Portable urinary catheter

Abstract

The utility model relates to portable catheter, portable catheter includes catheter body, the pipe, valve subassembly and switch subassembly, the catheter body is connected with the pipe, and the inside of pipe is opened sealed cavity, and the second end of sealed cavity has the spigot, valve subassembly sets up in sealed cavity, and with the lateral wall of sealed cavity is connected to seal sealed cavity, switch subassembly includes switch piece and with flow guide pipe department, switch piece swing joint is in the pipe far from the one end of catheter body, and the one end of flow guide pipe department is inserted into sealed cavity from the spigot, and the other end of flow guide pipe department is communicated with outside, switch piece can be along the direction of being close to valve subassembly or being far from valve subassembly and move on the pipe, and flow guide pipe department moves to butt in valve subassembly along with switch piece, triggers valve subassembly to open, and flow guide pipe department is communicated with the first end of sealed cavity. Make the patient be able to control the discharge of urine self, need not through the urine bag to collect urine, simple structure, will not extra increase the burden of patient.

Description

Technical Field

[0001] This utility model relates to the field of urinary catheterization technology, and in particular to a portable urinary catheter. Background Technology

[0002] A urinary catheter is a common medical device that can be inserted into the bladder through the urethra to drain urine from the bladder to the outside of the body.

[0003] Traditional urinary catheters are connected to a urine bag to collect urine. This type of catheter has drawbacks: firstly, the catheter needs to extend outside the patient's body, and the urine bag must be worn daily, causing inconvenience; secondly, patients cannot control their urination. These drawbacks cause significant inconvenience to patients who have been discharged but still require a catheter. Utility Model Content

[0004] Therefore, it is necessary to provide a portable urinary catheter.

[0005] A portable urinary catheter includes: a catheter body, a receiving tube, a valve assembly, and a switch assembly;

[0006] One end of the urinary catheter body is provided with a drainage port, and the other end of the urinary catheter body is connected to the receiving tube. A sealing cavity is opened inside the receiving tube. The first end of the sealing cavity has a flow port, which communicates with the urinary catheter body. The second end of the sealing cavity has an insertion port.

[0007] The valve assembly is disposed within the sealing cavity and is connected to the side wall of the sealing cavity to seal the sealing cavity, thereby isolating the first end and the second end of the sealing cavity.

[0008] The switching assembly includes a switch element and a guide tube connected to the switch element. The switch element is movably connected to the end of the receiving tube away from the urinary catheter body. One end of the guide tube is inserted into the sealing cavity through the insertion port, and the other end of the guide tube communicates with the outside. The switch element is detachably connected to the receiving tube, and the switch element can move on the receiving tube in a direction close to or away from the valve assembly. The guide tube moves with the switch element until it abuts against the valve assembly, triggering the valve assembly to open, so that the guide tube communicates with the first end of the sealing cavity. The valve assembly remains closed when the guide tube does not touch the valve assembly.

[0009] In one embodiment, the valve assembly includes a valve body and at least two elastic diaphragms. The outer side of the valve body is connected to the sidewall of the sealing cavity to seal the sealing cavity. A valve channel is formed inside the valve body. One side of each elastic diaphragm is connected to the sidewall of the valve channel, and the other side of each elastic diaphragm movably abuts against and closes the valve channel. The flow guide tube moves with the switching element to abut against each elastic diaphragm, expanding each elastic diaphragm to trigger the valve assembly to open.

[0010] In one embodiment, the valve body has at least two inclined surfaces at one end near the flow port. Each inclined surface gradually slopes from one side near the edge of the valve channel to one side near the middle of the valve channel toward the flow port, and each elastic diaphragm is attached to each inclined surface.

[0011] In one embodiment, the width of the guide tube portion near the valve assembly gradually decreases from a position away from the valve assembly to a position near the valve assembly.

[0012] In one embodiment, the end of the flow guide near the valve assembly is configured as a frustum or a cone.

[0013] In one embodiment, the outer surface of the end of the receiving tube away from the urinary catheter body is provided with a first threaded structure. The switching element includes a threaded portion and a discharge portion. The threaded portion is configured as a cylindrical structure. The inner surface of the threaded portion is provided with a second threaded structure. The threaded portion is sleeved on the outer side of the end of the receiving tube away from the urinary catheter body, and the second threaded structure is threadedly connected to the first threaded structure. The discharge portion is connected to one end of the threaded portion, and a discharge port is opened in the middle of the discharge portion. One end of the guide tube portion is connected to the middle of the discharge portion, and the discharge port communicates with the interior of the guide tube portion.

[0014] In one embodiment, a protective shell is also included, which is connected to the outer surface of the receiving tube and is at least partially bent, extending along a direction close to the ureteral body.

[0015] In one embodiment, the receiving tube includes an integrally connected first tube and second tube. The end of the first tube away from the second tube is connected to the urinary catheter body. A sealing cavity is formed inside the second tube, and the insertion port is formed at the end of the second tube away from the first tube. The width of the second tube is greater than the width of the urinary catheter body, and the width of the first tube gradually decreases from the end near the second tube to the end near the urinary catheter body.

[0016] In one embodiment, the device further includes an air bladder and an air tube, the air tube being connected to the outside of the urinary catheter body, the air bladder being disposed at the end of the urinary catheter body away from the receiving tube, and the air tube communicating with the air bladder.

[0017] In one embodiment, the system further includes an air delivery cylinder connected to the end of the air tube away from the airbag, and the air delivery cylinder is fixedly connected to the receiving pipe.

[0018] The beneficial effects of this invention are as follows: The urinary catheter body is inserted into the bladder through the urethra. The valve assembly remains closed when not triggered, effectively preventing urine from flowing out of the bladder. When urination is needed, simply move the switch assembly closer to the valve assembly and open it, allowing the guide tube to be inserted into the first end of the sealed cavity. This allows urine to flow sequentially along the catheter body, the flow port, the first end of the sealed cavity, and the guide tube to the outside, thus achieving urine discharge. After urination is complete, move the switch assembly away from the valve assembly, closing the valve assembly and preventing further urine discharge. This structure allows patients to control their urination independently without needing a urine bag for collection. Its simple structure does not add extra burden to the patient, making daily life more convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a portable urinary catheter in one embodiment.

[0021] Figure 2 This is a three-dimensional exploded view of a portable urinary catheter in one embodiment.

[0022] Figure 3 This is a three-dimensional exploded view of the portable urinary catheter in one embodiment;

[0023] Figure 4 This is a three-dimensional structural diagram of the valve assembly and switch assembly of a portable urinary catheter in one embodiment;

[0024] Figure 5 This is a schematic cross-sectional view of a portable urinary catheter in one embodiment.

[0025] Explanation of reference numerals in the attached drawings: 10, urinary catheter; 100, catheter body; 200, receiving tube; 300, valve assembly; 400, switch assembly; 101, drainage port; 201, sealing cavity; 202, flow port; 203, insertion port; 410, switch element; 420, drainage tube section; 310, valve body; 320, elastic diaphragm; 330, inclined surface; 421, drainage hole; 411, threaded section; 412, discharge section; 413, discharge outlet; 230, first threaded structure; 414, second threaded structure; 500, protective shell; 210, first tube section; 220, second tube section; 610, air bag; 620, trachea; 630, air delivery cylinder; Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, a portable urinary catheter 10 is provided, including a catheter body 100, a receiving tube 200, a valve assembly 300, and a switch assembly 400;

[0028] One end of the urinary catheter body 100 is provided with a drainage port 101, and the other end of the urinary catheter body 100 is connected to the receiving pipe 200. A sealing cavity 201 is provided inside the receiving pipe 200. The first end of the sealing cavity 201 has a flow port 202, which communicates with the urinary catheter body 100. The second end of the sealing cavity 201 has an insertion port 203.

[0029] The valve assembly 300 is disposed in the sealing cavity 201 and connected to the side wall of the sealing cavity 201 to seal the sealing cavity 201 and isolate the first end and the second end of the sealing cavity 201.

