A visual urinary catheter kit

Abstract

The present invention relates to the technical field of medical equipment, and specifically provides a visual urinary catheter kit, comprising: a urinary catheter body, a liquid storage bag, a camera and a steering mechanism, wherein a first liquid outlet is provided on a side wall of the urinary catheter body, and a first branch pipe is arranged inside the side wall of the urinary catheter body, the first branch pipe is connected with the liquid outlet bag and the first liquid outlet, the first branch pipe can transport a lubricating liquid, and a bellows is arranged inside the urinary catheter body, and the hardness of the urinary catheter body can be enhanced by the arrangement of the bellows so that the urinary catheter body can be introduced more accurately, and a switch assembly is also arranged so that during the introduction of the urinary catheter body, the lubricating liquid in the first branch pipe can lubricate the urethra to reduce damage to the urethra, and when the front end of the urinary catheter body enters the bladder, the first liquid outlet is closed so that the liquid storage bag expands to fix the urinary catheter body and prevent the urinary catheter body from falling off.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a visualized urinary catheter kit. Background Art

[0002] Visual catheter is an innovative medical device that combines image guidance technology to help medical personnel view the internal structure of the urethra and bladder in real time during the catheterization process to ensure that the catheter is inserted correctly and safely. Compared with traditional catheters, visual catheters use built-in cameras or external imaging devices to improve the accuracy of insertion and reduce the incidence of complications, especially in complex cases or patients with abnormal anatomical structures.

[0003] For example, Chinese patent CN214970943U discloses a visual urinary catheter, which includes a soft tube body, which defines a longitudinally extending urinary catheter cavity, a water bag is provided on the distal side of the soft tube body, and a urine drainage port is also provided on the distal side of the soft tube body. A water injection cavity extending along the longitudinal extension direction of the tube wall is formed in the tube wall of the tube body, a water injection joint and a water injection pipe are provided at the proximal end of the water injection cavity, and the distal end of the water injection cavity is connected to the water bag. A camera assembly is connected to the visual urinary catheter, which includes a hard catheter, a connecting wire accommodated in the hard catheter, and a camera connected to the connecting wire. The distal section of the hard catheter is bent relative to the proximal section, and the hard catheter passes through the urinary catheter cavity to constrain the proximal section of the soft tube body to be bent relative to the distal section. The proximal end of the hard catheter extends out of the soft tube body and can be electrically connected to a display, thereby providing a clear visual environment during intubation.

[0004] However, in the above scheme, the soft tube body used is relatively soft in texture. Since the urethra is long and has many bends, the soft tube body is relatively soft, so the direction of the hose cannot be accurately controlled. The introduction process is more difficult, time-consuming and labor-intensive, and the friction during the introduction process is likely to cause discomfort to the patient. If it is replaced with a harder tube body, the inner wall of the urethra is easily damaged. Summary of the invention

[0005] Based on this, it is necessary to provide a visual urinary catheter kit to address the problem that the current urinary catheter is difficult to introduce and easily damages the urethra.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A visualization urinary catheter kit, comprising:

[0008] A urinary catheter body, wherein the urinary catheter body has a urinary catheter channel inside and a liquid storage bag is arranged near the front end, and when the liquid storage bag is expanded, the urinary catheter body can be fixed in the bladder;

[0009] A camera, the camera is located at the front end of the catheter body and can capture urethra images;

[0010] A steering mechanism, wherein the steering mechanism is capable of adjusting the bending angle and direction of the urinary catheter body;

[0011] A bellows, which is arranged in the urinary catheter channel and has elasticity, and can support the urinary catheter body;

[0012] a first branch pipe, the first branch pipe is arranged inside the side wall of the catheter body and is connected to the liquid storage bag, a first liquid outlet is opened on the catheter body near the lower part of the liquid storage bag, the first branch pipe is also connected to the first outlet, and the first branch pipe can transport lubricating liquid;

[0013] A switch assembly, the switch assembly can open or close the first liquid outlet, and the switch assembly is configured as follows:

[0014] When the urinary catheter body moves in the urethra, the switch assembly opens the first liquid outlet, and the lubricating liquid in the first branch tube passes through the first liquid outlet to lubricate the urethra;

[0015] When the urinary catheter body moves to the bladder, the switch assembly closes the first liquid outlet, and the lubricating liquid in the first branch pipe props up the liquid storage bag to fix the position of the urinary catheter body.

