Dial assembly of endoscope, endoscope handle, and endoscope

Abstract

Disclosed are a dial assembly of an endoscope, an endoscope handle, and an endoscope, which relate to the technical field of medical instruments. A dial assembly (100) of an endoscope comprises: an adjustment disc (120) provided with a guide groove (121); a dial body (110) coaxially connected to a pull wire reel; and several retractable lever members (130) extending outwards from the dial body (110), with free ends of the several lever members (130) slidably engaged with the guide groove (121) separately. The dial body (110) and the guide groove (121) are configured to have a coaxial state and an eccentric state; the adjustment disc (120) can move relative to the dial body (110) to change the magnitude of the eccentric distance between the dial body (110) and the guide groove (121); the movement of the adjustment disc (120) can also enable the dial body (110) and the guide groove (121) to switch between the coaxial state and the eccentric state, which can solve the technical problem in endoscopes of being unable to adjust the length of the lever member (130) according to individual differences.

Description

An endoscope's dial assembly, endoscope handle, and endoscope. Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an endoscope dial assembly, an endoscope handle, and an endoscope. Background Technology

[0002] An endoscope is a commonly used medical device that can directly enter the body's natural passages to provide doctors with ample diagnostic information for disease treatment. In the case of a digestive endoscope, because the active bending section has a larger diameter, greater traction force is required during bending. Therefore, the circumferential dimension of the traction rope wheel inside the endoscope's control handle is reduced. This is achieved by sacrificing the rotation angle of the dial to reduce the effort required to drive the active bending section, thus necessitating a larger dial rotation angle.

[0003] Meanwhile, to further improve the effort-saving effect of the dial, the dials of existing gastrointestinal endoscopes are relatively large. Furthermore, when the doctor holds the handle, their thumb and ring finger must wrap around the dial at corresponding angles, coordinating their efforts to drive its rotation. Current endoscopes cannot adjust the length of the lever on the dial according to individual differences. Due to individual variations, such as hand size and finger dexterity, doctors' hand manipulation abilities differ significantly, particularly between individuals and genders, hindering effective endoscope operation.

[0004] Therefore, providing an endoscope with a dial assembly, an endoscope handle, and an endoscope whose lever length can be adjusted according to individual differences is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This invention discloses an endoscope dial assembly, an endoscope handle, and an endoscope, in order to solve the technical problem in related endoscopes that cannot adjust the length of the dial according to individual differences.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] In a first aspect, a dial assembly for an endoscope is disclosed, comprising:

[0008] The adjusting disc is equipped with a guide groove;

[0009] The main body of the dial wheel is coaxially connected to the traction rope wheel; the main body of the dial wheel extends outward with several telescopic levers, and the free ends of the levers slide in cooperation with the guide grooves respectively.

[0010] The dial body and guide groove are configured to have a coaxial state and an eccentric state; when in the eccentric state, during the rotation of the dial body, the free end of the lever moves toward or away from the axis of the dial body.

[0011] The adjustment disc can move relative to the dial body to change the eccentricity between the dial body and the guide groove; the movement of the adjustment disc can also switch the dial body and the guide groove between a coaxial state and an eccentric state.

[0012] The technical solution adopted in this invention can achieve the following beneficial effects:

[0013] In the initial use state, the dial assembly of the endoscope in this application has the dial body and guide groove coaxial. In this coaxial state, the lengths of several levers remain fixed during the rotation of the dial body. The operator moves the adjustment dial to make the dial body and guide groove eccentric. In this eccentric state, during the rotation of the dial body, the free ends of several levers move towards or away from the axis of the dial body, increasing the lever arm length and thus reducing effort. Furthermore, the operator can move the adjustment dial according to their needs to change the eccentricity between the dial body and guide groove, adjust the maximum extension of the levers, and select a suitable lever arm length. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is an axial view of the endoscope handle of the present invention;

[0016] Figure 2 is an enlarged view of point A in Figure 1;

[0017] Figure 3 is an axial view of the concentric state of the dial assembly of the present invention.