[0030] The switching assembly 400 includes a switch element 410 and a guide tube portion 420 connected to the switch element 410. The switch element 410 is movably connected to one end of the receiving tube 200 away from the urinary catheter body 100. One end of the guide tube portion 420 is inserted into the sealing cavity 201 through the insertion port 203, and the other end of the guide tube portion 420 communicates with the outside. The switch element 410 is detachably connected to the receiving tube 200, and the switch element 410 can move on the receiving tube 200 in a direction close to or away from the valve assembly 300. When the guide tube portion 420 moves with the switch element 410 to abut against the valve assembly 300, it triggers the valve assembly 300 to open, so that the guide tube portion 420 communicates with the first end of the sealing cavity 201, and the valve assembly 300 remains closed when the guide tube portion 420 does not touch the valve assembly 300.

[0031] In this embodiment, the urinary catheter body 100 is inserted into the bladder through the urethra. The drainage port 101 allows urine from the bladder to enter the interior of the urinary catheter body 100. The urine flows through the urinary catheter body 100 to the receiving pipe 200. The outer surface of the valve assembly 300 is connected to the sidewall of the sealing cavity 201, thus sealing the sealing cavity 201 of the receiving pipe 200. The first and second ends of the sealing cavity 201 are isolated and not connected. The valve assembly 300 is a normally closed valve; therefore, it remains closed during normal operation to prevent urine from flowing out. When the valve assembly 300 is opened, the first and second ends of the sealing cavity 201 are connected through the open valve assembly 300.

[0032] The switch element 410 is sleeved on the outside of the receiving tube 200. The switch element 410 can move along the axial or longitudinal direction of the receiving tube 200. When the switch element 410 moves, it drives the guide tube section 420 to move. When the guide tube section 420 abuts against the valve assembly 300 and moves further towards the urinary catheter body 100, the valve assembly 300 is triggered and opened, allowing one end of the guide tube section 420 to connect with the first end of the sealing cavity 201. Thus, under the pressure of the bladder, urine at the first end of the sealing cavity 201 flows to the outside along the guide tube section 420. After urination, the switch element 410 is moved away from the valve assembly 300, and the valve assembly 300 closes again, preventing urine from being discharged. This structure allows the patient to control urine output independently without the need for urine collection via a urine bag. Its simple structure does not add extra burden to the patient, making daily life more convenient.

[0033] In one embodiment, the valve assembly 300 is a one-way valve. In this embodiment, the conduction direction of the valve assembly 300 is from the urine catheter body 100 to the receiving pipe 200. In this way, when the one-way valve is triggered to conduct, urine can be effectively guided to flow sequentially along the urine catheter body 100, the flow port 202, the first end of the sealing cavity 201, and the guide pipe section 420 to the outside.

[0034] To simplify the structure of the valve assembly and to improve the sealing performance and ease of opening of the valve assembly 300, in one embodiment, such as Figure 4 As shown, the valve assembly 300 includes a valve body 310 and at least two elastic diaphragms 320. The outer side of the valve body 310 is connected to the side wall of the sealing cavity 201 to seal the sealing cavity 201. A valve channel is formed inside the valve body 310. One side of each elastic diaphragm 320 is connected to the side wall of the valve channel, and the other side of each elastic diaphragm 320 moves to abut against and close the valve channel. The guide tube 420 moves with the switch member 410 to abut against each elastic diaphragm 320, opening each elastic diaphragm 320 to trigger the valve assembly 300 to open.

[0035] In this embodiment, the elastic diaphragm 320 is elastic. When the elastic diaphragm 320 is stretched open by the guide tube portion 420 and bent outward, the valve channel opens, and one end of the guide tube portion 420 is inserted into the first end of the sealing cavity 201, allowing urine to flow out along the guide tube portion 420. When the guide tube portion 420 moves away from the valve assembly 300 and disengages from the elastic diaphragm 320, the elastic diaphragm 320 returns to its shape under its own elastic force and abuts against each other, thereby closing the valve channel. It is worth mentioning that the material and thickness of the elastic diaphragm 320 can be set according to the pressure of human urine. The greater the thickness of the elastic diaphragm 320, the higher its hardness and the greater its elasticity. Therefore, the thickness and material of the elastic diaphragm 320 can be set according to the pressure of urine in the human bladder, so that the elastic diaphragm 320 can remain closed under bladder pressure, preventing urine leakage, and allowing the valve assembly 300 to conduct only when the guide tube portion 420 stretches the elastic diaphragm 320.

