CN107198823B

CN107198823B - Sterilizing cap

Info

Publication number: CN107198823B
Application number: CN201610148773.3A
Authority: CN
Inventors: 董东生; 王茹; 杨东方; 张琳琳
Original assignee: Beijing Winsunny Harmony Science And Technology Co ltd
Current assignee: Beijing Winsunny Harmony Science And Technology Co ltd
Priority date: 2016-03-16
Filing date: 2016-03-16
Publication date: 2023-09-15
Anticipated expiration: 2036-03-16
Also published as: CN107198823A

Abstract

The invention provides a disinfection cap, which comprises a cap body and a sealing part, wherein the cap body comprises a cap body connecting port, a cap body bottom and a cap body side wall, the cap body bottom and the cap body side wall jointly enclose a cap body inner cavity, the cap body inner cavity stores volatile disinfectant, the sealing part seals the cap body connecting port to prevent the cap body inner cavity from contacting with the outside, at least one communicating port for communicating the cap body inner cavity with the outside is arranged on the cap body in order to prevent the disinfectant from entering a human blood circulation system through a medical joint and generating serious medical risks, a breathable film for ventilating and impermeable liquid is arranged at the communicating port, and the disinfectant steam can volatilize to the outside through the breathable film, so that the medical joint is disinfected and sterilized, and the disinfectant is in a sterile dry environment.

Description

Sterilizing cap

Technical Field

The invention relates to a disinfection cap, which is mainly used for disinfecting medical joints and belongs to the technical field of medical appliances.

Background

In clinic, medical connectors for infusion, blood transfusion, and intravascular imaging are often left and used multiple times to facilitate the infusion of different types of drugs into the human blood circulation system. However, existing medical connectors are not typically equipped with protective caps and are exposed to hospital contaminated air when the medical connector is in a non-connected state, causing contamination of the medical connector. At present, the conventional disinfection mode for medical joints is repeated disinfection by using iodophor or alcohol cotton balls, but the mode not only increases the workload of nursing staff, but also has the hidden trouble of incomplete disinfection and secondary pollution.

In order to solve the problems in the prior art, chinese patent CN 200820006083.5 discloses a luer connector protective cap which comprises a cap body and a disinfection plug adsorbed with volatile disinfectant, wherein the disinfection plug is arranged in a cavity of the cap body and is composed of sponge. When in use, the protective cap is sleeved on the medical connector in a rotating way, and the disinfectant in the disinfection plug volatilizes, so that microorganisms such as bacteria in the medical connector are killed, and the technical effect of disinfection is achieved. The protective cap has a plurality of technical problems in the use process: firstly, when the protective cap is inclined to the horizontal direction, disinfectant is easy to flow out of the inner cavity of the cap body, so that the use is inconvenient; secondly, the disinfection plug of the protective cap is composed of sponge with an adsorption function, fine fragments are easy to generate, the disinfectant remained on the surface of the medical connector is difficult to volatilize completely in the use process, and when the disinfectant remained on the surface of the medical connector and the sponge fragments enter a human blood circulation system through the medical connector, serious medical risks are brought; in addition, the microorganism attached to the outside of the connector of the protective cap is very easy to drop on the surface of the medical connector, so that secondary pollution of the medical connector is caused.

In summary, the conventional disinfection cap cannot perform the task of disinfecting the medical connector, and serious medical risks are brought. For this reason, medical instrument developers need to develop a safe and reliable medical joint sterilizing apparatus.

Disclosure of Invention

The invention provides a safe and reliable medical connector disinfection cap which not only can disinfect a medical connector, but also solves the technical problem of lower safety of the traditional disinfection cap.

The invention aims to provide a disinfection cap for disinfecting a medical connector, which comprises a cap body and a sealing part, wherein the cap body comprises a cap body connecting port, a cap body bottom and a cap body side wall, the cap body connecting port comprises an inner edge of the cap body connecting port, a cavity formed by the cap body bottom and the cap body side wall in a surrounding mode is a cap body inner cavity, the cap body inner cavity stores volatile disinfectant, the sealing part seals the cap body connecting port to prevent the cap body inner cavity from contacting with the outside, at least one communicating port for communicating the cap body inner cavity with the outside is arranged on the cap body, and a breathable film for ventilating and preventing liquid from being permeated is arranged at the communicating port. The medical connectors include clinical respiratory connectors, indwelling needle connectors, infusion connectors, hose connectors, rigid tubing connectors, monitoring instrument connectors, luer connectors, and the like. The cap body is made of medical grade plastic material through injection molding, and is in a hollow cup shape with an opening at the upper end. The sealing part can be an easily torn film made of medical grade composite materials, is sealed at the top end of the cap body connecting port by adopting a heat sealing process or a welding process, and can also be a part made of medical grade plastic materials by injection molding or medical grade rubber materials by vulcanization, and is in sealing connection with the cap body connecting port. The breathable film can be connected with the communication port by adopting a medical-grade adhesive, can also be connected with the communication port by adopting a welding process, and can be fixedly pressed on the communication port by adopting another part. When the medical connector is used, the sealing part is firstly removed, the medical connector is held by one hand, the cap body is held by the other hand, the medical connector enters the inner cavity of the cap body through the cap body connecting port, the medical connector is soaked in disinfectant in the inner cavity of the cap body, the disinfectant disinfects and sterilizes the medical connector, so that the disinfectant is not excessively remained on the medical connector, the disinfectant volatilizes to the outside through the communication port and the ventilation film in a steam mode when the disinfectant disinfects and sterilizes the medical connector, the surface of the medical connector is in a sterile and dry state, and the disinfection cap completes the task of disinfecting the medical connector. The breathable film can prevent residual disinfectant from entering the human body blood circulation system through the medical connector, and the most important use safety of the disinfection cap is realized.

The disinfection cap further comprises a protection part, wherein the protection part is in a hollow tubular shape with openings at two ends and is positioned outside the breathable film, and the protection part is used for protecting the breathable film to avoid damage of the breathable film. The protection part can be outwards extension of the cap body, can also be an independent part, and part top and cap body fixed connection, part bottom can also be equipped with the netted interlayer of one deck, this interlayer protection ventilated membrane prevents ventilated membrane damage.

The outside of the breathable film is provided with a sealing part for sealing the breathable film to the outside, and the sealing part prevents the inner cavity of the cap body from contacting with the outside through the breathable film through the communication opening. The sealing component is an easy-tearing film made of medical grade composite materials, and is sealed on a communication port outside the breathable film by adopting a heat sealing process or a welding process, or is sealed at the bottom end of the protecting component, in particular to the sealing component which is sealed outside the breathable film, so that the sealing component cannot pass through disinfectant steam. Before the disinfection cap is not used, the disinfectant in the inner cavity of the cap body cannot volatilize through the breathable film of the communication port. Of course, the sealing component can also be made of medical grade plastic material by injection molding or medical grade rubber material by vulcanization, and is in sealing connection with a communication port outside the ventilation membrane or in sealing connection with the bottom end of the protection component.

The sealing component is provided with a frangible part, and the sealing component is broken along the frangible part after being stressed, so that the inner cavity of the cap body is communicated with the outside through the communication opening and the breathable film. The easy-to-fold part is formed by thinning the local wall thickness of the sealing part, the sealing part can be broken by slightly applying force to the hand, so that the inner cavity of the cap body is communicated with the outside through the communication opening and the ventilation film, the easy-to-fold part can be convenient for medical staff to use the disinfection cap, and the easy-to-fold part has simple structure and lower processing cost.

The disinfection cap also comprises a sealing gasket, wherein the sealing gasket comprises a sealing gasket outer edge and a sealing gasket inner edge, the sealing gasket is in a hollow ring shape and is positioned at the cap body connecting port, and the sealing gasket inner edge is in sealing contact with the surface of the medical connector.

