CN106693141A - Anaesthetic and oxygen respiration dual-purpose mask - Google Patents

Abstract

The invention relates to an anaesthetic and oxygen respiration dual-purpose mask. The anaesthetic and oxygen respiration dual-purpose mask comprises an external mask body and an internal mask body, wherein the external mask body can be combined with the nasal part of a user in a sealed mode to form a first cavity, and corresponding to the nasal position, the external mask body is provided with an air inlet communicated with the first cavity for connecting an anaesthetic gas supply device or an oxygen supply device; the internal mask body is detachably connected to the inner side of the external mask body and can be combined with the mouth part of the user to form a second cavity, also, the internal mask body is provided with an air outlet, which is communicated with the second cavity and penetrates the external mask body for communicating with a gas recovery device generating negative pressure. According to the anaesthetic and oxygen respiration dual-purpose mask, the air inlet of the external mask body can provide anaesthetic gas or oxygen for the nasal part, and the air outlet of the internal mask body can effectively recover gas exhaled from the mouth part, and meanwhile, the external mask body can independently serve as a common mask for different applications.

Description

A dual-purpose mask for anesthesia and oxygen inhalation

technical field

The invention relates to the technical field of medical devices, in particular to a dual-purpose mask for anesthesia and oxygen inhalation.

Background technique

At present, when the patient is anesthetized during the operation, a mask is usually used to cover the patient's nose and mouth, and the other end is connected to the threaded tube of the anesthesia machine, and the anesthetic gas is delivered to the patient through the mask with good airtightness. Oxygen can also be delivered to the patient through the same mask when needed during or after surgery.

However, this general-purpose mask does not take into account the removal of the anesthetic gas in the patient's respiratory tract, nor does it effectively recycle the anesthetic gas. Therefore, it is urgent to provide an anesthesia and oxygen inhalation dual-purpose mask that can simultaneously realize intraoperative anesthesia and gas recovery.

Contents of the invention

The technical problem to be solved by the present invention is to provide a dual-purpose anesthesia and oxygen inhalation mask for the defect that the anesthesia mask in the prior art lacks the gas recovery function.

In order to solve the above technical problems, the present invention provides a dual-purpose mask for anesthesia and oxygen inhalation, comprising: an outer mask and an inner mask; the outer mask is airtightly combined with the mouth and nose of the human body to form a first cavity, the outer The position of the mask corresponding to the nose is provided with an air inlet communicating with the first cavity for connecting an anesthetic gas supply device or an oxygen supply device; the inner cover is detachably connected to the inner side of the outer cover, so The inner cover is airtightly combined with the mouth of the human body to form a second cavity, and the inner cover is provided with an air outlet that communicates with the second cavity and passes through the outer cover for communicating with the gas that generates negative pressure. Recovery unit.

According to a preferred embodiment of the present invention, the upper part of the outer cover has a nose-shaped arc surface; the air inlet is arranged at a concave position at the lower end of the nose-shaped arc surface, and extends in the same direction as the nose of the human body for air intake. The same direction.

In a preferred embodiment of the present invention, the inner cover is further provided with a one-way air intake valve communicating with the second cavity and penetrating through the outer cover.

In a preferred embodiment of the present invention, an opening matching the outer diameter of the air outlet or the one-way inlet valve is pre-opened on the surface of the outer cover, and a sealing cover is provided on the opening.

In a preferred embodiment of the present invention, an annular rubber ring is embedded in the opening for sealing when the air outlet or the one-way intake valve passes through the opening.

In a preferred embodiment of the present invention, the inner cover body and the outer cover body are fixed by a buckle.

In a preferred embodiment of the present invention, air holes are provided above the nose-shaped arc surface.

In a preferred embodiment of the present invention, an airbag is provided on the end surface of the outer cover, and an inflation valve is installed on the airbag.

In a preferred embodiment of the present invention, a flexible sealing ring is provided on the end surface of the inner cover body.

