A dual-stage active deflection endoscope snake

Abstract

The present invention discloses a double-stage actively deflecting endoscopic snake bone, comprising: the endoscope snake bone is provided with a two-stage snake bone, the two-stage snake bone includes a plurality of movably connected primary components or secondary components, the primary traction wire is bonded to the inner wall of the first slot, and the secondary traction wire is bonded to the inner wall of the second slot; by pulling the primary traction wire and the secondary traction wire, a single-stage bending is achieved, and then by pulling the primary traction wire in a positive or reverse direction, the head end of the snake bone can be partially bent counterclockwise when the whole body bends clockwise, or can be partially bent clockwise when the whole body bends counterclockwise, thereby achieving double-stage bending, and the tail end of the snake bone, the secondary snake bone, the primary snake bone and the head end of the snake bone can be movable to achieve angle adjustment; compared with the existing technology, the structure is stable, can achieve double-stage bending, and can be applicable to more surgical scenarios.

Description

Technical Field

[0001] The present invention relates to a double-stage active deflection endoscope snake, in particular to a double-stage active deflection endoscope snake. Background Art

[0002] An endoscope is a commonly used medical inspection instrument, typically equipped with components such as an image sensor, optical lens, light source, instrument channel, and water and gas control. In existing snake-bone endoscope technology, the snake is widely used in the bending portion of the endoscope head. The bending direction and degree of the endoscope head can be controlled by pulling a steel wire rope. The endoscope snake-bone structure is composed of a series of interconnected small bones or joints. These small bones or joints are connected to each other through special connection methods (such as spherical or hinge shapes), allowing the endoscope to bend and twist under external forces.

[0003] The snake bone of the prior art can only maintain one-level bending when bending in one direction, that is, it cannot bend locally counterclockwise when bending clockwise as a whole, or it cannot bend locally clockwise when bending counterclockwise as a whole. Summary of the Invention

[0004] The present invention overcomes the deficiencies of the prior art and provides a dual-stage active deflection endoscope snake.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is: a dual-stage active deflection endoscope snake bone, comprising: a snake bone head end, a secondary snake bone movably connected to the snake bone head end, a primary snake bone movably connected to the secondary snake bone, and a snake bone tail end movably connected to the primary snake bone;

[0006] The secondary snake bone includes several movably connected secondary components, and the primary snake bone includes several movably connected primary components;

[0007] The outer walls of the head end of the snake bone, the secondary component, the tail end of the snake bone, the primary component and the tail end of the snake bone are symmetrically provided with a plurality of first slots, and the primary component and the tail end of the snake bone are symmetrically provided with a plurality of second slots. The inner walls of the first slots are connected to the first curved plate, and the inner walls of the second slots are connected to the second curved plate. A first limiting channel is formed between the plurality of first curved plates and the inner wall of the snake bone, and a second limiting channel is formed between the plurality of second curved plates and the inner wall of the snake bone.

[0008] A primary traction wire is bonded to the inner wall of the first slot at the end of the snake bone, and the primary traction wire passes through the first limiting channel. A secondary traction wire is bonded to the inner wall of the first slot near the secondary snake bone, and the secondary traction wire passes through the second limiting channel.

[0009] In a preferred embodiment of the present invention, the primary traction wire and the secondary traction wire are in the same plane.

[0010] In a preferred embodiment of the present invention, the secondary component, the primary component and the end of the snake bone located in the same direction are all provided with an interface groove, and the secondary component, the primary component and the end of the snake bone located in the same direction are all provided with an interface protrusion, and the interface groove and the interface protrusion are movably connected.

[0011] In a preferred embodiment of the present invention, the interface groove and the interface protrusion are arranged relatively on the same plane.

[0012] In a preferred embodiment of the present invention, the interface groove includes: a clamping outer edge groove symmetrically opened at the secondary component, the primary component and one end of the snake head end, and a clamping inner edge groove opened at the secondary component, the primary component and one end of the snake head end.

