Insertion part and endoscope

Abstract

The invention discloses an insertion part and an endoscope, and relates to the field of medical instruments. The insertion part comprises an insertion tube, a front end assembly and a first driving mechanism, the insertion tube is provided with a first channel, the first channel penetrates from the near end of the insertion tube to the far end of the insertion tube, and the front end assembly is provided with a device mounting part, a second channel penetrating through the front end assembly and an opening formed in the side wall of the far end of the second channel; the device installation part partially shields the first channel, the second channel is communicated with the first channel, the opening is located in the side, away from the device installation part, of the second channel, and the bottom of the opening extends to the near end of the device installation part. And the driving mechanism can drive the device mounting part to deflect so as to increase the area of the opening in the axial direction of the insertion part. According to the arrangement, the area of the opening can be increased, the influence of the device mounting part and the camera module mounted on the device mounting part on the cross sectional area of the first channel is reduced, the flow of the insertion part is increased, and the use effect and the working efficiency of the insertion part are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to an insertion part and an endoscope. Background Art

[0002] Endoscopes are used to visually observe and diagnose the state of the internal tissues and organs of the human body. During the treatment stage of a disease, medical staff usually need to use the suction channel of the endoscope to suction sputum, blood clots and other substances to achieve diagnosis and treatment operations. In order to facilitate the smooth entry of the endoscope into the human body, the size of the endoscope should not be set too large.

[0003] In addition, a camera module is integrated at the distal end of the insertion portion of the endoscope, which provides visual images to facilitate medical staff to diagnose and treat. However, it also significantly reduces the cross-sectional area of ​​the endoscope's suction channel. This greatly limits the flow rate of the endoscope's suction channel and the possibility of medical devices with larger diameters being smoothly inserted through the endoscope's instrument tube. Summary of the invention

[0004] In view of the above shortcomings of the related technologies, the present application provides an insertion portion and an endoscope to solve the above technical problems.

[0005] The present application provides an insertion portion, which is used for an endoscope. The insertion portion includes an insertion tube, a front end assembly and a first driving mechanism. The insertion tube has a first channel, which runs from the proximal end of the insertion tube to the distal end of the insertion tube. The front end assembly has a device mounting portion, a second channel running through the front end assembly and an opening arranged on the distal side wall of the second channel. The device mounting portion partially blocks the first channel, and the second channel is connected to the first channel. The opening is located on a side of the second channel away from the device mounting portion, and the bottom of the opening extends to the proximal end of the device mounting portion. The front end assembly is rotatably matched with the distal end of the insertion tube, the first driving mechanism is connected to the front end assembly, and the first driving mechanism is used to drive the front end assembly to deflect toward a first side of the insertion tube, and the first side of the insertion tube is a side of the insertion tube away from the opening.

[0006] In one embodiment of the present application, the front end assembly and the insertion tube are rotationally matched and have a rotation axis, and the bottom of the opening extends to one side of the rotation axis adjacent to the proximal end of the insertion portion.

[0007] In one embodiment of the present application, the insertion portion further includes a second driving structure, which is connected to the front end component and is used to drive the front end component to deflect toward a side of the insertion tube close to the opening.

[0008] In one embodiment of the present application, the front end component can switch between a first position and a second position. When the front end component is in the first position, the front end component is coaxial with the insertion tube, and the front end component is matched with the insertion portion for rotation limiting. When the front end component is in the second position, the front end component is deflected relative to the insertion tube to the side of the insertion tube away from the opening.

[0009] In one embodiment of the present application, the insertion tube also includes an active bending section, which is used to deflect toward the first side and / or the second side of the insertion part, the first side is a first radial side of the insertion tube, and the second side is a second radial side of the insertion tube, and the first radial is perpendicular to the second radial.

[0010] In one embodiment of the present application, the first driving mechanism is connected to the active bending section, and the first driving mechanism drives the active bending section to deflect toward the first side or the second side.

[0011] In one embodiment of the present application, the active bending section includes a first rotating joint and a second rotating joint, the distal end of the first rotating joint is rotatably connected to the front end assembly, and the second rotating joint is rotatably connected to the proximal end of the first rotating joint; When the insertion portion is straightened, the resistance of the first rotating joint to rotate toward the third side of the insertion tube relative to the second rotating joint is a first resistance, the third side of the insertion tube and the first side of the insertion tube are opposite sides of the insertion tube, and the resistance of the front end assembly to rotate toward the third side of the insertion tube relative to the first rotating joint is a second resistance, and the second resistance is greater than the first resistance.

[0012] In one embodiment of the present application, the front end assembly includes a front end seat, the front end seat and the active bending section are an integral structure, a first arc groove is arranged between the first rotating joint and the front end assembly, the first arc groove is arranged on a first side of the active bending section, and the first arc groove extends along the circumference of the insertion portion; A second arc-shaped groove and a first arc-shaped slit are arranged between the first rotating joint and the second rotating joint, the second arc-shaped groove is arranged on the third side of the active bending section, the first arc-shaped slit is arranged on the first side of the active bending section, and the first arc-shaped slit and the second arc-shaped groove are distributed along the circumference of the insertion portion; The connecting part connecting the front end assembly and the front end seat is the first connecting part, and the connecting part connecting the first rotating joint and the second rotating joint is the second connecting part. The stiffness of the first connecting part is greater than the stiffness of the second connecting part. When the active bending section is in a straight state, the first rotating joint and the second rotating joint form the first arc-shaped cut part and stop against each other.

[0013] To achieve the above-mentioned purpose and other related purposes, the present application provides an endoscope, including an insertion portion as described above and a negative pressure suction valve, wherein the negative pressure suction valve is connected to the first channel.

[0014] In one embodiment of the present application, the negative pressure suction valve is transmission-connected to the first driving mechanism, and when the negative pressure suction valve is opened, the driving mechanism drives the front end assembly to deflect toward the first side of the insertion portion.

[0015] In one embodiment of the present application, the endoscope also includes a traction wheel, the first driving mechanism is a traction rope suitable for driving the deflection of the insertion part, the traction rope is connected to the traction wheel, and the first driving mechanism also includes a locking part. When the negative pressure suction valve is opened, the locking part can lock the traction wheel, and when the negative pressure suction valve is closed, the locking part can release the traction wheel.

[0016] The technical solution adopted in the present invention can achieve the following beneficial effects: the device mounting portion can be used to install devices, such as cameras, lighting lamps, etc. The insertion portion can be inserted into the patient's body until the affected area. In the insertion portion, the first channel and the second channel can perform suction work or insert medical devices. During this period, the driving mechanism can drive the device mounting portion to deflect to increase the area of ​​the opening in the axial direction of the insertion portion. This setting can increase the area at the opening, reduce the influence of the device mounting portion and the camera module installed on the device mounting portion on the cross-sectional area of ​​the first channel, increase the flow rate of the insertion portion, and improve the use effect and work efficiency of the insertion portion. In addition, the first channel can insert medical devices of larger volume, improve the adaptability of the insertion portion, and expand the use scenarios of the insertion portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 is a schematic structural diagram of an endoscope shown in an exemplary embodiment of the present application; Figure 2 is a schematic structural diagram of an insertion portion shown in an exemplary embodiment of the present application; Figure 3 is a cross-sectional view of an insertion portion shown in an exemplary embodiment of the present application; Figure 4 is a cross-sectional view of another insertion portion shown in an exemplary embodiment of the present application; Figure 5 is a cross-sectional view of another insertion portion shown in an exemplary embodiment of the present application; Figure 6 is a cross-sectional view of yet another insertion portion shown in an exemplary embodiment of the present application; Figure 7is a cross-sectional view of an insertion portion after rotation, shown in an exemplary embodiment of the present application; Figure 8 is a schematic structural diagram of an active bending section and a front end assembly shown in an exemplary embodiment of the present application; Fig. 9 is a schematic structural diagram of an insertion portion from another perspective shown in an exemplary embodiment of the present application; Fig.10 is a schematic structural diagram of a first rotating joint, a second rotating joint and a front end assembly shown in an exemplary embodiment of the present application; Fig.11 It is a structural schematic diagram of another first rotating joint, a second rotating joint and a front end assembly shown in an exemplary embodiment of the present application; Fig.12 is a structural schematic diagram of another first rotating joint, a second rotating joint and a front end assembly shown in an exemplary embodiment of the present application; Fig.13 is a schematic structural diagram of another endoscope shown in an exemplary embodiment of the present application; Fig.14 yes Fig.13 Enlarged view of point a in .

[0019] In the figure: 1, endoscope; 100, insertion part; 110, insertion tube; 111, first channel; 120, front end assembly; 121, device mounting part; 122, second channel; 123, opening; 124, front end seat; 125, camera module; 130, first driving mechanism; 131, locking part; 140, second driving mechanism; 150, active bending section; 151, first rotating joint; 152, second rotating joint; 153, first arcuate groove; 154, second arcuate groove; 155, first arcuate slit; 160, first side; 170, second side; 180, third side; 200, negative pressure suction valve; 210, transmission member; 300, traction rope; 400, traction wheel; 500, operating part. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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".

