Nasobiliary duct guiding device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a nasobiliary duct guiding device which comprises a nasobiliary duct guiding rod, a connecting base is fixedly installed at the upper end of the nasobiliary duct guiding rod, a sliding rod is connected into the nasobiliary duct guiding rod in a sliding mode, a guiding wire is connected to the sliding rod, and the other end of the guiding wire is connected to the connecting base. A fixing mechanism is arranged at the bottom of the nasobiliary duct guide rod, and the nasobiliary duct guide rod is provided with a placing mechanism in a matched mode. According to the nasobiliary duct guiding device, the sliding distance of the sliding rod in the nasobiliary duct guiding rod is adjusted in a sliding mode through the arranged sliding rod and the arranged guiding line, the size of a ring, on the upper side of the nasobiliary duct guiding rod, of the guiding line can be adjusted, loosening and tightening operation in the guiding process is achieved, and meanwhile the fixing mechanism is utilized for fixing the guiding rod. The nasobiliary duct can be locked at the upper end of the guide line, so that the nasobiliary duct can be pulled out of the oral cavity of a patient by subsequently pulling the nasobiliary duct guide rod, the nasobiliary duct guide rod plays a crucial role in smoothly leading out the nasobiliary duct, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a nasobiliary duct guide. Background Art

[0002] Endoscopic nasobiliary drainage is an endoscopic treatment method that uses a duodenoscope to place a nasobiliary duct into the appropriate part of the bile duct and finally lead it out from one side of the patient's nasal cavity, thereby draining bile from the blocked part or the lesion part of the bile duct to the outside of the body.

[0003] Reference is made to the utility model patent with the authorized patent number CN211461689U to disclose a nasobiliary duct guide; it includes a ring suitable for extending through the patient's mouth to the patient's throat so that the gastric tube traction tube inserted through the patient's nostrils into the patient's throat can be pulled out from the patient's mouth, and an operating handle suitable for handholding; the ring is fixedly connected to the upper end of the operating handle. Beneficial effect: When using the utility model, the relevant operations of endoscopic nasobiliary drainage can be completed quickly for the patient, so that the corresponding operation can save time and effort, so as to greatly reduce the technical operation difficulty of medical staff, and can greatly reduce the operation time and reduce the patient's pain. At the same time, the nasobiliary duct required to be used is still led out and fixed through the patient's nasal cavity, so that it does not affect the patient's mouth eating and language expression, etc., making the utility model reliable and practical to use.

[0004] The above patent has the following defects in use: when the above guide is used to lead out the nasobiliary duct in the patient's mouth, the ring set on the upper end of the guide cannot be tightened, and the size of the ring can only be pre-adjusted and then put into the patient's mouth to connect the nasobiliary duct. If the pre-adjusted ring is too large, it is easy to slip when leading out the nasobiliary duct. If the pre-adjusted ring is too small, it is difficult to connect the bile duct, which increases the difficulty of operation for medical staff. In response to the above problems, we have proposed a nasobiliary duct guide. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and provides a nasobiliary duct guide.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A nasobiliary duct guide device comprises a nasobiliary duct guide rod, the upper end of which is fixedly mounted with a connecting seat, a sliding rod is slidably connected inside the nasobiliary duct guide rod, a guide wire is connected to the sliding rod, and the other end of the guide wire is connected to the connecting seat, a fixing mechanism is arranged at the bottom of the nasobiliary duct guide rod, the fixing mechanism comprises a hexagonal bolt, an internally threaded mounting seat and a movable block, the internally threaded mounting seat is fixedly mounted on the bottom of the nasobiliary duct guide rod, the hexagonal bolt is threadedly mounted on the internally threaded mounting seat, the movable block is rotatably mounted on the side of the hexagonal bolt and the movable block is in sliding contact with the bottom of the nasobiliary duct guide rod, and the nasobiliary duct guide rod is equipped with a placement mechanism.

[0008] Preferably, bolts are provided on the connecting seat.

[0009] Preferably, a wire hole is provided at the upper end of the nasobiliary duct guide rod, and a sliding hole is provided at the lower end of the nasobiliary duct guide rod. The sliding hole coincides with the center position of the wire hole and the sliding hole is communicated with the wire hole.

[0010] Preferably, a mounting seat is fixedly installed at one end of the guide wire, the mounting seat is threadedly installed on the connecting seat by bolts, a screw seat is fixedly installed at the lower end of the guide wire, and the guide wire is slidably installed on the inner side of the wire hole.

[0011] Preferably, the slide rod is slidably installed inside the slide hole, and the upper end of the slide rod is screwed to the screw seat.

[0012] Preferably, a pull ring is connected to the lower end of the slide rod, a limit block is fixedly installed on the side of the slide rod, a slide groove is opened on the inner wall of the slide hole, and the limit block is in sliding contact with the slide groove.

[0013] Preferably, a plurality of limiting grooves are formed on the side wall of the slide bar, and the plurality of limiting grooves are evenly distributed on the side wall of the slide bar.

[0014] Preferably, the inner diameter of the movable block is equal to the outer diameter of the sliding rod, and a plurality of limiting protrusions are evenly distributed and fixedly connected to the inner side of the movable block, and the distribution spacing and cross-sectional dimensions of the limiting protrusions and the limiting grooves are adapted.

[0015] Preferably, the placement mechanism comprises a box body and a box cover, the box cover is sleeved on the box body, a placement groove is installed inside the box body, and a germicidal lamp is installed on the upper side of the placement groove.

[0016] Preferably, the placement slot is a foam clip-on slot, and the sterilization lamp is an ultraviolet sterilization lamp.

[0017] In the utility model, a nasobiliary duct guide is described, through the set slide bar and guide wire, because the slide bar is slidably installed inside the nasobiliary duct guide rod, the extended length of the guide wire at the upper end of the nasobiliary duct guide rod can be adjusted by sliding the slide bar inside the nasobiliary duct guide rod, and the other end of the guide wire is connected to the connecting seat, so the size of the loop of the guide wire on the upper side of the nasobiliary duct guide rod can be adjusted by the slide bar, and at the same time, a fixing mechanism is provided at the lower end of the nasobiliary duct guide rod, and the movable block can be driven to be tightly attached to the side wall of the slide bar by rotating the hexagonal bolt, and the slide bar is slidably limited for use after the guide wire is completed to be sleeved on the nasobiliary duct and locked. The nasobiliary duct is locked in the loop at the upper end of the guide wire, which is convenient for subsequent pulling of the nasobiliary duct guide rod to pull the nasobiliary duct out of the patient's oral cavity, which plays a vital role in the smooth lead-out of the nasobiliary duct and improves the practicality of the utility model.

[0018] In the utility model, the nasobiliary duct guide described in the invention has a placement mechanism and a placement groove as a foam snap-in groove, which plays a snap-in role when the nasobiliary duct guide rod is placed, and also has a certain buffering effect, thereby protecting the nasobiliary duct guide rod. At the same time, the sterilization lamp arranged on the upper side of the placement groove has a sterilization effect on the device, thereby avoiding infection to the patient when using the device, thereby improving the safety of the device.

[0019] The utility model has a reasonable design. Through the provided sliding rod and guide wire, the sliding distance of the sliding adjustment sliding rod inside the nasobiliary guide rod can adjust the loop size of the guide wire on the upper side of the nasobiliary guide rod, thereby realizing the relaxation and tightening operation during the guiding process. At the same time, the provided fixing mechanism is utilized to lock the nasobiliary duct on the upper end of the guide wire, so that the nasobiliary duct can be pulled out of the patient's oral cavity by pulling the nasobiliary guide rod later, which plays a vital role in the smooth leading out of the nasobiliary duct and improves the practicability of the utility model. The provided placement mechanism improves the safety of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a nasobiliary duct guide proposed by the utility model;

[0021] Figure 2 A schematic diagram of the three-dimensional disassembly structure of a nasobiliary duct guide proposed in the utility model Figure 1 ;

[0022] Figure 3 A schematic diagram of the three-dimensional disassembly structure of a nasobiliary duct guide proposed in the utility model Figure 2 ;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of a placement mechanism of a nasobiliary duct guide proposed by the utility model;

[0024] Figure 5 This is a three-dimensional split structural schematic diagram of a placement mechanism of a nasobiliary duct guide proposed by the utility model;

[0025] Figure 6 for Figure 2 The enlarged schematic diagram of part A in the middle;

[0026] Figure 7 for Figure 3 Enlarged schematic diagram of part B in the middle.

[0027] In the figure: 1. nasobiliary duct guide rod; 11. sliding hole; 12. sliding groove; 13. wire hole; 2. sliding rod; 21. limiting block; 22. pull ring; 23. limiting groove; 3. connecting seat; 31. bolt; 4. guide wire; 41. mounting seat; 42. screw seat; 5. fixing mechanism; 51. hexagonal bolt; 52. internal thread mounting seat; 53. movable block; 54. limiting protrusion; 6. placement mechanism; 61. box body; 62. box cover; 63. placement groove; 64. germicidal lamp. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-7 A nasobiliary duct guide comprises a nasobiliary duct guide rod 1, a connecting seat 3 is fixedly installed on the upper end of the nasobiliary duct guide rod 1, a bolt 31 is arranged on the connecting seat 3, a sliding rod 2 is slidably connected inside the nasobiliary duct guide rod 1, a guide wire 4 is connected to the sliding rod 2, and the other end of the guide wire 4 is connected to the connecting seat 3, a fixing mechanism 5 is arranged at the bottom of the nasobiliary duct guide rod 1, the fixing mechanism 5 comprises a hexagonal bolt 51, an internally threaded mounting seat 52 and a movable block 53, the internally threaded mounting seat 52 is fixedly installed at the bottom of the nasobiliary duct guide rod 1, the hexagonal bolt 51 is threadedly installed on the internally threaded mounting seat 52, the movable block 53 is rotatably installed on the side of the hexagonal bolt 51 and the movable block 53 is in sliding contact with the bottom of the nasobiliary duct guide rod 1, and the nasobiliary duct guide rod 1 is equipped with a placement mechanism 6.

[0030] Through the above structure, the adjustment slide bar 2 slides inside the nasobiliary guide rod 1, and the protruding length of the guide wire 4 at the upper end of the nasobiliary guide rod 1 can be adjusted. The other end of the guide wire 4 is connected to the connecting seat 3, and the size of the loop of the guide wire 4 on the upper side of the nasobiliary guide rod 1 can be adjusted by the slide bar 2. By rotating the hexagonal bolt 51, the movable block 53 can be driven to fit tightly against the side wall of the slide bar 2, and the slide bar 2 is slidably limited for use in locking and closing the nasobiliary after the guide wire 4 is connected to the nasobiliary. The nasobiliary is locked in the loop at the upper end of the guide wire 4, which is convenient for the subsequent pulling of the nasobiliary guide rod 1 to pull the nasobiliary out of the patient's mouth, which plays a vital role in the smooth lead-out of the nasobiliary.

[0031] In this embodiment, a wire hole 13 is formed at the upper end of the nasobiliary duct guide rod 1 , and a sliding hole 11 is formed at the lower end of the nasobiliary duct guide rod 1 . The sliding hole 11 coincides with the center position of the wire hole 13 and is connected to the wire hole 13 .

[0032] Through the above structure, the center positions of the wire hole 13 and the sliding hole 11 are overlapped, so that when the sliding rod 2 is pulled, the force center lines are consistent, which facilitates pulling the sliding rod 2 to drive the guide wire 4, making the adjustment process more labor-saving and convenient for medical staff to operate.

[0033] In this embodiment, a mounting seat 41 is fixedly installed at one end of the guide wire 4, and the mounting seat 41 is screwed on the connecting seat 3 by a bolt 31. A screw seat 42 is fixedly installed at the lower end of the guide wire 4. The guide wire 4 is slidably installed on the inner side of the wire hole 13, and the slide rod 2 is slidably installed on the inner side of the slide hole 11. The upper end of the slide rod 2 is screwed with the screw seat 42.

[0034] Through the above structure, through the screw connection installation of the mounting seat 41 and the connecting seat 3 and the screw connection installation of the screw seat 42 and the upper end of the slide rod 2, the guide wire 4 can be disassembled to be separated from the main structure, which is convenient for the later installation and replacement of the guide wire 4 and improves practicality.

[0035] In this embodiment, a pull ring 22 is connected to the lower end of the slide bar 2, a limit block 21 is fixedly installed on the side of the slide bar 2, a slide groove 12 is opened on the inner wall of the slide hole 11, and the limit block 21 is in sliding contact with the slide groove 12.

[0036] In this embodiment, a plurality of limit grooves 23 are opened on the side wall of the slide bar 2, and the limit grooves 23 are evenly distributed on the side wall of the slide bar 2. The inner diameter of the movable block 53 is equal to the outer diameter of the slide bar 2. A plurality of limit protrusions 54 are evenly fixedly connected to the inner side of the movable block 53. The distribution spacing and cross-sectional dimensions of the limit protrusions 54 are adapted to the limit grooves 23.

[0037] Through the above structure, the rotational freedom between the slide bar 2 and the slide hole 11 is restricted, so that the limit groove 23 on the side of the slide bar 2 always remains corresponding to the fixing mechanism 5. When the hexagonal bolt 51 is adjusted to drive the movable block 53 to approach the slide bar 2, the limit protrusion on the inner side of the movable block 53 can be smoothly engaged with the inner side of the limit groove 23 to limit the sliding of the slide bar 2.

[0038] In this embodiment, the placement mechanism 6 includes a box body 61 and a box cover 62. The box cover 62 is sleeved on the box body 61. A placement groove 63 is installed on the inner side of the box body 61. The placement groove 63 is a foam clip groove. A sterilization lamp 64 is installed on the upper side of the placement groove 63. The sterilization lamp 64 is an ultraviolet sterilization lamp.

[0039] Through the above structure, the placement groove 63 is set as a foam clamping groove, which plays a clamping role when the nasobiliary guide rod 1 is contained, and also has a certain buffering effect, which protects the nasobiliary guide rod 1. At the same time, the sterilization lamp 64 arranged on the upper side of the placement groove 63 has a sterilization effect on the device, avoiding infection to the patient when using the device, thereby improving the safety of the device.

[0040] The nasobiliary duct is then tightened to the upper end of the guide wire 4 by rotating the hexagonal bolt 51, and the limiting protrusion 54 on the inner side of the movable block 53 is engaged with the limiting groove 23 on the side wall of the slide bar 2, which limits the slide bar 2. At this time, the nasobiliary duct is firmly locked to the upper end of the guide wire 4. Then, the bottom of the nasobiliary duct guide rod 1 is held by the hand to pull the nasobiliary duct tightened at the upper end of the nasobiliary duct guide rod 1 out of the patient's oral cavity. The above is the working process and principle of the utility model. The utility model realizes the sliding adjustment of the slide bar 2 and the guide wire 4 inside the nasobiliary guide rod 1. The sliding distance of the slide bar 2 can adjust the loop size of the guide wire 4 on the upper side of the nasobiliary guide rod 1, realizing the relaxation and tightening operation during the guiding process. At the same time, the fixing mechanism 5 is used to lock the nasobiliary duct on the upper end of the guide wire 4, which is convenient for the subsequent pulling of the nasobiliary guide rod 1 to pull the nasobiliary duct out of the patient's oral cavity, which plays a vital role in the smooth leading out of the nasobiliary duct and improves the practicality of the utility model. The placement mechanism 6 is provided to improve the safety of the use of the device.

[0041] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A nasobiliary duct guide, characterized in that: The invention comprises a nasobiliary guide rod (1), wherein a connecting seat (3) is fixedly mounted on the upper end of the nasobiliary guide rod (1), a sliding rod (2) is slidably connected inside the nasobiliary guide rod (1), a guide wire (4) is connected to the sliding rod (2), and the other end of the guide wire (4) is connected to the connecting seat (3), and a fixing mechanism (5) is arranged at the bottom of the nasobiliary guide rod (1), wherein the fixing mechanism (5) comprises a hexagonal bolt (51), an internally threaded mounting seat (52) and a movable block (53), wherein the internally threaded mounting seat (52) is fixedly mounted on the bottom of the nasobiliary guide rod (1), the hexagonal bolt (51) is threadedly mounted on the internally threaded mounting seat (52), the movable block (53) is rotatably mounted on the side of the hexagonal bolt (51) and the movable block (53) is in sliding contact with the bottom of the nasobiliary guide rod (1), and the nasobiliary guide rod (1) is matched with a placement mechanism (6).

2. A nasobiliary duct guide according to claim 1, characterized in that: The connection seat (3) is provided with bolts (31).

3. A nasobiliary duct guide according to claim 1, characterized in that: The upper end of the nasobiliary guide rod (1) is provided with a wire hole (13), and the lower end of the nasobiliary guide rod (1) is provided with a sliding hole (11), the sliding hole (11) and the center position of the wire hole (13) coincide with each other, and the sliding hole (11) and the wire hole (13) are connected.

4. A nasobiliary duct guide according to claim 1, characterized in that: A mounting seat (41) is fixedly mounted on one end of the guide wire (4), and the mounting seat (41) is screwed onto the connecting seat (3) via a bolt (31). A screw seat (42) is fixedly mounted on the lower end of the guide wire (4), and the guide wire (4) is slidably mounted on the inner side of the wire hole (13).

5. The nasobiliary duct guide according to claim 1, characterized in that: The slide rod (2) is slidably mounted inside the slide hole (11), and the upper end of the slide rod (2) is screwed to the screw seat (42).

6. A nasobiliary duct guide according to claim 3, characterized in that: The lower end of the slide rod (2) is connected to a pull ring (22), a limit block (21) is fixedly installed on the side of the slide rod (2), a slide groove (12) is opened on the inner wall of the slide hole (11), and the limit block (21) is in sliding contact with the slide groove (12).

7. The nasobiliary duct guide according to claim 1, characterized in that: A plurality of limiting grooves (23) are provided on the side wall of the slide bar (2), and the plurality of limiting grooves (23) are evenly distributed on the side wall of the slide bar (2).

8. The nasobiliary duct guide according to claim 1, characterized in that: The inner diameter of the movable block (53) is equal to the outer diameter of the sliding rod (2); a plurality of limiting protrusions (54) are evenly distributed and fixedly connected to the inner side of the movable block (53); and the distribution spacing and cross-sectional dimensions of the limiting protrusions (54) and the limiting grooves (23) are compatible.

9. The nasobiliary duct guide according to claim 1, characterized in that: The placement mechanism (6) comprises a box body (61) and a box cover (62), wherein the box cover (62) is sleeved on the box body (61), a placement groove (63) is installed on the inner side of the box body (61), and a germicidal lamp (64) is installed on the upper side of the placement groove (63).

10. The nasobiliary duct guide according to claim 9, characterized in that: The placement groove (63) is a foam clamping groove, and the sterilization lamp (64) is an ultraviolet sterilization lamp.

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