CN106861033A - A kind of antibacterial cap and its production method - Google Patents

Abstract

The invention discloses an antibacterial cap and a production method thereof, and belongs to the technical field of medical instruments. The technical scheme of the invention is as follows: the utility model provides an antibiotic cap, includes the cap body that elastic material made, the internal disinfection chamber that can hold and treat the disinfection joint that has of cap, the disinfection intracavity is provided with a plurality ofly and the internal wall connection of cap and has elastic protruding thing, a plurality of protruding things can with the disinfection intracavity treat that the disinfection connects the friction and get rid of the bacterium biomembrane, the opening part of the cap body be provided with treat the elasticity sealing washer of disinfection joint laminating. The production method is that the antibacterial cap in a normal use state is turned over and then integrally formed, so that the cost can be reduced, the product quality can be improved, the scheme provided by the invention can be suitable for various connectors, the disinfection effect is good, the use is convenient, and the good disinfection effect can be achieved by only one part.

Description

A kind of antibacterial cap and its production method

technical field

The invention relates to the technical field of medical devices, in particular to an antibacterial cap and a production method thereof.

Background technique

As we all know, in normal medical device use, there are many kinds of connectors, such as male luer connectors, female luer connectors, connectors for Luer lock or slide injections used on indwelling needles and extension tubes for drug infusion , with needle valve, heparin cap to connect hypodermic needle. Because there are many species of bacteria and molds in the hospital, and if they enter the patient's body they can cause serious complications, and the use of any invasive instrument, especially indwelling needles and other connectors, if not thoroughly sterilized or maintained sterile, these pathogens It is easy to enter the patient's body. When the joint is exposed to the air, the bacteria will produce a bio-protective film, which is like a protective cover, and the bacteria can multiply and spread inside. To effectively kill and destroy bacteria, biofilms must be penetrated or disrupted.

Current disinfection methods usually only rely on soaking the local area with alcohol, but cannot remove the biofilm by vigorous scrubbing. Usually, in a normal medical process, the hospital will connect the indwelling needle and the infusion set to the patient for infusion. Before connecting the extension tube, the joint must be completely sterilized to prevent bacteria from entering the catheter. This step is usually done with a cotton ball soaked in a disinfecting solvent (alcohol, povidone iodine, BZC, or other disinfectant). After a period of time, the extension needs to be replaced with a new extension tube. When it needs to be replaced, the current procedure is to first remove the extension tube from the indwelling needle, then clean the outer surface of the joint with a disinfectant, and then replace it with a new extension tube. If the joints are not thoroughly cleaned, the chances of infection increase. The same is true when connecting and disconnecting extension tubes from different connectors, such as needleless connectors, and if the heparin cap is not cleaned before injecting the drug with a needle or syringe.

There are currently no known products on the market that can definitively address the cleaning of multiple joints to meet national standards of care. As we all know, there are a variety of products on the market dedicated to the sterilization of various medical device connectors. For example, U.S. Patent 2008/0147047 describes an internally threaded cap that can be rotated onto a connector. Inside the cap, one or more pads filled with a sanitizing solution act on the interior of the connector. The cap can be maintained in place on the connector. superior. However, the invention is limited to connecting a threaded luer and requires the use of a second part (foam cushion) to keep the sanitizing solution in the cap. US Patent 2007/0225660 describes a cleaning kit that cleans the surface of the joint and can also be used as a cover for the joint. The pouch opens flat and can be squeezed between thumb and forefinger to enlarge. By design, this cleaning kit contains absorbent stretch cloth or non-stretch, absorbent cotton to hold the sanitizer. The entire cleaning bag may be elastic, or the outer layer may be elastic. The outer layer may be an elastic silicone sleeve, coated or injection molded, possibly injection molded with or onto the cloth. This invention is not integrated from the perspective of design and production, and requires two parts, which is difficult to produce and use. US Patent 2006/0030827 describes a connector cleaning device with a polypropylene brush head for cleaning the surface of a Luer connector. The structure of this US patent requires multiple parts and is relatively expensive to produce. These brush heads will not clean down to the inside diameter of the female screw fitting, and the device will not seal the fitting to retain the sanitizer inside. US Patent 8,069,523 is for a topical scrubbing brush consisting of a piece of foam that absorbs and retains an antiseptic. The perimeter of the foam must be sealed with other materials to prevent loss of the biocide. Also, a secondary process must be done to cut the foam block to the shape that fits the luer connector. This design still requires at least 2 materials and additional assembly steps. All of these processes increase production costs. The pads are shaped to apply force axially, but not circumferentially, so their ability to clean around the joint is limited.

Contents of the invention

In view of the deficiencies in the prior art, the main purpose of the present invention is to provide an antibacterial cap that can be applied to a variety of joints, has good disinfection effect, and is designed as a whole, easy to use, strong in cleaning ability, and low in production cost.

In order to achieve the above object, the present invention provides the following technical solutions: an antibacterial cap, comprising a cap body made of elastic material, the cap body has a disinfection cavity capable of accommodating joints to be sterilized, and multiple There are elastic protrusions connected to the inner wall of the cap. The plurality of protrusions can rub against the joints to be sterilized in the disinfection chamber and remove bacterial biofilms. Fitted elastic seal ring.

Preferably, the plurality of protrusions are arranged in a staggered arrangement in the disinfection chamber.

Preferably, the plurality of protrusions are arranged in parallel in the disinfection chamber.

Preferably, the shape of the protrusion is cylindrical, strip-shaped, hemispherical, conical, hollow cylindrical, truncated pyramid, polygonal, or a combination of the above shapes.

Preferably, the cap body, the plurality of protrusions and the elastic sealing ring are integrally formed.

Preferably, the plurality of protrusions are made of elastic resin or rubber or silica gel or a combination of the above materials.

Preferably, the outer surface of the cap is provided with anti-slip ribs.

A production method of an antibacterial cap, the cap body is in the first state when in normal use, and the shape of the cap body is in the second state after being turned over from inside to outside in the normal use state, the production method comprises the following steps,

1), first put the cap body in the second state, a plurality of protrusions, elastic sealing rings and anti-corrosion

The integrated molding of the ribs is set, and the integrated molding process uses injection molds, compression molds or insert molds

Or liquid silicone injection molding or transfer molding or a combination of the above molding types, at this time

The inside of the cap body has a cavity, and a plurality of protrusions are located on the outer surface of the cap body in the second state

On the surface, the anti-slip rib is located in the cavity;

2), carry out the outer surface of the cap body of the second state, a plurality of projections and the elastic sealing ring

make corrections;

3) Turn the cap body in the second state from the inside out to the cap body in the first state, modify the appearance of the anti-slip ribs, and a plurality of protrusions are located inside the cap body in the first state.

Preferably, the inner wall of the cavity in step 1) has a gradual gradient, and the diameter of the cavity opening is smaller than the diameter of the cavity bottom.

Preferably, the elastic sealing ring in step 1) has protrusions extending radially outward along the cap body in the second state.

Compared with the prior art, the present invention has the following advantages, the present invention can be manually compressed, strengthens the cleaning ability of the inner and outer surfaces of the joint, only needs one part, is easy to use, has scrubbing protrusions, and the protrusions can enter the joint, touch And scrub the small slits on the joints. The flexible wall of the cap body allows the user to rotate the protrusions inside the disinfection chamber axially and radially to scrub the surface of the joints. It can perform 360-degree disinfection on the joints to be disinfected, which can destroy the surface of the joints to be disinfected. Bacterial biofilm on joints, kills bacteria. And the solution of the present invention can be adapted to many types of fittings, access ports and valves. The protrusions provide access to the interior of some joints for cleaning and scrubbing, which is superior to currently available technology. While the antimicrobial cap is on the connector, it remains sterile until removed. When removed from the packaging, the antimicrobial cap is sterile on the outside and on the inside. The production is integrally formed, so the production is easier, the cost is lower, and the product uniformity is high.

Description of drawings

Fig. 1 is the front view of a kind of antibacterial cap of the present invention;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is the structural representation of antibacterial cap of the present invention and joint to be sterilized;

Fig. 4 is the sectional view of antibacterial cap of the present invention and joint to be sterilized when in use;

Fig. 5 is the schematic structural view of embodiment one when the antibacterial cap of the present invention is in step 1) in the production process;

Fig. 6 is the sectional view of Fig. 5;

Fig. 7 is the structural representation of embodiment two when being in step 1) in the production process of the antibacterial cap of the present invention;

Fig. 8 is a sectional view of Fig. 7;

Fig. 9 is the cross-sectional view of embodiment three when being in step 1) in the production process of the antibacterial cap of the present invention;

Fig. 10 is a cross-sectional view of Embodiment 4 of the antibacterial cap production process of the present invention at step 1).

Fig. 11 is a structural diagram (part) of a protrusion of the present invention;

Fig. 12 is a schematic cross-sectional view of an antibacterial cap in the prior art.

In the figure: 1, cap body; 2, disinfection cavity; 3, protrusion; 4, elastic sealing ring; 41, protrusion; 42, slope; 5, opening; 6, anti-slip rib; 7, joint to be disinfected; 71 , the bottom surface of the thread; 72, the side of the thread; 73, the top surface of the thread; 74, the top surface of the joint; 75, the top surface of the valve core inside the joint;

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

For joints used in the medical industry, because bacteria will produce a layer of biological protection film, this layer of biofilm is like a protective cover, and bacteria can multiply and spread inside. In order to effectively kill and destroy bacteria, the bacterial biofilm must be penetrated or disrupted. Most of the existing technologies only rely on alcohol to soak the local position, but cannot remove the biofilm by powerful scrubbing. Because the cotton pad is too "soft", it cannot scrub the surface of the joint vigorously, because the user can only apply force in the axial direction, and there will be little or no radial force, which results in the side of the joint not being cleaned. Most designs rely on threads to secure the antimicrobial cap, so that the connector and threads do not have good contact, and insufficient contact will result in inkilling bacteria and failing to destroy the bacterial film. Referring to Figure 12, and many sterilized instruments are hard on the outside, there is no way to apply more force in the axial direction to help scrub the surface of the joint. Other instruments have threads that interlock with the threads on the connector so that the user cannot scrub the outer surface of the connector as often as the care guide recommends. And once the product is exposed to the air, the outer surface of the existing product or the cotton pad will be contaminated with bacteria. The products of the prior art are uniformly sealed by the packing strips hanging on the infusion stand, and their appearance is exposed to airborne pollutants, so they are unclean.

In addition, the products currently on the market use antibacterial caps composed of multiple parts to cover the male or female screw connectors or needleless connectors, but they cannot thoroughly wipe the foreign matter inside the small slits.

As shown in Fig. 1 and Fig. 2, it is a kind of antibacterial cap of the present invention, and it comprises the cap body 1 that elastic material is made, has the sterilization cavity 2 that can accommodate joint 7 to be sterilized in the cap body 1, is provided with in the sterilization cavity 2 A plurality of protrusions 3 connected to the inner wall of the cap body 1 and having elasticity, the plurality of protrusions 3 can rub against the joints 7 to be sterilized in the disinfection chamber 2 and remove bacterial biofilms, and the opening 5 of the cap body is provided with The elastic sealing ring 4 to be bonded to the joint 7 to be sterilized.

The working principle of the antibacterial cap of the present invention is that the cap body 1 is made of elastic material, and there are many protrusions 3 in the disinfection chamber 2, and these protrusions 3 can help remove bacterial biofilms, and the structure of the antibacterial cap can be used for cleaning Male screw connectors, female screw connectors, needle and needleless connectors and other types of connectors such as heparin caps. In addition, antibacterial cap of the present invention can put antibacterial agent or alcohol, and antibacterial agent can be colloid, and these liquids can rely on the capillary action of protrusion 3 to maintain in the antibacterial cap, and this antibacterial cap can use tearable cover to seal or independently Small packages or independent unit packages, or multiple antibacterial caps are placed in the container together, and users can add disinfectants according to their preferences.

Specifically, before use, the antibacterial cap has been kept in a sterile state. When in use, first put the antibacterial cap on the joint 7 to be disinfected, and rotate it back and forth to have a scrubbing effect, and then clean the outside of the joint 7 to be disinfected. Sterilize the inside of the joint 7. The protrusions 3 on the inner surface of the cap body 1 can enter the joint, contact and scrub the small crevices on the joint, and caps with sponges or hard threads cannot do this. The flexible wall of the cap body 1 allows the user to axially and radially Firmly rotate the protrusion 3 inside the disinfection chamber 2 to scrub the appearance of the joint. Because the protrusion 3 is elastic, it can be contracted under the pressure of the finger, and can be recovered when the finger is removed, which strengthens the cleaning ability of the protrusion 3 on the surface of the joint 7 to be sterilized. The antibacterial cap itself can function as a cover, sealing the joint 7 to be sterilized, and acting as a bacterial barrier before removal.

During disinfection, the elastic sealing ring 4 can prevent external foreign matter such as bacteria and dust from entering, and can also prevent internal disinfectant from leaking out.

