CN218607509U

CN218607509U - Oral-nasal conversion device for nasal bile duct

Info

Publication number: CN218607509U
Application number: CN202220474969.2U
Authority: CN
Inventors: 雷婷婷; 徐琳; 李敏
Original assignee: Chengdu Second Peoples Hospital
Current assignee: Chengdu Second Peoples Hospital
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2023-03-14
Anticipated expiration: 2032-03-03

Abstract

The utility model discloses a nose bile duct oronasal conversion equipment belongs to medical instrument's technical field. The guide wire device comprises a hollow hose, wherein a guide wire is connected in the hollow hose in a sliding manner, one end of the hollow hose is connected with an annular groove, and the part of the guide wire extending out of the hollow hose surrounds the annular groove. The guide wire comprises an insertion part and a shape memory part, and an insertion opening and a shape memory opening are formed in the connection position of the annular groove and the hollow hose. The utility model has the advantages of simple structure, convenient to use need not medical personnel and visits the cavity hose of instrument with oropharynx portion from the oral cavity in the use and pull out, also need not the patient and open the cooperation of big mouth for a long time, is favorable to improving the comfort level of patient when nose bile duct oronasal conversion, accomplishes oronasal conversion high-efficiently safely.

Description

Oral-nasal conversion device for nasal bile duct

Technical Field

The utility model relates to a nose bile duct oronasal conversion equipment belongs to medical instrument's technical field.

Background

Endoscopic Retrograde Cholangiopancreatography (ERCP) and related technologies thereof have become important examination and treatment methods for clinically solving the cholangiopancreatopathies, and have become more and more preferred methods for treating the cholangiopancreatography because of the advantages of minimal invasion, little pain, good treatment effect and the like. Endoscopic nasobiliary drainage (ENBD) is one of the important methods for solving bile duct stones and bile duct stenosis by inserting a drainage tube to a predetermined position of a bile duct after success of Endoscopic Retrograde Cholangiopancreatography (ERCP), leading the drainage tube out of a nasal cavity through duodenum, stomach and esophagus and through the laryngeal part of pharynx. In operation, the nose bile duct after the endoscope is removed is left outside the oral cavity, and in order to reduce the discomfort of the left nose bile duct, the nose bile duct is generally switched from the oral cavity to be led out from the nasal cavity.

At present, when the oronasal conversion of nose bile duct is carried out, adopt most to inhale hollow type pipeline such as phlegm pipe, stomach tube and insert the laryngopharynx from the nasal cavity, drag out hollow pipeline from the oral cavity through instruments such as tweezers, lantern ring by medical personnel again, the nose bile duct is fixed with it is pulled out from the nasal cavity through this hollow pipeline. However, when the mouth and nose conversion is carried out by the method, the depth of the intubation tube is not easy to control, and the hollow pipeline is easy to be inserted into the trachea to cause the patient to choke; when the hollow pipeline is clamped or sleeved by the forceps and the lantern ring, the nasal mucosa is easily damaged, and the foreign body sensation of a patient is enhanced; meanwhile, the whole operation process requires that the patient opens a large mouth for a long time to be matched, so that the pain of the patient is increased, and medical staff can be bitten when the patient is not matched. Therefore, how to simply, rapidly, efficiently and safely complete the oronasal transformation is an urgent problem to be solved in the nasal and biliary tube nursing.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a nose bile duct oronasal conversion equipment.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a nose bile duct oronasal conversion equipment, includes the cavity hose, sliding connection has the seal wire in the cavity hose, the one end of cavity hose is provided with the annular, the part that the seal wire stretches out the cavity hose encircles in the annular. The guide wire comprises an insertion part and a shape memory part, and an insertion opening and a shape memory opening are formed in the connection position of the annular groove and the hollow hose.

Furthermore, the shape memory part is arc-shaped, and the radian range of the shape memory part is 175-185 degrees.

Furthermore, the annular groove is oval, and the hollow hose is connected to the long shaft end of the annular groove.

