WO2013179596A1 - 曝露防止用キャップ - Google Patents
曝露防止用キャップ Download PDFInfo
- Publication number
- WO2013179596A1 WO2013179596A1 PCT/JP2013/003098 JP2013003098W WO2013179596A1 WO 2013179596 A1 WO2013179596 A1 WO 2013179596A1 JP 2013003098 W JP2013003098 W JP 2013003098W WO 2013179596 A1 WO2013179596 A1 WO 2013179596A1
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- WO
- WIPO (PCT)
- Prior art keywords
- vial
- rubber
- cap
- housing
- rubber film
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1443—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1406—Septums, pierceable membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1412—Containers with closing means, e.g. caps
- A61J1/1425—Snap-fit type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1443—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters
- A61J1/145—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters using air filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1443—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters
- A61J1/1456—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters using liquid filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1468—Containers characterised by specific material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2096—Combination of a vial and a syringe for transferring or mixing their contents
Definitions
- the present invention relates to an exposure prevention cap that is attached to a vial and prevents leakage of the chemical solution to the outside when the chemical solution is collected from the vial with a syringe.
- the syringe from which the drug solution has been collected is separated from the vial by pulling out the injection needle from the rubber stopper, and used to mix the drug solution into an infusion container or line.
- Patent Document 1 discloses a chemical solution that leaks when the injection needle is pulled out from the rubber stopper of the vial by attaching a rubber overcap to the mouth of the vial. It has been proposed to be confined in a sealed space within the overcap. However, even if such an overcap is mounted, it is difficult to prevent the drug solution from adhering to the injection needle pulled out from the overcap and leaking out of the overcap, and a satisfactory effect is obtained. I could't.
- the present invention has been made in the background of the above-described circumstances, and its solution is to more reliably suppress leakage of the chemical solution to the outside when the drug solution is aspirated and collected from the vial into the syringe.
- An object of the present invention is to provide a novel and simple structure of an anti-exposure cap that can be used.
- a feature of the present invention is an exposure prevention cap attached to a mouth portion of a vial sealed with a rubber stopper, and a central portion with respect to a cap-shaped housing attached to the mouth portion of the vial
- a puncture hole is formed in the puncture hole, and a rubber film is disposed in the puncture hole, and an internal space is formed between the opposing surfaces of the rubber film and the rubber stopper.
- the dome shape is convex toward the rubber plug.
- the tip of the injection needle pulled out from the rubber stopper is further pulled out from the rubber film through the internal space.
- the rubber film has a dome shape that protrudes in the direction opposite to the pulling direction, the pulling force of the injection needle is exerted toward the approximate center of curvature of the rubber film, so that Compressive stress in the direction is generated.
- the rubber film is pressed against the outer peripheral surface and the distal end surface of the syringe needle that is pulled out, and the drug solution attached to the surface of the syringe needle is wiped off so that the surface of the syringe needle is rubbed with the rubber film.
- the cap for preventing exposure it is desirable to provide a plurality of the rubber films stacked in the thickness direction.
- the wiping action of the rubber film on the injection needle is exerted additively by each rubber film.
- the wiping effect on the injection needle due to the edge action of the surface in each rubber film is much higher than that of a single thick rubber film. It can be demonstrated effectively.
- the internal space communicates with the external space via a filter member.
- the filter member is disposed in the communication path between the internal space and the external space, leakage of the chemical solution through the communication path can be effectively prevented.
- any of filter paper, non-woven fabric, membrane, and the like can be adopted.
- a filter member made of open-cell foam is preferable.
- a communication path having a complicated path extending in a non-linear manner is formed in the filter member, so that a large amount of absorption and retention of the chemical solution can be secured, and in each state such as spill, splash, aerosol, etc. It is possible to more effectively suppress the leakage of the chemical liquid to the external space.
- the specific position, number, shape, size, and the like are not limited at all.
- the following structure can be adopted. That is, in the outer peripheral portion of the mouth portion of the vial, the housing is overlapped with the vial sandwiching the filter member, and the inside of the inside through the overlapping surface of the housing and the vial A mode in which the space communicates with the external space can be suitably employed when providing the communication path in the present invention.
- a communication path can be formed between the housing and the vial, and it is not necessary to form a communication path in the housing itself, and the structure of the housing is simplified. Further, it is possible to secure a large space for forming the communication path around the internal space. Further, by sandwiching the filter member between the housing and the vial, it is possible to reliably prevent the generation of a gap around the filter member.
- a filter member disposed in the communication path is an annular plate shape, and the injection needle is attached to the rubber stopper of the vial. It is desirable that the central portion to be punctured is not covered with the filter member. Accordingly, the injection needle does not puncture the filter member, and the coring of the filter member that occurs with puncturing can be prevented.
- an inclined surface for guiding the puncture needle toward the puncture hole is partially formed in the circumferential direction in the outer opening portion of the puncture hole in the housing. May be.
- Such an inclined surface can guide the injection needle to the puncture position, thereby improving the safety and ease of the puncture operation. Further, since the injection needle can be easily seen through the region where the inclined surface is not formed on the circumference, the safety can be further improved by visual confirmation of the puncture operation.
- the elastic stress generated in the rubber film formed in the dome shape is skillfully used to adhere to the surface of the injection needle.
- the chemical liquid can be wiped off, and the wiped chemical liquid can be contained and contained in the internal space. Therefore, leakage of the drug solution to the outside when the injection needle is withdrawn from the vial can be effectively prevented.
- FIG. 4 is a longitudinal sectional view corresponding to the VII-VII section in FIG. 3, showing a state where the exposure prevention cap shown in FIG. 1 is attached to the vial.
- the longitudinal cross-sectional view which shows the state which punctured the needle of the syringe with respect to the vial with the cap for exposure prevention shown in FIG.
- (A) is a model figure for demonstrating the generation
- (b) is in the flat rubber film as a comparative example The model figure for demonstrating the generated stress at the time of pulling out an injection needle.
- FIGS. 1 to 6 show an exposure prevention cap 10 as an embodiment of the present invention.
- the exposure prevention cap 10 has a structure in which valve-like rubber films 14 and 14 are assembled to the housing 12.
- the mouth 64 It is used by being attached to a cap that covers (described later).
- the housing 12 has a generally circular inverted cup shape that opens downward as a whole, and has a substantially cylindrical shape that extends downward from the outer peripheral edge of the disk-shaped upper bottom 18.
- the peripheral wall part 20 is integrally formed.
- the peripheral wall portion 20 is provided with a step portion 22 at an intermediate portion in the height direction, and an upper peripheral wall portion 24 and a lower peripheral wall portion 26 are provided across the step portion 22.
- the housing 12 is made of a known synthetic resin material such as polypropylene, polyethylene, or ABS (acrylonitrile-budadiene-styrene) resin.
- the upper peripheral wall portion 24 has a tapered cylindrical shape that decreases in diameter upward.
- the lower peripheral wall portion 26 has a cylindrical shape and extends downward, and slits 28 extending upward from the lower end are provided at four locations on the periphery so that the lower peripheral wall portion 26 is in the circumferential direction. It is divided into four. Thereby, a pair of cover pieces 29 and 29 and a pair of locking pieces 30 and 30 are formed on the lower peripheral wall portion 26 so as to face each other in the radial direction.
- each of the pair of locking pieces 30, 30 is integrally formed with a locking projection 32 that protrudes toward the inner surface at the lower end portion.
- the upper bottom 18 of the housing 12 is formed with a puncture hole 34 extending through the central axis at the central portion.
- An annular protrusion 36 that protrudes downward is formed at the opening peripheral edge of the puncture hole 34 in the upper bottom 18.
- a guide protrusion 38 that protrudes upward is integrally formed at a radially intermediate portion of the upper bottom 18.
