Nasobiliary duct in-vitro fixing device

Abstract

The invention relates to the technical field of nasobiliary ducts, and discloses a nasobiliary duct in-vitro fixing device which is characterized in that a first arc-shaped groove is formed in the top of a connecting block, a second arc-shaped groove is formed in the bottom of the connecting block, a first adjusting mechanism is arranged in the connecting block, and a second adjusting mechanism is arranged on the front face of the connecting block; the first adjusting mechanism comprises sliding assemblies and limiting assemblies, the sliding assemblies are arranged on the left side and the right side in the connecting block, the limiting assemblies are arranged on the left side and the right side of the connecting block, the second adjusting mechanism comprises a position changing assembly and a fixing assembly, and the position changing assembly is arranged on the front face of the connecting block. The fixing assembly is arranged on the front face of the transposition assembly. A fixing block is moved through a second adjusting mechanism, so that the nasobiliary duct moves left and right, the nasobiliary duct can be adjusted left and right according to the nostril of a patient, after the fixing block is adjusted, the nasobiliary duct is inserted into a fourth connecting hole, and after insertion, the nasobiliary duct is fixed through the elastic force of a third spring.

Description

Technical Field

[0001] This invention relates to the field of nasobiliary duct technology, specifically to an external fixation device for the nasobiliary duct. Background Technology

[0002] Endoscopic nasobiliary drainage is currently used for biliary obstruction caused by various benign and malignant biliary and pancreatic diseases, reducing infection and the occurrence of postoperative pancreatitis, thereby achieving decompression, biliary drainage, jaundice reduction, and inflammation elimination. This technique involves placing a tube in the bile duct and draining it outside the body through the nasal cavity. Currently, there are no corresponding fixation products for the exited nasobiliary tube; it is only fixed with adhesive tape. The nasobiliary tube is relatively thin and rigid, making clinical fixation difficult. Currently, V-shaped nasal strips are used to fix the nasal tube, and the remaining tube is secured by wrapping it around the ear and face. The nasal strips are changed every two days, or immediately when they become damp or loose. This process is extremely inconvenient in clinical practice, resulting in significant time waste and reduced work efficiency.

[0003] According to patent CN 213252392 U, a nasobiliary duct fixing device includes a nasobiliary duct buckle, a fixing component, a hanging rope component, and a buffer pad. The nasobiliary duct buckle is movably installed in a groove provided on the fixing component, the buffer pad is fixedly installed on the fixing component, and there are two hanging rope components, which are respectively installed in grooves provided on both sides of the fixing component.

[0004] This patented nasobiliary duct clip can effectively fix nasobiliary ducts of different sizes, ensuring that the nasobiliary ducts will not be removed unplanned. However, the fixing components of this patent cannot be moved, and can only insert the tube into one nasal cavity of the patient. It cannot treat different nasal cavities according to different patient conditions. Summary of the Invention

[0005] The purpose of this invention is to provide an external fixation device for the nasobiliary duct to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an external fixation device for the nasobiliary duct, comprising a connecting block, wherein a first arc-shaped groove is provided on the top of the connecting block, a second arc-shaped groove is provided on the bottom of the connecting block, a first adjustment mechanism is provided inside the connecting block, and a second adjustment mechanism is provided on the front of the connecting block;

[0007] The first adjustment mechanism includes a sliding component and a limiting component. The sliding component is disposed on the left and right sides inside the connecting block, and the limiting component is disposed on the left and right sides of the connecting block.

[0008] The second adjustment mechanism includes a shifting component and a fixing component. The shifting component is disposed on the front side of the connecting block, and the fixing component is disposed on the front side of the shifting component.

[0009] Preferably, the sliding component includes a circular groove, which is formed on the left and right sides of the connecting block. A connecting shaft is fixedly connected in the circular groove, and a placement wheel is fixedly connected to the surface of the connecting shaft. A first connecting hole is formed on the left and right sides of the connecting block near the bottom, and a second connecting hole is symmetrically formed on the left and right sides of the connecting block. An elastic rope is fixedly connected on the left and right sides of the connecting block near the top.

[0010] Preferably, one end of the first connecting hole extends into the circular groove, and the top end of the second connecting hole extends into the circular groove, with the elastic cord located on the surface of the placement wheel. The length of the elastic cord can be adjusted by pulling one end of the elastic cord, allowing for adjustment according to different patients.

