WO2004033332A1 - 薬液容器、薬液容器用の注出ノズルおよび薬液容器用のキャップ - Google Patents
薬液容器、薬液容器用の注出ノズルおよび薬液容器用のキャップ Download PDFInfo
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- WO2004033332A1 WO2004033332A1 PCT/JP2003/012641 JP0312641W WO2004033332A1 WO 2004033332 A1 WO2004033332 A1 WO 2004033332A1 JP 0312641 W JP0312641 W JP 0312641W WO 2004033332 A1 WO2004033332 A1 WO 2004033332A1
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- Prior art keywords
- nozzle
- container
- liquid
- cap
- opening
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Classifications
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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- 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers
Definitions
- the present invention relates to a drug solution container used for loading a drug solution such as eye drops, an injection nozzle for the drug solution container provided in the drug solution container, and a detachable nozzle which is detachably attached to the drug solution container while covering the ejection nozzle.
- the present invention relates to a cap for a chemical solution container to be mounted.
- an eye drop container 100 as shown in FIG. 6 disclosed in Japanese Patent Application Laid-Open No. 2000-225172 is known.
- the eye drop container 100 covers the container body 101 into which the eye drop M is to be loaded, the spout nozzle 103 mounted on the upper opening of the mouthpiece 102, and the spout nozzle 103.
- a cap (not shown) detachably attached to the container body 101 is provided.
- the mouthpiece 102 is formed so as to project upward from the center of the upper surface of the container body 101, and the container body 101 is formed with an opening through the cylinder 102. It is in a state of being left.
- the dispensing nozzle 103 has a fitting portion 104 which is press-fitted into the mouthpiece 102, and a flange 105 and a conical joint portion 106 fitted to the fitting portion 104. And a discharge nozzle main body 108 connected continuously through the discharge nozzle main body. A constricted portion 107 is formed between the ejection nozzle main body 108 and the joint portion 106 by gradually decreasing the diameter dimension from above and below.
- the pouring nozzle main body 108 includes a nozzle portion 110 protruding outward from a side surface for pouring a chemical solution.
- the eye drops (chemical liquid) M loaded in the container main body 101 passes through the chemical liquid flow passages 113 and passes through the nozzle 110. It will be led out from the tip opening 1 1 2.
- the nozzle portion 110 is directed to the side, when the eye drop M is poured, the held eye drop container 100 is turned sideways, A part of the hand holding the container 100 can be supported at an appropriate position on the face.
- the position setting state of the eye drop container 100 is more stable than that in which a commonly used nozzle portion is provided at the top of the eye drop container, whereby the eye drop M can be easily and surely sprayed. Can be poured into.
- the hand holding the eye drop container 100 is not positioned directly above the eyes, there is an advantage that a feeling of oppression does not occur.
- the eye drop M when the eye drop M is injected into the eye, for example, as shown in FIG. 7A, even if the eye drop container 100 is inclined upward, the eye drop M derived from the nozzle 110 is Although it tends to spread along the surface of the ejection nozzle body 108, a constricted portion 107 is formed between the ejection nozzle body 108 and the joint portion 106. The presence of the part 107 prevents the eye drop M from going to the junction 106, thereby effectively preventing the so-called dripping of the eye drop M from moving to the container body 101 side. .
- the conventional eye drop container 100 as shown in FIG. 6 compensates for the drawbacks of the conventional eye drop container prior to this, and injects while ensuring the prevention of liquid dripping during eye injection operation. Although it achieves the simplicity of operation, as a result of actual use, it was found that the following solutions existed.
- the conventional eye drop container 100 as described above, after dropping of the eye drop M into the eye is completed, it is generally stored vertically as shown in FIG. 7B. However, at this time, since the nozzle portion 110 is in the horizontal direction, the eye drops M remaining on the surface of the opening edge portion 111 of the nozzle portion 110 pass along the surface of the pouring nozzle body 108. It has been found that a problem of dropping downward occurs. Therefore, even if the conventional eye drop container 100 can prevent the liquid from dripping at the time of the injection operation of the eye drop M (FIG. 7A), the outlet nozzle 103 is capped with the opening edge.
- the present invention has been made to solve the above-described problems, and has a first object to make it possible to make the liquid in the opening ⁇ of the injection nozzle satisfactorily run out during the operation of injecting the chemical solution.
- the second purpose is to ensure that the leakage of the chemical solution from the opening at the tip of the injection nozzle while the cap is covered is for the chemical solution container, the discharge nozzle for the chemical solution container, and the chemical solution container.
- the cap is provided. Disclosure of the invention
- the present invention is a drug solution container comprising a container body for loading a drug solution having an opening at an upper part, and a dispensing nozzle closing the opening, wherein the dispensing nozzle is fitted in the opening in a liquid-tight manner. And a discharge nozzle body protruding from the connection part.
- the discharge nozzle body is provided with a side-to-side liquid inlet, and at least the discharge nozzle
- the main body is characterized in that the portion for forming the liquid injection port is formed of a material having high water repellency.
- the material having high water repellency is, for example, an appropriate amount (for example, one drop) of a 0.1% aqueous solution of polysorbate 80 having a smooth surface to be tested.
- the material is such that when dropped on the surface (horizontal surface) of the sample, the contact angle of the droplet to the surface of the test plate becomes 75 ° or more.
- the material having high water repellency is polymethylpentene.
- the present invention includes a container body for loading a chemical solution having an opening at an upper part, an injection nozzle for closing the opening, and a cap that is detachably mounted on the container body over the injection nozzle.
- a chemical liquid container wherein the dispensing nozzle comprises: a fitting portion fitted in the opening in a liquid-tight manner; and a dispensing nozzle body protruding from the fitting portion.
- the pouring nozzle body is provided with a laterally oriented pouring port, and the end of the cap that forms the pouring port of the pouring nozzle body can be in close contact with the inner peripheral surface of the cap.
- the shape is set as described above. In the setting of the shape of the cap having such a configuration, leakage of the chemical solution can be reliably prevented.
- the pouring nozzle main body includes a concave portion, and the concave portion extends to a base end side with a step from a front end surface to a front end portion where the liquid inlet is formed, and pierces the pouring nozzle. It is characterized in that it is formed so as to communicate with the selected chemical solution outlet passage.
- the present invention relates to an ejection nozzle for a drug solution container having an ejection nozzle body which closes an upper opening of a drug solution loading container body and is provided with a laterally oriented injection port for ejecting a drug solution.
- at least a portion for forming a liquid injection port of the discharge nozzle main body is formed of polymethylpentene.
- Polymethylpentene is a polymer obtained by polymerizing propylene, and such a polymer has a water-repellent property of water or an aqueous solution with respect to the polymer, which is another commonly used polymer such as polyethylene-polypropylene. It was found that polymethylpentene has a sufficiently higher water repellency than other polymers, especially in the case of an aqueous solution containing a surfactant.
- the water repellency of water or an aqueous solution is at least at a portion (hereinafter referred to as a nozzle portion) forming a liquid injection port of a discharge nozzle main body as compared with a general synthetic resin such as polyethylene and polypropylene.
- a nozzle portion a portion forming a liquid injection port of a discharge nozzle main body as compared with a general synthetic resin such as polyethylene and polypropylene.
- polymethylpentene which increases in size, increases the water repellency of the dispensing nozzle body to chemicals, a type of aqueous solution, as compared to when using other synthetic resin materials. Of the end face is good.
- the container main body is configured such that a cap can be detachably attached to the pouring nozzle body in a state where the cap is attached to the pouring nozzle main body.
- the pouring nozzle body is formed so as to be in close contact with the inner peripheral surface of the pouring nozzle, and the pouring nozzle body extends to the base end side with a step from the front end surface to the front end portion where the liquid pouring port is formed, and the pouring nozzle And a concave portion communicating with the chemical solution outlet passage perforated.
- the droplet-shaped chemical solution remaining on the end face of the nozzle is drawn into the gap between the walls of the step formed in the injection port due to the surface tension.
- the liquid droplet does not exist at the leading edge of the liquid injection port, whereby a substantially liquid-out state is also ensured.
- the present invention relates to a cap which is detachably attached to a container body over a discharge nozzle for closing an opening of a container body for loading a drug solution, wherein an end face of a part forming a liquid inlet of the discharge nozzle is provided. Is set to a shape along the cone, and the cap is set to a shape along the cone so that the inner peripheral surface can close the end face in a liquid-tight state.
- the cap is placed over the spout nozzle and attached to the container body, so that the inner peripheral surface of the cap is in close contact with the end face of the nozzle portion and is poured in a liquid-tight manner. Since the liquid port is closed, inconvenience such that the chemical liquid leaks out through the liquid injection port while the cap is attached to the container body is avoided.
- the inner peripheral surface of the cap is shaped so as to follow the conical shape, so that when the cap is pushed into the container body, the pressing force presses the inner peripheral surface of the cap against the edge of the liquid inlet.
- the contact state becomes more reliable, whereby the liquid leakage can be reliably prevented.
- the present invention includes a container body for loading a chemical solution having an opening at an upper part, an injection nozzle for closing the opening, and a cap that is detachably mounted on the container body over the injection nozzle.
- a chemical solution container wherein the dispensing nozzle includes a fitting portion fitted into the opening in a liquid-tight manner, and a dispensing nozzle body protruding from the fitting portion.
- the nozzle body is provided with a liquid inlet facing sideways, and an end surface of a portion forming the liquid inlet of the injection nozzle is set to have a shape along a cone, and the injection nozzle has the same shape as that of the injection nozzle.
- a concave portion extending from the end face to the base end side with a step and communicating with a chemical solution outlet path perforated in the pouring nozzle is provided at a distal end portion where the liquid pouring port is formed, and the cap has an inner peripheral surface. Is set along a conical shape so that the end face can be closed in a liquid-tight manner. It is characterized by that.
- FIG. 1 is an exploded perspective view, partly cut away, showing an embodiment of an eye drop container which is a kind of a drug solution container according to the present invention.
- FIG. 2 is an assembled perspective view of the eye drop container shown in FIG.
- FIG. 3 is a cross-sectional view taken along line AA of the eye drop container shown in FIG.
- FIG. 4 is a partially cut-away perspective view showing one embodiment of a pouring nozzle mounted on the container body.
- FIG. 5 is a diagram showing a structural formula for explaining a propylene polymerization treatment.
- FIG. 6 is a perspective view illustrating a conventional eye drop container.
- FIG. 7A and FIG. 7B are explanatory diagrams for explaining a dripping state in a conventional eye drop container.
- FIG. 1 is a partially cutaway exploded perspective view showing an embodiment of an eye drop container, which is one type of a drug solution container according to the present invention
- FIG. 2 is an assembled perspective view thereof
- FIG. 3 is a sectional view taken along line AA of the eye drop container shown in FIG.
- FIG. 4 is a partially cutaway perspective view showing one embodiment of a pouring nozzle mounted on the container body.
- an eye drop container 10 includes a container body 20 for loading an eye drop M, and a mounting port 23 described later provided at the center of the upper surface of the container body 20. It has a basic configuration including an ejection nozzle 30 that is press-fitted into the container, and a cap 40 that is detachably attached to the container body 20 so as to cover the ejection nozzle 30.
- the container main body 20 has an elliptical shape in plan view, is formed in a vertically long shape, and has a cylindrical mouthpiece 22 projecting upward from a center position of the top plate 21. are doing.
- a mounting port (upper opening) 23 for mounting the discharge nozzle 30 is formed on the upper surface of the barrel 22, and a cap 40 is screwed onto the outer peripheral surface.
- Male screw 2 2a is screwed.
- the top plate 21 is formed by bulging upward from the peripheral edge toward the center, and shoulder portions 21 a having an arc shape in a longitudinal cross-sectional view extending from front to back are formed on both sides in the longitudinal direction. Have been.
- the cap 40 is detachably attached to the container body 20 by being screwed to the mouthpiece 22 via the male screw 22a.
- the container body 20 is formed by performing blow molding on a transparent synthetic resin material in a molten state.
- the discharge nozzle 30 includes a fitting portion 31 press-fitted into a fitting opening (opening) 23 of the barrel 22, and a fitting portion 31 of the fitting portion 31.
- a flange 32 formed concentrically at the upper end, a conical joint 33 protruding upward from the flange 32 concentrically, and integrally formed on the top of the joint 33
- a discharge nozzle body 34 which is provided.