The cap body is provided with a containing groove for containing the sealing gasket, the containing groove comprises an inner surface of the containing groove, and the outer edge of the sealing gasket is in sealing contact with the inner surface of the containing groove. The sealing gasket is fixed in the accommodating groove in a conformal sealing way, and in order to strengthen the sealing performance between the sealing gasket and the accommodating groove, an annular bulge is further arranged on the surface, which is in contact with the sealing gasket, of the accommodating groove, and the annular bulge is inserted into the sealing gasket to be in interference sealing fit with the sealing gasket. When the medical connector enters the inner cavity of the cap body, the inner edge of the sealing gasket is in sealing contact with the surface of the medical connector, so that the disinfectant in the inner cavity of the cap body is prevented from flowing out from between the inner edge of the sealing gasket and the medical connector. In addition, in the process of sterilizing the medical connector by the disinfectant, when the disinfectant in the inner cavity of the cap body volatilizes completely through the ventilation film in a steam form through the communication port, the inner edge of the sealing gasket is in sealing contact with the surface of the medical connector, so that the medical connector is in a sterile and dry environment.

The accommodating groove is an annular groove formed by inwards recessing the inner surface of the side wall of the cap body. The accommodating groove is formed in the inner surface of the side wall of the cap body and is formed by an annular recess in the inner surface of the side wall of the cap body, and the sealing gasket is clamped into the accommodating groove to form sealing fit between the accommodating groove and the sealing gasket.

The containing groove is an annular groove formed by inwards sinking the upper end face of the cap body. The accommodating groove is formed in the upper end face of the cap body, the upper end face of the cap body is formed by annular depression in the direction of the bottom of the cap body, and the sealing gasket is located in the accommodating groove.

The disinfection cap further comprises a fixing part, the fixing part is positioned at the cap body connecting port, and the fixing part fixedly compresses at least a part of the sealing gasket inside the accommodating groove to prevent the sealing gasket from falling out of the inner cavity of the cap body. When the sealing gasket is positioned in the accommodating groove on the upper end surface of the cap body, the fixing part is required to press the sealing gasket, so that the sealing gasket is prevented from falling off. Specifically, when the medical connector enters and exits the inner cavity of the cap body of the disinfection cap, external force for driving the sealing gasket to move up and down is generated, and the fixing part is arranged to help fix the sealing gasket and prevent the sealing gasket from falling off.

The disinfection cap further comprises a barrier film, the barrier film comprises a barrier film outer edge, the barrier film is thin-film-shaped and is positioned at the cap body connecting port in a proper shape, the barrier film outer edge is connected with the inner edge of the cap body connecting port, and when the medical connector is screwed into the inner cavity of the cap body, the barrier film is extruded and spread by the medical connector. The barrier film is vulcanized by medical grade rubber materials or injection molded by medical grade thermoplastic elastomer materials. The medical connector is arranged on the cap body, and the cap body is arranged on the cap body.

The blocking film and the sealing gasket are connected into a whole, and the inner edge surface of the sealing gasket extends towards the center direction of the inner cavity of the cap body. The separation membrane and the sealing gasket are integrally molded or vulcanized, and the connection is beneficial to reducing procedures in the manufacturing process of the product and reducing the manufacturing cost of the product.

The thickness of the barrier film is gradually decreased from the outer edge of the barrier film to the central direction, the protruding portion of the barrier film in the central direction of the cap body is a portion easy to deform, when the portion easy to deform is extruded by the medical connector, the portion easy to deform is bent in the bottom direction of the cap body, and when the medical connector is pulled away from the inner cavity of the cap body, the portion easy to deform is bent in the opposite direction of the bottom of the cap body. The thickness of the outer edge of the barrier film is thicker than that of the central position of the barrier film, and the thicker outer edge of the barrier film can support the whole barrier film to prevent the disinfectant from passing through the cap body connecting port, and the barrier film at the central position is thinner, so that the medical connector can be smoothly inserted into the inner cavity of the cap body through the cap body connecting port. The thickness of the barrier film is gradually decreased from the outer edge of the barrier film to the center direction, so that the whole barrier film has good restorability. When the medical connector is pulled out from the inner cavity of the cap body through the cap body connecting port, the easily deformed part is elastically restored to the original state by the self, and the average wall thickness of the easily deformed part is smaller than that of the barrier film, so that the easily deformed part is facilitated to restore to the state of extending towards the center direction of the cap body, and the disinfectant is prevented from flowing out of the inner cavity of the cap body. When the medical connector is pulled out from the inner cavity of the cap body, but the medical connector and the cap body are not separated, the lower surface of the barrier film is attached to the surface of the medical connector, so that microorganisms attached to the outer part of the connecting port of the cap body are effectively prevented from falling on the surface of the medical connector.

The barrier film is provided with a tearing line for splitting the barrier film along the radial direction of the cap body connecting port, and when the medical connector enters the cap body inner cavity, the barrier film is extruded by the medical connector to be split along the tearing line. The tearing line is radially distributed in a ring shape around the center of the cap body, the tearing line can be a plurality of round holes or rectangular holes penetrating through the barrier film, the round holes or rectangular holes are connected to form a line shape, when the medical connector enters the inner cavity of the cap body, the barrier film is extruded by the medical connector to crack along the tearing line formed by the round holes or the rectangular holes, the tearing line divides the barrier film into a plurality of pieces, and the medical connector is convenient to enter the inner cavity of the cap body, so that the entering resistance is reduced. Of course, the tearing line can also be a plurality of special-shaped depressions which do not penetrate through the barrier film, the special-shaped depressions are connected to form a line, and the barrier film is extruded by the medical connector to be cracked along the tearing line formed by the special-shaped depressions.

The barrier film is composed of a plurality of films which are distributed around the inner edge of the cap body connecting port. The barrier film is evenly distributed by a plurality of diaphragms around the inner edge of the cap body connecting port in an annular mode, the whole body is located at the cap body connecting port in a conformal mode, when the medical connector enters the cap body inner cavity, the barrier film formed by the plurality of diaphragms is easily separated, and resistance encountered when the medical connector enters the cap body inner cavity is reduced.

A gap is arranged between two adjacent diaphragms of the barrier film, and the gap is not more than 1mm. When the barrier film is composed of a plurality of films, a gap can be arranged between the two films, the gap is favorable for reducing the resistance encountered when the medical connector enters the inner cavity of the cap body, but too large gap can overflow the disinfectant from the gap, and the effect of the barrier film in preventing the disinfectant from flowing out of the inner cavity of the cap body is lost. Therefore, the gap is generally not more than 1mm, when the cap body is inclined or inverted to the horizontal direction, the disinfectant in the inner cavity of the cap body cannot overflow from the gap between the two diaphragms, at the moment, the surface tension of the disinfectant, the supporting force of the barrier film on the disinfectant, the supporting force of the cap body on the disinfectant, the adhesive force between the disinfectant and the barrier film and the adhesive force between the disinfectant and the cap body are greater than or equal to the gravity of the disinfectant, and the resultant force of the five forces is in a balanced state.

The edge parts of two adjacent films of the barrier film are mutually overlapped, the overlapped parts of the films are mutually attached, and when the cap body is inclined or inverted to the horizontal direction, the films prevent disinfectant from flowing out of the inner cavity of the cap body. When the cap body is inclined or inverted to the horizontal direction, disinfectant flows to the direction of the barrier film due to gravity, and the overlapped parts of the two adjacent films are pressed by the gravity of the disinfectant to be more tightly attached, so that the barrier film formed by the films stably prevents the disinfectant from flowing out of the inner cavity of the cap body.

