Endoscope thumbwheel assembly, endoscope handle and endoscope

Abstract

The present invention relates to the technical field of medical instruments, and discloses a thumbwheel assembly of an endoscope, an endoscope handle, and an endoscope. The thumbwheel assembly comprises a first thumbwheel body and a second thumbwheel body; the first thumbwheel body has a plurality of retractable first levers extending outward, and the second thumbwheel body has a plurality of retractable second levers extending outward; the plurality of first levers are configured such that when the elongation of one of the first levers is greater than the elongation of the other first levers, the free end of the first lever faces between the cable end and the gripping end of the endoscope handle; the plurality of second levers are configured such that when the elongation of one of the second levers is greater than the elongation of the other second levers, the free end of the second lever faces the button area of ​​the endoscope handle. The endoscope handle comprises a thumbwheel assembly. The endoscope comprises an endoscope handle. The present invention can solve the technical problem of the difficulty in rotating the thumbwheel in the endoscope in the related art through the above technical solution.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a thumbwheel assembly of an endoscope, an endoscope handle and an endoscope. Background Art

[0002] An endoscope is a commonly used medical device that can directly enter the natural channels of the human body and provide doctors with sufficient diagnostic information to treat diseases. In the case of an endoscope used as a digestive endoscope, two dials are usually provided to meet the requirement that the active bending section of the endoscope can be bent in four directions.

[0003] Since the active bending section of the digestive scope has a larger diameter, it requires a greater traction force when bending. Therefore, the circumferential size of the traction rope pulley in the corresponding endoscope control handle becomes smaller, and the purpose of saving effort in driving the active bending section is achieved by sacrificing the rotation angle of the dial wheel. Therefore, this also requires the dial wheel to rotate at a larger angle, making it difficult to rotate the dial wheel.

[0004] Therefore, providing a thumbwheel assembly, an endoscope handle and an endoscope that are convenient for rotating the thumbwheel is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The invention discloses a thumbwheel assembly, an endoscope handle and an endoscope, so as to solve the technical problem that the thumbwheel of the endoscope in the related art is laborious to rotate.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] In a first aspect, a thumbwheel assembly of an endoscope is disclosed, comprising:

[0008] The first thumbwheel body and the second thumbwheel body are coaxially connected to the traction rope wheel respectively; a plurality of retractable first thumbwheel rods are extended outwardly from the first thumbwheel body, and a plurality of retractable second thumbwheel rods are extended outwardly from the second thumbwheel body; the second thumbwheel body is arranged close to the endoscope handle, and the first thumbwheel body is arranged far from the endoscope handle;

[0009] The plurality of first lever members are configured such that: following the rotation of the first dial body, the free ends of the plurality of first lever members move toward or away from the axis of the first dial body; when the elongation of one of the first lever members is greater than the elongation of the other first lever members, the free end of the first lever member moves toward between the cable end and the grip end of the endoscope handle;

[0010] The plurality of second lever members are configured as follows: following the rotation of the second dial wheel body, the free ends of the plurality of second lever members move toward or away from the axis of the second dial wheel body; when the elongation of one of the second lever members is greater than the elongation of the other second lever members, the free end of the second lever member faces the button area of ​​the endoscope handle.

[0011] In some embodiments, further comprising a first adjustment disk and a second adjustment disk;

[0012] The first adjusting disk is provided with a first guide groove, and the free ends of the first lever members are slidably matched with the first guide groove;

[0013] The second adjusting disk is provided with a second guide groove, and the free ends of a plurality of second lever members are slidably matched with the second guide groove.

[0014] In some solutions, the free ends of the first lever members all extend to the outside of the first adjustment disk;

[0015] The free ends of the second lever members all extend to the outside of the second adjusting disk.

[0016] In some embodiments, the first adjustment disk and the second adjustment disk are located between the first thumbwheel body and the second thumbwheel body.

[0017] In some aspects, the first adjustment disk and the second adjustment disk are non-rotatable relative to each other.

