Multi-pipe-diameter flushing device used in neurosurgery operation

Abstract

The invention relates to the technical field of medical instruments, and provides a multi-pipe-diameter flushing device used in neurosurgery in order to solve the problems that flushing and suction of flushing equipment in existing neurosurgery cannot be synchronized, and suction grading is insufficient, the multi-pipe-diameter flushing device used in neurosurgery comprises an outer pipe body, an inner pipe body and an outer pipe body, the working section is slidably arranged in the outer tube body in a penetrating manner and comprises a flushing tube, a first suction tube and a second suction tube; the operation section is arranged at the rear end of the outer pipe body, is in transmission connection with the rear end of the working section in a one-to-one correspondence manner, and is configured to drive the pipelines of the working section to stretch independently or in a combined manner along the corresponding slideways of the outer pipe body; the connecting section is arranged at the rear end of the operating section, is in one-to-one corresponding sealing connection with the rear end of the working section, and is configured to be connected with an external instrument to realize flushing and suction functions. The device can synchronously realize the collaborative operation of flushing and suction, can adapt to different bleeding scenes and cleaning requirements, and reduces the risk of surgical injury.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a multi-diameter flushing device for neurosurgery. BACKGROUND

[0002] The operation scene of neurosurgery has the characteristics of narrow space, fragile tissue and extremely high precision requirement. The intracranial operation area is usually located in a closed space wrapped by the skull. The intraoperative flushing and suction operation is the core link to ensure the safety of the operation, and its function implementation directly affects the clarity of the operation field, the tissue protection effect and the incidence of postoperative complications.

[0003] The flushing operation has three main functions: first, it delivers sterile saline, antibiotic solution, etc., to clean the operation area and remove blood, debris and clots, thereby avoiding visual obstruction and causing operation deviation; second, it removes the high temperature generated by high-frequency electrocoagulation, ultrasonic knife and other instruments to prevent heat damage to normal brain tissue; third, the flushing liquid containing antibiotics can form a local bacteriostatic environment to reduce the risk of postoperative intracranial infection.

[0004] Suction operation cooperates with flushing to immediately remove the waste liquid after flushing to avoid the accumulation of liquid affecting the visual field. It also needs to accurately remove different bleeding scenarios such as trace bleeding during micro-lesion removal, active bleeding after blood vessel injury and residual tissue residues. If suction is not timely or the force is not appropriate, it may prolong the operation time and even cause intracranial hematoma, brain hernia and other serious complications.

[0005] The neurosurgery flushing device disclosed in application No. 201921566318.0 includes a thin tube, one end of the thin tube is connected with a first connector, a cavity is formed in one side of the first connector, one side of the cavity is in communication with one end of the thin tube, a second connector is rotatably connected to one side of the first connector, two through holes are formed in the second connector, one end of one of the through holes is in communication with the other side of the cavity of the first connector, one end of the other through hole corresponds to the inner wall of one side of the first connector, and the other end of the one through hole is connected with one end of a flushing tube, and the other end of the other through hole is connected with one end of a suction tube. The other ends of the flushing tube and the suction tube are connected with a cylinder.

[0006] The neurosurgery flushing device in the above scheme adopts a structure design of a flushing tube and a suction tube cooperating with each other, which can realize quick switching between flushing and suction. However, it can only realize the independent switching of flushing and suction functions, and cannot perform collaborative operation of flushing and suction at the same time. Moreover, it is only equipped with a single suction tube, and cannot replace the flushing tube or the suction tube with different diameters according to different scenarios such as trace bleeding and active bleeding during neurosurgery. SUMMARY

[0007] To address the aforementioned problems, this invention aims to provide a multi-diameter irrigation device for neurosurgery, which can simultaneously perform irrigation and suction operations, avoiding operational interruptions caused by frequent function switching; at the same time, it can adapt to different bleeding scenarios and cleaning needs, accurately completing the removal of micro-bleeding, treatment of active bleeding, and irrigation of the surgical area, meeting diverse operational needs without the need to change devices, improving the clarity of the surgical field and operational efficiency, and reducing the risk of tissue damage.

[0008] The main idea of ​​the technical solution adopted in this invention is as follows: First, based on the adaptation to minimally invasive keyhole surgery, an outer tube with an inner diameter of 6mm and a length of 260mm is used. Three equilateral triangularly distributed sliding channels are provided inside, enabling independent extension and retraction of multiple tubes without interference within a minimal cross-sectional area. Second, based on the irrigation and suction needs of different surgical scenarios, irrigation tubes with diameters of 1mm, a first suction tube with a diameter of 2mm, and a second suction tube with a diameter of 3mm are set within the sliding channels, achieving functional differentiation between clean field of view, fine suction, and efficient suction. Third, for convenient control of tube extension and locking, an operating section is provided at the rear end of the outer tube. The tubes are moved by the adjustment groove of the handle sleeve and the push head. Positioning and resetting are achieved by the elastic buckle structure of the locking and unlocking heads. Combined with the extension characteristics of the outer telescopic tube and the quick-connect fitting, both operational flexibility and postoperative disassembly, cleaning, and sterilization requirements are considered. Simultaneously, a first elastic element assists in the resetting of the tubes after unlocking. Finally, the connecting section enables quick connection to external devices and adjustment of flow attraction intensity, and supports single tube, dual tube combination, and triple tube simultaneous extension modes, thereby shortening operation time, reducing labor costs, and improving operational safety.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A multi-diameter irrigation device for use in neurosurgery, comprising: The outer tube body has multiple sliding tracks inside for the extension and retraction of the pipeline; The working section, which slides through the inside of the outer tube, includes a flushing tube, a first suction tube, and a second suction tube; The operating section is located at the rear end of the outer tube and is connected to the rear end of the working section in a one-to-one transmission connection. It is configured to drive each pipeline of the working section to extend or retract individually or in combination along the corresponding slide of the outer tube. The connecting section, located at the rear end of the operating section, is sealed and connected one-to-one with the rear end of the working section. It is configured to connect to external instruments to achieve flushing and suction functions.

[0010] Furthermore, based on the above technical solution, the operation segment further includes: The handle sleeve is fitted onto the outside of the outer tube and has an adjustment groove. The adjustment mechanism is installed inside the handle sleeve; The external telescopic tube is the portion of the working section that extends beyond the tail end of the outer tube body. An adjusting pipe is arranged at the rear end of the outer telescopic pipe and abuts against the tail end of the working section; A plurality of first elastic members are sleeved outside the pipelines of the working section.

[0011] Through the above technical scheme, further, the adjusting mechanism comprises: A plurality of push heads are slidingly arranged in the adjusting grooves of the handle sleeve and are connected with the pipelines of the working section one by one, and are configured to push the corresponding pipelines to extend along the sliding channel of the outer pipe body; A plurality of locking heads are arranged on one side of the push head and are configured to lock and position the pipeline when the push head pushes the pipeline to the preset position; A plurality of unlocking heads are arranged outside the handle sleeve and are arranged one by one with the locking heads, and are configured to drive the locking head to be unlocked to reset the pipeline.

[0012] Through the above technical scheme, further, the connecting section comprises: A connecting pipe is threadedly connected to the rear end of the adjusting pipe; A plurality of interface pipes are arranged inside the connecting pipe and are arranged one by one with the pipelines of the working section; A plurality of inner telescopic pipes are connected one by one with the pipelines of the working section at one end and are connected with the interface pipes at the other end; A plurality of flow regulating valves are arranged inside the interface pipes and abut against the outer sidewalls of the inner telescopic pipes.

[0013] Through the above technical scheme, further, the flushing pipe, the first suction pipe and the second suction pipe are arranged in an equilateral triangle.

[0014] Through the above technical scheme, further, the inner cutting diameter of the outer pipe body is 6mm, and the length is 260mm.

[0015] Through the above technical scheme, further, the handle sleeve is detachably connected with the outer telescopic pipe through the quick plug connector.

[0016] The beneficial effects of the present application are: 1. The present application integrates the flushing pipe and the suction pipe with different diameters in the same outer pipe body, and the three sliding channels inside the outer pipe body are arranged in an equilateral triangle, which not only ensures the compact layout of the multiple pipelines to adapt to the minimally invasive lock hole surgical incision, but also enables the independent operation of each pipeline, and in the surgical process, the collaborative operation of flushing and suction can be realized according to the needs of the surgical area.

[0017] 2. The adjusting assembly of the present application can independently control each pipeline. By pushing the push head corresponding to the pipeline, the pipeline can be extended along the slide of the outer pipe body to the preset position, and then positioned by the locking head and the unlocking head. Based on the adjusting structure, three pipeline extension modes can be realized, including independent extension of a single pipeline, combined extension of any two pipelines, and synchronous extension of three pipelines. The pipeline movement in each mode does not interfere with each other, and can adapt to the fine needs of different surgical scenes.

[0018] 3. The connecting section of the present application can be quickly connected with an external flushing pump and aspirator. At the same time, the flow size and suction degree can be adjusted through the flow regulating valve, effectively shortening the operation time and reducing the probability of intraoperative accidents. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the outer pipe body structure of the present application; Figure 3 It is a schematic diagram of the present application Figure 1 It is a schematic diagram of the cross-sectional structure; Figure 4 It is a schematic diagram of the present application Figure 1 It is a schematic diagram of the structure without handle sleeve and outer telescopic pipe; Figure 5 It is a schematic diagram of the present application Figure 4 It is a schematic diagram of the structure without adjusting pipe and connecting pipe; Figure 6 It is a schematic diagram of the locking head structure of the present application; Figure 7 It is a schematic diagram of the unlocking head structure of the present application.

[0020] 1, outer pipe body; 11, slide; 12, communication groove; 2, working section; 21, flushing pipe; 22, first suction pipe; 23, second suction pipe; 3, operation section; 31, handle sleeve; 311, adjusting groove; 32, adjusting mechanism; 321, push head; 322, locking head; 323, unlocking head; 33, outer telescopic pipe; 34, adjusting pipe; 35, first elastic member; 36, quick connector; 4, connecting section; 41, connecting pipe; 42, interface pipe; 43, inner telescopic pipe; 44, flow regulating valve. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0022] The inventor found that the existing flushing device for neurosurgery adopts a structure design of a flushing pipe and an aspiration pipe matched together, which can realize quick switching between flushing and aspiration, but it can only realize independent switching of flushing and aspiration functions and cannot realize collaborative operation of flushing and aspiration at the same time. Moreover, only a single aspiration pipe is provided, and different pipe diameters of the flushing pipe or the aspiration pipe cannot be replaced according to different scenes such as micro-bleeding and active bleeding in neurosurgery.

[0023] Based on the above finding, the present application provides a multi-pipe diameter flushing device for neurosurgery. First, based on the adaptation of minimally invasive keyhole surgery, an outer pipe body with an inner diameter of 6 mm and a length of 260 mm is adopted, and three slide ways in an equilateral triangle distribution are arranged inside, so as to realize independent expansion and contraction of multiple pipes without interference at the minimum cross-sectional area. Second, based on the flushing and aspiration requirements of different surgical scenes, a flushing pipe with a diameter of 1 mm, a first aspiration pipe with a diameter of 2 mm and a second aspiration pipe with a diameter of 3 mm are arranged in the slide ways, so as to realize the function division of clean view, fine aspiration and efficient aspiration. Third, in order to conveniently control the expansion and contraction of the pipes, an operation section is arranged at the rear end of the outer pipe body, the pipes are moved through the adjusting groove of the handle sleeve and the push head, the positioning and resetting are realized by means of the elastic buckle structure of the locking head and the unlocking head, the expansion and contraction characteristics of the outer telescopic pipe and the quick plug connector are matched, the operation flexibility and the postoperative disassembly and sterilization requirements are considered, and the first elastic member is used to assist the resetting of the pipes after unlocking. Finally, the quick connection with external equipment and the flow and suction force adjustment are realized through the connecting section, and the single pipe, double pipe combination and three pipe synchronous extension modes are supported, so as to shorten the operation time, reduce the labor cost and improve the operation safety. EMBODIMENT

[0024] Referring to Figures 1-7 The present application discloses a multi-pipe diameter flushing device for neurosurgery, which is suitable for flushing and aspiration operation of various neurosurgical operations such as intracranial tumor resection and cerebral vascular anastomosis, and can effectively shorten the operation time, reduce the labor cost and improve the operation safety. The multi-pipe diameter flushing device for neurosurgery comprises an outer pipe body 1, a working section 2, an operation section 3 and a connecting section 4.

[0025] The outer pipe body 1 is made of medical 316L stainless steel, has an inner diameter of 6 mm and a length of 260 mm, and is suitable for the incision of minimally invasive keyhole surgery in neurosurgery, and can be directly inserted into the intracranial operation area without expanding the incision. The outer pipe body 1 is the main support structure of the device, and a plurality of slide ways 11 for the expansion and contraction movement of the pipes are arranged inside, and three slide ways 11 are preferred in the embodiment, which are arranged in an equilateral triangle distribution along the cross section of the outer pipe body 1. The equilateral triangle layout makes the cross-sectional area of the three-pipe integration minimum, provides a stable channel for the independent expansion and contraction of the pipes of the working section 2, and avoids interference between the pipes during movement.

[0026] The working section 2 slides inside the slide 11 provided in the outer tube body 1, which is an execution component for realizing the flushing and suction functions, and includes a flushing pipe 21, a first suction pipe 22, and a second suction pipe 23, which are also arranged in an equilateral triangle and correspond to the slide 11 inside the outer tube body 1. Among them, the diameter of the flushing pipe 21 is 1 mm, which is used to transport physiological saline, antibiotic solution and other flushing liquids to realize the cleaning of the surgical field; the diameter of the first suction pipe 22 is 2 mm, which is mainly used to suck a small amount of blood, tissue debris and the like generated during the operation, and is suitable for fine suction of small lesions and venous bleeding; the diameter of the second suction pipe 23 is 3 mm, which is mainly used to suck a large amount of effusion or a large volume of tissue residue, and is suitable for large volume lesion removal and efficient suction of active arterial bleeding, meeting the suction needs in different surgical scenarios. The front ends of the three pipes are made of medical stainless steel and are polished to avoid damaging the brain tissue.

[0027] The operation section 3 is connected to the rear end of the outer tube body 1, which is used to control the extension and locking of the pipes of the working section 2, and includes a handle sleeve 31, an adjusting mechanism 32, an outer telescopic pipe 33, an adjusting pipe 34, a plurality of first elastic members 35, and a quick connector 36.

[0028] Specifically, the handle sleeve 31 is fixedly sleeved outside the outer tube body 1, which is convenient for the doctor to hold and operate, and three adjusting grooves 311 extending in the axial direction are formed in the side wall of the handle sleeve 31, which correspond to the flushing pipe 21, the first suction pipe 22 and the second suction pipe 23 of the working section 2 respectively, and three communication grooves 12 extending in the axial direction are also formed in the relative position of the outer tube body 1.

[0029] The adjusting mechanism 32 is provided inside the handle sleeve 31, that is, it is fixedly connected with the flushing pipe 21, the first suction pipe 22 and the second suction pipe 23 of the working section 2 through the communication grooves 12 and the adjusting grooves 311, and is used to adjust the extension of the pipes. The adjusting mechanism 32 includes a plurality of push heads 321, a plurality of locking heads 322 and a plurality of unlocking heads 323.

[0030] Among them, the push head 321 is provided with three, one-to-one corresponding to the three pipes, and the push head 321 is slidably provided in the communication grooves 12 and the adjusting grooves 311, one end of which is fixedly connected with the outer wall of each pipe of the working section 2, and the other end extends to the outside of the communication grooves 12, so that the doctor can move the push head 321 along the adjusting grooves 311 by pushing, thereby driving the corresponding pipe to extend along the slide 11 of the outer tube body 1.

[0031] As shown in Figure 6 The locking head 322 is made of metal and is arranged on the side of the push head 321 close to the outer tube body 1, and the inside is provided with an elastic buckle. When the push head 321 pushes the pipe to the preset position, the elastic buckle can be clamped with the unlocking head 323, so as to realize the locking positioning of the pipe and prevent the pipe from moving by itself during the operation.