The upper surface of the barrier film and/or the inner edge surface of the sealing gasket are provided with a plurality of micro-protrusions and/or micro-depressions, and the micro-protrusions and/or micro-depressions increase the area of the disinfectant attached to the upper surface of the barrier film and/or the inner edge surface of the sealing gasket. The disinfectant is adhered to the outer surface of the miniature bulge or the inner surface of the miniature recess, the disinfectant has a disinfecting and sterilizing effect on the upper surface of the barrier film or the inner edge surface of the sealing gasket, and when the medical connector enters and exits the inner cavity of the cap body of the disinfecting cap, the upper surface of the barrier film or the inner edge surface of the sealing gasket is sterile, so that the surface of the medical connector cannot be polluted or bacteria can enter the blood circulation system of a human body through the medical connector.

The cap body side wall comprises a cap body side wall inner surface, and an inner thread which is connected with the external thread of the medical connector in a matching way is arranged on the cap body side wall inner surface. The internal thread is a part of the side wall of the cap body protruding outwards, is continuous or discontinuous, and can enable the connection between the disinfection cap and the medical connector to be more compact and reliable by adopting threaded fit.

The medical connector is characterized in that a separation part is arranged in the inner cavity of the cap body and extends towards the center direction of the cap body, the separation part separates the inner cavity of the cap body into an upper cavity of the cap body and a lower cavity of the cap body, the upper cavity of the cap body stores volatile disinfectant, the lower cavity of the cap body is communicated with the outside through a breathable film on a communication port, the separation part is provided with a weak connection part, and when the medical connector is screwed into the inner cavity of the cap body, the weak connection part of the separation part is extruded and broken by external force, and the upper cavity of the cap body is communicated with the lower cavity of the cap body. The weak connection part is formed by thinning the local wall thickness of the separation part, the separation part prevents the disinfectant from directly contacting with the breathable film, the ventilation property of the breathable film is affected, and the disinfectant pre-filled in the inner cavity of the cap body before use is prevented from volatilizing through the breathable film through the communication opening. When the medical connector is screwed into the inner cavity of the cap body, the separation part is extruded by the medical connector to break along the weak connecting part, and at the moment, the disinfectant flows into the lower cavity of the cap body from the upper cavity of the cap body, and the disinfectant can volatilize through the ventilation membrane at the communication port.

The separation part is inclined, and one end of the separation part, which is close to the cap body connecting port, is provided with a weak connecting part. Because of the limitation of the length of the medical connector, when the medical connector is screwed into the inner cavity of the cap body, one end of the separation part, which is close to the cap body connecting port, is extruded by the medical connector and is broken along the weak connecting part, and one end of the separation part, which is far away from the cap body connecting port, is not extruded by the medical connector and is connected with the inner surface of the side wall of the cap body well.

The separation part is provided with a protrusion protruding towards the direction of the cap body connection port, and a weak connection part is arranged at the connection position of the protrusion and the separation part. Also because of the limitation of the length of the medical connector, the distance between the medical connector and the separation part is shortened by the protrusion of the separation part, when the medical connector is screwed into the inner cavity of the cap body, the protrusion is extruded by the medical connector and is broken along the weak connecting part, and the separation part is extruded by the medical connector conveniently due to the structural design.

The separation part bulge is in a hollow cup shape with an opening at the top end and protrudes towards the direction of the cap body connecting port, and the hollow inside of the bulge increases the storage capacity of the cap body inner cavity for disinfectant. The cup-shaped partition member projections further increase the storage capacity of the disinfectant.

The technical effects are as follows:

the disinfectant enters the human blood circulation system through the medical connector to generate serious medical risks, so that the breathable film structure which is breathable and impermeable to liquid is arranged on the cap body of the disinfection cap, the disinfectant in the inner cavity of the cap body can volatilize to the outside through the breathable film in a vapor mode, the disinfectant is completely volatilized under the condition that the medical connector is completely disinfected, the disinfected medical connector is in a sterile and dry environment, the disinfectant is prevented from entering the human blood circulation system through the medical connector, and the serious medical risks brought by the disinfectant are eliminated.

The cap body of the disinfection cap utilizes the structural design of the barrier film to prevent the disinfectant from flowing out of the inner cavity of the cap body, replaces the function of sponge in the prior art, avoids sponge fragments from entering the human blood circulation system through the medical connector, and eliminates serious medical risks caused by the fragments; on the other hand, when the medical connector is pulled out from the inside of the disinfection cap, the barrier film is coated on the surface of the medical connector and is slowly conveyed to the medical connector to be completely separated from the disinfection cap, so that microorganisms attached to the outside of the cap body connector can be prevented from falling on the surface of the medical connector, and the disinfection and sterilization effects of the disinfection cap are ensured.

Drawings

Fig. 1: the three-dimensional cut-away structure schematic diagram 1 of the disinfection cap of the invention;

fig. 2: the medical connector of the disinfection cap is a three-dimensional structure schematic diagram;

fig. 3: the sectional structure of the disinfection cap is shown in a schematic drawing 1;

fig. 4: the three-dimensional cut-away structure of the disinfection cap is shown in a schematic diagram 2;

fig. 5: the partial three-dimensional sectioning and resolving structure schematic diagram 1 of the disinfection cap of the invention;

fig. 6: the partial three-dimensional sectioning and resolving structure schematic diagram 2 of the disinfection cap of the invention;

fig. 7: the sectional structure of the disinfection cap is shown in a schematic drawing 2;

fig. 8: the sectional structure of the disinfection cap of the invention is shown in a schematic diagram 3;

fig. 9: the use state of the disinfection cap is partially cut into a structural schematic diagram 1;

fig. 10: the use state of the disinfection cap is partially cut-away and structured as shown in the schematic drawing 2;

fig. 11: the three-dimensional cut-away structure schematic diagram 1 of the barrier film of the disinfection cap of the invention;

fig. 12: the three-dimensional cut-away structure of the barrier film of the disinfection cap is shown in a schematic drawing 2;

fig. 13: the three-dimensional cut-away structure of the barrier film of the disinfection cap is shown in a schematic drawing 3;

fig. 14: the three-dimensional cut-away structure of the barrier film of the disinfection cap is shown in a schematic drawing 4;

fig. 15: the three-dimensional sectioning and resolving structure schematic diagram of the disinfection cap is provided;

fig. 16: the partial three-dimensional sectioning and resolving structure of the disinfection cap is shown in a schematic drawing 3;

fig. 17: the three-dimensional cut-away structure of the disinfection cap of the invention is shown in a schematic diagram 3;

Fig. 18: the three-dimensional cut-away structure of the disinfection cap of the invention is shown in the schematic diagram 4;

fig. 19: the three-dimensional cut-away structure of the disinfection cap is shown in a schematic diagram 5;

fig. 20: the three-dimensional cut-away structure of the disinfection cap is shown as a schematic diagram 6;

fig. 21: the three-dimensional cutaway structure of the disinfection cap of the invention is shown in a schematic diagram 7;

1. a medical connector; 11. an external thread; 2. a cap body; 21. a cap body connection port; 211. the inner edge of the cap body connecting port; 22. the bottom of the cap body; 23. a cap side wall; 231. a receiving groove; 2311. the inner surface of the accommodating groove; 2312. an annular protrusion; 232. the inner surface of the side wall of the cap body; 233. an internal thread; 24. an inner cavity of the cap body; 241. a partition member; 2411. a weak connection portion; 2412. a protrusion; 242. a cap upper cavity; 243. a cap lower cavity; 25. a communication port; 27. the upper end surface of the cap body; 3. a disinfectant; 4. a barrier film; 42. a tear line; 43. a gap; 45. an easily deformable portion; 46. a membrane; 47. a micro-protrusion; 48. a micro-recess; 49a, the outer edge of the barrier film; 5. a sealing member; 51. a pull tab; 6. a breathable film; 61. a protection member; 611. an interlayer; 7. a sealing member; 71. an easy-to-fold portion; 72. a pull ring; 8. a sealing gasket; 82a, sealing the outer edge of the gasket; 82b, sealing the inner edge of the gasket; 9. a fixing member.

