CN214485263U

CN214485263U - Device for nasal cavity local anesthesia

Info

Publication number: CN214485263U
Application number: CN202022995403.8U
Authority: CN
Inventors: 牧杰; 罗励莉; 白雪娇; 阳慧
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-26
Anticipated expiration: 2030-12-14

Abstract

The utility model provides a nasal cavity local anesthesia device, which comprises a breather pipe and a drug feeding pipe, wherein the breather pipe is wrapped with a cotton layer coated with drugs, the inner wall of the breather pipe is provided with an axial limiting channel, and two ends of the limiting channel are at a certain distance from two ends of the breather pipe; the dosing tube penetrates into the vent tube from the inlet end and passes through the limiting channel, clamping blocks for preventing the dosing tube from being separated are arranged on the outer wall of the dosing tube at two ends of the limiting channel, and the distance between the two clamping blocks is greater than the length of the limiting channel. Is helpful for contracting nasal blood vessels and superficial anesthesia nasal mucosa, does not affect respiration, and is convenient for administration into pharyngeal cavity through nasal cavity.

Description

Device for nasal cavity local anesthesia

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to device is used to nasal cavity office anesthesia.

Background

Nasal intubation is one type of endotracheal intubation in which a tracheal tube is inserted through the nasal cavity into the trachea of a patient. Is easier to tolerate than patients with oral intubation, and has the advantages of long retention time, easy fixation and convenient oral nursing. Before intubation, a nasal cavity needs to be stuffed with ephedrine and dicaine cotton sheets to shrink blood vessels and nasal mucosa of the nasal cavity, local anesthetic can be sprayed into the oral cavity in the process, the operation is complex, and a device convenient for nasal administration does not exist at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a device is used to nasal cavity office anesthesia helps contracting nasal cavity blood vessel and table numb nasal cavity mucosa, does not influence breathing, and the convenience is dosed to the pharyngeal cavity through the nasal cavity.

In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme be:

a nasal cavity local anesthesia device comprises a breather pipe and a medicine feeding pipe, wherein a cotton layer coated with medicine is wrapped outside the breather pipe, an axial limiting channel is arranged on the inner wall of the breather pipe, and two ends of the limiting channel are at a certain distance from two ends of the breather pipe; the dosing tube penetrates into the vent tube from the inlet end and passes through the limiting channel, clamping blocks for preventing the dosing tube from being separated are arranged on the outer wall of the dosing tube at two ends of the limiting channel, and the distance between the two clamping blocks is greater than the length of the limiting channel.

The length of the vent pipe of the utility model is 7-9cm, and the inner diameter is 4-8 mm.

Preferably, the end of the dosing tube can extend out of the air vent tube by 2cm at most. The medicine is conveniently administered to the pharyngeal cavity through the nasal cavity, and discomfort caused by overlong medicine feeding pipe is avoided.

The inner diameter of the medicine feeding pipe of the utility model is 1-1.5 mm. The thin medicine feeding pipe is adopted, so that the medicine amount is convenient to control, the medicine injection range is enlarged, and meanwhile, enough air is left for the air vent pipe to be used for intubation.

The entrance point outer wall circumference of breather pipe is equipped with the boss, can be used to block in nose import department, avoids the device whole to get into the nasal cavity.

The cotton layer of the utility model is a gelatin sponge layer, which has strong adsorptivity and good hemostatic effect.

The inner wall of spacing passageway is provided with the elastic layer, can suitably compress tightly with the pencil, avoids adding the pencil and slides in the breather pipe.

The utility model has the advantages that:

1. the utility model discloses scribble the cotton layer of medicine outside the breather pipe, help contracting nasal cavity blood vessel and table numb nasal cavity mucosa, the breather pipe does not influence breathing for hollow structure. The medicine feeding tube which can be drawn is arranged in the breather tube, so that the medicine can be conveniently fed into the pharyngeal cavity through the nasal cavity.

2. After the local anesthesia is completed, the patient has good tolerance to the gastric tube, the gastric tube can be inserted into the airway tube, so that the gastric tube enters the pharyngeal cavity along the nasal cavity and then goes down to the esophagus, and then the device is taken out from the nasal cavity to complete the intubation of the gastric tube.

3. The inner diameter of the medicine feeding pipe is 1-1.5mm, so that the medicine amount is convenient to control, the medicine injection range is enlarged, and meanwhile, enough air is left for the air vent pipe to be used for intubation.

Drawings

Fig. 1 is an axial sectional view of the device for nasal local anesthesia of the present invention.

FIG. 2 is an axial cross-sectional view of the nasal cavity local anesthesia device of example 4.

FIG. 3 is a radial cross-sectional view of the nasal cavity local anesthesia device of example 4.

Labeled as: 1. breather pipe, 2, dosing pipe, 3, cotton layer, 4, medicine, 5, spacing passageway, 6, fixture block, 7, joint, 8, boss, 9, elastic layer.

Detailed Description

In order to illustrate the technical solution of the present invention more clearly and in detail, the present invention is further described below by referring to the following embodiments. The following examples are only for the purpose of specifically illustrating the method of implementing the present invention, and do not limit the scope of the present invention.

Example 1

As shown in fig. 1, a device for nasal cavity local anesthesia comprises a breather pipe 1 and a medicine feeding pipe 2, wherein a cotton layer 3 coated with medicine 4 is wrapped outside the breather pipe 1, an axial limiting channel 5 is arranged on the inner wall of the breather pipe 1, and two ends of the limiting channel 5 are at a certain distance from two ends of the breather pipe 1; the dosing tube 2 penetrates into the vent tube 1 from the inlet end and passes through the limiting channel 5, the outer wall of the dosing tube 2 is provided with clamping blocks 6 which are used for preventing the dosing tube from being separated from the limiting channel 5 at two ends of the limiting channel 5, and the distance between the two clamping blocks 6 is greater than the length of the limiting channel 5.

Before the nasal cavity is inserted into a nasal cavity, the device is inserted into the nasal cavity, the external cotton layer 4 is coated with medicines for contracting blood vessels of the nasal cavity and surface anesthesia nasal cavity mucosa to increase the space in the nasal cavity, and meanwhile, the ventilation pipe 1 is of a hollow structure and does not influence breathing. Connect the syringe that is equipped with the local anesthetic through joint 7 that adds pencil 2, will add pencil 2 and impel to the nasal cavity, make and add pencil 2 and prolong spacing passageway 5 and stretch out breather pipe 1 and go deep into the nasal cavity, to injecting the local anesthetic in adding pencil 2, the medicine is along adding pencil 2 entering nasal cavity depths, through the nasal cavity to the pharyngeal intracavity drug delivery.

After having done the local anesthesia, the patient is fine to the tolerance of stomach tube, and the space in the accessible breather pipe 1 inserts the stomach tube into breather pipe 1, makes the stomach tube prolong the nasal cavity and gets into the pharyngeal cavity, descends the esophagus again, then can withdraw from breather pipe 1, takes out the device from the nasal cavity, accomplishes the intubate of stomach tube.

Example 2

This example is based on example 1:

the length of the vent pipe 1 is 7cm, and the inner diameter is 4 mm.

The tail end of the dosing pipe 2 can extend out of the vent pipe by 12 cm at most.

Example 3

This example is based on example 1:

the length of the vent pipe 1 is 9cm, and the inner diameter is 8 mm.

The inner diameter of the dosing tube 2 is 1.5 mm.

Example 4

This example is based on example 1:

the length of the vent pipe 1 is 8cm, and the inner diameter is 7 mm.

The inner diameter of the dosing tube 2 is 1 mm.

As shown in fig. 2, the inlet end outer wall of the ventilation pipe 1 is circumferentially provided with a boss 8.

As shown in fig. 3, the inner wall of the limiting channel 5 is provided with an elastic layer 9.

The elastic layer can be rubber or elastic cotton.

Example 5

This example is based on example 1:

the length of the vent pipe 1 is 8cm, and the inner diameter is 6 mm.

The inner diameter of the dosing tube 2 is 1.2 mm.

The cotton layer 3 is a gelatin sponge layer.

The connection method not illustrated in the present invention is a conventional connection method such as bonding and integral forming.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A device for nasal local anesthesia, characterized in that: the medicine feeding device comprises a breather pipe and a medicine feeding pipe, wherein a cotton layer coated with medicine is wrapped outside the breather pipe, an axial limiting channel is arranged on the inner wall of the breather pipe, and two ends of the limiting channel are at a certain distance from two ends of the breather pipe; the dosing tube penetrates into the vent tube from the inlet end and passes through the limiting channel, clamping blocks for preventing the dosing tube from being separated are arranged on the outer wall of the dosing tube at two ends of the limiting channel, and the distance between the two clamping blocks is greater than the length of the limiting channel.

2. The device for nasal local anesthesia of claim 1, wherein: the length of the vent pipe is 7-9cm, and the inner diameter of the vent pipe is 4-8 mm.

3. The device for nasal local anesthesia of claim 2, wherein: the tail end of the dosing pipe can extend out of the vent pipe by 2cm at most.

4. The device for nasal local anesthesia of claim 1, wherein: the inner diameter of the medicine feeding pipe is 1-1.5 mm.

5. The device for nasal local anesthesia of claim 1, wherein: the inlet end outer wall of the breather pipe is circumferentially provided with a boss.

6. The device for nasal local anesthesia of claim 1, wherein: the cotton layer is a gelatin sponge layer.

7. The device for nasal local anesthesia of claim 1, wherein: and an elastic layer is arranged on the inner wall of the limiting channel.