WO2022202887A1 - 注射器 - Google Patents
注射器 Download PDFInfo
- Publication number
- WO2022202887A1 WO2022202887A1 PCT/JP2022/013426 JP2022013426W WO2022202887A1 WO 2022202887 A1 WO2022202887 A1 WO 2022202887A1 JP 2022013426 W JP2022013426 W JP 2022013426W WO 2022202887 A1 WO2022202887 A1 WO 2022202887A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- syringe
- deformable material
- gasket
- volume
- tip
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 61
- 239000000126 substance Substances 0.000 claims description 28
- 229940071643 prefilled syringe Drugs 0.000 claims description 5
- 239000003814 drug Substances 0.000 abstract description 38
- 229940079593 drug Drugs 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 31
- 239000007789 gas Substances 0.000 description 28
- 239000000243 solution Substances 0.000 description 21
- 239000010410 layer Substances 0.000 description 20
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 14
- 239000007787 solid Substances 0.000 description 6
- 229960001005 tuberculin Drugs 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229960005486 vaccine Drugs 0.000 description 3
- 239000000499 gel Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920002385 Sodium hyaluronate Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010255 intramuscular injection Methods 0.000 description 1
- 239000007927 intramuscular injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 229940010747 sodium hyaluronate Drugs 0.000 description 1
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(2s,3s,4s,5r,6r)-6-[(2s,3r,4r,5s,6r)-3-acetamido-2-[(2s,3s,4r,5r,6r)-6-[(2r,3r,4r,5s,6r)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2- Chemical compound [Na+].CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/20—Surgical instruments, devices or methods for vaccinating or cleaning the skin previous to the vaccination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
Definitions
- the present invention relates to a syringe, and more specifically to a syringe used for injection of vaccines and the like.
- an outer cylinder 2 having a tip 21 having a hole at one end and an opening 22 at the other end, as shown in FIG. 10(A), and the outer cylinder A syringe 1 is used which is composed of a gasket 3 provided so as to be able to seal and slide inside the syringe 2 and a plunger 4 connected to the gasket 3 .
- the syringe 1 having the above-described conventional structure is generally widely used.
- a space 23 and a space 62 in the needle tube are generated between the pore of the tube tip 21 provided at the tip of the plunger 4 and the gasket 3, and the contents such as the drug solution remain in the spaces 23 and 62.
- the chemical solution 8 and the like cannot be completely ejected.
- syringes have been proposed that have a structure in which the liquid medicine is less likely to remain inside the outer cylinder when the liquid medicine inside the syringe is injected (see Patent Documents 1 and 2).
- the proposed syringe is said to be capable of suppressing the residual of the liquid medicine by providing a protrusion that fits into the tip of the cylinder on the side of the gasket that extrudes the liquid medicine, thereby reducing the space in which the liquid medicine remains.
- the present invention has been made in view of the circumstances as described above, and provides a syringe that can be applied to conventional syringes and that can minimize the amount of residual liquid medicine when the liquid medicine is injected.
- the challenge is to
- the syringe of the present invention has been made to solve the above technical problems, and has the following features.
- the syringe of the present invention comprises an outer cylinder having a tip with a hole at one end and an opening at the other end, and a gasket provided so as to seal and slide inside the outer cylinder. and a plunger connected to the gasket,
- the gasket is characterized in that a layer of a deformable material whose shape can be freely deformed by an external pressure is provided on the surface of the gasket on the tube tip side.
- the deformable material is a gel-like substance that is difficult to dissolve in the contents of the syringe.
- the deformable material is any one of a gel-like substance, a gel-like substance, a clay-like substance, and a gummy-like substance.
- the volume of the deformable material pushes the plunger of the syringe, which is not provided with the deformable material, toward the tip of the syringe. is preferably equal to the volume of Fifth, in the syringe of the fourth aspect of the invention, it is preferable that the volume of the deformable material includes the volume of the space inside the needle tube when the injection needle is attached to the syringe.
- the deformable material is gas.
- the syringe of the sixth invention it is preferable that the syringe has a volume of 1 mL or less and the volume of the gas is 0.07 mL or less.
- the syringe is a prefilled syringe.