[0032] like Figure 7 As shown, the unlocking head 323 is made of metal and is inserted into the handle sleeve 31 on the side away from the locking head 322. It also has elastic elements on both sides inside, and its hemispherical bottom can connect with the elastic latch of the locking head 322. When the doctor presses the unlocking head 323, it can drive the elastic latch to release, allowing the tubing to reset. It should be noted that both the locking head 322 and the unlocking head 323 have springs inside, thus enabling them to lock and reset each other. This is existing technology and will not be discussed further here.

[0033] The outer telescopic tube 33 is a corrugated tube, which is sleeved on the part of the working section 2 that extends out of the tail end of the outer tube body 1. Its length can change synchronously with the extension and retraction of the working section 2. It is worth noting that the part of the outer telescopic tube 33 connected to the outer tube body 1 is made of rigid material. The connection method between the outer telescopic tube 33 and the outer tube body 1 can be adhesive. Here, in order to facilitate the easy connection and disconnection of the handle sleeve 31 and the outer telescopic tube 33, a quick-connect connector 36 is provided at the connection between the outer telescopic tube 33 and the handle sleeve 31. The quick-connect connector 36 adopts the QZB275 stainless steel quick connector of Parite Manufacturing Co., Ltd., and its model is Q / ZB275-*SP. Specifically, the quick-connect connector 36 includes a male connector and a female connector that are compatible with each other. The male connector is located at the end of the handle sleeve 31 near the outer telescopic tube 33, and the female connector is located at the end of the outer telescopic tube 33 near the outer tube body 1.

[0034] When assembly is required, the female connector is aligned with the male connector and pressed axially to achieve a quick connection between the handle sleeve 31, the outer telescopic tube 33, and the outer tube body 1. After connection, the mating surfaces have good sealing performance, which can prevent leakage of irrigation fluid during surgery. When disassembly is required, pressing the elastic claw on the male connector can release the locking state of the female connector and the male connector, and achieve quick separation of the handle sleeve 31 and the outer telescopic tube 33. This facilitates the disassembly, cleaning, and high-temperature and high-pressure sterilization of each component after surgery, meeting the relevant requirements of hospital infection control.

[0035] The regulating tube 34 is fixedly installed at the rear end of the outer telescopic tube 33, and the fixing method can be adhesive bonding. The inside of the regulating tube 34 abuts against the tail end of the working section 2. Three first elastic elements 35 are provided, which are respectively sleeved on the outside of the flushing tube 21, the first suction tube 22, and the second suction tube 23. One end is fixedly connected to the tail end of the outer tube body 1, and the other end is fixedly connected to the regulating tube 34. When the unlocking head 323 is unlocked, the first elastic elements 35 can pull the various pipes of the working section 2 back to their original positions through their own elastic force.

[0036] Furthermore, the connecting section 4 is located at the rear end of the operating section 3 and is sealed to the rear end of the working section. It is used to connect the external flushing pump and the suction device to realize the delivery and regulation of the medium. It includes a connecting pipe 41, an interface pipe 42, an inner telescopic pipe 43, and a flow regulating valve 44.

[0037] Specifically, the connecting pipe 41 is connected to the rear end of the adjusting pipe 34 by screwing, a passage corresponding to each pipe is formed in the middle of the connecting pipe 41, and the three interface pipes 42 are respectively rotatably arranged in the interior of the connecting pipe 41 through bearings. The interface pipes 42 can only rotate relative to the connecting pipe 41 and cannot move axially relative to the connecting pipe 41. The three interface pipes 42 are respectively and correspondingly arranged with the flushing pipe 21, the first suction pipe 22 and the second suction pipe 23. Preferably, the end of each interface pipe 42 can be provided with a standard luer connector, which can be quickly connected with an external flushing pump and a suction device, so as to quickly establish a stable flushing and suction passage during the operation and not interfere with each other.

[0038] The inner telescopic pipes 43 are provided with three corrugated pipes, one end of each of which is fixedly connected with the tail end of each pipe of the working section 2 through sealing glue, and the other end is sealingly connected with the inner wall of the interface pipe 42 through sealing glue, and can synchronously expand and contract with the expansion and contraction of the working section 2, so as to ensure the sealing of the pipe connection and avoid leakage of flushing liquid or suction material.

