A traction rope tension adjustment mechanism, endoscope handle and endoscope

Abstract

The present invention provides a traction rope tension adjustment mechanism, an endoscope handle and an endoscope, which belong to the technical field of endoscopes. It includes a fixed base, an adjustment base, a sleeve and a sliding member. The fixed base and the adjustment base are both fixedly installed in the handle of the endoscope. The fixed base is located at the distal end of the traction wheel and has a traction channel for the traction rope to pass through, and the distal end of the traction channel is a fixed end; the adjustment base is located at the distal end of the fixed base, and the adjustment base has at least two mounting grooves, and the wall surface of the mounting groove close to the fixed base is an adjustment surface; the sleeve is used to be sleeved outside the traction rope, and the sliding member is fixed to the sleeve. The sliding member is used to be assembled into any mounting groove, and the sliding member is slidably matched with the adjustment surface. The sliding member can slide along the adjustment surface from the opening of the mounting groove toward the bottom of the groove, and the sliding path of the sliding member is an arc with the fixed end as the center of the circle. In the process of assembling the sliding member of the adjustment mechanism provided by the present application, the tension of the traction rope can be kept stable.

Description

Technical Field

[0001] The invention belongs to the technical field of endoscopes, and in particular relates to a traction rope tension adjustment mechanism, an endoscope handle and an endoscope. Background Art

[0002] As a medical device, the insertion part of the endoscope can enter the human body to take images of the lesions and provide doctors with sufficient diagnostic information to treat the disease.

[0003] The distal end of the insertion part is the active bending section, and a traction wheel is provided in the endoscope handle, and a traction rope is connected between the traction wheel and the active bending section. Due to the irregularity of the human body cavity, when the active bending section enters different human cavities, it is necessary to rotate the traction wheel, thereby pulling the traction rope to control the bending of the active bending section, and adaptively adjust the bending angle of the active bending section to adapt to different cavities.

[0004] The endoscope handle is also provided with a tension adjustment mechanism for adjusting the tension of the traction rope to ensure the operational flexibility and accuracy of the bending angle of the active bending section. However, in the existing tension adjustment mechanism, after the traction rope is adjusted to a preset tension, the tension of the traction rope will change during the process of fixing the adjustment mechanism, resulting in the final tension of the traction rope not being the preset tension. Summary of the invention

[0005] The purpose of this application is to provide a traction rope tension adjustment mechanism, an endoscope handle and an endoscope to solve the above-mentioned technical problems existing in the prior art.

[0006] This application is implemented as follows:

[0007] In the first aspect, an embodiment of the present application provides a traction rope tension adjustment mechanism, which is applied to an endoscope, and includes a fixed base, an adjustment base, a sleeve and a sliding member. The fixed base and the adjustment base are both fixedly installed in the handle of the endoscope. The fixed base is located at the distal end of the traction wheel and has a traction channel for the traction rope to pass through. The distal end of the traction channel is a fixed end, and the fixed end is used to position and cooperate with the traction rope in the circumferential direction of the traction rope; the adjustment base is located at the distal end of the fixed base, and the adjustment base has at least two mounting grooves, and the wall surface of the mounting groove close to the fixed base is the adjustment surface; the sleeve is used to be sleeved onto the outside of the traction rope, and the sliding member is fixed to the sleeve. The sliding member is used to be assembled into any mounting groove, and the sliding member is slidably matched with the adjustment surface. The sliding member can adjust the surface to slide from the opening of the mounting groove toward the bottom of the mounting groove, and the sliding path of the sliding member is an arc with the fixed end as the center.

[0008] In a second aspect, an embodiment of the present application provides an endoscope handle, comprising the traction rope tension adjustment mechanism provided in the embodiment of the first aspect.

[0009] In a third aspect, an embodiment of the present application provides an endoscope, including the endoscope handle provided in the embodiment of the second aspect.