[0023] The present application provides an insertion portion 100, see Figure 1 The insertion part 100 is used for the endoscope 1, and the insertion part 100 can be inserted into the human body to perform medical operations. Exemplarily, the endoscope 1 may also include an operating part 500, and the proximal end of the insertion part 100 is connected to the operating part 500.

[0024] See also Figure 2 as well as Figure 3 The insertion portion 100 includes an insertion tube 110 , a front end assembly 120 , and a first driving mechanism 130 . The front end assembly 120 is connected to the distal end of the insertion portion 100 , and the first driving mechanism 130 is connected to the front end assembly 120 .

[0025] See also Figure 3 The insertion tube 110 has a first channel 111, and the first channel 111 runs from the proximal end of the insertion tube 110 to the distal end of the insertion tube 110. For example, the insertion tube 110 is a hollow structure, and the first channel 111 can be used to inject a medium, insert a treatment instrument, etc. The treatment instrument can be a biopsy forceps, a laser device, etc., and this embodiment does not specifically limit it.

[0026] The endoscope 1 may be equipped with a camera module 125 to observe the internal conditions of the human body. However, the camera module 125 may block or occupy the first channel 111 of the insertion portion 100, resulting in a limited cross-sectional area of ​​the first channel 111, thereby severely limiting the passability and actual flow of the first channel 111. In this embodiment, please continue to refer to Figure 3The front end assembly 120 includes a device mounting portion 121, a second channel 122, and an opening 123. The opening 123 is disposed on the distal side wall of the second channel 122, and the opening 123 is connected to the second channel 122. The second channel 122 runs through the front end assembly 120, and the second channel 122 is connected to the first channel 111, so that the medium can be injected into the opening 123, or the treatment instrument can be inserted into the opening 123.

[0027] Please continue reading Figure 3 The device mounting portion 121 can be installed with a camera module 125, a lighting module, etc., which is not limited in this embodiment. Figure 3 The schematic diagram of the structure of the camera module 125 and the device mounting part 121 is shown, the device mounting part 121 partially blocks the first channel 111, and the opening 123 is located on the side of the second channel 122 away from the device mounting part 121. The device mounting part 121 and the opening 123 are relatively independent, and the medium or the treatment instrument can extend from the opening 123 without interfering with the normal operation of the device mounting part 121 and other components mounted on the device mounting part 121.

[0028] like Figure 3 As shown, the bottom of the opening 123 extends to the proximal end of the device mounting portion 121. The bottom of the opening 123 may be the end of the opening 123 away from the device mounting portion 121, and the top of the opening 123 may be the end of the opening 123 away from the device mounting portion 121. For example, the end surface forming the opening 123 is configured as an inclined surface so that the top of the opening 123 extends to the distal end of the front end assembly 120, and in the axial direction of the insertion portion 100, the bottom of the opening 123 can extend to the proximal end of the device mounting portion 121. The front end assembly 120 is rotationally matched with the distal end of the insertion tube 110, and the first drive mechanism 130 is connected to the front end assembly 120, and the first drive mechanism 130 is used to drive the front end assembly 120 to deflect toward the first side 160 of the insertion tube 110. The first side 160 of the insertion tube 110 is the side of the insertion tube 110 away from the opening 123. For example, please refer to Figure 3 as well as Figure 4 , Figure 3 is a schematic diagram of the structure before the device mounting portion 121 is deflected, Figure 4 1 is a schematic diagram of the structure after the device mounting portion 121 is deflected. The first driving mechanism 130 can drive the front end assembly 120 to deflect toward the first side 160 of the insertion tube 110, and the deflection direction is as follows: Figure 4 In this process, the orientation of the opening 123 changes, and the projection area of ​​the opening 123 on the axis of the insertion portion 100 increases. For example, Figure 3 d1 is less than Figure 4 d2 in the figure is in the axial direction of the insertion portion 100 (eg Figure 4The projection area of ​​the opening 123 increases significantly after the deflection. This arrangement can significantly increase the projection area of ​​the opening 123 which is limited by the spatial layout as the front end assembly 120 deflects, thereby improving the passability and flow rate of the opening 123.