- the syringe of the present invention it is possible to apply it to a conventional syringe, and it is possible to suppress the residual of the liquid medicine as much as possible when the liquid medicine is injected.
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (F) of the method of introducing a deformable material into the syringe of the present invention
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (D) of another method of introducing a deformable material into the syringe of the present invention
- FIG. 4 is a schematic cross-sectional view showing procedures (E) to (H) of another method of introducing a deformable material into the syringe of the present invention
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (F) of the method of introducing a deformable material into the syringe of the present invention
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (D) of another method of introducing a deformable material into the syringe of the present invention
- FIG. 4 is a schematic cross-sectional view showing procedures (E) to (H) of another method
- FIG. 2 is a schematic cross-sectional view showing procedures (A) to (E) of a method for introducing a drug solution into the syringe of the present invention
- FIG. 10 is a photograph showing how the air layer is fixed to the gasket in a syringe provided with an air layer as a deformable material.
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (D) of a method for introducing an air layer as a deformable material into the syringe of the present invention.
- FIG. 4 is a schematic cross-sectional view showing procedures (A) to (C) for injecting a drug solution with the syringe of the present invention.
- FIG. 4 is a schematic cross-sectional view showing procedures (D) to (F) for injecting a drug solution with the syringe of the present invention
- (A) is a schematic cross-sectional view showing a conventional syringe
- (B) is a schematic cross-sectional view showing a state in which the plunger of the syringe of (A) has been completely pushed.
- the syringe of this embodiment is composed of a slidable gasket 3 and a pusher 4 connected to the gasket 3 .
- a layer of a deformable material 5 whose shape can be freely deformed by external pressure is provided on the surface of the gasket 3 on the tube tip 21 side.
- a layer of the deformable material 5 is provided on the surface of the gasket 3 of the conventional syringe on the tip 21 side, so that the deformable material 5 enters and buries the portion where the conventional drug solution remains after injection, thereby burying the drug solution. It becomes possible to almost eliminate the residue of 8.
- the deformable material 5 in the syringe 1 of the present embodiment is a substance that can be freely deformed in shape by external pressure. This deforms freely at least at room temperature and normal pressure, does not adversely affect the human body, and It is not particularly limited as long as it does not affect the effect of the content 8 when it comes into contact with the content 8, such as a chemical solution, and is not easily dissolved in the content 8.
- gel substances, Solids and semi-solids such as gel-like substances, clay-like substances and gummy-like substances can be used.
- examples of gel-like substances and gel-like substances include purified gelatin and purified sodium hyaluronate, and examples of clay-like substances and gummy-like substances include silicone rubber and polyisoprene as elastomers. can do.
- normal temperature and normal pressure means a range of 10 to 30° C. and 1000 Pa to 1050 Pa.
- the plunger 4 of the syringe 1 without the deformable material 5 is pushed all the way to the barrel tip 21 side, and the space 23 existing in the syringe 1 is accurately adjusted.
- the volume of the deformable material 5 is preferably equal to the volume of the space 23 that occurs within the syringe 1 as it needs to penetrate.
- the injection needle 6 is attached to the barrel tip 21, so strictly speaking, it is more preferable to consider the volume of the space 62 inside the needle tube 61 of the injection needle 6. That is, the volume of the deformable material 5 is preferably the sum of the volume of the space 23 inside the syringe 1 and the volume of the space 62 inside the needle tube 61 .
- the deformable material 5 is formed on the surface of the gasket 3 on the tube tip 21 side, but the forming method is not particularly limited. It may be formed by sucking a predetermined amount with the syringe 1 .
- a predetermined volume of the deformable material 5 is sucked into another syringe or the like, and the deformable material 5 is ejected from the other syringe and adhered to the surface of the gasket 3.
- a method of directly attaching the deformation material 5 to the surface of the gasket 3 a method of attaching the deformation material 5 to the gasket 3 using a case jig prepared by setting a predetermined volume of the deformation material 5 in the case is exemplified. can do.
- a method of sucking with the syringe for example, a method of sucking and forming the deformable material 5 in the vial 7 with a normal syringe 1 attached with a needle can be exemplified.
