JP5870365B2 - Disposable fluid ejection member for ejecting fluid in a container in a desired state - Google Patents

Description

The present invention relates to a fluid discharge member provided in a container body such that a part of the container body is exposed.
The present invention relates to a fluid discharge member provided in an ampoule used for needleless injection or a sprayer, for example.

  In recent years, needle-free injectors are known as an alternative to syringes having injection needles. In a conventional needleless syringe, a predetermined amount of liquid medicine is sucked into the syringe barrel from the vial, and then the syringe barrel into which the medicine has been sucked is reattached to the injector. Thereafter, the drug is ejected at a high speed by applying a syringe at a predetermined location and firing the drug. Thus, handling of the syringe until the drug is sucked and the drug is fired is complicated. In addition, it is not always easy to administer an appropriate amount of drug. Furthermore, there is a problem in terms of hygiene because viruses and the like may adhere to the opening surface and propagate. Therefore, it is preferable to prepare a sealed medicine for each medicine to be administered once, and to open and administer each medicine.

  A disposable ampoule used for such a needleless syringe is disclosed in WO2008 / 056442. In this ampoule, the sealed container end and the container body are formed of different materials. And after a chemical | medical solution is filled in the container main-body part, a sealed container edge part is attached to a container main-body part, and seals a container main-body part. The end of the sealed container has a tip that is removed when a drug solution is administered using an ampoule. The ampoule has a continuous space extending from the container main body part to the middle of the front end of the sealed container end, and when the front end is removed, the continuous space becomes an open end and can eject the drug solution. The tip of the end of the sealed container is removed by cleavage.

  However, when the component is very small, such as an ampoule for a needleless syringe, accurate and fine work is required to fit the sealed container end from the outside into the container body. Become. Therefore, in order to manufacture such an ampoule with high yield, precision is required, and the manufacturing apparatus tends to be expensive.

  Moreover, when removing the front-end | tip part of a sealed container end in use, it is necessary to apply force with respect to a front-end | tip part from a horizontal direction. As described above, when the end of the sealed container is fitted to the container body from the outside, there is a gap between the end of the sealed container and the fitting part of the ampoule when a force is applied to the tip. Occurs, sealing is not maintained, causing liquid leakage.

  Moreover, since the ampule for needleless injection injects the chemical | medical solution in a container main-body part at high speed, a high pressure will be applied in the injection direction of a chemical | medical solution at the time of injection. For this reason, if the structure is such that the end of the sealed container is fitted to the container body from the outside, if the end of the sealed container is unsatisfactory in its manufacturing accuracy, it is attached to the container body by the pressure during injection. The end of the sealed container may come off.

  The ampoule is provided with a continuous space extending from the container main body part to the middle of the tip of the sealed container part, and the tip of the ampoule is removed by cleaving to form a chemical solution ejection port. In such a configuration, the medical solution is ejected by pressing the opening surface around the ejection port formed by removing the tip portion against the patient's skin or the like. Therefore, when the cleaving property of the front end of the sealed container portion is not sufficient and a prickling or the like remains on the opening surface, the patient's skin pressing the opening surface is damaged.

  In addition, if the cross section generated by removing the tip is used as a discharge port, such as this ampoule, the shape of the discharge port, that is, unevenness and dimensions (length and diameter) change, and fluid discharge becomes unstable. It is possible that That is, in the case of a needleless syringe, in order for the fluid to penetrate the epidermis, an extremely fine fluid flow that is powerful and free from turbulence is required. In addition, in the case of a nebulizer, in order to spread the fluid neatly, a neat discharge port that performs rapid constriction and opening is required.

  In addition, such an ampoule is opened in a cantilevered manner without penetrating pores having a diameter of 0.01 mm to 0.5 mm, for example, in a sealed container step, which is a difficult workmanship. I can say that.

WO2008 / 056442

  An object of the present invention is to provide a fluid discharge member that can be easily attached to a container body.

  It is another object of the present invention to provide a fluid ejection member that can easily remove a member that protects a portion from which fluid is ejected.

  It is another object of the present invention to provide a fluid discharge member that does not leak fluid even when a fluid filled in a container body is ejected.

  In addition, the present invention provides a fluid that does not hurt the skin of the patient who presses the opening surface even when the cleaving property of the member that protects the portion from which the fluid is discharged is not sufficient and the opening surface remains crinkled. An object is to provide a discharge member.

  It is another object of the present invention to provide a fluid discharge member capable of accurately forming a fluid flow path filled in a container body in advance.

  Furthermore, an object of the present invention is to provide an ampoule including the fluid discharge member.

  The fluid discharge member according to the present invention is held in the container body so that a previously formed fluid discharge port is exposed. The exposed discharge port is protected by the protection unit. At this time, the space provided in the protection part covers the exposed discharge port. By having such a configuration, the fluid ejection member according to the present invention is stably held in the container body. Moreover, since the flow path of the fluid discharge member according to the present invention can be formed with high accuracy in advance, it is possible to always discharge the fluid in a desired state.

  A fluid ejection member 100 (200) according to the present invention includes a fluid ejection part 2, a holding part 3, a protection part 4, and a connecting part 5. The fluid discharge part 2 has an exposed part 21 exposed from the container body 1 in which the fluid is accommodated. The holding part 3 holds the fluid discharge part 2 at one end in the container main body 1 so that the exposed part 21 of the fluid discharge part 2 is exposed from the container main body 1. The protection part 4 has a groove part 41 having a size corresponding to the exposed part 21 of the fluid discharge part 2. The connection part 5 connects the protection part 4 and the holding part 3 so that the groove part 41 of the protection part 4 covers the exposed part 21 of the fluid discharge part 2. The connecting portion 5 is made of a material thinner than the holding portion 3 and the protecting portion 4. Then, by applying a force to the protection part 4, the connecting part 5 is broken and the exposed part 21 of the fluid discharge part 2 is exposed. Thereby, the fluid accommodated in the container main body 1 is discharged from the exposed portion 21 of the fluid discharge portion 2 exposed from the container main body 1.

  With such a configuration, the fluid discharge member according to the present invention is inserted into the container body from one end of the container body, and is attached to the container body so as to be pushed into the other end of the container body. Can do. Accordingly, it is possible to omit a precise operation for fitting the container sealing portion to the container main body from the outside. Thereby, it becomes easy to attach the fluid discharge member to the container body.

  Moreover, the fluid discharge member according to the present invention is attached in the container body. Thereby, the fluid discharge member is stabilized. Therefore, in use, even if a force is applied to the protective part to remove the protective part provided on the fluid discharge member, the fluid discharge member does not come off.

