Abstract: A pressure bag (1) has a bag-like shape including an opening (11) at one end thereof and a bottom portion (12) on the opposite side to the opening (11). The pressure bag (1) has a double structure in which an inner sheet (20) and an outer sheet (30) are laid one on top of the other so that the outer sheet (30) is located on the opposite side of the inner sheet (20) from the housing chamber (10). A pressure chamber (15) is provided between the inner sheet (20) and the outer sheet (30). All of the inner sheet (20), the outer sheet (30), and the pressure chamber (15) extend from one side to the other side of the housing chamber (10) via the bottom portion (12).

Abstract: A pressure bag (1) has a bag-like shape including an opening (11) at one end thereof and a bottom portion (12) on the opposite side to the opening (11). The pressure bag (1) has a double structure in which an inner sheet (20) and an outer sheet (30) are laid one on top of the other so that the outer sheet (30) is located on the opposite side of the inner sheet (20) from the housing chamber (10). A pressure chamber (15) is provided between the inner sheet (20) and the outer sheet (30). All of the inner sheet (20), the outer sheet (30), and the pressure chamber (15) extend from one side to the other side of the housing chamber (10) via the bottom portion (12).

Abstract: A female connector (1) is connectable to a male connector (100) including a cylindrical male member (921). The female connector (1) includes: a tubular portion (11) having a hollow circular cylindrical shape to which the male member (921) is insertable; and a cylindrical portion (17) having a hollow circular cylindrical shape that is coaxial with the tubular portion (11) and surrounded by the tubular portion (11). When the male member (921) is inserted into the tubular portion (11), a liquid-tight seal (19) is formed between the cylindrical portion (17) and the male member (921), and the cylindrical portion (17) and the male member (921) communicate with each other.

Abstract: A tube end (14) of a barrel (12) of an injector (1) includes a tubular portion (921) on which a spiral projection (925) is formed, and an inner circumferential surface of the tubular portion is a female tapered surface (922). A small-diameter portion (16) is formed between a liquid storing portion (15) into which a plunger (18) is inserted and the tubular portion (921). A base end (21) of a liquid collection needle (20) is fluid-tightly connected to the small-diameter portion (16), and a leading end of the liquid collection needle (20) protrudes from the tube end (14).

Abstract: The medical liquid collection tip (1) includes a male member (11) that is to be inserted into a tube end (154) of an injector (150) at one end, and includes a liquid collection needle (20) at the other end. A flow path (8) penetrates through the tip (1) in a lengthwise direction thereof and causes the male member (11) and the liquid collection needle (20) to be in communication. The outer circumferential surface (12) of the male member (11) is a male tapered surface with an outer diameter that becomes smaller as the leading end is approached, and is configured to be fluid-tightly connected to the female tapered surface of the tube end (154).

Abstract: A double male connector (1) includes a first male luer (10) on one end and a second male luer (20) on the other end. The first male luer (10) and the second male luer (20) are in communication with each other. An outer circumferential surface of the first male luer (10) constitutes a first tapered surface (12) whose outer diameter decreases toward a leading end of the first male luer, and an outer circumferential surface of the second male luer (20) constitutes a second tapered surface (22) whose outer diameter decreases toward a leading end of the second male luer. A tubular portion (15) surrounds the first male luer (10). A female screw (16) is formed on an inner circumferential surface of the tubular portion (15).

Abstract: In a female connector 15 of the present invention, a surface of an engagement wall 217 facing an engagement tab 14 when the female connector 15 is connected to a male connector 10 includes an inclined surface 222 which the engagement tab 14 mounts in a sliding direction of the engagement tab 14 with respect to the engagement wall 217 during the connection between the female connector 15 and the male connector 10. Further, in a male connector 30 of the present invention, a surface of the engagement tab 34 opposed to the engagement wall 417 when the female connector 35 is connected to the male connector 30 includes an inclined surface 34a which the engagement wall 417 mounts in a sliding direction of the engagement wall 417 with respect to the engagement tab 34 when during the connection between the female connector 35 and the male connector 30.

Abstract: A cap (13) to be mounted to a mouth part of a main container unit of a nutritional supplement container (10) is provided for flowing out a liquid substance filled in the main container unit. The main container unit includes a thin film (16) that is attached to the mouth part so as to seal the interior of the main container unit. The cap can take a first mounted state and a second mounted state with respect to the mouth part. In the first mounted state, the mounted state of the cap with respect to the mouth part is held in a state where an end surface of a hollow nozzle (22) of the cap is located not in contact with the thin film or in contact with the thin film but not pressing the thin film. In the second mounted state, the mounted state of the cap with respect to the mouth part is held in a state where the thin film is broken by the hollow nozzle and the hollow nozzle is located inside the mouth part.