[0010] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0011] In the present application, the sliding member is fixed to the outside of the sleeve, and the tension of the traction rope is adjusted by changing the position of the sleeve on the adjustment base; the distal end of the traction channel is set as the fixed end, and the traction rope is restricted by the fixed end so that the position of the traction rope at the fixed end can be kept stable; and the sliding member is set to slide with the adjustment surface of the mounting groove. In the process of the sliding member sliding from the opening of the mounting groove toward the bottom of the mounting groove, the sliding path of the sliding member is an arc with the fixed end as the center, and the distance between the sliding member and the fixed end can remain unchanged, thereby ensuring that the tension of the traction rope can be kept stable in the process of sliding the sliding member from the opening of the mounting groove to the mounting groove for fixing; so that in the process of moving the sliding member between different mounting grooves to adjust the tension of the traction rope, as long as the sliding member is moved to the mounting groove at a suitable position and contacts the corresponding adjustment surface, and the traction rope is adjusted to a preset tension, the tension of the traction rope will not change in the process of fixing the sliding member to the mounting groove, and the tension of the traction rope can always maintain the preset tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention 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.

[0013] Figure 1 is a schematic diagram of the overall structure of the tension adjustment mechanism provided in some embodiments of the present application;

[0014] Figure 2 This application is about Figure 1 Detailed view of point A;

[0015] Figure 3 is a cross-sectional view of a tension adjustment mechanism provided in some embodiments of the present application Figure 1 ;

[0016] Figure 4 This application is about Figure 3 Detail of point B;

[0017] Figure 5 is a schematic diagram of the structure of a fixed base provided in some embodiments of the present application;

[0018] Figure 6This is a schematic diagram of the cooperation between the sliding member and the adjustment base provided in some embodiments of the present application. Figure 1 ;

[0019] Figure 7 is a schematic diagram of the disassembly of a sliding member and an adjustment base provided in some embodiments of the present application;

[0020] Figure 8 is a schematic diagram of the adjustment process of the tension adjustment mechanism provided in some embodiments of the present application;

[0021] Fig. 9 This is a schematic diagram of the cooperation between the sliding member and the adjustment base provided in some embodiments of the present application. Figure 2 ;

[0022] Fig.10 This is a schematic diagram of the structure of the sliding member provided in some embodiments of the present application. Figure 1 ;

[0023] Fig.11 This is a schematic diagram of the structure of the sliding member provided in some embodiments of the present application. Figure 2 ;

[0024] Fig.12 This is a schematic diagram of the structure of the sliding member provided in some embodiments of the present application. Figure 3 ;

[0025] Fig.13 is a cross-sectional view of a tension adjustment mechanism provided in some embodiments of the present application Figure 2 ;

[0026] Fig.14 This application is about Fig.13 Detail of point C.

[0027] In the figure: 100-fixed base, 110-traction channel, 111-fixed end, 120-base body, 130-cover body, 200-adjustable base, 210-mounting groove, 211-adjusting surface, 220-traction groove, 300-sleeve, 400-sliding member, 410-sliding protrusion, 420-sliding body, 421-first opening, 430-elastic layer, 440-mounting through hole, 500-abutment member, 10-handle, 11-first shell, 12-second shell, 20-traction wheel, 30-traction rope. DETAILED DESCRIPTION

[0028] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0029] It should be noted that, in each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories 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".

[0030] In some existing endoscope structures, a sleeve is generally provided on the outer surface of the traction rope, a connecting part is fixed outside the sleeve, an adjusting part is fixed inside the handle, and a plurality of slots are provided on the adjusting part. The tension of the traction rope is adjusted by installing the connecting part in different slots, and reference may be made to the Chinese patent document with publication number TWI846092B. However, the tension of the traction rope is often different from the preset tension.

[0031] The inventor has found that when adjusting the tension of the traction rope, the connecting part is usually taken out of the slot and then moved above the adjustment part. When the operator determines that the tension of the traction rope is appropriate, the connecting part will stop moving and then snap the connecting part into the corresponding slot below. However, the overall length of the traction rope is different when the connecting part is in the slot and when it is above the slot. When the connecting part is inserted from above the slot into the slot, the overall length of the traction rope becomes shorter, resulting in a decrease in the tension of the traction rope, which cannot be equal to the preset tension.