In a preferred embodiment of the present invention, straps are provided on both sides of the outer cover.

Implementing the dual-purpose mask for anesthesia and oxygen inhalation of the present invention has the following beneficial effects: the dual-purpose mask for anesthesia and oxygen inhalation of the present invention includes a detachable outer cover body and an inner cover body, wherein the nose is provided through the air inlet of the outer cover body. Anesthesia gas or oxygen, and effectively recover the gas exhaled through the mouth through the gas outlet of the inner mask body, and the outer mask body can also be used as a conventional mask alone to adapt to different applications.

Description of drawings

Fig. 1 is the overall structural diagram of the anesthesia and oxygen inhalation dual-purpose mask provided according to the preferred embodiment of the present invention;

Fig. 2 is an external mask structure diagram of an anesthesia and oxygen inhalation dual-purpose mask provided according to a preferred embodiment of the present invention;

Fig. 3 is a diagram of the first use state of the dual-purpose mask for anesthesia and oxygen inhalation provided according to a preferred embodiment of the present invention;

Fig. 4 is a second usage state diagram of the dual-purpose mask for anesthesia and oxygen inhalation provided according to a preferred embodiment of the present invention;

In the figure: 1-outer cover; 2-inner cover; 3-intake pipe; 4-outlet pipe; 5-airbag; 6-inflatable valve; 7-lacing; 11-first cavity; Mouth; 13-nose arc surface; 14-opening; 15-sealing cover; 16-air hole; 21-second cavity; 22-air outlet; 23-one-way inlet valve; 24-flexible sealing ring; 25 -Snap fasteners.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 , which is an overall structural diagram of an anesthesia and oxygen inhalation dual-purpose mask according to a preferred embodiment of the present invention. As shown in FIG. 1 , the dual-purpose mask for anesthesia and oxygen inhalation provided by this embodiment includes: an outer mask 1 and an inner mask 2 .

Wherein the outer cover body 1 is airtightly combined with the mouth and nose of the human body to form a first cavity 11 . For example, the end surface of the outer cover body 1 fits the nose, cheekbone and mandible of the face of the human body to form a closed cavity. The outer cover body 1 is provided with an air inlet 12 communicating with the first cavity 11 corresponding to the position of the nose, and the air inlet 12 can be connected to an anesthetic gas supply device or an oxygen supply device, such as an anesthesia machine or Oxygen machine. Preferably, the upper part of the outer cover body 1 has a nose-shaped curved surface 13 similar to the physiological shape of the nose of a human body, and the lower end of the nose-shaped curved surface 13 is recessed inward. The air inlet 12 can be set at the concave position of the lower end of the nose-shaped curved surface 13, and the extension direction is consistent with the air intake direction of the nose of the human body, so that the gas transported into the mask through the air inlet 12 can directly enter the nostrils to promote gas absorption .

The inner cover body 2 is detachably installed on the inner side of the outer cover body 1 . The inner cover 2 is airtightly combined with the mouth of the human body to form a second cavity 21 . For example, the end surface of the inner cover body 2 is attached to the edge of the mouth of the human body to form a closed cavity. The inner cover 2 is provided with an air outlet 22 , and the air outlet 22 communicates with the second cavity 21 and passes through the outer cover 11 . The gas outlet 22 can be connected to a gas recovery device through, for example, the gas outlet pipe 4 .

Preferably, the gas recovery device can provide negative pressure for the second chamber 21 , and then draw the gas breathed out through the mouth out of the mask through the gas outlet 22 . In order to maintain the balance of the air flow, the present invention is also provided with a one-way intake valve 23 under the inner cover body 2 . When the inner cover body 2 is connected with the outer cover body 1, the one-way air intake valve 23 penetrates the outer cover body and communicates with the outside air. The one-way intake valve 23 can be opened one-way inwardly when the pressure of the inner cover body 2 is lower than the external air pressure, thereby preventing the internal air pressure of the inner cover body 2 from being too low and affecting normal breathing.