[0016] Furthermore, the switch assembly includes a rubber sleeve, the rear end of the rubber sleeve and the bellows are slidably nested in the catheter body, the rubber sleeve wraps the camera, an annular cavity is formed between two adjacent wave crests of the bellows, the first liquid outlet and the first branch are connected to the same annular cavity, and after the catheter body enters the bladder, the bellows drives the rubber sleeve to move downward to block the first liquid outlet.

[0017] Furthermore, an annular film is provided at the front end of the rubber sleeve, the inner diameter of the annular film is connected to the front end of the rubber sleeve, and the outer diameter of the annular film is connected to the front end of the catheter body.

[0018] Furthermore, the annular film is elastic.

[0019] Furthermore, there are a plurality of first liquid outlets, which are distributed along the circumference of the catheter body, and a plurality of urinary catheter grooves are provided on the side wall of the rubber sleeve, which penetrate the rubber sleeve.

[0020] Furthermore, a first one-way valve is provided in the first branch pipe, and the first one-way valve can limit the backflow of the lubricating liquid in the first branch pipe.

[0021] Furthermore, a second branch tube is arranged inside the side wall of the catheter body, a second liquid outlet is opened at the front end of the catheter body near the liquid storage bag, the second branch tube is connected to the second liquid outlet, and the second branch tube can transport the therapeutic liquid.

[0022] Furthermore, there are a plurality of second liquid outlets, and the plurality of second liquid outlets are all connected to the second branch pipe.

[0023] Furthermore, a second one-way valve is provided on the second branch pipe, and the second one-way valve can limit the backflow of the therapeutic liquid in the second branch pipe.

[0024] Furthermore, the steering mechanism includes an adjustment handle and a control line, the adjustment handle is arranged at the rear end of the catheter body, the control line passes through the corrugated tube and is connected to the camera, and the handle is connected to the control line to adjust the bending angle and direction of the camera.

[0025] The beneficial effects of the present invention are:

[0026] The present invention can enhance the hardness of the catheter body by setting the bellows so that the catheter body can be introduced more accurately. At the same time, the first branch tube and the switch assembly are provided so that during the introduction of the catheter body, the lubricating liquid in the first branch tube can lubricate the urethra to reduce damage to the urethra. When the front end of the catheter body enters the bladder, the first liquid outlet is closed so that the liquid storage bag expands to fix the catheter body and prevent the catheter body from falling off.

[0027] The present invention provides a rubber sleeve and an annular cavity so that during the process of introducing the catheter body, the annular cavity is connected to the first liquid outlet and the first branch tube. When the catheter body reaches the bladder, two steps are required, namely, fixing the catheter body and evacuating the camera. It is only necessary to pull the rubber sleeve while evacuating the camera so as to expand the liquid storage bag to fix the catheter body. Two steps are completed in one operation, which simplifies the process.

[0028] The present invention provides a plurality of first liquid outlets and a first one-way valve in the first branch pipe to prevent the first branch pipe from being blocked or flowing back when conveying lubricating liquid medicine, thereby ensuring that the lubricating liquid medicine can fully lubricate the urethra.

[0029] The present invention sets a second branch tube, which is provided with a plurality of second liquid outlets and a second one-way valve inside the second branch tube, so as to prevent the second branch tube from being blocked or backflowing when transporting therapeutic liquid, thereby ensuring that the therapeutic liquid can enter the bladder to treat the patient's bladder and urinary system diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of a visual urinary catheter kit provided in a first embodiment of the present invention;

[0031] Figure 2 A top view of a visualization urinary catheter kit provided by a first embodiment of the present invention;

[0032] Figure 3 for Figure 2 A cross-sectional view along AA during the introduction process of the visualization urinary catheter kit provided in the first embodiment;

[0033] Figure 4 for Figure 3 A partial enlarged view of part X of the visualization urinary catheter kit provided in the first embodiment;

[0034] Figure 5 for Figure 2 A cross-sectional view along AA when the rubber sleeve is pulled on the visualized urinary catheter kit provided in the first embodiment;

[0035] Figure 6 for Figure 5 A partial enlarged view of the Y portion of the visualization urinary catheter kit provided in the first embodiment;

[0036] Figure 7 for Figure 2 A cross-sectional view of the visualization urinary catheter kit along BB provided in the first embodiment;

[0037] Figure 8 for Figure 7 A partial enlarged view of the Z portion of the visualization urinary catheter kit provided in the first embodiment;

[0038] Fig. 9 An enlarged view of the position of the rubber sleeve when the visual urinary catheter kit provided by the second embodiment of the present invention is introduced;

[0039] Fig.10 This is an enlarged view of the rubber sleeve being pulled when the visualized urinary catheter kit provided by the second embodiment of the present invention is introduced.

[0040] in:

[0041] 100, urinary catheter body; 110, urinary catheter channel; 111, urinary catheter groove; 120, liquid storage bag; 130, first liquid outlet; 140, bellows; 141, annular cavity; 150, camera; 160, rubber sleeve; 161, through groove; 170, annular film;

[0042] 200, first branch pipe; 210, opening; 220, first one-way valve;

[0043] 300, second branch pipe; 310, second liquid outlet; 320, second one-way valve;

[0044] 400, steering mechanism; 410, adjustment handle; 420, control line. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and cannot limit the present invention.

[0046] The serial numbers assigned to the components herein, such as "first", "second", etc., can only distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] Refer to the following Figure 1-Figure 8 A first embodiment of a visualization urinary catheter kit provided by the present invention is described below.

[0049] A visualized urinary catheter kit is capable of viewing the internal structure of the urethra and bladder in real time, comprising a urinary catheter body 100, wherein the urinary catheter body 100 has a urinary catheterization channel 110 inside, and a liquid storage bag 120 is arranged near the front end of the urinary catheter body 100, the liquid storage bag 120 surrounds the outer circumference of the urinary catheter body 100, and the liquid storage bag 120 is elastic. When the liquid storage bag 120 is filled with liquid, the liquid storage bag 120 expands, and when the liquid storage bag 120 is not filled with liquid, it is in a weak state. The purpose of setting the liquid storage bag 120 is that when the front end of the urinary catheter body 100 and the liquid storage bag 120 also enter the bladder, the liquid storage bag 120 expands to fix the front end of the urinary catheter body 100 in the bladder to prevent it from falling off. The front end of the catheter body 100 is provided with a camera 150, which can provide a clear image in the narrow urethra, so that the doctor can observe the condition of the urethra in real time. The setting of the camera 150 can improve the accuracy of catheterization, reduce the risk of blind insertion, and avoid damaging the patient's urethra. The catheter body 100 is also provided with a steering mechanism 400 that can adjust the bending angle and direction of the catheter body 100 in the urethra. Since the urethra is long and has many bends, the catheter body 100 with a soft texture is provided with an elastic bellows 140. The bellows 140 can support the catheter body 100 so as to appropriately increase the hardness of the catheter body 100, so that the steering mechanism 400 can be more accurately turned to adapt to the long urethra with many bends. The catheter body 100 with the elastic bellows 140 can be more accurately introduced into the urethra with the camera 150, so that the doctor's operation time is reduced and the efficiency is improved.

[0050] It should be noted that the camera 150 of the present invention is a miniature camera 150, and the specific size can be adjusted according to needs. These miniature cameras 150 are usually high-definition (HD) or full high-definition (FHD) level, and can provide clear images under limited light conditions to help doctors observe the conditions of the urethra and bladder in real time. At the same time, since there is usually insufficient light inside the catheter body 100, the miniature camera 150 is equipped with an LED or fiber optic light source, which can illuminate the internal environment of the catheter body 100 to ensure that sufficient lighting is obtained for imaging. The miniature camera 150 usually uses digital signal transmission technology to transmit the image to an external monitor through a cable set in the catheter body 100, so that the doctor can view the urethra and bladder in real time.

[0051] A first branch tube 200 is further provided on one side of the catheter body 100. The first branch tube 200 is specifically located inside the side wall of the catheter body 100. The front end of the first branch tube 200 is connected to the liquid storage bag 120. The catheter body 100 is provided with a first liquid outlet 130 near the rear end of the liquid storage bag 120. The first branch tube 200 is also connected to the first liquid outlet 130. The first branch tube 200 can transport lubricating liquid. The lubricating liquid can enter the liquid storage bag 120 through the first branch tube 200 and can also enter the liquid storage bag 120 through the first liquid outlet 130. It is inserted into the urethra to lubricate the urethra. It should be noted that the catheter body 100 in the prior art is coated with a lubricating layer before being inserted into the urethra. However, the lubricating layer gradually becomes thinner as the catheter body 100 is gradually inserted until it can no longer play a lubricating role. Therefore, in this embodiment, a first liquid outlet 130 is opened at the lower end of the liquid storage bag 120, so that during the insertion of the catheter body 100, the lubricating liquid is continuously discharged from the first liquid outlet 130 into the urethra, so that the surface of the catheter body 100 is always provided with a lubricating layer, thereby reducing the occurrence of the above situation.

[0052] A switch assembly is provided between the first liquid outlet 130 and the first branch pipe 200. The switch assembly can open or close the first liquid outlet 130. The switch assembly in this embodiment is specifically configured as follows:

[0053] When the catheter body 100 is inserted into the urethra, the switch assembly opens the first liquid outlet 130, so that the first liquid outlet 130 can flow out the lubricating liquid to lubricate the urethra and avoid damaging the urethra; when the front end of the catheter body 100 is inserted into the bladder, it is no longer necessary to lubricate the urethra, and the switch assembly closes the first liquid outlet 130. Since the first liquid outlet 130 is closed, the lubricating liquid in the first branch tube 200 enters the liquid storage bag 120, and the lubricating liquid props up the liquid storage bag 120, so that the front end of the catheter body 100 is fixed in the urethra to prevent it from falling off. At this time, the camera 150, the bellows 140 and the steering mechanism 400 can be removed, and the rear end of the catheter body 100 is connected to the urine bag, thereby completing the introduction of the catheter body 100, and the urine in the bladder is discharged into the urine bag through the catheter channel 110.

[0054] The bellows 140 is provided to enhance the hardness of the catheter body 100 so that the catheter body 100 can be introduced more accurately. The first branch tube 200 and the switch assembly are provided at the same time so that during the introduction of the catheter body 100, the lubricating liquid in the first branch tube 200 can lubricate the urethra to reduce damage to the urethra. When the front end of the catheter body 100 enters the bladder, the first liquid outlet 130 is closed so that the liquid storage bag 120 expands to fix the catheter body 100 and prevent the catheter body 100 from falling off.

[0055] It should be noted that the first branch tube 200 can not only convey lubricating liquid medicine, but also add anti-inflammatory and bactericidal liquid medicine to reduce the probability of urethral infection.

[0056] Specifically, the switch assembly includes a rubber sleeve 160. The rear end of the rubber sleeve 160 is nested at the front end of the catheter body 100. The rubber sleeve 160 is an annular sleeve, and the camera 150 is wrapped by the rubber sleeve 160. The front end of the camera 150 protrudes from the rubber sleeve 160. The outer periphery of the rubber sleeve 160 abuts against the inner wall of the catheter body 100 and has a certain frictional force so that when the catheter body 100 moves in the urethra, the camera 150 does not displace relative to the catheter body 100. The side wall of the corrugated pipe 140 connected to the camera 150 is corrugated, and an annular cavity 141 is formed between the inner wall of the catheter body 100 and between two adjacent wave crests on the outer wall of the corrugated pipe 140. Moreover, the wave crests of the corrugated pipe 140 are in sliding and sealing contact with the inner wall of the catheter body 100, so that the adjacent two annular cavities 141 are not communicated. In this embodiment, the first branch tube 200 and the first liquid outlet 130 are both communicated with the same annular cavity 141, as Figure 3 and Figure 4 shown. An opening 210 is provided at the position on the side wall of the first branch tube 200 at the same height as the first liquid outlet 130. The first liquid outlet 130 and the opening 210 are both communicated with the same annular cavity 141. At this time, the rubber sleeve 160 is far from the first liquid outlet 130, so the first liquid outlet 130 is in an open state. The lubricating liquid medicine in the first branch tube 200 enters the annular cavity 141 and then is discharged into the urethra through the first liquid outlet 130.

