag module includes a urethral noninvasive airbag and a urethral noninvasive interface, the urethral noninvasive interface is arranged at the tail of the catheter, and a plurality of urethral noninvasive airbags are sequentially spaced along the axial direction of the urethra. It covers the outer wall of the first part of the catheter, and is connected with the non-invasive interface of the urethra through a urethral non-invasive airway, and the non-invasive urethral airway is embedded on the tube wall of the catheter.

As an improvement of the present invention, the number of the noninvasive urethral airbags is 3-10.

As an improvement of the present invention, the sterilizing module includes a disinfectant outlet, a disinfectant channel, and a disinfectant interface, the disinfectant interface is arranged at the tail of the catheter, and the disinfectant outlet is located at two adjacent urethral noninvasive airbags The disinfectant channel is inlaid on the tube wall of the catheter, and one end of the disinfectant channel is connected to the disinfectant interface, and the other end is connected to the disinfectant interface.

As an improvement of the present invention, the diluent injection module includes a diluent channel and a diluent interface, the diluent interface is arranged at the tail of the catheter, and the diluent channel is embedded in the tube wall of the catheter One end of the diluent channel is connected to the diluent interface, and the other end protrudes from the front end of the conduit to form a diluent outlet.

As an improvement of the present invention, the urine storage module includes a urine container and an outlet one-way valve, and the opening of the urine container communicates with the conduit through the outlet one-way valve.

As an improvement of the present invention, the anti-blocking catheterization module includes a negative pressure airbag, an airbag connecting tube, an air outlet one-way valve and an inhalation one-way valve, and the tail end of the catheter is provided with an opening to form the outlet Urine port, the negative pressure air bag is provided with an air outlet and an air suction port, the air outlet check valve is arranged on the air outlet, the air suction port is connected to one end of the air bag connecting pipe, and the other end of the air bag connecting pipe One end is connected with the connecting urine outlet through the suction one-way valve.

The beneficial effects of the present invention are: the structure design of the present invention is ingenious and reasonable, using the principle of negative pressure suction, when a small amount of foreign matter such as blood clots is produced in the bladder, it can still be drained out, effectively ensuring the effect of catheterization and drainage, that is, when the catheter is small When foreign objects such as blood clots are blocked, only the bedside attendants need to squeeze the negative pressure air bag to successfully suck out the blocked blood clots and other foreign objects. , It also greatly reduces the workload of medical staff, saving medical resources and medical costs. Equipped with a bladder pressure measurement module, due to the small diameter of the bladder airway and the connecting display tube of the bladder pressure measurement module, the small volume change of the pressure measurement ball due to the internal pressure of the bladder will It causes significant changes in the liquid level of the connected display tube; during use, the pressure in the bladder can be intuitively understood by observing the pressure indicator board with the naked eye, and the effect of urinary catheterization and drainage can be understood in real time. The catheter is made of hard material, which has high structural strength, so that the wall of the catheter will not collapse when it receives negative pressure, and the non-invasive balloon module covers the catheter to form a soft layer on the outer wall of the catheter. The outer layer can not only realize the negative pressure suction function, but also reduce the discomfort of the patient in the indwelling catheterization device, effectively reducing the pain caused by the catheterization operation to the patient. It can also be regularly disinfected through the sterilization module, which greatly reduces the incidence of infection caused by indwelling catheters, increases the safety of use, prolongs the effective indwelling time, reduces the frequency of replacement catheters, and greatly saves medical costs and relieves patients. pain of. In addition, the overall structure of the present invention is simple, easy to manufacture, and low in cost, which is favorable for wide popularization and application.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the catheter A-A in Fig. 1 .

detailed description

Referring to Fig. 1 and Fig. 2, a pressure-measuring non-invasive anti-blockage catheterization device provided in this embodiment includes: a catheter 1, a bladder pressure-measuring module 2, a urethral opening blocking module 3, and a non-invasive balloon module 4 , dilute liquid injection module 5, sterilization module 6, urine storage module 7 and anti-blocking catheterization module 8.