Please refer to FIG. 2 , which is an external mask structure diagram of an anesthesia and oxygen inhalation dual-purpose mask according to a preferred embodiment of the present invention. As shown in Figure 2, an opening 14 is pre-opened on the outer cover body 1, its position corresponds to the position of the air outlet 22 of the inner cover body 2, and its shape is adapted to the outer diameter of the air outlet 22, so as to ensure that the air outlet 22 is in contact with the air outlet 22. The outer cover body 1 is closely combined to prevent gas leakage. In a preferred embodiment, the diameter of the opening 14 is slightly smaller than the outer diameter of the air outlet 22, and the outer cover 1 is made of an elastic material, and when the air outlet 22 penetrates the opening 14, an interference fit is formed with it, A good seal is achieved. In another preferred embodiment, the outer cover body 1 is made of rigid or semi-rigid material, and an annular rubber ring is embedded in the opening 14. The inner diameter of the annular rubber ring is slightly smaller than the outer diameter of the air outlet 22, for The port 22 forms an interference fit with the opening 14 as it passes through it. In order to ensure the airtightness of the first cavity 11 when the outer cover 1 is used alone, a sealing cover 15 is provided on the opening 14 in advance. The sealing cover 15 can be a rubber cover or a plastic peel-off cover, for example, sticking a plastic patch to the peripheral area of the opening 14 for sealing. Similarly, the outer cover body 1 is also provided with a corresponding opening 14 and a sealing cover 15 at a position corresponding to the one-way air intake valve 23, and the sealing is realized in the manner as described above.

An airbag 5 is provided on the end surface of the outer cover body 1, and an inflation valve 6 is installed on the airbag 5 for inflating the airbag 5 so as to achieve a close fit with the face of the human body and achieve a good sealing effect. Both sides of the outer cover body 1 are also provided with straps 7, which can be hung on the two ears to achieve fixation. Preferably, micro air holes 16 are provided on the upper part of the nose-shaped curved surface 13 of the outer cover body 1 for maintaining air pressure balance to ensure breathing comfort.

Preferably, the inner cover 2 can be detachably connected to the outer cover 1 in various ways. In a preferred embodiment, the inner cover body 2 is snapped connected with the outer cover body 1 through a buckle member 25 . The end surface of the inner cover body 2 is provided with a flexible sealing ring 24 for closely fitting with the periphery of the mouth of the human body to achieve a good sealing effect.

The dual-purpose mask for anesthesia and oxygen inhalation of the present invention can use the external mask body 1 as a conventional mask alone. Please refer to FIG. 3 , which is a diagram of the first use state of the dual-purpose mask for anesthesia and oxygen inhalation provided according to a preferred embodiment of the present invention. As shown in the figure, during the operation, a separate external mask body 1 is placed over the nose and mouth of the patient, and is fixed to the head by a tie 7 . The air inlet 12 of the outer cover 1 is connected to an anesthetic gas supply device, such as an anesthesia machine, through an air inlet pipe 3 . At this time, the sealing cover 15 on the outer cover 1 is in a closed state, and the inflation valve 6 is opened to inflate the air bag 5. The outer cover 1 and the mouth and nose of the human body form a closed first cavity 11, thereby delivering anesthetic gas to the patient . When oxygen inhalation is required, oxygen can also be delivered to the first cavity 11 through the air inlet 12 .

