Flexible anal fistula mirror

Abstract

The flexible anal fistula mirror comprises an operation part and an intervention part which are sequentially connected from near to far, and at least part of the intervention part can be laterally bent and deformed so as to drive the direction of the far end of the intervention part to be adjustable; a liquid outlet channel penetrates through the intervention part in the far-near direction, and the liquid outlet channel forms at least two liquid outlets in the far end of the intervention part; the liquid outlet parameters of the at least two liquid outlets are set differently. The interventional component has bendability, bending control over the far end of the interventional component can be improved, and therefore an imaging device arranged at the far end of the interventional component can be effectively guided to move in the expected direction. External liquid can be sprayed out from the far end of the intervention component through any liquid outlet, and due to the fact that the liquid outlet parameters of the at least two liquid outlets are set differently, different liquid outlet effects can be achieved based on the same flexible anal fistula mirror, and therefore the use scenes of the flexible anal fistula mirror can be richer and more diversified.

Description

Technical Field

[0001] This invention relates to the field of anal fistula endoscope technology, and specifically to a flexible anal fistula endoscope. Background Technology

[0002] Endoscopes, as minimally invasive medical devices for examination and treatment, are primarily used for the diagnosis and treatment of various diseases. Inserted into the body through natural openings or small surgical incisions, they allow doctors to clearly observe the internal condition, diagnose various diseases, and perform various adjunctive treatments, such as polyp removal and lithotripsy.

[0003] The fistula endoscope is a specialized medical device used for the examination and treatment of anal fistulas. Its core technology is the Video-Assisted Treatment of Fistula (VAAFT) system, which allows for direct visualization and manipulation of all tracts and internal openings of the fistula. The fistula endoscope, a rigid endoscope with a diameter of 3-4 mm, is inserted through the external opening of the fistula tract to allow for visual exploration of the internal structure. It is used in conjunction with accessories such as electrocoagulation and grasping forceps to remove necrotic tissue and seal the internal opening. However, existing fistula endoscopes are generally made of metal, which can only ensure the strength of the endoscope but not its flexibility; existing fistula endoscopes have a fixed viewing angle and the glass column does not have enough curvature; the tip of existing fistula endoscopes does not have a bending control function, and cannot effectively guide the endoscope to move in the desired direction. Summary of the Invention

[0004] The main objective of this invention is to propose a flexible anal fistula endoscope, which aims to solve the problem that traditional anal fistula endoscopes lack flexibility and therefore cannot perform precise bending control.

[0005] To achieve the above objectives, the present invention proposes a flexible anal fistula endoscope, comprising an operating component and an intervention component connected sequentially from proximal to distal. At least a portion of the intervention component is laterally deformable to allow the distal end of the intervention component to be adjusted in orientation. The interventional component is provided with a fluid outlet channel along the proximal direction, and the fluid outlet channel forms at least two fluid outlets at the distal end of the interventional component; Among them, the discharge parameters of at least two of the discharge ports are set differently.

[0006] Optionally, each of the liquid outlets includes a first liquid outlet and a second liquid outlet, wherein the liquid outlet pressure of the first liquid outlet is less than the liquid outlet pressure of the second liquid outlet.

[0007] Optionally, the liquid outlet channel includes a first liquid outlet section and a second liquid outlet section, wherein the port of the first liquid outlet section constitutes the first liquid outlet. The flexible anal fistula endoscope also includes a high-pressure nozzle, which is connected to the second liquid outlet section, and the spray port of the high-pressure nozzle constitutes the second liquid outlet.

[0008] Optionally, the high-pressure nozzle is movably disposed relative to the intervention component so that the orientation of the second liquid outlet can be adjusted during its movement; The flexible fistula endoscope also includes a drive assembly, which is connected to the high-pressure nozzle drive assembly.

[0009] Optionally, the driving component includes a first magnetic attraction part, a second magnetic attraction part, and an adjustment member, wherein at least two of the first magnetic attraction parts and / or the second magnetic attraction parts are spaced apart. One of the first magnetic attraction part and the second magnetic attraction part is disposed at the proximal end of the high-pressure nozzle, and the other is disposed in the second liquid outlet section and located on the proximal side of the high-pressure nozzle; The adjusting member can selectively adjust the magnetic attraction between any of the first magnetic attraction parts and the second magnetic attraction parts to adjust the movement of the second liquid outlet to the corresponding orientation.

[0010] Optionally, the first magnetic attraction part and / or the second magnetic attraction part includes an electromagnet; The regulating element adjusts the electromagnet to switch between being energized and de-energized. Optionally, the adjusting member includes: A power supply circuit is connected to each of the first magnetic attraction parts and / or the second magnetic attraction parts, and forms a disconnected electrical terminal at each of the first magnetic attraction parts and the second magnetic attraction parts; and, A conductive part is movably disposed between the disconnected electrical terminals, and during its movement, the conductive part connects to any of the electrical terminals to conduct the power supply circuit.

[0011] Optionally, the adjusting member further includes a rotating handwheel, which is provided with the conductive part. The rotating handwheel is rotatably and movably disposed on the operating component and is at least partially exposed outside the operating component.

