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Patents Published on 08/23/1988


See All Patents Issued In 1988


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NumberTitleIssue Date
4765305Control method of controlling an air/fuel ratio control system in an internal combustion engine
In a method for determining a control parameter of an air/fuel ratio control system of an internal combustion engine by means of an oxygen concentration sensor disposed in an exhaust system of the engine, the control parameter of the air/fuel ratio is det...
08/23/1988
4765306Combustion engine stroke identification system
A system for stroke identification of an internal combustion engine, comprising first sensor means for detecting given angles of a drive shaft; second sensor means for detecting given angles of a distributor shaft; third processing means for receiving sig...
08/23/1988
4765307Guide pulley base for wire saw
A guide pulley base for wire saw having a pair of main pulleys on the same plane, a pair of guidance pulleys in parallel to each other in such a way that each outer periphery of the guidance pulley is in contact with each parallel tangent line contacting ...
08/23/1988
4765308Venting system with natural convection cooling
A venting system using natural convection cooling is disclosed in which a sleeve is inserted within a flue pipe. The annulus between that sleeve and the flue pipe is sealed at an inside end and the flue pipe is provided with a plurality of vent holes in t...
08/23/1988
4765309Solar tracking device
A solar tracking device for causing a solar collector to track the sun during the course of the day and for automatically reorienting the collector to the east at the end of the day. The device (11) includes a pivotal support (13, 17) having a center of g...
08/23/1988
4765310Electrical and magnetic pain treatment device
Apparatus for alleviation of pain in a patient comprises a treatment head and a cabinet which houses driving and control circuitry for the treatment head. The treatment head has a central electrode and an outer electrode arranged concentrically with respe...
08/23/1988
4765311Wound retractor
A wound retractor comprises a split tube made up of two halves, holders of the tube halves, a mechanism for spreading the tube halves apart, incorporating a retainer for locking the tube halves in position. The holder of one tube half is shaped as a plate...
08/23/1988
4765312Endoscope
An endoscope includes a connecting assembly for connecting a syringe, for supplying a supplementary fluid to an orifice, formed on a distal end portion of an insertion portion. The connecting assembly comprises a hollow mount member which is formed to ext...
08/23/1988
4765313Objective part replaceable endoscope tip
An endoscope tip is fittable with either (a) a first kind of objective part, having an objective optical system provided with a rotary adjusting mechanism or (b) a second kind of objective part having an objective optical system provided with no rotary ad...
08/23/1988
4765314Device for introducing an endoscope or a surgical tool into body cavities with a feed for a flushing medium and an extractor for said flushing medium
A device for introducing an endoscope or a surgical tool into body cavities with a feed for a flushing medium and an extractor for said flushing medium, which permits as versatile as possible an application of the endoscope or tool and maintains a higher ...
08/23/1988
4765315Particle brake clutch muscle exercise and rehabilitation apparatus
A muscle exercise and rehabilitation apparatus includes a movable fixture against which an actuating force can be applied; a particle brake clutch for applying a braking force to the fixture in linear dependence on a braking current supplied thereto, in c...
08/23/1988
4765316Scalp stimulator
A portable electro-mechanical system stimulates the human scalp by distributing vacuum and vibration generated by apparatus cooperatively operationally confined within a system helmet. A rigid plastic helmet includes an internal housing region in which a ...
08/23/1988
4765317Anterior posterior headblock
Widely adjustable anterior posterior headblock in a halo vest fixation system of graphite and other material for fixation of a head about an orthopedic jacket with respect to the cervical region, such as for spinal trauma. A slotted adjustment carrier mem...
08/23/1988
4765318Orthopedic knee brace
An orthopedic knee brace formed as a tubular member made of a material having a core of foamed rubber material, which on both faces is laminated with textile fabric, is provided with an opening in the region intended to be located above the patella of the...
08/23/1988
4765319Hand splint
A multi-function hand splint for immobilizing a hand, wrist, and distal forearm of a user includes a sleeve made of a semi-rigid material. The sleeve includes an elongate shell of substantially C-shape with the opening of the C-shape located along the M-L...
08/23/1988
4765320Dynamic low profile splint
A dynamic low profile splint to support an injured hand and allow movement of the fingers and assist extension of the fingers to overcome stiffness and immobility in the hand....
08/23/1988
4765321Displacement sensor for a living body
A displacement sensor for a living body provides an improved stethoscope and/or cardiogram. The apparatus has a diaphragm which is placed on the surface of a living body, a permanent magnet located on the diaphragm, an inductor arrangement located adjacen...
08/23/1988
4765322Method of treating neurovegetative disorders and apparatus therefor
Disclosed is a method of treating a subject suffering from a neurovegetative disorder, which comprises the step of applying to the brain of said subject, a therapeutically effective amount of an electrically induced energy capable of influencing the veget...
08/23/1988
4765323Reflective surgical drape
A new, lightweight reflective surgical drape which is effective in reducing the rate of heat loss in human patients during a variety of surgical procedures is disclosed. The drape comprises a core layer of non-conductive aluminum and a first and second ad...
08/23/1988
4765324Sports mouthguard with shim
A new and improved mouthguard adapted to minimize shock to the teeth and head area. The mouthguard is comprised of a member having an approximate U-shape corresponding generally to the shape of the arch of the upper jaw. The member, which is of substantia...
