pressure sensing catheter

  • Pressure sensing catheter Semantic Scholar

    Apparatus (20) for performing a medical procedure inside a body of a patient, the apparatus comprising a first magnetic field generator (32) for disposition outside the patient's body, for generating a first magnetic field within the body a probe (28) comprising an insertion tube (54) having a distal end (30) for insertion into a body cavity of a patient one second magnetic field

  • The New Era of Catheter Ablation Technology Force Sensing

    Contact force sensing catheters is a major medical advancement that will change the way ablations are done. Ablation lesions will be more durable and consistent. Instances of tamponade will be significantly reduced or possibly eliminated entirely. Catheter ablation success rates will rise.

  • New pressure sensing elements for FFR coronary catheter

    The test measurements outperformed the specifications for the FFR pressure sensing. ABThe next generation FFR Coronary Catheter includes a new stable pressure sensor, AD conversion at the tip of the catheter and mount of these components on the sidewall of the catheter instead of the guide wire enabling thus to use standard guide wires.

  • Use of a pressure sensing sheath comparison with standard

    Methods A new technology involving a 330 µm fiberoptic sensor embedded in the wall of a sheath structure was tested against both radial artery catheter and sphygmomanometer readings obtained simultaneous with readings recorded from the pressure sensing system (PSS). Correlations and Bland-Altman analysis were used to determine whether use of

  • TECHNICAL DESCRIPTION OF PRESSURE MEASUREMENT

    Catheter-mounted microtransducers for urethral pressure measurements were introduced by Karlson35 in 1953. The microtransducer was the author’s own design,36 and the sensing part consisted of a small rubber tube filled with granular carbon. The resistance of these granules changed as the pressure exerted on the device changed. Microtransducers available today are either of semiconductor,37-39 fiber-optic type,40-42 or (as disclosed in this study) air-charged balloon sensing catheters. These catheters are commonly used in clinical studies.9, 43-45 The main advantage of catheter-tipped sensors are that they measure pressure at the catheter location where the sensor is located thus greatly simplifying calibration and zeroing of the system, except TDOC which zeros to atmosphere by the open system before closing the air column.. The pressure-sensing

  • Pressure sensing catheterGentera Holdings, LLC

    Pressure sensing catheter . United States Patent . Abstract This invention provides a pressure sensing catheter, and method for using the same, which eliminates the practitioners' need to fill the catheter with fluid manually prior to insertion, and thereby increases the accuracy and ease of the overall pressure-sensing procedure.

  • PRESSURE SENSING CATHETERGentera Devices, LLC

    This invention provides a pressure sensing catheter, and method for using the same, which eliminates the practitioners' need to fill the catheter with fluid manually prior to insertion, and thereby increases the accuracy and ease of the overall pressure-sensing procedure. The illustrative catheter includes, in its proximal end, a transducer base or housing that is permanently attached to the catheter shaft.

  • Pressure profile sensing systemScienceDirect

     · The main advantage of the sensing system for clinical applications is that pressure profiles can be measured without the need to insert and re-insert the sensing catheter during measurement which makes the examination much easier for the patient and thus for the medical doctor.

  • PRESSURE SENSING CATHETERPatentEurope PMC

     · This invention provides a pressure sensing catheter, and method for using the same, which eliminates the practitioners' need to fill the catheter with fluid manually prior to insertion, and thereby increases the accuracy and ease of the overall pressure-sensing procedure.

  • Utility of a 0.014″ pressure‐sensing guidewire to assess

     · The TSPG obtained by pressure-sensing guidewire correlated more strongly with angiographic minimal lumen diameter (r 2 = 0.801) than those obtained by 4 Fr catheter (r 2 = 0.360). The relationship of TSPG with percent stenosis was not strong, regardless of the method used (r 2 = 0.228 with pressure-sensing guidewire, 0.358 with 4 Fr catheter

  • Patterning piezoelectric thin film PVDF–TrFE based

     · The need for a pressure sensor on a catheter is not new and dates back to the 1970s , . So far, silicon based piezoresistive and capacitive pressure sensors have been employed for this application but with limited success due to above-mentioned reasons. Both, the device and the sensor were so placed that the sensing element was

  • CATHETER WITH PRESSURE SENSINGGovari, Assaf

    CATHETER WITH PRESSURE SENSING . United States Patent Application . Kind Code A1 . Abstract A medical probe includes a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact

  • How to measure blood pressure using an arterial catheter

     · Arterial blood pressure (BP) is a fundamental cardiovascular variable, is routinely measured in perioperative and intensive care medicine, and has a significant impact on patient management. The clinical reference method for BP monitoring in high-risk surgical patients and critically ill patients is continuous invasive BP measurement using an arterial catheter.

  • TECHNICAL DESCRIPTION OF PRESSURE MEASUREMENT

    momentarily obtained at time zero on the pressure-sensing catheter. At time zero no pressure increase is recorded due to blocking of the catheter hole. A pressure increase is built-up in the catheter until balance is obtained between pressure of the catheter fluid and tissue. 14, 17. If the pressure generated from the tissue is described by a

  • A Novel Flexible Distributed Pressure Sensing Strip for a

    Results on pressure variation profiles circumferentially around the urethra and longitudinally along the urethra are presented. Finally, the developed sensing catheter is tested in vivo in live female sheep to construct real-time urethral pressure profiles. The results are presented and discussed.

