US5927976A — Medication injection device and method

Claim 1

Independent Claim 93 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough, and wherein the drill bit is suitable for intraosseous drilling; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing and means for supplying a controlled dose of medication fluid for intraossaous injection through the bore of the drill bit.

Claim 2

Dependent Claim 93 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough, and wherein the drill bit is suitable for intraosseous drilling; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing and means for supplying a controlled dose of medication fluid for intraossaous injection through the bore of the drill bit.

Claim 3

Dependent Claim 29 words

A device as recited in claim 1 wherein the fluid dispensing means supplies the medication fluid to the bore of the drill bit while the drill bit is rotating.

Claim 4

Dependent Claim 88 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit; wherein the hollow drill bit includes a hypodermic needle having a sharpened point.

Claim 5

Dependent Claim 88 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit; wherein the hollow drill bit includes a hypodermic needle having a sharpened point.

Claim 6

Dependent Claim 92 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit; wherein the means for rotating the drill bit includes a first motor coupled to the drill bit.

Claim 7

Dependent Claim 92 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit; wherein the means for rotating the drill bit includes a first motor coupled to the drill bit.

Claim 8

Dependent Claim 119 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit, wherein the fluid dispensing means further includes a duct extending between the fluid reservoir and the bore of the drill bit, a plunger slidably mounted and coupled to the fluid reservoir, and means for moving the plunger to supply fluid to the drill bit.

Claim 9

Dependent Claim 119 words

A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing for supplying a medication fluid to the bore of the drill bit, wherein the fluid dispensing means further includes a duct extending between the fluid reservoir and the bore of the drill bit, a plunger slidably mounted and coupled to the fluid reservoir, and means for moving the plunger to supply fluid to the drill bit.

Claim 10

Dependent Claim 31 words

A device as recited in claim 5 wherein the means for moving the plunger includes a second motor and a drive mechanism coupled to the plunger and driven by the motor.

Claim 11

Dependent Claim 58 words

A device as recited in claim 6 wherein the means for moving the plunger further includes two limit switches each disposed at a limit of travel of the plunger and electrically coupled to the second motor, wherein the limit switches are operable for opening when contacted by the plunger to define the limits of travel of the plunger.

Claim 12

Dependent Claim 39 words

A device as recited in claim 6, further including a foot control pedal operatively coupled to the drill and including a first switch electrically connected to the first motor and a second switch electrically connected to the second motor.

Claim 13

Dependent Claim 38 words

A device as recited in claim 5 wherein the drill bit and duct are mounted to a structure that is detachable, and wherein the detachable structure includes a clip that releasably attaches the detachable structure to the housing.

Claim 14

Dependent Claim 19 words

A device as recited in claim 5 wherein the fluid reservoir is a removable cartridge containing the medication fluid.

Claim 15

Dependent Claim 84 words

A disposable medication dispensing device adapted for use with a dental drill, wherein the dental drill has a drill motor and a coupling for rotating a drill bit, and wherein the dental drill further has a fluid dispenser containing medication fluid, the disposable device comprising: a detachable housing including means for releasably attaching the housing to the dental drill; a rotatable hollow drill bit mounted to the housing; and a duct extending through the housing between the fluid dispenser and the hollow drill bit.

Claim 16

Dependent Claim 84 words

A disposable medication dispensing device adapted for use with a dental drill, wherein the dental drill has a drill motor and a coupling for rotating a drill bit, and wherein the dental drill further has a fluid dispenser containing medication fluid, the disposable device comprising: a detachable housing including means for releasably attaching the housing to the dental drill; a rotatable hollow drill bit mounted to the housing; and a duct extending through the housing between the fluid dispenser and the hollow drill bit.

Claim 17

Dependent Claim 23 words

A device as recited in claim 11 wherein the means for releasably attaching the housing includes a clip that engages the dental drill.

Claim 18

Dependent Claim 20 words

A device as recited in claim 11 wherein the hollow drill bit is a hypodermic needle having a sharpened point.

Claim 19

Dependent Claim 37 words

A device as recited in claim 11 wherein the duct includes a sharpened tip at a proximal end thereof, and wherein the sharpened tip engages the fluid dispenser when the device is attached to the dental drill.

Claim 20

Dependent Claim 33 words

A device as recited in claim 11 wherein the duct includes a blunt tip at a distal end thereof, and wherein the blunt tip fits within a bore of the hollow drill bit.

Claim 21

Independent Claim 57 words

A method of administering medication to a tissue, said method comprising the steps of: drilling an opening in said tissue with a hollow drill bit; injecting medication into said opening through the hollow drill bit while drilling; and further injecting medication into said opening through the hollow drill bit after the step of drilling has been completed.

Claim 22

Independent Claim 57 words

A method of administering medication to a tissue, said method comprising the steps of: drilling an opening in said tissue with a hollow drill bit; injecting medication into said opening through the hollow drill bit while drilling; and further injecting medication into said opening through the hollow drill bit after the step of drilling has been completed.

Claim 23

Dependent Claim 20 words

A method as recited in claim 16 wherein said tissue is selected from the group comprising bone, cartilage and tendon.

Claim 24

Dependent Claim 14 words

A method as recited in claim 16 wherein the medication is an oral anesthetic.

Claim 25

Dependent Claim 21 words

A method as recited in claim 16 wherein the step of injecting medication is also performed before the step of drilling.

Claim 26

Independent Claim 89 words

A method of administering a medication comprising the steps of: providing a drilling apparatus having a reservoir of the medication, having a hollow drill bit and means for rotating the drill bit, and having a means for supplying the medication to the hollow drill bit; drilling an opening in a tissue with the hollow drill bit and injecting medication through the hollow drill bit while drilling; and injecting the medication through the hollow drill bit and the drilled opening into the tissue after the drilling step has been completed.

Claim 27

Independent Claim 89 words

A method of administering a medication comprising the steps of: providing a drilling apparatus having a reservoir of the medication, having a hollow drill bit and means for rotating the drill bit, and having a means for supplying the medication to the hollow drill bit; drilling an opening in a tissue with the hollow drill bit and injecting medication through the hollow drill bit while drilling; and injecting the medication through the hollow drill bit and the drilled opening into the tissue after the drilling step has been completed.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2002-07-26	2003-01-25	2003-07-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2006-07-26	2007-01-25	2007-07-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2010-07-26	2011-01-25	2011-07-27	$7700.00	Window Closed / Lapsed

Medication injection device and method

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