A spring tube structure for endoscopic digestive consumables

Abstract

This utility model relates to the field of endoscopic spring tube technology, specifically a spring tube structure for endoscopic digestive consumables. It includes an endoscopic tubing body comprising multiple spring tubes. The outer peripheral wall of each spring tube has a spiral groove, the gap of which gradually increases from left to right. A quick-connect assembly connects adjacent spring tubes. The quick-connect assembly includes a retainer ring fixed to one end sidewall of a spring tube, and a slot on the inner peripheral wall of the other end of the spring tube. The outer peripheral wall of the retainer ring and the inner peripheral wall of the slot engage. By inserting the retainer ring from one spring tube into the slot of another, multiple spring tubes can be quickly connected and fixed without adding or removing sections, avoiding structural redundancy, reducing costs, and improving the flexibility of adjusting the length of the endoscopic tubing body. This allows for quick and convenient adaptation to different clinical needs.

Description

Technical Field

[0001] This utility model relates to the field of endoscope spring tube technology, and in particular to a spring tube structure for endoscopic digestive consumables. Background Technology

[0002] In endoscopic digestive consumables and instruments, which help doctors go deep into the human digestive tract to diagnose and treat diseases, the spring tube, as the core component of the insertion tube, directly affects the instrument's maneuverability, length adjustment capability, and patient safety.

[0003] A search revealed Chinese patent CN116076987A, which provides a spiral spring-type bending endoscope snake tube. By setting a limiting groove and a limiting boss at the intersection of the rotating cut and the transverse section, the snake tube body is connected as one piece by means of the rotating cut of the spiral structure, which avoids the snake tube body from disassembling and allows the deformation to occur evenly on the rotating cut of the entire spiral structure. This achieves a large bending angle while avoiding stress concentration.

[0004] However, during use, it was found that in different clinical application scenarios, doctors often need to adjust the length of the endoscope according to specific examination or treatment needs. The uniform distribution of the rotating incision limits the flexibility of instrument length adjustment. The length adjustment needs to be achieved by adding or removing tube segments, resulting in structural redundancy and increased costs, making it difficult to quickly and conveniently adapt to different usage lengths. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a spring tube structure for endoscopic digestive consumables. By inserting a ring from one spring tube into the slot of another spring tube, multiple spring tubes can be quickly connected and fixed without adding or removing tube segments, thus avoiding structural redundancy, reducing costs, and improving the flexibility of adjusting the length of the endoscopic tube body. This allows for quick and convenient adaptation to different clinical needs.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a spring tube structure for endoscopic digestive consumables, comprising:

[0007] An endoscope tube body, comprising multiple spring tubes, wherein the outer peripheral wall of each spring tube is provided with a spiral groove, the gap of which gradually increases from left to right;

[0008] A quick-connect assembly is provided, in which two adjacent spring tubes are connected and fixed. The quick-connect assembly includes a plug ring, which is fixed to the side wall of one end of the spring tube. A slot is provided on the inner peripheral wall of the other end of the spring tube, and the outer peripheral wall of the plug ring and the inner peripheral wall of the slot are inserted into each other.

[0009] Preferably, the inner wall of the insertion ring is fitted with a plurality of T-shaped inserts, and the slot wall is provided with a plurality of positioning slots, wherein the T-shaped inserts are engaged with the positioning slots.

[0010] By using the above technical solution, the insertion ring on one spring tube is inserted into the slot of another spring tube, which enables the quick connection and fixation of multiple spring tubes without the need to add or remove tube sections.

[0011] Preferably, a tension spring is sleeved on the outer peripheral wall of the T-shaped insert, one end of the plurality of tension springs is fixedly connected to the inner wall of the insert ring, and the other end of the tension spring is fixedly connected to the inner end of the T-shaped insert.

[0012] With the above technical solution, when the T-shaped insert reaches the positioning groove, the tension spring restores its deformation, driving the T-shaped insert to be inserted into the positioning groove, thus completing the quick connection and fixation of the two spring tubes.

[0013] Preferably, the system includes a steering assembly, which includes a pull rope. A connecting block is fixedly connected to the outer peripheral wall of one end of the pull rope, and an elastic rope is fixedly provided at the other end of the pull rope. A fixing block is slidably connected to the outer peripheral wall of the elastic rope, and the connecting block and the fixing block are respectively fixedly connected to the inner wall of the spring tube.

[0014] Preferably, two arc-shaped blocks are fixed on the outer peripheral wall of one end of the pull rope, and through holes are opened on the arc-shaped blocks. The inner walls of the two arc-shaped blocks are respectively inserted into the outer peripheral wall of the elastic rope.

[0015] Through the above technical solution, the pull rope required for steering can be pulled so that the tension of the pull rope can be transmitted to the elastic rope, thereby causing the spring tube to bend accordingly to adapt to the usage environment.

[0016] Preferably, the elastic rope has an insertion hole, and the through hole and the insertion hole are connected.

[0017] Preferably, a connecting bolt is inserted into the socket, and the connecting bolt is respectively inserted into two through holes.

[0018] The above technical solutions facilitate the connection and removal of connecting bolts through through holes and insertion holes.

[0019] Preferably, one end of the connecting bolt abuts against the outer wall of one of the arc-shaped blocks, and a fastening nut is threaded onto the connecting bolt, the outer wall of the fastening nut abuts against the outer wall of the other arc-shaped block.

[0020] Preferably, a support spring is provided between the connecting block and the fixing block, the support spring is sleeved on the outer peripheral wall of the pull rope, and the two ends of the support spring abut against the connecting block and the fixing block respectively.

[0021] Using the above technical solution, the two arc-shaped blocks at the end of the pull rope are fitted onto the outer wall of the elastic rope. After aligning the through hole and the insertion hole, the connecting bolt is inserted, and the fastening nut is tightened to complete the fixation. Then, the quick-connect assembly of the spring tube is performed.

[0022] The beneficial effects of this utility model are as follows: In this utility model, the doctor adjusts the length of the endoscope according to the specific examination or treatment needs. The doctor selects a spring tube with a suitable gap spiral groove according to the required length. After determining the length, the insertion ring on one spring tube is inserted into the slot of another spring tube, realizing the quick connection and fixation of multiple spring tubes without adding or removing tube sections, avoiding structural redundancy, reducing costs, and improving the flexibility of adjusting the length of the endoscope tube body. It can quickly and conveniently adapt to different clinical use needs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the insert ring structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the spring tube of this utility model;

[0026] Figure 4 This is a schematic diagram of the quick-connect assembly structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the steering component structure of this utility model.

[0028] In the picture:

[0029] 100. Endoscope tube body; 101. Spring tube; 102. Spiral groove;

[0030] 200. Quick-connect assembly; 201. Insert ring; 202. Slot; 203. T-shaped insert; 204. Positioning slot; 205. Tension spring;

[0031] 300. Steering assembly; 301. Pull rope; 302. Connecting block; 303. Elastic rope; 304. Fixing block; 305. Arc-shaped block; 306. Through hole; 307. Insertion hole; 308. Fastening nut; 309. Support spring; 310. Connecting bolt. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Example 1: As Figures 1-4As shown, this embodiment provides a spring tube structure for endoscopic digestive consumables, including an endoscope tube body 100 and a quick-connect assembly 200. The endoscope tube body 100 includes a plurality of spring tubes 101, and the outer peripheral wall of the spring tube 101 is provided with a spiral groove 102, the gap of the spiral groove 102 gradually increases from left to right.

[0034] Two adjacent spring tubes 101 are connected and fixed by a quick-connect assembly 200. The quick-connect assembly 200 includes a plug ring 201, which is fixed to one end side wall of the spring tube 101. A slot 202 is provided on the inner peripheral wall of the other end of the spring tube 101. The outer peripheral wall of the plug ring 201 and the inner peripheral wall of the slot 202 are inserted and engaged.

[0035] Multiple T-shaped inserts 203 are inserted into the inner wall of the insert ring 201, and multiple positioning slots 204 are opened in the slot wall of the slot 202. The T-shaped inserts 203 are inserted into the positioning slots 204. The insert ring 201 on one spring tube 101 is inserted into the slot 202 of another spring tube 101, which realizes the quick connection and fixation of multiple spring tubes 101 without the need to add or remove tube sections.

[0036] A tension spring 205 is sleeved on the outer peripheral wall of the T-shaped insert 203. One end of the multiple tension springs 205 is fixedly connected to the inner wall of the insert ring 201, and the other end of the tension spring 205 is fixedly connected to the inner end of the T-shaped insert 203. When the T-shaped insert 203 reaches the position of the positioning groove 204, the tension spring 205 restores its deformation, driving the T-shaped insert 203 to insert into the positioning groove 204, thus completing the quick connection and fixation of the two spring tubes 101.

[0037] Working principle: When using the endoscope tube body 100 structure for endoscopic digestive consumables, the doctor adjusts the length of the endoscope according to the specific examination or treatment needs. The doctor selects the appropriate gap helical groove 102 spring tube 101 according to the required length. After determining the length, the quick-connect assembly 200 is used to connect two adjacent spring tubes 101. Specifically, the insertion ring 201 on one spring tube 101 is inserted into the slot 202 of another spring tube 101. This realizes the quick connection and fixation of multiple spring tubes 101 without adding or removing tube sections, avoiding structural redundancy, reducing costs, and improving the flexibility of the endoscope tube body 100 length adjustment. It can quickly and conveniently adapt to different clinical use needs.

[0038] As the gap of the spiral grooves 102 on the outer peripheral wall of the spring tube 101 gradually increases from left to right, i.e. the pitch increases, a gradient structure is formed with dense front end and sparse rear end. When the endoscope is inserted into the human body, the dense spiral grooves 102 at the front end provide high bending flexibility and reduce mechanical stimulation to the tissues, while the sparse spiral grooves 102 at the rear end enhance the pushing rigidity, ensuring the effective transmission of operating force and improving the accuracy of endoscopic operation and patient safety.

[0039] When using the quick-connect assembly 200, the insert ring 201 on one Bourdon tube 101 is inserted into the slot 202 of another Bourdon tube 101. During insertion, the T-shaped insert 203 is compressed into the insert ring 201 by the inner wall of the slot 202, and the tension spring 205 is stretched. When the T-shaped insert 203 moves to the position of the positioning groove 204, the tension spring 205 retracts and resets, driving the T-shaped insert 203 into the positioning groove 204, thus completing the quick connection and fixation of the two Bourdon tubes 101. Doctors can quickly increase or decrease the number of Bourdon tubes 101 or replace Bourdon tubes 101 of different lengths according to clinical needs without complicated tools, shortening the preoperative preparation time and facilitating the quick replacement of damaged Bourdon tubes 101.

[0040] Example 2: Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in Embodiment 1, a spring tube structure for endoscopic digestive consumables further includes a steering assembly 300. The steering assembly 300 includes a pull rope 301. A connecting block 302 is fixedly connected to the outer peripheral wall of one end of the pull rope 301, and an elastic rope 303 is fixedly provided at the other end of the pull rope 301. A fixing block 304 is slidably connected to the outer peripheral wall of the elastic rope 303. The connecting block 302 and the fixing block 304 are respectively fixedly connected to the inner wall of the spring tube 101. Pulling the pull rope 301 will cause the spring tube 101 to bend accordingly to adapt to different usage requirements and achieve flexible steering.

[0041] Two arc-shaped blocks 305 are fixed on the outer peripheral wall of one end of the pull rope 301. The arc-shaped blocks 305 have through holes 306. The inner walls of the two arc-shaped blocks 305 are respectively inserted into the outer peripheral wall of the elastic rope 303. Pulling the pull rope 301 for turning allows the tension of the pull rope 301 to be transmitted to the elastic rope 303, thereby causing the spring tube 101 to bend accordingly to adapt to the usage environment.

[0042] The elastic rope 303 has a socket 307. The through hole 306 and the socket 307 are connected. A connecting bolt 310 is inserted into the socket 307. The connecting bolt 310 is respectively inserted into the two through holes 306. The through holes 306 and the socket 307 facilitate the connection and removal of the connecting bolt 310.

[0043] One end of the connecting bolt 310 abuts against the outer wall of one of the arc-shaped blocks 305. A fastening nut 308 is threaded onto the connecting bolt 310. The outer wall of the fastening nut 308 abuts against the outer wall of the other arc-shaped block 305. A support spring 309 is provided between the connecting block 302 and the fixing block 304. The support spring 309 is sleeved on the outer circumferential wall of the pull rope 301. Both ends of the support spring 309 abut against the connecting block 302 and the fixing block 304, respectively. The two arc-shaped blocks 305 at the end of the pull rope 301 are sleeved on the outer wall of the elastic rope 303. After aligning the through hole 306 and the insertion hole 307, the connecting bolt 310 is inserted. The fastening nut 308 is tightened to complete the fixation. Then, the quick-connect assembly of the spring tube 101 is performed.

[0044] When it is necessary to turn the structure of the spring tube 101, pull the pull rope 301. One end of the pull rope 301 is connected to the inner wall of the spring tube 101 through the connecting block 302, and the other end of the elastic rope 303 is slidably connected to the fixed block 304. Pulling the pull rope 301 will cause the spring tube 101 to bend accordingly to adapt to different usage requirements and achieve flexible turning.

[0045] In use, before connecting adjacent spring tubes 101 via quick-connect assembly 200, first attach the two arc-shaped blocks 305 at the end of the pull rope 301 to the outer wall of the elastic rope 303, align the through hole 306 and the insertion hole 307, insert the connecting bolt 310, tighten the fastening nut 308 to complete the fixation, and then perform quick-connect assembly of the spring tubes 101; pull the pull rope 301 required for steering, so that the tension of the pull rope 301 can be transmitted to the elastic rope 303, thereby causing the spring tube 101 to bend accordingly to adapt to the operating environment, while the support spring 309 is compressed. After releasing the pull rope 301, the support spring 309 causes the spring tube 101 to return to its initial shape, improving the reliability and accuracy of steering operation.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spring tube structure for an endoscopic gastrointestinal consumable instrument, characterized by, include: An endoscope tube body (100) includes a plurality of spring tubes (101), the outer peripheral wall of the spring tubes (101) is provided with a spiral groove (102), and the gap of the spiral groove (102) gradually increases from left to right; A quick-connect assembly (200) is used to connect and fix two adjacent spring tubes (101). The quick-connect assembly (200) includes a plug ring (201), which is fixed to one end side wall of the spring tube (101). A slot (202) is provided on the inner peripheral wall of the other end of the spring tube (101). The outer peripheral wall of the plug ring (201) and the inner peripheral wall of the slot (202) are inserted into each other.

2. The spring tube structure for endoscopic digestive consumables as described in claim 1, characterized in that: The inner wall of the insert ring (201) is fitted with a plurality of T-shaped insert rods (203), and the slot (202) has a plurality of positioning slots (204) on its groove wall. The T-shaped insert rods (203) are inserted into the positioning slots (204).

3. The spring tube structure for endoscopic digestive consumables as described in claim 2, characterized in that: A tension spring (205) is sleeved on the outer peripheral wall of the T-shaped insert (203). One end of the multiple tension springs (205) is fixedly connected to the inner wall of the insert ring (201), and the other end of the tension springs (205) is fixedly connected to the inner end of the T-shaped insert (203).

4. The spring tube structure for endoscopic digestive consumables as described in claim 1, characterized in that: The system includes a steering assembly (300), which includes a pull rope (301). One end of the pull rope (301) has a connecting block (302) fixedly connected to its outer peripheral wall, and the other end of the pull rope (301) has an elastic rope (303) fixedly connected to its outer peripheral wall. A fixing block (304) is slidably connected to the outer peripheral wall of the elastic rope (303). The connecting block (302) and the fixing block (304) are respectively fixedly connected to the inner wall of the spring tube (101).

5. The spring tube structure for endoscopic digestive consumables as described in claim 4, characterized in that: Two arc-shaped blocks (305) are fixed on the outer peripheral wall of one end of the pull rope (301). The arc-shaped blocks (305) have through holes (306) and the inner walls of the two arc-shaped blocks (305) are respectively inserted into the outer peripheral wall of the elastic rope (303).

6. The spring tube structure for endoscopic digestive consumables as described in claim 5, characterized in that: The elastic rope (303) has an insertion hole (307), and the through hole (306) and the insertion hole (307) are connected.

7. The spring tube structure for endoscopic digestive consumables as described in claim 6, characterized in that: A connecting bolt (310) is inserted into the socket (307), and the connecting bolt (310) is respectively inserted into two through holes (306).

8. The spring tube structure for endoscopic digestive consumables as described in claim 7, characterized in that: One end of the connecting bolt (310) abuts against the outer wall of one of the arc-shaped blocks (305), and a fastening nut (308) is threaded onto the connecting bolt (310), the outer wall of the fastening nut (308) abuts against the outer wall of the other arc-shaped block (305).

9. The spring tube structure for endoscopic digestive consumables as described in claim 8, characterized in that: A support spring (309) is provided between the connecting block (302) and the fixing block (304). The support spring (309) is sleeved on the outer peripheral wall of the pull rope (301), and the two ends of the support spring (309) abut against the connecting block (302) and the fixing block (304) respectively.

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