Powered driver

• US 10,052,111 B2
• Filed: 09/10/2012
• Issued: 08/21/2018
• Est. Priority Date: 05/30/2003
• Status: Active Grant

• Current Assignee: Teleflex Life Sciences II LLC
• Original Assignee: Teleflex Medical Devices, Sarl (Teleflex Incorporated)
• Inventors: Miller, Larry J., Bolleter, David S., Titkemeyer, Robert W., Kilcoin, Christopher B., Harmon, Matthew T., Trevino, Ruben
• Primary Examiner(s): Bates, David
• Application Number:
  US13/609,001
• Publication Number:
  US 20130096561A1
• Time in Patent Office: 2,171 Days
• Field of Search: 173217, 606180
• CPC Class Codes: A61B 10/025 for taking bone, bone marrow or cartilage samples
• CPC Class Codes: A61B 17/16 Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans arthroscopic bone cutters A61B17/320016; dental implant drills potentially for other surgical use A61C8/0089; bone grinders A61F2/4644, A22C17/06; A61B17/1662 takes precedence over all other subgroups except A61B17/17
• CPC Class Codes: A61B 17/1622 Drill handpieces A61B17/1626, A61B17/1628 take precedence
• CPC Class Codes: A61B 17/1637 Hollow drills or saws producing a curved cut, e.g. cylindrical A61B10/025, A61B17/1695 take precedence
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/3476 Powered trocars, e.g. electrosurgical cutting, lasers, powered knives
• CPC Class Codes: A61B 2010/0258 Marrow samples
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: B23B 45/00 Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00
• CPC Class Codes: B23B 45/02 driven by electric power
• CPC Class Codes: B25B 23/0035 Connection means between socket or screwdriver bit and tool
• CPC Class Codes: B25B 23/12 using magnetic means
• CPC Class Codes: B25D 2250/141 Magnetic parts used in percussive tools
• CPC Class Codes: F41A 17/46 Trigger safeties, i.e. means for preventing trigger movement F41A17/02 - F41A17/40 take precedence
• CPC Class Codes: F41A 17/52 Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns
• CPC Class Codes: F41A 17/54 : Protecting-caps for trigger guards; Trigger locking pieces mounted on, or within, the trigger guard

Abstract

An apparatus and methods are provided to penetrate a bone and associated bone marrow using a powered driver having a gear assembly and a motor. The powered driver may include an indicator operable to show status of a power supply associated with the powered driver. The power supply may include a battery power pack having a diamond shaped cross section. The powered driver may have a handle with a corresponding cross section.

Claims

1. An apparatus operable to insert an intraosseous device into a bone and associated bone marrow comprising:

a housing, the housing forming a handle, the handle configured as an elongated, hollow container sized to receive a power supply;

a drive shaft comprising a tapered surface extending from an opening in the housing, the drive shaft configured to be received within a portion of the intraosseous device and operable to releasably engage the intraosseous device;

a motor disposed within a first portion of the housing and rotatably engaged with the drive shaft;

the power supply and associated electrical circuit operable to power the motor, the power supply disposed within the handle; and

a gear assembly disposed between and rotatably engaged with the motor and the drive shaft, the gear assembly disposed within a second portion of the housing;

the drive shaft coaxially aligned with the motor and the gear assembly;

the motor and the gear assembly having generally cylindrical configurations;

the gear assembly having a nominal outside diameter portion smaller than a corresponding nominal outside diameter portion of the motor;

the first portion of the housing having a larger nominal outside diameter than the second portion of the housing;

the first portion of the housing having a generally cylindrical configuration corresponding to an exterior portion of the motor and the second portion of the housing having a generally cylindrical configuration corresponding to an exterior portion of the gear assembly;

wherein the apparatus is configured to insert the intraosseous device into the bone and associated bone marrow.

2. The apparatus of claim 1 further comprising:

a trigger assembly having at least one portion extending from the housing; and

the trigger assembly operable to activate the motor to rotate the drive shaft.

3. The apparatus of claim 1 wherein the power supply further comprises four batteries disposed adjacent to each other in a generally diamond shaped pattern.

4. The apparatus of claim 1 wherein the power supply further comprises:

four batteries disposed adjacent to each other in a generally diamond shaped pattern; and

a fifth battery disposed on one end of the four batteries.

5. The apparatus of claim 1 wherein the power supply comprises:

a generally diamond shaped cross section; and

a plurality of batteries disposed within the diamond shaped cross section.