[0018] Figure 4 is an axial view of the eccentric state of the dial assembly of the present invention;

[0019] Figure 5 is a schematic diagram of the structure of the telescopic sleeve of the present invention;

[0020] Figure 6 is an axial view of the locking component of the present invention;

[0021] Figure 7 is a schematic diagram of the circular guide groove of the adjustment disc in this invention;

[0022] Figure 8 is a schematic diagram of the elliptical structure of the guide groove of the adjusting disc in this invention;

[0023] Figure 9 is a schematic diagram of the structure of the adjustment disc of the present invention with mounting holes;

[0024] Figure 10 is a schematic diagram of the structure of the first guide portion and the second guide portion of the present invention;

[0025] Figure 11 is a schematic diagram of the structure of the fixing rod of the present invention in some embodiments;

[0026] Figure 12 is a schematic diagram of the structure of the fixing rod of the present invention in some embodiments.

[0027] In the picture:

[0028] 100-Dial assembly, 110-Dial body, 120-Adjusting disc, 121-Guide groove, 1211-First guide part, 1212-Second guide part, 122-Slide groove, 123-Mounting hole, 130-Dial lever, 131-Dial lever body, 132-Telescopic sleeve, 1321-Opening, 1322-Anti-slip structure, 133-Fixing rod, 1331-Spherical structure, 140-Locking element;

[0029] 200-Endoscope Handle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0033] The applicant discovered during use that, for digestive endoscopes, the larger diameter of the active bending section necessitates greater traction force during bending. Consequently, the circumferential dimension of the traction rope wheel within the endoscope's control handle is reduced, sacrificing the rotation angle of the dial to achieve a more effortless drive of the active bending section. This necessitates a larger dial rotation angle. Furthermore, to further enhance the effort-saving effect of the dial, existing digestive endoscopes use relatively large dials, requiring the doctor to use their thumb and ring finger to wrap around the dial at corresponding angles while holding the handle, coordinating force to drive its rotation. Current endoscopes cannot adjust the length of the lever on the dial according to individual differences. Due to individual variations, such as hand size and finger dexterity, doctors' hand manipulation abilities differ significantly, particularly between individuals and genders, hindering effective endoscope operation.

[0034] The following description, in conjunction with Figures 1 to 12, details an endoscope dial assembly 100, an endoscope handle 200, and an endoscope provided in this application, through specific embodiments and application scenarios.

[0035] Some embodiments of this application provide an endoscope dial assembly 100, as shown in Figures 2-4, which includes an adjustment disc 120 and a dial body 110.

[0036] As shown in Figures 2-4, the dial body 110 is coaxially connected to the traction rope wheel. In this embodiment, the traction rope wheel is located inside the endoscope handle 200, and the traction rope is wound around the traction rope wheel. The dial body 110 is located outside the endoscope handle 200, and its end passes through the endoscope handle 200 and is coaxially connected to the traction rope wheel. By rotating the dial body 110, the traction rope wheel can be rotated synchronously, thereby causing the traction rope to move back and forth.

[0037] As shown in Figures 2-4, the dial body 110 has several levers 130 extending outwards. Each lever 130 serves as a lever arm for rotating the dial body 110, allowing the operator to rotate the dial body 110 more easily. In use, the operator holds the endoscope handle 200 with their palm at the base of their thumb and forefinger, and uses any two of their thumb, index finger, middle finger, ring finger, or little finger to move the distal end of the lever 130, thereby rotating the dial body 110.

[0038] In this embodiment, the number of levers 130 can be two, three, four or more, and can be flexibly set according to usage requirements.

[0039] In this embodiment, the angle between any two adjacent levers 130 is equal, which allows the operator to more precisely control the rotation angle and speed of the dial body 110 when rotating the dial body 110 by moving the levers 130, thereby improving the accuracy of operation.

[0040] As shown in Figures 3 and 4, the lever 130 is a telescopic structure. The free end of the lever 130 can move toward or away from the dial body 110, allowing the length of the lever 130 to change, thereby altering the length of the lever arm that rotates the dial body 110.

[0041] As shown in Figures 2-4, the adjustment disc 120 has a guide groove 121, and the free ends of several levers 130 slide in the guide groove 121. The guide groove 121 and the dial body 110 are configured to have both coaxial and eccentric states, as shown in Figures 3 and 4.

[0042] When in an eccentric state, during the rotation of the dial body 110, the free ends of several levers 130 move toward or away from the axis of the dial body 110, thereby increasing the length of the lever arm and achieving the effect of saving effort.

[0043] When in a coaxial state, the extension of the lever 130 is the same at any two symmetrical positions of the guide groove 121, which is the same as that of the existing endoscope handle 200.

[0044] In some embodiments, as shown in FIG7, the guide groove 121 is circular in shape. When the guide groove 121 and the dial wheel body 110 are coaxial, the lengths of the plurality of levers 130 remain constant during the rotation of the dial wheel body 110.