[0036] In one embodiment, the elastic diaphragm 320 is made of rubber, silicone, or elastic plastic. In this embodiment, rubber, silicone, and plastic have good elasticity and toughness, and can recover after bending deformation, thereby fully sealing the valve assembly 300.

[0037] In one embodiment, such as Figure 4As shown, the valve body 310 has at least two inclined surfaces 330 at one end near the flow port 202. Each inclined surface 330 gradually tilts from one side near the edge of the valve channel to one side near the middle of the valve channel toward the flow port 202. Each elastic diaphragm 320 is attached to each inclined surface 330.

[0038] In this embodiment, one side of each elastic diaphragm 320 is connected to the edge of the inclined surface 330, and the other side of each elastic diaphragm 320 abuts against each other. Since the inclined surface 330 is inclined from the outside towards the middle of the valve channel and gradually towards the flow port 202, its inclination direction is consistent with the movement direction of the guide tube 420 when opening the elastic diaphragm 320. In this way, when the guide tube 420 moves from the direction away from the flow port 202 towards the direction closer to the flow port 202, it abuts against each elastic diaphragm 320, which can better open the elastic diaphragm 320, which is conducive to the rapid opening of the elastic module. And when the guide tube 420 is separated from the elastic diaphragm 320, the elastic diaphragm 320 can close better under its own elasticity. The inclined surface 330 can make the elastic diaphragm 320 fit more fully, resulting in better sealing.

[0039] In one embodiment, such as Figure 4 As shown, there are two inclined surfaces 330, which are symmetrically arranged about one diameter of the cross-section of the valve body 310. There are also two elastic diaphragms 320, each of which is attached to one inclined surface 330. One side of each elastic diaphragm 320 is connected to the edge of the inclined surface 330, and the other side abuts against the other elastic diaphragm 320. In this way, by setting two symmetrically arranged elastic diaphragms 320, the structure of the valve assembly 300 is simpler. Furthermore, since there are fewer elastic diaphragms 320, the gaps between the elastic diaphragms 320 are reduced, resulting in better sealing of the valve assembly 300.

[0040] In order to better stretch the elastic diaphragm 320 and open the valve assembly 300, in one embodiment, the width of the end of the guide tube portion 420 near the valve assembly 300 gradually decreases from a position away from the valve assembly 300 to a position near the valve assembly 300.

[0041] In this embodiment, the end of the guide tube 420 is set to be pointed. Since the width of the end of the guide tube 420 is small, it is advantageous to insert it between the elastic diaphragms 320. As the insertion depth increases, the elastic diaphragms 320 are stretched more, which helps to better stretch the elastic diaphragms 320 and open the valve assembly 300.

[0042] In one embodiment, such as Figure 4As shown, the end of the flow guide tube 420 near the valve assembly 300 is configured as a frustum or a cone.

[0043] In this embodiment, the end of the guide tube 420 is set to a frustum or cone shape, which can help to better expand the elastic diaphragm 320 and open the valve assembly 300.

[0044] In this embodiment, as Figure 4 As shown, the guide tube section 420 has several guide holes 421 at one end near the valve assembly 300. Each guide hole 421 is connected to the interior of the guide tube. Thus, when the guide tube section 420 is inserted into the valve assembly 300 and triggers the valve assembly 300 to open, the end of the guide tube section 420 is inserted to the first end of the sealing cavity 201. The urine at the first end of the sealing cavity 201 will flow into the interior of the guide tube section 420 along the guide holes 421, and then flow to the outside through the guide tube section 420 to realize the discharge of urine.

[0045] In one embodiment, please combine Figures 1 to 4 The outer surface of the receiving tube 200 away from the urinary catheter body 100 is provided with a first thread structure 230. The switching element 410 includes a threaded portion 411 and a discharge portion 412. The threaded portion 411 is configured as a cylindrical structure. The inner surface of the threaded portion 411 is provided with a second thread structure 414. The threaded portion 411 is sleeved on the outer side of the receiving tube 200 away from the urinary catheter body 100, and the second thread structure 414 is threadedly connected to the first thread structure 230. The discharge portion 412 is connected to one end of the threaded portion 411, and the discharge portion 412 has a discharge outlet 413 in the middle. One end of the guide tube portion 420 is connected to the middle of the discharge portion 412, and the discharge outlet 413 communicates with the interior of the guide tube portion 420.

