496 results about "Nasal bridge" patented technology

A nasal CPAP treatment apparatus is disclosed with a flow generator coupled to a nasal mask. The mask has a nasal cushion forming a nose-receiving cavity. The cushion has a triangularly-shaped frame of resilient material with a mask engaging portion connected by a side wall to a face engaging portion which has a nasal bridge region, a cheek region and a lip region. The cushion may have a portion of the side wall in the nasal bridge region being other than straight to provide an improved sealing in the nasal bridge region. A plurality of membranes, preferably three, of resilient material extend substantially around the triangularly-shaped frame. Some of the membranes are thicker in the lip region than in the nasal bridge region to improve fit of the cushion in use.

A breathing assistance apparatus is disclosed, for use with delivery of respiratory gases to a patient. The breathing assistance apparatus includes a patient interface, having a body section adapted to cover the nose, or nose and mouth of a patient and a sealing interface. The sealing interface includes at least an outer sealing member. The outer sealing member is adapted to attach to the body section in a sealing manner and has a substantially thin section in at least its nasal bridge region. The thin section is substantially thinner than the rest of the outer sealing member.

The patient interface comprises a mask body and a seal assembly. The seal assembly includes a flexible seal, and a rigid seal clip, the seal assembly being removably attached to the mask body via the rigid seal clip. The mask body and rigid seal clip are profiled to match the contours of a user's face so that the seal has a substantially constant wall depth.

A mask system includes a cushion adapted to seal with a face of a patient. In one form an unobtrusive full-face masks system is provided which is comfortable and has a wide fit range. The cushion may include a sealing structure (127-10) and a supporting structure (127-20). The supporting structure may include gaps or spacing in a nasal bridge region (NBR) and/or a lip region CHN.

A breathing assistance apparatus (200) is disclosed, for use with delivery of respiratory gases to a patient. The breathing assistance apparatus includes a patient interface, having a body section adapted to cover the nose, or nose and mouth of a patient and a sealing interface. The sealing interface includes at least an outer sealing member. The outer sealing member (201) is adapted to attach to the body section in a sealing manner and has a substantially thin section (203) in at least its nasal bridge region. The thin section is substantially thinner than the rest of the outer sealing member.

A patient interface is described which is reduces the pressure of the mask on the users face. The patient interface has a sealing interface having an inner sealing member and an outer sealing member. The inner and outer sealing members are adapted to seal around the facial contours of a user providing a sealed fluid communication to the user's respiratory tract. The inner and outer sealing members are at least continuously in contact with each other around the portions where the sealing interface contacts the user's facial contours. The inner sealing member may be provided with cut outs to provide additional flexibility to particular areas, such as the nasal bridge, upper lip or cheek regions and may be provided with a contoured edge to better fit the facial contours of a user.

An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

An interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of the user's nose. The mask seal includes first and second portions on respective first and second sides of a nasal region that contact opposing sides of the user's nose. The first and second portions each include supports that help maintain a shape of the mask seal. A pair of covers can be supported relative to the mask assembly and adjacent a respective one of the first and second portions of the mask seal. The covers limit expansion of the first and second portions of the mask seal in response to pressurized air within the mask seal. The supports of the first and second portions can transfer load from the mask seal to the covers.

Aspects of the present invention relate to a head-worn computer, comprising a removable and replacable adjustable nose bridge assembly, wherein the adjustable nose bridge assembly has at least three user adjustable features to adapt the adjustable nose bridge assembly to the user's nose, wherein a first adjustment of the at least three user adjustable features is adapted to move the adjustable nose bridge up and down relative a lens of the head-worn computer, wherein a second adjustment of the at least three user adjustable features is adapted to rotate a nose pad of the adjustable nose bridge about an axis substantially perpendicular to a top frame of the head-worn computer, and wherein a third adjustment of the at least three user adjustable features is adapted to flare the nose pad to the side of the axis.

