Syringe holder and pharmaceutical liquid administration set
AssigneeTerumo Kabushiki Kaisha
InventorsJunichi Ogawa, Yoichiro Iwase, Kazunori Koiwai
Life of this patent
Estimating the term…
Abstract
A syringe holder includes: a barrel body that holds a syringe; a holder opening; deformation promoting portions; and radial movement-restricting portions. The radial movement-restricting portions are provided close to the deformation promoting portions. Being brought into contact with first portions, the radial movement-restricting portions restrict the syringe from moving in a radial direction with respect to the barrel body.
Claims20
A syringe holder configured to hold a syringe that comprises a cylindrical body section configured to be filled with a pharmaceutical liquid, a discharge portion formed at a distal end portion of the body section, a flange that is formed at a proximal end portion of the body section and includes a first portion disposed at a position a first distance apart from a central axis of the body section, and a second portion disposed at a position a second distance apart from the central axis, the second distance being smaller than the first distance, and a screw portion coupled to the discharge portion and configured to be screwed to an administration component to administer the pharmaceutical liquid to a biological body, the syringe holder comprising:
- a barrel body having a cylindrical shape and being configured to cover at least an outer peripheral surface of the flange of the syringe;
- a holder opening defined by the barrel body, the holder opening being configured for inserting the syringe;
- a fixing claw configured to fix a surface of the flange on a side proximate the holder opening;
- a fixing projection configured to fix a surface of the flange on a side opposite to the holder opening;
- a through hole that penetrates a side wall of the barrel body and is located proximate an end portion of the fixing claw on a side opposite to the holder opening, the through hole being configured to promote the fixing claw to deform outward in a radial direction of the barrel body when the first portion of the syringe inserted from the holder opening climbs over the fixing claw;
- a rotation restricting portion configured to come into contact with the second portion so as to restrict the syringe from rotating in a circumferential direction with respect to the barrel body;
- and
- projection that closes a part of the through hole, the projection being configured to come into contact with the first portion so as to restrict the syringe from moving in the radial direction with respect to the barrel body,
- wherein the projection connects a distal end of the through hole and a proximal end of the through hole such that a distal end portion of the projection is thinner than a proximal end portion of the projection that is configured to contact the long diameter portion.
A pharmaceutical liquid administration set comprising:
- a syringe that comprises:
- a cylindrical body section configured to be filled with a pharmaceutical liquid,
- a discharge portion formed at a distal end portion of the body section,
- a flange that is formed at a proximal end portion of the body section and includes a first portion extending a first distance from a central axis of the body section, and a second portion extending a second distance from the central axis, the second distance being smaller than the first distance, and
- a screw portion coupled to the discharge portion and configured to be screwed to an administration component to administer the pharmaceutical liquid to a biological body;
- and
- a syringe holder comprising:
- a barrel body having a cylindrical shape and being configured to cover at least an outer peripheral surface of the flange of the syringe,
- a holder opening defined by the barrel body, the holder opening being configured for inserting the syringe,
- a fixing claw configured to fix a surface of the flange on a side proximate the holder opening,
- a fixing projection configured to fix a surface of the flange on a side opposite to the holder opening,
- a through hole that penetrates a side wall of the barrel body and is located proximate an end portion of the fixing claw on a side opposite to the holder opening, the through hole being configure to promote the fixing claw to deform outward in a radial direction of the barrel body when the first portion of the syringe inserted from the holder opening climbs over the fixing claw,
- a rotation restricting portion configured to come into contact with the second portion so as to restrict the syringe from rotating in a circumferential direction with respect to the barrel body, and
- a through hole, the projection being configured to come into contact with the first portion so as to restrict the syringe from moving in the radial direction with respect to the barrel body,
- wherein the projection extends in a direction opposite to the holder opening from the end portion of the fixing claw in the side opposite to the holder opening, and
- wherein the projection extends part way in an axial direction of the through hole, the projection having a free end portion on the side opposite to the holder opening.
A syringe holder configured to hold a syringe that comprises a cylindrical body section configured to be filled with a pharmaceutical liquid, a discharge portion formed at a distal end portion of the body section, a flange that is formed at a proximal end portion of the body section and includes a first portion disposed at a position a first distance apart from a central axis of the body section, and a second portion disposed at a position a second distance apart from the central axis, the second distance being smaller than the first distance, and a screw portion coupled to the discharge portion and configured to be screwed to an administration component to administer the pharmaceutical liquid to a biological body, the syringe holder comprising:
- a barrel body having a cylindrical shape and being configured to cover at least an outer peripheral surface of the flange of the syringe;
- a holder opening defined by the barrel body, the holder opening being configured for inserting the syringe;
- a fixing claw configured to fix a surface of the flange on a side proximate the holder opening;
- a fixing projection configured to fix a surface of the flange on a side opposite to the holder opening;
- a through hole that penetrates a side wall of the barrel body and is located proximate an end portion of the fixing claw on a side opposite to the holder opening, the through hole being configured to promote the fixing claw to deform outward in a radial direction of the barrel body when the first portion of the syringe inserted from the holder opening climbs over the fixing claw;
- a rotation restricting portion configured to come into contact with the second portion so as to restrict the syringe from rotating in a circumferential direction with respect to the barrel body;
- and
- a projection that closes a part of the through hole, the projection being configured to come into contact with the first portion so as to restrict the syringe from moving in the radial direction with respect to the barrel body,
- wherein the projection extends in a direction opposite to the holder opening from the end portion of the fixing claw in the side opposite to the holder opening, and
- wherein the projection extends part way in an axial direction of the through hole, the projection having a free end portion on the side opposite to the holder opening.
Dependencies are inferred from the claim text.