Portable intermittent lubrication urinary catheter and use method therefor

Abstract

Disclosed are a portable intermittent lubrication urinary catheter and a use method therefor, the urinary catheter comprising a catheter tube. A rear end of the catheter tube is installed on a telescopic assembly capable of driving the catheter tube to extend or retract. The telescopic assembly is provided with a liquid outlet. When the catheter tube extends out of the telescopic assembly, urine can enter the catheter tube to be discharged from the liquid outlet. A front end of the telescopic assembly is detachably connected to a liquid storage assembly, and the catheter tube is accommodated within a cavity formed by the liquid storage assembly and the telescopic assembly. A liquid storage chamber for storing a lubricant is provided in the liquid storage assembly. When the liquid storage chamber is in communication with the telescopic assembly, the lubricant in the liquid storage chamber is released to moisten and lubricate the catheter tube. The use method provided by the present invention is convenient. The urinary catheter adopts the concealed catheter tube, eliminates the need for configuration of a separately packaged lubricant, is easy to carry and not easy to expose privacy, and can quickly release the lubricant to lubricate the catheter tube, reducing the possibility of the catheter tube being contaminated during exposure, allowing for contactless insertion throughout the process, and reducing the possibility of urinary tract infections. After use, the catheter tube can be resealed to prevent environmental pollution.

Description

Portable intermittent lubricating urinary catheter and method of use thereof Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a portable intermittent lubricating urinary catheter and a method for using the same. Background Art

[0002] For patients with urinary incontinence, spinal cord injury, neurogenic bladder or urinary tract surgery, intermittent catheterization is usually required to regularly empty the patient's bladder to reduce urine retention and bladder pressure, prevent urinary tract infection and related complications, and promote recovery and healing.

[0003] Currently, commonly used disposable intermittent urinary catheters consist of a catheter and a sheath, or only include a catheter. The catheter is made of PVC or rubber materials and is mostly sealed in a plastic packaging bag.

[0004] Existing disposable intermittent urinary catheters have been found to have some defects during use. For example, this packaging method takes up a lot of space, and the transparent packaging is not conducive to protecting the user's personal privacy; the lubricant and the catheter are packaged separately, and before lubricating the catheter, the packaging bag containing the lubricant needs to be torn open. This process can easily cause the lubricant to splash or come into contact with the hands, causing contamination, which brings great inconvenience to the operation; when the packaging bag is torn open or during use, the catheter is directly exposed to the air and comes into contact with the hands, increasing the risk of contamination, which is very detrimental to the user's health.

[0005] Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a portable intermittently lubricated urinary catheter and a method for using the same. The catheter adopts a concealed setting, and the entire catheter is portable and effectively protects the user's privacy. The lubricant is directly stored in the liquid storage chamber. When in use, it can be quickly released and lubricated. The catheter can be inserted into the urethra without contact, effectively avoiding catheter exposure and reducing the risk of catheter contamination. It can be resealed after use to reduce contamination.

[0007] According to one aspect of the present invention, a portable intermittently lubricated urinary catheter is provided, comprising a catheter having a hollow tube body and a urinary catheter hole provided on a front end wall of the catheter, and further comprising:

[0008] A telescopic assembly, wherein the rear end of the catheter is mounted on the telescopic assembly, and the telescopic assembly can drive the catheter to extend out of the telescopic assembly or retract into the telescopic assembly. The telescopic assembly is provided with a drainage port. When the catheter is extended out of the telescopic assembly, urine can enter the catheter through the catheter port and be discharged from the drainage port.

[0009] The liquid storage component is detachably connected to the telescopic component and covers the front end of the catheter. The liquid storage component is provided with a liquid storage chamber for storing lubricant. When the liquid storage chamber is connected to the telescopic component, the lubricant in the liquid storage chamber flows out and soaks the lubricating catheter.

[0010] Thus, the telescopic component and the liquid storage component are assembled to form a chamber for accommodating the catheter. The rear end of the catheter is configured with a telescopic component for extending and retracting the catheter. The liquid storage chamber is located at the front end of the catheter. When the urinary catheter needs to be used, the catheter is in the retracted position, and the liquid storage chamber is connected to the telescopic component. The lubricant stored in the liquid storage chamber flows down, soaks the catheter, and lubricates the catheter. After the catheter is lubricated, the telescopic component gradually extends the catheter. The catheter is gradually advanced into the urethra little by little, that is, the catheter is screwed into the urethra little by little, rather than the entire catheter being exposed to the air. This avoids the entire catheter being exposed to the air when inserted into the urethra. The intermittent lubricating urinary catheter is a portable and effective lubricant that protects the user's privacy. It can lubricate the catheter in a closed space and is very convenient to operate, avoiding exposure of the catheter. The catheter is extended by the telescopic component and then inserted into the urethra for use. The user's hands do not need to touch the catheter during the entire process, thus realizing contactless insertion into the urethra and reducing the risk of catheter contamination.

