TWI844214B - Laryngeal mask airway assembly and laryngeal mask airway - Google Patents

Abstract

A laryngeal mask airway assembly and a laryngeal mask airway are disclosed. The laryngeal mask airway assembly has a laryngeal mask airway and a supporting element with a supporting portion. The laryngeal mask airway has a gas filled portion and a tube portion. The gas filled portion has an opening portion and an enclosed portion. The tube portion connects with the enclosed portion. The laryngeal mask airway assembly is characterized in that the opening portion has a front end and the laryngeal mask airway has a supporting plate situated at the front end and the supporting plate has multiple through holes. When the laryngeal mask airway connects with the supporting element, the supporting portion situates between the opening portion and the supporting plate.

Description

Laryngeal mask assembly, laryngeal mask and support

The present invention relates to a laryngeal mask assembly, a laryngeal mask and a support, in particular, a laryngeal mask assembly, a laryngeal mask and a support that can increase the bonding strength between the support and the laryngeal mask when the medical staff inserts the laryngeal mask, so that the support does not separate from the laryngeal mask during the insertion process, and after the laryngeal mask is placed, it does not affect the patient's oxygen supply.

The laryngeal mask of the known art is inserted by medical staff from the patient's throat into the patient's tracheal opening so as to inject oxygen into the patient's body. However, due to the curved structure of the upper jaw and throat of the human body, when medical staff want to insert the laryngeal mask into the human body through the throat, the front end of the laryngeal mask is often squeezed and deformed due to the thrust and hits the inside of the patient's mouth or throat, causing the medical staff to be unable to apply force and unable to push the laryngeal mask. In order to solve the above-mentioned problems, during the process of placing the laryngeal mask, the medical staff will put their fingers into the patient's mouth to stabilize the laryngeal mask, but putting the fingers into the patient's mouth inevitably has the risk of being bitten by the patient, and if the patient's teeth are tight or the oral space is narrow, it is difficult for the fingers to penetrate into the patient's mouth to operate, resulting in difficulty in placing the laryngeal mask. The Taiwan patent application No. 096205250 (US counterpart US 2008-0236592 A1) provides a buckle structure at the front end of the laryngeal mask for a control piece to lean against. However, the buckle structure of this case is limited by the long strip shape of the buckle, resulting in poor bonding strength between the buckle and the control piece. It is easy for the control piece to separate from the buckle during the process of placing the laryngeal mask in the patient's throat. In addition, the process of the laryngeal mask entering the patient's throat is completely in the oral cavity and cannot be visually monitored. If the control piece is separated from the buckle, the front end of the control piece can easily pierce the patient's throat tissue and cause serious injuries. Therefore, the buckle structure must be strengthened to ensure safe use.

In addition, Taiwan Patent Application No. 097103784 (US counterpart US-2009-0194114-A1) and No. 097103785 (US counterpart US-2009-0194102-A1) are also patent applications for laryngeal mask with clip. Both cases set a top and sheath on the laryngeal mask body so that the clip can be stably combined with the laryngeal mask. Although the abutment and the sheath on the body can make the front end of the laryngeal mask less likely to deform, thereby reducing the difficulty of laryngeal mask placement, the sheath and the abutment in these two applications will block the opening of the mask body. When the laryngeal mask is placed, the sheath and the abutment will prevent oxygen from entering the patient's trachea. For patients who have respiratory arrest during surgery, if the oxygen supply is insufficient, it will cause a certain degree of potential risk to the surgery, so there is a need for improvement.

The main purpose of the present invention is to provide a laryngeal mask assembly and a laryngeal mask that can increase the bonding strength between the support and the laryngeal mask when medical personnel place the laryngeal mask, so that the support does not separate from the laryngeal mask during the placement process, and does not affect the patient's oxygen supply after the laryngeal mask is placed.

To achieve the above-mentioned purpose, the laryngeal mask of the present invention includes a laryngeal mask body and a tube body, the laryngeal mask body includes an opening part and a closing part, and the tube body is connected to the closing part. The support member includes a support part, which is characterized in that: the opening part includes a front end, the laryngeal mask includes a support sheet, the support sheet is arranged at the front end and the support sheet includes a plurality of air holes; when the laryngeal mask and the support member are combined, the support part is between the support sheet and the opening part.

