Laryngeal Mask

Abstract

A laryngeal mask is provided which has a mask body having a capsule body and a support body, wherein a groove is provided on the top of the support body, and the capsule body is correspondingly disposed on the groove; and a tube body having an airway tube body, wherein one end of the tube body is bonded to the support body, and the bonding portion is provided with an opening communicating with one end of the airway tube body.

Claims

1. A laryngeal mask, comprising a mask body having a capsule body and a support body, wherein a groove is provided on the top of the support body and the capsule body is correspondingly disposed on the groove; and a tube body having an airway tube body, wherein one end of the tube body is bonded to the support body, and the bonding portion is provided with an opening communicating with one end of the airway tube body.

2. The laryngeal mask of claim 1, wherein the support body is substantially an annular body.

3. The laryngeal mask of claim 2, wherein the groove and the capsule body are substantially in the shape of a ring.

4. The laryngeal mask of claim 1, wherein the top surface of the support body is a curved surface and the curvature of the curved surface is substantially in conformance to the curvature of the oral airway of a human body.

5. The laryngeal mask of claim 1, wherein the tube body is provided with a curved segment in the lengthwise direction, and the curvature of the curved segment facilitates insertion of the laryngeal mask into the larynx of a human body.

6. The laryngeal mask of claim 5, wherein the curvature of the curved segment of the tube body is 60-80 degrees.

7. The laryngeal mask of claim 1, wherein the interior of the capsule body is provided with a filler.

8. The laryngeal mask of claim 7, wherein the tube body further comprises a filling tube body, and one end of the filling tube body is connected with the capsule body for inputting and extracting the filler in and out of the capsule body.

9. The laryngeal mask of claim 7, wherein the filler is a gas or a liquid.

10. The laryngeal mask of claim 9, wherein the liquid is a hydrogel.

11. The laryngeal mask of claim 8, wherein the tube body further comprises an extraction tube body.

12. The laryngeal mask of claim 11, wherein the extraction tube body further comprises an extraction tube for extracting esophageal liquid and/or gastric fluid.

13. The laryngeal mask of claim 11, wherein the tube body is a three-cavity tube body including the airway tube body, the filling tube body and the extraction tube body arranged side by side in parallel but not in connection with one another.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 is a schematic view of a conventional laryngeal mask.

[0029] FIG. 2 is a structural diagram of a capsule body-free laryngeal mask of the present invention.

[0030] FIG. 3 is a structural diagram of a laryngeal mask having a capsule body of the present invention.

EXAMPLES

[0031] The present invention may be implemented in many different forms and should not be construed as limited to the examples set forth herein. The described examples are not limited to the scope of the present invention as described in the claims.

[0032] As shown in FIG. 2, it is a schematic structural diagram of a laryngeal mask without a capsule body. The laryngeal mask 20 comprised: a support body 21, wherein a groove 211 was provided on the top of the support body 21, and the top surface of the support body 21 was the side facing the oral airway of a human body when the laryngeal mask was used clinically; and a tube body 22 having an airway tube body 221, a filling tube body 222 and an extraction tube body 223, wherein one end of the tube body 22 was bonded to the support body 21, and the bonding portion thereof was provided with an opening 215 in communication with one end of the airway tube body 221.

[0033] An airway port 212 was provided on the top of the support body, the groove 211 was disposed around the periphery of the airway port 212, so that the groove 211 was substantially in the shape of a ring. The support body 21 was used for receiving and supporting a capsule body, thus the capsule body was correspondingly disposed on the groove 211 of the support body 21; the shape of the capsule body substantially corresponded to the shape of the entire groove 211. As a result, the shape of the capsule body was substantially in the shape of a ring. In addition, the groove 211 had a fill-in opening 213 allowing the filling tube body 222 to pass through and bond to the capsule body for the filling tube body 222 to input a filling liquid or gas into the capsule body.

[0034] The tube body 22 was a three-cavity tube body including the airway tube body 221, the filling tube body 222, and the extraction tube body 223 arranged side by side in parallel but not in connection with one another. The airway tube body 221 was used for introducing gas into the laryngopharynx of the patient, and the filling tube body 222 served as a conduit passage for a filling tube to be additionally disposed in the filling tube body 222, the filling tube passed through the filling tube body 222 to connect with the capsule body for inputting and extracting a filler (for example, a liquid or a gas) into the capsule body, thereby controlling the volume of the capsule body. In addition, the support body 21 had an open hole 214 which was in communication with the extraction tube body 223. Therefore, the medical personnel was able to insert an extraction tube in the extraction tube body 223, the extraction tube passed through the extraction tube body 223, and eventually passed through the open hole 214, facing towards the direction of esophagus. Therefore, the medical personnel was able to extract residual gastric and esophageal liquids, digestive liquids or gases by using the extraction tube.

