Air leakage prevention anaesthetic mask

Abstract

The utility model discloses an air leakage prevention anaesthetic mask in the technical field of medical instruments. The air leakage prevention anaesthetic mask comprises a mask body composed of a first mask body, a second mask body and a soft silica gel face. The bottom edge of the first mask body and the bottom edge of the second mask body are both connected with an air inflation bag, and the air inflation bag can be attached to the face. The mask is provided with an oxygen inlet connector and an inflation valve of the inflation bag. The soft silica gel face is arranged between the first mask body and the second mask body and used for connecting the first mask body and the second mask body, so that the included angle between the first mask body and the second mask body is adjustable, the mask can be attached to various face capacities, and the occurrence rate of mask ventilation difficulty of an edentulous patient and a temporomandibular joint sunken patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an air leakage-proof anesthesia mask. Background Art

[0002] Currently, anesthesia masks are mainly used in anesthesia induction, emergency resuscitation, and other airway management processes that require positive pressure ventilation for patients, and are occasionally used for general oxygen therapy.

[0003] An anesthesia mask generally includes a mask body and an inflatable bag. When using an anesthesia mask, if the mask body does not fit well against the patient's face, the inflatable bag can be deformed with force to fill the gap between the mask body and the patient's face to reduce the probability of air leakage.

[0004] However, when the anesthesia mask is used for elderly thin patients, patients with long and pointed mandibles, edentulous patients and patients with sunken temporomandibular joints, the gap between the mask body made of hard PVC and the patient's face is too large. Even if force is used to deform the inflatable bag, it is difficult to fill the gap between the mask body and the patient's face. The anesthesia mask cannot fit the patient's face perfectly, and the leakage rate is high during positive pressure ventilation, which results in the patient not getting adequate oxygen supply.

[0005] In summary, traditional anesthesia masks have poor adaptability to patients with different facial features and cannot perfectly fit the patient's face. Utility Model Content

[0006] The utility model aims to provide an air leakage-proof anesthesia mask to solve the technical problem that the anesthesia mask in the prior art has poor adaptability to patients with different facial features and cannot perfectly fit the patient's face.

[0007] In order to solve the above technical problems, the utility model specifically provides an anti-leakage anesthesia mask, comprising a mask composed of a first mask body, a second mask body and a soft silicone surface;

[0008] The bottom edges of the first cover body and the second cover body are connected to the inflatable bag, and the inflatable bag can fit the face;

[0009] The mask is provided with an oxygen intake interface and an inflation valve of the inflatable bag;

[0010] The soft silicone surface is arranged between the first cover body and the second cover body, and is used to connect the first cover body and the second cover body, so that the angle between the first cover body and the second cover body is adjustable so as to fit a variety of facial features.

[0011] As a preferred solution of the present invention, the plane where the connection edge of the first cover body and the soft silicone surface is located is perpendicular to the bottom edge of the first cover body, and the angle between the plane where the connection edge of the second cover body and the soft silicone surface is located and the bottom edge of the second cover body is 50°-70°.

[0012] As a preferred solution of the utility model, the air inlet interface is located on the first cover body and at the edge of the connection surface between the first cover body and the soft silicone surface;

[0013] The inflation valve is located at the edge of the first cover body.

[0014] As a preferred solution of the utility model, finger notches are provided on the first cover body and the second cover body to facilitate operation of the mask.

[0015] As a preferred solution of the utility model, the finger notches are respectively located in the middle of the two cover bodies.

[0016] As a preferred solution of the utility model, the finger notches are respectively a thumb notch and an index finger notch.

[0017] As a preferred solution of the utility model, a first Velcro fleece surface is fixedly bonded between the two finger notches, and the first Velcro fleece surface is bonded to a first Velcro hook surface on the strap;

[0018] The strap can be put on the patient's head to fix the mask on the patient's face.

[0019] As a preferred solution of the utility model, the straps include two facial straps, two temporal straps and two occipital straps;

[0020] The two first Velcro hook surfaces are respectively arranged at the middle of the two facial strips;

[0021] The two ends of the facial strip are respectively connected to the two temporal strips, and both ends of the facial strip are elastic bands;

[0022] The two ends of the temporal strap are respectively connected to the two ends on the same side of the two occipital straps, so that the two temporal straps and the two occipital straps form a closed loop, and the two ends of one of the temporal straps are connected to the end of the occipital strap through a tightness adjustment structure.

