Screw cutting tool

Patent metadata

Field	Value
Publication number	US-9486929-B2
Application number	US-201314041311-A
Country	US
Kind code	B2
Filing date	Sep 30, 2013
Priority date	Oct 1, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A screw cutting tool for cutting a screw comprising a first grip having a first cutting aperture, a second grip pivotally connected to the first grip, the second grip having a second cutting aperture, a measuring scale attached to a proximal end of the first or second grip, and a screw holder slidably attached to the measuring scale having a hole extending therethrough, wherein the hole aligns with the first and second cutting apertures in at least one position.

First claim

The invention claimed is:

1. A screw cutting tool for cutting an end portion away from a screw and retaining the end portion, the tool comprising:
a first grip having a first cutting aperture;
a second grip pivotally connected to the first grip, the second grip having a second cutting aperture;
a measuring scale attached to a proximal end of the first grip;
an arcuate slot extending through the proximate end of the first grip;
a screw holder slidably attached to the measuring scale having a hole extending therethrough;
a bracket having a linear slot and a polymeric end portion, the bracket fixedly attached to the first grip and movable relative to the first grip in response to manipulation of the first and/or second grip about a pivotal connection so that in at least one position, the polymeric end portion holds the end portion of the screw in place; and
a pin fixedly attached to the first grip and extending through and engaged within the arcuate slot and the linear slot,
wherein the hole in the screw holder is aligned with the first and second cutting apertures in at least one position.

2. The screw cutting tool of claim 1 , further comprising a spring positioned against the first and second grips, wherein the spring is capable of biasing the grips to an open position.

3. The screw cutting tool of claim 1 , further comprising at least one cutting sleeve disposed within the first cutting aperture and at least one cutting sleeve disposed within the second cutting apertures.

4. The screw cutting tool of claim 1 , wherein the measuring scale is pivotally attached to the proximal end of the first grip.

5. The screw cutting tool of claim 4 , wherein the screw holder is removeable from the measuring scale.

6. The screw cutting tool of claim 1 , wherein the first grip further comprises a third cutting aperture and the second grip further comprises a fourth cutting aperture.

7. The screw cutting tool of claim 6 , further comprising at least one cutting sleeve disposed within the third cutting aperture and at least one cutting sleeve disposed within the fourth cutting apertures.

8. The screw cutting tool of claim 6 , wherein the first grip further comprises a fifth cutting aperture and the second grip further comprises a sixth cutting aperture.

9. The screw cutting tool of claim 8 , further comprising at least one cutting sleeve disposed within the fifth cutting aperture and at least one cutting sleeve disposed within the sixth cutting aperture.

10. A screw cutting tool for cutting a screw comprising:
a first grip having a first cutting aperture;
a second grip pivotally connected to the first grip, the second grip having a second cutting aperture;
a measuring scale attached to a proximal end of the first or second grip;
a screw holder slidably attached to the measuring scale having a hole extending therethrough and aligning with the first and second cutting apertures in at least one position;
a spring positioned against the first and second grips capable of biasing the grips to an open position;
a first cutting sleeve disposed within the first cutting aperture;
a second cutting sleeve disposed within the second cutting aperture;
an arcuate slot extending through the proximal end of the first grip;
a bracket having a linear slot and a polymeric end portion, the bracket being capable of clamping the screw against the polymeric end portion through manipulation of the grips; and
a pin fixedly attached to the first grip and extending through and engaged within the arcuate slot and the linear slot.

Assignees

• Stryker Trauma Sa
• Stryker European Holdings I Llc

Inventors

• Behlen Tobias
• Schmuck Manfred
• Knape Martin

Classifications

• B23D33/10

  Stops for positioning work · CPC title

• A61B17/8863

  Apparatus for shaping or cutting osteosynthesis equipment by medical personnel · CPC title

• B26B13/00

  Hand shears; Scissors · CPC title

• Y10T83/04

  Processes · CPC title

• B26B13/22 Primary

  combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument (cigar cutters per se A24F13/24) · CPC title