Steering structure of endoscope

Abstract

The utility model relates to the technical field of endoscopes, and discloses a steering structure of an endoscope, which comprises a pull wire fixing seat, snake bones and an endoscope seat, an insertion tube is arranged at the top of the endoscope seat, a plurality of snake bones are stacked to form a snake skeleton, the bottom ends of the snake bones are fixedly connected with the top end of the pull wire fixing seat, and the top end of the endoscope seat is fixedly connected with the snake bones. A protection mechanism is arranged outside the snake bones, a connecting base is fixedly arranged at the bottom of the endoscope base and used for connecting the endoscope base and the soft corrugated sleeve, then the soft corrugated sleeve covers the snake skeleton formed by stacking the snake bones, the snake skeleton is protected, external sundries are prevented from being clamped in gaps between the snake bones, and the endoscope base is protected. The flexible corrugated sleeve made of flexible materials can be bent together with the snake skeleton, the top end and the bottom end of the flexible corrugated sleeve are fixed through the connecting structure, the end of the flexible corrugated sleeve can be detached when necessary, and the snake skeleton can be overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a steering structure of an endoscope. Background Art

[0002] Endoscopes are widely used in the medical and industrial fields. Some models of electronic gastroscope hoses produced by advanced medical equipment manufacturers can even control the steering angle of the hose to cope with the complex visceral pathways in the human body. Electronic gastroscopes are usually inserted into the stomach through a thin, soft tube, and a camera probe and lighting equipment are usually installed at the end of the tube.

[0003] The existing Chinese patent CN215348817U discloses a steering structure of an endoscope, the steering structure of the endoscope includes a snake skeleton formed by stacking more than two snake bones, one end of the snake skeleton abuts against the endoscope seat, and the other end abuts against the traction line guide piece, and the traction line guide piece is fixedly provided with a traction line guide sheath at one end away from the snake skeleton, and the steering mechanism also includes more than two traction lines respectively passing through the traction line guide sheath, the traction line guide piece and the snake skeleton and fixedly connected with the endoscope seat, the snake bone includes a snake bone body, and a protrusion provided on the snake bone body, the protrusion is provided with a guiding inclined surface, the protrusion is a central symmetrical structure, and the snake bone body and / or the protrusion are provided with more than two threading holes for the traction line to pass through, when the traction line is pulled, the traction line guide piece and the endoscope seat squeeze the snake skeleton, and the endoscope seat drives the endoscope to rotate to the outside of the tightened traction line, thereby realizing the steering of the endoscope;

[0004] However, the main structure of the steering structure of the endoscope, the snake frame, is exposed to the outside. During use, foreign objects are easily contaminated in the gaps between the stacked snake bones, which makes the cleaning and disinfection of the snake frame more troublesome. Utility Model Content

[0005] The purpose of the utility model is to provide a steering structure of an endoscope to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an endoscope steering structure, comprising a traction line fixing seat, a snake bone, and an endoscope seat, wherein an insertion tube is arranged on the top of the endoscope seat, a plurality of the snake bones are stacked to form a snake skeleton, the bottom end of the snake bone is fixedly connected to the top end of the traction line fixing seat, and a protective mechanism is arranged on the outside of the snake bone;

[0007] The protective mechanism includes a soft corrugated sleeve, a connecting structure, and a connecting seat. The connecting seat is fixedly connected to the bottom end of the endoscope seat, the bottom of the connecting seat is fixedly connected to the top end of the snake bone, the soft corrugated sleeve is movably sleeved on the outer wall of the snake bone, the top end of the soft corrugated sleeve is fixedly connected to the connecting seat through the connecting structure, the bottom end of the soft corrugated sleeve is fixedly connected to the top end of the traction line fixing seat through the connecting structure, and a through hole is opened on the top of the connecting seat.

[0008] Furthermore, the connection structure includes a compression sleeve, a sealing gasket, and a rigid ring. The rigid ring fixing sleeve is arranged at the top and bottom ends of the soft corrugated sleeve, and the compression sleeve is pressed on the rigid ring. The compression sleeve located at the top is threadedly connected to the outer wall of the connecting seat, and the compression sleeve located at the bottom is threadedly connected to the outer wall of the traction line fixing seat. A sealing gasket is clamped between the compression sleeve and the rigid ring.

[0009] Furthermore, a threading hole is opened at the top of the snake bone, a traction line passes through the inner wall of the threading hole, the top of the traction line is connected to the bottom of the uppermost snake bone, the bottom of the traction line passes through the traction line fixing seat, and the outer wall of the traction line fixing seat is provided with a traction line outer cover.

[0010] Furthermore, a universal joint is fixedly installed on the top of the snake bone, a connecting plate is fixedly installed on the bottom of the snake bone, a rotating shaft is fixedly installed on the outer wall of the connecting plate, and the rotating shaft on the upper snake bone is fixedly connected to the output end of the universal joint on the lower snake bone.

