System And Method For Intracranial Access And Monitoring

• US 20100241132A1
• Filed: 06/02/2010
• Published: 09/23/2010
• Est. Priority Date: 05/30/2003
• Status: Active Grant

• Current Assignee: IRRAS USA, Inc. (Irras AB)
• Original Assignee: InnerSpace Neuro Solutions, Inc. (Irras AB)
• Inventors: Gerg, James, Bobo, Donald E. SR.
• Granted Patent: US 9,232,921 B2
• Time in Patent Office: Days
• US Class Current: 606/108
• CPC Class Codes: A61B 17/1695 Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• 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 2090/033 Abutting means, stops, e.g. abutting on tissue or skin
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/103 Cranial plugs for access to brain
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/031 Intracranial pressure
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/6864 Burr holes
• CPC Class Codes: A61B 90/10 for stereotaxic surgery, e.g. frame-based stereotaxis
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints

Abstract

A system and method for intracranial access is disclosed. In particular, a drill stop is shown providing a way to control the penetration of a drill bit as an access hole into the brain is being formed. Access to a desired location is achieved using a catheter guide device. Also disclosed is a mechanism by which multiple diagnostic and treatment devices can be placed at a desired location in brain tissue without the need for more than one access hole. A drainage catheter is disclosed with a mechanism to allow both drainage and to allow intracranial pressure measurement.

Claims

1. A method of placing a probe at a target location of a patient'"'"'s cranial space comprising:

creating an access hole in a cranial bone of said patient;

placing a probe platform into said access hole;

introducing a probe along an axis of said probe platform into said cranial space through said probe platform; and

,

urging said probe away from said axis as said probe approaches said target location.

2. A method according to claim 1, wherein the introducing of said probe into said cranial space includes introducing said probe into a guide tube of said probe platform.

3. A method according to claim 2, wherein the introducing of said probe into said cranial space includes introducing said probe into a guide tube wherein a distal end of said guide tube is curved away from said axis.

4. A method according to claim 1, wherein the urging of said distal end of said probe away from said axis includes urging said distal end at an angle of about sixty degrees from said axis.

5. A method according to claim 1, wherein the introducing of said probe through said probe platform includes placing said probe on an introducer and inserting said introducer into said probe platform.

6. A method according to claim 5, wherein the inserting of said introducer includes inserting an introducer that has a curved shape at its distal when in a normal state.

7. A method according to claim 1, further comprising, introducing a drainage catheter into said cranial space through said probe platform.

8. A method according to claim 1, further comprising, introducing a second probe into said cranial space through said probe platform.

9. A method according to claim 1, wherein the introducing of a probe includes introducing an oxygen probe.

10. A method according to claim 9, wherein the target location is undisturbed tissue located in said cranial space.