[0018] In some embodiments, a limiting member is further included to limit the rotation of the first adjusting disk and the second adjusting disk.

[0019] In some embodiments, during the rotation of the second dial wheel body, the free end of the second dial rod does not exceed the button area of ​​the endoscope handle.

[0020] In some solutions, the first adjustment disk can be moved relative to the first thumbwheel body to change the size of the eccentricity between the first thumbwheel body and the first guide groove;

[0021] The second adjusting disk can move relative to the second thumbwheel body to change the eccentricity of the second thumbwheel body and the second guide groove.

[0022] In a second aspect, an endoscope handle is disclosed, comprising the thumbwheel assembly of the endoscope in the first aspect.

[0023] In a third aspect, an endoscope is disclosed, comprising the endoscope handle in the second aspect.

[0024] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0025] The thumbwheel assembly of the endoscope of the present application drives the traction rope pulley to rotate by rotating the first thumbwheel body and the second thumbwheel body. During the rotation of the first thumbwheel body, the free ends of several first thumbwheel members move toward or away from the axis of the first adjustment disk. There is always one first thumbwheel member with the longest length compared to the other first thumbwheel members, that is, the force arm when rotating the first thumbwheel body is the longest. By turning the first thumbwheel member, the first thumbwheel body can be rotated more easily. During the rotation of the second thumbwheel body, the free ends of several second thumbwheel members move toward or away from the axis of the second adjustment disk. There is always one second thumbwheel member with the longest length compared to the other second thumbwheel members, that is, the force arm when rotating the second thumbwheel body is the longest. By turning the second thumbwheel member, the second thumbwheel body can be rotated more easily.

[0026] When the operator is in use, the base of the palm is against the area between the cable end and the grip end of the endoscope handle, and the palm holds the area behind the endoscope handle. At this time, the thumb of the operator just passes through the area between the cable end and the grip end of the endoscope handle, and the other four fingers pass through the button area of ​​the endoscope handle. The first lever with the largest elongation among all the first levers just faces the area between the cable end and the grip end of the endoscope handle, corresponding to the thumb of the operator, making it convenient for the operator to use the thumb to move the first lever with the least effort; the second lever with the largest elongation among all the second levers just faces the button area of ​​the endoscope handle, corresponding to at least one of the index finger, middle finger and ring finger of the operator, making it convenient for the operator to use at least one of the index finger, middle finger and ring finger to move the second lever with the least effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a front view of the endoscope of the present invention;

[0029] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0030] Figure 3 is an axial view of the endoscope of the present invention;

[0031] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0032] Figure 5The axis view of the thumbwheel assembly of the present invention is Figure 1 ;

[0033] Figure 6 The axis view of the thumbwheel assembly of the present invention is Figure 2 ;

[0034] Figure 7 This is a schematic diagram of the matching relationship between the first adjustment disk, the second adjustment disk and the limiter Figure 1 ;

[0035] Figure 8 This is a schematic diagram of the matching relationship between the first adjustment disk, the second adjustment disk and the limiter Figure 2 ;

[0036] Fig. 9 It is the axial view of the limiter;

[0037] Fig.10 is an axial view of the locking piece;

[0038] Fig.11 It is an axial view of the telescopic sleeve.

[0039] In the figure:

[0040] 100-wheel assembly, 110-first wheel body, 120-second wheel body, 130-first lever, 140-second lever, 150-first adjusting plate, 151-first guide groove, 152-first slide groove, 160-second adjusting plate, 161-second guide groove, 162-second slide groove, 171-lever body, 172-telescopic sleeve, 1721-opening, 1722-anti-slip structure, 173-fixing rod, 1731-spherical structure, 180-locking member, 190-limiting member, 191-mounting seat, 192-plug-in portion, 193-protrusion;

[0041] 200 - endoscope handle, 210 - cable end, 220 - grip end, 230 - button area. DETAILED DESCRIPTION