[0029] It can be understood that the bottom of the opening 123 extends to the proximal end of the device mounting portion 121. In the axial direction of the insertion portion 100, the line between the device mounting portion 121 and the bottom of the opening 123 is inclined along the direction from the device mounting portion 121 to the opening 123. In the process of the orientation of the opening 123 changing, the inclination angle between the line between the device mounting portion 121 and the bottom of the opening 123 and the radial direction of the insertion portion 100 gradually decreases, and in the axial direction of the insertion portion 100, the area of ​​the device mounting portion 121 blocking the first channel 111 gradually decreases, so as to improve the passability and flow rate of the opening 123.

[0030] Preferably, see Figure 5 , the front end assembly 120 and the insertion tube 110 are rotationally matched, and there is a rotation axis between the front end assembly 120 and the insertion tube 110, and the bottom of the opening 123 extends to the side of the rotation axis adjacent to the proximal end of the insertion part 100. Exemplarily, the front end assembly 120 and the insertion tube 110 are rotationally matched through a pivot, and the rotation axis between the front end assembly 120 and the insertion tube 110 can be the axis of the pivot. This setting can make the bottom of the opening 123 extend to the side of the rotation axis adjacent to the proximal end of the insertion part 100, the bottom of the opening 123 does not rotate with the pivot relative to the insertion tube 110, and the top of the opening 123 rotates with the pivot toward the direction close to the device mounting part 121. The two ends of the opening 123 move in opposite directions to deform the opening 123, and the size of the deformed opening 123 increases, further improving the passability and flow rate of the opening 123.

[0031] In this example, see Figure 6 The insertion portion 100 may also include a second drive mechanism 140, which is connected to the front end assembly 120 and is used to drive the front end assembly 120 to deflect toward the side of the insertion tube 110 close to the opening 123. This arrangement can flexibly control the rotation of the front end assembly 120 so that the device mounting portion 121 and its camera module 125 face different directions for easy observation by medical staff. In addition, the direction of the opening 123 changes accordingly so that the opening 123 can be oriented to suck or inject the medium in different directions.

[0032] In this embodiment, the front end assembly 120 can be switched between the first position and the second position. Figure 3As shown, when the front end assembly 120 is in the first position, the front end assembly 120 is coaxial with the insertion tube 110, and the front end assembly 120 and the insertion portion 100 are rotationally limited. Figure 4 As shown, when the front end assembly 120 is in the second position, the front end assembly 120 is deflected relative to the insertion tube 110 to the side of the insertion tube 110 away from the opening 123, so that the projection area of ​​the opening 123 on the insertion tube 110 is increased, thereby improving the permeability and flow rate of the opening 123.

[0033] In one embodiment, see Figure 6 The first driving mechanism 130 and the second driving mechanism 140 can be used to drive the front end assembly 120 so that the front end assembly 120 switches between the first position and the second position. Further, the second driving mechanism 140 and the first driving mechanism 130 are respectively arranged on opposite sides of the insertion tube 110, and the forces applied to the front end assembly 120 by the first driving mechanism 130 and the second driving mechanism 140 are applied in opposite directions. Figure 4 As shown, the first driving mechanism 130 drives the front end assembly 120 to deflect toward a side away from the opening 123. Figure 7 As shown, the second driving mechanism 140 drives the front end assembly 120 to deflect on one side close to the opening 123, and the deflection direction is as shown in FIG. Figure 7 This setting can flexibly control the deflection direction of the front-end component 120, improve the passability and flow rate of the opening 123, or restore it to its original state to adapt to different implementation scenarios.

[0034] In addition, Figure 7 As shown, the end surface forming the opening 123 may be an inclined surface, and the second driving mechanism 140 can rotate the device mounting portion 121 toward the direction close to the axis of the insertion portion 100, so that the surface of the device mounting portion 121 away from the opening 123 is inclined relative to the axis of the insertion portion 100. This setting can make the front end component 120 roughly a conical structure, and the top of the front end component 120 is roughly located on the axis of the insertion portion 100. The front end component 120 with a conical structure has a guiding effect, so that the insertion portion 100 is inserted along its own axis, thereby improving the insertion effect of the insertion portion 100.

[0035] In this example, see Figure 8 The insertion tube 110 may further include an active bending section 150. The active bending section 150 may be relatively rotated under the operation of medical personnel. The active bending section 150 is used to deflect toward the first side 160 and / or the second side 170 of the insertion portion 100. This arrangement enables the active bending section 150 to rotate along two axes. In other words, the active bending section 150 can be oriented toward the first side 160 of the insertion portion 100 or away from the first side 160 of the insertion portion 100 (e.g., Figure 8The active bending section 150 can be oriented toward the second side 170 close to the insertion portion 100 or away from the second side 170 of the insertion portion 100 (as shown in FIG. Figure 8 The active bending section 150 can be rotated in four directions (as shown by L5 in the figure). The active bending section 150 that can rotate in four directions allows doctors to easily bypass obstacles in the body and accurately locate the area that needs to be inspected or treated when performing endoscopic inspection or surgery, so that medical staff can observe and analyze the patient's internal conditions in more detail.