Furthermore, the shape memory part is semi-elliptical, and the shape of the shape memory part is consistent with the shape of one side, far away from the hollow hose, of the annular groove.

Further, the annular groove also comprises a closing piece for closing the annular groove, and a moving opening for moving the guide wire is formed in the closing piece.

Furthermore, a moving auxiliary element for pushing the guide wire to slide along the ring groove is arranged at the moving opening of the closing element.

Further, it includes first gyro wheel and second gyro wheel to remove the auxiliary, first gyro wheel inlays and locates in the annular, first gyro wheel rotates with the annular and is connected, seted up along circumference on the first gyro wheel with seal wire matched with recess, the second gyro wheel erects in removal mouth department, leave the passageway that holds the seal wire and pass through between first gyro wheel and the second gyro wheel.

Furthermore, the surface of the second roller is provided with anti-skid lines.

Furthermore, scales are arranged on the hollow hose.

The utility model has the advantages that:

through setting up the annular groove of being connected with the cavity hose, it can be relative cavity hose gliding seal wire to wind the annular groove to set up, when carrying out the oronasal conversion to the nasobiliary duct, the inserted part that keeps the seal wire earlier is located the cavity catheter, shape memory portion then is located the annular groove, stretch into oropharyngeal portion (about 15 cm) from the nasal cavity with the cavity hose, then remove the seal wire, make the inserted part of seal wire retreat from the inserted opening to in the annular groove, shape memory portion then gets into the cavity catheter from shape memory mouth department, treat that the inserted part retreats to in the annular groove, shape memory portion gets into the one end that the cavity hose kept away from the annular groove, continue to send into the cavity hose, the one end that the cavity hose kept away from the annular groove buckles along with the shape of shape memory portion, lead the cavity hose to the oral cavity, make it stretch out from patient's oral area, do not need not like this and medical personnel to follow oral cavity probe instrument and draw the cavity hose to oropharyngeal portion, also need not the cooperation of patient for a long time to open up the mouth, can improve patient's comfort level when the nasonasal oronasal and nasal conversion greatly, simple fast, accomplish the oronasal conversion safely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is an enlarged view of a portion B in fig. 3.

In the figure, 1, a hollow hose; 11. calibration; 2. a guide wire; 21. an insertion portion; 22. a shape memory section; 3. a ring groove; 31. a closure; 32. moving the port; 33. moving the auxiliary element; 331. a first roller; 332. a second roller.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and fig. 3, the utility model provides a technical solution: the utility model provides a nose bile duct oronasal conversion equipment, includes hollow hose 1, and hollow hose 1 texture is soft, and close skin nature is stronger, can adopt materials such as silica gel, silicon rubber, polyvinyl chloride to make, is difficult for causing the damage to the nasal mucosa, utilizes this hollow hose 1 to stretch into the oral cavity from the nasal cavity, and the nose bile duct that will stretch out from the oral cavity leads to and stretches out from the nasal cavity. In order to control the insertion depth of the hollow hose 1 and improve the accuracy of the operation, the hollow hose 1 is provided with a scale 11. A guide wire 2 is connected in the hollow hose 1 in a sliding mode, the extension direction of the hollow hose 1 is guided by the guide wire 2, an annular groove 3 is formed in one end of the hollow hose 1, and the part, extending out of the hollow hose 1, of the guide wire 2 surrounds the annular groove 3.

As shown in fig. 3, in order to guide the hollow tube 1 to be inserted into the nasal cavity and to extend from the oral cavity, the guide wire 2 of the present embodiment includes an insertion portion 21 and a shape memory portion 22, the shape memory portion 22 is made of a shape memory material such as nickel titanium copper, nickel titanium chromium, etc., the insertion portion 21 and the shape memory portion 22 are respectively located at both ends of the guide wire 2, and the guide wire 2 structure is composed of the insertion portion 21 and the shape memory portion 22. An insertion opening and a shape memory opening are arranged at the joint of the hollow ring groove 3 and the hollow hose 1, one end of the insertion part 21 of the guide wire 2 can retreat from the hollow hose 1 to the ring groove 3 or enter the hollow hose 1 from the ring groove 3 from the insertion opening, and the shape memory part 22 of the guide wire 2 can enter the hollow hose 1 from the ring groove 3 or retreat from the hollow hose 1 to the ring groove 3 from the shape memory opening.

