Nasocholedochal port-nasal exchanger

Abstract

The utility model provides a nose biliary duct mouth nose exchanger, including tongue body, threading sleeve and guide wire, threading sleeve connects in the inner end of tongue body, and is connected on the outside of tongue body, the inner end of guide wire is fixedly connected in the inner end of tongue body, and is connected on the other outside of tongue body, and the outer end of guide wire is movably passed through threading sleeve and extends the oral cavity, the utility model discloses a threading sleeve is connected in one side outside of tongue body, and one end of guide wire is fixed in the other side outside of tongue body, so that guide wire can form the thimble through the threading sleeve of outside, need not open the passage structure in the inside of tongue body, and effectively simplify the structure, and because guide wire is in the thimble of tongue body outside formation, so compared with the guide wire that stretches out from the inside of tongue body, the thimble formed in the utility model is wider, makes the nose pipe to be more convenient and efficient to be taken.

Description

Technical Field

[0001] This utility model relates to the field of nasobiliary duct placement technology, and in particular to a nasobiliary duct oronasal exchange device. Background Technology

[0002] Following endoscopic retrograde cholangiopancreatography (ERCP), a nasobiliary drainage tube is typically inserted into the bile duct through the mouth to drain bile or perform biliary decompression. To reduce patient discomfort, long-term external placement requires a method to exchange it to the nasal cavity, so that the other end needs to be brought out and fixed through the nasal cavity.

[0003] The traditional method of oral-nasal conversion involves inserting a nasal guide tube into the nose, which is then removed through the mouth using oval forceps or a guidewire. The inner end of the nasal tube is connected to the oral segment of the bile duct, thus realizing a drainage path from the outer end of the nasal tube to the pharynx and bile duct, completing the exchange from the oral cavity to the nasal cavity.

[0004] For obese patients, patients with posterior displacement of the tongue, or patients who have undergone general anesthesia, the oropharynx is difficult to expose, the oral cavity is narrow, and the location of the tube cannot be clearly seen during the operation, which increases the difficulty of nasal cannula transfer and increases the patient's suffering.

[0005] In existing patented technologies, such as Chinese patent CN210844497U authorized on 2020-06-26 and Chinese patent CN204655747U authorized on 2015-09-23, the guide wire is extended to form a loop structure. After the nasal tube is inserted, the loop is tightened to clamp the inner end of the nasal tube. After the exchanger is removed, the inner end of the nasal tube can be taken out. After connecting with the oral segment of the bile duct, the oral-nasal conversion can be completed.

[0006] However, in the aforementioned existing technologies, controlling the size of the guidewire loop requires the guidewire to be pulled out entirely within the exchanger, necessitating the formation of a channel structure within the exchanger, making the structure quite complex. Furthermore, the width of the loop is significantly affected by the width of the exchanger (because the guidewire extends from inside the exchanger), thus impacting the efficiency of nasal tube retrieval. Utility Model Content

[0007] The purpose of this invention is to provide a nasobiliary-oronasal exchanger that eliminates the need to form a channel inside the exchanger, effectively simplifying the structure, and allowing for the formation of a wider loop with the same exchanger width.

[0008] This utility model provides a nasobiliary-oral exchanger, including a tongue depressor, a threading cannula, and a guide wire; the threading cannula is connected to the inner end of the tongue depressor and to the outer surface of the tongue depressor; the inner end of the guide wire is fixedly connected to the inner end of the tongue depressor and to the other outer surface of the tongue depressor, and the outer end of the guide wire moves through the threading cannula and extends out of the oral cavity.

[0009] Furthermore, the threading sleeve is a short hollow tube.

[0010] Furthermore, when the bottom surface of the tongue depressor presses against the tongue, the threading sleeve is connected to the right side of the tongue depressor.

[0011] Furthermore, the fixed end of the guide wire is connected to the left side of the tongue depressor.

[0012] Furthermore, the tongue depressor includes a tongue depressor segment.

[0013] Furthermore, the tongue depressor also includes a connecting segment.

[0014] Furthermore, the tongue depressor segment is connected end-to-end with the connecting segment.

[0015] Furthermore, the tongue depressor segment is arc-shaped and conforms to the oropharynx.

[0016] Furthermore, the outer end of the connecting section is provided with a handle with an enlarged outer diameter.

[0017] Furthermore, the tongue depressor is made of soft silicone.

[0018] The technical solution of this utility model connects a threading sleeve to one side of the tongue depressor, and fixes one end of the guide wire to the other side of the tongue depressor. This allows the guide wire to pass through the external threading sleeve and form a loop, eliminating the need for a channel structure inside the tongue depressor and effectively simplifying the structure. Furthermore, because the guide wire forms a loop outside the tongue depressor, the loop created by this utility model is naturally wider than that formed by a guide wire extending from inside the tongue depressor, making it easier and more efficient to remove the nasal tube. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of point A;

[0022] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0023] Figure 4 This utility model Figure 3Enlarged view of point B;

[0024] Figure 5 This is a side view of the present invention;

[0025] Figure 6 This is a diagram showing the usage state of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Tongue depressor; 11-Tongue depressor segment; 12-Connecting segment; 13-Handle;

[0028] 2-Threading sleeve;

[0029] 3-Guidewire; 31-Ring;

[0030] 4-Nasal duct; 5-Bile duct. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1

[0035] like Figures 1-6 As shown, this utility model provides a nasobiliary-oronasal exchanger, including a tongue depressor 1, a threading cannula 2, and a guide wire 3. The threading cannula 2 is connected to the inner end of the tongue depressor 1 and also to the outer surface of the tongue depressor 1. The inner end of the guide wire 3 is fixedly connected to the inner end of the tongue depressor 1 and also to the other outer surface of the tongue depressor 1. The outer end of the guide wire 3 moves through the threading cannula 2 and extends out of the oral cavity. The threading cannula 2 is a short, hollow tube. When the bottom surface of the tongue depressor 1 presses against the tongue, the fixed ends of the threading cannula 2 and the guide wire 3 are located on the right and left sides of the tongue depressor 1, respectively. The tongue depressor 1 is made of soft silicone.

