Cerebrospinal fluid drainage

• US 9,295,821 B2
• Filed: 12/13/2013
• Issued: 03/29/2016
• Est. Priority Date: 07/02/2008
• Status: Expired due to Fees

• Current Assignee: Christoph Miethke, Ullrich Meier
• Original Assignee: Ullrich Meier
• Inventors: Miethke, Christoph, Meier, Ullrich
• Primary Examiner(s): Wiest, Philip R
• Assistant Examiner(s): KLEIN, BENJAMIN JACOB
• Application Number:
  US14/106,145
• Publication Number:
  US 20140188032A1
• Time in Patent Office: 837 Days
• US Class Current: 1/1
• CPC Class Codes: A61M 2202/0464 Cerebrospinal fluid
• CPC Class Codes: A61M 2210/0693 Brain, cerebrum
• CPC Class Codes: A61M 27/006 Cerebrospinal drainage; Accessories therefor, e.g. valves

Abstract

A cerebrospinal fluid drainage. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Claims

1. A method of draining cerebrospinal fluid comprising:

installing, in a patient having excess cerebrospinal fluid in his or her cranial cavity, a cerebrospinal fluid drainage device comprising at least three tubes and a distributor that connects said at least three tubes, wherein said at least three tubes comprise a supply tube, a first discharge tube, and a second discharge tube;

draining cerebrospinal fluid from the head of a patient through said supply tube toward said distributor;

shifting a rotary device of said distributor to a first position, and thereby flowing cerebrospinal fluid from said supply tube, through said distributor, and to said first discharge tube, and blocking flow of cerebrospinal fluid to said second discharge tube; and

upon formation of a blockage of flow in said first discharge tube, shifting said rotary device to a second position, and thereby flowing cerebrospinal fluid from said supply tube, through said distributor, and to said second discharge tube, and blocking flow of cerebrospinal fluid to said first discharge tube.

2. The method according to claim 1, wherein said method further comprises shifting said rotary device to a third position, and thereby blocking flow of cerebrospinal fluid to both said first discharge tube and said second discharge tube.

3. The method according to claim 2, wherein each of said steps of blocking flow of cerebrospinal fluid comprises placing a portion of said rotary device at an opening in a housing of said distributor that houses said rotary device, to which opening is connected one of said discharge tubes, and thereby totally or partially sealing said opening in said housing to minimize or prevent flow of cerebrospinal fluid therethrough.

4. A cerebrospinal fluid drainage device for performing the method according to claim 1, comprising:

at least three tubes comprising a supply tube configured to receive cerebrospinal fluid, a first discharge tube configured to discharge cerebrospinal fluid, and a second discharge tube configured to discharge cerebrospinal fluid;

a distributor configured to control flow of cerebrospinal fluid;

said at least three tubes being connected by said distributor;

said distributor comprises a rotary device which is shiftable between;

a first position in which said rotary device permits flow of cerebrospinal fluid from said supply tube to said first discharge tube, and blocks flow to said second discharge tube; and

a second position in which said rotary device permits flow of cerebrospinal fluid from said supply tube to said second discharge tube, and blocks flow to said first discharge tube; and

said rotary device comprising magnets or magnetic portions configured to be engaged by an adjusting device to permit shifting of said rotary device by magnetic force.

5. The device according to claim 4, wherein said distributor comprises a substantially flat housing to permit installation completely under the skin of a patient.

6. The device according to claim 5, wherein said device further comprises an external adjusting unit configured to provide a magnetic adjusting force through the skin of a patient to shift said rotary device.

7. The device according to claim 4, wherein said device further comprises an external adjusting unit configured to provide a magnetic adjusting force through the skin of a patient to shift said rotary device.

8. The device according to claim 4, wherein said rotary device is additionally shiftable to a third position in which said rotary device blocks flow of cerebrospinal fluid to both said first discharge tube and said second discharge tube.