The present invention also provides a laryngeal mask assembly, which includes a laryngeal mask and a support member. The laryngeal mask includes a laryngeal mask body and a tube body, wherein the laryngeal mask body includes an opening portion and a closing portion, and the tube body is connected to the closing portion. The support member includes a support portion, which is characterized in that: the opening portion includes a front end, the laryngeal mask includes a support sheet, the support sheet is arranged at the front end and the support sheet includes a plurality of air holes; when the laryngeal mask and the support member are combined, the support portion is between the support sheet and the opening portion.

The present invention also provides a support member that can be detachably connected to a laryngeal mask, wherein the laryngeal mask body includes an opening portion, a closing portion, and a support sheet, and the opening portion includes a front end, the support sheet is arranged at the front end, one end of the tube body is connected to the closing portion, and the support includes a support portion, which is characterized in that when the laryngeal mask is combined with the support member, the support portion is between the support sheet and the opening portion

By combining the laryngeal mask of the present invention with the support, the support is firstly combined with the laryngeal mask before the laryngeal mask of the present invention is placed, so that the front end of the laryngeal mask is pushed and reinforced by the support, thereby enhancing the strength of the front end of the laryngeal mask of the present invention, so that the front end will not be deformed by force, and the medical staff can smoothly place the laryngeal mask of the present invention into the patient's tracheal opening, solving the problem that the traditional laryngeal mask is not easy to place. At the same time, the laryngeal mask of the present invention is easy to place. The mask has multiple air holes on the support sheet. When the laryngeal mask of the present invention is installed, the air holes on the support sheet allow oxygen to pass through without being blocked by the support sheet and enter the human trachea normally, solving the problem that the sheath and the top of the laryngeal mask of the prior art block the gas from entering the human trachea, and the support of the laryngeal mask of the prior art is not strong enough to connect with the laryngeal mask, causing the support to separate from the laryngeal mask during the installation process and injure the patient.

1: Laryngeal mask airway

10: Laryngeal mask body

11: Opening

12: Closed section

20: Tube body

90, 90a, 90b: Support parts

91, 91a: Grip part

92, 92a, 92b: Supporting part

921, 921a: front end of the support part

30: Support sheet

31: Stoma

111:Front end

32: Inner side

s: Storage space

100, 100a, 100b: Laryngeal mask assembly

40:Fixer

41: Environmental Protection Department

42: Card slot

93, 93a, 93b: curved part

94: Camera

33: First side

331: Central area

332: Top point

FIG. 1A is a disassembled view of an embodiment of the laryngeal mask and laryngeal mask assembly of the present invention.

Figure 1B is a partial enlarged view of the laryngeal mask body area of the laryngeal mask of the present invention.

Figure 2 is a three-dimensional diagram of the first embodiment of the laryngeal mask assembly of the present invention.

Figure 3 is a three-dimensional diagram of an embodiment of the laryngeal mask of the present invention.

Figure 4 is a three-dimensional diagram of the second embodiment of the laryngeal mask assembly of the present invention.

Figure 5 is a three-dimensional diagram of the third embodiment of the laryngeal mask assembly of the present invention.

In order to better understand the technical content of the present invention, a preferred specific embodiment is described as follows. Please refer to Figures 1A, 1B, 2 and 3 for the exploded view of the laryngeal mask and one embodiment of the laryngeal mask assembly of the present invention, the partial enlarged view of the laryngeal mask body area of the laryngeal mask, the three-dimensional view of the first embodiment of the laryngeal mask assembly and the three-dimensional view of one embodiment of the laryngeal mask.

As shown in Fig. 1A, Fig. 1B, Fig. 2 and Fig. 3, in this embodiment, the laryngeal mask assembly 100 of the present invention comprises a laryngeal mask 1 and a support member 90, wherein the laryngeal mask 1 and the support member 90 are detachably combined so that the medical staff can place the laryngeal mask 1 at the patient's tracheal opening. The laryngeal mask 1 of the present invention comprises a laryngeal mask body 10 and a tube body 20, wherein the laryngeal mask body 10 comprises an opening portion 11 and a closing portion 12, and one end of the tube body 20 is connected to the closing portion 12. The support member 90 includes a gripping portion 91 and a support portion 92. In this embodiment, the laryngeal mask body 10 can be an inflatable airbag or (thermoplastic elastic rubber (TPU)). The support member 90 is an iron sheet. In accordance with the shape of the laryngeal mask body 10, there is a curved portion 93 between the gripping portion 91 and the support portion 92. It should be noted that the present invention is not limited to this embodiment. The support member 90 can be made of a material with hardness and is not easily deformed.

As shown in FIG. 1A , FIG. 1B , FIG. 2 and FIG. 3 , the present invention is characterized in that: the laryngeal mask 1 includes a support sheet 30 and the support sheet 30 includes a plurality of air holes 31 and a first side 33, the opening portion 11 of the laryngeal mask body 10 includes a front end 111, and the support sheet 30 is arranged at the front end 111. In this embodiment, the support sheet 30 occupies one quarter to one half of the opening area of the opening portion 11 so as to have a better bonding strength with the support member 90 to avoid the situation in which the support member 90 is separated from the support sheet 30 during the placement process of the laryngeal mask body 10. According to a specific embodiment of the present invention, the total opening area of each of the plurality of air holes 31 needs to be greater than one quarter or more than one quarter of the area of the support sheet 30 to ensure that sufficient oxygen can be provided to the patient. Here, an endotracheal tube for adults is used as an example. The endotracheal tube is directly inserted into the patient's trachea and then supplies oxygen. Generally, the diameter of the tube opening of the endotracheal tube for adults only needs to be greater than 6 mm to provide the intubated patient with sufficient oxygen to maintain life. If the ventilation cross-sectional area of the endotracheal tube with a tube opening diameter of 6 mm is calculated, it is approximately 0.2826 cm ² . The laryngeal mask is placed on the patient's throat, and the opening of the laryngeal mask covers the patient's tracheal opening to supply oxygen to the patient. According to actual measurements, the diameter of the laryngeal mask tube for adults is about 10mm. The opening 11 of the laryngeal mask is about 5.0cm long and 1.6cm wide, and is oval, with an area of about 2.5*0.8*3.14= ^6.28cm2 . The area of the support sheet 30 used in the present case is about 1.5 cm ² ~3 cm ² , and the total opening area of each of the plurality of air holes 31 needs to be greater than one quarter of the area of the support sheet 30. It can be seen that the total opening area of each of the plurality of air holes 31 is about 0.375 cm ² ~0.75 cm ² , which is sufficient to provide an intubated patient with a life-sustaining amount of oxygen. Needless to say, the support sheet 30 in the present case only occupies one quarter to one half of the opening area of the opening portion 11, and the unshielded portion of the opening portion 11 can still supply oxygen normally. Therefore, the restriction condition that the total opening area of each of the plurality of air holes 31 of the present invention needs to be greater than one quarter or more of the area of the support sheet 30 can provide sufficient oxygen to the patient using the laryngeal mask 1 of the present invention. It should be noted here that according to a specific embodiment of the present invention, the support sheet 30 can occupy at most half of the opening area of the opening portion 11.

As shown in FIG. 1A and FIG. 1B , the present invention is characterized in that: the first side 33 is the side of the support sheet 30 far from the front end 111, and the first side 33 is arc-shaped, and the central area 331 of the first side 33 is closer to the front end 111 than the two side vertices 332 of the first side 33, thereby increasing the strength of the combination of the support sheet 30 and the laryngeal mask body 10, so as to avoid the situation that the support member 90 is separated from the support sheet 30 and the front end of the support member 90 pierces the patient's throat tissue during the process of placing the laryngeal mask 1 of the present invention on the patient's throat; when the laryngeal mask 1 and the support member 90 are combined into the laryngeal mask assembly 100 of the present invention, the support portion 92 is located at the support portion 92, and the support portion 92 is located at the support portion 92. The support force of the support member 90 between the support sheet 30 and the opening 11 maintains the shape of the front end 111 of the opening 11, so that when the medical staff puts the laryngeal mask 1 into the patient's mouth, the front end 111 of the flexible opening 11 will not be deformed by force, and the problem of the laryngeal mask being unable to be placed in the patient's throat due to deformation of the front end of the laryngeal mask in the prior art will not occur. The difficulty of placing the laryngeal mask 1 is greatly reduced, and after the laryngeal mask 1 is placed, the oxygen originally blocked by the support sheet 30 can enter the patient's trachea normally through the multiple air holes 31, solving the problem of the laryngeal mask sheath and the top part blocking the gas from entering the human trachea in the prior art.

