A multifunctional flushing and suction device and its use method

Abstract

The present invention discloses a multifunctional flushing and suction device and a method for using the same, which relates to the technical field of medical devices, and includes a handle; an external pipeline mechanism, which is arranged inside the handle and is respectively connected to an external flushing device and a negative pressure device, and is used to switch between flushing operations and suction operations; a flushing and suction tube, one end of which is installed on the handle, and one end of which is connected to the handle and is connected to the external pipeline mechanism, and flushes and suctions a designated position through the drive of the external pipeline mechanism and the flushing and suction tube; an outer sleeve, which is slidably sleeved on the flushing and suction tube, one end of which is installed on the handle through a first telescopic mechanism, and the other end of which has a screen portion. The present invention can use the flushing and suction tube to achieve full-effect suction of liquid, and can also extend the outer sleeve screen portion when needed to achieve the effect of preventing blockage during suction.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multifunctional flushing and aspirating device and a method for using the same. Background Art

[0002] Aspirators (or flushers / aspirators) are widely used in surgical operations and are essential instruments for the smooth implementation of operations. However, existing aspirators (or flushers / aspirators) have a single function, which is only a simple suction (or flushing + suction) function. When other operations (such as tissue separation, hemostasis, coagulation, etc.) need to be performed at the same time, other instruments need to be replaced, which leads to frequent instrument replacement during surgery. Especially in laparoscopic (minimally invasive) surgery, frequent instrument replacement will greatly reduce the efficiency of the operation, or cause chaos in the operation, or even mistakes in the rush, leading to unnecessary complications.

[0003] Moreover, the current irrigator / aspirator used in laparoscopic (minimally invasive) surgery is in the form of a single tube, with only 1-2 side holes on the side wall of its front end (mouth end). Suction is performed through the mouth end and the side holes. During the suction process, the mouth end and the side holes are extremely easy to be blocked by the greater omentum, tissue blocks, blood clots, necrotic tissue, foreign bodies in the body (such as stones), etc., resulting in failure of the suction function. To avoid this dilemma, the current common solution is to connect a small section of a mesh-like outer tube sleeve to the front end (mouth end) of the irrigator / aspirator, so that its front section is double-tube (i.e., double-tube). Since there are many pores on the wall of the outer tube, it is not easy to be blocked during the suction process. However, the disadvantage of this is that the suction efficiency (i.e., the speed of suctioning liquid) of the double tube is not as good as that of the single tube; especially when encountering relatively large bleeding during the operation, due to the slow suction speed, it often leads to blurred vision, increased difficulty of surgery, and even surgical complications.

[0004] It can be seen that the existing aspirators (or flushing / aspirators) have two main disadvantages:

[0005] 1. Single function. When other operations (such as tissue separation, hemostasis, coagulation, etc.) need to be performed at the same time, the instrument needs to be replaced separately, which affects the efficiency of the operation;

[0006] 2. The current irrigators / aspirators used in laparoscopic (minimally invasive) surgery are single-tube, and their front end (mouth end) is extremely easy to be blocked by the greater omentum, tissue blocks, blood clots, necrotic tissue, foreign bodies (such as stones), etc., resulting in suction failure. If the front end (mouth end) is made into a fixed double-tube (double-cannula), it is easy to reduce the suction efficiency and cannot meet the surgical requirements. Summary of the invention

[0007] The purpose of the present invention is to provide a multifunctional irrigation and aspiration device and a method for using the same, which solves the problem that the current irrigation and aspiration devices used in laparoscopic (minimally invasive) surgery are single-tube-shaped, and the front end (mouth end) thereof is extremely easy to be blocked by the greater omentum, tissue mass, blood clot, necrotic tissue, foreign matter in the body (such as stones), thereby causing aspiration failure. If the front end (mouth end) thereof is made into a fixed double-tube (double-tube), it is easy to cause aspiration efficiency to be reduced and fail to meet the surgical requirements.

[0008] The present invention solves the above technical problems through the following technical solutions, which include:

[0009] handle;

[0010] An external pipeline mechanism is arranged inside the handle and is connected to an external flushing device and a negative pressure device respectively, and is used to switch between flushing operation and suction operation;

[0011] A flushing and suction tube, one end of which is mounted on the handle, and one end of which is connected to the handle is connected to an external pipeline mechanism, and the flushing and suction tube is driven by the external pipeline mechanism to flush and suction the designated position;

[0012] An outer sleeve, which is slidably mounted on the flushing and suction tube, one end of the outer sleeve is installed on the handle through a first telescopic mechanism, and the other end has a screen part, the first telescopic mechanism is used to drive the outer sleeve to move along its axial direction to drive the screen part to cover or open the suction part of the flushing and suction tube, thereby realizing the alternation of two liquid suction modes: filtering suction by the screen part and full-speed suction by the flushing and suction tube, so as to achieve free switching between anti-blocking suction and full-effect suction.

