CN218899393U - Spiral rotating shaft type bending endoscope snake bone tube - Google Patents
Spiral rotating shaft type bending endoscope snake bone tube Download PDFInfo
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- CN218899393U CN218899393U CN202223542488.XU CN202223542488U CN218899393U CN 218899393 U CN218899393 U CN 218899393U CN 202223542488 U CN202223542488 U CN 202223542488U CN 218899393 U CN218899393 U CN 218899393U
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- pipe body
- snake bone
- rope passing
- passing holes
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Abstract
The utility model provides a spiral rotating shaft type bending endoscope snake bone tube, which comprises a tube body; the side wall of the tube body is provided with a spiral rotating incision, and the tube body is in a spring-shaped structure; when the pipe body is in a straight line arrangement state, the transverse section is intersected with the rotary notch at a plurality of positions, a limiting groove is formed in the position of the rotary notch cavity wall on one side, close to the starting end of the pipe body, of any intersection position of the rotary notch and the transverse section, a limiting boss extends in the position of the rotary notch cavity wall on one side, close to the tail end of the pipe body, of any intersection position of the rotary notch and the transverse section, and the limiting boss extends into the corresponding limiting groove. The side wall of the pipe body is provided with a spiral rotation incision, a plurality of snake bone joint rings similar to the rings of the compression springs are formed on the pipe body, the pipe body is connected into a whole through the snake bone joint ring structure, and asymmetric rotation on two sides can be realized by utilizing the distortion of the snake bone joint rings, so that the relative flexible rotation can be realized under the condition that the joints are not disconnected actually.
Description
Technical Field
The utility model relates to a snake bone structure of a medical endoscope, in particular to a spiral rotating shaft type bending endoscope snake bone tube.
Background
The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software and the like, and is provided with an image sensor, an optical lens, light source illumination, water vapor control and the like, for example, the endoscope in the urinary field can enter the kidney through the urethra or enter the body through other natural pore canals, can achieve the removal of stones, the diagnosis of lesions and the like, is applicable to other correction medical endoscope fields in the urinary field, and has the advantages of being capable of enabling the trauma of patients to be small in minimally invasive surgery and the like.
The existing snake bone tube can be divided into a sectional type snake bone tube and an integral type snake bone tube, the sectional type snake bone tube generally adopts the prior art that the snake bone comprises a snake bone front section ring, a snake bone rear section ring and a plurality of snake bone middle section rings, the snake bone rear section ring has two connecting modes, the first is: the front section ring of the snake bone, the middle section ring of the snake bone and the rear section ring of the snake bone are sequentially connected through rivet riveting, and due to the connecting mode of the rivet riveting, the snake bone is large in size, complex in structure, high in manufacturing cost and easy to deform, so that the rivet is clamped, and the rotation of the snake bone is influenced; second kind: in order to directly cut out the shaft hole structure on the snake bone joint rings, the connecting mode has the advantages of small snake bone size and contribution to small space operation, but the snake bone joint rings are independent from each other, the movement of the snake bone joint rings along the axis direction of the rotating shaft is not effectively restrained, in order to prevent medical accidents caused by unexpected joint removal of the snake bone, a metal wire woven net needs to be wrapped, the protecting measures lead the production process to be complex, the cost of a finished product to be improved, and the popularization of disposable products are not facilitated. Moreover, the adjacent snake bone joint rings are easy to be unhooked in the radial direction, and medical accidents can be caused by unhooking in the operation.
In addition, each snake bone joint circle rotates by utilizing the shaft hole structure, so that the overall diameter of the snake bone tube is seemingly reduced, but the outside of the snake bone tube is wrapped with the metal wire woven net, so that the overall diameter of the snake bone tube is increased by 0.4-0.6 mm, the diameter of the snake bone tube still cannot be extremely straight, and the endoscope meets more operation requirements.
The existing integral type snake bone tube is uniformly distributed with openings on the side wall of the tube body to realize the bending of the tube body, but all the openings are independent openings, the overlarge distance between the openings can cause overlarge bending radius of the snake bone tube, the overlarge distance between the openings can easily cause the shaping deformation of the snake bone tube, and the medical accidents can be caused. The utility model of application number 202220681390.3 relates to a left-right bending controllable steel wire snake bone pipe, which comprises a skull end and a plurality of snake bones, wherein each snake bone comprises a body, two adjacent snake bones are respectively provided with a first connecting component at the bottom of each body and the bottom of each skull end, the top of each body is provided with a second connecting component, each first connecting component is matched with each second connecting component, two adjacent bodies are connected through each first connecting component and each second connecting component, each skull end is connected with each body positioned at the tail end through each first connecting component and each second connecting component, two end positions of the outer side wall of each body are recessed inwards to form a groove, and locking blocks are arranged in the grooves, and each first connecting component comprises two first fixing plates. The steel wire snake bone tube with controllable left and right bending disclosed in the patent has the defect of complex structure, and can not overcome the technical problems existing in the prior art.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the spiral rotating shaft type bending endoscope snake bone tube which has a reasonable structure and avoids the concentration of structural stress.
