Urethral catheter for men

Abstract

The utility model provides a male urethral catheter which comprises a urethral catheter body, an umbrella-shaped anti-falling piece, a traction guide wire and a urethral catheterization valve, a urethral catheterization channel is arranged in the urethral catheter body in the length direction of the urethral catheter body in a penetrating mode, a guide wire channel is formed in the side wall of the urethral catheter body, and the guide wire channel is communicated with the urethral catheterization channel; a guide wire abutting end is arranged at the top of the umbrella-shaped anti-falling part, a guide wire abutting cavity is formed in the umbrella-shaped anti-falling part, the open end of the guide wire abutting cavity is fixedly connected with one end of the catheter body, a urine inlet is formed in the side wall of the umbrella-shaped anti-falling part, and the guide wire abutting cavity, the catheter channel and the urine inlet are communicated; one end of the traction guide wire sequentially penetrates through the guide wire channel and the urinary catheterization channel and is located in the guide wire abutting cavity; the urethral catheterization valve is arranged at the other end of the urethral catheter body, the outer diameter of the urethral catheterization valve is larger than that of the urethral catheter body, and the urethral catheter is simple in structure and convenient to operate.

Description

Technical Field

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

[0002] Male urinary catheters are widely used in clinical practice, mainly for patients with urethral sphincter relaxation, urinary system injury, or prostate disease, to achieve urinary control and emptying functions with the help of the device. However, existing catheters are relatively long, with a significant portion protruding outside the body, and usually require the patient to wear a urine bag, causing inconvenience; the catheter's adhesion to the urethral wall is also unstable, easily leading to urinary leakage.

[0003] In other words, how to provide a male urinary catheter that is simple in structure and easy to operate, and can be fully inserted into the male urethra to achieve controllable urination, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of the above-mentioned problems, the present invention aims to provide a male urinary catheter that solves at least one of the above-mentioned technical problems.

[0005] This utility model provides a male urinary catheter, which includes:

[0006] The catheter body has a catheter channel extending through it along its length, and a guide wire channel is provided on the side wall of the catheter body, which is connected to the catheter channel.

[0007] An umbrella-shaped anti-detachment device has a guide wire contact end at the top and a guide wire holding cavity inside. The open end of the guide wire holding cavity is fixedly connected to one end of the main body of the urinary catheter. A urine inlet is provided on the side wall of the umbrella-shaped anti-detachment device.

[0008] A guide wire, one end of which passes sequentially through the guide wire channel and the urinary catheter channel and is located within the guide wire holding cavity;

[0009] A urinary catheter valve is disposed at the other end of the urinary catheter body, and the outer diameter of the urinary catheter valve is larger than the outer diameter of the urinary catheter body;

[0010] The umbrella-shaped anti-detachment component is made of elastic material, and the guide wire abutting cavity, the urinary catheter channel, and the urinary inlet are connected.

[0011] Preferably, the outer diameter of the umbrella-shaped anti-detachment component in its natural state is larger than the outer diameter of the catheter body, and the outer diameter of the umbrella-shaped anti-detachment component in its deformed state is equivalent to the outer diameter of the catheter body.

[0012] Preferably, the direction in which the guidewire channel extends outward from the main body of the catheter is arranged at an acute angle to the direction of urination of the catheter channel.

[0013] Preferably, the urinary catheter valve comprises:

[0014] A first elastic valve body, one end of which is connected to the other end of the catheter body, is provided with a urination channel and two interconnected spherical cavities. The two spherical cavities are respectively connected to the urination channel and the catheter channel and are located between the urination channel and the catheter channel.

[0015] A first sealing ball is movably disposed within the two spherical cavities, and the outer diameter of the first sealing ball is adapted to the inner diameter of the spherical cavity away from the main body of the catheter.

[0016] The inner diameter of the spherical cavity near the main body of the catheter is larger than the inner diameter of the spherical cavity away from the main body of the catheter, and the inner diameter of the spherical cavity away from the main body of the catheter is larger than the inner diameter of the urination channel.

[0017] Preferably, a plurality of first grooves are provided at circumferential intervals at the intersection of the inner sidewalls of the two spherical cavities.

[0018] Preferably, the first elastic valve body, the catheter body, and the umbrella-shaped anti-detachment component are integrally formed and are all made of elastic materials that meet biosafety standards.

[0019] Preferably, the urinary catheter valve comprises:

[0020] The second elastic valve body is a hollow structure. One end of the second elastic valve body has a frustum structure, which is connected to the other end of the catheter body. Several second grooves are spaced apart circumferentially on the inner sidewall of the other end of the second elastic valve body.

[0021] The second sealing ball is movably disposed within the second elastic valve body.

[0022] Preferably, the urinary catheter valve comprises:

[0023] The third elastic valve body has an opening and closing channel. One end of the third elastic valve body is connected to the other end of the catheter body. The opening and closing channel is connected to the catheter channel. The other end of the third elastic valve body is provided with a urination port.

[0024] The fishbone valve core and the third sealing ball are provided. The fishbone valve core is made of elastic material, and the third sealing ball is fixed to one end of the fishbone valve core. The fishbone valve core and the third sealing ball are movably disposed in the opening and closing channel. The outer diameter of the third sealing ball is larger than the inner diameter of the urination port.

[0025] Preferably, the fishbone valve core comprises:

[0026] A bone-like main body, the bone-like main body having a columnar structure, one end of the bone-like main body being fixedly connected to the third sealing ball;

[0027] A plurality of support rods are spaced apart and distributed around the bone-like body and lean towards one end of the fishbone valve core. Each support rod is arranged at an acute angle to the axial direction of the bone-like body, which is from the other end of the bone-like body to one end of the bone-like body.

[0028] The bone-like main body, the several support rods, and the third sealing ball are integrally formed.

[0029] Preferably, the maximum outer diameter of the fishbone valve core is adapted to the inner diameter of the opening and closing channel.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] Specifically, this utility model provides a male urinary catheter, including a catheter body, an umbrella-shaped anti-dislodgement component, a guide wire, and a urinary valve. A urinary channel is provided through the catheter body along its length. A guide wire channel is formed on the side wall of the catheter body, and the guide wire channel is connected to the urinary channel. The top of the umbrella-shaped anti-dislodgement component has a guide wire contact end, and the interior of the umbrella-shaped anti-dislodgement component has a guide wire holding cavity. The opening end of the guide wire holding cavity is fixedly connected to one end of the catheter body. A urine inlet is formed on the side wall of the umbrella-shaped anti-dislodgement component. The guide wire holding cavity, the urinary channel, and the urine inlet are connected. One end of the guide wire passes sequentially through the guide wire channel and the urinary channel and is located within the guide wire holding cavity, so as to guide the guide wire through the guide wire holding cavity. The guide wire inside the cavity abuts against the guide wire contact end to stretch and deform the umbrella-shaped anti-dislodgement component. Then, the catheter can be directly pushed into the male urethra through the guide wire. When the umbrella-shaped anti-dislodgement component reaches the bladder opening, the guide wire is released and removed. At this time, the entire catheter is embedded in the male urethra. The catheter valve is set at the other end of the catheter body. The outer diameter of the catheter valve is set to be larger than the outer diameter of the catheter body. The outer diameter of the catheter valve is adapted to the expansion size of the male urethra so that it can fit tightly against the urethral wall, play a sealing and anchoring role, and prevent urine leakage. The opening and closing of the catheter channel in the catheter body can be controlled by manually squeezing the catheter valve hidden in the male penis to realize urination and urinary control. This application has a simple structure and is easy to operate.

[0032] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments 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.

[0034] Figure 1 A perspective view of a first structure of a urinary catheter valve provided in an embodiment of this application;

[0035] Figure 2 A cross-sectional view of a first structure of the urinary catheter valve provided in an embodiment of this application;

[0036] Figure 3 A cross-sectional view of the tensile deformation state of the umbrella-shaped anti-detachment component provided in the embodiment of this application;

[0037] Figure 4 A schematic diagram of the first structure of the urinary catheter valve provided in the embodiment of this application during urination;

[0038] Figure 5 A cross-sectional view of the first resilient valve body provided in an embodiment of this application;

[0039] Figure 6 A cross-sectional view of a second structure of the urinary catheter valve provided in an embodiment of this application;

[0040] Figure 7 A perspective view of a second structure of the urinary catheter valve provided in the embodiments of this application;

[0041] Figure 8 A schematic diagram of a third structure of the urinary catheter valve provided in the embodiments of this application;

[0042] Figure 9 A schematic diagram of the third type of pressure deformation of the catheter valve provided in the embodiment of this application;

[0043] Figure 10 A perspective view of the fishbone valve core in the third structure of the catheter valve provided in the embodiments of this application.

[0044] Figure label:

[0045] 1. Catheter body; 101. Catheter channel; 102. Guide wire channel;

[0046] 2. Umbrella-shaped anti-detachment component; 201. Guide wire contact end; 202. Guide wire holding cavity; 203. Urine inlet;

[0047] 3. Pulling the guide wire;

[0048] 4. Urinary catheter valve; 401. First elastic valve body; 4011. Urination channel; 4012. Spherical cavity; 4013. First groove; 402. First sealing ball; 411. Second elastic valve body; 4111. Second groove; 412. Second sealing ball; 421. Third elastic valve body; 4211. Opening and closing channel; 4212. Urination port; 422. Fishbone valve core; 4221. Bone-shaped body; 4222. Support rod; 423. Third sealing ball. Detailed Implementation

[0049] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model; wherein the keyword "and / or" involved in this embodiment indicates two situations, and or. In other words, A and / or B mentioned in the embodiments of this specification indicates two situations, A and B, and A or B, describing three states of A and B. For example, A and / or B means: only A is included and not B; only B is included and not A; and A and B are included.

[0050] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0051] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0052] Example 1

[0053] Please see Figure 1-10Specifically, in this embodiment of the male urinary catheter, the male urinary catheter provided in this application specifically includes a catheter body 1, an umbrella-shaped anti-dislodgement component 2, a guide wire 3, and a catheter valve 4. A catheter channel 101 is provided through the catheter body 1 along its length. A guide wire channel 102 is provided on the side wall of the catheter body 1, and the guide wire channel 102 is connected to the catheter channel 101. The top of the umbrella-shaped anti-dislodgement component 2 has a guide wire contact end 201, and the interior of the umbrella-shaped anti-dislodgement component 2 has a guide wire contact end 201. The guidewire supports the cavity 202, and the open end of the guidewire supports the cavity 202 is fixedly connected to one end of the catheter body 1. The umbrella-shaped anti-dislodgement component 2 has a urine inlet 203 on its side wall. The guidewire supports the cavity 202, the catheter channel 101 and the urine inlet 203 are connected. One end of the traction guidewire 3 passes through the guidewire channel 102 and the catheter channel 101 in sequence and is located in the guidewire supports the cavity 202. The catheter valve 4 is set at the other end of the catheter body 1, and the outer diameter of the catheter valve 4 is larger than the outer diameter of the catheter body 1.

[0054] Specifically, this utility model embodiment provides a male urinary catheter, including a catheter body 1, an umbrella-shaped anti-dislodgement component 2, a guide wire 3, and a catheter valve 4. A catheter channel 101 is provided through the catheter body 1 along its length. A guide wire channel 102 is provided on the side wall of the catheter body 1, and the guide wire channel 102 is connected to the catheter channel 101. The umbrella-shaped anti-dislodgement component 2 is made of elastic material. The top of the umbrella-shaped anti-dislodgement component 2 has a guide wire contact end 201, and the interior of the umbrella-shaped anti-dislodgement component 2 has a guide wire holding cavity 202. The opening end of the guide wire holding cavity 202 is fixedly connected to one end of the catheter body 1. A urine inlet 203 is provided on the side wall of the umbrella-shaped anti-dislodgement component 2. The guide wire holding cavity 202, the catheter channel 101, and the urine inlet 203 are connected. One end of the guide wire 3 passes sequentially through the guide wire channel 102 and the catheter channel 101. 1. The catheter is located within the guidewire holding cavity 202. By pressing the guidewire 3 within the guidewire holding cavity 202 against the guidewire contact end 201, the umbrella-shaped anti-dislodgement component 2 is stretched and deformed. The catheter can then be directly pushed into the male urethra through the guidewire 3. When the umbrella-shaped anti-dislodgement component 2 reaches the bladder opening, the guidewire 3 is released and removed. At this time, the entire catheter is embedded within the male urethra. The catheter valve 4 is located at the other end of the catheter body 1. The outer diameter of the catheter valve 4 is larger than the outer diameter of the catheter body 1. The outer diameter of the catheter valve 4 is adapted to the expansion size of the male urethra. The catheter valve 4 fits tightly against the urethral wall, providing a sealing and anchoring function to prevent urine leakage. The opening and closing of the catheter channel 101 within the catheter body is controlled by manually squeezing the catheter valve 4 hidden in the male penis to achieve urination and urine control. This application has a simple structure and is easy to operate.

[0055] In one possible implementation, the outer diameter of the umbrella-shaped anti-detachment component 2 in its natural state is larger than the outer diameter of the catheter body 1, and the outer diameter of the umbrella-shaped anti-detachment component 2 in its deformed state is equivalent to the outer diameter of the catheter body 1.

[0056] In one possible implementation, the umbrella-shaped anti-detachment component 2 is formed by a plurality of arc-shaped umbrella petals circumferentially connected. The circumferential area between the plurality of arc-shaped umbrella petals forms a guide wire abutment cavity 202. One end of the plurality of arc-shaped umbrella petals is connected to form a guide wire abutment end 201, and the other end of the plurality of arc-shaped umbrella petals is connected to form an opening end of the guide wire abutment cavity 202. A urine inlet 203 is provided between every two arc-shaped umbrella petals, and the urine inlet 203 is connected to the guide wire abutment cavity 202.

[0057] In practical use, first, in the natural state, insert the guide wire 3 sequentially from the guide wire channel 102 and the urinary catheter channel 101 into the guide wire holding cavity 202 and abut against the guide wire contact end 201 to cause the umbrella-shaped anti-dislodgement component 2 to extend and deform. Specifically, as follows... Figure 3 As shown, the outer diameter of the deformed umbrella-shaped anti-dislodgement member 2 gradually decreases until it is the same as the outer diameter of the catheter body 1. At this point, one end of the umbrella-shaped anti-dislodgement member 2 is inserted from the male urethral opening to the bladder opening, and the umbrella-shaped anti-dislodgement member 2 is released so that it returns to its natural state and locks into place at the bladder opening, thus anchoring the position of the catheter of this application. The catheter inserted into the urethra is entirely embedded in the male patient's urethra, and the catheter valve 4 is located inside the male penis. The patient can control urination by squeezing the catheter valve 4 inside the penis.

[0058] In one possible implementation, the guidewire channel 102 extends outward from the catheter body 1 at an acute angle to the urination direction of the guidewire channel 101. This acute angle can be less than 15 degrees, so as to minimize the bending of the guidewire 3 during traction, so that the guidewire 3 can push the catheter into the urethra.

[0059] In one possible implementation, such as Figure 1-2 As shown, the urinary catheter valve 4 involved in this application includes a first elastic valve body 401 and a first sealing ball 402. One end of the first elastic valve body 401 is connected to the other end of the urinary catheter body 1. A cross-sectional view of the first elastic valve body 401 is shown in the attached figure. Figure 5The first elastic valve body 401 is provided with a urination channel 4011 and two interconnected spherical cavities 4012. The two spherical cavities 4012 are respectively connected to the urination channel 4011 and the catheter channel 101 and are located between the urination channel 4011 and the catheter channel 101. The first sealing ball 402 is movably disposed in the two spherical cavities 4012. The outer diameter of the first sealing ball 402 is adapted to the inner diameter of the spherical cavity 4012 away from the catheter body 1. The inner diameter of the spherical cavity 4012 closer to the catheter body 1 is larger than the inner diameter of the spherical cavity 4012 away from the catheter body 1, and the inner diameter of the spherical cavity 4012 away from the catheter body 1 is larger than the inner diameter of the urination channel 4011.

[0060] In one possible implementation, the first elastic valve body 401, the catheter body 1, and the umbrella-shaped anti-dislodgement component 2 are integrally formed and are all made of elastic materials that meet biosafety standards.

[0061] Those skilled in the art will understand that, as a first structure of the catheter valve 4, please refer to Figure 1-2 This application uses two spherical cavities 4012 with different diameters, whose cavity areas overlap. During urination control, the first sealing ball 402 is located in the smaller-diameter spherical cavity 4012, which is fitted to the size of the first sealing ball 402 to precisely block the urination channel 4011, thus achieving urination control. When urination is needed, such as... Figure 4 As shown, the first sealing ball 402 can be squeezed into the large-diameter spherical cavity 4012 to achieve urination.

[0062] In one possible implementation, a plurality of first grooves 4013 are provided at the circumferential intervals at the intersection of the inner sidewalls of the two spherical cavities 4012.

[0063] This is because the diameter at the intersection of the inner walls of the two spherical cavities 4012 is smaller than the outer diameter of the two spherical cavities 4012. Therefore, it is possible that the first sealing ball 402 is located at the intersection of the inner walls of the two spherical cavities 4012 under the pressure of urine, preventing urine from being discharged. In this case, by horizontally opening multiple first grooves 4013 at this location, even if the first sealing ball 402 is located at the intersection of the inner walls of the two spherical cavities 4012 under the pressure of urine, urine can still flow out through the first grooves 4013, thus allowing for smooth urination.

[0064] In one possible implementation, the urinary catheter valve 4 involved in this application includes a second elastic valve body 411 and a second sealing ball 412. The second elastic valve body 411 has a hollow structure, and one end of the second elastic valve body 411 has a frustum structure. The frustum structure is connected to the other end of the urinary catheter body 1. A plurality of second grooves 4111 are spaced apart circumferentially on the inner sidewall of the other end of the second elastic valve body 411. The second sealing ball 412 is movably disposed in the second elastic valve body 411.

[0065] Those skilled in the art will understand that, as a second structure of the catheter valve 4, please refer to [reference needed]. Figure 6-7 This application incorporates a sealing ball within the second elastic valve body 411. By compressing the second elastic valve body 411, it deforms, resulting in an elliptical cross-section. This creates a gap between the sealing ball 412 and the side wall of the second elastic valve body 411, allowing urine to be expelled through this gap. Furthermore, several second grooves 4111 are spaced circumferentially on the inner side wall of the urine discharge end of the second elastic valve body 411. This prevents the discharge port of the second elastic valve body 411 from tightly adhering to the side wall of the sealing ball 412 when the second elastic valve body 411 is compressed, facilitating urine discharge.

[0066] In one possible implementation, please refer to the appendix. Figure 8-9 The urinary catheter valve 4 involved in this application includes a third elastic valve body 421, a fishbone valve core 422, and a third sealing ball 423. The third elastic valve body 421 has an opening and closing channel 4211. One end of the third elastic valve body 421 is connected to the other end of the urinary catheter body 1. The opening and closing channel 4211 is connected to the urinary catheter channel 101. The other end of the third elastic valve body 421 is provided with a urination port 4212. The fishbone valve core 422 is made of elastic material. The third sealing ball 423 is fixed to one end of the fishbone valve core 422. The fishbone valve core 422 and the third sealing ball 423 are movably disposed in the opening and closing channel 4211. The outer diameter of the third sealing ball 423 is larger than the inner diameter of the urination port 4212.

