CN219461083U - Endoscope bending angle recognition device and endoscope - Google Patents

Abstract

The utility model relates to an endoscope bending angle recognition device and an endoscope; the endoscope bending angle identification device comprises a rotating wheel, a traction cable and an identification piece, wherein the traction cable is connected with the rotating wheel and an insertion part of the endoscope, the identification piece comprises a first identification body and a second identification body, the first identification body is arranged on the rotating wheel, the second identification body is arranged on a handle part, and the second identification body is provided with a plurality of identification parts; the utility model provides an endoscope bending angle recognition device, accessible traction cable is connected runner and endoscope's insert portion, make the runner when adjusting insert portion angle through rotation control traction cable, first recognition body can rotate along with the runner to contact with the different recognition portion on the second recognition body, make signal electric circuit's signal response change, and then make the operator can discern the bending angle of insert portion according to feedback unit's demonstration change, so that more accurate use endoscope carries out focus search, reduce medical safety risk.

Description

Endoscope bending angle recognition device and endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an endoscope bending angle recognition device and an endoscope.

Background

An endoscope is an instrument commonly used in clinical medical diagnosis and treatment, and generally includes an insertion portion for insertion into a human body, a head end portion connected to the insertion portion for providing visual field illumination and collecting tissue and lesion information of a patient, a connection portion for connection to a main body, and an operation portion for manual control operation.

The existing operation part is provided with an adjusting mechanism, the adjusting mechanism is connected with the insertion part, and the bending angle of the insertion part can be adjusted, so that the purpose of diagnosing different directions and areas in human tissues by the endoscope is achieved.

However, when the conventional endoscope is used, a doctor cannot intuitively judge the bending angle of the insertion portion, so that the situation that the bending angle of the insertion portion is too large to cause the tissue mucosa of the patient at the head end part exists in the clinical operation process of the doctor, and the situation that the tissue mucosa of the patient is injured or the endoscope is damaged and the like because the insertion portion is still at the bending angle in the operation process of advancing and retracting the endoscope exist in the clinical operation process, and certain medical safety risks exist.

Disclosure of Invention

Accordingly, it is necessary to provide an endoscope bending angle recognition device and an endoscope for recognizing the bending angle of the insertion portion in order to solve the above-mentioned problem of inconvenience in recognizing the bending angle of the insertion portion, so that a doctor can recognize the bending angle of the insertion portion easily, and more precisely search for lesions using the endoscope, thereby reducing the risk of medical safety.

An endoscope bending angle recognition device, comprising:

a runner which is provided in a handle portion of the endoscope and is rotatable about its own axis;

the traction cable is connected with the rotating wheel and the insertion part of the endoscope, and when the rotating wheel rotates, the traction cable is driven to drive the insertion part to change the bending angle;

the locking piece is arranged on the rotating wheel, and the traction cable is locked on the rotating wheel through the locking piece;

the control assembly comprises a rotating shaft which is in transmission connection with the rotating wheel;

the identification piece comprises a first identification body and a second identification body which are respectively arranged on the rotating wheel and the handle, wherein the first identification body and the second identification body are electrically connected with the feedback unit through a signal electric loop, and the first identification body and the second identification body enable the signal electric loop to generate electric signals corresponding to the rotating angle along with the different rotating angles of the rotating wheel.

Above-mentioned endoscope bending angle recognition device, accessible traction cable is connected runner and endoscope's insert portion, make the runner when adjusting insert portion angle through rotation control traction cable, first recognition body can rotate along with the runner to contact with the different recognition portion on the second recognition body, make signal electric circuit produce different electrical signals, and then make the operator can discern the bending angle of insert portion according to feedback unit's demonstration change, so that more accurate use endoscope carries out focus searching, reduce medical safety risk.

In one embodiment, the second identification body has a plurality of identification parts, and the first identification body is induced with different identification parts along with the rotation of the rotating wheel, so that the signal electric circuit generates electric signals corresponding to the different identification parts.

In the above embodiment, when the first identification body contacts with different identification parts, the first identification body can respond to the electric signals to the feedback unit through different signal electric loops, so that the feedback unit carries out corresponding feedback according to different electric signals, and an operator can determine the bending angle of the insertion part of the endoscope according to different feedback conditions.

In one embodiment, the identification member is an electrical conductor, the first identification member or the second identification member is electrically connected to the feedback unit, and when the wheel rotates to different angles, the first identification member contacts different identification portions to be electrically connected to the feedback unit through different signal electrical circuits.

In one embodiment, the distance between each identification portion and the axis of the rotating wheel is consistent, and the included angle between two adjacent identification portions is consistent.

In the above embodiment, by making the distances between the respective identification portions and the axis of the wheel uniform, it is ensured that the first identification body can be brought into contact with the respective identification portions when the wheel rotates, and at the same time, by making the angles between the adjacent two identification portions uniform, it is convenient to confirm the setting of the bending angle at the time of production.

In one embodiment, the first identification body has a plurality of identification parts, the second identification body has a plurality of trigger parts, and different identification parts are contacted with different trigger parts along with the rotation of the rotating wheel so that the signal electric circuit generates different electric signals. The first identification body is a switch trigger piece, the identification part is an identification switch, and different identification switches are triggered by the switch trigger piece along with the rotation of the rotating wheel so that different electric signals are generated by the signal electric loop, and the switch trigger piece is an identification groove or an identification thimble.

In the above embodiment, the identification switch is pressed to trigger the signal, so that the feedback unit receives feedback of different identification switches, and the operator determines the bending angle of the endoscope insertion portion according to different feedback conditions.

In one embodiment, an identification guide groove is formed in the outer peripheral surface of the rotating wheel, the identification ejector pin is arranged in the identification guide groove, and the distances between the identification guide groove and the identification ejector pin and the identification switch are different, so that different response signals are generated by the signal electric circuit.

