INJECTOR
First Claim
1. A medical fluid injector comprising:
- a drive ram having a longitudinal axis;
a motor to move the drive ram along the longitudinal axis;
a syringe mount comprising first and second members that are pivotable toward and away from one another, the first member being pivotable about a first pivot axis, and the second member being pivotable about a second pivot axis different from the first pivot axis, wherein a line connecting the first and second pivot axes does not intersect the longitudinal axis of the drive ram, wherein the first and second members of the syringe mount, when in a first position, are engaged with a rearward end of a syringe to substantially immobilize the syringe relative to the motor, and wherein the first and second members of the syringe mount, when in a second position, are disengaged from the rearward end of the syringe so that the syringe may be removed from the syringe mount; and
a sensor for determining whether the first and second members of the syringe mount are in the first position or the second position.
4 Assignments
0 Petitions
Accused Products
Abstract
An injector automatic limiting of the operating pressure of the injector as determined by the selection of a flow rate; a syringe cradle having a warming capability; a purge/retract trigger for control of the injection procedure having intuitive direction (i.e., forward for injecting, reverse for filing), non-contact control transmission through the housing of an injector for an improved seal integrity, a speed lock, and/or the ability to change the concentration and/or flow rate of media or other fluid during an injection procedure; a switch to determine when the drive ram is in a “home” position; a “soft” on/off power switch separate from the injector; and a structure to prevent rotation of the drive ram about its axis of symmetry. Additionally, the injector system includes software for the control of various components.
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Citations
32 Claims
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1. A medical fluid injector comprising:
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a drive ram having a longitudinal axis; a motor to move the drive ram along the longitudinal axis; a syringe mount comprising first and second members that are pivotable toward and away from one another, the first member being pivotable about a first pivot axis, and the second member being pivotable about a second pivot axis different from the first pivot axis, wherein a line connecting the first and second pivot axes does not intersect the longitudinal axis of the drive ram, wherein the first and second members of the syringe mount, when in a first position, are engaged with a rearward end of a syringe to substantially immobilize the syringe relative to the motor, and wherein the first and second members of the syringe mount, when in a second position, are disengaged from the rearward end of the syringe so that the syringe may be removed from the syringe mount; and a sensor for determining whether the first and second members of the syringe mount are in the first position or the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A contrast media injector comprising:
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an injector housing; a drive ram bi-directionally movable along a longitudinal axis thereof; a motor located within the injector housing and drivingly coupled to the drive ram; a syringe cradle integral with the injector housing and designed to support a syringe at a fixed position relative to the motor; and a syringe mount engageable with a body of a syringe so as to allow the drive ram to cause movement of a plunger of the syringe within and relative to the body of the syringe, wherein; the syringe mount includes first and second members; the first member of the syringe mount is pivotable relative to the syringe cradle about a first pivot axis, and the second member of the syringe mount is pivotable relative to the syringe cradle about a second pivot axis different from the first pivot axis; each of the first and second members of the syringe mount comprises an internal groove designed to accommodate an outwardly extending flange of a syringe; the first and second members of the syringe mount are pivotable toward and away from each other such that the first and second members may be disposed in an open position and a closed position, and such that, in use, a syringe may be removed from the syringe mount by lifting the syringe away from the syringe mount and the syringe cradle in a direction substantially perpendicular to the longitudinal axis of the drive ram when the first and second members of the syringe mount are in the open position; and a sensor for determining whether at least one of the first and second members of the syringe mount are in the open position or the closed position. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification