Fluid driven medical injectors
First Claim
Patent Images
1. A medical fluid injector for use in an MRI procedure, comprising:
- a multimedia tube configured to pass each of a working fluid and a light control signal to a common destination;
a light switch coupled to a valve, wherein the light switch is responsive to the light control signal to control the valve, and the valve is configured to control flow of the working fluid; and
a substantially non-ferrous and substantially non-magnetic fluid drive coupled to the multimedia tube, wherein the fluid drive is configured to not interfere with magnetic resonance imaging.
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Accused Products
Abstract
Some injectors of the invention may include a fluid drive responsive to pressure of a working fluid (e.g., liquid, pneumatic, or both) to impart a sequence of forces to drive a delivery device (e.g., a syringe) to deliver a medical fluid (e.g., a contrast agent, a radiopharmaceutical, a drug, or a combination thereof). Some injectors may include a multimedia tube configured to pass a working fluid (e.g., air) and a light signal (e.g., infrared). Some injectors may include a peristaltic drive responsive to pressure of a working fluid.
22 Citations
18 Claims
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1. A medical fluid injector for use in an MRI procedure, comprising:
- a multimedia tube configured to pass each of a working fluid and a light control signal to a common destination;
a light switch coupled to a valve, wherein the light switch is responsive to the light control signal to control the valve, and the valve is configured to control flow of the working fluid; and
a substantially non-ferrous and substantially non-magnetic fluid drive coupled to the multimedia tube, wherein the fluid drive is configured to not interfere with magnetic resonance imaging. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a multimedia tube configured to pass each of a working fluid and a light control signal to a common destination;
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13. A medical fluid injector for use in an MRI procedure, comprising:
- a multimedia port;
a multimedia tube connected to the multimedia port, wherein both a working fluid and an optical control signal are directed through the multimedia tube to the multimedia port;
a valve;
a first conduit extending from the multimedia port to the valve, wherein the working fluid is directed from the multimedia port, through the first conduit, and to the valve;
an optical switch operatively connected with the valve;
a second conduit extending from the multimedia port to the optical switch, wherein the optical control signal is transmitted from the multimedia port, through the second conduit, and to the optical switch, wherein the optical switch is responsive to the optical control signal to control the valve; and
a substantially non-ferrous and substantially non-magnetic fluid drive, wherein the fluid drive is configured to not interfere with magnetic resonance imaging, and wherein the valve controls flow of the working fluid to the fluid drive. - View Dependent Claims (14, 15, 16, 17, 18)
- a multimedia port;
Specification