IP Library Granted Patent US 8,731,654
Granted Patent B2
US 8,731,654 · App. 13/364,444 · Granted May 20, 2014

System, method, apparatus, device and computer program product for automatically detecting positioning effect

Inventors: Samuel Johnson (Harrisburg, PA); Richard A. O'Brien (Westminster, MD)
Assignee: Safeop Surgical, Inc.
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Quick Facts
Patent No.
US 8,731,654
App. No.
13/364,444
Granted
May 20, 2014
Kind
B2
Abstract

An automated system, method, apparatus, device and/or computer program product for detecting positioning effect is set forth, the apparatus according to an exemplary embodiment may include an output operable to couple to one or more stimulating electrodes to stimulate one or more peripheral nerves of the patient, an input operable to couple to one or more recording electrodes to record resultant electrical waveforms generated by a nervous system of a patient in response to the stimulating module, and one or more processors operable to identify the positioning effect based on the resultant electrical waveforms.

Claims (50)

1. A method of identifying positioning effect in a patient, the method comprising:

positioning a patient in a position for medical care or treatment;

stimulating one or more peripheral nerves of the patient with one or more electrical pulses from at least one stimulating electrode;

recording with a computer resultant electrical waveforms generated by a nervous system of the patient in response to the electrical pulses using at least one recording electrode;

detecting changes in the resultant electrical waveforms; and

analyzing the detected changes in the resultant electrical waveforms to automatically identify the positioning effect, the positioning effect comprising an immediate or potential injury to the one or more peripheral nerves due to stress associated with the position of the patient.

2. The method of claim 1 , wherein said at least one stimulating electrode is coupled to at least one of:

an arm of the patient;

a leg of the patient;

an ulnar nerve of the patient;

a median nerve of the patient; or

a posterior tibial nerve of the patient.

3. The method of claim 1 , wherein said at least one recording electrode is coupled to at least one of:

a trunk of the patient;

an Erb's point of the patient;

a head of the patient; or

a neck of the patient.

4. The method of claim 1 , wherein the resultant electrical waveforms are somatosensory evoked potential waveforms.

5. The method of claim 1 , wherein said identifying comprises at least one of:

comparing, by the at least one computing device, information based on the resultant electrical waveforms to information from an anesthesia machine to determine when changes in the resultant electrical waveforms are due to anesthesia; or

comparing, by the at least one computing device, information based on the resultant electrical waveforms to information from a blood pressure machine to determine when changes in the resultant electrical waveforms are due to blood pressure.

6. The method of claim 1 , further comprising:

determining how to reduce the positioning effect based on a position of a table.

7. The method of claim 1 , further comprising:

providing information based on the positioning effect to a table.

8. The method of claim 1 , further comprising:

providing information to a table to at least partially reposition said table to reduce the positioning effect.

9. The method of claim 1 , further comprising:

adjusting a position of the patient based on the positioning effect using an electromechanism of a table.

10. The method of claim 1 , further comprising:

alerting a user to the positioning effect using at least one of:

a notification;

an alert;

a communication;

an indication; or

an alarm.

11. The method of claim 1 , further comprising:

displaying information based on the resultant electrical waveforms on at least one display.

12. The method of claim 1 , further comprising:

receiving a user input regarding the accuracy of the resultant electrical waveforms.

13. The method of claim 1 , further comprising identifying a particular nerve structure affected by the positioning effect.

14. The method of claim 1 , further comprising recommending changes in the position of the patient to ameliorate the positioning effect.

15. The method of claim 1 , further comprising correcting the positioning effect by providing for movement of a table on which the patient is positioned.

16. The method of claim 1 , wherein the medical care or treatment comprises cardiac surgery, spine surgery, or scoliosis surgery.

17. A method of automatically identifying positioning effect in a patient placed in a position for medical care or treatment, performed fully by an evoked potential detection computer, the method comprising:

generating one or more electrical pulses for transmission to at least one stimulating electrode to stimulate one or more peripheral nerves of the patient, wherein the at least one stimulating electrode is attached to the patient over the one or more peripheral nerves;

recording resultant electrical waveforms generated by a nervous system of the patient in response to the electrical pulses, the resultant electrical waveforms received from at least one recording electrode attached to the patient over the spine, neck, or head;

detecting a change in latency, amplitude, or morphology of the resultant electrical waveforms;

comparing the resultant electrical waveforms from two or more limbs of the patient to determine if the detected change is caused by a systemic effect; and

analyzing the detected change in the resultant electrical waveforms to automatically identify the positioning effect, the positioning effect comprising an immediate or potential injury to the one or more peripheral nerves of the patient due to tension or compression on the one or more peripheral nerves caused by the position of the patient.

Assignments (9)
CONFIRMATORY GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded May 12, 2026
From: ALPHATEC SPINE, INC.; SAFEOP SURGICAL, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 075560/0884 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 62310/0001 Recorded May 1, 2026
From: MIDCAP FUNDING IV TRUST, AS AGENT
To: ALPHATEC SPINE, INC.; SAFEOP SURGICAL, INC.
Reel/Frame 075316/0001 →
RELEASE OF PATENT SECURITY INTEREST AT REEL/FRAME NO. 62681/0020 Recorded May 1, 2026
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
To: ALPHATEC SPINE, INC.; SAFEOP SURGICAL, INC.
Reel/Frame 075385/0575 →
SECURITY INTEREST Recorded Feb 7, 2023
From: ALPHATEC SPINE, INC.; SAFEOP SURGICAL, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 062681/0020 →
SECURITY INTEREST Recorded Jan 6, 2023
From: ALPHATEC SPINE, INC.; SAFEOP SURGICAL, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 062310/0001 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 48101/0635 Recorded Aug 11, 2021
From: SQUADRON MEDICAL FINANCE SOLUTIONS LLC
To: SAFEOP SURGICAL, INC.
Reel/Frame 057177/0718 →
SECURITY INTEREST Recorded Nov 9, 2018
From: SAFEOP SURGICAL, INC.
To: SQUADRON MEDICAL FINANCE SOLUTIONS LLC
Reel/Frame 048101/0635 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2014
From: JOHNSON, SAMUEL; O'BRIEN, RICHARD A.
To: IMPULSE MONITORING, INC.
Reel/Frame 032599/0037 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2014
From: IMPULSE MONITORING, INC.
To: SAFEOP SURGICAL, INC.
Reel/Frame 032599/0045 →
Continuity (3)
Division 12620384 · Nov 17, 2009
Provisional Application 61185441 · Jun 9, 2009
Related Publication 20120136276A1 · May 31, 2012