[0042] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0045] The applicant has found through users that, in the case of an endoscope used as a digestive endoscope, two thumbwheels are usually provided to meet the requirement that the active bending section of the endoscope can be bent in four directions. Since the active bending section of the digestive endoscope has a larger diameter, a greater traction force is required when bending, and thus the circumferential size of the traction rope wheel in the corresponding endoscope control handle becomes smaller, and the purpose of driving the active bending section with less effort is achieved by sacrificing the thumbwheel rotation angle. Therefore, this also requires the thumbwheel to rotate at a larger angle, making the thumbwheel rotation more laborious.

[0046] The following is combined with Figures 1 to 11 , an endoscope thumbwheel assembly 100, an endoscope handle 200 and an endoscope provided in the present application are described in detail through specific embodiments and their application scenarios.

[0047] Some embodiments of the present application provide a thumbwheel assembly 100 of an endoscope, such as Figure 2 and Figure 4 As shown, it includes a first dial body 110 , a second dial body 120 , a first adjustment disk 150 and a second adjustment disk 160 .

[0048] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the first dial body 110 and the second dial body 120 are coaxially connected to the traction rope wheel disc. Specifically, there are two traction rope wheels, each of which is wound with a traction rope and is coaxially arranged inside the endoscope handle 200. The first dial body 110 and the second dial body 120 are coaxially arranged outside the endoscope handle 200. The end of the first dial body 110 passes through the endoscope handle 200 and is connected to one of the traction rope wheels, and the end of the second dial body 120 passes through the endoscope handle 200 and is connected to the other traction rope wheel disc.

[0049] By rotating the first dial body 110, one of the traction rope wheels can be driven to rotate, so that the traction rope moves back and forth, and the active bending section of the endoscope is bent in two directions. By rotating the second dial body 120, another traction rope wheel can be driven to rotate, so that the traction rope moves back and forth, and the active bending section of the endoscope is bent in the other two directions. By rotating the first dial body 110 and the second dial body 120, the active bending section of the endoscope body can be bent in four directions, so that the active bending section of the endoscope body can more easily enter the patient's intestines.

[0050] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a plurality of retractable first lever members 130 extend outwardly from the first dial body 110 , and a plurality of retractable second lever members 140 extend outwardly from the second dial body 120 .

[0051] During the rotation of the first dial body 110, the free ends of the first dial members 130 move toward or toward the axis of the first adjustment disk 150. As the first dial members 130 are extended or shortened, at a certain position, there is always a first dial member 130 whose extension is greater than that of the other first dial members 130. At this time, the operator dials the first dial member 130 with the largest extension, and the force arm for driving the first dial body 110 to rotate is the longest, so that the first dial body 110 can be easily rotated. Similarly, at a certain position, there is always a second dial member 140 whose extension is greater than that of the other second dial members 140. At this time, the operator dials the second dial member 140 with the largest extension, and the force arm for driving the second dial body 120 to rotate is the longest, so that the second dial body 120 can be easily rotated.

[0052] In this embodiment, the number of the first lever members 130 and the number of the second lever members 140 may be two, three, four or more, and may be flexibly set according to usage requirements.

[0053] In this embodiment, if Figure 5 and Figure 6As shown, the angle between any two adjacent first lever members 130 is equal, and the angle between any two adjacent second lever members 140 is also equal, so that the operator can more accurately control the rotation angle and speed of the first dial body 110 and the second dial body 120 when rotating the first dial body 110 and the second dial body 120 by shifting the first dial member 130 and the second dial member 140, thereby improving the accuracy of the operation.

[0054] In this embodiment, if Figure 5 and Figure 6 As shown, the free end of the first lever 130 extends to the outside of the first adjustment disk 150, and the free end of the second lever 140 extends to the outside of the second adjustment disk 160. When the operator holds the endoscope handle 200, since the free end of the first lever 130 extends to the outside of the first adjustment disk 150, and the free end of the second lever 140 extends to the outside of the second adjustment disk 160, the operator's fingers can easily touch the first lever 130 and the second lever 140, and then move the first lever 130 and the second lever 140. On the contrary, if the free end of the first lever 130 is located outside the first adjustment disk 150, and the free end of the second lever 140 is located inside the second adjustment disk 160, when the operator holds the endoscope handle 200, the tips of the fingers need to be deliberately bent inward so that they can touch the first lever 130 and the second lever 140. During the operation, the tips of the fingers are bent for a long time, resulting in a stronger feeling of fatigue, which is not conducive to long-term use by the operator.

[0055] like Figure 2 and Figure 4 As shown, when the extension amount of one of the first lever members 130 is greater than the extension amount of the other first lever members 130, the free end of the first lever member 130 faces between the cable end 210 and the grip end 220 of the endoscope handle 200. When the extension amount of one of the second lever members 140 is greater than the extension amount of the other second lever members 140, the free end of the second lever member 140 faces the button area 230 of the endoscope handle 200.

[0056] When the operator is using the endoscope handle 200, the base of the palm of the operator's hand is pressed against the area between the cable end 210 and the grip end 220, and the palm of the operator's hand holds the back of the endoscope handle 200. At this time, the operator's thumb just passes through the area between the cable end 210 and the grip end 220 of the endoscope handle 200, and the other four fingers pass through the button area 230 of the endoscope handle 200. The first lever member 130 with the largest elongation among all the first lever members 130 is just facing between the cable end 210 and the gripping end 220 of the endoscope handle 200, corresponding to the thumb of the operator, making it convenient for the operator to use the thumb to move the first lever member 130 with the least effort; the second lever member 140 with the largest elongation among all the second lever members 140 is just facing the button area 230 of the endoscope handle 200, corresponding to at least one of the index finger, middle finger and ring finger of the operator, making it convenient for the operator to use at least one of the index finger, middle finger and ring finger to move the second lever member 140 with the least effort.

[0057] like Figure 5-Figure 8 As shown, the first adjusting plate 150 is provided with a first guide groove 151, and the free ends of the first lever members 130 are slidably matched with the first guide groove 151. The second adjusting plate 160 is provided with a second guide groove 161, and the free ends of the second lever members 140 are slidably matched with the second guide groove 161. The first guide groove 151 and the first pull wheel body 110, and the second guide groove 161 and the second pull wheel body 120 are configured to have a coaxial state and an eccentric state.

[0058] When in the eccentric state, the first guide groove 151 guides the distal ends of the first lever members 130. By utilizing the interference between the distal ends of the first lever members 130 and the first guide groove 151, the distal ends of the first lever members 130 can move toward or away from the axis of the first lever body 110 during the rotation of the first dial body 110, thereby achieving a labor-saving effect by increasing the length of the lever arm. Similarly, the second guide groove 161 also guides the distal ends of the second lever members 140. By utilizing the interference between the distal ends of the second lever members 140 and the second guide groove 161, the distal ends of the second lever members 140 can move toward or away from the axis of the second dial body 120 during the rotation of the second dial body 120, thereby achieving a labor-saving effect by increasing the length of the lever arm.

[0059] When in the coaxial state, the first lever 130 has the same extension amount at any two symmetrical positions of the first guide slot 151, and the second lever 140 has the same extension amount at any two symmetrical positions of the second guide slot 161. This arrangement is the same as the existing endoscope handle 200.

[0060] In this embodiment, if Figure 5 and Figure 6 As shown, the first lever member 130 and the second lever member 140 have the same structure, and both include a lever body 171 and a telescopic sleeve 172. The proximal end of the lever body 171 is connected to the first dial body 110 and the second dial respectively, and the distal end is slidably sleeved with the telescopic sleeve 172. The telescopic sleeve 172 slides on the lever body 171 to change the length of the first lever member 130 and the second lever member 140, thereby adjusting the length of the force arm when the first dial body 110 and the second dial body 120 are rotated.

[0061] like Fig.11 As shown, the telescopic sleeve 172 has a toggle surface, and the toggle surface has an anti-skid structure 1722. When the operator holds the endoscope handle 200, the operator's fingers are in direct contact with the toggle surface of the telescopic sleeve 172. Therefore, the anti-skid structure 1722 is provided on the toggle surface. When the operator toggle the first lever 130 and the second lever 140, the anti-skid structure 1722 is provided to avoid relative sliding between the operator's fingers and the toggle surface as much as possible, thereby allowing the operator to better operate the thumbwheel assembly 100.

[0062] In this embodiment, the anti-skid structure 1722 is a plurality of wave-shaped protrusions 193; of course, the anti-skid structure 1722 may also be in other shapes, which is not limited in this embodiment.

[0063] like Fig.11 As shown, the telescopic sleeve 172 is provided with a fixing rod 173, and the ends of the fixing rod 173 extend into the first guide groove 151 and the second guide groove 161 respectively, and slide in cooperation with the first guide groove 151 and the second guide groove 161. During the rotation of the first thumbwheel body 110 and the second thumbwheel body 120, the first guide groove 151 and the second guide groove 161 guide the movement of the telescopic sleeve 172, so that the movement trajectory of the telescopic sleeve 172 is the same as the shape of the first guide groove 151 or the second guide groove 161. When in the eccentric state, due to the interference between the first guide groove 151, the second guide groove 161 and the fixing rod 173, the telescopic sleeve 172 can move toward or away from the axis of the first dial body 110 and the second dial body 120 during the rotation of the first dial body 110 and the second dial body 120, thereby linking the first adjusting disk 150 with the plurality of first lever members 130, and the second adjusting disk 160 with the plurality of second lever members 140. By changing the positions of the first adjusting disk 150 and the second adjusting disk 160, the maximum extension amounts of the first lever member 130 and the second lever member 140 can be changed, so that the operator can more easily and quickly adjust the lengths of the first lever member 130 and the second lever member 140 to the range suitable for himself during the operation.

[0064] Preferably, springs are respectively provided between the telescopic sleeve 172 and the first dial body 110, and between the telescopic sleeve 172 and the second dial body 120. The springs can well prevent the telescopic sleeve 172 from falling off the lever body 171.

[0065] like Fig.11 As shown, the end of the fixing rod 173 extending into the first guide groove 151 and the second guide groove 161 has a spherical structure 1731. During the rotation of the first dial body 110 and the second dial body 120, due to the existence of the spherical structure 1731, the contact area between the fixing rod 173 and the first guide groove 151 and the second guide groove 161 is small, thereby reducing the friction force when the first dial body 110 and the second dial body 120 rotate, so that the operator can rotate the first dial body 110 and the second dial body 120 more easily.

[0066] like Figure 7 and Figure 8 As shown, the first adjusting disk 150 can move relative to the first paddle wheel body 110 to change the eccentricity of the first paddle wheel body 110 and the first guide slot 151; the second adjusting disk 160 can move relative to the second paddle wheel body 120 to change the eccentricity of the second paddle wheel body 120 and the second guide slot 161.

[0067] The operator can move the first adjustment disk 150 and the second adjustment disk 160 according to his own usage requirements, change the eccentricity of the first dial body 110 and the first guide groove 151 and the eccentricity of the second dial body 120 and the second guide groove 161, adjust the maximum extension of the first lever member 130 and the second lever member 140, and select a suitable length of the lever arm, so as to better rotate the first lever body 171 and the second lever body 171.

[0068] Accordingly, by moving the first adjusting disk 150 and the second adjusting disk 160 , the first pulley body 110 and the first guide slot 151 can be switched between the coaxial state and the eccentric state, and the second pulley body 120 and the second guide slot 161 can be switched between the coaxial state and the eccentric state.