08/23/1988
4765325Method and apparatus for determining respirator face mask fit
Method and apparatus for determining a face respirator fit for a particular respirator on a particular person wherein after first placing the respirator on the person's face, the air interiorly to the facepiece is partially evacuated while the subject hol...
08/23/1988
4765326Low-flow alarm system for powdered air-purifying respirator
A known powered air-purifying respirator has an alarm that is preset to be actuated whenever a Pitot static sensor indicates that the airflow has dropped below a safe level. The invention permits such a respirator to be used with either a tight-fitting fa...
08/23/1988
4765327Cartridge humidifier vent valve
The present invention comprises a cartridge humidifier assembly having a heating means for humidifying a gas supplied from a source and delivered to a patient. The cartridge humidifier has a cap which defines a chamber with a column. The cap includes a po...
08/23/1988
4765328Surgical instrument handle coupling
A coupling arrangement for selectively coupling and uncoupling the handle and the blade of a surgical instrument, such as a broach, includes a key projecting axially from the handle and receivable within a first recess portion in the blade to engage locki...
08/23/1988
4765329Intraocular lens insertion instrument
An intraocular lens insertion instrument for the implantation of intraocular lenses into the human eyes. The instrument is particularly intended for use in conjunction with the insertion of deformable intraocular lenses through extremely small incisions. ...
08/23/1988
4765330Method and apparatus for removal of plaque from blood vessels
Plaque accumulation in the blood vessels of a patient is removed by a laser beam acting directly on the plaque. The laser beam is conducted to the plaque by a hollow tubular catheter which is sufficiently resilient and flexible so that it may be snaked th...
08/23/1988
4765331Electrosurgical device with treatment arc of less than 360 degrees
An electrosurgical device for use in the treatment of tissue, particularly in the esophageal and anal regions of the body. The device comprises a multipolar probe body sized for passage into and within a body cavity whose tissue is to be treated without t...
08/23/1988
4765332Pullback atherectomy catheter system
An atherectomy apparatus and method is disclosed for the purpose of surgical excision of atheromas which typically consist of plaque deposits that cause narrowing (stenosis) of an artery. The apparatus, called a pullback atherectomy catheter, cuts and col...
08/23/1988
4765333Surgical methods and apparatus for bone removal
Surgical methods and apparatus for craniotomy flap removal and other delicate bone removal procedures utilizing a core drill driven in such a manner as to give a recognizable indication of near-penetration of the bone surface addressed, thereby preventing...
08/23/1988
4765334Surgical device for performing thoracostomies
An improved surgical device for performing thoracostomies. The device includes a holder for a curved stylet or a flexible tube and curved stylet combination which holder includes a two piece curved needle attached to a pair of handles, each handle includi...
08/23/1988
4765335Aneurysm clip
An improved cerebral aneurysm clip fabricated from titanium or titanium alloys and utilizing a guide member consisting of a straight wire-like bridging guide secured across a U-shaped bend formed in one or both of the two cross arms of the aneurysm clip. ...
08/23/1988
4765336Supplement arrangement for a slit-lamp apparatus for treating the eye by means of laser rays
A known slit-lamp apparatus includes a slit projector defining an optical axis and a corneal microscope. A supplement arrangement makes it possible to conduct a laser treatment with the known slit-lamp apparatus. A therapeutic laser beam is reflected coax...
08/23/1988
4765337Method of improving egg production in poultry hens
A method of improving egg production in poultry by irradiating poultry with energy levels, the first one of which is within a wavelength band of 600 to 670 nanometers and is delivered at a rate of at least 1013 quanta/second/cm2, and...
08/23/1988
4765338Reuseable heat transfer devices for the scalp
Improvements in reuseable, heat exchanging head pieces for cooling or heating substantially the entire hair bearing (scalp) area of the human head; improvements in a blank form for use in the manufacture of such product for the said purposes for filling w...
08/23/1988
4765339Closed loop dialysis system
An apparatus and a method of use for removing specified dialyzable components from a complex reference fluid such as, for example, blood. The invention includes a semi-permeable tubular dialysis membrane, which is inserted into the reference fluid. An equ...
08/23/1988
4765340Apnea detector
A medical apparatus for detecting apnea, in particular, in infants and children. The apparatus measures oxygen saturation in the blood and relates the measurement to a normal condition. The relationship is employed to indicate apnea....
08/23/1988
4765341Cardiac electrode with attachment fin
An implantable cardiac electrode for use in defibrillation and methods of implanting same. The electrode has a metallic mesh electrode surface surrounded by an insulating material. At the proximal end of the electrode there is defined a fin area designed ...
08/23/1988
4765342Timed drift compensation for rate volume monitor
A drift compensating circuit cooperates with an air-pressure-to voltage transducer. The first input of a comparison circuit is connected to the transducer, while a reference voltage is connected to the second input. The reference voltage is provided by an...
08/23/1988
4765343Apparatus for transferring electrical energy to and from living tissue
Apparatus for transferring electrical energy to and from living tissue comprises a glove of thin, flexible elastomeric material, which carries electrodes, electrically connected to a connector disposed at the cuff of the glove. The connector permits the e...
08/23/1988
4765344Blood transfer assembly
An apparatus for forming a blood droplet of a controlled, generally uniform size from a finger which has been pricked to draw blood includes a "funnel" member providing an upper edge across which the finger is drawn to deposit blood on a surface down whic...
08/23/1988
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