Medical suction device
View Patent ↗A medical device for fragmenting objects and aspirating remaining debris enables a physician or other medical personnel quickly and easily remove objects, such as kidney stones, from a patient. The medical device can include a dual-lumen elongated member and a handle coupled to the elongated member. A first one of the lumens provides a suction passageway, and a second one of the lumens receives a laser fiber for delivering laser energy to an object, such as a kidney stone, within the patient. The handle can include a positioning mechanism to enable the physician by manual manipulation to move and hold in place the laser fiber longitudinally within the second lumen.
1. A medical device, comprising:
an elongated member having a proximal end, a distal end, a first lumen extending longitudinally through the elongated member, and a second lumen, separate from the first lumen, extending longitudinally through the elongated member, the first lumen for providing suction, the second lumen for receiving a laser fiber for delivering laser energy beyond the distal end of the elongated member, the first and second lumens providing the only lumens through the elongated member; and
a handle having a first actuation mechanism configured to selectively enable suction within the first lumen and a second actuation mechanism configured to position the laser fiber relative to the distal end of the elongated member,
wherein a distal end of the first lumen is tapered where the second lumen is untapered.
2. The medical device of claim 1 , further comprising a flexible suction tube within a cavity of the handle, the flexible suction tube being in communication with the first lumen.
3. The medical device of claim 2 , wherein the first actuation mechanism is configured to seal a suction path in the suction tube when in a first position and open the suction path when in a second position.
4. The medical device of claim 3 , wherein the first actuation mechanism is one of a button or a lever.
5. The medical device of claim 1 , wherein the second actuation mechanism includes a pair of rotatable thumbwheels, wherein a portion of the thumbwheels is disposed within the handle for controlling longitudinal movement of the laser fiber within the second lumen.
6. The medical device of claim 1 , wherein the second actuation mechanism includes a plunger, wherein a portion of the plunger is disposed within the handle for controlling longitudinal movement of the laser fiber within the second lumen.
7. A medical device, comprising:
an elongated member comprising a proximal end and a distal end, the elongated member having a first lumen for providing a suction passageway, and a second lumen for receiving a laser fiber for delivering laser energy beyond the distal end of the elongated member; and
a handle having a suction tube in communication with the first lumen, wherein the handle is configured to provide suction in the suction tube and in the first lumen;
wherein a distal portion of the elongated member is tapered where the second lumen is untapered, and
wherein a distal termination of the elongated member has a flat plane that is perpendicular to a longitudinal axis of the elongated member, the distal termination defining a first aperture in communication with the first lumen for applying suction and a second aperture for receiving the laser fiber from the second lumen.
8. The medical device of claim 7 , wherein a cross-sectional area of the first lumen along the distal portion of the elongated member is less than that of a remaining portion of the first lumen.
9. The medical device of claim 8 , wherein the first lumen has a semicircular cross-sectional shape and wherein the second lumen has a circular cross-sectional shape.
10. The medical device of claim 7 , further comprising a laser fiber positioning mechanism having at least a portion thereof disposed within the handle for controlling longitudinal movement of the laser fiber within the second lumen.
11. The medical device of claim 7 , wherein the distal portion comprises a translucent material.
12. The medical device of claim 7 , wherein the distal portion has a color different from that of a remaining portion of the elongated member.
13. A medical device, comprising:
an elongated member comprising a proximal end and a distal end, the elongated member having a first lumen for providing a suction passageway, a second lumen for receiving a laser fiber for delivering laser energy through the second lumen and beyond the distal end of the elongated member; and
a suction tube disposed within a cavity of a handle and in communication with the first lumen, the suction tube being configured to selectively control suction through the first lumen;
wherein the first lumen has a diameter along a length of a distal portion of elongate member that is less than a diameter along a length of a remaining portion of the first lumen, and
wherein a distal termination of the elongated member has a flat plane perpendicular to a longitudinal axis of the elongated member, and
wherein the second lumen has a constant diameter from the proximal end of the elongate elongated member to the distal end of the elongate elongated member.
14. The medical device of claim 13 , wherein the distal portion is tapered.
15. The medical device of claim 13 , wherein the distal portion comprises translucent material.
16. The medical device of claim 13 , wherein, a portion of the distal end has a color different from that of the remaining portion of the elongated member.
17. The medical device of claim 13 , wherein the suction tube is flexible and the handle is configured to crimp the suction tube to control suction.