Systems and methods for lumbar cerebrospinal fluid access and treatment

• US 20100312084A1
• Filed: 08/16/2010
• Published: 12/09/2010
• Est. Priority Date: 08/17/2006
• Status: Active Grant

• Current Assignee: Agathos Holdings LLC
• Original Assignee: Milan Radojicic
• Inventors: Radojicic, Milan
• Granted Patent: US 10,478,555 B2
• Time in Patent Office: Days
• US Class Current: 600/365
• CPC Class Codes: A61B 5/032 Spinal fluid pressure
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/7214 using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths
• CPC Class Codes: A61M 2005/1726 the body parameters being measured at, or proximate to, the infusion site
• CPC Class Codes: A61M 2025/0002 with a pressure sensor at the distal end
• CPC Class Codes: A61M 2025/0057 Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
• CPC Class Codes: A61M 2210/1003 Spinal column
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 27/006 Cerebrospinal drainage; Accessories therefor, e.g. valves
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276
• CPC Class Codes: A61M 5/1428 with manual pumping action
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

A system and method for accessing and treating the cerebrospinal fluid with a multilumen catheter configured for placement along a cerebrospinal fluid pathway and a subcutaneous, dual reservoir/pump. The subcutaneous dual reservoir/pump allows simultaneous, bidirectional cerebrospinal fluid access and cerebrospinal fluid exchange. The two chambers prevent mixing of newly treated and discardable cerebrospinal fluid. The subcutaneous dual reservoir/pump can be used inline with other cerebrospinal fluid devices. The catheter may be coupled with a medical probe that sends a wire to a computational device, which can then send wireless data and receive wireless instructions. A method of assessing cerebrospinal fluid infections is provided, whereby monitoring of the cerebrospinal glucose concentrations with a cerebrospinal glucose sensor and analysis of the data by a computational device can notify a patient or medical provider of an impending infection. This assembly can help better diagnose and treat injury and disease.

Claims

3-1. ) The system of claim 1, wherein the multilumen lumbar catheter is coupled to a medical probe.

8. ) A system of cerebrospinal fluid diversion comprising:

a multilumen catheter coupled to a medical probe; and

a subcutaneous, dual reservoir/pump coupled to a computational device.

9. ) The system of claim 8, wherein the medical probe measures pressure.

10. ) The system of claim 8, wherein the medical probe measures volume.

11. ) The system of claim 8, wherein the medical probe analyzes the cerebrospinal fluid composition.

12. ) The system of claim 8, wherein the subcutaneous, dual reservoir/pump can be placed inline with a programmable valve.

13. ) The system of claim 8, wherein the subcutaneous, dual reservoir/pump can be placed inline with a distal shunt catheter

14. ) A method of detecting cerebrospinal fluid infections in indwelling medical devices, comprising:

monitoring absolute or relative cerebrospinal glucose concentration with a cerebrospinal glucose sensor; and

notifying a patient or medical provider when these values fall outside a norm.