CN211486222U - Anti-pollution cap for central venous catheter - Google Patents

Abstract

The utility model discloses an anti-pollution cap for central venous catheter, including the body of cap form, the body includes open end and blind end, and the inner wall of body is equipped with the internal thread, the inner wall of body corresponds opening end department and is provided with sealed rubber ring, be provided with the aseptic cotton on the inner wall of body, the last antiseptic solution that soaks of aseptic cotton, the utility model discloses with the cooperation of central venous catheter, can avoid the dust to get into the gap between the two when sealing central venous catheter tip, disinfect the external screw thread of central venous catheter, need not to disinfect once more after taking off anti-pollution cap.

Description

Anti-pollution caps for central venous catheters

technical field

The utility model belongs to the field of medical supplies, in particular to an anti-pollution cap for a central venous catheter.

Background technique

A central venous catheter is a type of intravascular tube that is placed in a large vein in the human body. It is an indispensable vascular access in clinical medicine such as ICU and hemodialysis treatment. Central venous catheters are the lifeline of extracorporeal hemodialysis patients. At present, when hemodialysis patients are not on dialysis, the end of the catheter is sealed with a sealing cap. During hemodialysis treatment, the sealing cap is removed, and the central venous catheter is connected to the extracorporeal circulation pipeline.

For example, the Chinese Patent Application No. 2016211981142 discloses a multifunctional central venous catheter sealing cap, which is composed of a sealing cap body and a locking device, the locking device is hinged on the outer surface of the sealing cap body; the sealing cap body is a tubular structure, It has a closed bottom and an open mouth; the inner surface of the sealing cap body is cylindrical with internal threads, and part or all of its outer surface is evenly distributed with three arc-shaped grooves along the axial direction. The tube sealing cap provided by the utility model is provided with a locking device, the locking device is hinged on the outer surface of the tube sealing cap, and is composed of a support rod and a locking piece.

When it is matched with the central venous catheter, although an extension section is added to the mouth of the cap body, there is still a gap between the mouth and the central venous catheter, so that the dust enters the external thread of the central venous catheter from the mouth, and is During use, the outer thread of the central venous catheter still needs to be sterilized again, which causes unnecessary trouble, and the locking device has a complicated structure and is not easy to operate.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a method for sterilizing the outer thread of the central venous catheter, which can prevent dust from entering the gap between the two when the end of the central venous catheter is closed when it cooperates with the central venous catheter. No need to sterilize again after removing the anti-pollution cap.

In order to achieve the above purpose, the present invention provides the following technical solutions: an anti-pollution cap for a central venous catheter, comprising a cap-shaped body, the body includes an open end and a closed end, the inner wall of the body is provided with an internal thread, and the A sealing rubber ring is arranged at the corresponding opening end of the inner wall, and a disinfection cotton is arranged on the inner wall of the main body, and the disinfection cotton is soaked with a disinfectant.

Further, the open end of the body is provided with a removable cover.

Further, a silicone pad is arranged on the inner bottom surface of the body.

Further, the silica gel pad covers the bottom surface of the body in a disc shape.

Further, the silicone pad is annularly covered on the bottom surface of the body.

Compared with the prior art, the beneficial effect of the present utility model is: by setting the sealing rubber ring, when the anti-pollution cap is screwed on the outer thread of the central venous catheter, the sealing rubber ring can be tightly attached to the outer wall of the central venous catheter, so that the Close the gap between the two to prevent the patient from entering the gap during activities to prevent the external thread of the central venous catheter from being polluted. At the same time, the sterile cotton with disinfectant is directly attached to the external thread of the central venous catheter, and the sealing rubber ring With the cooperation of the anti-pollution cap, there is no need for secondary disinfection after the anti-pollution cap is removed; the setting of the cover can keep the anti-pollution cap in a sealed and clean state with the disinfection cotton before use, and at the same time, the disinfectant is kept sufficient, and the silicone pad can prevent the disinfectant from infiltrating the center. In the venous catheter, at the same time, in cooperation with the sealing rubber ring, the lower shell prevents the random rotation of the anti-pollution cap, and the anti-pollution cap is placed to fall. Of course, the sealing rubber ring alone can also play this role.

Description of drawings

FIG. 1 is a schematic cross-sectional structure diagram of an anti-pollution cap for a central venous catheter of the present invention.

Reference signs: 1. Body; 2. Internal thread; 3. Sterilized cotton; 4. Rubber sealing ring; 5. Cover; 6. Silicone pad.

Detailed ways

The embodiment of the anti-pollution cap for central venous catheter of the present invention will be further described with reference to FIG. 1 .

In the description of the present utility model, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", " Indicated orientation and positional relationships such as "inside", "outside", "clockwise" and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or It is implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Thus, the features defined as "first" and "second" may expressly or implicitly include one or more of the features. In the description of the present invention, "several" and "several" mean two or two more than one, unless otherwise explicitly and specifically limited.

An anti-pollution cap for a central venous catheter comprises a cap-shaped body 1, the body 1 includes an open end and a closed end, an inner wall of the body 1 is provided with an inner thread 2, and a sealant is provided on the inner wall of the body 1 corresponding to the open end Circle 4, the inner wall of the main body 1 is provided with a sterilizing cotton 3, and the sterilizing cotton 3 is soaked with a disinfectant.

As shown in FIG. 1 , the sealing rubber ring 4 in this embodiment is preferably silica gel.

Wherein the sterilizing cotton 3 is covered on the inner side wall of the entire body 1, preferably not covering the bottom surface; In this embodiment, it is preferable to have a plurality of anti-skid ribs on the outer wall of the main body 1 .

During use, the body 1 is completely fixed on the central venous catheter by matching the inner thread 2 of the body 1 with the outer thread of the central venous catheter. At this time, the sealing rubber ring 4 is at the front end of the body 1, connecting the body 1 to the central venous catheter. The gap between the catheters is blocked, and the disinfection cotton 3 is always attached to the outer thread of the central venous catheter during the tightening process of the body 1, that is, the outer thread of the central venous catheter is always sterilized. Before the body 1 is removed, it can be Always keep the central venous catheter clean; and the contact between the sealing rubber ring 4 in this embodiment and the outer wall of the central venous catheter can also increase the friction between the body 1 and the central venous catheter to prevent it from rotating.

In this embodiment, the open end of the main body 1 is preferably provided with a removable cover 5. The cover 5 makes the interior of the anti-pollution cap form a closed state, and the disinfectant content on the disinfection cotton 3 is stable and sufficient before the cover 5 is opened. , the disinfection cotton 3 is kept clean, and the cover 5 can be torn off for immediate use, which is a one-time medical product.

Of course, in this embodiment, the cover 5 may not be used, but a sealed bag may be used to package the body 1 , but this method is more troublesome to store.

In this embodiment, the inner bottom surface of the main body 1 is preferably provided with a silicone pad 6. After the main body 1 is completely screwed on the central venous catheter, the end of the central venous catheter will contact the silicone pad 6, and the inner and outer parts of the central venous catheter will Complete isolation to prevent any foreign body and disinfectant from entering the interior (inner wall) of the central venous catheter.

In this embodiment, the silicone pad 6 preferably covers the bottom surface of the main body 1 in a disc shape, and has good sealing performance. It is only necessary to ensure that the silicone pad 6 can be attached to the end of the central venous catheter.

Alternatively, the silicone pad 6 is annularly covered on the bottom surface of the main body 1. In this way, the silicone pad 6 uses less material, and the two sides of the silicone pad 6 are tightly attached to the main body 1 and the end of the central venous catheter to achieve a sealing effect.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (5)

1. an anti-pollution cap for a central venous catheter, comprising a cap-shaped body, the body comprising an open end and a closed end, and the inner wall of the body is provided with an inner thread, it is characterized in that: the inner wall of the body is provided with a seal at the corresponding open end The apron, the inner wall of the main body is provided with disinfection cotton, and the disinfection cotton is soaked with disinfectant. 2 . The anti-pollution cap for central venous catheter according to claim 1 , wherein the open end of the main body is provided with a removable cover. 3 . 3 . The anti-pollution cap for central venous catheter according to claim 2 , wherein a silicone pad is provided on the inner bottom surface of the main body. 4 . 4 . The anti-pollution cap for central venous catheter according to claim 3 , wherein the silicone pad covers the bottom surface of the body in a disc shape. 5 . 5 . The anti-pollution cap for central venous catheter according to claim 3 , wherein the silicone pad is annularly covered on the bottom surface of the body. 6 .

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