[0069] In this embodiment, if Figure 7 and Figure 8 As shown, the first adjusting disk 150 is provided with a first slide groove 152, which extends in the radial direction of the first adjusting disk 150, and the first dial body 110 is slidably matched with the slide groove, thereby achieving the purpose of the first adjusting disk 150 being able to move relative to the first dial body 110. The second adjusting disk 160 is provided with a second slide groove 162, which extends in the radial direction of the second adjusting disk 160, and the second dial body 120 is slidably matched with the slide groove, thereby achieving the purpose of the second adjusting disk 160 being able to move relative to the second dial body 120.

[0070] In this embodiment, if Fig.11 As shown, the end surfaces of the telescopic sleeves 172 facing the first and second dial bodies 110 and 120 are provided with openings 1721 , and the axial widths of the openings 1721 along the first and second dial bodies 110 and 120 are greater than or equal to the axial widths of the first and second dial bodies 110 and 120 .

[0071] In the eccentric state, the first guide groove 151 has the farthest point relative to the first pull wheel body 110, and the second guide groove 161 has the farthest point relative to the second pull wheel body 120. As a matter of course, the first guide groove 151 has the closest point relative to the first pull wheel body 110, and the second guide groove 161 has the closest point relative to the second pull wheel body 120. The closer the end of the first slide groove 152 and the end of the second slide groove 162 are to the closest point, the greater the maximum extension of the first lever 130 and the second lever 140, and the greater the lever arm. Therefore, by setting an opening 1721 on the end surface of the telescopic sleeve 172 facing the first dial body 110 and the second dial body 120, the first dial body 110 and the second dial body 120 can be embedded in the opening 1721, so that the end of the first slide groove 152 is as close as possible to the nearest point of the first guide groove 151, and the end of the second slide groove 162 is as close as possible to the nearest point of the second guide groove 161, thereby increasing the maximum extension of the first lever member 130 and the second lever member 140 as much as possible to increase the lever arm.

[0072] like Figure 5 and Figure 6 As shown, there is a first gap between the first adjusting disk 150 and the first paddle wheel body 110, and there is a second gap between the second adjusting disk 160 and the second paddle wheel body 120. The width of the first gap and the second gap along the axial direction of the first paddle wheel body 110 is greater than or equal to the width between the bottom of the opening 1721 and the bottom of the telescopic sleeve 172. When a plurality of telescopic sleeves 172 move toward the axis of the first paddle wheel body 110 and the second paddle wheel body 120 and contact the first paddle wheel body 110 and the second paddle wheel body 120, a portion of the telescopic sleeve 172 can move within the first gap and the second gap, thereby avoiding motion interference between the first adjusting disk 150 and the first paddle wheel body 110, and between the second adjusting disk 160 and the second paddle wheel body 120 and the telescopic sleeve 172.

[0073] like Figure 1-Figure 4 As shown, the first thumbwheel body 110 and the second thumbwheel body 120 are disposed on the same side of the endoscope handle 200 , the second thumbwheel body 120 is disposed close to the endoscope handle 200 , and the first thumbwheel body 110 is disposed away from the endoscope handle 200 .

[0074] When the operator holds the endoscope handle 200, the base of the palm of the hand is against the cable end 210 and the grip end 220 of the endoscope handle 200, and the palm holds the back of the endoscope handle 200. In this state, the thumb is extended from the cable end 210 and the grip end 220 of the endoscope handle 200 to a greater extent, and the first dial body 110 is arranged farther from the endoscope handle 200 than the second dial body 120, so the thumb of the operator can move the first lever 130 more naturally. The other four fingers of the operator are extended from the button area 230 of the endoscope handle 200 to a shorter extent, and the second dial body 120 is arranged close to the endoscope handle 200, so that at least one of the index finger, middle finger and ring finger of the operator can move the second lever 140 more naturally.

