JPWO2013150956A1 - Male member hood and male connector - Google Patents

Abstract

The male member hood (20) surrounds the periphery of the rod-shaped male member (10), and is provided on the annular part (21) into which the female connector is inserted and so as to protrude toward the male member. And a pair of claws (22) opposed to each other and a pair of pressing parts (23) provided in the annular portion and opposed in a direction orthogonal to the direction in which the pair of claws oppose each other. When a pressing force F in a direction in which the pair of pressing portions (23) approach each other is applied to the pair of pressing portions (23), the annular portion (21) is elastically deformed so that the pair of claws (22) are separated. .

Description

  The present invention relates to a male member hood attached to a male member in order to maintain a connection state with a female member. Moreover, this invention relates to the male connector provided with the hood for male members.

  When administering a powdered medicine stored in a vial to a patient, generally, a solution is injected into the vial to dissolve the drug, and then a solution of the drug (medicine) is injected into the drug solution bag. A bottle needle with a sharp tip on a rubber stopper (female member) that seals the mouth (female connector) of the vial to inject the solution into the vial or to take out the drug solution from the vial. (Male member) is punctured.

  Some drugs are designated as powerful drugs, such as some anticancer drugs. It is necessary to avoid a situation in which a chemical solution containing such a dangerous drug leaks out and adheres to an operator's finger or the like, or the operator sucks the vapor.

  For this reason, it is necessary to prevent the bottle needle from unintentionally falling off the rubber stopper during the above-described series of preparation of the chemical solution.

  Patent Documents 1 and 2 disclose a substantially cylindrical hood 920 surrounding the bottle needle 910 as shown in FIG. The hood 920 is divided into four hood pieces 926 by four slits 924 provided at equiangular intervals. A claw 922 that engages with the vial is provided on the surface of each hood piece 926 facing the bottle needle 910.

  As shown in FIG. 10, the bottle needle 910 is opposed to the rubber stopper 805 of the vial 800. In FIG. 10, the rubber stopper 805 is attached to the mouth 802 of the vial 800, whereby the vial 800 is sealed. A cap 806 is attached to the mouth 802 and the rubber stopper 805 so that the rubber stopper 805 does not come off from the mouth 802. An opening 807 is formed at the center of the cap 806, and the rubber plug 805 is exposed in the opening 807.

  From this state, the bottle needle 910 is pierced into the rubber stopper 805 exposed in the opening 807 and pushed toward the vial 800. The bottle needle 910 punctures the rubber stopper 805 and penetrates it.

  FIG. 11 is a cross-sectional view showing a state where the bottle needle 910 communicates with the vial bottle 800. The rubber stopper 805 and the mouth 802 of the vial 800 are inserted into the hood 920 provided around the bottle needle 910, and the claw 922 provided on the inner peripheral surface of the hood 920 is located below the mouth 802 of the vial 800. It is engaged with the edge 803b. The engagement between the claw 922 and the mouth 802 prevents the bottle needle 910 from coming out of the rubber stopper 805.

International Publication No. 2010/061742 Pamphlet International Publication No. 2010/061743 Pamphlet Japanese Patent No. 3389983

  The conventional hood 920 is attached to and detached from the mouth 802 of the vial 800 by pushing and pulling the hood 920 against the vial 800 along the longitudinal direction of the bottle needle 910. In order for the claw 922 to slide in the vertical direction on the outer peripheral surface of the mouth 802 and the rubber plug 805 and get over the mouth 802 and the rubber plug 805, the hood 920 needs to be elastically deformed to expand the diameter. The force for expanding the diameter of the hood 920 is the pushing and pulling between the hood 920 and the vial 800 acting on the collision portion between the claw 922 and the upper edge 803a of the rubber stopper 805 and the lower edge 803b of the mouth 802. Depends on power. For this reason, in order to attach and detach the hood 920 to and from the mouth 802, it is necessary to apply a large pulling force between the hood 920 and the vial bottle 800.

  In order to reduce the force required to attach / detach the hood 920 to / from the mouth 802, methods such as reducing the rigidity of the hood 920 and reducing the protruding height of the claw 922 are conceivable. However, in any of the methods, the engagement between the claw 922 and the mouth 802 is unintentionally disengaged, and there is a high possibility that the bottle needle 910 is detached from the rubber stopper 805.

  The present invention provides a male member hood that can be engaged with a female connector so that the male member inserted into the female member does not unintentionally come out of the female member and can be easily attached to and detached from the female connector. The purpose is to do. Another object of the present invention is to provide a male connector provided with such a male member hood, which has both safety and detachability.

  The male member hood of the present invention is a male member hood that can be attached to and detached from the female connector. The male member hood surrounds the periphery of the rod-shaped male member, and the male part is inserted into the annular part and the male part. A pair of opposing claws provided to protrude toward the member, and a pair of pressing portions provided in the annular portion and facing in a direction perpendicular to the direction in which the pair of claws oppose . When a pressing force in a direction in which the pair of pressing portions approach each other is applied to the pair of pressing portions, the annular portion is elastically deformed so that the pair of claws are separated from each other.

  The male connector of this invention is equipped with a rod-shaped male member and said male member hood of this invention.

  According to the present invention, the pair of claws engage with the female connector, so that the male member inserted into the female member can be prevented from unintentionally coming off the female member. Moreover, since the space | interval of a pair of nail | claw is expanded by pressing a pair of press part, attachment / detachment of the food | hood with respect to a female connector is easy. Therefore, it is possible to provide a male connector in which both safety and attachment / detachment workability are compatible.

FIG. 1 is a perspective view of a male member hood according to an embodiment of the present invention. FIG. 2 is a plan view of the male member hood according to the embodiment of the present invention. FIG. 3 is a cross-sectional perspective view of the male member hood according to the embodiment of the present invention. FIG. 4 is a perspective view showing a male member hood according to an embodiment of the present invention immediately before being connected to a vial. 5A and 5B are cross-sectional views showing a male member hood according to an embodiment of the present invention immediately before being connected to a vial. FIG. 6 is a perspective view showing a male member hood according to an embodiment of the present invention connected to a vial. 7A and 7B are cross-sectional views showing a male member hood according to an embodiment of the present invention connected to a vial. FIG. 8 is a cross-sectional perspective view of a male member hood according to another embodiment of the present invention. FIG. 9 is a perspective view of a conventional male member hood. FIG. 10 is a cross-sectional view showing a conventional male member hood immediately before connection to a vial. FIG. 11 is a cross-sectional view illustrating a conventional male member hood connected to a vial.

  The male member hood of the present invention is a male member hood that can be attached to and detached from the female connector. The male member hood surrounds the periphery of the rod-shaped male member, and the male part is inserted into the annular part and the male part. A pair of opposing claws provided to protrude toward the member, and a pair of pressing portions provided in the annular portion and facing in a direction perpendicular to the direction in which the pair of claws oppose . When a pressing force in a direction in which the pair of pressing portions approach each other is applied to the pair of pressing portions, the annular portion is elastically deformed so that the pair of claws are separated from each other.

  In the male member hood according to the present invention described above, the inner dimension of the annular part along the direction in which the pair of pressing parts opposes is larger than the inner dimension of the annular part along the direction in which the pair of claws oppose each other. It is preferable. Accordingly, it is possible to easily realize an annular portion that is elastically deformed so that the pair of pressing portions approach each other and the pair of claws are separated from each other with the female connector having a cylindrical outer shape inserted into the annular portion. it can.

  It is preferable that the hood for male members of the present invention further includes a pair of holding plates that are separated from the annular portion via a slit. In this case, it is preferable that the female connector is inserted between the pair of holding plates. Accordingly, the posture of the hood with respect to the female connector when the hood is attached to the female connector is corrected. This is advantageous for stably engaging the pawl with the female connector.