[0013] Preferably, the first telescopic mechanism includes a fixed tube and a movable tube, the fixed tube is fixed to the handle, the flushing and suction tube is passed through the inner cavity of the fixed tube, the movable tube is sleeved on the fixed tube, and one end of the outer sleeve is fixedly connected to the movable tube; the outer surface of the fixed tube is provided with a spiral protrusion, the movable tube is provided with a spiral groove, and the spiral groove is matched and connected with the spiral protrusion, and when the movable tube rotates, the outer sleeve and the screen part are driven to move axially along the flushing and suction tube.

[0014] Preferably, the first telescopic mechanism also includes a rotating wheel rotatably mounted on the handle, and the rotating wheel is sleeved on the movable tube, a protrusion is provided on the outer wall of the movable tube, and a linear groove is provided on the inner wall of the center hole of the rotating wheel, and the protrusion is slidably connected in the linear groove to enable the rotating wheel to drive the movable tube to rotate.

[0015] Preferably, the first telescopic mechanism includes a motor arranged inside the handle, a screw is installed at the output end of the motor, and the screw is arranged parallel to the outer sleeve, a movable sleeve is threadedly connected to the screw, the end of the outer sleeve is fixedly connected to the movable sleeve, the movable sleeve is slidably installed inside the handle, and a driving button for controlling the operation of the motor is installed on the handle.

[0016] Preferably, the handle is equipped with a battery, and a protective cover installed on the handle is provided on the outside of the battery. The battery, the drive button and the motor form a control circuit to control the operation of the motor.

[0017] Preferably, the end of the screen portion is provided with a sealing structure for sealing its port.

[0018] Preferably, the sealing structure comprises a plurality of planar valves distributed in an annular manner, and the plurality of planar valves constitute a planar structure for sealing the port of the screen portion.

[0019] Preferably, the sealing structure comprises a plurality of annularly distributed forward-convex valves, and the plurality of annularly distributed forward-convex valves form a semi-elliptical structure for sealing the port of the screen portion.

[0020] Preferably, the irrigation and suction tube is provided with an electrode rod, the handle is provided with an electrode external terminal and an electrode switch, and the electrode external terminal, the electrode switch and the electrode rod are electrically connected in sequence, the electrode rod is distributed axially along the irrigation and suction tube, one end of the electrode rod is installed on the handle through a second telescopic mechanism, and the other end has an electrode head, and the electrode head is controlled to extend or retract into the outer sleeve through the second telescopic mechanism.

[0021] Preferably, the second telescopic mechanism includes a connecting rod slidably arranged on the handle, the sliding trajectory of the connecting rod is parallel to the flushing and suction tube, one end of the electrode rod passes through the external pipeline mechanism and is connected to the connecting rod, one end of the connecting rod extends out of the handle and is fixed with an ejection button, and the other end is installed with a first return spring, the first return spring provides the connecting rod with a force to move toward the outside of the handle, and a locking assembly is arranged in the handle, which is used to fix the connecting rod when the connecting rod moves inward to the limit stroke.

[0022] Preferably, the locking assembly includes an inner locking ring slidably arranged inside the handle, the locking ring is sleeved on the connecting rod, the sliding direction of the locking ring is perpendicular to the sliding direction of the connecting rod, a reset button and a second reset spring are respectively arranged on both sides of the sliding direction of the locking ring, and a slot is opened on the connecting rod.

[0023] Preferably, one end of the flushing and suction tube is fixedly connected to the handle and fixedly communicated with an external pipeline mechanism, and the electrode rod is slidably disposed inside the flushing and suction tube.

[0024] Preferably, the electrode head is in the shape of a hook, a spherical part, a sheet, a needle, a bean or a shovel.

[0025] Preferably, one end of the irrigation and suction tube is slidably connected to the handle and is slidably connected to the external pipe mechanism, the electrode rod is fixedly connected to the irrigation and suction tube, and the second telescopic mechanism is used to drive the irrigation and suction tube to move along its axial direction, the electrode head is an electrode sheet connected to the end of the irrigation and suction tube by flipping the rotating shaft, the electrode sheet has a storage state parallel to the irrigation and suction tube and a working state perpendicular to the irrigation and suction tube, and the irrigation and suction tube is in the storage state when it is retracted into the outer sleeve, and is in the working state when it is extended out of the outer sleeve; a flipping drive mechanism is commonly provided between the irrigation and suction tube and the outer sleeve, and the flipping drive mechanism is used to switch the state of the electrode sheet.

[0026] Preferably, the flip driving mechanism comprises a traction bar fixed to one side of the flushing and suction tube, the traction bar bypasses the rotating shaft and extends to the other side of the flushing and suction tube and is fixed with an elastic bar, one end of the elastic bar away from the traction bar is fixed to the flushing and suction tube, the elastic bar applies tension to the traction bar, a gear is fixed on the rotating shaft, and the traction bar has a soft rack meshing with the gear;

[0027] The handle is fixed to an outer tube through a bracket and sleeved on the outer tube. The outer tube is provided with two symmetrically arranged long waist holes, one of which is provided with a first stopper fixed to the inner wall of the outer tube and a first limiting block fixed to the traction strip, and the other is provided with a second stopper fixed to the inner wall of the outer tube and a second limiting block fixed to the connection between the elastic strip and the traction strip, and the distance between the first limiting block and the first stopper is smaller than the distance between the second limiting block and the second stopper.

