CN219022516U - Device for assisting in guiding out medical nasobiliary drainage tube - Google Patents

Abstract

The utility model relates to a device for assisting medical nose courage drainage tube is derived, including the nose pipe and ingest the piece, nose pipe one end is provided with the magnetic ball, the one end that the nose pipe was provided with the magnetic ball is used for stretching into the pharyngeal by the nasal cavity, ingest the piece including pressing tongue spare and guide, the guide is including guide pipe and magnetism suction rod, guide pipe connection is in pressing the tongue spare, the magnetism suction rod has stiff end and magnetism suction end, the stiff end of magnetism suction rod extends into the guide pipe and keeps away from the one end of pressing the tongue spare, the magnetism is inhaled the arc of seting up the indent on the end and is inhaled the position, the arc is inhaled the position and is used for laminating with the surface of magnetic ball. Through setting up the concave arc and inhale the position on the end is inhaled to magnetism, the arc is inhaled the surface that can laminate the magnetic ball, realizes that magnetism is inhaled the face and is contacted with the face of pole and magnetic ball, has increased the area of contact that magnetism was inhaled pole and magnetic ball, has strengthened the steadiness that magnetism was inhaled pole and magnetic ball and is connected, has improved the efficiency of supplementary nose courage drainage tube transnasal derivation.

Description

Device for assisting in guiding out medical nasobiliary drainage tube

Technical Field

The application relates to the field of medical instruments, in particular to a device for assisting in guiding out a medical nasobiliary drainage tube.

Background

The Endoscopic Nasal Biliary Drainage (ENBD) is a biliary decompression drainage method with wide application, and is mainly used for endoscopic treatment of biliary obstruction, jaundice fading, calculus, cholangitis, biliary leakage, cholangitis and the like, when the nasal bile duct is placed in place, the endoscopic is withdrawn, the nasal biliary drainage tube is firstly led out of the body from the oral cavity, and the nasal biliary drainage tube is led out of the nasal cavity through an oral-nasal conversion process.

The conventional method is to insert a nasal catheter into the nose, then the operator inserts his fingers into the oral cavity to the back pharynx, grasps the front end of the nasal catheter and pulls it out of the oral cavity, connects the nasal catheter with a nasal biliary drainage tube, and then leads out the nasal bile duct from the nostril through the guidance of the nasal catheter. During operation, when the operator's fingers reach the throat, the patient often has a strong discomfort and may uncontrollably bite the operator's hands.

In the related art, a nasal catheter is taken out by an ingestion rod instead of an operator, a contractible lasso is arranged on the ingestion rod, after one end of the ingestion rod, which is provided with the lasso, extends into the pharyngeal portion of a patient, the nasal catheter is inserted into the pharyngeal portion from the nasal cavity of the patient, and then enters the lasso of the ingestion rod, at the moment, the lasso is contracted, the nasal catheter is taken out while the ingestion rod is taken out, and the nasal catheter is connected with a nasal biliary drainage tube, so that the nasal biliary drainage tube is led out from the nasal cavity. Although the technique can avoid the operator to take out the nasal catheter by hand, the pharyngeal portion is in a moist environment, when the lasso end of the ingestion rod enters the pharyngeal portion, the situation that the nasal catheter cannot be smoothly opened possibly occurs after the lasso end is wrapped by saliva, and the nasal catheter cannot be led out of the pharyngeal portion, at the moment, the lasso needs to be repeatedly opened and contracted for many times to smoothly open, the pharyngeal portion is in a high sensitive position, and foreign matters exist in the pharyngeal portion of a patient for a long time, so that the patient can generate strong discomfort.

In the related art, in order to improve the efficiency of the auxiliary nasal biliary drainage tube for nasal guidance, a metal piece is arranged on a nasal catheter, and a magnetic piece is arranged at one end of an ingestion rod extending into the pharynx. When the nasal catheter is used, one end of the nasal catheter, which is provided with a metal piece, extends into the pharynx from the nasal cavity, the ingestion rod extends into the pharynx from the oral cavity, the magnetic attraction piece can adsorb the metal piece and then lead out the nasal catheter from the oral cavity, then the nasal catheter is connected with the nasal catheter, and the nasal catheter is pulled from the nasal cavity so as to lead out the nasal catheter through the nasal cavity. The magnetic attraction piece arranged in the technology can adsorb the metal piece and lead out the nasal catheter from the oral cavity, but the magnetic attraction piece and the metal piece are in dotted line contact or line contact, the condition of the junction of the pharyngeal portion and the oral cavity is complex, and the magnetic attraction piece and the metal piece are easy to separate in the lead-out process, so that the lead-out fails, and the nasal catheter can be smoothly led out from the oral cavity only by repeated operation.

Disclosure of Invention

In order to improve the efficiency of assisting nasal biliary drainage tube transnasal delivery and reduce discomfort of a patient, the application provides a device for assisting medical nasal biliary drainage tube delivery.

The device for assisting in guiding out the medical nasobiliary drainage tube adopts the following technical scheme:

this a device for assisting medical nose courage drainage tube is derived is including the nose pipe and ingests the piece, nose pipe one end is provided with the magnetic ball, the one end that the nose pipe was provided with the magnetic ball is used for stretching into the pharyngeal by the nasal cavity, it is including pressing tongue spare and guide to ingest the piece, the guide is including guide pipe and magnetism suction rod, guide pipe connects in pressing the tongue spare, magnetism suction rod has stiff end and magnetism to inhale the end, magnetism suction rod's stiff end extends into the guide pipe is kept away from the one end of pressing the tongue spare, magnetism is inhaled the last arc position of inhaling of indent of end and is seted up, the arc position of inhaling be used for with the laminating of the surface of magnetic ball.

By adopting the technical scheme, the operator stretches one end of the nasal catheter provided with the magnetic ball from the nasal cavity to the pharyngeal portion, the operator holds the intake piece, one end of the intake piece provided with the guide piece stretches into the pharyngeal portion of the patient from the oral cavity, and the tongue pressing piece part is placed above the tongue of the patient, so that the oral cavity of the patient is kept in an open state. After the guide piece is sent into the pharyngeal portion of a patient, the magnetic suction end of the magnetic suction rod adsorbs the magnetic ball of the nasal catheter, if the magnetic ball is not adsorbed on the arc suction position, the magnetic suction rod drives the nasal catheter to move from the pharyngeal portion of the patient to the oral cavity of the patient, because a channel at the joint of the pharyngeal portion and the oral cavity is narrow and complex, the magnetic ball can slide on the magnetic suction end, and in the sliding process, the magnetic ball enters the arc suction position along the curved side wall of the arc suction position so as to realize the surface-to-surface contact between the magnetic ball and the magnetic suction rod; if the magnetic ball is just absorbed on the concave arc suction position on the magnetic suction end, the arc suction position can be attached to the outer surface of the magnetic ball, so that the surface-to-surface contact of the magnetic suction rod and the magnetic ball is realized, the contact area of the magnetic suction rod and the magnetic ball is increased, and the connection stability of the magnetic suction rod and the magnetic ball is enhanced.

Optionally, the guide tube is kept away from the inner wall of the one end of tongue depressor is followed the circumference internal protrusion of guide tube has the stopper, the stopper encloses to be formed with spacing hole, the biggest external diameter of stiff end is greater than the internal diameter of spacing hole, the biggest external diameter of magnetism is inhaled the end and is equal to the internal diameter of spacing hole, magnetism inhale the end pass spacing hole set up in outside the pipe of guide tube.

Through adopting above-mentioned technical scheme, the stopper encloses the spacing hole that closes and form and can restrict magnetism and inhale the piece removal, has avoided magnetism to inhale the piece in the use and has appeared the condition that drops.

Optionally, a hemispherical groove matched with the radian of the outer surface of the magnetic ball is formed on the magnetic suction end, and the hemispherical groove is formed with the arc suction position.

Through adopting above-mentioned technical scheme, the inner wall radian and the degree of depth in hemisphere groove and the surface looks adaptation of magnetic sphere, after magnetic sphere and hemisphere groove contact, the surface of magnetic sphere can laminate with the inner wall in hemisphere groove, at the nose pipe extraction process, even if the magnetic sphere has taken place to slide, because the surface that the surface of magnetic sphere and the inner wall in hemisphere groove is inhaled the magnetism of face and is connected and the inner wall in hemisphere groove also has certain parcel nature to the surface of magnetic sphere, the magnetic sphere also is difficult for inhaling the pole phase separation with the magnetism.

Optionally, a U-shaped groove matched with the radian of the outer surface of the magnetic ball is formed in the magnetic suction end, and a plurality of arc suction positions are formed in the inner wall of the U-shaped groove.

Through adopting above-mentioned technical scheme, the inner wall radian and the degree of depth in U groove and the surface looks adaptation of magnetic ball, after magnetic ball and U groove contact, the surface of magnetic ball can be with the laminating of U inslot wall many positions, at the nasal catheter extraction in-process, even if the magnetic ball has taken place to slide, because the magnetism of the surface in magnetic ball and the inner wall face in U groove and face is inhaled and is connected, and the inner wall in U groove also has certain parcel nature to the surface of magnetic ball, and can slide in the U inslot when magnetic ball slides, be difficult for the roll-off U groove. The inner wall in U groove can have a plurality of arcs to inhale the position in the groove, can be convenient for magnetism ball and magnetism to inhale the pole and contact, has improved the efficiency of supplementary nose courage drainage tube transnasal derivation effectively, reduces patient's discomfort.

Optionally, the tongue depressor includes a mouth expanding piece, a tongue depressor and an adjusting piece, the mouth expanding piece and the tail of the tongue depressor are hinged, the adjusting piece includes a fixing piece and a tongue depressor adjusting piece, the fixing piece is connected with the mouth expanding piece, and the tongue depressor adjusting piece is connected with the tongue depressor and is rotationally connected with the mouth expanding piece.

By adopting the technical scheme, when the guide tube is sent into the pharyngeal portion of the patient from the oral cavity of the patient, the mouth expanding piece is used for propping against the palate of the patient, and the tongue pressing piece is used for propping against the tongue of the patient. The tongue pressing adjusting piece is pressed, and the tongue pressing plate rotates to adjust the opening distance between the mouth expanding piece and the head section of the tongue pressing piece, so that the oral cavity of a patient can be kept in an open state.

Optionally, the middle part of the guide tube is bent to form an arc part which is matched with the oral cavity.

Through adopting above-mentioned technical scheme, with the curved arc portion of oral cavity looks adaptation can be when stretching into the pharyngeal depths with the magnetic suction pole, avoid causing the damage to patient's pharyngeal.

Optionally, the guide tube is connected the mouth piece expands, the guide tube keep away from mouth piece expands and be close to the position of curved arc portion is provided with the sacculus, the sacculus communicate in the guide tube, the sacculus is made by the elastic component.

Through adopting above-mentioned technical scheme, when other pipes have been preset in patient's oral cavity, only need when using supplementary guiding device, press the sacculus flat earlier, support the one end that is close to the mouth piece of expanding of guiding pipe, when waiting the sacculus to put into the oral cavity, loosen the one end that the guiding pipe is close to the mouth piece of expanding, gas gets into the sacculus by the guiding pipe, and the sacculus inflation becomes sphericity, can support other pipes in one side of oral cavity, avoids other pipes to influence nasal catheter work.

Optionally, the magnetic attraction rod is made of a permanent magnet.

