Apparatus and method to access bone marrow

• US 8,506,568 B2
• Filed: 10/19/2005
• Issued: 08/13/2013
• Est. Priority Date: 05/31/2002
• Status: Active Grant

• Current Assignee: Teleflex Life Sciences II LLC
• Original Assignee: Vidacare Corp. (Teleflex Incorporated)
• Inventors: Miller, Larry J.
• Primary Examiner(s): Truong, Kevin T
• Assistant Examiner(s): ARAJ, MICHAEL J
• Application Number:
  US11/253,959
• Publication Number:
  US 20060036212A1
• Time in Patent Office: 2,855 Days
• Field of Search: 606/79, 606/80, 606/167, 606/172, 606/180, 606/185
• US Class Current: 606/80
• CPC Class Codes: A61B 10/025 for taking bone, bone marrow or cartilage samples
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence
• CPC Class Codes: A61B 17/1613 Component parts
• CPC Class Codes: A61B 17/1617 with mobile or detachable parts
• 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 17/1671 for the spine
• 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 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• 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 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 2010/0208 Biopsy devices with actuators, e.g. with triggered spring mechanisms
• 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 2017/320024 Morcellators, e.g. having a hollow cutting tube with an annular cutter for morcellating and removing tissue
• CPC Class Codes: A61B 2017/3405 using mechanical guide means
• CPC Class Codes: A61B 2050/3008 : having multiple compartments
• CPC Class Codes: A61B 2090/034 : abutting on parts of the device itself
• CPC Class Codes: A61B 2090/0813 : Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 2217/005 : with suction drainage system
• CPC Class Codes: A61B 50/33 : Trays
• CPC Class Codes: A61B 90/11 : with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61B 90/70 : Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61M 1/84 : Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2005/1581 : Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 : Needle inserters
• CPC Class Codes: A61M 2210/02 : Bones
• CPC Class Codes: A61M 5/158 : Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

Penetrator assemblies that include an outer penetrator and a removable inner trocar. In some of the penetrator assemblies, the removable inner trocar has a handle including a surface with a series of discs formed along a longitudinal axis, and the outer penetrator has a flange operable to engage an insertion site proximate the bone marrow. Some of the penetrator assemblies include a connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by a powered apparatus or power drill.

Claims

1. A penetrator assembly operable to provide access to a bone marrow comprising:

an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone marrow;

a first connector operable to releasably attach the penetrator assembly to a powered apparatus;

the removable inner trocar having a handle;

the handle including a surface with a series of discs formed along a longitudinal axis of the removable inner trocar that allows a user to grasp and manipulate the removable inner trocar;

the outer penetrator having a second connector operable to releasably engage the removable inner trocar with the outer penetrator; and

the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow.

2. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to an adapter.

3. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to a right angle connector.

4. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to an intravenous tubing.

5. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to a syringe.

6. The penetrator assembly of claim 1 wherein the flange comprises at least one circular groove operable to articulate with a needle cover.

7. The penetrator assembly of claim 1 wherein the powered apparatus comprises a powered drill.

8. The penetrator assembly of claim 1 further comprising:

a first connecting piece attached to the outer penetrator;

a second connecting piece attached to the removable inner trocar; and

the first connecting piece operable to releasably engage the second connecting piece when the inner trocar is disposed within the outer penetrator.

9. A penetrator assembly operable to provide access to bone marrow of a bone comprising:

an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone and the associated bone marrow; and

a first connector operable to releasably attach the penetrator assembly to a powered apparatus, a proximal end of the first connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by the powered apparatus;

the first connector further comprising a magnetic disc configured to magnetically resist removal of the shaft from the recess.

10. A penetrator assembly operable to provide access to a bone marrow comprising:

an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone marrow;

the removable inner trocar having a handle operable to allow a user to grasp and manipulate the inner trocar;

the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow; and

a first connector operable to releasably attach the penetrator assembly to a power drill, a proximal end of the first connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by the power drill.

11. The penetrator assembly of claim 10 further comprising a second connector operable to releasably engage the removable inner trocar with the outer penetrator.

12. The penetrator assembly of claim 11 wherein the second connector further comprises a luer lock connector.

13. The penetrator assembly of claim 10 further comprising the outer penetrator operable to connect to a source of intravenous fluids or medication using a tubular connector.

14. The penetrator assembly of claim 10 further comprising a groove operable to receive a plastic cover therein.

15. The penetrator assembly of claim 10 further comprising a penetrator shield operable to prevent inadvertent engagement and to preserve sterility.