Tip cap of digestive endoscope

Abstract

The invention relates to the technical field of tip caps, in particular to a tip cap of a digestive endoscopy, which comprises an endoscope lens, an auxiliary tube is fixedly arranged on one side of the endoscope lens, the height of the auxiliary tube is lower than that of the endoscope lens, an inner sleeve is mounted on the outer surface of the endoscope lens in an inserting manner, and the inner sleeve is sleeved on the outer surface of the endoscope lens. An outer soft end cap is installed outside the inner sleeve in an inserted mode, and a buckle extrusion mechanism is arranged between the outer soft end cap and the inner sleeve. According to the tip cap of the digestive endoscope, when the tip cap is installed, the inner sleeve needs to be inserted into the endoscope head in advance, the inner plastic sleeve is inserted into the inner sleeve, the inner sleeve can be extruded and deformed by the inner plastic sleeve, the anti-skid tooth points can be inserted into the outer surface of the endoscope head so as to increase firmness, and the positioning teeth and the inner plastic sleeve are clamped so that the tip cap can be installed conveniently. The inner sleeve and the inner plastic sleeve can be fixed together, the outer soft end cap can be firmly fixed to the outer surface of the endoscope head, and the possibility that the outer soft end cap falls off in the using process is reduced.

Description

Technical Field

[0001] This invention patent relates to the field of tip cap technology, specifically a tip cap for a digestive endoscope. Background Technology

[0002] With advancements in medical technology and the continuous upgrading of diagnostic instruments, doctors have more methods for operation and treatment. However, current applications of digestive endoscopy present several limitations. Existing digestive endoscopes typically require a cap to be fitted at the top to provide a wider field of view and prevent the lens from pressing too closely against internal organs, thus ensuring visualization. However, the cap is usually simply wrapped around the outer surface of the endoscope, making it prone to falling off due to the use of auxiliary instruments, endoscope bending, or intestinal peristalsis. Furthermore, with multi-path endoscopes, the use of auxiliary instruments, especially those that cannot steer independently, can lead to jamming and deviation from the preset path. This not only affects operational accuracy but also increases the risk of gastrointestinal mucosal damage. Therefore, it fails to meet clinical needs for precise control, safety, and cap detachment in digestive endoscopy, making it inconvenient to use.

[0003] Invention Patent Content

[0004] The purpose of this invention is to provide a cap for a digestive endoscope to solve the problems mentioned in the background art, such as the cap being easy to fall off and not being able to guide the instrument.

[0005] To achieve the above objectives, this invention provides the following technical solution: a cap for a digestive endoscope, comprising an endoscope lens, a secondary tube fixedly disposed on one side of the endoscope lens, and surgical instruments passing through the interior of the secondary tube, the height of the secondary tube being lower than the height of the endoscope lens, an inner sleeve inserted into the outer surface of the endoscope lens, and anti-slip teeth evenly disposed inside the inner sleeve, the outer surface of the anti-slip teeth contacting the endoscope lens, and the outer surface of the endoscope lens fitting against the inner surface of the inner sleeve, an outer soft end cap inserted into the outside of the inner sleeve, and a snap-fit ​​mechanism provided between the outer soft end cap and the inner sleeve.

[0006] Preferably, the snap-fit ​​mechanism includes: an inner plastic sleeve, which is embedded and fixed inside the outer soft end cap, and the outer soft end cap is a hollow column made of flexible material. One end of the inner sleeve is designed to be inclined, and the outer surface of the inner sleeve is in close contact with the outer surface of the inner plastic sleeve. The end of the inner sleeve near the secondary tube is provided with positioning teeth evenly, and the positioning teeth are engaged with the inner plastic sleeve.

[0007] By adopting the above technical solution, the inner plastic sleeve and the inner tube can be inserted into each other, which can effectively deform the inclined surface of the inner tube and further allow the anti-slip teeth to be inserted into the interior of the endoscope. The positioning teeth can also be engaged with the inner plastic sleeve, thereby further strengthening the strength of the inner tube clamping and fixing to the endoscope. At the same time, the use of the inner tube and the inner plastic sleeve and the characteristics of the materials can effectively reduce deformation and reduce the probability of the outer soft end cap falling off during use.

[0008] Preferably, the outer soft end cap has a vent hole at the end away from the inner plastic sleeve, and the vent hole is not in contact with the outer surface of the inner plastic sleeve; the outer soft end cap has a bevel at the end away from the positioning tooth.

[0009] By adopting the above technical solution, when the outer soft cap is in contact with the inner wall of the organ through the vent hole, pressure can be released to prevent negative pressure from being generated between the outer soft cap and the outer surface of the organ, thus preventing adsorption. At the same time, the use of the inclined surface can further reduce the flatness between the outer soft caps, allowing a notch to be formed at one end of the outer soft cap, so that the adsorption firmness can be reduced when the outer soft cap moves.

[0010] Preferably, a side hose is fixedly provided on the outer surface of the outer soft end cap near the secondary tube, and the side hose is hollow, with one end of the side hose inserted into the secondary tube. The secondary tube and the side hose are concentrically designed.

[0011] By adopting the above technical solution, the secondary tube can be connected and guided through the side flexible tube, and the surgical instruments that are protruding can be protected, reducing the risk of mechanical instruments getting stuck or causing abrasions to the mucous membranes of organs.

[0012] Preferably, a steering ball is rotatably provided on the side of the side tube near the inclined plane, and a through hole is opened on the outer surface of the steering ball, through which a surgical instrument passes. An extension block is fixedly installed at one end of the steering ball outside the side tube, and an embedding groove is evenly opened on the outer surface of the extension block. An inner groove is opened on the inner surface of the steering ball and the extension block, and the inner groove passes through the embedding groove.

[0013] By adopting the above technical solution, the inserted surgical instruments can be effectively limited and guided by the use of the steering ball. The inner groove allows the guide wire to be flexibly moved within the side tube. At the same time, when replacing the outer soft end cap and the side tube, the insert, guide wire and embedding groove can be easily engaged, which facilitates the replacement of the outer soft end cap and the side tube, and ensures that the guide wire is not affected by the surgical instruments during use.

[0014] Preferably, an insert is fitted inside the embedding groove, and the insert is spherical. A guide wire is embedded and fixed inside the insert, and the outer surface of the guide wire fits against the outer surface of the embedding groove. The inner groove and the embedding groove are evenly opened on the outer surfaces of the steering ball and the extension block.

[0015] Using the above technical solution, the insert can be fixed and positioned by passing the guide wire through the inner groove, and the steering ball can be rotated and its direction adjusted when the guide wire is pulled.

[0016] Preferably, the outer soft end cap and the side hose are fixedly provided with a guide surface at the end away from the vent, and the guide surface is designed with a large angle.

[0017] By adopting the above technical solution, the guide surface can release force, so that the external soft end cap and the side tube can be less stressed when the endoscope is withdrawn from the human body, reducing the chance of the patient being scratched and injured, and also reducing the chance of the external soft end cap and the side tube falling off.

[0018] Compared with the prior art, the beneficial effects of this invention patent are: the tip cap of this digestive endoscope: 1. During installation, the inner sleeve needs to be inserted into the endoscope first, and then the inner plastic sleeve is inserted into the inner sleeve. This will cause the inner sleeve to be deformed by the inner plastic sleeve, and the anti-slip teeth can be inserted into the outer surface of the endoscope to increase the firmness. The positioning teeth and the inner plastic sleeve are engaged to fix the inner sleeve and the inner plastic sleeve together, so that the outer soft end cap can be firmly fixed to the outer surface of the endoscope, reducing the possibility of the outer soft end cap falling off during use. 2. The connection between the side hose and the auxiliary tube on one side of the external soft end cap can further strengthen the connection between the side hose, the external soft end cap and the endoscope. The use of the vent hole can prevent negative pressure suction between the external soft end cap, the side hose and the outer wall of the internal organs. At the same time, the bevel can also create a gap between the external soft end cap and the side hose. Even if the vent hole is blocked, the external soft end cap and the side hose can be separated from the negative pressure through the gap created by the bevel. 3. When using the instrument, the guide cable must first be threaded through the groove on the extension block so that the insert can be inserted into the recess. Then, the surgical instrument is threaded through the secondary tube and through the extension block. This allows for easy and quick assembly and connection of the guide cable and the steering ball. When using the endoscope, the direction of the steering ball can be controlled by pulling the guide cable. This allows the surgical instrument to slightly change direction after it extends out of the extension block, greatly improving the convenience and accuracy of using surgical instruments. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the three-dimensional structure of the endoscope and positioning tooth in this invention patent; Figure 2 This is a cross-sectional three-dimensional structural diagram of the inner sleeve and the outer soft end cap of this invention patent; Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the inner sleeve and the outer soft end cap of this invention patent; Figure 4 This is a schematic diagram of the three-dimensional structure of the side hose and steering mechanism of this invention patent; Figure 5 This is a schematic diagram of the three-dimensional structure of the endoscope and inner sleeve of this invention patent; Figure 6 This is a schematic diagram of the three-dimensional structure of the side hose and steering ball of this invention.

[0020] In the diagram: 1. Endoscope; 2. Secondary tube; 3. Inner sleeve; 4. Anti-slip teeth; 5. Inner plastic sleeve; 6. Positioning teeth; 7. Outer soft end cap; 8. Vent hole; 9. Side hose; 10. Inclined surface; 11. Steering ball; 12. Outer extension block; 13. Inner groove; 14. Embedded groove; 15. Insert; 16. Guide cable; 17. Guide surface. Detailed Implementation

[0021] The technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] Please see Figure 1-6This invention patent provides a technical solution: a cap for a digestive endoscope, including an endoscope 1, a secondary tube 2 fixedly disposed on one side of the endoscope 1, and surgical instruments passing through the interior of the secondary tube 2. The height of the secondary tube 2 is lower than the height of the endoscope 1. An inner sleeve 3 is inserted and installed on the outer surface of the endoscope 1, and anti-slip teeth 4 are evenly arranged inside the inner sleeve 3. The outer surface of the anti-slip teeth 4 is in contact with the endoscope 1, and the outer surface of the endoscope 1 is in contact with the inner surface of the inner sleeve 3. An outer soft end cap 7 is inserted and installed on the outside of the inner sleeve 3, and a snap-fit ​​mechanism is provided between the outer soft end cap 7 and the inner sleeve 3. The mechanism, the snap-fit ​​mechanism, includes: an inner plastic sleeve 5, which is embedded and fixed inside the outer soft end cap 7. The outer soft end cap 7 is a hollow column made of flexible material. A side hose 9 is fixedly opened on the outer surface of the outer soft end cap 7 near the secondary tube 2. The side hose 9 is hollow and one end of the side hose 9 is inserted into the secondary tube 2. The secondary tube 2 and the side hose 9 are concentric. One end of the inner sleeve 3 is inclined and the outer surface of the inner sleeve 3 is tightly fitted with the outer surface of the inner plastic sleeve 5. Positioning teeth 6 are evenly opened on the end of the inner sleeve 3 near the secondary tube 2 and the positioning teeth 6 are engaged with the inner plastic sleeve 5.

[0023] First, when using it, simply insert the inner sleeve 3 into the outer surface of the endoscope lens 1. Then, insert the inner plastic sleeve 5 and the outer soft end cap 7 into the outer surface of the inner sleeve 3. This allows one end of the inner sleeve 3 to deform and the anti-slip teeth 4 to be firmly embedded into the outer surface of the endoscope lens 1 to enhance friction. Through the engagement of the inner plastic sleeve 5 and the positioning teeth 6, the inner plastic sleeve 5 and the inner sleeve 3 can be engaged together to keep the inner sleeve 3 tight and clamped, so that the outer soft end cap 7 can be firmly fixed to the outer surface of the endoscope lens 1. At the same time, the side tube 9 is inserted into the interior of the secondary tube 2 to further increase the firmness of the installation of the outer soft end cap 7, so that the outer soft end cap 7 will not fall off inside the body due to mucus or squeezing during operation, which greatly improves the installation firmness of the endoscope tip cap.

