Patents Assigned to Cadwell Laboratories, Inc.
  • Patent number: 11949188
    Abstract: Systems, devices and methods are described for connecting multiple electrical connectors as a group with corresponding receiving sockets, or connection ports, in a medical device. A multiple electrical connector plate acts as an intermediate connector for quickly engaging or disengaging a group of electrodes with the corresponding device as a single unit. The connection plate includes multiple sections that allow a connector to be snapped securely in place on the connection plate such that the connector does not pull or push free from its snapped in location, resulting in group handling of electrical connectors that is less time consuming, reduces errors and positively impacts the quality of medical care.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: April 2, 2024
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villarreal
  • Patent number: 11777243
    Abstract: A connector receptacle for connecting with a corresponding connector plug coupled with electrodes being used for performing EMG procedure on a patient is provided. The receptacle includes a first ball bearing pressing against a first end of a housing of the plug and, preferably, a second ball bearing pressing against a first end of the housing of the plug when the plug is connected to the receptacle for exerting a retention force against the plug. The first and the second ball bearings are pressed against the first and the second ends respectively by using a spring force generated, for example, by a retention band.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: October 3, 2023
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Richard A. Villarreal, David Lee Jepsen
  • Patent number: 11602470
    Abstract: Systems, devices and methods are described for mounting medical equipment on IV poles, bed rails and other supporting structures in medical facilities including operating rooms and critical care sections. A system including a mounting hanger and corresponding equipment housing is disclosed that allows quick mounting and dismounting of equipment from a supporting structure. The novel structural design of mounting hanger including a symmetrical t-slot feature and a plunger lock allows a piece of equipment to be mounted on a supporting structure in multiple orientations as per the requirement which allows a user to optimize the placement of equipment in the medical environment.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: March 14, 2023
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villarreal
  • Patent number: 11529107
    Abstract: Computer-implemented methods of enabling an on-the-fly generation of at least one user-defined montage from EEG electrodes positioned in a patient's brain, on the patient's brain and/or on the patient's scalp. The methods includes generating a graphical interface to display a view of the patient's brain and/or scalp overlaid with the EEG electrodes, each of which is uniquely identified with reference to its position in the patient's brain, on the patient's brain and/or on the patient's scalp, displaying a tool within the graphical interface for selecting at least one electrode from the displayed EEG electrodes, indicating a reference electrode corresponding to the selected electrode, accessing EEG signals corresponding to the electrode and the reference electrode, and generating another graphical interface to display an EEG trace indicative of a comparison of EEG signals of the electrode and the reference electrode.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: December 20, 2022
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Wayne Dearing, Michael Schulz, Alison Hull, Wes Hatley
  • Patent number: 11517245
    Abstract: A system for monitoring includes: multiple EEG sensors spatially positioned on a layer of tissue for capturing EEG signals of a patient; multiple amplifiers coupled with the EEG sensors for amplifying the captured signals; and a low frequency oscillator for generating a synchronizing signal which is distributed to the amplifiers for synchronizing the digitization of the captured signals; wherein each amplifier includes: a voltage controlled oscillator for an adjustable frequency reference; an analog to digital converter for converting the amplified signal to a digital value; and a microcontroller for controlling the frequency of the voltage controlled oscillator and operation of the analog to digital converter by using the synchronizing signal.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 6, 2022
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Richard A. Villarreal, Ivan Amaya
  • Patent number: 11517239
    Abstract: The present specification describes systems and methods that enable the automatic detection, analysis and calculation of various processes and parameters associated with electromyography. The methods of the present specification include the automated modulation of analytical or recording states based on the nature of the signal, optimal reference fiber selection, modulating a trigger level, and determining firing parameters.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: December 6, 2022
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Michal Holub, David Jensen, Craig Cooper
  • Patent number: 11128076
    Abstract: A connector receptacle for connecting with a corresponding connector plug coupled with electrodes being used for performing EMG procedure on a patient is provided. The receptacle includes a first ball bearing pressing against a first end of a housing of the plug and, preferably, a second ball bearing pressing against a first end of the housing of the plug when the plug is connected to the receptacle for exerting a retention force against the plug. The first and the second ball bearings are pressed against the first and the second ends respectively by using a spring force generated, for example, by a retention band.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: September 21, 2021
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Richard A. Villarreal, David Lee Jepsen
  • Patent number: 11026627
    Abstract: Systems, devices and methods are provided for neuromonitoring, particularly neuromonitoring to reduce the risks of contacting or damaging nerves or causing patient discomfort during and after surgical procedures, including spinal surgeries. The neuromonitoring procedures include monitoring for the presence of or damage to sensory nerves, and optionally includes additional monitoring for motor nerves. In some systems, including systems that monitor for both sensory and motor nerves, components of the monitoring systems (e.g., stimulating electrodes and response sensors), may be combined with one or more surgical instruments. The systems, devices, and methods provide for pre-surgical assessment of neural anatomy and surgical planning, intraoperative monitoring of nerve condition, and post-operative assessment of nerve position and health.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 8, 2021