Referring to Fig. 3 and Fig. 4, this to-be-sterilized joint 7 is the threaded joint type commonly used in medical treatment, and it has thread, and wherein thread bottom surface 71, thread side 72, thread top surface 73 and joint top surface 74 and inside joint The top surface 75 of the valve core is in full contact with the protrusion 3. At this time, the user can hold the cap body 1 tightly to move axially and radially to completely destroy the bacterial biofilm, achieving a better disinfection effect than the prior art, and Elastic sealing ring 4 fits with the larger outer diameter connector 76 of the joint, which can prevent the entry of external foreign matter such as bacteria and dust, and also prevent the leakage of the disinfectant in the disinfection chamber 2 and prevent the disinfectant from volatilizing too quickly , can prolong the disinfection time. Similarly, the disinfection method of other types of joints 7 to be sterilized is the same as the above process.

Further, the arrangement of the plurality of protrusions 3 in the disinfection chamber 2 can be arranged in a staggered arrangement, or in a parallel arrangement, or in a random arrangement, which is not limited in this embodiment, but the staggered arrangement has Better disinfection and cleaning effect.

Preferably, the number of protrusions 3 may be several or dozens, which is not limited in this embodiment, but setting a larger number of protrusions 3 can be helpful for storing disinfectant. Referring to Fig. 11, the shape of the projection 3 is cylindrical or strip-shaped or hemispherical or conical or hollow cylindrical or truncated pyramid or polygonal or a combination of the above-mentioned several shapes, and the projection 3 can also be irregular shape, as long as it has the effect of wiping and cleaning the outer surface of joint 7 to be disinfected according to the present invention.

Similarly, the shape of the cap body 1 is not limited in this embodiment. The cross-sectional shape of the cap body 1 can be circular, square or irregular, as long as it has the function of the cap body 1 of the present invention.

Preferably, the plurality of protrusions 3 are made of elastic resin, rubber, silicone or a combination of the above materials. Wherein the production material of protrusion 3 can be identical with the production material of cap body 1, like this cap body 1, a plurality of protrusions 3 and elastic sealing ring 4 are integrally formed and set, convenient for production, reduce cost, certainly also can according to use environment Select different elastic materials to be made of joint 7 types to be sterilized.

Preferably, anti-slip ribs 6 are provided on the outer surface of the cap body 1 . The setting of the anti-slip ribs 6 plays an anti-slip effect, which can facilitate the user to take the cap body 1 for axial and radial movement.

The antibacterial cap of the present invention can be used to directly produce the antibacterial cap in the use state by means of one or more times of injection molding. Of course, in order to be more convenient and cost-saving when manufacturing antibacterial caps, the present invention proposes a production method for antibacterial caps. Referring to Figure 5 and Embodiment 1 of Figure 6, the cap body 1 is in the first state when it is in normal use. , the shape of the cap body 1 is in the second state after being turned over from inside to outside during normal use, and the production method includes the following steps,

1), first put the cap body 1 in the second state, a plurality of protrusions 3, and an elastic sealing ring 4 into

and anti-slip ribs 6 are integrally formed, and the integral forming process utilizes injection molding or compression molding or

Insert molding or liquid silicone injection molding or transfer molding or a combination of the above molding types,

At this time, the inside of the cap body 1 has a cavity 8, and a plurality of protrusions 3 are located in the cap of the second state.

On the outer surface of the body 1, the anti-slip ribs 6 are located in the cavity 8;

2), for the cap body 1 in the second state, a plurality of protrusions 3 and the outer surface of the elastic sealing ring 4

The table is amended;

3) Turn the cap body 1 in the second state from the inside out to the cap body 1 in the first state, modify the appearance of the anti-slip ribs 6, and a plurality of protrusions 3 are located inside the cap body 1 in the first state .

The production method provided by the present invention is compared with the method of directly forming and setting the antibacterial cap in one piece, because the mold is simpler and the cost of mold opening is lower, which reduces the production cost in a disguised form. Moreover, the appearance of the cap body 1 , the plurality of protrusions 3 and the sealing ring in the second state can be corrected, such as deburring treatment, which can improve the quality of the product and the identity of the finished product.

Referring to FIG. 6 , FIG. 8 and FIG. 10 , further, the inner wall of the cavity 8 in step 1) has a gradual gradient, and the diameter of the opening 5 of the cavity 8 is smaller than the diameter of the bottom of the cavity 8 . The purpose of setting in this way is to enable the cap body 1 in the second state to turn over into the cap body 1 in the first state from inside to outside, the inner diameter of the disinfection chamber 2 can be unified, and the diameter at the opening 5 of the cap body 1 is the same as that of the cap body. The diameters of the bottoms of 1 are basically the same to prevent deformation of the disinfection chamber 2.

