CN1688358A

CN1688358A - Elbow for mask assembly

Info

Publication number: CN1688358A
Application number: CN 03821156
Authority: CN
Inventors: 乔安尼·伊丽莎白·德鲁; 梅姆杜赫·居内伊; 阿迈勒·雪莉·阿马拉辛哈; 佩里·戴维·利思戈; 安东尼·米迦勒·金; 唐纳德·达基因; 格雷厄姆·布鲁斯·阿斯顿; 博里沃耶·柳博耶维奇
Original assignee: Resmed Pty Ltd
Current assignee: Resmed Pty Ltd
Priority date: 2002-09-06
Filing date: 2003-09-05
Publication date: 2005-10-26
Also published as: NZ585457A; NZ585510A; NZ585826A; CN101485914B; CN101485914A

Abstract

An elbow assembly for a respiratory mask includes an elbow (160), an air inlet (162), an air outlet (164), and a baffle (161) separating the air inlet from the air outlet. A mask assembly includes a mask cushion (30) including at least one gusset and an aperture (42) connected to an elbow assembly (20).

Description

The bend pipe of face shield assembly

The application requires the U.S. Provisional Application No.60/424 of submission on November 8th, 2002,695, the U.S. Provisional Application No.60/474 that submitted on June 3rd, 2003, the U.S. non-provisional application No.10/235 of 928 and 2002 on JIUYUE submission in 6,, 846 priority, and require the calendar year 2001 U.S. Provisional Application No.60/317 that submits to of JIUYUE 7 days successively, 486 and the calendar year 2001 U.S. Provisional Application No.60/342 that submits to of December 28 days, 854 priority.The full content that comprises above-mentioned each application herein by reference.

Technical field

The present invention relates to be used for non-intrusion type positive airway pressure (NPPV) and sleep disordered breathing (SDB) state, such as the mask frame and the bend pipe of the mask system of the continuous positive airway pressure (CPAP) of obstructive sleep apnea (OSA) treatment.

Background technology

Adopt NPPV treatment SDB, initiate (for example,, 944,310, comprising its full content hereby by reference) by Sullivan referring to U.S.Pat.No.4 such as OSA.The device of this treatment comprises pressure fan, this pressure fan via air duct just to press to patient interface (patientinterface) air feed.Patient interface can adopt several forms, such as nose formula face shield (nasalmask) and muzzle face shield (nose and mouth mask).The patient must have on face shield to receive treatment whole night when sleep.

Face shield typically comprises duricrust (rigid shell) or framework and separates with framework and to the facial soft facial contact pad (face-contactingcushion) that forms sealing of patient facial.Framework and contact mat limit the cavity that holds nose or nose and oral area.Face shield is by headband (headgear) location, and this headband generally includes along the lateral aspect of face back to the end or the device of the belt at top.

Kwok etc. (U.S.Pat.No.6,112,746) have described nose formula face shield and hood pad (maskcushion), comprise its full content hereby by reference.Hood pad is a kind of framework that is substantially triangular in shape, and stretches out film from this framework.Mask frame (mask frame) has scalloped edge, and hood pad is connected to mask frame by this edge.The nose that film has a user holds hole wherein.Film and leg of frame edge separate, and its outer surface has and the essentially identical shape in edge.

(PCT applies for AU01/00746 to Frater etc., publication No. is WO 01/97893) mask system of supplying gas to user described, comprise the hitch (suspension mechanism) that makes energy relative motion between facial contact pad and the mask frame, comprise its full content hereby by reference.This hitch also provides predetermined power with mask pressure, contact mat amount of movement or the two variation to contact mat.

In the breath cycle process, the patient sucks the air of mainly being made up of nitrogen and oxygen mixture, comprises the CO of higher proportion and breathe out ₂Gaseous mixture.By in the nose formula mask system of respiratory nasal, in mask cavity, may accumulate CO the patient ₂And cause undesirable CO ₂Resorb.Therefore, people have developed the various air vents that are used for face shield.CO in mask cavity ₂Amount is with the quantitative changeization of dead space (dead-space) in streamer mode and the mask cavity in air vent geometry, face shield geometry, the face shield.

Typically, face shield utilizes frictional fit (friction fit) and is connected to air duct.In view of pressure fan typically is placed on patient's bedside, so air duct is generally at least 1 meter long.Sometimes, the mobile of air duct may breakseal.And some patients wish pipeline a position (for example process on its head), and other patients wish that it is in other position (for example, the left side or the right).Therefore, people develop the swivel elbow that is used for some face shields.

Swivel elbow typically comprises: (i) cylindrical shape first has the axle of aiming at first direction and is used to be connected to air duct; And (ii) cylindrical shape second portion, have the axle of aiming at second direction and the framework that is used to be connected to face shield.

First and second directions typically are mutually the right angle.First has the external diameter of the internal diameter that is slightly smaller than typical air duct, thereby pipeline can socket (overfit) first and its position of maintenance of passing through to rub.The free end of second portion is fit to pass the aperture (orifice) in the mask frame.This known swivel elbow typically comprises air vent.Some air vents are simple holes, and (Figure 10 a), some other is then more complicated, such as being used for ResMed ULTRA MIRAGE such as those air vents in the Puri tan-Bennett SOFTFIT face shield ^Those air vents of face shield.

The prior art swivel elbow that comprises simple air vent, (Figure 10 a), the problem of Respironics CONTOUR-DELUXE (Figure 10 c) and prior art Tiara ADVANTAGE bend pipe (Figure 10 b) is, may only walk around face shield and directly passes from air vent from the air of pressure fan such as Puritan-BennettSOFTFIT.When the patient replenished expensive oxygen, this problem was especially outstanding.Quite a few oxygen of supplying with bend pipe just passes from air vent, and does not enter face shield.

