Torque detection device for bending angle of endoscope insertion tube

Abstract

The invention relates to the technical field of endoscope insertion tube bending angle correction, and provides an endoscope insertion tube bending angle torque detection device comprising the following units: a housing provided with a positioning member connected with a torsion meter; the first clamping piece and the second clamping piece are both connected with the shell; the driving mechanism is connected with the first clamping piece and the second clamping piece and used for controlling the first clamping piece and the second clamping piece to be independently clamped to the two rotating wheels on the endoscope respectively; the torsion meter is used for being connected with the positioning piece; the driving mechanism controls the first clamping piece or the second clamping piece to be clamped to the different rotating wheels respectively, and the torsion piece is used for displaying the torque of the bending angle of the far end of the insertion tube controlled by the different rotating wheels at present. Maintenance personnel can conveniently check the torque when the corrected rotating wheel controls the insertion tube to be bent, the correction efficiency and accuracy are improved, and the corrected rotating wheel controls the torque when the insertion tube is bent to better conform to operation habits of different medical workers.

Description

Technical Field

[0001] The present application relates to the technical field of bending angle correction of an endoscope insertion tube, and in particular to a torque detection device for the bending angle of an endoscope insertion tube. Background Art

[0002] A flexible electronic endoscope is an advanced medical device primarily used for minimally invasive examination and treatment of natural human cavities (such as the digestive tract, respiratory tract, and urinary system) using advanced optical lenses and mechanical devices. Its core features are a flexible, bendable endoscope and electronic imaging technology, providing doctors with intuitive and accurate diagnostic and treatment information.

[0003] Generally, flexible electronic endoscopes include two rotating wheels of different sizes, which are used to control the bending angle of the distal end of the insertion tube in different directions. However, after long-term use, the bending angle of the distal end of the insertion tube controlled by the rotating wheel will change from the operational feel and accuracy when leaving the factory, which often affects the operating experience of medical staff and the progress of the operation. At this time, professional maintenance personnel are required to calibrate and repair the flexible electronic endoscope. However, after the calibration and maintenance process, the rotating wheel is generally adjusted manually, and the torque of the calibrated rotating wheel when rotating to control the bending angle of the distal end of the insertion tube is felt by feeling. The torque of the rotating wheel is not intuitively reflected, resulting in insufficient accuracy after calibration and maintenance. At the same time, each medical staff has different usage habits. The torque of the calibrated rotating wheel, which is manually felt, will deviate greatly from the actual use of the medical staff. Summary of the Invention

[0004] The present application provides a torque detection device for the bending angle of an endoscope insertion tube, which displays the torque of each rotating wheel when controlling the bending of the insertion tube through a torque meter, so that maintenance personnel can quickly check the torque size of the calibrated rotating wheel when controlling the bending of the insertion tube, thereby improving the correction efficiency and accuracy, and making the torque of the calibrated rotating wheel when controlling the bending of the insertion tube more in line with the operating habits of different medical staff.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions: The present application provides a torque detection device for the bending angle of an endoscope insertion tube, comprising: a shell, provided with a positioning piece for connecting to a torque meter; a first clamping piece and a second clamping piece, both connected to the shell; a driving mechanism, connected to the first clamping piece and the second clamping piece, for controlling the first clamping piece and the second clamping piece to independently clamp to two rotating wheels on the endoscope; a torque meter for connecting to the positioning piece; wherein the torque meter is controlled to rotate and can drive the shell to rotate synchronously, the driving mechanism controls the first clamping piece or the second clamping piece to clamp to different rotating wheels respectively, and the torque piece is used to display the torque of the distal bending angle of the insertion tube controlled by the current different rotating wheels.

[0006] As an embodiment, the radial dimensions of the first clamping member and the second clamping member are different. The first clamping member and the second clamping member are coaxially arranged and can move independently along the axial direction of the shell to clamp the corresponding rotating wheel.

[0007] As an embodiment, the driving mechanism includes a driving member and a transmission mechanism connected to the driving member, and the transmission mechanism is respectively connected to the first clamping member and the second clamping member, and is used to control the first clamping member to clamp one of the rotating wheels when the driving member rotates forward, and is used to control the second clamping member to clamp the other rotating wheel when the driving member is reversed, or; when the driving member rotates forward, it is used to control the second clamping member to clamp one of the rotating wheels, and when the driving member is reversed, it is used to control the first clamping member to clamp the other rotating wheel.

[0008] As an embodiment, the transmission mechanism includes a first rack and a second rack, and output shafts are respectively provided at both ends of the driving member, and the two output shafts are coaxially connected. The two output shafts are respectively transmission-connected to the first rack and the second rack, one end of the first rack is connected to the first clamping member, and one end of the second rack is connected to the second clamping member. When the driving member rotates, it can drive the first rack to move toward or away from one end of the shell, and the moving direction of the second rack is opposite to the moving direction of the first rack.

[0009] As an embodiment, the first clamping part includes a first annular portion and at least one first clamping part connected to the first annular portion, the first clamping part protrudes from the first annular portion and is used to clamp with one of the rotating wheels, and the first rack is connected to the first annular portion; the second clamping part includes a second annular portion and at least one second clamping part connected to the second annular portion, the first clamping part protrudes from the second annular portion and is used to clamp with another rotating wheel, and the second rack is connected to the second annular portion.

[0010] As an embodiment, the shell includes a first sub-shell, the inner peripheral wall of the first sub-shell is provided with a positioning portion, the positioning portion is arranged along the axial direction of the shell, the positioning portion is limitedly matched with the first clamping portion, and a part of the first clamping portion is located in the positioning portion.

[0011] As an embodiment, the torque detection device includes a support member connected to the second annular portion; the first sub-shell is provided with a positioning groove connected to the support member.

[0012] As an embodiment, two first limiting components are provided on the first sub-shell and the first clamping part, and the first limiting components are used to limit the moving distance of the first clamping part, and the first limiting components are communicatively connected with the driving part; two second limiting components are provided on the first sub-shell and the supporting part, and the second limiting components are used to limit the moving distance of the second clamping part, and the second limiting components are communicatively connected with the driving part.

[0013] As an embodiment, the housing includes a second sub-shell connected to the first sub-shell, and two guide grooves are provided on one end of the second sub-shell facing the first sub-shell, and the first rack and the second rack are respectively inserted into the two guide grooves.

[0014] As an embodiment, a control switch electrically connected to the driving member is provided on the second sub-shell, and the control switch is used to control the driving member to rotate forward or reverse.

[0015] The technical solution of this application has the following beneficial effects: The torque detection device includes a shell, which is provided with a positioning piece for connecting to a torque meter. The torque meter can be connected to the shell and drive the shell to rotate. When the shell rotates, it can drive other parts in the shell to rotate synchronously; the torque detection device also includes a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are both connected to the shell and can rotate synchronously with the shell; the torque detection device also includes a driving mechanism, the driving mechanism is respectively connected to the first clamping piece and the second clamping piece, and is used to control the first clamping piece and the second clamping piece to independently clamp two different rotating wheels on the endoscope. When the flexible electronic endoscope is repaired by the maintenance personnel, the torque meter is first connected to the positioning piece on the shell, and the first clamping piece is controlled by the driving mechanism. Or the second clamping part is respectively clamped with the corresponding rotating wheel, and then drives the torque meter to rotate, the torque meter will drive the shell to rotate, and the first clamping part or the second clamping part will drive the corresponding rotating wheel to rotate. When the rotating wheel rotates, it will control the bending angle of the distal end of the insertion tube. At this time, the torque of the rotating wheel when controlling the bending of the distal end of the insertion tube will also be displayed on the torque meter, so that maintenance personnel can more intuitively see the torque size of the calibrated rotating wheel to detect whether the calibrated endoscope meets the factory standards, which is convenient for subsequent adjustment, improves the accuracy of the calibrated rotating wheel, and makes the calibrated rotating wheel more in line with the factory standards; and according to the torque value, the torque that meets the operating habits of medical staff can be calibrated more quickly, thereby improving the correction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a torque detection device provided in an embodiment of the present application; Figure 2 Schematic diagram of the structure of the torque detection device provided by the embodiment of the present application from different perspectives; Figure 3 A schematic structural diagram of the torque detection device provided in an embodiment of the present application from another perspective; Figure 4 A top view of a torque detection device provided in an embodiment of the present application; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction; Figure 6 A schematic diagram of the exploded structure of the torque detection device provided in an embodiment of the present application; Figure 7Schematic diagram of the exploded structure of the torque detection device provided in the embodiment of the present application from different perspectives; Figure 8 A schematic diagram of an exploded structure of the torque detection device provided in an embodiment of the present application from another perspective; Figure 9 A schematic diagram of the exploded structure of the torque detection device provided in an embodiment of the present application from another perspective.

[0018] Icons: 1-first clamping member; 11-first annular portion; 12-first clamping portion; 2-torque meter; 3-housing; 31-first sub-housing; 311-positioning portion; 312-sealing plate; 313-positioning groove; 32-second sub-housing; 33-positioning member; 4-rotating wheel; 5-insertion tube; 6-driving mechanism; 61-driving member; 62-first rack; 63-second rack; 64-output shaft; 7-second clamping member; 71-second annular portion; 72-second clamping portion; 8-support member; 9-first limiting assembly; 10-second limiting assembly; 13-control switch. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0021] like Figure 1 and 6As shown, the embodiment of the present application provides a torque detection device for the bending angle of an endoscope insertion tube, the torque detection device includes a shell 3, a positioning member 33 for connecting to the torque meter 2 is provided on the shell 3, the torque meter 2 can be connected to the shell 3 and drive the shell 3 to rotate, and when the shell 3 rotates, it can drive other parts in the shell 3 to rotate synchronously; the torque detection device also includes a first clamping member 1 and a second clamping member 7, the first clamping member 1 and the second clamping member 7 are both connected to the shell 3 and can rotate synchronously with the shell 3; the torque detection device also includes a driving mechanism 6, the driving mechanism 6 is respectively connected to the first clamping member 1 and the second clamping member 7, for controlling the first clamping member 1 and the second clamping member 7 to independently clamp to two different rotating wheels 4 on the endoscope. When the flexible electronic endoscope is repaired by the maintenance personnel, the torque meter 2 is first connected to the shell 3. The first clamping member 1 or the second clamping member 7 is connected to the corresponding rotating wheel 4 through the driving mechanism 6, and then the torque meter 2 is driven to rotate. The torque meter 2 will drive the housing 3 to rotate, and the first clamping member 1 or the second clamping member 7 will drive the corresponding rotating wheel 4 to rotate. When the rotating wheel 4 rotates, it will control the bending angle of the distal end of the insertion tube 5. At this time, the torque of the rotating wheel 4 when controlling the bending of the insertion tube 5 will also be displayed on the torque meter 2, so that the maintenance personnel can more intuitively see the torque size of the calibrated rotating wheel 4 to detect whether the calibrated endoscope meets the factory standards, which is convenient for subsequent adjustment, improves the accuracy of the calibrated rotating wheel, and makes the calibrated rotating wheel more in line with the factory standards; and according to the torque value, the torque that meets the operating habits of medical staff can be calibrated more quickly, thereby improving the correction efficiency.

[0022] Optionally, a general flexible electronic endoscope is provided with two rotating wheels 4, one of which is used to control the upward or downward bending of the distal end of the insertion tube 5, and the other rotating wheel 4 is used to control the left or right bending of the distal end of the insertion tube 5; at the same time, the radial dimensions of the two rotating wheels 4 are also different, and the two rotating wheels 4 control the bending angles of the insertion tube 5 are also different; generally, the large rotating wheel 4 controls the upward or downward bending angle of the distal end of the insertion tube 5, and the small rotating wheel 4 controls the left or right bending angle; and the angles of the gastroscope and the colonoscope when rotating clockwise or counterclockwise are also different.

[0023] Optionally, the torque meter 2 is an ordinary torque meter 2 available on the market; the clamping portion can be a convex column or a groove, which can be adapted to the end of the torque meter 2. If the clamping portion is a convex column structure, it can be designed to be detachably connected to the shell 3, thereby facilitating the replacement of positioning members 33 of different specifications and facilitating adaptation to torque meters 2 of different specifications.

[0024] Optionally, the detachable connection between the positioning member 33 and the housing 3 may be plug-in or snap-in, and the housing 3 may be provided with a plurality of slots of different sizes for the positioning member 33 to be inserted into.

