CN210644836U - Antifouling cap of medical instrument of multipurpose - Google Patents
Antifouling cap of medical instrument of multipurpose Download PDFInfo
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- CN210644836U CN210644836U CN201920869647.6U CN201920869647U CN210644836U CN 210644836 U CN210644836 U CN 210644836U CN 201920869647 U CN201920869647 U CN 201920869647U CN 210644836 U CN210644836 U CN 210644836U
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- upper cover
- interface
- boss
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Abstract
The utility model relates to an antifouling cap of medical instrument of multipurpose, include: the upper cover (1), lower connector (2) that are connected with upper cover (1), including inserting the outstanding joint portion of establishing in upper cover (1) and upper cover (1) fixed connection, set up the boss in the outstanding joint portion, establish filter membrane (3) in boss orientation upper cover (1) one side, connect joint end (7) at the boss opposite side, upper cover (1) is equipped with interface (4) with lower connector (2) relative one side. Compared with the prior art, the utility model discloses a set up interface (4), can all zonulae occludens with the different interfaces of other apparatus when using, increased antifouling cap and other medical instrument's suitability, can also freely stretch in addition and shrink and connect, increased the usage of antifouling cap.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, especially, relate to an antifouling cap of medical instrument of multipurpose.
Background
Chinese patent CN208031594U discloses a needle-free airtight infusion joint anti-fouling cap, which has significant effect on the anti-fouling of a positive pressure joint during the infusion intermission period and can keep the aseptic state of the positive pressure joint for a long time. When the next infusion is carried out, the anti-fouling cap is only required to be taken down, the interface end of the positive pressure connector is disinfected conventionally, and then the infusion can be started. The lower end connector of the antifouling cap is a luer connector, the upper cover is not provided with a connector, and the antifouling cap aims at protecting a positive pressure connector with the luer connector. The uniqueness of the anti-fouling cap interface makes it impossible to connect with medical instruments having other interface types. However, in clinical use, the interfaces of various medical instruments are various, and the design of the interface with the upper cover not matched with the upper cover limits the application range of the anti-fouling cap.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multipurpose medical instrument antifouling cap for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
a multipurpose medical instrument anti-fouling cap, comprising:
an upper cover is arranged on the upper cover,
the lower connector connected with the upper cover comprises a protruding combination part, a boss, a filtering membrane and a connector end, wherein the protruding combination part is inserted into the upper cover and is fixedly connected with the upper cover, the boss is arranged in the protruding combination part, the filtering membrane is arranged on one side, facing the upper cover, of the boss, the connector end is connected to the other side of the boss, and an interface is arranged on one side, opposite to the lower connector, of the upper cover.
The interface is a male interface or a female interface, and is sealed and liquid-tight when connected with other medical instruments.
The male interface comprises a male interface with internal threads and a male interface without internal threads.
The female interface comprises a female interface with external threads and a female interface without the external threads.
The interface is the interface that can stretch out and contract wantonly, can stretch out the joint when using, can contract the joint when not using.
The interface is a luer connector.
The interface with external screw thread is provided with a protecting cover with a small hole for protecting the external screw thread.
The boss is a circular boss, and the circular boss covers the outer shell part of the joint surface of the positive pressure joint.
The inner diameter of the circular boss is matched with the diameter of a liquid channel in the positive pressure joint.
And a sealing gasket is arranged at the position where the circular boss is combined with the joint end, or sealant is sprayed or directly fused and combined.
The sealing washer is made of one or more of silica gel, natural rubber, silicone rubber, ethylene propylene rubber, butyl rubber, chloroprene rubber, fluororubber, polyurethane rubber, epichlorohydrin rubber, acrylate rubber, polytetrafluoroethylene, nylon or polyformaldehyde.
The sealant comprises one or more of polysulfide rubber, silicone rubber, polyurethane rubber, chloroprene rubber, butyl rubber, epoxy resin, unsaturated polyester resin, phenolic resin, polyacrylic resin, polyvinyl chloride resin, linseed oil, castor oil, tung oil, animal oil or fish oil.
The connector end is a luer connector.
The filtering membrane is provided with one or more layers and is used for isolating and filtering pollution sources such as microorganisms, bacteria, viruses, dust, particulate matters and the like and preventing the positive pressure joint from being polluted.
The aperture of the filter membrane is 0.02-10 μm, and the filter membrane comprises one or more of a polyether sulfone membrane, a cellulose filter membrane, a nuclear pore membrane, an ionic membrane, a nylon membrane, a polytetrafluoroethylene membrane, a polyvinylidene fluoride membrane or a polypropylene membrane.
The shape of the upper cover comprises one of a cylinder shape, a spherical shape, an ellipsoid shape, a rectangular shape, a gourd shape, an upper convex and lower flat shape, an upper flat and lower convex shape, an upper big and lower small shape or an upper small and lower big shape.
The materials of the upper cover and the lower connector are high molecular materials or inorganic materials suitable for medical use.