[0011] Preferably, the limiting component includes a first rectangular groove, which is symmetrically opened on the left and right sides of the connecting block. The connecting block has first sliding grooves symmetrically opened on the left and right sides. A first sliding block is slidably connected in the first sliding groove. A third arc-shaped groove is opened at the bottom of the first sliding block. A second sliding block is slidably connected in the first rectangular groove. A driving block is fixedly connected to the side of the second sliding block away from the first sliding groove. A first spring is fixedly connected to the top of the first sliding block.

[0012] Preferably, the bottom of the first groove extends into the first connecting hole, the first rectangular groove communicates with the first groove, the top of the first spring is fixedly connected to the top of the first groove, and the first sliding block moves downward by the elastic force of the first spring, thereby squeezing the elastic rope and fixing the elastic rope.

[0013] Preferably, the repositioning component includes a T-slot, which is formed on the front of the connecting block. A T-block is slidably connected in the T-slot. A third connecting hole is formed on the top of the T-block. A second spring is fixedly connected to the bottom of the third connecting hole. A fixing ball is fixedly connected to the top of the second spring. A fixing hole is formed on the top of the T-slot.

[0014] Preferably, the diameter of the fixed ball is smaller than the diameter of the third connecting hole, the fixed ball is located inside the third connecting hole, the diameter of the third connecting hole is equal to the diameter of the fixed hole, and the T-shaped block slides in the T-shaped groove, so that the nasobiliary tube can move left and right according to the patient's condition.

[0015] Preferably, there are five sets of fixing holes, which are arranged in an array at the top of the T-shaped groove. The fixing ball is ejected into the corresponding fixing hole by the elastic force of the second spring to fix the T-shaped block.

[0016] Preferably, the fixing component includes a fixing block, which is fixedly connected to the front of the T-shaped block. The top of the fixing block has a fourth connecting hole. The right side of the front of the fixing block has a second rectangular groove. The right side of the fixing block has a second sliding groove. An insert block is slidably connected in the second sliding groove. A pull plate is fixedly connected to the right side of the insert block. A sliding plate is fixedly connected to the surface of the insert block. A third spring is fixedly connected to the right side of the sliding plate.

[0017] Preferably, the right side of the second groove extends into the fourth connecting hole, the sliding plate is slidably connected to the second rectangular groove, and the right end of the third spring is fixedly connected to the right side of the second rectangular groove. When the nasobiliary tube is inserted into the fourth connecting hole, the left end of the insertion block uses the elastic force of the third spring to squeeze the nasobiliary tube, thereby fixing the nasobiliary tube and preventing it from loosening.

[0018] Compared with the prior art, the present invention provides an external fixation device for the nasobiliary duct, which has the following beneficial effects:

[0019] 1. The external fixation device for the nasobiliary duct uses a first adjustment mechanism to adjust the length of the elastic rope, making it suitable for different patients and with a wide range of applications. After the length of the elastic rope is adjusted, the elastic force of the first spring is used to move the first sliding block downward, so that its bottom end squeezes the elastic rope to fix it and prevent the elastic rope from loosening, thus making the nasobiliary duct unstable in the patient's nasal cavity.

[0020] 2. This external fixation device for the nasobiliary duct moves the fixing block through the second adjustment mechanism, thereby moving the nasobiliary duct left and right. It can adjust the nasobiliary duct left and right according to the patient's nostrils. After the fixing block is adjusted, the nasobiliary duct is inserted into the fourth connecting hole. After insertion, the nasobiliary duct is fixed by the elastic force of the third spring. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0022] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the sliding component of the present invention;

[0024] Figure 3 This is a schematic diagram of the structural limiting component of the present invention;

[0025] Figure 4This is a schematic diagram of the structural transposition component of the present invention;

[0026] Figure 5 This is a front cross-sectional view of the structural transposition component of the present invention;

[0027] Figure 6 This is a schematic diagram of the structural fixing component of the present invention;

[0028] Figure 7 This is a front planar view of the fixing block of the present invention.

