A multifunctional endoscope and an endoscope system

Abstract

The present application relates to a kind of multifunctional endoscope and endoscope system.Multifunctional endoscope includes endoscope body and optical catheter, endoscope body includes handle and endoscope catheter, endoscope body is equipped with channel sleeve kit in channel, the distal end of optical catheter is arc closed end, the proximal end is open end, at least the closed end of optical catheter is light-transmitting structure, optical catheter can be set on endoscope catheter by open end, and the open end of optical catheter and the distal end of handle or the proximal end of endoscope catheter are provided with the buckle structure of lockable matching connection.Multifunctional endoscope of the present application is highly integrated, can be used for the visualization puncture of tissue and the visualization suction, flushing, electrocoagulation etc after puncture Operation, and even if front end contact tissue can be clearly imaged in puncture process, and can avoid the problem that lens is stuck to blood or other tissue to cause blurred vision, and simple structure, easy to use, with good application prospect.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, and more specifically, to a multifunctional endoscope and an endoscope system. Background Technology

[0002] Intracranial hematoma is a serious neurological disorder, commonly resulting from complications following trauma, cerebral hemorrhage, or surgery. Timely diagnosis and treatment are crucial for saving lives and restoring health. Traditional treatments for intracranial hematoma include small craniotomy and stereotactic puncture, but these methods are invasive, high-risk, and complex. Neuroendoscopic techniques are a minimally invasive surgical approach and an important direction in neurosurgery. Using an endoscope, the surgical area is accessed through natural cavities or small incisions. The endoscope provides illumination and visualization, allowing for close observation and clear identification of the hematoma and adjacent tissues for accurate management. It also allows for direct observation of the hematoma's extent, ensuring reliable aspiration, irrigation, and hemostasis.

[0003] Most endoscopes on the market currently have a minimum focal length of 3mm. If the distance between the endoscope and the target is less than 3mm, the target cannot be clearly seen on the endoscopic monitor. Therefore, conventional endoscopes maintain a distance of more than 3mm between the lens and the target to ensure clear observation. However, in medical procedures such as brain tissue visualization puncture, the endoscope serves as both an observation mirror and a puncture needle for creating a pathway. Endoscopes used in these procedures require clear visibility of the target even when the distance is less than 3mm or the tip is directly against the tissue, and the endoscopic monitor must display a clear image. Conventional endoscopes often fail to meet the requirements for tissue visualization puncture. While endoscopes designed for these applications exist, their complex structure, inconvenient manufacturing and use, and the risk of leakage are significant. If the lens comes into contact with blood or other tissue, the image will become blurry, rendering the endoscope ineffective.

[0004] In addition to providing illumination and enabling visualized puncture, intracranial hematoma evacuation surgery also requires allowing surgeons to perform procedures such as aspiration, irrigation, coagulation, and debridement as needed during the treatment. Currently, brain puncture is typically performed first using a visualized brain needle or endoscope to visually locate, position, and confirm the hematoma. Then, other devices are used for irrigation, aspiration, coagulation, and debridement. This results in large surgical wounds, requires collaborative work between the surgeon and assistants, is complex, and time-consuming, increasing surgical risks. Existing single-function endoscopic products cannot simultaneously meet the clinical needs of visualized puncture and visualized aspiration for hematoma evacuation. Therefore, developing an endoscopic product capable of visualized puncture, establishing a surgical channel, and post-puncture hematoma aspiration is of great significance. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing endoscopes in tissue puncture, such as poor visualization, limited functionality, complex structure, and inconvenient operation, and to provide a multifunctional endoscope and endoscope system. The multifunctional endoscope of this invention is highly integrated and can be used for visualized tissue puncture and subsequent visualized aspiration and irrigation. Furthermore, it provides clear imaging even when the tip contacts the tissue during puncture, and avoids the problem of leakage causing the lens to stick to blood or other tissues and resulting in blurred vision. It is convenient to use and has a simple structure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A multifunctional endoscope is provided, comprising an endoscope body and an optical conduit: the endoscope body includes a handle and an endoscope conduit, the endoscope conduit being fixedly connected to the handle; the endoscope body contains a visualization module and a forceps channel kit; the visualization module includes an endoscope module disposed at the distal end of the endoscope conduit; the forceps channel kit passes through both ends of the endoscope body and is used to allow instruments to pass through the endoscope body from outside the patient and into the surgical site; the optical conduit is a tubular structure, the distal end of the optical conduit is an arc-shaped closed end, and the proximal end is an open end; at least its closed end is a light-transmitting structure; the optical conduit can be fitted onto the endoscope conduit through the open end; and a matching and locking buckle structure is provided between the open end of the optical conduit and the distal end of the handle or the proximal end of the endoscope conduit.

[0008] Preferably, the optical catheter is entirely transparent, which expands the field of vision during puncture, not just limiting the visualization of tissues directly in front. The axial length of the optical catheter is slightly greater than the axial length of the portion of the endoscopic catheter outside the handle, allowing the opening of the optical catheter to reach near the proximal end of the endoscopic catheter and the distal end of the handle, completely covering the portion of the endoscopic catheter inserted into the body during surgery.

[0009] This invention presents a highly integrated multifunctional endoscope capable of visual puncture of tissues and subsequent visual aspiration and irrigation procedures. It ensures high-quality imaging during puncture, minimizes surgical trauma, and facilitates operation. During visual puncture, the optical conduit is fitted over the endoscope conduit. The arc-shaped closed end of the optical conduit serves as the object distance for imaging, maintaining clear imaging even when the object distance is less than the endoscope's minimum focal length or when the endoscope tip is in contact with tissue. This also prevents damage to brain tissue during puncture. Furthermore, the open end of the optical conduit reaches near the proximal end of the endoscope conduit and the distal end of the handle, connecting to either end. During surgery, it completely covers the portion of the endoscope conduit inserted into the body, providing excellent protection for the endoscope module and preventing leakage that could cause the lens to adhere to blood or other tissues, resulting in blurred images. Moreover, this invention incorporates a snap-fit ​​structure between the endoscope body and the optical conduit. This snap-fit ​​structure allows for quick and easy locking of the optical conduit to the endoscope body, offering convenient operation, a simple structure, and ease of processing and production. When the multifunctional endoscope of the present invention is used to perform visualized surgical operations such as aspiration, irrigation, debridement, and electrocoagulation, after removing the optical catheter, the surgeon can insert any one of the following instruments into the forceps channel kit as needed: aspiration device, irrigation device, electrocoagulation device, debridement device, catheter, etc., to perform surgical operations such as aspiration, irrigation, electrocoagulation, debridement, and drug administration under visualization, which can meet various needs in intracranial hematoma removal surgery.

[0010] Furthermore, the latching structure is an elastic latch, and the optical catheter and the endoscope body are locked together and disassembled through the elastic latch. Using an elastic latch as the latching structure of this invention allows for rapid installation and disassembly of the optical catheter and the endoscope body, enabling quick switching between locked connection and disassembly states. This facilitates the surgeon's ability to quickly disassemble the optical catheter and switch to the post-puncture surgical procedure after visualization of the puncture, simplifying the operation and saving surgical time.

