Glottis cover catheter with stomach tube channel

Abstract

The utility model discloses a glottis cover catheter with a stomach tube channel. The glottis cover catheter comprises a cover body and a tube body connected to the cover body. A concave cavity is formed in the inner side of the cover body, an air duct is arranged in the tube body, and the air duct is provided with a channel opening communicated to the concave cavity; the cover body comprises a body part and a soft medical elastic material layer located on the body part, and the soft medical elastic material layer is located at the edge of an opening of the cavity. At least one side of the far end of the cover body is provided with a far-end opening, the tube body is provided with a stomach tube channel communicated with the far-end opening, and the stomach tube channel is communicated with the far-end opening. By the adoption of the technical scheme, the intubation tube enters the esophagus through the piriform nest during stomach tube intubation operation.

Description

Technical Field

[0001] The utility model relates to a glottic mask catheter with a stomach tube channel, belonging to the technical field of medical equipment. Background Art

[0002] Laryngeal Mask (LM) is a medical device used to maintain the patient's airway and is usually used during anesthesia and surgery. Similar to a mask that is buckled on the outside of the mouth and nose to assist breathing, the laryngeal mask is inserted from the patient's mouth to the throat and covered on the outside of the throat to assist breathing. Because it is a type of supraglottic airway, it is also called a glottis mask (GM). Figure 1 As shown, the deep pit formed by the mucosal depression between the inner surface of the thyroid cartilage and the cricoid cartilage on both sides of the human throat opening 91 is called the piriform fossa 92. To be precise, the piriform fossa 92 is not a "pit" but an irregular gap. When eating, the epiglottis 94 hangs down to cover the throat opening 91, and food or water falls on the epiglottis 94 and slides to both sides into the piriform fossa 92, and then enters the esophagus downward through the piriform fossa. However, the laryngeal mask in the prior art is usually provided with a distal opening in the middle of the distal end of the mask body, and the distal opening is connected to the gastric tube channel provided in the mask body. When the gastric tube is inserted, the tube extends outward from the distal opening and is inserted downward from the gap 93 in the posterior region of the cricoid cartilage into the esophagus, which is easy to cause damage to the connective tissue in the gap in the posterior region of the cricoid cartilage. Utility Model Content

[0003] Therefore, the purpose of the utility model is to overcome the defects in the above-mentioned prior art and provide a glottic mask catheter with a gastric tube channel, through which the gastric tube can enter the esophagus downward through the pyriform sinus after passing through the gastric tube channel.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a glottic mask catheter with a gastric tube channel, comprising a mask body and a tube body connected to the mask body; a concave cavity is formed inside the mask body, an airway is arranged in the tube body, and the airway has a channel opening connected to the concave cavity; the mask body comprises a main body and a soft medical elastic material layer located on the main body, and the soft medical elastic material layer is located at the opening edge of the concave cavity; a distal opening is provided on at least one side of the distal end of the mask body, and a gastric tube channel connected to the distal opening is provided on the tube body, and the gastric tube channel is connected to the distal opening.

[0005] On the cover body, the thickness of the two side portions at the distal end of the cover body is greater than the thickness of the middle portion at the distal end of the cover body.

[0006] The two side portions of the far end of the cover body protrude from the middle portion of the far end of the cover body toward the inner side of the cover body.

[0007] Distal openings are arranged on both sides of the distal end of the cover body, and two stomach tube channels are symmetrically distributed on both sides of the tube body.

[0008] In the cross section of the tube body, the center of the airway and the centers of the two stomach tube channels are distributed in an isosceles triangle.

[0009] In the longitudinal section of the glottic mask catheter, the portion of the mask body located from the distal end to the channel opening is an extension of the lower wall of the tube body when gas is introduced into the airway.

[0010] An epiglottic support is arranged inside the cover body.

[0011] A limiting plate portion is arranged above the epiglottic support, and a containing cavity with an opening is formed between the limiting plate portion and the epiglottic support.

[0012] The end of the limiting plate portion extends toward the distal direction and protrudes from the end of the epiglottic support.

[0013] The tube body, the main body and the soft medical elastic material layer are integrally cast and formed.

[0014] By adopting the above technical scheme, the glottic mask catheter with a gastric tube channel of the utility model has a distal opening connected to the gastric tube channel on the side of the distal end of the mask body, rather than setting the distal opening in the middle of the distal end of the mask body. Therefore, when the gastric tube is intubated, the gastric tube is more likely to enter the piriformis sinuses on both sides of the larynx and enter the esophagus downward through the piriformis sinuses, thereby bypassing the gap in the posterior region of the cricoid cartilage and avoiding damage to the connective tissue in this area. At the same time, entering the esophagus through the piriformis sinus also makes it easier to insert the gastric tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the human larynx structure.

[0016] Figure 2 The three-dimensional Figure 1 .

[0017] Figure 3 The three-dimensional Figure 2 .

[0018] Figure 4 It is a side view of the utility model.

[0019] Figure 5 It is a top view of the utility model.

[0020] Figure 6 It is a schematic longitudinal section diagram of the utility model.

[0021] Figure 7 It is a schematic longitudinal section diagram of the gastric tube passage portion in the utility model.

[0022] Figure 8 It is an exploded schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through the accompanying drawings and specific implementation methods.

[0024] like Figure 2-8 As shown, this embodiment provides a glottic mask catheter with a gastric tube passage, comprising a mask body 1 and a tube body 2 connected to the mask body 1. A concave cavity 100 is formed inside the mask body 1, and an airway 21 is arranged inside the tube body 2, and a channel opening 211 of the airway 21 is connected to the concave cavity 100.