  In addition, since the fluid discharge member according to the present invention is attached to the end portion in the container body, when the fluid filled in the container body is discharged, a high pressure is applied to the fluid discharge member. Even if it exists, a fluid discharge member does not remove | deviate from a container main body.

  The fluid discharge member according to the present invention is protected so that the exposed portion of the fluid discharge portion is covered with the groove portion of the protection portion. For this reason, the surface of the exposed portion can be formed beautifully in advance. Therefore, even if the protective part is removed during use, no biting remains on the exposed part that directly contacts the patient's skin.

  In a preferred embodiment of the present invention, a flow path 22 for discharging the fluid in the container main body 1 to the outside of the container main body 1 is provided along the central axis of the fluid discharge portion 2. The flow path 22 tapers as it progresses from the inside to the outside of the container body 1. With such a configuration, it is possible to increase the discharge speed of the fluid discharged through the flow path 22.

  In a preferred embodiment of the present invention, the exposed portion 21 of the fluid discharge portion 2 is raised in a truncated cone shape. In addition, the apex angle of the conical shape formed by extending the tapered portion of the flow path 22 of the fluid discharge unit 2 is defined as an acute angle. For example, when the present invention is used for an ampoule for a needleless syringe, the exposed portion 21 of the fluid discharge portion 2 is raised in a truncated cone shape, so that the exposed portion 21 is brought into close contact with the skin of the patient to be administered. Can do. In addition, since the exposed part 21 can form the opening surface beautifully beforehand and is protected by the protection part, the patient's skin to be administered is not damaged. Further, by setting the apex angle of the conical shape formed by extending the tapered portion of the flow path 22 of the fluid discharge unit 2 to an acute angle, the speed of entry of the discharged fluid can be increased. Therefore, the fluid ejection member according to a preferred embodiment of the present invention can be applied to an ampoule that requires a higher fluid ejection speed, such as a needleless syringe.

  In a preferred embodiment of the present invention, the exposed portion 21 of the fluid discharge portion 2 is recessed in a truncated cone shape. Further, the apex angle of the conical shape formed by extending the tapered portion of the flow path 22 of the fluid discharge part 2 is defined as an obtuse angle. For example, when the present invention is used in an ampule for fluid spraying, the exposed portion 21 of the fluid discharge portion 2 is recessed in a truncated cone shape, so that the fluid in the container body can be sprayed in a wider range. Further, since the apex angle of the conical shape formed by extending the tapered portion of the flow path 22 of the fluid discharge unit 2 is an obtuse angle, the fluid that has been rapidly narrowed is continuously released. Therefore, the fluid in the container body can be sprayed in a wider range.

  In a preferred embodiment of the present invention, a rotation groove 22 a for controlling the rotation direction of the fluid flowing through the flow path 22 is provided on the inner wall of the flow path 22. 6A and 6B show an example of a flow path provided with three rotation grooves 22a. For example, three, four, five, or more rotation grooves 22a may be provided. By having such a configuration, the present invention can rotate the fluid flowing through the flow path 22. Therefore, for example, when the present invention is used in an ampule for fluid spraying, the fluid flowing through the flow path 22 spreads in the rotation direction from the discharge port and is sprayed, so that the fluid can be sprayed in a wider range. The rotating groove 22a may be formed by recessing a part of the inner wall of the flow path 22, or may be formed by raising a part of the inner wall of the flow path. Further, the rotating groove 22a may be integrally formed with the same material as the flow path 22 (fluid discharge part 2), or may be formed with a different material from the flow path 22 (fluid discharge part 2). Good.

  In a preferred embodiment of the present invention, the holding portion 3 and the protection portion 4 are integrally formed through the connecting portion 5. By integrally molding in this way, the airtightness in the container body can be improved, which is preferable in terms of hygiene. Moreover, if there is no problem in material processing, it is good also as an ampoule which integrally forms the container main body 1, the holding part 3, the protection part 4, and the connection part 5. FIG.

  Another aspect of the present invention is an ampoule including the fluid discharge member according to the present invention.

  Another aspect of the present invention is a fluid discharge device including a fluid discharge member according to the present invention. The fluid discharge device according to another aspect of the present invention includes a fluid discharge member, an ampoule 1 including the fluid discharge member, a movable plug 300 installed in the ampoule, and a movable plug in the ampoule that moves forward and backward in the ampoule. A piston 400 that is movable in the direction is included.

  The fluid discharge device according to another aspect of the present invention preferably further includes a deflector block 700 disposed in the ampoule 1 in proximity to the fluid discharge member. The deflector block 700 has an outer peripheral wall having substantially the same diameter as the inner wall in the ampoule 1, and a diversion groove 710 is formed on the outer peripheral wall. The deflector block 700 is a member for diverting the fluid in the container body to which the pressure is applied by the movable stopper 300. When the divided fluids are ejected from the fluid ejection port 23, they interfere with each other and become sprayed. The deflector block 700 is used by being loaded in an ampoule, and is formed with the same or substantially the same diameter as the inner wall of the ampoule so that the fluid in the ampoule does not flow from other than the diversion groove 710. Is done.

  According to the present invention, it is possible to provide a fluid discharge member that can be easily attached to a container body.

  ADVANTAGE OF THE INVENTION According to this invention, the fluid discharge member which can remove easily the part which protects the part which fluid discharges can be provided.

  In addition, according to the present invention, it is possible to provide a fluid discharge member that does not leak fluid even when the fluid filled in the container body is ejected.

  In addition, according to the present invention, even if the cleaving property of the member that protects the portion from which the fluid is discharged is not sufficient and the pricking remains on the opening surface, the skin of the patient who pressed the opening surface may be damaged. No fluid ejection member can be provided.

  Further, according to the present invention, it is possible to provide a fluid ejection member that can eject fluid in an appropriate state.

  In addition, according to the present invention, it is possible to provide a fluid discharge member that can easily form a fluid flow path filled in the container body.