In order to solve the technical problems, the utility model provides a spiral rotating shaft type bending endoscope snake bone tube, which comprises a tube body;
the two ends of the tube body are respectively a starting end and a tail end, the side wall of the tube body is provided with a spiral rotating incision, and the tube body is in a spring-shaped structure;
when the pipe body is in a straight line arrangement state, the horizontal section passing through the axis of the pipe body is a transverse section of the pipe body, the transverse section is intersected with the rotary notch at a plurality of positions, a limit groove is formed in the position of the rotary notch cavity wall, which is close to the initial end side of the pipe body, at any intersection position of the rotary notch and the transverse section, a limit boss is extended in the position of the rotary notch cavity wall, which is close to the tail end side of the pipe body, at any intersection position of the rotary notch and the transverse section, and the limit boss extends into the corresponding limit groove.
As the preference of the spiral rotating shaft type bending endoscope snake bone tube, the side wall of the upper end of the tube body is provided with a plurality of first rope passing holes which are concavely formed towards the inner side of the tube body, the plurality of first rope passing holes are sequentially distributed at intervals along the length direction of the first rope passing holes, and all the first rope passing holes jointly form a rope passing channel at the inner upper side of the tube body;
the side wall of the lower end of the pipe body is provided with a plurality of second rope passing holes which are concavely formed towards the inner side direction of the pipe body, the second rope passing holes are sequentially distributed at intervals along the length direction of the second rope passing holes, and all the second rope passing holes jointly form a rope passing channel at the inner lower side of the pipe body.
As the optimization of the spiral rotating shaft type bending endoscope snake bone pipe, when the pipe body is in a straight line arrangement state, the projection patterns of the first rope passing holes on the transverse section are not overlapped with the projection patterns of the second rope passing holes on the transverse section.
As the preference of the spiral rotating shaft type bending endoscope snake bone tube, the two side cavity walls of the rotating incision at the upper end of the tube body are respectively extended with the steering limiting blocks towards each other, the two side cavity walls of the rotating incision at the lower end of the tube body are respectively extended with the steering limiting blocks towards each other, and a gap is reserved between the two opposite steering limiting blocks.
As the preference of the spiral rotating shaft type bending endoscope snake bone tube, the projection of the inner wall of the limiting groove on the vertical surface is a major arc; the limiting boss comprises a supporting part and a rotating part, the rotating part is fixed between the supporting part and the wall of the rotary cutting cavity, the rotating part is positioned in the corresponding limiting groove, the outer contour of the rotating part is matched with the inner wall of the corresponding limiting groove, and the supporting part can rotate in the opening of the corresponding limiting groove along the rotating part as the center.
As the preference of the spiral rotating shaft type bending endoscope snake bone tube, a through groove is formed in the wall of a rotating cutting cavity between any two adjacent limit grooves; the wall of the rotary cutting cavity between any adjacent limit bosses is also provided with a through groove.
The side wall of the pipe body is provided with a spiral rotation incision, a plurality of snake bone joint rings similar to the rings of the compression springs are formed on the pipe body, the pipe body is connected into a whole through the snake bone joint ring structure, a plurality of first rope passing holes and a plurality of second rope passing holes are arranged in a staggered mode, asymmetric rotating shafts which are alternately distributed and are not concentric are formed on two sides of the pipe body, each section of the snake bone on the side rotates along the side rotating shaft when the opposite side structure is not considered, the asymmetric rotation on two sides can be realized through the twisting deformation of the snake bone joint rings, the relative flexible rotation can also be realized under the condition that the sections are not actually disconnected, the snake bone is prevented from being separated along the axis, and the limiting precision of the far-end limiting structure is higher.
The spiral rotating shaft type bending endoscope snake bone tube has the advantages that:
(1) The snake bone joint rings are not independent from each other, the two sides are not disconnected, the asymmetric rotating shafts on the two sides are alternately connected by using the spiral structure, the pipe body is integrally cut, the assembling connection relationship is not existed, the damage is not easy, and the snake bone joint rings are prevented from being disjointed;
(2) The rotating shafts on the two sides are restrained to respectively generate respective expected rotation, and asymmetric rotation on the two sides can synchronously occur by utilizing asymmetric distortion of the snake bone joint ring structure, so that flexible bending deformation of the snake bone in the whole expected direction is realized;
(3) The snake bone joint ring structure fully participates in elastic deformation, so that structural stress concentration is avoided, and a larger bending angle is realized under the constraint condition of material stress limit;
(4) The steering limiting block structure is arranged at the middle position of the snake bone joint ring structure, so that the remote limiting far away from the center of the rotating shaft is realized while the torsional deformation is not influenced, and the limiting constraint precision is improved;
(5) The first rope passing holes, the second rope passing holes and the snake bone joint ring structure are alternately distributed, the structure is not thinned at the position where steel wire constraint is needed, the first rope passing holes and the second rope passing holes are arranged, the position connection structure where steel wire constraint is not needed is thinned through the through grooves, asymmetric distortion is participated, and the snake bone bending effect is achieved while the steel wire is effectively constrained;
(6) The outside of the spiral rotating shaft type bending endoscope snake bone pipe does not need to wrap a metal wire woven net, so that the pipe diameter of the snake bone pipe is further reduced, and the endoscope meets more operation requirements.
Drawings
Fig. 1 is a right side view of an embodiment of the present spiral rotary shaft bending endoscope snake bone tube.
Fig. 2 is an enlarged view of the portion N of fig. 1.
Fig. 3 is a front view of an embodiment of the present spiral rotary shaft bending endoscope snake bone tube.
Fig. 4 is a perspective view of an embodiment of the present spiral rotary shaft bending endoscope snake bone tube.
Fig. 5 is an enlarged view of the portion M of fig. 4.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 5.
The spiral rotating shaft type bending endoscope snake bone tube comprises a tube body 1, wherein the two ends of the tube body 1 are respectively provided with a starting end 1A and a tail end 1B, the side wall of the tube body 1 is provided with a spiral rotating notch 13, the tube body 1 is of a compression spring-shaped structure, the rotating notch 13 is positioned between the starting end 1A and the tail end 1B of the tube body 1, and a plurality of snake bone joint rings 14 similar to the rings of the compression springs are formed on the tube body 1;
when the pipe body 1 is in a straight line arrangement state, the horizontal section passing through the axis of the pipe body 1 is a transverse section of the pipe body 1, the transverse section is intersected with the rotary notch 13 at a plurality of positions, a limiting groove 15 (corresponding to the limiting grooves 15 respectively formed on the left side wall and the right side wall of each snake bone joint ring 14, which are close to the tail end 1B of the pipe body 1) is formed in the cavity wall position of the rotary notch 13, which is close to the tail end 1B of the pipe body 1, at any intersection position of the rotary notch 13 and the transverse section, a limiting boss 16 (corresponding to the limiting boss 16 respectively formed on the left side wall and the right side wall of each snake bone joint ring 14, which are close to the pipe body 1, which are close to the head end 1A) is formed in an opening position.
The projection of the inner wall of the limit groove 15 on the vertical surface is a major arc, and the angle corresponding to the arc groove is about 270 degrees; the limiting boss 16 comprises a supporting portion 16a and a rotating portion 16b, the rotating portion 16b is fixed between the supporting portion 16a and the cavity wall of the rotating notch 13, the rotating portion 16b is located in the corresponding limiting groove 15, the outer contour of the rotating portion 16b is matched with the inner wall of the corresponding limiting groove 15, and the supporting portion 16a can rotate in the opening of the corresponding limiting groove 15 along the rotating portion 16b as the center.
The side wall of the upper end of the pipe body 1 between the starting end 1A and the tail end 1B is provided with a plurality of first rope passing holes 11 which are concavely formed towards the inner side of the pipe body 1, the plurality of first rope passing holes 11 are sequentially distributed at intervals along the length direction of the first rope passing holes, four snake bone joint rings 14 are arranged between two adjacent first rope passing holes 11 at intervals, and all the first rope passing holes 11 jointly form a rope passing channel at the inner upper side of the pipe body 1; the side wall of the lower end of the pipe body 1 between the starting end 1A and the tail end 1B is provided with a plurality of second rope passing holes 12 which are concavely formed towards the inner side of the pipe body 1, the second rope passing holes 12 are sequentially distributed at intervals along the length direction of the second rope passing holes, four snake bone joint rings 14 are arranged between two adjacent second rope passing holes 12 at intervals, and all the second rope passing holes 12 jointly form a rope passing channel at the inner lower side of the pipe body 1. The first rope passing holes 11 and the second rope passing holes 12 are distributed at intervals, and when the pipe body 1 is in a straight line arrangement state, the projection patterns of the first rope passing holes 11 on the transverse section are not overlapped with the projection patterns of the second rope passing holes 12 on the transverse section.
