US20030225411A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method to access bone marrow
Assignee: Teleflex Life Sciences II LLC
•
Filing: 2003-05-30
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Granted: —
•
Expires: 2023-05-30
Abstract
Abstract An apparatus and method for penetrating bone marrow is provided. The apparatus may include a housing such as a handheld body, a penetrator assembly, a connector that releasably attaches the penetrator assembly to a drill shaft, a gear mechanism, a motor and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors are provided to attach the penetrator assembly to the drill shaft.
Inventors
- 👤 Larry Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:30
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B10/0283; A61B17/00; A61B17/16; A61B17/1613; A61B17/1615; A61B17/1617; A61B17/1622; A61B17/1662; A61B17/1671; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/32053; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3423; A61B17/3472; A61B17/3476; A61B17/3494; A61B17/3496; A61M; A61M5/00; A61M5/14; A61M5/158; A61B17/1637; A61B2010/0208; A61B2010/0258; A61B2017/00367; A61B2017/00398; A61B2017/0046; A61B2017/00681; A61B2017/00734; A61B2017/320024; A61B17/3403; A61B2017/3405; A61B50/00; A61B50/30; A61B2050/3008; A61B90/00; A61B90/03; A61B2090/033; A61B2090/034; A61B90/08; A61B2090/0813; A61B2217/00; A61B2217/002; A61B2217/005; A61B50/33; A61B90/10; A61B90/11; A61B90/70; A61M1/00; A61M1/84; A61M2005/1581; A61M2005/1585; A61M2210/00; A61M2210/02
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
101 words
1 . An apparatus for penetrating a bone marrow comprising: a housing; a penetrator assembly, operable to penetrate the bone marrow, having a removable inner trocar and an outer penetrator; a connector operable to releasably attach the penetrator assembly to a drill shaft; the drill shaft operable to connect the penetrator assembly to a gear assembly; a gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 2
Dependent Claim
101 words
1 . An apparatus for penetrating a bone marrow comprising: a housing; a penetrator assembly, operable to penetrate the bone marrow, having a removable inner trocar and an outer penetrator; a connector operable to releasably attach the penetrator assembly to a drill shaft; the drill shaft operable to connect the penetrator assembly to a gear assembly; a gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 3
Dependent Claim
20 words
2 . The apparatus of claim 1 wherein the releasable connector comprises a pentagonal connector coupled to a release mechanism.
Claim 4
Dependent Claim
29 words
3 . The apparatus of claim 2 wherein the release mechanism is selected from a group consisting of an O-ring connector, a magnet and a ball and detent mechanism.
Claim 5
Dependent Claim
22 words
4 . The apparatus of claim 1 wherein the releasable connector comprises a lock and key connector coupled to a release mechanism.
Claim 6
Dependent Claim
29 words
5 . The apparatus of claim 4 wherein the release mechanism is selected from a group consisting of an O-ring connector, a magnet and a ball and detent mechanism.
Claim 7
Dependent Claim
15 words
6 . The apparatus of claim 1 wherein the gear assembly comprises a reduction gear.
Claim 8
Dependent Claim
15 words
7 . The apparatus of claim 1 wherein the gear assembly comprises a planetary gear.
Claim 9
Dependent Claim
21 words
8 . The apparatus of claim 1 wherein the outer penetrator and inner trocar are coupled with a luer lock connection.
Claim 10
Dependent Claim
42 words
9 . The apparatus of claim 1 , the penetrator assembly trocar comprising a tip having a longitudinal groove operable to release bone chips from an insertion site into the bone marrow and the penetrator assembly outer penetrator having a cutting edge.
Claim 11
Dependent Claim
16 words
10 . The apparatus of claim 1 wherein the penetrator assembly trocar comprises a paddle tip.
Claim 12
Dependent Claim
16 words
11 . The apparatus of claim 1 wherein the power supply comprises a plurality of batteries.
