Abstract: A medical connector having a substantially cylindrical shape, a first upper end for receiving a male luer, and a second lower end, and including: a disc shaped valve member arranged at the first upper end and having an uppermost surface and a lowermost surface, a slit formed at a center portion thereof, an upper groove formed in a circumferential edge portion of the uppermost surface, and a lower groove formed in a circumferential edge portion of the lowermost surface; a housing with a pedestal for supporting the disc shaped valve member; a protrusion projecting upwardly from the pedestal and being arranged in the lower groove; and an annular ring member disposed on the circumferential edge portion of the uppermost surface, and having a claw portion projecting downwardly and being arranged in the upper groove on the uppermost surface of the valve member.

Abstract: A medical connector capable of allowing, in which a stepped portion is not formed between upper surfaces of a valve and a housing, includes a disc shaped valve member which has a slit formed at a center portion thereof; a housing with a substantially cylindrical shape which sandwiches a circumferential edge portion of the valve member; and an annular ring member which is disposed on an upper circumferential edge of the valve member other than the center portion thereof, wherein the housing has a pedestal which is formed on an inner circumferential surface thereof so as to protrude inward, the valve member being placed on the pedestal, and wherein the valve member is fixed to the inside of the housing by allowing the ring member and the housing to be joined to each other by a swaging process after the valve member is placed on the pedestal in the housing.

Abstract: A liquid medicine self-administration device including a flexible reservoir, an operating member, a pushing member to move with respect to the operating member and to induce pressure deformation of the reservoir, and engaging means engages the operating member. With the operating member engaged by the engaging means, the pushing member is relatively moved to the operating member based on restoring force of a spring member to push the reservoir by the pushing member. By disengaging means moving in unison with the pushing member, the engaging means is released from an engaged state with respect to the operating member, when the pushing member has moved to a predetermined location while pushing the reservoir.

Abstract: A medical connector having a substantially cylindrical shape, a first upper end for receiving a male luer, and a second lower end, and including: a disc shaped valve member arranged at the first upper end and having an uppermost surface and a lowermost surface, a slit formed at a center portion thereof, an upper groove formed in a circumferential edge portion of the uppermost surface, and a lower groove formed in a circumferential edge portion of the lowermost surface; a housing with a pedestal for supporting the disc shaped valve member; a protrusion projecting upwardly from the pedestal and being arranged in the lower groove; and an annular ring member disposed on the circumferential edge portion of the uppermost surface, and having a claw portion projecting downwardly and being arranged in the upper groove on the uppermost surface of the valve member.

Abstract: A medical connector of improved configuration. Annular grooves are formed in both inner and outer surfaces of an outer peripheral portion of an elastic valve element to form an annular constricted section. An outer peripheral side from the constricted section is made to serve as an annular fixation section. A valve receiving seat is formed at an inner peripheral edge of an aperture portion in a housing, and an annular ring is fixed to the aperture portion to sandwich and support the annular fixation section between the valve receiving seat and the annular ring. Engaging projections formed on mutually facing surfaces of the valve receiving seat and the annular ring are engaged with the annular grooves, and either the engaging projection and/or the engaging projection is divided in a circumferential direction to have a plurality of projection-divisions.

Abstract: A medical connector of improved configuration. Annular grooves are formed in both inner and outer surfaces of an outer peripheral portion of an elastic valve element to form an annular constricted section. An outer peripheral side from the constricted section is made to serve as an annular fixation section. A valve receiving seat is formed at an inner peripheral edge of an aperture portion in a housing, and an annular ring is fixed to the aperture portion to sandwich and support the annular fixation section between the valve receiving seat and the annular ring. Engaging projections formed on mutually facing surfaces of the valve receiving seat and the annular ring are engaged with the annular grooves, and either the engaging projection and/or the engaging projection is divided in a circumferential direction to have a plurality of projection-divisions.

Abstract: A liquid medicine self-administration device including a flexible reservoir, an operating member, a pushing member to move with respect to the operating member and to induce pressure deformation of the reservoir, and engaging means engages the operating member. With the operating member engaged by the engaging means, the pushing member is relatively moved to the operating member based on restoring force of a spring member to push the reservoir by the pushing member. By disengaging means moving in unison with the pushing member, the engaging means is released from an engaged state with respect to the operating member, when the pushing member has moved to a predetermined location while pushing the reservoir.

Abstract: A medical connector capable of allowing, in which a stepped portion is not formed between upper surfaces of a valve and a housing, includes a disc shaped valve member which has a slit formed at a center portion thereof; a housing with a substantially cylindrical shape which sandwiches a circumferential edge portion of the valve member; and an annular ring member which is disposed on an upper circumferential edge of the valve member other than the center portion thereof, wherein the housing has a pedestal which is formed on an inner circumferential surface thereof so as to protrude inward, the valve member being placed on the pedestal, and wherein the valve member is fixed to the inside of the housing by allowing the ring member and the housing to be joined to each other by a swaging process after the valve member is placed on the pedestal in the housing.