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Justin Scott, John Cadwell
  • Patent number: 10959895
    Abstract: Systems, devices and methods are described for mounting medical equipment on IV poles, bed rails and other supporting structures in medical facilities including operating rooms and critical care sections. A system including a mounting hanger and corresponding equipment housing is disclosed that allows quick mounting and dismounting of equipment from a supporting structure. The novel structural design of mounting hanger including a symmetrical t-slot feature and a plunger lock allows a piece of equipment to be mounted on a supporting structure in multiple orientations as per the requirement which allows a user to optimize the placement of equipment in the medical environment.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: March 30, 2021
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villarreal
  • Patent number: 10945621
    Abstract: Systems, devices, and methods are described for neuromonitoring. A minimum stimulus signal required to elicit a threshold neuromuscular response is determined by delivery of stimulus signals to tissue and detection of neuromuscular responses in muscle tissue. The strength of the delivered stimulus signals is varied, for example by adjusting the current amplitude or pulse width of the signals, and muscle responses are measure, for example by detecting EMG signals. The delivered stimuli and corresponding responses are then used to determine a stimulation threshold. The stimulation threshold may be used to indicate at least one of nerve proximity and pedicle integrity.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: March 16, 2021
    Assignee: Cadwell Laboratories, Inc.
    Inventor: John Cadwell
  • Patent number: 10660567
    Abstract: An apparatus, system, and method are disclosed for mapping the location of a nerve. The apparatus includes at least one stimulation module, a stimulation detection module, a distance module, and a mapping module. The stimulation module stimulates a nerve with an electrical stimulation current from at least one stimulation electrode. A stimulation detection module detects a muscle reaction resulting from stimulation of the nerve by the at least one stimulation electrode. The distance module uses information from the at least one stimulation electrode and from the stimulation detection module to calculate a distance between the at least one stimulation electrode and the nerve. The mapping module maps a location on the nerve using at least two distances calculated by the distance module and position information of the at least one stimulation electrode for each of the at least two distances calculated.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 26, 2020
    Assignee: Cadwell Laboratories, Inc.
    Inventor: John A Cadwell
  • Patent number: 10433793
    Abstract: Methods and systems are disclosed for a guidance application that allows a practitioner to easily correlate a fluctuation in any channel of a plurality of channels constituting received electroencephalography (“EEG”) data to a particular physical manifestation. For example, the guidance application automatically synchronizes incoming EEG data to the physical manifestations and allows for automatic retrieval a portion of video data (e.g., of the physical manifestation) that corresponds to a selected portion of EEG data.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: October 8, 2019
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Alison Rhoades, Wayne Dearing, Christopher Rickard
  • Patent number: 10418750
    Abstract: Systems, devices and methods are described for connecting multiple electrical connectors as a group with corresponding receiving sockets, or connection ports, in a medical device. A multiple electrical connector plate acts as an intermediate connector for quickly engaging or disengaging a group of electrodes with the corresponding device as a single unit. The connection plate includes multiple sections that allow a connector to be snapped securely in place on the connection plate such that the connector does not pull or push free from its snapped in location, resulting in group handling of electrical connectors that is less time consuming, reduces errors and positively impacts the quality of medical care.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 17, 2019
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villarreal
  • Patent number: 10292883
    Abstract: Systems, devices and methods are described for mounting medical equipment on IV poles, bed rails and other supporting structures in medical facilities including operating rooms and critical care sections. A system including a mounting hanger and corresponding equipment housing is disclosed that allows quick mounting and dismounting of equipment from a supporting structure. The novel structural design of mounting hanger including a symmetrical t-slot feature and a plunger lock allows a piece of equipment to be mounted on a supporting structure in multiple orientations as per the requirement which allows a user to optimize the placement of equipment in the medical environment.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: May 21, 2019
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villarreal
  • Patent number: 10238467
    Abstract: Systems, devices and methods for advanced electrode management in neurological monitoring applications include receiving sockets configured to receive connectors having groups of electrodes. The physician is not required to manually map each electrode with its corresponding input channel. Electrodes are coupled to the corresponding input channels in groups through connectors having a unique identification (ID). The system is configured to read the unique ID of each connector and establish its identity. Based on the ID, the system configures itself to automatically correlate or associate each electrode with its corresponding input channel when the connectors are first inserted into the receiving sockets, and again if the connectors are removed and re-inserted into different positions in the receiving sockets, to insure the electrodes are always mapped to the same input channels.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 26, 2019
    Assignee: Cadwell Laboratories, Inc.
