HANDLE FOR LITHOTRIPSY BASKET DEVICE
First Claim
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1. A lithotriptor device comprising:
- a proximal handle;
an elongate sheath with a lumen extending longitudinally therethrough;
a basket wire; and
a basket attached to the basket wire near a distal end thereof, wherein the wire extends through the lumen of the elongate sheath;
the handle comprising a first handle member and a second handle member axially movable relative to the first handle member, one of the first handle member and the second handle member connected to the elongate sheath, the other of the first handle member and the second handle member connected to the basket wire;
the first and second handle members each comprising an engagement member configured to be engaged by a hand of the user;
the second handle member further comprising at least one lever and pawl assembly having a lever and a pawl, wherein the pawl is rotatably attached near a first end of the lever and is biased in engagement with an engagement portion of the first handle member, and wherein a fulcrum of the lever connects the lever to the second handle member.
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Abstract
A lithotriptor system and method configured to provide both direct compressive force and a compressive force with mechanical advantage by providing at least one lever mechanism.
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Citations
20 Claims
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1. A lithotriptor device comprising:
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a proximal handle;
an elongate sheath with a lumen extending longitudinally therethrough;
a basket wire; and
a basket attached to the basket wire near a distal end thereof, wherein the wire extends through the lumen of the elongate sheath;
the handle comprising a first handle member and a second handle member axially movable relative to the first handle member, one of the first handle member and the second handle member connected to the elongate sheath, the other of the first handle member and the second handle member connected to the basket wire;
the first and second handle members each comprising an engagement member configured to be engaged by a hand of the user;
the second handle member further comprising at least one lever and pawl assembly having a lever and a pawl, wherein the pawl is rotatably attached near a first end of the lever and is biased in engagement with an engagement portion of the first handle member, and wherein a fulcrum of the lever connects the lever to the second handle member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lithotriptor device having a proximal end and a distal end, and comprising:
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an elongate shaft with a lumen extending longitudinally therethrough;
a wire extending through the lumen of the elongate shaft;
a first handle member comprising an attachment to the shaft; and
a second handle member mounted to the first handle member in a manner allowing a generally axial movement of the second handle member relative to the first handle member;
the second handle member comprising an attachment to the wire;
wherein, when the second handle member is moved in a proximal direction relative to the first handle member, the wire is pulled in the proximal direction relative to the lumen of the shaft;
the second handle member further comprising at least one lever configured to provide mechanical advantage for moving the second handle member proximally relative to the first handle member. - View Dependent Claims (11, 12, 13, 14)
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15. A lithotriptor device having a proximal end and a distal end, and comprising:
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a first handle member comprising a connection to an elongate shaft, said elongate shaft having a lumen extending therethrough; and
a second handle member mounted to the first handle member in a manner allowing movement of the first handle member relative to the second handle member;
the second handle member comprising a connection to a basket wire, said basket wire disposed through the lumen of the elongate shaft and a means for providing mechanical advantage when moving the first handle member relative to the second handle member, and wherein a movement of the first handle member relative to the second handle member moves the basket wire relative to the elongate shaft. - View Dependent Claims (16, 17, 18)
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19. A method for disrupting the integrity of an object, said method comprising the steps of:
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providing a lithotriptor device comprising;
a proximal handle;
an elongate sheath with a lumen extending therethrough; and
a basket distally attached to a basket wire, the wire extending through the lumen of the elongate sheath;
the handle comprising a first handle member and a second handle member axially movable relative to the first handle member, the first handle member connected to the elongate sheath, the second handle member connected to the basket wire;
the second handle member further comprising at least one lever and pawl assembly having a lever and a pawl, wherein the pawl is rotatably attached near a first end of the lever and is biased in engagement with a region of the first handle member, and wherein a fulcrum of the lever connects the lever to the second handle member;
engaging the basket around an object;
moving the second handle member relative to the first handle member such that the basket wire is drawn proximally into the elongate sheath and the basket is drawn tightly around the object; and
actuating the at least one lever and pawl assembly by operating the lever such that the pawl'"'"'s engagement with the first handle member moves the elongate sheath distally relative to the basket wire. - View Dependent Claims (20)
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Specification