[0075] In this embodiment, the first pulley body 110 extends a first transmission shaft toward the endoscope handle 200, and the second pulley body 120 extends a second transmission shaft toward the endoscope handle 200. The first transmission shaft is connected to one of the traction rope sheaves, and the second transmission shaft is connected to the other traction rope sheave. The second transmission shaft is a hollow structure, and the inner diameter is larger than the diameter of the first transmission shaft, so that the first transmission shaft can pass through the second transmission shaft, thereby realizing the coaxial connection between the first pulley body 110 and the second pulley body 120.

[0076] In this embodiment, if Fig.10 As shown, it also includes a locking piece 180, which has a mounting shaft extending toward the endoscope handle 200. The first transmission shaft also has a hollow structure, and the inner diameter is larger than the diameter of the mounting shaft, so that the mounting shaft can pass through the first transmission shaft and connect with the endoscope handle 200 to realize the rotational connection between the first thumbwheel body 110 and the second thumbwheel body 120 and the endoscope handle 200.

[0077] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the first adjustment disk 150 and the second adjustment disk 160 are located between the first dial body 110 and the second dial body 120. By arranging the first adjustment disk 150 and the second adjustment disk 160 between the first dial body 110 and the second dial body 120, the second dial body 120 can be arranged closer to the endoscope handle 200, thereby better facilitating at least one of the other index finger, middle finger and ring finger of the operator to move the second lever 140 more naturally.

[0078] like Figure 7 and Figure 8As shown, the first adjustment disk 150 and the second adjustment disk 160 cannot rotate relative to each other. The rotation of the first adjustment disk 150 will cause the orientation of the first lever member 130 with the largest elongation among the plurality of first lever members 130 to change, thereby affecting the operator's thumb to contact the first lever member 130 with the largest elongation. Similarly, the rotation of the second adjustment disk 160 will cause the orientation of the second lever member 140 with the largest elongation among the plurality of second lever members 140 to change, thereby affecting the operator's index finger, middle finger, and ring finger to contact the second lever member 140 with the largest elongation.

[0079] like Fig. 9 As shown, a limiter 190 is also included, which is used to limit the rotation of the first adjustment disk 150 and the second adjustment disk 160. By setting the limiter 190, the first adjustment disk 150 and the second adjustment disk 160 will not rotate relative to each other, so that the first lever 130 with the largest elongation is always directed toward the cable end 210 and the grip end 220 of the endoscope handle 200, corresponding to the thumb of the operator, and the second lever 140 with the largest elongation is just directed toward the button area 230 of the endoscope handle 200, corresponding to at least one of the index finger, middle finger and ring finger of the operator.

[0080] Specifically, Figure 5-Figure 9 As shown, the stopper 190 includes a mounting seat 191 and a plug-in portion 192. The mounting seat 191 is L-shaped and has a vertical portion and a horizontal portion. The vertical portion is used to connect with the endoscope handle 200, and the horizontal portion is parallel to the outer wall of the endoscope handle 200. The horizontal portion is provided with protrusions 193 on both sides along the axial direction of the first dial body 110, respectively. The first adjustment disk 150 and the second adjustment disk 160 are respectively abutted on both sides of the horizontal portion along the axial direction of the first dial body 110, and the two protrusions 193 enter the first slide groove 152 and the second slide groove 162 respectively. The width of the first slide groove 152 and the second slide groove 162 is the same as the diameter of the protrusion 193, so that the protrusion 193 plays a guiding role in the sliding of the first adjustment disk 150 and the second adjustment disk 160. The horizontal portion has a mounting groove, and the plug-in portion 192 is detachably connected to the mounting groove. When the plug-in portion 192 is fixed in the mounting groove, the plug-in portion 192 uses friction force to limit the relative movement and rotation of the first adjustment disk 150 and the second adjustment disk 160 .

[0081] Correspondingly, the two protrusions 193 are penetrated in the axial direction respectively, so that the first transmission shaft, the second transmission shaft and the installation shaft can pass through the protrusions 193 .