[0025] A distal opening 11 is provided at the side of the distal end of the mask body 1, and a gastric tube channel 22 connected to the distal opening 11 is provided on the tube body 2, and the gastric tube channel 22 is connected to the distal opening 11. In this embodiment, the distal opening 11 is provided on both sides of the distal end 10 of the mask body, and the two gastric tube channels 22 are symmetrically distributed on both sides of the tube body 2, and the center of the airway 21 and the center of the two gastric tube channels 22 are distributed in an isosceles triangle.

[0026] Compared with the laryngeal mask in the prior art, the thickness of the middle part of the mask body distal end 10 can be reduced because the distal opening 11 is offset to the side. In this embodiment, the thickness of the middle part 101 of the mask body distal end is set to be smaller than the thickness of the two side parts 102 of the mask body distal end, and the two side parts 102 of the mask body distal end protrude from the middle part 101 of the mask body distal end toward the inner side of the mask body 1. In addition, the longitudinal cross-sectional structure of the glottic mask catheter can be changed so that the airflow can be blown directly toward the direction of the mask body distal end 10, such as Figure 6 As shown, in the longitudinal section of the glottic mask catheter, the portion of the mask body 1 located from the distal end 10 of the mask body to the channel opening 211 is an extension section A of the lower wall of the tube body 2, and there is no protrusion on the extension section A that blocks the airflow, so that when the mask body 1 is covered on the outside of the patient's larynx, the channel opening 211 can face the glottis. At this time, oxygen is introduced into the airway 21, and the airflow can flow out of the channel opening 211 and blow directly toward the glottis without obstruction.

[0027] An epiglottic support 12 is arranged on the inner side of the mask body 1, and a limiting plate portion 13 is arranged above the epiglottic support 12, and an accommodating cavity 14 with an opening is formed between the limiting plate portion 13 and the epiglottic support 12. When the mask body 1 is covered on the throat, the epiglottis enters the accommodating cavity 14 and is confined in the accommodating cavity 14, which is beneficial to the limitation of the epiglottis. At the same time, the end of the limiting plate portion 13 extends toward the distal direction and protrudes from the end of the epiglottic support 12, so that the limiting plate portion 13 can reach the epiglottic valley and be clamped and limited, forming a stable insertion structure, effectively preventing the mask body 1 from shifting during the surgical operation; in addition, during the insertion operation of the mask body 1 into the patient's throat, the limiting plate portion 13 will enter the epiglottic valley and stimulate the epiglottic hyoid ligament, so that the epiglottis is opened and maintained.

[0028] like Figure 8 As shown, the cover body 1 includes a main body 1a and a soft medical elastic material layer 1b located on the main body 1a. The soft medical elastic material layer 1b can be made of medical silicone or TPE (Thermoplastic Elastomer) and is located at the opening edge of the cavity 100. The tube body 2, the main body 1a and the soft medical elastic material layer 1b can be an integrally cast structure, and the airway 21 and the gastric tube channel 22 in the tube body 2 are formed inside the tube body 2 during casting.

[0029] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention of the utility model.

Claims

1. A glottic mask catheter with a gastric tube passage, characterized in that: It comprises a cover body and a tube body connected to the cover body; a concave cavity is formed inside the cover body, an airway is arranged inside the tube body, and the airway has a passage opening connected to the concave cavity; the cover body comprises a main body and a soft medical elastic material layer located on the main body, and the soft medical elastic material layer is located at the opening edge of the concave cavity; a distal opening is arranged on at least one side of the distal end of the cover body, a gastric tube channel connected to the distal opening is arranged on the tube body, and the gastric tube channel is connected to the distal opening.

2. The glottic mask catheter with a gastric tube passage according to claim 1, characterized in that: On the cover body, the thickness of the two side portions at the distal end of the cover body is greater than the thickness of the middle portion at the distal end of the cover body.

3. The glottic mask catheter with a gastric tube passage according to claim 2, characterized in that: The two side portions of the far end of the cover body protrude from the middle portion of the far end of the cover body toward the inner side of the cover body.

4. The glottic mask catheter with a gastric tube passage according to claim 1, characterized in that: Distal openings are arranged on both sides of the distal end of the cover body, and two stomach tube channels are symmetrically distributed on both sides of the tube body.

5. The glottic mask catheter with a gastric tube passage according to claim 4, characterized in that: In the cross section of the tube body, the center of the airway and the centers of the two stomach tube channels are distributed in an isosceles triangle.

6. The glottic mask catheter with a gastric tube passage according to any one of claims 1 to 5, characterized in that: In the longitudinal section of the glottic mask catheter, the portion of the mask body located from the distal end to the channel opening is an extension of the lower wall of the tube body.

7. The glottic mask catheter with a gastric tube passage according to any one of claims 1 to 5, characterized in that: An epiglottic support is arranged inside the cover body.

8. The glottic mask catheter with a gastric tube passage according to claim 7, characterized in that: A limiting plate portion is arranged above the epiglottic support, and a containing cavity with an opening is formed between the limiting plate portion and the epiglottic support.

9. The glottic mask catheter with a gastric tube passage according to claim 8, characterized in that: The end of the limiting plate portion extends toward the distal direction and protrudes from the end of the epiglottic support.

10. The glottic mask catheter with a gastric tube channel according to any one of claims 1 to 5, characterized in that: The tube body, the main body and the soft medical elastic material layer are integrally cast and formed.

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