[0025] Optionally, in some cases, medical personnel may also use a torque detection device during actual operation to observe the value displayed on the torque meter 2 .

[0026] Optionally, in the embodiment of the present application, for the convenience of description, the one with a larger radial dimension is defined as the first clamping member 1, and the one with a smaller radial dimension is defined as the second clamping member 7. In fact, the two can be reversed.

[0027] Optionally, when the first clamping member 1 is clamped with one of the rotating wheels 4, the second clamping member 7 is separated from the corresponding rotating wheel 4; when the second clamping member 7 is clamped with one of the rotating wheels 4, the first clamping member 1 is separated from the corresponding rotating wheel 4.

[0028] Optionally, the positioning member 33 is provided at one end of the second sub-shell 32 of the housing 3 .

[0029] Optionally, based on the torque display of the torque meter 2, the maintenance personnel can also more intuitively determine whether the calibrated endoscope meets the usage requirements. For example, the torque range for different endoscope types is also different. Generally, a gastroscope needs to ensure that the torque is within 0.45 to be qualified, and a colonoscope generally needs to ensure that the torque is within 0.5 to be qualified. Of course, there are other types of colonoscopes that ensure that they are qualified within 0.45. Through the above torque range, after the maintenance personnel calibrate the endoscope, the torque detection device of the embodiment of the present application can be used to observe whether the calibrated endoscope meets the standards. Compared with the existing technology through human perception, it can more accurately judge whether the calibrated endoscope is qualified.

[0030] Optionally, the torque detection device of the embodiment of the present application can also adjust the calibrated parameters according to the gender of the medical staff. For example, 0.3N·m and below feels very light, 0.3~0.35N·m feels light, 0.35~0.45N·m feels moderate, and 0.45~0.5N·m feels slightly heavy. If the endoscope to be repaired is used by male medical staff, then during calibration, the torque of the calibrated rotating wheel 4 can be controlled to be above 0.45N·m; if it is a female medical staff, it can be controlled below 0.45N·m; of course, different torque ranges can also be formulated according to the usage habits of different medical staff through the torque detection device of the embodiment of the present application.

[0031] Optionally, the usage habits of medical staff can be collected when they use the endoscope in daily life, so as to determine some data, and then the usage habits of medical staff can be analyzed based on the collected data, and the analysis data can use the average value.

[0032] Optionally, in the embodiment of the present application, the first clamping member 1 and the second clamping member 7 are integrated into the shell 3, that is, one shell 3 can be used to detect the torque of the two rotating wheels 4 respectively. Compared with the first clamping member 1 and the second clamping member 7 being respectively arranged on different shells 3 for detection, the production cost can be reduced.

[0033] like Figure 6 As shown, as an embodiment, the radial dimensions of the first clamping member 1 and the second clamping member 7 are different, and the first clamping member 1 and the second clamping member 7 are coaxially arranged, so as to reduce the volume of the torque detection device and improve space utilization; the first clamping member 1 and the second clamping member 7 can move independently of each other along the axial direction of the shell 3, and are used to clamp the corresponding rotating wheels 4, that is, when the first clamping member 1 is clamped with one of the rotating wheels 4, the second clamping member 7 is away from the other rotating wheel 4, and when the second clamping member 7 is clamped with one of the rotating wheels 4, the first clamping member 1 is away from the other rotating wheel 4.

[0034] Optionally, both the first clamping component 1 and the second clamping component 7 are located inside the housing 3 .

[0035] Optionally, the housing 3 and the first clamping member 1 and the second clamping member 7 may be metal parts or plastic parts.

[0036] Optionally, the second clamping member 7 of the embodiment of the present application is arranged on the inner side of the first clamping member 1, mainly to adapt to the two rotating wheels 4 on the endoscope to facilitate corresponding insertion.