[0045] In some embodiments, as shown in Figure 8, the guide groove 121 is elliptical in shape. When the guide groove 121 and the dial body 110 are coaxial, during the rotation of the dial body 110, the free end of the lever 130 moves toward or away from the axis of the dial body 110.

[0046] In this embodiment, the guide groove 121 is preferably circular, so that the dial assembly 100 can also have the same state as a conventional endoscope, which can meet the needs of operators with greater strength.

[0047] As shown in Figures 3 and 4, the adjustment disc 120 can move relative to the dial body 110 to change the eccentricity between the dial body 110 and the guide groove 121. The operator can move the adjustment disc 120 according to their needs to change the eccentricity between the dial body 110 and the guide groove 121, adjust the maximum extension of the lever 130, select a suitable lever arm length, and thus better rotate the dial body 110.

[0048] Correspondingly, by moving the adjustment disc 120, the dial body 110 and the guide groove 121 can be switched between a coaxial state and an eccentric state.

[0049] In some embodiments, as shown in Figures 7 and 8, the adjustment disk 120 is provided with a slide groove 122, which extends radially along the adjustment disk 120. The dial wheel body 110 slides in conjunction with the slide groove 122, thereby achieving the purpose of the adjustment disk 120 being movable relative to the dial wheel body 110.

[0050] In some embodiments, as shown in FIG9, the adjusting disk 120 is provided with a plurality of mounting holes 123 in the radial direction, and the dial wheel body 110 is plugged into both the traction rope wheel and the adjusting disk 120. The dial wheel body 110 is pulled out from the traction rope wheel and then installed at different mounting holes 123 on the adjusting disk 120, so that the adjusting disk 120 can move relative to the dial wheel body 110.

[0051] In this embodiment, the adjustment disk 120 is preferably provided with a sliding groove 122. Compared with providing several mounting holes 123 on the adjustment disk 120, providing a sliding groove 122 makes it easier to move the adjustment disk 120 and is closer to the actual use scenario. Secondly, it allows the adjustment disk 120 to be steplessly adjusted, with a larger adjustable range, making it suitable for use by more different individual operators.

[0052] As shown in Figure 7, the adjustment disc 120 is rotatable relative to the dial body 110. In the eccentric state, the guide groove 121 has its farthest point P1 relative to the dial body 110. During the rotation of the dial body 110, compared to other positions of the lever 130, the lever 130 has the greatest extension when its free end is at the farthest point P1. The farthest point P1 of the guide groove 121 is collinear with the extension direction of the guide groove 121. Therefore, by rotating the adjustment disc 120, the position of the slide 122 is changed, thereby changing the position of the lever 130 at its maximum extension. When the operator holds the endoscope handle 200, by rotating the adjustment disc 120, the lever 130 with the maximum extension can be positioned to correspond to any one of the thumb, index finger, middle finger, ring finger, and little finger, satisfying the usage habits of different operators.

[0053] As shown in Figures 2-4 and 6, a locking element 140 is also included to restrict the movement and rotation of the adjustment disc 120. During surgery, if the position and angle of the adjustment disc 120 change, it can easily disrupt the muscle memory gradually developed by the operator while using the endoscope, requiring readjustment to the dial assembly 100, which can affect the surgical procedure. Therefore, this embodiment includes a locking element 140 to prevent changes in the position and angle of the adjustment disc 120 during surgery, ensuring the smooth progress of the operation.

[0054] Correspondingly, by releasing the locking element 140, the position and angle of the adjusting disc 120 can be changed.

[0055] In this embodiment, the adjustment disk 120 is disposed between the endoscope handle 200 and the dial body 110. One end of the locking member 140 is inserted into the slide groove 122 of the adjustment disk 120 along the axis of the dial body 110, thereby using friction to restrict the sliding and rotation of the adjustment disk 120.

[0056] As shown in Figures 2-4, the free end of the lever 130 extends to the outside of the adjustment disc 120. When the operator holds the endoscope handle 200, because the free end of the lever 130 extends to the outside of the adjustment disc 120, the operator's fingers can easily touch the lever 130 and thus actuate it. Conversely, if the free end of the lever 130 were located inside the adjustment disc 120, the operator would need to deliberately bend the tip of their fingers inward to touch the lever 130 when holding the endoscope handle 200. During the procedure, this prolonged bending of the fingertips leads to greater fatigue and is not conducive to prolonged use by the operator.

[0057] As shown in Figures 2-4, the lever 130 includes a lever body 131 and a telescopic sleeve 132. The proximal end of the lever body 131 is connected to the dial body 110, and the distal end is slidably sleeved with the telescopic sleeve 132. By sliding the telescopic sleeve 132 on the lever body 131, the length of the lever 130 is changed, thereby adjusting the length of the lever arm when rotating the dial body 110.

[0058] As shown in Figures 3-5, the telescopic sleeve 132 has a actuating surface with an anti-slip structure 1322. When the operator holds the endoscope handle 200, the operator's fingers are in direct contact with the actuating surface of the telescopic sleeve 132. Therefore, by providing the anti-slip structure 1322 on the actuating surface, the operator can avoid relative slippage between the operator's fingers and the actuating surface as much as possible when actuating the lever 130, thus allowing the operator to better operate the dial assembly 100.

[0059] In this embodiment, the anti-slip structure 1322 is a plurality of wavy protrusions; naturally, the anti-slip structure 1322 can also be other shapes, and this embodiment does not limit this.

[0060] As shown in Figure 5, the telescopic sleeve 132 is provided with a fixing rod 133. The end of the fixing rod 133 extends into the guide groove 121 and slides in cooperation with the guide groove 121. During the rotation of the dial body 110, the guide groove 121 guides the movement of the telescopic sleeve 132, making the movement trajectory of the telescopic sleeve 132 the same as the shape of the guide groove 121. In the eccentric state, through the interference between the guide groove 121 and the fixing rod 133, the telescopic sleeve 132 can move toward or away from the axis of the dial body 110 during rotation, thereby linking the adjusting disc 120 with several levers 130. By changing the position of the adjusting disc 120, the maximum extension of the levers 130 can be changed, making it easier for the operator to easily and quickly adjust the length of the levers 130 to their preferred range during surgery.

[0061] In some embodiments, as shown in FIG11, the fixing rod 133 is linear. In this state, the pattern formed by the lines connecting the fixing rods 133 is the same as the trajectory of the guide groove 121.

[0062] In some embodiments, as shown in FIG12, the fixing rod 133 has a bent structure. In this state, the pattern formed by the lines connecting the plurality of fixing rods 133 covers or is covered by the trajectory of the guide groove 121.

[0063] Preferably, a spring is provided between the telescopic sleeve 132 and the dial body 110. The spring effectively prevents the telescopic sleeve 132 from falling off the dial body 131.

[0064] As shown in Figures 5, 11, and 12, the end of the fixing rod 133 extending into the guide groove 121 has a spherical structure 1331. During the rotation of the dial body 110, due to the presence of the spherical structure 1331, the contact area between the fixing rod 133 and the guide groove 121 is small, thereby reducing the friction force when the dial body 110 rotates, allowing the operator to rotate the dial body 110 more easily.

[0065] As a preferred embodiment, as shown in FIG10, the guide groove 121 has a first guide portion 1211 and a second guide portion 1212, the curvature of the second guide portion 1212 being less than the curvature of the first guide portion 1211. In an eccentric state, a plurality of levers 130 are configured such that when the elongation of one lever 130 is greater than the elongation of the other levers 130, the free end of that lever 130 engages with the second guide portion 1212.

[0066] During the rotation of the dial body 110, when one of the levers 130 reaches its maximum extension, that lever 130 corresponds precisely to one of the operator's fingers, and the free end of the lever 130 with the maximum extension is located within the second guide portion 1212. Because the curvature of the second guide portion 1212 is smaller, the displacement of the free end of the lever 130 is smaller during its movement within the second guide portion 1212 compared to its movement within the first guide portion 1211; that is, the reduction in lever arm is smaller.

[0067] In actual use, when the operator flicks the lever 130, it is not just a single flick, but a continuous flick within a certain range. Therefore, by setting a second guide portion 1212 with a smaller slope, the lever 130 maintains a longer lever arm within the range of the second guide portion 1212, further reducing the force required for the operator to drive the dial body 110 to rotate.

[0068] In some embodiments, there is one first guide portion 1211 and one second guide portion 1212, and the two ends of the first guide portion 1211 are respectively connected to the two ends of the second guide portion 1212.

[0069] In some embodiments, there are two first guide portions 1211 and two second guide portions 1212, and the two first guide portions 1211 and the two second guide portions 1212 are alternately connected.