[0023] As a preferred solution of the utility model, the tightness adjustment structure includes a buckle fixedly arranged on the end of the temporal strap, a second Velcro hook surface fixedly arranged on the occipital strap, and a second Velcro fleece surface;

[0024] The second Velcro hook surface can pass through the buckle and bond with the second Velcro fleece surface.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The mask of the present application includes three parts: a first cover body, a second cover body and a soft silicone surface. The soft silicone surface is arranged between the first cover body and the second cover body, so that the bottom edges of the first cover body and the second cover body can be in the same plane, and the bottom edges of the first cover body and the second cover body can present a certain angle within a certain range (that is, the first cover body can be easily bent relative to the second cover body), which can adapt to the facial features of more patients (such as elderly thin patients and patients with long and pointed mandibles), reduce the width of the gap between the mask and the patient's face, so that the inflatable bag can smoothly fill the gap between the mask and the patient's face, and reduce the probability of air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the mask and the inflatable bag in the embodiment of the utility model;

[0029] Figure 2 for Figure 1 Schematic diagram of top view;

[0030] Figure 3 for Figure 1 A schematic diagram of the main view;

[0031] Figure 4 It is a schematic diagram of the embodiment of the utility model when the first cover body and the second cover body form an angle;

[0032] Figure 5 It is a schematic diagram of the structure of the binding strap in the embodiment of the utility model.

[0033] The numbers in the figure represent the following:

[0034] 1-first cover body, 2-second cover body, 3-soft silicone surface, 4-bottom edge, 5-inflatable bag, 6-air inlet interface, 7-inflatable valve, 8-thumb notch, 9-index finger notch, 10-first Velcro fur surface, 11-first Velcro hook surface, 12-facial strip, 13-temporal strip, 14-occipital strip, 15-elastic band, 16-buckle, 17-second Velcro hook surface, 18-second Velcro fur surface. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The utility model specifically provides an anti-leakage anesthesia mask, comprising a mask composed of a first mask body 1, a second mask body 2 and a soft silicone surface 3;

[0037] The bottom edges 4 of the first cover body 1 and the second cover body 2 are both connected to the inflatable bag 5, and the inflatable bag 5 can fit the face to reduce air leakage;

[0038] The mask is provided with an oxygen inlet interface 6 and an inflation valve 7 for the inflatable bag 5; during positive pressure ventilation, oxygen enters the mask from the inlet structure, and air is injected into the inflatable bag 5 through the inflation valve 7, so that the inflatable bag 5 expands;

[0039] The soft silicone surface 3 is disposed between the first cover body 1 and the second cover body 2, and is used to connect the first cover body 1 and the second cover body 2, so that the angle between the first cover body 1 and the second cover body 2 is adjustable so as to fit a variety of facial features.

[0040] The two covers are made of hard PVC and the bottom edge is made of hard plastic.

[0041] The traditional mask only has a mask body made of hard PVC material, while the mask of the present application includes three parts: a first mask body 1, a second mask body 2 and a soft silicone surface 3.

[0042] The soft silicone surface 3 is arranged between the first cover body 1 and the second cover body 2, so that the bottom edges of the first cover body 1 and the second cover body 2 can be in the same plane, and the bottom edges of the first cover body 1 and the second cover body 2 can present a certain angle within a certain range (that is, the first cover body 1 can be easily bent relative to the second cover body 2), which can adapt to the facial features of more patients (such as elderly thin patients and patients with long and pointed mandibles), reduce the width of the gap between the mask and the patient's face, so that the inflatable bag 5 can smoothly fill the gap between the mask and the patient's face, and reduce the probability of air leakage.

[0043] At the same time, due to the presence of the soft silicone surface 3, medical staff can more easily and labor-savingly operate the bottom edge of the mask to fit the inflatable bag 5 when performing mask ventilation, which is easy to operate.

[0044] Furthermore, in practice, the differences in facial features of patients are mainly concentrated in the mandibular part, which only occupies a small area of ​​the face. Therefore, the utility model provides the following segmentation scheme for the first mask body 1 and the second mask body 2:

[0045] The plane where the connection edge of the first cover body 1 and the soft silicone surface 3 is located is perpendicular to the bottom edge of the first cover body 1, and the angle between the plane where the connection edge of the second cover body 2 and the soft silicone surface 3 is located and the bottom edge of the second cover body 2 is 50°-70°, preferably 60°.