[0067] In one possible implementation, please refer to the appendix. Figure 10 The fishbone valve core 422 includes a bone-shaped body 4221 and several support rods 4222. The bone-shaped body 4221 has a columnar structure, and one end of the bone-shaped body 4221 is fixedly connected to the third sealing ball 423. Several support rods 4222 are spaced around the bone-shaped body 4221 and turn towards one end of the fishbone valve core 4222. Each support rod 4222 is arranged at an acute angle to the axial direction of the bone-shaped body 4221, and the axial direction is from the other end of the bone-shaped body 4221 to one end of the bone-shaped body 4221. The bone-shaped body 4221, several support rods 4222 and the third sealing ball 423 are integrally formed.

[0068] Those skilled in the art will understand that, as a third structure of the catheter valve 4, such as Figure 8-9 As shown, this application incorporates a fishbone valve core 422 within the third elastic valve body 421. This fishbone valve core 422 is elastic and undergoes plastic deformation under external pressure, returning to its original shape upon loss of pressure. Utilizing the deformation principle of a parallelogram, the fishbone valve core 422 converts radial pressure into axial movement. A sealing ball fixed to the end of the fishbone valve core 422 adheres to the urination port 4212 at the other end of the third elastic valve body 421, providing a seal. When pressure is applied to the penis, the third elastic valve body 421 deforms, simultaneously compressing the fishbone valve core 422 and causing it to move away from the urination port 4212. This, in turn, causes the third sealing ball 423 to leave the urination port 4212 of the third elastic valve body 421, thus enabling urination. After the third elastic valve body 421 loses external force, all components return to their natural state and the urination valve 4 closes again under gravity or urine pressure.

[0069] In one possible implementation, the maximum outer diameter of the fishbone valve core 422 is adapted to the inner diameter of the opening and closing channel 4211, so that in the natural state, the fishbone valve core 422 is located in the middle position of the opening and closing channel 4211, and even when the patient is lying down, the fishbone valve core 422 and the sealing ball connected to the fishbone valve core 422 can still be kept in the middle position of the opening and closing channel 4211.

[0070] It should be further noted that the surfaces of the first sealing ball 402, the second sealing ball 412, and the third sealing ball 423 involved in this application are smooth, and their surfaces can be made of materials that meet biosafety standards, such as polytetrafluoroethylene, quartz glass, polyethylene, or stainless steel. The main body of the sealing ball can be made of silicone, latex rubber, or elastic materials such as TPU or TPE, so as to ensure safety while reducing the weight of the sealing ball and improving the comfort of use.

[0071] Based on three different catheter valve structures, the catheter of this application has three structures. As the first structure of the catheter of this application, the catheter body 1, the umbrella-shaped anti-dislodgement component 2, and the first elastic valve body 401 are integrally molded and all made of a biocompatible elastic material, specifically silicone, to simplify the overall structure and improve user comfort. As the second structure of the catheter of this application, the catheter body 1, the umbrella-shaped anti-dislodgement component 2, and the second elastic valve body 411 are integrally molded and all made of a biocompatible elastic material, specifically silicone, to simplify the overall structure and improve user comfort. As the third structure of the catheter of this application, the catheter body 1, the umbrella-shaped anti-dislodgement component 2, and the third elastic valve body 421 are integrally molded and all made of a biocompatible elastic material, specifically silicone, to simplify the overall structure and improve user comfort.

