Negative pressure waterproof device for peritoneal dialysis catheter

Abstract

The technical problem to be solved by the utility model is to provide the negative-pressure waterproof device for the peritoneal dialysis catheter, and the negative-pressure waterproof device is simple to operate and can effectively reduce the risk that the membrane dialysis catheter is stained with water. The negative-pressure waterproof device for the peritoneal dialysis catheter comprises a containing shell, a connecting pipe is arranged at the lower end of the containing shell, a suction cup is arranged at the lower end of the connecting pipe, a negative-pressure pipe is arranged at the upper end of the shell, a one-way air inlet valve is arranged in the negative-pressure pipe, a sealing cover is arranged at the upper end of the negative-pressure pipe, and an air inlet pipe is arranged on the side wall of the negative-pressure pipe. A sealing plug is arranged on the air inlet pipe, the containing shell is vacuumized through the vacuumizing pump, in the vacuumizing process, the suction cup can be adsorbed to the skin, the waterproof purpose is achieved, after use, only the sealing plug needs to be opened, external air is sucked in through the air inlet pipe, and the suction force between the suction cup and the skin can be reduced accordingly; therefore, the peritoneal dialysis catheter can be taken out of the storage shell, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of peritoneal dialysis, and particularly relates to a negative pressure waterproof device for a peritoneal dialysis catheter. Background Art

[0002] Peritoneal dialysis is an effective renal replacement therapy for the treatment of end-stage renal disease. Peritoneal dialysis (PD) utilizes the property of the peritoneum as a semi-permeable membrane. Through the action of gravity, the prepared dialysate is regularly and periodically infused into the peritoneal cavity of the patient through a catheter. Due to the concentration gradient difference of solutes on both sides of the peritoneum, solutes on the high-concentration side move to the low-concentration side (diffusion effect); water moves from the low-osmotic side to the high-osmotic side (osmosis effect). By continuously replacing the peritoneal dialysis fluid, the purpose of removing metabolites, toxic substances in the body and correcting water and electrolyte balance disorders is achieved. The peritoneal dialysis catheter is the "lifeline" of peritoneal dialysis patients. The peritoneal dialysis catheter is divided into two types: temporary catheter and long-term catheter. For patients with long-term catheters, they will carry it on their bodies all the time. Carrying it for a long time will cause the risk of water entering the catheter or the outer end of the catheter when the patient takes a bath, leading to infection. The existing waterproof treatment method is generally to protect the peritoneal dialysis catheter with a very large surgical film (must be medical and within the validity period) before taking a bath, and tear off the film after washing. However, there is still a risk of getting wet during the operation process. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a negative pressure waterproof device for a peritoneal dialysis catheter, which is simple to operate and can effectively reduce the risk of the peritoneal dialysis catheter getting wet.

[0004] The technical solution adopted by the utility model to solve its technical problem is: a negative pressure waterproof device for a peritoneal dialysis catheter, which includes a storage shell. A connecting pipe is arranged at the lower end of the storage shell and the two are communicated with each other. A suction cup is arranged at the lower end of the connecting pipe and the two are communicated with each other;

[0005] A negative pressure pipe is arranged at the upper end of the shell and the two are communicated with each other. A one-way intake valve is arranged in the negative pressure pipe. A sealing cover is detachably arranged at the upper end of the negative pressure pipe;

[0006] An intake pipe is arranged on the side wall of the negative pressure pipe and the two are communicated with each other. The end of the intake pipe communicated with the side wall of the negative pressure pipe is located below the one-way intake valve. A sealing plug is detachably arranged at the end of the intake pipe away from the negative pressure pipe.

[0007] Furthermore, the storage shell is made of a medical-grade transparent soft material.

[0008] Furthermore, the sealing cover is sleeved on the upper end of the negative pressure tube, and a layer of mesh fiber membrane is arranged on the inner side wall of the sealing cover.

