88results about "Tracheae" patented technology

The invention discloses a bionic TENG sensor unit for an artificial throat and a preparation method thereof, and relates to the field of artificial throats, and the sensor unit comprises a gradient micro-dome friction layer, a strain amplification layer, an electrode layer and a back cavity substrate layer. The gradient micro-dome array realizes gradual contact through gradient change of height and diameter; the strain amplification layer converts vertical vibration into horizontal strain by using a cantilever beam-sliding block structure; the back cavity array selectively amplifies vibration at a specific frequency based on the Helmholtz resonance principle. The invention further provides a corresponding preparation method. The preparation method comprises the steps of back cavity forming, electrode deposition, microstructure manufacturing, surface treatment and the like. The sensor has the advantages of high sensitivity, good frequency selectivity and strong durability, and is particularly suitable for detecting weak laryngeal vibration signals of laryngeal patients.

An endoscopic printing device comprising: a printing head having: a nozzle for outputting a biomaterial; a central conduit connectable to a source of the biomaterial and connected to the nozzle, the central conduit being flexible; ribs disposed around the central conduit and spaced apart from one, a rib of the ribs defining three or more guiding apertures extending axially through the rib, the ribs being interconnected to one another; and cables extending through the guiding apertures, ends of the cables attached to the central conduit, the cables configured to be engaged to an actuator for controlling motion of the endoscopic printing head; and an actuation system engaged to the cables, the actuation system including actuators each engaged to a respective one of the cables, the actuators operable to vary a tension in one or more of the cables relative to a remainder of the cable to bend the central conduit.

The present technology includes an implant for treating excessive central airway collapse (ECAC) of an airway. The implant can comprise a wire-form stent configured to be positioned within the airway. The stent can comprise a C-shaped sidewall, and is configured to be positioned within the airway such that the C-shaped sidewall is positioned proximate a cartilaginous portion of the airway and presses outwardly against the cartilaginous portion.

The invention relates to a device (100) for laryngectomised persons, comprising a respiratory prosthesis (120) comprising an adapted tube (122) for connecting to a new incision that is made in the neck and extends to the pharynx at the base of the tongue, and comprising at least one biocompatible membrane (124) for filtering liquids and solids and preventing them from passing through the tube (122), wherein a coupler (126) for coupling to the new incision is connected internally to the distal end of the tube (122) and externally to at least one pipe (130a, 130b) for exterior communication with a tracheostoma coupler (110), which comprises a sealingly and detachably accommodated HME filter (112), such that the new-incision coupler (126) is connected to the tracheostoma coupler (110).

The present invention provides a bionic composite artificial trachea, comprising: an artificial tracheal wall; the artificial tracheal wall comprising a biological patch layer and an absorbable biomaterial layer from the inside out; a tracheal stent disposed on the outside of the artificial tracheal wall; and a gasket wrapping the edge of the tracheal stent. The bionic composite artificial trachea, with the biological patch layer and the absorbable biomaterial layer as the artificial tracheal wall, combined with the arrangement of the tracheal stent, not only provides good ventilation, but also can slightly deform with airway pressure and has a certain degree of elasticity, so that the patient's head can move freely, without the trouble of having to fix the neck after traditional tracheal surgery; at the same time, the arrangement of the gasket can prevent the end of the tracheal stent from bruising surrounding organs due to friction during the initial implantation period; in summary, the bionic composite artificial trachea provided by the present invention can be applied clinically and can solve the problem of the lack of an effective tracheal substitute for primary tracheal reconstruction during the resection of an extra-long trachea in current tracheal surgery in a single operation.

A dysphonia treatment tool includes a pair of clamping portions that have a front surface piece arranged on a front surface of an incised thyroid cartilage, a rear surface piece arranged on a rear surface of the incised thyroid cartilage, and an end surface piece connecting the front surface piece and the rear surface piece, engaged with each of the incision ends of the incised thyroid cartilage;, and a bridging portion that bridges the pair of clamping portions. Wherein on an opposite surface to the abutting surface of the end surface piece, the bridging portion is bridging in a region from the one end side to the other end side, or in a region from the one end side to a side in a midway from the one end side to the other end side on the opposite surface to abutting surface of the end surface piece.

Stoma interface devices and methods for manufacturing the same for total laryngectomy and select partial laryngectomy patients that fit directly into the tracheostoma where the devices provide a support which can interface with standardized tracheostoma components (e.g., speaking valves) and offer hands-free alternatives for tracheoesophageal (TE) speech production. Devices hereof comprise a body having a self-expanding frame coated in multi-durometer silicone elastomers to form a distal portion with a distal flange configured to engage the tracheostoma of the patient, and a proximal portion configured to interface with the tracheostoma components.

The invention provides an anti-displacement tracheal stent and a human body implantation method, solves the problem that the tracheal stent is easy to deviate and misplace in the prior art, limits the whole stent body in human tissues through a positioning bulge, avoids displacement of the tracheal stent, and comprises a sleeve-shaped stent body, a connecting column extending outwards is arranged on the outer side wall of the support body, a positioning protrusion is arranged at the outer end of the connecting column, and the cross section area of the positioning protrusion is larger than that of the connecting column. The stent body, the connecting columns and the positioning protrusions are formed by integrally weaving silk threads made of memory metal materials and covering the silk threads with films.

A stent for a respiratory organ includes a bioabsorbable polyester copolymer. The bioabsorbable polyester copolymer is a polyester copolymer having residues of two kinds of ester bond forming monomers as main constituent units, and where the two kinds of ester bond forming monomers are referred to as monomer A and monomer B, respectively, an R value given by the following formula is 0.25 or larger and 0.99 or smaller: R = [AB] / (2[A][B]) 100. In the formula, [A] is a mole fraction (%) of monomer A residues in the polyester copolymer; [B] is a mole fraction (%) of monomer B residues in the polyester copolymer; and [AB] is a mole fraction (%) of structures (A-B and B-A) in which a monomer A residue and a monomer B residue are adjacent to each other in the polyester copolymer.

The application discloses a kind of bionic TENG sensor unit for artificial throat and preparation method thereof, it is related to artificial throat field, the sensor unit includes gradient microdome friction layer, strain amplification layer, electrode layer and back cavity substrate layer.Gradient microdome array realizes progressive contact by the gradient change of height diameter;Strain amplification layer utilizes cantilever beam-sliding block structure to convert vertical vibration into horizontal strain;Back cavity array is selectively amplified to specific frequency vibration based on Helmholtz resonance principle.The application also provides a corresponding preparation method, including back cavity forming, electrode deposition, microstructure manufacturing and surface treatment and the like steps.The sensor has the advantages of high sensitivity, good frequency selectivity and strong durability, and is particularly suitable for detecting weak laryngeal vibration signals of laryngeal patients.

The present application relates to the technical field of medical devices. An airway stent includes a stent body and a covering film provided on the stent body; the stent body includes a waist stent segment and a dense mesh bare stent segment provided at an end portion of the waist stent segment; the covering film is provided on the waist stent segment; the mesh density of the dense mesh bare stent segment is higher than the mesh density of the waist stent segment. According to the airway stent in the present application, the stimulation of the airway stent to the inner wall of the trachea can be reduced, thereby effectively avoiding the growth of granulation tissue, and preventing the airway lumen from being narrowed again.

Techniques for processing measurement data streams for a person's speech apparatus are disclosed. The measurement data streams can be recorded by different sensor modalities, such as audio recordings or articulatory measurements, for example, which have an observable which quantifies a characteristic property of the vocal tract. The measurement data streams can be processed by means of a machine-learned model in order to obtain a temporal sequence of feature vectors in an articulatory feature space. These specific feature vectors enable a variety of applications, such as articulation training, therapeutic applications in the event of speech restrictions, for instance after a stroke, vocal training or speech synthesis.

Techniques for processing measurement data streams from a person's vocal tract are revealed. These data streams can be acquired through various sensor modalities, such as audio recordings or articulatory measurements, which contain an observable that quantifies a characteristic of the vocal tract. The processing of these data streams can be performed using a machine-learned model to obtain a temporal sequence of feature vectors in an articulatory feature space. These specific feature vectors enable diverse applications, such as articulation training, therapeutic applications for speech impairments (e.g., after a stroke), vocal training, and speech synthesis.

A surgical technique, non-invasively and safely and quickly inserting a T-shaped tube into a stenotic trachea, is capable of replacing a traditional rigid bronchoscope with a harmless fiber bronchoscope dispense with additional surgical wound incision, utilization of an existing tracheostoma combined with the available guiding materials, the T-shaped tube can be readily inserted into the trachea; therefore, the surgical technique, non-invasively and safely and quickly inserting the T-shaped tube into the stenotic trachea elucidated in the invention is capable of safely and quickly manuvering patients with obvious subglottic stenosis to improve the prognosis without additional neck wound incision.

The present invention relates to the technical field of medical devices. An airway stent includes a stent body and a covering film provided on the stent body; the stent body includes a waist stent segment and a dense mesh bare stent segment provided at an end portion of the waist stent segment; the covering film is provided on the waist stent segment; the mesh density of the dense mesh bare stent segment is higher than the mesh density of the waist stent segment. According to the airway stent in the present invention, the stimulation of the airway stent to the inner wall of the trachea can be reduced, thereby effectively avoiding the growth of granulation tissue, and preventing the airway lumen from being narrowed again.