[0057] It should be noted that at this time, the first branch tube 200 is also communicated with the liquid storage sac 120. However, the outer side of the liquid storage sac 120 is squeezed by the urethra. Only a small part of the lubricating liquid medicine is in the liquid storage sac 120, and most of the lubricating liquid medicine enters the urethra.

[0058] When the front end of the catheter body 100 and the liquid storage sac 120 both enter the bladder, at this time, it is no longer necessary to input lubricating liquid medicine into the urethra. At the same time, the camera 150, the corrugated pipe 140 and the steering mechanism 400 should also be removed. Therefore, the corrugated pipe 140 is pulled, and the corrugated pipe 140 drives the camera 150 to disengage from the catheter body 100. The camera 150 pulls the rubber sleeve 160 to move backward. When the rubber sleeve 160 moves to the position where the first liquid outlet 130 is blocked, it stops moving. After the camera 150 disengages from the rubber sleeve 160, it gradually disengages from the catheter body 100. The rubber sleeve 160 blocks the first liquid outlet 130 and also blocks the opening 210 of the first branch tube 200. The lubricating liquid medicine in the first branch tube 200 can no longer pass through the first liquid outlet 130, but can only be conveyed into the liquid storage sac 120, so that the liquid storage sac 120 expands to fix the catheter body 100.

[0059] By providing the rubber sleeve 160 and the annular cavity 141, during the introduction of the catheter body 100, the annular cavity 141 is connected to the first liquid outlet 130 and the first branch tube 200. When the catheter body 100 reaches the bladder, two steps of fixing the catheter body 100 and evacuating the camera 150 are required. It is only necessary to pull the rubber sleeve 160 while evacuating the camera 150 so that the liquid storage bag 120 expands to fix the catheter body 100. Two steps are completed in one operation, which simplifies the process.

[0060] It should be noted that the rubber sleeve 160 is made of medical rubber.

[0061] More specifically, the present embodiment is provided with an annular film 170, which can limit the distance that the rubber sleeve 160 is pulled by the camera 150. The inner diameter of the annular film 170 is fixed and sealed at the front end of the rubber sleeve 160, while the outer diameter of the annular film 170 is fixed and sealed at the front end of the catheter body 100. When the camera 150 pulls the rubber sleeve 160 to move toward the rear end, the front end of the rubber sleeve 160 pulls the annular film 170. When the annular film 170 is stretched to the limit, the rubber sleeve 160 can no longer move and is thus limited. Before being limited, the outer periphery of the rubber sleeve 160 is tightly abutted against the first liquid outlet 130 and the opening 210 of the first branch pipe 200, thereby blocking the two, thereby preventing urine from seeping out of the opening 210 of the first branch pipe 200 or the first liquid outlet 130 of the catheter body 100 during catheterization.

[0062] In a further embodiment, the annular film 170 used in the present invention is elastic. In the initial state, the annular film 170 is wrapped around the outer periphery of the rubber sleeve 160 and bulges under the elastic effect, so that the annular film 170 can be deformed to reduce damage to the urethra.

[0063] In a further embodiment, there are multiple first liquid outlets 130 on the catheter body 100, and the multiple first liquid outlets 130 are distributed along the circumference of the catheter body 100. The multiple first liquid outlets 130 do not affect the opening 210 of the first branch pipe 200, and the multiple first liquid outlets 130 are at the same height so that the multiple first liquid outlets 130 and the opening 210 of the first branch pipe 200 are connected to the same annular cavity 141, thereby reducing the situation where only one first liquid outlet 130 is blocked and the lubricating liquid cannot be transported. For example, when one or two are blocked, the other first liquid outlets 130 can still transport the lubricating liquid. Of course, it is impossible to completely avoid the situation where all the first liquid outlets 130 are blocked, but the probability of this situation occurring is very low. Compared with having only one first liquid outlet 130, providing multiple first liquid outlets 130 has greatly reduced the probability of being unable to transport the lubricating liquid.

[0064] At the same time, a plurality of urinary catheterization grooves 111 are provided on the side wall of the rubber sleeve 160, and the axes of the plurality of urinary catheterization grooves 111 are parallel to the axis of the rubber sleeve 160. The plurality of urinary catheterization grooves 111 penetrate the rubber sleeve 160. The purpose of providing the plurality of urinary catheterization grooves 111 is to prevent the situation in which the front end of the urinary catheterization channel 110 is blocked during urinary catheterization, resulting in the inability to catheterize. When the urinary catheterization channel 110 is blocked, urine can also enter the urinary catheterization channel 110 through the plurality of urinary catheterization grooves 111.

[0065] More specifically, in the embodiment of the present invention, a first one-way valve 220 is provided in the first branch tube 200. The first one-way valve 220 can only allow the lubricating liquid to enter the first branch tube 200 from the infusion end, thereby preventing the lubricating liquid that enters the first branch tube 200 from flowing back. When the catheter body 100 enters the bladder, the liquid storage bag 120 expands. At this time, there is pressure in the liquid storage bag 120. Therefore, it is necessary to prevent the lubricating liquid in the liquid storage bag 120 from being discharged. The first one-way valve 220 is provided to prevent the catheter body 100 from falling off due to the weakness of the liquid storage bag 120.

[0066] In a further embodiment, a second branch tube 300 is further provided inside the side wall of the catheter body 100, and a second liquid outlet 310 is opened on the catheter branch tube near the front end of the liquid storage bag 120, and the second branch tube 300 is connected to the second liquid outlet 310. The second branch tube 300 can transport therapeutic liquid medicine, which can treat diseases of the bladder and urinary system. The therapeutic liquid medicine is directly transported into the bladder through the second branch tube 300 so that the medicine works at a high concentration in the bladder, which can more effectively treat bladder diseases and avoid dilution of the medicine after being absorbed by the whole body system. At the same time, because the medicine can directly act on the bladder, it usually does not produce systemic side effects, especially in the case of long-term medication.

[0067] Specifically, there are multiple second liquid outlets 310 in this embodiment. The second liquid outlets 310 can be distributed circumferentially on the catheter body 100 or axially along the catheter body 100. As long as they are located at the front end of the liquid storage bag 120, no specific limitation is made here.

[0068] The purpose of providing multiple second liquid outlets 310 is to reduce the situation where one second liquid outlet 310 is blocked and the therapeutic liquid cannot be input. For example, when one or two of the second liquid outlets 310 are blocked, there are still other second liquid outlets 310 that can deliver the therapeutic liquid.

[0069] More specifically, in this embodiment, a second one-way valve 320 is disposed in the second branch tube 300 , and the second one-way valve 320 can limit the backflow of the liquid medicine in the second one-way valve 320 , and can also prevent the urine in the bladder from being discharged through the second branch tube 300 .

[0070] In a further embodiment, the steering mechanism 400 of the present invention includes an adjustment handle 410 and a control line 420. The adjustment handle 410 is connected to the rear end of the catheter body 100. The adjustment handle 410 is connected to the control line 420. The control line 420 is located in the corrugated tube 140 in the catheter body 100. The other end of the control line 420 is connected to the rear end of the camera 150. The control handle pulls the control line 420 so that the control line 420 adjusts the bending angle and direction of the camera 150 and thus controls the bending angle and direction of the front end of the catheter body 100.

[0071] It should be noted that the steering mechanism 400 of the present invention is a prior art and will not be described in detail herein.