[0013] In a preferred embodiment of the present invention, the interface protrusion includes: a clamping outer edge boss provided at the secondary component, the primary component and one end of the snake bone tail end, and a clamping inner edge boss provided at the secondary component, the primary component and one end of the snake bone tail end; the clamping inner edge boss is movably connected to the clamping inner edge groove, and the clamping outer edge boss is movably connected to the clamping outer edge groove.

[0014] In a preferred embodiment of the present invention, the clamping outer edge boss is provided with a first limiting protrusion, the clamping outer edge groove is provided with a first limiting groove matching the first limiting protrusion, and the first limiting protrusion is slidably connected to the first limiting groove.

[0015] In a preferred embodiment of the present invention, the clamping inner edge boss is provided with a second limiting protrusion, the clamping inner edge groove is provided with a second limiting groove matching the second limiting protrusion, and the second limiting protrusion is slidably connected to the second limiting groove.

[0016] In a preferred embodiment of the present invention, a capillary steel tube is connected to the inner wall of the tail end of the snake bone. The capillary steel tube has a first channel and a second channel. The secondary traction wire passes through the first channel, and the primary traction wire passes through the second channel.

[0017] The present invention solves the defects existing in the background technology and has the following beneficial effects:

[0018] (1) The present invention provides a double-stage active deflection endoscopic snake bone, which is provided with two-stage snake bones. The two-stage snake bones include a plurality of movably connected primary components or secondary components, the primary traction wire is bonded to the inner wall of the first slot, and the secondary traction wire is bonded to the inner wall of the second slot; by pulling the primary traction wire and the secondary traction wire, a single-stage bending is achieved, and then by pulling the primary traction wire 8 in a positive or reverse direction, the head end 1 of the snake bone can be partially bent counterclockwise when the whole body is bent clockwise, or can be partially bent clockwise when the whole body is bent counterclockwise, thereby achieving double-stage bending, and the tail end of the snake bone, the secondary snake bone, the primary snake bone and the head end of the snake bone can be movable to achieve angle adjustment; compared with the existing technology, the structure is stable, can achieve double-stage bending, and can be applicable to more surgical scenarios.

[0019] (2) A primary traction wire is bonded to the inner wall of the first slot at the end of the snake bone, and the primary traction wire extends into the interior of the snake bone through the first limiting channel. At the same time, a secondary traction wire is bonded to the inner wall of the first slot near the secondary snake bone, and the secondary traction wire also extends into the interior of the snake bone through the second limiting channel. The use of the primary and secondary traction wires achieves dual-stage adjustment. Compared with the existing technology, further adjustment can be completed for special positions to achieve observation, diagnosis and treatment, thereby improving the flexibility and controllability of the snake bone. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments described in the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0021] Figure 1 is a top view of a preferred embodiment of the present invention;

[0022] Figure 2 is a side view of the snake head end of the present invention;

[0023] Figure 3 is a side view of a secondary assembly of the present invention;

[0024] Figure 4 is a side view of a primary assembly of the present invention;

[0025] Figure 5 is a side view of the tail end of the snake bone of the present invention;

[0026] Figure 6 is a side view of the interface protrusion of the present invention;

[0027] Figure 7 is a side view of the interface slot of the present invention;

[0028] Figure 8 is a front cross-sectional view of the snake bone of the present invention;

[0029] In the figure: 1. Head end of snake bone; 2. Secondary snake bone; 21. Secondary assembly; 3. First snake bone; 31. First assembly; 4. First slot; 41. First curved plate; 5. Second slot; 51. Second curved plate; 6. First limiting channel; 7. Second limiting channel; 8. First-level traction wire; 9. Second-level traction wire; 10. Interface groove; 101. Snap-fit ​​outer edge groove; 102. Snap-fit ​​inner edge groove; 11. Interface protrusion; 111. Snap-fit ​​inner edge boss; 112. Snap-fit ​​outer edge boss; 12. Capillary steel tube; 13. Tail end of snake bone. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0034] like Figure 1 As shown, a double-stage active deflection endoscope snake bone, comprising: a double-stage active deflection endoscope snake bone, characterized in that it comprises: a snake bone head end 1, a secondary snake bone 2 movably connected to the snake bone head end 1, a primary snake bone 3 movably connected to the secondary snake bone 2, and a snake bone tail end 13 movably connected to the primary snake bone 3;

