Patents Assigned to CRM
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Patent number: 12289813Abstract: A self-adaptive constant-current driving circuit for a three-channel multi-color LED, including a decoder, a two-phase non-overlapping circuit, and a LED constant-current driving circuit, where the decoder determines the number of lighted channels according to a first input signal, and generates a first switch control signal and a second switch control signal; the two-phase non-overlapping circuit modulates the first switch control signal into a first two-phase non-overlapping signal and a second two-phase non-overlapping signal, and modulates the second switch control signal into a third two-phase non-overlapping signal and a fourth two-phase non-overlapping signal; the LED constant-current driving circuit controls an on/off state of the respective channel of LED according to a second input signal, and outputs a current for controlling a brightness of the respective channel of LED according to the first two-phase non-overlapping signal, the second two-phase non-overlapping signal, the third two-phase non-oveType: GrantFiled: December 15, 2021Date of Patent: April 29, 2025Assignee: CRM ICBG(WUXI)CO., LTD.Inventors: Zhenli Liu, Sheng Zhou, Dongmin Ding, Pengfei Cai
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Patent number: 12266919Abstract: The present application relates to a method, circuit, and motor driving system for adaptively adjusting a PWM duty cycle, comprising: sampling a direct current bus voltage and performing a low-pass filtering; determining whether the direct current bus voltage is under-voltage; if yes, entering an under-voltage protection state; and if not, executing the next step; calculating a new duty cycle and a new amplitude; determining whether the new duty cycle is greater than 100%; if yes, applying a weak magnetic control; and if not, adjusting a duty cycle of PWM signals through the new amplitude. Without altering the core current loop, torque loop, or speed loop of the motor driving system, this application adaptively adjusts the PWM duty cycle based on existing sine wave generators and PWM generators, effectively mitigating the impact of direct current bus voltage fluctuations on motor performance, ensuring straightforward operation, and significantly reducing costs.Type: GrantFiled: July 29, 2022Date of Patent: April 1, 2025Assignee: CRM ICBG ( wuxi ) Co., ltd.Inventors: Sang Wang, Xudong Zhao, Zhengrui Zhang
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Publication number: 20250106963Abstract: A PWM signal conversion circuit and method, and an LED dimming system. The circuit includes: a PWM signal detection module, which outputs a first voltage corresponding to a low-level time of the PWM signal and a second voltage corresponding to a high-level time of the PWM signal; an addition module, which sums the first and second voltages to obtain a third voltage; a switch signal generation module, which generates a switch signal based on the third voltage; a duty cycle ratio generation module, which obtains a duty cycle ratio of the PWM signal based on a counting to the high level of the PWM signal by the switch signal; and an output voltage generation module, which obtains an output voltage related to a duty cycle of the PWM signal based on the duty cycle ratio.Type: ApplicationFiled: July 29, 2022Publication date: March 27, 2025Applicant: CRM ICBG (WUXI) CO., LTD.Inventors: Jun LIU, Quanqing WU, Guocheng LI
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Patent number: 12186551Abstract: An implantation accessory includes a steerable catheter comprising, on a distal end, a tubular protection tip having an internal lumen configured to house an implantable medical device. The tubular protection tip includes a fastening mechanism comprising an elastic deformable component that engages a rigid component disposed within a cavity of the implantable medical device to secure the implantable medical device within the tubular protection tip. The elastic deformable component can provide radial compression about the rigid component, and application of a torsion torque to the tubular element during implantation of the implantable medical device causes the elastic deformable component to release the rigid component.Type: GrantFiled: January 5, 2021Date of Patent: January 7, 2025Assignee: SORIN CRM SASInventor: Jean-François Ollivier
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Patent number: 12167513Abstract: A LED dimming circuit, including a low-level-voltage generation module, a high-level-voltage generation module, a base-voltage generation module, and a dimming-signal generation module. By counting the high and low levels of a low-frequency PWM signal, high and low-level voltages with respect to time are obtained; a constant current source and a capacitor are used to convert high-frequency switching signals to a DC base voltage that is only related to the duty cycle of the low-frequency PWM signal. When the base voltage is greater than a predetermined voltage, the base voltage is output as the dimming signal; when the base voltage is less than the predetermined voltage, a new PWM signal is output as the dimming signal, whose magnitude is the same of that of the predetermined voltage, wherein the average values of the new PWM signal and the base voltage are the same.Type: GrantFiled: November 22, 2021Date of Patent: December 10, 2024Assignee: CRM ICBG (WUXI) CO., LTD.Inventors: Jun Liu, Guocheng Li, Quanqing Wu