[0037] As an embodiment, the driving mechanism 6 includes a driving member 61 and a transmission mechanism connected to the driving member 61, and the transmission mechanism is respectively connected to the first clamping member 1 and the second clamping member 7, so that the power of the driving member 61 can be transmitted to the first clamping member 1 and the second clamping member 7 through the transmission mechanism; when the driving member 61 rotates forward, it is used to control the first clamping member 1 to clamp one of the rotating wheels 4, and when the driving member 61 is reversed, it is used to control the second clamping member 7 to clamp the other rotating wheel 4, or; when the driving member 61 rotates forward, it is used to control the second clamping member 7 to clamp one of the rotating wheels 4, and when the driving member 61 is reversed, it is used to control the first clamping member 1 to clamp the other rotating wheel 4, so that the first clamping member 1 and the second clamping member 7 can be respectively clamped with the corresponding rotating wheels 4, which is convenient for verifying the torque of the corrected rotating wheel 4.

[0038] Optionally, the driving member 61 may be a stepping motor or a DC motor.

[0039] Optionally, the torque detection device also includes a control system and a power supply. The power supply provides power to the control system and the driving member 61. The control system is electrically connected to the driving member 61. The control system can drive the driving member 61 forward or reverse. The control system and the power supply can both be set in the shell 3. Of course, they can also be set outside the shell 3 through a wire passing through the shell 3.

[0040] like Figures 5 to 7 9, as an embodiment, the transmission mechanism includes a first rack 62 and a second rack 63, and output shafts 64 are respectively provided at both ends of the driving member 61. The two output shafts 64 are coaxially connected, and the two output shafts 64 are respectively connected to the first rack 62 and the second rack 63 for transmission. One end of the first rack 62 is connected to the first clamping member 1, and one end of the second rack 63 is connected to the second clamping member 7. When the driving member 61 rotates, it can drive the first rack 62 to move toward or away from one end of the housing 3. The moving direction of the second rack 63 is opposite to that of the first rack 62. When the first rack 62 is rotated, the second rack 63 is rotated in the opposite direction. When a rack 62 moves toward one end of the shell 3, it is equivalent to driving the first clamping member 1 to move toward one end of the shell 3. At this time, the first clamping member 1 is in a separated state from the corresponding rotating wheel 4; and the second rack 63 moves away from one end of the shell 3, and the second clamping member 7 also moves away from one end of the shell 3. The second clamping member and the corresponding rotating wheel 4 are in a clamping state. When the shell 3 is rotated, the second clamping member 7 can drive the corresponding rotating wheel 4 to rotate; similarly, when the first rack 62 moves away from one end of the shell 3, its working process is the same as above, and will not be repeated here.

[0041] Optionally, one end of the shell 3 includes a cover plate and the other end is an opening. The first rack 62 moves toward one end of the shell 3, which means that the first rack 62 moves toward the cover plate, that is, it also moves away from the rotating wheel 4.

[0042] Optionally, the two output shafts 64 rotate synchronously, so that the first clamping member 1 and the second clamping member 7 can be connected to the corresponding rotating wheels 4 respectively.

[0043] Optionally, gears are respectively provided on the two output shafts 64 , and the two gears are respectively engaged with the first rack 62 and the second rack 63 .

[0044] Optionally, the two gears and the first rack 62 and the second rack 63 may be metal parts or plastic parts.

[0045] Optionally, the first rack 62 and the second rack 63 can be made of thick steel plates or plastic plates during processing, and the tooth shape can be processed by a special machine tool to ensure the hardness and strength of the racks.

[0046] Optionally, the rotation of the driving member 61 can be programmed, that is, when rotating forward, the first rack 62 can be moved toward the rotating wheel 4, and correspondingly, the second rack 63 can be moved away from the rotating wheel 4 and toward one end of the shell 3; when rotating reversely, the first rack 62 can be moved toward one end of the shell 3.

[0047] Optionally, the distance between the end of the housing 3 with the cover plate and the end of the rack must meet the farthest moving distance of the rack, so that the first clamping member 1 or the second clamping member 7 can be completely separated from the corresponding rotating wheel 4.

[0048] Optionally, the rack and the clamping member may be connected by hot melting or by fasteners such as screws.

[0049] Optionally, one end of the output shaft 64 may be connected to the housing 3 via a bearing to facilitate the rotation of the output shaft 64 .