[0011] Furthermore, the outer wall threaded sleeves of the connecting seat and the traction line fixing seat are provided with anti-slip rings, and the anti-slip rings abut against the end of the compression sleeve.

[0012] Furthermore, a second through hole is opened on the top of the snake bone, and the second through hole is aligned with the first through hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A connecting seat is fixedly arranged at the bottom of the endoscope seat to connect the endoscope seat and the soft corrugated sleeve, so that the soft corrugated sleeve is covered on the snake skeleton formed by the stacked snake bones, thereby protecting the snake skeleton and preventing foreign debris from being stuck in the gaps between the snake bones. The soft corrugated sleeve is made of a flexible material so that the soft corrugated sleeve can be bent together with the snake skeleton. The top and bottom ends of the soft corrugated sleeve are fixed by the connecting structure, and the ends of the soft corrugated sleeve can be disassembled when necessary to inspect the snake skeleton;

[0015] 2. Replace the snake skeleton stacked by grooves and protrusions with a snake skeleton stacked by universal joints, connecting plates, and rotating shafts, so that adjacent snake bones cannot be separated. Compared with the snake skeleton stacked by grooves and protrusions, it has higher stability. After the traction line is completely released, the snake skeleton can still maintain the connected stacking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the snake skeleton of the utility model;

[0018] Figure 3 It is a structural schematic diagram of an exploded view of the connection structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the snake bone of the utility model.

[0020] In the figure: 1. traction line fixing seat; 2. traction line; 3. endoscope seat; 4. insertion tube; 5. snake bone; 6. protection mechanism; 601. soft corrugated sleeve; 602. connection structure; 603. connection seat; 604. through hole one; 6021. compression sleeve; 6022. sealing gasket; 6023. rigid ring; 7. traction line outer cover; 8. anti-slip ring; 9. threading hole; 10. through hole two; 11. universal joint; 12. connecting plate; 13. rotating shaft. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a steering structure of an endoscope, comprising a traction line fixing seat 1, a snake bone 5, and an endoscope seat 3, an insertion tube 4 is arranged on the top of the endoscope seat 3, a plurality of snake bones 5 are stacked into a snake skeleton, the bottom end of the snake bone 5 is fixedly connected to the top end of the traction line fixing seat 1, and a protective mechanism 6 is arranged on the outside of the snake bone 5;

[0023] The protective mechanism 6 includes a soft corrugated sleeve 601, a connecting structure 602, and a connecting seat 603. The connecting seat 603 is fixedly connected to the bottom end of the endoscope seat 3. The bottom of the connecting seat 603 is fixedly connected to the top end of the snake bone 5. The soft corrugated sleeve 601 is movably sleeved on the outer wall of the snake bone 5. The top end of the soft corrugated sleeve 601 is fixedly connected to the connecting seat 603 through the connecting structure 602. The bottom end of the soft corrugated sleeve 601 is fixedly connected to the top end of the traction line fixing seat 1 through the connecting structure 602. The top of the connection seat 603 is provided with a through hole 604, and the connection seat 603 is fixedly arranged at the bottom of the endoscope seat 3 to connect the endoscope seat 3 and the soft corrugated sleeve 601, so that the soft corrugated sleeve 601 covers the snake skeleton formed by the snake bones 5, thereby protecting the snake skeleton and preventing foreign objects from being stuck in the gaps between the snake bones 5. The soft corrugated sleeve 601 made of a flexible material allows the soft corrugated sleeve 601 to bend together with the snake skeleton, and the connection structure 602 fixes the top and bottom of the soft corrugated sleeve 601, and when necessary, the ends of the soft corrugated sleeve 601 can be disassembled to inspect the snake frame, and a through hole 604 is opened on the connecting seat 603 for passing the data line. The connecting structure 602 includes a compression sleeve 6021, a sealing gasket 6022, and a rigid ring 6023. The rigid ring 6023 is fixedly sleeved at the top and bottom of the soft corrugated sleeve 601, and the compression sleeve 6021 is pressed on the rigid ring 6023. The compression sleeve 6021 at the top is threadedly connected to the outer wall of the connecting seat 603, and the compression sleeve 6021 at the bottom is threadedly connected to the outer wall of the traction line fixing seat 1. A sealing gasket 6022 is clamped between the compression sleeve 6021 and the rigid ring 6023. The rigid ring 6023 is pressed onto the connecting seat 603 and the traction line fixing seat 1 through the compression sleeve 6021 to fix the end of the soft corrugated sleeve 601. The sealing gasket 6022 is provided to prevent dust from entering the soft corrugated sleeve 601.

