US 12,765,886 B2Granted

Cranial drill system

AssigneeNeurochase Limited

InventorsSteven Streatfield Gill, Catriona Anita Fennelly

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Abstract

The invention concerns a cranial drill system comprising one or more surgical drill elements for drilling into the brain. The invention also concerns a cranial drilling system comprising a surgical drill element for drilling into the skull and an element for penetrating the dura. The surgical drill element may comprise a profile that forms an opening in the skull having a narrower diameter portion and a wider diameter portion and the piercing element may be arranged to be a close fit in the narrower diameter portion of the opening. The invention also concerns a cranial drill system comprising a guiding element to be located in a hole formed through the skull and a piercing element for piercing the dura. The guiding element may have a passageway or channel therein for receiving the piercing element such that the piercing element is movable relative to the guide element to pierce the dura.

Claims15

Dependent claims

A kit comprising:

a cranial drill system comprising at least one surgical drill bit configured to drill into a skull and to form an opening in the skull;
a spike configured to pierce at least one of a dura and a brain;
a guide element that is locatable in the opening through engagement with the opening, and comprises (i) an elongate through hole that extends in a lengthwise direction of the guide element and is configured to receive the spike at one end of the through hole and guide the spike through the guide element along the lengthwise direction;
and (ii) a stop surface that limits the insertion of the guide element into the opening,
wherein the guide element is configured so that when the stop surface is in contact with the skull, part of the guide element extends in a first direction outwards from the skull and part of the guide element extends in a second direction opposite the first direction, and the part of the guide element that extends in the first direction is longer than the part of the guide element that extends in the second direction.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/444,089Filed 18 Jun 2019 · continuation
Priority: GB 12097721 Jun 2012
Published: US 2019/0321056 A124 Oct 2019
Granted: 20 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 17/1695
Instruments for performing osteoclasis; Drills or chisels for bones; Trepans: trepans or craniotomes, i.e. specially adapted for drilling thin…
A61B 17/1739
Guides or aligning means for drills , mills, pins or wires: specially adapted for particular parts of the body
A61B 17/1617
Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material: with mobile or detachable parts
A61B 17/1637
Instruments for performing osteoclasis; Drills or chisels for bones; Trepans: hollow drills or saws producing a curved cut, e.g. cylindrical

Family

Application14/403,862Parent of this continuation · filed 31 May 2013
PCT/GB2013/051451Parent of this continuation · filed 31 May 2013
US 2019/0321056 A1Pre-grant publication · published 24 Oct 2019
US 10,363,049 B2Parent of this continuation
US 2015/0127040 A1Published application
US 12,765,886 B2This patent

From the US filing history. Foreign family members aren’t listed.

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