Claim 13
Dependent Claim
17 words
12 . The apparatus of claim 1 wherein the power supply comprises a source of direct current.
Claim 14
Dependent Claim
17 words
13 . The apparatus of claim 1 wherein the power supply comprises a source of alternating current.
Claim 15
Dependent Claim
16 words
14 . The apparatus of claim 1 wherein power supply comprises at least one rechargeable battery.
Claim 16
Dependent Claim
12 words
15 . The apparatus of claim 1 wherein the motor is gas-powered.
Claim 17
Dependent Claim
14 words
16 . The apparatus of claim 1 wherein the motor comprises a reciprocating motor.
Claim 18
Dependent Claim
14 words
17 . The apparatus of claim 1 wherein the motor comprises a rotational motor.
Claim 19
Dependent Claim
26 words
18 . The apparatus of claim 1 wherein the drill shaft comprises a first end operable to interdigitate with a second end of the drill shaft.
Claim 20
Dependent Claim
14 words
19 . The apparatus of claim 1 wherein the housing includes a thruster bearing.
Claim 21
Dependent Claim
21 words
20 . The apparatus of claim 1 wherein the outer penetrator is operable to attach to a standard intravenous extension tube.
Claim 22
Dependent Claim
20 words
21 . The apparatus of claim 1 wherein the outer penetrator is operable to connect to a right angle connector
Claim 23
Dependent Claim
42 words
22 . A penetrator assembly operable to provide access to a bone marrow comprising: an outer penetrator and a removable inner trocar operable to penetrate the bone marrow; and a connector operable to releasably attach the penetrator assembly to a power drill.
Claim 24
Dependent Claim
42 words
22 . A penetrator assembly operable to provide access to a bone marrow comprising: an outer penetrator and a removable inner trocar operable to penetrate the bone marrow; and a connector operable to releasably attach the penetrator assembly to a power drill.
Claim 25
Dependent Claim
106 words
23 . The penetrator assembly of claim 22 further comprising: the inner trocar having a handle, the handle including a surface having a series of discs formed along a longitudinal axis of the trocar that allows a user to grasp and manipulate the device; the inner trocar operable to releasably engage the connector; the outer penetrator having a handle, the handle including a surface having a series of discs formed along a longitudinal axis; a luer lock connector operable to releasably engage the inner trocar with the outer penetrator; and the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow.
Claim 26
Dependent Claim
24 words
24 . The penetrator assembly of claim 22 wherein the flange comprises at least one circular groove operable to articulate with a needle cover.
Claim 27
Dependent Claim
29 words
25 . The penetrator of claim 22 wherein the inner trocar comprises a metal disc embedded at the connecting point operable to engage a magnet disposed in the connector.
Claim 28
Dependent Claim
101 words
26 . A penetrator assembly operable to provide access to a bone marrow comprising: an outer penetrator and a removable inner trocar operable to penetrate the bone marrow; the inner trocar having a handle, the handle including a grasping means that allows a user to grasp and manipulate the device; the outer penetrator having a handle, the handle including a grasping means; the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow; a connector operable to releasably attach the penetrator assembly to a power drill and the inner trocar operable to releasably engage the connector.
Claim 29
Dependent Claim
101 words
26 . A penetrator assembly operable to provide access to a bone marrow comprising: an outer penetrator and a removable inner trocar operable to penetrate the bone marrow; the inner trocar having a handle, the handle including a grasping means that allows a user to grasp and manipulate the device; the outer penetrator having a handle, the handle including a grasping means; the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow; a connector operable to releasably attach the penetrator assembly to a power drill and the inner trocar operable to releasably engage the connector.
Claim 30
Dependent Claim
27 words
27 . The penetrator assembly of claim 26 wherein the connector comprises a luer lock connector operable to releasably engage the inner trocar with the outer penetrator.
Claim 31
Dependent Claim
31 words
28 . The penetrator assembly of claim 26 wherein the outer penetrator is operable to connect to a source of intravenous fluids or medication by means of a right angle connector.