[0011] Furthermore, the snap-fit ​​structure includes a snap-fit ​​portion located on the outer periphery of the optical guide tube opening and a retaining portion located at the distal end of the handle and extending toward the distal end of the endoscope guide tube. The optical guide tube can move along the endoscope guide tube to the retaining portion, thereby enabling the retaining portion and the snap-fit ​​portion to be snapped together and locked. Positioning the retaining portion at the distal end of the handle and the snap-fit ​​portion on the outer periphery of the optical guide tube opening facilitates the processing and forming of the snap-fit ​​structure and the stable connection between the two.

[0012] Furthermore, the buckle is recessed or protrudes from the outer side of the opening end of the optical guide tube. The locking part includes a locking end and a flexible locking arm. The locking arm is located between the locking end and the distal end of the handle. The locking end can at least partially engage with the buckle to achieve a locking connection and locking. The flexible locking arm makes the locking part a cantilever beam structure, which facilitates quick installation and removal between the optical guide tube and the handle.

[0013] Furthermore, the latching end includes an insertion surface and a retaining surface sequentially arranged along the distal to proximal direction of the handle, with the distance between the insertion surface and the central axis of the handle gradually decreasing from the distal to the proximal end. The insertion surface has a guiding function, allowing the latching arm to deform more easily as the optical guide tube moves along the endoscope guide tube towards the handle, while the retaining surface allows the latching end to engage with the latching part to achieve latching connection and locking.

[0014] Furthermore, the fastening part consists of one or two axially arranged flange rings protruding from the outer side of the opening end of the optical guide tube. The locking end is engaged in the edge of one of the flange rings or in the groove between the two flange rings. When the fastening part is a flange ring, the optical guide tube can be inserted arbitrarily along the endoscope guide tube, and the locking end will automatically slide into the fastening part to achieve a locking connection without the need for deliberate alignment. This effectively prevents the optical guide tube from accidentally separating from the endoscope body due to rotation.

[0015] Furthermore, the latching part consists of one or more protrusions circumferentially arranged or two protrusions axially arranged protruding from the outer side of the opening end of the optical guide tube, and the latching end is engaged in the edge of the protrusion or in the groove between the two protrusions. When connecting the optical guide tube to the endoscope body, the latching end needs to be aligned with the protrusion to achieve latching connection and locking.

[0016] Furthermore, at least two latches are distributed axially on the outer side of the opening end of the optical conduit, and any one of the latches can be engaged and locked with the locking part. This design allows the operator to change the axial position of the optical conduit relative to the endoscope conduit as needed, thereby changing the distance between the distal end of the optical conduit and the endoscope module. This allows for adjustment of the size and clarity of the field of view, and is also applicable to clear imaging with lenses of different focal lengths, thus broadening its applicability and increasing the operator's operational flexibility.

[0017] Preferably, the fastening part is a flange ring protruding from the outer circumferential surface of the open end of the optical guide tube. In this case, two or more flange rings are provided on the outer circumferential surface of the open end of the optical guide tube, preferably three or more flange rings. When the optical guide tube is fitted onto the endoscope guide tube and moved axially proximally, the fastening end automatically engages with the edge of one of the flange rings or the groove between two adjacent flange rings to achieve a locking connection. At this time, the movement of the optical guide tube in both the front and rear directions along the endoscope guide tube is restricted, and it can effectively prevent the optical guide tube from accidentally separating from the endoscope body due to rotation. By setting multiple axially distributed flange rings, the distance between the distal end of the optical guide tube and the endoscope module can be adjusted in stages, making operation more convenient. More preferably, the flange ring located near the open end of the optical guide tube has its proximal end face flush with the proximal end face of the optical guide tube, which facilitates processing and is more aesthetically pleasing.

[0018] Furthermore, the closed end is a hemispherical structure with equal wall thickness at all points, or the wall thickness at the center of the hemispherical structure is less than the wall thickness at other points. This design reduces the impact of reflected light from the light source, resulting in a clearer field of view.

[0019] Furthermore, the forceps channel kit includes a tapered guide and a forceps tube. The tapered guide is installed at the proximal end of the handle, with its wider end facing the proximal end of the handle. The forceps tube is a straight tubular tube disposed within the endoscopic catheter, with its distal end positioned at the distal end of the endoscopic catheter. The proximal end of the forceps tube connects to the tapered guide and communicates with the outside through the tapered guide. The inner lumen of the forceps tube communicates with the inner lumen of the tapered guide, forming a forceps channel penetrating both ends of the endoscope body. The tapered guide guides the insertion of instruments such as suction devices, electrocoagulation devices, flushing devices, debridement devices, and catheters into the forceps tube, eliminating the need for precise alignment during insertion.

[0020] Furthermore, the endoscope body also includes a water system kit connected to an external power water source. The water system kit includes an insertion end tube disposed within the endoscope catheter. The distal end of the insertion end tube is located at the distal end of the endoscope catheter, and the proximal end of the insertion end tube is located inside or protrudes from the proximal end of the handle, thus allowing for indirect or direct connection to an external power water source. The water system kit can be connected to an external power water source, enabling the multi-functional endoscope to have a flushing function. Combined with the insertion of any of the following instruments into the forceps channel kit: a suction device, an electrocoagulation device, a debridement device, or a catheter, other surgical procedures can be performed simultaneously with flushing.

[0021] Preferably, the water system kit has two insertion end tubes, the proximal ends of which are connected and merged into a water pipe connecting tube via a connector. The water pipe connecting tube extends beyond the handle, and a switch valve is provided on the pipe outside the handle, with a Luer connector at its end. This facilitates the connection of the flushing pipe and the adjustment of the flow rate, and enables uniform flushing over a large area.

[0022] Furthermore, the visualization module includes a PCB board, cables, and a USB interface. The endoscope module is connected to the PCB board, and the USB interface is connected to the PCB board via cables. The PCB board is located inside the handle, and the USB interface is located outside the handle. The endoscope module includes a lens, a chip, and a light source, and is integrated into the distal end of the endoscope catheter. The lens, chip, and light source are packaged into a single unit and installed at the distal end of the endoscope catheter. The light source is positioned around the lens to provide illumination for imaging. The image acquired by the lens is transmitted to the chip via cables, and then from the chip to the PCB board via cables. When the USB interface is connected to a display screen, the image acquired by the lens is displayed on the screen. In addition to signal transmission, the cables also provide the current required for the normal operation of the lens, chip, and light source.