[0046] The first mask body 1 is relatively large in size and is not suitable for large-angle bending and deformation operations to reduce operational difficulty and save physical strength. Therefore, it is responsible for fitting parts with relatively regular characteristic shapes (different patients) such as cheeks.

[0047] The second mask body 2 is relatively small in size, and is not difficult to operate even when being bent and deformed at a large angle. Therefore, it is capable of fitting to parts with greatly different characteristic shapes (different patients) such as the mandible.

[0048] Furthermore, since the nasal cavity of the patient is covered by the first mask body 1 , the air inlet interface 6 is located on the first mask body 1 and at the edge of the connection surface between the first mask body 1 and the soft silicone surface 3 .

[0049] Furthermore, the inflation valve 7 is located at the edge of the first cover body 1 to facilitate inflation.

[0050] Furthermore, in order to facilitate medical staff to apply force to the mask, finger notches are provided on the first cover body 1 and the second cover body 2. The finger notches are arc-shaped depressions that can fit the contour of the fingers. When operating the mask, the fingers are located in the finger notches, which can prevent the fingers from sliding on the mask, thereby facilitating the operation of the mask.

[0051] Furthermore, the finger notches are located in the middle of the two mask bodies. On the one hand, the distance between the two finger notches is adapted to the span of the thumb and index finger of the medical staff; on the other hand, the finger notches are located in the middle, so that the force on each part of the bottom edge of the mask is evenly applied, avoiding the occurrence of local point leakage.

[0052] Furthermore, according to the operation habits of medical staff and the strength of human fingers, the finger notches are respectively set as a thumb notch 8 and an index finger notch 9 .

[0053] Furthermore, a first Velcro fleece surface 10 is fixedly bonded between the two finger notches, and the first Velcro fleece surface 10 is bonded to a first Velcro hook surface 11 on the strap, and the strap can be put on the patient's head to fix the mask on the patient's face.

[0054] After the medical staff has initially operated the mask to fit the patient's face, the mask can be fixed to the patient's face with straps to keep the mask fit between the face and the face, freeing the medical staff's hands.

[0055] It should be noted that only the first Velcro fleece surface 10 but not the first Velcro hook surface 11 should be glued to the finger notch to avoid the hook surface from pricking the hand.

[0056] Further, the straps include two facial straps 12, two temporal straps 13 and two occipital straps 14;

[0057] The two first Velcro hook surfaces 11 are respectively arranged at the middle of the two facial strips 12, so that the facial strips 12 are symmetrically distributed on both sides of the face;

[0058] The two ends of the facial strip 12 are respectively connected to two temporal strips 13. The temporal strips 13 are located at the sides of the face and the ears, and play the role of connecting the facial strip 12 and the occipital strip 14.

[0059] Both ends of the facial strap 12 are elastic straps 15, and the rest of the facial strap 12 and the temporal strap 13 and the occipital strap 14 are made of nylon;

[0060] The function of the elastic band 15 is to continue to tighten the facial band 12 after it is in close contact with the mask, and to apply elastic force to the mask. Even if the facial band 12 becomes slightly loose later, it still has a tightening effect on the mask.

[0061] The two ends of the temporal strap 13 are respectively connected to the two ends of the same side of the two occipital straps 14, so that the two temporal straps 13 and the two occipital straps 14 form a closed loop, and the two ends of one of the temporal straps 13 are connected to the end of the occipital strap 14 through a tightness adjustment structure.

[0062] The temporal strap 13 is located at the back of the human head. After the first Velcro hook surface 11 in the middle of the facial strap 12 is bonded to the first Velcro fleece surfaces 10 on the two mask bodies, the temporal strap 13 and the occipital strap 14 are tightened through the elastic adjustment structure to shorten the length of the closed loop formed by the two, and then a pulling force is applied to the facial strap 12 so that the facial strap 12 fixes the mask on the human face.

[0063] Furthermore, the tightness adjustment structure includes a buckle 16 fixedly arranged at the end of the temporal strap 13, a second Velcro hook surface 17 fixedly arranged on the occipital strap 14, and a second Velcro fleece surface 18; the second Velcro hook surface 17 can pass through the buckle 16 and bond with the second Velcro fleece surface 18.