[0032] In view of this, the present application embodiment provides a traction rope tension adjustment mechanism, which is applied to an endoscope, referring to Figures 1 to 4 As shown, the adjustment mechanism includes a fixed base 100 , an adjustment base 200 , a sleeve 300 and a sliding member 400 .

[0033] The fixed base 100 and the adjustable base 200 are both fixedly mounted in the handle 10 of the endoscope, and the positions of the two bases need to be kept stable with the handle 10. The fixed base 100 is located at the distal end of the traction wheel 20 in the handle 10. The traction rope 30 extending from the traction wheel 20 must pass through the location of the fixed base 100. The fixed base 100 is also provided with a traction channel 110 for the traction rope 30 to pass through. The traction channel 110 is used to limit the extension path of the traction rope 30. The distal end of the traction channel 110 is defined as a fixed end 111, refer to Figure 2 As shown, the fixed end 111 is used to position and cooperate with the traction rope 30 in the circumferential direction of the traction rope 30. The fixed end 111 is the end of the traction channel 110, and the traction rope 30 is inserted through the fixed end 111. The fixed end 111 restricts the traction rope 30 inserted therein from moving toward any direction in the circumferential direction, and fixes the relative position of the traction rope 30 inserted through the fixed end 111 and the handle 10.

[0034] The adjusting base 200 is located at the far end of the fixed base 100, and the traction rope 30 extending from the fixed base 100 must pass through the position of the adjusting base 200. The adjusting base 200 has at least two installation grooves 210, and the wall surface of the installation groove 210 close to the fixed base 100 is an adjustment surface 211. Figure 4 The sleeve 300 is used to be sleeved on the outside of the traction rope 30, and the sliding member 400 is fixed to the sleeve 300. The sliding member 400 is used to be assembled into any installation groove 210. By assembling the sliding member 400 into different installation grooves 210, the tension of the traction rope 30 is adjusted.

[0035] The casing 300 is a tubular structure, refer to Figure 4 , Figures 6 to 14 As shown, the sleeve 300 is sleeved on the outside of the traction rope 30 to protect the traction rope 30 and prevent the traction rope 30 from rubbing against other components in the endoscope during the process of pulling the traction rope 30, thereby preventing the traction rope 30 from being damaged in the structure.

[0036] It should be explained that the sleeve 300 is a tubular structure that is difficult to be axially compressed and stretched, and can be a spring tube, a braided tube, or a full-round tube, etc., and the material can be metal or plastic. Since the sleeve 300 is difficult to be axially compressed or stretched, the sleeve 300 is sleeved on the traction rope 30, and the length of the traction rope 30 in the sleeve 300 is unchanged. Even if the sleeve 300 is bent and deformed under the action of external force, the axial length of the sleeve 300 is almost unchanged, and the length of the traction rope 30 in the sleeve 300 will not change.

[0037] The sliding member 400 is fixedly connected to the sleeve 300, and the movement of the sleeve 300 is controlled by controlling the movement of the sliding member 400. In the endoscope, both ends of the traction rope 30 are fixed, wherein the distal end of the traction rope 30 is fixed to the distal end of the insertion part of the endoscope, and the proximal end of the traction rope 30 is fixed to the traction wheel 20 in the handle 10. The sleeve 300 is sleeved outside the traction rope 30. When the operator controls the sliding member 400 to move, when the distal end of the sleeve 300 is pressed against the insertion part, the sleeve 300 as a whole can no longer continue to move toward the distal end of the insertion part. If the sleeve 300 continues to move toward it, the sleeve 300 will bend.

[0038] Since the positions of the proximal and distal ends of the traction rope 30 are fixed, and the length of the traction rope 30 in the sleeve 300 is also unchanged, even if the sleeve 300 is bent, the length of the traction rope 30 in the sleeve 300 will not change. However, during the bending of the sleeve 300, the proximal end of the sleeve 300 will move toward its distal end along with the sliding member 400, and the distance between the proximal end of the sleeve 300 and the proximal end of the traction rope 30 will gradually increase. However, since the length of the traction rope 30 in the sleeve 300 will not change, and the part of the traction rope 30 between the proximal end of the sleeve 300 and the proximal end of the traction rope 30 will be stretched and the length will increase, the overall length of the traction rope 30 will increase, thereby increasing the tension of the traction rope 30.

[0039] When it is necessary to lower the tension of the traction rope 30, the sliding member 400 is moved toward the proximal end of the traction rope 30 to reduce the bending degree of the sleeve 300, and the proximal end of the sleeve 300 is moved closer to the proximal end of the traction rope 30 to shorten the length of the traction rope 30 between the proximal ends of the sleeve 300 and the proximal ends of the traction rope 30, thereby lowering the tension of the traction rope 30.

[0040] It should be noted that when the sliding member 400 moves in the multiple installation grooves 210 of the adjustment base 200, the movement of the sliding member 400 will cause the sleeve 300 to bend or the bending degree of the sleeve 300 to be weakened. In this way, the tension of the traction rope 30 can be adjusted by changing the position of the sliding member 400.

[0041] The sliding member 400 is slidably matched with the adjustment surface 211, and the sliding member 400 can slide along the adjustment surface 211 from the opening of the mounting groove 210 toward the bottom of the mounting groove 210, and the sliding path of the sliding member 400 is an arc with the fixed end 111 as the center. The distance between the sliding member 400 and the fixed end 111 remains unchanged, that is, the length of the part of the traction rope 30 between the sliding member 400 and the fixed end 111 can remain unchanged, so that in the process of assembling the sliding member 400 from the top of the mounting groove 210 to the mounting groove 210, the overall length of the traction rope 30 can remain unchanged, and the tension of the traction rope 30 can be maintained stable.

[0042] Exemplarily, when the operator adjusts the position of the sliding member 400, the sliding member 400 is generally taken out from the mounting groove 210, and the sliding member 400 is moved back and forth above the adjustment base 200 to adjust the tension of the traction rope 30. After the traction rope 30 is adjusted to the preset tension, the sliding member 400 is installed in the mounting groove 210 corresponding to the position. The sliding member 400 on the adjustment base 200 is controlled to contact with the adjustment surface 211 of the mounting groove 210. In this way, when the sliding member 400 is adjusted to a suitable position and the traction rope 30 is adjusted to the preset tension, if the sliding member 400 needs to be installed in the corresponding mounting groove 210, the sliding member 400 only needs to be slid along the adjustment surface 211 of the mounting groove 210 to assemble the sliding member 400 in the corresponding mounting groove 210. Moreover, during the assembly process of the sliding member 400, the length of the traction rope 30 between the sliding member 400 and the fixed end 111 will not change, and the tension of the traction rope 30 can maintain the preset tension. Reference Figure 8 As shown, the dotted line represents the position of the unassembled sliding member 400, and the solid line represents the position of the assembled sliding member 400. During the assembly of the sliding member 400, although the overall position of the traction rope 30 and the sleeve 300 changes, the overall length of the traction rope 30 does not change. Therefore, the tension of the traction rope 30 can remain stable.

[0043] The traction rope 30 at the distal end of the sliding member 400 is all located in the sleeve 300, and the length of this part of the traction rope 30 will not change. The traction rope 30 at the proximal end of the sliding member 400 includes the part of the traction rope 30 located in the sleeve 300 at the proximal end of the sliding member 400, the part of the traction rope 30 between the proximal end of the sleeve 300 and the fixed end 111, and the part of the traction rope 30 between the fixed end 111 and the traction wheel 20. During the assembly process of the sliding member 400, the lengths of these parts of the traction rope 30 will not change, so the overall length of the traction rope 30 remains unchanged.