The shape memory part 22 of this embodiment is arc-shaped, and the shape memory part 22 deforms when moving along the ring groove 3 and the hollow hose 1, and when moving to the front end of the hollow hose 1, the shape memory part 22 restores the arc shape to guide the hollow hose 1 to continue to extend. According to ergonomics, the curvature of the nasopharynx when the human body is closed is about 180 degrees, and the curvature of the nasopharynx when the human body is opened is slightly larger than the curvature when the human body is closed, so that the curvature range of the shape memory part 22 of the embodiment is 175 to 185 degrees, and when the shape memory part 22 moves to the front end of the middle hose, the hollow hose 1 is guided to the oral cavity, so that the hollow hose can smoothly extend out of the oral cavity. When the hollow hose 1 is inserted, the guide wire 2 is moved, the insertion part 21 and the shape memory part 22 of the guide wire 2 are respectively used for guiding the hollow hose 1, so that the hollow hose 1 extends into the nasal cavity and is guided out of the oral cavity, the condition that medical workers drag the front end of the hollow hose 1 from the oropharynx by using tools such as tweezers and lantern rings is effectively avoided, and the pain and discomfort brought to patients in the oronasal conversion process are reduced.

As shown in fig. 3 and 4, in order to facilitate the guide wire 2 to enter or exit from the hollow hose 1, the annular groove 3 of the present embodiment is oval, and the hollow hose 1 is connected to the end point of the long shaft of the annular groove 3, that is, the hollow hose 1 is connected to one end of the annular groove 3. In order to ensure that the guide wire 2 slides along the sliding groove, the ring groove 3 of the present embodiment further includes a closing member 31 for closing the ring groove 3, the closing member 31 is sleeved on the periphery of the ring groove 3, a channel for accommodating the guide wire 2 to slide therein is formed between the ring groove 3 and the closing member 31, a moving port 32 for moving the guide wire 2 is opened on the closing member 31, the guide wire 2 at the moving port 32 is exposed, and the medical staff can control the movement of the guide wire 2 from the moving port 32.

In the present embodiment, when the insertion portion 21 of the guide wire 2 is kept in the hollow soft tube and the shape memory portion 22 is kept in the annular groove 3 (i.e. the state in fig. 3), the front end of the hollow soft tube 1 (the right end of the hollow soft tube 1 in the figure) is extended into the oropharynx (extended by about 15 cm), then the guide wire 2 is moved, the insertion portion 21 is withdrawn from the hollow soft tube 1 into the annular groove 3 along the insertion opening, at the same time, the shape memory portion 22 at the other end of the guide wire 2 is correspondingly inserted into the hollow soft tube 1 from the annular groove 3 along the shape memory opening, the guide wire 2 is moved counterclockwise along the annular groove 3, when the shape memory portion 22 is moved to the front end of the hollow soft tube 1, the insertion portion 21 is correspondingly inserted into the annular groove 3, the hollow soft tube 1 is continuously inserted, the hollow soft tube 1 is guided into the oral cavity along the shape memory portion 22 which recovers the curvature, the hollow soft tube 1 is guided out from the oral cavity at the shape memory portion 22, and the nasal cavity is inserted into the lumen of the front end of the hollow soft tube 1, and pulled out from the nasal cavity, that is the nasal cavity, thereby completing the mouth-nose switching process.

Example two

The difference between the present embodiment and the first embodiment is mainly as follows: as shown in fig. 1 and 2, in order to facilitate the control of the movement of the guide wire 2, a moving auxiliary 33 for pushing the guide wire 2 to slide along the ring groove 3 is provided at the moving port 32 of the closing member 31. The moving auxiliary 33 of this embodiment includes a first roller 331 and a second roller 332 (see fig. 4), wherein the first roller 331 is embedded in the annular groove 3, the second roller 332 is erected at the moving opening 32, a channel for the guide wire 2 to pass through is formed between the first roller 331 and the second roller 332, the first roller 331 and the second roller 332 of this embodiment are both rotatably connected to the annular groove 3, both of which can rotate relative to the annular groove 3, and the guide wire 2 is tightly clamped in the channel by the first roller 331 and the second roller 332, that is, the guide wire 2 can be moved by rotating the rollers. In order to improve the stability of the moving auxiliary 33 driving the guide wire 2 to move, a groove matched with the guide wire 2 is formed on the first roller 331 along the circumferential direction, so that one side of the guide wire 2 can be embedded in the groove, and anti-skid lines are arranged on the surface of the second roller 332 to increase the friction force between the second roller 332 and the guide wire 2 and prevent the second roller 332 from skidding relative to the guide wire 2. When the switching device of the embodiment is used, after the hollow hose 1 is inserted into the throat of a patient, the medical staff rotates the second roller 332 to move the guide wire 2.

EXAMPLE III

The difference between the present embodiment and the first embodiment is mainly as follows: as shown in fig. 3 and 4, the shape memory portion 22 of the present embodiment is a semi-elliptical shape, and the shape of the shape memory portion 22 matches the shape of the annular groove 3 on the side away from the hollow hose 1, so that the shape memory portion 22 of the holding guide wire 2 is positioned in the right half region of the annular groove 3 before use, and the shape memory portion 22 is held in its original shape state. The utility model discloses a working process is the same with embodiment one.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a nose bile duct oronasal conversion equipment which characterized in that: the device comprises a hollow hose (1), wherein a guide wire (2) is connected in the hollow hose (1) in a sliding manner, a ring groove (3) is formed in one end of the hollow hose (1), and the part, extending out of the hollow hose (1), of the guide wire (2) surrounds the ring groove (3); the guide wire (2) comprises an insertion part (21) and a shape memory part (22), and an insertion opening and a shape memory opening are formed in the connection position of the annular groove (3) and the hollow hose (1).

2. The nasobiliary oronasal transition device of claim 1, wherein: the shape memory part (22) is arc-shaped, and the radian range of the shape memory part (22) is 175-185 degrees.

3. The nasobiliary oronasal transition device of claim 1, wherein: the annular groove (3) is oval, and the hollow hose (1) is connected to the end of the long shaft of the annular groove (3).

4. The nasobiliary oronasal transition device of claim 3, wherein: the shape memory part (22) is semi-elliptical, and the shape of the shape memory part (22) is consistent with the shape of one side, away from the hollow hose (1), of the annular groove (3).

5. The nasobiliary oronasal transition device of claim 1, wherein: the annular groove (3) further comprises a closing piece (31) used for closing the annular groove (3), and a moving opening (32) used for moving the guide wire (2) is formed in the closing piece (31).

6. The nasobiliary oronasal conversion device of claim 5, wherein: and a moving auxiliary part (33) for pushing the guide wire (2) to slide along the ring groove (3) is arranged at the moving port (32) of the closing part (31).

7. The nasobiliary oronasal transition device of claim 6, wherein: remove auxiliary (33) and include first gyro wheel (331) and second gyro wheel (332), first gyro wheel (331) inlays and locates in annular (3), first gyro wheel (331) rotate with annular (3) to be connected, first gyro wheel (331) is gone up and is offered the recess with seal wire (2) matched with along circumference, second gyro wheel (332) erect in removal mouth (32) department, leave the passageway that holds seal wire (2) and pass through between first gyro wheel (331) and second gyro wheel (332).

8. The nasobiliary oronasal transition device of claim 7, wherein: the surface of the second roller (332) is provided with anti-skid lines.

9. The nasobiliary oronasal transition device of claim 1, wherein: the hollow hose (1) is provided with scales (11).