Claim 32
Dependent Claim
95 words
29 . An apparatus for penetrating a bone marrow comprising: a housing; a penetrator assembly, operable to penetrate the bone marrow; a connector operable to releasably attach the penetrator assembly to a drill shaft; the drill shaft operable to connect the penetrator assembly to a reduction gear assembly; a reduction gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the reduction gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 33
Dependent Claim
95 words
29 . An apparatus for penetrating a bone marrow comprising: a housing; a penetrator assembly, operable to penetrate the bone marrow; a connector operable to releasably attach the penetrator assembly to a drill shaft; the drill shaft operable to connect the penetrator assembly to a reduction gear assembly; a reduction gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the reduction gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 34
Dependent Claim
20 words
30 . The apparatus of claim 29 wherein the releasable connector comprises a pentagonal connector coupled to a release mechanism.
Claim 35
Dependent Claim
29 words
31 . The apparatus of claim 29 wherein the release mechanism is selected from a group consisting of an O-ring connector, a magnet and a ball and detent mechanism.
Claim 36
Dependent Claim
22 words
32 . The apparatus of claim 29 wherein the releasable connector comprises a lock and key connector coupled to a release mechanism.
Claim 37
Dependent Claim
29 words
33 . The apparatus of claim 29 wherein the release mechanism is selected from a group consisting of an O-ring connector, a magnet and a ball and detent mechanism.
Claim 38
Dependent Claim
29 words
34 . The apparatus of claim 29 wherein the reduction gear assembly comprises a first shaft attached to a worm gear operable to engage at least one other gear.
Claim 39
Dependent Claim
28 words
35 . The apparatus of claim 29 wherein the reduction gear assembly comprises a first shaft attached to a gear operable to engage at least one other gear.
Claim 40
Dependent Claim
16 words
36 . The apparatus of claim 29 wherein the reduction gear assembly comprises a planetary gear.
Claim 41
Dependent Claim
21 words
37 . The apparatus of claim 29 wherein the reduction gear assembly is offset at an angle relative to the motor.
Claim 42
Dependent Claim
23 words
38 . The apparatus of claim 29 further comprising a luer lock connection operable to releasably connect the trocar and the outer needle.
Claim 43
Dependent Claim
16 words
39 . The apparatus of claim 29 wherein the power supply comprises a plurality of batteries.
Claim 44
Dependent Claim
17 words
40 . The apparatus of claim 29 wherein the power supply comprises a source of direct current.
Claim 45
Dependent Claim
17 words
41 . The apparatus of claim 29 wherein the power supply comprises a source of alternating current.
Claim 46
Dependent Claim
16 words
42 . The apparatus of claim 29 wherein power supply comprises at least one rechargeable battery.
Claim 47
Dependent Claim
14 words
43 . The apparatus of claim 29 wherein the motor comprises a reciprocating motor.
Claim 48
Dependent Claim
14 words
44 . The apparatus of claim 29 wherein the motor comprises a rotational motor.
Claim 49
Dependent Claim
26 words
45 . The apparatus of claim 29 wherein the drill shaft comprises a first end operable to interdigitate with a second end of the drill shaft.
Claim 50
Dependent Claim
16 words
46 . The apparatus of claim 29 wherein the drill shaft comprises a thruster bearing. 073252.0107
Claim 51
Dependent Claim
53 words
47 . A method of accessing the bone marrow comprising: inserting a penetrator assembly into the bone marrow by means of a powered apparatus; detaching the powered apparatus from the penetrator; removing an inner trocar from an outer penetrator of a penetrator assembly; and attaching a right angle connector to the outer penetrator.
Claim 52
Dependent Claim
53 words
47 . A method of accessing the bone marrow comprising: inserting a penetrator assembly into the bone marrow by means of a powered apparatus; detaching the powered apparatus from the penetrator; removing an inner trocar from an outer penetrator of a penetrator assembly; and attaching a right angle connector to the outer penetrator.
Claim 53
Dependent Claim
57 words
48 . A method of accessing a bone marrow comprising: inserting a penetrator assembly into the bone marrow by means of a powered apparatus; detaching the powered apparatus from the penetrator; removing an inner trocar from an outer penetrator of a penetrator assembly; and attaching an adapter suitable to convey medications or fluids to the bone marrow.
Claim 54
Dependent Claim
57 words
48 . A method of accessing a bone marrow comprising: inserting a penetrator assembly into the bone marrow by means of a powered apparatus; detaching the powered apparatus from the penetrator; removing an inner trocar from an outer penetrator of a penetrator assembly; and attaching an adapter suitable to convey medications or fluids to the bone marrow.
Claim 55
Dependent Claim
146 words
49 . A method of manufacturing an apparatus operable to penetrate a bone marrow comprising: manufacturing a housing having a connector operable to releasably attach a penetrator assembly to a drill shaft, a drill shaft operable to attach the penetrator assembly to a gear assembly, a gear assembly operable to engage and rotate the drill shaft, a motor operable to engage the gear assembly and drive a penetrator assembly into the bone marrow and a power supply and associated circuitry operable to power the motor; the drill shaft operable to connect the penetrator assembly to a reduction gear assembly; a reduction gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the reduction gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 56
Dependent Claim
146 words
49 . A method of manufacturing an apparatus operable to penetrate a bone marrow comprising: manufacturing a housing having a connector operable to releasably attach a penetrator assembly to a drill shaft, a drill shaft operable to attach the penetrator assembly to a gear assembly, a gear assembly operable to engage and rotate the drill shaft, a motor operable to engage the gear assembly and drive a penetrator assembly into the bone marrow and a power supply and associated circuitry operable to power the motor; the drill shaft operable to connect the penetrator assembly to a reduction gear assembly; a reduction gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the reduction gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.
Claim 57
Dependent Claim
20 words
50 . The method of claim 49 wherein the penetrator assembly comprises an outer penetrator and a removable inner trocar.
Claim 58
Dependent Claim
27 words
51 . A method of manufacturing a penetrator assembly comprising an inner trocar and an outer penetrator to form a matched drilling unit having a cutting edge.
Claim 59
Dependent Claim
27 words
51 . A method of manufacturing a penetrator assembly comprising an inner trocar and an outer penetrator to form a matched drilling unit having a cutting edge.
Claim 60
Dependent Claim
142 words
52 . A kit for use in penetrating a bone marrow in an extremity comprising: a carrying case; an apparatus for penetrating the bone marrow including a housing and penetrator assemblies operable to penetrate the bone marrow; and a removable inner trocar and an outer penetrator forming portions of at least one of the penetrator assemblies, a connector operable to releasably attach the penetrator assembly to a drill shaft, the drill shaft operable to connect the penetrator assembly to a gear assembly, a gear assembly operable to engage and rotate the drill shaft, a motor operable to engage the gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft and a power supply and associated circuitry operable to power the motor; and a strap operable to immobilize the outer penetrator to a site in an extremity.
Claim 61
Dependent Claim
142 words
52 . A kit for use in penetrating a bone marrow in an extremity comprising: a carrying case; an apparatus for penetrating the bone marrow including a housing and penetrator assemblies operable to penetrate the bone marrow; and a removable inner trocar and an outer penetrator forming portions of at least one of the penetrator assemblies, a connector operable to releasably attach the penetrator assembly to a drill shaft, the drill shaft operable to connect the penetrator assembly to a gear assembly, a gear assembly operable to engage and rotate the drill shaft, a motor operable to engage the gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft and a power supply and associated circuitry operable to power the motor; and a strap operable to immobilize the outer penetrator to a site in an extremity.
Claim 62
Dependent Claim
20 words
53 . The kit of claim 26 further comprising medications to anesthetize and sterilize an insertion site on the extremity.
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