Method and apparatus to decrease the risk of intraneuronal injection during administration of nerve block anesthesia
First Claim
1. A system for administration of a nerve block in a patient with reduced risk of intraneuronal injection, said system comprising(1) an anesthetic delivery device having an anesthetic storage compartment and an output end;
- (2) a nerve block needle having an input end and an output end wherein the output end can be inserted into the patient for delivery of anesthetic to the patent in the vicinity of a nerve to be blocked;
(3) a tube having an anesthetic passageway connecting the output end of the anesthetic delivery device and the input end of the nerve block needle, whereby anesthetic from the anesthetic storage compartment can be delivered via the output end of the nerve block needle to the patient; and
(4) a pressure sensing device located along, and in pressure sensing communication with, the anesthetic passageway, the pressure sensing device capable of measuring pressures up to about 25 psi, whereby the pressure of the anesthetic can be continuously monitored and controlled during anesthetic delivery to the patient so as to reduce the risk of intraneuronal injection.
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Accused Products
Abstract
An objective and reproducible system for, and method of, monitoring and/or controlling the pressure during nerve blockage injection, especially by less experienced personnel, is provided in order to decrease the possibility of intraneuronal injection. More specifically, the present invention employs a pressure sensing and/or limiting device located between an injection device (typically a syringe) and a nerve block needle whereby injection pressure during a nerve block injection can be easily and objectively monitored, thereby allowing the operator to monitor the injection pressure and/or injection speed during a nerve blockage injection procedure and to take appropriate corrective actions if abnormal pressure conditions are observed.
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Citations
12 Claims
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1. A system for administration of a nerve block in a patient with reduced risk of intraneuronal injection, said system comprising
(1) an anesthetic delivery device having an anesthetic storage compartment and an output end; -
(2) a nerve block needle having an input end and an output end wherein the output end can be inserted into the patient for delivery of anesthetic to the patent in the vicinity of a nerve to be blocked;
(3) a tube having an anesthetic passageway connecting the output end of the anesthetic delivery device and the input end of the nerve block needle, whereby anesthetic from the anesthetic storage compartment can be delivered via the output end of the nerve block needle to the patient; and
(4) a pressure sensing device located along, and in pressure sensing communication with, the anesthetic passageway, the pressure sensing device capable of measuring pressures up to about 25 psi, whereby the pressure of the anesthetic can be continuously monitored and controlled during anesthetic delivery to the patient so as to reduce the risk of intraneuronal injection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for administration of a nerve block in a patient with reduced risk of intraneuronal injection, said system comprising
(1) a manually operated anesthetic delivery device having an anesthetic storage compartment and an output end; -
(2) a nerve block needle having an input end and an output end wherein the output end can be inserted into the patient for manual delivery of anesthetic to the patent in the vicinity of a nerve to be blocked;
(3) a tube having an anesthetic passageway connecting the output end of the anesthetic delivery device and the input end of the nerve block needle, whereby anesthetic from the anesthetic storage compartment can be delivered via the output end of the nerve block needle to the patient; and
(4) a pressure sensing device connected to and in pressure sensing communication with, the anesthetic passageway, the pressure sensing device capable of measuring pressures up to about 25 psi, whereby the pressure of the anesthetic can be continuously monitored and controlled during anesthetic delivery to the patient so as to reduce the risk of intraneuronal injection. - View Dependent Claims (10, 11, 12)
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Specification