[0039] The flow regulating valves 44 are also provided with three, which are respectively arranged in the relative position of the interface pipe 42 relative to the inner telescopic pipe 43 through screwing. The end of the flow regulating valve 44 located in the interior of the interface pipe 42 abuts against the outer side wall of the inner telescopic pipe 43. The flow regulating valve 44 adopts a knob type structure. The doctor can change the inner diameter of the inner telescopic pipe 43 by rotating the flow regulating valve 44, so as to adjust the flow rate of the flushing liquid or the suction degree, so as to meet the needs of different operation steps, for example, the flushing flow rate can be reduced during fine operation, so as to avoid excessive impact of the flushing liquid on the brain tissue.

[0040] It is worth noting that the flushing pipe 21, the first suction pipe 22 and the second suction pipe 23 of the embodiment can be independently extended, combined and extended, and synchronously extended according to actual needs, and the pipe movement in each mode does not interfere with each other.

[0041] Application Example: This embodiment takes intracranial anterior communicating artery aneurysm clipping as an example. The operation needs to accurately separate the aneurysm and place the aneurysm clip in the narrow intracranial space, and the clarity of the operation field and the stability of the operation are extremely high. The multi-pipe diameter flushing device for neurosurgery described in the application can assist the operation throughout the process, effectively reduce the intraoperative risk and improve the operation efficiency by virtue of independent control, accurate adjustment and minimally invasive adaptability of multiple pipes. The steps are as follows: 1. Preoperative preparation Preoperative according to the hospital infection control standard, the device parts are sterilized under the condition of high temperature and high pressure sterilization 134℃, 0.2MPa for 5 minutes, after sterilization, the handle sleeve 31 is quickly connected with the outer telescopic pipe 33 through the quick connector 36, then the three interface pipes 42 of the connecting section 4 are respectively connected with the external equipment through the luer connector at the end: the flushing pipe 21 is connected with the physiological saline flushing pump containing gentamicin, the initial pressure is 0.1MPa, the first suction pipe 22 is connected with the low negative pressure aspirator, the initial negative pressure is-0.02MPa, the second suction pipe 23 is connected with the high negative pressure aspirator, the initial negative pressure is-0.05MPa, and the air in the pipeline is discharged through the rotary flow regulating valve 44 to avoid the risk of air embolism during operation.

[0042] 2. Single pipeline independent extension mode When there is only local trace bleeding in the operation area, and no synchronous flushing is needed, the single pipeline independent extension mode is adopted, and the first suction pipe 22 or the second suction pipe 23 can be controlled to extend alone. In this process, the inner telescopic pipe 43 moves with the pipeline, and the outer telescopic pipe 33 remains fixed. Taking the single extension of the first suction pipe 22 as an example, the specific operation process is as follows: The doctor only needs to push the first suction pipe corresponding to the push head 321, which moves along the exclusive adjusting groove 311 and the slide 11, and drives the first suction pipe to extend to the front end of the outer pipe body 1 to the preset length, and the locking head 322 is engaged with the unlocking head 323 corresponding to it to complete the locking; at the same time, the inner telescopic pipe 43 connected to the tail end of the first suction pipe 22 is stretched synchronously with the extension of the pipeline, and the outer telescopic pipe 33 remains the initial length unchanged.

[0043] 3. Any two pipeline combination extension mode When there is persistent bleeding in the operation area, and flushing and suction are needed to be coordinated or double suction is needed to be strengthened, any two pipelines can be combined to extend. In this process, only the inner telescopic pipes 43 corresponding to the two pipelines involved in the extension move synchronously, and the outer telescopic pipe 33 remains fixed. Taking the combination extension of the flushing pipe 21 and the first suction pipe 22 as an example, the specific operation process is as follows: As in step 2, the two pipelines extend along their respective slides to form a cooperative working end, the flushing pipe 21 transports low-flow flushing liquid to dilute the bleeding, and the first suction pipe 22 synchronously absorbs it, which meets the dual needs of clear vision and tissue protection when separating.