In the above embodiment, the identification switch may be guided by the identification guide slot, so that the identification switch may move more stably relative to the rotating wheel, and in addition, the identification thimble may enable the identification switch to be triggered by being pressed, so that the feedback unit receives corresponding feedback.

In one embodiment, an identification guide groove is formed in the outer peripheral surface of the rotating wheel, the identification guide groove is arranged in the identification guide groove, and the distance between the identification guide groove and the identification switch is different, so that different response signals are generated by the signal electric circuit.

In the above embodiment, since the distance between the identification groove and the axis of the wheel is smaller than the distance between the identification portion and the axis of the wheel, when the identification switch rotates into the identification groove, the identification switch and the first identification body may be in a separated state, the identification switch may not be pressed, and since the distance between the identification guide groove and the axis of the wheel is greater than the distance between the identification portion and the axis of the wheel, when the identification switch rotates into the identification guide groove, the identification switch and the first identification body are in a contact state, the identification switch is pressed and thus a trigger signal is triggered, so that the feedback unit receives corresponding feedback. In one embodiment, the identification guide groove has a first cambered surface coaxial with the rotating wheel, the identification groove is formed in the first cambered surface, the identification groove has a second cambered surface, and the second cambered surface is connected with the first cambered surface.

In one embodiment, the feedback unit includes an image processor and an image display, the first recognition entity is electrically connected to the image processor, and the image processor is electrically connected to the image display.

In the above embodiment, the image processor receives the related signals from the different recognition portions and outputs the corresponding signal information to the image display, so that the operator can confirm the bending angle of the endoscope insertion portion according to the image in the image display.

In one embodiment, the identification member is a potentiometer, the potentiometer includes a bracket and a rotating handle, the bracket and the rotating handle are respectively arranged on the mounting member and the rotating wheel, the first identification body and the second identification body are respectively a movable contact and a resistor, and the movable contact and the resistor are respectively arranged on the rotating handle and the bracket.

In the above embodiment, when the rotating wheel controls the traction cable to adjust the angle of the insertion portion, the rotating handle can drive the movable contact to rotate along with the rotating wheel, so that the movable contact contacts different parts of the resistor body, and the electric signal of the signal electric loop responds to change, so that an operator can identify the bending angle of the insertion portion according to the display change of the feedback unit, thereby more accurately using the endoscope to search the focus and reducing the medical safety risk.

An endoscope comprises an insertion part, a handle part, an electric connection part and the endoscope bending angle identification device, wherein the insertion part, the electric connection part and the endoscope bending angle identification device are all arranged on the handle part, and the electric connection part is electrically connected with the endoscope bending angle identification device.

Above-mentioned endoscope, accessible endoscope bending angle recognition device discerns the bending angle of the insert portion of endoscope to the accurate focus search that uses the endoscope of operator, can guarantee in addition that the endoscope is when advancing the mirror and moving back the mirror operation, and its insert portion can be in natural state (i.e. sharp state), reduces medical safety risk.

In one embodiment, the insertion portion is connected to the wheel by a traction cable, the insertion portion being capable of bending as a result of rotation of the wheel, so that the electrical signal of the signal electrical circuit varies in response to different ones of the identification portions.

In the above embodiment, when the angle of the insertion portion is adjusted by controlling the traction cable through rotation of the rotating wheel, the first identification body can rotate along with the rotating wheel and contact with different identification portions on the second identification body, so that different electric signals are generated by the signal electric loop, and further, an operator can identify the bending angle of the insertion portion according to display changes of the feedback unit, so that focus searching can be performed by using the endoscope more accurately, and medical safety risks are reduced.

Drawings

FIG. 1 is a schematic view of an endoscope bending angle identification device according to some embodiments of the present application;

FIG. 2 is a schematic view of a structural separation of an endoscope bending angle identification device according to some embodiments of the present application;

FIG. 3 is a schematic diagram illustrating operation of an endoscope bend angle recognition device according to some embodiments of the present application;

FIG. 4 is a graph of identifying bend angles of display elements according to some embodiments of the present application;

FIG. 5 is a schematic view of an endoscope bending angle identification device according to other embodiments of the present application;

FIG. 6 is a schematic view showing a structural separation of an endoscope bending angle recognition device according to other embodiments of the present application;

FIG. 7 is a schematic view of a rotor according to further embodiments of the present application;

FIG. 8 is a schematic diagram illustrating operation of an endoscope bending angle identification device according to further embodiments of the present application;

FIG. 9 is a view showing the identification of the bending angle of a display member according to other embodiments of the present application;

FIG. 10 is a schematic view of an endoscope bending angle identification device according to still further embodiments of the present application;

FIG. 11 is a schematic view showing a structural separation of an endoscope bending angle recognition device according to still other embodiments of the present application;

FIG. 12 is a schematic diagram illustrating operation of an endoscope bending angle identification device according to still further embodiments of the present application;

FIG. 13 is a view showing the identification of bending angles of a display member according to further embodiments of the present application;

FIG. 14 is a schematic structural view of a mount according to some embodiments of the present application;

FIG. 15 is a schematic view of a wheel according to some embodiments of the present application from another perspective;

fig. 16 is a schematic structural view of an endoscope according to some embodiments of the present application.

Reference numerals:

1. a mounting member; 11. a fixed channel; 12. a receiving groove; 13. a first limit part; 14. a support part; 15. a guide groove;

2. a rotating wheel; 21. a connecting shaft; 22. a traction cable; 221. a fixed section; 222. a traction section; 23. a second limit part; 24. a fixing groove; 25. a fixing part; 26. a mounting groove;

3. an identification member;

31. a first recognition entity; 311. identifying a guide slot; 312. identifying the groove; 3121. a first groove; 3122. a second groove; 313. a first cambered surface; 314. a second cambered surface;

32. a second recognition entity; 321. a first switch; 322. a second switch; 323. a third switch;

33. an identification unit;

34. a bracket; 341. a first resistor; 342. a second resistor;

35. a rotary handle; 351. a first wire; 352. a second wire; 353. a third wire;

4. a feedback unit; 41. an image processor; 42. an image display;

5. a control member; 51. a rotating shaft;

6. a fixing member; 61. a pressing plate; 62. fastening a screw;

7. A locking member; 71. a locking body; 72. locking a screw;

8. an endoscope; 81. an insertion section; 811. a snake bone curvature; 812. an insertion tube portion; 82. a handle portion; 83. an electrical connection portion; 84. a head end.

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 present 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 of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, an embodiment of the present utility model provides an endoscope bending angle recognition apparatus including a mounting member 1, a rotating wheel 2, a recognition member 3, and a feedback unit 4. The runner 2 may be connected to the insertion portion 81 of the endoscope 8 through the pulling cable 22, so that the runner 2 may drive the pulling cable 22 to perform angle adjustment on the end of the insertion portion 81 of the endoscope 8 when rotating. The recognition member 3 is provided on the mounting member 1 and the rotating wheel 2 for recognizing the adjustment angle of the insertion portion 81. The feedback unit 4 is electrically connected to the identification member 3 to display the identified angle.

The wheel 2 is provided on the mounting 1 and is rotatable about its own axis.

Specifically, the fixing channel 11 is arranged in the mounting piece 1, the rotating wheel 2 is provided with a connecting shaft 21 coaxial with the fixing channel 11, and the connecting shaft 21 penetrates through the fixing channel 11 and is coaxial with the fixing channel 11. The connecting shaft 21 can drive the rotating wheel 2 to rotate on the mounting piece 1.

More specifically, the pulling cable 22 and the locking member 7 may be provided on the rotating wheel 2, and the pulling cable 22 is locked to the rotating wheel 2 by the locking member 7. The traction cable 22 is connected with the rotating wheel 2 and the insertion part 81 of the endoscope 8, and when the rotating wheel 2 rotates, the traction cable 22 is driven to drive the insertion part 81 to change the bending angle.

Wherein the traction cable 22 comprises a fixing section 221 and two traction sections 222 connected to the fixing section 221. The fixed section 221 is connected to the runner 2, and the two pulling sections 222 are connected to both sides of the insertion portion 81 of the endoscope 8. When the rotating wheel 2 rotates relative to the mounting member 1, the fixing section 221 rotates together with the rotating wheel 2, and further drives the two traction sections 222 to move, so that the two traction sections 222 adjust the bending angle of the insertion portion 81 of the endoscope 8.

The identification member 3 includes a first identification body 31 and a second identification body 32, the first identification body 31 and the second identification body 32 are electrically connected with the feedback unit 4 through a signal electrical circuit, and as the rotation angle of the rotating wheel 2 is different, the first identification body 31 and the second identification body 32 enable the signal electrical circuit to generate an electrical signal corresponding to the rotation angle. Specifically, in one embodiment, the first identifier 31 is disposed on the rotating wheel 2, the second identifier 32 is disposed on the mounting member 1 and is electrically connected to the feedback unit 4 through the signal electrical circuit, the second identifier 32 has a plurality of identifiers 33, and the first identifier 31 can contact with different identifiers 33 due to the rotation of the rotating wheel 2, so that the signal electrical circuit generates different electrical signals; in another embodiment, the first identification body 31 is provided on the mounting 1, the second identification body 32 is provided on the wheel 2, the second identification body 32 has a plurality of identification portions 33, and the first identification body 31 can be brought into contact with different identification portions 33 due to the rotation of the wheel 2.

Referring to fig. 16, the feedback unit 4 includes an image processor 41 and an image display 42, and the recognition element 3 is electrically connected to the image processor 41 through a signal electric circuit, and an electric signal from the recognition element 3 can be received through the image processor 41. The image processor 41 is electrically connected to the image display 42, and the image display 42 can display the curved image and the command signal or the natural image and the command signal outputted from the image processor 41, so that the operator can confirm the angle of the insertion portion 81 of the endoscope 8 from the image on the image display 42. The feedback unit 4 can warn and remind an operator through the image display 42, and better human-computer interaction experience is provided.

When the endoscope bending angle recognition device is used, the rotating wheel 2 can be connected with the insertion part 81 of the endoscope 8 through the traction cable 22, so that the angle of the insertion part 81 can be adjusted by the traction cable 22 when the rotating wheel 2 rotates, the first recognition body 31 can rotate along with the rotating wheel 2 in the adjusting process and is contacted with different recognition parts 33 on the second recognition body 32, different electric signals are generated by a signal electric loop, and an operator can recognize the bending angle of the insertion part 81 according to the display change of the feedback unit 4, so that the endoscope 8 can be used more accurately to search a focus, and the medical safety risk is reduced.

Referring to fig. 1 and 2, in one embodiment, the second identifier 32 has a plurality of identifiers 33, and the first identifier 31 is induced by the different identifiers 33 along with the rotation of the wheel 2, so that the signal electrical circuit generates an electrical signal corresponding to the different identifiers 33. The identification piece 3 is an electrical conductor, the first identification body 31 or the second identification body 32 is electrically connected with the feedback unit 4, and when the rotating wheel 2 rotates to different angles, the first identification body 31 is contacted with different identification parts 33 so as to be electrically connected with the feedback unit 4 through different signal electrical loops.

Specifically, the first identification body 31 and the identification parts 33 are selected from electric conductors, the first identification body 31 is electrically connected with the feedback unit 4, and the plurality of identification parts 33 are separated from each other and are electrically connected with the feedback unit 4 through different signal electric loops. When the first identification body 31 contacts with the different identification parts 33, the electric signals can be responded to the feedback unit 4 through different signal electric loops, so that the feedback unit 4 can perform corresponding feedback according to the different electric signals, and an operator can determine the bending angle of the insertion part 81 of the endoscope 8 according to different feedback conditions.

More specifically, the first conductor is a contact, and the identification portion 33 is a thimble. The contact point is arranged on the rotating wheel 2 in a penetrating way and is electrically connected with the feedback unit 4. The plurality of ejector pins are all arranged in the mounting piece 1 and are electrically connected with the feedback unit 4 through different signal electric loops. When the contact rotates along with the rotating wheel 2 to contact with different ejector pins, different signal electric circuits are conducted, so that the feedback unit 4 can receive the electric signals of the corresponding signal electric circuits.

In one embodiment, each of the identification portions 33 is at a uniform distance from the axis of the wheel 2, and the angles between adjacent identification portions 33 are uniform. By making the distances between the respective identification parts 33 and the axis of the wheel 2 uniform, it is ensured that the first identification body 31 can be brought into contact with the respective identification parts 33 when the wheel 2 rotates, and at the same time, by making the angles between the adjacent two identification parts 33 uniform, it is convenient to confirm the setting of the bending angle at the time of production.

Specifically, the distance between each of the identification parts 33 and the axis of the wheel 2 coincides with the radius of the wheel 2, and when one of the identification parts 33 is in contact with the first conductor, the remaining identification parts 33 are in contact with the outer peripheral surface of the wheel 2. By bringing each of the identification portions 33 into contact with the wheel 2, the wheel 2 can be brought into stable contact with each of the identification portions 33 when rotating.

The angle between the adjacent two recognition portions 33 is uniform, so that the setting of the bending angle can be easily confirmed. Illustratively, in one embodiment of the present application, there are 5 recognition portions 33. Namely, the first identifier 31 is a contact, and the second identifier 32 has a thimble 1, a thimble 2, a thimble 3, a thimble 4, and a thimble 5 sequentially arranged. When an operator manipulates the endoscope bending angle recognition device by controlling the handle portion 82 of the endoscope 8 so that the pulling cable 22 adjusts the bending angle of the insertion portion 81, the contact points can be respectively contacted with the ejector pins 1, 2, 3, 4 and 5. The specific operation principle of the endoscope bending angle recognition device when being used with the endoscope 8 can be referred to as fig. 3, and the specific image fed back by the feedback unit 4 can be referred to as fig. 4.

When the operator does not control the pulling cable 22 to bend the insertion portion 81 of the endoscope 8, the contact point is in contact with the thimble 3, the image processor 41 receives a signal from the thimble 3 via the electric connection portion 83, and outputs an image command 3 to the image display 42, and the operator can observe an image in the image display 42 to confirm that the insertion portion 81 of the endoscope 8 is in a natural state with a bending angle of 0 °.

When the operator controls the pulling cable 22 to bend the insertion portion 81 of the endoscope 8 to the right, the contact point is in contact with the thimble 1 or the thimble 2, and when the image processor 41 receives a relevant signal from the thimble 1 through the electrical connection portion 83, the image instruction 1 is output to the image display 42, the operator can observe the image in the image display 42, and confirm that the insertion portion 81 of the endoscope 8 is in a state of bending to the right and the bending angle is 90 °; when image processor 41 receives a signal from needle 2 via electrical connection 83, image command 2 is output to image display 42, and the operator can observe the image on image display 42 to confirm that insertion portion 81 of endoscope 8 is in a rightward bent state and the bending angle is 45 °.

When the operator controls the pulling cable 22 to bend the insertion portion 81 of the endoscope 8 to the left, the contact contacts the thimble 4 or the thimble 5, and when the image processor 41 receives a signal from the thimble 4 through the electrical connection portion 83, the image processor outputs an image command 4 to the image display 42, and the operator can observe the image in the image display 42 to confirm that the insertion portion 81 of the endoscope 8 is in a state of bending to the left and the bending angle is 45 °; when image processor 41 receives a signal from needle 5 via electrical connection 83, image command 5 is output to image display 42, and the operator can observe the image on image display 42 to confirm that insertion portion 81 of endoscope 8 is in a leftward bent state and the bending angle is 90 °.

Referring to fig. 5 and 6, in another embodiment of the present application, the first identifier 31 has a plurality of identification portions 33, the second identifier 32 has a plurality of trigger portions, and as the wheel rotates, different identification portions 33 contact different trigger portions, so that the signal electrical circuit generates different electrical signals.

The first identification body 31 is a switch triggering member, the identification part 33 is an identification switch, and different identification switches are triggered by the switch triggering member along with the rotation of the rotating wheel 2, so that different electric signals are generated by the signal electric circuit.

The switch trigger piece can be an identification thimble. The outer circumferential surface of the rotating wheel 2 is provided with a recognition guide groove 311, a recognition thimble is arranged in the recognition guide groove 311, and the distance between the recognition guide groove 311 and the recognition thimble and the recognition switch are different, so that different response signals (not shown in the figure) are generated by the signal electric circuit. The identification guide groove 311 can guide the identification switch, so that the identification switch can move more stably relative to the rotating wheel 2, and the identification thimble can trigger the identification switch due to being pressed, so that the feedback unit 4 receives corresponding feedback.

Referring to fig. 5 and 6, the switch trigger may also be an identification groove. The outer peripheral surface of the rotating wheel 2 is provided with a recognition guide groove 311, a recognition groove 312 is arranged in the recognition guide groove 311, and the recognition guide groove 311 and the recognition groove 312 are different in distance from the recognition switch, so that different response signals are generated by the signal electric circuit.

Specifically, the recognition guide groove 311 is provided with a plurality of recognition grooves 312, and the recognition switches can be pressed to trigger signals, so that the feedback unit 4 receives feedback of different recognition switches, and an operator can determine the bending angle of the insertion part 81 of the endoscope 8 according to different feedback conditions. The identification switch is one of a mechanical switch (a tact switch, etc.) and an electronic switch (a hall switch, a photoelectric switch, etc.).

More specifically, referring to fig. 6, the recognition guide groove 311 opens on the outer circumferential surface of the wheel 2 and extends a certain distance toward the inside of the wheel 2. The recognition groove 312 opens on the recognition guide groove 311 and extends a distance toward the inside of the wheel 2. When the wheel 2 rotates relative to the mounting member 1, the identification portion 33 can move within the identification guide groove 311 or the identification groove 312.

In one embodiment, the distance between the identification guide slot 311 and the axis of the rotating wheel 2 is greater than the distance between the identification portion 33 and the axis of the rotating wheel 2, and when the identification switch rotates into the identification guide slot 311, the identification switch is in contact with the first identification body 31, and the identification switch is pressed to trigger a signal, so that the feedback unit 4 receives corresponding feedback. The distance of the identification groove 312 from the axis of the wheel 2 is smaller than the distance of the identification portion 33 from the axis of the wheel 2. Therefore, when the identification switch rotates into the identification groove 312, the identification switch and the first identification body 31 can be separated, and the identification switch is not pressed.

In addition, referring to fig. 7, the recognition guide groove 311 has a first arc surface 313 coaxial with the wheel 2, and the recognition portion 33 is smoothly moved relative to the first arc surface 313 while being in contact with the first arc surface 313 by the arc of the first arc surface 313. The identification groove 312 is formed on the first arc surface 313, the identification groove 312 has a second arc surface 314, and the second arc surface 314 is connected with the first arc surface 313. The second arc surface 314 is formed to have a curvature such that the friction between the first identification body 31 and the wheel 2 is reduced when the identification portion 33 is smoothly moved from the identification groove 312 into the identification guide groove 311.

Referring to fig. 5, in one embodiment, the identification switches are spaced uniformly from the axis of the wheel 2, so that the first identification body 31 can contact with each identification switch when the wheel 2 rotates. The inconsistent included angle between two adjacent recognition switches ensures that the condition that a plurality of recognition switches are simultaneously contacted with and separated from the first recognition body 31 can not occur, and ensures the use effect.

For example, referring to fig. 5 and 7, in the above-described embodiment of the present application, 3 recognition portions 33 are provided. That is, the first recognition body 31 has the recognition guide groove 311, the first groove 3121, and the second groove 3122. The second identifier 32 has a first switch 321, a second switch 322 and a third switch 323, where the second switch 322 is located between the first switch 321 and the third switch 323, and an included angle between the first switch 321 and the second switch 322 is smaller than an included angle between the second switch 322 and the third switch 323. When the operator manipulates the endoscope bending angle recognition device by controlling the handle portion 82 of the endoscope 8 so that the pulling cable 22 adjusts the bending angle of the insertion portion 81, the third switch 323 may be always in contact with the recognition guide groove 311, and the first switch 321 and the second switch 322 may be in contact with the recognition guide groove 311 when the wheel 2 is rotated to a specific angle. The specific operation principle of the endoscope bending angle recognition device when being used with the endoscope 8 can be referred to as fig. 8, and the specific image fed back by the feedback unit 4 can be referred to as fig. 9.

When the operator does not control the pulling cable 22 to bend the insertion portion 81 of the endoscope 8, the first switch 321 and the second switch 322 are respectively positioned in the first groove 3121 and the second groove 3122, the third switch 323 is in contact with the recognition guide groove 311, the image processor 41 receives a related signal from the third switch 323 through the electrical connection portion 83, and outputs the image instruction 3 to the image display 42, and the operator can observe the image in the image display 42 to confirm that the insertion portion 81 of the endoscope 8 is in a natural state with a bending angle of 0 °.

When the operator controls the pulling cable 22 to bend the insertion portion 81 of the endoscope 8, referring to fig. 5, when the wheel 2 rotates counterclockwise, the first switch 321 may leave the first groove 3121 and contact the recognition guide groove 311, the second switch 322 may leave the second groove 3122 and enter the first groove 3121, the third switch 323 may continue to contact the recognition guide groove 311, the image processor 41 receives the relevant signals from the first switch 321 and the third switch 323 through the electrical connection portion 83 at this time, and outputs the image command 2 to the image display 42, and the operator may observe the image in the image display 42 to confirm that the insertion portion 81 of the endoscope 8 is in a bent state with a bending angle of 45 °.

When the wheel 2 continues to rotate counterclockwise, the first switch 321 may continue to contact the recognition guide groove 311, the second switch 322 may leave the first groove 3121 and contact the recognition guide groove 311, the third switch 323 may continue to contact the recognition guide groove 311, the image processor 41 may receive related signals from the first switch 321, the second switch 322 and the third switch 323 through the electrical connection portion 83 at this time, and output the image instruction 1 to the image display 42, and the operator may observe the image in the image display 42 to confirm that the insertion portion 81 of the endoscope 8 is in a bent state with a bending angle of 90 °.

Referring to fig. 10 and 11, in still another embodiment of the present application, the identification member 3 is a potentiometer, the potentiometer includes a bracket 34 and a rotating handle 35, the bracket 34 and the rotating handle 35 are respectively disposed on the mounting member 1 and the rotating wheel 2, the first identification body 31 and the second identification body 32 are respectively a movable contact and a resistor, and the movable contact and the resistor are respectively disposed on the rotating handle 35 and the bracket 34.

