Handpiece For Fluid Administration Apparatus
First Claim
1. A handpiece assembly adapted for use with a medication infusion system that applies pressure, in a range of 200 to 650 psi, to the handpiece assembly for delivering medication to a body, the handpiece assembly comprising:
- a cartridge holder being configured for disposal of a medication cartridge, the cartridge holder being connected with the medication infusion system;
tubing having a first end and a second end, the first end being sealed with the cartridge holder such that the cartridge holder facilitates communication between the tubing and the medication cartridge; and
a handpiece being sealed with a needle and the second end of the tubing such that the tubing and the needle are in communication;
wherein one of the cartridge holder, the tubing, the needle or the handpiece is configured for a selective structural failure at a predetermined pressure threshold applied to the handpiece assembly from the medication infusion system.
1 Assignment
0 Petitions
Accused Products
Abstract
A handpiece assembly is provided that is adapted for use with a medication infusion system that applies pressure to the handpiece assembly for delivering medication to a body. The handpiece assembly includes a cartridge holder that is configured for disposal of a medication cartridge. A tubing is provided having a first end, which is sealed with the cartridge holder such that the cartridge holder facilitates communication between the tubing and the medication cartridge. A handpiece is sealed with a needle and the second end of the tubing so that the tubing and the needle are in communication. One of the cartridge holder, the tubing, the needle or the handpiece is configured for a selective structural failure at a predetermined pressure threshold applied to the handpiece assembly from the medication infusion system. The cartridge holder may be designed to facilitate aspiration.
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Citations
21 Claims
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1. A handpiece assembly adapted for use with a medication infusion system that applies pressure, in a range of 200 to 650 psi, to the handpiece assembly for delivering medication to a body, the handpiece assembly comprising:
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a cartridge holder being configured for disposal of a medication cartridge, the cartridge holder being connected with the medication infusion system; tubing having a first end and a second end, the first end being sealed with the cartridge holder such that the cartridge holder facilitates communication between the tubing and the medication cartridge; and a handpiece being sealed with a needle and the second end of the tubing such that the tubing and the needle are in communication; wherein one of the cartridge holder, the tubing, the needle or the handpiece is configured for a selective structural failure at a predetermined pressure threshold applied to the handpiece assembly from the medication infusion system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
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16. A handpiece assembly adapted for use with a medication infusion system that applies pressure, in a range of 200 to 650 psi, to the handpiece assembly for delivering medication to a body, the handpiece assembly comprising:
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a cartridge holder being configured for disposal of a medication cartridge, the cartridge holder being connected with the medication infusion system; microbore tubing having a first end and a second end, the first end being fixedly sealed with the cartridge holder such that the cartridge holder facilitates communication between the tubing and the medication cartridge; and a handpiece being fixedly sealed with a needle assembly and the second end of the tubing such that the tubing and the needle assembly are in communication, wherein the cartridge holder is configured for a selective structural failure, prior to the tubing, the handpiece and the needle assembly, at a predetermined pressure threshold, in the range of 450 to 550 psi, as applied to the handpiece assembly from the medication infusion system. - View Dependent Claims (17, 18, 19)
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20. A medication infusion system comprising:
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a drive unit having a receptacle and being configured to apply pressure in a range of 200 psi to 650 psi, to a handpiece assembly for delivering medication to a body; a cartridge holder being configured for disposal of a medication cartridge, the cartridge holder being connected with the receptacle of the medication infusion system; microbore tubing having a first end and a second end, the first end being fixedly sealed with the cartridge holder such that the cartridge holder facilitates communication between the tubing and the medication cartridge; a handpiece being fixedly sealed with a needle assembly and the second end of the tubing such that the tubing and the needle assembly are in communication, wherein the cartridge holder is configured for a selective structural failure, prior to the tubing, the handpiece and the needle assembly, at a predetermined pressure threshold, in the range of 450 to 550 psi, as applied to the handpiece assembly from the medication infusion system; a sensor coupled to the drive unit for sensing an internal parameter indicative of the pressure being applied by the drive unit and internal resistances within the medication infusion system; and a controller coupled to the sensor and the drive unit, the controller including a calculator for calculating an exit pressure of the medication at the needle assembly, the controller generating commands to insure the exit pressure does not exceed a predetermined level.
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Specification