CN216877538U - A kind of peritoneal dialysis catheter protective cover - Google Patents

Abstract

The utility model relates to a peritoneal dialysis catheter protective sleeve which comprises a protective sleeve body, wherein through holes are formed in two ends of the protective sleeve body, and a cushion structure is arranged around the through holes, so that the two ends of the protective sleeve body are hermetically connected with a peritoneal dialysis catheter; the protective sleeve body is provided with air extraction equipment, the air extraction equipment comprises an air extraction cylinder which interacts with external gas, a piston rod is arranged on the air extraction cylinder, and a relatively sterile vacuum environment is formed by drawing the piston rod in the air extraction cylinder; the air pumping cylinder can be connected with negative pressure equipment or positive pressure equipment, and can be used for pumping or filling sterile gas into the air pumping cylinder by using an instrument so as to maintain continuous negative pressure or positive pressure; the protective sleeve body is also provided with a release sticker, and the protective sleeve body and the abdominal catheter can be stuck to the abdomen of a patient together; its advantages are: the end of the peritoneal dialysis catheter can be effectively fixed and protected, the occurrence of infection is reduced, a sterile, visible and waterproof closed environment is provided, and the peritoneal dialysis catheter can be protected in a whole process and continuously.

Description

A kind of peritoneal dialysis catheter protective cover

technical field

The utility model relates to the technical field of medical devices, in particular to a protective sleeve for a peritoneal dialysis catheter.

Background technique

Peritoneal dialysis is a well-established technique for the treatment of end-stage renal disease. Intraperitoneal infection is one of the common complications of peritoneal dialysis, which can lead to death in severe cases. According to medical practice, peritoneal dialysis requires aseptic manipulation. At present, when the peritoneal dialysis fluid is drained clinically, the connection between the short peritoneal dialysis tube and the peritoneal dialysis bag drainage tube is exposed about 2 cm, which increases the risk of infection. In the intermittent period of peritoneal dialysis, there is a gap between the iodine cap and the short tube of peritoneal dialysis, which cannot completely block dust and microorganisms. What's more, due to the friction of external force, the iodophor cap may loosen and fall off from time to time. On the one hand, the risk of infection is increased, and on the other hand, the short tube of peritoneal dialysis can no longer be used due to contamination and must be replaced with a new short tube, which increases medical expenses. In order to fix the peritoneal dialysis catheter, patients often make their own belts, and a pocket is attached to the waistband. When the peritoneal dialysis fluid is not drained, the end of the peritoneal dialysis catheter is placed in the pocket. The disadvantage of using a belt is that, on the one hand, it causes inconvenience for patients in daily bathing. On the other hand, because the pocket is not a one-time use sterile item, it is easy to accumulate microorganisms, which also increases the risk of infection. Chinese patent application: CN205994790U discloses an anti-pollution peritoneal dialysis short tube protection structure, the anti-pollution peritoneal dialysis short tube protection structure includes a sheath short tube and a sheath protective shell sleeved on the sheath short tube, The inner wall of the sheath protection shell is provided with an inner thread, and the inner thread is matched with the outer thread of the connecting end of the Y-shaped pipeline to realize threaded connection, and the inner wall of the sheath protection shell is attached for disinfection, cleaning and reinforcement. Connect the airtight circular iodophor cotton. This application is only suitable for peritoneal dialysis drainage, which prevents bacteria from entering the abdominal cavity from the connection between the short tube and the Y-shaped pipeline during peritoneal dialysis drainage, and reduces the risk of infection, but it only provides isolation protection. During the intermittent period of peritoneal dialysis, The junction of the iodophor cap is not protected, so its defect is that it cannot provide a full-course, continuous and effective protection.

Chinese patent application: CN208574064U discloses a peritoneal dialysis short tube, including a short tube body, a dialysate connecting tube and a protective sleeve, one end of the short tube body is provided with a connecting head, the connecting head is provided with an external thread, and one end of the dialysing liquid connecting tube is connected to the external The internal thread interface adapted by the thread; the protective sleeve is a plane structure when it is unfolded, and the plane structure includes the protective sleeve body and a tab at one end, and the protective sleeve body is provided with a bayonet adapted to the tab; the tab is connected to the protective sleeve through the connecting part The sleeve body is connected. The protective sleeve body and the connecting part are both rectangular. The long side of the bayonet is parallel to the long edge of the connecting part. Straight sides with parallel sides. The protective sleeve in this application can be put on the connection between the dialysate connecting tube and the connecting head, so as to prevent the external thread or short tube of the connecting head from being directly exposed to the air, causing bacteria or foreign objects to adhere to its wall; the protective sleeve is connected to the wall through the bayonet The form of the tab is snap-connected, which is easy to operate and can be stably placed on the short tube, but it also provides isolation protection. Full, continuous and effective protection.