The catheter 1 is made of hard material with high structural strength; the front end of the catheter 1 is provided with a urine inlet 11, and the tail end is provided with a urine outlet; the bladder pressure measurement module 2 is connected to the catheter 1 , for monitoring the internal pressure of the bladder into which the catheter 1 is inserted; the urethral orifice blocking module 3 is arranged on the catheter 1, and is used to block the gap between the urethra and the outer wall of the catheter 1, so that the The inner space of the bladder forms a closed space to avoid extravasation of urine; the non-invasive airbag module 4 is coated on the catheter 1 to form a soft outer layer on the outer wall of the catheter 1 to avoid the leakage of urine from the catheter. Urethral injury caused by friction or prolonged compression; the diluent injection module 5 is connected to the catheter 1 for injecting the diluent into the bladder; the sterilizing module 6 is connected to the catheter 1, It is used to inject disinfectant solution into the urethra to sterilize the urethra; the liquid container is connected to the urine outlet of the catheter 1 and is used to hold the liquid flowing out of the catheter 1; the anti-blocking catheterization module 8 is connected to the catheter 1 connected, used to form a negative pressure in the catheter 1, suck the blood clot blocked on the urine inlet 11 of the catheter 1 into the catheter 1 and/or make the blood clot blocked in the catheter 1 flow and drain To the urine storage module 7.

Specifically, the bladder pressure measurement module 2 includes a balloon ball 21, a balloon airway 22, a connecting display tube 23 and a pressure indicating plate 24, and the balloon balloon 21 is arranged on the front end surface of the insertion site of the catheter 1 At the central position, the airbag airway 22 is inlaid on the tube wall of the catheter 1, and one end of the airbag airway 22 is connected to the balloon ball 21, and the connecting display tube 23 is arranged on the pressure indicating plate 24 , and one end of the connection display tube 23 is closed and contains a certain amount of colored liquid substance, the other end of the connection display tube 23 is connected with the other end of the airbag airway 22, wherein the airbag airway and the connection display tube The diameters were all ≤1/3 of the initial diameter of the balloon ball. Different color areas are marked on the pressure indicating plate 24, and the change of the internal pressure of the bladder can be observed by observing the length change of the colored liquid substance, so as to know the pressure inside the bladder, and the graded color indication of different color areas can be more intuitive. , and can continuously observe and understand the pressure in the bladder, avoiding the repeated and cumbersome traditional cystometry process and saving medical costs. Even non-medical personnel can still directly judge, which is convenient for non-professionals such as accompanying family members to detect abnormalities immediately. It can record the intravesical pressure and provide a basic source of clinical data. The bladder pressure measurement module 2 is especially useful for patients with mental disorders important.

The urethral orifice blocking module 3 includes a urethral orifice blocking airbag 31, a blocking airway 32 and a blocking interface 33. The urethral orifice blocking airbag 31 is arranged at the front end of the catheter 1, The urine inlet 11 is located between the balloon ball 21 and the urethral opening blocking balloon 31, the blocking interface 33 is arranged at the tail of the catheter 1, and the blocking airway 32 It is embedded on the tube wall of the catheter 1 , and one end of the blocking airway 32 is connected to the internal urethral orifice blocking balloon 31 , and the other end is connected to the blocking interface 33 . When inflated, the urethral opening blocking air bag 31 expands, slowly filling the gap between the urethra and the outer wall of the catheter 1, so that the inner space of the bladder forms a closed space.

The non-invasive airbag module 4 includes a urethral non-invasive air bag 41 and a urethral non-invasive interface 42, the urethral non-invasive interface 42 is arranged at the tail of the catheter 1, and a plurality of urethral non-invasive air bags 41 are coated at intervals along the axial direction of the urethra. The outer wall of the first part of the catheter 1 is connected to the non-invasive urethral interface 42 through a urethral non-invasive airway 43 , and the non-invasive urethral airway 43 is embedded on the tube wall of the catheter 1 . The urethral non-invasive air bag 41 is coated on the catheter 1 and maintains a certain internal air pressure so that the position of the catheter 1 in the urethra is relatively fixed. There is a gap between the urethral non-invasive air bag 41 and the urethral non-invasive air bag 41, which is convenient for setting the outlet of the disinfectant . The disinfectant flows out from between the two adjacent urethral non-invasive airbags 41, and the sterilization efficiency is better. In this embodiment, the number of the urethral non-invasive airbags 41 is preferably five, which has good stability, and there are more positions for setting the disinfectant outlets to improve the sterilization effect. In other embodiments, the number of the urethral non-invasive airbags 41 may be 3-10, such as 3, 4, 6 or more.

The sterilizing module 6 includes a disinfectant outlet, a disinfectant channel 61 and a disinfectant interface 62, the disinfectant interface 62 is arranged at the tail of the catheter 1, and the disinfectant outlet is located between two adjacent urethral noninvasive airbags 41 The disinfectant channel 61 is inlaid on the tube wall of the catheter 1, and one end of the disinfectant channel 61 is connected to the disinfectant interface 62, and the other end is connected to the disinfectant interface 62. The indwelling catheter 1 can be regularly sterilized through the sterilization module 6, which greatly reduces the incidence of infection caused by the indwelling catheter 1, ensures the safety of use, and prolongs the indwelling time.

