Endoscope device for enucleation surgery

Abstract

The invention relates to the technical field of medical instruments, and discloses an enucleation endoscope device which comprises an endoscope assembly, an optical fiber guider assembly and a smashing knife assembly, the endoscope assembly comprises an endoscope, an inner tube assembly and an instrument channel, the lens end of the endoscope extends into the inner tube assembly and extends to the front end of the inner tube assembly, and the optical fiber guider assembly is connected with the smashing knife assembly. The instrument channel penetrates through the connecting base, the mounting base and the inner pipe assembly in the front-back direction; the optical fiber guider assembly and the smashing knife assembly are alternatively installed on the connecting base, and the front end of the optical fiber guider assembly or the smashing knife assembly penetrates through the instrument channel to the outside of the front end of the outer tube. According to the enucleation operation endoscope device, the enucleation function and the smashing function are integrated on the same endoscope, and the enucleation operation endoscope device has the advantages of being high in operation efficiency, simple in aftertreatment and low in operation cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and particularly relates to a enucleation endoscope device. BACKGROUND

[0002] Laser enucleation is an effective method for treating prostatic hyperplasia. In the operation process, the prostatic hyperplasia tissue is usually stripped by using the enucleation mirror matched with the operation hand piece, and then the pulverizing mirror matched with the pulverizing knife is replaced to stir and suck out the prostatic hyperplasia tissue. However, the enucleation mirror and the pulverizing mirror need to be replaced in the above operation, the operation process is complex, and the instrument cost and the postoperative cleaning and disinfection and other post-processing work are increased. SUMMARY

[0003] In order to solve the above technical problems, the present application provides an enucleation endoscope device, which has the advantages of simplifying the operation process, simple post-processing and low cost.

[0004] The specific technical scheme of the present application is as follows: an enucleation endoscope device, comprising an endoscope assembly, a fiber guide assembly and a pulverizing knife assembly, the endoscope assembly comprising an endoscope, an outer tube, an in-out liquid assembly, an inner tube assembly, a mounting seat, a connecting seat and an instrument channel, the outer tube being fixed to the front end of the in-out liquid assembly, the mounting seat being rotationally connected to the rear end of the in-out liquid assembly, the connecting seat being slidingly connected to the mounting seat in the front-rear direction, the rear end of the inner tube assembly being fixed to the mounting seat, the front end of the inner tube assembly sequentially passing through the mounting seat, the in-out liquid assembly and extending out of the front end of the outer tube, the gap between the inner tube assembly and the outer tube forming a liquid channel communicating with the in-out liquid assembly, and the lens end of the endoscope extending into the inner tube assembly and extending to the front end of the inner tube assembly, the instrument channel being connected with the connecting seat and penetrating through the connecting seat, the mounting seat and the inner tube assembly in the front-rear direction. The fiber guide assembly and the pulverizing knife assembly are alternatively installed in the connecting seat, and the front end of the fiber guide assembly or the pulverizing knife assembly passes through the instrument channel to the outside of the front end of the outer tube.

[0005] In the above endoscope device, the endoscope assembly is alternatively connected with the fiber guide assembly and the pulverizing knife assembly, the front end of the inner tube assembly extends out of the front end of the outer tube, and the lens 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 seat relative to the in-out liquid assembly and the outer tube to change the observation angle to perform the whole observation function. The instrument channel is used for the penetration and connection of the fiber guide assembly or the pulverizing knife assembly. During the operation process, the fiber guide assembly or the pulverizing knife assembly can be selected according to the operation requirement. During the operation, the instrument channel slides forward and backward with the connecting seat to perform the enucleation and pulverization operation. By integrating the enucleation and pulverization functions on the same endoscope, only one endoscope is needed during the whole operation, the number of surgical instruments is reduced, the cost is reduced, and the postoperative instrument post-processing work is reduced. The in-out liquid assembly guarantees the clear operation field by in-out liquid through the liquid channel.

[0006] Optionally, the connecting seat comprises a connecting seat body fixed in the front-rear direction and an operation ring, the mounting seat is fixed with a pin shaft, the operation ring is slidingly connected to the pin shaft in the front-rear direction, and a spring is arranged between the operation ring and the mounting seat to keep the operation ring away from the mounting seat.

[0007] In the above technical solution, the operation ring can drive the connecting seat body to slide relative to the mounting seat, which is convenient and labor-saving, and the spring arranged between the operation ring and the mounting seat can realize self-resetting of the connecting seat, which is convenient for operation.

[0008] Optionally, the endoscope comprises an elastic sleeve, a lens and a cable, the inner tube assembly comprises a tip head extending out of the front end of the outer tube and an inner tube body extending backward from the tip head, the inner tube body is sealingly connected with the tip head, the lens is arranged in the tip head, a protective glass sealingly connected with the tip head is arranged at a position corresponding to the lens, the elastic sleeve is arranged in the inner tube body and sealingly wrapped outside the cable, the front end of the elastic sleeve is sealingly connected with the tip head, and the rear end of the elastic sleeve extends to the mounting seat.

[0009] In the above technical solution, the protective glass, the tip head and the elastic sleeve form an isolation barrier to completely wrap the lens and the cable extending into the body, so as to prevent the patient's tissues, body fluids and other pollutants from adhering to the surface of the lens and the cable, and reduce the difficulty of postoperative instrument processing.

[0010] Optionally, the protective glass is colored optical glass capable of cutting off light of a specific wavelength, and the specific wavelength corresponds to the wavelength of the laser emitted by the optical fiber guide assembly.

[0011] In the above technical solution, the optical fiber guide assembly needs to emit laser of a specific wavelength to the surgical area, and if the laser directly or after reflection enters the lens, it will affect the observation effect and damage the lens. The colored optical glass capable of cutting off light of a specific wavelength is used as the protective glass to block the laser, so as to avoid the interference of the laser wave to the lens.

[0012] Optionally, the tip head is provided with an illuminating part, and the illuminating part is arranged close to the protective glass.

[0013] In the above technical solution, the illuminating part is arranged to provide illumination for the lens, so as to avoid dark imaging and ensure that the doctor can clearly identify all tissue details in the field of view.

[0014] Optionally, the inner tube assembly comprises a sealing valve and a duckbill valve, the rear end of the inner tube body extends into the mounting seat, 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, and the gap between the inner tube body and the elastic sleeve forms a part of the instrument channel, and the inlet and outlet liquid assembly is in liquid communication with the part of the instrument channel.

[0015] In the technical scheme, the instrument channel can not only insert the instrument but also participate in the circulation of the flushing liquid as a liquid channel, the rear end of the inner tube body is provided with a sealing valve and a duckbill valve, the instrument can smoothly enter the instrument channel, and the sealing valve and the duckbill valve can be sealed at the rear end of the inner tube body due to the continuous pressure generated by the flushing liquid in the instrument channel, so that the flushing liquid in the channel can be prevented from overflowing from the rear end of the inner tube body, and an automatic sealing and waterproof function for the instrument can be formed.

[0016] Optionally, the mounting seat and the liquid inlet and outlet assembly are provided with a movable connecting piece, one end of the movable connecting piece close to the liquid inlet and outlet assembly is provided with an inverted hook step, one end of the movable connecting piece close to the mounting seat is provided with a locking groove, one end of the liquid inlet and outlet assembly close to the movable connecting piece is provided with a connecting groove, the inverted hook step and the connecting groove are connected and gap-connected, so as to realize the rotary connection between the movable connecting piece and the liquid inlet and outlet assembly, and one end of the mounting seat close to the movable connecting piece is provided with a clamping block, the clamping block is embedded in the locking groove to realize the locking between the mounting seat and the movable connecting piece.

[0017] In the technical scheme, the front end of the movable connecting piece is rotatably connected with the liquid inlet and outlet assembly, the rear end of the movable connecting piece is locked with the mounting seat through the locking assembly, so as to realize that the mounting seat drives the inner tube body to rotate relative to the liquid inlet and outlet assembly and the outer tube, and the movable connecting piece has simple structure and convenient connection.

[0018] Optionally, the rear end of the connecting seat is provided with a locking groove for locking the optical fiber guide assembly or the crushing knife assembly.

[0019] In the technical scheme, when the optical fiber guide assembly or the crushing knife assembly passes through the instrument channel to the outside of the front end of the outer tube, the locking groove locks the optical fiber guide assembly or the crushing knife assembly with the connecting groove, so that the optical fiber guide assembly or the crushing knife assembly is kept in the connected state and is prevented from loosening.

[0020] Optionally, the optical fiber guide assembly comprises an optical fiber locking device, an optical fiber guide, a lock and a catheter which are connected in sequence, the catheter passes through the instrument channel to the outside of the front end of the outer tube, the lock is locked with the connecting seat, the optical fiber locking device is used for locking the optical fiber, and the optical fiber guide is used for guiding the optical fiber.

[0021] In the technical scheme, when the optical fiber guide assembly and the endoscope assembly are connected, the catheter is first passed through the instrument channel to the outside of the front end of the outer tube, the lock is locked with the connecting seat, the optical fiber is inserted from the end of the optical fiber locking device, the optical fiber guide is used for guiding the optical fiber, the optical fiber enters the catheter, and the optical fiber head reaches the required position, and then the optical fiber is locked by the optical fiber locking device.

[0022] Optionally, the mounting seat comprises a mounting seat body connected with the inner tube assembly and a first handle radially extending from the mounting seat body, and a cable channel is arranged in the first handle and connected with the plug.

[0023] In the technical scheme, the first handle is arranged for the operator to hold, the cable of the inner tube assembly can pass through the cable channel of the first handle from inside the mounting seat body, and finally gather to the plug, so that the cable is orderly led out and interference with the operation is avoided.

[0024] Compared with the prior art, the present application has at least the following advantages: (1) The present application integrates the enucleation and crushing functions on the same endoscope, so that only one endoscope is needed during the whole operation, the number of surgical instruments is reduced, the cost is lowered, and the postoperative instrument processing work is reduced. (2) The optical fiber guide assembly and the crushing knife assembly are connected and fixed with the endoscope assembly by insertion and locking, so that the installation is simple. (3) The present application controls the extension length of the instrument by controlling the forward and backward sliding of the connecting seat relative to the mounting seat, and controls the viewing angle of the lens by controlling the relative movement of the mounting seat relative to the liquid inlet and outlet assembly, so that the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a partial cross-sectional view of the optical fiber guide assembly and the endoscope assembly in the combined state of the present application; Figure 3 is a partial cross-sectional view of the endoscope assembly of the present application; Figure 4 is Figure 3 is an enlarged view of part A in Figure 5 is a cross-sectional view of the front end of the endoscope assembly of the present application; Figure 6 is a front view of the front end of the endoscope assembly of the present application; Figure 7 is a partial structural schematic diagram of the endoscope assembly of the present application; Figure 8 is a cross-sectional view of the liquid inlet and outlet assembly and the movable connecting piece in the connected state of the present application; Figure 9 is a structural schematic diagram of the movable connecting piece of the present application; Figure 10 is a structural schematic diagram of the optical fiber guide assembly of the present application; Figure 11 is a connection structure schematic diagram of the optical fiber guide assembly and the connecting seat of the present application; Figure 12 is a structural schematic diagram of the crushing knife assembly and the endoscope assembly in the combined state of the present application.

[0026] Figure: 1, pulverizing knife assembly; 2, optical fiber guide assembly; 21, optical fiber lock; 22, optical fiber guide; 23, lock catch; 24, guide tube; 25, lock pin; 3, outer tube; 31, backflow hole; 4, liquid inlet and outlet assembly; 41, liquid inlet end; 42, liquid outlet end; 43, connecting groove; 44, seat body; 45, rotating surface; 5, mounting seat; 51, mounting seat body; 52, first handle; 53, pin shaft; 54, spring; 6, connecting seat; 61, connecting seat body; 62, operating hand ring; 63, connecting pin; 64, locking groove; 7, movable connecting piece; 71, barb step; 72, lock groove; 73, second handle; 74, deformation part; 8, instrument channel; 81, instrument tube; 9, lens; 91, elastic sleeve; 92, illuminating part; 100, inner tube body; 101, tip; 102, connecting tube; 103, sealing valve; 104, duckbill valve; 105, protective glass. DETAILED DESCRIPTION

[0027] The present application is described below through specific examples. It should be understood that these examples are only used to illustrate the present application and not used to limit the scope of the present application, and any changes and advantages that can be thought of by those skilled in the art without departing from the spirit and scope of the present application are included in the present application, and the appended claims and any equivalents thereof are the protection scope of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The raw materials and equipment used in the present application are conventional raw materials and equipment in the art, which can be obtained from conventional commercial channels, unless otherwise specified. The methods used in the present application are conventional methods in the art, unless otherwise specified.

[0029] In the following examples, "front end" refers to the end towards 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-rear direction is the spatial direction from the "rear end" to the "front end".

[0030] Example 1: Reference Figures 1 to 12As shown, the present application provides a kind of enucleation surgery endoscope device, including for observing surgical environment Endoscope component, for conducting laser to cut target tissue Optical fiber guide component 2 and for crushing target tissue Pulverizing knife component 1.Endoscope component includes endoscope, outer tube 3, access liquid component 4, inner tube component, mounting seat 5, connecting seat 6 and instrument channel 8, outer tube 3 is fixed in access liquid component 4 front end and is communicated with access liquid component 4, mounting seat 5 is rotatably connected in access liquid component 4 rear end, connecting seat 6 is slidably connected in mounting seat 5 rear end, the rear end of inner tube component is fixed with mounting seat 5, the front end of inner tube component is in turn through mounting seat 5, access liquid component 4 and extends out of outer tube 3 front end, inner tube component can rotate relative to outer tube 3, the gap between inner tube component and outer tube 3 forms liquid channel communicated with access liquid component 4, and the lens 9 end of endoscope is inserted into inner tube component and extends to the front end of inner tube component, instrument channel 8 is connected with connecting seat 6, and along the front and rear direction, it is through connecting seat 6, mounting seat 5 and inner tube component; Optical fiber guide component 2 and pulverizing knife component 1 are alternatively installed in connecting seat 6, and the front end of optical fiber guide component 2 or pulverizing knife component 1 passes through instrument channel 8 to the outside of outer tube 3 front end.

[0031] In the above-mentioned endoscope device, the mounting seat 5 is rotatably connected to the rear end of the access liquid component 4, and the mounting seat 5 can rotate around the device axis relative to the access liquid component 4 to drive the inner tube component to rotate around the outer tube 3, providing angle adjustment space for surgical operation. The gap between the inner tube component and the outer tube 3 forms a liquid channel communicated with the access liquid component 4, and the injection of irrigation fluid or the discharge of waste fluid in the surgical area can be realized through the access liquid component 4. The connecting seat 6 is slidably connected to the rear end of the mounting seat 5 along the front and rear directions, and the instrument channel 8 is connected to the connecting seat 6. The instrument channel 8 is used for the insertion and operation of the optical fiber guide component 2 or the pulverizing knife component 1. The length of the front end of the instrument inserted into the instrument channel 8 can be adjusted by pushing the connecting seat 6 to adapt to different surgical scene requirements. The lens 9 end of the endoscope extends along the internal channel of the inner tube component and extends to the front end position of the inner tube component. The front end of the inner tube component is made of transparent structure and extends out of the front end of the outer tube 3, ensuring clear imaging of the surgical area.

[0032] The optical fiber guide component 2 and the pulverizing knife component 1 adopt an alternative assembly mode, that is, according to the requirements of the surgical steps, one of the components is selected to be inserted from the rear end of the connecting seat 6 forward, and the functional parts at the front end of the component, such as the optical fiber head or the pulverizing knife head, can pass through the instrument channel 8 and extend to the outside of the front end of the outer tube 3 to directly act on the surgical area, realizing the laser stripping or crushing operation of the prostate hyperplasia tissue. During the operation, first, the optical fiber guide component 2 is connected with the endoscope component, and after the stripping of the prostate hyperplasia tissue is completed, the optical fiber guide component 2 is removed, and the pulverizing knife component 1 is connected with the endoscope component to crush and discharge the stripped prostate hyperplasia tissue out of the body.

[0033] The endoscope device of the present application, the endoscope assembly can be selectively connected with the optical fiber guide assembly 2 and the crushing knife assembly 1, the inner tube assembly extends out of the front end of the outer tube 3, 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 seat 5 relative to the inlet and outlet assembly 4 and the outer tube 3, so as to change the observation angle and realize the whole observation function; the instrument channel 8 is used for the penetration and connection of the optical fiber guide assembly 2 or the crushing knife assembly 1, during the operation, the optical fiber guide assembly 2 or the crushing knife assembly 1 can be selected according to the operation requirement, during the operation, the instrument channel 8 slides forward and backward with the connecting seat 6 to perform the enucleation and crushing operation, by integrating the enucleation and crushing functions on the same endoscope, only one endoscope is needed during the whole operation, the operation instruments are reduced, the cost is reduced, and the postoperative instrument processing work is reduced.

[0034] In a preferred embodiment of the present application, as shown in Figure 4 The connecting seat 6 includes a connecting seat body 61 fixed in the front and rear directions and an operating hand ring 62, the operating hand ring 62 is connected with the connecting seat body 61 through a connecting pin 63, the mounting seat 5 is fixed with a pin shaft 53, the operating hand ring 62 is slidingly connected with the pin shaft 53 in the front and rear directions, a spring 54 is arranged between the operating hand ring 62 and the mounting seat 5, one end of the pin shaft 53 is fixed with the mounting seat 5, and the other end is clamped with the operating hand ring 62, the spring 54 is sleeved outside the pin shaft 53, one end of the spring 54 abuts against the operating hand ring 62 to give the operating hand ring 62 a pre-tightening force away from the mounting seat 5, so that the operating hand ring 62 is kept away from the mounting seat 5. The operating hand ring 62 can drive the connecting seat body 61 to slide relative to the mounting seat 5, which is convenient and labor-saving, and the spring 54 is arranged between the operating hand ring 62 and the mounting seat 5 to realize the self-resetting of the connecting seat 6, which is convenient for operation.

[0035] As shown in Figure 3 and Figure 5As shown, the endoscope comprises a flexible sleeve 91, a lens 9 and a cable connected with the lens 9, the inner tube assembly comprises a tip 101 extending from the front end of the outer tube 3 and an inner tube body 100 extending backward from the tip 101, the inner tube body 100 is sealingly connected with the tip 101, the lens 9 is arranged in the tip 101, the tip 101 is provided with a sealingly connected protective glass 105 at a position corresponding to the lens 9, the flexible sleeve 91 is arranged in the inner tube body 100 and sealingly wrapped outside the cable, the front end of the flexible sleeve 91 is sealingly connected with the tip 101, and the rear end of the flexible sleeve 91 extends to the mounting seat 5. In this embodiment, the inner tube body 100 and the tip 101 are of an integrated structure, and it can be understood that the inner tube body 100 and the tip 101 can also be separately arranged and sealingly connected. The protective glass 105, the tip 101 and the flexible sleeve 91 form an isolation barrier, completely wrapping the lens 9 and the cable extending into the body, preventing the patient's tissues, body fluids and other pollutants from adhering to the surface of the lens 9 and the cable, and reducing the difficulty of postoperative instrument processing. In this embodiment, the protective glass 105 is sealingly connected with the front end surface of the tip 101, and the protective glass 105 is provided with a through opening corresponding to the instrument channel 8 for the instrument or liquid to enter or exit.

[0036] Further, the protective glass 105 is made of colored optical glass capable of cutting off light of a specific wavelength corresponding to the wavelength of the laser emitted by the optical fiber guide assembly 2. The optical fiber guide assembly 2 needs to emit laser of a specific wavelength to the surgical area, and if the laser directly or after reflection enters the lens 9, it will affect the observation effect and damage the lens 9. The colored optical glass capable of cutting off light of a specific wavelength is used as the protective glass 105 to block the laser, avoiding the interference of the laser wave to the lens 9.

[0037] Preferably, as shown in the drawings, Figure 6 The tip 101 is provided with an illuminating member 92 at the front end, and the illuminating member 92 is arranged on both sides of the lens 9 and close to the protective glass 105. The illuminating member 92 is arranged to provide illumination for the lens 9, avoiding dark imaging, and ensuring that the doctor can clearly identify all the tissue details in the field of view.

[0038] As shown in the drawings, 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 seat 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, and the gap between the inner wall of the inner tube body 100 and the outer wall of the elastic sleeve 91 forms part of the instrument channel 8, and the access liquid assembly 4 is in liquid communication with the part of the instrument channel 8. The inner tube body 100 is provided with an outwardly expanded channel at a position corresponding to the mounting seat 5, the channel is provided with a connecting pipe 102 in communication with the mounting seat 5, the rear end of the elastic sleeve 91 is sealingly connected to the connecting pipe 102, and the rear end of the cable passes out of the inner tube body 100 through the connecting pipe 102 and is connected to the plug through the mounting seat 5. The instrument channel 8 can not only insert the instrument but also serve as a liquid channel to participate in the circulation of the flushing liquid, and the rear end of the inner tube body 100 is provided with the sealing valve 103 and the duckbill valve 104, which can enable the instrument to smoothly enter the instrument channel 8, and at the same time, the sealing valve 103 and the duckbill valve 104 will be sealed at the rear end of the inner tube body 100 due to the continuous pressure generated by the flushing liquid in the instrument channel 8, which can prevent the flushing liquid in the channel from overflowing from the rear end of the inner tube body 100, thereby forming an automatic sealing and waterproof function for the instrument.

[0039] 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 gap channel between the inner tube and the elastic sleeve 91. When the instrument enters the instrument tube 81, the elastic sleeve 91 deforms to provide space for the instrument to enter, which facilitates the insertion of the instrument and prevents the elastic sleeve 91 from rigidly colliding with the instrument. In other embodiments, the instrument tube 81 is a pipe made of elastic material arranged between the gap channel of the inner tube and the elastic sleeve 91.

[0040] As shown in Figure 2 and Figure 10 , the optical fiber guide assembly 2 includes an optical fiber lock 21, an optical fiber guide 22, a lock 23, and a catheter 24 connected in sequence, the catheter 24 passes through the instrument channel 8 to the front end of the outer tube 3, the lock 23 is locked with the connecting seat 6, the optical fiber lock 21 is used to lock the optical fiber, and the optical fiber guide 22 is used to guide the optical fiber. When connecting the optical fiber guide assembly 2 with the endoscope assembly, first, the catheter 24 passes through the instrument channel 8 to the front end of the outer tube 3, and is locked with the connecting seat 6 through the lock 23, then the optical fiber is inserted from the end of the optical fiber lock 21, the optical fiber guide 22 is used to guide the optical fiber, so that the optical fiber enters the catheter 24, and after the head end of the optical fiber reaches the desired position, the optical fiber is locked with the optical fiber lock 21.

[0041] As shown in Figure 11As shown, the end of the connecting seat body 61 away from the mounting seat 5 is provided with a locking groove 64, and the optical fiber lock 21 is correspondingly provided with a locking pin 25, which is clamped into the locking groove 64 to realize the connection of the optical fiber guide assembly 2 and the connecting seat 6 assembly. The locking groove 64 is used to lock the optical fiber guide assembly 2 or the crushing knife assembly 1, and the crushing knife assembly 1 is also correspondingly provided with a locking pin 25, which is clamped into the locking groove 64 to realize the connection of the crushing knife assembly 1 and the connecting seat 6 assembly.

[0042] As shown in Figure 2 , Figure 3 , Figures 7 to 9 As shown, the mounting seat 5 and the liquid inlet and outlet assembly 4 are provided with a movable connecting piece 7, the end of the movable connecting piece 7 close to the liquid inlet and outlet assembly 4 is provided with an inverted hook step 71, the end of the movable connecting piece 7 close to the mounting seat 5 is provided with a locking groove 72, the end of the liquid inlet and outlet assembly 4 close to the movable connecting piece 7 is provided with a connecting groove 43, the inverted hook step 71 is clamped with the connecting groove 43 and the gap between them is matched, so as to realize the rotary connection of the movable connecting piece 7 and the liquid inlet and outlet assembly 4, the end of the mounting seat 5 close to the movable connecting piece 7 is provided with a clamping block, the clamping block is embedded in the locking groove 72 to realize the locking of the mounting seat 5 and the movable connecting piece 7, and the movable connecting piece 7 is provided with a second handle 73 for convenient holding. The hook part of the inverted hook step 71 is designed in a wedge shape, which is provided with a deformation part 74 of an inclined guide surface on the side facing the connecting groove 43, so as to be extruded and deformed during assembly, and the back side is a vertical stop surface. When the inverted hook step 71 is completely clamped into the connecting groove 43, the vertical stop surface and the groove bottom step of the connecting groove 43 form a rigid resistance, preventing the movable connecting piece 7 from being pulled out, and the gap between the inverted hook step 71 and the connecting groove 43 matches, so that the movable connecting piece 7 has an active gap and can rotate relative to the rotary surface 45. The front end of the movable connecting piece 7 is rotatably connected with the liquid inlet and outlet assembly 4, and the rear end of the movable connecting piece 7 is locked with the mounting seat 5 through a locking assembly, so as to realize that the mounting seat 5 drives the inner tube body 100 to rotate relative to the liquid inlet and outlet assembly 4 and the outer tube 3. The movable connecting piece 7 is simple in structure and convenient to connect. It should be noted that the mounting seat 5 is intended to rotate relative to the liquid inlet and outlet assembly 4, and the structure of the above-mentioned movable connecting piece 7 is only an example, and other connection structures that can achieve the target function can be used.

[0043] As shown in Figure 3 The mounting seat 5 includes a mounting seat body 51 connected with the inner tube assembly and a first handle 52 radially extending from the mounting seat body 51, and the first handle 52 is provided with a cable passage and is connected with a plug. The first handle 52 is provided for the operator to hold, the cable of the inner tube assembly can pass into the cable passage of the first handle 52 from the inside of the mounting seat body 51, and finally converge to the plug, realizing the orderly leading-out of the cable and avoiding external interference with the surgical operation. When the optical fiber guide assembly 2 or the crushing knife assembly 1 passes through the instrument channel 8 to the front end of the outer tube 3, the locking groove 64 locks it with the connecting groove 43, so that the two remain connected and prevent the optical fiber guide assembly 2 or the crushing knife assembly 1 from loosening.

[0044] As shown in Figure 2 , Figure 5 and Figure 7 , the front end of the outer tube 3 is provided with a plurality of circumferentially distributed backflow holes 31, the liquid inlet and outlet assembly 4 includes a liquid inlet end 41 provided with a liquid inlet valve, a liquid outlet end 42 provided with a liquid outlet valve, and a seat body 44 connected with the outer tube 3, the liquid inlet end 41 and the liquid outlet end 42 are arranged on the seat body 44, the liquid inlet end 41 extends into the outer tube 3 and communicates with the inner tube body 100, and is used for introducing the flushing liquid; the liquid outlet end 42 communicates with the liquid passage formed between the inner tube assembly and the outer tube 3, and is used for sucking the waste liquid; the flushing liquid introduced by the liquid inlet end 41 flows out from the through hole of the protective glass 105, and the waste liquid flows out from the backflow holes 31 to the liquid outlet end 42, forming a flushing liquid circulation.

[0045] The raw materials and equipment used in the present application are all common raw materials and equipment in the field unless otherwise specified; the methods used in the present application are all conventional methods in the field unless otherwise specified.

[0046] The above is only the preferred embodiment of the present application, and does not limit the present application in any way, and any simple modification, change and equivalent transformation of the above embodiment according to the technical essence of the present application still belongs to the protection scope of the technical solution of the present application.

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), 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).

2. The surgical endoscope device for excision according to claim 1, characterized in that, 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).

3. The endoscopic device for excision surgery 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).

4. The endoscopic device for excision surgery according to claim 3, 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).

5. The endoscopic device for excision surgery according to claim 3, 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).

6. The endoscopic device for excision surgery according to claim 3, 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).

7. An endoscopic device for excision surgery according to any one of claims 1 to 6, characterized in that, A movable connector (7) is provided between the mounting base (5) and the liquid inlet / outlet assembly (4). The movable connector (7) has a barbed step (71) at one end near the liquid inlet / outlet assembly (4) and a locking groove (72) at one end near the mounting base (5). The liquid inlet / outlet 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 the two are fitted with a gap to realize the rotatable connection between the movable connector (7) and the liquid inlet / outlet 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).

8. An endoscopic device for excision surgery according to any one of claims 1 to 6, 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).

9. An endoscopic device for excision surgery according to any one of claims 1 to 6, 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.

10. An endoscopic device for excision surgery according to any one of claims 1 to 6, 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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