In summary, there is an urgent need for a peritoneal dialysis catheter that can effectively fix and protect the end of the peritoneal dialysis catheter, reduce the occurrence of infection, provide a sterile, visible, and waterproof airtight environment, and can carry out the whole process, continuous and uninterrupted protection. protective case.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a kind of peritoneal dialysis catheter that can effectively fix and protect the end of the peritoneal dialysis catheter, reduce the occurrence of infection, provide a sterile, visible and waterproof airtight environment, and can carry out peritoneal dialysis with continuous and uninterrupted protection throughout the process. Conduit protector.

For realizing the above-mentioned purpose, the technical scheme that the utility model takes is:

A protective sleeve for a peritoneal dialysis catheter, comprising a protective sleeve body, the protective sleeve body is a hollow structure with sealing covers at both ends, a through hole in the center of the sealing cover, and a cushion structure around the through hole; The protective cover body is provided with an air suction device for sucking and exhausting the air in the protective cover body.

As a preferred technical solution, the air extraction device includes an air extraction cylinder, and the air extraction cylinder is used for interaction with external air.

As a preferred technical solution, a piston rod is arranged in the suction cylinder, and the piston rod is used for gas suction; the suction cylinder can also be connected with a negative pressure device or a positive pressure device.

As a preferred technical solution, the cushion structure around the through hole is composed of several independent cushions that are in close contact with each other.

As a preferred technical solution, the protective cover body is also provided with a release sticker.

As a preferred technical solution, the protective cover body further includes a fitting platform thereon, and the fitting platform is a flat surface for setting the release sticker.

As a preferred technical solution, the protective cover body includes a first protective cover and a second protective cover; the first protective cover is detachably connected to the second protective cover.

As a preferred technical solution, the first protective cover is detachably connected to the second protective cover through a plug.

As a preferred technical solution, a sealing gasket is provided at the connection between the first protective cover and the second protective cover.

The utility model has the advantages of:

1. The protective sleeve body of the peritoneal dialysis catheter protective sleeve is a hollow structure, and both ends are provided with a sealing cover. The center of the sealing cover is provided with a through hole. In the cavity of the protective sleeve body, a closed protective space is formed, so that when the peritoneal dialysis fluid is drained, the connection of the peritoneal dialysis catheter can be effectively protected to reduce the occurrence of infection; during the intermittent period of peritoneal dialysis, no peritoneal dialysis fluid drainage is performed It can also provide protection for the end of the peritoneal dialysis catheter to prevent infection at the joint between the iodophor cap and the threaded connection.

2. The protective cover body is provided with a suction device, which can suck and discharge the gas in the protective cover body, so that a sterile vacuum environment is formed in the above-mentioned protective space; the suction device includes a suction cylinder, which is located in the suction cylinder. Equipped with a piston rod, it is easy to operate and flexible to use; the suction cylinder can also be connected to a negative pressure device or a positive pressure device, which can realize the continuous maintenance of the sterile environment. Contaminated gas is more difficult to pass to ensure that there is no intra-abdominal infection caused by the contamination of the interface when the peritoneal dialysis fluid is drained;

3. The cushion structure around the through hole is composed of several independent cushions, which can be deformed arbitrarily, can flexibly adapt to the shape of the existing peritoneal dialysis catheter, and effectively close the inner cavity of the protective sleeve, Therefore, the use cost is greatly reduced, and there is no need to provide a matching peritoneal dialysis catheter.

4. The protective cover body is divided into a first protective cover and a second protective cover, which can be directly connected from the outside. Therefore, there is no restriction on the order of use, and it can be disassembled and replaced at any time, which greatly improves the flexibility of use.

5. The protective cover body is a disposable sterile item made of transparent and waterproof material, which can provide a sterile, visible and waterproof airtight environment.

6. The protective sleeve body is also provided with a release sticker, which can be directly attached to the skin, which is conducive to the proper fixation of the catheter.

Description of drawings

Accompanying drawing 1 is a three-dimensional schematic diagram of a protective sleeve of a peritoneal dialysis catheter of the present invention.

