CN106861033B

CN106861033B - Antibacterial cap and production method thereof

Info

Publication number: CN106861033B
Application number: CN201710193465.7A
Authority: CN
Inventors: 文森特.雷斯科维奇; 任义唐; 李冰清
Original assignee: Wen SenteLeisikeweiqi
Current assignee: Wen SenteLeisikeweiqi
Priority date: 2017-03-28
Filing date: 2017-03-28
Publication date: 2020-04-03
Anticipated expiration: 2037-03-28
Also published as: CN106861033A

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

Antibacterial cap and production method thereof

Technical Field

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

Background

It is well known that in normal medical device use there are many kinds of connectors, such as male luer connectors, female luer connectors, connectors for luer locks or slip injections, needle valves, heparin caps for connecting hypodermic needles, used in drug infusion. Because there are many kinds of bacteria and molds in hospitals that can cause serious complications if they enter the patient, using any invasive instruments, especially indwelling needles and other connectors, these pathogens can easily enter the patient if sterilization is not complete or sterile. When the joint is exposed to air, bacteria create a biofilm, such as a protective cover, in which bacteria can multiply and spread. In order to effectively kill and destroy bacteria, it is necessary to penetrate or destroy the biofilm.

Current disinfection solutions typically only dip the local site with alcohol and do not provide vigorous scrubbing to remove the biofilm. Typically, during a normal medical procedure, a hospital connects an indwelling needle and an infusion set to a patient for infusion, and the adapter must be completely sterilized to prevent bacteria from entering the interior of the catheter prior to connection of the extension tube. This step is typically accomplished using cotton balls soaked in a disinfectant solvent (alcohol, iodophor, BZC, or other disinfectant). Over a period of time, the extension needs to be replaced with a new extension tube, and when replacement is required, the current procedure is to remove the extension tube from the indwelling needle, then clean the exterior of the connector with a disinfectant, and then replace the new extension tube. If the joint is not completely cleaned, the chance of infection increases. The same is true when the extension tube is connected and disconnected with different connectors, such as a needleless connector, and the same is true if the heparin cap is not cleaned before the injection of the medicine by a syringe needle or a syringe.

At present, no known product on the market can definitely solve the cleaning problem of various joints, so that the cleaning problem meets the national nursing standard. It is well known that there are a wide variety of products on the market that are dedicated to sterilization of various medical device joints. For example, us 2008/0147047 describes a cover with internal threads that can be screwed onto the connector, the cover having 1 or more pads filled with a disinfectant solution applied to the interior of the connector, the cover being retained on the connector. However, the invention is limited to threaded luer fittings and a second part (foam pad) is used to retain the antiseptic solution in the cap. Us patent 2007/0225660 describes a cleaning pack for cleaning the surface of a joint and also for use as a cover for the joint. The bag has a flat opening and can be enlarged by squeezing with thumb and forefinger. In terms of design, the cleaning bag contains an absorbent elastic cloth or an inelastic absorbent cotton storage disinfectant. The entire cleaning bag may be elastic, or the outer layer may be elastic. The outer layer may be an elastomeric silicone sleeve, coating or injection molded part, or may be injection molded with or onto the cloth. The invention is not integrated from the design and production point of view, needs two parts and has higher difficulty in production and use. Us patent 2006/0030827 describes a connector cleaning device with a polypropylene brush head to clean the surface of a luer connector. The structure of this us patent requires multiple parts and is relatively expensive to produce. These brush heads do not clean the inside diameter of the female luer and the device does not seal the connector and retain the disinfectant inside. U.S. patent 8069523 is a topical scrub brush that is made of a block of foam material that absorbs and retains a biocide. The perimeter of the foam must be sealed with other materials to prevent loss of the sterilant. And a secondary process must be performed to cut the block of foam to match its shape to the luer fitting. This design still requires at least 2 materials and additional assembly steps. All of these processes add to the cost of production. The cotton pad is shaped to apply force axially, but not circumferentially, so that the ability to clean the circumference of the joint is limited.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide the antibacterial cap which is suitable for various joints, has a good disinfection effect, is integrally designed, is convenient to use, has strong cleaning capability and is low in production cost.