Detailed Description

Example 1:

as shown in fig. 1-2, a disinfection cap is used for disinfecting a medical connector 1, and comprises a cap body 2 and a sealing part 5, wherein the cap body 2 is made of high-density polyethylene material by injection molding, is hollow and cup-shaped in the whole with an opening at the upper end, and comprises a cap body connecting port 21, a cap body bottom 22 and a cap body side wall 23, the cap body connecting port 21 comprises a cap body connecting port inner edge 211, the cap body side wall 23 comprises a cap body side wall inner surface 232, the cap body bottom 22 and the cap body side wall 23 jointly enclose a cap body inner cavity 24, and a volatile disinfectant 3, in particular 75% alcohol, is arranged in the cap body inner cavity 24. The sealing part 5 is an easy-to-tear aluminum foil film and is sealed at the top end of the cap body connecting port 21 through a magnetic induction welding process, the sealing part 5 is provided with a pull tab 51 which is convenient for a user to hold, and the sealing part 5 is torn off when the sealing part is convenient to use.

As shown in fig. 3, the disinfection cap further includes a sealing gasket 8, the sealing gasket 8 is made of a medical grade rubber material by vulcanization, specifically a medical grade nitrile rubber material, the shore hardness of which is selected from one of 40HA, 60HA and 70HA, the sealing gasket 8 is in a hollow ring shape and is located at the cap body connection port 21, and the sealing gasket 8 includes a sealing gasket outer edge 82a and a sealing gasket inner edge 82b. The inner edge 82b of the sealing gasket is elastically deformed by itself to form a tight fit with the surface of the medical connector 1, and when the medical connector 1 is inserted into the cap cavity 24, the inner edge 82b of the sealing gasket prevents the disinfectant 3 in the cap cavity 24 from flowing out from between the inner edge 82b of the sealing gasket and the surface of the medical connector 1. The inner surface 232 of the side wall of the cap body is recessed inwards to form a circular accommodating groove 231, and the sealing gasket 8 is accommodated in the accommodating groove 231. In fig. 3, there is a certain gap between the sealing gasket 8 and the accommodating groove 231, and mainly for the purpose of showing the accommodating groove 231 and the sealing gasket 8 more clearly in the drawing, in practice, the sealing gasket 8 and the accommodating groove 231 should be in interference type sealing connection.

As shown in fig. 3, in order to avoid serious medical risks caused by the disinfectant 3 entering the human blood circulation system through the medical connector 1, the bottom 22 of the cap body is provided with a communication port 25 for communicating the inner cavity 24 of the cap body with the outside, the communication port 25 is provided with a breathable film 6 which is breathable and impermeable to liquid, the breathable film 6 is a PTFE film with a special coating, and is fixedly connected with the communication port 25 by adopting a welding process, and the breathable film 6 can volatilize the disinfectant 3 pre-filled in the inner cavity 24 of the cap body in a steam form, so that the medical connector 1 is in a sterile and dry environment, and in addition, the breathable film 6 can prevent external microorganisms and bacteria from entering the inner cavity 24 of the cap body. In order to avoid the damage of the ventilated membrane 6, the disinfection cap is also provided with a protection part 61, the protection part 61 is an outward extension of the bottom 22 of the cap body, is in a hollow tubular shape with two open ends, and surrounds the ventilated membrane 6 in a ring shape, so that the ventilated membrane 6 is in an intact state before the disinfection cap is not used. In order to avoid using the inside disinfectant 3 of cap body inner chamber 24 volatilize through the ventilation membrane 6 through the intercommunication mouth 25 before, ventilation membrane 6 outside is equipped with the sealing member 7 that will ventilate membrane 6 to outer confined, sealing member 7 is easy tearing aluminium foil membrane, seals in protection member 61 bottom through magnetic induction welding technology, for convenient to use, sealing member 7 and sealing member 5 pass through pull ring 72 and connect as an organic wholely, during the use, only need pulling pull tab 51, sealing member 5 and sealing member 7 are torn simultaneously, and cap body inner chamber 24 communicates with the external world through intercommunication mouth 25, and cap body connector 21 is opened, and the disinfection cap can be used.

Example 2:

as shown in fig. 15, a disinfection cap is used for disinfecting a medical connector 1, and comprises a cap body 2 and a sealing part 5, wherein the cap body 2 is made of medical polypropylene material by injection molding, is hollow and cup-shaped in the whole with an opening at the upper end, and comprises a cap body connecting port 21, a cap body bottom 22 and a cap body side wall 23, the cap body connecting port 21 comprises a cap body connecting port inner edge 211, the cap body side wall 23 comprises a cap body side wall inner surface 232, the cap body bottom 22 and the cap body side wall 23 jointly enclose a cap body inner cavity 24, a volatile disinfectant 3 is arranged in the cap body inner cavity 24, specifically 75% alcohol or 70% isopropanol is arranged in the cap body inner cavity 24, and the volatile disinfectant 3 accounts for 30% -80% of the volume of the cap body inner cavity 24. The sealing part 5 is an easy-to-tear aluminum foil film and is sealed at the top end of the cap body connecting port 21 through a magnetic induction welding process, in order to facilitate the holding of the sealing part 5 by a human hand, the sealing part 5 is provided with a pull tab 51 which is in shape with the human finger, and the pull tab 51 extends outwards locally for the outer edge of the sealing part 5. As shown in fig. 15, the inner surface 232 of the side wall of the cap body is provided with an internal thread 233 which is in fit connection with the external thread 11 of the medical connector 1, and the medical connector 1 is fixed inside the inner cavity 24 of the cap body by the mutual fit of the external thread 11 and the internal thread 233, so as to prevent the medical connector 1 from falling out of the inner cavity 24 of the cap body. In order to facilitate holding the cap body 2, the outer surface of the cap body side wall 23 is provided with anti-skid patterns, wherein the anti-skid patterns are uneven patterns for increasing friction force on the outer surface of the cap body side wall 23. Alternatively, the outer surface of the cap sidewall 23 is frosted or sandblasted, so as to enhance the anti-skid property of the outer surface of the cap sidewall 23.

