JP2013000489A - Spray container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability and production efficiency though the number of components is small and a structure is simple by forming a narrow part in an intermediate part of a syringe wherein both the ends are open.SOLUTION: This spray container includes: the syringe 10 which has the narrow part 11a in the intermediate part and wherein both the ends are opened; a stopper 20 made of an elastic body closing the narrow part 11a; a nozzle tip 30 mounted in the front end of the syringe 10; and a plunger 50 inserted from the rear end of the syringe 10. A preparation T and a solution W are respectively stored in a first chamber R1 of a front part and a second chamber R2 of a rear part of the syringe 10.

Description

  The present invention is a spray that can be used by dissolving a preparation prepared in the form of a tablet or powder and its solution separately and dissolving the preparation by a simple operation at the time of use and spraying it as a chemical solution. Concerning the container.

  2. Description of the Related Art A syringe is known in which a preparation in preparation for use and a solution are separated and stored in a syringe, and a preparation is prepared by dissolving the preparation immediately before use (Patent Document 1).

  A conventional syringe has a neck portion formed in the front portion of a syringe that opens the front end and closes the rear end, and closes the rear end of the neck portion through an elastic plug, thereby storing a preparation chamber. Is formed at the rear part of the syringe, and a storage chamber for the solution is formed at the neck part at the front part of the syringe. The front end of the syringe is closed by inserting a seal member at the rear end of the plunger formed of a hollow rod with a shaft hole, and an injection needle is attached to the front end of the plunger. Therefore, when the rear end of the syringe is pushed and the seal member of the plunger is relatively moved into the neck portion, the stopper is moved rearward by the pressure of the dissolving solution, the neck portion is opened, and the dissolving solution is stored in the storage chamber for the preparation. To dissolve the preparation. Further, when the syringe is pushed and the seal member of the plunger passes through the neck portion, the drug solution is supplied to the shaft hole of the plunger through the radial hole of the seal member and can be injected by the injection needle at the tip of the plunger.

  The plunger and the syringe are each housed in a protective outer cylinder. The outer cylinder for the plunger is flange-coupled to the front end of the plunger, and the outer cylinder for the syringe is flange-coupled to the rear end of the outer cylinder for the plunger. An operation piece for pushing operation is attached to the rear end of the syringe, and the operation piece protrudes from the rear end of the outer cylinder for the syringe. Therefore, by pushing the entire length of the operation piece into the outer cylinder for the syringe, it is possible to define the drive amount of the syringe for completing the preparation process before injection. When the syringe is pushed, the syringe enters between the plunger and the outer cylinder for the plunger, and when injecting the drug solution, only the outer cylinder for the syringe is removed. Also, if a nozzle tip is attached to the front end of the plunger instead of the injection needle, it can be used for spraying.

Japanese Examined Patent Publication No. 4-36029

  According to such a conventional technique, the syringe that closes the rear end stores the preparation from the front end in the rear preparation storage chamber, loads the stopper, closes the neck portion, and then supplies the solution to the neck portion. Since it is necessary to store, if a solution such as liquid leakage occurs when storing the solution, not only the expensive drug product becomes defective, but the manufacturing efficiency is not good, and the number of necessary parts is large and the overall configuration is complicated. In addition, there is a problem in that the operation of removing the outer cylinder for the syringe is complicated and not easy to use.

  Therefore, in view of the problems of the prior art, the object of the present invention is to form a constricted portion in the middle portion of a syringe with both ends open, so that the number of parts is small and the structure is simple, but the usability is good and the production efficiency is high. It is in providing the spray container which can aim at improvement of this.

  In order to achieve this object, the structure of the present invention includes a syringe having both ends open at the middle, an elastic plug that closes the constriction, a nozzle tip attached to the front end of the syringe, and a syringe. A plunger is inserted from the rear end, and an elastic seal member is connected to the front end of the plunger. The syringe is loaded with the stopper in the constricted portion, and the solution is stored in the second chamber behind the stopper. Then, the sealing member is inserted from the rear end, the preparation is stored in the first chamber in front of the plug body, the nozzle tip is attached, and the plunger is advanced. The gist is that when the abutment comes into contact with the plug, the entire amount of the solution in the second chamber flows into the first chamber to dissolve the preparation.

  The seal member can be separated from the plunger and inserted into the syringe, or can be connected to the plunger and inserted into the syringe.

  The plunger can include a removable stopper that defines an insertion stroke when the entire amount of the solution in the second chamber flows into the first chamber.