- the guide protrusion 38 is formed in the outer circumferential portion of the outer opening portion of the puncture hole 34 with a circumferential length that is less than one round.
- the guiding projection 38 has a circumferential length of approximately half a circumference. That is, the guide protrusion 38 is formed in a semicircular plateau shape, and the semicircular inner peripheral surface is a funnel-shaped inclined surface 40 that gradually decreases in diameter toward the puncture hole 34 and extends downward. .
- An injection needle 80 as a puncture needle, which will be described later, can be easily guided to the puncture hole 34 by the inclined surface 40.
- rubber films 14 and 14 are accommodated and assembled in a region surrounded by the upper peripheral wall portion 24 in the housing 12.
- the rubber film 14 has a circular plate shape as a whole, and a central portion is a valve portion 42 swelled downward in a dome shape that protrudes downward.
- the outer peripheral portion of the rubber film 14 is an annular plate-shaped support portion 44 that extends radially outward from the outer peripheral edge of the valve portion 42.
- Such a rubber film 14 is made of a known rubber material such as natural rubber or synthetic elastomer.
- two rubber films 14 and 14 having the same shape and the same material are overlapped with each other in the plate thickness direction and combined in a non-adhered state to form a double structure valve body.
- the valve portion 42 of the rubber film 14 has an upper concave surface and a lower convex surface having a spherical crown shape, and the curvature radius of the concave surface is equal to the curvature radius of the convex surface and the outer diameter dimension is also equal.
- the convex surface of the valve portion 42 of the upper rubber film 14 is substantially in close contact with the concave surface of the valve portion 42 of the lower rubber film 14.
- the holding member 48 includes an annular plate-shaped base portion 50, a cylindrical holding cylinder portion 52 protruding upward from the inner peripheral portion of the base portion 50, and an upper portion protruding from the outer peripheral portion of the base portion 50.
- a cylindrical fixed cylinder portion 54 is integrally formed.
- annular support protrusion 56 protruding from the inner peripheral surface is formed at the lower end of the holding cylinder part 52. Then, the rubber films 14 and 14 accommodated in the holding cylinder portion 52 are accommodated in the holding cylinder portion 52 by superimposing the outer peripheral portions of the support portions 44 and 44 on the support protrusion 56. Has been.
- the fixed cylinder portion 54 of the holding member 48 is fitted to an annular fixing rib 58 protruding downward from the upper bottom portion 18 of the housing 12 and is fixed by adhesion or welding as necessary.
- the holding member 48 is assembled in a region surrounded by the upper peripheral wall portion 24 in the housing 12.
- the housing 12 and the holding member 48 can be easily fixed by adhesion or welding by being formed of, for example, a thermoplastic synthetic resin material.
- the rubber films 14 and 14 accommodated in the holding cylinder portion 52 are fixed to the housing 12 with the holding member 48 fixed to the housing 12, and the support protrusions 56 of the holding member 48 in the overlapping direction. And the annular protrusion 36 of the housing 12.
- a valve body 46 formed by assembling the two rubber films 14 and 14 in a sealed state is disposed below the puncture hole 34 of the housing 12. The opening to is fluid tightly sealed.
- the exposure prevention cap 10 of this embodiment having such a structure is used by being attached to a vial 16 as shown in FIG.
- the vial 16 is a well-known one, and has a sealed structure in which a mouth portion 64 of a bottle body 62 formed of glass or the like is sealed with a rubber stopper 66, and a medicine 68 is accommodated therein.
- the rubber plug 66 has a metal sealing material 69 covering the outer peripheral surface thereof fixed by caulking to a collar portion 70 formed in the mouth portion 64 of the bottle body 62, and the sealing structure of the vial 16 is ensured.
- the filter member 72 is assembled to the exposure prevention cap 10 when the vial 16 is attached.
- the filter member 72 has fine open cells, and may be formed of a foamed elastic body formed of, for example, an elastomer. In particular, in this embodiment, it is in the shape of an annular plate, and is mounted by being superimposed on the lower surface of the base portion 50 of the holding member 48 and positioned by fixing or the like as necessary.
