Subdural evacuation port aspiration device

• US 8,343,138 B2
• Filed: 09/15/2011
• Issued: 01/01/2013
• Est. Priority Date: 06/04/1999
• Status: Expired due to Fees

• Current Assignee: Medtronic Xomed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Xomed Incorporated (Medtronic Plc)
• Inventors: Asfora, Wilson T.
• Primary Examiner(s): STIGELL, THEODORE J
• Application Number:
  US13/233,326
• Publication Number:
  US 20120004629A1
• Time in Patent Office: 474 Days
• Field of Search: 604174-180, 604/540, 606/130
• US Class Current: 604/540
• CPC Class Codes: A61B 5/031 Intracranial pressure
• CPC Class Codes: A61M 1/682 bulb-type, e.g. nasal mucus aspirators
• CPC Class Codes: A61M 1/82 Membrane pumps, e.g. bulbs
• CPC Class Codes: A61M 2039/025 through bones or teeth, e.g. through the skull
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 2202/0464 Cerebrospinal fluid
• CPC Class Codes: A61M 2210/0693 Brain, cerebrum
• 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 subdural evacuation port aspiration device including a subdural evacuation portion and a port aspiration portion. The subdural evacuation portion includes a rigid tubular portion having a central axis, a threaded exterior surface, and a pair of wings extending outwardly in substantially opposite directions from the tubular portion. The port aspiration portion includes a first segment and a second segment extending in separate directions from the subdural evacuation portion, the first segment configured to receive an aspiration device and the second segment configured to connect to a negative pressure source. The subdural evacuation portion and the port aspiration portion are uniformly formed as a single rigid unit.

Claims

1. A subdural evacuation port aspiration device, comprising:

a subdural evacuation portion including a rigid tubular portion having a central axis, a threaded exterior surface, and a pair of wings extending outwardly in substantially opposite directions from the tubular portion; and

a port aspiration portion including a first segment and a second segment extending in separate directions from the subdural evacuation portion, the first segment configured to receive an aspiration device and the second segment including annular barbs configured to connect to a negative pressure source;

wherein the subdural evacuation portion, the first segment of the port aspiration portion and the second segment of the port aspiration portion are all fluidly interconnected and open with respect to one another, and

wherein the subdural evacuation portion and the first segment of the port aspiration portion form a common, linear lumen along the central axis.

2. The device of claim 1, wherein the second segment is skewed to the central axis.

3. The device of claim 1, further comprising a cap member removably mountable to the first segment.

4. The device of claim 3, wherein the cap member is removably mountable to the first segment by means of threads.

5. The device of claim 3, wherein the cap member includes a closing structure configured to close the first segment from direct exterior access when the cap member is mounted to the first segment.

6. The device of claim 1, wherein the threaded exterior surface of the subdural evacuation portion is tapered inward at a distal end and is configured for insertion into an opening in, and engagement with, a skull of a patient.

7. A subdural evacuation port aspiration device, comprising:

an evacuation portion including a rigid tubular body having a proximal end and a distal end, a threaded exterior surface formed on the distal end, the threaded exterior surface configured for insertion into an opening in, and engagement with, a skull of a patient, and at least two extensions radially projecting outward from the tubular body in substantially opposite directions;

an aspiration portion extending from the proximal end in a first direction and terminating at a first end away from the proximal end of the evacuation portion; and

a negative pressure portion extending from the proximal end in a second direction skewed from the first direction and terminating at a second end away from the proximal end of the evacuation portion;

wherein the evacuation portion, aspiration portion, and negative pressure portion are rigidly formed as a unified body member having a common multi-directional lumen extending through a full length of each portion.

8. The device of claim 7, wherein the lumen is fluidly open throughout.

9. The device of claim 7, wherein the lumen extending through the evacuation portion and the aspiration portion is linear.

10. The device of claim 7, wherein the lumen extending through the evacuation portion and the aspiration portion has a substantially uniform diameter.

11. The device of claim 7, wherein the aspiration portion includes a threaded section at the first end.

12. The device of claim 11, further comprising a cap member removably mateable with the threaded section.

13. The device of claim 12, wherein mating the cap member along threaded portion provides linear adjustment of an effective length of the aspiration portion.

14. The device of claim 7, further comprising a closing structure configured to resealably close the lumen at the aspiration portion.

15. A subdural evacuation port aspiration device, comprising:

an evacuation portion including a tubular portion forming a threaded exterior surface configured for insertion into an opening in, and engagement with, a skull of a patient, the tubular portion defining a lumen, and a pair of wings extending radially outward from the tubular portion, the tubular portion defining an evacuation lumen;

an aspiration portion for receiving an aspiration device, the aspiration portion forming an aspiration lumen having opposing first and second ends, the aspiration lumen being fluidly open to the evacuation lumen at the second end;

a negative pressure portion for connection to a negative pressure source, the negative pressure portion forming a negative pressure lumen having opposing first and second ends, the negative pressure lumen being fluidly open to the evacuation lumen and the aspiration lumen at the second end of the negative pressure portion; and

an elastomeric closure structure assembled to the aspiration portion and establishing a fluid-tight seal across the aspiration lumen, the elastomeric closing structure configured to be needle-puncturable and resealable;

wherein the first ends are spaced at an angled distance from one another, and

wherein the evacuation portion, the aspiration portion, and the negative pressure portion are uniformly formed as a single rigid body member.

16. The device of claim 15, wherein the negative pressure lumen is fluidly connected to the evacuation lumen apart from the aspiration lumen.

17. The device of claim 15, further comprising a cap member adjustably mateable with the first end of the aspiration portion.