Fluid material dispensing syringe
First Claim
1. A system for administering an anesthetic into a patient, the system comprising:
- a container storing an anesthetic;
a needle; and
means for delivering the anesthetic through the needle at a first predetermined rate for a first predetermined time and then at a second predetermined rate for a second predetermined time.
1 Assignment
0 Petitions
Accused Products
Abstract
A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.
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Citations
23 Claims
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1. A system for administering an anesthetic into a patient, the system comprising:
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a container storing an anesthetic;
a needle; and
means for delivering the anesthetic through the needle at a first predetermined rate for a first predetermined time and then at a second predetermined rate for a second predetermined time. - View Dependent Claims (2)
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3. A system for delivering an anesthetic into a patient, the system comprising:
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a handheld unit comprising a needle, a cartridge of anesthetic and means for flowing the anesthetic through the needle; and
a control unit to control operation of the handheld unit, the control unit comprising means for operating the means for flowing the anesthetic through the needle to deliver the anesthetic through the needle at a first predetermined rate for a first predetermined time and then at a second predetermined rate for a second predetermined time, wherein the second predetermined rate is selectable by a user. - View Dependent Claims (4)
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5. A computer program embodied on a computer readable medium and executable by a microprocessor for controlling a device to deliver a local anesthetic into a patient through a needle, the computer program comprising computer instructions for executing the steps of:
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generating a first at least one signal to operate the device to deliver the local anesthetic at a first predetermined rate for a first predetermined time period;
transmitting the first at least one signal to the device to operate the device to deliver the local anesthetic at a first predetermined rate for a first predetermined time period;
generating a second at least one signal to operate the device to deliver the local anesthetic at a second predetermined rate for a second predetermined time period; and
transmitting the second at least one signal to the device for the device to operate at the second predetermined rate for the second predetermined time immediately upon completion of the first predetermined time period. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of delivering a local anesthetic to a patient, the method comprising the steps of:
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selecting a preprogrammed injection type for delivering a local anesthetic to a patient;
delivering the local anesthetic to a patient with a motor driven syringe at a first predetermined rate for a first predetermined time period based on the selected injection type;
thendelivering the local anesthetic to a patient with the motor driven syringe at a second predetermined rate for a second predetermined time period based on the selected injection type. - View Dependent Claims (22, 23)
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Specification