An enucleation surgical endoscope device

Abstract

The present application relates to the technical field of medical apparatus, and discloses a kind of enucleation operation endoscope device, including endoscope component, optical fiber guider component and pulverizer blade component, endoscope component includes endoscope, inner tube component and instrument channel, the lens end of endoscope is inserted into inner tube component to and extend to the front end of inner tube component, instrument channel is connected seat, mounting seat and inner tube component along front and back direction through;Optical fiber guider component and pulverizer blade component are alternatively installed in connecting seat, and the front end of optical fiber guider component or pulverizer blade component is outside the front end of outer tube through instrument channel.The above-mentioned enucleation operation endoscope device integrates enucleation and pulverization function on the same endoscope, with the advantages of high surgical efficiency, simple post-processing and low surgical cost.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an endoscope device for excision surgery. Background Technology

[0002] Laser enucleation is an effective treatment for benign prostatic hyperplasia (BPH). During this procedure, the enucleator and its accompanying handpieces are typically used to dissect the enlarged prostatic tissue. After dissection, the enucleator is switched to a shredder with its accompanying blade to break up the tissue and remove it from the body. However, this procedure requires switching between two endoscopes, the enucleator and the shredder, making the process complex and increasing the cost of equipment and post-operative cleaning and disinfection. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides an endoscope device for excision surgery, which has the advantages of simplifying the surgical procedure, simplifying post-operative processing, and reducing costs.

[0004] The specific technical solution of the present invention is as follows: an endoscopic device for excision surgery, comprising an endoscope assembly, an optical fiber guide assembly, and a shredder assembly. The endoscope assembly includes an endoscope, an outer tube, a fluid inlet / outlet assembly, an inner tube assembly, a mounting base, a connecting base, and an instrument channel. The outer tube is fixed to the front end of the fluid inlet / outlet assembly, the mounting base is rotatably connected to the rear end of the fluid inlet / outlet assembly, and the connecting base is slidably connected to the mounting base in the front-back direction. The rear end of the inner tube assembly is fixed to the mounting base, and the front end of the inner tube assembly passes through the mounting base and the fluid inlet / outlet assembly in sequence and extends out of the front end of the outer tube. The gap between the inner tube assembly and the outer tube forms a liquid channel communicating with the fluid inlet / outlet assembly. The lens end of the endoscope extends into the inner tube assembly and extends to the front end of the inner tube assembly. The instrument channel is connected to the connecting base and passes through the connecting base, the mounting base, and the inner tube assembly in the front-back direction.

[0005] The fiber optic guide assembly and the shredder assembly are optionally installed on the connector, with the front end of either the fiber optic guide assembly or the shredder assembly passing through the instrument channel to the front end of the outer tube.

[0006] In the aforementioned endoscopic device, the endoscope assembly can be selectively connected to either the fiber optic guide assembly or the shredder assembly. The front end of the inner tube assembly extends beyond the front end of the outer tube, and the endoscope lens extends to the front end of the inner tube assembly. Simultaneously, the inner tube assembly can rotate relative to the inlet / outlet fluid assembly and the outer tube with the mounting base to change the observation angle for full-process observation. The instrument channel is used for the insertion and connection of the fiber optic guide assembly or the shredder assembly. During the operation, the fiber optic guide assembly or the shredder assembly can be selected for connection according to the operational requirements. During the operation, the instrument channel slides back and forth with the connecting base to perform excision and shredding operations. By integrating the excision and shredding functions onto the same endoscope, only one endoscope is needed for the entire operation, reducing surgical instruments, lowering costs, and reducing postoperative instrument processing. The inlet / outlet fluid assembly allows for fluid inlet or aspiration through the fluid channel, ensuring a clear surgical field.

[0007] Optionally, the connecting seat includes a connecting seat body fixed in the front-back direction and an operating wristband. The mounting seat is fixed with a pin, and the operating wristband is slidably connected to the pin in the front-back direction. A spring is provided between the operating wristband and the mounting seat to keep the operating wristband in a position away from the mounting seat.

[0008] In the above technical solution, the operating wristband can drive the connecting base body to slide relative to the mounting base, making operation convenient and labor-saving. A spring is provided between the operating wristband and the mounting base to realize the self-resetting of the connecting base, which facilitates operation.

[0009] Optionally, the endoscope includes an elastic sleeve, a lens, and a cable. The inner tube assembly includes a tip extending from the front end of the outer tube and an inner tube body extending rearward from the tip. The inner tube body is sealed to the tip. The lens is located inside the tip. A protective glass is provided at the position corresponding to the lens on the tip. The elastic sleeve is located inside the inner tube body and is sealed to the outside of the cable. The front end of the elastic sleeve is sealed to the tip, and the rear end of the elastic sleeve extends to the mounting base.

[0010] In the above technical solution, the protective glass, the tip, and the elastic sleeve form an isolation barrier that completely wraps the lens and the cable inserted into the body, preventing contaminants such as the patient's tissue and body fluid from adhering to the surface of the lens and cable, and reducing the difficulty of postoperative instrument handling.

[0011] Optionally, the protective glass is a colored optical glass capable of blocking light of a specific wavelength, which corresponds to the laser wavelength emitted by the fiber optic guide assembly.

[0012] In the above technical solution, the fiber optic guide assembly needs to emit a laser of a specific wavelength toward the surgical area. If the laser enters the lens directly or after being reflected by tissue, it will affect the observation effect and damage the lens. Colored optical glass that can block light of a specific wavelength is used as protective glass to block the laser and avoid interference of laser light waves with the lens.

[0013] Optionally, the tip is provided with an illumination element, which is positioned close to the protective glass.

[0014] In the above technical solution, an illumination device is set up to provide illumination to the lens, avoiding dim imaging and ensuring that doctors can clearly identify all tissue details in the field of vision.

[0015] Optionally, the inner tube assembly includes a sealing valve and a duckbill valve. The rear end of the inner tube body extends into the mounting base, and the sealing valve and the duckbill valve are connected to the rear end of the inner tube body. The front end of the inner tube body extends to the front end of the outer tube. The gap between the inner tube body and the elastic sleeve forms a partial instrument channel, and the inlet / outlet fluid assembly is connected to the fluid path of this partial instrument channel.

[0016] In the above technical solution, the instrument channel can both insert instruments and serve as a liquid channel to participate in the flushing fluid circulation. The rear end of the inner tube body is equipped with a sealing valve and a duckbill valve, which allows the instruments to enter the instrument channel smoothly. At the same time, the sealing valve and duckbill valve will seal the rear end of the inner tube body due to the continuous pressure generated by the flushing fluid circulation in the instrument channel, which can prevent the flushing fluid in the channel from overflowing from the rear end of the inner tube body, thus forming an automatic sealing and waterproof function for the instruments.

[0017] Optionally, a movable connector is provided between the mounting base and the inlet / outlet liquid assembly. The movable connector has a barbed step at one end near the inlet / outlet liquid assembly and a locking groove at the other end near the mounting base. The inlet / outlet liquid assembly has a connecting groove at one end near the movable connector. The barbed step and the connecting groove are engaged and fitted with a clearance to achieve a rotatable connection between the movable connector and the inlet / outlet liquid assembly. The mounting base has a locking block at one end near the movable connector. The locking block is embedded in the locking groove to lock the mounting base and the movable connector.

[0018] In the above technical solution, the front end of the movable connector is rotatably connected to the inlet / outlet liquid assembly, and the rear end of the movable connector is locked to the mounting base by a locking assembly, so as to enable the mounting base to drive the inner tube body to rotate relative to the inlet / outlet liquid assembly and the outer tube. The movable connector has a simple structure and is easy to connect.

[0019] Optionally, the rear end of the connector is provided with a locking groove for locking the fiber optic guide assembly or the shredder assembly.

[0020] In the above technical solution, when the locking fiber guide assembly or the shredder assembly passes through the instrument channel to the front end of the outer tube, the locking groove locks it to the connecting groove, keeping the two connected and preventing the fiber guide assembly or the shredder assembly from loosening.

[0021] Optionally, the fiber optic guide assembly includes a fiber optic lock, a fiber optic guide, a latch, and a conduit connected in sequence. The conduit passes through the instrument channel to the front end of the outer tube. The latch is locked to the connector. The fiber optic lock is used to lock the fiber optic cable, and the fiber optic guide is used to guide the fiber optic cable.

[0022] In the above technical solution, when connecting the fiber optic guide assembly and the endoscope assembly, the catheter is first passed through the instrument channel to the front end of the outer tube and locked with the connector by the latch. The fiber optic cable is then inserted from the end of the fiber optic locker. The fiber optic guide is used to guide the fiber optic cable into the catheter. After the fiber optic cable head reaches the required position, the fiber optic locker is used to lock the fiber optic cable.

[0023] Optionally, the mounting base includes a mounting base body connected to the inner tube assembly and a first handle extending radially from the mounting base body, the first handle having a cable channel and being connected to a plug.

[0024] In the above technical solution, a first handle is provided for the operator to hold, and the cable of the inner tube assembly can pass through the cable channel of the first handle from inside the mounting body and finally converge to the plug, so as to achieve orderly cable output and avoid external interference with surgical operation.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] (1) By integrating the excision and pulverization functions into the same endoscope, the present invention requires only one endoscope throughout the entire operation, reducing surgical instruments, lowering costs and reducing postoperative instrument processing work.

[0027] (2) The fiber optic guide assembly and the shredder assembly are connected and fixed to the endoscope assembly by plugging and locking, which is simple to install;

[0028] (3) The present invention controls the extension length of the instrument by controlling the sliding of the connecting seat relative to the mounting seat, and controls the viewing angle of the lens by controlling the mounting seat relative to the liquid inlet and outlet components, making it easy to operate. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a partial cross-sectional view of the fiber optic guide assembly and endoscope assembly of the present invention in a combined state.

[0031] Figure 3 This is a partial cross-sectional view of the endoscope assembly of the present invention;

[0032] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0033] Figure 5 This is a cross-sectional view of the front end of the endoscope assembly of the present invention;

[0034] Figure 6 This is a front view of the endoscope assembly of the present invention;

[0035] Figure 7 This is a partial structural schematic diagram of the endoscope assembly of the present invention;

[0036] Figure 8 This is a cross-sectional view of the liquid inlet / outlet assembly and the movable connector of the present invention in the connected state;

[0037] Figure 9 This is a schematic diagram of the structure of the movable connector of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the fiber optic guide assembly of the present invention;

[0039] Figure 11 This is a schematic diagram of the connection structure between the optical fiber guide assembly and the connector of the present invention;

[0040] Figure 12 This is a schematic diagram of the structure of the present invention in the combined state of the shredder assembly and the endoscope assembly.

[0041] In the diagram: 1. Crusher assembly; 2. Fiber optic guide assembly; 21. Fiber optic lock; 22. Fiber optic guide; 23. Lock; 24. Guide tube; 25. Locking pin; 3. Outer tube; 31. Return hole; 4. Liquid inlet / outlet assembly; 41. Liquid inlet end; 42. Liquid outlet end; 43. Connecting groove; 44. Seat; 45. Rotating surface; 5. Mounting base; 51. Mounting base body; 52. First handle; 53. Pin; 54. Spring; 6. Connecting base; 61. Connecting seat body; 62. Operating hand ring; 63. Connecting pin; 64. Locking groove; 7. Movable connecting piece; 71. Barbed step; 72. Locking groove; 73. Second handle; 74. Deformation part; 8. Instrument channel; 81. Instrument tube; 9. Lens; 91. Elastic sleeve; 92. Illumination element; 100. Inner tube body; 101. Tip; 102. Connecting tube; 103. Sealing valve; 104. Duckbill valve; 105. Protective glass. Detailed Implementation

[0042] The present invention will now be described through specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Variations and advantages that can be conceived by those skilled in the art without departing from the spirit and scope of the inventive concept are included in the present invention, and the scope of protection of the present invention is defined by the appended claims and any equivalents thereof.