[0044] The tension adjustment mechanism of the traction rope 30 provided in the embodiment of the present application can determine the final tension of the traction rope 30 during the process of adjusting the tension of the traction rope 30 even if the sliding member 400 is not assembled into the installation groove 210, so that the operator can adjust the position of the sliding member 400 easily, and there will be no situation in which the tension of the traction rope 30 can only be determined after the sliding member 400 is assembled into place, thereby improving the convenience of the operator in adjusting the tension of the traction rope 30.

[0045] The sliding member 400 slides with the adjusting surface 211, and the sliding path of the sliding member 400 can be an arc with the fixed end 111 as the center. Correspondingly, the adjusting surface 211 should also be set as a curved surface, and the center of the curved surface is the fixed end 111. In this way, the sliding path of the sliding member 400 on the adjusting surface 211 can be an arc.

[0046] The sliding member 400 is fixedly connected to the sleeve 300. In some preferred embodiments, the sliding member 400 is connected to the proximal end of the sleeve 300. Figure 6 and Figure 7 As shown, the length of the sleeve 300 between the sliding member 400 and the fixed base 100 is reduced, thereby reducing the influence of the deformation of this part of the sleeve 300 on the tension adjustment of the traction rope 30.

[0047] The traction channel 110 can directly penetrate the fixed base 100, and the traction rope 30 extending from the traction wheel 20 passes through the traction channel 110 and then extends toward the adjustment base 200. During the tension adjustment process of the traction rope 30 and the use of the endoscope, the traction rope 30 will move relative to the traction channel 110. In some embodiments of the present application, a protective sleeve is provided in the traction channel 110, and the protective sleeve is used to reduce the friction between the traction rope 30 and the fixed base 100 to prevent the traction rope 30 from being damaged.

[0048] In some embodiments, the fixed base 100 includes a base body 120 and a cover body 130. Figure 5 As shown, the base body 120 is provided with a groove structure, and the cover body 130 can directly cover the base body 120, and the groove structure is closed to form a traction channel 110, which is more convenient for assembling the traction rope 30. In the case where a protective sleeve needs to be installed, the protective sleeve is directly fixed in the groove structure of the base body 120. The length of the groove structure can be greater than the length of the cover body 130. Although the groove structure can also limit the traction rope 30, it cannot limit the traction rope 30 in any direction of the circumference of the traction rope 30. Therefore, the groove structure needs to cooperate with the cover body 130 to form the traction channel 110. Figure 5 In the figure, the indicated positions of the fixing end 111 and the pulling channel 110 represent the positions of the fixing end 111 and the pulling channel 110 when the cover 130 is installed on the base body 120.

[0049] There are generally at least two mounting slots 210 provided on the adjustment base 200. When the sliding member 400 is assembled into different mounting slots 210, the traction rope 30 corresponds to different tensions. Figure 2 As shown, all the mounting grooves 210 provided on the adjustment base 200 are arranged along a first direction, and the first direction is the axial direction of the portion of the traction rope 30 corresponding to the sliding member 400. The sliding member 400 is fixed to the sleeve 300, and the sleeve 300 is sleeved outside the traction rope 30. The portion of the traction rope 30 corresponding to the sliding member 400 refers to the portion of the traction rope 30 in the sleeve 300 that is fixedly connected to the sliding member 400.

[0050] Different installation slots 210 have different distances from the fixed end 111, and the sliding path of the sliding member 400 corresponds to different diameters, so the sizes of the adjustment surfaces 211 of different installation slots 210 are also different. However, since the spacing between the multiple installation slots 210 is not large, the size of the adjustment surface 211 does not change significantly.

[0051] All the mounting grooves 210 are arranged along the first direction. When the position of the sliding member 400 is changed, the position of the sliding member 400 is also changed along the first direction. The moving direction of the sliding member 400 is the same as the axial direction of the traction rope 30. Therefore, changing the position of the sliding member 400 does not change the extension path of the traction rope 30. It is easier for the operator to judge the change trend of the tension of the traction rope 30 after the position of the sliding member 400 is changed. At the same time, it avoids the change in the extension path of the traction rope 30 causing the traction rope 30 to collide with other components in the handle 10.

