201116309 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種呼吸面罩，特別是指一種具有濕熱 氣體交換功能的呼吸面罩。 【先前技術】 連續正壓氣體（CPAP)呼吸機是目前最常用以治療阻塞 性睡眠呼吸暫止症的方式，由於該呼吸機的呼吸面罩是長時 間地罩覆於患者的臉部，因此，患者呼出的濕熱氣體易在呼 吸面罩内產生霧氣並凝結於呼吸面罩上。 另外’呼吸機由於長時間地提供患者正壓氣體，會使患 者的呼吸道產生乾燥而有不適感，因此，部份患者需要有加 裝潮濕加熱器的連續正壓氣體呼吸機，以提供適於患者需求 之濕熱氣體。除了加裝潮濕加熱器的使用方式外，另一種使 用方式是如圖1及圖2所示地在呼吸面罩u上加褒一人工 鼻12，人工鼻12也可稱為熱與濕氣交換混化器HME(Heat and Moisture Exchanger) ’其包含一連接於呼吸面罩u與呼 吸機的氣官13之間的輸氣管121，輸氣管121界定一容置 空間122,容置空間122用以供一介質123容置，介質123 為紙或發泡PU材質，藉此，可將患者呼出之濕熱氣體的熱 與濕氣吸收儲存，以備患者吸氣肖，呼吸機所提供之氣體通 過人工鼻12的介質123後會增加溼度及熱度供患者吸取。 然而，前述兩種方式並無法有效解決患者呼出的濕熱氣 體在呼吸面罩U内產生霧氣並凝結於呼吸面罩u上且潮 …加.、、、器或人工鼻12的使用會使得整個呼吸系統結構較為 201116309 複雜。再者，由於人工鼻12是設置在呼吸面罩u外部使 得介質123較遠離患者的口部而無法直接且快速地吸收儲 存患者呼出之濕熱氣體的熱與濕氣。 【發明内容】 本發明之主要目的，在於提供一種能快速地吸收儲存患 者呼出之濕熱氣體的熱與濕氣的呼吸面罩。 本發明之另一目的，在於提供一種呼吸面罩，能減少患 者呼出的濕熱氣體在罩體内產生霧氣並凝結於罩體上。 本發明的目的及解決先前技術問題是採用以下技術手 段來實現的，依據本發明所揭露的呼吸面罩，包含一罩體、 一輸氣管，及一介質。 罩體包括一通氣孔，及一位於通氣孔後侧的圍繞壁，圍 繞壁界定一與通氣孔連通的穿孔，輸氣管設於罩體前側並與 通氣孔連通，介質安裝於穿孔内，且介質是由易吸熱及濕氣 之材質所製成。 本發明的目的及解決先前·技術問題還可以採用以下技 術手段進一步實現。 介質與圍繞壁之間呈干涉配合，使得介質不易脫離圍繞 嗤〇 呼吸面罩還包含一穿設於穿孔内的套管’套管用以供介 質容置且前後兩端分別呈開放狀，藉此，所以患者呼出之濕 熱氣體能通過介質而經由輸氣管排出。套管與圍繞壁之間呈 干涉配合’使得套管不易脫離圍繞壁。 進一步地’套管包括一設於後端用以擋止介質的擋止 201116309 件’藉此，介質不會脫離套管。 介質為紙材或發泡材料，較佳地，發泡材料為聚氨基甲 酸醋。 在另一種實施態樣中，罩體還包括一具有通氣孔與圍繞 壁的框架，及一罩殼，罩殼具有一供框架的圍繞壁穿設的接 合孔’樞架具有一與輸氣管相接合的接合部。 藉由上述技術手段，本發明呼吸面罩的優點及功效在 於，透過介質設置在罩體内侧且緊鄰於患者的口鼻部位，所 以介質能快速且立即地吸收儲存患者呼出之濕熱氣體的熱 與濕氣，以提昇良好的熱與濕氣之儲存效率。再者，患者呼 出之濕熱氣體大部份都是通過介質後由輸氣管排出，能減少 患者呼出之溼熱氣體在罩體内產生霧氣並凝結於罩體上。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在以 下配合參考圖式之二個較佳實施例的詳細說明中，將可清楚 的呈現。透過具體實施方式的說明，當可對本發明為達成預 定目的所採取的技術手段及功效得以更加深入且具體的了 解，然而所附圖式只是提供參考與說明之用，並非用來對本 發明加以限制。 在本發明被詳細描述之前，要注意的是，在以下的說明 内容中，類似的元件是以相同的編號來表示。 如圖3及圖4所示，是本發明呼吸面罩之第一較佳實施 例，該呼吸面罩200可適用於連續正壓氣體呼吸機（圖未示） 上’呼吸面罩200包含一用以罩覆於患者臉部的罩體2，及 201116309 一連接於罩體2與連續正壓氣體呼吸機之間的輸氣管3,連 續正壓氣體呼吸機所提供的氣體能透過輸氣管3及罩體2 的輸送而供患者吸取。 如圖4、圖5及圖ό所示，罩體2包括一用以供氣體流 通的通氣孔21，輸氣管3外表面的一卡槽31用以供罩體2 界定出通氣孔21的一内周壁22卡接，藉此，使得輸氣管3 能穩固地卡固在罩體2上。如圖4、圖5及圖7所示，罩體 2還包括一由内表面朝後凸伸且位於通氣孔21後側的圍繞 壁23，圍繞壁23界定一直徑大於通氣孔21直徑的穿孔 231，穿孔231與通氣孔21連通並用以供一套管4穿設。套 管4的前後兩端分別呈開放狀，並包括一用以供一介質$ 容置的容置空間41、一位於前端的前開口 42，及一於後端 的後開口 43’套管4後端的後開口 43處設有一呈長形桿狀 的擋止件44，藉此，介質5可經由前開口 42置入容置空間 41内’且介質5透過擋止件44的擋止而不會由後開口 43 處脫離套管4。介質5是由易吸熱及濕氣之材質所製成，在 本實％例中’介質5為發泡材料’較佳地，發泡材料為聚氨 基甲酸醋（PU)，當然，介質5也可為紙材。 如圖7及圖8所示，欲組裝介質5及套管4於罩體2 上時，首先，將介質5經由套管4的前開口 42置入容置空 間41内，透過擋止件44的稽止使得介質5能定位在容置空 ]41内。接著，將套管4由圍繞壁23後端置入穿孔231 内，使介質5對應於輸氣管3的位置後，即完成介質5及套 管4的組裝。較佳地，套管4與圍繞壁幻之間是呈干涉配 201116309 合的狀態，使得套管4組裝在圍繞壁23的穿孔231後不易 脫離圍繞壁23。 當患者使用呼吸面罩200時，由於患者的口鼻部位緊鄰 於介質5的後端處且套管4的前後兩端分別呈開放狀，所以 患者呼出之濕熱氣體能通過介質5而經由輸氣管3排出，濕 熱氣體通過介質5時’介質5能快速且立即地吸收儲存濕熱 氣體的熱與濕氣，以提昇良好的熱與濕氣之儲存效率。再 者’由於介質5緊鄰於患者的口鼻部位，所以患者呼出之濕 熱氣體大部份都是通過介質5後由輸氣管3排出，能減少患 者呼出之溼熱氣體在罩體2内產生霧氣並凝結於罩體2上。 另外，當患者吸氣時，呼吸機所提供之氣體通過輸氣管 3及介質5後’由於介質5吸收儲存有熱與濕氣，所以會使 通過介質5之氣體增加溼度及熱度，以供患者吸取，藉此， 在不使用潮濕加熱器的狀態下，能提供適於患者吸取之濕熱 氣體，以減少患者的呼吸道產生乾燥而有不適感的情形。 又’在不使用潮濕加熱器及人工鼻的狀態下，能使得整個呼 吸糸統結構較為間早’並能減少使用的空間。 值得一提的是，在實際應用上’介質5,也可如圖9所 示地直接置於圍繞壁23的穿孔231内，並省略套管4的設 計，較佳地，介質5’的外徑設計成略大於穿孔231的孔徑， 使得介質5’能與圍繞壁23呈干涉配合的狀態，因此，介質 5 ’不易脫離圍繞壁23的穿孔231。 如圖10及圖11所示，是本發明呼吸面罩之第二較佳實 施例，該呼吸面罩210的使用方式大致與第一較佳實施例相 201116309 同，不同之處在於罩體2,及輸氣管3,的結構設計有所不同。 如圖11及圖12所示’罩體2’包括一罩殼24，及—設 於罩殼24前侧用以供頭帶（圖未示）連接的框架25,框架25 的架體251中間處設有一通氣孔25〇，架體25丨外側面朝前 凸設有一呈圍繞狀的接合部252,接合部252用以與輸氣管 3’相接合。