Apparatus for introducing portals in bone having transversely movable bone probe

• US 8,562,615 B2
• Filed: 02/01/2013
• Issued: 10/22/2013
• Est. Priority Date: 12/07/2007
• Status: Active Grant

• Current Assignee: PYNG Medical Corporation (Teleflex Incorporated)
• Original Assignee: PYNG Medical Corporation (Teleflex Incorporated)
• Inventors: Browne, Gregory Vincent, Simbeck, Werner Reinhard, Denny, Christopher Grant, Bonar, David Brian, Gilhuly, Terence
• Primary Examiner(s): Manahan, Todd
• Assistant Examiner(s): GIBSON, ERIC SHANE
• Application Number:
  US13/757,569
• Publication Number:
  US 20130158484A1
• Time in Patent Office: 263 Days
• Field of Search: 606/79, 606/80, 606 84- 87, 606/108, 606/167, 606/172, 606/179, 606181-186, 604/117, 604158-17003, 604/181, 604/187, 836/991, 303/21, 303/63, 144/360, 144/367, 144/1.1, 144/2.1, 144/3.1
• US Class Current: 606/86.R
• 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 17/1604 Chisels; Rongeurs; Punches; Stamps
• CPC Class Codes: A61B 17/1615 Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1691 for the sternum
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/1789 for the sternum
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/3494 with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors for the peridural space A61B17/3401
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/00548 Gas cartridges therefor
• CPC Class Codes: A61B 2017/3407 including a base for support on the body
• CPC Class Codes: A61B 2017/347 Locking means, e.g. for locking instrument in cannula
• CPC Class Codes: A61B 2090/032 pressure limiting, e.g. hydrostatic
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/08021 of the patient or his organs
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 2005/1585 : Needle inserters
• 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

An apparatus for introducing a bone portal into a bone is described herein. An example apparatus for introducing portals into bone includes a stylet and a handle. The stylet is configured to support an infusion tube assembly. The infusion tube assembly comprises a bone portal. The handle is drivingly coupled to the stylet by a release mechanism. The release mechanism comprises a bone probe that, in a first configuration, extends generally parallel to the stylet. The release mechanism is operative to uncouple the driving coupling between the handle and the stylet upon axial motion of the bone probe relative to the handle. The stylet and bone probe are movable apart from one another to a second configuration.

Claims

1. Apparatus for introducing a bone portal into a bone, the apparatus comprising:

a stylet configured to support an infusion tube assembly comprising a bone portal;

a handle drivingly coupled to the stylet by a release mechanism, the release mechanism comprising a bone probe that, in a first configuration, extends generally parallel to the stylet, the release mechanism operative to uncouple the driving coupling between the handle and the stylet upon axial motion of the bone probe relative to the handle;

wherein the stylet and bone probe are movable apart from one another from the first configuration to a second configuration, wherein a spacing between the stylet and the bone probe in a direction transverse to the stylet is greater in the second configuration than in the first configuration.

2. Apparatus according to claim 1 comprising an infusion tube assembly removably supported on the stylet, the infusion tube assembly comprising a tube having a bone portal at a first end thereof and a fitting at another end thereof, the fitting extending transversely outward of the stylet for a distance greater than a spacing between the stylet and the bone probe when the bone probe is in the first configuration.

3. Apparatus according to claim 2 wherein the fitting comprises a Luer fitting.

4. Apparatus according to claim 1 wherein the stylet and bone probe are mounted to a carrier assembly that is received in a bore within the handle and the stylet is pivotally mounted to the carrier assembly.

5. Apparatus according to claim 1 wherein the stylet and bone probe are mounted to a carrier assembly that is received in a bore within the handle and the bone probe is pivotally mounted to the carrier assembly.

6. Apparatus according to claim 1 wherein the bone probe comprises a tip configured such that insertion of the tip into a subject results in a normal force on the tip having a component in a direction away from stylet.

7. Apparatus according to claim 6 wherein the tip has a facet, wherein the bone probe is oriented with the facet facing the stylet.

8. Apparatus according to claim 1 comprising a base coupled to the handle, the base comprising a first guide configured to maintain the stylet and bone probe in the first configuration.

9. Apparatus according to claim 8 wherein the first guide comprises an aperture in a raised portion of the base and the stylet passes through the aperture.

10. Apparatus according to claim 9 wherein:

the stylet and bone probe are mounted to a carrier assembly that is received in a bore within the handle; and

operation of the release mechanism releases the carrier assembly to move in a distal direction within the handle.

11. Apparatus according to claim 9 wherein the base comprises a second guide configured to guide the bone probe when the stylet and bone probe are in the first configuration.

12. Apparatus according to claim 9 wherein the base is releasably coupled to the handle.

13. Apparatus according to claim 12 wherein the base is coupled to the handle by a tubular shield that is telescopic with the handle and extends around the stylet and bone probe.

14. Apparatus according to claim 1 wherein the stylet and bone probe are mounted to a carrier assembly that is received in a bore within the handle wherein operation of the release mechanism releases the carrier assembly to move in a distal direction within the handle.

15. Apparatus according to claim 1 wherein an angle between a longitudinal axis of the stylet and a longitudinal axis of the bone probe is greater in the second configuration than in the first configuration.

16. Apparatus for introducing a bone portal into a subject, the apparatus comprising:

a handle;

a stylet and a probe mounted to a carrier assembly coupled to the handle, the stylet and probe extending proximally from the handle; and

a release mechanism operable by axial force on the probe to allow the carrier assembly to move distally into the handle;

wherein the stylet and probe are movable apart from one another in a direction transverse to a longitudinal axis of the stylet at least when the carrier assembly has been moved distally into the handle.

17. Apparatus according to claim 16 comprising a base apertured to receive ends of the stylet and probe wherein the stylet and probe are movable apart from one another when the end of at least one of the stylet and probe has been retracted clear of the base.

18. Apparatus according to claim 17 wherein the base is detachably coupled to a guide and the guide is telescopically coupled to the handle.

19. Apparatus according to claim 18 comprising an infusion tube assembly removably supported on the stylet, the infusion tube assembly comprising a tube having a bone portal at a first end thereof and a fitting at another end thereof, the fitting extending transversely outward of the stylet for a distance greater than a spacing between the stylet and the probe.

20. Apparatus according to claim 16 wherein the stylet and probe are coupled such that moving the stylet and probe apart from one another results in an increase in an angle between a longitudinal axis of the probe and the longitudinal axis of the stylet.