As shown in fig. 15, the disinfection cap further includes a sealing gasket 8, the sealing gasket 8 is made of a medical grade rubber material by vulcanization, specifically a medical grade silicone rubber material, the shore hardness of which is selected from one of 30HA, 45HA and 60HA, the sealing gasket 8 is in a hollow ring shape and is located at the cap body connection port 21, and the sealing gasket 8 includes a sealing gasket outer edge 82a and a sealing gasket inner edge 82b. The upper end surface 27 of the cap body 2 is recessed inwards to form an annular accommodating groove 231, the accommodating groove 231 comprises an inner surface 2311 of the accommodating groove, the sealing gasket 8 is accommodated in the accommodating groove 231 in a conformal manner, and the outer edge 82a of the sealing gasket is in sealing contact with the inner surface 2311 of the accommodating groove. The inner edge 82b of the sealing gasket forms extrusion sealing with the surface of the medical connector 1 by virtue of self elastic deformation, and when the medical connector 1 is screwed into the cap body inner cavity 24, the disinfectant 3 in the cap body inner cavity 24 is prevented from flowing out from between the inner edge 82b of the sealing gasket and the surface of the medical connector 1. In order to prevent the sealing washer 8 from falling out of the inner cavity 24 of the cap body, the disinfection cap further comprises a fixing part 9, the fixing part 9 is made of medical polypropylene material by injection molding, the whole disinfection cap is hollow and annular, the part of the lower surface of the fixing part 9 protrudes outwards to form a bulge, a welding rib is arranged on the bulge, the angle of the welding rib is one of 45 DEG, 60 DEG, 90 DEG or 120 DEG, the fixing part 9 is fixedly connected with the bottom surface of the inner surface 2311 of the accommodating groove through an ultrasonic welding process, the sealing washer 8 is fixedly pressed inside the accommodating groove 231, and the sealing washer 8 is prevented from falling out of the inner cavity 24 of the cap body. The upper surface of the outer edge 82a of the sealing gasket is recessed inwards to form an annular groove, the fixing part 9 is accommodated in the groove of the outer edge 82a of the sealing gasket, and a through hole allowing the fixing part 9 to protrude through the outer edge 82a of the sealing gasket is formed in the bottom of the groove of the outer edge 82a of the sealing gasket. In order to enhance the tightness between the sealing gasket 8 and the accommodating groove 231, an annular protrusion 2312 is further provided on the bottom surface of the inner surface 2311 of the accommodating groove, and the annular protrusion 2312 is in interference sealing fit with the lower surface of the sealing gasket 8 in a line sealing manner.

As shown in fig. 15, in order to avoid serious medical risks caused by the disinfectant 3 entering the human blood circulation system through the medical connector 1, the bottom 22 of the cap body is provided with a communication port 25 for communicating the inner cavity 24 of the cap body with the outside, the communication port 25 is provided with a breathable film 6 which is breathable and impermeable to liquid, the breathable film 6 is a PTFE film with a special coating, and is fixedly connected with the communication port 25 by adopting a welding process, and the breathable film 6 can volatilize the disinfectant 3 pre-filled in the inner cavity 24 of the cap body in a steam form, so that the medical connector 1 is in a sterile and dry environment, and in addition, the breathable film 6 prevents external microorganisms and bacteria from entering the inner cavity 24 of the cap body. In order to avoid the damage of ventilated membrane 6, disinfection cap still includes protection component 61, protection component 61 adopts medical level polypropylene material to mould plastics and makes, is the inside hollow tubular of both ends opening, protection component 61 top and cap body bottom 22 fixed connection, the bottom is open to the outside. The top end of the protective component 61 is provided with a welding rib, the welding rib angle is one of 45 degrees, 60 degrees, 90 degrees or 120 degrees, and the top end of the protective component 61 is fixedly connected with the bottom 22 of the cap body in a sealing manner by adopting an ultrasonic welding process. In addition, the bottom 22 of the cap body is provided with a groove for accommodating the welding rib of the protecting member 61, so that the assembling and positioning of the protecting member 61 are facilitated. In order to avoid volatilization of the disinfectant 3 pre-filled in the inner cavity 24 of the front cap body through the ventilation membrane 6 by the communication port 25, the disinfection cap further comprises a sealing component 7, wherein the sealing component 7 is in an elongated shape as a whole, specifically, the bottom end of the protection component 61 is formed by extending downwards, and the bottom end of the protection component 61 can be closed. The seal member 7 and the protection member 61 are provided with a frangible portion 71 at a position where the seal member 7 is connected, and the frangible portion 71 is formed by thinning a part of the wall thickness of the seal member 7. When in use, the hand applies force to the sealing component 7, and the sealing component 7 can be broken along the frangible part 71, so that the inner cavity 24 of the cap body is communicated with the outside through the ventilation membrane 6 by the communication port 25, and the disinfectant 3 in the form of steam volatilizes to the outside through the ventilation membrane 6 by the communication port 25, thereby avoiding the disinfectant 3 from remaining on the medical connector 1.

As shown in fig. 11, the sterilization cap further includes a barrier film 4, and the barrier film 4 is entirely in the shape of a film including a barrier film outer edge 49a. As shown in fig. 13, in order to reduce the process steps in the manufacturing process and reduce the manufacturing cost of the product, the barrier film 4 is an extension of the inner edge 82b of the sealing gasket toward the center direction of the inner cavity 24 of the cap body, and the barrier film 4 and the sealing gasket 8 are integrally formed. In order to reduce the resistance of the medical connector 1 entering the cap body cavity 24, the barrier film 4 is composed of a plurality of films 46, the films 46 are distributed around the inner edge 211 of the cap body connection port, the whole is in a film shape, and the barrier film 4 composed of the films 46 is easier to prop open, so that the entering resistance is reduced. A gap 43 is provided between two adjacent membranes 46 of the barrier film 4, the gap 43 being 1mm. As shown in fig. 7 and 8, when the cap body 2 is tilted or inverted in the horizontal direction, the resultant force of the five forces is greater than or equal to the gravity of the disinfectant 3 itself, and the disinfectant 3 cannot flow out of the gap 43 of the barrier film 4, because of the surface tension of the disinfectant 3 itself, the supporting force of the barrier film 4 against the disinfectant 3, the supporting force of the cap body 2 against the disinfectant 3, the adhesion force between the disinfectant 3 and the barrier film 4, and the adhesion force between the disinfectant 3 and the cap body 2. As shown in fig. 7, 8, 9, 10 and 11, the average thickness of the barrier film 4 is 0.3mm, the thickness of the barrier film 4 decreases from the outer edge 49a of the barrier film to the center direction, the convex portion of the barrier film 4 in the center direction of the cap 2 is an easy-deformation portion 45, the wall thickness of the easy-deformation portion 45 is smaller than the average wall thickness of the barrier film 4, the easy-deformation portion 45 is easy to deform when being pressed by the medical joint 1, the wall thickness of the outer edge 49a of the barrier film is larger than the average wall thickness of the barrier film 4, and the easy-deformation portion 45 is easy to stretch, so that the easy-deformation portion 45 is recovered to be extended in the center direction of the cap 2. When the medical connector 1 is screwed into the inner cavity 24 of the cap body, the deformation part 45 is easily pressed by the medical connector 1 to be bent towards the bottom 22 of the cap body; when the medical connector 1 is unscrewed from the inner cavity 24 of the cap body, the easily deformed part 45 is driven to bend in the opposite direction of the bottom 22 of the cap body, and at the moment, the lower surface of the barrier film 4 is attached to the surface of the medical connector 1, so that microorganisms attached to the outside of the cap body connecting port 21 are effectively prevented from falling on the surface of the medical connector 1; when the medical connector 1 is unscrewed from the cap body inner cavity 24, the deformation part 45 is elastically restored by the medical connector.

As shown in fig. 13, the upper surface of the barrier film 4 is provided with a plurality of micro-protrusions 47 and micro-recesses 48, the surface of the inner edge 82b of the sealing gasket is provided with a plurality of micro-protrusions 47 and micro-recesses 48, the micro-protrusions 47 are the outwards protruding parts of the upper surface of the barrier film 4 and the outwards protruding parts of the inner edge 82b of the sealing gasket, the micro-recesses 48 are the inwards recessed parts of the upper surface of the barrier film 4 and the inwards recessed parts of the inner edge 82b of the sealing gasket, and the micro-protrusions 47 and the micro-recesses 48 increase the area of the disinfectant 3 attached to the upper surface of the barrier film 4 and the surface of the inner edge 82b of the sealing gasket. Before the sealing part 5 seals the cap body connecting port 21, the disinfectant 3 is pre-filled in the cavity gap between the upper surface of the barrier film 4 and the sealing part 5, the disinfectant 3 can be attached to the upper surface of the barrier film 4 and the surface of the inner edge 82b of the sealing gasket, and the disinfectant can perform a disinfecting and sterilizing function on the upper surface of the barrier film 4 and the surface of the inner edge 82b of the sealing gasket, so that microorganisms attached to the outside of the cap body connecting port 21 are prevented from falling on the surface of the medical connector 1.

