×

Dental anesthetic and delivery injection unit with automated rate control

  • US 6,652,482 B2
  • Filed: 08/16/2001
  • Issued: 11/25/2003
  • Est. Priority Date: 08/17/2000
  • Status: Active Grant
First Claim
Patent Images

1. An injection device comprising:

  • a delivery member adapted to deliver a therapeutic liquid at one of a first rate and a second rate;

    a microprocessor adapted to generate control signals to said delivery member; and

    a control member operable by an operator to select one of said first rate and second rates, wherein said microprocessor cooperates with said control member to maintain said delivery member at said selected rate after said control member is released by the operator;

    wherein said control member has a plurality of positions including a selection position defining a selected rate for said delivery member and a neutral position, wherein said control member is biased to said neutral position when released by the operator.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×