[0072] The specific working process of a visual urinary catheter kit provided by the present invention is described in combination with the first embodiment above:

[0073] Import:

[0074] Before introduction, start the camera 150, and apply a layer of lubricating liquid on the outer periphery of the catheter body 100 so that it can be smoothly introduced at the beginning. During introduction, the operator connects the first branch tube 200 to the pipeline for conveying the lubricating liquid, and the lubricating liquid enters the first branch tube 200 through the first one-way valve 220. Most of the lubricating liquid passes through the opening 210 of the first branch tube 200, passes through the annular cavity 141 of the bellows 140, and then is discharged into the urethra through the first liquid outlet 130 to avoid damage to the urethra. The operator can observe the condition of the urethra in real time through the camera 150, and can change the bending angle and direction of the catheter body 100 by controlling the adjustment handle 410 to more accurately insert the catheter body 100 into the bladder.

[0075] fixed:

[0076] The camera 150 is used to determine whether the front end of the catheter body 100 has entered the bladder. At the same time, the camera 150 can be used to record the situation in the bladder. The treatment liquid can be adjusted according to the situation in the bladder. After reaching the bladder, the position of the catheter body 100 needs to be fixed and the camera 150 and the bellows 140 need to be withdrawn. At this time, the adjustment handle 410 is pulled, and the adjustment handle 410 pulls the control line 420, and the control line 420 pulls the camera 150. Since the camera 150 is wrapped by the rubber sleeve 160, it drives The rubber sleeve 160 moves to the rear end to pull the annular film 170 to deform. When the annular film 170 is stretched to the limit, the camera 150 can no longer pull the rubber sleeve 160. When the rubber sleeve 160 can no longer move, it has blocked the first liquid outlet 130 and the opening 210 of the first branch pipe 200. The lubricating liquid in the first branch pipe 200 can only enter the liquid storage bag 120, thereby causing the liquid storage bag 120 to expand to fix the catheter body 100 in the bladder to prevent the catheter body 100 from falling off. The camera 150 gradually detaches from the rubber sleeve 160. After all detachments, the rear end of the catheter body 100 is connected to the urine bag. The urine in the bladder enters the catheter channel 110 through the front end of the catheter channel 110 and the catheter groove 111 on the side wall of the rubber sleeve 160 to be discharged into the urine bag, thereby completing the catheterization. After the catheterization is completed, the therapeutic liquid can be input into the bladder through the second branch pipe 300 to treat the patient's bladder and urinary system diseases.

[0077] In the second embodiment of the present invention, please refer to Figure 9-10 , which is different from the structure of the first embodiment described above, the first liquid outlet 130 is not provided on the side wall of the urinary catheter body 100, and a through groove 161 is provided inside the side wall of the rubber sleeve 160, and the through groove 161 occupies the position of one of the multiple urinary catheter grooves 111 (of course, the position of the urinary catheter groove 111 can also be changed to avoid occupying the position of the urinary catheter groove 111), one end of the through groove 161 is connected to the first branch pipe 200, and the other end of the through groove 161 is connected to the front end surface of the rubber sleeve 160, and the annular film 170 limits the distance that the rubber sleeve 160 moves to the rear end to be shorter, and the other structures are the same as those in the above-mentioned embodiment, and the first branch pipe 200 is connected to the through groove 161 of the rubber sleeve 160, so that the lubricating liquid in the first branch pipe 200 can enter the urethra through the front end of the rubber sleeve 160, and the impact force of the lubricating liquid can cause the urethra to open a part, thereby facilitating the introduction of the urinary catheter body 100.

[0078] The specific working process of a visual urinary catheter kit provided by the present invention is described in combination with the above second embodiment:

[0079] The other structures are the same as those of the first embodiment. The difference from the first embodiment is that when the catheter body 100 enters the urethra, the lubricating liquid in the first branch tube 200 passes through the through groove 161 in the side wall of the rubber sleeve 160 and is discharged from the front end of the rubber sleeve 160 to lubricate the urethra. At the same time, the impact force of the lubricating liquid can cause the urethra to open partially, which is convenient for introduction.