[0036] Among them, Fig. 9 As shown, the first side 160 is a side of the first radial direction of the insertion tube 110, and the second side 170 is a side of the second radial direction of the insertion tube 110, and the first radial direction is perpendicular to the second radial direction. It can be understood that the first radial direction can be the diameter of the insertion tube 110 extending in the vertical direction, and the second radial direction can be the diameter of the insertion tube 110 extending in the horizontal direction, and the two are perpendicular to each other. For example, the first side 160 can be the lower side of the insertion part 100, and the second side 170 can be the left side of the insertion part 100.

[0037] Please review Figure 8 , the first driving mechanism 130 is connected to the active bending section 150, and the first driving mechanism 130 drives the active bending section 150 to deflect toward the first side 160 or the second side 170. By receiving the operation from the doctor, the first driving mechanism 130 can respond quickly and accurately, driving the active bending section 150 to deflect in the desired direction in a smooth and controllable manner. This setting can greatly improve the flexibility and accuracy of endoscope 1 inspection and surgery. When the first channel 111 and the second channel 122 are working, the first driving mechanism 130 drives the active bending section 150 to deflect toward the first side 160 to improve the flow and passability of the opening 123. When the insertion part 100 needs to penetrate into a narrow and curved cavity, the medical staff manipulates the first driving mechanism 130 to bend toward the first side 160 or the second side 170 to drive the active bending section 150 to deflect at the best angle and position, further improving the safety and efficiency of endoscope 1 inspection and surgery.

[0038] In this example, see Fig.10The active bending section 150 may include a first rotating joint 151 and a second rotating joint 152, the distal end of the first rotating joint 151 is rotatably connected to the front end assembly 120, and the second rotating joint 152 is rotatably connected to the proximal end of the first rotating joint 151. Exemplarily, the first rotating joint 151 and the front end assembly 120 are rotatably connected via a first pivot, so that the camera module 125 and the opening 123 of the front end assembly 120 can face different directions. The second rotating joint 152 and the first rotating joint 151 are rotatably connected via a second pivot, and the second rotating joint 152 can further increase the rotation range of the front end assembly 120 to increase the working range of the camera module 125 and the opening 123. This setting not only improves the observation ability of the endoscope 1, enabling it to capture more details, but also provides doctors with a wider treatment operation space.

[0039] Please refer to Fig. 9 , the first side 160 and the third side 180 may be two sides of the insertion portion 100 that are away from each other. For example, the first side 160 may be the lower side of the insertion portion 100, the second side 170 may be the left side of the insertion portion 100, the third side 180 may be the upper side of the insertion portion 100, and the second side 170 and the third side 180 may be perpendicular to each other.

[0040] When the insertion portion 100 needs to be controlled to rotate toward the third side 180, the front end assembly 120 is bent toward the third side 180 relative to the first rotation joint 151, and the device mounting portion 121 may squeeze the opening 123, causing the opening 123 to be closed or partially closed, affecting the normal suction of the opening 123. In this embodiment, please refer to Fig.11 , when the insertion portion 100 is straightened, the resistance of the first rotation joint 151 to rotate toward the third side 180 of the insertion tube 110 relative to the second rotation joint 152 is the first resistance. The third side 180 of the insertion tube 110 and the first side 160 of the insertion tube 110 are opposite sides of the insertion tube 110, and the resistance of the front end assembly 120 to rotate toward the third side 180 of the insertion tube 110 relative to the first rotation joint 151 is the second resistance, which is greater than the first resistance. For example, Fig.11 As shown, relative to the first rotating joint 151, the front end assembly 120 can only rotate toward the first side 160, or the front end assembly 120 can only rotate slightly toward the third side 180. The bottom of the opening 123 can extend between the front end assembly 120 and the first rotating joint 151. When the front end assembly 120 turns relative to the first rotating joint 151 toward the third side 180, this setting can preferentially rotate the first rotating joint 151 relative to the second rotating joint 152, so as to realize the overall rotation of the first rotating joint 151 and the front end assembly 120, avoid the bottom and top of the opening 123 from moving toward each other, and maintain the passability and flow rate of the opening 123.

