Medical suction and irrigation device
First Claim
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1. A medical device, comprising:
- a housing having a proximal end and a distal end;
an attachment structure located at the distal end of the housing and which is configured for coupling to a medical instrument;
at least one of a suction port or an irrigation port located at the proximal end of the housing and which is configured for connection to a source of suction or irrigation, respectively;
a conduit providing a fluid flow path from the at least one port at the proximal end of the housing to a distal port leading to the medical instrument at the distal end of the housing;
a valve housing chamber comprising a ramp that extends along an external surface of the valve housing chamber; and
at least one valve configured to move within the fluid flow path to selectively actuate suction or irrigation, wherein the at least one valve is configured to rotate along a path defined by the ramp of the valve housing chamber to permit a first level of suction or irrigation and is configured to axially displace along a longitudinal axis of the valve housing chamber in a non-rotating manner to permit a second, higher level of suction or irrigation.
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Abstract
Embodiments of the invention provide a suction evacuation system, or smoke evacuation system, for incorporation into hand-held surgical devices. In particular, the system according to embodiments of the invention can be used in hand-held surgical suction-irrigation devices that may also include electrical systems which deliver energy to effect cutting, ablation and coagulation effects at the surgical site. Embodiments of the invention provide a smoke evacuation system that can be incorporated into a hand-held surgical device wherein the smoke evacuation system is structurally and functionally integrated with the suction control system of the device.
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Citations
44 Claims
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1. A medical device, comprising:
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a housing having a proximal end and a distal end; an attachment structure located at the distal end of the housing and which is configured for coupling to a medical instrument; at least one of a suction port or an irrigation port located at the proximal end of the housing and which is configured for connection to a source of suction or irrigation, respectively; a conduit providing a fluid flow path from the at least one port at the proximal end of the housing to a distal port leading to the medical instrument at the distal end of the housing; a valve housing chamber comprising a ramp that extends along an external surface of the valve housing chamber; and at least one valve configured to move within the fluid flow path to selectively actuate suction or irrigation, wherein the at least one valve is configured to rotate along a path defined by the ramp of the valve housing chamber to permit a first level of suction or irrigation and is configured to axially displace along a longitudinal axis of the valve housing chamber in a non-rotating manner to permit a second, higher level of suction or irrigation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for operating a medical device to perform a medical procedure, comprising:
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providing a medical device comprising; a handpiece housing having a proximal end and a distal end; a medical instrument connected to the distal end of the handpiece housing; at least one of a suction port or an irrigation port located at the proximal end of the housing and which is configured for connection to a source of suction or irrigation respectively; a conduit providing a fluid flow path from the at least one port at the proximal end of the housing to a distal port leading to the medical instrument at the distal end of the housing; a valve housing chamber comprising a ramp that extends along an external surface of the valve housing chamber; and at least one valve configured to move within the fluid flow path to selectively actuate suction or irrigation, wherein the at least one valve is configured to rotate along a path defined by the ramp of the valve housing chamber to permit a first level of suction or irrigation and is configured to axially displace along a longitudinal axis of the valve housing chamber in a non-rotating manner to permit a second, higher level of suction or irrigation; connecting at least one of the suction port and the irrigation port to a source of suction or irrigation; positioning the medical instrument proximate a treatment site; and
actuating either irrigation or suction by controlling movement of the valve. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A medical device, comprising:
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a housing having a proximal end and a distal end; an attachment structure located at the distal end of the housing and which is configured for coupling a medical instrument; a suction port and an irrigation port provided at the proximal end of the housing, the suction and irrigation ports being configured for connection to a source of suction and irrigation respectively; a first fluid passageway providing a first fluid flow path from the suction port at the proximal end of the housing, extending through a suction piston chamber, and out a lumen defined by a distal conduit leading to the medical instrument at the distal end of the housing, a second fluid passageway providing a second fluid flow path from the irrigation port at the proximal end of the housing, extending through an irrigation piston chamber, and out the lumen defined by a distal conduit, an identical movable piston provided within each of the suction piston chamber and the irrigation piston chamber; and a ramp that extends along an external surface of the suction piston chamber, wherein the piston in the suction piston chamber is configured to rotate along a path defined by the ramp of the suction piston chamber and axially translate along a longitudinal axis of the valve housing chamber in a non-rotating manner to provide suction to the medical instrument. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification