CN208031594U - A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function - Google Patents
A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function Download PDFInfo
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- CN208031594U CN208031594U CN201720696163.7U CN201720696163U CN208031594U CN 208031594 U CN208031594 U CN 208031594U CN 201720696163 U CN201720696163 U CN 201720696163U CN 208031594 U CN208031594 U CN 208031594U
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- seal
- upper cover
- positive pressure
- boss
- needleless
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Abstract
The utility model is related to a kind of Needleless seal transfusion joint dirt-proof caps with seal nipple function, the lower union joint being connected including upper cover and with upper cover, the lower union joint include be plugged in upper cover and be fixedly connected with upper cover protrusion engaging portion, be arranged in the boss of prominent engaging portion bottom, the filter membrane being fastened on boss, the tip side that is fixedly connected positioned at boss bottom and with boss, upper cover offers air equalizer opening.Compared with prior art, the utility model is simple in structure, it is economical and practical, positive pressure connector can be effectively prevent to pollute, when being used in infusion process or during the indwelling of infusion interval, it keeps positive pressure connector to be in germ-free condition and positive pressure always, the operation of alcohol wipe positive pressure head before medical staff is wrapped up the operation of positive pressure connector and be infused again after primary infusion with sterile gauze is omitted, improves the working efficiency of medical staff.
Description
Technical field
The utility model belongs to the field of medical instrument technology, is related to a kind of Needleless seal transfusion with seal nipple function
Connector dirt-proof cap.
Background technology
Needleless seal transfusion joint, also known as positive pressure connector widely (are set with venous detaining needle, PICC through peripheral vein
Enter central venous catheter), CVC (central venous catheter) connections use.Positive pressure connector is not disposable product, positive to crimp
Head is replaced generally depending on the stage of replacement of remaining needle, during patient's continuous transfusion, the positive pressure connector after primary infusion
It is easily contaminated.Currently, after health care workers are all made of infusion, the connector face of positive pressure connector is wrapped up with sterile gauze, prevents from connecing
Head are contaminated, and before being infused again, the connector face of medical staff's 70-75% alcohol wipe positive pressure connectors connects after naturally dry
Enter transfusion system.Such operation, not only process is cumbersome, increase the labor intensity of medical staff, and positive pressure connector connects
There are still by the possibility of the dust particle pollution in microorganism, chemical substance and air for head.The reason is that：(1) sterile yarn
Cloth wraps up the connector face of positive pressure connector, and the dust particle in microorganism, chemical substance and air can not be prevented to be deposited on
On connector face；(2) 70-75% alcohol can only kill bacterium, cannot kill gemma and virus.If with iodophor disinfection, although can kill
Go out bacterial propagule, gemma, fungi, protozoon and fractionated viral, but Iodophor is non-volatile, and light-exposed easy decomposition, leads to chemical reagent
It can remain on connector face, when infusion, this kind of chemical reagent was brought into vivo, can lead to allergic reaction；(3) positive pressure connector is being just
Pressure valve or the inner wall seam for separating membrane element and positive pressure connector shell, some positive valves also have the water conservancy diversion for designing a word or cross
Slot, these narrow spaces normally result in the delay of drug, microorganism or impurity, that is, use the alcohol wipe of 70-75%,
It is difficult to clean up, potential risk is caused to patient when infusion.
Utility model content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide it is a kind of simple in structure,
It is economical and practical, positive pressure connector can be effectively prevent to pollute, be conducive to improve medical staff's working efficiency and safe and reliable having seals
The Needleless seal transfusion joint dirt-proof cap of connector function.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function, including upper cover and be connected with upper cover
Lower union joint, the lower union joint include be plugged in upper cover and be fixedly connected with upper cover protrusion engaging portion, be arranged in protrusion
The boss of engaging portion bottom, the filter membrane being fastened on boss, the tip side being fixedly connected positioned at boss bottom and with boss, institute
The upper cover stated offers air equalizer opening.
The boss is circle convex platform, which covers the connector face casing part of positive pressure connector just.
The internal diameter of the circle convex platform is adapted with the diameter of the fluid passage in positive pressure connector.
The circle convex platform is equipped with seal washer at the position that tip side is combined.
The material of the seal washer includes silica gel, natural rubber, silicon rubber, EP rubbers, butyl rubber, neoprene rubber
One kind in glue, fluorubber, polyurethane rubber, epichlorohydrin rubber, acrylic rubber, polytetrafluoroethylene (PTFE), nylon or polyformaldehyde or
It is a variety of.