- a constricted portion 37 is formed between the ejection nozzle body 34 and the joint portion 33 by gradually decreasing the diameter dimension from above and below.
- the pouring nozzle 30 is manufactured by an injection molding process using a thermoplastic synthetic resin material such as polyethylene or polypropylene as a raw material.
- these thermoplastic synthetic resins particularly, Polymethylpentene, which has the property of increasing the water repellency of water and aqueous solutions, is used.
- the fitting portion 31 is formed in a cylindrical shape, and has a cavity 31a for allowing the eye drops M to pass therethrough.
- the fitting portion 31 has a slightly tapered distal end so that it can be easily inserted into the mounting port 23, and has an outer diameter at the base end of the inner diameter of the mounting port 23 of the barrel 22.
- the dimensions are set slightly larger than the dimensions, and the state of attachment to the container body 20 is stabilized by compressive deformation of the base end by press-fitting into the attachment port 23.
- a plurality of ribs 31b extending in the vertical direction are provided at a predetermined pitch in the circumferential direction on the peripheral surface of the cavity 31a of the fitting portion 31. With the presence of these ribs 3lb, the fitting portion 31b is formed. However, it is structurally strong against the force applied in the vertical direction in spite of the thinness of the thickness dimension, so that vertical deformation is less likely to occur when press-fitting into the mounting port 23.
- the outer diameter of the flange 32 is set to be the same as the outer diameter of the barrel 22, so that the fitting portion 31 is pressed into the mounting port 23, and the outer peripheral surface is The outer peripheral surface of the cylinder 22 is flush with the outer peripheral surface.
- the joint portion 33 projects upward from the upper surface of the flange 32 so as to be concentric and conical, and the lowermost outer diameter is substantially the same as the outer diameter of the fitting portion 31.
- the outer diameter of the uppermost dimension is set to slightly more than 1 Z2 of the outer diameter of the lowermost dimension.
- the inclination angle of the outer peripheral inclined surface with respect to the upper surface of the flange 32 is set to approximately 45 °.
- the pouring nozzle body 34 includes a head 35 having a spherical shape, and a nozzle portion 36 protruding from one side surface of the head 35 in a direction perpendicular to the axis of the fitting portion 31. It is configured as such.
- the injection nozzle body 34 has an inverted L-shape in a side view that communicates between a cavity 31a of the fitting portion 31 and a liquid injection port 38a described below via a flange 32.
- the chemical solution outlet 38 is perforated so that the eye drops M in the container body 20 are led out through the cavity 31a of the fitting part 31 and the chemical outlet 38 of the head 35. It has become.
- a liquid inlet 38 a for discharging the eye drops M is formed in a portion facing the outside of the chemical liquid outlet channel 38 (specifically, a space surrounded by an annular inclined surface 36 a described later). I have.
- the nozzle portion 36 has a circular cutout flat portion 35 formed by cutting one side of the spherical head 35 along a plane parallel to the axis of the fitting portion 31. It is formed by projecting outward from the a toward the radial direction of the head 35.
- the notched flat portion 35a is provided at a position spaced apart from the center of the head portion 35 so as to substantially coincide with the upper edge portion of the joint portion 33 having a conical shape.
- the outer diameter of the nozzle portion 36 is set to be smaller than the diameter of the cutout flat portion 35a.
- a trumpet-shaped annular inclined surface 36a formed by concentrically cutting out the annular end surface 36d of the nozzle portion 36 from the annular end surface 36d toward the center of the head portion 35 so as to gradually decrease in diameter.
- An annular side surface 36b extending from the annular edge on the inner side of the annular inclined surface 36a toward the center of the liquid inlet 38a is provided.
- annular inclined surface 36a and the annular side surface 36b extend from the annular end surface 36d in which the liquid injection port 38a is formed to the base end side with a step, and the injection nozzle 3 A concave portion according to the present invention (in the present embodiment, an annular concave portion 36 c) is formed, which communicates with the chemical solution outlet passage 38 perforated at 0.
- the head 35 configured as described above has an outer surface abutting from the inner side with a predetermined conical shape centered on the center of the hole of the portion extending in the longitudinal direction of the chemical solution outlet path 38. Is set.