The diluent injection module 5 includes a diluent channel 51 and a diluent interface 52, the diluent interface 52 is arranged at the tail of the catheter 1, and the diluent channel 51 is inlaid on the tube wall of the catheter 1 , and one end of the diluent channel 51 is connected to the diluent interface 52, and the other end protrudes from the front end of the conduit 1 to form a diluent outlet. The diluent can be injected into the bladder through the diluent injection module 5 to dilute the urine for easy drainage and also reduce the formation of foreign matter such as blood clots, thereby improving the drainage and catheterization effect.

The urine storage module 7 includes a urine container 71 and an outlet one-way valve 72 , the opening of the urine container 71 communicates with the conduit 1 through the outlet one-way valve 72 . Under the action of the outlet check valve 72 , the urine in the catheter 1 can only flow into the urine container 71 , and the urine in the urine container 71 cannot flow back into the catheter 1 in reverse.

The anti-blocking catheterization module 8 includes a negative pressure airbag 81, an airbag connecting pipe 82, an air outlet check valve 83 and an inhalation check valve 84. The tail end of the catheter 1 is provided with an opening to form the urine outlet. , the negative pressure air bag 81 is provided with an air outlet and an air suction port, the air outlet check valve 83 is arranged on the air outlet, the air suction port is connected to one end of the air bag connecting pipe 82, and the air bag connecting pipe 82 The other end of the suction valve 84 is connected to the connecting urine outlet through the suction check valve 84. When extruding the negative pressure airbag 81, the suction check valve 84 is automatically closed, and the air outlet check valve 83 is automatically opened to release the gas in the negative pressure airbag 81, and the negative pressure airbag 81 is released, and the negative pressure airbag 81 is in its own Under the effect of deformation elastic force, it slowly returns to its original shape. At this time, the air outlet check valve 83 is automatically closed, and the air intake check valve 84 is automatically opened, so that suction is generated to the suction pipe, and the blood that is blocked on the urine inlet port 11 of the catheter 1 will be blocked. The clot is sucked into the catheter 1 and/or the blood clot blocked in the catheter 1 flows, and is drained to the urine storage module 7. The catheterization effect is good, not only can the patient avoid the pain of repeated insertion and removal of the catheter 1, It also greatly reduces the workload of medical staff, saving medical resources and medical costs.

When in use, the catheter 1 is inserted into the bladder through the urethra. Since the urethral non-invasive air bag 41 covers the catheter 1, a soft outer layer can be formed, which can effectively reduce the pain of catheterization operation and cause less damage, and effectively improve the safety and security of the drainage operation. effectiveness.

At this time, through the blocking interface 33 and the urethral non-invasive interface 42, the urethral opening blocking airbag 31 and the urethral non-invasive airbag 41 are respectively supplied with air, and the urethral opening blocking airbag 31 is inflated, so that the inner space of the bladder forms a closed space; The non-invasive balloon 41 is adaptively inflated with air supply, so that the position of the catheter 1 in the urethra is relatively fixed, which is convenient for operation. At this time, the urine in the bladder enters the catheter 1 through the urine inlet 11 and is drained to the urine container 71 through the catheter 1 to achieve the purpose of catheterization.

When foreign objects such as blood clots block the urine inlet 11 or remain in the catheter 1, the negative pressure airbag 81 can be squeezed, and the straw can be sucked by using the principle of negative pressure suction, and then blocked on the urine inlet 11 of the catheter 1 The blood clot sucked into the catheter 1 and/or the blood clot blocked in the catheter 1 flows and is drained to the urine container 71 to achieve the purpose of preventing blockage. At the same time, the diluent can be injected into the bladder through the diluent interface 52 to facilitate drainage of the diluted urine, and at the same time reduce the formation of foreign bodies such as blood clots and avoid blockage, thereby improving the drainage and catheterization effect.

In addition, disinfectant can be regularly injected through the disinfectant interface 62 to sterilize the catheter 1 indwelling in the bladder, greatly reducing the incidence of infection caused by the indwelling catheter 1, ensuring the safety of use, prolonging the indwelling time, and reducing the need for replacement catheters. The frequency of the urinary catheter greatly saves medical costs and reduces the suffering of patients.

According to the disclosure and teaching of the above-mentioned specification, those skilled in the art to which the present invention belongs can also make changes and modifications to the above-mentioned embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention. As described in the above embodiments of the present invention, other devices obtained by using the same or similar components are within the protection scope of the present invention.