[0029] In the diagram: 1. Connecting block; 2. First arc-shaped groove; 3. Second arc-shaped groove; 4. First adjusting mechanism; 41. Sliding assembly; 411. Circular groove; 412. Connecting shaft; 413. Placement wheel; 414. First connecting hole; 415. Second connecting hole; 416. Elastic rope; 42. Limiting assembly; 421. First rectangular groove; 422. First sliding groove; 423. First sliding block; 424. Third arc-shaped groove; 425. First spring; 426. Second... 427. Sliding block; 5. Driving block; 6. Second adjusting mechanism; 7. Repositioning component; 8. T-slot; 9. T-block; 10. Third connecting hole; 11. Second spring; 12. Fixed ball; 13. Fixed hole; 14. Fixed component; 15. Fixed block; 16. Fixed hole; 17. Fixed component; 18. Fixed block; 19. Fourth connecting hole; 20. Second rectangular groove; 20. Second sliding groove; 21. Insert block; 22. Pull plate; 23. Sliding plate; 24. Third spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] This invention provides the following technical solutions:

[0033] Example 1

[0034] Please see Figure 1-3 An external fixation device for the nasobiliary duct includes a connecting block 1, a first arc-shaped groove 2 on the top of the connecting block 1, a second arc-shaped groove 3 on the bottom of the connecting block 1, a first adjustment mechanism 4 inside the connecting block 1, and a second adjustment mechanism 5 on the front of the connecting block 1.

[0035] The first adjustment mechanism 4 includes a sliding component 41 and a limiting component 42. The sliding component 41 is disposed on the left and right sides inside the connecting block 1, and the limiting component 42 is disposed on the left and right sides of the connecting block 1.

[0036] The sliding component 41 includes a circular groove 411, which is opened on the left and right sides of the connecting block 1. A connecting shaft 412 is fixedly connected in the circular groove 411. A placement wheel 413 is fixedly connected to the surface of the connecting shaft 412. A first connecting hole 414 is opened on the left and right sides of the connecting block 1 near the bottom. A second connecting hole 415 is symmetrically opened on the left and right sides of the connecting block 1. An elastic rope 416 is fixedly connected on the left and right sides of the connecting block 1 near the top.

[0037] One end of the first connecting hole 414 extends into the circular groove 411, and the top end of the second connecting hole 415 extends into the circular groove 411. The elastic rope 416 is located on the surface of the placement wheel 413. The length of the elastic rope 416 can be adjusted by pulling one end of the elastic rope 416, which can be adjusted according to different patients.

[0038] The limiting component 42 includes a first rectangular groove 421, which is symmetrically opened on the left and right sides of the connecting block 1. A first sliding groove 422 is symmetrically opened on the left and right sides of the connecting block 1. A first sliding block 423 is slidably connected in the first sliding groove 422. A third arc-shaped groove 424 is opened at the bottom of the first sliding block 423. A second sliding block 426 is slidably connected in the first rectangular groove 421. A driving block 427 is fixedly connected to the side of the second sliding block 426 away from the first sliding groove 422. A first spring 425 is fixedly connected to the top of the first sliding block 423.

[0039] The bottom of the first groove 422 extends into the first connecting hole 414. The first rectangular groove 421 communicates with the first groove 422. The top of the first spring 425 is fixedly connected to the top of the first groove 422. The first sliding block 423 moves downward by the elastic force of the first spring 425, thereby squeezing and fixing the elastic rope 416. Elastic ropes 416 are fixedly connected to the left and right sides of the connecting block 1 near the top. Circular grooves 411 are formed on the left and right sides of the connecting block 1. A connecting shaft 412 is fixedly connected in the circular groove 411. 2. A placement wheel 413 is fixedly connected to the surface. First connecting holes 414 are opened on the left and right sides near the bottom of the connecting block 1. Second connecting holes 415 are symmetrically opened on the left and right sides of the connecting block 1. One end of the first connecting hole 414 passes through the circular groove 411, and the top end of the second connecting hole 415 passes through the circular groove 411. Pulling the bottom end of the elastic rope 416 changes its length, making it suitable for different patients. First rectangular grooves 421 are symmetrically opened on the left and right sides of the connecting block 1. First sliding grooves 422 are symmetrically opened on the left and right sides of the connecting block 1. A sliding groove 422 extends through the bottom into the first connecting hole 414. A first rectangular groove 421 communicates with the first sliding groove 422. A first sliding block 423 is slidably connected within the first sliding groove 422. A third arc-shaped groove 424 is formed at the bottom of the first sliding block 423. A second sliding block 426 is slidably connected within the first rectangular groove 421. A driving block 427 is fixedly connected to the side of the second sliding block 426 away from the first sliding groove 422. A first spring 425 is fixedly connected to the top of the first sliding block 423. The top of the first spring 425 is fixedly connected to the top of the first sliding groove 422. The first sliding block 423 moves downward under the elastic force of the first spring 425, thereby squeezing and fixing the elastic rope 416. The first adjusting mechanism 4 adjusts the length of the elastic rope 416, which can be suitable for different patients and has a wide range of applications. After the length of the elastic rope is adjusted, the elastic force of the first spring 425 is used to move the first sliding block 423 downward, so that its bottom end squeezes the elastic rope 416 and fixes the elastic rope 416, preventing the elastic rope 416 from loosening and thus making the nasobiliary duct unstable in the patient's nasal cavity.