Fig. 8 a, 8b, 9a and 9b represent the bend pipe by the prior art that is used for STANDARD and MODULAR face shield of ResMed Limited making respectively.Fig. 8 c, 8d, 9c and 9d represent respectively to be used for ULTRA MIRAGE by what ResMed Limited made ^And MIRAGE ^The bend pipe of the background technology of VISTA face shield.Figure 11 a to 11f represents WHISPER rotation I that is made by Respironics and the prior art bend pipe that rotates in the II face shield.The prior art face shield of the SERENITY face shield that Figure 12 and 13 expressions are made by DeVilbiss, wherein nasal cavity (nasalcavity) inside comprises and is used to make deflector (baffle) B that enters the gas and changing direction.

Comprise the more dead angle that the have gusset face shield of hood pad of (gusset) will have big cavity and cause thus than the face shield that does not have gusset, and other is all identical.Therefore, in having the face shield assembly of gusset, pay particular attention to ventilation, to guarantee rinsing out enough CO by continuously flowing into of fresh air to face shield ₂

Because face shield used by the sleeper,, comprise those noises that the gas ventilation by face shield causes so also wish to reduce or eliminate noise from all noise sources.

Kwok etc. (PCT/AU98/00067, publication No. is WO 98/34665) have described face shield and air vent, comprise its full content hereby by reference.In one form, this air vent comprises the softness insertion sheet (insert piece) with a series of apertures.

Drew etc. (PCT/AU00/00636, publication No. is WO 00/78381) disclose and have been used for carrying out face shield end that fluid communication (fluid communication) is connected and arranging at an angle the adapter that is used for the steam line end that is connected with the channelling of breathing gas supply line fluid with the face shield end with breathing mask inside a kind of comprising.This adapter also comprises the air scour vent passages, and it has to be adjacent to and carries out the face shield end of fluid communication with breathing mask inside or constitute the inlet of a face shield end part and carry out the outlet of fluid communication with atmosphere.This outlet comprises the surface, inside that forms with in abutting connection with the level and smooth prolongation of adapter outer surface.This draft outlet is positioned at the adapter side away from the face shield end, has the annular cross section of common part, and is fit to flush gas along being basically perpendicular to the face shield end longitudinal axis and being basically parallel to steam line y direction guiding steam line end.

Moore etc. (No. 60/502,509, the provisional application in the co-applications of submitting on August 12nd, 2002) have described the mask system that comprises the swivel elbow with air vent, comprise its full content hereby by reference.

Correa etc. (U.S.Pat.No.6,119,694) disclose the nose formula face shield assembly with miniature nostril sealing (miniature nare seal).This face shield assembly comprises the pipeline receptor (conduit receptor) that is connected to air supply pipe.This pipeline receptor downstream is the hole (bore) that holds the sleeve (stem) with opposing flanges.Flange will enter gas and be divided into a plurality of passages, thereby make gas offer in a plurality of area of space in the sealed inside of nostril one.

Though air vent described in the above-mentioned reference file and adapter are for having a small amount of dead angle, provide enough sucked air and ventilations such as the face shield that does not have gusset, but they may be not enough to have relatively large dead angle, such as providing air to suck and CO in the face shield that has gusset ₂Remove.Therefore, there be the swivel elbow and the face shield assembly that can overcome above-listed problem in this area.

Summary of the invention

First technical scheme of the present invention aims to provide a kind of bend pipe that is used for face shield, and it provides the air inlet of improvement and the streamer mode of exhaust stream.

Second technical scheme of the present invention aims to provide a kind of bend pipe, and it comprises deflector (baffle).

The 3rd technical scheme of the present invention aims to provide and a kind ofly comprises the face shield air vent and extend to the face shield bend pipe of the deflector the mask cavity from bend pipe.

Another technical scheme of the present invention aims to provide a kind of swivel elbow that comprises the face shield air vent, and wherein swivel elbow comprises the structure of guaranteeing directly not arrive from the fresh air of pressure fan air vent.

Another technical scheme of the present invention aims to provide the swivel elbow assembly of a kind of easy assembling and dismounting.

Another technical scheme of the present invention aims to provide a kind of winding pipe assembly that adopts can realize sucking better the face shield assembly that can suck air and/or eliminate the exhalation air better.

Another technical scheme of the present invention aim to provide a kind of adopt winding pipe assembly to user and/or the more quiet face shield assembly of room-mate.

Another technical scheme of the present invention aims to provide a kind of winding pipe assembly that comprises the breathing mask of bend pipe, comprises the another part that is fit to engage the part of air supply pipe and is connected to face shield separably.The further formation of this bend pipe will enter gas and supply with air inlet in the respiratory nasal cavity that is limited by face shield and the air vent that separates by crooked deflector and air inlet.

Another technical scheme of the present invention aims to provide a kind of face shield bend pipe, comprising: the part that (i) is connected to air supply pipe; (ii) be connected to the part of mask cavity; (iii) will enter the air inlet in the gas supply of breathing cavity; (iv) remove CO ₂Air vent; And (the deflector of v) separating air inlet and air vent.

Another technical scheme of the present invention aims to provide a kind of deflector that is used for bend pipe and face shield assembly, is used for the air inlet and the exhaust stream of guide surface shade assembly.

A technical scheme more of the present invention aims to provide a kind of face shield assembly that comprises mask frame, hood pad and winding pipe assembly.

Other technical scheme of the present invention, feature and advantage following detailed in conjunction with the drawings will become obviously, and they illustrate principle of the present invention as a part of this disclosure by example.