輸氣管3’的管體32用以穿設於接合部252内， 透過一呈倒U形狀的鎖定件33的兩卡接臂331内側分別穿 過接合部252的兩側開孔253,且兩卡接臂331内側卡接於 管體32外表面的一卡環321前端，藉此，使得輸氣管3，的 管體32能穩固地卡固在框架25的接合部252上。 如圖11、圖13及圖14所示，框架25的架體251内側 面朝後凸設有一位於通氣孔250後側的圍繞壁254,罩殼24 具有一用以供框架25的圍繞壁254穿設的接合孔241，藉 此’使得罩殼24能套設在框架25上以罩覆於患者的臉部。 較佳地，罩殼24與圍繞壁254之間是呈干涉配合的狀態， 使得罩殼24能穩固地套設在框架25上。套管4可由圍繞壁 254後端置入圍繞壁254的穿孔255内，使介質5對應於輸 氣管3’的管體32位置’此時，介質5及套管4即組裝在框 架25上。較佳地’套管4與圍繞壁254之間是呈干涉配合 的狀態》 另外，在實際應用上，介質5’也可如圖15所示地直接 置於圍繞壁254的穿孔255内，並省略套管4的設計，較佳 地’介質5’的外徑設計成略大於穿孔255的孔徑，使得介 質5 ’能與圍繞壁254呈干涉配合的狀態。 201116309 歸納上述，兩實施例的呼吸面罩2〇〇、2〗〇,透過介質5、 5’設置在罩體2、2,内側且緊鄰於患者的口鼻部位，所以介 質5、5’能快速且立即地吸收儲存患者呼出之濕熱氣體的熱 與濕氣，以提昇良好的熱與濕氣之儲存效率。再者，患者呼 出之濕熱氣體大部份都是通過介質5、5，後由輸氣管3、3, 排出，能減少患者呼出之溼熱氣體在罩體2、2，内產生霧氣 並凝結於罩體2、2’上，故確實能達到本發明所訴求之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不能201116309 VI. Description of the Invention: [Technical Field] The present invention relates to a breathing mask, and more particularly to a breathing mask having a moist heat exchange function. [Prior Art] A continuous positive pressure gas (CPAP) ventilator is currently the most commonly used method for treating obstructive sleep apnea, since the breathing mask of the ventilator covers the patient's face for a long time, The hot and humid gas exhaled by the patient easily creates a mist in the breathing mask and condenses on the breathing mask. In addition, because the ventilator provides positive pressure gas for the patient for a long time, the patient's respiratory tract will be dry and uncomfortable. Therefore, some patients need a continuous positive pressure gas ventilator with a humidifier to provide suitable The hot and humid gases required by the patient. In addition to the use of a humidified heater, another method of use is to add an artificial nose 12 to the respiratory mask u as shown in Figures 1 and 2, and the artificial nose 12 can also be referred to as heat and moisture exchange. The HME (Heat and Moisture Exchanger) 'includes a gas supply pipe 121 connected between the respiratory mask u and the gas 13 of the ventilator. The gas pipe 121 defines an accommodating space 122 for accommodating a space 122. The medium 123 is accommodated, and the medium 123 is made of paper or foamed PU material, whereby the heat and moisture of the hot and humid gas exhaled by the patient can be absorbed and stored for the patient to inhale the gas, and the gas supplied by the ventilator passes through the artificial nose. The medium 123 will increase the humidity and heat for the patient to absorb. However, the foregoing two methods are not effective in solving the problem that the patient's exhaled hot and humid gas generates mist in the respiratory mask U and condenses on the respiratory mask u, and the use of the humidifier, the device, or the artificial nose 12 causes the entire respiratory structure to be More complicated than 201116309. Furthermore, since the artificial nose 12 is disposed outside the respiratory mask u such that the medium 123 is farther away from the mouth of the patient, it is not possible to directly and quickly absorb the heat and moisture stored in the moist hot gas exhaled by the patient. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a respiratory mask that can quickly absorb heat and moisture that stores moist hot gases exhaled by a patient. Another object of the present invention is to provide a respiratory mask which can reduce the generation of mist in the cover body by the moist hot gas exhaled by the patient and condense on the cover. The object of the present invention and the prior art problem are solved by the following technical means. The respiratory mask according to the present invention comprises a cover, a gas pipe, and a medium. The cover body includes a vent hole, and a surrounding wall on the rear side of the vent hole. The surrounding wall defines a through hole communicating with the vent hole. The gas pipe is disposed on the front side of the cover body and communicates with the vent hole, and the medium is installed in the through hole, and the medium is Made of materials that are easy to absorb heat and moisture. The object of the present invention and the solution to the prior art problems can be further achieved by the following technical means. An interference fit between the medium and the surrounding wall, so that the medium is not easily detached from the surrounding breathing mask, and the sleeve includes a sleeve that is disposed in the through hole for the medium to be accommodated and the front and rear ends are respectively open, thereby Therefore, the hot and humid gas exhaled by the patient can be discharged through the gas pipe through the medium. The interference fit between the sleeve and the surrounding wall is such that the sleeve is not easily detached from the surrounding wall. Further, the sleeve includes a stop disposed at the rear end for stopping the medium. Thus, the medium does not disengage from the sleeve. The medium is a paper or a foamed material, and preferably, the foamed material is polyurethane. In another embodiment, the cover further includes a frame having a vent hole and a surrounding wall, and a cover having an engaging hole for the surrounding wall of the frame. The pivot has a gas pipe. Engaged joints. According to the above technical means, the advantages and effects of the respiratory mask of the present invention are that the medium is disposed inside the cover body and adjacent to the mouth and nose of the patient, so that the medium can quickly and immediately absorb the heat and humidity of storing the hot and humid gas exhaled by the patient. Gas to improve the storage efficiency of good heat and moisture. Furthermore, most of the hot and humid gas exhaled by the patient is discharged through the trachea through the medium, which can reduce the hot and humid gas exhaled by the patient and generate mist in the cover body and condense on the cover. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings. The technical means and functions of the present invention for achieving the intended purpose can be more deeply and specifically understood by the description of the specific embodiments. However, the drawings are only for the purpose of reference and description, and are not intended to limit the invention. . Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. As shown in FIG. 3 and FIG. 4, it is a first preferred embodiment of the respiratory mask of the present invention. The respiratory mask 200 can be applied to a continuous positive pressure gas ventilator (not shown). The breathing mask 200 includes a cover for use. a cover 2 covering the face of the patient, and 201116309 a gas pipe 3 connected between the cover 2 and the continuous positive pressure gas ventilator, the gas supplied by the continuous positive pressure gas ventilator can pass through the gas pipe 3 and the cover The delivery of 2 is for the patient to take. As shown in FIG. 4, FIG. 5 and FIG. 5, the cover body 2 includes a vent hole 21 for gas circulation, and a card slot 31 on the outer surface of the gas pipe 3 is used for the cover body 2 to define a vent hole 21. The inner peripheral wall 22 is engaged, whereby the gas pipe 3 can be firmly fixed to the cover 2. As shown in FIG. 4, FIG. 5 and FIG. 7, the cover body 2 further includes a surrounding wall 23 projecting rearward from the inner surface and located at the rear side of the vent hole 21. The surrounding wall 23 defines a perforation having a diameter larger than the diameter of the vent hole 21. 231, the through hole 231 is in communication with the vent hole 21 and is used for a sleeve 4 to pass through. The front and rear ends of the sleeve 4 are respectively open and include a receiving space 41 for receiving a medium, a front opening 42 at the front end, and a rear opening 43' behind the sleeve 4 at the rear end. At the rear opening 43 of the end, a stopper 44 having an elongated rod shape is provided, whereby the medium 5 can be inserted into the accommodating space 41 via the front opening 42 and the medium 5 is blocked by the stopper 44 without The sleeve 4 is detached from the rear opening 43. The medium 5 is made of a material that is easy to absorb heat and moisture. In the present example, 'the medium 5 is a foamed material'. Preferably, the foaming material is polyurethane (PU), and of course, the medium 5 is also Can be paper. As shown in FIG. 7 and FIG. 8 , when the medium 5 and the sleeve 4 are to be assembled on the cover 2, first, the medium 5 is placed in the accommodating space 41 via the front opening 42 of the sleeve 4, and the stopper 44 is transmitted through the stopper 44. The check enables the medium 5 to be positioned within the accommodation space 41. Next, the sleeve 4 is placed in the perforation 231 from the rear end of the surrounding wall 23, so that the medium 5 corresponds to the position of the gas pipe 3, that is, the assembly of the medium 5 and the sleeve 4 is completed. Preferably, the sleeve 4 and the surrounding wall are in a state of interference assembly 201116309 such that the sleeve 4 is not easily detached from the surrounding wall 23 after being assembled around the perforations 231 of the wall 23. When the patient uses the respiratory mask 200, since the patient's mouth and nose are immediately adjacent to the rear end of the medium 5 and the front and rear ends of the sleeve 4 are respectively open, the exhaled hot and humid gas of the patient can pass through the medium 5 through the gas duct 3 When the hot humid gas passes through the medium 5, the medium 5 can quickly and immediately absorb the heat and moisture stored in the hot and humid gas to improve the storage efficiency of heat and moisture. Furthermore, since the medium 5 is immediately adjacent to the mouth and nose of the patient, most of the hot and humid gas exhaled by the patient is discharged through the medium 3 and then discharged from the gas pipe 3, which can reduce the amount of hot and humid gas exhaled by the patient and generate mist in the cover 2 and Condensed on the cover 2. In addition, when the patient inhales, the gas supplied by the ventilator passes through the gas pipe 3 and the medium 5, 'Because the medium 5 absorbs and stores heat and moisture, the gas passing through the medium 5 is increased in humidity and heat for the patient. By sucking, it is possible to provide a hot and humid gas suitable for the patient to absorb, without using a moist heater, to reduce the dryness and discomfort of the patient's respiratory tract. Moreover, in the state where the wet heater and the artificial nose are not used, the entire respiratory system can be made relatively early and the space for use can be reduced. It is worth mentioning that, in practical application, the medium 5 can also be placed directly in the perforation 231 surrounding the wall 23 as shown in FIG. 9 and the design of the sleeve 4 is omitted, preferably outside the medium 5'. The diameter is designed to be slightly larger than the aperture of the perforation 231 such that the medium 5' can be in an interference fit with the surrounding wall 23, and therefore, the medium 5' is not easily detached from the perforations 231 surrounding the wall 23. As shown in FIG. 10 and FIG. 11 , it is a second preferred embodiment of the respiratory mask of the present invention. The breathing mask 210 is generally used in the same manner as the first preferred embodiment 201116309, except that the cover 2 is The structural design of the gas pipe 3 is different. As shown in Figs. 11 and 12, the cover 2 includes a casing 24, and a frame 25 provided on the front side of the casing 24 for connecting the headband (not shown), and the frame 251 of the frame 25 is intermediate. A venting opening 25 is formed in the outer side of the frame body 25, and a surrounding engaging portion 252 is protruded forwardly. The engaging portion 252 is for engaging with the gas pipe 3'. The tube body 32 of the gas pipe 3' is disposed in the joint portion 252, and passes through the two side openings 253 of the joint portion 252 through the inner side of the two snap arms 331 of the inverted U-shaped locking member 33, and two The inside of the catching arm 331 is engaged with the front end of a snap ring 321 on the outer surface of the tubular body 32, whereby the tubular body 32 of the gas delivery pipe 3 can be firmly fixed to the joint portion 252 of the frame 25. As shown in FIG. 11, FIG. 13, and FIG. 14, the inner side of the frame body 251 of the frame 25 is convexly provided with a surrounding wall 254 on the rear side of the vent hole 250. The cover 24 has a surrounding wall 254 for the frame 25. The engagement hole 241 is formed so that the cover 24 can be sleeved on the frame 25 to cover the face of the patient. Preferably, the housing 24 is in an interference fit with the surrounding wall 254 such that the housing 24 can be securely sleeved over the frame 25. The sleeve 4 can be placed in the perforations 255 surrounding the wall 254 from the rear end of the surrounding wall 254 such that the medium 5 corresponds to the position of the tubular body 32 of the gas pipe 3'. At this time, the medium 5 and the sleeve 4 are assembled on the frame 25. Preferably, 'the state of the interference between the sleeve 4 and the surrounding wall 254 is an interference fit.>> In addition, in practical applications, the medium 5' may also be placed directly in the perforation 255 surrounding the wall 254 as shown in FIG. The design of the sleeve 4 is omitted, preferably the outer diameter of the 'medium 5' is designed to be slightly larger than the aperture of the perforations 255 such that the medium 5' can be in an interference fit with the surrounding wall 254. 201116309 In summary, the respiratory masks of the two embodiments are 2, 2, and the medium 5, 5' is disposed on the inner side of the cover body 2, 2, and is adjacent to the mouth and nose of the patient, so the medium 5, 5' can be quickly The heat and moisture stored in the hot and humid gas exhaled by the patient are immediately absorbed to improve the storage efficiency of heat and moisture. Furthermore, most of the hot and humid gas exhaled by the patient passes through the medium 5, 5, and is then discharged by the gas delivery tubes 3, 3, which can reduce the hot and humid gas exhaled by the patient, generate fog in the shells 2, 2, and condense in the cover. On the body 2, 2', it can indeed achieve the purpose of the present invention. However, the above description is only a preferred embodiment of the present invention, and when
以此限定本發明實施之範圍，即大凡依本發明申請專利範圍 及發明說㈣容所作之簡單料效變化與修飾，皆仍屬本發 明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知人工鼻組裝於呼吸面罩上的立體圖； 圖2是習知人工鼻的立體分解圖； 圖3是本發明呼吸面罩之第—較佳實施例的立體圖； 圖4是本發明呼吸面罩之第一較佳實施例的立體分解 圖； 圖5是本發明呼吸面罩之第一較佳實施例的罩 視圖； ^ -圖6是本發明呼吸面罩之第一較佳實施例的局部 不意圖’㈣罩體的内周壁卡於輸氣管的卡槽； ，7是本發明呼吸面罩之第—較佳實施例的後視圖說 明套管穿設於罩體的圍繞壁内； ° 圖8是本發明呼吸面罩之第-較佳實施例的局部剖視 201116309 八〜、圖說明介質容置於套管的容置空間内且套管穿設於 罩體的圍繞壁内； 圖9疋本發明呼吸面罩之第一較佳實施例的另一實施 I樣的局部剖視示意圖，說明介質容置圍繞壁的穿孔内； 圖10疋本發明呼吸面罩之第二較佳實施例的立體圖； 圖11是本發明呼吸面罩之第二較佳實施例的立體分解 圖； 圖12疋本發明呼吸面罩之第二較佳實施例的局部剖視 丁意圖說明鎖定件的卡接臂内側穿過接合部的側開孔並卡 接於管體的卡環前端； · 圖13是本發明呼吸面罩之第二較佳實施例的後視圖， 說明套管穿設於框架的圍繞壁内； 圖14是本發明呼吸面罩之第二較佳實施例的局部剖視 示意圖，說明介質容置於套管的容置空間内，且套管穿設於 框架的圍繞壁内；及 、 圖15是本發明呼吸面罩之第二較佳實施例的另一實施 態樣的局部剖視示意圖，說明介質容置圍繞壁的穿孔内。 10 201116309 【主要元件符號說明】 200 、210·呼吸面罩 3、3, :…輸氣管 2、 2’ ····罩體 31 ·.··· …·卡槽 21、 250…通氣孔 32 …·管體 22·· ........内周壁 321… •…卡環 23、 254.··圍繞壁 33…… •…鎖定件 231 、255·穿孔 331 ··· •…卡接臂 η Λ . * .......s ia A ...... ____太其 卓叔 Η ...... •…當官 241 .......接合孔 41 ·..·· •…容置空間 25·· .......框架 42··..· …·前開口 251 .......架體 43 •…後開口 252 .......接合部 44 •…擋止件 253 .......