[0082] like Figure 2 and Figure 4 As shown, during the rotation of the second dial wheel body 120 , the free end of the second dial rod 140 does not exceed the button area 230 of the endoscope handle 200 .

[0083] When the operator holds the endoscope handle 200, the four fingers extending from the key area 230 of the endoscope handle 200 are also used to operate the keys of the endoscope handle 200. During the rotation of the second dial wheel body 120, the free end of the second lever 140 does not exceed the key area 230 of the endoscope handle 200, so that the operator can move his fingers freely when operating the keys without worrying about the fingers extending too long and accidentally touching the second lever 140, which is more convenient for the operator to use during surgery.

[0084] Some embodiments of the present application also provide an endoscope handle 200, such as Figure 1 and Figure 3 As shown, a thumbwheel assembly 100 is included.

[0085] Some embodiments of the present application also provide an endoscope, including an endoscope handle 200.

[0086] The endoscope of the embodiment of the present application is preferably a digestive scope. As a matter of course, the endoscope can also be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. It should be noted that, in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "include one..." do not exclude the presence of other identical elements in the process, method, article or device including the element.

[0087] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0088] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thumbwheel assembly for an endoscope, characterized in that: include: The first thumbwheel body and the second thumbwheel body are coaxially connected to the traction rope wheel respectively; the first thumbwheel body has a plurality of retractable first thumbwheel rods extending outwardly, and the second thumbwheel body has a plurality of retractable second thumbwheel rods extending outwardly; the second thumbwheel body is arranged close to the endoscope handle, and the first thumbwheel body is arranged far away from the endoscope handle; The plurality of first lever members are configured such that: following the rotation of the first dial body, the free ends of the plurality of first lever members move toward or away from the axis of the first dial body; when the elongation of one of the first lever members is greater than the elongation of the other first lever members, the free end of the first lever member moves toward between the cable end and the grip end of the endoscope handle; The plurality of second lever members are configured such that: following the rotation of the second dial wheel body, the free ends of the plurality of second lever members move toward or away from the axis of the second dial wheel body; when the elongation of one of the second lever members is greater than the elongation of the other second lever members, the free end of the second lever member faces the button area of ​​the endoscope handle; Also includes a first adjustment disk and a second adjustment disk; The first adjusting disk is provided with a first guide groove, and the free ends of the first lever members are slidably matched with the first guide groove; The second adjusting disk is provided with a second guide groove, and the free ends of the second lever members are slidably matched with the second guide groove.

2. The thumbwheel assembly of an endoscope according to claim 1, characterized in that: The free ends of the first lever members all extend to the outside of the first adjusting disk; The free ends of the second lever members all extend to the outside of the second adjusting disk.

3. The thumbwheel assembly of an endoscope according to claim 1, characterized in that: The first adjusting disk and the second adjusting disk are located between the first dial body and the second dial body.

4. The thumbwheel assembly of an endoscope according to claim 1, characterized in that: The first adjusting disk and the second adjusting disk are non-rotatable relative to each other.

5. The thumbwheel assembly of an endoscope according to claim 4, characterized in that: It also includes a limiting member for limiting the rotation of the first adjusting disk and the second adjusting disk.

6. The thumbwheel assembly of an endoscope according to claim 1, characterized in that: When the second dial wheel body is rotating, the free end of the second dial rod does not exceed the button area of ​​the endoscope handle.

7. The thumbwheel assembly of an endoscope according to claim 1, characterized in that: The first adjusting disk can move relative to the first thumbwheel body to change the eccentricity of the first thumbwheel body and the first guide groove; The second adjusting disk can move relative to the second thumbwheel body to change the eccentricity of the second thumbwheel body and the second guide groove.

8. An endoscope handle, characterized in that: A thumbwheel assembly for an endoscope comprising the invention as described in any one of claims 1 to 7.

9. An endoscope, characterized in that: Includes the endoscope handle as described in claim 8.

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