In addition, the elastic sealing ring 4 in step 1) has a protruding body 41 extending radially outward along the cap body 1 in the second state. The function of the raised body 41 is to ensure that after the elastic sealing ring 4 is turned over, the thickness of the elastic sealing ring 4 increases and is not easily deformed. When in use, the raised body 41 can be in close contact with the joint 7 to be sterilized, ensuring the sealing effect .

Referring to the second embodiment of Figure 7 and Figure 8, the shape of the bulge 42 is as shown in the accompanying drawings, and the thickness of the elastic sealing ring 4 is relatively thick, which can make the deformation of the elastic sealing ring 4 after being turned over small, and the bulge 42 It can fit closely with the joint 7 to be sterilized to ensure sealing. Referring to the third and fourth embodiments of Fig. 9 and Fig. 10, for more convenient observation, Fig. 9 and Fig. 10 are cross-sectional views, and the cross-sectional shape of the raised body 42 in the third embodiment is an inverted "V" shape. Similarly, this The raised body 42 of this structure has less deformation after turning over, and the turning over is more labor-saving, and the raised body 42 can be closely attached to the joint 7 to be sterilized. In Embodiment 4, the connection surface between the raised body 42 and the cap body 1 is an inclined plane 42. The setting of the inclined plane 42 can facilitate the insertion of the joint 7 to be sterilized into the disinfection chamber 2, and make the bottom of the raised body 42 thicker, and the bottom of the raised body 42 The degree of deformation is reduced relative to the top of the bump 42, thereby enhancing the seal.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under 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 principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. an antibacterial cap, it is characterized in that: comprise the cap body that elastic material is made, have in the described cap body the disinfection cavity that can accommodate joint to be sterilized, be provided with in the described disinfection cavity and be connected with cap inner wall and have Elastic protrusions, the plurality of protrusions can rub against the joints to be sterilized in the disinfection chamber to remove bacterial biofilm, and the opening of the cap body is provided with an elastic sealing ring that fits the joints to be sterilized. 2. The antibacterial cap according to claim 1, wherein the plurality of protrusions are arranged in a staggered arrangement in the disinfection chamber. 3. The antibacterial cap according to claim 1, wherein the plurality of protrusions are arranged in parallel in the disinfection chamber. 4. An antibacterial cap according to claim 1, 2 or 3, characterized in that: the shape of the protrusion is cylindrical or strip-shaped or hemispherical or conical or hollow cylindrical or truncated pyramid-shaped or Polygonal shape or a combination of the above shapes. 5. The antibacterial cap according to claim 4, characterized in that: the cap body, the plurality of protrusions and the sealing ring are integrally formed. 6 . The antibacterial cap according to claim 1 , 2 or 3 , characterized in that: the material of the plurality of protrusions is elastic resin, rubber, silica gel or a combination of the above materials. 7. The antibacterial cap according to claim 1, characterized in that: the outer surface of the cap body is provided with anti-slip ribs. 8. A production method of an antibacterial cap, characterized in that: the cap body is in the first state when it is in normal use, and the shape of the cap body is in the second state after being turned from inside to outside when it is in normal use. The production method includes Following steps, 1) First, the cap body in the second state, a plurality of protrusions, elastic sealing rings and anti-slip ribs are integrally formed and set, and the integral forming process uses injection molding or compression molding or insert molding or liquid silicone injection molding or transfer molding or the above-mentioned Combination of various molding types, at this time, the inside of the cap body has a cavity, a plurality of protrusions are located on the outer surface of the cap body in the second state, and anti-slip ribs are located in the cavity; 2), modify the appearance of the cap body, the plurality of protrusions and the elastic sealing ring in the second state; 3) Turn the cap body in the second state from the inside out to the cap body in the first state, modify the appearance of the anti-slip ribs, and a plurality of protrusions are located inside the cap body in the first state. 9. The production method of an antibacterial cap according to claim 8, characterized in that: the inner wall of the cavity in step 1) has a gradual slope, and the diameter of the cavity opening is smaller than the diameter of the cavity bottom. 10 . The production method of an antibacterial cap according to claim 8 , wherein the elastic sealing ring in step 1) has a bulge extending radially outward along the cap body in the second state. 11 .