  • A Novel Flexible Distributed Pressure Sensing Strip A

     · A Novel Flexible Distributed Pressure Sensing Strip for a Urethral Catheter A DISSERTATION SUBMITTED TO THE FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA BY Mahdi Ahmadi IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Adviser Rajesh Rajamani June 2017

  • New pressure sensing elements for FFR coronary catheter

    The test measurements outperformed the specifications for the FFR pressure sensing. ABThe next generation FFR Coronary Catheter includes a new stable pressure sensor, AD conversion at the tip of the catheter and mount of these components on the sidewall of the catheter instead of the guide wire enabling thus to use standard guide wires.

  • US Patent for Dual pressure sensing catheter Patent

    A pressure sensing coupler interconnects proximal and distal sections of the catheter sheath and also houses the pressure sensor. The pressure sensing coupler includes a plurality of radial ports which provide communication between the fluid in the cavity and a pressure sensing chamber, which is also in communication with the reflective membrane.

  • Utility of a 0.014" pressure-sensing guidewire to assess

    The TSPG obtained by pressure-sensing guidewire correlated more strongly with angiographic minimal lumen diameter (r(2) = 0.801) than those obtained by 4 Fr catheter (r(2) = 0.360). The relationship of TSPG with percent stenosis was not strong, regardless of the method used (r(2) = 0.228 with pressure-sensing guidewire, 0.358 with 4 Fr catheter).

  • Pressure Testing Balloon CathetersMensor

    Pressure Testing Intra-aortic Balloon Catheters. The intra-aortic balloon pump (IABP) is a mechanical device that assists the human heart in pumping blood by decreasing myocardial oxygen demand and increasing the cardiac output. The device is inserted into the aorta. It consists of a long, thin tube called a catheter with a balloon on the end

  • LiPPS™ Intravascular Pressure Sensing System

     · Catheter Tip Pressure Transducer Catheter Guide Wire . Catheter Tip Pressure Transducer Catheter Guide Wire . Catheter Tip Pressure Transducer Catheter Guide Wire . SE . Indications for use . LiPPS™ Intravascular Pressure Sensing System is intended to be used in an environment like cathlab and for use in blood vessels, including coronary and

  • Implantable electrolyte conductance-based pressure sensing

     · The sensor performed comparably to a commercial pressure transducer also connected to the catheter port. Due to its scalability and cost, this sensor has the potential for use in a range of pressure sensing applications, such as measurement of intracranial, spinal, or interstitial pressures.

  • CATHETER WITH PRESSURE SENSINGGovari, Assaf

    In one embodiment, an electrode assembly on a catheter carries pressure transducers, which sense contact with tissue and convey signals to a pressure contact module. The module identifies the electrode elements that are associated with the pressure transducer signals and directs an energy generator to convey RF energy to these elements, and not to other elements that are in contact only with blood.

  • Catheter-integrated soft multilayer electronic arrays for

     · The constantan pressure sensors can effectively detect normal pressure and integrate with other electronic devices to enable simultaneous RFA, temperature sensing and pressure sensing

  • Pressure Sensing CatheterPatentEurope PMC

     · A pressure sensing catheter having a proximal end and a distal end. The proximate end includes one or more leur fittings contiguous with one or more lumens disposed within the catheter, a connector coupled to a signal lead which spans the length of the pressure sensing catheter and a pressure transducer coupled at about a distal end of the pressure sensing catheter.

  • Mikro-Cath™ Pressure Catheter Millar Clinical Products

     · The Mikro-Cath Pressure Catheter is a single‐use catheter intended to be used for medical research and diagnostic purposes. The catheter is indicated to measure cardiovascular, intra-compartmental, and airway pressures in the human body. The catheter is used as a minimally invasive device under short-term limited body contact (<24 hours).

  • Pressure Sensing TechnologiesData Sci

    DSI pressure sensing systems consist of a solid state sensor coupled to a proprietary and highly biocompatible catheter to acquire the signal. After thirty years and countless improvements, more than 10,000 DSI pressure implants are used annually to record blood pressure data, plus other cardiovascular and non-cardiovascular pressure signals in rats, mice, rabbits, dogs, pigs, non-human primates and

  • Mikro-Cath™ Pressure Catheter Millar Clinical Products

     · The Mikro-Cath Pressure Catheter is a single‐use catheter intended to be used for medical research and diagnostic purposes. The catheter is indicated to measure cardiovascular, intra-compartmental, and airway pressures in the human body. The catheter is used as a minimally invasive device under short-term limited body contact (<24 hours).

  • PRESSURE SENSING CATHETERAbstractEurope PMC

     · PRESSURE SENSING CATHETER. HOCH ROBERT, WELTNER THOMAS, HANNULA DONALD. Author information. Affiliations. All authors. 1. HOCH ROBERT Patent Publ. of Application without search reportEuropean Patent Office Application EP

  • Patterning piezoelectric thin film PVDF–TrFE based

     · The need for a pressure sensor on a catheter is not new and dates back to the 1970s , . So far, silicon based piezoresistive and capacitive pressure sensors have been employed for this application but with limited success due to above-mentioned reasons. Both, the device and the sensor were so placed that the sensing element was

  • Pressure Testing Balloon CathetersMensor

    Pressure Testing Intra-aortic Balloon Catheters. The intra-aortic balloon pump (IABP) is a mechanical device that assists the human heart in pumping blood by decreasing myocardial oxygen demand and increasing the cardiac output. The device is inserted into the aorta. It consists of a long, thin tube called a catheter with a balloon on the end