Specifically, the bracket 34 is fixed to the mount 1 by mounting screws. The rotating wheel 2 is provided with a connecting channel coaxial with the rotating wheel, a fixing cap of the rotating handle 35 penetrates through the bracket 34 and is fixedly inserted into the connecting channel, and the fixing cap is fixed with the rotating wheel 2 in an interference pressing or gluing mode. The fixed knob 35 is coaxial with the runner 2. When the rotating wheel 2 controls the traction cable 22 to adjust the angle of the insertion part 81, the rotating handle 35 can drive the movable contact to rotate along with the rotating wheel 2, so that the movable contact is contacted with different parts of the resistor, different electric signals are generated by the signal electric loop, and further an operator can identify the bending angle of the insertion part 81 according to the display change of the feedback unit 4, so that the endoscope 8 can be used more accurately for focus searching, and the medical safety risk is reduced.

Illustratively, in yet another embodiment of the present application, the first recognition body 31 includes a first contact, a second contact, and a third contact, each disposed on the knob 35, and the first contact is located between the second contact and the third contact, which are electrically connected with the feedback unit 4 through the first conductive wire 351, the second conductive wire 352, and the third conductive wire 353, respectively. The second identification body 32 includes a first resistor 341 and a second resistor 342, and the first resistor 341 and the second resistor 342 are both disposed on the bracket 34. When the potentiometer is in the initial state, the first contact, the second contact and the third contact are all located between the first resistor 341 and the second resistor 342 and do not contact the first resistor 341 and the second resistor 342, so that the potentiometer does not generate an electric signal. When the knob 35 rotates relative to the bracket 34, the second contact or the third contact can be respectively contacted with the first resistor 341 or the second resistor 342, so that the potentiometer generates a corresponding electric signal.

Specifically, the specific operation principle of the endoscope bending angle recognition apparatus in this embodiment when used in cooperation with the endoscope 8 can be referred to fig. 12, and the specific image fed back by the feedback unit 4 can be referred to fig. 13. When the operator does not control the pulling cable 22 to bend the insertion portion 81 of the endoscope 8, none of the first contact point, the second contact point, and the third contact point is in contact with the first resistor 341 and the second resistor 342, the image processor 41 does not receive a signal, and outputs the image command 1 to the image display 42, so that the operator can observe the image in the image display 42, and confirm that the insertion portion 81 of the endoscope 8 is in a natural state in which the bending angle is 0 °.

Referring to fig. 10, when the operator controls the pulling cable 22 to bend the insertion portion 81 of the endoscope 8 to the left direction and rotates the wheel 2 clockwise, the second contact contacts different areas of the first resistor 341, the resistance of the potentiometer changes, the bending angle can be determined according to the change of the resistance, and the image processor 41 outputs a corresponding image command 2 to the image display 42 through the second wire 352 and the electrical connection portion 83, so that the operator can observe the image in the image display 42 and confirm the bending angle and the bending direction of the insertion portion 81 of the endoscope 8.

When the operator controls the pulling cable 22 to bend the insertion portion 81 of the endoscope 8 to the right and rotates the turning wheel 2 counterclockwise, the third contact contacts a different region of the second resistor 342, the resistance value of the potentiometer changes, the bending angle can be determined according to the change amount of the resistance value, and the image processor 41 outputs a corresponding image command 3 to the image display 42 through the third wire 353 and the electrical connection portion 83, so that the operator can observe the image in the image display 42 and confirm the bending angle and the bending direction of the insertion portion 81 of the endoscope 8.

In one embodiment, the mounting member 1 is provided with a receiving groove 12, and the rotor 2 is received in the receiving groove 12. The holding groove 11 is internally provided with a first limiting part 13, the rotating wheel 2 is provided with a second limiting part 23, and the moving range of the second limiting part 23 can be controlled through the first limiting part 13, so that the rotating angle of the rotating wheel 2 is limited.

Referring to fig. 7 and 14, in one embodiment, at least two first limiting portions 13 are disposed in the accommodating groove 12 along the axial direction of the rotating wheel 2, and a second limiting portion 23 on the rotating wheel 2 is located between two adjacent first limiting portions 13. The rotary wheel 2 and the identification piece 3 can be shielded and protected through the accommodating groove 12, meanwhile, the moving range of the second limiting part 23 can be controlled through the two adjacent first limiting parts 13, and then the rotating angle of the rotary wheel 2 is limited, so that the situation that products such as breakage of the traction cable 22 and the like caused by overlarge rotating angle of the rotary wheel 2 are damaged is effectively avoided.

Specifically, the holding groove 12 is provided with a support portion 14 therein, and the fixing passage 11 is provided in the support portion 14. At least two first limiting portions 13 are uniformly provided on the outer peripheral surface of the support portion 14 with the axial direction of the fixing passage 11 as an axis. The bottom surface of the rotating wheel 2 is provided with a second limiting part 23, and the second limiting part 23 is positioned between two adjacent first limiting parts 13. Both ends of the first limiting portion 13 are connected to the supporting portion 14 and the accommodating groove 12, respectively. The movement range of the second limiting portion 23 can be controlled by the adjacent two first limiting portions 13. In addition, the top surface of the supporting part 14 is abutted with the bottom surface of the rotating wheel 2, so that the stability of the rotating wheel 2 in the fixed assembly can be further enhanced.

In another embodiment, at least two second limiting portions 23 are provided on the rotating wheel 2 along the axial direction of the rotating wheel 2, and the first limiting portion 13 in the accommodating groove 12 is located between two adjacent second limiting portions 23 (not shown in the figure). The moving range of the first limiting part 13 can be controlled through the two adjacent second limiting parts 23, so that the rotating angle of the rotating wheel 2 is limited, and the situation that products such as the breakage of the traction cable 22 and the like caused by overlarge rotating angle of the rotating wheel 2 are damaged is effectively avoided.