Example 3:

as shown in fig. 16, a disinfection cap is used for disinfecting a medical connector 1 and comprises a cap body 2 and a sealing part 5, wherein the cap body 2 is made of medical polypropylene material by injection molding, is hollow and cup-shaped in the whole with an opening at the upper end, and comprises a cap body connecting port 21, a cap body bottom 22 and a cap body side wall 23, the cap body connecting port 21 comprises a cap body connecting port inner edge 211, the cap body side wall 23 comprises a cap body side wall inner surface 232, the cap body bottom 22 and the cap body side wall 23 jointly enclose a cap body inner cavity 24, a volatile disinfectant 3, specifically isopropanol with the concentration of 70%, is arranged in the cap body inner cavity 24, and the volatile disinfectant 3 accounts for 70% of the volume of the cap body inner cavity 24. As shown in fig. 7 and 8, the sealing member 5 is made of medical rubber by vulcanization, the sealing member 5 is elastically deformed by itself to form extrusion seal with the inner edge 211 of the cap body connection port, the sealing member 5 is further provided with a pull tab 51 which is shaped to fit with a finger of a person, and the pull tab 51 extends partially outwards from the outer edge of the sealing member 5. As shown in fig. 16, the inner surface 232 of the sidewall of the cap body is provided with an internal thread 233 which is cooperatively connected with the external thread 11 of the medical connector 1.

As shown in fig. 16, the disinfection cap further comprises a sealing gasket 8, the sealing gasket 8 is made of medical thermoplastic elastomer material by injection molding, the sealing gasket 8 is in a hollow ring shape and is positioned at the cap body connecting port 21, and the sealing gasket 8 comprises a sealing gasket outer edge 82a and a sealing gasket inner edge 82b. The upper end surface 27 of the cap body 2 is recessed inwards to form a ring-shaped accommodating groove 231, the accommodating groove 231 comprises an inner surface 2311 of the accommodating groove, the sealing gasket 8 is accommodated in the accommodating groove 231 in a conformal manner, and the outer edge 82a of the sealing gasket is in sealing contact with the inner surface 2311 of the accommodating groove. The inner edge 82b of the sealing gasket is elastically deformed by the inner edge 82b of the sealing gasket to form a tight fit with the surface of the medical connector 1, and when the medical connector 1 is screwed into the cap body cavity 24, the inner edge 82b of the sealing gasket prevents the disinfectant 3 in the cap body cavity 24 from flowing out from between the inner edge 82b of the sealing gasket and the surface of the medical connector 1. In order to prevent the sealing washer 8 from falling out of the inner cavity 24 of the cap body, the disinfection cap further comprises a fixing part 9, the fixing part 9 is made of medical polypropylene material by injection molding, the disinfection cap is hollow and annular as a whole, the outer side wall of the fixing part 9 is provided with an annular side wall bulge, the side wall of the containing groove 231 is provided with a side wall groove corresponding to the side wall bulge, and the sealing washer 8 is fixedly pressed inside the containing groove 231 by mutually concave-convex matching of the side wall bulge of the fixing part 9 and the side wall groove of the containing groove 231. The upper surface of the outer edge 82a of the sealing gasket is recessed inwards to form an annular concave ring for accommodating the fixing part 9.

As shown in fig. 12 and 16, the disinfection cap further includes a barrier film 4, the surface of the inner edge 82b of the sealing gasket extends towards the center direction of the inner cavity 24 of the cap body, the barrier film 4 and the sealing gasket 8 are integrally formed, and the whole barrier film 4 is in the shape of a film, including the outer edge 49a of the barrier film. When the cap 2 is tilted or inverted horizontally, the barrier film 4 prevents the disinfectant 3 from flowing out of the cap cavity 24. In order to reduce the resistance of the medical connector 1 entering the cap body cavity 24, the barrier film 4 is provided with a tearing line 42 along the radial direction of the cap body connecting port 21, the tearing line 42 is annularly distributed around the center of the cap body 2, the tearing line 42 is a plurality of micro round holes penetrating through the barrier film 4, the plurality of micro round holes are connected to form a line shape, when the medical connector 1 is screwed into the cap body cavity 24, the barrier film 4 is extruded by the medical connector 1 to crack along the tearing line 42, and the tearing line 42 divides the barrier film 4 into a plurality of blocks, so that the barrier film 4 is easier to prop open, and the entering resistance is reduced. Alternatively, the tear line 42 is a plurality of micro rectangular holes penetrating through the barrier film 4, and the plurality of micro rectangular holes are connected and then are linear.

As shown in fig. 4, the side wall 23 of the cap body is provided with a communication port 25 for communicating the inner cavity 24 of the cap body with the outside, a breathable film 6 which is breathable and impermeable to liquid is arranged at the communication port 25, and the breathable film 6 is a PTFE film with a special coating and is connected with the communication port 25 by adopting a welding process. In order to avoid the damage of the ventilated membrane 6, the protective member 61 further comprises a protective member 61, wherein the protective member 61 is in a hollow tubular shape with two open ends, one end of the protective member 61 is fixedly connected with the outer surface of the side wall 23 of the cap body through a concave-convex matching structure, and the other end of the protective member is open to the outside. In order to further prevent the damage to the air-permeable membrane 6, the protecting member 61 is provided with a net-shaped barrier 611 at an outer open end, and the barrier 611 can effectively prevent the damage to the air-permeable membrane 6. In order to avoid using the disinfectant 3 pre-filled in the inner cavity 24 of the front cap body to volatilize through the ventilation membrane 6 through the communication port 25, a sealing part 7 for sealing the ventilation membrane 6 outside is arranged outside the ventilation membrane 6, and the sealing part 7 is an easy-to-tear aluminum foil membrane.

Example 4

As shown in fig. 6 and 17, a disinfection cap is used for disinfecting a medical connector 1 and comprises a cap body 2 and a sealing part 5, wherein the cap body 2 is made of medical polypropylene material by injection molding, is hollow and cup-shaped in the whole with an open upper end, and comprises a cap body connecting port 21, a cap body bottom 22 and a cap body side wall 23, the cap body connecting port 21 comprises a cap body connecting port inner edge 211, the cap body side wall 23 comprises a cap body side wall inner surface 232, the cap body bottom 22 and the cap body side wall 23 jointly enclose a cap body inner cavity 24, a volatile disinfectant 3, in particular isopropanol with the concentration of 70%, is arranged in the cap body inner cavity 24, and the volatile disinfectant 3 accounts for 50% of the volume of the cap body inner cavity 24. The sealing part 5 is an easy-to-tear aluminum foil film, and the sealing part 5 is sealed at the top end of the cap body connecting port 21. As shown in fig. 6, the inner surface 232 of the cap side wall is provided with an internal thread 233 which is cooperatively connected with the external thread 11 of the medical connector 1, the internal thread 233 is in a discontinuous shape, and is formed by connecting a plurality of point-shaped parts protruding from the cap side wall 23 to the central direction of the cap inner cavity 24, and when the discontinuous internal thread 233 is connected with the external thread 11 of the medical connector 1, a discontinuous interval is generated, and the interval is favorable for the disinfectant 3 to infiltrate and disinfect the external thread 11 of the medical connector 1. Of course, the internal thread 233 may be a normal continuous internal thread 233.