FIG. 1 is a schematic view showing an example in which a fluid discharge member according to a first embodiment of the present invention is attached to a container body. FIG. 2 is a diagram showing an assembly configuration of the fluid ejection member according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating a state in which fluid is discharged in the first embodiment of the present invention. FIG. 4 is a schematic view showing a state where the protective portion is removed from the fluid ejection member in the first embodiment of the present invention. FIG. 5 is a schematic view showing an example in which the fluid discharge member according to the second embodiment of the present invention is attached to the container body. FIG. 6 is a diagram showing an assembly configuration of the fluid ejection member according to the second embodiment of the present invention. FIG. 7 is a diagram showing a state in which fluid is ejected in the second embodiment of the present invention. FIG. 8 is a schematic view showing a state where the protective portion is removed from the fluid ejection member in the second embodiment of the present invention. FIG. 9 is a diagram showing an example of a fluid discharge device to which the fluid discharge member according to the present invention is applied. FIG. 10 is a schematic diagram illustrating an example of a fluid discharge device including a deflector block. Fig.11 (a) is a front view which shows the example of a deflector block. FIG.11 (b) is a top view which shows the example of a deflector block.

  Hereinafter, modes for carrying out the present invention will be described. The embodiments of the present invention described below are examples, and the present invention is not limited to the following examples, and includes modifications made within the scope obvious to those skilled in the art from the present specification.

(1. First embodiment)
FIG. 1 is a schematic diagram showing a basic configuration of a fluid ejection member 100 according to the first embodiment of the present invention. In the first embodiment of the present invention, for example, a fluid discharge member attached to a container body of a device such as a needleless syringe that requires the fluid in the container body to be concentrated and discharged at one point. About.

  As shown in FIG. 1, the fluid ejection member 100 includes a fluid ejection part 2, a holding part 3, a protection part 4, and a connection part 5. The fluid discharge part 2 has an exposed part 21 exposed from the container body 1 in which the fluid is accommodated. The holding part 3 holds the fluid discharge part 2 at one end in the container body 1 so that the exposed part 21 of the fluid discharge part 2 is exposed from the container body 1. The protection part 4 has a groove part 41 having a size corresponding to the exposed part 2 of the fluid discharge part 2. The connection part 5 connects the protection part 4 and the holding part 3 so that the groove part 41 of the protection part 4 covers the exposed part 21 of the fluid discharge part 2. The connecting portion 5 is made of a material thinner than the holding portion 3 and the protecting portion 4. Then, by applying a force to the protection part 4, the connecting part 5 is broken and the exposed part 21 of the fluid discharge part 2 is exposed. Thereby, the fluid accommodated in the container main body 1 is discharged from the exposed portion 21 of the fluid discharge portion 2 exposed from the container main body 1.

  As shown in FIG. 1, it is preferable that the fluid discharge unit 2, the holding unit 3, the protection unit 4, and the connection unit 5 are all arranged coaxially. Moreover, it is preferable that the fluid discharge member 100 and the container body 1 are arranged so as to be coaxial. Furthermore, the container main body 1 and the fluid discharge member 100 can be integrally molded if there is no problem in processing or using the material.

  FIG. 2 is a schematic view showing an assembly structure of the fluid ejection member 100 according to the first embodiment of the present invention. FIG. 2A shows a view in which the fluid discharge part 2 is fitted into a member (socket member) in which the holding part 3 and the protection part 4 are integrated by the connecting part 5. That is, the fluid discharge member 100 shown in FIG. 2A is formed by fitting the fluid discharge member 2 shown in FIG. 2C from the bottom of the socket member shown in FIG. 2 (a ′), (b ′), and (c ′) are bottom views of FIGS. 2 (a), (b), and (c), respectively.

(1-1. Container body)
As shown in FIG. 1, the fluid ejection member 100 is attached inside the container body 1. The container body 1 may be an ampoule used for a needleless syringe, for example. Further, the container body 1 may be a cylindrical member whose end opposite to the end to which the fluid discharge member 100 is attached is coupled to a supply source (for example, a faucet) that supplies fluid.

  The container body 1 is scheduled to contain a fluid therein. The fluid contained in the container body 1 may be a chemical solution. In addition, the case where a crack arises can be prevented effectively by using resin with comparatively rich elasticity for the container body. The container body 1 in a preferred embodiment of the present invention is a cartridge type ampoule. That is, this ampoule is inserted into a needle-free injection unit or the like, and is exchanged for another ampoule after using this ampoule.

(1-2. Fluid discharge part)
The fluid discharge unit 2 is a member for discharging the fluid filled in the container body 1. The fluid discharge unit 2 is provided with a flow path 22 for discharging the fluid filled in the container body 1. One flow path 22 may be provided in the fluid discharge section 2 or a plurality of flow paths 22 may be provided. Moreover, the fluid discharge part 2 is comprised with a member with water absorption like a sponge, and it is good also as the fluid in the container main body 1 being absorbed from one end, and discharging so that it may ooze out from the other end.

  FIG. 1 is a diagram showing an example in which a fluid discharge member 100 is attached to an instrument that requires a fluid in a container body such as a needleless syringe to be concentrated and discharged at one point. A single flow path 22 is formed through the fluid discharge unit 2 along the central axis of the fluid discharge unit 2. The both ends of the channel 22 formed to be open are open ends, and the outer side of the container body is a fluid discharge port 23. The diameter of the fluid discharge port 23 may be 0.01 to 0.15 mm, 0.1 mm to 0.3 mm, 0.15 mm to 0.25 mm, or 0.2 mm. It is preferable that the flow path 22 is tapered as it proceeds from the inside of the container main body of the fluid discharge unit 2 toward the fluid discharge port 23. Moreover, it is preferable that the apex angle of the conical shape formed by extending the tapered portion of the flow path 22 is an acute angle. In other words, it is preferable that the apex angle of the conical shape formed by extending the space of the passage 22 formed to be an acute angle.

  The apex angle of the conical shape forming the flow path is, for example, 1 to 45 degrees, preferably 5 to 30 degrees, more preferably 10 to 20 degrees, but 5 to 10 degrees. There may be. From the viewpoint of hydrodynamics, it is considered that the loss can be reduced by setting the apex angle (aperture) to about 15 degrees. With such an angle, the fluid can be adjusted and the flow rate of the fluid flowing through the flow path 22 can be increased. In addition, by adjusting the apex angle of the conical shape, the fluid penetration force and the approach speed can be adjusted. For example, in the case of a needleless syringe, the drug can be injected into a deeper part of the skin or can be injected into a shallow part of the skin. In addition, when the fluid ejection member 100 of the present invention is used in a needleless syringe, if the range in which the drug solution is distributed is wide, the possibility of passing through pain points in the skin increases, and there is a possibility that it is not painless. From such a viewpoint, the apex angle of the cone may be 1 degree to 10 degrees, or 5 degrees to 10 degrees.