In one embodiment, the accommodating groove 12 is provided with a positioning portion, the positioning portion and the side wall of the accommodating groove 12 cooperate to form the guiding groove 15, and the traction section 222 of the traction cable 22 is arranged on the guiding groove 15 in a penetrating manner. The traction direction of the traction section 222 can be effectively guided by the guide groove 15. In addition, two positioning parts are provided, two positioning parts can be matched with two side walls of the accommodating groove 12 to form two guide grooves 15, and two traction sections 222 are respectively arranged on the two guide grooves 15 in a penetrating mode. The two traction sections 222 are guided by the two guide grooves 15 respectively, so that the shaking, winding and other conditions between the two traction sections 222 are effectively avoided.

Referring to fig. 1 and 2, in one embodiment, the endoscope bending angle recognition device further includes a control member 5, the control member 5 and the rotating wheel 2 are disposed on two axial sides of the mounting member 1, respectively, and the rotating wheel 2 is in transmission connection with the control member 5, and an axis of the rotating wheel 2 coincides with an axis of the control member 5. The control piece 5 can drive the rotating wheel 2 to rotate in a transmission connection mode, and the rotating wheel 2 and the control piece 5 are coaxial through the rotating wheel 2 and the control piece 5, so that the rotating wheel 2 and the control piece 5 have higher rotation coaxiality, and the stability of a rotation process is further ensured.

Specifically, referring to fig. 2 and 7, a coaxial connection shaft 21 is provided on the bottom surface of the rotating wheel 2, and the connection shaft 21 is inserted into the fixing channel 11 of the mounting member 1, so that the rotating wheel 2 is rotatably connected with the mounting member 1 through the connection shaft 21. The top surface of the control member 5 is provided with a rotating shaft 51, and the rotating shaft 51 is arranged in the fixed channel 11 in a penetrating way and is connected with the rotating wheel 2, so that the control member 5 can drive the rotating wheel 2 to rotate on the mounting member 1. The connecting shaft 21 and the rotating shaft 51 are coaxial with the fixed channel 11, so that the rotating wheel 2 and the control member 5 have higher rotation coaxiality, and the control member 5 can drive the rotating wheel 2 to rotate stably.

The rotary shaft 51 is inserted into the fixed passage 11 and then is fitted into the rotary wheel 2. Wherein, the runner 2 is provided with a connecting channel coaxial with the fixed channel 11, the inner peripheral surface of the connecting channel is provided with a jogging groove, the outer peripheral surface of the rotating shaft 51 is provided with a jogging block matched with the connecting channel, and when the rotating shaft 51 is penetrated in the connecting channel, the jogging block is penetrated in the jogging groove. When the rotating shaft 51 rotates in the connecting channel, the embedded block can rotate along with the rotating shaft and drive the rotating wheel 2 to synchronously rotate.

Referring to fig. 1 and 2, in one embodiment, the rotor 2 is provided with a fixing member 6 in a detachable manner. The fixing piece 6 can fix the traction cable 22 and also can fix the rotating wheel 2 and the control piece 5.

Specifically, the fixing section 221 includes an annular section and two straight line sections provided at both ends of the annular section, respectively. Referring to fig. 2 and 15, a fixing groove 24 is provided on the top surface of the rotating wheel 2, a fixing portion 25 is provided in the fixing groove 24, and an annular section is provided in the fixing groove 24 and abuts against the outer peripheral surface of the fixing portion 25. The fixing member 6 is disposed in the fixing groove 24 and abuts against the fixing portion 25, and an orthographic projection of the fixing member 6 on the fixing groove 24 coincides with an orthographic projection of the annular segment on the fixing groove 24. The annular section is limited by the fixing piece 6, so that the annular section cannot be separated from the turntable, and further the pulling cable 22 is effectively prevented from loosening.

More specifically, the fixing member 6 includes a pad pressing plate 61 and a fastening screw 62, wherein a bottom surface of the pad pressing plate 61 abuts against a top surface of the rotating wheel 2, and a screw of the fastening screw 62 passes through the pad pressing plate 61 and is screwed inside the rotating shaft 51 to fixedly connect the rotating wheel 2 with the control member 5.

In addition, the pad pressing plate 61 is disposed in the fixing groove 24, and the shape of the pad pressing plate 61 is matched with the fixing groove 24. The stability between the fixing member 6 and the rotating wheel 2 can be further enhanced by the cooperation of the cushion pressing plate 61 and the fixing groove 24.

Referring to fig. 1 and 2, in one embodiment, the endoscope bending angle recognition device further includes a locking member 7, where the locking member 7 is disposed on the rotating wheel 2 and abuts against the traction cable 22. By adjusting the abutting force between the locking member 7 and the traction cable 22, the tightness of the traction cable 22 can be adjusted.

Specifically, the fixing section 221 includes an annular section and two straight sections, the two straight sections are respectively disposed at two ends of the annular section, and the two traction sections 222 are respectively connected with the two straight sections. The locking piece 7 comprises a locking body 71 and a locking screw 72, wherein the locking body 71 is provided with a mounting channel, the straight line section is penetrated in the mounting channel, the locking screw 72 is screwed on the locking body 71, and the screw rod of the locking screw 72 is abutted with the straight line section. The holding of the straight line segment is completed through the locking body 71, so that the stability of the fixed segment 221 on the rotating wheel 2 is enhanced, and meanwhile, the tension of the straight line segment is adjusted through the locking screw 72, so that the effect of adjusting the tightness of the traction segment 222 is achieved.

In addition, referring to fig. 1 and 15, a mounting groove 26 is formed on the top surface of the rotating wheel 2, the mounting groove 26 is communicated with the fixing groove 24, and a locking body 71 is arranged in the mounting groove 26 to enhance the stability between the locking member 7 and the rotating wheel 2.

Referring to fig. 16, an embodiment of the present application further provides an endoscope 8, including an insertion portion 81, a handle portion 82, an electrical connection portion 83, and the above-mentioned endoscope bending angle recognition device, where the insertion portion 81, the electrical connection portion 83, and the state recognition device are all disposed on the handle portion 82, and the electrical connection portion 83 and the state recognition device are electrically connected.