[0041] In a more specific embodiment, see Fig.12 The front end assembly 120 may include a front end seat 124, and the front end seat 124 and the active bending section 150 are an integral structure. In other words, the front end assembly 120 and the active bending section 150 may be integrally formed by injection molding or the like, and the active bending section 150 may be integrally cut, which has a faster molding rate and lower manufacturing cost.

[0042] Specifically, a first arcuate groove 153 is disposed between the first rotating joint 151 and the front end assembly 120. The first arcuate groove 153 is disposed on the first side 160 of the active bending section 150 and extends along the circumference of the insertion portion 100. A second arcuate groove 154 and a first arcuate slit 155 are disposed between the first rotating joint 151 and the second rotating joint 152. The second arcuate groove 154 is disposed on the third side 180 of the active bending section 150, and the first arcuate slit 155 is disposed on the first side 160 of the active bending section 150. The second arcuate groove 154 and the first arcuate slit 155 can be distributed along the circumference of the insertion portion 100. The provision of the first arcuate slit 155 can make the area of ​​the active bending section 150 between the first rotating joint 151 and the second rotating joint 152 smaller, and the cross-sectional area of ​​the active bending section 150 between the first rotating joint 151 and the front end assembly 120 larger. Under the same or similar materials and shapes, the cross-sectional area between the first rotating joint 151 and the front end assembly 120 is larger, and it is more difficult for it to deform, so the second resistance is greater than the first resistance, so that the first rotating joint 151 is preferentially rotated relative to the second rotating joint 152 to maintain the permeability and flow rate of the opening 123.

[0043] In other words, the connection part connecting the front end assembly 120 and the front end seat 124 is the first connection part, and the connection part connecting the first rotating joint 151 and the second rotating joint 152 is the second connection part. Among them, the rigidity of the first connection part is greater than the rigidity of the second connection part. Exemplarily, the cross-sectional area of ​​the first connection part is larger than that of the second connection part. Compared with the second connection part, the first connection part has higher rigidity and weaker deformation ability. The first connection part has weaker deformation ability than the second connection part, and the force required for its deformation is greater, so the second resistance is greater than the first resistance. This setting can realize the preferential rotation of the first rotating joint 151 relative to the second rotating joint 152 to maintain the passability and flow rate of the opening 123.

[0044] Preferably, when the active bending section 150 is in the straight state, the first rotating joint 151 and the second rotating joint 152 form the first arcuate slit 155 and stop each other. With respect to the second rotating joint 152, the first arcuate slit 155 can limit the first rotating joint 151 from rotating in the direction close to the first side 160, but does not limit the first rotating joint 151 from rotating in the direction away from the first side 160. When the insertion portion 100 needs to rotate toward the first side 160, this setting can make the front end assembly 120 rotate, prevent the first rotating joint 151 from rotating relative to the second rotating joint 152, and avoid the first side 160 from interfering with the change in the area of ​​the opening 123, which effectively improves the use effect.

[0045] For example, see Fig.12 , the groove width of the first arcuate slit 155 is smaller than that of the first arcuate groove 153. When the insertion part 100 needs to be controlled to rotate toward the third side 180, the groove walls forming the first arcuate slit 155 are separated, so that the groove walls forming the second arcuate groove 154 are gathered together, so that the first rotation joint 151 is bent and set relative to the second rotation joint 152 toward the third side 180. However, when the insertion part 100 needs to be controlled to rotate toward the first side 160, the groove walls forming the first arcuate slit 155 quickly abut against each other, and it is difficult for the first rotation joint 151 to be rotated toward the first side 160 relative to the second rotation joint 152. During this period, the groove walls forming the first arcuate groove 153 are gathered together, so that the front end assembly 120 is deflected and set toward the first side 160 of the first rotation joint 151. This setting can drive the front end assembly 120 to rotate toward the first side 160 to increase the area of ​​the opening 123, and avoid the first arcuate slit 155 interfering with the rotation of the front end assembly 120.

[0046] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, see Figure 1 as well as Fig.12 , including the aforementioned insertion portion 100 and the negative pressure suction valve 200, the negative pressure suction valve 200 being communicated with the first channel 111. The endoscope 1 may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc., and the embodiment of the present application does not specifically limit the type of the endoscope 1.