[0044] 4. Three pipeline synchronous extension mode When there is a large amount of mixed bleeding in the operation area, and flushing and double suction are needed to be coordinated, the three pipeline synchronous extension mode is adopted. In this process, the outer telescopic pipe 33 moves with the whole pipeline, and the inner telescopic pipe 43 remains fixed. The specific operation is as follows: The handle sleeve 31 is held, and the handle sleeve 31 and the outer tube body 1 are slowly pulled back along the axial direction of the outer tube body 1. Since the outer telescopic tube 33 is a bellows structure, the outer telescopic tube 33 is contracted when pulled back. The abutting force between the rear end of the working section 2 and the adjusting tube 34 makes the flushing tube 21, the first suction tube 22 and the second suction tube 23 extend forward along the respective slides 11 and be locked. At this time, the inner telescopic tube 43 does not need to be stretched or contracted, and keeps the initial length unchanged.

[0045] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A neurosurgical intraoperative multi-tube diameter irrigation device, characterized by, The utility model relates to a medical instrument, including: An outer tube body (1) is internally provided with a plurality of slideways (11) for the telescopic movement of pipelines; A working section (2) is slidably arranged in the inner portion of the outer tube body (1) and comprises a flushing pipe (21), a first suction pipe (22) and a second suction pipe (23); An operation section (3) is arranged at the rear end of the outer tube body (1) and is in one-to-one transmission connection with the rear end of the working section (2) and is configured to drive the pipelines of the working section (2) to independently or combinedly telescope along the corresponding slideways (11) of the outer tube body (1); A connecting section (4) is arranged at the rear end of the operation section (3) and is in one-to-one sealing connection with the rear end of the working section (2) and is configured to connect external instruments to realize the flushing and suction functions.

2. A neurosurgical intraoperative multiple tube diameter irrigation device according to claim 1, characterized in that, The operation section (3) comprises: A handle sleeve (31) is sleeved on the outer side of the outer tube body (1) and is provided with an adjusting groove (311) on the handle sleeve (31); An adjusting mechanism (32) is arranged in the inner portion of the handle sleeve (31); An outer telescopic pipe (33) is sleeved on the portion of the working section (2) that extends out of the tail end of the outer tube body (1); An adjusting pipe (34) is arranged at the rear end of the outer telescopic pipe (33) and abuts against the tail end of the working section (2); A plurality of first elastic members (35) are sleeved on the outer sides of the pipelines of the working section (2).

3. A neurosurgical intraoperative multiple tube diameter irrigation device according to claim 2, wherein, The adjusting mechanism (32) comprises: A plurality of push heads (321) are slidably arranged in the adjusting groove (311) of the handle sleeve (31) and are in one-to-one connection with the pipelines of the working section (2) and are configured to push the corresponding pipelines to extend along the slideways (11) of the outer tube body (1); A plurality of locking heads (322) are arranged on one side of the push heads (321) and are configured to lock and position the pipelines when the push heads (321) push the pipelines to the preset positions; A plurality of unlocking heads (323) are arranged on the outer side of the handle sleeve (31) and are in one-to-one connection with the locking heads (322) and are configured to drive the locking heads (322) to unlock and reset the pipelines.

4. A neurosurgical intraoperative multiple tube diameter irrigation device according to claim 3, wherein, The connecting section (4) comprises: A connecting pipe (41) is threadedly connected to the rear end of the adjusting pipe (34); A plurality of interface pipes (42) are arranged in the inner portion of the connecting pipe (41) and are in one-to-one connection with the pipelines of the working section (2); A plurality of inner telescopic pipes (43) are in one-to-one connection with the pipelines of the working section (2) at one end and are connected to the interface pipes (42) at the other end; A plurality of flow regulating valves (44) are arranged in the inner portion of the interface pipes (42) and abut against the outer sidewalls of the inner telescopic pipes (43).

5. A neurosurgical intraoperative multiple tube diameter irrigation device according to claim 4, characterized in that: The flushing pipe (21), the first suction pipe (22) and the second suction pipe (23) are arranged in an equilateral triangle shape.

6. A multiple tube diameter irrigation device for use in neurosurgery according to claim 5, characterized in that: The incircle diameter of the outer tube body (1) is 6 mm and the length is 260 mm.

7. A multiple tube diameter irrigation device for use in neurosurgery according to claim 6, characterized in that: The handle sleeve (31) is detachably connected to the outer telescopic pipe (33) through a quick connector (36).

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