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Patent number: 12151115Abstract: A torque limiter for a delivery system of a leadless active implantable medical device includes a first interface for coupling to a docking feature of the delivery system, the docking feature secured in rotation with respect to the leadless active implantable medical device and a second interface for coupling to a distal end of a torque shaft of the delivery system, the torque limiter limiting the torque transmission from the torque shaft to the docking feature when radial torque is applied to the torque shaft.Type: GrantFiled: December 30, 2020Date of Patent: November 26, 2024Assignee: SORIN CRM SASInventor: Jean-François Ollivier
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Patent number: 12126332Abstract: A circuit structure for realizing circuit pin multiplexing, comprising an MCU module, a temperature sensing circuit and a functional module circuit. The output end of the temperature sensing circuit is connected with an enable signal interface of the MCU module, the output voltage of the temperature sensing circuit is always higher than the threshold voltage of the enable signal, and the MCU module is connected with the functional module circuit. The circuit structure of the present invention realizes the mutual influence of analog signal output and digital signal transmission by designing a temperature sensing output curve, and achieves multi-function multiplexing of a single pin, so that the output of the analog signal and the input of the digital signal can share the pins, it solves the problem of the limitation of the number of pins, and promotes the transmission of the signal and improves the cost performance of the circuit.Type: GrantFiled: July 2, 2021Date of Patent: October 22, 2024Assignee: CRM ICBG (WUXI) CO., LTD.Inventors: Weizhong Liu, Yaping Jiang
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Publication number: 20240342445Abstract: In one embodiment, the present application discloses, in part, a balloon catheter assembly comprising: a) a balloon catheter comprising a proximal end, a distal end; and b) a connecting line comprising a proximal end and a distal end, wherein the proximal end comprises a first terminal magnetic connector for forming a water tight connection with the magnetic click connector on the port panel.Type: ApplicationFiled: March 6, 2024Publication date: October 17, 2024Applicant: CRM Medical Devices, Inc.Inventors: Meilin Dong, Christopher Stephen Elliott, Rustin Massoudi
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Publication number: 20240332951Abstract: The present application relates to a method, circuit, and motor driving system for adaptively adjusting a PWM duty cycle, comprising: sampling a direct current bus voltage and performing a low-pass filtering; determining whether the direct current bus voltage is under-voltage; if yes, entering an under-voltage protection state; and if not, executing the next step; calculating a new duty cycle and a new amplitude; determining whether the new duty cycle is greater than 100%; if yes, applying a weak magnetic control; and if not, adjusting a duty cycle of PWM signals through the new amplitude. Without altering the core current loop, torque loop, or speed loop of the motor driving system, this application adaptively adjusts the PWM duty cycle based on existing sine wave generators and PWM generators, effectively mitigating the impact of direct current bus voltage fluctuations on motor performance, ensuring straightforward operation, and significantly reducing costs.Type: ApplicationFiled: July 29, 2022Publication date: October 3, 2024Applicant: CRM ICBG (WUXI) CO., LTD.Inventors: Sang WANG, Xudong ZHAO, Zhengrui ZHANG
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Patent number: 12097375Abstract: A cardiac pacing system and a pacemaker fixation device are disclosed. The pacemaker fixation device includes a ring-shaped stent and at least one contractible member. The ring-shaped stent is configured to load a leadless pacemaker and easily fix it at a target site in a patient's body reliably without dislodgement. A connecting element in the contractible member can be reliably connected to an external mechanism, thus facilitating retrieval and removal of the cardiac pacing system with an increased success rate. During implantation, the contractible member can be adapted by operating the external mechanism to adjust the pacing location for the leadless pacemaker, thus allowing the operator to easily determine the best pacing location that can result in enhanced pacing performance of the leadless pacemaker. Further, the leadless pacemaker may be fixed in the atrium in order to pace the atrium, thus reducing non-physiological pacing with atrioventricular desynchronization.Type: GrantFiled: September 27, 2019Date of Patent: September 24, 2024Assignee: MICROPORT SOARING CRM (SHANGHAI) CO., LTD.Inventors: Peng Guo, Grace Jang, Zhijun Cheng
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Patent number: 12083351Abstract: A subcutaneous implantable active medical device, in particular a subcutaneous cardiac defibrillator, comprising a housing and a subcutaneous implantable lead connected to the housing. The subcutaneous implantable lead comprises a plurality of sensing electrodes forming at least two dipoles from which at least two electrical signals are collected concurrently. The first dipole having a first length less than a second length of the second dipole. The subcutaneous implantable active medical device further comprises a controller configured to determine whether or not tachyarrhythmia is present by determining a criterion of similarity based on the electrical signals collected concurrently via the first dipole and via the second dipole during a defined series of cardiac cycles that is such that detection of a depolarization peak, corresponding to detection of an R wave, is performed via the first dipole.Type: GrantFiled: July 2, 2020Date of Patent: September 10, 2024Assignee: SORIN CRM SASInventors: Thierry Legay, Rafael Cordero Alvarez, Delphine Feuerstein
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Patent number: 12059573Abstract: A cardiac defibrillation system. The system comprising a housing and an implantable lead. The implantable lead comprising two ends, including a first end connected to the housing and a second end being a free end. The implantable lead also comprising a defibrillation electrode and at least three detection electrodes including a first detection electrode, a second detection electrode, and a third detection electrode. The first detection electrode and the second detection electrode forming a first dipole. The third detection electrode and the first detection electrode, or, the third detection electrode and the second detection electrode, or, the housing and one of said detection electrodes, forming a second dipole, where a length of the first dipole is between 5 and 50 millimeters and a length of the second dipole is between 50 and 400 millimeters.Type: GrantFiled: December 22, 2022Date of Patent: August 13, 2024Assignee: SORIN CRM SASInventors: Thierry Legay, Rafael Cordero Alvarez, Delphine Feuerstein
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Publication number: 20240268006Abstract: A LED dimming circuit, including a low-level-voltage generation module, a high-level-voltage generation module, a base-voltage generation module, and a dimming-signal generation module. By counting the high and low levels of a low-frequency PWM signal, high and low-level voltages with respect to time are obtained; a constant current source and a capacitor are used to convert high-frequency switching signals to a DC base voltage that is only related to the duty cycle of the low-frequency PWM signal. When the base voltage is greater than a predetermined voltage, the base voltage is output as the dimming signal; when the base voltage is less than the predetermined voltage, a new PWM signal is output as the dimming signal, whose magnitude is the same of that of the predetermined voltage, wherein the average values of the new PWM signal and the base voltage are the same.Type: ApplicationFiled: November 22, 2021Publication date: August 8, 2024Applicant: CRM ICBG (WUXI) CO., LTD.Inventors: JUN LIU, GUOCHENG LI, QUANQING WU
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Patent number: 12057221Abstract: The present invention relates to the field of medical devices and discloses a program control system and method for an implantable electronic device. The program control system includes at least one communication device, at least one terminal device and a cloud server communicatively connected to both the communication device and the terminal device. The communication device is configured to acquire feedback data from the implantable electronic device (IED) and upload the feedback data to the cloud server. The cloud server is configured to process the feedback data and store the processed feedback data. The terminal device is configured to retrieve the processed feedback data from the cloud server for enquiry by a user. In the present invention, there is also provided a program control method for an implantable electronic device.Type: GrantFiled: March 12, 2019Date of Patent: August 6, 2024Assignee: MICROPORT SOARING CRM (SHANGHAI) CO., LTD.Inventor: Li Wang
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Patent number: 12042650Abstract: The disclosure relates to a multipolar, detection/stimulation endovascular lead intended to be implanted in the coronary venous network. The lead comprises a lead body with in proximal portion a connector to a cardiac pacemaker/defibrillator generator, and in a distal portion a first branch and a second branch extending beyond a bifurcation. The distal ends of the branches are free ends carrying an array of electrodes connected to the connector. Each of the branches comprises at its free end an outlet in the distal direction, able to receive an implantation guide wire inserted therein and to guide the implantation guide wire in an axial direction parallel to the main axis of the lead body.Type: GrantFiled: February 8, 2021Date of Patent: July 23, 2024Assignee: SORIN CRM SASInventor: Jean-François Ollivier