[0028] Preferably, the external pipeline mechanism includes a water flow / air flow three-way joint arranged inside the handle, the water flow / air flow three-way joint is connected to the flushing suction tube, the water flow / air flow three-way joint is connected to the negative pressure suction inner tube and the external water flow inner tube, and the negative pressure suction inner tube and the external water flow inner tube are respectively connected to the external negative pressure device and the flushing device, the negative pressure suction inner tube and the external water flow inner tube are respectively provided with a negative pressure suction button and a water flow flushing button to respectively control the operation of the negative pressure device and the flushing device.

[0029] The present invention also provides a method for using the multifunctional flushing aspirator, which comprises the following steps:

[0030] Step 1: Extending the electrode sheet out of the outer sleeve: Extending the flushing and suction tube outward along the outer sleeve by a first process through the second telescopic mechanism until the electrode sheet extends out of the outer sleeve, and at this time, the first limiting block abuts against the first stopper;

[0031] Step 2, the electrode sheet is flipped to the working state: the second telescopic mechanism is used to extend the irrigation and suction tube to the outside along the outer sleeve for the second process. Since the first limiting block is blocked by the first stopper, the end of the traction strip close to the first limiting block will be restricted. With the displacement of the irrigation and suction tube, the soft rack will be pulled to the side of the first limiting block. In cooperation with the gear, the electrode sheet is driven to flip until the electrode sheet is flipped to the working state. At this time, the second limiting block is pressed against the second stopper, and the elastic strip will be stretched in the process.

[0032] Step 3: The electrode sheet is flipped to the storage state: the irrigation and suction tube is retracted inwardly along the outer sleeve by the second telescopic mechanism for the first process, and the elastic strip gradually restores the soft rack to its original state, and drives the electrode sheet to flip in cooperation with the gear until the electrode sheet is flipped to the storage state;

[0033] Step 4: The electrode sheet is stored in the outer sleeve: the irrigation and suction tube is retracted inwardly along the outer sleeve by the second telescopic mechanism until the electrode sheet is retracted into the inner part of the outer sleeve.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. The present invention sets an outer sleeve on the flushing and suction tube to form a double sleeve structure. The outer sleeve can be driven to move along the flushing and suction tube through the first telescopic mechanism. When a greater suction effect is required (such as when there is a lot of bleeding), the outer sleeve can be retracted backwards through the first telescopic mechanism so that the suction hole is completely exposed at the front end. At this time, the full suction efficiency of the suction hole can be fully exerted; when it is necessary to avoid the greater omentum, tissue blocks, blood clots, necrotic tissues, and foreign bodies in the body (such as stones) blocking the suction hole, the outer sleeve can be pushed forward through the first telescopic mechanism so that the screen part at the front end of the outer sleeve covers the suction hole. The screen part can block the surrounding greater omentum and other tissues or foreign bodies to avoid suction blockage. It can be seen that the present invention can extend the screen part of the outer sleeve when necessary to prevent blockage during suction while using the flushing and suction tube to achieve full-effect suction of liquid.

[0036] 2. The flat and convex valves at the front end of the outer sleeve screen can not only better prevent blockage, but also avoid damage to human tissue during operation.

[0037] 3. The present invention also provides an electrode rod that passes through the flushing and suction tube, and other additional auxiliary functions can be performed through the electrode head of the electrode rod, such as: hemostasis / coagulation function, tissue cutting and separation function.

[0038] 4. The present invention can also set the electrode rod as a retractable structure through the second retractable mechanism. When the electrode rod is retracted, it can better avoid affecting the use of the flushing and suction functions of the flushing and suction device; when the electrode rod is extended, the electrode head function can be better used. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment;

[0040] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the handle in the first embodiment from a first viewing angle;

[0041] Figure 3 This is a schematic diagram of the cross-sectional structure of the handle in the first embodiment;

[0042] Figure 4 It is a schematic diagram of the explosion structure of the first telescopic mechanism in the first embodiment;

[0043] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the handle in the first embodiment from a second viewing angle;

[0044] Figure 6 It is a schematic diagram of the explosion structure of the second telescopic mechanism in the first embodiment;

[0045] Figure 7 It is a structural schematic diagram of the first form of the sealing structure;

[0046] Figure 8 It is a structural schematic diagram of the second form of the sealing structure;

[0047] Fig. 9 It is a schematic diagram of the structure of the spherical structure electrode head;

[0048] Fig.10 It is a schematic diagram of the three-dimensional structure of the second embodiment;

[0049] Fig.11 It is a structural schematic diagram of the first telescopic mechanism in the second embodiment;

[0050] Fig.12 It is a schematic diagram of the three-dimensional structure of the third embodiment;

[0051] Fig.13 It is a schematic diagram of the explosion structure of the outer sleeve and the flushing and suction tube in the third embodiment;

[0052] Fig.14 for Fig.13 The enlarged structural diagram at A in the middle;

[0053] Fig.15 Schematic diagram of the cross-sectional structure of the outer sleeve and the flushing and suction tube in the third embodiment;

[0054] Fig.16 for Fig.15 Enlarged structural diagram at B in the middle.