[0052] After the sliding member 400 is assembled into the mounting groove 210, the sliding member 400 is pressed against the adjustment surface 211 under the force of the sleeve 300. In some embodiments, the adjustment base 200 has a traction groove 220 for arranging the sleeve 300. Figure 7 and Fig. 9 As shown, the traction groove 220 is connected to all the mounting grooves 210 provided on the adjustment base 200, and the arrangement direction of the sleeve 300 and the traction groove 220 is the same as the assembly direction of the sliding member 400 and the mounting groove 210. The traction groove 220 is provided to accommodate the sleeve 300, and the sleeve 300 can be inserted into the adjustment base 200 following the assembly process of the sliding member 400, so as to avoid the situation that the position of the sleeve 300 and the position of the adjustment base 200 are contradictory during the adjustment process of the sliding member 400, thereby affecting the assembly of the sliding member 400.

[0053] The traction groove 220 divides the adjustment surface 211 into two parts, and both parts of the adjustment surface 211 are slidably matched with the sliding member 400. The sliding member 400 is tightly pressed against the two parts of the adjustment surface 211, so that the force of the sleeve 300 on the sliding member 400 can be dispersed on the two parts of the adjustment surface 211, which helps to maintain the position of the sliding member 400 in the installation groove 210 stable.

[0054] In some embodiments provided in the present application, a portion of the surface of the sliding member 400 close to the fixed base 100 is protruded toward the fixed base 100 to form a sliding protrusion 410, referring to Fig.12As shown, the sliding protrusion 410 is used for sliding cooperation with the adjustment surface 211. The size of the sliding protrusion 410 is smaller than that of the sliding member 400. When sliding cooperation with the adjustment surface 211, the contact position of the sliding member 400 and the adjustment surface 211 is easier to determine. In addition, the sliding protrusion 410 is a protruding structure. During the sliding process of the sliding member 400 relative to the adjustment surface 211, the change of the contact position between the sliding member 400 and the adjustment surface 211 can be reduced or even avoided. If the contact position between the sliding member 400 and the adjustment surface 211 changes, the length of the traction rope 30 between the sliding member 400 and the fixed end 111 will change, which will affect the tension of the traction rope 30.

[0055] In some other embodiments provided in this application, reference is made to Fig.10 As shown, the sliding member 400 includes a sliding body 420 and an elastic layer 430. The elastic layer 430 is installed on a side of the sliding body 420 close to the fixed base 100. At least a portion of the elastic layer 430 is protruded relative to the surface of the sliding body 420 close to the fixed base 100. The elastic layer 430 is slidably matched with the adjustment surface 211, and the elastic layer 430 is squeezed between the adjustment surface 211 and the sliding body 420. Since different installation slots 210 have different sizes of the adjustment surface 211, the sliding member 400 provided in the present application is provided with an elastic layer 430, and the elastic layer 430 can be deformed appropriately to adapt to the size change of the adjustment surface 211, so that the sliding member 400 is always stably attached to the adjustment surface 211 and stably slidably matched with the adjustment surface 211.

[0056] In some preferred embodiments, reference Fig.10 As shown, the interior of the sliding body 420 is hollow, and a first opening 421 communicating with the interior of the sliding body 420 is provided on one side of the sliding body 420 close to the fixed base 100, and the elastic layer 430 is installed in the sliding body 420 through the first opening 421, and part of the elastic layer 430 is protruded from the first opening 421. In the process of assembling the sliding member 400 to the mounting groove 210, the maximum compression amount of the elastic layer 430 is the thickness of the elastic layer 430 protruding from the first opening 421. In this way, the size of the elastic layer 430 can be prevented from changing too much, which affects the tension of the traction rope 30; at the same time, when the elastic layer 430 is assembled to the interior of the sliding body 420, during the process of the elastic layer 430 sliding relative to the adjustment surface 211, the friction between the adjustment surface 211 and the elastic layer 430 is not easy to cause damage to the elastic layer 430, which can improve the service life of the sliding member 400.