[0046] In this embodiment, the receiving tube 200 and the switching element 410 are connected by threads. Specifically, the threaded part 411 is a cylindrical structure that is fitted onto the end of the receiving tube 200 away from the urine catheter body 100. The threaded part 411 is screwed to the receiving tube 200 using the first thread structure 230 and the second thread structure 414. The discharge port 413 of the discharge part 412 is connected to the guide tube part 420, so that urine can be discharged from the discharge port 413 along the guide tube part 420. Specifically, when the threaded portion 411 is turned, causing it to rotate and move toward the urinary catheter body 100, the threaded portion 411 drives the discharge portion 412 and the guide tube portion 420 to move toward the valve assembly 300, thereby opening the valve assembly 300. Urine in the first end of the sealing cavity 201 flows along the guide tube portion 420 to the discharge outlet 413 and is discharged from the discharge outlet 413. After urination is completed, the threaded portion 411 is turned in the opposite direction, causing it to move away from the urinary catheter body 100, driving the discharge portion 412 and the guide tube portion 420 to move away from the valve assembly 300. The guide tube portion 420 disengages from the valve assembly 300, and the valve assembly 300 closes.

[0047] To achieve relative movement between the receiving tube and the switching element, and to ensure that the guide tube portion of the switching element remains away from the valve assembly when the valve assembly is closed, in another embodiment, a first snap-fit ​​structure is provided on the outer surface of the end of the receiving tube away from the urinary catheter body. The switching element includes a snap-fit ​​sleeve portion and a discharge portion. A second snap-fit ​​structure is provided on the inner side of the snap-fit ​​sleeve portion. The snap-fit ​​sleeve portion is fitted onto the outer side of the end of the receiving tube away from the urinary catheter body, and the first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted together. The discharge portion is connected to one end of the snap-fit ​​sleeve portion, and a discharge outlet is provided in the middle of the discharge portion. One end of the guide tube portion is connected to the middle of the discharge portion, and the discharge outlet communicates with the interior of the guide tube portion.

[0048] In this embodiment, the snap-fit ​​sleeve of the switch component is connected to the receiving pipe via a snap-fit ​​mechanism, i.e., a first snap-fit ​​structure and a second snap-fit ​​structure are snap-fitted together. The connection method between the first and second snap-fit ​​structures can be that one is a snap-fit ​​and the other a slot, with the snap-fit ​​movably engaged in the slot; or one is a snap-fit ​​block and the other a snap-fit ​​piece, with the snap-fit ​​block and snap-fit ​​piece snap-fitted together. It is worth noting that the snap-fit ​​structure can be implemented using existing snap-fit ​​structures known to those skilled in the art, which will not be described in detail in this embodiment. In specific use, when the first and second snap-fit ​​structures are in the snap-fitted connection state, the distance between the snap-fit ​​sleeve and the valve assembly reaches its maximum, and the switch component and the receiving pipe are relatively fixed. At this time, the valve assembly remains closed. When urination is required, the snap-fit ​​of the first and second snap-fit ​​structures is released by squeezing, pressing, or twisting, allowing the switch component to move relative to the receiving pipe, moving the snap-fit ​​sleeve towards the valve assembly. The snap-fit ​​sleeve then drives the discharge section and the guide pipe section towards the valve assembly. The valve assembly can be opened by moving the valve, allowing urine in the first end of the sealed cavity to flow along the guide tube to the outlet and be discharged. After urination, the locking sleeve moves in the opposite direction, causing it to move away from the urinary catheter body. This causes the discharge part and the guide tube to move away from the valve assembly, disengaging the guide tube from the valve assembly and closing the valve assembly. Then, by squeezing, pressing, or twisting, the first and second locking structures are locked together, thus locking the switch assembly onto the receiving tube and keeping the valve assembly closed.

