Patents by Inventor Sam W. Bowman, IV
Sam W. Bowman, IV 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).
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Patent number: 7347819Abstract: An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.Type: GrantFiled: June 15, 2004Date of Patent: March 25, 2008Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Philip T. Weiss, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 7024245Abstract: An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.Type: GrantFiled: May 11, 2004Date of Patent: April 4, 2006Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 6958705Abstract: An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.Type: GrantFiled: January 22, 2001Date of Patent: October 25, 2005Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather
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Ambulatory medical apparatus and method using a telemetry system with predefined reception listening
Patent number: 6950708Abstract: An implanted medical device (e.g. infusion pump) and an external device communicate with one another via telemetry messages that are receivable only during windows or listening periods. Each listening period is open for a prescribed period of time and is spaced from successive listening periods by an interval. The prescribed period of time is typically kept small to minimize power consumption. To increase likelihood of successful communication, the window may be forced to an open state, by use of an attention signal, in anticipation of an incoming message. To further minimize power consumption, it is desirable to minimize use of extended attention signals, which is accomplished by the transmitter maintaining an estimate of listening period start times and attempting to send messages only during listening periods. In the communication device, the estimate is updated as a result of information obtained with the reception of each message from the medical device.Type: GrantFiled: July 29, 2002Date of Patent: September 27, 2005Assignee: Medtronic Minimed, Inc.Inventors: Sam W. Bowman IV, Ronald J. Lebel, Daniel H. Villegas, John C. Gord -
Patent number: 6873268Abstract: An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.Type: GrantFiled: January 22, 2001Date of Patent: March 29, 2005Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather
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Patent number: 6811534Abstract: An implanted medical device (e.g. infusion pump) and an external device communicate with one another via telemetry messages that are receivable only during windows or listening periods. Each listening period is open for a prescribed period of time and is spaced from successive listening periods by an interval. The prescribed period of time is typically kept small to minimize power consumption. To increase likelihood of successful communication, the window may be forced to an open state, by use of an attention signal, in anticipation of an incoming message. To further minimize power consumption, it is desirable to minimize use of extended attention signals, which is accomplished by the transmitter maintaining an estimate of listening period start times and attempting to send messages only during listening periods. In the communication device, the estimate is updated as a result of information obtained with the reception of each message from the medical device.Type: GrantFiled: January 22, 2001Date of Patent: November 2, 2004Assignee: Medtronic Minimed, Inc.Inventors: Sam W. Bowman, IV, Ronald J. Lebel, Varaz Shahmirian, Timothy J. Starkweather, Philip T. Weiss, Daniel H. Villegas, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 6813519Abstract: An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.Type: GrantFiled: January 22, 2001Date of Patent: November 2, 2004Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 6811533Abstract: An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.Type: GrantFiled: January 22, 2001Date of Patent: November 2, 2004Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Philip T. Weiss, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 6687546Abstract: An implanted medical device (e.g. infusion pump) and external device communicate with one another via telemetry wherein messages are transmitted under a robust communication protocol. The communication protocol gives enhanced assurance concerning the integrity of messages that impact medical operations of the implantable device. Messages are transmitted using a multipart format that includes a preamble, a frame sync, a telemetry ID, data, and a validation code. The data portion of the message includes an op-code that dictates various other elements that form part of the message. The data portion may also include additional elements such as sequence numbers, bolus numbers, and duplicate data elements. A telemetry ID for the transmitting device may be implicitly embedded in the message as part of the validation code that is sent with the message and that must be pre-known by the receiver to confirm the integrity of the received message.Type: GrantFiled: January 22, 2001Date of Patent: February 3, 2004Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Philip T. Weiss, Robert C. Dennard, John T. Armstrong, John D. Richert
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Patent number: 6648821Abstract: An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.Type: GrantFiled: January 22, 2001Date of Patent: November 18, 2003Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Wayne A. Morgan
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Patent number: 6577899Abstract: An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.Type: GrantFiled: January 22, 2001Date of Patent: June 10, 2003Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Daniel H. Villegas, David Y. Choy, Philip T. Weiss
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Patent number: 6571128Abstract: An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.Type: GrantFiled: January 22, 2001Date of Patent: May 27, 2003Assignee: Medtronic Minimed, Inc.Inventors: Ronald J. Lebel, Varaz Shahmirian, Sam W. Bowman, IV, Timothy J. Starkweather, Wayne A. Morgan
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Patent number: 6427088Abstract: An implanted medical device (e.g. infusion pump) and an external device communicate with one another via telemetry messages that are receivable only during windows or listening periods. Each listening period is open for a prescribed period of time and is spaced from successive listening periods by an interval. The prescribed period of time is typically kept small to minimize power consumption. To increase likelihood of successful communication, the window may be forced to an open state, by use of an attention signal, in anticipation of an incoming message. To further minimize power consumption, it is desirable to minimize use of extended attention signals, which is accomplished by the transmitter maintaining an estimate of listening period start times and attempting to send messages only during listening periods. In the communication device, the estimate is updated as a result of information obtained with the reception of each message from the medical device.Type: GrantFiled: January 22, 2001Date of Patent: July 30, 2002Assignee: Medtronic MiniMed, Inc.Inventors: Sam W. Bowman, IV, Ronald J. Lebel, Daniel H. Villegas, John C. Gord