- the case jig 50 used in this method comprises a cylindrical case body 51 , a back cover 52 closing one side of the case body 51 , and a predetermined volume of the deformable material 5 disposed inside the case body 51 .
- the case body 51 is formed in a shape that allows the gasket 3 to be fitted without a gap. It is designed so that it can be fixed to
- the deformable material 5 used in this method is preferably a material that can hold a specific shape by itself and can be deformed by an external force. Further, in order to fix the deformable material 5 to the gasket 3 more reliably, an adhesive layer may be provided on the gasket 3 contact surface of the deformable material 5 .
- the case jig 50 and the normal syringe 1 are prepared in advance (Fig. 2(A)).
- the pusher 4 is pulled out from the syringe 1, the gasket 3 is taken out, the gasket 3 is fitted into the case body 51 of the case jig 50, and pressed against the deformation material 5 in the case jig 50 (Fig. 2(B)).
- the back cover 52 of the case jig 50 is removed (FIG. 2(C)), and the case body 51 of the case jig 50 is attached to the opening 22 of the outer cylinder 2 (FIG. 2(D)).
- the syringe 1 of the present invention can be completed through the series of procedures described above.
- the deformable material 5 used in this method is preferably a gel or a gel-like substance because the deformable material 5 must be directly sucked with the syringe 1 .
- an injection needle 6 of the same type as the injection needle used for injecting the drug solution is attached to an ordinary syringe and prepared (Fig. 3(A)). is pressed (Fig. 3(B)). If the deformable material 5 is a substance that softens when heated, it can be handled well by heating it to a predetermined temperature.
- the pusher 4 is pulled and sucked so that the amount of the deformable material 5 is larger than the predetermined amount (Fig. 3(C)), and the pusher 4 is pushed out (Fig. 3(D) - FIG. 4(E)). Then, the injection needle 6 is pulled out from the vial 7, or the air is released after the injection needle 6 is pulled out from the vial 7, and the plunger 4 is pushed out (Fig. 4(F)). Next, the pusher 4 is pulled to move the deformable material 5 accumulated in the needle tube and the needle tip space into the outer cylinder 2 . At this time, it is preferable to vibrate the syringe 1 from below. Also, if it is heated to a predetermined temperature, it will be easier to move.
- a preparation procedure for introducing the drug 8 into the syringe 1 of the present invention and making it ready for injection will be described with reference to FIGS. 5(A) to 5(E).
- a syringe 1 of the present invention is prepared by attaching an injection needle 6 (Fig. 5(A)), inserting this into a vial 7 containing a medicine 8, and pushing a pusher 4 (Fig. 5(B)). .
- the deformable material 5 does not enter the space of the tip 21 .
- the plunger 4 is pulled to introduce the drug 8 into the outer cylinder 2 so that the amount of the drug 8 is larger than the specified amount (Fig. 3(C)). (Fig. 3(D)).
- the injection needle 6 is pulled out from the vial 7 (Fig. 5(E)).
- Introduction of the drug 8 into the syringe 1 of the present invention can be completed by the above series of procedures.
- gas in addition to the solid matter and semi-solid matter in the above embodiments as the deformable material provided on the barrel tip side surface of the gasket 3 . That is, in a state where the syringe 1 is filled with the drug solution 8, the gas layer 53 can be provided on the surface of the gasket 3 on the tube tip side.
- the gas layer 53 When the gas layer 53 is provided on the surface of the gasket 3, in order to prevent the gas 53 from being injected, the gas layer 53 having a volume less than the volume of the space 23 (dead space) of the syringe 1 is reliably formed by surface tension. It must be fixed to the gasket 3. Therefore, with regard to the syringe 1 of this embodiment, the dead space present in the syringe 1 is limited to a syringe with a specific volume.
- tuberculin tuberculin with an outer cylinder inner diameter of 5 mm or less and a volume of 1 mL or less.
- a syringe is preferred.
- the volume of the gas layer 53 provided on the surface of the gasket 3 when the chemical solution 8 is injected when the syringe 1 under the above conditions is used can be obtained from the following calculation. For example, in an environment with a temperature of 20° C. (293 K) and an atmospheric pressure of 1013 hPa, the gas 53 and the drug solution 8 are injected into the syringe 1, and the room temperature at the time of injection is ⁇ 8° C. (12° C.