[0023] Furthermore, the endoscopic catheter includes a hollow steel tube and a mounting module disposed at the distal end of the steel tube. The mounting module has a first mounting hole for mounting the endoscope module and a second mounting hole for mounting the distal end of the forceps channel kit. The central axes of the first and second mounting holes are both offset from the central axis of the mounting module. This configuration fully utilizes the mounting space of the mounting module to fix the endoscope module and the forceps channel to the distal end of the endoscopic catheter, and avoids interference between the endoscope module and surgical instruments such as suction devices, electrocoagulation devices, flushing devices, or debridement devices passing through the forceps channel kit. This allows surgical operations such as suction, electrocoagulation, flushing, and debridement to be performed under good visualization. In addition, when the flushing device is set independently of the forceps channel, i.e., the water circuit kit described above, the mounting module also has a third mounting hole for fixing the distal end of the insertion tube, which further avoids interference between the endoscope module and the water circuit kit and other surgical instruments passing through the forceps channel kit.

[0024] Furthermore, the handle is a pistol-shaped handle or a straight handle. The shape of the handle is set according to the needs of the usage scenario and is not intended to limit the invention.

[0025] The present invention also provides a multifunctional endoscope system, including a brain retractor, surgical instruments, and a multifunctional endoscope as described above. The brain retractor is provided with a through hole through which the optical conduit can pass. The surgical instruments are one or more of a suction device, an electrocoagulation device, a flushing device, or a debridement device. The tubular portion of the surgical instruments can pass through the forceps channel kit and extend into the surgical site to perform surgical operations.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] This invention relates to a multifunctional endoscope, which features an optical sheath on the endoscope catheter, with the proximal end of the optical sheath locked to the proximal end of the endoscope catheter or the distal end of the endoscope handle. During surgery, the optical catheter completely covers the portion of the endoscope catheter that enters the body, effectively preventing leakage during puncture that could cause the lens to stick to blood or other tissue blood, affecting clear imaging. Furthermore, the closed end of the optical catheter can replace the object distance used for imaging, enabling clear imaging even when the tip of the endoscope contacts tissue during puncture, resulting in excellent visualization.

[0028] This invention relates to a multifunctional endoscope. By incorporating a snap-fit ​​structure between the optical catheter and the endoscope body, and with a specially designed snap-fit ​​structure, it enables rapid installation and disassembly of the optical catheter and endoscope body, improving operational convenience and surgical efficiency. Furthermore, the structure is simple, facilitating processing and production. When multiple snap-fit ​​sections are provided along the axial direction of the optical catheter, the surgeon can adjust the distance between the distal end of the optical catheter and the endoscope module as needed, thereby adjusting the size and clarity of the field of view. It is also suitable for clear imaging with lenses of different focal lengths, offering greater operational flexibility.

[0029] The multifunctional endoscope of this invention can be used for tissue visualization puncture and is also equipped with a forceps channel kit. Any surgical instrument such as a suction device, electrocoagulation device or debridement device can be inserted into the forceps channel kit to realize a variety of visualized surgical operations. With the water circuit kit independent of the forceps channel kit, it is possible to perform visualized suction, electrocoagulation, debridement and other surgical operations while visually flushing, which improves surgical efficiency. Attached Figure Description

[0030] Figure 1 This is a perspective view of the multifunctional endoscope of the present invention;

[0031] Figure 2 This is a schematic diagram of the endoscope body and optical guide tube.

[0032] Figure 3 A schematic diagram of the structure of the endoscope body with a pistol-shaped handle;

[0033] Figure 4A schematic diagram of the structure of a multifunctional endoscope from the first-view perspective;

[0034] Figure 5 This is a schematic diagram of the second perspective of a multi-functional endoscope;

[0035] Figure 6 This is a schematic diagram of the internal structure of a multifunctional endoscope;

[0036] Figure 7 This is a schematic diagram of the optical conduit of a multifunctional endoscope.

[0037] Figure 8 for Figure 4 A magnified schematic diagram of part A in the middle;

[0038] Figure 9 A schematic diagram of the structure of the endoscope body with a straight handle;

[0039] Figure 10 A schematic diagram of a snap-fit ​​structure connecting an optical guide tube to the endoscope body;

[0040] Figure 11 This is a schematic diagram of another snap-fit ​​structure for connecting the optical guide tube to the endoscope body;

[0041] Figure 12 A schematic diagram of the forceps channel kit for a multifunctional endoscope;

[0042] Figure 13 This is a schematic diagram showing the connection between the cone-shaped guide and the handle.

[0043] Figure 14 A schematic diagram of the water system kit for a multifunctional endoscope;

[0044] Figure 15 This is a schematic diagram of the visualization module of a multifunctional endoscope.

[0045] Figure 16 This is a schematic diagram of the distal endoscope catheter of a multifunctional endoscope.

[0046] In the attached diagram: 10. Endoscope body; 100. Optical guide tube; 110. Open end; 120. Closed end; 200. Handle; 210. Front housing; 220. Rear housing; 240. Protrusion; 250. Connecting part; 260. Grip part; 270. Through hole; 280. Mounting platform; 300. Endoscope guide tube; 310. Mounting module; 311. Mounting step; 312. First mounting hole; 313. Second mounting hole; 314. Third mounting hole; 400. Visualization module; 410. Endoscope module; 420. PCB board; 430. Cable; 440. USB connector 500, snap-fit ​​structure; 510, snap-fit ​​part; 511, snap-fit ​​end; 512, snap-fit ​​arm; 513, insertion surface; 514, retaining surface; 515, connecting surface; 520, snap-fit ​​part; 521, flange ring; 522, slot; 600, clamp channel kit; 610, conical guide; 611, tubular part; 612, conical part; 613, mounting frustum part; 620, clamp channel tube; 630, clamp channel; 700, water circuit kit; 710, insertion end tube; 720, water pipe connection tube; 730, switch valve; 740, Luer connector; 750, connector. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0048] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0049] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0050] In addition, in this invention, "distal" and "proximal" refer to the distance of the multifunctional endoscope from the patient during use. The distal end refers to the end of the multifunctional endoscope closer to the patient during use, while the proximal end refers to the end of the multifunctional endoscope further away from the patient. Specifically, the proximal end of the handle, the proximal end of the optical conduit, the proximal end of the forceps channel kit (or forceps tube), and the proximal end of the insertion tube all refer to the end further away from the patient during surgery, while the distal end of the handle, the distal end of the optical conduit, the distal end of the forceps channel kit (or forceps tube), and the distal end of the insertion tube all refer to the end closer to the patient or inserted into the patient's body during surgery.

[0051] Example 1

[0052] This embodiment is a first embodiment of a multifunctional endoscope, including an endoscope body 10 and an optical conduit 100. The endoscope body 10 includes a handle 200 and an endoscope conduit 300. The endoscope conduit 300 is partially inserted into and fixedly connected to the handle 200. A visualization module 400 is disposed within the endoscope body 10. The visualization module 400 is used for imaging to achieve visualization. The visualization module 400 includes an endoscope module 410 disposed at the distal end of the endoscope conduit 300, such as... Figures 1 to 6 As shown.

[0053] In this embodiment, the optical guide 100 has a tubular structure, with a distal end of an arc-shaped closed end 120 and a proximal end of an open end 110. At least its closed end 120 is a light-transmitting structure. Figure 7 , Figure 8 As shown. The optical guide tube 100 can be sleeved on the endoscope guide tube 300 through its open end 110, and a matching and locking snap-fit ​​structure 500 is provided between the open end 110 of the optical guide tube 100 and the distal end of the handle 200 or the proximal end of the endoscope guide tube 300, such as... Figure 4 , 5 As shown. The endoscopic catheter 300 includes an extension portion located outside the handle 200 and a fixed portion located inside the handle 200, wherein the proximal end of the extension portion is connected to or integrally formed with the distal end of the fixed portion. In this invention, the proximal end of the endoscopic catheter 300 specifically refers to the proximal end of the extension portion.

[0054] Specifically, the main body of the optical conduit 100 is a straight circular tube with a uniform cross-section, and the closed end 120 has an arc-shaped structure. The closed end 120 is a light-transmitting structure made of transparent material, allowing light emitted from the light source in the endoscope module 410 to pass smoothly through the closed end 120 to reach the observation site, and light reflected from the observation site can also pass smoothly through the closed end 120 to reach the endoscope module 410 for imaging. Using a closed end 120 made of transparent material instead of an object distance for imaging allows for clear imaging even when the endoscope tip contacts the tissue during puncture, resulting in good visualization. Furthermore, the arc-shaped closed end 120 avoids damage to brain tissue during puncture. The main body of the optical conduit 100 can be made of transparent or non-transparent material, but transparent material is preferred, making the entire optical conduit 100 a light-transmitting structure. This expands the field of view during puncture, not limiting visualization to tissues directly in front. The main body and closed end 120 of the optical conduit 100 can be integrally molded, or they can be molded separately and then connected together. The specific manufacturing process is selected based on the actual situation. Optionally, the outer surface of the optical conduit 100 is provided with scale lines along its own axis, which are used to indicate the depth of the optical conduit 100 inserted into the cranium.

[0055] To minimize incision and tissue damage, while allowing the optical conduit 100 to slide smoothly relative to the endoscope catheter 300 along the axial direction and preventing wobbling of the optical conduit 100 relative to the endoscope catheter 300 during use, the inner diameter of the optical conduit 100 in this embodiment is slightly larger than the outer diameter of the endoscope catheter 300. In this embodiment, the axial length of the optical conduit 100 is slightly larger than the axial length of the extended portion of the endoscope catheter 300, allowing the opening end 110 of the optical conduit 100 to reach near the proximal end of the endoscope catheter 300 and the distal end of the handle 200. During surgery, it can completely cover the portion of the endoscope catheter 300 inserted into the body. The portion of the endoscope catheter 300 not covered by the optical conduit 100 is generally located outside the patient's body during surgery. Thus, during puncture, the optical conduit 100 provides excellent sealing protection for the endoscope module 410 located at the distal end of the endoscope catheter 300, effectively preventing blurred vision caused by leakage during puncture due to blood or other tissue contamination of the lens.

[0056] To reduce the impact of reflected light from the light source and improve the field of view, in this embodiment, the closed end 120 of the optical guide tube 100 is a hemispherical structure. The wall thickness of the hemispherical structure is equal at all points, or the wall thickness at the center point of the hemispherical structure is less than the wall thickness at other points, and the wall thickness smoothly transitions from the center point to the edge. Setting the wall thickness at the center point of the hemispherical structure to be less than the wall thickness at other points can reduce the size of the observed target, thereby expanding the field of view. Furthermore, the smooth transition of the wall thickness from the center point to the edge does not cause any distortion in the proportion of the field of view. In this embodiment, the radius of the hemispherical structure can be set to be equal to the minimum focal length of the lens in the endoscope module 410, ensuring clear imaging even when the endoscope tip contacts the tissue.

[0057] In this embodiment, a snap-fit ​​structure 500 is provided between the opening end 110 of the optical guide tube 100 and the distal end of the handle 200. The opening end 110 of the optical guide tube 100 is locked to the distal end of the handle 200 by the snap-fit ​​structure 500, such as... Figure 4 , Figure 5 As shown, the snap-fit ​​structure 500 enables quick connection and locking between the optical guide tube 100 and the handle 200, which is convenient to operate, simple in structure, and easy to process and produce. Alternatively, the snap-fit ​​structure 500 can be positioned between the opening end 110 of the optical guide tube 100 and the proximal end of the endoscope guide tube 300, so that the opening end 110 of the optical guide tube 100 is locked to the proximal end of the endoscope guide tube 300 via the snap-fit ​​structure 500.

[0058] To enable rapid installation and disassembly of the optical guide tube 100 and the endoscope body 10, i.e., quick switching between locked connection and disassembly, the latching structure 500 in this embodiment is detachable, specifically an elastic latch. The optical guide tube 100 and the endoscope body 10 can achieve locking connection and disassembly more quickly and conveniently through the elastic latch. Specifically, the latching structure 500 in this embodiment includes a latching part 510 and a latching part 520. When the latching part 510 and the latching part 520 are engaged, the optical guide tube 100 and the endoscope body 10 are in a locked connection state. When the latching part 510 and the latching part 520 are separated, the optical guide tube 100 can be detached from the endoscope body 10.

[0059] In addition, in this embodiment, the endoscope body 10 is provided with a clamp channel kit 600, which extends through both ends of the endoscope body 10, allowing instruments to pass through the endoscope body 10 from outside the patient and into the surgical site, such as... Figure 6As shown. The inner cavity of the forceps channel kit 600 is a forceps channel 630, which passes through both ends of the endoscopic catheter 300 and the handle 200. This allows instruments such as aspiration devices, electrocoagulation devices, flushing devices, debridement devices, and catheters to be inserted from outside the body through the forceps channel 630 to the surgical site for surgical operations, thus meeting various needs in intracranial hematoma removal surgery.

[0060] To facilitate molding and assembly, the handle 200 in this embodiment includes a detachable front housing 210 and a rear housing 220. The front housing 210 and the rear housing 220 have essentially the same shape, and their edges can be detachably connected via multiple snap-fit ​​fasteners. Figure 1 As shown.

[0061] In this embodiment, the handle 200 is a pistol-shaped handle or a straight handle. The shape of the handle 200 is set according to the needs of the usage scenario and is not a limitation of the present invention. The endoscope body with a pistol-shaped handle is as follows: Figure 3 As shown, the endoscope body with a straight handle is as follows: Figure 9 As shown. Whether it is a pistol-shaped handle 200 or a straight handle 200, the outer periphery of the handle 200 can be provided with a protrusion 240 to fit the hand shape and improve the comfort of use; the handle 200 is provided with a water outlet and a cable outlet to facilitate the cable 430 and water channel inside the handle 200 to be guided out of the outside of the handle 200.

[0062] When the handle 200 is a pistol-shaped handle 200, the handle 200 includes a connecting part 250 and a gripping part 260 whose axes are set at right angles or obtuse angles. The fixing part of the endoscope catheter 300 is fixedly connected to the connecting part 250. The optical catheter 100 is connected to the proximal end of the endoscope catheter 300 or the distal end of the connecting part 250. The gripping part 260 can provide installation space for the installation and arrangement of power supplies, PCB boards 420, cables 430, etc. Figure 6 As shown.