Claims (9)

1. A manometric non-invasive anti-blocking urinary catheterization device, characterized in that it comprises: A catheter made of hard material, with a urine inlet at the front end and a urine outlet at the tail end; a bladder pressure measurement module connected to the catheter for monitoring the internal pressure of the bladder into which the catheter is inserted; A urethral orifice blocking module, the urethral orifice blocking module is arranged on the catheter, and is used to block the gap between the urethra and the outer wall of the catheter, so that the inner space of the bladder forms a closed space; A noninvasive airbag module, the noninvasive airbag module is coated on the catheter to form a soft outer layer on the outer wall of the catheter; a diluent injection module, the diluent injection module is connected to the catheter, and is used for injecting the diluent into the bladder; A sterilizing module, which is connected to the catheter and used to inject disinfectant into the urethra; A urine storage module, the urine storage module is connected to the urine outlet of the catheter, and is used to contain the liquid flowing out of the catheter; The anti-blocking catheterization module, the anti-blocking catheterization module is connected with the catheter, and is used to form a negative pressure in the catheter, suck the blood clot blocked on the urine inlet of the catheter into the catheter and/or make the blood clot blocked in the catheter The blood clot inside flows and drains to the urine storage module; The bladder pressure measurement module includes a balloon ball, a balloon airway, a connecting display tube, and a pressure indication plate. On the tube wall of the catheter, and one end of the airbag airway is connected to the balloon, the connecting display tube is arranged on the pressure indicator plate, and one end of the connecting display tube is closed, and contains a certain amount of colored liquid substance, the other end of the connection display tube is connected with the other end of the air bag airway. 2 . The manometry non-invasive anti-blockage catheterization device according to claim 1 , wherein the diameters of the balloon airway and the connecting display tube are both ≤ 1/3 of the initial diameter of the balloon ball. 3 . 3. The pressure measuring non-invasive anti-blockage catheterization device according to claim 2, characterized in that, the internal urethral orifice blocking module includes a urethral internal orifice blocking airbag, a blocking airway and a blocking interface, the The urethral orifice blocking airbag is arranged at the front end of the catheter, the urine inlet is located between the balloon ball and the urethral orifice blocking airbag, and the blocking interface is arranged on the The tail of the catheter, the blocking airway is inlaid on the tube wall of the catheter, and one end of the blocking airway is connected to the internal urethral orifice blocking balloon, and the other end is connected to the blocking interface. connect. 4. The pressure-measuring non-invasive anti-blocking catheterization device according to claim 3, wherein the non-invasive air bag module includes a urethral non-invasive air bag and a urethral non-invasive interface, and the urethral non-invasive interface is arranged at the tail of the catheter. Two urethral non-invasive airbags are sequentially coated on the outer wall of the first part of the catheter at intervals along the axial direction of the urethra, and are connected to the non-invasive interface of the urethra through a non-invasive urethral airway, and the non-invasive urethral airway is embedded in the tube wall of the catheter superior. 5 . The manometry non-invasive anti-blockage catheterization device according to claim 4 , wherein the number of the urethral non-invasive airbags is 3-10. 5 . 6. The pressure-measuring non-invasive anti-blocking catheterization device according to claim 4, characterized in that, the sterilization module includes a disinfectant outlet, a disinfectant channel and a disinfectant interface, and the disinfectant interface is arranged at the end of the catheter. At the tail, the disinfectant outlet is located between two adjacent urethral noninvasive airbags, the disinfectant channel is inlaid on the tube wall of the catheter, and one end of the disinfectant channel is connected to the disinfectant interface, The other end is connected with the disinfectant outlet. 7. The pressure measuring non-invasive anti-blockage catheterization device according to claim 1, characterized in that, the diluent injection module includes a diluent channel and a diluent interface, and the diluent interface is arranged at the tail of the catheter The dilution liquid channel is embedded on the tube wall of the conduit, and one end of the dilution liquid channel is connected to the dilution liquid interface, and the other end protrudes from the front end of the conduit to form a dilution liquid outlet. 8. The pressure measuring non-invasive anti-blocking urinary catheterization device according to claim 1, wherein the urine storage module includes a urine container and a deriving one-way valve, and the opening of the urine container passes through the deriving one-way valve communicate with the conduit. 9. The pressure measuring non-invasive anti-blockage catheterization device according to claim 1, characterized in that the anti-blockage catheterization module includes a negative pressure airbag, an airbag connecting tube, an air outlet one-way valve and an inhalation one-way valve, The tail end of the catheter is provided with an opening to form the urine outlet, the negative pressure air bag is provided with an air outlet and an air suction port, the air outlet check valve is arranged on the air outlet, and the air suction port is connected to the air outlet. One end of the air bag connecting pipe is connected, and the other end of the air bag connecting pipe is connected with the urine outlet through the suction one-way valve.