  It is preferable to further include an abutting portion that regulates an insertion depth of the male member with respect to the female connector by abutting on the female connector. This is advantageous for reducing the inclination of the hood attached to the female connector. Further, it is advantageous for stably engaging the claw with the female connector. Furthermore, by inserting the female connector too deeply into the hood, it is advantageous to reduce the possibility of the hood being accidentally damaged.

  The male connector of this invention is equipped with a rod-shaped male member and said male member hood of this invention.

  The male member may be a bottle needle that is pierced into a rubber stopper of a vial.

  Below, this invention is demonstrated in detail, showing suitable embodiment. However, it goes without saying that the present invention is not limited to the following embodiments. For convenience of explanation, the drawings referred to in the following description show only the main members necessary for explaining the present invention in a simplified manner among the constituent members of the embodiment of the present invention. Therefore, the present invention can include arbitrary components not shown in the following drawings. In addition, the dimensions of the members in the following drawings do not faithfully represent the actual dimensions of the constituent members and the dimensional ratios of the members.

  FIG. 1 is a perspective view showing a male member hood (hereinafter simply referred to as “hood”) 20 according to an embodiment of the present invention. In this embodiment, the bottle needle 10 punctured by the rubber stopper of the vial is used as the male member. The male connector 1 is composed of the hood 20 and the bottle needle 10. 2 is a plan view of the hood 20, and FIG. 3 is a cross-sectional perspective view of the hood 20 along a plane including the central axis 10a of the bottle needle 10. As shown in FIG. For convenience of the following description, the longitudinal direction of the bottle needle 10 (the direction of the central axis 10a) is referred to as “vertical direction”. In the vertical direction, the side closer to the base 19 is referred to as “base end side”, and the side far from the base 19 is referred to as “tip side”.

  The bottle needle 10 is a rod-like member protruding from the center of the base 19 having a substantially circular shape in plan view. The bottle needle 10 includes a conical portion 15 having a substantially conical surface (tapered surface) outer surface and a columnar portion 16 that connects the conical portion 11 and the base 19 in order to form a sharp tip 10t. In the present embodiment, the outer peripheral surface of the columnar portion 16 is a tapered surface whose outer diameter slightly decreases as it approaches the conical portion 15. The taper angle of the outer peripheral surface of the columnar part 16 is smaller than the taper angle of the conical part 15. However, the shape of the outer peripheral surface of the bottle needle 10 is not limited to this, and can be arbitrarily configured. For example, the outer peripheral surface of the columnar portion 16 may be a cylindrical surface whose outer diameter is constant in the direction of the central axis 10a. In the present embodiment, the outer peripheral surface of the columnar portion 16 is configured by two tapered surfaces having different taper angles, but may be configured by a single tapered surface, or may be configured by a tapered surface and / or a cylinder. You may comprise combining the surface arbitrarily. Further, the outer peripheral surface of the bottle needle 10 does not need to be clearly distinguished from the conical portion 15 and the columnar portion 16, and is, for example, a curved surface whose outer diameter gradually changes as it approaches the base 19 from the tip 10t. It may be configured.

  As shown in FIG. 3, in the bottle needle 10, two flow paths 11 and 12 substantially parallel to the central axis 10 a are formed independently of each other. The channel 11 is a liquid channel through which liquid flows, and the channel 12 is a gas channel through which gas flows. The liquid flow path 11 communicates with the lateral hole 11a on the tip 10t side. The lateral hole 11 a extends along a direction orthogonal to the central axis 10 a and opens on the outer peripheral surface of the columnar portion 16. The gas flow path 12 is opened in the outer peripheral surface of the conical part 15 in the front end 10t side.

  Since the configuration of the base 19 on the side opposite to the bottle needle 10 is not directly related to the present invention, it is omitted. The base 19 may be a part of a connector (not shown) connected to a vial, for example. For example, the structure of the connector described in Patent Documents 1 and 2 can be applied to this embodiment. In the present embodiment, the liquid channel 11 and the gas channel 12 are opened on the lower surface of the base 19, but may be extended to communicate with a desired channel.