6. The apparatus of claim 1 further comprising an over current fuse operational to reduce the potential overheating of the batteries.

7. The apparatus of claim 1 further comprising:

an on-off switch assembly having at least one portion extending from the housing; and

the on-off switch assembly operable to activate the motor to rotate the drive shaft.

8. The apparatus of claim 1 further comprising a trigger switch operable to turn the motor on and off.

9. The apparatus of claim 1 further comprising a timing circuit which may automatically turn off the motor after a set period of time to prevent draining of a battery.

10. The apparatus of claim 1 further comprising:

an indicator disposed on the handle proximate a distal end of the housing; and

the indicator operable to display the amount of power available in the power supply.

11. The apparatus of claim 1 further comprising an over current fuse operational to reduce the potential overheating of the power supply.

18. The apparatus of claim 1, wherein the drive shaft comprises a cross-sectional area with a pentagonal shape.

19. The apparatus of claim 1, further comprising a magnet disposed on and extending from an end of the drive shaft opposite from the housing.

20. The apparatus of claim 1, wherein the housing forms a fluid tight seal with the motor and gear assembly disposed within the fluid tight seal.

21. The apparatus of claim 1, further comprising a sound damping material disposed within the housing configured to reduce noise associated with operating the apparatus to insert the intraosseous device into the bone and associated bone marrow.

23. The apparatus of claim 1, further comprising a thrust pad structure disposed between a proximal end of the housing and adjacent to the motor, the thrust pad structure configured to limit movement of the motor, the gear assembly, and the drive shaft.

12. A powered driver operable to insert an intraosseous device into a bone and associated bone marrow comprising:

a housing having a proximal end and a distal end;

a drive shaft having one end extending from the housing;

a magnet disposed on and extending from an extreme end of the drive shaft opposite from the distal end of the housing, the drive shaft and magnet configured to be received in a connector receptacle of the intraosseous device and the magnet operable to releasably engage the intraosseous device;

a motor disposed within the housing and rotatably engaged with the drive shaft;

a power supply and electrical circuits operable to power the motor; and

a switch assembly connected to the electrical circuits, the switch assembly operable to activate the motor to rotate the drive shaft;

wherein the switch assembly is sealed with the housing to prevent contamination therein; and

wherein the powered driver is configured to insert the intraosseous device into the bone and associated bone marrow.

13. The powered driver of claim 12 wherein the power supply further comprises:

lithium batteries disposed in a sealed battery pack; and

the lithium batteries operable to deliver at least five hundred insertions of respective intraosseous devices without recharge or replacement of the power supply.

14. The powered driver of claim 12 wherein the power supply further comprises:

lithium batteries disposed in a sealed battery pack; and

the lithium batteries operable to deliver at least one thousand insertions of respective intraosseous devices without recharge or replacement of the power supply.

15. The powered driver of claim 12 further comprising:

a portion of the switch assembly extending from the housing; and

the switch assembly operable to move between a first, on position and a second, off position.

16. The powered driver of claim 12 further comprising:

a gear assembly disposed between and rotatably engaged with the motor and the drive shaft;

both the motor and the gear assembly having generally cylindrical configurations; and

the gear assembly having a nominal cross section less than a corresponding nominal cross section of the motor.

17. The powered driver of claim 12 further comprising:

a gear assembly disposed between and rotatably engaged with the motor and the drive shaft;

both the motor and the gear assembly having generally cylindrical configurations; and

the motor having an outside diameter portion larger than any outside diameter portion of the gear assembly.

22. The powered driver of claim 12, wherein the fluid seal is formed of a flexible elastomeric material.

24. A powered driver operable to insert an intraosseous device having a connector receptacle into a bone and associated bone marrow, the powered driver comprising:

a housing having a proximal end and a distal end, the distal end of the housing including an opening;

a motor disposed within a first segment of the housing;

a gear assembly disposed within a second segment of the housing, the motor rotatably engaged with an end of the gear assembly;

a drive shaft partially disposed within the housing and rotatably engaged with another end of the gear assembly opposite from the motor, the drive shaft extending from the gear assembly and through the opening in the distal end of the housing, at least a portion of the drive shaft extending from the opening in the housing is configured to be received within the connector receptacle of the intraosseous device; and

the drive shaft including a distal tip having a magnet disposed thereon, the magnet configured to be received within the connector receptacle of the intraosseous device and operable to releasably engage drive shaft to the intraosseous device.