Description of drawings

Fig. 1 is the exploded cross section views according to the respiratory mask assembly of a specific embodiment of the present invention;

Fig. 2 is the assembling cross-sectional view of respiratory mask assembly shown in Figure 1;

Fig. 3 a is the axonometric chart according to the annulus of a specific embodiment of the present invention;

Fig. 3 b is the cross-sectional view of the frame part of respiratory mask assembly shown in Figure 2;

Fig. 4 a is the cross-sectional view according to a specific embodiment of swivel elbow of the present invention;

Fig. 4 b is the front view of the swivel elbow shown in Fig. 4 a;

Fig. 4 c is the amplification cross-sectional view of the deflector bottom shown in the swivel elbow of Fig. 4 b;

Fig. 4 d is the axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Fig. 4 e is the axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Fig. 5 a is the front view of respiratory mask assembly shown in Figure 2;

Fig. 5 b is the left view of the respiratory mask assembly shown in Fig. 5 a;

Fig. 5 c is the right view of the respiratory mask assembly shown in Fig. 5 a;

Fig. 5 d is the vertical view of the respiratory mask assembly shown in Fig. 5 a;

Fig. 6 a is the front view of the breathing mask framework shown in Fig. 5 a;

Fig. 6 b is the rearview of the breathing mask framework shown in Fig. 6 a;

Fig. 6 c is the preceding axonometric chart of the breathing mask framework shown in Fig. 6 a;

Fig. 6 d is the back axonometric chart of the breathing mask framework shown in Fig. 6 a;

Fig. 6 e is the cross-sectional view of the breathing mask framework shown in Fig. 6 a along the 6e-6e line;

Fig. 6 f is the right view of the breathing mask framework shown in Fig. 6 a;

Fig. 6 g is the cross-sectional view of the breathing mask framework shown in Fig. 6 b along the 6g-6g line;

Fig. 6 h is the cross-sectional view of the breathing mask framework shown in Fig. 6 a along the 6h-6h line;

Fig. 6 i is the cross-sectional view of the breathing mask framework shown in Fig. 6 b along the 6i-6i line;

Fig. 6 j is the cross-sectional view of the breathing mask framework shown in Fig. 6 g along the 6j-6j line;

Fig. 6 k is the cross-sectional view of the breathing mask framework shown in Fig. 6 a along the 6k-6k line;

Fig. 6 l is the upward view of the breathing mask framework shown in Fig. 6 b;

Fig. 6 m is the amplification cross-sectional view according to the air vent of the specific embodiment of the breathing mask framework shown in Fig. 6 g;

Fig. 7 a is the front view of the front of the swivel elbow shown in Fig. 4 a;

Fig. 7 b is another front view of the swivel elbow shown in Fig. 7 a;

Fig. 7 c is the cross-sectional view of the swivel elbow shown in Fig. 7 a along the 7c-7c line;

Fig. 7 d is the right view of the swivel elbow shown in Fig. 7 a;

Fig. 7 e is the vertical view at the top of the swivel elbow shown in Fig. 7 a;

Fig. 7 f is the cross-sectional view of the swivel elbow shown in Fig. 7 b along the 7f-7f line;

Fig. 7 g is the back axonometric chart of the swivel elbow shown in Fig. 7 a;

Fig. 7 h is the preceding axonometric chart of the swivel elbow shown in Fig. 7 a;

Fig. 7 i is the upward view of the swivel elbow shown in Fig. 7 a;

Fig. 8 a is the rearview of prior art swivel elbow;

Fig. 8 b is the rearview of prior art swivel elbow;

Fig. 8 c is the rearview of background technology swivel elbow;

Fig. 8 d is the rearview of background technology swivel elbow;

Fig. 9 a is the cross-sectional view of the front of the swivel elbow shown in Fig. 8 a;

Fig. 9 b is the cross-sectional view of the front of the swivel elbow shown in Fig. 8 b;

Fig. 9 c is the cross-sectional view of the front of the swivel elbow shown in Fig. 8 c;

Fig. 9 d is the cross-sectional view of the front of the swivel elbow shown in Fig. 8 d;

Figure 10 a is the cross-sectional view of prior art swivel elbow;

Figure 10 b is the cross-sectional view of background technology swivel elbow;

Figure 10 c is the rearview of prior art swivel elbow;

Figure 11 a is the lateral front view of the part of prior art swivel elbow;

Figure 11 b is the left view of the swivel elbow shown in Figure 11 a;

Figure 11 c is the amplification cross-sectional view of the air vent on the swivel elbow shown in Figure 11 a;

Figure 11 d is the exploded view of the part of another prior art swivel elbow;

Figure 11 e is the cross-sectional view of the swivel elbow shown in Figure 11 d of confined state;

Figure 11 f is the upward view of the swivel elbow shown in Figure 11 e;

Figure 12 is the rearview of prior art respiratory mask assembly;

Figure 13 is a respiratory mask assembly shown in Figure 12 cross-sectional view along the 13-13 line;

Figure 14 is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 15 a is a swivel elbow front view shown in Figure 14;

Figure 15 b is the vertical view of the swivel elbow shown in Figure 15 a;

Figure 15 c is the upward view of the swivel elbow shown in Figure 15 a;

Figure 15 d is the right side view of the swivel elbow shown in the 15a;

Figure 15 e is the right side view of the swivel elbow shown in Figure 15 d;

Figure 15 f is the cross-sectional view of the swivel elbow shown in Figure 15 e along the 15f-15f line;

Figure 15 g is the cross-sectional view of the swivel elbow shown in Figure 15 a along the 15g-15g line;

Figure 15 h is the part enlarged drawing of the swivel elbow shown in Figure 15 g;

Figure 15 i is the preceding axonometric chart of the swivel elbow shown in Figure 15 a;

Figure 15 j is the back axonometric chart of the swivel elbow shown in Figure 15 a;

Figure 16 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 16 b is the back axonometric chart of the swivel elbow shown in Figure 16 a;

Figure 17 a is the front view of the swivel elbow shown in Figure 16 a;

Figure 17 b is the vertical view of the swivel elbow shown in Figure 17 a;

Figure 17 c is the upward view of the swivel elbow shown in Figure 17 a;

