Syringe Infusion Pump
First Claim
1. A syringe infusion pump for use with a plurality of different size syringes, each different size syringe having a different syringe barrel diameter, and each of said plurality of syringes including a plunger having a plunger axis received in the barrel along a barrel axis, said pump comprising:
- a drive head including a force sensor positioned to sense force applied to the plunger by the drive head, the force sensor having a center; and
a syringe barrel holder configured to hold each of said syringe barrels of different diameters in a fixed position with the barrel axis aligned with said force sensor center for each different diameter syringe barrel.
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Accused Products
Abstract
One embodiment of the present patent application is a syringe infusion pump that includes a syringe, a syringe barrel holder, and a force sensor. The syringe includes a barrel and a plunger. The plunger has a plunger axis and the barrel has a barrel axis and a barrel diameter. The syringe is one of a plurality of syringes, each having a different barrel diameter. The force sensor is positioned for detecting a force along the barrel axis. The syringe holder provides the barrel axis automatically aligned with the force sensor for each syringe of the plurality of syringes.
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Citations
28 Claims
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1. A syringe infusion pump for use with a plurality of different size syringes, each different size syringe having a different syringe barrel diameter, and each of said plurality of syringes including a plunger having a plunger axis received in the barrel along a barrel axis, said pump comprising:
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a drive head including a force sensor positioned to sense force applied to the plunger by the drive head, the force sensor having a center; and a syringe barrel holder configured to hold each of said syringe barrels of different diameters in a fixed position with the barrel axis aligned with said force sensor center for each different diameter syringe barrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A syringe infusion pump for use with a plurality of different size syringes, each different size syringe having a different syringe barrel diameter, and each of said plurality of syringes including a plunger having a plunger axis received in the syringe barrel along a barrel axis, said pump comprising:
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a drive head configured to apply force to the plunger to operate the syringe, said drive head including a force sensor positioned to sense force applied to the plunger by the drive head, the force sensor having a center; a syringe barrel holder comprising a barrel clamp including a first clamp element and a second clamp element, said first and second clamp elements being movable to engage and hold syringe barrels of different diameters in a fixed position with the barrel axis automatically aligned with said force sensor center independent of the diameter of the barrel for each different diameter syringe barrel; and a syringe plunger holder mounted on said drive head comprising front and rear plunger clamps cooperating to automatically position the plunger with the plunger axis in alignment with the force sensor center, and with the plunger axis in alignment with the barrel axis independent of the diameter of the barrel of a syringe held in the barrel holder for each different diameter syringe barrel. - View Dependent Claims (22)
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23. A syringe infusion pump for use with a plurality of different size syringes, each different size syringe having a different syringe barrel diameter, and each of said plurality of syringes including a plunger with a plunger flange having a plunger axis received in the barrel along a barrel axis, said pump comprising:
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a drive head positioned and configured to push the plunger into the syringe barrel for each different size syringe, said drive head including a force sensor configured to sense force applied to the plunger by the drive head, said force sensor having a center; a syringe plunger holder configured and dimensioned to engage the plunger of each different size syringe with the plunger axis aligned with said force sensor center for each said different size syringe; and a syringe barrel holder configured to hold each of the syringe barrels of different diameters in a fixed position when the drive head pushes the plunger into the syringe barrel. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification