Multi-dose syringe driver
First Claim
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1. A syringe driver device, adapted to engage and impart forces to a syringe to dispense fluid from within the syringe, comprising:
- a first member having proximal and distal ends;
a selectively positionable second member engageable with the first member adjacent to the proximal end of the first member, the second member having proximal and distal ends;
a syringe, removably mountable within the first member between the distal end of the first member and the distal end of the second member, the syringe including a fluid containing barrel with a flange at a proximal end thereof, an outlet tip at a distal end of the barrel and a moveable plunger, including a disk portion at a proximal end thereof and a tip portion at a distal end thereof, slidably disposed within the barrel for movement between withdrawn and fully inserted positions;
a force applying element, associated with the distal end of the second member, the force applying element being adapted to engage and apply force to the plunger disk; and
a spring element disposed substantially internally within the second member and applying a biasing force to the force applying element.
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Abstract
A syringe driver device is able to effect the controlled, parenteral infusion of a medical fluid using an available disposable syringe. The driver device includes a frame heaving a movable carriage, which houses a force applying element, mounted thereto. A disposable syringe mounts upon the frame and a lengthy microbore tubing attaches to the outlet tip of the syringe. As a force is applied to the syringe plunger, fluid is expelled from the syringe, but its flow rate is dependent upon the diameter of the microbore tubing. The driver device enables the delivery of multiple, sequential doses of fluid.
79 Citations
17 Claims
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1. A syringe driver device, adapted to engage and impart forces to a syringe to dispense fluid from within the syringe, comprising:
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a first member having proximal and distal ends; a selectively positionable second member engageable with the first member adjacent to the proximal end of the first member, the second member having proximal and distal ends; a syringe, removably mountable within the first member between the distal end of the first member and the distal end of the second member, the syringe including a fluid containing barrel with a flange at a proximal end thereof, an outlet tip at a distal end of the barrel and a moveable plunger, including a disk portion at a proximal end thereof and a tip portion at a distal end thereof, slidably disposed within the barrel for movement between withdrawn and fully inserted positions; a force applying element, associated with the distal end of the second member, the force applying element being adapted to engage and apply force to the plunger disk; and a spring element disposed substantially internally within the second member and applying a biasing force to the force applying element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A syringe driver device, adapted to engage and impart forces to a syringe to dispense fluid from within the syringe, comprising:
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a first member having proximal and distal ends; a selectively positionable second member, the second member being engageable with the first member and having proximal and distal ends with an aperture formed in the distal end thereof; a force applying element, disposed within the second member, the force applying element being distally biased; and a spring element disposed internally within the second member and applying a biasing force to the force applying element. - View Dependent Claims (15)
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16. A syringe driver system, adapted to engage and impart forces to a syringe to dispense fluid from within the syringe, comprising:
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a first member having proximal and distal ends; a second member, having proximal and distal ends and being engageable with the first member; a syringe removably mountable within the first member between the distal end of the first member and the distal end of the second member, the syringe including a fluid containing barrel with a flange at a proximal end thereof, an outlet tip at a distal end of the barrel and a plunger slidably disposed within the barrel for movement between withdrawn and fully inserted positions; a force applying element associated with the distal end of the second member, the force applying element being distally biased within the second member and being adapted to selectively apply force to the plunger disk; a spring element disposed substantially internally within the second member and applying a biasing force to the force applying element; a syringe engaging mechanism effective to engage and maintain the syringe within the first member; and at least one microbore tubing assembly, the at least one microbore tubing assembly having a proximal and a distal end with a fluid passageway extending therebetween, the proximal end including an adapter mechanism to facilitate detachable coupling to the end of the syringe. - View Dependent Claims (17)
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Specification