[0070] As shown in Figure 5, the telescopic sleeve 132 has an opening 1321 on the end face facing the dial body 110. The width of the opening 1321 along the axial direction of the dial body 110 is greater than or equal to the width of the dial body 110 along its own axial direction.

[0071] In the eccentric state, the guide groove 121 has its farthest point P1 relative to the dial body 110. Naturally, the guide groove 121 also has its closest point P2 relative to the dial body 110, as shown in Figure 7. The closer the end of the groove 122 is to the closest point P2, the greater the maximum extension of the lever 130 and the larger the lever arm. Therefore, by providing an opening 1321 on the end face of the telescopic sleeve 132 facing the dial body 110, the dial body 110 can be embedded in the opening 1321, making the end of the groove 122 as close as possible to the closest point P2 of the guide groove 121, thereby maximizing the maximum extension of the lever 130 and increasing the lever arm.

[0072] As shown in Figure 4, there is a gap between the adjustment disc 120 and the dial body 110, and the width of the gap along the axial direction of the dial body 110 is greater than or equal to the width between the bottom of the opening 1321 and the bottom of the telescopic sleeve 132. When the telescopic sleeve 132 moves toward the axis of the dial body 110 and contacts the dial body 110, the bottom part of the telescopic sleeve 132 can move within the gap between the adjustment disc 120 and the dial body 110, thereby avoiding motion interference between the adjustment disc 120 and the dial body 110 and the telescopic sleeve 132.

[0073] Some embodiments of this application also provide an endoscope handle 200, as shown in FIG1, including a dial assembly 100.

[0074] Some embodiments of this application also provide an endoscope, including an endoscope handle 200.

[0075] The endoscope used in this application embodiment is preferably a digestive endoscope. However, the endoscope can also be a bronchoscope, nephroscope, esophagoscope, gastroscope, otoscope, rhinoscope, oral endoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc.

[0076] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0077] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A dial assembly for an endoscope, characterized in that, include: The adjusting disc is equipped with a guide groove; The dial wheel body is coaxially connected to the traction rope wheel; the dial wheel body extends outward with several telescopic levers, and the free ends of the levers slide in cooperation with the guide grooves respectively. The dial body and the guide groove are configured to have a coaxial state and an eccentric state; when in the eccentric state, during the rotation of the dial body, the free end of the lever moves toward or away from the axis of the dial body. The adjustment disc can move relative to the dial body to change the eccentricity between the dial body and the guide groove; the movement of the adjustment disc can also switch the dial body and the guide groove between a coaxial state and an eccentric state.

2. The dial assembly of an endoscope according to claim 1, characterized in that, The adjusting disc is provided with a sliding groove that extends radially along the adjusting disc; the dial body slides in conjunction with the sliding groove.

3. The dial assembly of an endoscope according to claim 2, characterized in that, The adjusting disc can rotate relative to the dial body to change the position of the slide groove; And / or, it also includes a locking element for restricting the movement and rotation of the adjustment disc.

4. The dial assembly of an endoscope according to claim 1, characterized in that, The free ends of several of the aforementioned levers extend to the outside of the adjustment disc.

5. The dial assembly of an endoscope according to claim 1, characterized in that, The lever assembly includes a lever body and a telescopic sleeve; The telescopic sleeve is slidably fitted onto the distal end of the lever body; the telescopic sleeve is provided with a fixing rod, the end of the fixing rod extending into the guide groove and slidingly engaging with the guide groove.

6. The dial assembly of an endoscope according to claim 5, characterized in that, The end of the fixing rod extending into the guide groove has a spherical structure.

7. The dial assembly of an endoscope according to claim 1, characterized in that, The guide groove has a first guide portion and a second guide portion, wherein the curvature of the second guide portion is less than that of the first guide portion; When in an eccentric state, the plurality of levers are configured such that when the elongation of one of the levers is greater than the elongation of the other levers, the free end of the lever is engaged with the second guide portion.

8. The dial assembly of an endoscope according to claim 5, characterized in that, The telescopic sleeve has an opening on its end face facing the dial body, and the width of the opening along the axial direction of the dial body is greater than or equal to the width of the dial body along its own axial direction. There is a gap between the adjusting disc and the dial body; the width of the gap along the axial direction of the dial body is greater than or equal to the width between the bottom of the opening and the bottom of the telescopic sleeve.

9. An endoscope handle, characterized in that, Includes the dial assembly of the endoscope according to any one of claims 1-8.

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

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