Two-stage active deflection endoscope snake bone

Abstract

The invention discloses a two-stage active deflection endoscope snake bone which is characterized in that the endoscope snake bone is provided with two stages of snake bones, the two stages of snake bones comprise a plurality of first-stage assemblies or second-stage assemblies which are movably connected, a first-stage traction wire is bonded to the inner wall of a first open groove, and a second-stage traction wire is bonded to the inner wall of a second open groove; single-stage bending is achieved by pulling the first-stage traction wire and the second-stage traction wire, then the first-stage traction wire is pulled in the forward direction or the reverse direction, and therefore the end of the snake bone head can be locally bent anticlockwise when the whole snake bone head is bent clockwise or can be locally bent clockwise when the whole snake bone head is bent anticlockwise, and double-stage bending is achieved. The snake bone tail end, the second-stage snake bone, the first-stage snake bone and the snake bone head can move to realize angle adjustment; compared with the prior art, the structure is stable, two-stage bending can be achieved, and the double-stage bending device can be suitable for more operation scenes.

Description

Technical Field

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

[0002] Endoscope is a commonly used medical detection instrument, which is usually equipped with image sensors, optical lenses, light sources, instrument channels, water and gas control and other components. In the existing snake bone endoscope technology, the snake bone is widely used in the bending part of the endoscope head end, and the bending direction and degree of the endoscope head end can be controlled by pulling the wire rope; the endoscope snake bone structure is composed of a series of interconnected small bones or joints, which are connected to each other by special connection methods (such as spherical or hinge shape), so that the endoscope can bend and twist under the action of external force.

[0003] The snake bone of the prior art can only maintain a first-order bending when bending in one direction, that is, it cannot bend partially counterclockwise when bending clockwise as a whole, or it cannot bend partially 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 double-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 a plurality of movably connected secondary components, and the primary snake bone includes a plurality of movably connected primary components;

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

[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 opened on the secondary component, the primary component and one end of the snake bone tail end, and a clamping inner edge boss opened on 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, and the capillary steel tube is provided with 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 actively deflecting endoscopic snake bone, which is provided with two-stage snake bones, and the two-stage snake bones include a plurality of movably connected primary components or secondary components, wherein 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 prior art, 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 to the inside 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 to the inside of the snake bone through the second limiting channel; the primary traction wire and the secondary traction wire are used to achieve dual-stage adjustment; compared with the prior art, 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 drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

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

[0022] Figure 2 is a side view of the end of the snake bone 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. snake bone end; 2. secondary snake bone; 21. secondary component; 3. primary snake bone; 31. primary component; 4. first slot; 41. first arc plate; 5. second slot; 51. second arc plate; 6. first limiting channel; 7. second limiting channel; 8. primary traction wire; 9. secondary traction wire; 10. interface slot; 101. outer edge groove for clamping; 102. inner edge groove for clamping; 11. interface protrusion; 111. inner edge boss for clamping; 112. outer edge boss for clamping; 12. capillary steel tube; 13. snake bone tail end. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope 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", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by 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 movably connected secondary components 21, and the primary snake bone 3 includes a plurality of movably connected primary components 31;

[0036] Specifically, the snake bone is formed by the snake bone head end 1, the secondary snake bone 2, the primary snake bone 3 and the snake bone tail end 13 being movably connected in sequence. The secondary snake bone 2 is composed of a plurality of movably connected secondary components 21, and the primary snake bone 3 is composed of a plurality of movably connected primary components 31. This allows the snake bone to bend 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 snake bone, the secondary component 21, the tail end 13 of the snake bone, the primary component 31 and the tail end 13 of the snake bone are symmetrically provided with a plurality of first slots 4, the primary component 31 and the tail end 13 of the snake 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 snake bone, and a second limiting channel 7 is formed between the plurality of second arc plates 51 and the inner wall of the snake 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 is maintained 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, the secondary serpent bone 2, the primary serpent bone 3 and the tail end 13 of the serpent bone, the snake bone as a whole composed of the head end 1, the secondary serpent bone 2, the primary serpent bone 3 and the tail end 13 of the serpent bone is bent in one direction. 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, so that the head end 1 of the serpent bone can achieve a further bending effect 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 1 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 in the same direction are all provided with an interface protrusion 11, and the interface groove 10 is movably connected with the interface protrusion 11. The interface groove 10 and the interface protrusion 11 are relatively arranged in the same plane.

[0045] Specifically, the interface groove 10 and the interface protrusion 11 are movably connected to achieve the adjustment of the angle between the secondary component 21 and the primary component 31. The interface groove 10 and the interface protrusion 11 are movably connected by a sliding interface groove 10. The interface protrusion 11 slides in the interface groove 10, which can adjust the relative angle between the main body with the interface groove 10 and the main body with the interface protrusion 11. This sliding movement is usually carried out within a certain range to ensure the stability and reliability of the connection. Common sliding interface grooves 10 are connected to: a tripod head, which can adjust the shooting angle of the camera by connecting with the sliding interface groove 10; or an adjustable chair or table, which can adjust the height or change the tilt angle by connecting with the sliding interface groove 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 opened at the secondary component 21, the primary component 31 and one end of the snake bone tail end 13, and a clamping inner edge boss 111 opened at the secondary component 21, the primary component 31 and one end of 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 connection 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 snapped, 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, and when the limitation is achieved, the stability of the interface groove 10 and the interface protrusion 11 when sliding can be improved.

[0052] like Figure 1 As shown, further, the inner wall of the snake bone tail end 13 is connected with 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, by pulling the first-stage traction wire 8 in a forward or reverse direction, 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 is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A dual-stage active deflection endoscope snake, 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 outer wall of the head end (1) of the snake bone, the secondary component (21), the tail end (13) of the snake bone, the primary component (31) and the tail end (13) of the snake bone are symmetrically provided with a plurality of first slots (4); the primary component (31) and the tail end (13) of the snake 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 snake bone; a second limiting channel (7) is formed between the plurality of second arc plates (51) and the inner wall of the snake bone; 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) close to the secondary snake bone (2), and the secondary traction wire (9) passes through the second limiting channel (7).

2. A 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. A 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. A 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. A 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 snake 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 snake 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. A 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. A 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 reversely can be used for double-stage adjustment.

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