[0035] Therefore, a capsule body was further disposed on the groove 211, which constituted the design of the entire structure of the laryngeal mask of the present invention. Therefore, as shown in FIG. 3, it is a schematic structural diagram of the laryngeal mask having a capsule body of the present invention. The laryngeal mask 20 comprised: a mask body 23 having a capsule body 24 and a support body 21, wherein a groove was provided on the top of the support body 21, the capsule body 24 was correspondingly disposed on the groove, wherein the top surface of the support body 21 was the side facing the oral airway of a human body when the laryngeal mask was used clinically; and a tube body 22 having an airway tube body 221, a filling tube body 222 and an extraction tube body 223, wherein one end of the tube body 22 was bonded to the support body, the boding portion thereof was provided with an opening 215 communicating with one end of the airway tube body 221, and one end of the filling tube body 222 was in communication with the capsule body 24.

[0036] When the laryngeal mask 20 of the present invention was used clinically, the applications and manners of use were substantially the same as those of a conventional laryngeal mask. The capsule body 24 of the laryngeal mask 20 of the present invention was first unfilled, i.e., unexpanded, the laryngeal mask 20 was gradually extended from a patient's mouth until it reached the larynx. Thus, the tube body 22 of the laryngeal mask of the present invention was designed to have a cured segment in the lengthwise direction, and the curvature of which facilitated the insertion of the laryngeal mask 20 into the patient's larynx. In addition, through the tube body 22, the airway tube body 221, the filling tube body 222 and the extraction tube body 223 were designed to be arranged side by side, so that the airway tube body 221, the filling tube body 222 and the extraction tube body 223 were respectively in communication with the support body 21, and the thickness of the adjacent tube walls formed between the three tubes was able to prevent the tube body of the three tubes from being folded to avoid gas blockage. Further, the thickness of the adjacent tube walls formed by the tubes arranged side by side in parallel could also be used as a seaming device to effectively prevent patients from biting the tubes to block the gas flow.

[0037] When the laryngeal mask 20 reached the opening at the laryngopharynx of the patient, the end surface of the mask body 23 having the capsule body 24 was aligned with the opening of trachea at the larynx of the patient, and then a filling tube was allowed to pass through the filling tube body 222 and connected with the capsule body 24, the medical personnel inputted a filler (such as a hydrogel or a gas) into the capsule body 24 through the filling tube, so that the capsule 24 was fully inflated to cover the opening of trachea at the larynx of the patient. In addition, the end of the filing tube body 222 was provided with a check valve for controlling the input or extraction of the filler.

[0038] Since the capsule body 24 of the present invention was mounted on the support body 21, the top surface of the support body 21, that is, the side on which the capsule body 24 was mounted, was a curved surface, the curvature of the curved surface was substantially in conformance to the curvature of the oral airway of the human body. Therefore, the groove on the top surface of the support body 21 also had the curvature, as a result, the shape and the curvature of the inflated and expanded capsule body 24 correspondingly disposed on the groove conform to the curvature of the oral airway, and tightly adhere to the laryngopharynx of the patient. Further, the support body 21 could be used as a fixed base to provide a specific supporting force to the capsule body 24, so that the mask body 23 could tightly cover the opening of the laryngopharynx of the patient. Therefore, when the mask body 23 inputted gas through the airway tube body 221, the gas could be stably delivered from the opening 215 at the bonding portion of the tube body 22 and the support body 21 to the oral airway of the patient, causing no gas dissipation.

[0039] In addition, the open hole 214 on the support body 21 must align with the esophagus of the patient, so that the medical personnel could pass an extraction tube through the extraction tube body 223 and the open hole 214 towards the esophagus to extract and discharge the residual gastric and esophageal liquids or digestive liquids out of the patient's body.

[0040] The above-described examples are preferred embodiments of the present invention only, they are not intended to limit the scope of the present invention, that is, simple and equivalent variations and modifications made according to the claims and the content of the specification of the present invention should be within the scope of the present invention.