[0011] In some embodiments, the telescopic assembly includes a lower sleeve, a guide sleeve, and a sheath shaft. The guide sleeve has a rear end provided with a rotary handle, the guide sleeve and the rotary handle forming a stepped structure. The guide sleeve is a hollow tube with a grid formed therein to form a plurality of drainage ports. The lower sleeve is sleeved onto the guide sleeve, the inner wall of the lower sleeve having a spiral groove, the body of the guide sleeve having a Z-shaped groove, and the rear end of the catheter has a base with a stepped boss, which is mounted on the sheath shaft. The sheath shaft is assembled in the Z-shaped groove of the guide sleeve and is adapted to the spiral groove of the lower sleeve. When the rotary handle is rotated, the catheter extends or retracts relative to the guide sleeve along with the sheath shaft. Thus, when a user holds the lower sleeve and rotates the rotary handle, the guide sleeve and the rotary handle rotate together, causing the sheath shaft to spirally rise along the Z-shaped groove of the guide sleeve and the spiral groove of the lower sleeve, extending the catheter. The end of the Z-shaped groove of the guide sleeve forms a barrier to prevent the sheath shaft from extending excessively and slipping out. Reversing the rotary handle retracts the catheter, and after retraction, the catheter is stored in the guide sleeve.

[0012] In some embodiments, a protective plug is positioned in the center of the grid. The plug protrudes toward the catheter and is embedded within the catheter's base. When the catheter extends relative to the guide tube along with the sheath shaft, the base disengages from the plug. Thus, the plug, guide tube, and rotary handle form an integral structure. The plug fits snugly against the catheter's base, sealing the distal end of the catheter. This helps position the catheter when retracted, prevents impurities from entering the catheter through the drain port when not in use, and facilitates lubrication of the catheter while sealed.

[0013] In some embodiments, the catheter surface is coated with a hydrophilic coating, and the lubricant is a saline solution. Thus, by using a saline solution as the lubricant and pre-coating the hydrophilic coating on the catheter surface, the saline solution, when soaking the catheter, attracts water molecules to the catheter surface, providing a better lubrication effect and reducing discomfort during insertion of the catheter into the urethra.

[0014] In some embodiments, the liquid storage assembly includes an upper sleeve (1) and a screw cap (1), with the ends of the upper sleeve (1) connected to the lower sleeve and the screw cap (1), respectively. A sealing sheet is provided on the side of the upper sleeve (1) near the lower sleeve. The screw cap (1), the upper sleeve (1), and the sealing sheet form a liquid storage chamber. A cutting knife is provided in the screw cap (1). When the cutting knife breaks the sealing sheet, lubricant in the liquid storage chamber enters the guide tube and soaks the lubricating conduit. Thus, the lubricant is placed in the upper sleeve (1), the screw cap (1) is assembled with the upper sleeve (1), the cutting knife is immersed in the lubricant, and then the upper sleeve (1) and the lower sleeve of the liquid storage assembly are assembled. The sealed lubricant is prevented from leaking. When lubricating the conduit, the sealing sheet is broken with the cutting knife, causing the lubricant to flow out from the damaged sealing sheet, directly into the guide tube, and soak the lubricating conduit.

[0015] In some embodiments, a flange perpendicular to the sealing sheet is provided on the side of the sealing sheet facing the first screw cap. The cutting blade includes a curved surface, ridges, and a pointed end. The curved surface and the ridges are connected to the side of the first screw cap, and the vertical surface of the ridges is connected to the curved surface. The pointed end is located at the end of the curved surface. When the first screw cap is rotated, the pointed end squeezes and cuts the flange of the sealing sheet, destroying the sealing sheet. Thus, when the first screw cap is rotated, the pointed end of the cutting blade pushes against the flange of the sealing sheet, creating a squeezing and cutting effect through the thrust, thereby destroying the sealing sheet and causing the lubricant to leak into the guide cylinder.

[0016] In some embodiments, the upper sleeve (1) is provided with an outer wall (1) and an inner wall (1) on one side of the lower sleeve. The outer wall (1) is longer than the inner wall (1) and is threadedly connected to the lower sleeve. The inner wall (1) is positioned within the lower sleeve and contacts the guide tube. A sealing sheet is provided on the inner wall (1) of the upper sleeve (1), and a sealing ring is provided at the connection between the screw cap (1) and the upper sleeve (1). Thus, the sealing ring can provide a more effective seal for the formed liquid storage chamber. The design of the inner and outer walls of the upper sleeve (1) not only facilitates the installation of the upper sleeve (1) and the lower sleeve, but also facilitates the precise leakage of lubricant into the guide tube after the sealing sheet is broken, preventing the lubricant from leaking onto the outer wall of the entire catheter, thus facilitating hand hygiene.

[0017] In some embodiments, an anti-theft ring is provided at one end of the upper sleeve 1, which is adjacent to the lower sleeve. A plurality of buckles are provided within the anti-theft ring 1. When the upper sleeve 1 is unscrewed, the buckles are squeezed by the threads, breaking the anti-theft ring 1. Thus, the anti-theft ring 1 is provided to indicate that the product is disposable, thereby improving safety.

[0018] In some embodiments, the liquid storage component includes an upper sleeve 2 and a screw cap 2, the two ends of the upper sleeve 2 are respectively connected to the lower sleeve and the screw cap 2, the upper sleeve 2 is provided with an outer wall 2 and an inner wall 2 on the side close to the lower sleeve, the outer wall 2 is longer than the inner wall 2, and the outer wall 2 is connected to the lower sleeve by a thread, the inner wall 2 is placed in the lower sleeve and is in conflict with the guide cylinder, the inner wall 2 is connected with a convex disc, the inner wall 2 is provided with a cavity door, the bottom of the cavity door extends to the top of the guide cylinder, the upper sleeve 2 is provided with an arc-shaped groove on the side close to the screw cap 2, the screw cap 2 is provided with a sheath rod that cooperates with the arc-shaped groove, the top of the screw cap 2 is in conflict with the convex disc, so that a liquid storage chamber is formed between the inside of the screw cap 2 and the convex disc, when the screw cap 2 is rotated to separate the convex disc, the lubricant enters the guide cylinder through the cavity door and soaks the lubrication conduit, and the upper sleeve 2 is provided with an anti-theft ring 2 on one end close to the lower sleeve. Thus, the lubricant is placed in the liquid storage chamber formed by the assembly of the screw cap 2 and the upper sleeve 1. When lubrication of the catheter is needed, the screw cap 2 is rotated relative to the upper sleeve 1, the sheath rod is guided along the arc-shaped slide groove, the lower end of the screw cap 2 is separated from the convex disc of the upper sleeve 1, and the lubricant flows from the chamber door into the guide cylinder and soaks the lubricating catheter.

[0019] According to another aspect of the present invention, a method for using the portable intermittently lubricated urinary catheter is provided, comprising the following steps:

[0020] S1a: The screw cap 1 is rotated, and the screw cap 1 is misaligned with the upper sleeve 1. The tip of the screw cap 1 squeezes and cuts the flange of the sealing sheet, destroying the sealing sheet. The lubricant in the liquid storage chamber enters the guide tube and soaks the lubricating conduit. As the upper sleeve 1 rotates, the screw thread squeezes the buckle of the anti-theft ring 1, causing the anti-theft ring 1 to break.

[0021] S2a: Continue to rotate the upper sleeve 1 to separate the upper sleeve 1 from the lower sleeve;

[0022] S3a: Turn the rotary handle, the catheter moves outward along with the sheath shaft relative to the guide cylinder, the base is separated from the protective plug, and the interior of the catheter is connected to the drainage port;

[0023] S4a: The catheter is gradually extended and screwed into the user's urethra. Urine enters the catheter through the catheter hole and is discharged through the drainage port. The discharged urine can be directly connected to the toilet or connected to a urine collection bag through an interventional connector.

[0024] S5a: After urination is completed, the handle is rotated in the opposite direction, and the catheter retracts relative to the guide tube along with the sheath shaft, and the base of the catheter is engaged with the protective plug, and the upper sleeve 1 equipped with the screw cap 1 is sealed with the lower sleeve through a threaded connection.

[0025] According to another aspect of the present invention, a method for using the portable intermittently lubricated urinary catheter is provided, comprising the following steps:

[0026] S1b: Rotate the second screw cap to separate it from the convex disc, and the lubricant in the liquid storage chamber passes through the chamber door and enters the guide cylinder and soaks the lubricating conduit;

[0027] S2b: Rotate the upper sleeve 2 to separate the upper sleeve 2 from the lower sleeve. As the upper sleeve 2 rotates, the anti-theft ring 2 is destroyed.

[0028] S3b: Turn the rotary handle, the catheter moves outward relative to the guide tube along with the sheath shaft, the base is separated from the protective plug, and the interior of the catheter is connected to the drainage port;

[0029] S4b: The catheter is gradually extended and screwed into the user's urethra. Urine enters the catheter through the catheter hole and is discharged through the drainage port. The discharged urine can be directly connected to the toilet or connected to a urine collection bag through an intervention connector.

[0030] S5b: After urination is completed, the handle is rotated in the opposite direction, and the catheter retracts relative to the guide tube along with the sheath shaft. The base of the catheter is engaged with the protective plug, and the upper sleeve 2 equipped with the screw cap 2 is connected and sealed with the lower sleeve through a threaded connection, and the screw cap 2 is rotated to reset it with the upper sleeve 2.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) The portable intermittent lubricating urinary catheter houses the catheter inside and is a hidden setting. The overall design is compact, convenient for users to carry around, and not easy to expose privacy.

[0033] (2) There is no need to prepare a separately packaged lubricant. The lubricant can be directly stored in the liquid storage chamber above the catheter. The lubricant can be released by simply turning the first or second screw cap to quickly lubricate the catheter, thereby avoiding splashing of the lubricant when the lubricant package is torn open. It also reduces the possibility of the catheter being exposed to the air and contaminated by the outside world after the package is torn open. During the lubrication process, the user's hands do not touch the catheter.

[0034] (3) The catheter is equipped with a telescopic component, and the handle can be turned to extend or retract the catheter. During the process of inserting the catheter into the urethra, it is pushed into the urethra little by little, that is, the catheter is screwed into the urethra little by little, rather than the entire catheter being exposed to the air. This avoids the possibility of the entire catheter being exposed to the air when inserted into the urethra and causing infection, and enables contactless insertion throughout the entire process.

[0035] (4) After use, the catheter is retracted and stored, and can be resealed and discarded to prevent the waste generated from polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1 is a perspective view of an embodiment of a portable intermittently lubricated urinary catheter of the present invention;

[0037] FIG2 is a schematic diagram of the internal structure of an embodiment of a portable intermittently lubricated urinary catheter;

[0038] FIG3 is a schematic diagram of the three-dimensional structure of the rotary cover 1;

[0039] FIG4 is a schematic diagram of the structure of the screw cap 1 and the sealing sheet, wherein FIG4A is a schematic diagram of the screw cap 1 and the sealing sheet from one perspective when the sealing sheet is cross-sectional, and FIG4B is a schematic diagram of the screw cap 1 and the sealing sheet from another perspective when the sealing sheet is intact;

[0040] Figure 5 is a perspective view of the upper sleeve 1;

