Patents Assigned to Cadwell Laboratories, Inc.
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Patent number: 12178606Abstract: 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: GrantFiled: May 5, 2021Date of Patent: December 31, 2024Assignee: Cadwell Laboratories, Inc.Inventors: Justin Scott, John Cadwell
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Patent number: 12109158Abstract: 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: GrantFiled: March 7, 2023Date of Patent: October 8, 2024Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 11949188Abstract: 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: GrantFiled: October 15, 2021Date of Patent: April 2, 2024Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 11777243Abstract: 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: GrantFiled: August 24, 2021Date of Patent: October 3, 2023Assignee: Cadwell Laboratories, Inc.Inventors: Richard A. Villarreal, David Lee Jepsen
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Patent number: 11602470Abstract: 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: GrantFiled: February 26, 2021Date of Patent: March 14, 2023Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 11529107Abstract: 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: GrantFiled: November 27, 2019Date of Patent: December 20, 2022Assignee: Cadwell Laboratories, Inc.Inventors: Wayne Dearing, Michael Schulz, Alison Hull, Wes Hatley
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Patent number: 11517245Abstract: 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: GrantFiled: October 29, 2019Date of Patent: December 6, 2022Assignee: Cadwell Laboratories, Inc.Inventors: Richard A. Villarreal, Ivan Amaya
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Patent number: 11517239Abstract: 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: GrantFiled: April 4, 2019Date of Patent: December 6, 2022Assignee: Cadwell Laboratories, Inc.Inventors: Michal Holub, David Jensen, Craig Cooper
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Patent number: 11128076Abstract: 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: GrantFiled: January 21, 2020Date of Patent: September 21, 2021Assignee: Cadwell Laboratories, Inc.Inventors: Richard A. Villarreal, David Lee Jepsen
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Patent number: 11026627Abstract: 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: GrantFiled: September 12, 2018Date of Patent: June 8, 2021Assignee: Cadwell Laboratories, Inc.Inventors: Justin Scott, John Cadwell
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Patent number: 10959895Abstract: 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: GrantFiled: April 5, 2019Date of Patent: March 30, 2021Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 10945621Abstract: 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: GrantFiled: July 3, 2018Date of Patent: March 16, 2021Assignee: Cadwell Laboratories, Inc.Inventor: John Cadwell
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Patent number: 10660567Abstract: 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: GrantFiled: July 26, 2017Date of Patent: May 26, 2020Assignee: Cadwell Laboratories, Inc.Inventor: John A Cadwell
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Patent number: 10433793Abstract: 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: GrantFiled: March 25, 2016Date of Patent: October 8, 2019Assignee: Cadwell Laboratories, Inc.Inventors: Alison Rhoades, Wayne Dearing, Christopher Rickard
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Patent number: 10418750Abstract: 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: GrantFiled: February 20, 2018Date of Patent: September 17, 2019Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 10292883Abstract: 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: GrantFiled: April 13, 2017Date of Patent: May 21, 2019Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villarreal
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Patent number: 10238467Abstract: 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: GrantFiled: December 12, 2016Date of Patent: March 26, 2019Assignee: Cadwell Laboratories, Inc.Inventor: John A Cadwell
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Patent number: 10098585Abstract: 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: GrantFiled: March 12, 2014Date of Patent: October 16, 2018Assignee: Cadwell Laboratories, Inc.Inventors: Justin Scott, John Cadwell
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Patent number: 10039461Abstract: 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: GrantFiled: February 29, 2016Date of Patent: August 7, 2018Assignee: Cadwell Laboratories, Inc.Inventor: John Cadwell
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Patent number: 9935395Abstract: 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: GrantFiled: January 23, 2017Date of Patent: April 3, 2018Assignee: Cadwell Laboratories, Inc.Inventors: David Lee Jepsen, Richard A. Villareal