[0055] The numbers in the figure represent:

[0056] 1-Handle;

[0057] 2-first telescopic mechanism; 21-fixed tube; 22-movable tube; 23-rotating wheel; 24-bump; 25-linear groove; 26-limiting ring; 27-annular groove; 28-spiral protrusion; 29-motor; 210-screw; 211-movable sleeve; 212-battery; 213-protective cover; 214-driving button;

[0058] 3-outer sleeve; 31-screen part; 32-sealing structure;

[0059] 4- flushing suction tube; 41- suction hole;

[0060] 5-electrode rod; 51-electrode head; 52-electrode switch; 53-electrode external terminal;

[0061] 6-second telescopic mechanism; 61-connecting rod; 62-ejection button; 63-first return spring; 64-locking assembly 64; 641-reset button; 642-slot; 643-locking ring; 644-second return spring;

[0062] 7-external pipeline mechanism; 71-water flow flushing button; 72-negative pressure suction button; 73-water flow / air flow three-way connector; 731-rubber sealing block; 74-negative pressure suction inner tube; 75-external water flow inner tube;

[0063] 8- flip driving mechanism; 81- outer tube; 82- first stopper; 83- long waist hole; 84- first limiting block; 85- second limiting block; 86- traction bar; 87- elastic bar; 88- second stopper; 89- soft rack; 810- gear. DETAILED DESCRIPTION

[0064] Embodiment 1

[0065] like Figures 1 to 8 As shown, the multifunctional irrigation and suction device of the first embodiment includes a handle 1 and an electrode rod 5 arranged on the handle 1, an outer sleeve 3, an irrigation and suction tube 4, a first telescopic mechanism 2, a second telescopic mechanism 6 and an external pipeline mechanism 7.

[0066] The irrigation and suction tube 4 is arranged at the front end of the handle 1. In this embodiment, the irrigation and suction tube 4 is fixedly connected to the handle 1. The irrigation and suction device is inserted into the surgical site through the irrigation and suction tube 4 to irrigate and absorb the liquid. The front end (mouth end) and the side of the irrigation and suction tube 4 are provided with a suction hole 41, which is the suction part. The liquid is absorbed through the mouth end and the suction hole 41. The suction hole 41 can be circular or polygonal.

[0067] The outer sleeve 3 is slidably mounted on the irrigation and suction tube 4. A screen portion 31 is provided at the front end of the outer sleeve 3. The screen portion 31 is formed by a plurality of mesh holes provided on the outer sleeve 3, or can be a cylindrical screen fixed at the front end of the outer sleeve 3. The screen portion 31 is used to separate the soft tissue in the flowing liquid to prevent the greater omentum, tissue blocks, blood clots, necrotic tissue, and foreign matter in the body (such as stones) from being sucked into the irrigation and suction tube 4 and causing it to be blocked.

[0068] A sealing structure 32 is provided at the front end of the screen portion 31, which has two forms. In the first form, the sealing structure 32 includes a plurality of planar flaps, and the plurality of planar flaps are distributed in an annular manner (such as Figure 7 As shown in the figure, a plurality of planar flaps are arranged in an annular shape to form a planar structure for blocking the port of the screen portion 31; the second form: the sealing structure 32 includes a plurality of convex flaps, and the plurality of convex flaps are arranged in an annular shape (as shown in the figure). Figure 8 As shown), a plurality of forward convex valves are distributed in an annular shape to form a semi-elliptical structure that blocks the port of the screen portion 31; when not affected by external forces, the sealing structure 32 blocks the front port of the screen portion 31, and when the electrode rod 5 or the flushing and suction tube 4 extends from the front end of the outer sleeve 3, the sealing structure 32 can be stretched open to ensure that the electrode rod 5 or the flushing and suction tube 4 extends smoothly, and when the electrode rod 5 or the flushing and suction tube 4 retracts into the outer sleeve 3, the sealing structure 32 will restore to its original state due to its own elasticity, and the port of the screen portion 31 can be sealed.

[0069] The rear end of the outer sleeve 3 is connected to the handle 1 through the first telescopic mechanism 2. When in use, the first telescopic mechanism 2 can drive the outer sleeve 3 to move forward along the flushing and suction tube 4, so that the screen part 31 covers the suction hole 41. At this time, the screen part 31 can be used for barrier filtration to avoid clogging of the suction hole 41; the outer sleeve 3 can also be driven to retract backward to expose the suction hole 41. At this time, the full suction efficiency of the suction hole 41 can be fully exerted.

[0070] The first telescopic mechanism 2 of this embodiment is manually driven. The specific structure of the first telescopic mechanism 2 is as follows: it includes a fixed tube 21, a movable tube 22 and a rotating wheel 23. The fixed tube 21 is fixedly arranged at the front end of the handle 1. The rear end of the irrigation and suction tube 4 is inserted into the inner cavity of the fixed tube 21. The outer surface of the fixed tube 21 is provided with a spiral protrusion 28. The movable tube 22 is sleeved on the fixed tube 21. The movable tube 22 is provided with a spiral slide. The spiral slide is matched with the spiral protrusion 28. The movable tube 22 can be rotated to make the movable tube 22 move forward and backward along the fixed tube 21 (i.e., the axis direction of the fixed tube 21). The pitch of the spiral slide and the spiral protrusion 28 of this embodiment is large, so that the forward and backward adjustment speed of the movable tube 22 is faster. The rear end of the outer sleeve 3 is fixedly connected with the movable tube 22, so that the outer sleeve 3 is driven to move forward and backward through the movable tube 22. The rotating wheel 23 is sleeved on the movable tube 22, and the movable tube 22 is driven to rotate by the rotating wheel 23. The rotating wheel 23 is rotatably connected with the front end of the handle 1, so that the rotating wheel 23 can be operated more conveniently.

[0071] In this embodiment, a projection 24 is provided on the outer wall of the movable tube 22, and a preferred solution is to provide two symmetrical strip projections, and a linear groove 25 is provided on the inner wall of the central hole of the rotating wheel 23, and the linear groove 25 is parallel to the center line of the central hole of the rotating wheel 23, and the projection 24 is slidably connected in the linear groove 25. Through the sliding cooperation between the projection 24 and the linear groove 25, the rotating wheel 23 can drive the movable tube 22 to rotate without affecting the forward and backward movement of the movable tube 22.

[0072] A limiting ring 26 is provided at the rear end of the center hole of the rotating wheel 23 , and an annular groove 27 is provided at the front end of the handle 1 . The limiting ring 26 is slidably connected in the annular groove 27 , so that the rotating wheel 23 can rotate relative to the front end of the handle 1 .

[0073] The electrode rod 5 is inserted into the irrigation and suction tube 4 . In this embodiment, the electrode rod 5 can move axially along the irrigation and suction tube 4 . The front end of the electrode rod 5 is an electrode head 51 , which is located at the front end of the irrigation and suction tube 4 .

[0074] In this embodiment, the electrode head 51 is a hook-shaped portion, which can perform a tissue separation function, or it can be a spherical portion, whose surface is a smooth spherical surface, which can perform a hemostasis / coagulation function; in other embodiments, the electrode head 51 can also be sheet-shaped, needle-shaped, bean-shaped or shovel-shaped.

[0075] The handle 1 is provided with an electrode switch 52 and an electrode external terminal 53. The electrode switch 52 is exposed outside the handle 1, and the electrode external terminal 53 extends to the outside of the handle 1. The electrode external terminal 4 is used to connect with an external electrode. The electrode external terminal 53, the electrode switch 52 and the electrode rod 5 are electrically connected to form a circuit for controlling the operation of the motor rod 5. By operating the electrode switch 52, the connection and disconnection of the electrode rod 5 and the external electrode can be operated.

[0076] The rear end of the electrode rod 5 is connected to the second telescopic mechanism 6; the second telescopic mechanism 6 drives the electrode rod 5 to move axially along the irrigation and suction tube 4, so that the electrode head 51 extends forward from the irrigation and suction tube 4, or retracts backward into the irrigation and suction tube 4.

[0077] The specific structure of the second telescopic mechanism 6 is as follows: it includes a connecting rod 61, a push button 62, a first reset spring 63 and a locking assembly 64. The connecting rod 61 is slidably arranged at the rear end of the handle 1, the rear end of the connecting rod 61 extends out of the handle 1, and the front end thereof is located inside the handle 1. The push button 62 is arranged at the rear end of the connecting rod 61, and the push button 62 is exposed outside the handle 1. The first reset spring 63 is arranged at the front end of the connecting rod 61, and the rear end of the electrode rod 5 is connected to the connecting rod 61. Thus, the electrode rod 5 can be driven to move forward and backward through the connecting rod 61, and the first reset spring 63 provides a backward reset force for the connecting rod 61.

[0078] When it is necessary to push the electrode rod 5 forward, the push-out button 62 can be pressed to push the connecting rod 61 toward the side of the handle 1, and the electrode rod 5 can be pushed forward by the connecting rod 61. When the electrode head 51 of the electrode rod 5 is pushed forward to the working position, the locking assembly 64 can automatically lock the connecting rod 61, and the electrode head 51 of the electrode rod 5 remains in the front. When it is necessary to retract the electrode rod 5 backward, the locking assembly 64 is unlocked, thereby unlocking the electrode rod 5, and the electrode rod 5 will be reset backward under the action of the first reset spring 63.