  FIG. 3 shows the flow of the fluid flowing through the flow path 22. For example, as shown in FIG. 3A, when the apex angle of the conical shape forming the flow channel 22 is about 45 degrees, the fluid flowing through the flow channel 22 is mutually discharged when discharged from the discharge port 23. Interfering with each other and discharged to some extent. Therefore, when the apex angle of the conical shape forming the flow path 22 is 40 degrees to 50 degrees, for example, in a needleless syringe, the drug can be injected into a shallow portion of the skin. For example, as shown in FIG. 3B, when the apex angle of the conical shape forming the flow path is about 15 degrees, the fluid flowing through the flow path 22 is discharged from the discharge port 23. The flow is converged and discharged in a concentrated manner. Moreover, the flow path 22 of the fluid discharge part 2 shown in FIG.3 (b) is made into the full length about 2.5 mm-3 mm, for example, when using for a needleless syringe, the suitable pressure which penetrates soft skin is used. Can discharge fluid. On the other hand, the total length of the flow path 22 of the fluid ejection part 2 shown in FIG. 3C is about 3.5 mm to 4 mm. In such a case, pressure loss occurs, so the flow velocity can be reduced. In this way, by adjusting the apex angle of the conical shape forming the flow path 22 and the total length of the flow path, it is possible to control the properties and pressure of the discharged fluid. In this way, even if the shape of the flow path 22 is slightly different, the state of fluid discharged from the discharge port 23 is greatly different. Conventional ampules used the cross section produced by removing the tip as a discharge port. However, when the tip is removed, the shape of the discharge port changes due to breakage, etc. It is difficult to discharge the fluid in a desired state. Therefore, as in the fluid discharge member 100 according to the present invention, the flow path 22 and the discharge port 23 are accurately formed in advance and protected by the protection unit, so that it is always desired according to the application of the ampoule. The shape of the flow path 22 and the discharge port 23 can be maintained so that the fluid can be discharged in this state.

  Further, the fluid discharge unit 2 can be formed of a material different from that of the container body 1 and the holding unit 3. Further, the material forming the fluid discharge unit 2 can be harder than the material forming the container body 1 and the holding unit 3. For example, when the container main body 1 and the holding member 3 are formed of a relatively elastic silicone resin, the fluid discharge portion 2 can be formed using a relatively hard resin or glass. In a conventional ampule such as a needleless syringe, these container body and fluid discharge part are integrally formed of the same material, but the fluid discharge part is compared with the container body 1 and the holding member 3 as in the present invention. By forming the material with a strong material, the fluid flowing through the flow path can be made more stable. That is, in order to discharge the fluid in the container body 1 at a high pressure, it is preferable to reduce the loss as much as possible and prevent the occurrence of the flow separation phenomenon in the flow path as much as possible. If the material forming the material is hard, the peeling phenomenon can be prevented even if the fluid circulates in the flow path at a high pressure.

  The fluid discharge part 2 has an exposed part 21 exposed from the container body 1. In FIG. 1, the exposed portion 21 protrudes in a truncated cone shape around the fluid discharge port 23. The height of the frustoconical portion is, for example, 10% to 90% of the entire fluid discharge unit 2, and may be 20% to 80%, 30% to 70%. The angle of the apex of the trapezoid is, for example, 100 degrees to 170 degrees, and may be 120 degrees to 150 degrees, 130 degrees to 140 degrees. As described above, the exposed portion 21 is raised in the shape of a truncated cone with the fluid discharge port 23 as the center, so that, for example, when the fluid discharge member 100 of the present invention is used in a needleless syringe, It is possible to make the fluid discharge port 23 positioned closer to the skin. Therefore, the chemical solution can be injected into the skin without leaking the drug from the fluid discharge port 23.

  A flange is formed at an end of the fluid discharge unit 2 inside the container body. The body of the fluid discharge unit 2 is inserted into the hollow space of the holding unit 3 formed in a cylindrical shape by pressing the flange against the holding unit 3. In this way, the fluid discharge unit 2 and the holding unit 3 may be combined.

(1-3. Holding part)
As shown in FIG. 1, the holding unit 3 holds the fluid discharge unit 2 in the container body 1 so that the exposed portion 21 of the fluid discharge unit 2 is exposed from the container body 1. The holding part 3 is formed in a cylindrical shape and includes a body part 31, a body part upper part 32, and a hollow part 33. The diameter of the body part upper part 32 is smaller than the diameter of the body part 31. The open part on the open end side of the container body 1 is an open part having a diameter substantially the same as the diameter of the upper part 32 of the body part of the holding part 3. Is inserted and pushed. If it is such a structure, it will be easy to attach the holding | maintenance part 3 (fluid ejection member 100) to the container main body 1. FIG. Further, the recessed portion 33 of the holding portion 3 is formed such that a part of the outer peripheral wall of the body portion 31 is missing. Corresponding to the recess 33 of the holding part 3, the inner wall of the container body 1 is formed so as to partially protrude. Therefore, when the body upper part 32 of the holding part 3 is fitted so as to be pushed into the open part of the container main body 1, the protrusion of the container main body is fitted into the recess 33 of the holding part 3. Yes. In this way, the holding unit 3 may be attached in the container body 1. If there is no problem in processing or using the material, the container body 1 and the holding part 3 may be integrally formed.

  The inner end of the container main body of the holding unit 3 may be formed so as to be recessed in an arc shape around the flow path 22 of the fluid discharge unit 2 being held. Also. Corresponding to the fact that one end portion of the holding portion 3 is recessed in an arc shape, one end portion of the fluid discharge portion 2 held by the holding portion 3 may be recessed in an arc shape. Further, the end of the holding unit 3 inside the container main body may be formed to be recessed in a polygonal shape with the flow path 22 of the holding fluid discharge unit 2 as the center. As described above, by being formed so as to be recessed in an arc shape or a polygonal shape, the fluid in the container body 1 can easily flow into the flow path 22 of the fluid discharge portion 2 held by the holding portion 3. Further, by making the shape corresponding to the shape of the member for extruding the fluid in the container body 1 (for example, the shape of the end of the movable stopper 300 shown in FIG. 9), the fluid in the container body 1 is completely discharged. Can be made.

  The upper surface of the body part upper part 32 of the holding part 3 is connected to the protection part 4 via the connection part 5. It is preferable that the holding part 3 and the protection part 4 are integrally formed via the connection part.