The circle convex platform is coated with fluid sealant at the position that tip side is combined.
The fluid sealant includes polysulfide rubber, silicon rubber, polyurethane rubber, neoprene, butyl rubber, asphalt mixtures modified by epoxy resin
Fat, unsaturated polyester resin, phenolic resin, polyacrylic resin, Corvic, linseed oil, castor oil, tung oil, animal
It is one or more in oil or fish oil.
The tip side is female Luer.
The circle convex platform can also direct melt binding with tip side.
The air equalizer opening is equipped with one or more, to maintain the positive pressure after the completion of infusion, anti-Hemostatic Oral Liquid
Reflux.
The filter membrane is equipped with one or more layers, simultaneously filtering microorganism, bacterium, virus, dust, particulate matter is isolated
Equal pollution sources prevent positive pressure connector contaminated.
The aperture of the filter membrane is 0.02-10 μm, and the filter membrane includes poly (ether sulfone) film, cellulose filter
It is one or more in film, nucleopore membranes, ionic membrane, nylon membrane, polytetrafluoroethylene film, polyvinylidene fluoride film or polypropylene screen.
The shape of the upper cover include cylinder, spherical shape, elliposoidal, rectangle, Pear-Shaped, convex lower flat shape, it is upper put down under
One kind in convex, upper big and bottom samll shape or small top and big bottom.
The material of the upper cover, lower union joint should be suitble to medical high molecular material or suitable medical inorganic material
Material.
As a preferred technical solution, the cap, lower union joint material include but not limited to polypropylene, nylon,
Polyethylene, polystyrene, makrolon, the copolymer of acrylonitrile-butadiene-styrene (ABS), Kynoar, polytetrafluoroethylene (PTFE) or
Polyvinyl chloride.
Material of the same race or material not of the same race may be used with lower union joint in the cap.
When practical structures design, using circle convex platform structure, size can just cover the connector face of positive pressure connector
Casing part, but not the fluid passage in positive pressure connector is covered, the state that positive pressure connector is in before use can be effectively ensured.
Seal washer or spray containment glue are set at the position that tip side is combined in circle convex platform, it is ensured that dirt-proof cap and positive pressure
After connector connection, the two is in close contact, and achievees the effect that leakproof seal.
Compared with prior art, the utility model has the characteristics that：
1) overall structure is simple, economical and practical, can effective filtering microorganism, bacterium, disease using filtering Design of Membrane Structure
The suspicious contamination sources such as poison, dust, particulate matter；
2) after locking positive pressure connector and dirt-proof cap luer lock connector with screw thread retainer ring, dirt-proof cap lower port can be kept
With the sealing state of positive pressure connector；
3) more convenient to use, securely and reliably, in use, can be effective in infusion process or during the indwelling of infusion interval
It prevents positive pressure connector exposure in air, positive pressure connector is kept to be in germ-free condition and positive pressure always；
4) practicability is good, can omit medical staff after primary infusion with sterile gauze wrap up positive pressure connector operation and
The operation of alcohol wipe positive pressure head, improves the working efficiency of medical staff before being infused again, has good application prospect.
Description of the drawings
Fig. 1 is the utility model section structural schematic diagram；
Fig. 2 is the cross-sectional view of upper cover in the utility model；
Fig. 3 is the overlooking structure diagram of upper cover in the utility model；
Fig. 4 is the cross-sectional view of lower union joint in the utility model；
Description of symbols in figure：
1-upper cover, 2-lower union joints, 3-filter membranes, 4-air equalizer openings, 5-circle convex platforms, 6-seal washers,
7-tip sides.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1：
As shown in Figs 1-4, a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function, including upper cover 1 with
And the lower union joint 2 being connected with upper cover 1, the lower union joint 2 include being plugged in upper cover 1 and being fixedly connected with upper cover 1 prominent
Go out engaging portion, be arranged prominent engaging portion bottom boss, be fastened on boss filter membrane 3, be located at boss bottom and with it is convex
The tip side 7 that platform is fixedly connected, upper cover 1 offer air equalizer opening 4.Tip side 7 is female Luer.