The cavity wall of the rotary notch 13 between any adjacent limit grooves 15 is provided with a through groove 13a; the cavity wall of the rotary notch 13 between any adjacent limit bosses 16 is also provided with a through groove 13a.
The two side cavity walls of the rotating notch 13 at the upper end of the pipe body 1 are respectively extended with a steering limiting block 13b towards each other, the two side cavity walls of the rotating notch 13 at the lower end of the pipe body 1 are respectively extended with a steering limiting block 13b towards each other, and a gap is reserved between the two steering limiting blocks 13b opposite to each other.
The spiral type snake bone tube can only swing up and down, and the limit boss 16 and the limit groove 15 are matched to limit the spiral type snake bone tube to swing left and right.
The foregoing is merely one embodiment of the utility model, and it should be noted that variations and modifications could be made by those skilled in the art without departing from the principles of the utility model, which would also be considered to fall within the scope of the utility model.
Claims (6)
1. The utility model provides a crooked endoscope snake bone pipe of spiral pivot formula, includes the body, characterized by:
the two ends of the tube body are respectively a starting end and a tail end, the side wall of the tube body is provided with a spiral rotating incision, and the tube body is in a spring-shaped structure;
when the pipe body is in a straight line arrangement state, the horizontal section passing through the axis of the pipe body is a transverse section of the pipe body, the transverse section is intersected with the rotary notch at a plurality of positions, a limit groove is formed in the position of the rotary notch cavity wall, which is close to the initial end side of the pipe body, at any intersection position of the rotary notch and the transverse section, a limit boss is extended in the position of the rotary notch cavity wall, which is close to the tail end side of the pipe body, at any intersection position of the rotary notch and the transverse section, and the limit boss extends into the corresponding limit groove.
2. The spiral rotary bending endoscope snake bone tube according to claim 1, wherein:
the side wall of the upper end of the pipe body is provided with a plurality of first rope passing holes which are concaved towards the inner side of the pipe body, the plurality of first rope passing holes are sequentially distributed at intervals along the length direction of the first rope passing holes, and all the first rope passing holes jointly form a rope passing channel at the inner upper side of the pipe body;
the side wall of the lower end of the pipe body is provided with a plurality of second rope passing holes which are concavely formed towards the inner side direction of the pipe body, the second rope passing holes are sequentially distributed at intervals along the length direction of the second rope passing holes, and all the second rope passing holes jointly form a rope passing channel at the inner lower side of the pipe body.
3. The helically rotating shaft type bending endoscope snake bone tube according to claim 2, wherein:
when the pipe body is in a straight line arrangement state, the projection patterns of the first rope passing holes on the transverse section are not overlapped with the projection patterns of the second rope passing holes on the transverse section.
4. The spiral rotary bending endoscope snake bone tube according to claim 1, wherein:
the two side cavity walls of the rotating notch at the upper end of the pipe body extend towards each other respectively to form a steering limiting block, the two side cavity walls of the rotating notch at the lower end of the pipe body extend towards each other respectively to form a steering limiting block, and a gap is reserved between the two steering limiting blocks opposite to each other.
5. The spiral rotary bending endoscope snake bone tube according to claim 1, wherein:
the projection of the inner wall of the limit groove on the vertical surface is a major arc; the limiting boss comprises a supporting part and a rotating part, the rotating part is fixed between the supporting part and the wall of the rotary cutting cavity, the rotating part is positioned in the corresponding limiting groove, the outer contour of the rotating part is matched with the inner wall of the corresponding limiting groove, and the supporting part can rotate in the opening of the corresponding limiting groove along the rotating part as the center.
6. The spiral rotary bending endoscope snake bone tube according to claim 1, wherein:
the wall of the rotary cutting cavity between any two adjacent limit grooves is provided with a through groove; the wall of the rotary cutting cavity between any adjacent limit bosses is also provided with a through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542488.XU CN218899393U (en) | 2022-12-26 | 2022-12-26 | Spiral rotating shaft type bending endoscope snake bone tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542488.XU CN218899393U (en) | 2022-12-26 | 2022-12-26 | Spiral rotating shaft type bending endoscope snake bone tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218899393U true CN218899393U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223542488.XU Active CN218899393U (en) | 2022-12-26 | 2022-12-26 | Spiral rotating shaft type bending endoscope snake bone tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218899393U (en) |
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2022
- 2022-12-26 CN CN202223542488.XU patent/CN218899393U/en active Active
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