[0063] Example 2

[0064] This embodiment is a second embodiment of a multifunctional endoscope. Similar to the first embodiment, the difference lies in that the latching structure 500 is positioned between the opening end 110 of the optical guide tube 100 and the distal end of the handle 200. Specifically, the latching part 510 is positioned at the distal end of the handle 200, and the latching part 520 is positioned on the outer periphery of the opening end 110 of the optical guide tube 100, or the latching part 510 is positioned at the opening end of the optical guide tube 100, and the latching part 520 is positioned on the outer periphery of the distal end of the handle 200. This facilitates the processing and forming of the latching structure 500 and the stable connection between the two. This embodiment uses the example of positioning the latching part 510 at the distal end of the handle 200 and the latching part 520 on the outer periphery of the opening end 110 of the optical guide tube 100 for illustration.

[0065] Specifically, the latching structure 500 includes a latching portion 520 located on the outer periphery of the opening end 110 of the optical guide tube 100 and a locking portion 510 located at the distal end of the handle 200 and extending toward the distal end of the endoscope guide tube 300. The optical guide tube 100 is fitted onto the endoscope guide tube 300 through the opening end 110 and can move along the endoscope guide tube 300 to the locking portion 510, thereby achieving a latching connection and locking between the locking portion 510 and the latching portion 520. Figure 10 , Figure 11 As shown.

[0066] The latching part 510 includes a latching end 511 and a flexible latching arm 512. The latching arm 512 is located between the latching end 511 and the distal end of the handle 200. The latching end 511 can at least partially latch onto the latching part 520 to achieve latching connection and locking. The latching end 511 includes an insertion surface 513 and a retaining surface 514 arranged sequentially from the distal end to the proximal end of the handle 200. The distance between the insertion surface 513 and the central axis of the handle 200 gradually decreases from the distal end to the proximal end. The included angle between the retaining surface 514 and the latching arm 512 can be an acute angle, a right angle, or an obtuse angle, preferably a right angle or an obtuse angle. The latching part 520 is recessed or protruding from the outer side of the opening end 110 of the optical guide tube 100. With this design, as the optical guide tube 100 moves along the endoscope guide tube 300 toward the handle 200, the guide effect of the insertion surface 513 makes the locking arm 512 more prone to deformation. The retaining surface 514 allows the locking end 511 to engage with the locking position of the locking part 520, achieving locking connection and locking. The design of the elastic locking arm 512 makes the locking part 510 a cantilever beam structure. During the axial movement of the optical guide tube 100 along the endoscope guide tube 300, the elastic locking arm 512 easily deforms or recovers its deformation, facilitating quick installation and removal between the optical guide tube 100 and the handle 200.

[0067] When the optical catheter 100 and the handle 200 are connected and locked by the snap-fit ​​structure 500, visual puncture can be achieved. When the optical catheter 100 is removed from the handle 200, any one of the following instruments, such as aspiration device, debridement device, irrigation device, electrocoagulation device, or catheter, can be inserted into the forceps channel 630 as needed, so that the visualization of surgical operations such as aspiration, debridement, irrigation, electrocoagulation, and drug administration can be achieved.

[0068] In this embodiment, the locking part 510 and the handle 200 can be fixedly connected by means of bonding, welding, etc., and the locking part 510 and the handle 200 can also be an integrally formed structure. In this embodiment, the locking part 510 can be set as a group, or two or more groups can be evenly distributed according to the needs of use. The buckle part 520 that cooperates with the locking part 510 is recessed or protrudes from the outer side of the opening end 110 of the optical guide tube 100, and the buckle end 511 can at least partially engage with the buckle part 520 to achieve buckle connection and locking.

[0069] Example 3

[0070] This embodiment is the third embodiment of a multifunctional endoscope. This embodiment is similar to the second embodiment, except that the structural design of the buckle 520 is different.

[0071] Specifically, the fastening part 520 consists of one or two axially arranged flange rings 521 protruding from the outer side of the opening end 110 of the optical guide tube 100. The snap-fit ​​end 511 engages with the edge of one flange ring 521 or within the groove 522 between two flange rings 521 to achieve snap-fit ​​connection and locking. Figure 10 As shown. When the buckle 520 is a flange ring 521, when the optical guide tube 100 is moved axially along the endoscope guide tube 300 towards the proximal end, the buckle connection and locking can be quickly achieved without aligning the buckle end 511 with the flange ring 521. This is convenient to operate and can effectively prevent the optical guide tube 100 from accidentally separating from the handle 200 due to rotation.

[0072] The latching part 520 can also be one or more protrusions circumferentially arranged or two protrusions axially arranged protruding from the outer side of the opening end 110 of the optical guide tube 100, and the latching end 511 is engaged in the edge of the protrusion or in the groove 522 between the two protrusions. In implementation, the latching end 511 needs to be aligned with the protrusion to achieve latching connection and locking.

[0073] When the latching part 520 consists of two flange rings 521 or two protrusions arranged axially, the latching end 511 is engaged in the groove 522 between the two flange rings 521 or the two protrusions. This arrangement restricts the movement of the optical guide tube 100 in both the forward and backward directions along the endoscope guide tube 300. When the latching part 520 consists of two protrusions arranged axially, the groove 522 is an open groove with openings at both ends in the circumferential direction. To prevent the optical guide tube 100 from accidentally separating from the handle 200 due to rotation during surgery, sealing blocks can be provided at both ends of the open groove. The sealing blocks can be formed separately from the protrusions or integrally formed with the protrusions and the optical guide tube 100. Furthermore, multiple grooves 522 can be arranged circumferentially along the optical guide tube 100 as needed. In use, aligning the latching end 511 with one of the grooves 522 achieves latching connection and locking.

[0074] In this embodiment, the proximal end face of the protrusion or flange ring 521 near the opening end 110 is flush with the proximal end face of the optical guide tube 100, which facilitates processing and is more aesthetically pleasing, but this is not intended to limit the present invention.

[0075] In this embodiment, the latch 520 can also be one or more positioning slots recessed into the outer side of the opening end 110 of the optical guide tube 100. The latching end 511 can at least partially fall into the positioning slot to achieve latching connection and locking. Multiple positioning slots can be arranged circumferentially along the outer side of the optical guide tube 100. In implementation, the latching end 511 needs to be aligned with one of the positioning slots, and the optical guide tube 100 is moved along the endoscope guide tube 300 until the latching end 511 falls into the positioning slot to achieve latching connection and locking. In this embodiment, guide slopes can be provided on both sides of the positioning slot to form multiple positioning slots connected end to end. In this way, when the optical guide tube 100 is rotated, the latching end 511 can automatically fall into one of the positioning slots under the guidance of the guide slopes. This design can avoid separation of the optical guide tube 100 from the handle 200 when rotating, and when installing the optical guide tube 100, it is not necessary to deliberately align the latching end 511 with one of the positioning slots.