[0079] The locking assembly 64 of this embodiment includes a reset button 641, a second reset spring 644 and a lock ring 643. The lock ring 643 is slidably disposed in the handle 1 and is sleeved on the connecting rod 61. The sliding direction of the lock ring 643 is perpendicular to the sliding direction of the connecting rod 61. When the electrode rod 5 is in the retracted state, the center hole of the lock ring 643 is concentric with the connecting rod 61. The reset button 641 is connected to one side of the lock ring 643, and the reset button 641 is exposed on the outside of the handle 1, while the second reset spring 644 is disposed on the other side of the lock ring 643. When the reset button 641 is pressed, the second reset spring 644 will be compressed. A slot 642 is provided on the connecting rod 61. When the electrode rod 5 is pushed forward to the working position, the slot 642 will be aligned with the position of the lock ring 643. The lock ring 643 will be inserted into the slot 642 under the action of the second reset spring 644. The connecting rod 61 is locked, and the electrode rod 5 is also locked, and the electrode head 51 remains in the front. When unlocking is required, the reset button 641 is pressed inward to compress the second reset spring 644 until the middle hole of the lock ring 643 is moved to be concentric with the connecting rod 61. At this time, the lock ring 643 is in the reset state, and the connecting rod 61 will move backward and reset under the action of the first reset spring 63, thereby driving the electrode rod 5 to retract backward.

[0080] Furthermore, a limiting slide groove is provided in the handle 1 , and the locking ring 643 is slidably arranged in the limiting slide groove to ensure the stability of the locking ring 643 .

[0081] The external pipeline mechanism 7 is used for operating operations and is arranged on the handle 1. It includes a negative pressure suction inner tube 74, an external water flow inner tube 75 and a water flow / air flow three-way joint 73. The handle 1 includes a left shell and a right shell that are interlocked together. The negative pressure suction inner tube 74 is used to connect to an external negative pressure device to generate suction. The external water flow inner tube 75 is used to connect to an external flushing device to generate water flow required for flushing. The negative pressure suction inner tube 74 and the external water flow inner tube 75 are both connected to the water flow / air flow three-way joint 73, and the water flow / air flow three-way joint 73 is connected to the flushing suction tube 4. The negative pressure suction inner tube 74 and the external water flow inner tube 75 are respectively provided with a negative pressure suction button 72 and a water flow flushing button 71. The flushing device and the negative pressure device are operated by the water flow flushing button 71 and the negative pressure suction button 72 to realize the flushing and suction functions.

[0082] A rubber sealing block 731 is provided at the rear end of the water / air flow three-way joint 73, and the electrode rod 5 slides through the rubber sealing block 731. The squeezing force of the rubber sealing block 731 itself can prevent penetration from occurring at the connection between the electrode rod 5 and the rubber sealing block 731.

[0083] When the multifunctional flushing and suction device is in use, the negative pressure suction inner tube 74 and the external water flow inner tube 75 are respectively connected to the corresponding external devices. When the flushing and suction functions need to be performed, the water flow flushing button 71 and the negative pressure suction button 72 are operated; when the electrode rod 5 needs to be used, the push-out button 62 is pressed inward to push the electrode rod 5 forward, and then the electrode switch 5 is operated to connect the external electrode, and the electrode rod 5 can be used at this time; after the electrode rod 5 is used, the reset button 641 is pressed, and the electrode rod 5 will be reset and retracted backward.

[0084] Embodiment 2

[0085] like Fig. 9 and Fig.10As shown, the multifunctional flushing aspirator of the second embodiment is different from the first embodiment in that the first telescopic mechanism 2 of the present embodiment is electrically driven, and specifically includes a motor 29 arranged inside the handle 1, and a screw 210 is installed at the output end of the motor 29, and the screw 210 is arranged parallel to the outer sleeve 3, and a movable sleeve 211 is threadedly connected to the screw 210, and the end of the outer sleeve 3 is fixedly connected to the movable sleeve 211, and the movable sleeve 211 is slidably installed inside the handle 1, and the sliding trajectory of the handle 1 is parallel to the screw 210. In addition, a protective cover 213 and a driving button 214 are detachably installed on the handle 1, and a battery 212 is installed in the protective cover 213, and the driving button 214 extends out of the outside of the handle 1 for easy operation. The battery 212, the driving button 214 and the motor 29 form a control circuit, and the operation of the motor 29 can be controlled by the driving button 214.

[0086] In other embodiments, the battery 212 can be replaced with an external power source, and the driving button 214 is electrically connected to the external power source through wires. The external power source, the driving button 214 and the motor 29 form a control circuit to control the operation of the motor 29.

[0087] When the outer sleeve 3 needs to be moved, the driving button 214 can be pressed to drive the motor 29 to operate, and the motor 29 will drive the screw 210 to rotate, and further drive the movable sleeve 211 and the outer sleeve 3 to move.

[0088] Embodiment 3

[0089] like Figures 12 to 16 As shown, it is a multifunctional flushing and suction device of embodiment 3, which is different from embodiment 1 or embodiment 2 in that: one end of the flushing and suction tube 4 of this embodiment is slidably connected to the handle, and is slidably connected to the water / air flow three-way joint 73 of the external pipeline mechanism 7, the electrode rod 5 is fixedly connected to the flushing and suction tube 4, and if necessary, the connecting rod 61 and the flushing and suction tube 4 can be connected by a connecting rod to ensure the stability of the connection between the two, so that the flushing and suction tube 4 can be driven to move along its axial direction by utilizing the second telescopic mechanism.