[0057] Further preferably, the sliding member 400 is sleeved outside the sleeve 300, and the connection between the sliding member 400 and the sleeve 300 is more stable. Fig.11As shown, the sliding member 400 has a mounting through hole 440 for the sleeve 300 to pass through, and the mounting through hole 440 is located in the central area of ​​the elastic layer 430. The sliding member 400 is pressed against the adjustment surface 211 by the force of the sleeve 300, and the elastic layer 430 is squeezed and deformed to adapt to the shape of the adjustment surface 211. The mounting through hole 440 is located in the central area of ​​the elastic layer 430, so that the force on the elastic layer 430 can be dispersed from the center to the surroundings, and the force on the elastic layer 430 is balanced. During the assembly process of the sliding member 400, the elastic layer 430 is stably stressed, and the amount of compression changes little or almost unchanged, thereby reducing or even avoiding the influence of the size change of the elastic layer 430 on the tension of the traction rope 30.

[0058] refer to Fig. 9 As shown, a handle may be provided on the sliding member 400 to facilitate the operator to control the moving position of the sliding member 400 .

[0059] In some embodiments provided in this application, reference is made to Fig.13 and Fig.14 As shown, the adjustment mechanism further includes an abutment member 500. The adjustment base 200 and the fixed base 100 are both fixed to the first housing 11 of the handle 10, and the abutment member 500 is fixed to the second housing 12 of the handle 10. The abutment member 500 is used to abut the sliding member 400 along the assembly direction of the first housing 11 and the second housing 12 during the assembly process of the first housing 11 and the second housing 12, so as to fix the sliding member 400 in the corresponding installation groove 210.

[0060] The handle 10 is generally divided into a first shell 11 and a second shell 12, which is convenient for installing and fixing various instruments inside the handle 10. The abutment 500 is installed at a position of the second shell 12 corresponding to the adjustment base 200. During the process of assembling the first shell 11 and the second shell 12, the abutment 500 can abut against the sliding member 400 in the first shell 11, and the sliding member 400 is pressed tightly between the abutment 500 and the adjustment base 200, thereby fixing the position of the sliding member 400. The abutment 500 will abut against the sliding member 400 during the assembly process of the first shell 11 and the second shell 12 when the assembly process is almost finished, and will not affect the adjustment process of the sliding member 400 on the tension of the traction rope 30.

[0061] When the adjusting base 200 is provided with a traction groove 220, an abutment member 500 is provided to be inserted into the traction groove 220, and the abutment member 500 can abut against a sliding member 400 fixedly located in any installation groove 210. In some specific embodiments, the abutment member 500 can be a structure provided with a plurality of protrusions, each protrusion corresponding to a installation groove 210.

[0062] The embodiment of the present application provides an endoscope handle 10, comprising a tension adjustment mechanism for a traction rope 30 provided in any of the above embodiments. The proximal end of the traction rope 30 is fixed to the traction rope 30, and the distal end is sequentially wound around the traction wheel 20, penetrated into the traction channel 110 of the fixed base 100, passed out from the fixed end 111, and then passed into the sleeve 300. After passing out from the sleeve 300, the distal end of the traction rope 30 is fixed to the insertion portion of the endoscope.

[0063] An embodiment of the present application also provides an endoscope, comprising the endoscope handle 10 provided in any of the above embodiments.