[0076] Example 4

[0077] This embodiment is the fourth embodiment of a multifunctional endoscope. This embodiment is similar to the second embodiment, except that at least two buckles 520 are distributed axially on the outer side of the opening end 110 of the optical guide tube 100. Any one of the buckles 520 can be snapped and locked with the locking part 510.

[0078] In this embodiment, the fastening portion 520 specifically comprises a plurality of flange rings 521 protruding from the outer side of the opening end 110 of the optical guide tube 100 and distributed axially, preferably three or more flange rings 521. A groove 522 is formed between two adjacent flange rings 521 along the axial direction of the optical guide tube 100. This groove 522 is specifically configured as an annular groove. The plurality of grooves 522 are evenly distributed along the axial direction of the optical guide tube 100. The proximal end face of the flange ring 521 closest to the opening end 110 of the optical guide tube 100 is flush with the proximal end face of the optical guide tube 100. Figure 11 As shown, it is easier to process and more aesthetically pleasing, but this is not intended to limit the invention.

[0079] During use, there is no need to deliberately align the snap-fit ​​end 511 with the flange ring 521. When the optical guide tube 100 moves axially proximally along the endoscope guide tube 300 until the snap-fit ​​end 511 is engaged with the edge of one of the flange rings 521 or falls into one of the slots 522, the snap-fit ​​connection and locking between the optical guide tube 100 and the handle 200 can be achieved. After the snap-fit ​​connection and locking are achieved, the optical guide tube 100 will not separate from the handle 200 no matter how it is rotated. In addition, when performing visual puncture, the operator can change the axial position of the optical guide tube 100 relative to the endoscope guide tube 300 as needed, thereby adjusting the distance between the distal end of the optical guide tube 100 and the endoscope module 410, so as to adjust the size and clarity of the field of view. It is also applicable to clear imaging with lenses of different focal lengths, making it more widely applicable and giving the operator greater operational flexibility.

[0080] In addition, this embodiment can set the distance between adjacent flange rings 521 so that the width of each slot 522 is basically equal to the width of the latch end 511. The latch end 511 falls into the slot 522, which restricts the movement of the optical catheter 100 in both the front and rear directions along the endoscope catheter 300. Moreover, the operator can sense the distance the optical catheter 100 moves during the movement of the optical catheter 100, realizing graded adjustment of the distance between the distal end of the optical catheter 100 and the endoscope module 410, thereby improving the stability and accuracy of the puncture operation.

[0081] To facilitate the movement of the latching part 510 relative to the buckle part 520, in this embodiment, the distal end face of the latching end 511 is an insertion surface 513 with a bevel or arc, and the proximal end face is a retaining surface 514 with a bevel or arc. The insertion surface 513 and the retaining surface 514 are smoothly connected by a connecting surface 515. Along the direction from the distal end to the proximal end of the handle 200, the distance between the insertion surface 513 and the central axis of the handle 200 gradually decreases, and the distance between the retaining surface 514 and the central axis of the handle 200 gradually increases, that is, the included angle between the retaining surface 514 and the latching arm 512 is an obtuse angle.

[0082] In this embodiment, when the end face of the proximal end of the optical guide tube 100 is closest to the end face of the distal end of the handle 200, that is, when the latch end 511 is engaged in the edge of the flange ring 521 or the slot 522 closest to the opening end 110, the distance between the distal end of the optical guide tube 100 and the endoscope module 410 is not less than the minimum focal length of the lens in the endoscope module 410. In this way, no matter how the optical guide tube 100 is moved along the axial direction of the endoscope guide tube 300, the object distance will not be less than the minimum focal length of the lens, and clear imaging can be achieved.

[0083] Example 5

[0084] This embodiment is the fifth embodiment of a multifunctional endoscope. This embodiment is similar to any one of the embodiments one to four, except that the specific configuration of the clamp channel kit 600 is different.

[0085] In this embodiment, the forceps channel kit 600 includes a tapered guide 610 and a forceps tube 620. The tapered guide 610 is installed at the proximal end of the handle 200, with its wider end facing the proximal end of the handle 200. The forceps tube 620 is a straight tubular tube disposed within the endoscope catheter 300, with its distal end located at the distal end of the endoscope catheter 300. The proximal end of the forceps tube 620 is connected to the tapered guide 610 and communicates with the outside through the tapered guide 610. The inner cavity of the forceps tube 620 communicates with the inner cavity of the tapered guide 610 to form a forceps channel 630 penetrating both ends of the endoscope body. Figure 6 , Figure 12 As shown, the conical guide 610 guides the insertion of instruments such as suction devices, electrocoagulation devices, flushing devices, debridement devices, and catheters into the forceps channel 620, eliminating the need for precise alignment during insertion and improving operational convenience.

[0086] The conical guide 610 includes a tubular portion 611, a conical portion 612, and a mounting frustum portion 613 arranged sequentially from distal to proximal. The tubular portion 611 is connected to the proximal end of the clamp tube 620. The conical portion 612 is located at the proximal end of the handle 200 and communicates with the outside. A mounting platform 280 is provided inside the handle 200, and a mounting groove is provided on the mounting platform 280. The mounting frustum portion 613 cooperates with the mounting groove to achieve the installation of the conical guide 610. Figure 12 , Figure 13 As shown. In this embodiment, a through hole 270 can be opened at the proximal end of the handle 200 for the installation of the conical guide 610, so that the conical guide 610 can be installed inside the handle 200 and the integrity of the outer surface of the handle 200 can be maintained. However, this is not a limitation of the present invention, and the conical guide 610 can also be located outside the handle 200.

[0087] Furthermore, the clamp tube 620 is a slender tubular structure, with its central axis offset from that of the endoscope catheter 300. This allows for the simultaneous installation of the endoscope module 410 and the clamp tube 620 within the lumen of the endoscope catheter 300, resulting in a compact endoscope. To maintain the stability of the tubular structure during installation, the clamp tube 620 employs at least a two-point fixing connection. In this embodiment, the existing installation structure of a multifunctional endoscope is used to install the clamp tube 620. One fixing point is located at the distal end of the endoscope catheter 300, and the other fixing point is located at the proximal end of the endoscope catheter 300 within the fixed portion of the handle 200.

[0088] Example 6

[0089] This embodiment is the sixth embodiment of a multifunctional endoscope. This embodiment is similar to any of embodiments one through five, except that it also includes a water system kit 700 that can be connected to an external power water source, enabling the multifunctional endoscope to have a flushing function. The water system kit 700 can be inserted into the forceps channel 630 or can be installed independently of the forceps channel 630 within the endoscope catheter 300. When the water system kit 700 is installed independently of the forceps channel 630, it can be used in conjunction with any of the following instruments inserted into the forceps tube 620: a suction device, an electrocoagulation device, a debridement device, or a catheter, allowing for simultaneous flushing and other surgical procedures.

[0090] In this embodiment, the water system kit 700 is independent of the clamp channel 630. The water system kit 700 includes an insertion end tube 710 disposed within the endoscope catheter 300. The distal end of the insertion end tube 710 is located at the distal end of the endoscope catheter 300, and the proximal end of the insertion end tube 710 is located inside or protrudes from the proximal end of the handle 200, thereby allowing for indirect or direct connection to an external power water source. The water system kit 700 also includes a water pipe connecting tube 720, a switch valve 730, and a Luer connector 740. The proximal end of the insertion end tube 710 communicates with the water pipe connecting tube 720, which extends beyond the handle 200. The water pipe connecting tube 720 has a switch valve 730 on its outer portion outside the handle 200 and a Luer connector 740 at its end. Figure 14 As shown. The Luer connector 740 facilitates connection to an external power water source, the switch valve 730 is used to control the on / off state of the water circuit and regulate the flow rate, and the water pipe connection pipe 720 is connected to the insertion end pipe 710 to allow external power water to flow into the insertion end pipe 710 to achieve the flushing function.

[0091] When there are two insertion tubes 710, the distal ends of both insertion tubes 710 are fixed to the distal end of the endoscope catheter 300, and the two insertion tubes 710 are evenly distributed on the outer periphery of the forceps channel 620. The overall structural design does not affect the inner and outer diameter dimensions of the endoscope catheter 300, and ensures that the cross-sectional dimensions of the forceps channel 630 are not too small. The proximal ends of the two insertion tubes 710 are joined and connected to the water pipe connection tube 720 via a connector 750. The connector 750 is used to achieve communication between the two insertion tubes 710 and the water pipe connection tube 720. The two insertion tubes 710 are symmetrically arranged about the central axis of the endoscope catheter 300, which can achieve uniform and large-area flushing.

[0092] When the connector 750 is a deformable mounting sleeve and is fitted around the proximal end of the endoscope catheter 300 located in the fixed part of the handle 200, it can not only fix the proximal end of the insertion tube 710, but also cooperate with the mounting structure inside the handle 200 to realize the connection between the endoscope catheter 300 and the handle 200; when a winding hole is opened on the connector 750, the cable 430 can be stably fixed between the inner wall of the connector 750 and the outer wall of the clamp tube 620 when it passes through the winding hole.

[0093] Example 7

[0094] This embodiment is the seventh embodiment of a multifunctional endoscope. This embodiment is similar to any one of the embodiments one to six, except that the visualization module 400 and the endoscope catheter 300 are specifically configured.

[0095] In this embodiment, the visualization module 400 includes an endoscope module 410, a PCB board 420, a cable 430, and a USB interface 440. The endoscope module 410 is connected to the PCB board 420, and the USB interface 440 is connected to the PCB board 420 via the cable 430. The PCB board 420 is located inside the handle 200, and the USB interface 440 is located outside the handle 200. The endoscope module 410 is an integral unit comprising a lens, a chip, and a light source, and is located at the distal end of the endoscope catheter 300. Figure 15 As shown.

[0096] The light source is set around the lens, preferably two, to provide light for the lens's imaging. The light source can be an LED or other light source. The lens has a minimum depth of field of 2mm, which can clearly observe the scene 2-100mm in front of the insertion end. The image obtained by the lens is converted into photoelectric information by the chip and transmitted by the chip to the PCB board 420 via the cable 430. When the USB interface 440 is connected to the display screen, the image obtained by the lens will be displayed on the display screen. In addition to signal transmission, the cable 430 can also be used to provide the current required for normal operation of the lens, chip and light source. By placing the endoscope module 410, which integrates the lens, chip, and light source, at the distal end of the endoscope catheter 300, and connecting the endoscope module 410 to the PCB board 420 located inside the handle 200 via a cable 430 through the endoscope catheter 300, without setting a separate visualization cavity, the outer diameter of the endoscope catheter 300 can be set to be smaller than that of conventional endoscope catheters, approximately 6.5 mm. The small size of the endoscope catheter can reduce skull damage, and intracranial hematoma surgery can be completed through a small surgical incision. At the same time, the inner diameter of the forceps channel 620 can be increased to 3.0 mm to 4.0 mm, more preferably to 3.5 mm to 4.0 mm. The cross-sectional size of the forceps channel 630 with this inner diameter is not too small, which facilitates the insertion of instruments such as aspiration kits, debridement kits, irrigation kits, electrocoagulation kits, and catheters as needed for surgery.

[0097] Specifically, the endoscopic catheter 300 includes a hollow steel tube and an installation module 310 disposed at the distal end of the steel tube. An installation step 311 is provided on the outer periphery of the installation module 310. The installation module 310 is inserted into the endoscopic catheter 300 and moves until the installation step 311 abuts against the distal end of the endoscopic catheter 300. In this embodiment, the external dimensions of the installation module 310 can be set so that after the installation module 310 is installed at the distal end of the endoscopic catheter 300, the outer peripheral surface of the installation module 310 and the outer peripheral surface of the endoscopic catheter 300 form a smooth cylindrical surface. Figure 8 As shown.

[0098] The mounting module 310 has a first mounting hole 312 for mounting the endoscope module 410 and a second mounting hole 313 for mounting the distal end of the clamp channel kit 600. The central axis of the first mounting hole 312 and the central axis of the second mounting hole 313 are both offset from the central axis of the mounting module 310. Figure 16As shown. This configuration fully utilizes the installation space of the mounting module 310 to fix the distal ends of the endoscope module 410 and the forceps channel 620 to the distal end of the endoscope catheter 300. It also avoids interference between the endoscope module 410 and instruments such as the suction device, electrocoagulation device, flushing device, debridement device, and catheters passing through the forceps channel kit 600, allowing surgical operations such as suction, electrocoagulation, flushing, debridement, and drug administration to be performed under good visualization. Furthermore, when the flushing device is set independently of the forceps channel 630, i.e., the water circuit kit 700 described above, the mounting module 310 also has two third mounting holes 314 for fixing the distal ends of the two insertion tubes 710 respectively. The two third mounting holes 314 are symmetrically arranged about the central axis of the mounting module 310, further preventing interference between the endoscope module 410 and the water circuit kit 700 and other instruments passing through the forceps channel kit 600.

[0099] Example 8

[0100] This embodiment is an embodiment of an endoscope system, including a brain retractor, surgical instruments, and a multifunctional endoscope as in any of the embodiments 1 to 7. The brain retractor has a through hole through which an optical conduit 100 can pass. The surgical instruments are one or more of a suction device, an electrocoagulation device, a flushing device, or a debridement device. The tubular part 611 of the surgical instruments can pass through the forceps channel kit 600 and extend into the surgical site to perform surgical operations.

[0101] In this embodiment, an opening is first made in the patient's skull according to the determined surgical location. The optical catheter 100 is fitted onto the endoscopic catheter 300 through the opening end 110 and connected and locked to the endoscope body 10 through the snap-fit ​​structure 500. Then, the endoscopic catheter 300 is inserted into the inner hole of the brain retractor plate, with its distal end extending out of the brain retractor plate. The optical catheter 100 is used to puncture the brain at the opening location. The tissue of the distal attachment of the optical catheter 100 is observed through the visualization module 400 to locate and confirm the size of the target (such as a hematoma). After reaching the lesion site, the brain retractor plate is lowered. The plate moves forward along the optical conduit 100 to its distal end, completing the dilation or traction of the surrounding brain tissue. When the multifunctional endoscope is used for other visualization operations after puncture, the optical conduit 100, which is fitted over the endoscope conduit 300, is removed, and the endoscope conduit 300 is moved to the surgical position through the inner hole of the brain depressor. As needed, any one of the following instruments, such as aspiration device, electrocoagulation device, flushing device, debridement device, or conduit, can be inserted into the forceps channel kit 600, so that surgical operations such as aspiration, electrocoagulation, flushing, debridement, and drug administration can be performed under visualization.