[0043] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Unless otherwise specified, the raw materials and equipment used in this invention are conventional in the art and can be obtained through conventional commercial means; unless otherwise specified, the methods used in this invention are conventional methods in the art.

[0044] In the following embodiments, "front end" refers to the end facing the inside of the human body during surgery; "rear end" refers to the end away from the inside of the human body during surgery; the front-back direction is the spatial direction from "rear end" to "front end".

[0045] Example 1: Refer to Figures 1 to 12As shown, the present invention provides an endoscope device for excision surgery, including an endoscope assembly for observing the surgical environment, an optical fiber guide assembly 2 for transmitting laser light to cut target tissue, and a shredder assembly 1 for shredding target tissue. The endoscope assembly includes an endoscope, an outer tube 3, a fluid inlet / outlet assembly 4, an inner tube assembly, a mounting base 5, a connecting base 6, and an instrument channel 8. The outer tube 3 is fixed to the front end of the fluid inlet / outlet assembly 4 and communicates with the fluid inlet / outlet assembly 4. The mounting base 5 is rotatably connected to the rear end of the fluid inlet / outlet assembly 4. The connecting base 6 is slidably connected to the rear end of the mounting base 5 in the front-back direction. The rear end of the inner tube assembly is fixed to the mounting base 5. The front end of the inner tube assembly passes through the mounting base 5 and the fluid inlet / outlet assembly 4 in sequence and extends out of the front end of the outer tube 3. The inner tube assembly can rotate relative to the outer tube 3. The gap between the inner tube assembly and the outer tube 3 forms a fluid channel communicating with the fluid inlet / outlet assembly 4. The end of the endoscope lens 9 extends into the inner tube assembly and extends to the front end of the inner tube assembly. The instrument channel 8 is connected to the connecting base 6 and passes through the connecting base 6, the mounting base 5, and the inner tube assembly in the front-back direction.

[0046] The fiber optic guide assembly 2 and the shredder assembly 1 are optionally installed on the connector 6, with the front end of either the fiber optic guide assembly 2 or the shredder assembly 1 passing through the instrument channel 8 to the front end of the outer tube 3.

[0047] In the aforementioned endoscopic device, the mounting base 5 is rotatably connected to the rear end of the inlet / outlet fluid assembly 4. The mounting base 5 can rotate relative to the inlet / outlet fluid assembly 4 around the device axis, thereby driving the inner tube assembly to rotate around the outer tube 3, providing angle adjustment space for surgical operations. The gap between the inner tube assembly and the outer tube 3 forms a fluid channel communicating with the inlet / outlet fluid assembly 4, through which irrigation fluid can be injected into the surgical area or waste fluid can be discharged. The connecting base 6 is slidably connected to the mounting base 5 in the front-to-back direction. The instrument channel 8 is connected to the connecting base 6. The instrument channel 8 is used for the insertion and operation of the fiber optic guide assembly 2 or the shredder assembly 1. The extension length of the instrument tip inserted into the instrument channel 8 can be adjusted by pushing the connecting base 6 to adapt to different surgical scenarios. The endoscope lens 9 extends into the inner tube assembly along the internal channel and extends to the front end of the inner tube assembly. The front end of the inner tube assembly adopts a transparent structure and extends beyond the front end of the outer tube 3, ensuring clear imaging of the surgical area.

[0048] The fiber optic guide assembly 2 and the shredder assembly 1 are installed in a selective configuration. Depending on the surgical procedure, one assembly is inserted forward from the rear end of the connector 6. Its front functional components, including the fiber optic tip or the shredder head, can pass through the instrument channel 8 and extend to the outside of the outer tube 3, directly acting on the surgical area to achieve laser ablation or fragmentation of the prostatic hyperplasia tissue. During the procedure, the fiber optic guide assembly 2 is first connected to the endoscope assembly. After the prostatic hyperplasia tissue ablation is completed, the fiber optic guide assembly 2 is removed, and the shredder assembly 1 is connected to the endoscope assembly to shred and remove the ablated prostatic hyperplasia tissue.

