Surgical instrument handle with adjustable actuator position
Inventors
Scheller, Gregg D. • Auld, Michael D.
Assignees
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Publication Number
US-10383650-B2
Publication Date
2019-08-20
Expiration Date
Abstract
A surgical instrument handle operates a microsurgical instrument on a surgical instrument head by manipulation of the instrument handle. The instrument handle has an elongate center rod with a ring mounted on the rod for reciprocating movement. The ring is operatively associated with the surgical instrument head for operation of the microsurgical instrument of the head. A plurality of resilient arms extend along the length of the rod and engage against a sliding surface of the ring. The inward and outward movement of the plurality of arms reciprocates the ring on the handle rod to cause operation of the surgical instrument head.
Core Innovation
The invention relates to a surgical instrument handle for a microsurgical instrument head. The handle includes an elongate rod and a ring mounted on the rod for axially reciprocating sliding movement, with at least a portion of the ring proximal end face formed as a conical sliding surface.
A forward grip member is mounted on the rod and includes a plurality of resilient arms that extend along the rod to distal ends of the arms. The resilient arms are operatively associated with the conical sliding surface such that manually compressing the arm distal ends on the conical sliding surface radially inwardly moves the ring distally and releasing the manual compression moves the ring proximally.
The conical sliding surface pushes the arm distal ends back to an original position when the ring moves proximally. The described structure provides an axially reciprocating ring movement driven by inward and outward movement of the resilient arms over the conical sliding surface, thereby actuating the microsurgical instrument head.
Claims Coverage
The partial content provides one independent claim (clm-00001). It describes two principal inventive structures: an axially reciprocating ring with a conical sliding surface and a forward grip member with resilient arms that drive ring reciprocation upon manual compression and release.
Axially reciprocating ring with conical sliding surface
A ring mounted on the rod for axially reciprocating sliding movement, the ring having opposite proximal and distal end faces with at least a portion of the ring proximal end face formed as a conical sliding surface.
Resilient arms operatively associated with conical sliding surface to reciprocate the ring
A forward grip member having a plurality of resilient arms extending along the rod to distal ends, operatively associated with the conical sliding surface whereby manually compressing the arm distal ends radially inwardly moves the ring distally and releasing moves the ring proximally, with the conical sliding surface pushing the arm distal ends back to an original position.
Across the independent claim, the inventive concept is that manual compression of distal ends of resilient arms on a conical sliding surface produces distal and proximal axial movement of a ring, with the conical surface returning the arms to an original position to drive actuation of the microsurgical instrument head.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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