[0012] Optionally, two of the first magnetic attraction part and two of the second magnetic attraction part are provided in a one-to-one correspondence to form two magnetic attraction groups, and the two magnetic attraction groups are disposed on both sides of the central axis of the intervention component; When any of the magnetic suction groups is energized, the adjusting component causes the second liquid outlet to deflect toward the corresponding side of the central axis; When the adjusting component adjusts both magnetic suction groups to be energized, it drives the second liquid outlet to move in the positive direction along the central axis.

[0013] Optionally, the interventional component has at least two lateral bending directions; or, The interventional component has four lateral bending directions, two of which are symmetrical about a first radial direction of the interventional component, and the remaining two are symmetrical about a second radial direction of the interventional component. The first and second radial directions are arranged intersectingly.

[0014] Optionally, the interventional component includes a distal interventional segment and a proximal interventional segment connected sequentially from distal to proximal, at least a portion of the proximal interventional segment is locally laterally deformable, and at least the distal interventional segment has an installation channel extending along the proximal direction. The flexible fistula endoscope further includes an imaging device, which is exposed and installed at the installation channel; and / or, The maximum external diameter of the interventional component is no more than 2.5 mm.

[0015] In the technical solution provided by the present invention, the intervention component is configured to be at least partially laterally bendable and deformable, which can form a more suitable degree of curvature while ensuring strength, and helps to increase the bending control of the distal end of the intervention component, thereby effectively guiding the imaging device set at the distal end of the intervention component to move in the desired direction.

[0016] The flexible fistula endoscope connects to external fluid through a drainage channel. This allows external fluid to be ejected from the distal end of the interventional component through any drainage port, enabling the ejected fluid to, for example, wash the imaging surface of the imaging device. Since the drainage parameters of at least two drainage ports are set differently, different drainage effects can be achieved using the same flexible fistula endoscope. This helps to broaden the application scenarios of the flexible fistula endoscope and further improves its reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A first-view perspective perspective three-dimensional schematic diagram of an embodiment of the flexible anal fistula endoscope provided by the present invention; Figure 2 for Figure 1 A stereoscopic view of a flexible anal fistula endoscope from a second perspective; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 for Figure 1 A schematic diagram showing the main structural components of a flexible anal fistula endoscope; Figure 5for Figure 1 A three-dimensional schematic diagram of the central operating component; Figure 6 for Figure 1 A partial structural diagram of the distal segment of the interventional component; Figure 7 for Figure 6 A three-dimensional schematic diagram of a medium- and high-pressure nozzle from another perspective; Figure 8 for Figure 1 A three-dimensional diagram showing the central rotating handwheel in the first position; Figure 9 for Figure 1 A three-dimensional diagram showing the handwheel in the second position. Figure 10 for Figure 1 A three-dimensional diagram showing the handwheel in the second position.

[0019] Explanation of icon numbers: 100 Operating components; 110 Housing; 120 Cable reel; 131 First pipe connector; 132 Second pipe connector; 200 Intervention components; 201 Proximal intervention segment; 202 Distal intervention segment; 210 Outer tube; 220 First inner tube; 221 Working channel; 230 Second inner tube; 231 Mounting channel; 240 Third inner tube; 241 First liquid outlet segment; 242 First liquid outlet; 250 Fourth inner tube; 251 Second liquid outlet segment; 252 Second liquid outlet; 253 High-pressure nozzle; 260 Mounting base; 310 Imaging device; 320 Light source device; 510 First magnetic suction part; 520 Second magnetic suction part; 531 Power supply circuit; 531a First electrical connection segment; 531b Second electrical connection segment; 532 Conductive part; 540 Rotary handwheel.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] Please see Figures 1 to 10 This application provides a flexible anal fistula endoscope. The flexible anal fistula endoscope includes an operating component 100 and an interventional component 200 connected sequentially from proximal to distal. It should be noted that in the following embodiments, the direction in which the flexible anal fistula endoscope is preferentially brought closer to the patient during actual application is primarily considered the distal direction. The opposite of the distal direction is the proximal direction.

[0025] At least the distal portion of the interventional component 200 is typically inserted into the patient's body to guide a pre-set device located at the distal end of the interventional component 200 to a target location within the patient's body.

[0026] Based on this, the interventional component 200 is generally elongated in the proximal direction to facilitate movement along cavities within the patient's body. In practical applications, the interventional component 200 may generally consist of one or more tubes.

[0027] Specifically, for example, the intervention component 200 includes an outer tube 210 and at least one inner tube, which are sequentially nested together. Each inner tube can independently define a channel structure. When a large number of inner tubes are provided, all or part of them are arranged radially side-by-side at intervals. The outer tube 210 is fitted around all the inner tubes.

[0028] At least one of the inner tubes may be a first inner tube 220. The first inner tube 220 defines a working channel 221 that extends proximally. The working channel 221 is for medical instruments such as medical forceps to pass through, so as to facilitate the performance of relevant diagnostic and treatment operations at the target location using medical instruments.

[0029] The distal end of the intervention component 200 has an installation channel 231. In practical applications, at least one of the inner tubes can be a second inner tube 230. The second inner tube 230 defines the installation channel 231 that extends through the distal end.