In order to achieve the purpose, the invention provides the following technical scheme: 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.

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

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

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

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

Preferably, the material for making the plurality of protrusions is elastic resin or rubber or silica gel or a combination of the above materials.

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

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

1) firstly, the cap body in the second state, a plurality of bulges, an elastic sealing ring and a protector

The sliding rib is integrally formed, and the integral forming process utilizes an injection mould or a pressing mould or an embedding mould

Or liquid silicone injection or transfer molds or combinations of the above-mentioned molding types, in which case

The cap body has a cavity therein, and multiple protrusions are arranged on the outer surface of the cap body in the second state

On the surface, the anti-skid ribs are positioned in the cavities;

2) the appearance of the cap body, the plurality of protrusions and the elastic sealing ring in the second state is further improved

Correcting the lines;

3) and the cap body in the second state is turned into the cap body in the first state from inside to outside, the appearance of the anti-skid ribs is corrected, and the plurality of protrusions are positioned inside the cap body in the first state.

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

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

Compared with the prior art, the invention has the advantages that the invention can be manually compressed, the cleaning capability of the inner surface and the outer surface of the connector is enhanced, only one part is needed, the use is convenient, the scrubbing bulge is arranged, the bulge can enter the connector and contact and scrub the small slit on the connector, the flexible wall of the cap body can enable a user to axially and radially rotate the bulge inside the disinfection cavity to scrub the outer surface of the connector, the connector to be disinfected can be disinfected for 360 degrees, and thus, a bacterial biofilm on the connector to be disinfected can be damaged, and bacteria can be killed. And the solution of the invention can be adapted to various types of fittings, access ports and valves. The protrusions provide a cleaning and scrubbing path for the interior of some connectors, which is superior to the prior art. The antimicrobial cap, when on the adapter, remains sterile until removed. The antimicrobial cap is sterile on both the exterior and interior when removed from the package. The production is integrated, so that the production is easier, the cost is lower, and the product identity is high.

Drawings

FIG. 1 is a front view of an antimicrobial cap of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the construction of the antiseptic cap and the fitting to be sterilized of the present invention;

FIG. 4 is a cross-sectional view of the antiseptic cap and the fitting to be sterilized of the present invention in use;

FIG. 5 is a schematic structural diagram of the first embodiment of the present invention when the antibacterial cap is in step 1) in the production process;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic structural view of the second embodiment of the present invention at step 1) in the process of manufacturing the antiseptic cap;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a cross-sectional view of a third embodiment of the present invention at step 1) of the process for producing the antiseptic cap;

fig. 10 is a sectional view of the fourth embodiment at step 1) in the production process of the antibiotic cap in accordance with the present invention.

FIG. 11 is a structural view (in part) of a projection of the present invention;

fig. 12 is a schematic cross-sectional view of a prior art antiseptic cap.

In the figure: 1. a cap body; 2. a disinfection chamber; 3. a protrusion; 4. an elastic sealing ring; 41. a bump body; 42. a bevel; 5. an opening; 6. anti-skid ribs; 7. a joint to be disinfected; 71. a threaded bottom surface; 72. a thread flank; 73. a threaded top surface; 74. a joint top surface; 75. the top surface of the valve core inside the joint; 76. a connector; 8. a cavity.

Detailed Description

The invention will be further explained with reference to the drawings.