[0036] Specifically, the guidewire 3 passes through the threading cannula 2 from bottom to top. During the operation, the exchanger is inserted into the patient's mouth, the tongue depressor 1 is inserted into the pharynx and presses down on the tongue, fully exposing the pharynx and increasing the operator's field of vision. Then, the free end of the guidewire 3 is pushed to advance it into the pharynx along the threading cannula 2. Since the other end of the guidewire 3 is fixed on the left side of the tongue depressor 1 and the threading cannula 2 is fixed on the right side of the tongue depressor 1, a loop 31 is formed outside the end of the tongue depressor 1 when the guidewire 3 is advanced.

[0037] Next, insert the nasal tube 4 into the patient's nose. As the nasal tube 4 goes deeper, its inner end passes through the pharynx and enters the loop 31 formed by the guide wire 3. Then, retract the guide wire 3 to tighten the loop 31, clamp the inner end of the nasal tube 4, and then remove the exchanger. The inner end of the nasal tube 4 can then be pulled out of the patient's mouth. After removing the exchanger, connect the inner end of the nasal tube 4 to the oral segment of the bile duct 5 to complete the oral-nasal exchange.

[0038] The tongue depressor 1 is made of medical-grade soft silicone with a smooth surface, which can reduce the patient's pain when depressing the tongue.

[0039] This invention eliminates the need for a channel structure inside the tongue depressor 1, effectively simplifying the structure. Furthermore, since the guide wire 3 forms a loop 31 outside the tongue depressor 1, for the same width of the tongue depressor 1, the loop 31 formed by the guide wire 3 extending from the outside is naturally wider than that formed by a guide wire 3 extending from inside the tongue depressor 1. This allows for easier and more efficient retrieval of the nasal tube, improving the success rate of the exchange and shortening the exchange time.

[0040] Example 2

[0041] The tongue depressor 1 includes a tongue depressor segment 11. The tongue depressor 1 also includes a connecting segment 12. The tongue depressor segment 11 and the connecting segment 12 are connected end to end. The tongue depressor segment 11 is arc-shaped and fits against the oropharynx. The outer end of the connecting segment is provided with a handle 13 with an enlarged outer diameter.

[0042] Specifically, the tongue depressor 11 has a smooth arc shape (conforming to the physiological curvature of the human oropharynx). After insertion, the tongue depressor 11 can fully conform to the contour of the oropharynx and fully expose the pharynx. The connecting section 12 is used to extend the tongue depressor 11 outside the mouth for convenient medical operation. The outer end of the connecting section 12 is provided with a circular handle 13 similar to the tail end of a syringe for easy gripping and operation by medical staff.

[0043] The usage and principle of this utility model:

[0044] During the procedure, the exchanger is inserted into the patient's mouth, and the tongue depressor 1 is inserted into the pharynx to press down the tongue, fully exposing the pharynx and increasing the operator's field of vision. Then, the free end of the guidewire 3 is pushed along the threading cannula 2 into the pharynx. Since the other end of the guidewire 3 is fixed on the left side of the tongue depressor 1 and the threading cannula 2 is fixed on the right side of the tongue depressor 1, a loop 31 is formed outside the end of the tongue depressor 1 when the guidewire 3 is pushed in. Next, the nasal tube 4 is inserted into the patient's nose. As the nasal tube 4 goes deeper, its inner end passes through the pharynx and enters the loop 31 formed by the guidewire 3. Then, the guidewire 3 is pulled back to tighten the loop 31. After clamping the inner end of the nasal tube 4, the exchanger is removed, and the inner end of the nasal tube 4 can be pulled out of the patient's mouth. After removing the exchanger, the inner end of the nasal tube 4 is connected to the oral segment of the bile duct 5 to complete the oral-nasal exchange.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A nasobiliary cholangiocatheter port-nasal exchanger, characterized by, Includes tongue depressor, threading cannula, and guide wire; The threading sleeve is connected to the inner end of the tongue depressor and also to the outer surface of the tongue depressor. The inner end of the guidewire is fixedly connected to the inner end of the tongue depressor and to the other outer surface of the tongue depressor. The outer end of the guidewire moves through the threading sleeve and extends out of the oral cavity.

2. The nasobiliary cholangiocatheter-nose exchange according to claim 1, wherein The threading sleeve is a short hollow tube.

3. The nasobiliary cholangiocatheter-nose exchange according to claim 1, wherein, When the bottom surface of the tongue depressor presses down on the tongue, the threading sleeve is connected to the right side of the tongue depressor.

4. The nasobiliary cholangiocatheter-nose exchange according to claim 3, wherein The fixed end of the guide wire is connected to the left side of the tongue depressor.

5. The nasobiliary photodetector according to claim 1, wherein The tongue depressor includes a tongue depressor segment.

6. The nasobiliary cholangiocatheter-nose exchange according to claim 5, wherein The tongue depressor also includes a connecting segment.

7. The nasobiliary cholangiocatheter-nose exchange according to claim 6, wherein The tongue depressor segment is connected end-to-end with the connecting segment.

8. The nasobiliary photodetector according to claim 7, wherein The tongue depressor is an arc shape that fits into the oropharynx.

9. The nasobiliary photodetector according to claim 7, wherein The outer end of the connecting section is provided with a handle with an enlarged outer diameter.

10. The nasobiliary photodetector according to claim 1, wherein The tongue depressor is made of soft silicone.

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