Matches 201 - 250 out of 284 < 1 2 3 4 5 6 >
Match Document Document Title
4649930 Apparatus for beat buffering techniques varified by arrhythmias detection for stopaction frames of cardiac function  
From a heart sound signal input the occurrence of a first occurring heart sound is detected. Thereupon a predetermined heart sound enable window time is established, which for a first detection...
4644956 Physiological test probe  
A physiological test probe, in particular a vaginal electrode for the derivation of the foetal electrocardiogram, adapted to be transcervically fixed by means of points to the skin of the foetal...
4628939 Method and improved apparatus for analyzing heart activity  
A method and associated means for producing simultaneous electrical representations of the electrical and acoustical (heart sound) activity of the heart, in which a pickup device and associated...
4618986 Electronic stethoscope  
An electronic stethoscope is disclosed having a palm sized electronic component case with operating switches provided on opposite sides of the case for ease of operation. The stethoscope includes a...
4594731 Electronic stethoscope  
An electronic transducer in which the detected sounds are frequency multiplied to place them in a more favorable position for hearing within the auditory range, and in which lateral modulation by...
4592366 Automated blood pressure monitoring instrument  
An automated blood pressure monitoring instrument including a noise level detector which enables the instrument to have the sound sensing performance analogous to the human ear. Sounds, including...
4577638 Esophageal stethoscope  
An esophageal stethoscope includes a plastic tube having at least one bore extending over the length of the tube. The tube has a distal end which is insertable into the esophagus of the patient,...
4559953 Apparatus for detecting changes in shape of a body  
An apparatus for detecting and measuring changes in the shape of a wall of a body includes a detector capsule adapted for attachment to the wall and pneumatically connected to a volume transducer...
4549551 Heart rate detector  
An electronic heart sound detector in which a transducer detects the two primary heart beats of the heart cycle to produce a signal which is converted to a digital signal, filtered and the...
4546777 Heart sound detector and synchronization for diagnostics  
From a heart sound signal input the occurrence of a first occurring heart sound is detected. Thereupon a predetermined heart sound enable window time is established, which for a first detection...
4534058 Electronic stethoscope with automatic power shut-off  
In an electronic stethoscope which includes a pickup head, a microphone, a tubular accoustic connection between the pickup head and microphone, an amplifier receiving an input from the microphone,...
4528689 Sound monitoring apparatus  
Sound monitoring apparatus is described which provides a slowed down version of the original sound, e.g. a heart beat without changing the quality of the sound as perceived by a trained listener...
4528690 Compact hybrid stethoscope  
A compact hybrid stethoscope comprises a detachable headpiece for picking up auscultory sounds, a flexible tubing pneumatically connected to the headpiece for transmitting the auscultory sounds, an...
4517984 Esophageal probe  
An esophageal probe comprising, a shaft assembly including an elongated shaft, and a sound conducting medium extending from a distal location of the shaft assembly to a proximal location of the...
4498188 Electronic stethoscope for monitoring the operation of a prosthetic valve implanted in a patient's heart  
An electronic stethoscope for monitoring prosthetic valves for hearts includes a casing to which the center portion of a spring member is mounted. A weighted housing is mounted to the ends of the...
4476872 Esophageal probe with disposable cover  
An esophageal probe comprising, a disposable housing comprising an elongated sleeve defining a cavity, and a proximal connector. The probe has a permanent monitoring device comprising an elongated...
4458693 Monitoring system  
Apparatus and technique for monitoring physiological parameters. An acoustic sensor or microphone is placed in close proximity to the chest of a patient having one or two prosthetic heart valves....
4458687 Trans-telephonic acoustical and electrical heart valve monitor system  
A heart monitor for transtelephonic monitoring of heart activity and of the functioning of implantable heart valves. The monitor is provided with foam electrodes for monitoring heart activity and...
4446873 Method and apparatus for detecting heart sounds  
From a heart sound signal input the occurrence of a first occurring heart sound is detected. Thereupon a predetermined heart sound enable window time is established, which for a first detection...
4446872 Method and apparatus for determining systolic time intervals  
A method and apparatus for determining the systolic time intervals from the electrocardiogram (ECG) wherein initially there is detected at least the point in time of the Q-wave in the ECG....
4438772 Differential stethoscope  
A portable differential stethoscope includes small microphone elements which are attached to the stethoscope heads to pick up acoustic signals from the body. The sounds picked up by the stethoscope...
4428380 Method and improved apparatus for analyzing activity  
A method and associated means for producing simultaneous electrical representations of the electrical and acoustical (heart sound) activity of the heart, in which a pickup device and associated...
4428381 Monitoring device  
Apparatus for technique for monitoring physiological parameters. An acoustic sensor or microphone is placed in close proximity to the chest of a patient having one or two prosthetic heart valves....
4424815 Stethoscope-type recording system with stretched-in-time playback  
A system for recording heart sounds from a stethoscope-type device and reproducing selected heartbeats stretched out in time but with the same pitch as recorded. In one embodiment the heart sounds...
4409986 Esophageal cardiac pulse monitoring apparatus and method  
An esophageal cardiac pulse probe includes a lumen for insertion into the esophagus, the end of the lumen preferably being closed by a flexible diaphragm. Pressure variations imparted to the fluid...