[0024] A side hose 9 is fixedly provided on the outer surface of the outer soft end cap 7 near the secondary tube 2. The side hose 9 is hollow and one end of the side hose 9 is inserted into the secondary tube 2. A vent hole 8 is provided on the end of the outer soft end cap 7 away from the inner plastic sleeve 5. The vent hole 8 is not in contact with the outer surface of the inner plastic sleeve 5. A bevel 10 is provided on the end of the outer soft end cap 7 away from the positioning tooth 6. The secondary tube 2 and the side hose 9 are concentric. A guide surface 17 is fixedly provided on the end of the outer soft end cap 7 and the side hose 9 away from the vent hole 8. The guide surface 17 is designed with a large angle.

[0025] Furthermore, surgical instruments can be added via the secondary tube 2 during use, and the head of the surgical instrument can be stored via the side flexible tube 9, further reducing the chance of the surgical instrument scratching internal organs. At the same time, the guide surface 17 reduces resistance when the endoscope 1 moves inside the human body, further reducing the possibility of the outer soft end cap 7 and the side flexible tube 9 falling off due to force. This allows surgical instruments to be inserted through the secondary tube 2 and the side flexible tube 9 and used flexibly. Meanwhile, the opening of the vent 8 effectively prevents the formation of a vacuum inside the outer soft end cap 7, and the inclined surface 10 prevents the outer soft end cap 7 and the side flexible tube 9 from forming a flat plane, reducing the chance of the outer soft end cap 7 and the side flexible tube 9 adhering to the human body, greatly improving the anti-fall-off performance and practicality of the tip cap.

[0026] A rotatable ball 11 is rotatably mounted on the side of the side tube 9 near the inclined plane 10. The outer surface of the rotatable ball 11 has a through hole through which a surgical instrument passes. An extension block 12 is fixedly mounted on one end of the rotatable ball 11 outside the side tube 9. An insertion groove 14 is evenly provided on the outer surface of the extension block 12. An inner groove 13 is provided on the inner surface of the rotatable ball 11 and the extension block 12, and the inner groove 13 passes through the insertion groove 14. An insert 15 is fitted inside the insertion groove 14. The insert 15 is spherical. A guide wire 16 is fixedly embedded inside the insert 15. The outer surface of the guide wire 16 is in contact with the outer surface of the insertion groove 14. The inner groove 13 and the insertion groove 14 are evenly provided on the outer surfaces of the rotatable ball 11 and the extension block 12.

[0027] Secondly, during installation, the guide cable 16 needs to be passed through the steering ball 11 and the extension block 12, and the guide cable 16 needs to pass through the inner groove 13, so that the insert 15 can be inserted into the embedding groove 14. This allows for quick pre-installation of the insert 15 and the guide cable 16. After that, the outer soft end cap 7 is connected to the side soft tube 9, the auxiliary tube 2, and the inner sleeve 3 to complete the installation of the tip cap. Then, during use, the rotation direction of the steering ball 11 can be controlled by the guide cable 16, so that the inserted surgical instruments can be manipulated and steered, greatly improving the practicality during use.

