Methods and devices for localizing the blood mass of an intracerebral hematoma

• US 10,085,649 B1
• Filed: 08/17/2016
• Issued: 10/02/2018
• Est. Priority Date: 08/17/2015
• Status: Active Grant

• Current Assignee: Rebound Therapeutics Corporation
• Original Assignee: Rebound Therapeutics Corporation
• Inventors: Valko, Jeffrey J., Henson, Michael R.
• Primary Examiner(s): Natnithithadha, Navin
• Application Number:
  US15/239,722
• Time in Patent Office: 776 Days
• Field of Search: 600309, 600345-366
• CPC Class Codes: A61B 1/00087 Tools A61B17/00234 takes precedence
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/00188 with focusing or zooming features
• CPC Class Codes: A61B 1/053 being detachable
• CPC Class Codes: A61B 1/06 with illuminating arrangements
• CPC Class Codes: A61B 1/313 for introducing through surgical openings, e.g. laparoscopes
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 2090/3614 using optical fibre
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/6848 Needles
• CPC Class Codes: A61B 5/6868 Brain
• CPC Class Codes: A61B 5/6886 Monitoring or controlling distance between sensor and tissue
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

Devices as described herein for localizing an intracerebral hematoma or blood mass in brain tissue include a cannula and one or more sensor wires operably connected between a glucose meter and one or more glucose sensors for determining the location and margins of an intracerebral blood mass.

Claims

1. A method for localizing a blood mass in a patient'"'"'s brain comprising the steps:

providing a glucose meter;

providing a cannula having a distal end and a proximal end and a lumen;

providing a first sensor wire having a distal end and a proximal end and the proximal end of the first sensor wire is operatively connected to the glucose meter and the distal end of the first sensor wire is operatively connected to a first glucose sensor;

inserting the distal end of the first sensor wire into the lumen;

inserting the distal end of the cannula and the first sensor wire and the first glucose sensor into the patient'"'"'s brain;

advancing the first sensor wire until the glucose meter indicates the first glucose sensor is within the blood mass;

continuing to advance the first sensor wire until the glucose meter indicates that the first glucose sensor has passed out of the blood mass;

advancing the cannula over the first sensor wire until the distal end of the cannula is within the blood mass; and

removing the blood mass.

2. The method of claim 1 wherein the first sensor wire and first glucose sensor are withdrawn from the cannula after advancing the cannula over the first sensor wire and before the step of removing the blood mass.

3. A method for localizing a blood mass in a patient'"'"'s brain comprising the steps:

providing a glucose meter;

providing a cannula having a distal end and a proximal end and a lumen;

providing a first sensor wire having a distal end and a proximal end and the proximal end of the first sensor wire is operatively connected to the glucose meter and the distal end of the first sensor wire is operatively connected to a first glucose sensor;

providing a second sensor wire having a distal end and a proximal end and the proximal end of the second sensor wire is operatively connected to the glucose meter and the distal end of the second sensor wire is operatively connected to a second glucose sensor;

inserting the distal end of the first and second sensor wires into the lumen;

inserting the distal end of the cannula and the first and second sensor wires and the first and second glucose sensors into the patient'"'"'s brain;

advancing the first sensor wire until the glucose meter indicates the first glucose sensor is within the blood mass;

advancing the second sensor wire until the glucose meter indicates that the second glucose sensor has passed out of the blood mass;

advancing the cannula over the first and second sensor wires until the distal end of the cannula is between the first and second glucose sensors; and

removing the blood mass.

4. The method of claim 3 wherein the first and second sensor wires and the first and second glucose sensors are withdrawn from the cannula after advancing the cannula over the first and second sensor wires and before the step of removing the blood mass.