For joints used in the medical industry, bacteria can multiply and spread within the joint because they produce a biofilm, such as a protective cover. In order to effectively kill and destroy bacteria, it is necessary to penetrate or destroy the bacterial biofilm. In the prior art, the local position is mostly soaked by alcohol, and the biofilm can not be removed by powerful scrubbing. Because the cotton pad is too "soft" to effectively scrub the exterior of the joint, the user can only apply axial force, with little or no radial force, which results in the sides of the joint becoming uncleaned. Most designs rely on a threaded fastener to secure the antimicrobial cap so that the connection does not make good contact with the threads, and insufficient contact can result in the killing of the bacteria and the destruction of the bacterial membrane. Referring to FIG. 12, and many disinfection instruments are hard on the outside, there is no way to apply more force axially to help scrub the joint's outside. Other devices have threads that interlock with threads on the adapter so that the user cannot scrub the outer surface of the adapter as many times as recommended by the care guidelines. And the outer surface or cotton pad of the existing product is contaminated with bacteria once the product is exposed to the air. The prior art products are uniformly sealed by a wrapping strip that hangs from the pole and whose outer surface is exposed to airborne contaminants and therefore are not clean.

In addition, the current products on the market use an antibacterial cap composed of a plurality of parts on a male or female screw joint or a needleless joint, but cannot thoroughly wipe foreign substances inside a small slit.

As shown in fig. 1 and 2, an antibacterial cap of the present invention comprises a cap body 1 made of an elastic material, a disinfection chamber 2 capable of accommodating a joint 7 to be disinfected is arranged in the cap body 1, a plurality of elastic protrusions 3 connected with the inner wall of the cap body 1 are arranged in the disinfection chamber 2, the plurality of protrusions 3 can rub the joint 7 to be disinfected in the disinfection chamber 2 to remove a bacterial biofilm, and an elastic sealing ring 4 attached to the joint 7 to be disinfected is arranged at an opening 5 of the cap body.

The working principle of the antibacterial cap of the present invention is that the cap body 1 is made of elastic material, the sterilization chamber 2 is provided with a plurality of protrusions 3, the protrusions 3 can help to remove bacterial biofilm, and the structure of the antibacterial cap can be used for cleaning male screw joints, female screw joints, needle-free joints and other types of joints such as heparin caps. In addition, the present invention antibacterial cap can contain antibacterial agent or alcohol, the antibacterial agent can be colloid, the liquid can be maintained in the antibacterial cap by means of the capillary action of the projections 3, the present antibacterial cap can be sealed by a tearable lid or packaged in a small independent package or unit independent package, or a plurality of antibacterial caps can be put together in a container, and the user can add the disinfectant according to the preference.

Specifically, before use, the antibacterial cap is kept in a sterile state, and when the antibacterial cap is used, the antibacterial cap is firstly sleeved on the joint 7 to be disinfected and is rotated back and forth to have a scrubbing effect, so that the outer part of the joint 7 to be disinfected and the inner part of the joint 7 to be disinfected are cleaned. The protrusions 3 on the inner surface of the cap body 1 can enter the joint to contact and scrub small fine seams on the joint, which cannot be achieved by a cap with sponge or hard threads, and the flexible wall of the cap body 1 can enable a user to axially and radially rotate the protrusions 3 inside the disinfection cavity 2 to scrub the outer surface of the joint. Since the projections 3 are resilient and can be retracted under the pressure of the fingers, they can be removed and restored again, which enhances the cleaning ability of the projections 3 on the surface of the joint 7 to be sterilized. The antimicrobial cap itself may act as a cover, sealing the joint 7 to be sterilised, acting as a bacterial barrier before removal.

When the disinfection is performed, the elastic sealing ring 4 can prevent the entry of external foreign matters such as bacteria and dust, and can also prevent the internal disinfectant from leaking.

Referring to fig. 3 and 4, the joint 7 to be sterilized is a threaded joint of the type commonly used in medical treatment, and has threads, wherein the thread bottom 71, the thread side 72, the thread top 73, the joint top 74, and the joint inner valve core top 75 are all in full contact with the protrusion 3, at this time, a user can tightly hold the cap body 1 to perform axial and radial movements to thoroughly destroy bacterial biofilms, so that a better sterilization effect than the prior art is achieved, and the elastic sealing ring 4 is attached to the joint 76 with a larger outer diameter of the joint, so that the entry of external foreign matters such as bacteria and dust can be prevented, meanwhile, the leakage of the disinfectant in the sterilization cavity 2 can be prevented, the too fast volatilization of the disinfectant can be prevented, and the sterilization time can be prolonged. Likewise, the other types of joints 7 to be sterilized are sterilized in the same manner as described above.

