Auxiliary device for nasobiliary drainage tube replacement

Abstract

The utility model provides an auxiliary device for nasobiliary drainage tube replacement. The auxiliary device comprises a tongue depressor and a tightening piece. The tongue depressor is made of transparent plastic; the first end of the tongue depressor is bent downwards so as to be inserted into the throat position at the rear part of the tongue; a first insertion hole and a second insertion hole are formed in the tongue depressor; the first insertion hole and the second insertion hole extend from the second end of the tongue depressor to the first end of the tongue depressor; the first end of the tongue depressor forms an arc-shaped concave part; the tightening piece comprises a tightening wire, and the tightening wire is composed of an elastic metal wire or a nylon wire; the tightening wire is formed into a U shape comprising a first insertion part, a second insertion part and an arc-shaped connecting part; the first insertion part and the second insertion part can be inserted into the first insertion hole and the second insertion hole in a sliding manner; the arc-shaped connecting part is exposed out of the first end of the tongue depressor and corresponds to the arc-shaped concave part; the second end of the tightening wire is exposed out of the second end of the tongue depressor; and the second ends of the first insertion part and the second insertion part are integrally connected together through the operation panel.

Description

Technical Field

[0001] The present application relates to a medical device, and in particular to an auxiliary device for nasobiliary drainage tube replacement. Background Art

[0002] The insertion process of the nasobiliary drainage tube is relatively complicated. The lower end of the nasobiliary drainage tube is inserted into the common bile duct through the endoscopic biopsy channel, and the upper end extends from the nasal cavity to the outside. The conventional practice is to first insert the lower end of the nasobiliary drainage tube into the common bile duct through the mouth; then, insert the suction tube from the nasal cavity into the patient's mouth, connect the upper end of the nasobiliary drainage tube with the lower end of the suction tube outside the patient's body, and then guide the upper end of the nasobiliary drainage tube out of the nasal cavity through the suction tube. This process is also called the nasobiliary drainage tube replacement process or replacement surgery.

[0003] CN 219022516 U proposes a device for assisting the extraction of a medical nasobiliary drainage tube, which has a complex structure and operation and has many parts. If the device falls off during use, it is very easy to fall into the throat or airway and cause a medical accident. Utility Model Content

[0004] In view of the above problems, the present application aims to propose an auxiliary device for nasobiliary drainage tube replacement, which is easy to operate, compact and simple in structure, has fewer parts, and is not prone to parts falling into the throat or airway.

[0005] The auxiliary device for nasobiliary drainage tube replacement of the present application comprises: a tongue depressor and a tightening member;

[0006] The tongue depressor is made of transparent plastic; the first end of the tongue depressor is bent downward to be inserted into the throat position at the back of the tongue; a first insertion hole and a second insertion hole are formed on the tongue depressor; the first insertion hole and the second insertion hole extend from the second end of the tongue depressor toward the first end; and a circular arc-shaped recessed portion is formed at the first end of the tongue depressor;

[0007] The tightening member comprises a tightening wire, which is made of an elastic metal wire or nylon wire; the tightening wire is formed into a "∪" shape including a first insertion portion, a second insertion portion and an arc-shaped connecting portion; the first insertion portion can be slidably inserted into the first insertion hole; the second insertion portion can be slidably inserted into the second insertion hole; the arc-shaped connecting portion is exposed outside the first end of the tongue depressor, corresponding to the arc-shaped recessed portion; the second ends of the first insertion portion and the second insertion portion are exposed outside the second end of the tongue depressor; the second ends of the first insertion portion and the second insertion portion are integrally connected together through an operating plate;

[0008] When the tightening piece is pulled out from the first insertion hole and the second insertion hole through the operating panel, the arc-shaped connecting portion of the tightening piece moves toward the direction of the arc-shaped recessed portion, thereby clamping and fixing the lower end of the suction tube inserted into the subject's throat through the nasal cavity, so as to facilitate the lower end of the suction tube to be pulled out of the subject's throat to the outside of the oral cavity.

[0009] Preferably, the arc-shaped connecting portion of the tightening member is bent upward at the connecting position with the first inserting portion and the second inserting portion.

[0010] Preferably, a threaded hole is formed on the operating plate of the tightening member, and a bolt is installed in the threaded hole; the end of the bolt abuts against the second end of the tongue depressor.