Abstract: A spout (4) that is attached to a pouch-like bag and through which the contents filled in the bag are discharged, the spout includes: a tubular portion (49) in which a through hole (12) is formed and from a leading end of which the contents are discharged; and a rib (20) that extends from the inner circumferential surface of the tubular portion (9) towards the central axis side (13) of the through hole (12). A hole (21) surrounded by the edge of the extended rib (20) is formed in the part where the rib (20) is formed. This configuration makes it easy to secure the strength of the rib (20) and is advantageous in preventing breakage and deformation of the rib (20). Thus, accidental insertion of connecting needles can be prevented with more certainty.

Abstract: A spout (4) that can be attached to a liquid container and through which contents with which the liquid container is filled are discharged, the spout including: a tubular portion (9) in which a through hole (12) is formed and from a leading end of which the content is discharged; and ribs (20) that partition the through hole (12). When the tubular portion (9) is seen from the leading end side, the through hole (12) is divided into at least three parts by the ribs (20). Thus, the strength of the ribs (20) is easily secured, which is advantageous in preventing breakage or deformation of the ribs (20), and also erroneous piercing with a connecting needle is reliably prevented.

Abstract: A female connector (100) to be connected to a male connector (170) having a tubular section (172), out of which a liquid-like substance flows, is disclosed. The female connector has an adaptor (110) installed on the outer peripheral surface of the tubular section, and a handle (120) fitted on the adaptor. The adaptor has a tube-shaped section (112) having an opening (119a) at one end. The tube-shaped section includes an insertion section (119) into which the tubular section is inserted from the opening, and the insertion section has flexibility and elasticity. The handle has a rigidity higher than that of the insertion section of the adaptor. There is provided movement limitation means that limits a range in which the handle is capable of moving relative to the adaptor from an end of the adaptor on an opposite side of the opening to an end thereof on the opening side in a direction of a center axis (111) of the adaptor.

Abstract: A first object is to offer a safety device that allows to effectively solve problems regarding transfusion including free-flow issues in the case where the transfusion tube comes off from the transfusion pump, by employing a comparatively simple structure constructed at a low cost. A second object is to offer a safety device that can be newly added to an existing transfusion pump having no safety device. Specifically speaking, the case 100 in a tubular shape having a base, the compression spring 130, and the clamp 10 having the movable body 120 are set in the socket 20 having a cross-sectional shape of a square bracket. When the clamp 10 is set in the socket 20, the through-holes 101 and 121 become open, which allows distribution of fluid in the transfusion tube. On the other hand, when the clamp 10 becomes detached from the socket 20, the tension of the compression spring 130 causes the movable body 120 to slide, and the through-holes 101 and 121 are closed.

Abstract: A medical syringe comprising a cylindrical connection supporting member increasing the holding force of a lure inserted into a connection target. The connection supporting member is formed to be slid along the lure or a syringe body part in a state of being movable between a first position near a tip of the lure and a second position away from a tip of the lure. The syringe is characterized in that, when the connection supporting member is moved to the second position, the tip of the lure is exposed.

Abstract: An injection needle retractable injector, comprising a barrel having a plunger inserted into a hollow formed therein, a needle base (3) fitted to the tip part of the barrel, a hub (2) fitted to a hollow in the needle base so as to be separated only to a rear end side, and an injection needle (4) having a rear end part fixed to the tip part of the hub, wherein the plunger is moved to the tip part of the barrel to engage the rear end part (11a) of the hub with the tip part (13) of the plunger so that the injection needle can be pulled into the barrel through the plunger, the hub is held in the needle base by a fitting structure formed between the tip part outer peripheral surface of the hub and the tip part hollow surface of the needle base, and the tip of the hub in the fitted state of the hub being positioned at the outermost side of the needle base is positioned near or forward of the tip of the needle base in axial direction, whereby a production can be facilitated, the effect of an external force acting on

Abstract: A safety injector capable of preventing an erroneous needling by pulling the needle tube part of an injection needle into an outer tube after use, comprising a convergently formed tubular lure part and an annular projected part coaxially surrounding the lure part provided at the opening tip part of the outer tube, characterized in that an engagement projected part is formed on the tip side inner surface of the annular projected part; an injection needle for medical treatment used in the safety injector, comprising an injection needle, a needle mounting part fixed to the base part of the needle tube part of the injection needle, and a needle base covering the outside of the needle mounting part with the base side of the needle mounting part left uncovered and holding the needle mounting part by the inner cavity thereof in contact with each other so that the needle mounting part can be separated therefrom, characterized in that an engagement projection is formed on the base part peripheral edge of the needle ba