[0041] FIG6 is a schematic structural diagram of the upper sleeve 1, wherein FIG6A is a front view of the upper sleeve 1, and FIG6B is a schematic internal structural diagram of the upper sleeve 1;

[0042] FIG7 is a schematic structural diagram of the lower sleeve, wherein FIG7A is a perspective view of the lower sleeve, and FIG7B is a schematic internal structural diagram of the lower sleeve;

[0043] FIG8 is a perspective view of a guide cylinder;

[0044] FIG9 is a schematic diagram of FIG1 from another perspective;

[0045] FIG10 is a perspective view of another embodiment of a portable intermittently lubricated urinary catheter of the present invention;

[0046] FIG11 is a schematic diagram of FIG10 from another perspective;

[0047] FIG12 is a schematic structural diagram of the second rotary cover, wherein FIG12A is a perspective view of the second rotary cover, and FIG12B is a schematic structural diagram of the second rotary cover without the cover assembled;

[0048] FIG13 is a schematic structural diagram of the upper sleeve 2, wherein FIG13A is a stereoscopic diagram of the upper sleeve 2, and FIG13B is a schematic internal structural diagram of the upper sleeve 2. DETAILED DESCRIPTION

[0049] The present invention will be further described below in conjunction with specific embodiments.

[0050] Example 1

[0051] As shown in Figures 1 and 2, a portable intermittently lubricated urinary catheter according to one embodiment of the present invention comprises a catheter 1 having a hollow tubular structure. The front end of the catheter 1 has an arc-shaped tip 11 to facilitate smooth insertion into the urethra. A pair of catheter holes 12 are formed on both sides of the front wall of the catheter 1 using laser drilling technology. The catheter holes 12 are polished elliptical holes. In actual use, the catheter holes 12 can also have other shapes, such as circular. The catheter also includes a telescopic assembly M and a liquid storage assembly N. The rear end of the catheter 1 is mounted on the telescopic assembly M. The telescopic assembly M can drive the catheter 1 to extend outside the telescopic assembly M or retract inside the telescopic assembly M. The telescopic assembly M has a drainage port 20 (shown in Figure 9). When the catheter 1 is extended outside the telescopic assembly M, the catheter 1 can communicate with the drainage port 20, allowing urine to enter the catheter 1 through the drainage port 12 and be discharged from the drainage port 20. The liquid storage assembly N is detachably connected to the telescopic assembly M. When the liquid storage assembly N and the telescopic assembly M are assembled together, they form a cavity that can accommodate the catheter 1 and cover the catheter 1. The liquid storage assembly N includes a liquid storage chamber 4 for storing lubricant. When the liquid storage chamber 4 is connected to the telescopic assembly M, the lubricant in the liquid storage chamber 4 flows out and soaks the lubricating conduit 1.

[0052] The telescopic assembly M and the liquid storage assembly N are assembled to form a chamber for accommodating the catheter 1. The rear end of the catheter 1 is configured with the telescopic assembly M to realize the extension and retraction of the catheter 1. The liquid storage chamber 4 is located at the front end of the catheter 1. When the urinary catheter needs to be used, the catheter 1 is in the retracted position, and the liquid storage chamber 4 is connected to the telescopic assembly M. The lubricant stored in the liquid storage chamber 4 flows down, soaking the catheter 1 and lubricating the catheter 1. After the catheter 1 is lubricated, the telescopic assembly M extends the catheter 1, and the catheter 1 is inserted into the urethra. Urine enters the interior of the catheter 1 through the catheter hole 12 and is then discharged through the drainage port 20.

[0053] The intermittently lubricated urinary catheter comprises a housing formed by a telescopic component M and a liquid storage component N, which conceals the catheter 1 used for urinary catheterization. The intermittently lubricated urinary catheter is portable and effectively protects the user's privacy. It does not require the provision of a separately packaged lubricant and can lubricate the catheter 1 in a closed space. The operation is very convenient, preventing the catheter 1 from being exposed. The catheter 1 is extended using the telescopic component M, then gradually screwed in and inserted into the urethra for use. The user's hand does not need to touch the catheter 1 throughout the entire process, achieving contactless insertion into the urethra and reducing the risk of contamination of the catheter 1. Since the catheter 1 is inserted into the urethra little by little, i.e., it is screwed into the urethra little by little, rather than being fully extended and exposing the entire catheter 1 to the air, the possibility of infection caused by the entire catheter 1 being exposed to the air when inserted into the urethra is avoided.