[0035] The secondary snake bone 2 includes a plurality of movable secondary components 21, and the primary snake bone 3 includes a plurality of movable primary components 31;

[0036] Specifically, the serpentine is composed of a primary serpentine end 1, a secondary serpentine 2, a primary serpentine 3, and a tail serpentine end 13, all flexibly connected in sequence. The secondary serpentine 2 is composed of several flexibly connected secondary components 21, while the primary serpentine 3 is composed of several flexibly connected primary components 31. This allows the serpentine to flex and deflect flexibly to adapt to complex surgical environments.

[0037] It should be noted that the snake bone head end 1, the secondary snake bone 2, the primary snake bone 3 and the snake bone tail end 13 are laser cut as a whole, and cooperate with each other to form a snake bone movement and limiting structure.

[0038] like Figure 8 As shown, the outer walls of the head end 1 of the serpent bone, the secondary component 21, the tail end 13 of the serpent bone, the primary component 31 and the tail end 13 of the serpent bone are symmetrically provided with a plurality of first slots 4, the primary component 31 and the tail end 13 of the serpent bone are symmetrically provided with a plurality of second slots 5, the inner walls of the first slots 4 are connected to a first curved plate 41, the inner walls of the second slots 5 are connected to a second curved plate 51, a first limiting channel 6 is formed between the plurality of first curved plates 41 and the inner wall of the serpent bone, and a second limiting channel 7 is formed between the plurality of second curved plates 51 and the inner wall of the serpent bone;

[0039] like Figure 8 As shown, a primary traction wire 8 is bonded to the inner wall of the first slot 4 located at the head end 1 of the snake bone, and the primary traction wire 8 passes through the first limiting channel 6. A secondary traction wire 9 is bonded to the inner wall of the first slot 4 near the secondary snake bone 2, and the secondary traction wire 9 passes through the second limiting channel 7.

[0040] like Figure 4 As shown, the primary traction wire 8 and the secondary traction wire 9 are in the same plane.

[0041] Specifically, the primary traction wire 8 and the secondary traction wire 9 located in the same plane can ensure that the traction force remains in the same direction during traction.

[0042] Specifically, when single-stage adjustment is required, the secondary traction wire 9 and the primary traction wire 8 are pulled at the same time. Because of the movable connection between the head end 1 of the snake bone, the secondary snake bone 2, the primary snake bone 3 and the tail end 13 of the snake bone, the snake bone composed of the head end 1, the secondary snake bone 2, the primary snake bone 3 and the tail end 13 of the snake bone are bent in one direction as a whole. When double-stage adjustment is required, under the premise of the above single-stage adjustment, the primary traction wire 8 is pulled forward or reversely to achieve a further bending effect of the head end 1 of the snake bone compared to the existing bending angle; by realizing single-stage and double-stage adjustment, the surgical position can be better found, and the flexibility and accuracy of the operation are improved.

[0043] More specifically, the forward or reverse traction here refers to traction of the first traction wires located in different first limiting channels 6 .

[0044] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, further, the secondary component 21, the primary component 31, and the end of the snake bone head end 1 located in the same direction are each provided with an interface groove 10, and the secondary component 21, the primary component 31 and the end of the snake bone tail end 13 located in the same direction are each provided with an interface protrusion 11, and the interface groove 10 is movably connected to the interface protrusion 11. The interface groove 10 and the interface protrusion 11 are relatively arranged on the same plane.