RE31377 Disposable esophageal and tracheal multi-probes  
A disposable esophageal probe incorporating the capability to detect ECG waveforms, heart sounds and to measure body core temperature is described. The probe incorporates a plastic tube with...
4401125 Stethoscope securing pad  
A pad for securing the head of a stethoscope to a patient's skin comprising, a generally annular sheet of flexible material larger than the head and having an outer edge, an inner edge defining an...
4383534 Vital signs monitoring apparatus  
An endotracheal tube has detection devices including a temperature detector, ECG detector and the heart sounds and breath sounds detector positioned proximate the interior end of the tube. A...
4378022 Energy-frequency-time heart sound analysis  
A method for determining the operability status of heart valves IN VIVO. Accoustical data emanating from a heart valve to be analyzed is gathered. The data are divided into time slices, and the...
4377727 Stethoscope having means for measuring pulse frequency  
An improved stethoscope having means for measuring the frequency of a series of pulses, such as human heart pulses, is disclosed, in the use of which such pulses are detected simultaneously with...
4369794 Probe with electrocardiographic monitoring  
A tubular disposable probe, having a central lumen having a plurality of conductive pathways extending longitudinally of the probe from the proximal end to the distal end, and a reusable connector...
4362166 Disposable medical probe and connector  
A disposable flexible medical device or probe and a reusable connector are provided. The disposable probe comprises a flexible tube of resilient plastic having a central major lumen and two or more...
4362164 Electronic pick-up device for transducing electrical energy and sound energy of the heart  
A stethoscope transducer applicable as a conventional audio transducer and as a phonocardiogram transducer has a body which on one side mounts an electrode carrying chest bell and which on an...
4304240 Esophageal probe with dual sound detection  
An esophageal probe comprising, an elongated hollow sleeve defining a cavity. The probe has a first vibration detection device at a first distal location in the sleeve cavity, and a second...
4304239 Esophageal probe with balloon electrode  
An esophageal probe comprising, a shaft assembly having an elongated shaft with an inflation lumen extending along the shaft, and an inflatable balloon on the shaft communicating with the inflation...
4301809 Esophageal monitoring apparatus  
This application discloses an esophageal stethoscope for audibly and electronically monitoring a patient's cardiovascular functions. The stethoscope comprises a flexible tube which is dimensioned...
4295471 Non-invasive vascular waveform transducer and apparatus  
Apparatus is disclosed herein for non-invasively monitoring arterial waveforms, such as the waveform produced by blood flow through the brachial artery in a human subject. The invention includes a...
4254302 Electronic stethoscope  
A portable, lightweight, self-contained stethoscope includes: (a) an enclosure containing a speaker, and having an acoustic wave outlet connectible to stethoscope flexible tubing, (b) an...
4220160 Method and apparatus for discrimination and detection of heart sounds  
A method and apparatus for transposition of heart sounds to a range easily detectable by the human ear and suitable for transmission, for discrimination of low intensity or brief sounds, and for...
4214589 Method and apparatus for blood pressure measurement including a true Korotkov sound detector  
Indirect blood pressure measurement for a systolic or diastolic blood pressure is accomplished by making use of a true Korotkov sound determination. When three or four Korotkov sound signals are...
4129125 Patient monitoring system  
A portable system for monitoring the vital signs of a patient such as ECG, temperature, respiration, heart beat etc. consisting of a substantially flat housing having either exposed electrodes or...
4094308 Method and system for rapid non-invasive determination of the systolic time intervals  
A non-invasive method and means for determining beat-by-beat assessments of a patient's cardiac performance by measuring the "pre-ejection phase" (PEP) and the "left ventricular ejection time"...
3989895 Stethoscope transducer  
An improved stethoscope having a transducer attached to it for converting mechanically produced heart sound transmissions into an electrical signal without interrupting the mechanically produced...
3985121 Heart detective  
The heart detective described is a portable device for detecting and indicating when heart sounds emanating directly from a physical area under auscultation are representative of a heart disorder....
3951136 Multiple purpose esophageal probe  
A single esophageal probe incorporating multiple different function components whereby a single multi-purpose device is provided. A temperature sensor projects through and beyond the open inner end...
3921623 HEART BEATING EXAMINING APPARATUS  
The heart beating examining circuit comprises a combination of a heart beating measuring circuit, a heart pulse measuring circuit and a circuit interconnecting these two circuits. The heart beating...
3878832 Method and apparatus for detecting and quantifying cardiovascular murmurs and the like  
A system for extracting information concerning a defect manifested by random noise from a composite signal that includes a periodic portion and a random noise portion. The composite signal is...
3868954 HEMADYNAMOMETER MICROPHONE  
A hemadynamometer microphone comprising a microphone cap, an elastic support member with the outer periphery thereof snugly fitted in the inner periphery of said microphone cap, a ceramic element...
3867925 EXPENDABLE STETHOSCOPE  
Stethoscope means for removable attachment to the skin surface of the body of a patient comprising bell means including a generally cup-shaped housing shell forming a chamber, and conduit means...
3858575 BODY NOISE DETECTOR  
A body noise detector, includes a housing having a first chamber therein containing a microphone capsule and a second reduced-pressure chamber therein closed on one side by a resilient deformable...
Matches 201 - 250 out of 284 < 1 2 3 4 5 6 >