    Inventor: John A Cadwell
  • Patent number: 10098585
    Abstract: Systems, devices and methods are provided for neuromonitoring, particularly neuromonitoring to reduce the risks of contacting or damaging nerves or causing patient discomfort during and after surgical procedures, including spinal surgeries. The neuromonitoring procedures include monitoring for the presence of or damage to sensory nerves, and optionally includes additional monitoring for motor nerves. In some systems, including systems that monitor for both sensory and motor nerves, components of the monitoring systems (e.g., stimulating electrodes and response sensors), may be combined with one or more surgical instruments. The systems, devices, and methods provide for pre-surgical assessment of neural anatomy and surgical planning, intraoperative monitoring of nerve condition, and post-operative assessment of nerve position and health.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 16, 2018
    Assignee: Cadwell Laboratories, Inc.
    Inventors: Justin Scott, John Cadwell
  • Patent number: 10039461
    Abstract: Systems, devices, and methods are described for neuromonitoring. A minimum stimulus signal required to elicit a threshold neuromuscular response is determined by delivery of stimulus signals to tissue and detection of neuromuscular responses in muscle tissue. The strength of the delivered stimulus signals is varied, for example by adjusting the current amplitude or pulse width of the signals, and muscle responses are measure, for example by detecting EMG signals. The delivered stimuli and corresponding responses are then used to determine a stimulation threshold. The stimulation threshold may be used to indicate at least one of nerve proximity and pedicle integrity.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: August 7, 2018
    Assignee: Cadwell Laboratories, Inc.
    Inventor: John Cadwell
  • Patent number: 9935395
    Abstract: Systems, devices and methods are described for connecting multiple electrical connectors as a group with corresponding receiving sockets, or connection ports, in a medical device. A multiple electrical connector plate acts as an intermediate connector for quickly engaging or disengaging a group of electrodes with the corresponding device as a single unit. The connection plate includes multiple sections that allow a connector to be snapped securely in place on the connection plate such that the connector does not pull or push free from its snapped in location, resulting in group handling of electrical connectors that is less time consuming, reduces errors and positively impacts the quality of medical care.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: April 3, 2018
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David Lee Jepsen, Richard A. Villareal
  • Patent number: 9295401
    Abstract: Systems, devices, and methods are described for neuromonitoring. A minimum stimulus signal required to elicit a threshold neuromuscular response is determined by delivery of stimulus signals to tissue and detection of neuromuscular responses in muscle tissue. The strength of the delivered stimulus signals is varied, for example by adjusting the current amplitude or pulse width of the signals, and muscle responses are measure, for example by detecting EMG signals. The delivered stimuli and corresponding responses are then used to determine a stimulation threshold. The stimulation threshold may be used to indicate at least one of nerve proximity and pedicle integrity.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 29, 2016
    Assignee: CADWELL LABORATORIES, INC.
    Inventor: John Cadwell
  • Patent number: 7374448
    Abstract: A locking mechanism for electrical connectors is disclosed. The locking mechanism comprises one or more sockets affixed to one of a pair of electrical connectors, e.g., a male electrical connector, and one or more mating studs affixed to the other of the pair of electrical connectors, e.g., a female electrical connector. The sockets lockingly engage the studs when the pair of electrical connectors are connected. The sockets are affixed to the male electrical by ribs, which form part of elongate socket fittings that also include the sockets, and socket fitting retainers. The studs are affixed to the female electrical connector by threads.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: May 20, 2008
    Assignee: Cadwell Laboratories, Inc.
    Inventors: David L Jepsen, Christopher Lisle Bolkan, Richard A Villarreal, Arlee Clayton Swensen