Surgical/medical irrigating handpiece with variable speed pump, integrated suction and battery pack
DC CAFCFirst Claim
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1. A medical irrigator comprising:
- a housing shaped to be hand held and having a front end;
an inlet tube extending to said housing;
a pulse pump capable of operating at a variable rate disposed in said housing and having an outlet conduit that opens to the housing front end, said pump configured to receive fluid from said inlet tube and discharging the fluid through said outlet conduit;
a single electric motor disposed in said housing and connected to said pump for actuating said pump, said motor operable at variable speeds to control the pumping rate of said pump;
a control assembly disposed in said housing to regulate the speed of said motor;
a suction tube disposed in said housing that has an open end adjacent the front end of said housing that extends away from the front end;
a battery pack separate from said housing; and
a flexible conductor assembly extending from said battery pack to said housing for supplying energy stored in said battery pack to said motor.
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Abstract
A medical/surgical irrigating handpiece with both a discharge line through which fluid is applied to the site and a suction line through which the discharge fluid is drawn away. The handpiece has a variable speed pulse pump. A single, variable-speed motor actuates the pump to regulate the pumping rate. Power to actuate the motor comes from a battery pack that remote to the handpiece. A control mechanism attached to the handpiece regulates the energization signal applied to the motor so as to regulate motor speed.
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Citations
46 Claims
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1. A medical irrigator comprising:
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a housing shaped to be hand held and having a front end; an inlet tube extending to said housing; a pulse pump capable of operating at a variable rate disposed in said housing and having an outlet conduit that opens to the housing front end, said pump configured to receive fluid from said inlet tube and discharging the fluid through said outlet conduit; a single electric motor disposed in said housing and connected to said pump for actuating said pump, said motor operable at variable speeds to control the pumping rate of said pump; a control assembly disposed in said housing to regulate the speed of said motor; a suction tube disposed in said housing that has an open end adjacent the front end of said housing that extends away from the front end; a battery pack separate from said housing; and a flexible conductor assembly extending from said battery pack to said housing for supplying energy stored in said battery pack to said motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical irrigator having:
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a housing shaped to be hand held, said housing having a front face shaped to receive a medical/surgical tip assembly; a discharge conduit disposed in said housing that opens into the front face of said housing and a suction tube that extends from the housing front face, both said discharge conduit and said suction tube being configured to be connected to separate conduits integral with the tip assembly; an inlet line connected to said housing; a pump disposed in said housing connected to receive fluid from said inlet line and pump fluid out through said discharge conduit, said pump being a pulse pump that operates at a variable rate; a single, variable speed electric motor in said housing that is connected to said pump that actuates said pump so as to regulate the pumping rate of said pump; a conductor assembly including a plurality of flexible conductors, said conductor assembly having a distal end disposed in said housing and a proximal end spaced from said housing; a battery pack separate from said housing, said battery pack attached to said conductors at the proximal end of said conductor assembly; and a switch assembly mounted to said housing for selectively establishing a connection between at least one of said conductors and said motor, said switch assembly having a switch element moveably attached to said handle, said switch assembly being configured so that; when said switch element is in a first position, said switch assembly does not supply an energization signal to said motor; when said switch element is in a second position, said switch assembly supplies a first energization signal from said battery pack to said motor; and when said switch element is in a third position, said switch assembly supplies a second energization signal from said battery pack to said motor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A medical irrigator comprising:
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a housing shaped to have a front end; a suction tube disposed in said housing having an inlet end that opens from the front end of said housing; a pulse discharge pump that operates at a variable rate disposed in said housing having an inlet and discharge conduit, the discharge conduit opening towards the front end of said housing; an inlet line that extends into said housing that is in fluid communication with the pump inlet; a single electric motor disposed in said housing and connected to said pump to actuate said pump, said motor operating at variable speeds to regulate the pumping rate of said pump; a battery pack separate and spaced from said housing that contains at least one battery that stores energy for energizing said motor; a flexible cable that extends from said battery pack to said housing for supplying energy from said battery pack to said motor; and a control assembly integral with said housing, said control assembly having a switch member moveably mounted to said housing and said control assembly being configured to apply a variable energization signal from said battery pack to said motor so as to control the speed of said motor and regulate the pumping rate of said pump. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A medical irrigator, said irrigator comprising:
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a housing having a front face shaped to receive a medical tip assembly; a pulse discharge pump that operates a variable rate, said pump having an inlet and an outlet, the outlet opening into the front face of said housing so as to be in fluid communication with a first conduit of the tip assembly; a suction tube in said housing having an open end located adjacent the front face of said barrel so as to be in fluid communication with a second conduit of the tip assembly; a single, variable speed electrical motor disposed in said housing connected to said pump for actuating said pump at variable rates; a battery unit separate from said housing for supplying energy to said motor; a control assembly mounted to said housing and connected to said battery unit and to said motor for supplying a variable potential energization signal to said motor, said control assembly having a single switch member that is moveably attached to said housing that selectively makes/breaks a connection between said battery unit and said motor and establishes the potential of the energization signal supplied to said motor. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A medical irrigator, said irrigator comprising:
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a housing having a front face shaped to receive a medical tip assembly; a pulse discharge pump disposed in said housing that operates at a variable rate, said pump having an inlet and an outlet, the outlet opening into the front face of said housing so as to be in fluid communication with a first conduit of the tip assembly; a suction tube in said housing having an open end located adjacent the front face of said housing so as to be in fluid communication with a second conduit of the tip assembly; a single, variable speed electric motor disposed in said housing connected to said pump for actuating said pump at variable rates; a battery pack separate from said housing containing at least one battery; a flexible cable that extends from said battery pack to said housing, said flexible cable having at least one conductor over which an energization signal from said at least one battery is supplied; and a control assembly attached to said housing and connected between said at least one conductor and said motor for supplying a variable potential energization signal to said motor, said control assembly having a single switch member that is moveably attached to said housing that selectively makes/breaks a connection between said at least one conductor and said motor and that establishes the potential of the energization signal supplied to said motor. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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Specification