Figure 2 is a schematic diagram of the connection between a peritoneal dialysis catheter protective sleeve and a peritoneal dialysis catheter of the present invention.

Figure 3 is a partial schematic diagram of the existing peritoneal dialysis catheter and Y-shaped connecting pipe.

Figure 4 is a schematic diagram of the independent cushion structure of a peritoneal dialysis catheter protective sleeve of the present invention.

Figure 5 is a schematic diagram of the use state of a peritoneal dialysis catheter protective sleeve of the present invention.

6 is a schematic diagram of another peritoneal dialysis catheter protective sleeve of the present invention.

7 is a schematic diagram of another opening and closing method of another peritoneal dialysis catheter protective sleeve of the present invention.

Figure 8 is a schematic diagram of the fitting platform of a peritoneal dialysis catheter protective sleeve of the utility model.

Fig. 9 is another schematic diagram of the fitting platform of a peritoneal dialysis catheter protective sleeve of the utility model.

Detailed ways

The present utility model will be further described below in conjunction with the specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that those skilled in the art can make various changes or modifications to the present utility model after reading the contents recorded in the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

The reference numerals and components involved in the drawings are as follows:

1. Protective sleeve body 2. Peritoneal dialysis catheter 3. External connection equipment

11. Sealing cover 12. Through hole 24. Iodophor cap

14. Air extraction equipment 15. Independent cushion 16. First protective cover

17. Second protective cover 18. Latch 19. Gasket

21. Anti-skid handle 22. Grip 23. Threaded connection

141. Air extraction cylinder 142. Piston rod 25. Hinged device

10. Fit the platform

Example 1

Please refer to FIG. 1 , which is a three-dimensional schematic diagram of a protective sleeve for a peritoneal dialysis catheter of the present invention. A protective cover for a peritoneal dialysis catheter, comprising a protective cover body 1; the protective cover body 1 can be made of transparent and waterproof material, and can provide a sterile, visible and waterproof airtight environment; the protective cover body 1 is hollow structure, its two ends are provided with sealing covers 11, the center of the sealing cover 11 is provided with a through hole 12, the through hole 12 is surrounded by a cushion structure; the protective cover body 1 is provided with an air extraction device 14 for To suck and exhaust the air in the protective cover body 1 . Please refer to Figure 2. Figure 2 is a schematic diagram of the connection between a peritoneal dialysis catheter protective sleeve and a peritoneal dialysis catheter of the present invention. The protective sleeve body 1 is sleeved on the connection of the peritoneal dialysis catheter 2, and the gas of the protective sleeve body 1 is evacuated through the air pumping device 14, which can effectively prevent the peritoneal dialysis catheter 2 from being polluted at the connection, providing relatively bacterial environment.

In this embodiment, the protective sleeve body 1 is a cylindrical cavity structure, and two ends of the protective cover body 1 are provided with through holes 12 , the through holes 12 are arranged on the axis, and the diameter of the through holes 12 is smaller than that of peritoneal dialysis The diameter of the catheter 2, and the through hole 12 is surrounded by a soft cushion structure, such as elastic foam, so that the two ends of the protective sleeve body 1 are tightly connected with the peritoneal dialysis catheter 2, covering the connection of the peritoneal dialysis catheter 2 to provide relative protection. A sterile environment; the protective cover body 1 is provided with an air extraction device 14, and the air extraction device 14 includes an air extraction cylinder 141 that interacts with external air. Preferably, the air extraction cylinder 141 is provided with a piston rod on it. 142, through the pulling of the piston rod 142 in the suction cylinder 141, a relatively sterile vacuum environment is formed; in some preferred embodiments: the suction cylinder 141 can also be connected with a negative pressure device or a positive pressure device, that is, Negative pressure equipment or positive pressure equipment is connected with the suction cylinder 141. At this time, the suction cylinder 141 is a ventilation interface, which can be connected with some air delivery catheters, and the equipment can be used for suction or filling with sterile gas, such as purification by air filtration facilities. The treated gas, etc., can effectively prevent the free interaction between the gas in the inner cavity of the protective sleeve body and the external atmosphere, thereby further reducing the possibility of external contamination at the joint of the peritoneal dialysis catheter 2, and ensuring that the interface will not be polluted when the peritoneal dialysis fluid is drained. The advantage of causing abdominal infection is that it can maintain continuous negative pressure or positive pressure, which further ensures the effectiveness of the sterile environment; the surface of the protective cover body 1 is attached with a release sticker (not shown in the figure) , the protective cover body 1 can be attached to the patient's abdominal skin together with the abdominal catheter. It should be noted that, in conjunction with the protective effect of the protective cover body 1, when the peritoneal dialysis fluid drainage is not performed, it will not be used. The joint of the peritoneal dialysis catheter protected by the peritoneal dialysis catheter protective sleeve of the utility model is directly exposed to the air, which can simplify the operation steps without affecting the isolation ability of the pollution source, and solves the problem that when the peritoneal dialysis catheter is stored in the pocket, the Possible pollution problems, but in practical applications, in order to minimize the risk of infection, a sterile bag can still be used to encapsulate the peritoneal dialysis catheter and protective sleeve as a whole and fix it on the abdomen. This method of use does not mean The protective sleeve of the peritoneal dialysis catheter of the utility model does not have sufficient protective ability.