  Further, the seal member may be provided with a protrusion that fits into the recess on the rear end surface of the plug body on the front end surface, and the syringe may have an axial groove formed on the inner surface of the rear end portion.

  According to the configuration of this invention, the syringe with both ends opened separately stores the preparation and the dissolved solution in the first chamber and the second chamber before and after the elastic plug that closes the narrowed portion of the middle portion, respectively. Can do. However, the preparation may be either a powder or a tablet, and the stopper is loaded into the constriction from the front end of the syringe toward the rear. In addition, a nozzle tip and a seal member are attached to the front end and the rear end of the syringe, respectively. Therefore, when the plunger inserted from the rear end of the syringe is pushed to advance the seal member, the stopper moves forward by the pressure of the solution in the second chamber, and the constriction is opened, and the seal is made via the plunger. As the member is advanced, the solution in the second chamber flows into the first chamber, and when the seal member at the tip of the plunger comes into contact with the rear end of the plug body in front of the constriction, the entire amount of the solution is transferred to the first chamber. It is possible to prepare a chemical solution having a predetermined concentration by inflowing and dissolving the preparation. Thereafter, if it is confirmed that the preparation is completely dissolved and the seal member is further advanced together with the plunger, the drug solution in the first chamber can be sprayed to the outside via the nozzle tip.

  Since the syringe is open at both ends, the solution is stored in the second chamber behind the plug body from the rear end, and then turned upside down to store the preparation in the first chamber in front of the plug body from the front end. Can do. Therefore, there is no possibility that an expensive preparation is discarded due to troubles when filling the solution, and the production efficiency can be improved. In addition, each member including the syringe and the plunger may have a simple configuration that can be integrally formed, has a small number of parts, and can achieve the same good usability as a general syringe.

  The elastic sealing member attached to the plunger is smooth through the plunger while liquid-tightly sealing the inner surface of the syringe from the second chamber at the rear of the syringe to the first chamber at the front through the narrowed portion at the middle. You can move forward. However, the sealing member may be in a single state separated from the plunger when the solution is stored in the second chamber and inserted from the rear end of the syringe, or may be in a state of being integrally connected to the plunger. Good. In the former case, a separate plunger is inserted from the rear end of the syringe and connected to the seal member, and the plunger is pushed to advance the seal member. If only the seal member is inserted into the syringe alone, there is no risk of the seal member moving forward due to an erroneous operation. If the seal member integrally connected to the plunger is inserted into the syringe, the plunger can be stored separately, There is no need to connect the device to the seal member in the syringe.

  By attaching a removable stopper to the plunger, it is possible to prevent erroneous administration before the preparation is dissolved. In addition, the seal member pushes the plug body forward in the first chamber correctly through the protrusion on the front end surface that fits into the recess on the rear end surface of the plug body, and reduces a wasteful gap generated between the plug member and the plug body. Thus, the remaining amount of the solution can be minimized.

  If an axial groove is formed on the inner surface of the rear end portion of the syringe, when the plunger is inserted into the rear end, air can be vented through the groove, and the plunger can be inserted smoothly. In addition, what is necessary is just to form one or more groove | channels in the axial direction of a syringe, and it is preferable to provide many groove | channels in the inner periphery at equal intervals.

Whole structure exploded perspective view Overall configuration longitudinal section 2 is an enlarged view of the main part of FIG. Explanatory diagram of enlarged cross section of the main part of FIG. Fig. 2 is an enlarged exploded view of the main part (1). 2 is an enlarged exploded view of the main part of FIG. FIG. Operation explanatory diagram (1) Operation explanatory diagram (2) Operation explanatory diagram (3)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The spray container includes a syringe 10, a plug 20, a nozzle tip 30, and a plunger 50 (FIGS. 1 and 2). In FIG. 2, a powder preparation T and a solution W, which are separately stored in the syringe 10 at the front and rear of the stopper 20, are also illustrated.

  The syringe 10 is formed by attaching wing-like finger hooks 12 and 12 symmetrically at the rear end of a cylindrical main body 11 having both ends open. The front side of each finger hook 12 is formed into a smooth bowl-shaped curved surface, and is provided with anti-slip ribs 12a, 12a. The syringe 10 is integrally formed of a hard plastic material such as PP.