[0024] A threading hole 9 is provided at the top of the snake bone 5, a traction line 2 is passed through the inner wall of the threading hole 9, the top of the traction line 2 is connected to the bottom of the uppermost snake bone 5, the bottom of the traction line 2 passes through the traction line fixing seat 1, and the outer wall of the traction line fixing seat 1 is provided with a traction line outer cover 7;

[0025] A universal joint 11 is fixedly installed on the top of the snake bone 5, a connecting plate 12 is fixedly installed on the bottom of the snake bone 5, a rotating shaft 13 is fixedly installed on the outer wall of the connecting plate 12, and the rotating shaft 13 on the upper snake bone 5 is fixedly connected to the output end of the universal joint 11 on the lower snake bone 5. The snake skeleton stacked by grooves and protrusions is replaced by a snake skeleton stacked by universal joints 11, connecting plates 12, and rotating shafts 13, so that adjacent snake bones 5 cannot be separated. Compared with the snake skeleton stacked by grooves and protrusions, the stability is higher. After the traction line 2 is completely released, the snake skeleton can still maintain the connected and stacked state;

[0026] The threaded sleeves on the outer walls of the connecting seat 603 and the traction line fixing seat 1 are provided with an anti-slip ring 8, which contacts the end of the compression sleeve 6021. The anti-slip ring 8 is pressed on the end of the compression sleeve 6021 to improve the anti-seismic performance of the compression sleeve 6021 and prevent the connection between the compression sleeve 6021 and the connecting seat 603 and the traction line fixing seat 1 from loosening.

[0027] A second through hole 10 is provided at the top of the snake bone 5 , and the second through hole 10 is aligned with the first through hole 604 , and is used to pass the data line to ensure stable data transmission when the endoscope seat 3 is working and to continuously supply power to the endoscope seat 3 .

[0028] Working principle: When in use, the soft corrugated sleeve 601 is put on the snake skeleton, and then the top and bottom ends of the soft corrugated sleeve 601 are fixed. When one of the traction lines 2 is tightened, the uppermost snake bone 5 rotates toward the outside of the tightened traction line 2, thereby driving the connecting seat 603 to rotate. The rotation of the connecting seat 603 drives the endoscope seat 3 to rotate, thereby causing the insertion tube 4 to rotate. By pulling the traction lines 2 at different positions, the insertion tube 4 rotates in different directions, thereby realizing 360-degree adjustment of the endoscope.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A steering structure for an endoscope, comprising a traction line fixing seat (1), a snake bone (5), and an endoscope seat (3), characterized in that: An insertion tube (4) is arranged on the top of the endoscope seat (3), a plurality of the snake bones (5) are stacked to form a snake skeleton, the bottom end of the snake bone (5) is fixedly connected to the top end of the traction line fixing seat (1), and a protective mechanism (6) is arranged on the outside of the snake bone (5); The protective mechanism (6) comprises a soft corrugated sleeve (601), a connecting structure (602), and a connecting seat (603); the connecting seat (603) is fixedly connected to the bottom end of the endoscope seat (3); the bottom of the connecting seat (603) is fixedly connected to the top end of the snake bone (5); the soft corrugated sleeve (601) is movably sleeved on the outer wall of the snake bone (5); the top end of the soft corrugated sleeve (601) is fixedly connected to the connecting seat (603) through the connecting structure (602); the bottom end of the soft corrugated sleeve (601) is fixedly connected to the top end of the traction line fixing seat (1) through the connecting structure (602); and a through hole (604) is provided at the top of the connecting seat (603).

2. The steering structure of an endoscope according to claim 1, characterized in that: The connection structure (602) includes a compression sleeve (6021), a sealing gasket (6022), and a rigid ring (6023). The rigid ring (6023) is fixedly sleeved at the top and bottom ends of the soft corrugated sleeve (601). The compression sleeve (6021) is pressed on the rigid ring (6023). The compression sleeve (6021) at the top is threadedly connected to the outer wall of the connecting seat (603), and the compression sleeve (6021) at the bottom is threadedly connected to the outer wall of the traction line fixing seat (1). A sealing gasket (6022) is clamped between the compression sleeve (6021) and the rigid ring (6023).

3. The steering structure of an endoscope according to claim 1, characterized in that: A threading hole (9) is provided at the top of the snake bone (5), a traction line (2) is passed through the inner wall of the threading hole (9), the top end of the traction line (2) is connected to the bottom of the uppermost snake bone (5), the bottom end of the traction line (2) passes through a traction line fixing seat (1), and the outer wall of the traction line fixing seat (1) is provided with a traction line outer cover (7).

4. The steering structure of an endoscope according to claim 1, characterized in that: A universal joint (11) is fixedly mounted on the top of the snake bone (5), a connecting plate (12) is fixedly mounted on the bottom of the snake bone (5), a rotating shaft (13) is fixedly mounted on the outer wall of the connecting plate (12), and the rotating shaft (13) on the upper snake bone (5) is fixedly connected to the output end of the universal joint (11) on the lower snake bone (5).

5. The steering structure of an endoscope according to claim 1, characterized in that: The outer wall threaded sleeves of the connecting seat (603) and the traction line fixing seat (1) are provided with anti-slip rings (8), and the anti-slip rings (8) abut against the end of the compression sleeve (6021).

6. The steering structure of an endoscope according to claim 1, characterized in that: A second through hole (10) is provided on the top of the snake bone (5), and the second through hole (10) is aligned with the first through hole (604).

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