[0054] Specifically, as shown in Figures 2, 7 to 9, the telescopic assembly M includes a lower sleeve 3, a guide tube 2 and a sheath shaft 14. The guide tube 2 is a hollow tube, and a rotary handle 21 is extended from the rear end of the guide tube 2. The outer wall of the rotary handle 21 has a circle of anti-slip ridges 211, and the guide tube 2 and the rotary handle 21 form a step-like structure. At the connection position between the guide tube 2 and the rotary handle 21, a plurality of drainage ports 20 are formed inside the guide tube 2 through a grid, and the plurality of drainage ports 20 are fan-shaped hollow structures. There is a protective plug 22 in the center of the grid, and the protective plug 22 protrudes toward the side where the catheter 1 is located. A base 13 with a stepped boss is extended from the rear end of the catheter 1. The base 13 is also hollow and is connected to the catheter 1 internally. The protective plug 22 can be embedded in the base 13 of the catheter 1. When the protective plug 22 is embedded in the base 13, the drainage port 22 is blocked. The protective plug 22 is stepped and has a rounded top, facilitating assembly between the base 13 of the catheter 1 and the protective plug 22, as well as docking and insertion of the protective plug 22 when the catheter 1 is reset. The protective plug 22, the guide cylinder 2, and the rotary handle 21 are integrally formed. The protective plug 22 fits tightly against the base 13 of the catheter 1, sealing the end of the catheter 1. This allows positioning of the catheter 1 when it is retracted, prevents impurities from entering the catheter 1 through the drain port 20 when the catheter 1 is not in use, and facilitates lubrication of the catheter 1 in a sealed state. The lower sleeve 3 is fitted over the guide cylinder 2 and engages with the rail groove 32 of the lower sleeve 3 via several clips 24 at the base of the guide cylinder 2, preventing the guide cylinder 2 from detaching from the lower sleeve 3 and allowing the guide cylinder 2 to rotate within the lower sleeve 3. The inner wall of the lower sleeve 3 is provided with a continuous spiral groove 31. In order to better arrange the spiral groove 31 and to ensure that the lubricant is lubricated in a sealed space when the catheter 1 is lubricated, the portion of the lower sleeve 3 that is not connected to the liquid storage assembly N adopts an inner and outer double-wall design. The spiral groove 31 is grooved inside the inner wall, and the bottom of the groove does not penetrate the inner wall itself. A Z-shaped groove 23 is provided on the body of the guide cylinder 2. The sheath shaft 14 is mounted on the outside of the base 13. The sheath shaft 14 is assembled in the Z-shaped groove 23 of the guide cylinder 2 and is adapted to the spiral groove 31 of the lower sleeve 3. When the handle 21 is turned, the catheter 1 extends or retracts relative to the guide cylinder 2 along with the sheath shaft 14. The end of the Z-shaped groove 23 of the guide cylinder 2 forms a barrier to prevent the sheath shaft 14 from extending excessively and slipping out.

[0055] When the user holds the lower sleeve 3 and rotates the knob 21, the guide cylinder 2 and the knob 21 rotate together, causing the sheath shaft 14 to spiral upward along the Z-shaped groove 23 of the guide cylinder 2 and the spiral groove 31 of the lower sleeve 3, extending the catheter 1. As the catheter 1 extends relative to the guide cylinder 2 as the sheath shaft 14 does, the base 13 disengages from the protective plug 22, allowing the interior of the catheter 1 to communicate with the drain port 20. Reversing the knob 21 retracts the catheter 1, which is then stored within the guide cylinder 2. Ultimately, the base 13 of the catheter 1 is retracted and inserted back into the protective plug 22 at the knob 21.

[0056] During the manufacture of the catheter 1, a hydrophilic coating is applied to the surface of the catheter 1. A physiological saline solution is used as a lubricant. The pre-coating of the hydrophilic coating on the surface of the catheter 1 allows the saline solution to absorb water molecules when the catheter 1 is soaked, providing a better lubrication effect and reducing discomfort during insertion of the catheter 1 into the urethra.

[0057] In this embodiment, as shown in FIG2 , the liquid storage assembly N comprises an upper sleeve 5 and a screw cap 6 . The ends of the upper sleeve 5 are connected to the lower sleeve 3 and the screw cap 6 , respectively. A sealing sheet 51 is provided on the inner side of the upper sleeve 5 near the lower sleeve 3 . The screw cap 6 , the upper sleeve 5 , and the sealing sheet 51 form a liquid storage chamber 4 . A cutter 61 is provided within the screw cap 6 . Once the cutter 61 breaks the sealing sheet 51 , lubricant in the liquid storage chamber 4 enters the guide tube 2 and soaks the lubricating conduit 1 . The outer wall of the screw cap 6 has anti-slip ridges 601 (see FIG1 ).

[0058] Specifically, as shown in Figures 5 and 6 , the side of the upper sleeve 5 that faces the lower sleeve 3 comprises an outer wall 501 and an inner wall 502. The outer wall 501 is longer than the inner wall 502 and is threadedly connected to the lower sleeve 3. The inner wall 502 is positioned within the lower sleeve 3 and contacts the guide tube 2. A sealing sheet 51 is provided on the inner wall 502 of the upper sleeve 5. The sealing sheet 51 and the upper sleeve 5 are integrally injection molded, and the wall thickness of the sealing sheet 51 is thinner than that of the inner wall 502. During assembly, a sealing ring 62 is installed at the connection between the screw cap 6 and the upper sleeve 5. The sealing ring 62 enhances the sealing effect of the formed liquid storage chamber 4. The screw cap 6 and the upper sleeve 5 are fastened together by a snap 63. The design of the inner and outer walls of the upper sleeve 5 facilitates the installation of the upper sleeve 5 and the lower sleeve 3, and is also beneficial for the lubricant to leak accurately into the guide tube 2 after the sealing sheet 51 is damaged, thereby preventing the lubricant from leaking to the outer wall of the entire catheter, which is beneficial to maintaining hand hygiene.

[0059] The side of the sealing sheet 51 facing the screw cap 6 has a flange 511 perpendicular to the sealing sheet 51. The flange 511 is integrally formed with the sealing sheet 51. As shown in Figures 3 and 4, the cutting blade 61 comprises a curved surface 611, ridges 612, and a pointed end 613. The curved surface 611 and the ridges are connected to one side of the screw cap 6, with the vertical surface of the ridges connected to the curved surface 611. The pointed end 613 is located at the end of the curved surface 611. When the screw cap 6 is rotated, the pointed end 613 squeezes and cuts the flange 511 of the sealing sheet 51, destroying the sealing sheet 51.