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Patent number: 11998751Abstract: A method for processing a cardiac signal represented as a function of time includes providing a number n of different threshold levels Ni, with i=1 to n and n being greater than or equal to three; detecting, from a given time T and per threshold level Ni, at least two successive intersections of the cardiac signal with the threshold level Ni, considering a crossing per increasing and/or decreasing value of the cardiac signal with the threshold level Ni; and determining at least one statistical parameter for the cardiac signal from the intersections of the cardiac signal with the at least three different threshold levels Ni. The method may be implemented by a subcutaneous active implantable medical device having a control circuit configured to process a cardiac signal.Type: GrantFiled: December 3, 2020Date of Patent: June 4, 2024Assignee: SORIN CRM SASInventors: Elodie Marie, Luca Vitali
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Patent number: 11986665Abstract: The present invention relates to an implantable lead comprising at least one conductive wire and one electrical connector, the electrical connector configured to be connected to an implantable medical device such as a cardiac stimulation, defibrillation and/or neuromodulation device, wherein the electrical connection between the conductive wire and the connector is effected by a first hypotube welded to the conductive wire and welded to a second hypotube of the electrical connector. The present invention also relates to a method for electrically connecting the at least one conductive wire of the implantable lead to the electrical connector.Type: GrantFiled: November 19, 2019Date of Patent: May 21, 2024Assignee: SORIN CRM SASInventors: Etienne Julien, Nicolas Shan, Maxime Rault
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Publication number: 20240121870Abstract: A self-adaptive constant-current driving circuit for a three-channel multi-color LED, including a decoder, a two-phase non-overlapping circuit, and a LED constant-current driving circuit, where the decoder determines the number of lighted channels according to a first input signal, and generates a first switch control signal and a second switch control signal; the two-phase non-overlapping circuit modulates the first switch control signal into a first two-phase non-overlapping signal and a second two-phase non-overlapping signal, and modulates the second switch control signal into a third two-phase non-overlapping signal and a fourth two-phase non-overlapping signal; the LED constant-current driving circuit controls an on/off state of the respective channel of LED according to a second input signal, and outputs a current for controlling a brightness of the respective channel of LED according to the first two-phase non-overlapping signal, the second two-phase non-overlapping signal, the third two-phase non-oveType: ApplicationFiled: December 15, 2021Publication date: April 11, 2024Applicant: CRM ICBG(WUXI)CO., LTD.Inventors: ZHENLI LIU, SHENG ZHOU, DONGMIN DING, PENGFEI CAI
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Patent number: 11917735Abstract: An LED driving system and a closed-loop control method for LED driving are provided; the LED driving system includes an LED load, a constant-current control module, an electrolytic capacitor, a discharging-voltage measuring module, a bus-voltage measuring module and a charging-current control module, wherein the charging-current control module is connected to an output of the discharging-voltage measuring module, the bus-voltage measuring module and a lower plate of the electrolytic capacitor; the charging current of the electrolytic capacitor is adjusted based on the control signal of the discharging-voltage measuring module and the measured voltage of the bus-voltage measuring module, wherein the charging current of the electrolytic capacitor is reduced by an subtraction operation performed by the addition and subtraction counter, and the charging current of the electrolytic capacitor is increased by an addition operation performed by the addition and subtraction counter.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: CRM ICBG (WUXI) CO., LTD.Inventors: Jun Liu, Guocheng Li, Quanqing Wu
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Patent number: 11911183Abstract: An implantable medical system includes at least four electrodes forming a dipole emitter and a dipole receiver which is distinct from the dipole emitter. The system is configured to recover physiological mechanical information by way of the two dipoles, by analyzing a received and processed electrical signal, wherein the amplitude has been modulated in accordance with the electrical properties of the propagation medium between the dipole emitter and the dipole receiver. Thus, a parameter which is representative of a pre-ejection period may be extracted from the attenuation of the voltage between the dipole emitter and the dipole receiver by taking an electrocardiogram or an electrogram into account.Type: GrantFiled: December 2, 2020Date of Patent: February 27, 2024Assignee: SORIN CRM SASInventor: Mirko Maldari