9. The device according to claim 8, wherein:

said distributor comprises a housing which houses said rotary device;

said housing comprises openings which connect said tubes to the interior of said housing; and

said rotary device is configured to totally or partially seal one or more of said openings in said housing to control flow of cerebrospinal fluid to said discharge tubes.

10. The cerebrospinal fluid drainage device for performing the method according to claim 1, comprising:

at least three tubes comprising a supply tube configured to receive cerebrospinal fluid, a first discharge tube configured to discharge cerebrospinal fluid, and a second discharge tube configured to discharge cerebrospinal fluid;

a distributor configured to control flow of cerebrospinal fluid;

said at least three tubes being connected by said distributor;

said distributor comprises a rotary device which is shiftable between;

a first position in which said rotary device permits flow of cerebrospinal fluid from said supply tube to said first discharge tube, and blocks flow to said second discharge tube; and

a second position in which said rotary device permits flow of cerebrospinal fluid from said supply tube to said second discharge tube, and blocks flow to said first discharge tube; and

an external adjusting unit configured to provide a magnetic adjusting force through the skin of a patient to shift said rotary device.

11. The device according to claim 10, wherein said device further comprises an external adjusting unit configured to provide a magnetic adjusting force through the skin of a patient to shift said movable distributor.

12. A method of draining cerebrospinal fluid comprising:

installing, in a patient having excess cerebrospinal fluid in his or her cranial cavity, a cerebrospinal fluid drainage device comprising at least three tubes and a valve that connects said at least three tubes, wherein said at least three tubes comprise a first supply tube, a second supply tube, and a discharge tube;

draining cerebrospinal fluid from the head of a patient through said supply tubes toward said valve;

shifting a movable distributor of said valve to a first position, and thereby flowing cerebrospinal fluid from said first supply tube, through said valve, and to said discharge tube, and blocking flow of cerebrospinal fluid from said second supply tube; and

upon formation of a blockage of flow in said first supply tube, shifting said movable distributor to a second position, and thereby flowing cerebrospinal fluid from said second supply tube, through said valve, and to said discharge tube, and blocking flow of cerebrospinal fluid from said first supply tube.

13. The method according to claim 12, wherein said method further comprises shifting said movable distributor to a third position, and thereby blocking flow of cerebrospinal fluid from both said first supply tube and said second supply tube.

14. The method according to claim 13, wherein each of said steps of blocking flow of cerebrospinal fluid comprises placing a portion of said movable distributor at an opening in a housing of said valve that houses said movable distributor, to which opening is connected one of said supply tubes, and thereby totally or partially sealing said opening in said housing to minimize or prevent flow of cerebrospinal fluid therethrough.

15. A device for draining cerebrospinal fluid comprising:

at least three tubes comprising a first supply tube configured to receive cerebrospinal fluid, a second supply tube configured to receive cerebrospinal fluid, and a discharge tube configured to discharge cerebrospinal fluid;

a valve configured to control flow of cerebrospinal fluid;

said at least three tubes being connected by said valve;

said valve comprises a movable distributor which is shiftable between;

a first position in which said movable distributor permits flow of cerebrospinal fluid from said first supply tube to said discharge tube, and blocks flow from said second supply tube; and

a second position in which said movable distributor permits flow of cerebrospinal fluid from said second supply tube to said discharge tube, and blocks flow from said first supply tube; and

said movable distributor comprising magnets or magnetic portions configured to be engaged by an adjusting device to permit shifting of said movable distributor by magnetic force.

16. The device according to claim 15, wherein said movable distributor is additionally shiftable to a third position in which said movable distributor blocks flow of cerebrospinal fluid from both said first supply tube and said second supply tube.

17. The device according to claim 15, wherein said valve distributor comprises a substantially flat housing to permit installation completely under the skin of a patient.

18. The device according to claim 15, wherein said device further comprises an external adjusting unit configured to provide a magnetic adjusting force through the skin of a patient to shift said movable distributor.