(1-4. Protection part)
As shown in FIG. 1, the protection part 4 is provided to protect the exposed part 21 of the fluid discharge part 2 and is removed in use. FIG. 4 is a diagram illustrating a state where the protection unit 4 is detached from the fluid ejection member. Since the fluid is discharged from the exposed portion 21 of the fluid discharge portion 2 and the exposed portion 21 may directly touch the patient's skin, it is preferably protected in a sealed state so that bacteria and dirt are not attached. . The protection part 4 has a groove part 41 having a size corresponding to the exposed part 21 of the fluid discharge part 2. The “size corresponding to the exposed portion 21” means that the depth of the groove and the diameter of the groove correspond to the height at which the exposed portion 21 rises and the diameter of the exposed portion 21. When the exposed portion is raised, the depth of the groove of the groove portion 41 may be substantially the same as or higher than the raised height. The depth of the groove portion 41 is preferably a sufficient depth so that no inconvenience occurs when the exposed portion 21 is loaded and the exposed portion 21 is not damaged when the protective portion 4 is removed. For example, the depth of the groove portion 41 is preferably about twice the height of the exposed portion raised. Further, the groove diameter of the groove portion 41 may be substantially the same as or larger than the diameter of the exposed portion so that similar inconvenience and damage do not occur. For example, the diameter of the groove of the groove part 41 is preferably equal to the diameter of the body of the fluid discharge part 2. Moreover, the example of the shape of the groove part 41 is hollow in circular arc shape or polygonal shape. When the fluid discharge portion 23 is raised in a truncated cone shape, the groove portion 41 may be formed so as to be recessed on the truncated cone shape.

  As shown in FIG. 1, the protection part 4 is good also as forming the trunk | drum with the column shape of a solid structure except the groove part 41. As shown in FIG. Moreover, it is good also as forming the edge part on the opposite side to the edge part connected with the holding | maintenance part 3 in hemispherical shape. As shown in FIG. 4, the protection unit 4 is removed during use. The protection part 4 is good also as being able to remove by screwing and screwing. Moreover, the protection part 4 is good also as being able to be removed by applying a force from the side with respect to the central axis of the protection part 4. Moreover, the protection part 4 is good also as being able to remove from the holding | maintenance part 3 by wall covering property. Since the protection part 4 is removed from the fluid ejection member 100 in this way, it is preferable to form the body part so that the protection part 4 can be easily removed in use. For example, by forming the protective part 4 in a solid structure except for the groove part 41, even if the body part is picked when removing, the shape of the protective part 4 will not change, so that it is easy to apply a picking force. . Moreover, it is good also as giving a well-known anti-slip process to the outer wall surface of the protection part 4. FIG. In addition, examples of the diameter of the body of the protection unit 4 include 1 mm to 5 mm, 2 mm to 4 mm, or 3 mm to 3.5 mm.

(1-5. Connecting part)
As shown in FIG. 1, the holding part 3 and the protection part 4 are connected by the connection part 5 so that the groove part 41 of the protection part 4 covers the exposed part 21 of the fluid discharge part 2. The thickness of the connecting portion 5 is preferably thinner than the thickness of the holding portion 3 and the protective portion 4. Moreover, as shown in FIG. 1, the connection part 5 is formed by making a cut | interruption from the upper diagonal direction with respect to the outer peripheral wall of the protection part 4 in the location connected with the holding | maintenance part 3 among the protection parts 4. FIG. It is good as well. As described above, the thickness of the material forming the connecting portion 5 is smaller than the thickness of the material forming the holding portion 3 and the thickness of the material forming the protective portion 4. It becomes easy to remove from the part 3. Moreover, the connection part 5 may be formed by making a cut | interruption with respect to the inner peripheral wall of the protection part 4 which forms the groove part 41 of the protection part 4. FIG. The angle of the connecting portion 5, that is, the angle between the upper surface of the holding portion 3 and the protective portion 4, and the angle between the cuts made from the upper oblique direction, is, for example, 10 degrees to 60 degrees, 20 degrees to 50 degrees, or 30 degrees. It may be ˜40 degrees. Moreover, when the force from a horizontal direction is applied with respect to the center axis | shaft of the protection part 4, the connection part 5 may be damaged by brittleness.

It is preferable that the holding part 3 and the protection part 4 are integrally formed via the connecting part 5. The holding part 3 and the protection part 4 may be integrally formed in advance. Moreover, after forming the holding | maintenance part 3 and the protection part 4 separately, it is good also as forming integrally, for example using means like welding.
(2. Second Embodiment)

  FIG. 5 is a schematic diagram showing a basic configuration of a fluid ejection member 200 according to the second embodiment of the present invention. FIG. 5 shows a fluid discharge member attached to a container body of an instrument that needs to spray a wide range of fluid in the container body, such as a nasal administration device (a sprayer). Note that in the description of the second embodiment of the present invention, portions overlapping with the description of the first embodiment of the present invention described above are cited and the description thereof is omitted.

  As shown in FIG. 5, the fluid ejection member 200 includes a fluid ejection part 2, a holding part 3, a protection part 4, and a connection part 5. The fluid discharge part 2 has an exposed part 21 exposed from the container body 1 in which the fluid is accommodated. The holding part 3 holds the fluid discharge part 2 at one end in the container main body 1 so that the exposed part 21 of the fluid discharge part 2 is exposed from the container main body 1. The protection part 4 has a groove part 41 having a size corresponding to the exposed part 2 of the fluid discharge part 2. The connection part 5 connects the protection part 4 and the holding part 3 so that the groove part 41 of the protection part 4 covers the exposed part 21 of the fluid discharge part 2. The connecting portion 5 is made of a material thinner than the holding portion 3 and the protecting portion 4. Then, by applying a force to the protection part 5, the connection part 5 is broken and the exposed part 21 of the fluid discharge part 2 is exposed. Thereby, the fluid accommodated in the container main body 1 is discharged from the exposed portion 21 of the fluid discharge portion 2 exposed from the container main body 1.

  FIG. 6 is a schematic diagram showing an assembly structure of the fluid ejection member 200 according to the second embodiment of the present invention. FIG. 6A shows a diagram in which the fluid discharge part 2 is fitted into a member (socket member) in which the holding part 3 and the protection part 4 are integrated by the connecting part 5. In other words, the fluid discharge member 200 shown in FIG. 6A is formed by fitting the fluid discharge member 2 shown in FIG. 6C from the bottom of the socket member shown in FIG. 6B. 6A, 6B, and 6C are bottom views of FIGS. 6A, 6B, and 6C, respectively.

(2-1. Container body)
The fluid discharge member 200 is attached inside the container body 1. The container body 1 may be an ampoule used for a nasal administration device, for example. Moreover, the cylindrical member couple | bonded with the supply source (for example, faucet) which supplies the fluid may be sufficient as the edge part on the opposite side to the edge part to which the fluid discharge member 200 was attached.

(2-2. Fluid discharge part)
The fluid discharge unit 2 is a member for discharging the fluid filled in the container body 1. As shown in FIG. 5, a flow path 22 is formed through the fluid ejection unit 2 along the central axis of the fluid ejection unit. Compared to the first embodiment shown in FIG. 1, the flow path 22 is formed wider. The both ends of the channel 22 formed to be open are open ends, and the outer side of the container body is a fluid discharge port 23. The diameter of the fluid discharge port 23 may be 0.01 mm to 0.15 mm, 0.1 mm to 0.3 mm, 0.15 mm to 0.25 mm, or 0.2 mm. The flow path 22 tapers as it advances from the inside of the container main body of the fluid discharge part 2 to the fluid discharge port 23 side. The conical apex angle formed by extending the tapered portion of the flow path 22 is an obtuse angle. In other words, the conical apex angle formed by extending the space of the passage 22 formed so as to penetrate is an obtuse angle. The apex angle of this conical shape is, for example, 90 ° to 170 °, preferably 100 ° to 160 °, more preferably 110 ° to 150 °. With such an angle, the fluid can be adjusted, the flow rate of the fluid in the flow path 22 can be reduced, and the fluid can be sprayed in a wider range. That is, in the case of a sprayer that sprays a medicine, the medicine can be applied to a wider range of affected areas.

  The fluid discharge unit 2 is formed of a material different from that of the container body 1 and the holding unit 3. The material forming the fluid discharge part 2 is preferably formed using a hard resin or glass as compared with the material forming the container body 1 and the holding part 3.

  Further, as shown in FIGS. 6 (a ′) and 6 (c ′), the flow path 22 of the fluid discharge section 2 is formed with a rotation groove 22a for controlling the rotation direction of the fluid flow on the inner wall thereof. It is good to do. That is, by providing a groove in the flow path 22, the fluid flows along the groove. Therefore, by flowing the fluid along the groove, the flow of the fluid can be changed so as to rotate the fluid that has entered the flow path 22. In the flow path 22, the rotation direction of the fluid may be controlled by forming a plurality of rotation grooves 22 a inclined on the inner wall at a predetermined angle with respect to the fluid traveling direction. Examples of the inclination angle of the rotating groove 22a include 5 to 45 degrees, 10 to 40 degrees, and 15 to 35 degrees. Moreover, the flow path 22 is good also as controlling the rotation direction of the fluid by forming in the inner wall the rotating groove swirled spirally. By providing such a rotating groove, the fluid flowing through the flow path can be rotated in a vortex. When the fluid rotated in a vortex is discharged from the fluid discharge port 23 so as to spread in the rotation direction, the fluid in the container body 1 can be sprayed in a wider range.

  As shown in FIG. 5, the fluid ejection part 2 has an exposed part 21 exposed from the container body 1. In the second embodiment of the present invention, the exposed portion 21 is recessed in a truncated cone shape around the fluid discharge port 23. That is, the width becomes wider from the fluid discharge port 23 in the direction in which the fluid is discharged. The apex angle of the conical shape formed by extending the recessed portion in the truncated cone shape is, for example, 90 ° to 170 °, preferably 100 ° to 160 °, more preferably 110 ° to 150 °. Further, it is preferable that the apex angle of the conical shape is equal to the apex angle of the conical shape formed by extending the tapered portion of the flow path 22. Since the exposed portion 21 is recessed in a truncated cone shape with the fluid discharge port 23 as the center, the fluid discharged from the fluid discharge port 23 located at the center of the exposed portion 21 can be sprayed in a wider range. . Therefore, the medicine sprayed from the fluid discharge port 23 can be applied over a wide range of the affected area.

  In FIG. 7, a mode that the fluid in a container main body discharges from the fluid discharge part 2 which concerns on the 2nd Embodiment of this invention is shown. First, in FIG. 7A, the flow path 22 through which the fluid flows is partially straight for the thickness of the material forming the fluid discharge portion 2. Accordingly, since the fluid converged on the fluid discharge port 23 along the inner wall of the flow channel 22 finally flows through the partially straight flow channel, the fluid flows into the fluid discharge port 23. It is discharged intensively from around. In FIG. 7B, the fluid discharge port 23 is formed in a truncated cone shape. In other words, the shape of the fluid discharge port 23 is wider with respect to the fluid traveling direction. In this way, by making a diagonal cut in the material of the fluid discharge portion 22 forming the fluid discharge port 23, the fluid discharged from the fluid discharge port 23 is scattered and easily discharged (sprayed). It has become. Therefore, the fluid discharged from the fluid discharge port 23 is discharged with a certain extent. Further, in FIG. 7C, the material of the fluid discharge part 2 forming the fluid discharge port 23 is cut in the horizontal direction, and the fluid discharge port 23 is opened 180 degrees. As described above, the fluid discharge port 23 is formed so as not to obstruct the spread of the fluid discharged from the fluid discharge port 23, and the fluid discharged therefrom can be more widely dispersed. Thus, by adjusting the shape of the fluid discharge port 23, the state of the fluid to be discharged can be set to a desired state according to the application of the fluid discharge member 200. As described above, even if the shape of the discharge port 23 is slightly different, the state of the fluid to be discharged is greatly different. Conventional ampules used the cross section produced by removing the tip as a discharge port. However, when the tip is removed, the shape of the discharge port changes due to breakage, etc. It was difficult to discharge the fluid in a desired state. Therefore, like the fluid discharge member 200 according to the present invention, the flow path 22 and the discharge port 23 are formed in advance with high accuracy, and are protected by the protection unit, so that a desired response according to the application of the ampoule can be obtained. The shape of the flow path 22 and the discharge port 23 can be maintained so that the fluid can be discharged in this state.

  In FIG. 5, the fluid ejection part 2 has a tapered shape. The fluid discharge unit 2 is coupled to the holding unit 3 such that a tapered oblique side portion is pressed against the holding unit 3. Alternatively, a flange may be provided at the inner end of the container body of the fluid discharge unit 2, and the fluid discharge unit 2 and the holding unit 3 may be coupled by pressing the flange against the holding unit 3.

(2-3. Holding part)
As shown in FIG. 5, the holding part 3 holds the exposed part 21 of the fluid discharge part 2 in the container body 1 so that the exposed part 21 is exposed from the container body 1. The open part on the open end side of the container body 1 is an open part having a diameter substantially the same as the diameter of the upper part 32 of the body part of the holding part 3. Is inserted and pushed. Further, when the body upper part 32 of the holding part 3 is fitted and pushed into the open part of the container main body 2, the protrusion of the container main body is fitted into the recess 33 of the holding part 3. Yes. Thereby, the holding | maintenance part 3 is attached in the container main body 1. FIG.

  The upper surface of the body part upper part 32 of the holding part 3 is connected to the protection part 4 via the connection part 5. It is preferable that the holding part 3 and the protection part 4 are integrally formed via the connection part.

(2-4. Protection part)
As shown in FIG. 5, the protection part 4 is provided to protect the exposed part 21 of the fluid discharge part 2 and is removed during use. FIG. 8 shows a state where the protection unit 4 is detached from the fluid ejection member 200. Since fluid is discharged from the exposed portion 21 of the fluid discharge portion 2, it is preferable to protect the exposed portion 21 in a sealed state so that bacteria and dirt are not attached to the exposed portion 22. The protection part 4 has a groove part 41 having a size corresponding to the exposed part 21 of the fluid discharge part 2. In the second embodiment of the present invention, since the exposed portion 21 does not protrude, the groove depth of the groove portion 41 does not need to correspond to the exposed portion 21. For example, the depth of the groove portion 41 may be 0.5 mm to 2 mm, or 0.5 mm to 1 mm. Further, the diameter of the groove of the groove portion 41 may be substantially the same as or larger than the diameter of the recessed portion of the exposed portion 21. The example of the shape of the groove part 41 is a thing dented in circular arc shape or polygonal shape.

  As shown in FIG. 5, the protection part 4 is good also as forming the trunk | drum in the column shape of a solid structure except the groove part 41. As shown in FIG. Moreover, the protection part 4 is good also as forming the edge part on the opposite side to the edge part connected with the holding | maintenance part 3 in a hemispherical shape.

(2-5. Connection part)
The holding part 3 and the protection part 4 are connected by the connection part 5 so that the groove part 41 of the protection part 4 covers the exposed part 21 of the fluid discharge part 2. The thickness of the connecting portion 5 is thinner than the thickness of the holding portion 3 and the protective portion 4.

  It is preferable that the holding part 3 and the protection part 4 are integrally formed via the connecting part 5. The holding part 3 and the protection part 4 may be integrally formed in advance. Moreover, after forming the holding | maintenance part 3 and the protection part 4 separately, it is good also as forming integrally using means, such as welding, for example.

(3. Usage example)
Next, a usage example of the fluid discharge member 100 (or 200, the same applies hereinafter) according to the present invention will be described.
FIG. 9 is a schematic view showing a fluid discharge device 1000 in which a fluid discharge member 100 according to the present invention is provided in a container body (ampoule) 1. FIG. 9A shows the fluid discharge device in a state before use, and FIG. 9B shows the fluid discharge device in use. Examples of the fluid discharge device 1000 after use are a needleless syringe and a sprayer. As shown in FIG. 9, the fluid discharge device 1000 includes an ampoule 1, a fluid discharge member 100 installed at an end of the ampoule 1, a movable plug 300 installed in the ampoule 1, and an ampoule 1. The movable stopper 300 has a piston 400 that moves so as to advance and retreat in the ampule 1, a holder 500 that holds the piston 400 in the ampule 1, and a grip 600 that is fixed by the holder 500 and is gripped when the piston 400 is pressed.

  When the medicine is stored in the ampoule 1, the ampoule 1, the fluid discharge member 100, and the movable plug 300 constitute a closed system. For this reason, the ampoule 1, the fluid discharge member 100, and the movable stopper 300 function as an ampoule container containing a medicine.

  As shown in FIG. 9, the piston 400 includes a support column 401 and a piston base 402 connected to the support column 401. A spring portion 403 is fixed to the piston base 402. The tip of the column 401 is in contact with the movable plug 300. And if the support | pillar 401 moves, the movable stopper 300 will also move interlockingly.

  FIG. 10 is a view showing a deflector block 700 provided in the fluid discharge device 1000 according to the present invention. The deflector block 700 is disposed in the container main body 1 of the fluid discharge device 1000 close to or in close contact with the fluid discharge member 2. The deflector block 700 is a member for diverting the fluid in the container body to which pressure is applied by the movable stopper 300. The fluid pushed out by the movable stopper 300 is diverted along a diverting groove 710 provided on the outer peripheral portion of the deflector block 700, circulates along the diverting groove 710 and the side wall of the container body, and is provided in the flow path 22. It converges to the fluid discharge port 23 along the rotating groove 23. Accordingly, the fluids separated from each other interfere with each other due to the rapid narrowing (orifice) of the flow path 22 of the fluid discharge unit 2, and when discharged from the fluid discharge port 23, the fluid becomes sprayed and externally Is discharged.

  FIG. 11 is a schematic diagram illustrating an example of the configuration of the deflector block 700. FIG. 11A shows a front view of the deflector block 700, and FIG. 11B shows a plan view of the deflector block 700. FIG. 11C shows a modification of the deflector block 700. The deflector block 700 includes a diversion groove 710 provided on the outer periphery of the block main body, a diversion surface 720 provided at one end, and a buffer portion 730 provided at the other end of the diversion surface 710. The deflector block 700 is disposed in the container body so that the flow dividing surface 720 faces the movable stopper 300. The deflector block 700 is used by being loaded in the ampoule body, and the outer wall of the deflector block 700 has the same diameter as the inner wall of the ampoule so that the fluid in the ampoule does not flow through other than the diversion groove 710. Alternatively, they are formed with substantially the same diameter. The fluid filling the ampoule is pushed out by the movable plug 300 and flows along the flow dividing surface 720 into the flow dividing groove 710 formed on the outer wall of the block body. The diversion groove 710 is formed linearly, and a fluid flow path is formed between the diversion groove 710 and the inner wall of the ampoule. The deflector block 700 may be formed of a relatively elastic silicone resin so that the deflector block 700 is not damaged even when it comes into contact with the movable stopper 300. Moreover, as shown in FIG.11 (c), the deflector block 700 may have the diversion groove | channel 710 comparatively wide. That is, in the surface area of the outer peripheral surface of the block main body of the deflector block 700, the shape of the diversion groove 710 may be larger than the area other than the diversion groove 7100. Thus, by making the diversion groove 710 relatively wide, the flow of the wall flow flowing between the diversion groove 710 and the inner wall of the ampule can be improved, and the fluid filling the ampule can be sprayed vigorously. Can do.

  Further, the deflector block 700 has a buffer part 320 at the end opposite to the flow dividing surface 720. When the movable stopper 300 moves in conjunction with the movement of the piston 400, the movable stopper 300 contacts the flow dividing surface 720 of the deflector block 700. At this time, if the momentum of the movement of the piston 400 is fast, the deflector block 700 is pushed in when the movable plug 300 comes into contact with the deflector block 700, and the fluid discharge unit 2 at the tip of the deflector block 700 may be damaged. There is sex. Therefore, in order to prevent the fluid discharge unit 2 from being damaged, it is preferable to provide a buffer unit 720 at the tip of the deflector block 700 so as to reduce the impact when the deflector block 700 contacts the fluid discharge unit 2. The buffer portion 320 may be formed of, for example, a silicone resin that is relatively elastic. Moreover, the buffer part 320 is good also as forming with the raw material which has another plasticity. Further, the buffer portion 320 may have a shape protruding from the movable stopper main body 310 only by one step, a shape protruding two steps as shown in FIG. 10, or a shape protruding three or more steps. In addition, the buffer 320 may be formed integrally with the block main body and formed by extending the movable plug main body 310. When the deflector block 700 is pushed in by the movable plug 300 and the buffer portion 320 comes into contact with the fluid discharge portion 2 of the fluid discharge member 200, the buffer portion 320 is bent due to the elasticity or plasticity of the formed material. Thereby, even if it is a case where the deflector block 700 is pushed in strongly, an impact can be relieved.

  In particular, the fluid discharge device 1000 preferably functions as a needleless syringe. Further, a device that functions as a mucosal administration device, particularly a nasal administration device is preferable. The fluid discharge device of the present invention can be used for a liquid medicine or a powder medicine. A preferred application mode of the fluid discharge device of the present invention is used for administration of vaccines and antiemetics.

(3-1. How to use)
Next, a method for using the fluid discharge device of the present invention will be described. That is, the present invention includes a fluid discharge method using the above-described fluid discharge device and a fluid administration method.

  As described above, the ampule 1, the fluid discharge member 200, and the movable stopper 300 function as an ampule container containing a fluid. Since the protective portion 4 is attached to the tip of the fluid discharge member 200 so that the fluid discharge member 200 is not pushed into the ampoule 1 side, the fluid in the ampoule 1 is not discharged outside the ampoule.

  The fluid discharge device 1000 of the present invention can be manufactured using, for example, resin or glass. Further, for example, the ampoule 1 may be made of glass and the other parts may be made of resin. Further, the spring may be made of metal or ceramics. After the design of the shape is completed, the fluid discharge device 1000 can be obtained by manufacturing each element using various molds and molds. That is, the fluid discharge device can be manufactured by appropriately modifying a known method for manufacturing a syringe or ampoule.

  When the fluid discharge device 1000 is used, the protection part 4 of the fluid discharge member 100 is removed. That is, the protective part 4 may be removed by screwing the body part, or when the force from the lateral direction with respect to the central axis of the protective part 4 is applied, the protective part 4 is removed by the wall property. Also good. In the case of the fluid ejection member 100 of the present invention, the surface from which the protective portion 4 is removed, that is, the surface caused by damaging the connecting portion 5 does not directly touch the patient's skin. It doesn't have to be beautiful. By removing the protection part 4, the exposed part 21 of the fluid ejection member 100 is exposed and the flow path 22 is opened.

  Then, for example, by placing the middle finger and the index finger on the wing, placing the thumb on the piston base 402, and applying force to the thumb so as to push the piston base 402, the movable plug 300 is given momentum. Then, the movable stopper 300 moves. When the movable stopper 300 moves, the fluid stored in the ampoule 1 is discharged from the fluid discharge port 23 of the fluid discharge member 100. In this way, the fluid is discharged from the fluid discharge device 1000. When the fluid is discharged from the fluid discharge device 1000, whether it is discharged in a concentrated manner or sprayed over a relatively wide range is largely determined by the structure of the fluid discharge member 100.

Claims (9)

A fluid ejection part (2) having an exposed part (21) exposed from the container body (1);
A holding part (3) for holding the fluid discharge part (2) at an end in the container body (1) such that the exposed part (21) is exposed from the container body (1);
A protective part (4) having a groove part (41) of a size corresponding to the exposed part (21);
A connecting part (5) for connecting the protective part (4) to the holding part (3) so that the groove part (41) covers the exposed part (21);
The connecting part (5) has a material thickness thinner than that of the holding part (3) and the protective part (4),
Applying force to the protection part (4) breaks the connecting part (5) and exposes the exposed part (21) of the fluid discharge part (2).
The fluid discharge part (2) is provided along the central axis of the fluid discharge part (2) for discharging the fluid in the container body (1) to the outside of the container body (1). Having a flow path (22),
The fluid discharge member according to claim 1, wherein the flow path (22) is tapered as the flow proceeds from the inside to the outside of the container body (1).
The exposed portion (21) of the fluid discharge portion (2) is raised in a truncated cone shape,
The fluid ejection member according to claim 2, wherein the flow path (22) of the fluid ejection section (2) has a conical apex angle formed by extending a tapered portion.
The exposed portion (21) of the fluid discharge portion (2) is recessed in a truncated cone shape,
The fluid discharge member according to claim 2, wherein the flow path (22) of the fluid discharge section (2) has an obtuse angle with a conical apex formed by extending a tapered portion.
The fluid discharge member according to claim 4, wherein the flow path (22) includes a rotation groove (22a) that controls a rotation direction of a fluid flowing through the flow path (22).
The fluid discharge member according to claim 1, wherein the holding part (3) and the protection part (4) are integrally formed via the connection part (5).
Including the fluid ejection member according to any one of claims 1 to 6,
Container body (1).
The fluid ejection member according to any one of claims 1 to 6,
An ampoule (1) including the fluid ejection member;
A movable stopper (300) disposed in the ampoule;
A movable stopper in the ampoule includes a piston (400) that is movable so as to advance and retreat in the ampoule;
Fluid discharge device.
Further, the ampoule 1 includes a deflector block (700) disposed in proximity to the fluid discharge member,
The deflector block (700) has an outer peripheral wall having substantially the same diameter as the inner wall in the ampoule 1,
The fluid discharge device according to claim 8, wherein a shunt groove (710) is formed in the outer peripheral wall.

Images