[0009] Furthermore, a bonding layer is arranged at the lower edge of the sucker, and a release paper is arranged below the bonding layer.

[0010] Furthermore, the bonding layer is made of a low-sensitivity adhesive.

[0011] Advantages of the utility model:

[0012] Insert the peritoneal dialysis catheter into the storage shell through the sucker and the connecting tube, so that the sucker is in contact with the skin. Then remove the sealing cover, connect the negative pressure tube to an external vacuum pump, and evacuate the storage shell through the vacuum pump. During the evacuation process, the sucker will adsorb on the skin to achieve the purpose of waterproofing. Since a one-way intake valve is arranged in the negative pressure tube, the air in the storage shell is pumped out and the outside air will not enter. Seal the negative pressure tube with the sealing cover to achieve all-round sealing, effectively reducing the risk of the membrane dialysis catheter getting wet. After taking a bath, just open the sealing plug, and the external air is inhaled through the air inlet pipe, so that the storage shell returns to the initial state, and the suction force between the sucker and the skin will also decrease, and then it can be easily removed, so that the peritoneal dialysis catheter is taken out of the storage shell, and the operation is simple. Description of the drawings

[0013] Figure 1 It is a schematic structural diagram of the negative pressure waterproof device for a peritoneal dialysis catheter of the utility model;

[0014] Markings in the figure: storage shell 1, connecting tube 2, sucker 3, sealing cover 4, air inlet pipe 5, sealing plug 6, negative pressure tube 7. Specific implementation manners

[0015] The following further describes the specific implementation manners of the utility model in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0016] It should be noted that for all directional indication terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the embodiments of the present application, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. It is only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly.

[0017] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0018] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0019] Such as Figure 1As shown in the figure, a negative pressure waterproof device for peritoneal dialysis catheter includes a storage housing 1. The shape of the storage housing 1 is generally rectangular, and the inner cavity size of the storage housing 1 is adapted to the size of the peritoneal dialysis catheter. A connecting pipe 2 is provided at the lower end of the storage housing 1 and the two are interconnected. The inner diameter of the connecting pipe 2 matches the diameter of the peritoneal dialysis catheter. Generally, the inner diameter of the connecting pipe 2 is greater than the diameter of the peritoneal dialysis catheter by a certain length to ensure that the peritoneal dialysis catheter can smoothly pass through the connecting pipe 2 and enter the storage housing 1. A suction cup 3 is provided at the lower end of the connecting pipe 2 and the two are interconnected. The suction cup 3 is generally in the shape of a horn with the small-diameter end facing upward, that is, the inner diameter of the small-diameter end of the suction cup 3 is the same as the inner diameter of the connecting pipe 2. The suction cup 3 is used to tightly adsorb to the skin after being evacuated to achieve the purpose of fixation and waterproofing;

[0020] A negative pressure pipe 7 is provided at the upper end of the housing and the two are interconnected. A one-way intake valve is provided in the negative pressure pipe 7. A sealing cover 4 is detachably provided at the upper end of the negative pressure pipe 7. The sealing cover 4 is used to seal the negative pressure pipe 7 to avoid getting wet. During use, the negative pressure pipe 7 is connected to an existing vacuum pump. The storage housing 1 is evacuated by the vacuum pump to form a negative pressure state, which can not only ensure that the suction cup 3 is adsorbed more firmly, but also protect the peritoneal dialysis catheter from getting wet. It should be noted that when the storage housing 1 is evacuated by the vacuum pump to form a negative pressure state, the storage housing 1 is not completely evacuated, and only need to ensure that the suction cup 3 is adsorbed firmly;

[0021] An intake pipe 5 is provided on the side wall of the negative pressure pipe 7 and the two are interconnected. The end of the intake pipe 5 connected to the side wall of the negative pressure pipe 7 is located below the one-way intake valve. A sealing plug 6 is detachably provided at the end of the intake pipe 5 away from the negative pressure pipe 7. After taking a bath, by removing the sealing plug 6, due to the pressure difference inside and outside, the external air will enter the negative pressure pipe 7 through the intake pipe 5, and then enter the storage housing 1 to restore it to the disposal state, and the suction force of the suction cup 3 will also decrease accordingly, making it convenient to remove.

[0022] In this embodiment, preferably, the storage housing 1 is made of a medical-grade transparent soft material. The transparent material can facilitate the observation of the internal situation, and the soft material can make the storage housing 1 closely adhere to the peritoneal dialysis catheter, further improving the waterproof performance.

[0023] In this embodiment, in order to further improve the sealing performance of the sealing cover 4, the sealing cover 4 is sleeved on the upper end of the negative pressure pipe 7. A layer of mesh fiber membrane is provided on the inner side wall of the sealing cover 4. The gap between the sealing cover 4 sleeve and the negative pressure pipe 7 can be further sealed through the mesh fiber membrane, thereby improving the sealing performance of the sealing cover 4.

[0024] In this embodiment, in order to facilitate the suction cup 3 to adsorb on the skin without falling off before the vacuum pumping operation, an adhesive layer is provided at the lower edge of the suction cup 3. Through the adhesive layer, the suction cup 3 can be adhered to the skin to prevent it from falling off. A release paper is provided below the adhesive layer to protect the adhesive layer from being contaminated and reduce its adhesiveness.

[0025] In this embodiment, in order to reduce the adverse reactions caused by the adhesive layer to the skin, the adhesive layer is made of a hypoallergenic adhesive.

[0026] Working principle: During use, first insert the peritoneal dialysis catheter into the storage housing 1 through the suction cup 3 and the connecting tube 2. Then remove the release paper, adhere the suction cup 3 to the skin through the adhesive layer. Then remove the sealing cap 4, connect one end of the negative pressure tube 7 to an existing vacuum pump, and at the same time ensure that the sealing plug 6 seals the air inlet tube 5. Then turn on the vacuum pump to pump vacuum. After the vacuum pumping is completed, install the sealing cap 4 on the negative pressure tube 7 to seal it. After use, dry the entire device, then remove the sealing plug 6, and the outside air enters the storage housing 1 to restore it to the initial state. Then remove the suction cup 3 and take out the peritoneal dialysis catheter.

[0027] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A negative pressure waterproof device for peritoneal dialysis catheter, characterized in that: It includes a storage housing (1), a connecting pipe (2) is provided at the lower end of the storage housing (1) and the two are in communication with each other, and a suction cup (3) is provided at the lower end of the connecting pipe (2) and the two are in communication with each other; A negative pressure pipe (7) is provided at the upper end of the housing and the two are in communication with each other. A one-way intake valve is provided in the negative pressure pipe (7), and a sealing cover (4) is detachably provided at the upper end of the negative pressure pipe (7); An intake pipe (5) is provided on the side wall of the negative pressure pipe (7) and the two are in communication with each other. The end of the intake pipe (5) communicating with the side wall of the negative pressure pipe (7) is located below the one-way intake valve, and a sealing plug (6) is detachably provided at the end of the intake pipe (5) away from the negative pressure pipe (7).

2. The negative pressure waterproof device for peritoneal dialysis catheter according to claim 1, wherein: The storage housing (1) is made of a medical-grade transparent soft material.

3. The negative pressure waterproof device for a peritoneal dialysis catheter according to claim 1, characterized in that: The sealing cover (4) is sleeved on the upper end of the negative pressure pipe (7), and a layer of mesh fiber membrane is provided on the inner side wall of the sealing cover (4).

4. The negative pressure waterproof device for peritoneal dialysis catheter according to claim 1, characterized in that: A bonding layer is provided at the lower edge of the suction cup (3), and a release paper is provided below the bonding layer.

5. The negative pressure waterproof device for a peritoneal dialysis catheter according to claim 4, characterized in that: The bonding layer is made of a low-sensitivity adhesive.

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