  A narrowed portion 11a into which the plug body 20 is loaded is formed in the middle portion of the main body 11 (FIGS. 2 and 3). The inner diameter da of the narrowed portion 11 a is da <d with respect to the inner diameter d of the main body 11. The front end and the rear end of the narrowed portion 11a are continuous with the inner periphery of the main body 11 via an annular steep tapered surface 11a1 and a loose tapered surface 11a2, respectively. However, the inclination angle θ1 of the front taper surface 11a1 is approximately 45 °, and the inclination angle θ2 of the rear taper surface 11a2 is << 45 °.

  Short axial grooves 11c, 11c,... Are formed on the inner surface of the rear end portion of the main body 11 via a short large diameter portion 11b having an inner diameter db> d (FIGS. 2 and 4A). 4A and 4B are enlarged cross-sectional views corresponding to the X1-X1 line and the X2-X2 line in FIG. 2, respectively.

  A receiving portion 11d for mounting the nozzle chip 30 via the adapter 40 is formed at the front end portion of the main body 11 (FIGS. 2 and 5). The receiving portion 11d is formed with an annular engaging recess 11d1 adapted to the upward engaging rib 41a on the outer periphery of the adapter 40.

  The plug body 20 is integrally formed in a substantially cylindrical shape by an elastic body such as an olefin resin having appropriate elasticity or an elastomer of synthetic rubber (FIGS. 1 and 6). A large-diameter outer flange 21 is formed at the front end portion of the plug body 20, annular seal ribs 22 and 22 are formed in parallel at the middle portion and the rear portion, and a shallow round hole-shaped concave portion 23 is formed at the rear end surface. Is formed on the axis. In addition, axial notches 21a, 21a,... Are arranged on the outer periphery of the outer flange 21 in an axially symmetrical manner (FIGS. 1 and 4B). The outer flange 21 is adapted to the inner diameter d of the main body 11 of the syringe 10 (FIG. 3), and the seal ribs 22 and 22 are adapted to the inner diameter da of the narrowed portion 11a. Therefore, the plug body 20 is loaded into the constriction portion 11a from the front end side of the syringe 10 so as to elastically close the constriction portion 11a via the seal ribs 22 and 22, and the inside of the syringe 10 is disposed before and after the plug body 20. The chamber can be divided into a first chamber R1 and a second chamber R2.

  The nozzle tip 30 is attached to the front end of the syringe 10 via the adapter 40 (FIGS. 2 and 5).

  The nozzle chip 30 is formed by suspending a skirt portion 32 on the lower surface of the top plate 31. The outer periphery of the top plate 31 is formed on a large-diameter outer flange 31a, and an upward engagement rib 32a is formed on the outer periphery of the intermediate portion of the skirt portion 32. A nozzle hole 33 is formed at the center of the top plate 31 (FIGS. 5 and 7A). 7A to 7C are enlarged views corresponding to the arrows Y1 and Y2, arrows corresponding to the arrows Y2 in FIG. 5, respectively.

  The nozzle hole 33 is provided with a frustoconical opening 33 a that opens on the lower surface side of the top plate 31. In addition, on the lower surface of the top plate 31, spiral passages 34, 34... Opening toward the outer periphery of the widened portion 33a are formed, and each passage 34 is smooth with respect to the common circular groove 34a on the outer periphery. It is connected and formed to have a width that gradually decreases toward the widened portion 33a on the inner periphery. However, the circular grooves 34a are deeper than the respective passages 34, and circular ribs 35 that are divided by the passages 34, 34... Are formed in the immediate inner periphery of the circular grooves 34a.

  The adapter 40 is formed by integrally molding a double cylindrical main body 41 and an outer flange 42 at the front end of the main body 41 (FIGS. 5, 7 </ b> B, and 7 </ b> C). The main body 41 is formed with an upward engagement rib 41 a that fits the receiving portion 11 d at the front end of the main body 11 of the syringe 10, and the outer diameter of the outer flange 42 is adapted to the outer diameter of the main body 11. A circular recess 43 capable of accommodating the outer flange 31a of the nozzle tip 30 is formed on the upper surface of the outer flange 42, and a deep circular groove 43a into which the skirt portion 32 of the nozzle tip 30 can be inserted is formed in the recess 43. ing. Further, the circular groove 43a is formed in the axial direction with passages 44, 44... Having a substantially rectangular cross section whose outer peripheral side is curved in an arc shape, and each passage 44 is formed from the lower surface of the main body 41 to the outer flange. It penetrates to the recess 43 on 42. A cylindrical portion 43b is formed at the center of the concave portion 43, and a deep round hole 43c is formed on the rear surface of the cylindrical portion 43b.