- the annular end surface 36d formed at the opening edge of the nozzle portion 36 is shaped so as to follow the conical shape at all positions. Therefore, the nozzle portion 36 is inclined so that the amount of protrusion of the annular end surface 36 from the cutout flat portion 35a gradually increases downward from the uppermost portion as shown in a sectional view in FIG. ing.
- annular concave portion 36c By providing the above-described annular concave portion 36c in the nozzle portion 36, it is possible to reduce the radial thickness of the annular end surface 36d. This makes it possible to reduce the amount of the remaining eye drops M attached to the annular end face 36 d after the pouring operation of the eye drops M, so that the so-called drainage is improved.
- the annular concave portion 36 c has a groove shape, the droplet of the eye drop M remaining on the annular end surface 36 d after the pouring operation of the eye drop M is used to remove the droplet of the eye drop M due to the surface tension into the annular inclined surface 36 a and It has the function of drawing into the annular recess 36c surrounded by the annular side surface 36b, and this also improves the liquid drainage at the annular end surface 36d.
- the pouring nozzle 30 is formed of polymethylpentene.
- the polymethyl pentene has a water-repellent property of water or an aqueous solution, and other commonly used polymers such as polyethylene and polypropylene.
- the cap 40 includes a peripheral wall 41, a top plate 42 having a closed upper surface of the peripheral wall 41, a lid cylinder 43 integrally formed in the peripheral wall 41, An inner plug 44 fitted inside the cylindrical body 43 is provided.
- the peripheral wall portion 41 is formed in the same elliptical shape as the container main body 20 in a plan view, and the vertical dimension is set to approximately 2Z5 of the vertical dimension of the container main body 20.
- the eye drop container 10 is designed so that the external appearance is harmonious in design.
- the lid tube body 43 is formed integrally with the peripheral wall portion 41 and is formed so as to extend vertically in a central portion of the peripheral wall portion 41. Vertical dimension so that the part is located slightly above the lower edge of the peripheral wall part 41. Is set.
- the inner diameter of the cover cylinder 43 is set slightly larger than the outer diameter of the mouthpiece 22 of the container body 20, and the inner peripheral surface thereof corresponds to the male screw 22a of the mouthpiece 22.
- Female screw 4 3a is screwed in such a way that the female screw 4 3a of the lid cylinder 4 3 is turned in the screwing direction with the cap 40 placed on the mouthpiece 22 so that the female thread 4 3a of the mouthpiece 22 is screwed.
- the cap 40 is attached to the container main body 20 by screwing it into the container main body 20, and the cap 40 is detached from the container main body 20 by rotating in the opposite direction.
- the male screw 22a and the female screw 43a are set so that the cap 40, which has an elliptical shape in a plan view, is orthogonal to the container body 20, and then ejects the lid cylinder 43. Then, the cap 40 is rotated one turn clockwise, so that the two completely match in a plan view, and the lower edge surface of the peripheral wall portion 41 is covered with the container body 20.
- the top plate 21 is screwed together so as to contact the edge of the top plate 21.
- the cap 40 Since a pair of shoulders 21a of the top plate 21 are bulged upward at the center in the width direction, the cap 40 is screwed with the female screw 43a into the male screw 22a. As it descends, the pair of lower end surfaces of the peripheral wall portion 41 near the lid cylinder body 43 abut against the shoulder portions 21a, respectively. When the rotation operation of the cap 40 is continued, the opposing lower ends of the peripheral wall portion 41 are elastically deformed so as to expand outward, respectively, whereby the screwing operation proceeds.
- the cap 40 is in the same phase as the container main body 20 in a state where the cap 40 is rotated just once by further rotating operation, and the elastic deformation of the peripheral wall portion 41 returns to the original state, as shown in FIG. Thus, it is mounted on the container body 20.
- the cap 4 In the mounting operation of the cap 40 to the container body 20, the cap 4 is moved from a state in which the lower end edge of the peripheral wall portion 41 of the cap 40 abuts on the shoulder 21 a of the container body 20. Until 0 is attached to the container body 20, a comfortable and responsive click feeling can be felt.
- the inner plug 44 is placed over the ejection nozzle 30 with the cap 40 attached to the container body 20, and has an outer diameter that fits in sliding contact with the lid cylinder 43. In the present embodiment, the diameter is set so that the innermost part of the lid cylinder 43 can be pressed.