[0072] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0073] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A male urinary catheter, characterized in that, The male urinary catheter includes: The catheter body has a catheter channel extending through it along its length, and a guide wire channel is provided on the side wall of the catheter body, which is connected to the catheter channel. An umbrella-shaped anti-detachment device has a guide wire contact end at the top and a guide wire holding cavity inside. The open end of the guide wire holding cavity is fixedly connected to one end of the main body of the urinary catheter. A urine inlet is provided on the side wall of the umbrella-shaped anti-detachment device. A guide wire, one end of which passes sequentially through the guide wire channel and the urinary catheter channel and is located within the guide wire holding cavity; A urinary catheter valve is disposed at the other end of the urinary catheter body, and the outer diameter of the urinary catheter valve is larger than the outer diameter of the urinary catheter body; The umbrella-shaped anti-detachment component is made of elastic material, and the guide wire abutting cavity, the urinary catheter channel, and the urinary inlet are connected.

2. The male urinary catheter as described in claim 1, characterized in that: The outer diameter of the umbrella-shaped anti-detachment component in its natural state is larger than the outer diameter of the main body of the catheter, while the outer diameter of the umbrella-shaped anti-detachment component in its deformed state is the same as the outer diameter of the main body of the catheter.

3. The male urinary catheter as described in claim 1, characterized in that: The guidewire channel extends outward from the main body of the catheter at an acute angle to the direction of urination.

4. The male urinary catheter as described in claim 1, characterized in that, The urinary catheter valve includes: A first elastic valve body, one end of which is connected to the other end of the catheter body, is provided with a urination channel and two interconnected spherical cavities. The two spherical cavities are respectively connected to the urination channel and the catheter channel and are located between the urination channel and the catheter channel. A first sealing ball is movably disposed within the two spherical cavities, and the outer diameter of the first sealing ball is adapted to the inner diameter of the spherical cavity away from the main body of the catheter. The inner diameter of the spherical cavity near the main body of the catheter is greater than the inner diameter of the spherical cavity away from the main body of the catheter, and the inner diameter of the spherical cavity away from the main body of the catheter is greater than the inner diameter of the urination channel.

5. The male urinary catheter as described in claim 4, characterized in that: Several first grooves are provided at circumferential intervals at the intersection of the inner sidewalls of the two spherical cavities.

6. The male urinary catheter as described in claim 5, characterized in that: The first elastic valve body, the catheter body, and the umbrella-shaped anti-detachment component are integrally formed and are all made of elastic materials that meet biosafety standards.

7. The male urinary catheter as described in claim 1, characterized in that, The urinary catheter valve includes: The second elastic valve body is a hollow structure. One end of the second elastic valve body has a frustum structure, which is connected to the other end of the catheter body. Several second grooves are spaced apart circumferentially on the inner sidewall of the other end of the second elastic valve body. The second sealing ball is movably disposed within the second elastic valve body.

8. The male urinary catheter as described in claim 1, characterized in that, The urinary catheter valve includes: The third elastic valve body has an opening and closing channel. One end of the third elastic valve body is connected to the other end of the catheter body. The opening and closing channel is connected to the catheter channel. The other end of the third elastic valve body is provided with a urination port. The fishbone valve core and the third sealing ball are provided. The fishbone valve core is made of elastic material, and the third sealing ball is fixed to one end of the fishbone valve core. The fishbone valve core and the third sealing ball are movably disposed in the opening and closing channel. The outer diameter of the third sealing ball is larger than the inner diameter of the urination port.

9. The male urinary catheter as described in claim 8, characterized in that, The fishbone valve core includes: A bone-like main body, the bone-like main body having a columnar structure, one end of the bone-like main body being fixedly connected to the third sealing ball; A plurality of support rods are spaced apart and distributed around the bone-like body and lean towards one end of the fishbone valve core. Each support rod is arranged at an acute angle to the axial direction of the bone-like body, which is from the other end of the bone-like body to one end of the bone-like body. The bone-like main body, the several support rods, and the third sealing ball are integrally formed.

10. The male urinary catheter as described in claim 9, characterized in that: The maximum outer diameter of the fishbone valve core is adapted to the inner diameter of the opening and closing channel.

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