MULTIPLE LUMEN SENSOR ATTACHMENT

• US 20090326519A1
• Filed: 09/09/2009
• Published: 12/31/2009
• Est. Priority Date: 05/04/2004
• Status: Active Grant

• Current Assignee: Integra Lifesciences Corporation (Integra LifeSciences Holdings Corporation)
• Original Assignee: Codman & Shurtleff Incorporated (Johnson & Johnson)
• Inventors: Wilson, Stephen F., Gorhan, Michael C.
• Granted Patent: US 8,308,781 B2
• Time in Patent Office: Days
• US Class Current: 606/1
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• 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 2017/3411 with a plurality of holes, e.g. holes in matrix arrangement
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments
• CPC Class Codes: A61B 2017/3449 whereby the instrument channels merge into one single channel
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside
• CPC Class Codes: A61B 2090/103 Cranial plugs for access to brain
• CPC Class Codes: A61B 5/031 Intracranial pressure
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61M 2039/025 through bones or teeth, e.g. through the skull
• CPC Class Codes: A61M 2039/0264 with multiple inlets or multiple outlets
• CPC Class Codes: A61M 2039/0267 comprising sensors or electrical contacts
• CPC Class Codes: A61M 2210/0693 Brain, cerebrum
• CPC Class Codes: A61M 27/006 Cerebrospinal drainage; Accessories therefor, e.g. valves
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A cranial bolt secured to a skull of a patient includes a threaded portion and a lumen portion. Threaded portion has an inner surface forming a central passageway which extends throughout the threaded portion. The inner surface includes a connector mating with the lumen portion. The threaded portion has an outer surface having a plurality of threads for engaging a hole formed in the patient'"'"'s skull. The lumen portion includes a stem portion that enters the central passageway and engages the mating connector. A fluid tight seal is formed between the inner surface of the threaded portion and the stem portion. At least two lumens are disposed through the stem portion and the base portion. The lumens have a proximal end opening outside the skull and a distal end opening inside the skull. One embodiment includes sensor lumens diverging from the centerline and another allows lumen portion to rotate independent of threaded portion.

Claims

1-16. -16. (canceled)

17. An insertion tool for engaging a threaded portion of a cranial bolt and providing mechanical advantage to increase an amount of torque applied to the threaded portion while inserting the threaded portion into the skull, said insertion tool comprising:

a handle; and

an extending arm, extending from the handle to engage the bolt, the extension arm having recesses to removeably engage wing gaps from a top surface of the threaded portion of the bolt.

18. A method of securing a cranial bolt to a skull of a patient, comprising the steps of:

drilling a hole in the skull;

inserting a self-tapping threaded portion into the hole, wherein the threaded portion includes an inner surface forming a central passageway, a mating connector supported on the inner surface, and an outer surface having a plurality of threads for engaging the hole; and

engaging a lumen portion to the threaded portion, wherein the lumen portion includes a stem part entering the central passageway and engaging the mating connector, a base part of the lumen portion disposed on one end of the stem part opposite the skull, and at least two lumens disposed through the stem part and the base part and wherein a proximal end of the at least two lumens opens outside the skull and a distal end of the at least two lumens opens inside the skull.

19. The method of claim 18, wherein the engaging step is performed after the inserting step.

20. The method of claim 18, wherein the engaging step traps an o-ring between the inner surface of the threaded portion and the stem part to form a fluid tight seal.

21. The method of claim 18, wherein the engaging step is performed before the inserting step.

22. The method of claim 18, further comprising:

removing the lumen portion; and

engaging a second lumen portion.

23. The method of claim 18, wherein the lumen portion is rotatably engaged to the threaded portion.

24. The method of claim 18, further comprising:

prior to the inserting step, engaging an insertion tool with the threaded portion to increase the torque applied to the threaded portion during the insertion step; and

after the inserting step, removing the insertion tool.