Please refer to FIG. 3 . FIG. 3 is a partial schematic diagram of an existing peritoneal dialysis catheter and a Y-shaped connecting pipe. Since the grip portion 22 of the existing peritoneal dialysis catheter 2 is provided with a non-slip handle 21, the surface of the grip portion 22 is irregular. Figure 4, Figure 4 is a schematic diagram of the independent cushion structure of a peritoneal dialysis catheter protective sleeve of the present invention, the cushion structure around the through hole 12 is composed of several independent cushions 15, that is, a complete soft cushion The pad structure is composed of several small independent soft pads 15. When the protective cover body 1 is connected to the grip portion 22, when encountering irregular protrusions or depressions, the independent soft pads 15 will be adaptively deformed, and will not be deformed. It will affect the adjacent cushion structure and ensure good sealing. This is only one of the solutions to solve the air tightness. You can also choose to avoid contact with irregular surfaces.

How to use the utility model: insert the peritoneal dialysis catheter 2 through the through hole 12 at one end of the peritoneal dialysis catheter protective cover of the present invention, and pass through the through hole 12 at the other end, so that one end is located in the grip of the peritoneal dialysis catheter 2 The other end of the holding part 22 is located on the iodophor cap 24, and a part of the holding part 22 and the iodophor cap 24 is located outside the protective sleeve of the peritoneal dialysis catheter, which is convenient for disassembly. Disinfection, such as applying iodophor, etc.; when using the peritoneal dialysis catheter 2 for drainage operation, directly hold the exposed end of the iodophor cap 24, and unscrew it. The schematic diagram of the use state of the peritoneal dialysis catheter protective sleeve, and then the external connection device 3 such as the peritoneal dialysis fluid bag Y-type connecting pipe is directly passed through the through hole 12 and connected to the threaded connection part 23 of the peritoneal dialysis catheter 2. At this time, the peritoneal dialysis catheter is connected. One end of the catheter protective sleeve is located on the surface of the external connection device 3, that is, the Y-shaped tube of the peritoneal dialysis fluid bag, so that the connection of the peritoneal dialysis catheter 2 is also in the inner cavity of the protective sleeve body 1; after the peritoneal dialysis catheter protective sleeve is installed, That is, the air in it can be sucked by using the suction device 14 to provide a sterile environment for the connection of the peritoneal dialysis catheter 2 to avoid contamination.

It should be noted that: the protective cover body 1 of the peritoneal dialysis catheter protective cover is a hollow structure, with sealing covers 11 at both ends, a through hole 12 in the center of the sealing cover 11, and a cushion structure around the through hole 12, The connection of the peritoneal dialysis catheter 2 can be covered in the cavity of the protective sleeve body 1 to form a closed protective space. The protective sleeve body 1 is provided with an air suction device 14, which can suck and discharge the gas in the protective sleeve body 1, A sterile vacuum environment is formed in the above-mentioned protective space; the air extraction device 14 includes an air extraction cylinder 141, and the air extraction cylinder 141 is provided with a piston rod 142, which is convenient to operate and flexible to use; the air extraction cylinder 141 can also be combined with the negative Pressure equipment or positive pressure equipment is connected, which can realize the continuous maintenance of the sterile environment and is safer; the cushion structure around the through hole 12 is composed of several independent cushions 15, which are more suitable for existing abdomens of different shapes. The transparent catheter 2 effectively reduces the use cost and improves the flexibility of use; the protective sleeve body 1 is also provided with a release sticker, which can be directly attached to the skin to facilitate the fixation of the catheter.