An endoprosthesis configured to shift between a collapsed configuration and an expanded configuration may include a tubular scaffold formed from a single filament knitted about a central longitudinal axis and defining a length from a proximal end to a distal end, the tubular scaffold including a plurality of rows of loops and a plurality of rows of rungs arranged around the central longitudinal axis in an alternating fashion; and a polymeric covering extending along the tubular scaffold. Each row of loops and each row of rungs extends longitudinally along the tubular scaffold between the proximal end and the distal end. The tubular scaffold includes a first cutout region extending along a majority of the length of the tubular scaffold and a second cutout region extending along a majority of the length of the tubular scaffold. The polymeric covering is uninterrupted along the first cutout region and the second cutout region.

Disclosed are a metal inner core, a placeholder and a preparation method for a hip joint bone cement placeholder. By designing the metal inner core including a frame body and a supporting portion inside the hip joint bone cement placeholder, the strength of the placeholder is enhanced; due to the fact that the metal inner core is hollow, the antibiotic bone cement can fill the inner portion of the metal inner core, the content of antibiotics in the placeholder cannot be affected, and infection is effectively controlled; the hollowed-out structure endows the placeholder with lighter weight and stronger structural strength, and meanwhile, the material cost is effectively reduced; and according to the preparation method of the hip joint bone cement placeholder, the size design of the placeholder and the metal inner core is carried out, so that the joint matching degree between the placeholder and the patient is high.

The invention discloses a neck-worn artificial throat which comprises a neck-worn shell, a key shell, a display screen shell and a sensor, the key shell and the display screen shell are fixedly connected with the two ends of the neck-worn shell respectively, and containing spaces are formed in the neck-worn shell, the key shell and the display screen shell; a circuit board is fixedly arranged in the accommodating space of the key shell, a microphone, an audio coding chip, a CPU (Central Processing Unit), a communication module and a decoder are integrated on the circuit board, and a microphone port and keys are arranged on the key shell; a battery and a loudspeaker are fixedly arranged in the containing space of the display screen shell, a loudspeaker opening and a charging interface are formed in the display screen shell, and a display screen is fixedly arranged on the outer side of the display screen shell. The neck-worn artificial throat provided by the invention can be directly worn on the neck, and the sensor can be accurately positioned and adhered to the neck, so that the signal acquisition position is kept unchanged all the time, and the sensor can adaptively follow the dynamic change of the neck or the throat to prevent the signal from being interfered.

A sound generation system is disclosed. The sound generation system includes a housing with a first opening and a second opening. The housing defines an air passage between the first opening and the second opening. The sound generation system includes a movable member disposed within the housing. The movable member is configured to vibrate in response to air flowing through the air passage. The sound generation system includes a conversion module configured to convert vibrations of the movable member into an electrical signal. The sound generation system includes a speaker module configured to convert the electrical signal into sound and output the sound into the user's oral cavity. The sound generation system is configured such that, during use, air pressure at or near the second opening corresponds to air pressure within the user's oral cavity.

The invention, which relates to a filter element (1) for respiratory gas conditioning with a speech function, is based on the objective of providing a filter element (1) for use with a tracheotomized or laryngectomized person, wherein the filter element (1) is robust, easy to operate, and inexpensive to manufacture. This objective is achieved by the housing (2) comprising a first housing part (5) and a second housing part (6) connected to the first housing part (5), the first opening (3) being arranged in the second housing part (6), the first housing part (5) being a single piece comprising an outer ring (7), a central upper part (8), and elastically deformable webs (9) arranged between the outer ring (7) and the upper part (8).

The present technology includes an implant for treating excessive central airway collapse (EC AC) of an airway. The implant can comprise a wire-form stent configured to be positioned within the airway. The stent can comprise a C-shaped sidewall, and is configured to be positioned within the airway such that the C-shaped sidewall is positioned proximate a cartilaginous portion of the airway and presses outwardly against the cartilaginous portion.

This invention discloses an artificial laryngeal sensor based on magnetic repulsion coupling of a dual-layer heterogeneous magnetic thin film and its fabrication method. The sensor includes upper and lower sensing units, each having a first flexible magnetic layer that has been directionally magnetized and a flexible hard magnetic thin film layer that has been patterned and magnetized to form a microscopic magnetic domain array. The two layers, with their like poles facing each other, generate a uniform magnetic repulsion force, forming a dynamically adjustable gap between the triboelectric layers. This gap can passively and adaptively change with the intensity of laryngeal vibration: during strong vibration, the repulsion force surges to prevent contact saturation, while during weak vibration, a small local gap is maintained to preserve high sensitivity. This invention solves the problems of uneven magnetic force and discomfort in traditional magnetic repulsion schemes through all-thin film fabrication and patterned magnetization technology, achieving a balance between high signal fidelity, wide dynamic range, and ultimate wearing comfort, making it particularly suitable for wearable artificial laryngeal speech acquisition systems.

