Patents by Inventor Eric D. Blom
Eric D. Blom 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: 11309838Abstract: A self-oscillating spread spectrum frequency control loop contains a gated voltage-controlled oscillator (VCO) which receives a digital signal that can start or stop its oscillation. The VCO generates a spread spectrum carrier by receiving a triangle wave signal from a delaying ramp generator in a loop, its ramp direction controlled by a frequency comparator. The loop generates a spectrum spread as wide as possible above a minimum frequency. RF isolators that utilize low-pass filters in the transmitter and high-pass filters in the receiver, where the F-3 dB cutoff frequencies of both filters vary in a correlated manner, are used to not produce spread spectrum frequencies below the minimum frequency. Die from a given wafer lot, when designed such that the low- and high-pass cutoff frequencies track, can be used to form RF digital isolators whose minimum spread spectrum frequency does not go below the minimum frequency required by that wafer lot.Type: GrantFiled: December 16, 2020Date of Patent: April 19, 2022Assignee: Littelfuse, Inc.Inventor: Eric D. Blom
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Patent number: 11219729Abstract: A medical device system and method including an endotracheal tube configured for insertion into a patients mouth or nose are disclosed. The endotracheal tube may include an outer cannula extending from a proximal end to a distal end configured to be positioned between in a patient's trachea. The outer cannula may include a lumen extending from a first opening defined in the proximal end to a second opening defined in the distal end. The endotracheal tube may further include an inner cannula removably positioned in the lumen of the outer cannula. The inner cannula may include a proximal end that extends outwardly from the first opening of the outer cannula, a distal end positioned adjacent to the distal end of the outer cannula, and a passageway extending through the distal and proximal ends of the inner cannula.Type: GrantFiled: March 21, 2019Date of Patent: January 11, 2022Assignee: Hansa Medical Products, Inc.Inventors: Eric D. Blom, Brian Kamradt
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Publication number: 20210203276Abstract: A self-oscillating spread spectrum frequency control loop contains a gated voltage-controlled oscillator (VCO) which receives a digital signal that can start or stop its oscillation. The VCO generates a spread spectrum carrier by receiving a triangle wave signal from a delaying ramp generator in a loop, its ramp direction controlled by a frequency comparator. The loop generates a spectrum spread as wide as possible above a minimum frequency. RF isolators that utilize low-pass filters in the transmitter and high-pass filters in the receiver, where the F-3 dB cutoff frequencies of both filters vary in a correlated manner, are used to not produce spread spectrum frequencies below the minimum frequency. Die from a given wafer lot, when designed such that the low- and high-pass cutoff frequencies track, can be used to form RF digital isolators whose minimum spread spectrum frequency does not go below the minimum frequency required by that wafer lot.Type: ApplicationFiled: December 16, 2020Publication date: July 1, 2021Applicant: Littelfuse, Inc.Inventor: Eric D. Blom
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Patent number: 10903792Abstract: A self-oscillating spread spectrum frequency control loop contains a gated voltage-controlled oscillator (VCO) which receives a digital signal that can start or stop its oscillation. The VCO generates a spread spectrum carrier by receiving a triangle wave signal from a delaying ramp generator in a loop, its ramp direction controlled by a frequency comparator. The loop generates a spectrum spread as wide as possible above a minimum frequency. RF isolators that utilize low-pass filters in the transmitter and high-pass filters in the receiver, where the F-3 dB cutoff frequencies of both filters vary in a correlated manner, are used to not produce spread spectrum frequencies below the minimum frequency. Die from a given wafer lot, when designed such that the low- and high-pass cutoff frequencies track, can be used to form RF digital isolators whose minimum spread spectrum frequency does not go below the minimum frequency required by that wafer lot.Type: GrantFiled: December 31, 2019Date of Patent: January 26, 2021Assignee: Littelfuse, Inc.Inventor: Eric D. Blom
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Publication number: 20200405990Abstract: A medical device system and method including an endotracheal tube configured for insertion into a patients mouth or nose are disclosed. The endotracheal tube may include an outer cannula extending from a proximal end to a distal end configured to be positioned between in a patient's trachea. The outer cannula may include a lumen extending from a first opening defined in the proximal end to a second opening defined in the distal end. The endotracheal tube may further include an inner cannula removably positioned in the lumen of the outer cannula. The inner cannula may include a proximal end that extends outwardly from the first opening of the outer cannula, a distal end positioned adjacent to the distal end of the outer cannula, and a passageway extending through the distal and proximal ends of the inner cannula.Type: ApplicationFiled: March 21, 2019Publication date: December 31, 2020Inventors: Eric D. BLOM, Brian KAMRADT