The dual-purpose mask for anesthesia and oxygen inhalation of the present invention can also be used as a mask with gas recovery function by connecting the outer cover body 1 and the inner cover body 2 . Please refer to FIG. 4 , which is a diagram of the second use state of the dual-purpose mask for anesthesia and oxygen inhalation according to a preferred embodiment of the present invention. As shown in the figure, uncover the sealing cover 15 of the outer cover body 1, insert the air outlet 22 of the inner cover body 2 and the one-way air intake valve 23 into the respective openings 14, and realize the fixed. Subsequently, the outer mask 1 together with the inner mask 2 is fixed on the patient's face. During surgery, the gas inlet 12 is connected to an anesthetic gas supply device, such as an anesthesia machine, through the gas inlet tube 3 . Connect the gas outlet 22 to the gas recovery device through the gas outlet pipe 4, and open the negative pressure recovery gas. The anesthetic gas will flow into the first cavity 11 of the outer cover 1 from the air inlet 12, and the patient inhales the anesthetic gas through the nose, while the gas recovery device generates negative pressure in the second cavity 21 of the inner cover 2, the The negative pressure draws exhaled air from the patient's mouth and recycles it. After surgery, the air inlet 12 can be connected to an oxygen supply through the air inlet tube 3 . Similarly, oxygen flows into the first cavity 11 of the outer cover body 1 from the air inlet 12, and the patient inhales oxygen through the nose, while the gas recovery device generates negative pressure in the second cavity 21 of the inner cover body 2, the Negative pressure draws residual anesthetic gas or a mixture with oxygen from the patient's airway and recycles it.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. it is a kind of to anaesthetize the dual-purpose mask of oxygen uptake, it is characterised in that including：Outer enclosure (1) and internal cover body (2)；

The outer enclosure (1) is closed with human body snout to combine to form the first cavity (11), outer enclosure (1) the correspondence nose Position installs the air inlet (12) connected with first cavity (11), for connecting anesthetic gases feedway or oxygen Feedway；

The internal cover body (2) is detachably connected on the outer enclosure (1) inner side, the internal cover body (2) and human body oral area Closed to combine to form the second cavity (21), the internal cover body (2) is provided with and is connected and through described with second cavity (21) The gas outlet (22) of outer enclosure (1), the gas concentration unit of negative pressure is produced for connecting.

2. it is according to claim 1 to anaesthetize the dual-purpose mask of oxygen uptake, it is characterised in that the top tool of the outer enclosure (1) There is nose type cambered surface (13)；The air inlet (12) is arranged on the position of concave end under the nose type cambered surface (13), and bearing of trend It is consistent with human body nose airintake direction.

3. it is according to claim 1 and 2 to anaesthetize the dual-purpose mask of oxygen uptake, it is characterised in that also to be set on the internal cover body (2) Having connected with second cavity (21) and through the Unidirectional air inlet valve (23) of the outer enclosure (1).

4. it is according to claim 3 to anaesthetize the dual-purpose mask of oxygen uptake, it is characterised in that outer enclosure (1) surface is advance The opening (14) being adapted to the external diameter of the gas outlet (22) or Unidirectional air inlet valve (23) is offered, and on the opening (14) It is provided with sealing cover body (15).

5. it is according to claim 4 to anaesthetize the dual-purpose mask of oxygen uptake, it is characterised in that the opening (14) is embedded with annular rubber Cushion rubber, for being sealed when the gas outlet (22) or Unidirectional air inlet valve (23) are through the opening (14).

6. the dual-purpose mask of anesthesia oxygen uptake according to any one of claim 1-4, it is characterised in that the internal cover body (2) it is fixed by fastener (25) with outer enclosure (1).

7. the dual-purpose mask of anesthesia oxygen uptake according to any one of claim 1-4, it is characterised in that the nose type cambered surface (13) top is provided with stomata (16).

8. the dual-purpose mask of anesthesia oxygen uptake according to any one of claim 1-4, it is characterised in that the outer enclosure (1) end face is provided with air bag (5), and charge valve (6) is provided with the air bag (5).

9. the dual-purpose mask of anesthesia oxygen uptake according to any one of claim 1-4, it is characterised in that the internal cover body (2) end face is provided with flexible seal ring (24).

10. the dual-purpose mask of anesthesia oxygen uptake according to any one of claim 1-4, it is characterised in that the outer enclosure (1) both sides are provided with frenulum (7).