Wherein, boss is circle convex platform 5, which covers the connector face casing part of positive pressure connector just.Circle
The internal diameter of ring convex platform 5 is adapted with the diameter of the fluid passage of positive pressure connector.The position that circle convex platform 5 is combined with tip side 7
Place is equipped with seal washer 6.The material of seal washer 6 includes silica gel, natural rubber, silicon rubber, EP rubbers, butyl rubber, chlorine
One in buna, fluorubber, polyurethane rubber, epichlorohydrin rubber, acrylic rubber, polytetrafluoroethylene (PTFE), nylon or polyformaldehyde
Kind is a variety of.
Air equalizer opening 4 is equipped with one or more, and filter membrane 3 is equipped with one or more layers.The aperture of filter membrane 3 is 0.02-
10 μm, and filter membrane 3 includes poly (ether sulfone) film, cellulose filter membrane, nucleopore membranes, ionic membrane, nylon membrane, polytetrafluoroethylene film, gathers
It is one or more in vinylidene fluoride film or polypropylene screen.
The shape of upper cover 1 include cylinder, spherical shape, elliposoidal, rectangle, Pear-Shaped, convex lower flat shape, it is upper put down time convex,
One kind in upper big and bottom samll shape or small top and big bottom.
When practical structures design, using 5 structure of circle convex platform, size can just cover the connector face of positive pressure connector
Casing part, but not the fluid passage in positive pressure connector is covered, the state that positive pressure connector is in before use can be effectively ensured.
Seal washer 6 is set at the position that tip side 7 is combined in circle convex platform 5, it is ensured that tip side 7 is connect with positive pressure connector
Afterwards, the two is in close contact, and achievees the effect that seal female Luer.
Embodiment 2：
In the present embodiment, circle convex platform 5 is coated with fluid sealant at the position that tip side 7 is combined.Fluid sealant includes poly-
Sulphur rubber, silicon rubber, polyurethane rubber, neoprene, butyl rubber, epoxy resin, unsaturated polyester resin, phenolic resin,
It is one or more in polyacrylic resin, Corvic, linseed oil, castor oil, tung oil, animal oil or fish oil.
Remaining is the same as embodiment 1.
Embodiment 3：
In the present embodiment, circle convex platform 5 and 7 direct melt binding of tip side.
Remaining is the same as embodiment 1.
Practicality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (8)
1. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function, which is characterized in that including upper cover (1) and
The lower union joint (2) being connected with upper cover (1), the lower union joint (2) include being plugged in upper cover (1) and being fixed with upper cover (1)
The protrusion engaging portion of connection is arranged in the boss for protruding engaging portion bottom, the filter membrane (3) being fastened on boss, is located at boss
The bottom and tip side (7) being fixedly connected with boss, the upper cover (1) offer air equalizer opening (4).
2. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 1, feature
It is, the boss is circle convex platform (5), which covers the connector face casing part of positive pressure connector just.
3. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 2, feature
It is, the internal diameter of the circle convex platform (5) is adapted with the diameter of the fluid passage in positive pressure connector.
4. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 2, feature
Be, the circle convex platform (5) be equipped at the position that tip side (7) is combined seal washer (6) or spray containment glue or
Direct melt binding.
5. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 1, feature
It is, the tip side (7) is female Luer.
6. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 1, feature
It is, the air equalizer opening (4) is equipped with one or more, and the filter membrane (3) is equipped with one or more layers.
7. a kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function according to claim 6, feature
It is, the aperture of the filter membrane (3) is 0.02-10 μm.
8. a kind of Needleless seal transfusion joint with seal nipple function according to any one of claims 1 to 7 is antifouling
Cap, which is characterized in that the shape of the upper cover (1) include cylinder, spherical shape, elliposoidal, rectangle, Pear-Shaped, it is convex it is lower put down
One kind in shape, upper flat lower convex, upper big and bottom samll shape or small top and big bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720696163.7U CN208031594U (en) | 2017-06-15 | 2017-06-15 | A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720696163.7U CN208031594U (en) | 2017-06-15 | 2017-06-15 | A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208031594U true CN208031594U (en) | 2018-11-02 |
Family
ID=63957790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720696163.7U Active CN208031594U (en) | 2017-06-15 | 2017-06-15 | A kind of Needleless seal transfusion joint dirt-proof cap with seal nipple function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208031594U (en) |
-
2017
- 2017-06-15 CN CN201720696163.7U patent/CN208031594U/en active Active
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