Syringe interfaces and adapters for use with medical injectors
First Claim
1. A syringe interface for connecting a syringe comprising a flange with a forward facing abutment surface and a plunger movably disposed therein to an injector comprising a drive member, the syringe interface comprising:
- a U-shaped top opening into which the syringe can be loaded;
a groove extending within the U-shaped top opening;
a first retaining member positioned within the groove at one side of the U-shaped opening; and
a second retaining member positioned within the groove at a second side of the U-shaped opening, the first retaining member and the second retaining member abutting the forward facing abutment surface of the syringe flange generally symmetrically,wherein each of the first retaining member and the second retaining member comprises a radially inward extending member disposed within the groove and that moves radially outward when contacted by the syringe during loading of the syringe into the syringe interface and returns to a radially inward position once the syringe is loaded within the syringe interface.
3 Assignments
0 Petitions
Accused Products
Abstract
A syringe interface includes a top opening into which a syringe can be loaded, a first retaining member positioned on one side of the opening and a second retaining member positioned on a second side of the opening. The first retaining member and the second retaining member abut a forward facing abutment surface of a syringe flange on the syringe generally symmetrically. The syringe interface further includes a cradle, at least one engagement member to abut a forward facing abutment surface of a syringe flange, and a carriage slidably disposed within the cradle. The carriage includes a connector to form a releasable connection with a plunger or plunger extension of the syringe and a drive member of the injector. The connector includes a plurality of flexing capture members that flex radially outward to connect to a flange on the rear of the plunger or plunger extension of the syringe when the carriage is moved forward within the syringe interface. The syringe interface may further include a connector on a rear portion thereof to connect to the injector.
67 Citations
25 Claims
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1. A syringe interface for connecting a syringe comprising a flange with a forward facing abutment surface and a plunger movably disposed therein to an injector comprising a drive member, the syringe interface comprising:
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a U-shaped top opening into which the syringe can be loaded; a groove extending within the U-shaped top opening; a first retaining member positioned within the groove at one side of the U-shaped opening; and a second retaining member positioned within the groove at a second side of the U-shaped opening, the first retaining member and the second retaining member abutting the forward facing abutment surface of the syringe flange generally symmetrically, wherein each of the first retaining member and the second retaining member comprises a radially inward extending member disposed within the groove and that moves radially outward when contacted by the syringe during loading of the syringe into the syringe interface and returns to a radially inward position once the syringe is loaded within the syringe interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A syringe interface for connecting a syringe comprising a flange with a forward facing abutment surface and a plunger movably disposed therein to an injector comprising a drive member, the syringe interface comprising:
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a cradle member; at least one engagement member adapted to abut the forward facing abutment surface of the syringe flange; and a carriage slidably disposed within the cradle, the carriage comprising a plunger connector to form a releasable connection with the syringe plunger and the drive member of the injector, the plunger connector comprising a plurality of flexing capture members extending in the axial direction, wherein the plurality of flexing capture members flex radially outward to connect to a flange on the rear of the syringe plunger when the carriage is moved forward within the syringe interface, wherein the flexible capture members each terminate with an inwardly angled surface. - View Dependent Claims (14, 15)
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16. A syringe adapter for use with a syringe, the syringe including a radially extending flange with a forward facing abutment surface, the adapter including a U-shaped top opening into which the syringe can be loaded,
a groove extending within the U-shaped top opening; a first retaining member positioned within the groove one side of the U-shaped opening and a second retaining member positioned within the groove a second side of the U-shaped opening, the first retaining member and the second retaining member abutting the forward facing abutment surface of the syringe flange generally symmetrically, wherein at least one of the first retaining member and the second retaining member includes a flexible, radially inward extending member disposed within the groove and that flexes radially outward when contacted by the syringe during loading of the syringe into the adapter and returns to a radially inward position once the syringe is loaded within the adapter. - View Dependent Claims (17, 18, 19, 20, 21)
- 22. An injector system comprising a powered injector, the powered injector including at least a first drive member for pressurizing a fluid within a first syringe, a cradle extending forward of a first opening in the injector through which the drive member communicates with the interior of the first syringe, at least a first syringe adapter retention mechanism on a forward end of the cradle, and a first adapter for attaching the first syringe to the injector, the first adapter including a releasable attachment mechanism for releasably attaching the first adapter to the first adapter retention mechanism, the first adapter further including a top opening into which the first syringe can be loaded, a first retaining member positioned on one side of the opening and a second retaining member positioned on a second side of the opening, the first retaining member and the second retaining member abutting the forward facing abutment surface generally symmetrically, each of the first retaining member and the second retaining member includes a flexible, radially inward extending member that flexes radially outward when contacted by the first syringe during loading of the first syringe into the adapter and returns to a radially inward position once the first syringe is loaded within the adapter.
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25. An injector system comprising a powered injector including at least a first drive member for pressurizing a fluid within a first syringe and a second drive member for pressurizing fluid within a second syringe, a cradle extending forward of a first opening in the injector through which the first drive member communicates with the interior of the first syringe and a second opening in the injector through which the second drive member communicates with the interior of the second syringe, a first syringe adapter retention mechanism on a forward end of the cradle, a second syringe adapter retention mechanism on a forward end of the cradle, the injector system further including a first adapter for attaching the first syringe to the injector, and a second adapter for attaching the second syringe to the injector, at least the first adapter including a releasable attachment mechanism for releasably attaching the first adapter to the first adapter retention mechanism, the first adapter including a top opening into which the syringe can be loaded, a first retaining member being positioned on one side of the opening and a second retaining member being positioned on a second side of the opening, the first retaining member and the second retaining member abutting the forward facing abutment surface on the first syringe generally symmetrically, each of the first retaining member and the second retaining member includes a flexible, radially inward extending member that flexes radially outward when contacted by the first syringe during loading of the first syringe into the adapter and returns to a radially inward position once the first syringe is loaded within the adapter.
Specification