Self-expanding, tubular (tapered or constant diameter), oval or elliptical (not circular) airway stents suitable for placement under open or minimally invasive approaches within patients of various sizes and of various species, and methods for their placement in a tracheobronchial tree of a patient. The airway stent may be provided in various lengths and have an oval or elliptical cross-sectional shape that is either constant or variable in both short axis dimensions. The airway stents are particularly suited for treating patients with large airway obstructions in whom the natural airway cross-sectional dimensions are oval or elliptical rather than circular. The airway stent allows for more anatomic filling of the natural airway lumen, reduces the need to oversize the airway stent diameter and therefore reduces subsequent stent fatigue and fracture, and improves stent-tracheal wall contact to minimize gaps that lead to mucus trapping and chronic infections with subsequent tissue ingrowth and airway obstruction.

An airway support device of the present disclosure can be attached to tracheal and / or bronchial cartilage on opposing sides of a tracheal and / or bronchial wall to pull the tracheal and / or bronchial cartilages toward each other to reconstruct and / or reshape to a normal anatomy across the membranous tracheal and / or bronchial wall and thus relieving tension across the tracheal and / or bronchial wall. The airway support device can include at least two longitudinal strips that extend longitudinally along and are attached (e.g,, sutured) to the trachea and / or bronchus on opposite sides of the tracheal and / or bronchial wall. Pairs of lateral strips extending from each of the longitudinal strips can be attached to each other under tension. The tracheal and / or bronchial wall can be attached (e.g., sutured) to the lateral strips to open the airway of the trachea and / or bronchus.

The application belongs to the technical field of medical devices, and is a kind of airway stent, comprising a stent body and a covering film arranged on the stent body, characterized in that the stent body comprises a fixed stent section and a movable stent section arranged at the end of the fixed stent section, and the covering film is arranged on the fixed stent section; at least one movable part in the form of an opening is arranged on the movable stent section, and the radial dimension of the movable stent section is greater than that of the fixed stent section. According to the airway stent in the application, the movable stent section with a radial dimension greater than that of the fixed stent section is arranged to increase the anchoring force of the airway stent, so that the airway stent is not prone to displacement, and the movable part in the form of an opening is arranged to increase the deformation space of the movable stent section, reduce the stimulation of the airway stent to the inner wall of the airway, and prevent the growth of granulation tissue.

Technologies as described herein are directed towards generating optimized stent designs for treatment of tubular anatomical structures. In an exemplary computing system, the system obtains imaging data comprising images representative of anatomical structures. The system then generates a plurality of models based upon the imaging data. The models are then clustered based upon similar characteristics of the models. Certain fit parameters are applied to the models in each cluster and an optimized stent shape is generated for each cluster, wherein each optimized stent shape is representative of the models within the cluster.

A tracheoesophageal sounding prosthesis comprising: a tubular body comprising: a one-way valve, a first protruding element and a second protruding element, where the second protruding element is displaceable along a longitudinal axis of the tubular body at least between: a first position in which the one-way valve is inserted into the first protruding element and a second position in which the one-way valve is inserted into the second protruding element; wherein at least a portion of the outer surface of the tubular body and / or at least a portion of the second protruding element comprises a coupling element configured to couple the second protruding element and the tubular body at least in the first position and the second position.

A respiratory stent comprising a bioabsorbable polyester copolymer, the bioabsorbable polyester copolymer being a polyester copolymer having two types of ester bond-forming monomer residues as main constituent units, and when the two types of ester bond-forming monomers are monomer A and monomer B, respectively, the R value represented by the following formula is 0.25 to 0.99: R=[AB] / (2[A][B])×100, in which [A] is the molar fraction (%) of monomer A residue in the polyester copolymer, [B] is the molar fraction (%) of monomer B residue in the polyester copolymer, and [AB] is the molar fraction (%) of a structure (AB and BA) in which a monomer A residue and a monomer B residue are adjacent to each other in the polyester copolymer.

A stent may include a radially expandable tubular frame having a first end region, a second end region, an intermediate region positioned between the first end region and the second end region, and a lumen extending therethrough. The radially expandable tubular frame is configured to expand from a radially collapsed configuration to a radially expanded configuration. A plurality of cover strips are positioned along at least one of the first end region, the intermediate region, and the second end region. In the radially collapsed configuration, the plurality of cover strips completely cover the radially expandable tubular frame, and the plurality of cover strips are configured to be separated from each other in the radially expanded configuration to expose portions of the radially expandable tubular frame therebetween.