  Therefore, the nozzle tip 30 can be combined with the adapter 40 and attached to the front end of the main body 11 of the syringe 10 (FIGS. 2 and 5). At this time, the tip of the cylindrical portion 43b of the adapter 40 is fitted inside the circular rib 35 on the nozzle tip 30 side, so that the nozzle tip 30 and the adapter 40 can be aligned. The nozzle tip 30 and the adapter 40 are integrally formed of, for example, a hard plastic material. When the chemical solution is supplied from the rear side of the adapter 40, the chemical solution turns into a swirling flow into the widened portion 33a of the nozzle hole 33 through the passages 44, 44... Of the adapter 40 and the passages 34, 34. It flows in and can be continuously sprayed from the nozzle hole 33 to the outside. The top surfaces of the nozzle tip 30 and the adapter 40 are detachably sealed through a common seal 39 (FIGS. 1 and 2). A peel knob 39 a is attached to the seal 39.

  The plunger 50 can connect the seal member 60 to the tip of the rod 51 (FIGS. 1 and 2).

  The rod 51 is formed in a cross shape in cross section (FIGS. 1 and 4A). A disc-shaped push plate 52 is formed at the rear end of the rod 51 (FIGS. 1 and 2), and on the rear surface of the push plate 52, straight ribs 52a, 52a,. Further, a flag-like stopper 53 is attached to the rear portion of the rod 51. The stopper 53 is connected to the rod 51 and the push plate 52 via connecting portions 53a and 53b having a small cross-sectional area, and can be easily detached from the rod 51 and the push plate 52 by breaking the connecting portions 53a and 53b. It is. In addition, a notch 53c that can engage the rear end of the main body 11 of the syringe 10 is formed on one side of the front side of the stopper 53.

  A locking rod 54 for connecting the seal member 60 is projected from the front end of the rod 51 (FIGS. 1 and 6). A frustoconical locking portion 54 a is attached to the tip of the locking rod 54, and the locking rod 54 is erected at the center of a disk-shaped sheet 54 b at the front end of the rod 51. A series of members of the rod 51, the push plate 52, the stopper 53, and the locking rod 54 are integrally formed of a hard plastic material such as HDPE or PP.

  The seal member 60 is integrally formed in a substantially cylindrical shape by an appropriate elastic elastic body similar to the plug body 20. On the front end surface of the seal member 60, a columnar protrusion 61 projects from the axial center via a low frustoconical tip 61a. However, the protrusion 61 can be fitted into the recess 23 on the rear end surface of the plug body 20. Further, annular seal ribs 62, 62... Are formed in parallel on the outer periphery of the seal member 60, and the rear end surface of the seal member 60 is fitted to the locking rod 54 with the locking portion 54 a at the front end of the rod 51. A fitting hole 63 is formed on the axis. The seal ribs 62, 62... Fit the inner diameter d of the main body 11 of the syringe 10. Further, the seal member 60 can pass through the narrowed portion 11a of the main body 11 from the rear to the front.

  Therefore, the plunger 50 connects the seal member 60 to the tip of the rod 51 and inserts it from the rear end of the syringe 10 (FIG. 2), and seals the inner surface of the syringe 10 liquid-tightly via the seal member 60. The sealing member 60 can be smoothly advanced from the rear second chamber R2 to the front first chamber R1 through the middle narrowed portion 11a.

  The procedure for using such a spray container is, for example, as follows.

  First, the stopper 20 is loaded from the front end side of the main body 11 of the syringe 10 into the narrowed portion 11a at the intermediate portion, and the narrowed portion 11a is closed elastically (FIG. 3). Subsequently, from the rear end side of the main body 11, a predetermined amount of the solution W is stored in the second chamber R 2 behind the plug body 20, and the plunger 50 with the seal member 60 is inserted from the rear end of the main body 11. Two chambers R2 are sealed. Thereafter, the syringe 10 is turned upside down so that a predetermined amount of the preparation T is stored in the first chamber R1 in front of the plug body 20 from the front end side of the main body 11, and the nozzle tip 30 is connected to the front end of the main body 11 via the adapter 40. Wear. The front end surfaces of the nozzle tip 30 and the adapter 40 are previously sealed with a common seal 39. As described above, the initial state of FIG. 2 can be realized. However, the seal 39 does not directly contact the front surface of the nozzle chip 30 in which the nozzle hole 33 is opened, and there is no possibility of affecting the shape of the nozzle hole 33.