Furthermore, the arrangement mode of the plurality of protrusions 3 in the disinfection chamber 2 can be staggered arrangement, parallel arrangement or irregular arrangement, and this embodiment is not limited, but the staggered arrangement mode has a better disinfection and cleaning effect.

Preferably, the number of the protrusions 3 may be several or several tens, and the present embodiment is not limited, but the provision of a larger number of the protrusions 3 can help to store the disinfectant. Referring to fig. 11, the shape of the protrusion 3 is cylindrical, strip, semispherical, conical, hollow cylindrical, truncated pyramid, polygonal or a combination of the above shapes, and the protrusion 3 may also be irregular, as long as the effect of wiping the outer surface of the joint 7 to be sterilized according to the present invention is achieved.

Similarly, the shape of the cap 1 is not limited in this embodiment, and the cross-sectional shape of the cap 1 may be circular, square, or irregular, as long as the cap 1 of the present invention functions.

Preferably, the material of the plurality of protrusions 3 is elastic resin or rubber or silicone or a combination of the above materials. The manufacturing material of the protrusion 3 can be the same as that of the cap body 1, so that the cap body 1, the protrusions 3 and the elastic sealing ring 4 are integrally formed, production is convenient, cost is reduced, and different elastic materials can be selected according to the use environment and the type of the joint 7 to be disinfected.

Preferably, the outer surface of the cap body 1 is provided with anti-slip ribs 6. The anti-skid ribs 6 are arranged to play an anti-skid role, and a user can conveniently take the cap body 1 to perform axial and radial movement.

The antibacterial cap can be directly produced in a using state by adopting a one-time or multi-time injection molding mode. Of course, in order to make the production of the antibacterial cap more convenient and cost-effective, the present invention provides a method for producing the antibacterial cap, referring to the first embodiment of fig. 5 and 6, the cap body 1 is in the first state in the normal use state, the shape of the cap body 1 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) firstly, the cap body 1 in the second state, a plurality of protrusions 3, an elastic sealing ring 4 and

and the anti-skid ribs 6 are integrally formed, and the integral forming process utilizes an injection mould or a pressing mould or

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

the cap body 1 has a cavity 8 therein, and the protrusions 3 are in the second state

On the outer surface of the body 1, the anti-skid ribs 6 are positioned in the cavities 8;

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

Correcting the table;

3) and the cap body 1 in the second state is turned into the cap body 1 in the first state from inside to outside, the appearance of the anti-skid ribs 6 is corrected, and the plurality of protrusions 3 are positioned inside the cap body 1 in the first state.

Compared with the mode of directly integrally forming the antibacterial cap, the production method provided by the invention has the advantages that the mold is simpler, the mold opening cost is lower, and the production cost is lowered through phase change. In addition, the outer appearance of the cap body 1, the plurality of protrusions 3, and the seal ring in the second state can be corrected, for example, by deburring, and the quality and the product uniformity of the product can be improved.

Referring to fig. 6, 8 and 10, further, the inner wall of the cavity 8 in step 1) has a gradual slope, and the diameter of the opening 5 of the cavity 8 is smaller than that of the bottom of the cavity 8. The purpose of this is to make the inside diameter of the disinfection chamber 2 uniform when the cap 1 in the second state is turned inside out into the cap 1 in the first state, and the diameter of the opening 5 of the cap 1 is substantially the same as the diameter of the bottom of the cap 1, preventing the disinfection chamber 2 from deforming.

In addition, the elastic sealing ring 4 in step 1) has a ridge body 41 extending radially outward along the cap body 1 in the second state. The effect of the uplift body 41 is that after the elastic sealing ring 4 is turned over, the thickness of the elastic sealing ring 4 is increased, the uplift body 41 is not easy to deform, and when the device is used, the uplift body 41 can be in close contact with the joint 7 to be sterilized, so that the sealing effect is ensured.

Referring to the second embodiment of fig. 7 and 8, the shape of the bulge body 42 is as shown in the drawings, the thickness of the elastic sealing ring 4 is thick, so that the deformation of the turned-over elastic sealing ring 4 is small, and the bulge body 42 can be tightly attached to the joint 7 to be sterilized, thereby ensuring the sealing property. Referring to the third embodiment and the fourth embodiment of fig. 9 and 10, for easier observation, fig. 9 and 10 are cross-sectional views, and the cross-sectional shape of the hump body 42 of the third embodiment is an inverted "V" shape, and similarly, the hump body 42 of this structure is less deformed and more labor-saving when turned over, and the hump body 42 can be tightly attached to the joint 7 to be sterilized. In the fourth embodiment, the connection surface of the protrusion 42 and the cap body 1 is the inclined surface 42, the inclined surface 42 can facilitate the insertion of the joint 7 to be sterilized into the sterilization chamber 2, the bottom of the protrusion 42 is thicker, and the deformation degree of the bottom of the protrusion 42 is lower than that of the top of the protrusion 42, so that the sealing performance is enhanced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. An antibacterial cap, which is characterized in that: the cap body of making including elastic material, the internal disinfection chamber that can hold and treat the disinfection joint that has of cap, it just has elastic protrusion to be provided with a plurality ofly to be connected with cap body inner wall in the disinfection chamber, a plurality of protrusions can connect the friction and get rid of the bacterium biomembrane with treating disinfecting in the disinfection chamber, the opening part of the cap body is provided with and treats the elasticity sealing washer of disinfection joint laminating.

2. An antiseptic cap as defined in claim 1, further comprising: the bulges are arranged in a staggered way in the disinfection cavity.

3. An antiseptic cap as defined in claim 1, further comprising: the bulges are arranged in parallel in the disinfection cavity.

4. An antiseptic cap as defined in claim 1, 2 or 3, wherein: the shape of the convex object is cylindrical, strip-shaped, hemispherical, conical, truncated pyramid-shaped, polygonal or the combination of the shapes.

5. An antiseptic cap as defined in claim 4, further comprising: the cap body, the plurality of protrusions and the sealing ring are integrally formed.

6. An antiseptic cap as defined in claim 1, 2 or 3, wherein: the plurality of bulges are made of elastic resin or rubber or silica gel or a combination of the elastic resin or the rubber or the silica gel.

7. An antiseptic cap as defined in claim 1, further comprising: the outer surface of the cap body is provided with anti-skid ribs.

8. A production method of an antibacterial cap is characterized in that: the cap body is in a first state when in a normal use state, and the shape of the cap body is in a second state after being turned over from inside to outside when in the normal use state,

1) firstly, the cap body in the second state, the plurality of protrusions, the elastic sealing ring and the anti-skid ribs are integrally formed, the integrated forming process utilizes an injection mould, a pressing mould, an embedding mould, a liquid silica gel injection mould, a transfer mould or the combination of various moulding types, a cavity is arranged in the cap body, the plurality of protrusions are positioned on the outer surface of the cap body in the second state, and the anti-skid ribs are positioned in the cavity;

2) correcting the appearances of the cap body in the second state, the plurality of bulges and the elastic sealing ring;

9. The method for producing an antibacterial cap according to claim 8, wherein: the inner wall of the cavity in the step 1) has a gradient gradually, and the diameter of the opening of the cavity is smaller than that of the bottom of the cavity.

10. The method for producing an antibacterial cap according to claim 8, wherein: the elastic sealing ring in the step 1) is provided with a bulge body which extends outwards along the radial direction of the cap body in the second state.