[0047] In this embodiment, the negative pressure suction valve 200 is connected to the first driving mechanism 130 in a transmission manner. When the negative pressure suction valve 200 is opened, the first driving mechanism 130 drives the front end assembly 120 to deflect toward the first side 160 of the insertion portion 100. The front end assembly 120 is deflected toward the first side 160 of the insertion portion 100, so that the direction of the opening 123 is deflected, and the cross-sectional area of ​​the opening 123 is rapidly increased. When the negative pressure suction valve 200 injects a flushing liquid to clean the observation area or assist in diagnosis, the enlarged opening 123 can also accelerate the injection speed of the medium and improve the operating efficiency. In other words, the negative pressure suction valve 200 is started and set, and the state of the front end assembly 120 and the opening 123 can be automatically and synchronously adjusted to ensure that the process of suctioning or injecting the medium is faster and more efficient, simplify the operating steps, and improve the injection efficiency or suction efficiency of the insertion portion 100.

[0048] In a more specific embodiment, the negative pressure suction valve 200 is provided with a transmission member 210, and the transmission member 210 is connected to the first drive mechanism 130. When the negative pressure suction valve 200 is opened, the transmission member 210 drives the first drive mechanism 130, and the first drive mechanism 130 drives the front end assembly 120 to synchronously increase the flow rate of the opening 123. Exemplarily, the negative pressure suction valve 200 has a valve body, and the valve body is slidably arranged relative to the operating part 500 of the endoscope 1. Medical staff need to press the valve body to open the negative pressure suction valve 200. The transmission member 210 is connected to the valve body. While the valve body is pressed, the first drive mechanism 130 is also driven by the transmission member 210 to achieve synchronous movement of the negative pressure suction valve 200 and the front end assembly 120.

[0049] In another embodiment, see Fig.13 as well as Fig.14 The endoscope 1 may further include a traction wheel 400 and a traction rope 300, the traction rope 300 and the traction wheel 400 are connected to each other, and the traction rope 300 is suitable for driving the insertion part 100 to deflect. The medical staff turns the traction wheel 400, and the traction wheel 400 drives the traction rope 300, and the traction rope 300 is suitable for driving the insertion part 100 to deflect. The distal end of the insertion part 100 can be rotated so that the insertion part 100 can enter a curved cavity.

[0050] The first driving mechanism 130 is a traction rope 300, and the traction rope 300 is connected to the traction wheel 400. The first driving mechanism 130 can drive the insertion portion 100 to deflect toward the first side 160 or toward the third side 180. In addition, the medical staff can directly turn the traction wheel 400 to operate the first driving mechanism 130 to deflect the front end assembly 120. This setting can integrate the function of the first driving mechanism 130 on the traction rope 300, reduce the components of the endoscope 1, and improve the assembly efficiency of the endoscope 1.

[0051] See also Fig.14 , the first driving mechanism 130 may further include a locking portion 131, which may be a spring sheet, a rack, etc. For example, the traction wheel 400 may be a gear, and the locking portion 131 has teeth that mesh with the traction wheel 400, so the locking portion 131 can mesh with the traction wheel 400. When the negative pressure suction valve 200 is opened, the locking portion 131 can lock the traction wheel 400, and when the negative pressure suction valve 200 is closed, the locking portion 131 can release the traction wheel 400. For example, the negative pressure suction valve 200 has a valve body, and the valve body is slidably arranged relative to the operating portion 500 of the endoscope 1. Medical staff need to press the valve body to open the negative pressure suction valve 200. The locking portion 131 simultaneously locks the locking traction wheel 400 to prevent the traction wheel 400 from rotating and affecting the deflection of the insertion portion 100. The transmission member 210 is connected to the valve body, and the traction rope 300 is located in the active path of the transmission member 210. When the valve body is pressed, the traction rope 300 will also be driven by the transmission member 210 to achieve synchronous movement of the negative pressure suction valve 200 and the front end assembly 120.

[0052] The technical solution adopted by the present invention can achieve the following beneficial effects: the device mounting portion 121 can be used to install devices, such as cameras, lighting lamps, etc. The insertion portion 100 can be inserted into the patient's body until the affected area. In the insertion portion 100, the first channel 111 and the second channel 122 can perform suction work or insert medical devices. During this period, the driving mechanism can drive the device mounting portion 121 to deflect to increase the area of ​​the opening 123 in the axial direction of the insertion portion 100. This setting can increase the area at the opening 123, reduce the influence of the device mounting portion 121 and the camera module 125 installed on the device mounting portion 121 on the cross-sectional area of ​​the first channel 111, increase the flow rate of the insertion portion 100, and improve the use effect and work efficiency of the insertion portion 100. In addition, the first channel 111 can insert larger medical devices, improve the adaptability of the insertion portion 100, and expand the use scenario of the insertion portion 100.