[0011] Preferably, the lower side of the tongue depressor is integrally formed with an LED lamp bead, a push switch, and a battery compartment; the LED lamp bead is close to the first end of the tongue depressor; the push switch and the battery compartment are installed at a position close to the second end of the tongue depressor; the battery compartment contains a button battery; the button battery, the push switch, and the LED lamp bead are connected in series to form a power supply circuit.

[0012] The auxiliary device for nasobiliary drainage tube replacement of the present application has a simple structure and generally includes two components, namely a tongue depressor and a tightening piece. There will be no parts falling off and falling into the throat or airway. The auxiliary device for nasobiliary drainage tube replacement of the present application, the LED lamp beads integrally formed under the tongue depressor can provide lighting in the oral cavity, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the auxiliary device for nasobiliary drainage tube replacement in the present application from a first perspective;

[0014] Figure 2 A schematic diagram of the stereoscopic structure of the auxiliary device for nasobiliary drainage tube replacement in the present application from a second viewing angle;

[0015] Figure 3 A schematic diagram of the three-dimensional structure of a tongue depressor of an auxiliary device for nasobiliary drainage tube replacement in the present application;

[0016] Figure 4 A schematic diagram of the top view of the tongue depressor of the auxiliary device for nasobiliary drainage tube replacement of the present application;

[0017] Figure 5 This is a bottom-up structural schematic diagram of a tongue depressor of an auxiliary device for nasobiliary drainage tube replacement according to the present application;

[0018] Figure 6 A left-side structural schematic diagram of a tongue depressor of an auxiliary device for nasobiliary drainage tube replacement according to the present application;

[0019] Figure 7A schematic diagram of the structure of a tongue depressor of the auxiliary device for nasobiliary drainage tube replacement according to the present application from the right side;

[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the tightening member of the auxiliary device for nasobiliary drainage tube replacement of the present application;

[0021] Fig. 9 This is a schematic diagram of the main structure of the tightening member of the auxiliary device for nasobiliary drainage tube replacement in the present application. DETAILED DESCRIPTION

[0022] Below, the auxiliary device for nasobiliary drainage tube replacement of the present application is described in detail with reference to the accompanying drawings.

[0023] The auxiliary device for nasobiliary drainage tube replacement of the present application includes: a tongue depressor 10 and a tightening member 20.

[0024] The tongue depressor 10 is made of transparent plastic. The first end of the tongue depressor 10 is bent downward to be inserted into the throat position at the back of the tongue; the tongue depressor 10 is formed with a first insertion hole 12a and a second insertion hole 12b; the first insertion hole 12a and the second insertion hole 12b extend from the second end of the tongue depressor 10 toward the first end; the first end of the tongue depressor 10 forms a circular arc-shaped recessed portion 11. The surface of the circular arc-shaped recessed portion 11 can be formed to be relatively rough so as to have greater friction when in contact with the lower end of the sputum suction tube.

[0025] The tightening member 20 includes a tightening wire, which is composed of an elastic metal wire or nylon wire; the tightening wire is formed into a "∪" shape including a first insertion part, a second insertion part and an arc-shaped connecting part 21; the first insertion part can be slidably inserted into the first plug hole 12a; the second insertion part can be slidably inserted into the second plug hole 12b; the arc-shaped connecting part 21 is exposed outside the first end of the tongue depressor 10, corresponding to the arc-shaped recessed part 11; the second ends of the first insertion part and the second insertion part are exposed outside the second end of the tongue depressor 10; the second ends of the first insertion part and the second insertion part are integrally connected together through the operating plate 22.

[0026] When the tightening piece 20 is pulled out from the first insertion hole and the second insertion hole through the operating panel 22, the arc-shaped connecting portion 21 of the tightening piece 20 moves toward the arc-shaped recessed portion 11, thereby clamping and fixing the lower end of the suction tube inserted into the subject's throat through the nasal cavity, so as to facilitate the lower end of the suction tube to be pulled out of the subject's throat to the outside of the oral cavity.

[0027] In another embodiment, the arc-shaped connecting portion 21 of the tightening member 20 is bent upward at the connecting position with the first inserting portion and the second inserting portion, such as Fig. 9As shown, the lower end of the sputum suction tube is substantially perpendicular to the plane where the arc-shaped connecting portion 21 is located, so that it is easy to be inserted between the arc-shaped connecting portion 21 and the arc-shaped recessed portion 11 .

[0028] In another embodiment, a threaded hole is formed on the operating plate 22 of the tightening member 20, and a bolt 23 is installed in the threaded hole; the end of the bolt 23 abuts against the second end of the tongue depressor 10. In this way, the arc-shaped connecting portion 21 can be tightened by means of the bolt 23.

[0029] In another embodiment, the lower side of the tongue depressor 10 is integrally formed with an LED lamp bead 13, a push switch 14, and a battery compartment 15; the LED lamp bead 13 is close to the first end of the tongue depressor 10; the push switch 14 and the battery compartment 15 are installed at a position close to the second end of the tongue depressor 10; the battery compartment 15 contains a button battery; the button battery, the push switch 14, and the LED lamp bead 13 are connected in series to form a power supply circuit. When in use, the LED lamp bead 13 is located in the subject's oral cavity, and the push switch 14 and the battery compartment 15 are located outside the subject's oral cavity.

[0030] When in use, insert the first end of the tongue depressor into the patient's oral cavity to reach the throat behind the tongue; then insert the lower end of the suction tube from the subject's nasal cavity to the throat position, and insert it between the arc-shaped connecting portion and the arc-shaped recessed portion; at this time, pull the operating plate so that the arc-shaped connecting portion and the arc-shaped recessed portion clamp and fix the lower end of the suction tube, and rotate the bolt to maintain the clamping state. Then one hand pushes the lower end of the suction tube further into the oral cavity, and the other hand pulls the lower end of the suction tube out of the oral cavity through the auxiliary device of the present application; the lower end of the suction tube that has been pulled out is fixed and connected with the upper end of the nasobiliary drainage tube that has been inserted into the common bile duct and exposed outside the oral cavity, that is, the upper end of the nasobiliary drainage tube is inserted into the lower end of the suction tube for fixing; finally, pull the upper end of the suction tube to lead the upper end of the nasobiliary drainage tube out of the subject's nasal cavity, completing the entire replacement process.

Claims

1. An auxiliary device for nasobiliary drainage tube replacement, characterized in that include: Tongue depressors, tightening pieces; The tongue depressor is made of transparent plastic; the first end of the tongue depressor is bent downward to be inserted into the throat position behind the tongue; A first plug hole and a second plug hole are formed on the tongue depressor; the first plug hole and the second plug hole extend from the second end of the tongue depressor toward the first end; and a circular arc-shaped recessed portion is formed at the first end of the tongue depressor; The tightening member comprises a tightening wire, which is made of an elastic metal wire or nylon wire; the tightening wire is formed into a "∪" shape including a first insertion portion, a second insertion portion and an arc-shaped connecting portion; the first insertion portion can be slidably inserted into the first insertion hole; the second insertion portion can be slidably inserted into the second insertion hole; the arc-shaped connecting portion is exposed outside the first end of the tongue depressor, corresponding to the arc-shaped recessed portion; the second ends of the first insertion portion and the second insertion portion are exposed outside the second end of the tongue depressor; the second ends of the first insertion portion and the second insertion portion are integrally connected together through an operating plate; When the tightening piece is pulled out from the first insertion hole and the second insertion hole through the operating panel, the arc-shaped connecting portion of the tightening piece moves toward the direction of the arc-shaped recessed portion, thereby clamping and fixing the lower end of the suction tube inserted into the subject's throat through the nasal cavity, so as to facilitate the lower end of the suction tube to be pulled out of the subject's throat to the outside of the oral cavity.

2. The auxiliary device for nasobiliary drainage tube replacement according to claim 1, characterized in that: The connection positions of the arc-shaped connecting portion of the tightening member and the first inserting portion and the second inserting portion form an upward bend.

3. The auxiliary device for nasobiliary drainage tube replacement according to claim 1, characterized in that: A threaded hole is formed on the operating plate of the tightening member, and a bolt is installed in the threaded hole; the end of the bolt abuts against the second end of the tongue depressor.

4. The auxiliary device for nasobiliary drainage tube replacement according to claim 1, characterized in that: The lower side of the tongue depressor is integrally formed with an LED lamp bead, a push switch, and a battery compartment; the LED lamp bead is close to the first end of the tongue depressor; the push switch and the battery compartment are installed at a position close to the second end of the tongue depressor; a button battery is accommodated in the battery compartment; the button battery, the push switch, and the LED lamp bead are connected in series to form a power supply circuit.

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