- the inner plug 44 is provided with a conical recess 45 concentrically recessed from the lower surface.
- the conical recess 45 comes into surface contact with the annular end surface 36d of the nozzle portion 36.
- the shape is set so that
- the contacting portion has the same conical shape. Is screwed into the mouthpiece 22 of the container body 20 by screwing the cap cylinder 43 of the cap 40 into the annular end face 36 d of the nozzle part 36. Be sure to contact the inner peripheral surface of the concave portion 45. Therefore, when the cap 40 is attached to the container body 20, the annular end face 36d abuts on the inner peripheral surface of the conical recess 45 in a liquid-tight manner as shown in FIG. The leakage of eye drops M from the injection port 38a is reliably prevented.
- the eye drop container 10 of the present invention includes a container body 20 for loading an eye drop M having a mounting port 23 on an upper part, and a dispensing nozzle closing the mounting port 23.
- the dispensing nozzle 30 is formed of polymethylpentene, which makes the aqueous solution more water repellent than a general thermoplastic synthetic resin such as polyethylene or polypropylene. Because of the good condition, after the eye drops M have been poured into the eyes via the nozzle 36, the droplets of the eye drops M are prevented from remaining on the annular end surface 36d of the nozzle 36. Thus, dripping due to the remaining droplets can be effectively suppressed, and the conventional disadvantage that the surface of the container body 20 is contaminated by the dripping can be eliminated.
- the cap 40 attached to the container main body 20 via the ejection nozzle 30 has an inner plug 44 fitted inside the lid cylinder 43 of the cap 40.
- the conical concave portion 45 of FIG. 4 is shaped so that the inner peripheral surface of the conical concave portion 45 can be in close contact with the annular end surface 36 d of the nozzle portion 36.
- the inner peripheral surface of the cap 40 is Closes the liquid inlet 38 a in close contact with the annular end face 36 d of the liquid inlet, thereby closing the inlet 40 a with the cap 40 attached to the container body 20. Liquid leakage, such as leakage to the outside via a, can be effectively prevented.
- the inner peripheral surface of the inner plug 44 is shaped so as to follow a predetermined conical shape, and the annular end surface 36 d is also set to the same conical shape. Even if there is an error, the error is absorbed by pushing the cap 40 into the container body 20, and the abutment state of the inner peripheral surface of the inner plug 44 against the annular end surface 36d is more reliable. As a result, liquid leakage is more reliably prevented.
- the liquid inlet 38 a of the nozzle portion 36 has a distal end portion with a step extending from the distal end surface to the proximal end side, and is connected to a chemical liquid outlet passage 38 perforated in the discharge nozzle body 34. Since the communicating annular concave portion 36c is formed, the radial thickness of the liquid inlet 38a portion of the nozzle portion 36 can be reduced due to the presence of the annular concave portion 36c. However, even if droplets of the eye drop M remain in this portion, the amount of the residue can be suppressed to a small amount, whereby contamination of the container body 20 due to dripping can be minimized.
- the droplet of the eye drop M retained on the annular end surface 36d of the nozzle portion 36 is injected by surface tension. Drops are formed between the intersecting walls of the step formed in the mouth 38a (between the annular inclined surface 36a and the annular side surface 36b), so that the liquid droplets are filled at the tip of the inlet 38a. The liquid no longer exists in the portion, and this also makes it possible to ensure a substantially liquid-out state.
- the present invention is not limited to the above embodiments, but also includes the following contents.
- the eye drop container 10 is employed as the drug solution container.However, the present invention is not limited to the case where the drug solution container is the eye drop container 10, and the solution drops. It can be applied to containers for various chemicals used to pour out at the same time.
- polymethylpentene is Although used throughout, the present invention is not limited to using polymethylpentene for the entirety of the dispensing nozzle 30; for example, the heads 35 and The nozzle portion 36 may be applied, or polymethylpentene may be applied only to the nozzle portion 36.
- the eye drop container 10 has an elliptical shape in plan view, but the present invention is limited to the eye drop container having an elliptical shape in plan view.
- the shape may be circular, polygonal such as triangular or quadrangular, or other shapes.
- Test example (measurement of contact angle with surfactant aqueous solution)
- test plates For the following seven types of plastic materials, prepare test plates with a smooth surface in advance, and add an appropriate amount (1 drop) of 0.1% polysorbate 80 aqueous solution at room temperature to each test plate. Was dropped, and the contact angle formed between the test plate and the droplet was measured using the following contact angle measuring device. The measurement was carried out by directly reading the contact angle 10 seconds after dropping, and the average value of the three measurements was adopted as the measured value.
- polysorbate 80 Nakko Chemicals, Nikkor T O-100 M
- purified water was added to make 100 g, and the mixture was stirred and dissolved with a magnetic stirrer to prepare.
- Table 1 shows the measurement results.
- the chemical solution container includes a container body for loading a chemical solution having an opening at an upper part, and a pouring nozzle closing the opening. And a discharge nozzle main body protruding from the fit part, and at least a part (nozzle) for forming a liquid injection port of the discharge nozzle main body.
- the water repellency of the chemical solution which is a type of aqueous solution, at the nozzle is reduced by using other synthetic resin materials such as polyethylene and polypropylene.
- the size of the liquid can be improved at the end face of the nozzle portion.
- a shape is set so that the end surface of the part (nozzle part) which forms the pouring port of a pouring nozzle body may be stuck to the inner peripheral surface of a cap. Therefore, by attaching the cap to the container body, the liquid injection port is securely closed by the inner peripheral surface of the cap, and thus, leakage of liquid from the liquid injection port can be reliably prevented.
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Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004542823A JP4457013B2 (ja) | 2002-10-08 | 2003-10-02 | 薬液容器、及び薬液容器用の抽出ノズル |
AU2003272917A AU2003272917A1 (en) | 2002-10-08 | 2003-10-02 | Medical fluid container, spourting nozzle for medical fluid container, and cap for medical fluid container |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2002294854 | 2002-10-08 | ||
JP2002-294854 | 2002-10-08 | ||
US43647802P | 2002-12-27 | 2002-12-27 | |
US60/436,478 | 2002-12-27 |
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WO2004033332A1 true WO2004033332A1 (ja) | 2004-04-22 |
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PCT/JP2003/012641 WO2004033332A1 (ja) | 2002-10-08 | 2003-10-02 | 薬液容器、薬液容器用の注出ノズルおよび薬液容器用のキャップ |
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JP (1) | JP4457013B2 (ja) |
AU (1) | AU2003272917A1 (ja) |
WO (1) | WO2004033332A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008002616A2 (en) * | 2006-06-28 | 2008-01-03 | Alcan Global Pharmaceutical Packaging, Inc. | Angled ophthalmic dropper tip |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62182247U (ja) * | 1986-05-09 | 1987-11-19 | ||
JPH0375835U (ja) * | 1989-11-22 | 1991-07-30 | ||
JP2000225172A (ja) * | 1999-02-05 | 2000-08-15 | Tanabe Seiyaku Co Ltd | 目薬容器及び目薬容器用の注出ノズル |
-
2003
- 2003-10-02 WO PCT/JP2003/012641 patent/WO2004033332A1/ja active Application Filing
- 2003-10-02 JP JP2004542823A patent/JP4457013B2/ja not_active Expired - Fee Related
- 2003-10-02 AU AU2003272917A patent/AU2003272917A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62182247U (ja) * | 1986-05-09 | 1987-11-19 | ||
JPH0375835U (ja) * | 1989-11-22 | 1991-07-30 | ||
JP2000225172A (ja) * | 1999-02-05 | 2000-08-15 | Tanabe Seiyaku Co Ltd | 目薬容器及び目薬容器用の注出ノズル |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008002616A2 (en) * | 2006-06-28 | 2008-01-03 | Alcan Global Pharmaceutical Packaging, Inc. | Angled ophthalmic dropper tip |
WO2008002616A3 (en) * | 2006-06-28 | 2008-02-28 | Alcan Global Pharmaceutical Pa | Angled ophthalmic dropper tip |
Also Published As
Publication number | Publication date |
---|---|
AU2003272917A1 (en) | 2004-05-04 |
JPWO2004033332A1 (ja) | 2006-02-09 |
JP4457013B2 (ja) | 2010-04-28 |
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