Catheter device and method for delivering a dose internally during minimally-invasive surgery
First Claim
1. A dose delivery device for delivering a desired dose to an injection site within a patient'"'"'s body, comprising:
- a housing;
a carriage assembly located within the housing, the carriage assembly sized to accept a removable carpule of therapeutic and movable from a retracted position to an advanced position;
a first lumen in fluid communication with the carriage assembly;
a carpule of therapeutic positioned in the carriage assembly, the carpule of therapeutic removable from the carriage assembly, therapeutic within the carpule being releasable from the carpule into the first lumen;
a dose delivery actuator; and
a dose metering member operable from outside the housing, the dose metering member having a first position and a second position different from said first position;
wherein the dose delivery actuator has a starting position, a first stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its first position, and a second stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its second position;
wherein when the dose metering member is in its first position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its first stopped position, applying a force to the carpule to eject a first desired dose; and
wherein when the dose metering member is in its second position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its second position, applying a force to the carpule to eject a second desired dose different than the first desired dose.
1 Assignment
0 Petitions
Accused Products
Abstract
A catheter handpiece apparatus and method for delivering a desired dose with minimal potential for contamination of the injected substance and rapid, accurate delivery of the desired dose. In one embodiment, a carriage assembly affixed to an inner lumen is slidably located within a handpiece housing equipped with an outer lumen. The carriage assembly receives a dose carpule. An actuator knob cocks the carriage assembly and a spring-powered actuator mechanism. After the catheter is maneuvered to a desired injection site and a desired dose is set, depressing a first trigger causes the inner lumen tip to extend beyond the outer lumen into the injection site. Depressing a second trigger causes the actuator mechanism to push the desired dose from the dose carpule through the inner lumen into the injection site. A second embodiment provides a catheter handpiece with a carriage assembly cocking lever and an operator-powered dose delivery mechanism.
-
Citations
19 Claims
-
1. A dose delivery device for delivering a desired dose to an injection site within a patient'"'"'s body, comprising:
-
a housing; a carriage assembly located within the housing, the carriage assembly sized to accept a removable carpule of therapeutic and movable from a retracted position to an advanced position; a first lumen in fluid communication with the carriage assembly; a carpule of therapeutic positioned in the carriage assembly, the carpule of therapeutic removable from the carriage assembly, therapeutic within the carpule being releasable from the carpule into the first lumen; a dose delivery actuator; and a dose metering member operable from outside the housing, the dose metering member having a first position and a second position different from said first position; wherein the dose delivery actuator has a starting position, a first stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its first position, and a second stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its second position; wherein when the dose metering member is in its first position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its first stopped position, applying a force to the carpule to eject a first desired dose; and wherein when the dose metering member is in its second position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its second position, applying a force to the carpule to eject a second desired dose different than the first desired dose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A dose delivery device for delivering a desired dose to an injection site within a patient'"'"'s body, comprising:
-
a housing; a first lumen; a carpule of therapeutic positioned in the housing, therapeutic within the carpule being releasable from the carpule into the first lumen; a dose delivery actuator comprising a rotatable member and a longitudinally movable member in threaded engagement with the rotatable member; at least one cocking member for placing the dose delivery actuator into a cocked condition; a dose metering member operable from outside the housing; and a dose release trigger; wherein the rotatable member has a starting position when the dose delivery actuator is in its cocked condition and a first stopped position in which said rotatable member is rotated from its starting position, and the longitudinally movable member has a starting position when the dose delivery actuator is in its cocked condition and a first stopped position in which said longitudinally movable member is longitudinally translated from its starting position; wherein the dose delivery actuator when released from its cocked condition by the dose release trigger is biased to cause the rotatable member to rotate from its starting position, which in turn causes the longitudinally movable member to move longitudinally from its starting position to apply a force to the carpule to eject a desired dose into the first lumen, and wherein dose delivery actuator movement is halted by the dose metering member when the desired dose has been delivered. - View Dependent Claims (12, 13, 14)
-
-
15. A dose delivery device for delivering a desired dose to an injection site within a patient'"'"'s body, comprising:
-
a housing; a first lumen; and a dose delivery actuator having a starting position and a first stopped position, the dose delivery actuator comprising a rotatable member and a longitudinally movable member in engagement with the rotatable member; wherein the rotatable member has a starting position when the dose delivery actuator is in its starting position and a first stopped position in which said rotatable member is rotated from its starting position, and the longitudinally movable member has a starting position when the dose delivery actuator is in its starting position and a first stopped position in which said longitudinally movable member is longitudinally translated from its starting position; wherein the dose delivery actuator when moved from is starting position to its first stopped position causes the rotatable member to rotate from its starting position to its first stopped position, which in turn causes the longitudinally movable member to move longitudinally from its starting position to its first stopped position to eject a desired dose of therapeutic agent from the first lumen. - View Dependent Claims (16, 17, 18)
-
-
19. A dose delivery device for delivering a desired dose to an injection site within a patient'"'"'s body, comprising:
-
a housing; a first lumen; a dose delivery actuator; and a dose metering member operable from outside the housing, the dose metering member having a first position and a second position different from said first position; wherein the dose delivery actuator has a starting position, a first stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its first position, and a second stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its second position; wherein when the dose metering member is in its first position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its first stopped position, ejecting a first desired dose; and wherein when the dose metering member is in its second position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its second stopped position, ejecting a second desired dose different than the first desired dose.
-
Specification