A urinary catheter device for irrigation administration

Abstract

The application provides a catheterization device for irrigation administration, and relates to the field of medical devices, comprising a catheter and a liquid storage bag, the liquid storage bag is sleeved outside the catheter and is attached to the side wall of the catheter, a through hole connected to the inner cavity of the liquid storage bag is arranged on the side wall of the catheter, a blocking diaphragm capable of being broken under the action of a set pressure is arranged in the through hole, and a blocking piece is arranged in the inside of the catheter in the covering area of the liquid storage bag to block the catheter under the action of the pressure of the side wall of the catheter. In view of the problem that pollution is easily caused during the current bladder irrigation, the flushing liquid is pre-stored in the liquid storage bag, so that the liquid storage bag becomes a convenient flushing device. The flushing liquid is isolated from the outside world before flushing, so that pollution is avoided. When in use, the liquid storage bag is squeezed to make the flushing liquid pass through the through hole and be input along the catheter, so that the operation is convenient and secondary infection is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically to a urinary catheter device for flushing and administering medication. Background Technology

[0002] Patients with neurogenic bladder dysfunction who develop urinary retention generally need to use home-cleaning intermittent catheterization to urinate. Most patients are prone to recurrent urinary tract infections and cystitis, requiring bladder irrigation.

[0003] Currently, the common practice is to use a syringe to inject saline or diluted povidone-iodine solution into the bladder as an irrigation solution. However, this process is inconvenient, the related instruments are complex to operate, and improper operation by patients can easily lead to contamination, affecting the irrigation effect and even inducing infection. Existing technologies disclose related technical solutions that use a syringe or other temporary irrigation solution supply element connected to a catheter to inject the irrigation solution into the bladder under pressure, and then use the branching structure of the catheter to drain the irrigation solution. However, this requires drawing the irrigation solution with a syringe and connecting it to the catheter, and it is still difficult to ensure a clean environment during the operation, posing a risk of contamination. Existing irrigation-related instruments are not convenient to use, making it difficult for patients to perform irrigation at home, and they are prone to secondary infections. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies of existing technologies by providing a urinary catheter device for flushing and administering medication. By pre-storing the flushing fluid in a reservoir, it becomes a convenient flushing device. The flushing fluid is isolated from the outside environment before flushing, thus avoiding contamination. During use, squeezing the reservoir allows the flushing fluid to pass through the through-hole and be administered along the catheter. This method is convenient and avoids secondary infection.

[0005] The first objective of this invention is to provide a urinary catheterization device for flushing and administering medication, which employs the following approach:

[0006] It includes a urinary catheter and a reservoir. The reservoir is fitted over the urinary catheter and fits against the side wall of the urinary catheter. The side wall of the urinary catheter has a through hole that connects to the inner cavity of the reservoir. A sealing diaphragm that can rupture under a set pressure is installed in the through hole. The inside of the urinary catheter in the area covered by the reservoir has a barrier to seal the urinary catheter under the pressure of the side wall of the urinary catheter.

[0007] Furthermore, the sealing diaphragm is circumferentially connected to the sidewall of the through hole to seal the through hole, and the inner cavity of the reservoir is isolated from the internal channel of the catheter through the sealing diaphragm.

[0008] Furthermore, the through hole is located on the side wall of the catheter in the area covered by the reservoir, and the sealing diaphragm and the barrier element jointly bear the pressure.

[0009] Furthermore, the reservoir is connected to a buffer bladder with an elastic structure, and the inner cavity of the reservoir is in communication with the inner cavity of the buffer bladder.

[0010] Furthermore, the buffer bladder is fitted over the urinary catheter and arranged sequentially with the reservoir bladder along the axial direction of the urinary catheter.

[0011] Furthermore, the barrier includes corresponding elastic protrusions and elastic grooves, both of which are connected to the inner wall of the catheter to cooperate in blocking or disengaging from the open internal channel of the catheter under the action of the catheter.

[0012] Furthermore, the reservoir includes a reservoir cavity for containing liquid, the reservoir is arranged around the catheter, and the reservoir and the catheter are spaced apart at both ends along the axial direction.

[0013] Furthermore, the liquid reservoir is connected to a drug reservoir via a one-way connector.

[0014] Furthermore, the catheter is a flexible catheter, and both ends of the catheter are fitted with sealing caps.

[0015] Furthermore, the catheter sidewall is provided with multiple through holes, each through hole is equipped with a sealing diaphragm, and multiple spaced-apart barrier elements are provided inside the catheter along the axial direction of the catheter.