[0050] like Figure 7 As shown, as an embodiment, the first clamping member 1 includes a first annular portion 11 and at least one first clamping portion 12 connected to the first annular portion 11, the first clamping portion 12 protrudes from the first annular portion 11, and is convenient for clamping or separating with one of the rotating wheels 4, and the first rack 62 is connected to the first annular portion 11, so that the power of the driving member 61 can be transmitted to the first clamping member 1 through the first rack 62, which is convenient for controlling the driving member 61; the second clamping member 7 includes a second annular portion 71 and at least one second clamping portion 72 connected to the second annular portion 71, the first clamping portion 12 protrudes from the second annular portion 71, and is convenient for clamping or separating with another rotating wheel 4, and the second rack 63 is connected to the second annular portion 71, so that the power of the driving member 61 can be transmitted to the second clamping member 7 through the second rack 63, which is convenient for controlling the driving member 61.

[0051] Optionally, both the first clamping member 1 and the second clamping member 7 move along the axial direction of the housing 3 to facilitate clamping or separation with the corresponding rotating wheel 4.

[0052] Optionally, a plurality of first clamping portions 12 and a plurality of second clamping portions 72 may be provided.

[0053] Optionally, a general rotating wheel 4 is provided with grooves along the circumference for increasing friction, or a plurality of gaps are provided along the circumference of the rotating wheel 4 to facilitate medical staff to operate the rotation; and the first clamping portion 12 of the embodiment of the present application can be processed into a shape that is compatible with the actual structure of the rotating wheel 4, so as to facilitate the first clamping portion 12 to be axially inserted into the groove or gap and clamped with the rotating wheel 4.

[0054] like Figure 8As shown, as an embodiment, the shell 3 includes a first sub-shell 31, and the inner peripheral wall of the first sub-shell 31 is provided with a positioning portion 311, and the positioning portion 311 is arranged along the axial direction of the shell 3. The positioning portion 311 is limited and cooperated with the first clamping portion 12. On the one hand, it facilitates the assembly of the first clamping part 1 and the positioning portion 311. On the other hand, the positioning portion 311 guides and limits the first clamping part 1 so that the first clamping part 1 can move smoothly. A part of the first clamping part 12 is located in the positioning portion 311, while the other part can move axially to clamp or separate with the rotating wheel 4.

[0055] Optionally, the number of the positioning portions 311 corresponds to the number of the first clamping portions 12 , the plurality of positioning portions 311 are arranged at intervals along the circumference of the housing 3 , and each positioning portion 311 extends along the axial direction of the housing 3 .

[0056] Optionally, the positioning portion 311 is an arc-shaped groove protruding along the inner wall surface of the shell 3, which can guide and limit the first clamping portion 12, so that the first clamping member 1 can move smoothly in the axial direction.

[0057] Optionally, a blocking plate 312 is provided at one end of the positioning portion 311 to limit the first clamping portion 12 , thereby preventing the first clamping member 1 from descending too far.

[0058] Optionally, the housing 3 further includes a second sub-shell 32, so that the housing 3 is configured as two sub-shells that can be snapped together, making it easier to assemble the parts inside.

[0059] like Figures 6 to 9 As shown, as an embodiment, the torque detection device includes a support member 8, which is connected to the second annular portion 71, thereby providing stable support and connection to the second clip 7; the first sub-shell 31 is provided with a positioning groove 313 connected to the support member 8. By setting the positioning groove 313, the support member 8 is provided with a limiting and guiding function. On the one hand, it is convenient to assemble the second clip 7 with the first sub-shell 31. On the other hand, the positioning groove 313 guides and limits the second clip 7, so that the second clip 7 can move smoothly.

[0060] Optionally, the positioning groove 313 extends axially, so that the support member 8 can move axially through the positioning groove 313 .

[0061] Optionally, the support member 8 needs to avoid interference with the driving member 61, and therefore, the support member 8 includes a bending section.

[0062] Optionally, both ends of the support member 8 are respectively inserted into the positioning grooves 313 .