[0049] In the endoscopic device of the present invention, the endoscope assembly can be selectively connected to the fiber optic guide assembly 2 and the shredder assembly 1. The front end of the inner tube assembly extends beyond the front end of the outer tube 3, and the lens 9 of the endoscope extends to the front end of the inner tube assembly. At the same time, the inner tube assembly can rotate with the mounting base 5 relative to the inlet / outlet fluid assembly 4 and the outer tube 3 to change the observation angle for full-process observation. The instrument channel 8 is used for the insertion and connection of the fiber optic guide assembly 2 or the shredder assembly 1. During the operation, the fiber optic guide assembly 2 or the shredder assembly 1 can be selected to be connected according to the operational requirements. During the operation, the instrument channel 8 slides back and forth with the connecting base 6 to perform the excision and shredding operations. By integrating the excision and shredding functions on the same endoscope, only one endoscope is needed for the entire operation, reducing surgical instruments, lowering costs, and reducing postoperative instrument processing work.

[0050] In a preferred embodiment of the present invention, such as Figure 4 As shown, the connecting seat 6 includes a connecting seat body 61 fixed in the front-to-back direction and an operating wristband 62. The operating wristband 62 is connected to the connecting seat body 61 via a connecting pin 63. The mounting seat 5 is fixed with a pin 53. The operating wristband 62 is slidably connected to the pin 53 in the front-to-back direction. A spring 54 is provided between the operating wristband 62 and the mounting seat 5. One end of the pin 53 is fixed to the mounting seat 5, and the other end is engaged with the operating wristband 62. The spring 54 is sleeved on the outside of the pin 53, and one end of the spring 54 abuts against the operating wristband 62 to provide a preload force to the operating wristband 62 away from the mounting seat 5, so that the operating wristband 62 is kept in a position away from the mounting seat 5. The operating wristband 62 can drive the connecting seat body 61 to slide relative to the mounting seat 5, making operation convenient and effortless. The spring 54 between the operating wristband 62 and the mounting seat 5 enables the connecting seat 6 to self-reset, facilitating operation.

[0051] like Figure 3 and Figure 5As shown, the endoscope includes a flexible sleeve 91, a lens 9, and a cable connected to the lens 9. The inner tube assembly includes a tip 101 extending from the front end of the outer tube 3 and an inner tube body 100 extending rearward from the tip 101. The inner tube body 100 is sealed to the tip 101. The lens 9 is disposed inside the tip 101. A protective glass 105 is provided at the position corresponding to the lens 9 on the tip 101, and is sealed to the outside of the cable. The flexible sleeve 91 is disposed inside the inner tube body 100 and is sealed to the outside of the cable. The front end of the flexible sleeve 91 is sealed to the tip 101, and the rear end of the flexible sleeve 91 extends to the mounting base 5. In this embodiment, the inner tube body 100 and the tip 101 are an integral structure. It can be understood that the inner tube body 100 and the tip 101 can also be separately disposed and then sealed together. The protective glass 105, the tip 101, and the elastic sleeve 91 form an isolation barrier, completely enclosing the lens 9 and the cables inserted into the body. This prevents contaminants such as patient tissue and bodily fluids from adhering to the surface of the lens 9 and cables, reducing the difficulty of post-operative instrument handling. In this embodiment, the protective glass 105 is sealed to the front end face of the tip 101, and an opening is provided at the location of the protective glass 105 corresponding to the instrument channel 8 for the entry and exit of instruments or liquids.

[0052] Furthermore, the protective glass 105 is made of colored optical glass capable of blocking light of a specific wavelength, which corresponds to the laser wavelength emitted by the fiber optic guide assembly 2. The fiber optic guide assembly 2 needs to emit a laser of a specific wavelength into the surgical area. If the laser enters the lens 9 directly or after being reflected by tissue, it will affect the observation effect and damage the lens 9. The use of colored optical glass capable of blocking light of a specific wavelength as the protective glass 105 is to block the laser and avoid interference from the laser light wave to the lens 9.

[0053] Preferred, such as Figure 6 As shown, an illumination element 92 is provided at the front end of the tip 101. The illumination element 92 is located on both sides of the lens 9 and close to the protective glass 105. The illumination element 92 is provided to illuminate the lens 9, avoiding dim imaging and ensuring that the doctor can clearly identify all tissue details in the field of view.

[0054] like Figure 3As shown, the inner tube assembly includes a sealing valve 103 and a duckbill valve 104. The rear end of the inner tube body 100 extends into the mounting base 5, and the sealing valve 103 and duckbill valve 104 are connected to the rear end of the inner tube body 100. The front end of the inner tube body 100 extends to the front end of the outer tube 3. The gap between the inner wall of the inner tube body 100 and the outer wall of the elastic sleeve 91 forms a partial instrument channel 8, and the inlet / outlet fluid assembly 4 is connected to the fluid path of this partial instrument channel 8. The inner tube body 100 has an outwardly extending channel at the position corresponding to the mounting base 5. A connecting pipe 102 communicating with the mounting base 5 is provided in the channel. The rear end of the elastic sleeve 91 is sealed to the connecting pipe 102. The rear end of the cable passes through the connecting pipe 102, exits the inner tube body 100, passes through the mounting base 5, and connects to the plug. The instrument channel 8 can both insert instruments and serve as a liquid channel for rinsing fluid circulation. The rear end of the inner tube body 100 is equipped with a sealing valve 103 and a duckbill valve 104, which allows instruments to enter the instrument channel 8 smoothly. At the same time, the sealing valve 103 and the duckbill valve 104 will seal the rear end of the inner tube body 100 due to the continuous pressure generated by the rinsing fluid circulation in the instrument channel 8, which can prevent the rinsing fluid in the channel from overflowing from the rear end of the inner tube body 100, thus forming an automatic sealing and waterproof function for the instruments.

[0055] In this embodiment, the instrument channel 8 is formed by the connecting seat 6, the sealing valve 103, the duckbill valve 104, and the instrument tube 81, wherein the instrument tube 81 is a channel between the inner tube and the elastic sleeve 91. When an instrument is inserted into the instrument tube 81, the elastic sleeve 91 deforms to provide space for the instrument to enter, facilitating instrument insertion and preventing rigid collision between the elastic sleeve 91 and the instrument. In other embodiments, the instrument tube 81 is a pipe made of elastic material disposed between the inner tube and the elastic sleeve 91.

[0056] like Figure 2 and Figure 10 As shown, the fiber optic guide assembly 2 includes a fiber optic lock 21, a fiber optic guide 22, a latch 23, and a conduit 24 connected in sequence. The conduit 24 passes through the instrument channel 8 to the front end of the outer tube 3. The latch 23 is locked to the connecting seat 6. The fiber optic lock 21 is used to lock the fiber optic cable, and the fiber optic guide 22 is used to guide the fiber optic cable. When connecting the fiber optic guide assembly 2 to the endoscope assembly, first, the conduit 24 is passed through the instrument channel 8 to the front end of the outer tube 3 and locked to the connecting seat 6 by the latch 23. The fiber optic cable is then inserted from the end of the fiber optic lock 21. The fiber optic guide 22 is used to guide the fiber optic cable into the conduit 24. After the fiber optic tip reaches the desired position, the fiber optic lock 21 is used to lock the fiber optic cable.

[0057] like Figure 11As shown, the end of the connector body 61 furthest from the mounting base 5 is provided with a locking groove 64, and the fiber optic locking device 21 is provided with a corresponding locking pin 25. The locking pin 25 engages with the locking groove 64 to connect the fiber optic guide assembly 2 and the connector 6 assembly. The locking groove 64 is used to lock the fiber optic guide assembly 2 or the shredder assembly 1. The shredder assembly 1 is also provided with a corresponding locking pin 25, which engages with the locking groove 64 to connect the shredder assembly 1 and the connector 6 assembly.

[0058] like Figure 2 , Figure 3 , Figures 7 to 9 As shown, a movable connector 7 is provided between the mounting base 5 and the inlet / outlet liquid assembly 4. The movable connector 7 has a barbed step 71 at one end near the inlet / outlet liquid assembly 4 and a locking groove 72 at one end near the mounting base 5. The inlet / outlet liquid assembly 4 has a connecting groove 43 at one end near the movable connector 7. The barbed step 71 and the connecting groove 43 are engaged and have a clearance fit to achieve a rotatable connection between the movable connector 7 and the inlet / outlet liquid assembly 4. The mounting base 5 has a locking block at one end near the movable connector 7. The locking block is embedded in the locking groove 72 to lock the mounting base 5 and the movable connector 7. The movable connector 7 has a second handle 73 for easy gripping. The hook portion of the barbed step 71 is wedge-shaped, with a deformable portion 74 on the side facing the connecting groove 43, featuring an inclined guide surface for easy compression deformation during assembly. The opposite side has a vertical stop surface. When the barbed step 71 is fully engaged in the connecting groove 43, the vertical stop surface rigidly abuts against the bottom step of the connecting groove 43, preventing the movable connector 7 from being pulled out. Furthermore, the barbed step 71 and the connecting groove 43 have a clearance fit, allowing the movable connector 7 to rotate relative to the rotating surface 45. The front end of the movable connector 7 is rotatably connected to the inlet / outlet liquid assembly 4, and the rear end of the movable connector 7 is locked to the mounting base 5 via a locking assembly. This allows the mounting base 5 to drive the inner tube body 100 to rotate relative to the inlet / outlet liquid assembly 4 and the outer tube 3. The movable connector 7 has a simple structure and is easy to connect. It should be noted that this invention aims to enable the mounting base 5 to rotate relative to the inlet / outlet liquid assembly 4. The structure of the movable connector 7 described above is merely an example; other connection structures capable of achieving the desired function can be used.

[0059] like Figure 3 As shown, the mounting base 5 includes a mounting base body 51 connected to the inner tube assembly and a first handle 52 extending radially from the mounting base body 51. The first handle 52 has a cable channel and is connected to a plug. The first handle 52 is provided for the operator to hold, and the cable of the inner tube assembly can pass through the cable channel of the first handle 52 from inside the mounting base body 51, ultimately converging at the plug, achieving orderly cable routing and avoiding external interference with surgical operations. When the fiber optic guide assembly 2 or the shredder assembly 1 passes through the instrument channel 8 to the front end of the outer tube 3, the locking groove 64 locks it to the connecting groove 43, maintaining the connection and preventing the fiber optic guide assembly 2 or the shredder assembly 1 from loosening.

[0060] like Figure 2 , Figure 5 and Figure 7 As shown, the outer tube 3 has several circumferentially distributed reflux holes 31 at its front end. The liquid inlet and outlet assembly 4 includes an inlet end 41 with an inlet valve, an outlet end 42 with an outlet valve, and a seat 44 connected to the outer tube 3. The inlet end 41 and the outlet end 42 are located on the seat 44. The inlet end 41 extends into the outer tube 3 and communicates with the inner tube body 100 for introducing flushing liquid. The outlet end 42 communicates with the liquid channel formed between the inner tube assembly and the outer tube 3 for absorbing waste liquid. The flushing liquid entering through the inlet end 41 is flushed out through the opening of the protective glass 105, and the waste liquid flows out from the reflux holes 31 to the outlet end 42, forming a flushing liquid circulation.