  A hood 20 is erected from the base 19 on the same side as the bottle needle 10 so as to surround the bottle needle 10. The hood 20 includes an annular portion 21 that is continuous in the circumferential direction (rotating direction around the bottle needle 10) on the tip side (the side farthest from the base 19). The planar view shape of the annular portion 21 is a substantially elliptical shape or a substantially oval shape. A pair of claws 22 are provided on the inner peripheral surface of the annular portion 21. The pair of claws 22 are opposed to the short axis direction of the annular portion 21. The claw 22 protrudes toward the bottle needle 10 and includes an inclined portion 22a on the distal end side and an engaging portion 22b on the proximal end side (base 19 side). The inclined portion 22a is an inclined surface that is inclined so that the distance to the bottle needle 10 increases as the distance from the base 19 increases. The engaging portion 22b is a plane substantially along a plane orthogonal to the longitudinal direction of the bottle needle 10.

  A pair of pressing portions 23 are provided on the annular portion 21 so as to oppose a direction orthogonal to the direction in which the pair of claws 22 are opposed (that is, the major axis direction of the annular portion 21).

  As shown in FIG. 2, the inner dimension (excluding the claws 22) D22 of the annular portion 21 along the direction in which the pair of claws 22 face each other, and the annular shape along the direction in which the pair of pressing portions 23 face each other. The inner dimension D23 of the part 21 is larger. The inner dimension D22 is substantially the same as or slightly larger than the outer diameter of the mouth 802 of the vial 800 and the rubber stopper 805 to which the hood 20 is applied.

  In the annular portion 21, the connecting portion 24 connects the claw 22 and the pressing portion 23. The connecting portion 24 is inclined with respect to the short axis direction and the long axis direction of the annular portion 21.

  The annular portion 21 is fixed to the base 19 via four support members 25 extending in the vertical direction from the vicinity of the claw 22. The number of support members 25 need not be four, and may be two, for example.

  A pair of holding plates 26 are erected from the base 19 between the pair of pressing portions 23 of the annular portion 21 and the base 19. The pair of holding plates 26 are opposed in the same direction as the direction in which the pair of pressing portions 23 are opposed. A substantially “U” -shaped slit 27 separates the holding plate 26 from the annular portion 21 and the support member 25. The opposing surfaces of the pair of holding plates 26 are cylindrical surfaces, and the inner dimensions thereof substantially coincide with the outer diameters of the mouth 802 and the rubber stopper 805 of the vial 800 to which the hood 20 is applied. On the surface of the holding plate 26 facing the bottle needle 10, a rib 28 extending in the vertical direction protrudes toward the bottle needle 10. In this example, four ribs 28 are formed at equiangular intervals, but the number of ribs 28 and the arrangement position around the bottle needle 10 are not limited thereto.

  As shown in FIG. 2, when a pressing force F is applied to the pair of pressing portions 23 such that the pair of pressing portions 23 approach each other, the inclined connecting portion 24 connects the pressing portion 23 and the claw 22. Therefore, the annular portion 21 is elastically deformed so that the pair of claws 22 are separated from each other. At this time, the support member 25 connected to the annular portion 21 is also elastically deformed in such a direction that the end portion far from the base 19 is separated from the bottle needle 10 in accordance with the deformation of the annular portion 21. On the other hand, since the holding plate 26 is separated from the annular portion 21 and the support member 25 by the slit 27, even if the annular portion 21 and the support member 25 are elastically deformed, the holding plate 26 is hardly deformed.

  The bottle needle 10, the base 19 and the hood 20 are preferably made of a hard material. Specifically, the bottle needle 10, the base 19, and the hood 20 can be formed by a method such as integral molding using a resin material such as polyacetal, polycarbonate, polystyrene, polyamide, polypropylene, and hard polyvinyl chloride. .

  The usage method and effect | action of the food | hood 20 of this embodiment comprised as mentioned above and the male connector 1 provided with the same are demonstrated.