[0064] The indications for use of the strap combined with the mask include: preparing patients for oxygen and nitrogen administration before anesthesia induction; performing general anesthesia ventilation for patients with no risk of reflux aspiration and short surgery; patients requiring mask positive pressure ventilation; and other clinical applications requiring assisted or controlled respiratory therapy.

[0065] The routine use of mask ventilation is as follows:

[0066] One-handed EC technique: The thumb and index finger are used to control the seal of the face mask, forming the classic C shape, and the E part is achieved by lifting the mandible upward with the third, fourth and fifth fingers.

[0067] Bimanual EC technique: Place the thumb and index finger of both hands on top of the mask to press down and seal, and place the other three fingers at the mandibular angle to lift the mandible and perform mandibular thrust.

[0068] Bimanual VE technique: Place four fingers of both hands at the mandibular angles on both sides to lift the mandible, and use the thumbs and thenar eminence to maintain the mask seal.

[0069] Two-handed EC-VE combined technique: one hand uses the EC technique and the other hand uses the VE technique for mask ventilation.

[0070] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An air leakage-proof anesthesia mask, characterized in that: It comprises a mask body consisting of a first mask body (1), a second mask body (2) and a soft silicone surface (3); The bottom edges (4) of the first cover body (1) and the second cover body (2) are both connected to an inflatable bag (5), and the inflatable bag (5) can fit the face; The mask body is provided with an oxygen inlet interface (6) and an inflation valve (7) of the inflation bag (5); The soft silicone surface (3) is arranged between the first cover body (1) and the second cover body (2) and is used to connect the first cover body (1) and the second cover body (2) so that the angle between the first cover body (1) and the second cover body (2) is adjustable.

2. The air leakage-proof anesthesia mask according to claim 1, characterized in that: The plane where the connection edge between the first cover body (1) and the soft silicone surface (3) is located is perpendicular to the bottom edge of the first cover body (1), and the angle between the plane where the connection edge between the second cover body (2) and the soft silicone surface (3) is located and the bottom edge of the second cover body (2) is 50°-70°.

3. The air leakage-proof anesthesia mask according to claim 1, characterized in that: The air inlet interface (6) is located on the first cover body (1) and at the edge of the connection surface between the first cover body (1) and the soft silicone surface (3); The inflation valve (7) is located at the edge of the first cover body (1).

4. The air leakage-proof anesthesia mask according to claim 1, characterized in that: Finger notches are provided on the first cover body (1) and the second cover body (2) to facilitate operation of the mask.

5. The air leakage-proof anesthesia mask according to claim 4, characterized in that: The finger notches are respectively located in the middle of the two cover bodies.

6. The air leakage-proof anesthesia mask according to claim 5, characterized in that: The finger notches are respectively the thumb notch (8) and the index finger notch (9).

7. The air leakage-proof anesthesia mask according to claim 6, characterized in that: A first Velcro fleece surface (10) is fixedly bonded between the two finger notches, and the first Velcro fleece surface (10) is bonded to a first Velcro hook surface (11) on the strap; The strap can be put on the patient's head to fix the mask on the patient's face.

8. The air leakage-proof anesthesia mask according to claim 7, characterized in that: The straps include two facial straps (12), two temporal straps (13) and two occipital straps (14); The two first Velcro hook surfaces (11) are respectively arranged in the middle of the two facial strips (12); The two ends of the facial strip (12) are respectively connected to the two temporal strips (13), and both ends of the facial strip (12) are elastic bands (15); The two ends of the temporal strap (13) are respectively connected to the two ends on the same side of the two occipital straps (14), so that the two temporal straps (13) and the two occipital straps (14) form a closed loop, and the two ends of one of the temporal straps (13) are connected to the end of the occipital strap (14) through a tension adjustment structure.

9. The air leakage-proof anesthesia mask according to claim 8, characterized in that: The tightness adjustment structure comprises a buckle (16) fixedly arranged at the end of the temporal strap (13), a second Velcro hook surface (17) fixedly arranged on the occipital strap (14), and a second Velcro fleece surface (18); The second Velcro hook surface (17) can pass through the buckle (16) and be bonded to the second Velcro fleece surface (18).

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