According to a specific embodiment of the present invention, as shown in FIG. 1A, FIG. 1B, FIG. 2 and FIG. 3, the support sheet 30 includes an inner side surface 32, and the inner side surface 32 and the front end 111 form a receiving space s to accommodate the front end 921 of the support portion 92. In this embodiment, the support portion 92 is in an elongated strip shape and the shape of the front end of the support portion 921 matches the front end 111 to prevent the support portion 92 from being separated from the laryngeal mask body 10 during the placement process. In addition, in order to strengthen the combination of the support member 90 and the laryngeal mask 1, the laryngeal mask 1 of the present invention further includes a fixing member 40, which is disposed at one end of the tube 20 away from the laryngeal mask body 10, so as to fix the gripping portion 91 to one side of the tube 20. In this embodiment, the fixing member 40 includes a ring portion 41 and a slot 42, wherein the ring portion 41 is sleeved on the outer edge of the tube body 20 and is far from one end of the laryngeal mask body 10, and the slot 42 and the ring portion 41 are connected to one side of the tube body 20 close to the opening 11, and when the medical staff uses the laryngeal mask assembly 100 of the present invention and wants to combine the laryngeal mask 1 with the support member 90, they can firstly connect the front end 92 of the support member to the laryngeal mask 100. 1 is placed into the accommodation space s, and then the gripping portion 91 adjacent to the fixing member 40 is inserted into the card slot 42, thus completing the assembly of the laryngeal mask assembly 100. Then, the assembled laryngeal mask assembly 100 is placed into the patient's throat, and after the laryngeal mask 1 of the present invention contacts the patient's tracheal opening, the support member 90 is separated from the laryngeal mask 1 and pulled out of the patient's throat, thus completing the placement procedure of the laryngeal mask 1 of the present invention.

Please refer to Figures 4 and 5 below, which are three-dimensional diagrams of the second embodiment and the third embodiment of the laryngeal mask assembly of the present invention.

As shown in FIG. 4 , in a second embodiment, the laryngeal mask assembly 100a of the present invention comprises a laryngeal mask 1 and a support member 90a, wherein when the laryngeal mask 1 is combined with the support member 90a, the support member 90a of the present embodiment enters the tube body 20 from one end of the tube body 20 away from the laryngeal mask body 10, and the support portion 92a is located between the support sheet 30 and the opening portion 11. As shown in FIG. 5 , in the third embodiment, the laryngeal mask assembly 100b of the present invention includes a laryngeal mask 1 and a support member 90b. The support member 90b also enters the tube body 20 from one end of the tube body 20 away from the laryngeal mask body 10. The support portion 92a is located between the support sheet 30 and the opening portion 11. The support member 90b of the third embodiment further includes a strip camera 94. As shown in FIG. 4 , the camera lens of the strip camera 94 is located at the connection between the curved portion 93b and the support portion 92b, thereby providing a better operating field of view for medical personnel.

By the cooperation between the laryngeal mask 1 of the present invention and the supporting members 90, 90a, 90b, before placing the laryngeal mask 1 of the present invention, the supporting member 90 is first combined with the laryngeal mask 1, so that the front end 111 of the laryngeal mask 1 is pushed and reinforced by the supporting members 90, 90a, 90b, so that the front end 111 of the laryngeal mask 1 of the present invention will not be squeezed and deformed, so that the medical staff can smoothly insert the laryngeal mask 1 of the present invention into the patient's tracheal opening, solving the problem that the front end of the traditional laryngeal mask is soft and resistant to the impact of the laryngeal mask. The laryngeal mask 1 of the present invention is easy to be deformed by pressure, which makes it difficult to place. In addition, the joint force between the support piece and the laryngeal mask of the prior art is insufficient, which causes the support piece to support and detach from the laryngeal mask during the placement process and stab the patient. At the same time, the laryngeal mask 1 of the present invention has multiple air holes 31 added on the support sheet 30. When the laryngeal mask 1 of the present invention is placed, the air holes 31 on the support sheet 30 can allow oxygen to pass through without being blocked by the support sheet 30 and enter the patient's trachea normally, without affecting the patient's oxygen supply.