[0049] To achieve relative movement between the receiving tube and the switching element, and to ensure that the flow guide section of the switching element remains away from the valve assembly when the valve assembly is closed, in another embodiment, the switching element includes a sleeve section and a discharge section. The sleeve section is fitted onto the outer side of the end of the receiving tube away from the catheter body. The discharge section is connected to one end of the snap-fit ​​sleeve section. The sleeve section is connected to the receiving tube via a spring, and a discharge port is provided in the middle of the discharge section. One end of the flow guide section is connected to the middle of the discharge section, and the discharge port communicates with the interior of the flow guide section. Furthermore, the receiving tube is provided with a limiting portion, and a stop portion is provided on the inner surface of the sleeve section, the stop portion movably abutting against the limiting portion.

[0050] In this embodiment, under the elastic force of the spring, the distance between the sleeve and the valve assembly reaches its maximum, and the limiting part abuts against the stop part to prevent the sleeve from falling off the receiving pipe. At this time, the valve assembly remains closed. When urination is required, force is applied to the sleeve, allowing the switching assembly to move relative to the receiving pipe, causing the sleeve to move closer to the valve assembly. The sleeve drives the discharge part and the guide tube to move closer to the valve assembly, and the valve assembly can be opened for urination. After urination is finished, the sleeve is released, allowing it to move away from the urinary catheter body under the elastic force of the spring. This drives the discharge part and the guide tube to move away from the valve assembly, the guide tube disengages from the valve assembly, and the valve assembly closes. In this way, the valve assembly can be automatically closed by the elastic force of the spring, and the sleeve only needs to be pressed when urinating, making the urination process more convenient.

[0051] In addition, in some other embodiments, the above-mentioned combination of threaded structure and spring can be used to connect the receiving tube and the switch assembly. That is, the switch can be connected to the receiving tube by threads, and turning the switch can realize the movement of the switch relative to the receiving tube. The spring provides elastic force to the switch so that the guide tube is kept away from the valve assembly, so that the valve assembly is kept closed.

[0052] In one embodiment, such as Figures 1 to 3 As shown, the urinary catheter 10 also includes a protective shell 500, which is connected to the outer surface of the receiving tube 200 and is at least partially bent, extending along a direction close to the catheter body 100.

[0053] In this embodiment, it is applied to male patients. The protective shell 500 is used to cover and cover the glans of the male patient. By setting the protective shell 500, the male patient can wear it more comfortably.

[0054] In one embodiment, the number of protective shells 500 is two.

[0055] In one embodiment, such as Figure 3 As shown, the receiving tube 200 includes a first tube portion 210 and a second tube portion 220 integrally connected. The end of the first tube portion 210 away from the second tube portion 220 is connected to the urinary catheter body 100. A sealing cavity 201 is formed inside the second tube portion 220, and the insertion port 203 is formed at the end of the second tube portion 220 away from the first tube portion 210. The width of the second tube portion 220 is greater than the width of the urinary catheter body 100. The width of the first tube portion 210 gradually decreases from the end near the second tube portion 220 to the end near the urinary catheter body 100.

[0056] In this embodiment, the first tube portion 210 of the receiving tube 200 is frustoconical, and the width of the end of the first tube portion 210 near the urinary catheter body 100 is the same as the width of the urinary catheter body 100. As the first tube portion 210 gradually approaches the second tube portion 220, the width of the first tube portion 210 increases, which is conducive to the smooth discharge of urine.

[0057] In one embodiment, please combine Figure 1 , Figure 2 , Figure 3 and Figure 5 The catheter 10 also includes a balloon 610 and a trachea 620. The trachea 620 is connected to the outside of the catheter body 100. The balloon 610 is located at the end of the catheter body 100 away from the receiving tube 200. The trachea 620 is connected to the balloon 610.

[0058] In this embodiment, after the urinary catheter body 100 is inserted into the bladder along the patient's urethra, air is supplied to the balloon 610 through the trachea 620, causing the balloon 610 to expand and lock itself at the interface between the bladder and the urethra, thereby preventing the urinary catheter body 100 from slipping out of the urethra.

[0059] In one embodiment, such as Figure 2 and Figure 5 As shown, the urinary catheter 10 also includes an air supply cylinder 630, which is connected to the end of the air tube 620 away from the air bag 610, and the air supply cylinder 630 is fixedly connected to the receiving tube 200.