[0060] To indicate that the catheter is disposable and enhance safety, as shown in Figure 2, an anti-theft ring 52 is installed at the end of the upper sleeve 5 near the lower sleeve 3. The anti-theft ring 52 is located at the bottom of the outer wall 501 of the upper sleeve 5 and contains several clips 521. The interior of the screw cap 6 has a vertical screw cap ridge 64 (shown in Figure 3), and the inner wall of the upper end of the upper sleeve 5 has a vertical upper sleeve ridge 53 (shown in Figure 5). When the screw cap 6 is rotated, the screw cap ridge 64 displaces and pushes the upper sleeve ridge 53 open. As the upper sleeve 5 rises relative to the lower sleeve 3, the screw thread squeezes the clips, breaking the anti-theft ring 52. As the screw cap 6 rotates, the tip 613 of the cutter 61 pushes against the flange 511 on the sealing sheet 51, creating a squeezing and cutting effect, thereby breaking the sealing sheet 51 and allowing the lubricant to leak into the guide tube 2.

[0061] Lubricant is placed in upper sleeve 1 5 , screw cap 1 6 is assembled with upper sleeve 1 5 , and cutter 61 is immersed in the lubricant. Then, upper sleeve 1 5 of the liquid reservoir assembly N is assembled with lower sleeve 3 , sealing the stored lubricant to prevent leakage. When lubrication of conduit 1 is required, cutter 61 is used to break sealing sheet 51 , allowing lubricant to flow out through the broken sealing sheet 51, directly into guide tube 2, and soak lubricating conduit 1 .

[0062] The method for using the portable intermittent lubricating urinary catheter comprises the following steps:

[0063] S1a: Rotate the screw cap 6, the screw cap ridge 64 pushes the upper sleeve ridge 53, and then the upper sleeve 5 rotates, and the upper sleeve 5 rises relative to the lower sleeve 3, squeezing the buckle 521 of the anti-theft ring 52 through the thread, thereby breaking the anti-theft ring 52; the screw cap 6 is misaligned with the upper sleeve 5, and the screw cap 6 is rotated, and the tip 613 of the screw cap 6 squeezes and cuts the flange 511 of the sealing sheet 51, destroying the sealing sheet 51, and the lubricant in the liquid storage chamber 4 enters the guide tube 2 and soaks the lubricating conduit 1.

[0064] S2a: Rotate the upper sleeve 5 to separate the upper sleeve 5 from the lower sleeve 3.

[0065] S3a: Lower the liquid storage assembly N composed of the rotary cap 6 and the upper sleeve 5; operate the telescopic assembly M, rotate the rotary handle 21, and the catheter 1 extends relative to the guide tube 2 along with the sheath shaft 14, and the base 13 is separated from the protective plug 22. The interior of the catheter 1 is connected with the drainage port 20. Specifically, the interior of the catheter 1, the interior of the guide tube 2 and the drainage port 20 form a channel for draining the liquid.

[0066] S4a: The head of the catheter 1 is extended and inserted into the user's urethra. As the catheter 1 is gradually extended, it gradually rotates into the user's urethra. Urine enters the catheter 1 through the urethral hole 12 and is discharged through the drainage port 20. The discharged urine can be directly connected to a toilet or connected to a urine collection bag via an intervening connector.

[0067] S5a: After urination is complete, the handle 21 is rotated in the opposite direction, causing the catheter 1 to retract relative to the guide tube 2 along with the sheath shaft 14. The base 13 of the catheter 1 engages with the protective plug 22, threading the upper sleeve 5, equipped with the screw cap 6, to seal the lower sleeve 3. Finally, the used catheter can be disposed of as medical waste.

[0068] Example 2

[0069] The only difference between this embodiment 2 and embodiment 1 is that the structure of the liquid storage component N is different.

[0070] Specifically, as shown in Figures 10 to 13, the liquid storage assembly N includes an upper sleeve 7 and a screw cap 8. The ends of the upper sleeve 7 are connected to the lower sleeve 3 and the screw cap 8, respectively. The screw cap 8 has a snap-fitting cover 81. The upper sleeve 7 has an outer wall 701 and an inner wall 702 on the side of the lower sleeve 3. The outer wall 701 is longer than the inner wall 702 and is connected to the lower sleeve 3 via threads. The inner wall 702 is placed inside the lower sleeve 3 and contacts the guide tube 2. A convex disc 71 is connected to the interior of the inner wall 702. The inner wall 702 defines a cavity door 72, the bottom of which extends above the guide tube 2. The upper sleeve 7 has an arcuate slot 73 on the side of the screw cap 8. The screw cap 8 has a sheath rod 82 that cooperates with the arcuate slot 73. The top of the second screw cap 8 contacts the convex disc 71, forming a liquid storage chamber 4 between the interior of the second screw cap 8 and the convex disc 71. When the second screw cap 8 is rotated to separate from the convex disc 71, lubricant enters the guide tube 2 through the chamber door 72 and soaks the lubricating conduit 1. The end of the upper sleeve 7 adjacent to the lower sleeve 3 is provided with a theft-proof ring 74. Lubricant is placed in the liquid storage chamber 4 formed by the assembly of the second screw cap 8 and the upper sleeve 5. When lubrication of the conduit 1 is required, the second screw cap 8 is rotated relative to the upper sleeve 5. The sheath 82 is guided along the arcuate groove 73, and the lower end of the second screw cap 8 separates from the convex disc 71 of the upper sleeve 5. The lubricant then flows through the chamber door 72 into the guide tube 2 and soaks the lubricating conduit 1.