Figure 17 d is the right view of the swivel elbow shown in Figure 17 a;

Figure 17 e is the rearview of the swivel elbow shown in Figure 17 a;

Figure 17 f is the cross-sectional view of the swivel elbow shown in Figure 17 e along the 17f-17f line;

Figure 17 g is the cross-sectional view of the swivel elbow shown in Figure 17 a along the 17g-17g line;

Figure 17 h is the part enlarged drawing of the swivel elbow shown in Figure 17 g;

Figure 17 i is another preceding axonometric chart of the swivel elbow shown in the slightly different Figure 16 a of angle;

Figure 17 j is the back axonometric chart of the swivel elbow shown in the slightly different Figure 16 b of angle;

Figure 18 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 18 b is the back axonometric chart of the swivel elbow shown in Figure 18 a;

Figure 19 a is the front view of the swivel elbow shown in Figure 18 a;

Figure 19 b is the vertical view of the swivel elbow shown in Figure 19 a;

Figure 19 c is the upward view of the swivel elbow shown in Figure 19 a;

Figure 19 d is the right view of the swivel elbow shown in Figure 19 a;

Figure 19 e is the rearview of the swivel elbow shown in Figure 19 a;

Figure 19 f is the cross-sectional view of the swivel elbow shown in Figure 19 e along the 19f-19f line;

Figure 19 g is the cross-sectional view of the swivel elbow shown in Figure 19 a along the 19g-19g line;

Figure 19 h is the part enlarged drawing of the swivel elbow shown in Figure 19 g;

Figure 19 i is another preceding axonometric chart of the swivel elbow shown in the slightly different Figure 18 a of angle;

Figure 19 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 18 b of angle;

Figure 20 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 20 b is the back axonometric chart of the swivel elbow shown in Figure 20 a;

Figure 21 a is the front view of the swivel elbow shown in Figure 20 a;

Figure 21 b is the vertical view of the swivel elbow shown in Figure 21 a;

Figure 21 c is the upward view of the swivel elbow shown in Figure 21 a;

Figure 21 d is the right view of the swivel elbow shown in Figure 21 a;

Figure 21 e is the rearview of the swivel elbow shown in Figure 21 a;

Figure 21 f is the cross-sectional view of the swivel elbow shown in Figure 21 e along the 21f-21f line;

Figure 21 g is the cross-sectional view of the swivel elbow shown in Figure 21 a along the 21g-21g line;

Figure 21 h is the part enlarged drawing of the swivel elbow shown in Figure 21 g;

Another preceding axonometric chart of swivel elbow shown in the slightly different Figure 20 a of Figure 21 i angle;

Figure 20 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 20 b of angle;

Figure 22 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 22 b is the back axonometric chart of the swivel elbow shown in Figure 22 a;

Figure 23 a is the front view of the swivel elbow shown in Figure 22 a;

Figure 23 b is the vertical view of the swivel elbow shown in Figure 23 a;

Figure 23 c is the upward view of the swivel elbow shown in Figure 23 a;

Figure 23 d is the right view of the swivel elbow shown in Figure 23 a;

Figure 23 e is the rearview of the swivel elbow shown in Figure 23 a;

Figure 23 f is the cross-sectional view of the swivel elbow shown in Figure 23 e along the 23f-23f line;

Figure 23 g is the cross-sectional view of the swivel elbow shown in Figure 23 a along the 23g-23g line;

Figure 23 h is the part enlarged drawing of the swivel elbow shown in Figure 23 g;

Another preceding axonometric chart of swivel elbow shown in the slightly different Figure 22 a of Figure 23 i angle;

Figure 23 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 22 b of angle;

Figure 24 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 24 b is the back axonometric chart of the swivel elbow shown in Figure 24 a;

Figure 25 a is the front view of the swivel elbow shown in Figure 24 a;

Figure 25 b is the vertical view of the swivel elbow shown in Figure 25 a;

Figure 25 c is the upward view of the swivel elbow shown in Figure 25 a;

Figure 25 d is the right view of the swivel elbow shown in Figure 25 a;

Figure 25 e is the rearview of the swivel elbow shown in Figure 25 a;

Figure 25 f is the cross-sectional view of the swivel elbow shown in Figure 25 e along the 25f-25f line;

Figure 25 g is the cross-sectional view of the swivel elbow shown in Figure 25 a along the 25g-25g line;

Figure 25 h is the part enlarged drawing of the swivel elbow shown in Figure 25 g;

Another preceding axonometric chart of swivel elbow shown in the slightly different Figure 24 a of Figure 25 i angle;

Figure 25 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 24 b of angle;

Figure 26 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 26 b is the back axonometric chart of the swivel elbow shown in Figure 26 a;

Figure 27 a is the front view of the swivel elbow shown in Figure 26 a;

Figure 27 b is the vertical view of the swivel elbow shown in Figure 27 a;

Figure 27 c is the upward view of the swivel elbow shown in Figure 27 a;

Figure 27 d is the right view of the swivel elbow shown in Figure 27 a;

Figure 27 e is the rearview of the swivel elbow shown in Figure 27 a;

Figure 27 f is the cross-sectional view of the swivel elbow shown in Figure 27 e along the 27f-27f line;

Figure 27 g is the cross-sectional view of the swivel elbow shown in Figure 27 a along the 27g-27g line;

Figure 27 h is the part enlarged drawing of the swivel elbow shown in Figure 27 g;

Another preceding axonometric chart of swivel elbow shown in the slightly different Figure 26 a of Figure 27 i angle;

Figure 27 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 26 b of angle;

Figure 28 a is the preceding axonometric chart according to the swivel elbow of another specific embodiment of the present invention;

Figure 28 b is the back axonometric chart of the swivel elbow shown in Figure 28 a;

Figure 29 a is the front view of the swivel elbow shown in Figure 28 a;

Figure 29 b is the vertical view of the swivel elbow shown in Figure 29 a;

Figure 29 c is the upward view of the swivel elbow shown in Figure 29 a;

Figure 29 d is the right view of the swivel elbow shown in Figure 29 a;

Figure 29 e is the rearview of the swivel elbow shown in Figure 29 a;

Figure 29 f is the cross-sectional view of the swivel elbow shown in Figure 29 e along the 29f-29f line;

Figure 29 g is the cross-sectional view of the swivel elbow shown in Figure 29 a along the 29g-29g line;

Figure 29 h is the part enlarged drawing of the swivel elbow shown in Figure 29 g;

Another preceding axonometric chart of swivel elbow shown in the slightly different Figure 28 a of Figure 29 i angle;

Figure 29 j is another back axonometric chart of the swivel elbow shown in the slightly different Figure 28 b of angle;

Figure 30 a is the side view according to the swivel elbow of another specific embodiment of the present invention;

Figure 30 b is the right view of the swivel elbow shown in Figure 30 a;

Figure 30 c is the vertical view of the swivel elbow shown in Figure 30 a; And

Figure 30 d is the part upward view of the swivel elbow shown in Figure 30 a.

The specific embodiment

Fig. 1 represents the exploded cross section views of the face shield assembly 5 of the specific embodiment according to the present invention.The nose 3 of user 1 will be worn and be centered on substantially to face shield assembly 5 by user 1.This face shield assembly 5 comprises, for example mask frame 10, the hood pad 30 that is connected to the swivel elbow assembly 20 of mask frame 10 and is connected to mask frame 10.This swivel elbow assembly is fit to be connected to the air hose 168 to user 1 supply breathing gas.

Hood pad 30 is designed to substantially around user nose 3, and is reducing to greatest extent and/or avoiding and exert pressure to face shield 30 peripheries when the facial pressure sensitive area of user contacts.The some parts of user face pays particular attention to such as nasal bridge region, to obtain the balance of pressure and sealing.Simultaneously, preferably provide the low-smoothness face shield,, and reduce to make face shield assembly 5 relative to the facial power of rotating of user with comfort level by providing stability to improve user 1.Though shown hood pad is used for nose formula face shield assembly, it also can be designed as and is used for full-face face shield (full face mask) or nose/mouth mask assembly.

Hood pad 30 has facial contact side 38 and non-facial contact side 39.The non-facial contact side 39 of hood pad 30 engages mask frame 10 at a 34a and 34b place.In face shield assembly 5, any type of connected system mouth can be used for hood pad 30 is connected to mask frame 10.Some examples are included in U.S.Patent No.6, the ULTRA MIRAGE that is used in ResMed that describes in 412,487 ^Inside hood pad folder (interior cushion clip) in the face shield or outside hood pad folder (exterior cushion clip) comprise its full content hereby by reference.Hood pad 30 can be for good and all or separably and/or can be connected to mask frame 10 with connecting again.Also can adopt the hood pad of other form to connect, such as frictional fit, gummed (gluing) and glossal canal mechanism (tongue and groove mechanism).

Mask frame 10 comprises at least one hole 42, is fit to assembling winding pipe assembly 20.Hole 42 has about 20mm to the diameter between about 40mm at its widest part, more preferably is the extremely diameter between about 30mm of about 25mm, is most preferably the diameter of about 28mm.Hole 42 preferably has general circle.Yet hole 42 can have non-circular shape.And mask frame 10 can have a plurality of holes, makes winding pipe assembly 20 be connected to mask frame 10, thereby it is around these a plurality of holes.

Fig. 2 is the cross-sectional view of face shield assembly 5, an embodiment of an embodiment of the mask frame 10 that links together according to one embodiment of present invention of expression, hood pad 30 and an embodiment of winding pipe assembly 20.Fig. 2 also represents to be connected to the ventilation vent cover 180 of swivel elbow 160.Ventilation vent cover 180 guides off-air along its air hose, thereby avoids interference the room-mate and make minimum.

Hole 42 selectively comprises annulus 400.Fig. 3 a is the axonometric chart of annulus 400.Annulus 400 comprises outer toroid 310 and forms the interior annulus 307 of passage 306 that this passage 306 is by ventilation vent cover 180, such as the direct exhaust via air vent cavity (vent cavity) 308.

Annulus 307 in outer toroid 310 is connected to by at least one linking arm (connecting arm) 304.In the embodiment shown in Fig. 3 a, annulus 400 has three linking arms 304.To those skilled in the art clearly, can adopt the linking arm 304 of different numbers.

In one embodiment, annulus 400 is made of one part with mask frame 10.In this embodiment, the internal diameter in hole 42 and outer toroid 310 consistent (that is, outer toroid 310 is the internal diameter in hole 42).In another embodiment, annulus 400 is made separately, and is fit to engage separably with mask frame 10.

Each linking arm 304 can straightly substantially maybe can comprise depression, breach and/or projection.In the embodiment shown in Fig. 3 a, linking arm 304 comprises a breach 303 and projection 305.The profile of annulus 400 is as shown in Fig. 3 b.

Fig. 3 b is the cross-sectional view in the zone of wound hole 42 in mask frame 10.Hole 42 by flange 301 and antelabium 300 around.Mask frame 10 in the present embodiment also comprises outstanding 302.Flange 301, antelabium 300 and outstanding 302 are fit to engage winding pipe assembly 20.

In the embodiment shown in Fig. 3 b, the outer toroid 310 and the flange 301 of annulus 400 are combined as a whole.This has just caused the through channel (through channel) that is limited by the passage 306 in hole in the mask frame 10 42 and the annulus 400.Outer toroid 310 has about 20mm to the diameter between about 40mm at its widest part, more preferably is the extremely diameter between about 30mm of about 25mm, is most preferably the diameter of about 24mm.Passage 306 has about 4mm to the diameter between about 12mm at its widest part, more preferably is the extremely diameter between about 10mm of about 6mm, is most preferably the diameter of about 8mm.

Fig. 4 a and 4b represent an embodiment of swivel elbow 160 in more detail.Swivel elbow 160 is rotatably connected to mask frame 10, and comprises sleeve 166, and this sleeve 166 is suitable for holding air hose 168, with from pressure fan (not shown) supplied with pressurized breathe air or gas.In illustrated embodiment, sleeve 166 comprises element 165.The top of element 165 is suitable for the bottom of engages vent hole lid 180.

Fig. 4 a is the cross-sectional view of an embodiment of swivel elbow 160.Its expression swivel elbow 160 comprises the collar 173 around the end 169 of bend pipe 160.The end 169 of bend pipe 160 exceeds the collar 173 and extends to improve with in being assembled to mask frame 10 time and aim at.Particularly, end 169 is used for engaging the breach 303 of annulus 400 (if with).The collar 173 and end 169 separate with coaxial relation, so that form the spatial accommodation 183 between the collar 173 and the end 169.When swivel elbow assembly 20 was connected to mask frame 10, the collar 173 was suitable for engaging outstanding 302.The U.S. patent application No.60/402 that submitted on August 12nd, 2002 has described the example that separable swivel elbow connects in 509, comprises its full content hereby by reference.

Particularly has big breathing chamber 35 in order to improve, such as the full-face face shield or have CO in the face shield assembly 5 of hood pad of gusset ₂Removing, developed the deflector 161 that air inlet 162 and air vent 164 are separated.Exhaust cavity 308 is also shown in Fig. 4 a.Exhaust cavity 308 will be removed unshowned ventilation vent cover 180 among gas channeling Fig. 4 a.The degree of depth of deflector 161 is design parameters, has been used for improving CO ₂Remove.Can produce many multi-form bend pipes 160 and mask frame 10 to produce the deflector degree of depth that needs.In one embodiment of the invention, mask frame 10 does not form deflector 161, and the whole deflector degree of depth is formed by bend pipe 160.In another embodiment, annulus 400 increases the degree of depth of deflector 161, and it also can improve the CO in the face shield assembly 5 with big breathing chamber 35 ₂Remove.

Swivel elbow 160 comprises air inlet 162 and air vent 164.As shown in Figs. 4a and 4b, air vent 164 separates with air inlet 162 by the deflector 161 that is positioned at bend pipe 160 inside.Select the orientation of air inlet 162 and air vent 164, make in air inlet 162 gas of representing by direction arrow A that enters less directly influence the gas clean-up represented by direction arrow B air-flow along air vent 164.And the air that enters bend pipe 160 difficulty flows directly into air vent 164, and this is because deflector 161 forces and enters air will pass through zigzag path before withdrawing from by air vent 164, such as turning round about 180 °.

Deflector 161 is normally crooked.Fig. 4 b represents deflector 161 according to an embodiment of the invention.Deflector 161 is generally sinusoidal shape, and is positioned at around the centrage 100 with total symmetric mode.Deflector 161 comprises two junction point 150a and the 150b that is connected to end 169, central part 152 and bottom 155.Centrage 100 intersects with the bottom 155 of deflector 161.As Fig. 4 c in more detail shown in, deflector 161 has inner surface 153 and outer surface 154.

Deflector 161 comprises the projection 163 that at least one extends from outer surface 154.The set-up mode of deflector 161 is that when winding pipe assembly 20 engaged with mask frame 10, the position of the interior annulus 305 of annulus 400 made inner surface 153 near interior annulus 305.

The shape of deflector 161 has a plurality of advantages, and wherein some are: the gas/air that enters that (i) is fed in the air inlet 162 is guided by bottom 155 and/or projection 163, and it provides more uniform airflow to user 1; (ii) bottom 155 is usually located under the user nostril, thereby makes off-air (be rich in CO ₂) discharge air vent 164 effectively; And/or the noise that (iii) produced by user 1 reduces.

Other embodiment of deflector 161 is as shown in Fig. 4 d and 4e.In the embodiment shown in Fig. 4 d, deflector 161 does not comprise projection 163.In the embodiment shown in Fig. 4 e, deflector 161 relative Fig. 4 b and 4d are inverted.In the embodiment as shown in Fig. 4 b, 4d and 4e, centrage 100 is arranged vertically.Yet level or the other centrage arranged with any angle between vertical and level are within the scope of the invention.

Various other deflector shapes are acceptables.For example, deflector 161 can be M, C or V-arrangement.An advantage again of deflector 161 is according to an embodiment of the invention, and the cross-sectional area of exhaust airflow paths will increases near second end of first end air vent 164 of facepiece interior.Like this, slack-off via the speed of the air-out of air vent 164 when flowing out bend pipe 160, or do not increase at least.Help to reduce ventilation noise like this.Bend pipe 160 has or does not have the ventilation cavity also within the scope of the invention.

The embodiments of the invention of ventilation cavity with M shape deflector and increase are shown in Figure 18 a to 19j.The embodiments of the invention that have the V-arrangement deflector and do not have a ventilation cavity are shown in Figure 22 a to 23j.The embodiments of the invention of ventilation cavity with C shape deflector and increase are shown in Figure 24 a to 25j.The embodiments of the invention of ventilation cavity with V-arrangement deflector and increase are shown in Figure 28 a to 29j.Described all deflector shapes have all that noise reduces, CO ₂Remove the function of increase and/or optimization and/or low-flow impedance.Other deflector 161 shapes and orientation are acceptables, and within the scope of the invention.

As previously mentioned, deflector 161 limits and makes air inlet 162 that the air from pressure fan can enter and the air vent 164 in the bend pipe 160.Air from pressure fan passes through air hose 168 to bend pipe 160, and it passes through the also cavity 35 of " injection " face shield 10 of air inlet 161 herein.Via the air vent 164 of annulus 400 to bend pipe 160, air flows out to atmosphere from mask cavity 35 continuously.

Though the embodiment described in Figure 14 a to 15j does not comprise nostril deflector 161, it comprises other advantage of the present invention, comprises its low-smoothness (low profile).Embodiments of the invention---" deeply " deflector 161 used in the face shield assembly 5 with big breathing chamber 35 is shown in Figure 16 a and 16b.

Figure 30 a-30d represents the swivel elbow according to the optional embodiment of the present invention of similar embodiment shown in Figure 26 a, 26b, 27a-27j.In the present embodiment, two " C " shape deflectors 161 (Figure 30 c) are arranged.Air enters bend pipe via sleeve 166 from pressure fan, and is directed rotating about 90 degree, enters mask cavity (Figure 30 b and 30d) via the air entry 162 that is positioned at the bend pipe center.From the air of mask cavity by being positioned at air vent 164 on the bend pipe side and coming out and entering ventilation cavity 308 (Figure 30 a and 30d).

For enough exhaust airstreams are provided, require air vent to have the low-flow impedance.A kind of approach that realizes this purpose is to make air vent 164 have big as far as possible cross-sectional area.Yet in given bend pipe design, the cross-sectional area that increases air vent 164 will be sacrificed air inlet 162.Also require in air inlet 162, to have alap flow impedance.Therefore, in design bend pipe 160, must consider two design objects of obviously conflicting.

In one embodiment, the deflector 161 of bend pipe 160 stretches in the mask frame 10 also one-body molded.In another embodiment, deflector 161 is separated between swivel elbow 160 and mask frame 10, and the joint of the two provides the deflector 161 with sufficient length.In one embodiment of back, the shallow mask frame 10 of the whole deflector 161 that swivel elbow 160 is suitable for not rectificating.

In another form, deflector 161 is partly by bend pipe 160 and partly formed by framework 10.This configuration can produce multi-form or the deflector shape.When deflector 161 passes through the combination formation of bend pipe 160 and framework 10, can produce the modularity bend pipe design that can be used for various different mask systems.For the combination by framework 10 and bend pipe 160 forms deflector 161, circular annulus 400 is added to framework.

Annulus 400 extends to the degree of depth of deflector 161 in the cavity 35 of mask frame 10.Like this, walk around the probability of mask cavity 35 with regard to having reduced the fresh air that enters.The edge of the contiguous user nose in the end of annulus, therefore, this disposes and helps and will guide air vent 164 into from the air of nose.The utilization that is molded into the annulus 400 in the framework 10 has been eliminated deflector 161 with swivel elbow 160 and has been extended to necessity in the mask frame 10.Although long water conservancy diversion bend pipe is suitable for having the face shield assembly of big cavity, it is not suitable for having the face shield assembly of shallow cavity, and this is because it may disturb patient's nose.Therefore, have the mask frame 10 and the combination with bend pipe 160 of short deflector of annulus 400 by utilization, identical bend pipe 160 can be used for the face shield assembly of shallow and big cavity simultaneously.

In a kind of form of the present invention, deflector 161 forms in the cylindrical portions may of the bend pipe 160 that is fit to be connected to framework.In the embodiments of the invention as shown in Figure 20 a and 21a to 21j, deflector 161 limits the air vent 164 that is in the center.Air from pressure fan passes through around the outside of air vent 164.

The structure of the bend pipe 160 of the angle between dividing in conjunction with the common cylindrical part of two of bend pipe 160 forms potential dead point (potential dead spot) in the pressure fan air flow path.The chance in exhaust stream path is represented at potential dead point in the pressure fan air flow path.Therefore, in a kind of form of the present invention, such as, referring to Fig. 4 a-4c, the exhaust stream path is positioned at the place that may become pressure fan air-flow dead point in addition in bend pipe 160.Therefore, the cross-sectional area in exhaust stream path can increase and the pressure fan air flow path do not caused significant impact and/or issuable unexpected noise in the reset procedure is had a negative impact.Like this, just can the cross-sectional area in exhaust stream path be increased to 60% from 40% of total cross-sectional area (equaling exhaust flow path footpath area and pressure fan air flow path area) in the porch of mask cavity 35.

Another advantage according to deflector 161 of the present invention is that it does not produce great flow impedance to the pressure fan air-flow.Although the design of various deflector all is possible, those designs that hinder air flow paths produce resistance to the air-flow from pressure fan, cause big pressure drop along bend pipe 160 than other situation.In order to provide air at given direct draught, the pressure drop in the bend pipe is big more, the just necessary more increasing running of pressure fan.The necessary more increasing running of pressure fan, the noise that produces by pressure fan is just big more, and the patient is had difficulty in going to sleep more.

In a kind of form of the present invention, bend pipe 160 comprises two cylindrical shape parts, and first is used to connect air hose 168 and has first; Second portion is used to connect mask frame 10 and has second, and wherein two axles are arranged with about 100 degree interior angles.This and two axles shine in pairs with the prior art elbow-shaped of about 90 degree interior angles layouts.

Further advantage according to swivel elbow 160 of the present invention is, it has low height (vertical dimension of stretching out from framework).Reduce the visual impact of swivel elbow 160 like this, reduced swivel elbow 160 moments of flexure, and reduced swivel elbow 160 " lever arm (lever arm) " effect.

Fig. 5 a to 5d represents the various views of breathing mask framework 10 according to an embodiment of the invention.Fig. 6 a to 6m represents several views of breathing mask framework 10.Fig. 7 a to 7i represents several views of swivel elbow 160.Fig. 5 a to 7i is represented to be of a size of and can to change the preferred illustrative embodiment that preferred ± 10% changes up to ± 20% among the embodiment.

Other advantage of swivel elbow and mask frame 10 comprises according to the preferred embodiment of the present invention provides: (i) sufficient inlet area and best shape, so that do not hinder the air-flow of entering surface shade assembly 5; (ii) have flattened section in addition and be not limited to terminal conical outlet so that quiet airy sufficient exit flow area to be provided.The advantage of back was difficult to reach before the present invention.

Though the present invention is described nose formula face shield, the present invention is applicable to muzzle face shield or mouthful formula face shield.In addition, though the present invention is described swivel elbow 160, the present invention is applicable to fixed bending tube.In addition, though a kind of form of the present invention, also can adopt other form of the present invention with the hood pad 30 that does not comprise gusset 32 applicable to the hood pad 30 that comprises gusset 32.

Thereby can think that embodiments of the present invention fully and are effectively described.Providing above-mentioned specific embodiment with explanation 26S Proteasome Structure and Function principle of the present invention, is not limitation of the present invention.On the contrary, the present invention will comprise interior all modifications, the variation and alternative of spirit and scope of detailed description.

Claims

1, comprise the breathing mask winding pipe assembly of bend pipe, wherein bend pipe comprises:

A) comprise the suitable first end that engages the surface on air supply pipe surface; And

B) offer the second end of face shield,

Wherein this bend pipe also forms:

I) will enter gas and supply with the air inlet of the respiratory nasal cavity that limits by face shield along first direction, and

The ii) air vent that separates by at least one deflector and air inlet,

Wherein, deflector has at least one arch section of observing along the second end, and this deflector is configured to and will discharges gas along the second direction diversion respiratory nasal cavity opposite substantially with first direction.

2, winding pipe assembly as claimed in claim 1 is characterized in that, wherein this at least one deflector comprises cross one another first and second deflectors.

As claim 1 or 2 each described winding pipe assemblies, it is characterized in that 3, wherein deflector is pressed via the centrage orientation of bend pipe top to the bend pipe bottom, so that the bottom of the bottom alignment bend pipe of deflector in bend pipe.

4, as each described winding pipe assembly of claim 1-3, it is characterized in that wherein air vent is centered on by air inlet fully.

As each described winding pipe assembly of claim 1-4, it is characterized in that 5, deflector wherein is circular substantially.

As each described winding pipe assembly of claim 1-5, it is characterized in that 6, wherein deflector is pressed via the centrage orientation of bend pipe right side to the bend pipe left side in bend pipe.

7, as each described winding pipe assembly of claim 1-6, it is characterized in that wherein deflector further comprises the projection that is used for putting in the face shield breathing chamber.

8, as each described winding pipe assembly of claim 1-7, it is characterized in that wherein the second end of bend pipe further comprises:

Iii) elastic collar, this elastic collar is substantially around mating part, forming the spatial accommodation between the collar and the mating part, thereby and wherein the collar be configured to that flange on being formed on face shield is outwardly-bent when entering spatial accommodation to be arrived the collar until the second end and inwardly shrink with the relative collar locking of flange and bend pipe is connected to separably the operating position of face shield by its elasticity.

9, bend pipe as claimed in claim 8 is characterized in that, wherein mating part extends beyond the collar, aims at face shield to help the bend pipe the second end.

10, as claim 8 or 9 each described winding pipe assemblies, it is characterized in that wherein bend pipe further is included in each lateral release portion of the collar, this release portion is flexible relatively mutually, so that the collar is outwards moved, thereby make flange shift out spatial accommodation and bend pipe is separated with face shield.

11, as each described winding pipe assembly of claim 1-10, it is characterized in that, further comprise:

C) be connected to the movable ventilation vent cover of bend pipe separably, wherein this ventilation vent cover comprises main body and at least one gas clean-up air vent.

12, winding pipe assembly as claimed in claim 11 is characterized in that, wherein ventilation vent cover is made by elastomeric material.

As each described winding pipe assembly of claim 1-12, it is characterized in that 13, at least one deflector wherein is M shape, V-arrangement or C shape.

14, as each described winding pipe assembly of claim 1-12, it is characterized in that wherein exhaust port area increases along second direction.

15, respiratory mask assembly comprises:

A) further comprise the mask frame at least one hole;

B) hood pad, and

C) as each described winding pipe assembly of claim 1-14.

16, face shield assembly as claimed in claim 15 is characterized in that, hole wherein has the diameter of about 20mm between about 40mm, preferably at about 25mm extremely between about 30mm, and more preferably about 28mm.

17 as each described face shield assembly of claim 15-16, it is characterized in that hole wherein has usually round-shaped.

18, as each described face shield assembly of claim 16-17, it is characterized in that hole wherein further comprises annulus.

19, face shield assembly as claimed in claim 18 is characterized in that, wherein annulus further comprises interior annulus.

20, face shield assembly as claimed in claim 19 is characterized in that, wherein interior annulus is connected to the internal diameter in hole by at least one adapter.

21, face shield assembly as claimed in claim 20 is characterized in that, at least one adapter wherein comprises that at least one is used to engage the breach of bend pipe.

22, face shield assembly as claimed in claim 19 is characterized in that, wherein annulus further comprises the outer toroid around interior annulus.

23, face shield assembly as claimed in claim 22 is characterized in that, wherein outer toroid has the diameter of about 20mm between about 40mm, preferably at about 25mm extremely between about 30mm, and more preferably about 24mm.

24, face shield assembly as claimed in claim 19 is characterized in that, wherein interior annulus limits cavity.

25, face shield assembly as claimed in claim 24 is characterized in that, its cavity has about 4mm to the diameter between about 12mm.

26, face shield assembly as claimed in claim 25 is characterized in that, its cavity has about 6mm to the diameter between about 10mm, is preferably about 8mm.

As each described face shield assembly of claim 15-26, it is characterized in that 27, wherein hood pad is fit to insert mask frame with the cavity of stop collar around the user nose.