초록 ▼

A medical device is provided. The medical device includes a sheath with an extended distal end portion, a proximal end portion, and a lumen defined therethrough. A handle is fixedly connected to the proximal end portion of the sheath, the handle includes an operator that is translatable between a fi

A medical device is provided. The medical device includes a sheath with an extended distal end portion, a proximal end portion, and a lumen defined therethrough. A handle is fixedly connected to the proximal end portion of the sheath, the handle includes an operator that is translatable between a first position and a second position. A flow path is defined within the handle in fluid communication with the proximal end portion of the sheath, wherein the operator is configured to substantially block the flow path in a second position and allow flow therethrough in a first position. The flow path includes a portion that is configured to communicate with a remote source of suction. The handle additionally includes a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the lumen of the sheath.

대표청구항 ▼

What is claimed is: 1. A medical device comprising: a sheath comprising an extended distal end portion, a proximal end portion, and parallel and segregated first and second lumens defined therethrough; a handle fixedly connected to the proximal end portion of the sheath, the handle comprising an op

What is claimed is: 1. A medical device comprising: a sheath comprising an extended distal end portion, a proximal end portion, and parallel and segregated first and second lumens defined therethrough; a handle fixedly connected to the proximal end portion of the sheath, the handle comprising an operator comprising a trigger pivotably mounted upon the handle that is translatable between a first position and a second position, wherein the trigger is biased into the first position; a flow path defined within the handle in fluid communication with the proximal end portion of the first lumen of the sheath, wherein the operator is configured to substantially block the flow path when the trigger is in the second position and allow flow therethrough when the trigger is in the first position, wherein the flow path comprises a first inlet portion that is configured to communicate with a remote source of suction; and a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the second lumen of the sheath; and a lock slidably disposed upon the handle for selective engagement with the trigger to maintain the trigger in the second position wherein the operator comprises a valve seat that translates with motion of the trigger between the first and second potions, wherein the valve seat rests upon a first pin oriented substantially in the direction of travel of the valve seat, and further comprising a second pin connected with the first pin, the second pin being fixably mounted to the first pin. 2. The medical device of claim 1, wherein the tool is a laser fiber. 3. The medical device of claim 1, wherein the tool is a grasper, snare, forceps, or a basket. 4. The medical device of claim 1, wherein the tool is removable from the second inlet portion and the lumen of the sheath. 5. The medical device of claim 1, wherein the first lumen and the flow path are connected to allow the source of suction to communicate with the distal end portion of the sheath from the extended portion of the flow path. 6. The medical device of claim 1, wherein the flow path further comprises a connector with first, second, and third ports that allow communication between the sheath, the first inlet portion, and the second inlet portion. 7. The medical device of claim 6, where the second inlet portion is disposed substantially collinearly with the proximal end portion of the sheath. 8. The medical device of claim 7, where the second inlet portion comprises a check valve disposed therein to allow entry of the tool into the handle and the first lumen of the sheath, but substantially prevent fluid exit from the second inlet portion. 9. An apparatus for communicating a source of suction to a patient, comprising: a sheath extending from a handle to a distal end portion, and a first lumen extending therethrough; the handle comprising an internal flow path in fluid communication with the first lumen, and a trigger pivotably movable between a first position allowing fluid flow through the internal flow path and a second position to substantially prevent fluid flow through the internal flow path, wherein the trigger is biased into the first position; and wherein the internal flow path is configured to be connected to an external source of suction; and further comprising a lock slidably disposed upon the handle for selective engagement with the trigger to maintain the trigger in the second position wherein the handle further comprises a valve seat operatively connected with the trigger that translates within a flow path housing to block the internal flow path when the trigger is in the second position, and further comprising a first pin extending from the valve seat substantially along the direction of movement of the valve seat and a second pin fixably mounted to the first pin and aligned substantially perpendicularly to the first pin. 10. The apparatus of claim 9, further comprising an aperture on the handle that is fluidly connected to the sheath and the internal flow path, wherein the aperture is configured to allow a tool to pass therethrough and into the internal flow path but substantially prevent fluid flow out of the internal flow path through the aperture. 11. The apparatus of claim 10, wherein the aperture is disposed substantially collinearly with the sheath extending from the handle. 12. The apparatus of claim 9, wherein the second pin is received within an aperture in the trigger to cause the second pin to translate with motion of the trigger. 13. A method for removing fluid and particulate matter within a patient, comprising the steps of: providing the apparatus of claim 9, inserting the sheath within a patient such that the distal end portion of the sheath is proximate a volume of fluid or particulate matter intended for removal; operating the handle constrained with and in fluid communication with the sheath through the internal flow path defined within the handle; and connecting an external source of suction to the internal flow path within the handle to allow suction flow through the internal flow path and the first lumen defined within the sheath; and controlling the flow of suction through the internal flow path with the trigger disposed upon the handle. 14. The method of claim 13, further step of inserting a device through an aperture in the handle that communicates with and through a second lumen defined in the sheath for operation proximate the volume of fluid or particulate matter intended for removal. 15. A medical device comprising: a sheath comprising an extended distal end portion, a proximal end portion, and parallel and segregated first and second lumens defined therethrough, wherein the first and second lumens are defined by first and second tubular members with the second tubular member disposed within the first lumen such that an outer surface of the second tubular member contacts an inner surface of the first tubular member along a length of the sheath; a handle fixedly connected to the proximal end portion of the sheath, the handle comprising an operator comprising a trigger pivotably mounted upon the handle that is translatable between a first position and a second position, wherein the trigger biased into the first position; a flow path defined within the handle in fluid communication with the proximal end portion of the first lumen of the sheath, wherein the operator is configured to substantially block the flow path when the trigger is in the second position and allow flow therethrough when the trigger is in the first position, wherein the flow path comprises a first inlet portion that is configured to communicate with a remote source of suction; and a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the second lumen of the sheath wherein the operator comprises a valve seat that translates with motion of the trigger between the first and second potions, wherein the valve seat rests upon a first pin oriented substantially in the direction of travel of the valve seat, and further comprising a second pin connected with the first pin, the second pin being fixably mounted to the first pin. 16. The medical device of claim 15, wherein the first and second tubular members are stainless steel. 17. The medical device of claim 15, wherein a diameter of the second lumen is significantly smaller than a diameter of the first lumen. 18. The medical device of claim 15, wherein a diameter of the first lumen is one of about 9.5 Fr, 10 Fr, 12 Fr, or 14 Fr and a diameter of the second lumen is about 3 Fr.