# US 11,896,449 B2 · Snapon adjustable implant surgical drill stop and surgical guide

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- Number: US 11,896,449 B2
- Document ID: US11896449B2
- Status: Granted
- Kind: B2
- Application number: 15/356,550
- Filed: 2016-11-19
- Published: 2018-05-24
- Granted: 2024-02-13
- Earliest claimed: 2016-11-19
- Applicants: Sohail M. Ebrahimi
- Inventors: Sohail M. Ebrahimi
- Web page: https://patentgrep.com/patent/US11896449B2

## CPC

- A61C 1/082: {Positioning or guiding, e.g. of drills}
- A61B 1/07: using light-conductive means, e.g. optical fibres
- A61B 1/24: for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
- A61C 1/0061: {Air and water supply systems; Valves specially adapted therefor (A61C1/052 takes precedence; rinsing or air-blowing devices A61C17/02)}
- A61C 1/05: with turbine drive
- A61C 1/06: with electric drive
- A61C 1/084: {of implanting tools}
- A61C 1/088: {Illuminating devices or attachments (for examination of the mouth A61B1/24 and A61B1/06)}
- A61C 3/02: Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
- A61C 5/44: Means for controlling working depth, e.g. supports or boxes with depth-gauging means, stop positioners or files with adjustably-mounted handles
- A61B 2090/034: {abutting on parts of the device itself}
- A61B 2090/036: {abutting on tissue or skin}
- A61C 2201/002: using colour effect, e.g. for identification purposes
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A snap-on snap-off drill stop device for boring into a tooth and or in bone. The stop device that impedes insertion of the bore device into the tooth or bone tissue beyond predetermined depths at pre-selected stages of a drilling process by simplifying the tedious process of exchanging drill bits and drill stops for the ultimate size and depth bore.

## Claims

### Claim 1

A single-piece snap-on interchangeable dental surgical drill stop device comprising:
a single-piece snap-on drill stop having two ends, a first end adapted to taper fit to a hand grip drill handle, the first end partially adapted to the hand grip for rigidly snap-coupling the drill stop device with the hand grip drill handle;
the snap-on drill stop first end having a midsection elbow bending into and permanently continuous to an open drill stop cuff-like collar element with center disposed co-axial to a drill bit and conformably fitting to a drill assembly drill bit, the collar element extruding and permanently coupled to and protruding into the open drill stop cuff-like collar element at the distal second end, and
the snap-on drill stop second end having a drill bit parallel neck permanently continuous with the elbow midsection and collar element to a length short of the drill bit distal end with the open drill stop cuff-like collar element providing an impediment to any drill bit progress into a drill bit normal surface,
whereby the snap-on drill stop device can be inserted and/or removed manually without removing the drill bit and where the drill depth is quickly ascertainable by inspection of the protruding distance below the open drill stop cuff-like collar element.

### Claim 2 (depends on 1)

The single-piece snap-on on interchangeable dental surgical drill stop device of claim 1 further comprising color coded snap-on drill stop.

### Claim 3 (depends on 1)

The single-piece snap-on on interchangeable dental surgical drill stop device of claim 1 further comprising letter marking displaying snap-on drill stop dimensions.

### Claim 4 (depends on 1)

The single-piece snap-on on interchangeable dental surgical drill stop device of claim 1 further comprising color coded snap-on drill stops for drill bit coordination.

### Claim 5 (depends on 1)

The single-piece snap-on on interchangeable dental surgical drilling stop device of claim 1 wherein an arcuate radius stop collar and stop distal end accommodate an interchangeable diameter drill bit.

### Claim 6 (depends on 1)

The single-piece snap-on on interchangeable dental surgical drilling stop device of claim 1 further comprising a distal end of the open drill stop cuff-like collar element is coupled to a stop neck having a stop and guide lip at the stop distal end for viewing a protruding drill bit to a metered depth bore.

### Claim 7 (depends on 1)

The single-piece snap-on on interchangeable dental surgical stop device of claim 1 further comprising snap clip-on components for clipping on or attaching-detaching irrigation ducts, light optical fiber or camera optical fiber from a drill stop snap end to the drill stop distal end for providing fluid or light to the drill site.