侧開孔 5 ' 5, …·介質The scope of the present invention is defined by the scope of the present invention, that is, the scope and the modifications of the invention are all within the scope of the patents of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional artificial nose assembled on a respiratory mask; FIG. 2 is an exploded perspective view of a conventional artificial nose; FIG. 3 is a perspective view of a preferred embodiment of the respiratory mask of the present invention; Figure 4 is a perspective exploded view of a first preferred embodiment of the respiratory mask of the present invention; Figure 5 is a front view of the first preferred embodiment of the respiratory mask of the present invention; ^ - Figure 6 is a first comparison of the respiratory mask of the present invention The portion of the preferred embodiment is not intended to be '(4) the inner peripheral wall of the cover is stuck to the slot of the gas pipe; 7 is the rear view of the preferred embodiment of the respiratory mask of the present invention, illustrating that the sleeve is passed through the surrounding wall of the cover Figure 8 is a partial cross-sectional view of the first preferred embodiment of the respiratory mask of the present invention. 201116309 VIII. The medium is placed in the accommodating space of the sleeve and the sleeve is inserted into the surrounding wall of the hood. Figure 9 is a partial cross-sectional view showing another embodiment of the first preferred embodiment of the respiratory mask of the present invention, illustrating the medium being received within the perforations surrounding the wall; Figure 10 is a second preferred embodiment of the respiratory mask of the present invention. Stereogram of an example; Figure 11 is a breathing mask of the present invention 2 is an exploded perspective view of a second preferred embodiment of the present invention; FIG. 12 is a partial cross-sectional view of the second preferred embodiment of the respiratory mask of the present invention, illustrating the inside of the engaging arm of the locking member passing through the side opening of the engaging portion and engaging Figure 13 is a rear elevational view of the second preferred embodiment of the respiratory mask of the present invention, illustrating the sleeve being threaded into the surrounding wall of the frame; Figure 14 is a second embodiment of the respiratory mask of the present invention A partial cross-sectional view of the preferred embodiment, illustrating that the medium is received in the accommodating space of the sleeve, and the sleeve is disposed in the surrounding wall of the frame; and FIG. 15 is a second preferred embodiment of the respiratory mask of the present invention. A partial cross-sectional view of another embodiment of the example illustrating the media being received within the perforations surrounding the wall. 10 201116309 [Explanation of main component symbols] 200, 210·Respiratory masks 3, 3, :...Gas ducts 2, 2' ····Cap 31 ·······Card slots 21, 250... Ventilation holes 32 ... • Tube body 22··....... Inner peripheral wall 321... •... Retaining ring 23, 254.·· Surrounding wall 33... •...Locking member 231, 255·Perforation 331 ··· •... Arm η Λ . * .......s ia A ...... ____ too 卓 卓 Η ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..··•... accommodation space 25··.......frame 42··..·...·front opening 251.......frame body 43•...back opening 252 .... ...joining portion 44 •...stop member 253 .... side opening 5 ' 5, ...·media
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