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Publication number: 20200009341Abstract: A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. The surgical instrument system may include one or more capacitive sensors near a tip of a needle and electrical circuitry to monitor the capacitance of the capacitive sensors. The capacitance of the capacitive sensors may change as the needle is inserted into different tissue of lumens of the patient's body, allowing for the position of the needle to be determined based on analysis of the capacitance of the capacitive sensors.Type: ApplicationFiled: August 27, 2019Publication date: January 9, 2020Inventors: Eric D. Blom, Zhen Huang, Larry Douglas O'Cull, Dart A. Fox, Brian Kamradt
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Patent number: 10413399Abstract: A device for maintaining a tract through a tissue wall having a proximal side and a distal side. The device includes a body, a retainer adjacent an end of the body which will lie on the distal side in the use orientation, and a flange adjacent an end of the body which will lie on the proximal side in the use orientation. The retainer comprises a ferromagnetic material that responds to a magnetic field to maintain the retainer in an undeployed, insertion orientation.Type: GrantFiled: January 15, 2016Date of Patent: September 17, 2019Assignee: HANSA MEDICAL PRODUCTS, INC.Inventors: Eric D. Blom, Brian Kamradt
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Publication number: 20190269869Abstract: A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. Liquid may be present in the lumen or the lumen may be devoid of liquid or tissue. The instrument is configured to determine when the needle tip is engaged with a portion of patient's tissue and determine when the needle tip has exited that portion of the patient's tissue by detecting changes in properties of the tissue, specifically, electrical resistance.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Patent number: 10398419Abstract: A device for sealing a fistula includes a first flange for orienting against a first wall of the fistula, a second flange for orienting against a second wall of the fistula, and at least one stem coupling the first and second flanges. Illustratively, the at least one stem is elastomeric. The stem(s) exhibit(s) an elongation of greater than about 0.6 mm/N of force applied between the first and second flanges in the range of elongation of about 0 mm to about 15 mm. Additionally or alternatively illustratively, the stem(s) comprise(s) (an) elastomeric tube(s) including (a) wall section(s) having a varying radius along its (their) length(s). Additionally or alternatively illustratively, the stem(s) pass(es) through (respective) opening(s) provided in at least one of the first and second flanges to permit adjustment of the location of at least one of the first and second flanges along the length of the stem(s).Type: GrantFiled: October 5, 2016Date of Patent: September 3, 2019Assignee: Hansa Medical Products, Inc.Inventor: Eric D. Blom
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Patent number: 10293129Abstract: A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. Liquid may be present in the lumen or the lumen may be devoid of liquid or tissue. The instrument is configured to determine when the needle tip is engaged with a portion of patient's tissue and determine when the needle tip has exited that portion of the patient's tissue by detecting changes in properties of the tissue, specifically, electrical resistance.Type: GrantFiled: March 7, 2017Date of Patent: May 21, 2019Assignee: HANSA MEDICAL PRODUCTS, INC.Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Publication number: 20180272090Abstract: A medical instrument system and method including a tracheo-protective shield that extends outwardly from an endotracheal tube positioned in a patient's trachea is disclosed.Type: ApplicationFiled: March 27, 2017Publication date: September 27, 2018Inventor: Eric D. Blom
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Publication number: 20180169363Abstract: A tracheal tube apparatus includes a cannula having first and second ends. An inflatable cuff is formed on the cannula between the first and second ends. A conduit extends from the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff. A gauge for indicating the inflation pressure of the cuff is coupled in the conduit.Type: ApplicationFiled: November 29, 2017Publication date: June 21, 2018Inventors: Eric D. BLOM, Brad H. QUINN
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Publication number: 20180147380Abstract: A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. The surgical instrument system may include a balloon catheter including a percutaneous dilation balloon and a moveably positionable retainer. The retainer is configured to move relative to the balloon such that upon inflation of the balloon when the balloon is positioned in the opening in the patient's tissue, the retainer engages the patient's tissue to inhibit movement of the balloon catheter.Type: ApplicationFiled: January 23, 2018Publication date: May 31, 2018Inventors: Eric D. Blom, Dart A. Fox, Brian Kamradt