As shown in fig. 6, the disinfection cap further comprises a sealing gasket 8, the sealing gasket 8 is made of medical grade silicon rubber material through vulcanization, the sealing gasket 8 is in a hollow ring shape and is positioned at the cap body connecting port 21, and the sealing gasket 8 comprises a sealing gasket outer edge 82a and a sealing gasket inner edge 82b. The upper end surface 27 of the cap body 2 is provided with a containing groove 231, the sealing gasket 8 is accommodated in the containing groove 231 in a conformal manner, and the outer edge 82a of the sealing gasket is in sealing contact with the inner surface 2311 of the containing groove. The inner edge 82b of the sealing gasket is in sealing fit with the surface of the medical connector 1, and when the medical connector 1 is screwed into the cap inner cavity 24, the disinfectant 3 in the cap inner cavity 24 is prevented from flowing out from between the inner edge 82b of the sealing gasket and the surface of the medical connector 1. In order to prevent the sealing gasket 8 from falling out of the inner cavity 24 of the cap body, the disinfection cap further comprises a fixing part 9, the fixing part 9 is made of medical polypropylene material by injection molding, the whole disinfection cap is hollow and annular, the fixing part 9 and the accommodating groove 231 are fixedly connected through a concave-convex matching structure, the sealing gasket 8 is fixedly pressed in the accommodating groove 231, and the sealing gasket 8 is prevented from falling out of the inner cavity 24 of the cap body.

As shown in fig. 14, the disinfection cap further includes a barrier film 4, the surface of the inner edge 82b of the sealing gasket extends towards the center direction of the inner cavity 24 of the cap body, the barrier film 4 and the sealing gasket 8 are integrally formed, and the whole barrier film 4 is in a film shape, including the outer edge 49a of the barrier film. When the cap 2 is tilted or inverted horizontally, the barrier film 4 prevents the disinfectant 3 from flowing out of the cap cavity 24. In order to reduce the resistance of the medical connector 1 entering the inner cavity 24 of the cap body, the barrier film 4 is composed of a plurality of membranes 46, the plurality of membranes 46 are distributed around the inner edge 211 of the connecting port of the cap body, and the barrier film 4 composed of the plurality of membranes 46 is easier to prop open, so that the entering resistance is reduced. The edge parts of two adjacent membranes 46 of the barrier film 4 are overlapped with each other, the overlapped parts of the membranes 46 are mutually jointed, the joint mode is that the upper surface of the edge of one membrane 46 is jointed with the lower surface of the edge of the adjacent membrane 46, or the upper surface of one end of the edge of one membrane 46 is jointed with the lower surface of the edge of the adjacent membrane 46, the lower surface of the other end is jointed with the upper surface of the edge of the adjacent membrane 46, when the cap connecting port 21 is inclined or inverted to the horizontal direction, the barrier film 4 not only prevents the disinfectant 3 from flowing out of the cap cavity 24, but also the overlapped parts of the membrane 46 and the membrane 46 of the barrier film 4 are tightly jointed by the gravity extrusion of the disinfectant 3, and the disinfectant 3 is further prevented from flowing out of the cap cavity 24.

As shown in fig. 5, the bottom 22 of the cap body is provided with a communication port 25 for communicating the inner cavity 24 of the cap body with the outside, the communication port 25 is provided with a breathable film 6 which is breathable and impermeable to liquid, the breathable film 6 is a PTFE film with a special coating, and is fixedly connected with the communication port 25 by adopting a welding process, the breathable film 6 can volatilize the disinfectant 3 pre-filled in the inner cavity 24 of the cap body in a steam mode, so that the medical connector 1 is in a sterile and dry environment, and in addition, the breathable film 6 prevents external microorganisms and bacteria from entering the inner cavity 24 of the cap body. In order to avoid the damage of ventilated membrane 6, disinfection cap still includes protection component 61, protection component 61 adopts medical level polypropylene material to mould plastics and makes, is the inside hollow tubular of both ends opening, protection component 61 top and cap body bottom 22 pass through unsmooth cooperation structure fixed connection, and the bottom is open to the outside. In order to avoid volatilization of the disinfectant 3 pre-filled in the inner cavity 24 of the front cap body through the ventilation membrane 6 by the communication port 25, the disinfection cap further comprises a sealing component 7, wherein the sealing component 7 is in an elongated shape as a whole, specifically, the bottom end of the protection component 61 is formed by extending downwards, and the bottom end of the protection component 61 can be closed. The sealing member 7 is provided with a frangible portion 71 at a position where it is connected to the protective member 61 to facilitate breakage of the sealing member 7.

As shown in fig. 17, in order to avoid the long-term contact between the disinfectant 3 pre-filled in the inner cavity 24 of the cap body and the breathable film 6 through the communication port 25 and affect the breathability of the breathable film 6, the inner cavity 24 of the cap body is provided with a partition member 241, the partition member 241 is in a horizontal shape, the inner surface 232 of the sidewall of the cap body extends towards the center of the cap body 2, the partition member 241 partitions the inner cavity 24 of the cap body into an upper cavity 242 of the cap body and a lower cavity 243 of the cap body, the upper cavity 242 of the cap body stores the volatile disinfectant 3, the communication port 25 is positioned in the lower cavity 243 of the cap body, and the breathable film 6 can enable the lower cavity 243 of the cap body to be communicated with the outside. In use, in order to facilitate the medical connector 1 to crush and break the partition member 241, the cap upper cavity 242 stores the disinfectant 3 and flows into the cap lower cavity 243, the partition member 241 is provided with a weak connection portion 2411, and the weak connection portion 2411 is positioned at the center of the partition member 241 and is formed by thinning the local wall thickness of the partition member 241.

Alternatively, in order to increase the storage capacity of the disinfectant 3 in the upper cavity 242 of the cap body, the medical connector 1 smoothly presses the partition member 241, as shown in fig. 18, the partition member 241 is inclined, one end of the partition member 241 near the cap body connection port 21 is provided with a weak connection portion 2411, and the weak connection portion 2411 is formed by thinning the local wall thickness of the partition member 241. When the medical connector 1 is screwed into the cap inner cavity 24, as one end of the partition part 241, which is close to the cap connecting port 21, is nearer to the medical connector 1, the partition part 241 is firstly extruded by the medical connector 1, the partition part 241 is broken along the weak connecting portion 2411, and the disinfectant 3 flows into the cap lower cavity 243 from the cap upper cavity 242; because the end of the partition part 241, which is far away from the cap body connection port 21, is far away from the medical connector 1 and is not extruded by the medical connector 1, the end of the partition part 241, which is far away from the cap body connection port 21, is well connected with the inner surface 232 of the cap body side wall, and the whole partition part 241 is prevented from falling into the cap body lower cavity 243.

Alternatively, in order to increase the storage capacity of the disinfectant 3 in the upper cavity 242 of the cap body, the medical connector 1 smoothly presses the partition member 241, as shown in fig. 19, the partition member 241 is provided with a protrusion 2412 protruding toward the cap body connection port 21, the protrusion 2412 is located at the center of the partition member 241, the protrusion 2412 is in an inverted cup shape protruding from the upper surface of the partition member 241, a weak connection portion 2411 is provided at a position where the protrusion 2412 is connected to the partition member 241, and the weak connection portion 2411 is formed by thinning a partial wall thickness of the partition member 241. The separation member 241 has a protrusion 2412 which shortens the distance between the medical connector 1 and the separation member 241, and when the medical connector 1 is screwed into the cap inner cavity 24, the protrusion 2412 is pressed by the medical connector 1, the separation member 241 is broken along the weak connection portion 2411, and the disinfectant 3 flows into the cap lower cavity 243 from the cap upper cavity 242. As shown in fig. 20, the protrusions 2412 are formed in a cup shape protruding from the upper surface of the partition 241 and arranged upright, and the cup cavity of the upright cup shape is advantageous for increasing the capacity of the upper cavity 242 of the cap body for storing the disinfectant 3. As shown in fig. 21, the protrusion 2412 has an inverted cup shape protruding from the upper surface of the partition 241, and has a recess at the bottom of the cup, which further increases the storage capacity of the upper cavity 242 of the cap for the sterilizing agent 3.

