Patents by Inventor Christopher N. Daly

Christopher N. Daly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10981012
    Abstract: According to one aspect of the present invention, there is provided an implantable medical device comprising: an implantable component, comprising an implantable memory module, configured to receive and store recipient-specific operating parameters in the implantable memory module, an external component, comprising an external memory module, configured to communicate with the implantable component to receive the recipient-specific operating parameters, and to configure the external component using the recipient-specific operating parameters, wherein the implantable medical device is configured to transfer the recipient-specific operating parameters upon operationally coupling the implantable component with the external component.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 20, 2021
    Assignee: Cochlear Limited
    Inventor: Christopher N. Daly
  • Patent number: 8454529
    Abstract: The invention provides a method of electrical artefact compensation in measurement of a neural response. The neural response is evoked by a first stimulus, after which a compensatory stimulus is applied in order to counteract a stimulus artefact caused by the first stimulus. The invention also provides for short circuiting the stimulating electrode subsequent to the first stimulus. A system for implementing such steps is also provided. The invention may be of application in measurement of physiological responses, including neural responses and in particular a neural response of the auditory nerve.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: June 4, 2013
    Assignee: Cochlear Limited
    Inventors: Christopher N. Daly, Tony M. Nygard, Helmut C. Eder
  • Publication number: 20120059435
    Abstract: According to one aspect of the present invention, there is provided an implantable medical device comprising: an implantable component, comprising an implantable memory module, configured to receive and store recipient-specific operating parameters in the implantable memory module, an external component, comprising an external memory module, configured to communicate with the implantable component to receive the recipient-specific operating parameters, and to configure the external component using the recipient-specific operating parameters, wherein the implantable medical device is configured to transfer the recipient-specific operating parameters upon operationally coupling the implantable component with the external component.
    Type: Application
    Filed: November 10, 2011
    Publication date: March 8, 2012
    Inventor: Christopher N. Daly
  • Publication number: 20100016922
    Abstract: According to one aspect of the present invention, there is provided an implantable medical device comprising: an implantable component, comprising an implantable memory module, configured to receive and store recipient-specific operating parameters in the implantable memory module, an external component, comprising an external memory module, configured to communicate with the implantable component to receive the recipient-specific operating parameters, and to configure the external component using the recipient-specific operating parameters, wherein the implantable medical device is configured to transfer the recipient-specific operating parameters upon operationally coupling the implantable component with the external component.
    Type: Application
    Filed: March 10, 2009
    Publication date: January 21, 2010
    Applicant: COCHLEAR LIMITED
    Inventor: Christopher N. Daly
  • Patent number: 5191884
    Abstract: A multiprogrammable, telemetric, implantable defibrillator contains a high energy shock system to revert VT/VF's to normal sinus rhythm and a multi-programmable VVI bradycardia support system. When the apparatus is in an automatic shock sequence, there are two points of reconfirmation: at the programmed minimum time to shock and after the full charge has been reached, or at thirty seconds, whichever comes first. Reconfirmation involves testing the tachycardia detection output (TDO). If the TDO is high, reconfirmation occurs. If the TDO is low, reconfirmation will not occur and the device will subsequently dump the discharge. Two reconfirmations must occur before a shock is delivered to the patient. If the TDO is low at either reconfirmation, the charge will be dumped.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: March 9, 1993
    Assignee: Telectronics N.V.
    Inventors: Norma L. Gilli, Lorraine Holley, Geoffrey A. Drane, Anthony C. Stephens, Christopher N. Daly, Steven M. Maas
  • Patent number: 4611127
    Abstract: A magnetic field sensor including a resonant circuit having a coil. The resonant frequency varies with the strength of the magnetic field which passes through the coil. The resonant circuit is energized for approximately one-half cycle of the resonant frequency which characterizes the circuit in the absence of a magnetic field. During a sensing window of predetermined duration which then immediately follows, the voltage across the coil is examined for a zero crossing. A zero crossing will occur only in the presence of a magnetic field whose amplitude exceeds a threshold value.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: September 9, 1986
    Assignee: Telectronics N.V.
    Inventors: Ibrahim H. Ibrahim, Christopher N. Daly
  • Patent number: 4541431
    Abstract: A combined telemetry system and magnetic field sensor for use in an implantable medical device. The telemetry system includes a conventional resonant circuit for transmitting and receiving data. The resonant circuit has a coil which is also used to sense the presence of a magnetic field exceeding a threshold value. The resonant frequency varies with the strength of the magnetic field which passes through the coil. Periodically, the resonant circuit is energized, and during a sensing window of predetermined duration which then immediately follows the voltage across the coil is examined for a predetermined number of zero crossings. That number of zero crossings will occur only in the presence of a magnetic field whose amplitude exceeds the threshold value. It is possible to achieve a sensitivity in such a system which is comparable to that of conventional miniature reed switches.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: September 17, 1985
    Assignee: Telectronics Pty. Ltd.
    Inventors: Ibrahim H. Ibrahim, Christopher N. Daly
  • Patent number: 4532930
    Abstract: A cochlear implant system includes an electrode array (1) comprising multiple platinum ring electrodes in a silastic carrier to be implanted in the cochlea of the ear. A receiver-stimulator (3) containing a semiconductor integrated circuit and other components is implanted in the patient adjacent the ear to receive data information and power through tuned coil (5) using an inductive link (6) from a patient-wearable external speech processor (7) including an integrated circuit and various components which is configured or mapped to emit data signals from an EPROM programmed to suit each patient electrical stimulation perceptions through testing of the patient and his implanted stimulator/electrode using a diagnostic and programming unit (12) connected to the processor by an interface unit (10).
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: August 6, 1985
    Assignee: Commonwealth of Australia, Dept. of Science & Technology
    Inventors: Peter A. Crosby, Christopher N. Daly, David K. Money, James F. Patrick, Peter M. Seligman, Janusz A. Kuzma
  • Patent number: 4533988
    Abstract: There is disclosed a bridge circuit which finds particularly advantageous use in medical prostheses which can be programmed externally and which can transmit telemetry signals. The entire circuit is implemented on a single CMOS integrated circuit. Depending upon the values of two control bits, the bridge circuit functions to derive a powering potential from an externally transmitted signal, with or without regulation. Externally transmitted programming signals are detectable, and telemetry signals can be transmitted from the chip as well. There is no active switching of bridge devices during power rectification mode, and instead they are biased on continuously. This allows the rectifier to operate at carrier frequencies as high as several megahertz. All of this is achieved by using conventional CMOS processing techniques, without requiring any extra diffusion steps.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: August 6, 1985
    Assignee: Telectronics Pty. Ltd.
    Inventors: Christopher N. Daly, David K. Money
  • Patent number: 4453162
    Abstract: A transmitter for a medical prosthesis which is highly efficient, and also permits rapid starting and stopping so that the same coil can be used for both transmission and reception without undue delays between the two modes of operation. During transmission, a tuned circuit, consisting of the coil and a capacitor, is pumped at a frequency equal to the resonant frequency. Transmission is concluded when almost all of the energy in the tuned circuit is in the form of a voltage across the capacitor and when the current through the inductor is approximately zero. This allows the inductor to be used immediately for reception. At the start of the next transmission cycle, the voltage which is maintained across the capacitor is used to initially energize the tuned circuit.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: June 5, 1984
    Assignee: Telectronics Pty. Ltd.
    Inventors: David K. Money, Christopher N. Daly
  • Patent number: 4408608
    Abstract: There is disclosed an implantable tissue-stimulating prosthesis, such as a cochlear prosthesis, which can not only be implemented in single-chip form, but which also permits great flexibility in stimulation strategy and data transmission format. Only sixteen electrodes are required for stimulating fifteen different sites. Each site is stimulated by a biphasic pulse under control of two adjacent electrodes whose polarities are reversed in the middle of the site stimulation cycle. Although the transmission scheme requires a pulse-width modulation format, the precise form of the format can be varied in order to accommodate widely different stimulation strategies. For example, only a single site may be stimulated during each transmission frame or multiple sites may be stimulated during the same frame. Although only one site can be stimulated at any instant of time, the system cycling is so fast that "simultaneous" site stimulations are perceived.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: October 11, 1983
    Assignee: Telectronics Pty. Ltd.
    Inventors: Christopher N. Daly, David K. Money
  • Patent number: 4365633
    Abstract: There is disclosed a pacemaker programmer for operation by a patient. The programmer can be pre-set by the physician to allow the patient to set his pacemaker in any one of a limited number of states, the states controllable by the patient being a sub-set of the set controllable by the physician with use of his conventional-type programmer. In the illustrative embodiment of the invention, while the physician programmer can control eight different rates, the patient programmer can set only three of these ("exercise", "awake" and "sleep" values), the particular values being preselected by the physician.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: December 28, 1982
    Assignee: Telectronics Pty. Ltd.
    Inventors: James Loughman, Christopher N. Daly, Ronald A. C. Washington
  • Patent number: 4337776
    Abstract: A pacer which facilitates the measurements of both electrode impedance and stimulation threshold. When activated by an external magnet, a sequence of reducing-amplitude stimulating pulses is generated, with successive pulses in the sequence being separated by full-amplitude pulses. This pulse alternation scheme allows long test sequences, and therefore measurements with greater resolution, because full-amplitude pacing pulses are always present (even though at a slightly reduced rate). The reduction in amplitude of successive pulses is determined by the electrode impedance rather than being predetermined, and thus the examination of a skin potential recording allows electrode impedance to be determined along with the capture threshold.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: July 6, 1982
    Assignee: Telectronics Pty. Ltd.
    Inventors: Christopher N. Daly, Michael S. Hirshorn, David K. Money, Loraine K. Holley