- the filter member 72 is sandwiched between the opposed surfaces of the base portion 50 of the holding member 48 and the rubber stopper 66 of the vial 16 in a compressed state while the exposure prevention cap 10 is attached to the vial 16. It has come to be.
- the housing 12 is superimposed on the vial 16 with the filter member 72 interposed therebetween.
- the locking protrusions 32 of the pair of locking pieces 30, 30 on the lower peripheral wall portion 26 of the housing 12 are provided. 32 can be locked to the collar 70 of the mouth 64 of the vial 16. Accordingly, the housing 12, that is, the exposure prevention cap 10 can be mounted so as to cover the mouth portion 64 of the vial 16 in a cap state. Then, the rubber film 14 of the exposure prevention cap 10 is disposed in a dome shape that protrudes toward the rubber stopper 66 of the vial 16.
- the step portion 22 of the exposure prevention cap 10 abuts on the outer peripheral edge portion of the metal sealing material 69 that covers the rubber stopper 66 of the vial 16, whereby the vial 16 of the exposure prevention cap 10. It is designed to prevent rattling against the noise.
- the central portion of the rubber stopper 66 of the vial 16 and the central portion of the valve body 46 of the exposure prevention cap 10 face each other with a predetermined distance therebetween.
- An internal space 74 having a predetermined volume is defined between the opposing surfaces of the rubber plug 66 and the valve body 46, and the internal space 74 is communicated with the external space via the filter member 72. ing.
- the internal space 74 communicates with the external space through a gap between the outer peripheral surface of the metal sealing material 69 that covers the mouth portion 64 of the vial 16 and the lower peripheral wall portion 26 of the housing 12. .
- a solvent solution is injected into the vial 16 with a syringe to prepare a drug solution, and the drug solution is again sucked with a syringe. It will be collected. Thereafter, for example, as shown in FIG. 8, the syringe 78 that sucks and collects the drug solution 76 prepared in the vial 16 is turned upside down from the state of FIG. 8, and the injection needle 80 is pulled out from the rubber stopper 66 to remove the vial 16. The drug solution 76 is mixedly injected into a container or line for infusion.
- the valve part 42 of each rubber film 14 which comprises the valve body 46 is a spherical crown shape which protrudes below, as FIG. 9 (a) shows. It is said that. Therefore, when the injection needle 80 punctured in the valve portion 42 is pulled upward, the valve portion 42 is elastically deformed in a contraction direction by reducing the protruding height downward due to the frictional force with the injection needle 80. (The direction indicated by the white arrow in FIG. 9A).
- valve portion 42 is pressed against substantially the entire surface of the puncture portion of the injection needle 80 to the valve portion 42, and the injection needle 80 is pulled upward while being handled by the valve portion 42. Therefore, the injection needle 80 is pulled out to the external space while removing not only the outer peripheral surface but also the tip of the injection needle 80 so that the droplets adhering to the surface are forcibly wiped off. Leakage to the external space can be effectively prevented.
- valve portion 42 ′ The wiping action of the drug solution 76 on the injection needle 80 by such a valve portion 42 is compared with, for example, a valve portion 42 'made of a flat rubber film as a comparative example shown in FIG. 9B.
- a valve portion 42 'made of a flat rubber film as a comparative example shown in FIG. 9B.
- the chemical liquid 76 wiped off by the valve portion 42 of the rubber film 14 is accommodated in the internal space 74, and is prevented from diffusing into the external space. Therefore, by discarding the vial 16 with the exposure prevention cap 10 attached, it is possible to prevent the medical worker from being exposed substantially completely.
- the internal space 74 since the internal space 74 communicates with the external space via the filter member 72 that can capture the drug solution 76, the pressure in the vial 16 has changed with the operation of the syringe 78 and the like. Even in this case, the internal space 74 can be kept at atmospheric pressure. Therefore, when the needle 80 is pulled out, the inside of the syringe 80 is returned to the atmospheric pressure when the tip of the needle 80 passes through the internal space 74, and inside and outside the syringe 78 after being pulled out from the valve portion 42. Leakage of the chemical liquid 76 due to the pressure difference can be effectively prevented.
- valve portion 42 is composed of two independently deformable rubber films 14, 14, the chemical liquid 76 is wiped from the injection needle 80 as described above in each rubber film 14. An effect will be exhibited, and the further chemical liquid leakage prevention effect may be exhibited.
- the rubber film 14 may have any dome shape that protrudes toward the rubber stopper 66, and can generate compressive stress when the injection needle 80 is pulled out.
- the size, size (diameter size), curvature, and the like are not limited, and can be set as appropriate according to the size of the mouth portion 64 of the vial 16, the size of the injection needle 80, and the like.
- the dome shape of the rubber film 14 does not need to have a constant radius of curvature as a whole, and for example, the radius of curvature may gradually change from the central portion toward the outer peripheral portion.
- the curvature radii of both surfaces of the valve portion 42 of the rubber film 14 are substantially the same so that the two rubber films 14 and 14 overlap each other in a substantially close contact state. It is not necessary for both surfaces to have the same shape.
- the curvature radius of the convex surface can be made larger than the concave surface of the valve portion 42 to make the thickness dimension of the valve portion 42 substantially constant as a whole.
- the two rubber films 14 and 14 are superposed in close contact, but there may be a gap between the superposed surfaces, or one rubber film 14 or three sheets. It is also possible to employ the rubber film 14 described above.
- the communication structure of the internal space 74 to the external space via the filter member 72 is not essential in the present invention, and the internal space 74 between the opposing surfaces of the rubber plug 66 and the valve body 46 may be a sealed structure. good. Even in such a case, the wiping effect of the drug solution 76 on the injection needle 80 by the rubber film 14 as described above can be effectively exhibited.
- the funnel-shaped inclined surface 40 by the guide protrusion 38 is also effective for further improving the safety when handling the chemical liquid 76, but is not essential in the present invention. It is not necessary to provide such an inclined surface 40, and a guiding inclined surface extending around the entire circumference of the puncture hole 34 may be formed.
- Examples 1 to 5 were prepared which are the exposure prevention cap 10 having the above-described structure, and the rubber film 14 made of isoprene has a different shape.
- the rubber film 14 had a thickness of 1.0 mm in Examples 1 to 4, and a thickness of 1.5 mm in Example 5.
- the radius of curvature of the concave and convex surface portion of the rubber film 14 having a dome shape is the same for the concave surface portion and the convex surface portion in any of the examples, is 2.0 mm in the first example, and is 3 in the second, fourth, and fifth examples.
- the depth dimension of the concave portion was 0.5 mm in Examples 1 to 3, and 1.0 mm in Examples 4 and 5.
- two rubber films 14 having the shapes as described above were placed in the housing 12 in close contact with each other.
- a comparative example 1 of an exposure prevention cap employing a flat rubber film made of isoprene was prepared.
- the flat rubber film had a thickness of 1.5 mm, and the two rubber films were closely stacked and arranged in the housing 12.
- a cauldron bottle No. 5/20 mL filled with 6 mL of 50 wt% ethanol was prepared.
- a 20 mL Nipro Disposable Syringe nominal capacity 25 mL
- an 18G ⁇ 1′1 / 2 RB needle Flow Max
- Comparative Example 1 droplet adhesion is often observed on the surface of the flat rubber film (six times out of ten times), and when adhered, the droplet diameter is 0.1 mm or more. In most cases, it was about 0.3 mm. Therefore, it can be confirmed that it is difficult to sufficiently prevent leakage of the chemical solution to the outside air with the exposure prevention cap using the flat rubber film.