[0063] like Figure 1As shown, as an embodiment, two first limit assemblies 9 are provided on the first sub-shell 31 and the first clamping part 12, and the first limit assemblies 9 are used to limit the moving distance of the first clamping part 1, and the first limit assemblies 9 are communicated with the driving part 61; by setting two first limit assemblies 9, when the first clamping part 1 moves to the highest position or the lowest position, the driving part 61 will receive a signal to stop working, so as to avoid the driving part 61 from continuing to work and easily burning the driving part 61; two second limit assemblies 10 are provided on the first sub-shell 31 and the support part 8, and the second limit assemblies 10 are used to limit the moving distance of the second clamping part 7, and the second limit assemblies 10 are communicated with the driving part 61, and by setting two second limit assemblies 10, when the second clamping part 7 moves to the highest position or the lowest position, the driving part 61 will receive a signal to stop working, so as to avoid the driving part 61 from continuing to work and easily burning the driving part 61.

[0064] Optionally, the two first limiting assemblies 9 can control the highest moving position and the lowest moving position of the first clamping member 1 ; the two second limiting assemblies 10 can control the highest moving position and the lowest moving position of the second clamping member 7 .

[0065] Optionally, the first limiting component 9 may include a magnet and a Hall sensor, wherein the magnet may be arranged at the bottom of one of the first clamping parts 12, and two Hall sensors may be arranged on the first sub-shell 31, and both Hall sensors are communicatively connected to the control system. When the first clamping part 1 moves to the highest position or the lowest position, the magnet will respectively sense the two Hall sensors. At this time, the control system receives the signal and controls the driving part 61 to stop working; at the same time, in order to avoid the two first limiting components 9 from influencing each other, the two first limiting components 9 can be respectively arranged on opposite sides.

[0066] Optionally, if the two Hall sensors are on the same side, one magnet may be provided; if they are on different sides, two magnets may be provided.

[0067] Optionally, the second limiting component 10 has the same structure as the first limiting component 9, including a magnet and a Hall sensor, wherein the magnet can be set at one end of the support member 8, and the two Hall sensors can be set on the first sub-shell 31, and the two Hall sensors are both communicated with the control system. When the second clamping member 7 moves to the highest position or the lowest position, the magnet will respectively sense the two Hall sensors. At this time, the control system receives the signal and controls the driving member 61 to stop working; at the same time, in order to avoid the two second limiting components 10 affecting each other, the two second limiting components 10 can be respectively set on opposite sides.

[0068] Optionally, of course, one of the first limiting components 9 can also be set on the blocking plate 312 of the positioning portion 311. When the first clamping portion 12 is in full contact with the blocking plate 312, the driving member 61 receives a signal to stop working.

[0069] As an embodiment, the shell 3 includes a second sub-shell 32 connected to the first sub-shell 31, and two guide grooves (not shown in the figure) are provided on one end of the second sub-shell 32 facing the first sub-shell 31, and the first rack 62 and the second rack 63 are respectively inserted into the two guide grooves. By providing the guide grooves, the positioning and assembly of the second sub-shell 32 and the first sub-shell 31 can be facilitated, thereby improving the assembly efficiency; at the same time, the guide grooves guide and support the two racks, thereby preventing the racks from shaking during movement, so that the racks can always engage with the gears, thereby improving the stability of the first clip 1 and the second clip 7 during movement.

[0070] Optionally, the sides of the first rack 62 and the second rack 63 that are not engaged with the gear can be fitted into the guide groove, which can be inserted with the first rack 62 and the second rack 63 and extends along the axial direction of the housing 3 .

[0071] like Figure 2 As shown, as an embodiment, a control switch 13 electrically connected to the driving member 61 is provided on the second sub-shell 32. By providing the control switch 13, it is convenient to control the driving member 61 to rotate forward or reverse through a program.

[0072] Optionally, the control switch 13 may be a button type or a touch type. For example, by pressing or touching once, the driving member 61 rotates forward, and by pressing or touching twice in succession, the driving member 61 rotates reversely.

[0073] Optionally, the torque detection device also includes a general control component, which can be set on the shell 3 or outside the shell 3. The general control component is started, and the power supply provides power to each component. The torque meter 2 is connected to the shell 3. The control switch 13 can be pressed or touched, and the driving member 61 rotates to make the first clamping member 1 or the second clamping member 7 respectively clamped with the corresponding rotating wheel 4, drive the torque meter 2, and read the value on the torque meter 2, so as to determine the torque when the calibrated rotating wheel 4 controls the distal end bending of the insertion tube 5; at the same time, the torque can be further calibrated according to the displayed value to match the operating habits of the medical staff.

