Radial jaw biopsy forceps
AssigneeSymbiosis Corporation
InventorsThomas O. Bales, Charles R. Slater, Kevin W. Smith
Life of this patent
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Abstract
A biological forceps device for the taking of tissue samples from a body, comprising a flexible main coil attached at its distal end to a pair of homologous cast jaws. The jaws have radially arranged teeth on their distalmost end. The jaws are opened and closed by attachment to a pair of pull wires which extend through the main coil, into a handle at its proximal end. the handle has a spool which slides about a central shaft attached to the main coil. The spool is attached to the pull wires, so that movement of the spool with respect to the central shaft, effectuates a force on the proximal ends of the levered jaws, to open and close them, appropriately.
Claims32
A biopsy forceps device having a proximal end and a distal end, the device comprising:
- an end effector assembly at the distal end of the device, wherein the end effector assembly includes a first jaw and a second jaw, the first jaw being pivotally disposed about a pivotal axis and with respect to the second jaw;
- an actuator at the proximal end of the device;
- and
- a hollow portion connecting the end effector assembly and the actuator, wherein the actuator operates to pivot the first jaw about the pivotal axis and move the first jaw into contact with the second jaw, wherein each of the first and second jaws includes a generally U-shaped configuration defining a center point and having a distalmost end, and wherein an edge of the distalmost end of each of the jaws includes teeth radially disposed about the center point.
An end effector assembly for use in a biopsy forceps device including an actuator at a proximal end of the device and a hollow portion connecting the actuator to the end effector assembly, the end effector assembly comprising:
- a first jaw;
- and
- a second jaw for mating with the first jaw, wherein the first jaw is pivotally disposed with respect to the second jaw about a pivotal axis, and each of the first and second jaws includes a generally U-shaped configuration defining a center point and having a distalmost end, and wherein an edge of the distalmost end of each of the jaws includes teeth radially disposed about the center point.
Dependencies are inferred from the claim text.