  First, as shown in FIG. 4, the bottle needle 10 is made to face the rubber stopper 805 of the vial 800. 5A and 5B are cross-sectional views showing this state. 5A passes through the pair of claws 22, and the cross section of FIG. 5B passes through the pair of pressing portions 23. The configuration of the vial 800 is the same as that shown in FIG.

  At this time, the vial 800 is held with one hand, and the hood 20 is held with the other hand. A pressing force F is applied to the pair of pressing parts 23 with two fingers so that the pair of pressing parts 23 approach each other, and the interval between the pair of claws 22 is expanded.

  From this state, the bottle needle 10 is pierced into the rubber stopper 805 exposed in the opening 807 and pushed toward the vial bottle 800. The bottle needle 10 punctures the rubber stopper 805 and penetrates it. In parallel with this, the rubber stopper 805 and the mouth 802 of the vial 800 are inserted into the annular portion 21 of the hood 20. At this time, the edge 803a on the upper side (the hood 20 side) of the rubber plug 805 may collide with the inclined portion 22a of the claw 22. However, since the distance between the pair of claws 22 has already been expanded by applying the pressing force F to the pair of pressing portions 23 as described above, only a slight pressing force toward the vial 800 is further applied to the hood 20. Thus, the annular portion 21 is elastically deformed so that the distance between the pair of claws 22 is increased, and the claws 22 pass through the end edge 803a.

  After the claw 22 gets over the mouth 802 of the vial 800, when the pressing force F to the pressing portion 23 is stopped, the annular portion 21 is elastically recovered, and the claw 22 is fitted into the constricted portion 804 below the mouth 802. 22 and the mouth 802 are engaged. FIG. 6 is a perspective view showing this state, and FIGS. 7A and 7B are sectional views thereof. The cross sections of FIGS. 7A and 7B are the same as the cross sections of FIGS. 5A and 5B, respectively. A rubber plug 805 and a mouth 802 are inserted between the pair of holding plates 26. The tip 28a of the rib 28 (see FIGS. 1 and 3) collides with the upper surface of the rubber stopper 805.

  As shown in FIGS. 7A and 7B, the bottle needle 10 passes through the rubber stopper 805. The lateral hole 11a opened to the tip 10t side of the bottle needle 10 and the gas flow path 12 are exposed in the vial 800. In this state, the liquid can be allowed to flow into the vial 800 through the liquid channel 11 and the lateral hole 11a, and the liquid in the vial 800 can be allowed to flow out of the vial 800. When liquid enters and exits the vial 800, air enters and exits the vial 800 through the gas flow path 12. Thereby, the fluctuation | variation of the atmospheric | air pressure in the vial bottle 800 is reduced, and entrance / exit of the liquid is made easy.

  In the state of FIG. 6, FIG. 7A and FIG. 7B, the hood 20 and the vial 800 are separated after the liquid is taken in and out of the vial 800 through the liquid flow path 11 and the lateral hole 11a of the bottle needle 10. To do.

  Separation is performed while holding the vial 800 with one hand and holding the hood 20 with the other hand, as in the connection between the hood 20 and the vial 800. At this time, a pressing force F is applied to the pair of pressing portions 23 with two fingers so that the pair of pressing portions 23 come close to each other, and the interval between the pair of claws 22 is expanded. Thereby, the engagement between the claw 22 and the mouth 802 is released. Then, what is necessary is just to apply the force of the direction which mutually separates to the food | hood 20 and the vial bottle 800. FIG.

  As described above, according to the present embodiment, the pair of claws 22 engage with the mouth 802 of the vial 800 while the bottle needle 10 has punctured the rubber stopper 805. Therefore, the bottle needle 10 is prevented from unintentionally coming out of the rubber stopper 805.

  When a pair of pressing portions 23 are applied with a pressing force in a direction in which the pair of pressing portions 23 approach each other, the annular portion 21 is elastically deformed so that the pair of claws 22 are separated from each other. Accordingly, when the bottle needle 10 is punctured into the rubber stopper 805 and when the bottle needle 10 punctured into the rubber stopper 805 is removed from the rubber stopper 805, when the hood 20 is held while pressing the pair of pressing portions 23, a pair of The distance between the claws 22 is increased. Therefore, the hood 20 can be easily attached to and detached from the mouth 802 of the vial 800.

  When the conventional hood 920 shown in FIGS. 9 to 11 is attached to and detached from the mouth 802 of the vial 800, the diameter of the hood 920 is elastically expanded by the pushing and pulling force applied between the hood 920 and the vial 800. I have to let it. For this reason, a large force is required to attach and detach the hood 920 and the mouth 802.

  On the other hand, in this embodiment, the space | interval of a pair of nail | claw 22 is expanded by pressing a pair of press part 23. FIG. Therefore, the pressing force F applied to the pair of pressing portions 23 can be used to efficiently increase the distance between the pair of claws 22. As a result, the hood 20 can be attached to and detached from the mouth 802 of the vial 800 with a relatively small force.

  Moreover, since the protrusion amount from the annular part 21 of the nail | claw 22 can be enlarged by this, the connection strength of the food | hood 20 and the opening | mouth 802 improves.

  In the present embodiment, when the hood 20 and the vial 800 are separated, by pressing the pair of pressing portions 23, the distance between the pair of claws 22 is increased and the engagement between the claws 22 and the mouth 802 is released. To do. Therefore, the engaging portion 22b (see FIG. 3) of the claw 22 does not need to consider the ease of releasing the engagement between the claw 22 and the mouth 802, and is substantially along the plane perpendicular to the longitudinal direction of the bottle needle 10. Can be flat. As a result, even if forces in the direction in which the hood 20 and the vial 800 are separated from each other act on the hood 20 and the vial 800 with the hood 20 attached to the mouth 802, the engagement between the claw 22 and the mouth 802 is not easily released.

  When the hood 20 is attached to the mouth 802, the rubber stopper 805 and the mouth 802 are inserted between the pair of holding plates 26 of the hood 20. Since the holding plate 26 is separated from the annular portion 21 and the support member 25 by the slit 27, the distance between the pair of holding plates 26 is constant regardless of the deformation of the annular portion 21. Further, the rib 28 extending from the base 19 improves the rigidity of the holding plate 26. Therefore, the posture of the hood 20 and the bottle needle 10 with respect to the rubber stopper 805 and the mouth 802 is corrected by inserting the rubber stopper 805 and the mouth 802 of the vial 800 between the pair of holding plates 26. This is advantageous for stably engaging the pawl 22 with the mouth 802.

  Furthermore, the insertion depth of the bottle needle 10 with respect to the rubber plug 805 can be restricted by the tip (contact portion) 28a of the rib 28 colliding with the upper surface of the rubber plug 805. Further, the inclination of the hood 20 and the bottle needle 10 with respect to the rubber stopper 805 can be reduced. In addition, the vial bottle 800 can be sandwiched in the vertical direction (longitudinal direction of the bottle needle 10) by the tip 28a of the rib 28 and the claw 22. These are advantageous for stably engaging the pawl 22 with the mouth 802. Furthermore, if the rubber plug 805 is erroneously inserted too deeply into the hood 20, the possibility of an erroneous operation of damaging the hood 20 (particularly the annular portion 21) can be reduced.

  The above embodiments are merely examples. The present invention is not limited to the above embodiment, and can be modified as appropriate.

  In the above embodiment, the female member pierced into the bottle needle 10 which is a male member is the rubber stopper 805, and the female connector provided with the female member is described as an example, but the mouth 802 of the vial 800 is described as an example. The female member and the female connector to which the male member cover and the male connector of the present invention are applied are not limited thereto. For example, as described in Patent Document 3, the female member is a partition member made of an elastic material such as rubber having a linear slit (cut) at the center (sometimes referred to as a “septum”). The female connector may be a needleless port provided with the partition member. In this case, as shown in FIG. 8, as the male member, there is a male luer 30 whose outer peripheral surface is a tapered surface or a cylindrical surface and in which one liquid channel 31 is formed along the central axis. Used. Although a detailed description is omitted, the needleless port is inserted into the annular portion 21 and between the pair of holding plates 26, and the pair of claws 22 are formed on the outer peripheral surface of the needleless port, as in the above embodiment. It can be engaged with the recess. The male luer 30 is inserted into the slit of the partition member. When the male luer 30 is removed from the slit of the partition member, the slit is immediately closed.

  In the above embodiment, the ribs 28 extend in the vertical direction, but the shape of the ribs is not limited to this. For example, you may extend in the circumferential direction on the inner peripheral surface of the hood so as to surround the male member (bottle needle 10). In this case, the surface of the rib opposite to the base 19 is a contact portion that contacts the female connector. Alternatively, the ribs 28 may be omitted.

  The number of holding plates 26 need not be two. For example, each holding plate 26 may be divided into two or more by linear slits extending in the vertical direction. In the above embodiment, the pair of holding plates 26 may be omitted and opened.

  In order to easily apply a pressing force to the pressing portion 23 of the annular portion 21, the surface of the pressing portion 23 is enlarged, or an uneven shape is formed on the outer surface of the pressing portion 23 in order to prevent finger slipping with respect to the pressing portion 23. Or you may.

  The planar view shape of the annular portion 21 needs to be a substantially elliptical shape or a substantially oval shape having a short axis in a direction in which a pair of claws face each other and a long axis in a direction perpendicular thereto as in the above embodiment. For example, any shape such as a circle or a diamond may be used. However, when the pair of pressing parts is pressed with the female connector inserted into the annular part, the annular part can be elastically deformed so that the distance between the pair of pressing parts is reduced and the distance between the pair of claws is enlarged. Thus, it is desirable that an appropriate gap be formed between the annular portion in the natural state and the female connector.

  The present invention can be applied to any male connector. For example, in a chemical solution bag and / or a vial provided in a connector (for example, see Patent Documents 1 and 2) to which a vial, a chemical solution bag, and a syringe for moving a liquid between them are connected. The present invention can be applied as a male connector to be connected.

  The field of use of the present invention is not particularly limited, and can be widely used in fields where a lock mechanism for maintaining the state in which the male member is inserted into the female member is required. In particular, in the medical field, it can be preferably used in a connection portion between a male member and a female member that may leak dangerous chemicals or blood. However, it can also be used for applications other than medical applications, such as food applications and general industrial applications.

1 Male connector 10 Bottle needle (male member)
20 Male member hood 21 Annular portion 22 Claw 23 Pressing portion 26 Holding plate 27 Slit 28 Rib 28a Rib tip (contact portion)
30 male lures (male members)
802 Vial mouth (female connector)
805 Rubber stopper of a vial (female member)
F Push force

Claims (6)

A male member hood detachable from a female connector,
Surrounding the periphery of the rod-shaped male member, an annular portion into which the female connector is inserted,
A pair of claws opposed to each other provided on the annular portion so as to protrude toward the male member;
A pair of pressing portions provided in the annular portion and facing in a direction perpendicular to a direction in which the pair of claws are opposed to each other;
The male member hood is characterized in that when the pressing force in the direction in which the pair of pressing parts approach each other is applied to the pair of pressing parts, the annular part is elastically deformed so that the pair of claws are separated from each other. .   The male member hood according to claim 1, wherein an inner dimension of the annular portion along a direction in which the pair of pressing portions opposes is larger than an inner dimension of the annular portion in a direction in which the pair of claws oppose each other. Further comprising a pair of holding plates separated via slits with respect to the annular portion,
The male member hood according to claim 1 or 2, wherein the female connector is inserted between the pair of holding plates.   The male member hood according to any one of claims 1 to 3, further comprising a contact portion that regulates an insertion depth of the male member with respect to the female connector by contacting the female connector.   A male connector provided with a rod-shaped male member and the male member hood according to claim 1.   The male connector according to claim 5, wherein the male member is a bottle needle pierced by a rubber stopper of a vial bottle.

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