By adopting the technical scheme, the magnetic attraction rod made of the permanent magnet is low in manufacturing cost and easy to produce.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up the concave arc and inhale the position on the end is inhaled to magnetism, the arc is inhaled the surface that can laminate the magnetic ball, realizes that magnetism is inhaled the face and is contacted with the face of pole and magnetic ball, has increased the area of contact that magnetism was inhaled pole and magnetic ball, has strengthened the steadiness that magnetism was inhaled pole and magnetic ball and is connected, has improved the efficiency of supplementary nose courage drainage tube transnasal derivation.

2. Through setting up curved arc portion at the guide tube middle part, can avoid causing the damage to patient's pharyngeal when stretching into pharyngeal depths with the magnetic suction rod.

3. Through pressing tongue piece at intake piece, can be convenient for the operator open patient's oral cavity when using intake piece, the condition of better seeing patient's pharynx.

Drawings

Fig. 1 is a schematic view of a device for assisting in guiding out a medical nasobiliary drainage tube.

FIG. 2 is a schematic partial structural view of a device for assisting in the delivery of a medical nasobiliary drainage tube.

Fig. 3 is a cross-sectional view of a junction of a magnetic suction rod and a guide tube.

Fig. 4 is a schematic diagram II of a device for assisting in guiding out a medical nasal biliary drainage tube.

Reference numerals illustrate: 1. a nasal catheter; 11. a magnetic ball; 12. a mounting base; 2. an intake piece; 21. a tongue pressing member; 211. a mouth-expanding member; 212. a tongue-pressing piece; 213. an adjusting member; 2131. a fixing piece; 2132. tongue pressing adjusting pieces; 22. a balloon; 23. a guide; 231. a guide tube; 2311. a limiting block; 2312. an arc bending part; 232. a magnetic suction rod; 2321. a fixed end; 2322. a magnetic suction end; 2323. arc sucking position.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a device for assisting in guiding out a medical nasobiliary drainage tube. Referring to fig. 1, the device for assisting in guiding out the medical nasobiliary drainage tube comprises a nasal catheter 1 and an intake piece 2, wherein the nasal catheter 1 and the intake piece 2 are matched for use, the nasal catheter 1 is used for extending into the pharynx from the nasal cavity, and the intake piece 2 is used for extending into the pharynx from the oral cavity, and one end of the nasal catheter 1 extending into the pharynx is led out from the oral cavity.

In various embodiments, the nasal cannula 1 may be of various types, and in particular, but not limited to, a nasal cannula 1 is provided, the length of the nasal cannula 1 being 50mm-450mm, the outer diameter of the nasal cannula 1 being 4mm-6mm, and the wall thickness of the nasal cannula 1 being 1mm. In addition, in different embodiments, the nasal catheter 1 may be made of different materials, but only has enough toughness and flexibility, and considering that the nasal catheter 1 belongs to a medical auxiliary device, the nasal catheter 1 is made of a material with enough safety, may be made of a medical rubber material, and may be made of a medical silica gel material.

One end of the nasal catheter 1 is provided with a magnetic ball 11, and the end of the nasal catheter 1 provided with the magnetic ball 11 is used for extending from the nasal cavity to the pharynx. In different embodiments, the magnetic ball 11 and the nasal catheter 1 may be connected in different manners, so long as the magnetic ball 11 and the nasal catheter 1 can be relatively fixed, and when the nasal catheter 1 is led out from the oral cavity, the magnetic ball 11 may be detached, so that the nasal catheter 1 is connected with the nasal biliary drainage tube. A magnetic ball 11 with a diameter slightly larger than the inner diameter of the nasal catheter 1 can be arranged, the magnetic ball 11 is embedded into the end part of the nasal catheter 1, as an example, the magnetic ball 11 is provided with a mounting seat 12, the mounting seat 12 is made of silica gel, the mounting seat 12 is provided with a mounting groove of the magnetic ball 11 and a mounting groove of the nasal catheter 1, the mounting groove of the magnetic ball 11 is matched with the magnetic ball 11, the magnetic ball 11 is placed in the mounting groove of the magnetic ball 11, and the mounting groove of the nasal catheter 1 is matched with the nasal catheter 1. When the mounting seat 12 is mounted on the nasal catheter 1, interference fit can be realized with the nasal catheter 1, the inner surface of the mounting groove of the nasal catheter 1 is frosted, and the phenomenon that the mounting seat 12 is separated from the nasal catheter 1 can be avoided when the nasal catheter is used. The mounting seat 12 made of silica gel has good wrapping property, and the phenomenon that the magnetic ball 11 is separated from the mounting seat 12 can be avoided. In different embodiments, the magnetic ball 11 may be made of different materials, but it is sufficient to have enough safety and be attracted by a magnet, and the magnetic ball 11 may be made of stainless steel, for example.

With continued reference to fig. 1, in various embodiments, the intake member 2 may be formed of various components, and in particular, but not limited to, an intake member 2 is provided, the intake member 2 including a tongue-pressing member 21 and a guide member 23, the tongue-pressing member 21 being connected to the guide member 23, the tongue-pressing member 21 being configured to press against the tongue of a patient and expand the mouth of the patient, and the guide member 23 being configured to extend into the pharynx of the patient and to carry out the nasal cannula 1.

In different embodiments, the tongue depressor 21 may have different structures, and may be capable of abutting against and pressing the tongue of the patient, so that the mouth of the patient may be kept open, and the tongue depressor 21 may be composed of a rectangular plate-shaped tongue depressor and a holding rod, and the guide is connected to the tongue depressor. In order to facilitate the application of force by a user during use, referring to fig. 1 and 2, a structure of a tongue depressor 21 is specifically but not limitatively provided, the tongue depressor 21 includes a mouth expanding piece 211, a tongue depressor 212 and an adjusting piece 213, the tail parts of the mouth expanding piece 211 and the tongue depressor 212 are hinged, the adjusting piece 213 includes a fixing piece 2131 and a tongue depressor adjusting piece 2132, the fixing piece 2131 is connected with the mouth expanding piece 211, and the tongue depressor adjusting piece 213 is connected with the tongue depressor 212 and is rotatably connected with the mouth expanding piece 211. In different embodiments, the mouth piece 211 and the tongue depressor 212 may be different shapes, and as an example, the mouth piece and the tongue depressor 21 are split into a tubular shape. When not inserted into the mouth of a patient, the head end of the mouth piece 211 and the head end of the tongue piece 212 are closed. When it is desired to hold the patient's mouth open, pressing the tongue depressor adjustment 213 toward the anchor sheet 2131 can cause the opening of the head of the mouth piece 211 and the head of the tongue depressor 21 to expand to achieve the opening of the patient's mouth.

The guide member 23 includes a guide tube 231 and a magnetic suction rod 232, wherein the guide tube 231 is connected to the mouth-piece 211, and in different embodiments, the guide tube 231 can be made of different materials, plastic or glass. The guide tube 231 generally needs to be deep into the pharynx of the patient, so that the guide tube 231 can be deep into the pharynx of the patient and cannot damage the pharynx of the patient, the curved portion 2312 is curved in the middle of the guide tube 231, and the curved portion 2312 can stretch the magnetic suction rod 232 deep into the pharynx and cannot damage the pharynx of the patient easily.

Referring to fig. 3, the magnetic rod 232 has a fixed end 2321 and a magnetic end 2322, the fixed end 2321 of the magnetic rod 232 extends into one end of the guide tube 231 away from the mouth-expanding part 211, in different embodiments, the magnetic rod 232 and the guide tube 231 may have different connection modes, which can relatively fix the magnetic rod 232 and the guide tube 231, so as to avoid the situation that the magnetic rod 232 is separated from the guide tube 231 when in use. Specifically, but not limitedly, a connection manner is proposed, an inner wall of one end of the guide tube 231 far away from the mouth expanding piece 211 is provided with a limiting block 2311 protruding inwards along the circumferential direction of the guide tube 231, a limiting hole is formed by enclosing the limiting block 2311, the maximum outer diameter of the fixed end 2321 is larger than the maximum inner diameter of the limiting hole, the maximum outer diameter of the magnetic attraction end 2322 is equal to the maximum inner diameter of the limiting hole, and the magnetic attraction end 2322 passes through the limiting hole and is arranged outside the guide tube 231. As an example, the fixed end 2321 may be cylindrical, and the magnetic attraction end 2322 may be cuboid, and the limiting hole is matched with the magnetic attraction end 2322. In order to avoid loss of the patient's pharynx when the magnetic rod 232 extends into the patient's pharynx, the edges of the magnetic tip 2322 may be rounded. In order to avoid the magnetic attraction rod 232 from sliding into the guide pipe 231, the outer wall of the joint of the magnetic attraction end 2322 and the limiting block 2311 can be frosted so as to increase the friction force between the magnetic attraction end 2322 and the limiting block 2311.

The magnetic attraction rod 232 is made of a permanent magnet, and considering that the intake piece 2 is a disposable medical instrument, the magnetic attraction rod 232 made of the permanent magnet can achieve a good magnetic attraction effect, and can reduce production cost and production difficulty.

Referring to fig. 1 and 3, in order to enhance the magnetic contact stability between the magnetic rod 232 and the magnetic ball 11, concave arc sucking positions 2323 may be formed on the side wall of the magnetic sucking end 2322. The magnetic suction rod 232 stretches into the pharyngeal portion and is in an inclined state, the nasal catheter 1 is easier to magnetically suck and contact with the side wall of the magnetic suction rod 232 after entering the pharyngeal portion from the nasal cavity, the side wall of the magnetic suction end 2322 is provided with an arc suction position 2323 attached to the outer surface of the magnetic ball 11, the arc suction position 2323 is used for attaching to the outer surface of the magnetic ball 11, the surface-to-surface contact of the magnetic suction rod 232 and the magnetic ball 11 is achieved, the contact area of the magnetic suction rod 232 and the magnetic ball 11 is increased, and the connection stability of the magnetic suction rod 232 and the magnetic ball 11 is enhanced. For example, a hemispherical groove adapted to the radian of the outer surface of the magnetic ball 11 may be formed on the side wall of the magnetic suction end 2322, and a concave arc suction position 2323 is formed on the inner wall of the hemispherical groove

Referring to fig. 3 and fig. 4, in order to further improve the efficiency of the magnetic suction rod 232 to attract the magnetic ball 11 to lead the nasal catheter 1 out of the oral cavity, a U-shaped groove adapted to the radian of the outer surface of the magnetic ball 11 may be formed on the end surface of the magnetic suction end 2322, and a plurality of continuous arc suction positions 2323 are formed on the inner wall of the U-shaped groove, so that the magnetic ball 11 and the magnetic suction rod 232 can more conveniently realize surface-to-surface magnetic suction contact. In the process that the intake piece 2 pulls the nasal catheter 1, the nasal catheter 1 is bent, the magnetic ball 11 possibly slides to the end face of the magnetic suction end 2322 to be contacted with the magnetic suction end 2322, a U groove is formed in the end face of the magnetic suction end 2322, when the magnetic ball 11 slides to the end face of the magnetic suction end 2322, the arc suction position 2323 for the surface contact of the magnetic ball 11 is provided, and the probability of traction failure caused by unstable contact when the magnetic ball 11 is contacted with the magnetic suction end 2322 is reduced.

Referring to fig. 4, in order to enable the nasal catheter 1 to work normally when other catheters are preset in the patient's mouth, a balloon 22 is provided at a position of the guide tube 231 far from the mouth-expanding member 211 and near the curved portion 2312, the balloon 22 is communicated with the guide tube 231, and the balloon 22 is made of an elastic member. When the nasal catheter is used, the balloon 22 is flattened firstly to prop against one end of the guide tube 231 close to the mouth expanding piece 211, and when the balloon 22 is placed in the oral cavity, the end of the guide tube 231 close to the mouth expanding piece 211 is loosened, gas enters the balloon 22 through the guide tube 231, the balloon 22 is inflated to be spherical, other catheters can prop against one side of the oral cavity, and the other catheters are prevented from influencing the work of the nasal catheter 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The device for assisting the medical nasal biliary drainage tube to be guided out is characterized by comprising a nasal catheter (1) and an intake piece (2);

one end of the nasal catheter (1) is provided with a magnetic ball (11), and the end of the nasal catheter (1) provided with the magnetic ball (11) is used for extending from a nasal cavity into the pharyngeal portion;

the ingestion piece (2) comprises a tongue pressing piece (21) and a guide piece (23), the guide piece (23) comprises a guide pipe (231) and a magnetic suction rod (232), the guide pipe (231) is connected to the tongue pressing piece (21), the magnetic suction rod (232) is provided with a fixed end (2321) and a magnetic suction end (2322), the fixed end (2321) of the magnetic suction rod (232) extends into the guide pipe (231) to be far away from one end of the tongue pressing piece (21), an arc suction position (2323) of an indent is formed in the magnetic suction end (2322), and the arc suction position (2323) is used for being attached to the outer surface of the magnetic ball (11).

2. The device for assisting medical nasal biliary drainage tube guiding out according to claim 1, characterized in that a limiting block (2311) is protruded inwards along the circumference of the guiding tube (231) on the inner wall of one end of the guiding tube (231) far away from the tongue pressing piece (21), a limiting hole is formed by encircling the limiting block (2311), the maximum outer diameter of the fixed end (2321) is larger than the inner diameter of the limiting hole, the maximum outer diameter of the magnetic suction end (2322) is equal to the inner diameter of the limiting hole, and the magnetic suction end (2322) penetrates through the limiting hole and is arranged outside the guiding tube (231).

3. The device for assisting the guiding-out of the medical nasobiliary drainage tube according to claim 1, wherein a hemispherical groove which is matched with the radian of the outer surface of the magnetic ball (11) is formed on the magnetic suction end (2322), and the arc suction position (2323) is formed in the hemispherical groove.

4. The device for assisting in guiding out a medical nasobiliary drainage tube according to claim 1, characterized in that a U-shaped groove which is matched with the radian of the outer surface of the magnetic ball (11) is formed on the magnetic suction end (2322), and a plurality of arc suction positions (2323) are formed on the inner wall of the U-shaped groove.

5. The device for assisting the guiding-out of the medical nasobiliparis drainage tube according to claim 1, wherein the tongue pressing piece (21) comprises a mouth expanding piece (211), a tongue pressing piece (212) and an adjusting piece (213), the mouth expanding piece (211) is hinged with the tail of the tongue pressing piece (212), the adjusting piece (213) comprises a fixing piece (2131) and a tongue pressing adjusting piece (2132), the fixing piece (2131) is connected with the mouth expanding piece (211), and the adjusting piece (213) is connected with the tongue pressing piece (212) and is rotatably connected with the mouth expanding piece (211).

6. The device for assisting medical nasal and biliary drainage tube guiding out according to claim 5, characterized in that the middle part of the guiding tube (231) is curved with an arc part (2312) adapted to the oral cavity.

7. The device for assisting medical nasal biliary drainage tube in guiding out according to claim 6, characterized in that the guiding tube (231) is connected to the mouth-expanding member (211), the guiding tube (231) is provided with a balloon (22) at a position far from the mouth-expanding member (211) and near the curved portion (2312), the balloon (22) is communicated with the guiding tube (231), and the balloon (22) is made of an elastic member.

8. The device for assisting in the export of a medical nasobiliary drainage tube according to claim 1, characterized in that said magnetic suction rod (232) is made of a permanent magnet.

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