[0060] In this embodiment, by setting up the air supply cylinder 630, the end of the air tube 620 can be effectively supported, which is beneficial for medical staff to operate the air bag 610 for inflation.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A portable urinary catheter, characterized in that, include: Urinary catheter body, receiving pipe, valve assembly, and switch assembly; One end of the urinary catheter body is provided with a drainage port, and the other end of the urinary catheter body is connected to the receiving tube. A sealing cavity is opened inside the receiving tube. The first end of the sealing cavity has a flow port, which communicates with the urinary catheter body. The second end of the sealing cavity has an insertion port. The valve assembly is disposed within the sealing cavity and is connected to the side wall of the sealing cavity to seal the sealing cavity, thereby isolating the first end and the second end of the sealing cavity. The switching assembly includes a switch element and a guide tube connected to the switch element. The switch element is movably connected to the end of the receiving tube away from the urinary catheter body. One end of the guide tube is inserted into the sealing cavity through the insertion port, and the other end of the guide tube communicates with the outside. The switch element is detachably connected to the receiving tube, and the switch element can move on the receiving tube in a direction close to or away from the valve assembly. The guide tube moves with the switch element until it abuts against the valve assembly, triggering the valve assembly to open, so that the guide tube communicates with the first end of the sealing cavity. The valve assembly remains closed when the guide tube does not touch the valve assembly.

2. The portable urinary catheter according to claim 1, characterized in that, The valve assembly includes a valve body and at least two elastic diaphragms. The outer side of the valve body is connected to the side wall of the sealing cavity to seal the sealing cavity. A valve channel is formed inside the valve body. One side of each elastic diaphragm is connected to the side wall of the valve channel, and the other side of each elastic diaphragm moves to abut against and close the valve channel. The flow guide tube moves with the switching element to abut against each elastic diaphragm, opening each elastic diaphragm to trigger the valve assembly to open.

3. The portable urinary catheter according to claim 2, characterized in that, The valve body has at least two inclined surfaces at one end near the flow port. Each inclined surface gradually tilts towards the flow port from one side near the edge of the valve channel to one side near the middle of the valve channel. Each elastic diaphragm is attached to each inclined surface.

4. The portable urinary catheter according to claim 1, characterized in that, The width of the guide tube near the valve assembly gradually decreases from the position away from the valve assembly to the position near the valve assembly.

5. The portable urinary catheter according to claim 4, characterized in that, The end of the flow guide tube near the valve assembly is configured as a frustum or a cone.

6. The portable urinary catheter according to claim 1, characterized in that, The outer surface of the receiving tube at the end away from the urinary catheter body is provided with a first threaded structure. The switching element includes a threaded portion and a discharge portion. The threaded portion is configured as a cylindrical structure. The inner surface of the threaded portion is provided with a second threaded structure. The threaded portion is sleeved on the outer side of the receiving tube at the end away from the urinary catheter body, and the second threaded structure is threadedly connected to the first threaded structure. The discharge portion is connected to one end of the threaded portion, and the discharge portion has a discharge outlet in the middle. One end of the guide tube is connected to the middle of the discharge portion, and the discharge outlet communicates with the interior of the guide tube.

7. The portable urinary catheter according to claim 1, characterized in that, It also includes a protective shell, which is connected to the outer surface of the receiving tube and is at least partially bent, extending along a direction close to the urinary catheter body.

8. The portable urinary catheter according to claim 1, characterized in that, The receiving tube includes an integrally connected first tube section and a second tube section. The end of the first tube section away from the second tube section is connected to the urinary catheter body. A sealed cavity is opened inside the second tube section, and the insertion port is opened at the end of the second tube section away from the first tube section. The width of the second tube section is greater than the width of the urinary catheter body, and the width of the first tube section gradually decreases from the end near the second tube section to the end near the urinary catheter body.

9. The portable urinary catheter according to any one of claims 1-8, characterized in that, It also includes an air bag and a trachea, the trachea being connected to the outside of the urinary catheter body, the air bag being disposed at the end of the urinary catheter body away from the receiving tube, and the trachea communicating with the air bag.

10. The portable urinary catheter according to claim 9, characterized in that, It also includes an air delivery cylinder, which is connected to the end of the air tube away from the air bag, and the air delivery cylinder is fixedly connected to the receiving pipe.

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