[0080] When the catheter body 100 enters the bladder and needs to be fixed and the camera 150 and the bellows 140 need to be removed, the operation steps are the same as those in the first embodiment, with the only difference being that the annular film 170 in this embodiment limits the rubber sleeve 160 to move to a shorter distance toward the rear end. When the rubber sleeve 160 is restricted, the first branch tube 200 is disconnected from the through groove 161 of the rubber sleeve 160, and the rubber sleeve 160 blocks the position where the first branch tube 200 is connected to the through groove 161, so that the lubricating liquid in the first branch tube 200 can only enter the liquid storage bag 120, and the liquid storage bag 120 expands to fix the position of the catheter body 100.

[0081] The subsequent delivery of the therapeutic liquid is the same as the operation of the first embodiment described above, and will not be described in detail.

[0082] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0083] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A visual urinary catheter kit, characterized in that: include: A urinary catheter body, wherein the urinary catheter body has a urinary catheter channel inside and a liquid storage bag is arranged near the front end, and when the liquid storage bag is expanded, the urinary catheter body can be fixed in the bladder; A camera, the camera is located at the front end of the catheter body and can capture urethra images; A steering mechanism, wherein the steering mechanism is capable of adjusting the bending angle and direction of the urinary catheter body; A bellows, which is arranged in the urinary catheter channel and has elasticity, and can support the urinary catheter body; a first branch pipe, the first branch pipe is arranged inside the side wall of the catheter body and is connected to the liquid storage bag, a first liquid outlet is opened on the catheter body near the lower part of the liquid storage bag, the first branch pipe is also connected to the first liquid outlet, and the first branch pipe can transport lubricating liquid; A switch assembly, the switch assembly can open or close the first liquid outlet, and the switch assembly is configured as follows: When the urinary catheter body moves in the urethra, the switch assembly opens the first liquid outlet, and the lubricating liquid in the first branch tube passes through the first liquid outlet to lubricate the urethra; When the urinary catheter body moves to the bladder, the switch assembly closes the first liquid outlet, and the lubricating liquid in the first branch pipe props up the liquid storage bag to fix the position of the urinary catheter body; The switch assembly includes a rubber sleeve, the rear end of the rubber sleeve and the bellows are slidably embedded in the catheter body, the rubber sleeve wraps the camera, an annular cavity is formed between two adjacent wave crests of the bellows, the first liquid outlet and the first branch pipe are connected to the same annular cavity, and after the catheter body enters the bladder, the bellows drives the rubber sleeve to move downward to block the first liquid outlet.

2. The visualization urinary catheter kit according to claim 1, characterized in that: An annular film is arranged at the front end of the rubber sleeve, the inner diameter of the annular film is connected to the front end of the rubber sleeve, and the outer diameter of the annular film is connected to the front end of the urinary catheter body.

3. The visualization urinary catheter kit according to claim 2, characterized in that: The annular film has elasticity.

4. The visualization urinary catheter kit according to claim 1, characterized in that: There are a plurality of first liquid outlets, which are distributed along the circumference of the catheter body. A plurality of urinary catheter grooves are provided on the side wall of the rubber sleeve, and the plurality of urinary catheter grooves pass through the rubber sleeve.

5. The visualization urinary catheter kit according to claim 1, characterized in that: A first one-way valve is arranged in the first branch pipe, and the first one-way valve can limit the backflow of the lubricating liquid in the first branch pipe.

6. The visualization urinary catheter kit according to claim 1, characterized in that: A second branch pipe is arranged inside the side wall of the catheter body, a second liquid outlet is opened at the front end of the catheter body near the liquid storage bag, the second branch pipe is connected to the second liquid outlet, and the second branch pipe can transport therapeutic liquid.

7. The visualization urinary catheter kit according to claim 6, characterized in that: There are a plurality of second liquid outlets, and the plurality of second liquid outlets are all connected to the second branch pipe.

8. The visualization urinary catheter kit according to claim 6, characterized in that: The second branch pipe is provided with a second one-way valve, and the second one-way valve can limit the backflow of the therapeutic liquid in the second branch pipe.

9. The visualization urinary catheter kit according to claim 1, characterized in that: The steering mechanism includes an adjustment handle and a control line. The adjustment handle is arranged at the rear end of the catheter body. The control line passes through the corrugated tube and is connected to the camera. The handle is connected to the control line to adjust the bending angle and direction of the camera.

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