US5554154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intra-osseous needle drill
Assignee: Teleflex Life Sciences Ltd
•
Filing: 1995-03-03
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Granted: 1996-09-10
•
Expires: 2015-03-03
Abstract
Abstract A drill for a medical needle having a fitting end and a tip suitable for intra-osseous use includes a chuck extending outwardly from a hand-held housing, the chuck including means for releasably receiving the needle at it fitting end. Energy storage means disposed within the housing couple rotational energy to the chuck and attached needle upon activation of a housing-supported switch. Energy storage may either be electrical, in which case the housing includes therein a battery and motor mechanically coupled to the chuck, and an electrical switch having operative connections to the motor and battery. The battery is preferably rechargeable and an optional inductive pick-up may be disposed within the housing along with power-conversion circuitry enabling the battery to be inductively charged. In an alternative embodiment the drill includes mechanical energy storage means in the form of a wind-up spring mechanically coupled to the chuck, and wherein the switch allows energy stored in the spring to be released to rotate the chuck and needle attached thereto.
Inventors
- 👤 Norman Rosenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1628; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150053; A61B5/150106; A61B5/15016; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150503; A61B5/150511; A61B5/150519; A61B5/153; A61B2017/00477
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
195 words
A drill and medical needle assembly, comprising: a needle having a fitting end and a tip suitable for intra-osseous use, the fitting end of the needle featuring a primarily circular but non-symmetrical cross-section including two opposing flat outer surfaces, the drill comprising: a hand-held housing having proximal and distal ends; a chuck to removably receive the needle at its fitting end, the chuck being rotatable and extending outwardly from the distal end of the housing, the physical mounting of the chuck being sufficiently close to the distal end of the housing to minimize lateral movement of the chuck and needle attached thereto during the rotation thereof, the chuck including means for releasably receiving and mating with the fitting end of the needle; energy storage means disposed within the housing and coupled in an energy path to the chuck, the energy released from the energy storage means being sufficient to permit the rotating needle to penetrate into the intra-osseous cavity of a patient; and a user-accessible switch supported on the housing, the activation of which causes at least a portion of the stored energy to be converted into the rotation of the chuck and medical needle.
Claim 2
Dependent Claim
195 words
A drill and medical needle assembly, comprising: a needle having a fitting end and a tip suitable for intra-osseous use, the fitting end of the needle featuring a primarily circular but non-symmetrical cross-section including two opposing flat outer surfaces, the drill comprising: a hand-held housing having proximal and distal ends; a chuck to removably receive the needle at its fitting end, the chuck being rotatable and extending outwardly from the distal end of the housing, the physical mounting of the chuck being sufficiently close to the distal end of the housing to minimize lateral movement of the chuck and needle attached thereto during the rotation thereof, the chuck including means for releasably receiving and mating with the fitting end of the needle; energy storage means disposed within the housing and coupled in an energy path to the chuck, the energy released from the energy storage means being sufficient to permit the rotating needle to penetrate into the intra-osseous cavity of a patient; and a user-accessible switch supported on the housing, the activation of which causes at least a portion of the stored energy to be converted into the rotation of the chuck and medical needle.
Claim 3
Dependent Claim
43 words
The needle drill of claim 1, further including: energy storage means in the form of a battery; a motor having a shaft mechanically coupled to the chuck, and wherein the switch is electrical and includes operative connections among the switch, motor, and battery.
Claim 4
Dependent Claim
10 words
The needle drill of claim 2, including a rechargeable battery.
Claim 5
Dependent Claim
24 words
The needle drill of claim 2, further including an inductive pick-up within the housing and power-conversion circuitry enabling the battery to be inductively charged.
Claim 6
Dependent Claim
28 words
The needle drill of claim 2, further including torque-conversion means disposed between the shaft of the motor and the chuck to increase rotational power available at the needle.
Claim 7
Dependent Claim
28 words
The needle drill of claim 2, further including torque-conversion means disposed between the shaft of the motor and the chuck to increase rotational power available at the needle.
Claim 8
Dependent Claim
45 words
The needle drill of claim 1, further including mechanical energy storage means in the form of a wind-up spring mechanically coupled to the chuck, and wherein the switch allows energy stored in the spring to be released to rotate the chuck and needle attached thereto.
Claim 9
Dependent Claim
63 words
The needle drill of claim 7, further including: a first ratcheting mechanism coupling energy from a wind-up mechanism to the spring; and a release mechanism coupled to the switch which allows the spring to receive and store energy during the wind-up thereof and which further allows the stored energy to be subsequently released to the chuck and needle upon activation of the switch.
Claim 10
Dependent Claim
15 words
The needle drill of claim 7, wherein the spring is of the spirally wound type.
Claim 11
Dependent Claim
29 words
The needle drill of claim 7, further including torque-conversion means disposed between the second end of the spring and the chuck to increase rotational power available at the needle.
Claim 12
Dependent Claim
28 words
The needle drill of claim 1, the areas of the housing associated with the chuck and switch including moisture-impermeable seals to enhance the sterilizability of the drill overall.
References Cited (Backward Citations)
US2419045A
Cited
US3120845A
Cited
US3173417A
Cited
US4867158A
Cited
US5431655A
Cited
US5207697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |