38 results about "Laryngeal cartilage" patented technology

A method for endotracheal intubation allows resuscitation of the patient to continue during intubation. A curved guide having a mask and a ventilation port is inserted into the patient's mouth and upper airway. The patient is initially resuscitated by supplying a flow of air / oxygen through the mask and simultaneously applying cardiac chest compressions. An endotracheal tube is inserted over the distal end of a fiber optic probe. Resuscitation continues without interruption while the fiber optic probe and endotracheal tube are advanced along the guide into the patient's airway, thereby allowing the physician to carefully guide the fiber optic probe and endotracheal tube to a position past the larynx while resuscitation continues.

A tracheal tube positioning apparatus is located relative to a patient's trachea by engaging the patient's Adam's apple. Indicia on relatively movable sections of the positioning apparatus provides an indication of the distance between the patient's mouth and the patient's larynx. A flexible guide rod is moved through a distance corresponding to the distance between the patient's mouth and larynx, as determined by the positioning apparatus. A magnet is utilized to attract a leading end portion of the guide rod. A plurality of emitters may be disposed in an array around the patient's Adam's apple. Outputs from the emitters are detected by a detector connected with the guide rod and by a detector connected with the tracheal tube. Alternatively, a plurality of detectors may be disposed in an array around the patient's Adam's apple to detect the output from an emitter connected with the guide rod and by an emitter connected with the tracheal tube. Expandable elements may be connected with the guide rod and / or tracheal tube to steer movement along an insertion path.

A device for maintaining an airway in a patient. This device includes a mask having a resilient conformable peripheral portion that is shaped such that the mask forms a seal with the larynx when the mask is positioned in the laryngo pharynx to thereby prevent ingress of extraneous fluids into the larynx. The peripheral portion of the mask define at least one cavity for providing fluid communication to the esophagus when the mask is inserted into the laryngo pharynx. An airway tube is connected to or formed with the mask for passing gas to the larynx when the mask is properly inserted into the laryngo pharynx. The airway tube preferably is curved as it leaves the mask.

A laryngoscope and flexible viewing device having means to carry an endotracheal tube into a patient and method of using the device are provided. The device allows a single user to view the interior of a patient's anatomy and change the view to better determine the path for. The device can be used by a single individual to simultaneously open the pathway to a patient's trachea and then deliver an intubation device, such as an endotracheal tube, without the assistance of another person. The device provides several options for the practitioner to both visualize the patient's larynx and deliver an endotracheal tube into the trachea, especially in patients considered to have difficult anatomy to intubate. The viewing device in a preferred embodiment is a fiberoptic scope and the device includes a pivoting means to allow the viewing means to provide a more panoramic view of the patient's throat area.

An endotracheal positioning device having an elongated triangular shape with a superior surface that projects towards the junction of the vocal cords, a posterior surface that projects towards the endotracheal tube or the posterior-interior surface of the cricoid cartilage, and generally straight right and left lateral surfaces that project anterior lateral on either side toward the vocal cords. The lateral surface are of appropriate dimensions for attachment of laryngeal surface electrodes. The device has a center opening or channel that may wrap around, slide over, or may otherwise be attached to an endotracheal tube or to a high pressure ventilatory apparatus of any type. The device has an attachment or docking recess on its proximal aspect for an actuating rod or a fiber optic laryngoscope. This allows continuous viewing of the larynx for positioning, insertion, and continuous monitoring of the vocal cords during surgical procedures.

A pneumatically controlled intubation mat includes laryngoscope-mounted controls. A body supporting mat is positioned beneath the patient undergoing endotracheal intubation and is dimensioned to extend beneath the patient's torso and head while in a substantially upward-facing prone position. An inflatable bladder is positioned between the base and the mat board which is adapted to elevate the mat board with respect to the base as the bladder is inflated and thereby expands. An expandable headrest is affixed to a top surface of the mat board and is positioned for placement beneath the patient's head. The headrest further includes a head support air bladder which is operative to elevate the patient's head as the head support bladder is inflated and the headrest thereby expands. A source of compressed air is in fluid communication with the torso support bladder and the head support bladder by way of an air distribution manifold. The valve means on the air distribution manifold selectively conduct pressurized air from the source to the torso support bladder and the head support bladder whereby the patient's torso / head position may be altered to achieve optimal anatomical alignment of the patient's larynx for intubation. The valve means are preferably electromechanical valves which are actuated by thumbswitches located on a housing which is snap-fit to the top of the intubation handle.

A more effective larynx or vocal fold examination is facilitated when an image recording device, preferably a color image recording device comprising three modes is made available, a face-recording recording mode with a low recording frequency or image repetition frequency, respectively, but with a high resolution, a further face-recording recording mode with a higher image repetition frequency but with a lower resolution, and a one-dimensional, for example, row-recording mode also having a higher image repetition frequency. By the switchability of the image recording device between those modes the examining doctor is capable of first getting an overview by means of the slower image recording mode, wherein this may also be done in color, as due to the slower recording frequency this mode is not subject to the illumination problems like the high-speed camera.

The present invention concerns improved laryngoscope blades, particularly for use in the intubation of patients, for example orotracheal and nasotracheal intubation, and which allow viewing of a portion of the mouth, the pharynx, and the larynx of a patient, and depress the tongue and the structures of the floor of the mouth in order to prevent the tongue of the patient from obstructing the view during examination.

Provided is an apparatus and method for remotely diagnosing laryngeal disorder / laryngeal state by using the speech codec. The apparatus provides a remote larynx diagnosing apparatus and method deciding laryngeal disorder / laryngeal state by using parameters, such as a Linear Prediction Coefficient (LPC) and a pitch, which are transmitted from a system using a speech codec. The apparatus includes a user information / speech codec information collecting block; a parameter extracting block for extracting the diagnosis parameter in bitstream transmitted from the network; a storing block for pre-storing a diagnosis parameter considering the type of the speech codec and a bit rate; a parameter comparing block for comparing the diagnosis parameter extracted from the parameter extracting block with the information of storing block; and a laryngeal disorder / laryngeal state determining block for diagnosing presence of laryngeal disorder / laryngeal state.

An improved electro-larynx includes a linear transducer and / or an improved waveform generator. The improved electro-larynx sets up a sound wave within the pharynx of the user which closely approximates a normal glottal excitation. The linear transducer preserves the harmonic structure of a glottal source wave generated by the waveform generator and translates it into a vibration. The transducer includes an armature assembly, suspension assembly, and coupler disk coupled together to move in concert. The armature assembly vibrates as a function of the desired and input glottal source wave, which in turn causes an immediate and corresponding vibration of the coupler disk. The suspension assembly constrains armature movement to one dimension and provides additional compliance. The coupler disk includes a substantially flat surface suitable for engaging the surface of a user's throat and vibrates as a linear function of the input glottal source wave. The improved waveform generator produces a relatively good approximation of an actual glottal source waveform by preferably deriving it from actual voice data and having the effects of the modulation of the vocal tract removed. As a result, the harmonic structure of the glottal source waveform has overtones which drift in frequency, similar to normal glottal excitations. The waveform generator also allows user adjustment of the pitch and amplitude of the glottal source wave and smoothes out any distortions caused by the process of obtaining the glottal data used to generate the glottal source wave. The waveform generator bolsters the frequency response at the high end of the spectrum to compensate for any roll-off, yielding a frequency response spectrum of about 20–5 Khz. The responsiveness of the linear transducer allows the glottal source wave's pitch, amplitude, and harmonic structure to be communicated through the coupler disk and realistic glottal source waves to be transduced into the user's pharynx, resulting in the production of substantially normal speech.

An artificial larynx processes a microphone's output coherently with the stimulus used to excite the vocal cavities. The use of coherent processing, implemented with a matched filter or a comb filter, allows complete removal of all of the stimulus from the recovered audio for a much cleaner reproduction. The coherent processing is preferably carried out in a digital signal processor (DSP) interfaced to an audio analog-to-digital (A / D) converter and other circuitry, including digital-to-analog converters (DACs). A microphone feeds the A / D, while the DACs feed amplifiers driving loudspeakers.

The adjustable airway mannequin with visual feedback models the human skull, maxilla, upper teeth, lower teeth, jaw, spine and airway mounted on a backboard. Adjustments can be made to the height of the maxilla, the height of the upper teeth, the tension and distance of the jaw movement representing mouth opening, the anterior-posterior displacement of the jaw relative to the maxilla and skull, the presence or absence of the upper teeth and lower teeth, the range of motion of the spine, and tension on the airway to mimic a variety of anatomies. The mannequin may include one or more electronic proximity and position sensors that operate through magnetic field sensing, accelerometry, and optical sensing to monitor one or more of face length, jaw length, mouth opening, jaw tension, larynx position, head height off the table, and spine mobility.

The invention relates to a remote switch type artificial electronic larynx; a switch (101) is separated from an equipment main body, the equipment main body is fixed at the neck part of a user, the switch (101) is arranged on the finger or in a pocket of the user; the equipment comprises a remote switch, wireless transmitting / receiving devices (102, 103), waveform generation and processing system(104, 10), a power amplifying circuit (105, 9) and a minitype electricity-power conversion system (106). The remote switch transmits a switch signal to the equipment main body wirelessly, after the equipment is started, the wave forms generated by the waveform generation and processing system are converted into an analog signal which is transmitted to the power amplifying circuit, and then the analog signal is converted into mechanical vibration by the electricity-power conversion system after being power-amplified, the vibration is applied to the neck part of a patient to generate glottis waves, the wave forms form voice outside the lips through the modulation of the tongue, nasal cavity, oral cavity, lips and the like.

The invention discloses a simulated training device for larynx micro-surgery, and relates to the technical field of medical apparatus and instruments. The device comprises a throat fixing module used for fixing an in-vitro throat specimen, and a laryngoscope fixing module used for fixing a laryngoscope, wherein the throat fixing module comprises a first base, a first support rod, a first connecting base and a throat fixing base, and the inclination angle and orientation of the throat fixing base are adjustable; and the laryngoscope fixing module comprises a second base, a second support rod, a second connecting base and a laryngoscope fixing base, and the height, inclination angle and orientation of the laryngoscope fixing base are adjustable. The device can be suitable for the operation training process of the larynx micro-surgery. With the device, low-seniority doctors can operate the in-vitro throat specimen in practice, so that the operation experience is accumulated, and the voice microsurgery skill is improved. In addition, the device has the advantages that the operation is convenient, and the use is flexible.

The invention belongs to auxiliary instruments of medical test and research, in particular relates to an embedding bottom box special for embedding a total larynx gross specimen through collodion, and mainly solves the technical problems of complex structure, difficulty of taking out the specimen and incapability of adjusting angle of the specimen. The embedding bottom box is formed by fixing a bottom plate and four side plates, wherein two fixed rails, two fixed rods and a hanging rod are also arranged in the bottom box; the fixed rails are vertically connected to walls of two corresponding side plates through screws; the fixed rods are provided with a plurality of screw holes; the upper end parts of the fixed rods are provided with V-shaped grooves; the two fixed rods are arranged in rails of the two fixed rails respectively and are fixed on the walls of the side plates by using screws through screw holes; the two end parts of the hanging rod are provided with V-shaped clamping grooves; and the hanging rod is arranged in the V-shaped grooves of the two fixed rods through clamping grooves. The embedding bottom box has the advantage of simple structure, the specimen can be easily taken out, the angle of the specimen can be flexibly adjusted according to requirements of total larynx slices, and the like.

An innovative one-piece videolaryngostroboscope that provides slow motion visualization and detailed analysis of the vocal cords movements, which are imperceptible to the naked eye due, by means of a video camera with stroboscopic; said apparatus is used to perform examinations in patients, aiming to assess the incidence of larynx cancer. The invention including a processor base; an optics tube with a built-in light sources, a built-in video camera; a microphone, an auxiliary pedal and software.

The invention relates to bead-blasting essence for fritillary and loquat flavor cigarettes and a preparation method of the bead-blasting essence. The bead-blasting essence for the fritillary and loquat flavor cigarettes is prepared by blending caprylic capric triglyceride, a fritillaria cirrhosa extracting solution, loquat oil and fritillary and loquat supplement essence. The preparation method comprises the following steps: firstly, taking the fritillaria cirrhosa and preparing the fritillaria cirrhosa extracting solution by using a CO2 supercritical extraction method; secondly, taking the loquat and preparing the loquat oil by using a water vapor distillation method; thirdly, preparing the fritillary and loquat supplement essence; fourthly, preparing the bead-blasting essence. The bead-blasting essence for the fritillary and loquat flavor cigarettes, prepared by the preparation method disclosed by the invention, has better flavor characteristics of Chuanbei Pei Pa Koa, can achieve the health-care effect and reduce the harm of smoking to larynx; in addition, the preparation method of the bead-blasting essence has the advantages of simplicity and convenience, stable product qualityand capability of being widely applied to the bead-blasting essence.

In order to improve the speech quality of an electric larynx (EL) speaker, the speech signal of which is digitized by suitable means, the following steps are carried out: a) dividing a single-channel speech signal into a series of frequency channels by transferring it from a time domain into a discrete frequency domain; b) filtering out the modulation frequency of the EL by way of a high-pass or notch filter, in each frequency channel; and c) back-transforming the filtered speech signal from the frequency domain into the time domain and combining it into a single-channel output signal.

A cervical collar includes a collar member for encircling the neck of a patient in restrict movement of the head and neck of the patient and a removable closure disposed in a front portion of the collar member. The closure, when removed from the front portion of the collar member, provides an opening for accessing the larynx of the patient to perform a tracheotomy.

The invention provides a laryngeal function repairing implanting system. The laryngeal function repairing implanting system comprises a support board, force-bearing rings and fixing nail sheaths, wherein the support board is provided with fixing holes, an outer side and an inner side; the force-bearing rings are of tubular structures; each fixing nail sheath comprises a near end, a sheath body and a far end; the force-bearing rings are mounted at the outer sides of the sheath bodies of the fixing nail sheaths; the fixing nail sheaths are embedded in the fixing holes of the support board, the near ends of the fixing nail sheaths are arranged at the outer side of the support board, and the far ends of the fixing nail sheaths are arranged at the inner side of the support board. The laryngeal function repairing implanting system can be conveniently fixed to the residual end of the cartilagines larynges at two sides of the thyroid cartilage through fixing nails and a nail gun which are matched with the laryngeal function repairing implanting system, then the laryngeal function repairing is carried out, the surgical operation is simplified, the surgical time is shortened, and the surgical curative effects are improved.

A dynamic diagnosis and treatment simulation device for human body pharynx and throat comprises a skull model designed according to the structure and the position of a human body, a soft palate model,a tongue model, a tonsil model and a throat model, wherein the soft palate model, the tongue model, the tonsil model and the throat model are located in an inner cavity of the skull. The skull modeluses the rear wall of the coronal pharyngeal cavity-throat model as a boundary and is provided with a front part and a rear part which are connected through a locking device, the front part is a basepart to which the soft palate model, the tongue model, the tonsil model and the throat model are attached, the rear part is provided with a linkage device, and the linkage device is electrically connected with the soft palate model, the tongue model, the tonsil model and the throat model. The dynamic diagnosis and treatment simulation device can be used for assisting in learning of laryngopharyngeal diagnosis and treatment technologies, including indirect laryngoscope, hard lens, foreign body removal and the like.

The invention provides a steam ejector. The steam ejector is composed of three parts of a diffuser pipe, an ejecting nozzle and a suction chamber; the diffuser pipe structurally comprises an exit section expanded gradually, a larynx part with uniform section and an entrance section reduced gradually; the ejecting nozzle structurally comprises an ejecting nozzle outlet, an ejecting nozzle larynx part, an ejecting nozzle steam inlet pipe, an ejecting nozzle spindle, a sleeve, a driving steam inlet, an end thread, a hand wheel and a steam inlet pipe thread; the suction chamber structurally comprises a suction chamber shell and a steam inlet; the outlet of the suction chamber shell is connected with the entrance section of the diffuser pipe, the other end of the entrance section of the diffuser pipe is connected with the larynx part of the diffuser pipe, and the other end of the larynx part is connected with the exit section of the diffuser pipe; one end of the ejecting nozzle spindle is the hand wheel, the other end of the ejecting nozzle spindle is in a circular cone shape, the top end of the circular cone shape points to the ejecting nozzle larynx part located on the end part of thesteam inlet pipe, two sections of threads are located on the ejecting nozzle spindle, the thread close to the hand wheel is matched with the end thread on the sleeve, the thread in the middle is matched with the steam inlet thread, and the steam inlet is slidably attached to the inner wall of the sleeve.

The adjustable airway mannequin with visual feedback models the human skull, maxilla, upper teeth, lower teeth, jaw, spine and airway mounted on a backboard. Adjustments can be made to the height of the maxilla, the height of the upper teeth, the tension and distance of the jaw movement representing mouth opening, the anterior-posterior displacement of the jaw relative to the maxilla and skull, the presence or absence of the upper teeth and lower teeth, the range of motion of the spine, and tension on the airway to mimic a variety of anatomies. The mannequin may include one or more electronic proximity and position sensors that operate through magnetic field sensing, accelerometry, and optical sensing to monitor one or more of face length, jaw length, mouth opening, jaw tension, larynx position, head height off the table, and spine mobility.

An external laryngeal pressure applying device of a self-retaining laryngoscope, disclosed in the invention, comprises a connecting mechanism, a connecting rod and a pressing mechanism, the connecting mechanism is installed on a supporting rod of the self-retaining laryngoscope, the upper end of the connecting rod is rotationally connected with the connecting mechanism, the lower end of the connecting rod is rotationally connected with the pressing mechanism, and the connecting rod is a telescopic rod. The pressing mechanism is installed on the supporting rod for supporting the laryngoscope through the connecting mechanism and the connecting rod, the laryngeal body can be pushed and downwards pressed to press the laryngeal cartilage, the anatomical position is changed, and the glottis is fully exposed; and the device is simple in structure and has practicability.