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Patent number: 9974933Abstract: A method and apparatus for treating a stricture in a body lumen. The method comprises (a) sensing pressure being exerted by a treatment device on the stricture, (b) determining if enough force is being exerted on the stricture, (c) if enough force is being exerted on the stricture, timing the application of enough force, (d) determining if too much force is being exerted by the treatment device on the stricture, (e) if too much force is being applied to the stricture, decrementing the force being applied to the stricture, (f) determining if not enough force is being applied to the stricture, (g) if not enough force is being applied to the stricture incrementing the force being applied to the stricture, and (h) repeating (a)-(g) until (i) a desired pressure has been maintained on the tissue for a desired time.Type: GrantFiled: March 20, 2017Date of Patent: May 22, 2018Assignee: HANSA MEDICAL PRODUCTS, INC.Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Patent number: 9801617Abstract: A device for sealing a fistula includes a first flange for orienting against a first wall of the fistula, a second flange for orienting against a second wall of the fistula, and at least one stem coupling the first and second flanges. Illustratively, the at least one stem is elastomeric. The stem(s) exhibit(s) an elongation of greater than about 0.6 mm/N of force applied between the first and second flanges in the range of elongation of about 0 mm to about 15 mm. Additionally or alternatively illustratively, the stem(s) comprise(s) (an) elastomeric tube(s) including (a) wall section(s) having a varying radius along its (their) length(s). Additionally or alternatively illustratively, the stem(s) pass(es) through (respective) opening(s) provided in at least one of the first and second flanges to permit adjustment of the location of at least one of the first and second flanges along the length of the stem(s).Type: GrantFiled: April 19, 2010Date of Patent: October 31, 2017Assignee: HANSA MEDICAL PRODUCTS, INC.Inventor: Eric D. Blom
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Publication number: 20170252526Abstract: A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. Liquid may be present in the lumen or the lumen may be devoid of liquid or tissue. The instrument is configured to determine when the needle tip is engaged with a portion of patient's tissue and determine when the needle tip has exited that portion of the patient's tissue by detecting changes in properties of the tissue, specifically, electrical resistance.Type: ApplicationFiled: March 7, 2017Publication date: September 7, 2017Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Publication number: 20170189657Abstract: A method and apparatus for treating a stricture in a body lumen. The method comprises (a) sensing pressure being exerted by a treatment device on the stricture, (b) determining if enough force is being exerted on the stricture, (c) if enough force is being exerted on the stricture, timing the application of enough force, (d) determining if too much force is being exerted by the treatment device on the stricture, (e) if too much force is being applied to the stricture, decrementing the force being applied to the stricture, (f) determining if not enough force is being applied to the stricture, (g) if not enough force is being applied to the stricture incrementing the force being applied to the stricture, and (h) repeating (a)-(g) until (i) a desired pressure has been maintained on the tissue for a desired time.Type: ApplicationFiled: March 20, 2017Publication date: July 6, 2017Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Publication number: 20170165441Abstract: A tracheal tube apparatus includes a cannula having first and second ends. An inflatable cuff is formed on the cannula between the first and second ends. A conduit extends from the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff. A gauge for indicating the inflation pressure of the cuff is coupled in the conduit.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventors: Eric D. BLOM, Brad H. QUINN
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Patent number: 9604042Abstract: A method and apparatus for treating a stricture in a body lumen. The method comprises (a) sensing pressure being exerted by a treatment device on the stricture, (b) determining if enough force is being exerted on the stricture, (c) if enough force is being exerted on the stricture, timing the application of enough force, (d) determining if too much force is being exerted by the treatment device on the stricture, (e) if too much force is being applied to the stricture, decrementing the force being applied to the stricture, (f) determining if not enough force is being applied to the stricture, (g) if not enough force is being applied to the stricture incrementing the force being applied to the stricture, and (h) repeating (a)-(g) until (i) a desired pressure has been maintained on the tissue for a desired time.Type: GrantFiled: June 13, 2016Date of Patent: March 28, 2017Assignee: Hansa Medical Products, Inc.Inventors: Dart A. Fox, Eric D. Blom, Brian Kamradt
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Patent number: 9579477Abstract: A tracheal tube apparatus includes a cannula having first and second ends. An inflatable cuff is formed on the cannula between the first and second ends. A conduit extends from the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff. A gauge for indicating the inflation pressure of the cuff is coupled in the conduit.Type: GrantFiled: June 2, 2015Date of Patent: February 28, 2017Assignee: HANSA MEDICAL PRODUCTS, INC.Inventors: Eric D. Blom, Brad H. Quinn