[0030] The mounting channel 231 allows for the secure mounting of the aforementioned pre-installed device. Specifically, the pre-installed device may be, but is not limited to, an imaging device 310. The imaging device 310 is generally a CMOS (Complementary Metal-Oxide-Semiconductor). When the interventional component 200 moves the imaging device 310 to the target location, the imaging device 310 can capture image or video information at the target location and transmit this image or video information to an external central control device via wired or wireless communication, facilitating the operator to confirm the lesion condition at the target location based on the image or video information.

[0031] Next, the preset device may further include, for example, a light source device 320. The light source device 320 may include, for example, an LED lamp or an optical fiber. The light source device 320 is also mounted at the mounting channel 231 and is positioned adjacent to the imaging device 310.

[0032] To ensure a more secure assembly of the pre-installed device, the intervention component 200 may further include a mounting base 260. The mounting base 260 is mounted on the distal end of the outer tube 210 and can accommodate the aforementioned pre-installed device. The mounting base 260 may have a through-hole structure corresponding to at least one inner tube. This through-hole structure allows the inner tube to pass directly through. Alternatively, the through-hole structure may directly form an extension of the channel structure of the inner tube.

[0033] Based on the above, the intervention component 200 in this application is configured to be at least partially laterally bendable and deformable, so that the distal end of the intervention component 200 can be adjusted.

[0034] If the interventional component 200 is divided into a proximal interventional segment 201 and a distal interventional segment 202 connected sequentially from proximal to distal, then all or part of the portion corresponding to the outer tube 210 mentioned above can constitute the proximal interventional segment 201. At least the portion corresponding to the mounting base 260 can constitute the distal interventional segment 202.

[0035] At this point, part or all of the proximal intervention segment 201 is configured to be laterally deformable. This allows the mounting base 260 to move along with it after bending, ultimately guiding the imaging surface of, for example, the imaging device 310 to different orientations. Specifically, at least the proximal intervention segment 201 can be made of nickel-titanium metal, ensuring strength while providing better overall flexibility.

[0036] The intervention segment 202 can be configured to be virtually non-deformable. For example, the mounting base 260 can be made of a rigid material to provide sufficient structural strength to meet application requirements.

[0037] To trigger and reset the local lateral bending deformation of the intervention component 200, in a further embodiment, the intervention component 200 is provided with a wiring channel (not shown in the attached figure) at least towards its proximal end. Similarly, an inner tube can be specifically provided to define the wiring channel. Alternatively, the wiring channel can be formed by utilizing a portion of the aforementioned working channel 221 or mounting channel 231.

[0038] Next, the flexible fistula endoscope also includes a traction wire and a reel 120. The traction wire is threaded through a traction channel, and its distal end is connected to the sidewall of the intervention component 200. The reel 120 has a winding groove on its radial outer circumference. The winding groove allows the proximal section of the traction wire to be wound. The reel 120 is rotatably mounted on the operating component 100. During its rotation, it drives the traction wire to have a proximal driving stroke and a distal resetting stroke.

[0039] During the drive stroke, the traction cable is subjected to a proximal traction force. This traction force is applied through the traction cable to the side wall of the connected interventional component 200, causing lateral bending deformation at that location. Conversely, when the traction force is removed, the interventional component 200 performs a reset stroke, returning to its initial state.

[0040] After the traction wire is connected to one side of the interventional component 200, it can pull the interventional component 200 to bend and deform to that side, at which point the interventional component 200 has one bending direction. Depending on actual needs, the interventional component 200 can be provided with one or at least two bending directions. The number of traction wires and the number of bending directions of the interventional component 200 can be set in a one-to-one correspondence, so that the interventional component 200 can independently bend and deform along each bending direction.

[0041] When the interventional component 200 has two lateral bending directions, the line connecting the two lateral bending directions extends along a radial direction of the interventional component 200. In this case, the interventional component 200 can be bent and deformed along both sides of its radial direction.

[0042] When the interventional component 200 has four lateral bending directions, the line connecting two of the lateral bending directions extends along the first radial direction of the interventional component 200. The line connecting the remaining two lateral bending directions extends along the second radial direction of the interventional component 200. In this case, the first and second radial directions are intersecting. Preferably, the first and second radial directions are perpendicular or nearly perpendicular. Thus, the interventional component 200 has a four-way bending control function.

[0043] In the technical solution provided by the present invention, the intervention component 200 is configured to be at least partially laterally deformable, which can form a more suitable degree of curvature while ensuring strength, which helps to increase the bending control of the distal end of the intervention component 200, thereby effectively guiding, for example, the imaging device 310 set at the distal end of the intervention component 200 to move in the desired direction.

[0044] And specifically as Figures 1 to 2 , Figures 4 to 5 As shown, the operating component 100 may include a housing 110. An installation cavity is defined within the housing 110. A proximal portion of the intervention component 200 is inserted into the distal end of the housing 110 and partially extends into the installation cavity. This allows at least a portion of the channel structure of the intervention component 200 to communicate with the installation cavity, or to communicate with the outside through the installation cavity.

[0045] Accordingly, the outer wall of the housing 110 has a first opening that communicates with the mounting cavity. The main body of the cable reel 120 (e.g., the part for winding the traction cable) is housed within the mounting cavity. The remaining part of the cable reel 120 (e.g., the part for manual operation by the user) extends outward through the first opening and is exposed outside the operating component 100.

[0046] Based on one or more of the above embodiments, it can be understood that the intervention component 200 may also be provided with a fluid outlet channel along the proximal direction. Correspondingly, a pipe connector is provided through the inside and outside of the operating component 100.

[0047] Specifically, for example, when the operating component 100 includes the housing 110 as described above, a section of the pipe connector extending into the mounting cavity is directly or indirectly connected to the proximal end of the outlet pipe. The section of the pipe connector extending outside the mounting cavity is quickly connected to an external water source. In this way, an external water source can be accessed into the outlet pipe through the pipe connector.

[0048] The fluid outlet channel forms at least two fluid outlets at the distal end of the intervention component 200. The fluid outlet parameters of the at least two fluid outlets are set differently.

[0049] The flexible fistula endoscope connects to external fluid through a drainage channel. This allows external fluid to be ejected from the distal end of the intervention component 200 through any drainage port, enabling the ejected fluid to, for example, wash the imaging surface of the imaging device 310. Since the drainage parameters of at least two drainage ports are set differently, different drainage effects can be achieved using the same flexible fistula endoscope, thus enriching the application scenarios of the flexible fistula endoscope and improving its reliability.

[0050] With the mounting channel 231 and the working channel 221 configured as described above, the inner diameter of the mounting channel 231 is adapted to the outer diameter of the components it assembles, such as the imaging device 310 and the light source device 320. The inner diameter of the working channel 221 is set as large as possible to facilitate the insertion of a wider variety of auxiliary instruments.

[0051] Therefore, the installation channel 231 and the working channel 221 are generally arranged sequentially along one radial direction. At this time, each liquid outlet can be located on both sides of this radial direction, that is, on opposite sides of the installation channel 231 and the working channel 221 located in another radial direction. In this way, the liquid outlets can both make reasonable use of the remaining space and be close enough to the installation channel 231 and the working channel 221.

[0052] The specific parameters of the liquid outlet mentioned above are not limited, and can be one or more of the following: liquid outlet pressure, liquid outlet flow rate, liquid outlet location, liquid outlet type, liquid outlet timing, etc.

[0053] Specifically, in one embodiment, each outlet is configured to include a first outlet 242 and a second outlet 252. In this case, the outlet pressure of the first outlet 242 is lower than the outlet pressure of the second outlet 252. Thus, the same intervention component 200 can create at least two outlet effects at its distal end. For example, when a gentle water flow is required, the first outlet 242 can be opened and the second outlet 252 closed. Conversely, when a high-speed, high-pressure water flow is required, the second outlet 252 can be opened. In this case, the first outlet 242 can be selectively opened or closed.

[0054] To form at least two liquid outlets, in practical applications, the liquid outlet channel may include a first liquid outlet section 241 and a second liquid outlet section 251. The first liquid outlet section 241 defines a first liquid outlet 242. The second liquid outlet section 251 defines a second liquid outlet 252.

[0055] In one embodiment, the first outlet section 241 and the second outlet section 251 can be independently configured. That is, the first outlet section 241 and the second outlet section 251 are not interconnected. Specifically, for example, each inner tube also includes a third inner tube 240 and a fourth inner tube 250. The first outlet section 241 is defined within the third inner tube 240. The second outlet section 251 is defined within the fourth inner tube 250.

[0056] Correspondingly, the aforementioned pipe joints can also be configured as two, namely a first pipe joint 131 and a second pipe joint 132. The first pipe joint 131 is directly or indirectly connected to the third inner pipe body 240. The second pipe joint 132 is directly or indirectly connected to the fourth inner pipe body 250.

[0057] Alternatively, in another embodiment, the first outlet section 241 and the second outlet section 251 are at least partially connected. For example, the outlet channel also includes an inlet section. The inlet section connects to both the first outlet section 241 and the second outlet section 251. In this case, specifically, for example, each inner tube also includes a third inner tube 240, a fourth inner tube 250, and a fifth inner tube (not shown in the attached drawings). The third inner tube 240 defines the first outlet section 241. The fourth inner tube 250 defines the second outlet section 251. The fifth inner tube defines the inlet section. Subsequently, the third inner tube 240, the fourth inner tube 250, and the fifth inner tube can be connected in a switchable manner using a multi-way valve.

[0058] Correspondingly, the aforementioned pipe joint can also be set as one and connected to the fifth inner pipe body.

[0059] Based on any of the above embodiments, in order to form at least two outlets with different liquid pressures, the port of the first liquid outlet section 241 can be directly used as the first liquid outlet 242 without any additional settings for the port of the first liquid outlet section 241, which helps to simplify the forming of the first liquid outlet 242.

[0060] Next, the flexible fistula endoscope also includes a high-pressure nozzle 253. The high-pressure nozzle 253 is connected to the second discharge section 251. The high-pressure nozzle 253 has a through hole extending at least in the proximal direction. The proximal end of the through hole connects to the second discharge section 251. The distal end of the through hole serves as the main jet port, and after assembly, the jet port of the high-pressure nozzle 253 constitutes the second discharge port 252. In this way, the discharge pressure at the second discharge port 252 can be significantly increased by simply assembling the high-pressure nozzle 253 at the second discharge section 251.

[0061] The high-pressure nozzle 253 can be fixedly installed within the second liquid outlet section 251. That is, the orientation of the high-pressure nozzle 253 relative to the overall intervention component 200 remains basically fixed. This makes the orientation of the second liquid outlet 252, that is, the position and direction of the second liquid outlet 252, basically fixed.

[0062] Alternatively, depending on actual needs, in one embodiment, the high-pressure nozzle 253 is configured to be movably and adjustably mounted within the second liquid outlet section 251. That is, the high-pressure nozzle 253 is movably positioned relative to the intervention component 200. This allows the orientation of the second liquid outlet 252 to be arbitrarily adjusted during the movement of the high-pressure nozzle 253.

[0063] Furthermore, the flexible fistula endoscope also includes a drive assembly. The drive assembly is driven and connected to the high-pressure nozzle 253. The operator can manually or automatically control the movement of the high-pressure nozzle 253 based on the drive assembly.

[0064] It should be noted that the operation of the high-pressure nozzle 253 can occur before liquid is dispensed from it. That is, before the high-pressure nozzle 253 is started, the position and orientation of the second outlet 252 should be adjusted in advance according to actual needs. After adjustment, the high-pressure nozzle 253 is then started and liquid is dispensed.

[0065] Alternatively, the operation of the high-pressure nozzle 253 can also occur simultaneously with the liquid discharge from the high-pressure nozzle 253. That is, during the process of the high-pressure nozzle 253 starting up and discharging liquid, the position and orientation of the second liquid outlet 252 can be arbitrarily adjusted by the drive component as needed, thereby increasing the liquid discharge range of the second liquid outlet 252.

[0066] The movement mode of the high-pressure nozzle 253 is not restricted, which in turn allows for no restrictions on the specific design of the drive assembly.

[0067] like Figures 4 to 7 As shown, in one specific embodiment, the drive assembly includes a first magnetic attraction part 510, a second magnetic attraction part 520, and an adjusting member. At least two first magnetic attraction parts 510 and / or second magnetic attraction parts 520 are spaced apart. One of the first magnetic attraction part 510 and the second magnetic attraction part 520 is located near the proximal end of the high-pressure nozzle 253. The other is located within the second liquid outlet section 251 and near the high-pressure nozzle 253. The adjusting member can selectively adjust the magnetic attraction between any of the first magnetic attraction parts 510 and the second magnetic attraction part 520 to adjust the second liquid outlet 252 to a corresponding orientation.

[0068] In one example, the first magnetic attraction part 510 is disposed near the proximal end of the high-pressure nozzle 253, and the second magnetic attraction part 520 is disposed near the proximal side of the high-pressure nozzle 253. A first magnetic suction part 510 can be provided near the high-pressure nozzle 253. Correspondingly, multiple second magnetic suction parts 520 are arranged at intervals near the high-pressure nozzle 253. As the adjusting member controls the movement of the second magnetic suction parts 520 towards and away from the same first magnetic suction part 510, it drives the high-pressure nozzle 253 to adjust its position relative to the intervention component 200 and / or the orientation of the second liquid outlet 252. Once the movement is complete, the corresponding second magnetic suction part 520 and the first magnetic suction part 510 magnetically attract each other, locking the high-pressure nozzle 253 in its current orientation.

[0069] Alternatively, multiple first magnetic suction units 510 may be spaced apart near the proximal end of the high-pressure nozzle 253, and correspondingly, one second magnetic suction unit 520 may be located near the proximal side of the high-pressure nozzle 253. As the adjusting member controls the first magnetic suction unit 510 to move closer to and further away from the same second magnetic suction unit 520, it drives the high-pressure nozzle 253 to adjust its position relative to the intervention component 200 and / or the orientation of the second liquid outlet 252. Once the adjustment is complete, the corresponding first magnetic suction unit 510 and the second magnetic suction unit 520 magnetically attract each other, locking the high-pressure nozzle 253 in its current orientation.

[0070] Alternatively, multiple first magnetic suction units 510 can be spaced apart near the proximal end of the high-pressure nozzle 253. Correspondingly, multiple second magnetic suction units 520 can be spaced apart near the proximal side of the high-pressure nozzle 253. Each of the multiple second magnetic suction units 520 corresponds to one of the multiple first magnetic suction units 510. Similarly, as described above, the adjusting member controls the movement of different first magnetic suction units 510 towards and away from their corresponding second magnetic suction units 520, thereby adjusting the position of the high-pressure nozzle 253 relative to the intervention component 200 and / or the orientation of the second outlet 252. Once the position is reached, the corresponding first magnetic suction units 510 and second magnetic suction units 520 magnetically attract each other, locking the high-pressure nozzle 253 in its current orientation.