[0045] Specifically, the interface slot 10 and the interface protrusion 11 are movably connected to each other to achieve the angle adjustment between the secondary component 21 and the primary component 31. The movable connection between the interface slot 10 and the interface protrusion 11 is achieved by sliding the interface slot 10. The interface protrusion 11 slides within the interface slot 10, which can adjust the relative angle between the main body with the interface slot 10 and the main body with the interface protrusion 11. This sliding movement is usually performed within a certain range to ensure the stability and reliability of the connection. Common sliding interface slots 10 are connected to: a tripod head, which can adjust the shooting angle of the camera by connecting with the sliding interface slot 10; or an adjustable chair or table, which can adjust the height or change the tilt angle by connecting with the sliding interface slot 10.

[0046] like Figure 7As shown, further, the interface groove 10 includes: a clamping outer edge groove 101 symmetrically opened at the secondary component 21, the primary component 31 and one end of the snake head end 1, and a clamping inner edge groove 102 opened at the secondary component 21, the primary component 31 and one end of the snake head end 1.

[0047] like Figure 6 As shown, the interface protrusion 11 includes: a clamping outer edge boss 112 provided at one end of the secondary component 21, the primary component 31 and the snake bone tail end 13, and a clamping inner edge boss 111 provided at one end of the secondary component 21, the primary component 31 and the snake bone tail end 13; the clamping inner edge boss 111 is movably connected to the clamping inner edge groove 102, and the clamping outer edge boss 112 is movably connected to the clamping outer edge groove 101.

[0048] Specifically, the movable connections between the inner edge boss 111 and the inner edge groove 102, and the outer edge boss 112 and the outer edge groove 101 are all connected by a sliding interface groove 10, which can ensure that the angle can be adjusted when clamped, thereby improving the flexibility and accuracy of the operation.

[0049] like Figure 4 As shown, further, the clamping outer edge boss 112 is provided with a first limiting protrusion, and the clamping outer edge groove 101 is provided with a first limiting groove matching the first limiting protrusion, and the first limiting protrusion is slidably connected to the first limiting groove.

[0050] The clamping inner edge boss 111 is provided with a second limiting protrusion, and the clamping inner edge groove 102 is provided with a second limiting groove matching the second limiting protrusion, and the second limiting protrusion is slidably connected to the second limiting groove.

[0051] Specifically, by setting a first limiting protrusion and a matching first limiting groove, and a second limiting protrusion and a matching second limiting groove; the first limiting protrusion slides and is limited in the first limiting groove, and the second limiting protrusion slides and is limited in the second limiting groove, the stability of the sliding between the interface groove 10 and the interface protrusion 11 can be improved when the limitation is achieved.

[0052] like Figure 1 As shown, further, the inner wall of the snake bone tail end 13 is connected to a capillary steel tube 12, and the capillary steel tube 12 is provided with a first channel and a second channel. The secondary traction wire 9 passes through the first channel, and the primary traction wire 8 passes through the second channel.

[0053] The first hole and the second limiting channel 7 are located in the same straight line, and the second hole and the first limiting channel 6 are located in the same straight line.

[0054] Specifically, the first channel is designed to be in the same straight line with the second limiting channel 7, and the second channel is designed to be in the same straight line with the first limiting channel 6; such a design can ensure that the traction wire will not be excessively obstructed and interfered when passing through the snake bone, thereby improving the stability and reliability of the traction wire

[0055] When the present invention is used, the snake bone end 1 is directed toward the patient, and the snake bone is introduced into the human body through a natural cavity or a surgically created channel. When the target position is reached, the first traction wire and the second traction wire on one side are pulled simultaneously, and the snake bone as a whole realizes a single-stage bending; when the single stage cannot meet the demand and further bending is required, in the case of a single-stage bending, the first-level traction wire 8 is pulled forward or reversely, so that the snake bone end 1 can be bent clockwise or counterclockwise compared to the existing bending angle, and finally the snake bone end 1 is sent to the designated position.