[0071] The method for using the portable intermittent lubricating urinary catheter comprises the following steps:

[0072] S1b: Rotate the second rotary cover 8 to separate the second rotary cover 8 from the convex disc 71 , and the lubricant in the liquid storage chamber 4 enters the guide tube 2 through the chamber door 72 and soaks the lubricating conduit 1 .

[0073] S2b: Rotate the upper sleeve 2 7 to separate the upper sleeve 2 7 from the lower sleeve 3. As the upper sleeve 2 7 rotates, the anti-theft ring 2 74 is destroyed.

[0074] S3b: Turn the rotary handle 21 , the catheter 1 extends relative to the guide tube 2 along with the sheath shaft 14 , the base 13 is separated from the protective plug 22 , and the interior of the catheter 1 is connected to the drain port 20 .

[0075] S4b: The head of the catheter 1 is extended and inserted into the user's urethra. As the catheter 1 is gradually extended, it gradually rotates into the user's urethra. Urine enters the catheter 1 through the urethral hole 12 and is discharged through the drainage port 20. The discharged urine can be directly connected to a toilet or connected to a urine collection bag via an intervening connector.

[0076] S5b: After urination is completed, the handle 21 is rotated in the opposite direction, and the catheter 1 retracts relative to the guide tube 2 along with the sheath shaft 14. The base 13 of the catheter 1 is engaged with the protective plug 22, and the upper sleeve 2 7 equipped with the screw cap 2 8 is sealed with the lower sleeve 3 through a threaded connection, and the screw cap 2 8 is rotated to reset it to the upper sleeve 2 7.

[0077] The portable intermittent lubricating urinary catheter has good concealment, and the catheter 1 is housed inside and is concealed. The overall design is compact, convenient for the user to carry around, and does not easily expose privacy. The urinary catheter can be operated by the user himself or by other caregivers.

[0078] The lubricant is pre-stored directly in the liquid storage chamber 4 above the catheter 1, eliminating the need for separately packaged lubricant. Simply turning the screw cap 1 (6) or screw cap 2 (8) releases the lubricant, quickly lubricating the catheter 1. This prevents splashing when the lubricant package is opened and reduces the possibility of contamination from the air after the package is opened. During lubrication, the user's hands do not touch the catheter 1. The catheter 1 is equipped with a telescopic assembly M, which can be extended or retracted by turning the handle 21. During insertion into the urethra, the catheter 1 is inserted contactlessly throughout the entire process, reducing the possibility of urethral infection. Furthermore, the catheter 1 is advanced gradually into the urethra, i.e., it is screwed into the urethra bit by bit, rather than being fully extended and exposed to the air. This avoids the possibility of infection caused by the entire catheter 1 being exposed to the air during insertion. After use, the catheter 1 is retracted and stored, resealed, and discarded, preventing waste from polluting the environment.

[0079] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other variations and improvements can be made without departing from the creative concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A portable intermittent lubricating urinary catheter, comprising a catheter, wherein the catheter is a hollow tube body, and a urinary catheter hole is provided on the front end wall of the catheter, characterized in that: Also includes: A telescopic assembly, wherein the rear end of the catheter is installed on the telescopic assembly, and the telescopic assembly can drive the catheter to extend out of the telescopic assembly or retract into the telescopic assembly. The telescopic assembly is provided with a drainage port, and when the catheter is extended out of the telescopic assembly, urine can enter the catheter through the urinary catheter hole and be discharged from the drainage port; The liquid storage component is detachably connected to the telescopic component and covers the front end of the catheter. The liquid storage component is provided with a liquid storage chamber for storing lubricant. When the liquid storage chamber is connected to the telescopic component, the lubricant in the liquid storage chamber soaks the lubricating catheter.

2. The portable intermittent lubricating urinary catheter according to claim 1, characterized in that: The telescopic assembly includes a lower sleeve, a guide sleeve and a sheath shaft. A rotary handle is provided at the rear end of the guide sleeve. The guide sleeve and the rotary handle form a step-like structure. The guide sleeve is a hollow tube body and is provided with a grid inside to form a plurality of drainage ports. The lower sleeve is sleeved outside the guide sleeve. A spiral groove is provided on the inner wall of the lower sleeve. The body of the guide sleeve is provided with a Z-shaped slide groove. A base with a stepped boss is provided at the rear end of the catheter. The base is installed on the sheath shaft. The sheath shaft is assembled in the Z-shaped slide groove of the guide sleeve and is adapted to the spiral groove of the lower sleeve. When the rotary handle is rotated, the catheter moves out or retracts relative to the guide sleeve along with the sheath shaft.

3. The portable intermittent lubricating urinary catheter according to claim 2, characterized in that: A protective plug is provided at the center of the grid, the protective plug protrudes toward the side where the catheter is located and is embedded in the base of the catheter. When the catheter moves outward relative to the guide cylinder along with the sheath shaft, the base is separated from the protective plug.

4. The portable intermittent lubricating urinary catheter according to claim 3, characterized in that: The surface of the catheter is covered with a hydrophilic coating, and the lubricant is a physiological saline solution.