[0028] The working principle is as follows: Simply pass the insert 15 and guide wire 16 through the side tube 9, ensuring the guide wire 16 passes through the inner groove 13. Then tighten the guide wire 15 so it snaps into the insertion groove 14. Next, insert the inner sleeve 3 into the outer surface of the endoscope 1. Then, take the inner plastic sleeve 5 and the outer soft end cap 7 and insert them into the outer surface of the inner sleeve 3, allowing the secondary tube 2 and the side tube 9 to interlock. This allows the inner sleeve 3 to deform and embed the anti-slip teeth 4 into the outer surface of the endoscope 1. Secure the inner plastic sleeve 5 and the inner sleeve 3 together using the positioning teeth 6. Then, tighten the guide wire 16 to snap the insertion groove 14 and the insert 15 together. Finally, insert the surgical instrument through the secondary tube 2, passing it through the side tube 9, the steering ball 11, and the extension block 12. The steering ball 11 can be operated and steered via the guide wire 16, allowing for flexible switching of surgical instruments without stopping the operation, greatly improving the accuracy and convenience of surgical instrument operation.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cap for a digestive endoscope, comprising an endoscope (1), wherein a secondary tube (2) is fixedly disposed on one side of the endoscope (1), and surgical instruments are inserted inside the secondary tube (2), wherein the height of the secondary tube (2) is lower than the height of the endoscope (1), characterized in that: An inner sleeve (3) is inserted and installed on the outer surface of the endoscope (1), and anti-slip teeth (4) are evenly arranged inside the inner sleeve (3). The outer surface of the anti-slip teeth (4) is in contact with the endoscope (1), and the outer surface of the endoscope (1) is in contact with the inner surface of the inner sleeve (3). An outer soft end cap (7) is inserted and installed on the outside of the inner sleeve (3), and a snap-fit ​​mechanism is provided between the outer soft end cap (7) and the inner sleeve (3).

2. The tip cap of a digestive endoscope according to claim 1, characterized in that: The buckle compression mechanism includes: an inner plastic sleeve (5), which is embedded and fixed inside the outer soft end cap (7), and the outer soft end cap (7) is a hollow column made of flexible material. One end of the inner sleeve (3) is designed to be inclined, and the outer surface of the inner sleeve (3) is in close contact with the outer surface of the inner plastic sleeve (5). The inner sleeve (3) is provided with positioning teeth (6) evenly at the end near the sub-tube (2), and the positioning teeth (6) are engaged with the inner plastic sleeve (5).

3. The tip cap of a digestive endoscope according to claim 1, characterized in that: The outer soft end cap (7) has a vent hole (8) at the end away from the inner plastic sleeve (5), and the vent hole (8) is not in contact with the outer surface of the inner plastic sleeve (5). The outer soft end cap (7) has a bevel (10) at the end away from the positioning tooth (6).

4. The tip cap of a digestive endoscope according to claim 1, characterized in that: The outer soft end cap (7) has a side hose (9) fixedly opened on the outer surface of the side near the sub-tube (2), and the side hose (9) is hollow. One end of the side hose (9) is inserted into the sub-tube (2). The sub-tube (2) and the side hose (9) are concentric.

5. The tip cap of a digestive endoscope according to claim 4, characterized in that: A steering ball (11) is rotatably provided on the side of the side tube (9) near the inclined plane (10), and a through hole is provided on the outer surface of the steering ball (11), and a surgical instrument passes through the through hole of the steering ball (11). An extension block (12) is fixedly installed on one end of the steering ball (11) outside the side tube (9), and an embedding groove (14) is uniformly provided on the outer surface of the extension block (12). An inner groove (13) is provided on the inner surface of the steering ball (11) and the extension block (12), and the inner groove (13) passes through the embedding groove (14).

6. The tip cap of a digestive endoscope according to claim 5, characterized in that: The insert (15) is fitted inside the embedding groove (14), and the insert (15) is spherical. A guide wire (16) is embedded and fixed inside the insert (15), and the outer surface of the guide wire (16) is in contact with the outer surface of the embedding groove (14). The inner groove (13) and the embedding groove (14) are evenly opened on the outer surfaces of the steering ball (11) and the outer extension block (12).

7. The tip cap of a digestive endoscope according to claim 1, characterized in that: The outer soft end cap (7) and the side hose (9) are fixedly provided with a guide surface (17) at the end away from the vent (8), and the guide surface (17) is designed with a large angle.

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