Specifically, the mounting member 1 is provided on the handle portion 82, and the traction cable 22 is connected to the insertion portion 81 by welding (or gluing). The mounting element 1 may be a part of the handle 82 or may be designed as a housing of the handle 82 by means of an external design.

More specifically, the endoscope 8 further includes a head end portion 84, and the head end portion 84 is provided on the insertion portion 81 for extending into the inside of the human body for detection. The electrical connection portion 83 is provided on the handle portion 82 and is electrically connected to the head end portion 84, and the detection condition can be transmitted to the image display 42 through the electrical connection portion 83. The identification element 3 is electrically connected to the feedback unit 4 via an electrical connection 83, and a signal of the identification element 3 can be transmitted to the feedback unit 4 via the electrical connection 83.

Further, the insertion portion 81 includes a snake bone bending portion 811 and an insertion tube portion 812 connected to each other. The snake bone bending portion 811 is connected to the head end portion 84, and the snake bone bending portion 811 has two or more degrees of bending freedom for realizing bending and steering of the head end portion 84, and the two traction segments 222 are connected to the snake bone bending portion 811. An insertion tube portion 812 is connected to the handle portion 82, the insertion tube portion 812 being used to provide a desired working length for clinical use of the endoscope 8.

The insertion portion 81 is connected to the wheel 2 by the traction cable 22, and the insertion portion 81 can be bent by the rotation of the wheel 2 so that the electric signal of the signal electric circuit can respond to the change of the identification portion 33 and the identification member 3.

When the endoscope 8 is in use, the control member 5 is shifted to drive the rotating wheel 2 to rotate, so that the traction cable 22 adjusts the bending angle of the insertion portion 81. When the angle of the insertion part 81 is regulated by controlling the traction cable 22 through the rotation of the rotating wheel 2, the first identification body 31 can rotate along with the rotating wheel 2 and is contacted with the different identification parts 33 on the second identification body 32, so that the electric signal of the signal electric loop responds to change, and an operator can identify the bending angle of the insertion part 81 according to the display change of the feedback unit 4, thereby more accurately searching the focus by using the endoscope 8 and reducing the risk of medical safety.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (11)

1. An endoscope bending angle recognition apparatus, comprising:

a runner which is provided in a handle portion of the endoscope and is rotatable about its own axis;

the traction cable is connected with the rotating wheel and the insertion part of the endoscope, and when the rotating wheel rotates, the traction cable is driven to drive the insertion part to change the bending angle;

the locking piece is arranged on the rotating wheel, and the traction cable is locked on the rotating wheel through the locking piece;

the control assembly comprises a rotating shaft which is in transmission connection with the rotating wheel;

the identification piece comprises a first identification body and a second identification body which are respectively arranged on the rotating wheel and the handle, wherein the first identification body and the second identification body are electrically connected with the feedback unit through a signal electric loop, and the first identification body and the second identification body enable the signal electric loop to generate electric signals corresponding to the rotating angle along with the different rotating angles of the rotating wheel.

2. The endoscope bending angle recognition device according to claim 1, wherein the second recognition body has a plurality of recognition portions, and the first recognition body is induced with different ones of the recognition portions as the wheel rotates, so that the signal electric circuit generates electric signals corresponding to the different recognition portions.

3. The endoscope bending angle recognition device according to claim 2, wherein the recognition member is an electrical conductor, the first recognition body or the second recognition body is electrically connected to the feedback unit, and when the rotating wheel rotates to different angles, the first recognition body is in contact with different recognition portions to be electrically connected to the feedback unit through different signal electrical circuits.

4. The endoscope bending angle recognition device according to claim 2, wherein the recognition element is a potentiometer, the potentiometer comprises a bracket and a rotating handle, the bracket and the rotating handle are respectively arranged on the handle part and the rotating wheel, the first recognition body and the second recognition body are respectively a movable contact and a resistor, and the movable contact and the resistor are respectively arranged on the rotating handle and the bracket.

5. The endoscope bending angle recognition device according to claim 1, wherein the first recognition body has a plurality of recognition portions, the second recognition body has a plurality of trigger portions, and different recognition portions are contacted with different trigger portions as the wheel rotates, so that the signal electric circuit generates different electric signals.

6. The endoscope bending angle recognition device according to claim 5, wherein the first recognition body is a switch trigger, the recognition part is a recognition switch, and different recognition switches are triggered by the switch trigger along with rotation of the rotating wheel, so that the signal electric circuit generates different electric signals.

7. The endoscope bending angle identification device of claim 6, wherein the switch trigger is an identification groove or an identification spike.

8. The endoscope bending angle recognition device according to claim 7, wherein a recognition guide groove is provided on an outer circumferential surface of the rotating wheel, the recognition groove is provided in the recognition guide groove, and the recognition guide groove and the recognition groove are different in distance from the recognition switch, so that the signal electric circuit generates different response signals.

9. The endoscope bending angle recognition device according to claim 7, wherein a recognition guide groove is formed in the outer peripheral surface of the rotating wheel, the recognition ejector pin is arranged in the recognition guide groove, and the recognition guide groove and the recognition ejector pin are different in distance from the recognition switch, so that different response signals are generated by the signal electric circuit.

10. The endoscope bending angle identification device of claim 1, wherein the feedback unit comprises an image processor and an image display, the first identification body being electrically connected to the image processor, the image processor being electrically connected to the image display.

11. An endoscope, characterized by comprising an insertion portion, a handle portion, an electrical connection portion, and the endoscope bending angle recognition device according to any one of claims 1 to 10, wherein the insertion portion, the electrical connection portion, and the endoscope bending angle recognition device are all provided on the handle portion, and the electrical connection portion and the endoscope bending angle recognition device are electrically connected.