[0040] Example 2

[0041] Please see Figure 4-7 Furthermore, based on Embodiment 1, the second adjustment mechanism 5 includes a shifting component 51 and a fixing component 52. The shifting component 51 is disposed on the front side of the connecting block 1, and the fixing component 52 is disposed on the front side of the shifting component 51.

[0042] The transposition component 51 includes a T-slot 511, which is formed on the front of the connecting block 1. A T-block 512 is slidably connected inside the T-slot 511. A third connecting hole 513 is formed at the top of the T-block 512. A second spring 514 is fixedly connected to the bottom of the third connecting hole 513. A fixing ball 515 is fixedly connected to the top of the second spring 514. A fixing hole 516 is formed at the top of the T-slot 511.

[0043] The diameter of the fixed ball 515 is smaller than the diameter of the third connecting hole 513. The fixed ball 515 is located inside the third connecting hole 513. The diameter of the third connecting hole 513 is equal to the diameter of the fixed hole 516. The T-shaped block 512 slides in the T-shaped groove 511, so that the nasobiliary duct can move left and right according to the patient's condition.

[0044] There are five sets of fixing holes 516, which are arranged in an array at the top of the T-slot 511. The fixing ball 515 is pushed into the corresponding fixing hole 516 by the elastic force of the second spring 514 to fix the T-block 512.

[0045] The fixing component 52 includes a fixing block 521, which is fixedly connected to the front of the T-shaped block 512. A fourth connecting hole 522 is provided on the top of the fixing block 521. A second rectangular groove 523 is provided on the right side of the front of the fixing block 521. A second sliding groove 524 is provided on the right side of the fixing block 521. An insert block 525 is slidably connected in the second sliding groove 524. A pull plate 526 is fixedly connected to the right side of the insert block 525. A sliding plate 527 is fixedly connected to the surface of the insert block 525. A third spring 528 is fixedly connected to the right side of the sliding plate 527.

[0046] The second groove 524 extends through the fourth connecting hole 522 on the right side. The sliding plate 527 is slidably connected to the second rectangular groove 523. The right end of the third spring 528 is fixedly connected to the right side of the second rectangular groove 523. The nasobiliary tube is inserted into the fourth connecting hole 522. The left end of the insertion block 525 uses the elastic force of the third spring 528 to squeeze the nasobiliary tube, thus fixing it and preventing it from loosening. A T-shaped groove 511 is formed on the front of the connecting block 1. A T-shaped block 512 is slidably connected in the T-shaped groove 511. 2. A third connecting hole 513 is provided at the top. A second spring 514 is fixedly connected to the bottom end of the third connecting hole 513. A fixing ball 515 is fixedly connected to the top end of the second spring 514. A fixing hole 516 is provided at the top of the T-shaped groove 511. The T-shaped block 512 slides in the T-shaped groove 511, allowing the nasobiliary duct to move left and right according to the patient's condition. The fixing ball 515 is ejected into the corresponding fixing hole 516 by the elastic force of the second spring 514, fixing the T-shaped block 512. The fixing block 521 is fixedly connected. Attached to the front of the T-block 512, the top of the fixing block 521 has a fourth connecting hole 522. A second rectangular groove 523 is formed on the right side of the front of the fixing block 521. A second sliding groove 524 is formed on the right side of the fixing block 521, extending through the fourth connecting hole 522 on the right side. An insert block 525 is slidably connected within the second sliding groove 524. A pull plate 526 is fixedly connected to the right side of the insert block 525. A sliding plate 527 is fixedly connected to the surface of the insert block 525, and a third spring 52 is fixedly connected to the right side of the sliding plate 527. 8. Insert the nasobiliary tube into the fourth connecting hole 522. The left end of the insertion block 525 uses the elastic force of the third spring 528 to squeeze the nasobiliary tube, thus fixing it and preventing it from loosening. The second adjustment mechanism 5 moves the fixing block 521, thereby moving the nasobiliary tube left and right. This allows for left and right adjustment of the nasobiliary tube according to the patient's nostrils. After adjusting the fixing block 521, insert the nasobiliary tube into the fourth connecting hole 522. After insertion, the nasobiliary tube will be fixed by the elastic force of the third spring 528.

[0047] In actual operation, when this device is used, elastic ropes 416 are fixedly connected to the left and right sides of the connecting block 1 near the top. Circular grooves 411 are opened on the left and right sides of the connecting block 1, and a connecting shaft 412 is fixedly connected inside the circular grooves 411. A placement wheel 413 is fixedly connected to the surface of the connecting shaft 412. First connecting holes 414 are opened on the left and right sides of the connecting block 1 near the bottom, and second connecting holes 415 are symmetrically opened on the left and right sides of the connecting block 1. One end of the first connecting hole 414 passes through the circular groove 411, and the top end of the second connecting hole 415 passes through the circular groove 411. Pulling the bottom end of the elastic rope 416 changes its length, making it suitable for different patients. First rectangular grooves 421 are symmetrically opened on the left and right sides of the connecting block 1. First sliding grooves 422 are symmetrically opened on the left and right sides of the connecting block 1. The bottom of the first sliding groove 422 passes through the first connecting hole 414. The first rectangular groove 421 and the first sliding groove 422 are interconnected, and sliding occurs within the first sliding groove 422. A first sliding block 423 is connected, and a third arc-shaped groove 424 is opened at the bottom of the first sliding block 423. A second sliding block 426 is slidably connected in the first rectangular groove 421. A driving block 427 is fixedly connected to the side of the second sliding block 426 away from the first groove 422. A first spring 425 is fixedly connected to the top of the first sliding block 423. The top of the first spring 425 is fixedly connected to the top of the first groove 422. The first sliding block 423 moves downward by the elastic force of the first spring 425, thereby squeezing and fixing the elastic rope 416. The first adjustment mechanism 4 adjusts the length of the elastic rope 416, which can be suitable for different patients and has a wide range of applications. After the length of the elastic rope is adjusted, the elastic force of the first spring 425 is used to move the first sliding block 423 downward, so that its bottom end squeezes the elastic rope 416 and fixes the elastic rope 416, preventing the elastic rope 416 from loosening and thus making the nasobiliary duct unstable in the patient's nasal cavity.

[0048] A T-shaped groove 511 is formed on the front of the connecting block 1. A T-shaped block 512 is slidably connected within the T-shaped groove 511. A third connecting hole 513 is formed on the top of the T-shaped block 512. A second spring 514 is fixedly connected to the bottom end of the third connecting hole 513. A fixing ball 515 is fixedly connected to the top end of the second spring 514. A fixing hole 516 is formed on the top of the T-shaped groove 511. The T-shaped block 512 slides within the T-shaped groove 511, allowing the nasobiliary duct to move left and right according to the patient's condition. The fixing ball 515 is springed into the corresponding fixing hole 516 by the elastic force of the second spring 514, fixing the T-shaped block 512. A fixing block 521 is fixedly connected to the front of the T-shaped block 512. A fourth connecting hole 522 is formed on the top of the fixing block 521. A second rectangular groove 523 is formed on the right side of the front of the fixing block 521. A fixing hole 522 is formed on the right side of the fixing block 521. The second slide groove 524 extends through the fourth connecting hole 522 on its right side. An insert block 525 is slidably connected within the second slide groove 524. A pull plate 526 is fixedly connected to the right side of the insert block 525. A sliding plate 527 is fixedly connected to the surface of the insert block 525. A third spring 528 is fixedly connected to the right side of the sliding plate 527. When the nasobiliary tube is inserted into the fourth connecting hole 522, the left end of the insert block 525 is compressed by the elastic force of the third spring 528 to fix the nasobiliary tube and prevent it from loosening. The second adjusting mechanism 5 moves the fixing block 521, thereby moving the nasobiliary tube left and right. This allows for left and right adjustment of the nasobiliary tube according to the patient's nostrils. After the fixing block 521 is adjusted, the nasobiliary tube is inserted into the fourth connecting hole 522. After insertion, the nasobiliary tube is fixed by the elastic force of the third spring 528.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An external fixation device for the nasobiliary duct, comprising a connecting block (1), characterized in that: The connecting block (1) has a first arc-shaped groove (2) at the top and a second arc-shaped groove (3) at the bottom. The connecting block (1) is provided with a first adjustment mechanism (4) inside and a second adjustment mechanism (5) on the front of the connecting block (1). The first adjustment mechanism (4) includes a sliding component (41) and a limiting component (42). The sliding component (41) is disposed on the left and right sides inside the connecting block (1), and the limiting component (42) is disposed on the left and right sides of the connecting block (1). The second adjustment mechanism (5) includes a shifting component (51) and a fixing component (52). The shifting component (51) is disposed on the front of the connecting block (1), and the fixing component (52) is disposed on the front of the shifting component (51).

