A surgical instrument includes a jaw assembly (2) comprising first and second jaw members (3) and (4) pivotally connected one to the other so as to be movable between respective open and closed positions. First and second handle members (8) and (12) are connected to the first and second jaw members respectively, the first and second handle members each including a hollow tubular portion (10) and (14) at the distal end of the handle member. The first and second jaw members (3) and (4) each include an extension (6) and (7) at the proximal end of each jaw member. The external diameter of each extension and the internal diameter of each tubular portion are such that each handle member is connected to a respective one of the jaw members by means of a press-fit connection. To allow for manufacturing tolerances components, the extensions (6) and (7) each include one or more externally facing ribs (19 a to 19 j), the height of the ribs increasing from a first height towards the first end of the extension to a second height towards the second end of the extension.

Surgical instrument construction

A surgical instrument includes a jaw assembly (2) comprising first and second jaw members (3 and 4) pivotally connected one to the other so as to be movable between respective open and closed positions. First and second handle members (8 and 12) are connected to the first and second jaw members (3 and 4) respectively, the first and second handle members each including a hollow tubular portion (10 and 14) at its distal end. The first and second jaw members (3 and 4) each include an extension (6 and 7) at its proximal end. The external diameter of each extension (6 and 7), and the internal diameter of each tubular portion (10 and 14) are such that each handle member (8 and 12) is connected to a respective one of the jaw members (3 and 4) by means of a press-fit connection. To allow for manufacturing tolerances, the extensions (6 and 7) each include one or more externally-facing ribs (19a to 19j), the height of the ribs increasing from a first height towards the first end of each extension (6 and 7) to a second height towards the second end of that extension.

A surgical instrument

A surgical core biopsy apparatus, having a hollow elongated member with an axis and a leading end, a sharpened edge at a portion of the leading end for cutting tissue along the axis, an actuator, and a cutting edge, linked to the actuator, being movable along a path including a transverse component to the axis, effective for severing tissue along an the path. The path is preferably an arcuate path, the cutting device being pivoted about an axis transverse to the axis of said hollow elongated member at said leading end. The actuator preferably acts by way of a compression force transmitted along the axis by a compression member, from a handle portion to the cutting edge. The elongated member is preferably a tube having two or more lumens, a first large centrally located lumen for accommodating a tissue core sample, and at least one other eccentrically located rectangular cross section lumen containing the compression member. The biopsy apparatus may be used, for example, to obtain a percutaneous excision breast biopsy from a tumor whose location is marked with a radiopaque guide wire.

Surgical biopsy device

A captive structural fastener including an integral hold-out feature is provided. The fastener includes a stud assembly including a stud, a retaining ring including two oppositely disposed tabs protruding toward the center of the retaining ring, a first sleeve that is matingly engageable with a second sleeve, the second sleeve including an inwardly disposed channel for receiving the retaining ring; and a receptacle assembly, the receptacle assembly including a bracket constructed and arranged to be secured to a panel, an internally threaded nut, a retaining clamp for securing the nut in the bracket, and a grommet assembly including means defining a bore for receiving the stud therethrough.

Structural fasteners and components thereof

A pair of metal shears has two blades, two handles, a tag and a locking lever. The blades are pivotally connected to each other with a first pivot pin. The handles are pivotally connected to each other with a second pivot pin. Each handle is pivotally connected to one of the blade with a third pivot pin. The tag is attached to one of the handles to show information of the pair of metal shears. The locking lever is pivotally attached to one of the handles to engage with the other handle. With such an attached tag, the information or instructions about the metal shears can be clearly shown on the tag.

Metal shears with an attached tag

A compound action snips includes a pair of handles mutually connected at a handle pivot and a pair of cutting blades connected to the handles. The blades each having a proximal end attached to a distal portion of one of the handles, and the blades are mutually connected at a blade pivot, so that converging movement of the handles causes converging movement of the blades. The blades have a cutting length in a range of 2.5 to 3.5 inches and a functional handle length of about 5.8 inches. The snips have a ratio of cutting length to overall snips length in a range of about 0.24 to 0.33, and a ratio of cutting length to handle length in a range of about 0.4 to 0.6. In addition, the ratio of the cutting length to the angular range of motion of the handles is in the range of about 0.05 to 0.09 inches/degree for a handle range of movement of 40° to 50°.

Multiple purpose compound action snips

An adjustable and releasable fastener for a pivoting hand tool includes a first bushing and a second bushing which are press fit in respective tool elements, the second bushing extending into a hole in the first bushing to form a pivot bearing. The first bushing includes a cap with a recess having a slotted opening connecting to the hole in the first bushing. A bolt is extends through the first and second bushings, with a bolt head disposed in the recess. A nut is fastened to a threaded end on the second bushing side. The nut can be tightened or loosened to adjust the tension on the bolt. The bolt head is shaped to allow it to pass through the slotted opening in the first bushing when the tool elements are pivoted beyond an operating range, permitting quick release of the tool elements.

Adjustable, quick disconnect pivot fastener

A cutting tool including a pair of jaws wherein each jaw has a first and second end. The jaws are pivotally coupled to each other such that the first ends engage with one another when the jaws are in a closed position. The tool further includes a pair of hollow tubular extensions each having a bend therein and first and second portions merging into one another at said bend. Each second end of one of the jaws extends into the first portion of a respective extension which includes a crimped section that fixedly secures the jaw thereto. When the jaws are in the closed position, the first portions converge toward each other and the second portions diverge from the first portions.

High leverage shears

Compound action snips

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Multiple purpose compound action snips

Adjustable, quick disconnect pivot fastener

High leverage shears

Compound action snips