[0102] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0103] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A multifunctional endoscope, characterized in that, Includes the endoscope body (10) and optical conduit (100): The endoscope body (10) includes a handle (200) and an endoscope catheter (300), the endoscope catheter (300) being fixedly connected to the handle (200). The endoscope body (10) is provided with a visualization module (400) and a forceps channel kit (600). The visualization module (400) includes an endoscope module (410) disposed at the distal end of the endoscope catheter (300). The forceps channel kit (600) passes through both ends of the endoscope body (10) and is used to allow instruments to pass through the endoscope body (10) from outside the patient and extend into the surgical site. The optical conduit (100) is a tubular structure. The distal end of the optical conduit (100) is an arc-shaped closed end (120), and the proximal end is an open end (110). At least the closed end (120) of the optical conduit (100) is a light-transmitting structure. The optical conduit (100) can be sleeved on the endoscope conduit (300) through the open end (110). A matching and locking buckle structure (500) is provided between the open end (110) of the optical conduit (100) and the distal end of the handle (200) or the proximal end of the endoscope conduit (300). The buckle structure (500) is an elastic buckle. The optical conduit (100) and the endoscope body (10) can be locked and disassembled through the elastic buckle. The latching structure (500) includes a latching part (520) located on the outer periphery of the opening end (110) of the optical guide tube (100) and a locking part (510) located at the distal end of the handle (200) and extending toward the distal end of the endoscope guide tube (300). Multiple latching parts (520) are provided in the axial direction of the optical guide tube (100). The optical guide tube (100) can move along the endoscope guide tube (300) to the locking part (510) so that the locking part (510) and the latching part (520) can be latched and locked.

2. The multifunctional endoscope according to claim 1, characterized in that, The buckle (520) is recessed or protrudes from the outer side of the opening end (110) of the optical guide tube (100). The locking part (510) includes a locking end (511) and a flexible locking arm (512). The locking arm (512) is located between the locking end (511) and the distal end of the handle (200). The locking end (511) can at least partially lock onto the buckle (520) to achieve a locking connection and locking.

3. The multifunctional endoscope according to claim 2, characterized in that, The latch end (511) includes an insertion surface (513) and a retaining surface (514) arranged sequentially along the direction from the distal end to the proximal end of the handle (200), and the distance between the insertion surface (513) and the central axis of the handle (200) gradually decreases from the distal end to the proximal end.

4. The multifunctional endoscope according to claim 2, characterized in that, The buckle (520) consists of two axially arranged flange rings (521) protruding from the outer side of the opening end (110) of the optical guide tube (100), and the buckle end (511) is engaged in the edge of the flange ring (521) or in the groove (522) between the two flange rings (521).

5. The multifunctional endoscope according to claim 2, characterized in that, The buckle (520) consists of two protrusions that protrude from the outer side of the opening end (110) of the optical guide tube (100) and are arranged axially. The buckle end (511) is engaged in the edge of the protrusion or in the groove (522) between the two protrusions.

6. The multifunctional endoscope according to claim 2, characterized in that, The outer side of the opening end (110) of the optical guide tube (100) has at least two fasteners (520) distributed along the axial direction, and any one of the fasteners (520) can be snapped and locked with the locking part (510).

7. The multifunctional endoscope according to claim 1, characterized in that, The closed end (120) is a hemispherical structure with equal wall thickness at all points, or the wall thickness at the center point of the hemispherical structure is less than the wall thickness at other points of the hemispherical structure.

8. The multifunctional endoscope according to claim 1, characterized in that, The clamp channel kit (600) includes a conical guide (610) and a clamp channel tube (620). The conical guide (610) is installed at the proximal end of the handle (200), with the wide end of the conical guide (610) facing the proximal end of the handle (200). The clamp channel tube (620) is a straight tubular tube disposed in the endoscope catheter (300). The distal end of the clamp channel tube (620) is disposed at the distal end of the endoscope catheter (300). The proximal end of the clamp channel tube (620) is connected to the conical guide (610) and communicates with the outside through the conical guide (610). The inner cavity of the clamp channel tube (620) communicates with the inner cavity of the conical guide (610) to form a clamp channel (630) that runs through both ends of the endoscope body (10).

9. The multifunctional endoscope according to claim 1, characterized in that, The endoscope body (10) also includes a water circuit kit (700) that can be connected to an external power water source. The water circuit kit (700) includes an insertion end tube (710) disposed in the endoscope catheter (300). The distal end of the insertion end tube (710) is disposed at the distal end of the endoscope catheter (300), and the proximal end of the insertion end tube (710) is disposed inside the handle (200) or protrudes from the proximal end of the handle (200), thereby allowing it to be connected to an external power water source indirectly or directly.

10. The multifunctional endoscope according to claim 9, characterized in that, The water system kit (700) has two insertion end tubes (710), the proximal ends of which are connected and merged to the water pipe connecting tube (720) via a connector (750). The water pipe connecting tube (720) extends outside the handle (200), and the water pipe connecting tube (720) is provided with a switch valve (730) on the pipe outside the handle (200) and a Luer connector (740) at its end.

11. The multifunctional endoscope according to claim 1, characterized in that, The visualization module (400) also includes a PCB board (420), a cable (430), and a USB interface (440). The endoscope module (410) is connected to the PCB board (420) and the USB interface (440) is connected to the PCB board (420) via the cable (430). The PCB board (420) is located inside the handle (200), and the USB interface (440) is located outside the handle (200). The endoscope module (410) includes a lens, a chip, and a light source, and is integrated at the distal end of the endoscope catheter (300).

12. The multifunctional endoscope according to claim 1, characterized in that, The endoscopic catheter (300) includes a hollow steel tube and an installation module (310) disposed at the distal end of the steel tube. The installation module (310) has a first installation hole (312) for installing the endoscope module (410) and a second installation hole (313) for installing the distal end of the forceps channel kit (600). The central axis of the first installation hole (312) and the central axis of the second installation hole (313) are both offset from the central axis of the installation module (310).

13. A multifunctional endoscope system, characterized in that, The device includes a brain retractor, surgical instruments, and a multifunctional endoscope as described in any one of claims 1-12. The brain retractor has a through hole through which the optical conduit (100) can pass. The surgical instruments are one or more of a suction device, an electrocoagulation device, a flushing device, or a debridement device. The tubular portion of the surgical instruments can pass through the forceps channel kit (600) and extend into the surgical site to perform surgical operations.

Images