2. The external fixation device for the nasobiliary duct according to claim 1, characterized in that: The sliding component (41) includes a circular groove (411) which is opened on the left and right sides of the connecting block (1). A connecting shaft (412) is fixedly connected in the circular groove (411). A placement wheel (413) is fixedly connected to the surface of the connecting shaft (412). A first connecting hole (414) is opened on the left and right sides of the connecting block (1) near the bottom. A second connecting hole (415) is symmetrically opened on the left and right sides of the connecting block (1). An elastic rope (416) is fixedly connected on the left and right sides of the connecting block (1) near the top.

3. The external fixation device for the nasobiliary duct according to claim 2, characterized in that: One end of the first connecting hole (414) extends into the circular groove (411), the top end of the second connecting hole (415) extends into the circular groove (411), and the elastic rope (416) is located on the surface of the placement wheel (413).

4. The external fixation device for the nasobiliary duct according to claim 1, characterized in that: The limiting component (42) includes a first rectangular groove (421), which is symmetrically opened on the left and right sides of the connecting block (1). The connecting block (1) is symmetrically opened on the left and right sides with first sliding grooves (422). A first sliding block (423) is slidably connected in the first sliding groove (422). A third arc-shaped groove (424) is opened at the bottom of the first sliding block (423). A second sliding block (426) is slidably connected in the first rectangular groove (421). A driving block (427) is fixedly connected to the side of the second sliding block (426) away from the first sliding groove (422). A first spring (425) is fixedly connected to the top of the first sliding block (423).

5. The external fixation device for the nasobiliary duct according to claim 4, characterized in that: The bottom of the first groove (422) extends into the first connecting hole (414), the first rectangular groove (421) is in communication with the first groove (422), and the top of the first spring (425) is fixedly connected to the top of the first groove (422).

6. The external fixation device for the nasobiliary duct according to claim 1, characterized in that: The transposition component (51) includes a T-slot (511), which is located on the front of the connecting block (1). A T-block (512) is slidably connected inside the T-slot (511). A third connecting hole (513) is provided at the top of the T-block (512). A second spring (514) is fixedly connected to the bottom of the third connecting hole (513). A fixing ball (515) is fixedly connected to the top of the second spring (514). A fixing hole (516) is provided at the top of the T-slot (511).

7. The external fixation device for the nasobiliary duct according to claim 6, characterized in that: The diameter of the fixed ball (515) is smaller than the diameter of the third connecting hole (513), the fixed ball (515) is located inside the third connecting hole (513), and the diameter of the third connecting hole (513) is equal to the diameter of the fixed hole (516).

8. The external fixation device for the nasobiliary duct according to claim 7, characterized in that: There are five sets of fixing holes (516), which are arranged in an array at the top of the T-slot (511).

9. The external fixation device for the nasobiliary duct according to claim 1, characterized in that: The fixing component (52) includes a fixing block (521), which is fixedly connected to the front of the T-shaped block (512). The fixing block (521) has a fourth connecting hole (522) on its top. The fixing block (521) has a second rectangular groove (523) on the right side of its front. The fixing block (521) has a second sliding groove (524) on its right side. An insert (525) is slidably connected in the second sliding groove (524). A pull plate (526) is fixedly connected to the right side of the insert (525). A sliding plate (527) is fixedly connected to the surface of the insert (525). A third spring (528) is fixedly connected to the right side of the sliding plate (527).

10. The external fixation device for the nasobiliary duct according to claim 9, characterized in that: The second groove (524) extends through the fourth connecting hole (522) on the right side, the sliding plate (527) is slidably connected in the second rectangular groove (523), and the right end of the third spring (528) is fixedly connected to the right side of the second rectangular groove (523).

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