As a preferred technical solution, the cap and the lower connector are made of materials including, but not limited to, polypropylene, nylon, polyethylene, polystyrene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polyvinylidene fluoride, polytetrafluoroethylene, or polyvinyl chloride.
The cap and the lower connector can be made of the same material or different materials.
Compared with the prior art, the utility model discloses can carry out zonulae occludens with various types of medical instrument's interface, can also freely stretch and contract the joint, this adaptability that has increased antifouling cap and other medical instrument has increased the usage of antifouling cap.
The protective cap can protect the positive pressure connector and can also protect medical instruments with other interface types, and the protective cap has wide application range.
Drawings
FIG. 1 is a schematic sectional view showing the entire structure of an antifouling cap in example 1;
FIG. 2 is a schematic sectional view showing a lower connecting head of the antifouling cap in example 1;
FIG. 3 is a schematic sectional view of an upper cover of the antifouling cap in example 1;
FIG. 4 is a schematic top view showing the structure of the upper cover of the contamination preventive cap in example 1;
FIG. 5 is a schematic sectional view showing the entire structure of the antifouling cap in example 2;
FIG. 6 is a schematic top view showing the structure of the upper cover of the contamination preventive cap in example 2;
FIG. 7 is a schematic sectional view showing the entire structure of the antifouling cap in example 3;
FIG. 8 is a schematic top view showing the structure of the upper cover of the stain-proofing cap in example 3;
FIG. 9 is a schematic sectional view showing the entire structure of the antifouling cap in example 4;
FIG. 10 is a schematic top view showing the structure of the upper cover of the stain-proofing cap in example 4;
FIG. 11 is a schematic sectional view showing the entire structure of the antifouling cap in example 5;
FIG. 12 is a schematic top view showing the structure of the upper cover of the stain-proofing cap in example 5;
FIG. 13 is a schematic sectional view showing the entire structure of the antifouling cap in example 6;
FIG. 14 is an overall sectional view schematically showing the structure of the mouthpiece of the antifouling cap in a stretched state according to example 7;
FIG. 15 is a schematic sectional view showing the interface of the antifouling cap of example 7 in a contracted state;
FIG. 16 is a schematic sectional view showing the interface of the antifouling cap of example 7 after the adjustment of the stretching length;
FIG. 17 is a schematic sectional view showing the entire structure of the antifouling cap in example 8;
FIG. 18 is a schematic cross-sectional view of the protective cover 11 of example 8;
figure 19 is a top view of the protective cover 11 of embodiment 8.
In the figure, 1-upper cover, 2-lower connector, 3-filtering membrane, 4-upper cover interface, 5-circular boss, 6-sealing washer, 7-connector end, 8-external thread, 9-internal thread, 10-lug, 11-protecting cover and 12-small hole.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Example 1:
a multipurpose medical instrument antifouling cap is shown in figures 1-4 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted in the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a connector 4.
Wherein, the boss is ring boss 5, and this ring boss 5 just covers the joint face outer shell part of positive pressure joint. The inner diameter of the circular ring boss 5 is matched with the diameter of a liquid channel of the positive pressure joint. And a sealing gasket 6 is arranged at the position where the circular ring boss 5 is combined with the joint end 7. The material of the sealing washer 6 comprises one or more of silica gel, natural rubber, silicone rubber, ethylene propylene rubber, butyl rubber, chloroprene rubber, fluororubber, urethane rubber, epichlorohydrin rubber, acrylate rubber, polytetrafluoroethylene, nylon or polyformaldehyde.
The filtering membrane 3 is provided with one or more layers, the aperture of the filtering membrane 3 used is 0.02-10 μm, and the filtering membrane 3 includes one or more of a polyethersulfone membrane, a cellulose filtering membrane, a nuclear pore membrane, an ionic membrane, a nylon membrane, a polytetrafluoroethylene membrane, a polyvinylidene fluoride membrane, or a polypropylene membrane.
In the embodiment, the interface 4 connected with the upper cover 1 is a female interface, the female interface is smooth in inside and provided with external threads 8 on the outside, and can be connected with other medical instruments and is sealed and does not leak liquid after being connected.
The shape of the upper cover 1 comprises one of a cylinder shape, a spherical shape, an ellipsoid shape, a rectangular shape, a gourd shape, an upper convex and lower flat shape, an upper flat and lower convex shape, an upper big and lower small shape or an upper small and lower big shape.
When the actual structure design, adopt the structure of ring boss 5, its size just in time can cover the joint face outer shell part of malleation joint, nevertheless can not cover the interior liquid passage of malleation joint, can effectively guarantee to malleation joint and be in the state before the use. The sealing washer 6 is arranged at the position where the circular boss 5 and the joint end 7 are combined, so that the joint end 7 can be tightly contacted with the positive pressure joint after being connected with the positive pressure joint, and the effect of sealing the Ruhr joint is achieved.
Example 2:
a multipurpose medical instrument antifouling cap is shown in figures 5-6 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted in the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a connector 4, wherein the connector 4 connected with the upper cover 1 is a female connector, the interior of the female connector is smooth, and the exterior of the female connector is provided with an external thread 8.
Example 3:
a multipurpose medical instrument antifouling cap is shown in figures 7-8 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted in the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. This upper cover 1 even has interface 4, and wherein, interface 4 that links to each other with upper cover 1 is female interface, and female interface inside and outside is all smooth.
Example 4:
a multipurpose medical instrument antifouling cap is shown in figures 9-10 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted in the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a connector 4, wherein the connector 4 connected with the upper cover 1 is a male connector, the outer part of the male connector is smooth, and an internal thread 9 is arranged in the male connector.
Example 5:
a multipurpose medical instrument antifouling cap is shown in figures 11-12 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted in the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a connector 4, in the embodiment, the connector 4 connected with the upper cover 1 is a male connector, and the inside and the outside of the male connector are smooth.
Example 6:
a multipurpose medical instrument antifouling cap is shown in figure 13 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted into the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a connector 4, wherein the connector 4 connected with the upper cover 1 is a luer connector.
Example 7:
a multipurpose medical instrument antifouling cap is shown in figures 14, 15 and 16 and comprises an upper cover 1 and a lower connector 2 connected with the upper cover 1, wherein the lower connector 2 comprises a protruding combination part inserted into the upper cover 1 and fixedly connected with the upper cover 1, a boss arranged at the bottom of the protruding combination part, a filter membrane 3 clamped on the boss, and a joint end 7 positioned at the bottom of the boss and fixedly connected with the boss, and the joint end 7 is a Ruhr joint. The upper cover 1 is connected with a port 4, wherein the port 4 connected with the upper cover 1 is provided with a lug 10, the port 4 can be arbitrarily stretched and contracted, the port 4 can be stretched when in use (figure 14), can be contracted when not in use (figure 15), and can also be adjusted in stretching length according to use requirements (figure 16).
Example 8:
a multipurpose medical instrument anti-fouling cap is shown in figure 17, and has a structure which is substantially the same as that of the anti-fouling cap in embodiment 1, except that a port 4 connected with an upper cover 1 in the anti-fouling cap in the embodiment is a female port, and the female port is smooth in the inside and is provided with external threads 8 on the outside. The female port is connected with a protective cover 11, as shown in fig. 18, the protective cover 11 is used for protecting the external thread 8, and the protective cover 11 is provided with at least one small hole 12, as shown in fig. 19.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A multipurpose medical instrument anti-fouling cap, comprising:
an upper cover (1) is arranged on the upper cover,
the lower connector (2) connected with the upper cover (1) comprises a protruding combination part which is inserted in the upper cover (1) and fixedly connected with the upper cover (1), a boss arranged in the protruding combination part, a filter membrane (3) arranged on one side of the boss facing the upper cover (1), and a connector end (7) connected with the other side of the boss,
the connector is characterized in that an interface (4) is arranged on one side of the upper cover (1) opposite to the lower connector (2).
2. A multipurpose medical instrument anti-fouling cap according to claim 1, characterized in that the interface (4) is a male interface or a female interface.
3. The multipurpose medical instrument anti-fouling cap of claim 2, wherein the male interface comprises a male interface with internal threads and a male interface without internal threads.
4. The multipurpose medical device anti-fouling cap of claim 2, wherein the female interface comprises an externally threaded female interface and an externally unthreaded female interface.
5. The multipurpose medical instrument anti-fouling cap of claim 2 or 4, wherein a female interface of the external thread of the anti-fouling cap is provided with a protective cover with a small hole for protecting the external thread.
6. A multipurpose medical instrument anti-fouling cap according to any one of claims 1-4, characterized in that the interface (4) is an interface capable of being stretched and contracted arbitrarily.
7. A multipurpose medical instrument anti-fouling cap according to any one of claims 1-4, characterized in that the interface (4) is a luer fitting.
8. The multipurpose medical instrument antifouling cap as claimed in claim 7, wherein the boss is a circular boss (5), and a sealing gasket (6) is arranged at a position where the boss is combined with the joint end (7), or a sealant is sprayed on the joint end or the joint end is directly fused and combined with the joint end.
9. A multipurpose medical instrument anti-fouling cap according to claim 1, characterized in that the connector end (7) is a luer connector.
10. A multipurpose medical instrument anti-fouling cap according to claim 1, characterized in that the filtering membrane (3) is provided with one or more layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869647.6U CN210644836U (en) | 2019-06-11 | 2019-06-11 | Antifouling cap of medical instrument of multipurpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869647.6U CN210644836U (en) | 2019-06-11 | 2019-06-11 | Antifouling cap of medical instrument of multipurpose |
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| Publication Number | Publication Date |
|---|---|
| CN210644836U true CN210644836U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920869647.6U Active CN210644836U (en) | 2019-06-11 | 2019-06-11 | Antifouling cap of medical instrument of multipurpose |
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| Country | Link |
|---|---|
| CN (1) | CN210644836U (en) |
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- 2019-06-11 CN CN201920869647.6U patent/CN210644836U/en active Active
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