Claims

1. The utility model provides a disinfection cap for disinfect to medical joint (1), includes cap body (2) and closing part (5), cap body (2) are including cap body connector (21), cap body bottom (22) and cap body lateral wall (23), cap body connector (21) are including cap body connector inner edge (211), cavity that cap body bottom (22) and cap body lateral wall (23) enclose jointly is cap body inner chamber (24), and this cap body inner chamber (24) stores volatile disinfectant (3), closing part (5) seal cap body connector (21), prevent cap body inner chamber (24) and external contact, its characterized in that, be equipped with at least one on cap body (2) with cap body inner chamber (24) and external intercommunication mouth (25) that are linked together, intercommunication mouth (25) department is equipped with ventilative impermeable ventilated membrane (6), ventilated membrane (6) outside is equipped with and seals ventilated membrane (7) outside, and this sealed member (7) prevent cap body inner chamber (24) through intercommunication mouth (25) and ventilative membrane (6) and outside can break through ventilative membrane (7) and the rupture of seal part.

2. A disinfection cap as claimed in claim 1, and comprising a protection member (61), the protection member (61) being tubular with open interiors at both ends, being located outside the gas permeable membrane (6), the protection member (61) being arranged to protect the gas permeable membrane (6) from damage.

3. A disinfection cap as claimed in claim 1, wherein the sealing member (7) is provided with a frangible portion (71), and the sealing member (7) is broken along the frangible portion (71) after being subjected to a force to allow the cap inner chamber (24) to communicate with the outside through the communication port (25) via the ventilation membrane (6).

4. A disinfection cap as claimed in claim 3, and comprising a sealing gasket (8), said sealing gasket (8) comprising a sealing gasket outer edge (82 a) and a sealing gasket inner edge (82 b), said sealing gasket (8) being hollow and annular and being located at the cap body connection opening (21), said sealing gasket inner edge (82 b) being in sealing contact with the surface of the medical connector (1).

5. A disinfection cap as claimed in claim 4, wherein said cap body (2) is provided with a receiving groove (231) for receiving a sealing gasket (8), said receiving groove (231) comprising a receiving groove inner surface (2311), said sealing gasket outer edge (82 a) being in sealing contact with said receiving groove inner surface (2311).

6. A disinfection cap as claimed in claim 5, wherein said receiving groove (231) is an inwardly concave annular groove formed in the inner surface (232) of the cap body side wall.

7. The disinfection cap of claim 5, wherein said receiving groove (231) is an annular groove formed by an inward depression of an upper end surface (27) of the cap body.

8. The disinfection cap of claim 7, further comprising a securing element (9), said securing element (9) being located at the cap body connection opening (21), said securing element (9) securing at least a portion of the sealing gasket (8) against the interior of the receiving groove (231) preventing the sealing gasket (8) from escaping from the interior of the cap body cavity (24).

9. The disinfection cap of claim 8, further comprising a barrier film (4), wherein the barrier film (4) comprises a barrier film outer edge (49 a), the barrier film (4) is thin film-shaped and is positioned at the cap body connection port (21), the barrier film outer edge (49 a) is connected with the cap body connection port inner edge (211), and when the medical connector (1) is screwed into the cap body inner cavity (24), the barrier film (4) is extruded and spread by the medical connector (1).

10. A disinfection cap as claimed in claim 9, wherein said barrier film (4) is integral with the sealing gasket (8), the barrier film (4) being an extension of the inner edge (82 b) surface of the sealing gasket in the direction of the centre of the inner cavity (24) of the cap body.

11. The disinfection cap as claimed in claim 10, wherein the thickness of the barrier film (4) decreases from the outer edge to the central direction, the protrusion of the barrier film (4) to the central direction of the cap body (2) is an easy-deformation portion (45), when the easy-deformation portion (45) is pressed by the medical connector (1), the easy-deformation portion (45) is bent to the bottom (22) direction of the cap body, and when the medical connector (1) is pulled out from the inner cavity (24) of the cap body, the easy-deformation portion (45) is bent to the opposite direction of the bottom (22) of the cap body.

12. A disinfection cap as claimed in claim 11, wherein the barrier film (4) is provided with a tear line (42) in the radial direction of the cap body connection opening (21) for splitting the barrier film (4), and the barrier film (4) is squeezed by the medical connector (1) to split along the tear line (42) when the medical connector (1) enters the cap body cavity (24).

13. A disinfection cap as claimed in claim 11, wherein said barrier film (4) is composed of a plurality of membranes (46), said membranes (46) being arranged around the inner edge (211) of the cap body connection opening.

14. A disinfection cap as claimed in claim 13, wherein a gap (43) is provided between two adjacent membranes (46) of said barrier film (4), which gap (43) is not more than 1mm.

15. A disinfection cap as claimed in claim 13, wherein said barrier film (4) has two adjacent film pieces (46) with their edge portions overlapping each other, the overlapping portions of the film pieces (46) being in abutment with each other, the film pieces (46) preventing the disinfectant (3) from flowing out of the cap body cavity (24) when the cap body (2) is tilted or inverted in a horizontal direction.

16. A disinfection cap as claimed in any one of claims 9-15, wherein the upper surface of said barrier film (4) and/or the surface of the inner edge (82 b) of the sealing gasket is provided with a plurality of micro-protrusions (47) and/or micro-recesses (48), which micro-protrusions (47) and/or micro-recesses (48) increase the area of the surface of the upper surface of the barrier film (4) and/or the inner edge (82 b) of the sealing gasket to which the disinfection agent (3) adheres.

17. A disinfection cap as claimed in claim 16, wherein said cap body side wall (23) comprises a cap body side wall inner surface (232), said cap body side wall inner surface (232) being provided with internal threads (233) for mating connection with external threads (11) of a medical connector (1).

18. The disinfection cap as claimed in claim 17, wherein said cap body inner cavity (24) is provided with a partition member (241), the partition member (241) is an extension of the cap body side wall inner surface (232) toward the center direction of the cap body (2), the partition member (241) partitions the cap body inner cavity (24) into a cap body upper cavity (242) and a cap body lower cavity (243), said cap body upper cavity (242) stores a volatile disinfectant (3), said cap body lower cavity (243) is communicated with the outside through a ventilation membrane (6) on the communication port (25), said partition member (241) is provided with a weak connection portion (2411), when the medical joint (1) is screwed into the cap body inner cavity (24), the weak connection portion (2411) of the partition member (241) is crushed by an external force, and said cap body upper cavity (242) is communicated with the cap body lower cavity (243).

19. The sterilizing cap according to claim 18, wherein the partition member (241) is inclined, and a weak connection portion (2411) is provided at an end of the partition member (241) adjacent to the cap body connection port (21).

20. The sterilizing cap according to claim 18, wherein the partition member (241) is provided with a protrusion (2412) protruding toward the cap body connection port (21), and a weak connection portion (2411) is provided at a position where the protrusion (2412) is connected to the partition member (241).

21. The sterilizing cap according to claim 20, wherein the protrusion (2412) of the partition member (241) has a cup shape with an open top and a hollow interior, protruding toward the cap body connection port (21), and the hollow interior of the protrusion (2412) increases the storage capacity of the cap body inner cavity (24) for the sterilizing agent (3).