[0061] Unless otherwise specified, the raw materials and equipment used in this invention are all commonly used in the field; unless otherwise specified, the methods used in this invention are all conventional methods in the field.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An endoscopic device for excision surgery, characterized in that, The device includes an endoscope assembly, a fiber optic guide assembly (2), and a shredder assembly (1). The endoscope assembly includes an endoscope, an outer tube (3), an inlet / outlet fluid assembly (4), an inner tube assembly, a mounting base (5), a connecting base (6), and an instrument channel (8). The outer tube (3) is fixed to the front end of the inlet / outlet fluid assembly (4). The mounting base (5) is rotatably connected to the rear end of the inlet / outlet fluid assembly (4). The connecting base (6) is slidably connected to the mounting base (5) in the front-back direction. The rear end of the inner tube assembly is fixed to the mounting base (5). The front end of the inner tube assembly passes through the mounting base (5) and the inlet / outlet fluid assembly (4) in sequence and extends out of the front end of the outer tube (3). The gap between the inner tube assembly and the outer tube (3) forms a liquid channel communicating with the inlet / outlet fluid assembly (4). The end of the endoscope lens (9) extends into the inner tube assembly and extends to the front end of the inner tube assembly. The instrument channel (8) is connected to the connecting base (6) and passes through the connecting base (6), the mounting base (5), and the inner tube assembly in the front-back direction. The fiber optic guide assembly (2) and the shredder assembly (1) are optionally installed on the connector (6), and the front end of the fiber optic guide assembly (2) or the shredder assembly (1) passes through the instrument channel (8) to the front end of the outer tube (3); The connecting seat (6) includes a connecting seat body (61) fixed in the front-back direction and an operating hand ring (62). The mounting seat (5) is fixed with a pin (53). The operating hand ring (62) is slidably connected to the pin (53) in the front-back direction. A spring (54) is provided between the operating hand ring (62) and the mounting seat (5) to keep the operating hand ring (62) away from the mounting seat (5).

2. The surgical endoscope device for excision according to claim 1, characterized in that, The endoscope includes an elastic sleeve (91), a lens (9), and a cable. The inner tube assembly includes a tip (101) extending from the front end of the outer tube (3) and an inner tube body (100) extending rearward from the tip (101). The inner tube body (100) is sealed to the tip (101). The lens (9) is located inside the tip (101). A protective glass (105) is sealed to the tip (101) at the position corresponding to the lens (9). The elastic sleeve (91) is located inside the inner tube body (100) and sealed to the outside of the cable. The front end of the elastic sleeve (91) is sealed to the tip (101), and the rear end of the elastic sleeve (91) extends to the mounting base (5).

3. The surgical endoscope device for excision according to claim 2, characterized in that, The protective glass (105) is a colored optical glass capable of blocking light of a specific wavelength, which corresponds to the laser wavelength emitted by the fiber optic guide assembly (2).

4. The surgical endoscope device for excision according to claim 2, characterized in that, The tip (101) is provided with an illumination element (92) at its front end, and the illumination element (92) is located close to the protective glass (105).

5. The endoscopic device for excision surgery according to claim 2, characterized in that, The inner tube assembly includes a sealing valve (103) and a duckbill valve (104). The rear end of the inner tube body (100) extends into the mounting base (5), and the sealing valve (103) and the duckbill valve (104) are connected to the rear end of the inner tube body (100). The front end of the inner tube body (100) extends to the front end of the outer tube (3). The gap between the inner tube body (100) and the elastic sleeve (91) forms a partial instrument channel (8), and the inlet / outlet liquid assembly (4) is connected to the liquid path of this partial instrument channel (8).

6. An endoscopic device for excision surgery according to any one of claims 1 to 5, characterized in that, The connector (6) has a locking groove (64) at its rear end for locking the fiber optic guide assembly (2) or the shredder assembly (1).

7. An endoscopic device for excision surgery according to any one of claims 1 to 5, characterized in that, The fiber optic guide assembly (2) includes a fiber optic lock (21), a fiber optic guide (22), a latch (23), and a conduit (24) connected in sequence. The conduit (24) passes through the instrument channel (8) to the front end of the outer tube (3). The latch (23) is locked with the connecting seat (6). The fiber optic lock (21) is used to lock the fiber optic cable, and the fiber optic guide (22) is used to guide the fiber optic cable.

8. An endoscopic device for excision surgery according to any one of claims 1 to 5, characterized in that, The mounting base (5) includes a mounting base body (51) connected to the inner tube assembly and a first handle (52) extending radially from the mounting base body (51), the first handle (52) having a cable channel and being connected to a plug.

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