- 10 exposure prevention cap
- 12 housing
- 14 rubber membrane
- 16 vial
- 34 puncture hole
- 40 inclined surface
- 64 mouth
- 66 rubber stopper
- 72 filter member
- 74 internal space
- 80 injection needle
Abstract
Description
Claims (6)
- ゴム栓で封止されたバイアルの口部に装着される曝露防止用キャップにおいて、
前記バイアルの前記口部に取り付けられるキャップ状のハウジングに対して中央部分に穿刺用孔が形成されていると共に、該穿刺用孔にゴム膜が配されており、該ゴム膜と前記ゴム栓との対向面間に内部空間が形成されている一方、
該ゴム膜が該ゴム栓に向かって凸となるドーム形状とされていることを特徴とする曝露防止用キャップ。 - 前記ゴム膜が厚さ方向で複数重ね合わされている請求項1に記載の曝露防止用キャップ。
- 前記内部空間が、フィルタ部材を介して外部空間に連通されている請求項1又は2に記載の曝露防止用キャップ。
- 前記フィルタ部材が連続気泡の発泡体で構成されている請求項3に記載の曝露防止用キャップ。
- 前記バイアルの前記口部の外周部分において、前記ハウジングが該バイアルに対して前記フィルタ部材を挟んで重ね合わされるようになっており、
それらハウジングとバイアルとの重ね合わせ面間を通じて、前記内部空間が外部空間に連通されるようになっている請求項3又は4に記載の曝露防止用キャップ。 - 前記ハウジングにおける前記穿刺用孔の外側開口部分には、該穿刺用孔に向かって穿刺針を案内する傾斜面が、周方向で部分的に形成されている請求項1~5の何れか1項に記載の曝露防止用キャップ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/403,362 US9808401B2 (en) | 2012-05-31 | 2013-05-15 | Exposure-preventing cap |
EP13797404.4A EP2856999B1 (en) | 2012-05-31 | 2013-05-15 | Exposure-preventing cap |
JP2014518258A JP6174576B2 (ja) | 2012-05-31 | 2013-05-15 | 曝露防止用キャップ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012124149 | 2012-05-31 | ||
JP2012-124149 | 2012-05-31 |
Publications (1)
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WO2013179596A1 true WO2013179596A1 (ja) | 2013-12-05 |
Family
ID=49672825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/003098 WO2013179596A1 (ja) | 2012-05-31 | 2013-05-15 | 曝露防止用キャップ |
Country Status (4)
Country | Link |
---|---|
US (1) | US9808401B2 (ja) |
EP (1) | EP2856999B1 (ja) |
JP (1) | JP6174576B2 (ja) |
WO (1) | WO2013179596A1 (ja) |
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US9414991B2 (en) | 2013-11-06 | 2016-08-16 | Becton Dickinson and Company Limited | Medical connector having locking engagement |
US9597260B2 (en) | 2013-03-15 | 2017-03-21 | Becton Dickinson and Company Ltd. | System for closed transfer of fluids |
US9636278B2 (en) | 2013-11-06 | 2017-05-02 | Becton Dickinson and Company Limited | System for closed transfer of fluids with a locking member |
US9642775B2 (en) | 2013-11-06 | 2017-05-09 | Becton Dickinson and Company Limited | System for closed transfer of fluids having connector |
US9833605B2 (en) | 2014-04-21 | 2017-12-05 | Becton Dickinson and Company Limited | Fluid transfer device and packaging therefor |
US9855192B2 (en) | 2014-04-21 | 2018-01-02 | Becton Dickinson and Company Limited | Syringe adapter with compound motion disengagement |
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Also Published As
Publication number | Publication date |
---|---|
EP2856999A1 (en) | 2015-04-08 |
EP2856999A4 (en) | 2016-01-13 |
JPWO2013179596A1 (ja) | 2016-01-18 |
EP2856999B1 (en) | 2017-06-21 |
JP6174576B2 (ja) | 2017-08-02 |
US20150112296A1 (en) | 2015-04-23 |
US9808401B2 (en) | 2017-11-07 |
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