It should be noted that the above embodiments are only given for the purpose of illustration. The scope of rights claimed by the present invention shall be subject to the scope of the patent application, and shall not be limited to the above embodiments.

1: Laryngeal mask airway

10: Laryngeal mask body

11: Opening

12: Closed section

20: Tube body

90: Support parts

91: Grip

92: Support part

921: Front end of the support part

30: Support sheet

31: Stoma

111:Front end

100: Laryngeal mask assembly

40:Fixer

41: Environmental Protection Department

42: Card slot

32: Inner side

s: Storage space

93: bend

Claims (16)

A laryngeal mask can be detachably connected to a support member, the support member includes a support portion, the laryngeal mask includes: a laryngeal mask body and a tube body, wherein the laryngeal mask body includes an opening portion, a support piece and a closing portion, the opening portion includes a front end, and one end of the tube body is connected to the closing portion, and its characteristics are: the support piece is arranged at the front end and the support piece includes a plurality of air holes; when the laryngeal mask is combined with the support member, the support member enters the tube body from one end of the tube body away from the laryngeal mask body, and the support portion is between the support piece and the opening portion. The laryngeal mask as described in claim 1, wherein the support piece includes an inner side surface, and the inner side surface and the front end form a receiving space to accommodate the support portion. The laryngeal mask as described in claim 1, wherein the support plate occupies one quarter to one half of the opening area of the opening portion. The laryngeal mask as described in claim 1, wherein the total opening area of each of the plurality of air holes is greater than one quarter or more of the area of the support plate. The laryngeal mask as described in claim 1, wherein the support plate includes a first side, the first side is the side of the support plate away from the front end, and the first side is arc-shaped. In the laryngeal mask as described in claim 5, the first side includes a central area and two vertices, wherein the central area is closer to the front end than the two vertices. As described in claim 1, the support member includes a gripping portion, wherein the laryngeal mask includes a fixing member, which is arranged at the other end of the tube body so as to fix the gripping portion to the other end of the tube body. The laryngeal mask as described in claim 7, wherein the fixing member includes a ring and a slot, wherein the ring is sleeved on the other end of the tube, the slot and the ring are connected to one side of the tube near the opening, and when the laryngeal mask is combined with the support member, the gripping portion adjacent to the fixing member is embedded in the slot. A laryngeal mask assembly comprises: a laryngeal mask, comprising a laryngeal mask body and a tube body, wherein the laryngeal mask body comprises a support piece, an opening portion and a closing portion, the opening portion comprises a front end, one end of the tube body is connected to the closing portion; and a support piece, comprising a support portion, wherein: the support piece is arranged at the front end and the support piece comprises a plurality of air holes; when the laryngeal mask and the support piece are combined, the support piece enters the tube body from one end of the tube body away from the laryngeal mask body, and the support portion is between the support piece and the opening portion. A laryngeal mask assembly as described in claim 9, wherein the support sheet includes an inner side surface, and the inner side surface and the front end form a receiving space to accommodate the support portion. The laryngeal mask assembly as described in claim 9, wherein the support sheet occupies one quarter to one half of the opening area of the opening portion. A laryngeal mask assembly as described in claim 9, wherein the total opening area of each of the plurality of air holes is greater than one quarter or more of the area of the support plate. The laryngeal mask assembly as described in claim 9, wherein the support plate includes a first side, the first side is the side of the support plate away from the front end, and the first side is arc-shaped. A laryngeal mask assembly as described in claim 9, wherein the support member includes a gripping portion, wherein the laryngeal mask includes a fixing member disposed at the other end of the tube body so as to fix the gripping portion to the other end of the tube body. The laryngeal mask assembly as described in claim 14, wherein the fixing member includes a ring and a slot, wherein the ring is sleeved on the other end of the tube body, the slot and the ring are connected to one side of the tube body near the opening, and when the laryngeal mask is combined with the support member, the gripping portion adjacent to the fixing member is embedded in the slot. As described in claim 9, the laryngeal mask assembly further comprises a strip camera and a curved portion, wherein the camera lens of the strip camera is disposed at the connection between the curved portion and the support plate.

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