[0016] A second objective of this invention is to provide a urinary catheterization device for flushing drug delivery, employing the following solution:

[0017] It includes a urinary catheter and a reservoir. The reservoir is fitted over the urinary catheter and fits against the side wall of the urinary catheter. The side wall of the urinary catheter has a through hole that connects to the inner cavity of the reservoir. A sealing diaphragm that can rupture under a set pressure is installed in the through hole. The urinary catheter in the area covered by the reservoir has a thin-walled section that deforms and seals the urinary catheter under the pressure of the side wall of the urinary catheter.

[0018] Compared with the prior art, the advantages and positive effects of this invention are:

[0019] (1) In response to the problem of easy contamination during bladder irrigation, the irrigation fluid is pre-stored in the reservoir, making it a convenient irrigation device. The irrigation fluid is isolated from the outside world before irrigation, thus avoiding contamination. When in use, the reservoir is squeezed to allow the irrigation fluid to pass through the through hole and be introduced into the catheter. The operation is convenient and avoids secondary infection.

[0020] (2) A through hole is set on the catheter to establish a connection between the inner cavity of the reservoir and the internal channel of the catheter, so as to guide the pre-injected flushing fluid in the reservoir. The flushing fluid flows in the reservoir and the catheter, avoiding contact with the outside world. At the same time, the through hole is also located within the coverage area of ​​the catheter, forming an isolation relationship with the outside world, avoiding external contamination. The cleanliness of the flushing fluid is ensured during the process before it is used.

[0021] (3) A sealing diaphragm is used to isolate the urinary catheter from the reservoir, while the flushing fluid is sealed inside the reservoir, thus preventing contact with the outside world before use. When in use, the sealing diaphragm can rupture under a set pressure, thereby changing the isolation relationship between the urinary catheter and the reservoir to a connected relationship. The sealing diaphragm can be ruptured by squeezing the reservoir, which can meet the preservation requirements when not in use and the usage requirements of the flushing fluid.

[0022] (4) Connect and connect the buffer bladder to the reservoir bladder. The buffer bladder is an elastic bladder structure. When the reservoir bladder is compressed, some of the medicine in the reservoir bladder will overflow into the buffer bladder, thereby avoiding the rupture of the sealing diaphragm when not in use. When in use, it can prevent the flushing liquid in the reservoir bladder from entering the buffer bladder, and then rupture the sealing diaphragm by squeezing the reservoir bladder; avoid the pressure rupture of the reservoir bladder and sealing diaphragm during transportation or storage, and facilitate preservation.

[0023] (5) A barrier is installed inside the urinary catheter. The barrier can block or open the urinary catheter. When the barrier is subjected to pressure, it can close and block the urinary catheter, thereby disconnecting the internal channel of the urinary catheter at the location of the barrier. The flushing fluid can flow towards the opening at one end of the urinary catheter, thus preventing the leakage of the flushing fluid. At the same time, after the flushing fluid is infused, when the fluid in the bladder is drained, the barrier opens, thereby connecting the two ends of the urinary catheter and smoothly draining the fluid, improving the flushing efficiency and meeting the cleanliness requirements.

[0024] (6) The drug storage sac structure can separate the drug and the rinsing solution according to the needs, which is convenient for long-term storage and effectively maintains the efficacy. When using the drug, it is put into the rinsing solution to dissolve and mix, and then the solution is used for rinsing to meet the needs of rinsing administration. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of the urinary catheter device used for flushing and drug delivery in Embodiment 1 or 2 of the present invention.

[0027] In the diagram, 1. urinary catheter, 2. reservoir, 3. occlusive diaphragm, 4. through-hole, 5. barrier, 6. buffer sac, and 7. drug reservoir. Detailed Implementation

[0028] Example 1

[0029] In a typical embodiment of the present invention, such as Figure 1 As shown, a catheterization device for flushing drug delivery is provided.

[0030] like Figure 1 The catheter device shown is for bladder irrigation. It is equipped with a reservoir 2 connected to a catheter 1. The reservoir 2 is pre-filled with irrigation fluid for irrigation. It can improve the operability and portability of bladder irrigation, prevent irrigation fluid contamination, and thus avoid secondary infection caused by irrigation and drug administration.

[0031] like Figure 1 The catheterization device for flushing and administering medication mainly includes a catheter 1 and a reservoir 2. The reservoir 2 has an inner cavity for containing liquid. The catheter 1 is a flexible catheter with openings at both ends. The openings at both ends are connected through the internal channel of the catheter 1, which allows for the flow of liquid media.

[0032] The reservoir 2 is fitted outside the catheter 1, with its inner side fitting against the outer wall of the catheter 1, and the catheter 1 and reservoir 2 forming a communication relationship. A through-hole 4 is provided on the side wall of the catheter 1, connecting to the inner cavity of the reservoir 2. This through-hole 4 penetrates the side wall of the reservoir 2. It can be understood that the through-hole 4 on the catheter 1 establishes a connection between the inner cavity of the reservoir 2 and the internal channel of the catheter 1, allowing the flushing fluid to pass through the through-hole 4 into the catheter 1. The catheter 1 then guides the pre-injected flushing fluid into the reservoir 2, and the flushing fluid flows within the reservoir 2 and the catheter 1, preventing contact with the outside environment.

[0033] Meanwhile, the through hole 4 is also located within the coverage area of ​​the catheter 1, forming an isolation relationship with the outside world and avoiding external contamination. The flushing fluid is kept clean before it is used. Compared with the traditional syringe docking method, it reduces the manual operation process, thereby avoiding contamination and reducing the risk of secondary contamination.

[0034] While establishing a connection between the urinary catheter 1 and the reservoir 2, the through hole 4 also causes leakage of liquid from the reservoir 2, which is not conducive to the retention of flushing fluid in the reservoir 2. Therefore, in this embodiment, a sealing diaphragm 3 is installed in the through hole 4. The sealing diaphragm 3 can seal the through hole 4, thereby isolating the reservoir 2 from the internal channel of the urinary catheter 1. The sealing diaphragm 3 can rupture under a set pressure to establish a connection between the reservoir 2 and the urinary catheter 1.

[0035] Specifically, such as Figure 1 As shown, the sealing diaphragm 3 is circumferentially connected to the side wall of the through hole 4 to seal the through hole 4. The inner cavity of the reservoir 2 is isolated from the internal channel of the catheter 1 by the sealing diaphragm 3. The sealing diaphragm 3 is used to isolate the catheter 1 from the reservoir 2, and at the same time seals the flushing fluid in the reservoir 2, avoiding contact with the outside world before use, which facilitates storage and transportation, and makes it convenient for patients to store and use.

[0036] When in use, the sealing diaphragm 3 can rupture under a set pressure, thereby changing the isolation relationship between the catheter 1 and the reservoir 2 into a communication relationship; the sealing diaphragm 3 can be ruptured by squeezing the reservoir 2, which can meet the preservation requirements when not in use and the requirements for the use of flushing fluid.

[0037] During irrigation, one end of the catheter 1 is inserted into the bladder, while the other end and the reservoir 2 are both outside the body. After the sealing diaphragm 3 is ruptured to establish communication between the reservoir 2 and the catheter 1, the irrigation fluid in the reservoir 2 enters the catheter 1 and then flows into the bladder for irrigation. To prevent backflow of the irrigation fluid, a barrier 5 is installed inside the catheter 1. The barrier 5 can seal the catheter 1 under pressure, thus blocking the catheter 1 at this point. The irrigation fluid cannot be discharged from the body and can only flow into the bladder along the catheter 1 to complete the irrigation.

[0038] To facilitate operation, in this embodiment, the barrier 5 is arranged inside the catheter 1 within the area covered by the reservoir 2, so that when the reservoir 2 is squeezed, the flushing fluid is discharged, and the side wall of the catheter 1 simultaneously applies pressure to the barrier 5, so that the barrier 5 can block the catheter 1, thereby guiding the flushing fluid to meet the flushing requirements.

[0039] The barrier 5 can be an additional structure; the barrier 5 includes corresponding elastic protrusions and elastic grooves, both of which are connected to the inner wall of the catheter 1, so as to cooperate in blocking or disengaging from the open internal channel of the catheter 1 under the action of the catheter 1. The through hole 4 is located on the side wall of the catheter 1 in the area covered by the reservoir 2, and the sealing diaphragm 3 and the barrier 5 share the pressure.

[0040] A barrier 5 is installed inside the urinary catheter 1. The barrier 5 can block or open the urinary catheter 1. When the barrier 5 is subjected to pressure, it can close and block the urinary catheter 1, so that the internal channel of the urinary catheter 1 at the location of the barrier 5 is disconnected, and the flushing fluid can flow towards the opening at one end of the urinary catheter 1, thereby preventing the leakage of the flushing fluid.

[0041] Meanwhile, after the flushing fluid is infused, when the fluid in the bladder is drained, the barrier 5 opens, thus connecting the two ends of the catheter 1, allowing the fluid to be drained smoothly, improving flushing efficiency, and meeting the cleanliness requirements.

[0042] According to actual needs, multiple through holes 4 are provided on the side wall of the conduit, and a sealing diaphragm 3 is installed in each through hole 4 to improve the efficiency of flushing fluid discharge. At the same time, the rupture setting pressure of the sealing diaphragm 3 on each through hole 4 can be configured to different values. When different squeezing forces are applied, different numbers of through holes 4 can be connected, thereby achieving the effect of adjusting the flushing fluid discharge speed.

[0043] Along the axial direction of the catheter 1, multiple spaced-apart barrier elements 5 are provided inside the catheter 1. When subjected to pressure from the side wall of the catheter 1, all barrier elements 5 are closed, improving the sealing effect, reducing leakage of the flushing fluid when it is introduced into the bladder, and ensuring the flushing effect.

[0044] Since the urinary catheter used for flushing and drug delivery in this embodiment is a device for patients to use at home, it may need to be stored or transported for a certain period of time. In order to avoid the rupture of the fluid sac and the sealing diaphragm 3 due to pressure during transportation or storage, in this embodiment, the fluid sac 2 is connected to the buffer sac 6 with an elastic structure, and the inner cavity of the fluid sac 2 is in communication with the inner cavity of the buffer sac 6.

[0045] Meanwhile, the buffer bladder 6 is sleeved outside the urinary catheter 1 and is arranged sequentially with the reservoir bladder 2 along the axial direction of the urinary catheter 1. The buffer bladder 6 is connected to the reservoir bladder 2. The buffer bladder 6 is an elastic bladder structure. When the reservoir bladder 2 is compressed, some of the medicine in the reservoir bladder 2 will overflow into the buffer bladder 6, thereby preventing the sealing diaphragm 3 from rupturing when not in use.

[0046] Under normal conditions, the reservoir 2 is connected to the buffer 6. However, due to the elasticity of the buffer 6, the flushing fluid will not enter the buffer 6. When the reservoir 2 is subjected to a certain external force, some of the flushing fluid will enter the buffer 6 under the action of water pressure. After the external force is removed, the flushing fluid in the buffer 6 will return to the reservoir 2 under the action of the elastic contraction force of the buffer 6.

[0047] When in use, the flushing fluid in the reservoir 2 can be prevented from entering the buffer 6. For example, by pinching the connection between the reservoir 2 and the buffer 6, the connection can be blocked, and then the sealing diaphragm 3 can be ruptured by squeezing the reservoir 2. This avoids the reservoir 2 and the sealing diaphragm 3 from being ruptured under pressure during transportation or storage, and facilitates preservation.

[0048] It should be noted that the set pressure for rupturing the sealing diaphragm 3 is greater than the pressure of the flushing fluid in the reservoir 2 entering the buffer bladder 6, thereby ensuring that the buffer bladder 6 can play a buffering role and also avoiding the rupture of the sealing diaphragm 3 during the buffering process.

[0049] The rupture pressure of the sealing diaphragm 3 and the resistance triggered by the buffer bladder 6 can be set according to actual needs. It should be noted that the diameter of the through hole 4 can also be set to play a certain throttling role and avoid discomfort caused by the instantaneous water flow impacting the bladder when the sealing diaphragm 3 is squeezed and ruptured.

[0050] While meeting the need for bladder irrigation, it is sometimes necessary to carry a certain amount of medicine into the bladder through the irrigation fluid to achieve the purpose of irrigation and drug administration. To meet this need, the reservoir 2 is connected to the drug reservoir 7 through a one-way connector. The structure of the drug reservoir 7 can separate the medicine and the irrigation fluid according to the needs, which is convenient for long-term storage and effectively maintains the efficacy of the medicine.

[0051] When using the medication, dissolve and mix it in the flushing solution to form a solution for flushing. Due to the one-way connector, the mixed solution will not flow back into the storage sac 7, ensuring that the solution can be fully supplied to the bladder to meet the needs of flushing administration.

[0052] Combination Figure 1 The catheter 1 is a flexible catheter with sealing caps at both ends. The reservoir 2 containing flushing fluid is located at a suitable position in the middle of the catheter 1. The reservoir 2 is connected to the internal channel of the catheter 1 through the through hole 4 on the side wall of the catheter 1.

[0053] When in use, insert one end of the catheter 1 into the bladder. As urine flows out of the bladder, the sealing diaphragm 3 acts as an isolation barrier to prevent urine from contaminating the flushing solution. After the urine is discharged, squeeze the reservoir 2 by hand. The obstruction 5 at the middle of the catheter 1 closes, sealing the passage 4 between the catheter 1 and the external end of the catheter 1. The flushing solution in the reservoir 2 breaks through the sealing diaphragm 3 and is squeezed into the bladder, completing one bladder flush.

[0054] After releasing the reservoir 2, the barrier 5 is no longer under force and thus opens, allowing the catheter 1 to be fully open. The bladder irrigation fluid can then flow out of the catheter 1 and out of the body. The catheter 1 is then removed, completing this intermittent catheterization and bladder irrigation.

[0055] Example 2

[0056] In another embodiment of the present invention, such as Figure 1 As shown, a catheterization device for flushing drug delivery is provided.

[0057] The difference between this and Example 1 is the barrier inside the catheter; all other aspects are the same.

[0058] Specifically, in this embodiment, the barrier 5 can be formed by the inner wall of the catheter 1, and the catheter in the area covered by the reservoir 2 has a thin-walled section. The thin-walled section can deform under external force to block the catheter position corresponding to the thin-walled section.

[0059] When the reservoir 2 is subjected to external force, the sealing diaphragm 3 and the thin-walled segment are subjected to pressure. The reservoir 2 applies pressure to the catheter 1 through the flushing fluid, causing the thin-walled segment of the catheter 1 near the external end of the catheter 1 to be stressed and flattened under pressure, thereby cutting off the connection between the through hole 4 and the external end of the catheter 1, forming a sealing effect. When the reservoir 2 does not apply additional pressure to the catheter 1, the corresponding thin-walled segment of the catheter 1 returns to its original position, thus forming a connected state and meeting the need to drain the fluid in the bladder.

[0060] The structure in this embodiment reduces the complexity of the urinary catheter 1, making it easier to manufacture.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A catheterization device for flushing and administering medication, characterized in that, It includes a urinary catheter and a reservoir. The reservoir is fitted over the urinary catheter and fits against the side wall of the urinary catheter. The side wall of the urinary catheter has a through hole that connects to the inner cavity of the reservoir. A sealing diaphragm that can rupture under a set pressure is installed in the through hole. The inside of the urinary catheter in the area covered by the reservoir has a barrier to seal the urinary catheter under the pressure of the side wall of the urinary catheter. The through hole is located on the side wall of the catheter in the area covered by the reservoir, and the sealing diaphragm and the barrier share the pressure. The reservoir is connected to a buffer bladder with an elastic structure, and the inner cavity of the reservoir is in communication with the inner cavity of the buffer bladder. The barrier includes corresponding elastic protrusions and elastic grooves, both of which are connected to the inner wall of the catheter to cooperate in blocking or disengaging from the open internal channel of the catheter under the action of the catheter.

2. The urinary catheterization device for flushing and administering medication as described in claim 1, characterized in that, The sealing diaphragm is circumferentially connected to the sidewall of the through hole to seal the through hole, and the inner cavity of the reservoir is isolated from the internal channel of the catheter through the sealing diaphragm.

3. The urinary catheterization device for flushing and administering medication as described in claim 1, characterized in that, The buffer bladder is fitted over the urinary catheter and extends upward along the axial direction of the catheter, with the buffer bladder and reservoir arranged sequentially.

4. The urinary catheterization device for flushing and administering medication as described in claim 1, characterized in that, The reservoir includes a liquid-containing cavity surrounding the catheter, and the reservoir and the catheter are spaced apart at both ends along their axial direction.

5. The urinary catheterization device for flushing and administering medication as described in claim 1, characterized in that, The liquid reservoir is connected to a drug reservoir via a one-way connector.

6. The urinary catheterization device for flushing drug delivery as described in claim 1, characterized in that, The catheter has multiple through holes on its sidewall, each through hole is fitted with a sealing diaphragm, and multiple spaced-apart barrier elements are arranged inside the catheter along its axial direction.

7. A catheterization device for flushing and administering medication, characterized in that, It includes a urinary catheter and a reservoir. The reservoir is fitted over the urinary catheter and fits against the side wall of the urinary catheter. The side wall of the urinary catheter has a through hole that connects to the inner cavity of the reservoir. A sealing diaphragm that can rupture under a set pressure is installed in the through hole. The urinary catheter in the area covered by the reservoir has a thin-walled section that can deform and seal the urinary catheter under the pressure of the side wall of the urinary catheter. The reservoir is connected to a buffer bladder with an elastic structure, and the inner cavity of the reservoir is in communication with the inner cavity of the buffer bladder.

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