[0056] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. A dual-stage active deflection endoscope snake bone, characterized in that: include: A snake bone head end (1), a secondary snake bone (2) movably connected to the snake bone head end (1), a primary snake bone (3) movably connected to the secondary snake bone (2), and a snake bone tail end (13) movably connected to the primary snake bone (3); The secondary snake bone (2) includes a plurality of movably connected secondary components (21), and the primary snake bone (3) includes a plurality of movably connected primary components (31); The head end (1) of the serpent bone, the secondary component (21), the tail end (13) of the serpent bone, the primary component (31) and the outer wall of the tail end (13) of the serpent bone are symmetrically provided with a plurality of first slots (4); the primary component (31) and the tail end (13) of the serpent bone are symmetrically provided with a plurality of second slots (5); the inner wall of the first slot (4) is connected to a first arc plate (41); the inner wall of the second slot (5) is connected to a second arc plate (51); a first limiting channel (6) is formed between the plurality of first arc plates (41) and the inner wall of the serpent bone; a second limiting channel (7) is formed between the plurality of second arc plates (51) and the inner wall of the serpent bone; A primary traction wire (8) is bonded to the inner wall of the first slot (4) located at the end of the snake bone (1), and the primary traction wire (8) passes through the first limiting channel (6). A secondary traction wire (9) is bonded to the inner wall of the first slot (4) near the secondary snake bone (2), and the secondary traction wire (9) passes through the second limiting channel (7).

2. The dual-stage active deflection endoscope snake according to claim 1, characterized in that: The primary traction wire (8) and the secondary traction wire (9) are in the same plane.

3. The dual-stage active deflection endoscope snake according to claim 1, characterized in that: The secondary component (21), the primary component (31) and the end of the snake bone head (1) located in the same direction are all provided with an interface groove (10), and the secondary component (21), the primary component (31) and the end of the snake bone tail (13) located in the same direction are all provided with an interface protrusion (11), and the interface groove (10) is movably connected to the interface protrusion (11).

4. The dual-stage active deflection endoscope snake according to claim 3, characterized in that: The interface groove (10) and the interface protrusion (11) are arranged relatively on the same plane.

5. The dual-stage active deflection endoscope snake according to claim 3, characterized in that: The interface groove (10) comprises: a clamping outer edge groove (101) symmetrically arranged between the secondary component (21), the primary component (31) and one end of the snake head end (1); and a clamping inner edge groove (102) arranged between the secondary component (21), the primary component (31) and one end of the snake head end (1).

6. The dual-stage active deflection endoscope snake according to claim 5, characterized in that: The interface protrusion (11) comprises: a clamping outer edge boss (112) provided at one end of the secondary component (21), the primary component (31) and the tail end (13) of the serpentine bone, and a clamping inner edge boss (111) provided at one end of the secondary component (21), the primary component (31) and the tail end (13) of the serpentine bone; the clamping inner edge boss (111) is movably connected to the clamping inner edge groove (102), and the clamping outer edge boss (112) is movably connected to the clamping outer edge groove (101).

7. The dual-stage active deflection endoscope snake according to claim 6, characterized in that: The clamping outer edge boss (112) is provided with a first limiting protrusion, and the clamping outer edge groove (101) is provided with a first limiting groove matching the first limiting protrusion, and the first limiting protrusion is slidably connected to the first limiting groove.

8. The dual-stage active deflection endoscope snake according to claim 7, characterized in that: The clamping inner edge boss (111) is provided with a second limiting protrusion, and the clamping inner edge groove (102) is provided with a second limiting groove matching the second limiting protrusion, and the second limiting protrusion is slidably connected to the second limiting groove.

9. The dual-stage active deflection endoscope snake according to claim 1, characterized in that: Pulling the secondary traction wire (9) and the primary traction wire (8) simultaneously can be used for single-stage adjustment. Under the premise of single-stage adjustment, pulling the primary traction wire (8) forward or reverse can be used for double-stage adjustment.

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