  When using the preparation T, the nozzle tip 30 and the seal 39 on the front end face of the adapter 40 are peeled off, and the plunger 50 is pushed into the syringe 10 to advance (in the direction of the arrow in FIG. 2). At this time, the plug 20 receives pressure from the plunger 50 through the solution W in the second chamber R2, and escapes to the front of the constricted portion 11a to open the constricted portion 11a (FIG. 8). Therefore, the solution W in the second chamber R2 flows into the first chamber R1 in front through the gap around the plug body 20 and the axial cutouts 21a, 21a. (In the direction of the arrow in FIG. 8).

  Subsequently, when the plunger 50 is further advanced and the seal member 60 of the plunger 50 comes into contact with the plug body 20 in front of the narrowed portion 11a (FIG. 9), the total amount of the solution W in the second chamber R2 is the first chamber. Flows into R1. At this time, the stopper 53 of the plunger 50 abuts against the rear end of the main body 11 via the notch 53c to define the insertion stroke of the plunger 50. Further, the seal member 60 enters the constricted portion 11a, and the protrusion 61 on the front end surface is fitted into the recess 23 on the rear end surface of the plug body 20. Therefore, for example, by shaking the whole left and right (in the direction of the arrow in FIG. 9, a two-dot chain line), the preparation T can be dissolved in the solution W in the first chamber R1, and a drug solution having a predetermined concentration can be prepared.

  After that, when the stopper 53 is removed from the plunger 50 and removed, and the plunger 50 is further advanced (in the direction of the arrow in FIG. 10), the seal member 60 passes through the constricted portion 11a and pushes the plug body 20 while in the first chamber R1. The total amount of the chemical liquid Tw in the first chamber R1 can be sprayed from the nozzle tip 30 to the outside at once. As described above, when the plunger 50 is advanced from the preparation state of FIG. 2 to the spray state of FIG. 10 through the preparation state of FIG. 9, the index finger and the middle finger are hung on the finger hooks 12 and 12 of the syringe 10, By pressing the push plate 52 with the thumb, one-handed operation is possible as in a general syringe.

  In the above description, when the solution W is stored in the second chamber R2 behind the main body 11 and the second chamber R2 is sealed, only the seal member 60 is separated from the plunger 50 and inserted from the rear end of the main body 11. can do. When the preparation T is used, the plunger 50 is inserted from the rear end of the main body 11, and the plunger 50 is pushed to connect the seal member 60 to the tip of the plunger 50 in the main body 11. What is necessary is just to advance the sealing member 60 continuously.

  The stopper 53 of the plunger 50 can be arbitrarily changed in its overall shape as long as the plunger 50 is defined by the insertion stroke of FIG. 9 and can be easily removed thereafter. The same applies to the shapes of the push plate 52 of the plunger 50 and the finger hooks 12 and 12 of the syringe 10.

  The present invention can be widely and suitably applied to a preparation T that is dissolved at the time of spraying and administered to the nostril or oral cavity.

T ... Preparation W ... Dissolved solution R1 ... 1st chamber R2 ... 2nd chamber 10 ... Syringe 11a ... Narrow part 11c ... Groove 20 ... Plug body 23 ... Recess 30 ... Nozzle tip 50 ... Plunger 53 ... Stopper 60 ... Seal member 61 ... Protrusion
Patent applicant Shingo Chemical Co., Ltd.

Claims (6)

  A syringe open at both ends having a stenosis part in the middle part, an elastic plug that closes the stenosis part, a nozzle tip attached to the front end of the syringe, a plunger inserted from the rear end of the syringe, and the plunger An elastic seal member connected to the distal end of the seal member, the syringe is loaded with the plug body in the constricted portion, and a solution is stored in a second chamber behind the plug body to seal the seal member. Is inserted from the rear end, the preparation is stored in the first chamber in front of the plug body, the nozzle tip is attached, and when the plunger is advanced, the plug body advances to open the narrowed portion, When the plunger comes into contact with the stopper, the total amount of the solution in the second chamber flows into the first chamber to dissolve the preparation.   The spray container according to claim 1, wherein the sealing member is separated from the plunger and inserted into the syringe.   The spray container according to claim 1, wherein the seal member is connected to the plunger and inserted into the syringe.   The said plunger is provided with the detachable stopper which prescribes | regulates an insertion stroke when the whole quantity of the solution of the said 2nd chamber flows in into the said 1st chamber. Spraying container.   The spray container according to any one of claims 1 to 4, wherein the seal member is provided with a protrusion on the front end face that fits into a recess on the rear end face of the plug body.   The spray container according to any one of claims 1 to 5, wherein the syringe forms an axial groove on an inner surface of a rear end portion.

Images