[0090] The electrode head 51 of the present embodiment is an electrode sheet connected to the end of the irrigation and suction tube 4 by flipping the rotating shaft. The electrode sheet has a storage state parallel to the irrigation and suction tube 4 and a working state perpendicular to the irrigation and suction tube 4. The irrigation and suction tube 4 is in the storage state when it is retracted into the outer sleeve 3, and is in the working state when it extends out of the outer sleeve 3. The size of the electrode sheet is larger than the hook part in the first embodiment, and can perform a larger area of ​​tissue separation function, thereby increasing the tissue separation efficiency. In the present embodiment, when the electrode sheet is not in use, the electrode sheet can be stored in the outer sleeve 3, thereby not affecting the use of the irrigation and suction functions.

[0091] A flip drive mechanism 8 is provided between the irrigation and suction tube 4 and the outer sleeve 3. The flip drive mechanism 8 is used to switch the state of the electrode sheet for storage and use. The flip drive mechanism 8 includes a traction bar 86 fixed to one side of the irrigation and suction tube 4. The traction bar 86 cannot be stretched. The traction bar 86 bypasses the rotating shaft and extends to the other side of the irrigation and suction tube 4 and is fixed with an elastic bar 87. The elastic bar 87 has a certain elastic property and can be stretched. One end of the elastic bar 87 away from the traction bar 86 is fixed to the irrigation and suction tube 4. The traction bar 86 is in a taut state. Even if it is not stretched, it has a certain pulling force on the traction bar 86. A gear 810 is fixed on the rotating shaft, and the traction bar 86 has a soft rack 89 meshing with the gear 810.

[0092] When the traction bar 86 is displaced, the gear 810 and the flexible rack 89 cooperate to drive the electrode sheet to flip, so that it switches between the working state and the storage state.

[0093] The handle 1 is fixed to an outer tube 81 through a bracket and sleeved on the outer tube 3. The outer tube 3 is provided with two symmetrically arranged long waist holes 83, one of which is provided with a first stopper 82 fixed to the inner wall of the outer tube 81 and a first limiting block 84 fixed to the traction strip 86, and the other is provided with a second stopper 88 fixed to the inner wall of the outer tube 81 and a second limiting block 85 fixed to the connection between the elastic strip 87 and the traction strip 86, and the spacing between the first limiting block 84 and the first stopper 82 is smaller than the spacing between the second limiting block 85 and the second stopper 88.

[0094] When the electrode sheet is needed, the irrigation and suction tube 4 is extended outward along the outer sleeve through the second telescopic mechanism 6. When the electrode sheet extends out of the outer sleeve, the first limiting block 84 abuts against the first stopper 82, and the irrigation and suction tube 4 continues to be extended through the second telescopic mechanism 6. Since the first limiting block 84 is blocked by the first stopper 82, the end of the traction bar 86 close to the first limiting block 84 will be restricted. With the displacement of the irrigation and suction tube 4, the soft rack 89 will be pulled toward the side of the first limiting block 84, and with the cooperation of the second stopper 88, the electrode sheet is driven to flip until the electrode sheet flips to the working state. At this time, the second limiting block 85 is pressed against the second stop block 88, so that the traction bar 86 cannot be pulled to any side, so that the electrode sheet can be fixed, and the elastic bar 87 will be stretched and stored in force during this process; when the electrode sheet needs to be retracted, the irrigation and suction tube is retracted inward along the outer sleeve through the second telescopic mechanism, and the elastic bar 87 gradually restores the soft rack 89 to its original state, and in cooperation with the gear 810, drives the electrode sheet to flip over until the electrode sheet flips to the storage state, and continues to retract the irrigation and suction tube inward along the outer sleeve through the second telescopic mechanism, so that the electrode sheet can be completely retracted into the outer sleeve 3.

[0095] It should be noted that the lengths of the two long waist holes 83 are of a certain length, and when the outer sleeve 3 is driven to displace by the first telescopic mechanism 2, the first stop block 82, the second stop block 88, the first limiting block 84, and the second limiting block 85 will not interfere with the outer sleeve 3; in addition, when the first telescopic mechanism 2 adopts the manual drive in Example 1, the circumferential angle size of the long waist hole 83 is relatively large, and the pitch of the spiral groove and the spiral protrusion 28 are relatively large, and the maximum rotation angle of the rotating wheel 23 is within the circumferential angle size of the long waist hole 83.

