Front-loading syringe for medical injector having a flexible syringe retaining ring
First Claim
Patent Images
1. A syringe for use with an injector comprising a syringe retaining mechanism including a flexible ring, the syringe comprising:
- a body comprising a rearward end and a forward end, wherein the rearward end is adapted to attach to the injector;
a plunger sealing disposed within the body;
at least one attachment member associated with the body, the at least one attachment member cooperating with the flexible ring of the syringe retaining mechanism to releasably attach the syringe to the injector; and
at least one release member associated with the body, the at least one release member operable to cause deformation of the flexible ring to enable release of the syringe from attachment with the injector upon rotation of the syringe about its axis relative to the injector, the at least one release member being positioned axially forward of the at least one attachment member.
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0 Petitions
Accused Products
Abstract
Embodiments of an injector, injector system, syringe, syringe interface, syringe adapter, and piston/plunger assembly for an injector (of contrast medium, for example) are described. Preferably, the syringe is adapted to engage a syringe interface mechanism such that the syringe may be seated within an injector without regard to any particular orientation of the syringe about its axis with respect to the injector.
251 Citations
17 Claims
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1. A syringe for use with an injector comprising a syringe retaining mechanism including a flexible ring, the syringe comprising:
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a body comprising a rearward end and a forward end, wherein the rearward end is adapted to attach to the injector; a plunger sealing disposed within the body; at least one attachment member associated with the body, the at least one attachment member cooperating with the flexible ring of the syringe retaining mechanism to releasably attach the syringe to the injector; and at least one release member associated with the body, the at least one release member operable to cause deformation of the flexible ring to enable release of the syringe from attachment with the injector upon rotation of the syringe about its axis relative to the injector, the at least one release member being positioned axially forward of the at least one attachment member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An injector system for injecting fluid comprising:
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a syringe comprising; a body comprising a rearward end and a forward end, wherein the rearward end is adapted to attach to the injector; a plunger movably disposed within the body; at least one attachment member associated with the body, and at least one release member associated with the body, the at least one release member being positioned axially forward of the attachment member; and an injector comprising; a housing; a drive member at least partially disposed within the housing and operable to engage the plunger disposed within the syringe; and a syringe retaining mechanism associated with the housing and being operable to seat the syringe upon axial rearward motion of the syringe relative to the syringe retaining mechanism regardless of the orientation of syringe about the axis of the syringe, the syringe retaining mechanism comprising a flexible ring maintained at a fixed axial position within the syringe retaining mechanism;
the flexible ring being in a first shape adapted to engage the at least one attachment member of the syringe when the syringe is seated within the syringe retaining mechanism and the syringe is positioned about its axis at an engagement position, the flexible ring being in a second shape adapted to release the syringe when the syringe is seated within the syringe retaining mechanism and the syringe is positioned about its axis at a disengagement position, wherein the at least one release member causes the flexible ring to be in the second shape. - View Dependent Claims (14, 15, 16)
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17. An injector system for injecting fluid comprising:
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a syringe comprising; a body comprising a rearward end and a forward end; a plunger movably disposed within the body; and at least one attachment member associated with the body, the at least one attachment member comprising a flexible ring operable to releasably attach the syringe to the injector; and an injector comprising; a housing; a drive member at least partially disposed within the housing and operable to engage the plunger disposed within the syringe; and a syringe retaining mechanism associated with the housing and being operable to seat the syringe upon axially rearward motion of the syringe relative to the syringe retaining mechanism regardless of the orientation of syringe about the axis of the syringe, the syringe retaining mechanism defining an opening into which the syringe is insertable and comprising at least one abutment member to abut the flexible ring of the syringe and thereby resist forward axial movement of the syringe when the flexible ring is in a first shape, and at least one release member adapted to contact the flexible ring and force the flexible ring into a second shape to enable release of the syringe from attachment to the injector when the syringe is rotated about its axis to a disengagement position.
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Specification