A mask with a three-dimensional structure provides a one-piece structure with an upper portion, the middle portion, and a lower portion. A molded notch is located at both nasal bridge of the upper portion and chin of the lower portion. The upper portion and lower portion are reversely folded so as to form a pleat for supporting the middle portion as a three-dimensional structure mask. The three-dimensional structure mask meets the facial configuration design for accommodating to different facial shapes. Furthermore, the mask with a three-dimensional structure has a normal range of elasticity to conform to certain facial contours, therefore, decreases leakage occurrence, and increases filtration rate in a high pollution environment. More, the upper portion and the lower portion of the mask are folded in a reverse direction for avoiding a contacting pollution from touching the inner surface.

The invention discloses a mask machine which comprises a rack, a cloth feeding mechanism, a nose bridge strip feeding mechanism, a cloth pre-folding mechanism, a nose bridge strip cutting mechanism, abody welding forming mechanism and an ear hanging rope pressing mechanism. The cloth pre-folding mechanism is used for folding the cloth conveyed by the cloth feeding mechanism to form overlapped layer traces; the nose bridge strip cutting mechanism is used for cutting off a nose bridge strip and is arranged between the body welding forming mechanism and the cloth pre-folding mechanism; the bodywelding forming mechanism is used for crimping the nose bridge strip to the mask cloth folded with the overlapped layer traces and cutting into a semi-finished mask; and the ear hanging rope pressingmechanism is used for crimping the ear hanging rope to the cut semi-finished mask. According to the mask machine provided by the invention, conveying of the cloth and the nose bridge strip, folding ofthe cloth, cutting and crimping of the nose bridge strip, crimping of the nose bridge strip, cutting of the semi-finished mask and crimping of the ear hanging ropes can be automatically carried out,so that the use of personnel is reduced, and the mask manufacturing efficiency is improved.

The invention discloses a mask production line, which comprises a rack, wherein the rack is sequentially provided with a placing frame, a shaping mechanism, a cutting and flanging mechanism, an ultrasonic welding and cutting-off mechanism, an edge separating mechanism, a first overturning mechanism, a second overturning mechanism, an ear belt line welding mechanism, an ear belt folding mechanism and a discharging mechanism, wherein the placing rack for placing mask cloth and a nose bridge line; the shaping mechanism is used for shaping the mask cloth; the cutting and flanging mechanism is usedfor cutting off a nose bridge strip and flanging the mask cloth; the ultrasonic welding and cutting-off mechanism is used for welding the nose bridge strip in the mask cloth and cutting off the maskcloth; the edge separating mechanism is used for separating edges of the mask; the first overturning mechanism and the second overturning mechanism are connected with the edge separating mechanism andused for overturning the mask; the ear belt line welding mechanism is connected with the first overturning mechanism and the second overturning mechanism and used for welding ear belt lines to the mask; the ear belt folding mechanism is used for hot-pressing and shaping the ear belt lines; and the discharging mechanism is used for discharging the mask. According to the mechanism, the ear belt line welding is designed into two stations, so that the reasonable distribution of the working time of each station is realized, the station waiting time during mask production is reduced, and the production rate during mask production is increased.

The invention discloses a mask machine. The machine comprises a machine body provided with a mask body raw material feeding mechanism. A mask body raw material edge folding mechanism, a nose bridge line feeding and cutting mechanism, a mask body ultrasonic welding mechanism, a cloth type ear belt raw material feeding and cutting mechanism, an ear belt raw material waste edge collecting mechanism,an ear belt ultrasonic welding mechanism, an ear belt waste piece collecting mechanism and a finished mask cutting mechanism are sequentially arranged at the downstream of the mask body raw material feeding mechanism of the machine body. By adoption of the mask machine, all procedures are synchronously completed on one linear production line, linear assembly line machining of masks is achieved, and compared with a traditional mask machine, the mask machine has advantages that the size of the mask machine is effectively reduced, the space occupancy rate of the mask machine is greatly reduced, the procedures are simplified, and the production efficiency is greatly improved; and meanwhile, the ear bands on the produced mask are wide ear bands, so that the ears are not pressed, the wearing comfort is greatly improved, and the wearing sealing performance is good.

The invention relates to a recycling method of waste masks. The recycling method comprises the following steps that firstly, nose bridge strips of the waste masks are dismounted, mask bodies and hanging ropes of the waste masks are made into fragments, mask fragments are obtained, are dried and used for standby application, the materials of the cover bodies are non-woven fabric made of polypropylene resin with the fusion index being 40 g/10 min to 3000 g/10min, and the hanging ropes are polyurethane elastomers; and secondly, the dried mask fragments, a coupling agent, a reinforcing agent, an antioxidant, pigment, and an antibacterial agent are subjected to mixing machining and then subjected to extrusion machining through an internal mixing extruder, granulation is carried out, and finally, a polypropylene composite based on the waste masks is made. According to the method, the waste masks are recycled to be used for preparing the polypropylene composite, the environment pollution caused by the waste masks can be solved, and the polypropylene composite has the good mechanical property, the antibacterial capability and the like.

The invention discloses a novel respirator comprising a mask and a respiration filter device. The mask comprises a base, an outer cover and an inner cover, the edge of the outer cover is clamped on an outer upper platform of the base, the inner cover is clamped on an inner upper platform of the base, and the respiration filter device is clamped between the outer cover and the inner cover. The novel respirator further comprises an inflatable or deflatable hollow air bag which is detachably connected with the base. The shape of the air bag can be adjusted according to facial contours and shapes of nose bridges of different wearers, and adaptation of the respirator and comfort of the wearers are enhanced remarkably; meanwhile, the outer side face of an air bag body is provided with a soft sweat-absorbent pad which can absorb sweat generated by the wearer when using the novel respirator in an environment at high temperature; in addition, the latticed inner cover is directly connected with the base to form a respiratory air cushioning cavity, so that the structure of the respirator is simplified greatly; a one-way air outlet valve component is arranged in the middle of the inner cover, so that exhaled air of human bodies can be discharged out of the respirator to allow the wearers to breathe more smoothly.

The invention discloses a multipurpose combined mask with a filter disc easy to replace. The multipurpose combined mask can effectively replace a disposable mask and a mask with a single function. With the adoption of a zipper and a pocket, the pocket in a respiratory region is pulled open through the zipper according to the demand, different filter discs are put in the pocket and can meet rapid conversion of an N type mask, an R type mask and a P type mask, the filter discs are disposable independent commercial products in different specifications, the mask can have mosquito prevention, mist prevention, dust prevention, virus prevention and thermal insulation functions by means of the used different filter discs, a main mask body can be cleaned and can be repeatedly used, a replaceable nose bridge pressing bar which is easy to dismount is added, and the attaching, sealing and comfort properties of the mask with a face are improved. During use, all that is required is that a user pulls open the zipper, puts the filter disc in the pocket, zips up the zipper, puts on ear cuffs and shapes the nose bridge pressing bar.

The invention discloses a mask, and aims to provide a mask which is simple in structure, good in fitness, high in comfort and excellent in using effect. The mask comprises a mask face body, tensioningstraps are arranged on the left side and the right side of the mask face body, a nose bridge shaping strip is arranged at the upper end of the mask face body, at least one supporting shaping strip isfurther arranged on the mask face body, and two ends of the supporting shaping strip are fixed to the middles on the left side and the right side of the mask face body respectively. The mask providedby the invention is applied to the technical field of health protection articles.

The invention belongs to the technical field of protection device production, and particularly relates to a protective mask preparation method. The method comprises the following steps: S1, raw material preparation; S2, pressing and overlapping; S3, nose bridge strip sewing; S4, laminated cutting and hemming; S5, ear hanging rope fixing; S6, sterilization and packaging. According to the invention,an inner material forming link is added in the selection of conventional cloth of the mask; a plurality of traditional Chinese medicines with antibacterial effects are prepared and treated in an auxiliary material grinding manner, and are sprayed on the inner material, so that the three kinds of cloth are overlapped; on the basis that the filtering and shielding properties of the conventional melt-blown cloth are ensured, the whole antibacterial effect of the mask is effectively improved; under the conditions that the nose bridge strip is manufactured, solid glue is fused after spice is prepared, and metal wires serve as inner bones, the purpose of supporting the nose bridge strip can be guaranteed; meanwhile, the purpose of diffusing fragrance is achieved, the situation that peculiar smell is diffused due to the fact that air does not circulate when the mask is carried is improved, and the wearing comfort is improved.