- the space existing in the syringe 1 under the above conditions is calculated to be approximately 0.07 mL. From the above point of view, it is considered that the volume of the gas layer 53 provided on the surface of the gasket 3 is 0.07 mL or less. Further, the shape in which the gas 53 stably settles on the surface of the gasket 3 inside the syringe is a spherical bubble.
- the following shows an experiment that confirmed the fixation state of the gas layer 53 to the gasket 3 when the gas layer 53 with a volume of 0.07 mL was provided on the gasket 3 of a thin tuberculin syringe.
- a thin tuberculin syringe with an inner diameter of 4.6 mm and a volume of 1 mL was filled with blue water and air as the chemical solution 8 .
- the gas 53 was filled up to a position of 4.2 mm on the scale of the syringe, so that the gas volume was 0.07 mL.
- the gas layer 53 was fixed to the gasket 3 under the above conditions.
- the syringe 1 was rotated in the upright, depression, horizontal, elevation, and handstand states, and the fixation state of the gas layer 53 was confirmed. From the results shown in FIG. 6, it was confirmed that the gas layer 53 did not separate from the surface of the gasket 3 under the above conditions, and stable fixation could be maintained.
- the gas 53 used in this embodiment air, nitrogen, or the like can be exemplified, but from the viewpoint of higher safety, the gas enclosed in the vial is used as the gas 53 that does not affect the contacting vaccine drug solution. is more desirable.
- the syringe 1 using the gas 53 as the deformable member of the present embodiment it is possible to manufacture it with an existing production facility of the vacuum capping method. Specifically, as shown in FIG. 7, first, the plunger 4 is pulled out from the syringe 1, and with the gasket 3 taken out, the barrel tip 21 is turned downward and sealed with a stopper 71, and the opening of the outer barrel 2 is closed. 22, the chemical liquid 8 and the gas 53 (nitrogen gas) are injected into the outer cylinder 2 (FIG. 7(A)). Next, the gas 53 in the outer cylinder 2 is decompressed by holding the gasket 3 with a retainer 72 attached with a plugging rod 73 (FIG.
- the syringe 1 is preferably a prefilled syringe.
- a prefilled syringe is not a syringe used by sucking up the drug solution 8 from an ampoule or a vial into the syringe at the time of injection, but a type of syringe filled with a drug in advance.
- FIG. 8(A) the injection needle 6 is pierced into the skin 9 so as to reach the muscle 92 through the epidermis 91.
- the pusher 4 is pressed to inject the drug solution 8 into the muscle 92 (FIGS. 8(B) to (C)).
- the deformable material 5 enters the space 23 inside the tube tip 21 (FIG. 9(D)), and then further deforms to enter the internal space 62 of the needle tube 61 .
- the gasket 3 stops at the tube tip 21 side in the outer tube 2, but since the deformable material 5 is provided in advance in a volume in which the conventional chemical liquid 8 remains, the deformable material 5 is needle-shaped. It stays in the space 23 inside the barrel tip and in the space 62 of the needle tube 61 without being ejected from the tip (FIGS. 9(E) and (F)).
- the drug solution 8 does not remain in the outer cylinder 2 and the needle tube 61 due to the series of mechanisms described above, and the injection can be completed without waste.
- the volume of the deformable material 5 is set in consideration of the volume inside the needle tube 61. However, if the volume of the space 62 inside the beam tube is negligible, the volume of the deformable material 5 It is also possible to set only the volume of the space 23 in the outer cylinder 2 without including the volume in the needle tube 61 in .
- the syringe 1 of the present invention having the above configuration, it can be applied to a conventional syringe, and it becomes possible to suppress the residual of the liquid medicine 8 as much as possible when the liquid medicine 8 is injected.