5. The portable intermittent lubricating urinary catheter according to claim 4, characterized in that: The liquid storage component includes an upper sleeve and a screw cap, the two ends of the upper sleeve are respectively connected to the lower sleeve and the screw cap, a sealing sheet is provided on the side of the upper sleeve close to the lower sleeve, the screw cap, the upper sleeve and the sealing sheet form a liquid storage chamber, a cutting knife is provided in the screw cap, the cutting knife destroys the sealing sheet, and the lubricant in the liquid storage chamber enters the guide cylinder and soaks the lubricating conduit.

6. The portable intermittent lubricating urinary catheter according to claim 5, characterized in that: The sealing sheet is provided with a flange perpendicular to the sealing sheet on the side facing the screw cap one, and the cutting knife includes a curved surface, convex ridges and a pointed end, the curved surface and the convex ridges are connected to one side of the screw cap one, and the vertical surface of the convex ridges is connected to the curved surface, and the pointed end is provided at the end of the curved surface, and when the screw cap one is rotated, the pointed end squeezes and cuts the flange of the sealing sheet to destroy the sealing sheet.

7. The portable intermittent lubricating urinary catheter according to claim 6, characterized in that: The upper sleeve is provided with an outer wall and an inner wall on one side close to the lower sleeve, the outer wall is longer than the inner wall, and the outer wall is connected to the lower sleeve by threads, the inner wall is placed in the lower sleeve and contacts the guide cylinder, the sealing sheet is arranged on the inner wall of the upper sleeve, and a sealing ring is provided at the connection between the screw cover and the upper sleeve.

8. The portable intermittent lubricating urinary catheter according to claim 7, characterized in that: An anti-theft ring is provided at one end of the upper sleeve close to the lower sleeve, and a plurality of buckles are provided in the anti-theft ring. The upper sleeve is unscrewed and the buckles are squeezed by the thread to break the anti-theft ring.

9. The portable intermittent lubricating urinary catheter according to claim 4, characterized in that: The liquid storage component comprises an upper sleeve and a screw cap, the two ends of the upper sleeve are respectively connected to the lower sleeve and the screw cap, the upper sleeve is provided with an outer wall and an inner wall on the side close to the lower sleeve, the outer wall is longer than the inner wall, and the outer wall is connected to the lower sleeve by a thread, the inner wall is placed in the lower sleeve and contacts with the guide tube, the inner wall is connected with a convex disc, the inner wall is provided with a cavity door, the bottom of the cavity door extends to the top of the guide tube, the upper sleeve is provided with an arc-shaped groove on the side close to the screw cap, the screw cap is provided with a sheath rod matched with the arc-shaped groove, the top of the screw cap contacts with the convex disc, so that a liquid storage chamber is formed between the inside of the screw cap and the convex disc, the screw cap is rotated to separate from the convex disc, the lubricant enters the guide tube through the cavity door and soaks the lubrication guide tube, and the upper sleeve is provided with an anti-theft ring on one end close to the lower sleeve.

10. A method of using the portable intermittent lubricating urinary catheter according to claim 8, characterized in that: The following steps are involved: S1a: rotating the screw cap 1, the screw cap 1 is misaligned with the upper sleeve 1, the tip of the screw cap 1 extrudes and cuts the flange of the sealing sheet, destroying the sealing sheet, the lubricant in the liquid storage chamber enters the guide tube and soaks the lubricating conduit, and as the upper sleeve 1 rotates, the buckle of the anti-theft ring 1 is squeezed through the thread, so that the anti-theft ring 1 is broken; S2a: Continue to rotate the upper sleeve 1 to separate the upper sleeve 1 from the lower sleeve; S3a: rotating the rotary handle, the catheter moves outward along with the sheath shaft relative to the guide tube, the base is separated from the protective plug, and the interior of the catheter is connected with the drainage port; S4a: The catheter is gradually extended and gradually rotated into the user's urethra. Urine enters the catheter through the catheter hole and is discharged through the drainage port. The discharged urine can be directly connected to the toilet or connected to a urine collection bag through an intervention connector. S5a: After urination is completed, the handle is rotated in the direction, and the catheter retracts relative to the guide tube along with the sheath shaft, and the base of the catheter is engaged with the protective plug, and the upper sleeve 1 equipped with the screw cap 1 is sealed with the lower sleeve through threaded connection.

11. A method for using the portable intermittent lubricating urinary catheter according to claim 9, characterized in that: The following steps are involved: S1b: rotating the second rotary cover, the second rotary cover is separated from the convex circular sheet, and the lubricant in the liquid storage chamber enters the guide cylinder through the chamber door and soaks the lubricating conduit; S2b: rotating the second upper sleeve to separate the second upper sleeve from the lower sleeve, and as the second upper sleeve rotates, the second anti-theft ring is destroyed; S3b: rotating the rotary handle, the catheter moves outward along with the sheath shaft relative to the guide tube, the base is separated from the protective plug, and the interior of the catheter is connected with the drainage port; S4b: The catheter is gradually extended and gradually rotated into the user's urethra, and urine enters the catheter through the catheter hole and is discharged through the drainage port. The discharged urine can be directly connected to the toilet or connected to a urine collection bag through an intervention connector; S5b: After urination is completed, the handle is rotated in the direction, and the catheter retracts relative to the guide tube along with the sheath shaft, the base of the catheter is engaged with the protective plug, the upper sleeve 2 equipped with the screw cap 2 is sealed with the lower sleeve through a threaded connection, and the screw cap 2 is rotated to reset with the upper sleeve 2.

Images