[0074] Optionally, in some cases, the control switch 13 can also serve as the main switch of the entire torque detection device. For example, when touched or pressed once, the circuit is turned on; when pressed twice, the driving member 61 rotates forward; when pressed three times, the driving member 61 rotates reversely; the above control process can be implemented through programming of existing technology.

[0075] Optionally, the control switch 13 may be a button or a touch switch in the prior art.

[0076] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0077] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

[0078] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A torque detection device for the bending angle of an endoscope insertion tube, characterized in that: include: a housing provided with a positioning member for connecting to the torque meter; A first clamping member and a second clamping member are both connected to the housing; a driving mechanism connected to the first clamping member and the second clamping member, and configured to control the first clamping member and the second clamping member to independently clamp the two rotating wheels on the endoscope; a torque meter, used to be connected to the positioning member; In which, the torque meter is controlled to rotate and can drive the shell to rotate synchronously. The driving mechanism controls the first clamping part or the second clamping part to be respectively clamped to different rotating wheels. The torque part is used to display the torque of the current different rotating wheels to control the distal bending angle of the insertion tube.

2. The torque detection device according to claim 1, characterized in that: The radial dimensions of the first clamping member and the second clamping member are different. The first clamping member and the second clamping member are coaxially arranged and can move independently along the axial direction of the housing to clamp the corresponding rotating wheel.

3. The torque detection device according to claim 1 or 2, characterized in that: The driving mechanism includes a driving member and a transmission mechanism connected to the driving member, wherein the transmission mechanism is connected to the first clamping member and the second clamping member respectively, and is used to control the first clamping member to clamp one of the rotating wheels when the driving member rotates forward, and to control the second clamping member to clamp the other rotating wheel when the driving member rotates reversely, or; When the driving member rotates forward, it is used to control the second clamping member to clamp one of the rotating wheels. When the driving member rotates backward, it is used to control the first clamping member to clamp the other rotating wheel.

4. The torque detection device according to claim 3, characterized in that: The transmission mechanism includes a first rack and a second rack, and output shafts are respectively provided at both ends of the driving member. The two output shafts are coaxially connected, and the two output shafts are respectively transmission-connected to the first rack and the second rack. One end of the first rack is connected to the first clamping member, and one end of the second rack is connected to the second clamping member. When the driving member rotates, it can drive the first rack to move toward or away from one end of the shell, and the moving direction of the second rack is opposite to the moving direction of the first rack.

5. The torque detection device according to claim 4, characterized in that: The first clamping member includes a first annular portion and at least one first clamping portion connected to the first annular portion, the first clamping portion protruding from the first annular portion and configured to be clamped with one of the rotating wheels, and the first rack is connected to the first annular portion; The second clamping member includes a second annular portion and at least one second clamping portion connected to the second annular portion. The first clamping portion protrudes from the second annular portion and is used to clamp with another rotating wheel. The second rack is connected to the second annular portion.

6. The torque detection device according to claim 5, characterized in that: The housing includes a first sub-shell, the inner peripheral wall of the first sub-shell is provided with a positioning portion, the positioning portion is arranged along the axial direction of the housing, the positioning portion is limitedly matched with the first clamping portion, and a part of the first clamping portion is located in the positioning portion.

7. The torque detection device according to claim 6, characterized in that: The torque detection device includes a support member connected to the second annular portion; The first sub-shell is provided with a positioning groove connected to the support member.

8. The torque detection device according to claim 7, characterized in that: Two first limiting components are provided on the first sub-shell and the first clamping portion, the first limiting components are used to limit the moving distance of the first clamping member, and the first limiting components are communicatively connected with the driving member; Two second limiting components are provided on the first sub-shell and the supporting member. The second limiting components are used to limit the moving distance of the second clamping member. The second limiting components are communicatively connected with the driving member.

9. The torque detection device according to claim 6 or 7, characterized in that: The housing includes a second sub-shell connected to the first sub-shell. Two guide grooves are provided on one end of the second sub-shell facing the first sub-shell. The first rack and the second rack are respectively inserted into the two guide grooves.

10. The torque detection device according to claim 9, characterized in that: The second sub-shell is provided with a control switch electrically connected to the driving member, and the control switch is used to control the driving member to rotate forward or reverse.

Images