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Abstract
Description
第1に、本発明の注射器は、一端に細孔を有する筒先が設けられるとともに、他端に開口部が設けられた外筒と、該外筒内を密閉かつ摺動可能に設けられたガスケットと、該ガスケットに接続された押し子で構成される注射器であって、
前記ガスケットの前記筒先側表面に、外圧により形状が自在に変形可能な変形材料の層が設けられていることを特徴とする。
第2に、上記第1の発明の注射器において、前記変形材料が、前記注射器の内容物に溶解し難いゲル状の物質であることが好ましい。
第3に、上記第1又は第2の発明の注射器において、前記変形材料が、ゲル状物質、ジェル状物質、粘土状物質、グミ状物質のいずれかであることが好ましい。
第4に、上記第1から第3の発明の注射器において、前記変形材料の体積が、該変形材料を設けない前記注射器の押し子を筒先側に押し切った状態で、前記注射器内に存在する空間の体積と同等であることが好ましい。
第5に、上記第4の発明の注射器において、前記変形材料の体積が、前記注射器に注射針を取り付けた状態における針管内の空間の体積を含むことが好ましい。
第6に、上記第1の発明の注射器において、前記変形材料が、気体であることが好ましい。
第7に、上記第6の発明の注射器において、前記注射器が、容量1mL以下の注射器であり、前記気体の体積が0.07mL以下であることが好ましい。
第8に、上記第1から第7の発明の注射器において、前記注射器が、プレフィルドシリンジであることが好ましい。
熱膨張率:(8・3/4+293)/293×気圧膨張率:(25・3/4+1013)/1013=1.0393661、V:0.073mL/1.0393661=0.0702351
から、上記条件における注射器1内に存在する空間は、約0.07mLと算出される。上記の観点から、ガスケット3の表面に設ける気体層53の体積は、0.07mL以下であることが考慮される。また、シリンジ内のガスケット3表面に気体53が安定して定着する形状は球形気泡である。
本発明の注射器1によれば、上記一連の機序により薬液8は外筒2内及び針管61内に残留することなく無駄なく注射を完了することが可能となる。
Claims (8)
- 一端に細孔を有する筒先が設けられるとともに、他端に開口部が設けられた外筒と、該外筒内を密閉かつ摺動可能に設けられたガスケットと、該ガスケットに接続された押し子で構成される注射器であって、
前記ガスケットの前記筒先側表面に、外圧により形状が自在に変形可能な変形材料の層が設けられていることを特徴とする注射器。 - 前記変形材料が、前記注射器の内容物に溶解し難いゲル状の物質であることを特徴とする請求項1に記載の注射器。
- 前記変形材料が、ゲル状物質、ジェル状物質、粘土状物質、グミ状物質のいずれかであることを特徴とする請求項1又は2に記載の注射器。
- 前記変形材料の体積が、該変形材料を設けない前記注射器の押し子を筒先側に押し切った状態で、前記注射器内に存在する空間の体積と同等であることを特徴とする請求項1から3のいずれか一項に記載の注射器。
- 前記変形材料の体積が、前記注射器に注射針を取り付けた状態における針管内の空間の体積を含むことを特徴とする請求項4に記載の注射器。
- 前記変形材料が、気体であることを特徴とする請求項1に記載の注射器。
- 前記注射器が、容量1mL以下の注射器であり、前記気体の体積が0.07mL以下であることを特徴とする請求項6に記載の注射器。
- 前記注射器が、プレフィルドシリンジであることを特徴とする請求項1から7のいずれか一項に記載の注射器。
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Citations (3)
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JP2007517613A (ja) * | 2004-01-09 | 2007-07-05 | ベクトン・ディキンソン・アンド・カンパニー | 押し込み変位洗浄注射器 |
US20120271245A1 (en) * | 2011-04-21 | 2012-10-25 | Achan Jr Leonard | Malleable stopper for a syringe |
JP2020150998A (ja) * | 2019-03-18 | 2020-09-24 | 住友ベークライト株式会社 | シリンジ |
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JP2007517613A (ja) * | 2004-01-09 | 2007-07-05 | ベクトン・ディキンソン・アンド・カンパニー | 押し込み変位洗浄注射器 |
US20120271245A1 (en) * | 2011-04-21 | 2012-10-25 | Achan Jr Leonard | Malleable stopper for a syringe |
JP2020150998A (ja) * | 2019-03-18 | 2020-09-24 | 住友ベークライト株式会社 | シリンジ |
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