[0071] To controllable magnetic attraction states of the first magnetic attraction part 510 and the second magnetic attraction part 520, in a further embodiment, the first magnetic attraction part 510 and / or the second magnetic attraction part 520 include an electromagnet. Correspondingly, the adjusting member switches the electromagnet between energized and de-energized states. When the first magnetic attraction part 510 and / or the second magnetic attraction part 520 are energized, their magnetism is determined, allowing for magnetic attraction or repulsion between them. Conversely, when the first magnetic attraction part 510 and / or the second magnetic attraction part 520 are de-energized, their magnetism is not manifested, and the high-pressure nozzle 253 is not controlled by the driving assembly, generally being positioned fixed relative to the intervention component 200. Of course, when needed, the high-pressure nozzle 253 can also be configured to achieve corresponding adjustments under other preset external force.

[0072] Based on this, the configuration of the adjusting component can be, but is not limited to, a power supply circuit 531 and a conductive part 532.

[0073] The power supply circuit 531 is connected to each of the first magnetic attraction parts 510 and / or the second magnetic attraction parts 520, and forms a disconnected electrical terminal at each of the first magnetic attraction parts 510 and / or the second magnetic attraction parts 520.

[0074] The conductive part 532 is movably disposed between the disconnected electrical terminals. During its movement, the conductive part 532 can connect to any electrical terminal to conduct power supply circuit 531.

[0075] For example, if the power supply circuit 531 and the first magnetic part 510 are connected, a disconnected first electrical terminal will be formed. When the conductive part 532 is connected to the first electrical terminal, it is equivalent to the power supply circuit 531 where the first magnetic part 510 is located being turned on, which can provide power to the first magnetic part 510, so that the first magnetic part 510 is energized.

[0076] Similarly, if the power supply circuit 531 and the second magnetic suction part 520 are connected, a disconnected second electrical terminal will be formed. When the conductive part 532 is connected to the second electrical terminal, it is equivalent to the power supply circuit 531 where the second magnetic suction part 520 is located being turned on, which can provide power to the second magnetic suction part 520, so that the second magnetic suction part 520 is energized.

[0077] The conductive part 532 is at least partially made of a conductive material. In practical applications, the adjustment component also includes a rotary handwheel 540. The rotary handwheel 540 is provided with the conductive part 532. The rotary handwheel 540 is rotatably disposed on the operating member 100 and is at least partially exposed outside the operating member 100.

[0078] For example, when the operating component 100 includes a housing 110, the housing 110 may have a second opening spaced from the first opening. The second opening also connects to the mounting cavity. A portion of the rotating handwheel 540 extends into the mounting cavity through the first opening, and includes at least a conductive part 532. This allows the conductive part 532 to be connected to the power supply circuit 531 located within the mounting cavity. The remaining portion of the rotating handwheel 540 extends out of the mounting cavity through the first opening, forming a structure convenient for manual operation by the operator. Thus, the operator's manual operation can rotate the rotating handwheel 540, thereby moving the conductive part 532.

[0079] It should be noted that the rotary handwheel 540 can also be configured with other rotary structures. Alternatively, the rotary handwheel 540 can be replaced by other translational trigger structures. Such trigger structures could be, for example, paddles, levers, or buttons. Then, by operating the translational movement of this trigger structure, the conductive part 532 is moved.

[0080] The movement trajectory of the conductive part 532 passes through the electrical connection positions of each of the first magnetic attraction parts 510 and the second magnetic attraction parts 520, thereby allowing it to flexibly switch between connecting or disconnecting any electrical connection during its movement.

[0081] Specifically, this is illustrated by taking the example of a high-pressure nozzle 253 that can rotate relative to the intervention component 200, and the second outlet 252 having three adjustable orientation options: Two first magnetic attracting parts 510 and two second magnetic attracting parts 520 are provided in a one-to-one correspondence. Each corresponding first magnetic attracting part 510 and second magnetic attracting part 520 constitutes a magnetic attracting group. Therefore, the whole assembly constitutes two magnetic attracting groups. The two magnetic attracting groups are located on both sides of the central axis of the intervention component 200. Furthermore, when power is lost, a certain orientation difference is formed between the first magnetic attracting parts 510 and the second magnetic attracting parts 520. For example, the two first magnetic attracting parts 510 are located between the two second magnetic attracting parts 520.

[0082] It should be noted that the connection between the two magnetic traction assemblies is not necessarily required to pass through the central axis of the interventional component 200. Depending on the actual needs, the connection between the two magnetic traction assemblies can be located radially to the side of the central axis of the interventional component 200.

[0083] Specifically, when any one of the magnetic suction groups is energized, the adjusting member causes the second liquid outlet 252 to deflect toward the corresponding side of the central axis. Furthermore, when both magnetic suction groups are energized, the adjusting member causes the second liquid outlet 252 to move in the positive direction along the central axis.

[0084] Specifically, taking the two sides of the central axis of the intervention component 200 as the upper and lower sides respectively (it should be noted that the upper and lower sides here are not limited to the upper and lower sides in the direction of gravity), the two magnetic attraction groups are set on the upper and lower sides of the central axis of the intervention component 200.

[0085] When the adjusting component is energized in adjusting the magnetic attraction group located on the upper side, that is, when the second magnetic attraction part 520 and the first magnetic attraction part 510 located at a certain distance below it are magnetically attracted, it can drive the high pressure nozzle 253 to deflect downward, and finally make the second liquid outlet 252 slightly downward.

[0086] Alternatively, when the adjusting member is energized in adjusting the magnetic attraction group located on the lower side, that is, when the second magnetic attraction part 520 and the first magnetic attraction part 510 located at a certain distance above it are magnetically attracted, it can drive the high-pressure nozzle 253 to deflect upward, ultimately causing the second liquid outlet 252 to be slightly upward.

[0087] Alternatively, when the adjusting component is energized after both magnetic suction groups are energized, the two magnetic suction groups form a magnetic attraction force that is level with each other above and below the second liquid outlet 252, causing the high-pressure nozzle 253 to remain basically undeflected, and ultimately causing the second liquid outlet 252 to face the far side along the central axis of the intervention component 200.

[0088] Of course, in other solutions, the same first magnetic attraction part 510 and two second magnetic attraction parts 520 can together form two magnetic attraction groups. Alternatively, three first magnetic attraction parts 510 and three second magnetic attraction parts 520 can be paired one-to-one to form three magnetic attraction groups. Or the first magnetic attraction parts 510 and the second magnetic attraction parts 520 can be interchanged, etc., without limitation.

[0089] Specifically, such as Figures 8 to 10 As shown, in one specific embodiment, the magnetic assemblies are configured as described above as two. The power supply circuit 531 includes a first electrical connection segment 531a connected to the second magnetic part 520 in the upper magnetic assembly. A break in the first electrical connection segment 531a constitutes a second electrical connection terminal in the upper assembly. The power supply circuit 531 also includes a second electrical connection segment 531b connected to the second magnetic part 520 in the lower magnetic assembly. A break in the second electrical connection segment 531b constitutes a second electrical connection terminal in the lower assembly.

[0090] The adjusting component is specifically a rotary handwheel 540. Three adjusting contacts are spaced apart along the circumference of the rotary handwheel 540. These three adjusting contacts each constitute a conductive part 532.

[0091] Firstly, as Figure 8 As shown, after the handwheel 540 is rotated to its first position, one of the three conductive parts 532 is connected to the first electrical connection section 531a. The remaining two conductive parts 532 are not connected to the second electrical connection section 531b. At this time, the second magnetic suction part 520 located above is energized, which can drive the high-pressure nozzle 253 to deflect downward, ultimately causing the second liquid outlet 252 to point slightly downward.

[0092] Then as Figure 9 As shown, after the handwheel 540 continues to rotate along the dotted line to its second position, one of the three conductive parts 532 connects to the second electrical connection section 531b. The remaining two conductive parts 532 are not connected to the first electrical connection section 531a. At this time, the second magnetic suction part 520 located below is energized, which can drive the high-pressure nozzle 253 to deflect upward, ultimately causing the second liquid outlet 252 to face slightly upward.

[0093] Finally, as Figure 10 As shown, after the handwheel 540 continues to rotate along the dotted line to its third position, one of the three conductive parts 532 connects to the first electrical connection segment 531a. Simultaneously, the other conductive part 532 connects to the second electrical connection segment 531b. At this point, both the upper and lower second magnetic suction parts 520 are energized, causing the high-pressure nozzle 253 to remain essentially stationary, and ultimately causing the second liquid outlet 252 to point distally along the central axis of the intervention component 200.

[0094] When the high-pressure nozzle 253, as described above, is primarily a rotary motion, and this rotation adjusts the orientation of the second outlet 252, specifically, the outer surface of the portion of the high-pressure nozzle 253 that is at least fitted within the second outlet section 251 is spherically shaped. In this case, the corresponding portion of the second outlet section 251 is suitable for the high-pressure nozzle 253. This makes the movement of the high-pressure nozzle 253 and the second outlet section 251 similar to a multi-directional rotary fit between a ball bearing and a groove, allowing the high-pressure nozzle 253 to rotate in all directions. Ultimately, this results in a wider range of orientation adjustment for the second outlet 252.

[0095] Based on one or more of the above embodiments, it can be understood that when applying a flexible fistula endoscope in actual diagnosis and treatment, the flexible fistula endoscope can be used in conjunction with an existing rigid fistula endoscope. In this case, the rigid fistula endoscope has an instrument channel extending along its proximal and distal directions. The aforementioned interventional component 200 of the flexible fistula endoscope passes through this instrument channel.

[0096] Therefore, in a further design, the maximum outer diameter of the intervention component 200 is not greater than the minimum inner diameter of the instrument channel, so that the intervention component 200 can pass smoothly through the instrument channel under external force. This allows for flexible adaptation between the flexible fistula endoscope and the rigid fistula endoscope, making the application scenarios of the flexible fistula endoscope more diverse and helping to improve the reliability of the flexible fistula endoscope.

[0097] Specifically, the flexible fistula endoscope provided in this application can be used in conjunction with a fixed-size rigid fistula endoscope. In this case, the outer diameter of the intervention component 200 in the fistula software can be set to a fixed value that remains essentially constant.

[0098] For example, if the inner diameter (minimum inner diameter) of the instrument channel of a rigid fistula endoscope is approximately 2.5 mm, the maximum outer diameter of the intervention component 200 is also set to be no greater than 2.5 mm. The larger the gap between the two, the more convenient it is to insert the flexible fistula endoscope into the instrument channel, but it is easy to increase the difficulty of shaping the flexible fistula endoscope and the insertion toughness.

[0099] Next, when the intervention component 200 includes a distal intervention segment 202 and a proximal intervention segment 201 as described above, specifically, the outer diameter of the distal intervention segment 202 can be set to be no less than the outer diameter of the proximal intervention segment 201. This can increase the flexibility of the proximal intervention segment 201 and the rigidity of the distal intervention segment 202 to a certain extent. That is, it is beneficial for the bendable deformation adjustment of the proximal intervention segment 201, and also beneficial for providing sufficient support strength for the installation of the imaging device 310, etc., at the distal intervention segment 202.

[0100] Similarly, when the minimum inner diameter of the instrument channel of a rigid fistula endoscope used with a flexible fistula endoscope is 2.5 mm, in a specific application, the maximum outer diameter of the distal segment 202 can be set to no more than 2.4 mm. And / or, the maximum outer diameter of the proximal segment 201 can be set to no more than 2.3 mm. Of course, the maximum outer diameters of the proximal segment 201 and the distal segment 202 can be set differently according to actual needs, without limitation.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A flexible anoscope, characterized in that, It includes an operating component and an intervention component connected sequentially from proximal to distal, wherein at least a portion of the intervention component is laterally deformable to allow the distal end of the intervention component to be oriented in an adjustable manner; The interventional component is provided with a fluid outlet channel along the proximal direction, and the fluid outlet channel forms at least two fluid outlets at the distal end of the interventional component; Among them, the discharge parameters of at least two of the discharge ports are set differently.

2. The flexible anal fistula endoscope as described in claim 1, characterized in that, Each of the liquid outlets includes a first liquid outlet and a second liquid outlet, wherein the liquid outlet pressure of the first liquid outlet is less than the liquid outlet pressure of the second liquid outlet.

3. The flexible anal fistula endoscope as described in claim 2, characterized in that, The liquid outlet channel includes a first liquid outlet section and a second liquid outlet section, and the port of the first liquid outlet section constitutes the first liquid outlet. The flexible anal fistula endoscope also includes a high-pressure nozzle, which is connected to the second liquid outlet section, and the spray port of the high-pressure nozzle constitutes the second liquid outlet.

4. The flexible anal fistula endoscope as described in claim 3, characterized in that, The high-pressure nozzle is movably disposed relative to the intervention component so that the orientation of the second liquid outlet can be adjusted during its movement. The flexible fistula endoscope also includes a drive assembly, which is connected to the high-pressure nozzle drive assembly.

5. The flexible anal fistula endoscope as described in claim 4, characterized in that, The driving component includes a first magnetic attraction part, a second magnetic attraction part, and an adjustment member, wherein at least two of the first magnetic attraction parts and / or the second magnetic attraction parts are spaced apart. One of the first magnetic attraction part and the second magnetic attraction part is disposed at the proximal end of the high-pressure nozzle, and the other is disposed in the second liquid outlet section and located on the proximal side of the high-pressure nozzle; The adjusting member can selectively adjust the magnetic attraction between any of the first magnetic attraction parts and the second magnetic attraction parts to adjust the movement of the second liquid outlet to the corresponding orientation.

6. The flexible anal fistula endoscope as described in claim 5, characterized in that, The first magnetic attraction part and / or the second magnetic attraction part includes an electromagnet; The regulating element adjusts the switching of the electromagnet between being energized and de-energized.

7. The flexible anal fistula endoscope as described in claim 6, characterized in that, The adjusting element includes: A power supply circuit is connected to each of the first magnetic attraction portions and / or the second magnetic attraction portions, and forms a disconnected electrical terminal at each of the first magnetic attraction portions and / or the second magnetic attraction portions; and, A conductive part is movably disposed between the disconnected electrical terminals, and during its movement, the conductive part connects to any of the electrical terminals to conduct the power supply circuit.

8. The flexible anal fistula endoscope as described in claim 7, characterized in that, The adjusting component also includes a rotating handwheel, which is provided with the conductive part. The rotating handwheel is rotatably and movably disposed on the operating component and is at least partially exposed outside the operating component.

9. The flexible anal fistula endoscope as described in claim 5, characterized in that, The first magnetic attraction part and the second magnetic attraction part are provided in two corresponding parts to form two magnetic attraction groups. The two magnetic attraction groups are located on both sides of the central axis of the intervention component. When any of the magnetic suction groups is energized, the adjusting component causes the second liquid outlet to deflect toward the corresponding side of the central axis; When the adjusting component adjusts both magnetic suction groups to be energized, it drives the second liquid outlet to move in the positive direction along the central axis.

10. The flexible anal fistula endoscope as described in claim 1, characterized in that, The interventional component has at least two lateral bending directions; or... The interventional component has four lateral bending directions, two of which are symmetrical about a first radial direction of the interventional component, and the remaining two are symmetrical about a second radial direction of the interventional component. The first and second radial directions are arranged intersectingly.

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