[0064] The endoscope provided in the embodiments of the present application may be a nephroscope, or a suction endoscope, a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A traction rope tension adjustment mechanism, applied to an endoscope, characterized in that: The endoscope comprises a fixed base (100), an adjustable base (200), a sleeve (300) and a sliding member (400); the fixed base (100) and the adjustable base (200) are both fixedly mounted in a handle (10) of an endoscope; the fixed base (100) is located at the distal end of a traction wheel (20) and has a traction channel (110) for a traction rope (30) to pass through; the distal end of the traction channel (110) is a fixed end (111); the fixed end (111) is used to position and cooperate with the traction rope (30) in the circumferential direction of the traction rope (30); The adjustment base (200) is located at the far end of the fixed base (100), the adjustment base (200) has at least two installation grooves (210), the wall surface of the installation groove (210) close to the fixed base (100) is an adjustment surface (211), the adjustment surface (211) is a curved surface, and the center of a circle corresponding to the adjustment surface (211) is the fixed end (111); The sleeve (300) is used to be sleeved onto the outside of the traction rope (30), the sliding member (400) is fixed to the sleeve (300), and the sliding member (400) is used to be assembled into any one of the installation grooves (210). The sliding member (400) is slidably matched with the adjustment surface (211), and the sliding member (400) can slide along the adjustment surface (211) from the opening of the installation groove (210) toward the bottom of the installation groove (210), and the sliding path of the sliding member (400) is an arc with the fixed end (111) as the center.

2. A traction rope tension adjustment mechanism according to claim 1, characterized in that: All the mounting grooves (210) disposed on the adjustment base (200) are arranged along a first direction, and the first direction is the axial direction of the portion of the traction rope (30) corresponding to the sliding member (400).

3. A traction rope tension adjustment mechanism according to claim 2, characterized in that: The adjustment base (200) has a traction groove (220) for arranging the sleeve (300), the traction groove (220) is connected to all the installation grooves (210) arranged on the adjustment base (200), and the arrangement direction of the sleeve (300) and the traction groove (220) is the same as the assembly direction of the sliding member (400) and the installation groove (210); The traction groove (220) divides the adjustment surface (211) into two parts, and both parts of the adjustment surface (211) are in sliding cooperation with the sliding member (400).

4. A traction rope tension adjustment mechanism according to claim 1, characterized in that: A portion of the surface of the sliding member (400) close to the fixed base (100) is arranged to protrude toward the fixed base (100) to form a sliding protrusion (410), and the sliding protrusion (410) is used to slideably cooperate with the adjustment surface (211).

5. A traction rope tension adjustment mechanism according to claim 1, characterized in that: The sliding member (400) comprises a sliding body (420) and an elastic layer (430), wherein the elastic layer (430) is installed on a side of the sliding body (420) close to the fixed base (100), and at least a portion of the elastic layer (430) is arranged to be raised relative to a surface of the sliding body (420) close to the fixed base (100), and the elastic layer (430) is slidably matched with the adjustment surface (211), and the elastic layer (430) is squeezed between the adjustment surface (211) and the sliding body (420).

6. A traction rope tension adjustment mechanism according to claim 5, characterized in that: The sliding body (420) is hollow inside, and a first opening (421) communicating with the inside of the sliding body (420) is provided on a side of the sliding body (420) close to the fixed base (100), the elastic layer (430) is installed in the sliding body (420), and a portion of the elastic layer (430) protrudes from the first opening (421).

7. A traction rope tension adjustment mechanism according to claim 6, characterized in that: The sliding member (400) is sleeved outside the sleeve (300), and the sliding member (400) has a mounting through hole (440) for the sleeve (300) to pass through, and the mounting through hole (440) is located in the central area of ​​the elastic layer (430).

8. A traction rope tension adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism further comprises an abutment member (500); the adjustment base (200) and the fixed base (100) are both fixed to the first shell (11) of the handle (10); the abutment member (500) is fixed to the second shell (12) of the handle (10); the abutment member (500) is used to abut against the sliding member (400) along the assembly direction of the first shell (11) and the second shell (12) during the assembly process of the first shell (11) and the second shell (12), so as to fix the sliding member (400) in its corresponding mounting groove (210).

9. An endoscope handle, characterized in that: It comprises the traction rope (30) tension adjustment mechanism as claimed in any one of claims 1 to 8.

10. An endoscope, characterized in that: Comprising the endoscope handle (10) as claimed in claim 9.

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