Example 2

Please refer to FIG. 6, which is a schematic diagram of another peritoneal dialysis catheter protective sleeve of the present invention. This embodiment is basically the same as Embodiment 1, except that the protective cover body 1 includes a first protective cover 16 and a second protective cover 17 , the first protective cover 16 and the second protective cover 17 Six sets of latches 18 are detachably connected. In some embodiments, a sealing gasket (not shown in the figure) may also be provided at the connection between the first protective cover 16 and the second protective cover 17 along the joint edge. The sealing gasket is an existing conventional sealing technology. When in use, it is not necessary to pass through the through hole 12 at one end to the other end. The sealing gasket 19 can ensure the tightness of the first protective cover 16 and the second protective cover 17 after being connected. It should be noted that the protective cover body 1 is divided into a first protective cover 16 and a second protective cover 17, which can be accessed from the outside. Direct socket, therefore, there is no restriction on the order of use, and it can be disassembled and replaced at any time, which greatly improves the flexibility of use.

Please refer to FIG. 7 . FIG. 7 is a schematic diagram of another opening and closing method of another peritoneal dialysis catheter protective sleeve of the present invention. In some preferred embodiments, one side of the first protective cover 16 and one side of the second protective cover 17 are movably connected through a hinge device 25, such as hinge hinge, or directly through elastic The folded plastic edges are connected. In some embodiments, the first protective cover 16 and the second protective cover 17 do not need a latch to fix the two. Further, the sealing gasket can also be eliminated. For example, an adhesive such as double-sided tape is covered on the joint edge of the first protective cover 16 and the second protective cover 17, so as to directly realize the bonding and sealing of the two. It should be noted that, the technical features of the embodiments described in Examples 1-2 and the listed possible embodiments can be replaced and combined according to the actual situation, so they should also be within the protection scope of the present invention.

Example 3

Please refer to FIG. 8 . FIG. 8 is a schematic diagram of the fitting platform of a peritoneal dialysis catheter protective sleeve of the utility model. The present embodiment is basically the same as the previous embodiment, the difference lies in that, in order to cooperate with the use of the release sticker, the protective cover body 1 is provided with a fitting platform 10, and the fitting platform 10 is a release type The setting of the sticker provides a sticking plane, that is, the release sticker is easy to stick; The arc-shaped surface is attached to the protective cover body 1 , and the other attached surface is a flat surface, which is used for attaching to the skin.

It should be noted that the structure of the release sticker described in this embodiment is aimed at the protective cover body 1 having a curved surface structure, and when the protective cover body 1 is a cuboid, that is, the inner cavity formed by it is a cuboid cavity, Its outer surface is a plane structure, so it is equivalent to the said bonding plane 10, which can provide a bonding platform for the release sticker.

The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the principles of the present utility model, several improvements and supplements can also be made. These improvements and supplements are also It should be regarded as the protection scope of the present invention.

Claims (7)

1. A peritoneal dialysis catheter protective sleeve is characterized by comprising a protective sleeve body, wherein the protective sleeve body is of a hollow structure, sealing covers are arranged at two ends of the protective sleeve body, a through hole is formed in the center of each sealing cover, and a cushion structure is arranged around each through hole; the protective sleeve body is provided with air extraction equipment for sucking and exhausting air in the protective sleeve body.

2. The peritoneal dialysis catheter protective sheath of claim 1 wherein the suction apparatus comprises a suction canister for interaction with an outside gas.

3. The peritoneal dialysis catheter protective sheath of claim 2 wherein a piston rod is arranged in the suction tube, and the piston rod is used for sucking gas; the air suction cylinder can also be connected with negative pressure equipment or positive pressure equipment.

4. The peritoneal dialysis catheter protective sheath of claim 1 wherein the through hole has a cushion structure around it comprised of a plurality of individual cushions in close proximity.

5. The peritoneal dialysis catheter protective sheath of claim 1 wherein the protective sheath body further comprises a release liner disposed thereon.

6. The peritoneal dialysis catheter protection sheath of claim 5 wherein the protection sheath body further comprises a fit platform thereon, the fit platform being a flat surface for placement of a release sticker.

7. The peritoneal dialysis catheter protection sheath of claim 1 wherein the protection sheath body comprises a first protection sheath and a second protection sheath; the first protective sleeve is detachably connected with the second protective sleeve.

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