[0053] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0054] 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.

[0055] 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. An insertion portion, characterized in that: The insertion portion is used for an endoscope, and the insertion portion includes: An insertion tube having a first passage extending from a proximal end of the insertion tube to a distal end of the insertion tube; A front end component, the front end component having a device mounting portion, a second channel running through the front end component, and an opening arranged on a distal side wall of the second channel, the device mounting portion partially blocks the first channel, the second channel is communicated with the first channel, the opening is located on a side of the second channel away from the device mounting portion, and the bottom of the opening extends to the proximal end of the device mounting portion, the front end component is rotatably matched with the distal end of the insertion tube; and, A first driving mechanism is connected to the front end assembly and is used to drive the front end assembly to deflect toward a first side of the insertion tube, wherein the first side of the insertion tube is a side of the insertion tube away from the opening.

2. The insertion portion according to claim 1, characterized in that: The front end assembly and the insertion tube are rotationally matched and have a rotation axis, and the bottom of the opening extends to a side of the rotation axis adjacent to the proximal end of the insertion portion; And / or, the insertion portion further includes a second driving structure, the second driving structure is connected to the front end assembly, and the second driving structure is used to drive the front end assembly to deflect toward a side of the insertion tube close to the opening.

3. The insertion portion according to claim 1, characterized in that: The front end component can switch between a first position and a second position. When the front end component is in the first position, the front end component is coaxial with the insertion tube, and the front end component is rotationally limited with the insertion portion. When the front end component is in the second position, the front end component is deflected relative to the insertion tube to the side of the insertion tube away from the opening.

4. The insertion portion according to claim 1, characterized in that: The insertion tube also includes an active bending section, which is used to deflect toward the first side and / or second side of the insertion portion, the first side being one side of a first radial direction of the insertion tube, the second side being one side of a second radial direction of the insertion tube, and the first radial direction is perpendicular to the second radial direction.

5. The insertion portion according to claim 4, characterized in that: The first driving mechanism is connected to the active bending section, and the first driving mechanism drives the active bending section to deflect toward the first side or the second side.

6. The insertion portion according to claim 5, characterized in that The active bending section comprises a first rotating joint and a second rotating joint, the distal end of the first rotating joint is rotatably connected to the front end assembly, and the second rotating joint is rotatably connected to the proximal end of the first rotating joint; When the insertion portion is straightened, the resistance of the first rotating joint to rotate toward the third side of the insertion tube relative to the second rotating joint is a first resistance, the third side of the insertion tube and the first side of the insertion tube are opposite sides of the insertion tube, and the resistance of the front end component to rotate toward the third side of the insertion tube relative to the first rotating joint is a second resistance, and the second resistance is greater than the first resistance.

7. The insertion portion according to claim 6, characterized in that The front end assembly includes a front end seat, the front end seat and the active bending section are an integral structure, a first arc groove is arranged between the first rotating joint and the front end assembly, the first arc groove is arranged on the first side of the active bending section, and the first arc groove extends along the circumference of the insertion portion; A second arcuate groove and a first arcuate slit are arranged between the first rotating joint and the second rotating joint, the second arcuate groove is arranged on the third side of the active bending section, the first arcuate slit is arranged on the first side of the active bending section, and the first arcuate slit and the second arcuate groove are distributed along the circumference of the insertion portion; The connecting part connecting the front end assembly and the front end seat is the first connecting part, and the connecting part connecting the first rotating joint and the second rotating joint is the second connecting part. The stiffness of the first connecting part is greater than the stiffness of the second connecting part. When the active bending section is in a straight state, the first rotating joint and the second rotating joint form the first arc-shaped cut part and stop against each other.

8. An endoscope, characterized in that: include: The insertion portion according to any one of claims 1 to 7; as well as, A negative pressure suction valve is connected to the first channel.

9. The endoscope according to claim 8, characterized in that The negative pressure suction valve is in transmission connection with the first driving mechanism. When the negative pressure suction valve is opened, the driving mechanism drives the front end assembly to deflect toward the first side of the insertion portion.

10. The endoscope according to claim 9, characterized in that The endoscope also includes a traction wheel, the first driving mechanism is a traction rope suitable for driving the insertion part to deflect, the traction rope is connected to the traction wheel, and the first driving mechanism also includes a locking part, when the negative pressure suction valve is opened, the locking part can lock the traction wheel, when the negative pressure suction valve is closed, the locking part can release the traction wheel.

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