[0096] Embodiment 4

[0097] This embodiment is a method for using the multifunctional flushing aspirator based on the third embodiment, comprising the following steps:

[0098] Step 1: Extending the electrode sheet out of the outer sleeve: Extending the irrigation and suction tube outward along the outer sleeve by the second telescopic mechanism for a first process until the electrode sheet extends out of the outer sleeve, at which time the first limiting block 84 abuts against the first stopper 82;

[0099] Step 2, the electrode sheet is turned over to the working state: the second telescopic mechanism is used to extend the irrigation and suction tube outward along the outer sleeve for the second process. Since the first limiting block 84 is blocked by the first stopper 82, the end of the traction bar 86 close to the first limiting block 84 will be restricted. With the displacement of the irrigation and suction tube, the soft rack 89 will be pulled to the side of the first limiting block 84, and the electrode sheet will be turned over in cooperation with the gear 810 until the electrode sheet is turned over to the working state. At this time, the second limiting block 85 is pressed against the second stopper 88, and the elastic strip 87 will be stretched in the process.

[0100] Step 3: The electrode sheet is turned over to the storage state: The irrigation and suction tube is retracted inwardly along the outer sleeve by the second telescopic mechanism for the first process, and the elastic strip 87 gradually restores the soft rack 89 to the original state, and cooperates with the gear 810 to drive the electrode sheet to turn over until the electrode sheet is turned over to the storage state;

[0101] Step 4: The electrode sheet is stored in the outer sleeve: the irrigation and suction tube is retracted inwardly along the outer sleeve by the second telescopic mechanism until the electrode sheet is retracted into the inner part of the outer sleeve.

[0102] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A multifunctional irrigation and suction device, characterized in that: include: handle; An external pipeline mechanism is arranged inside the handle and is connected to an external flushing device and a negative pressure device respectively, and is used to switch between flushing operation and suction operation; A flushing and suction tube, one end of which is mounted on the handle, and one end of which is connected to the handle is connected to an external pipeline mechanism, and the flushing and suction tube is driven by the external pipeline mechanism to flush and suction the designated position; An outer sleeve, the outer sleeve is slidably sleeved on the flushing and suction tube, one end of the outer sleeve is mounted on the handle through a first telescopic mechanism, and the other end has a screen portion, the first telescopic mechanism is used to drive the outer sleeve to move along its axial direction, so as to drive the screen portion to cover or open the suction portion of the flushing and suction tube, so as to realize free switching between two liquid suction modes: filtering suction of the screen portion and full-speed suction of the flushing and suction tube; The irrigation and suction tube is provided with an electrode rod, the handle is provided with an electrode external terminal and an electrode switch, and the electrode external terminal, the electrode switch and the electrode rod are electrically connected in sequence, the electrode rod is distributed along the axial direction of the irrigation and suction tube, and one end of the electrode rod has an electrode head; One end of the irrigation and suction tube is slidably connected to the handle and is slidably connected to the external pipeline mechanism. The electrode rod is fixedly connected to the irrigation and suction tube, and the second telescopic mechanism is used to drive the irrigation and suction tube to move along its axial direction. The electrode head is an electrode sheet connected to the end of the irrigation and suction tube by flipping the rotating shaft. The electrode sheet has a storage state parallel to the irrigation and suction tube and a working state perpendicular to the irrigation and suction tube. The irrigation and suction tube is in the storage state when it is retracted into the outer sleeve, and is in the working state when it is extended out of the outer sleeve. A flipping drive mechanism is commonly provided between the irrigation and suction tube and the outer sleeve, and the flipping drive mechanism is used to switch the state of the electrode sheet. The flip driving mechanism includes a traction bar fixed to one side of the flushing and suction tube, the traction bar bypasses the rotating shaft and extends to the other side of the flushing and suction tube and is fixed with an elastic bar, one end of the elastic bar away from the traction bar is fixed to the flushing and suction tube, the elastic bar gives tension to the traction bar, a gear is fixed on the rotating shaft, and the traction bar has a soft rack meshing with the gear; The handle is fixed to an outer tube through a bracket and sleeved on the outer tube. The outer tube is provided with two symmetrically arranged long waist holes, one of which is provided with a first stopper fixed to the inner wall of the outer tube and a first limiting block fixed to the traction strip, and the other is provided with a second stopper fixed to the inner wall of the outer tube and a second limiting block fixed to the connection between the elastic strip and the traction strip, and the distance between the first limiting block and the first stopper is smaller than the distance between the second limiting block and the second stopper.

2. The multifunctional irrigation and suction device according to claim 1, characterized in that: The first telescopic mechanism includes a fixed tube and a movable tube, the fixed tube is fixed to the handle, the flushing and suction tube is passed through the inner cavity of the fixed tube, the movable tube is sleeved on the fixed tube, and one end of the outer sleeve is fixedly connected to the movable tube; the outer surface of the fixed tube is provided with a spiral protrusion, the movable tube is provided with a spiral groove, and the spiral groove is matched and connected with the spiral protrusion, and when the movable tube rotates, the outer sleeve and the screen part are driven to move axially along the flushing and suction tube.

3. The multifunctional irrigation and suction device according to claim 2, characterized in that: The first telescopic mechanism also includes a rotating wheel rotatably mounted on the handle, and the rotating wheel is sleeved on the movable tube, a protrusion is provided on the outer wall of the movable tube, a linear groove is provided on the inner wall of the center hole of the rotating wheel, and the protrusion is slidably connected in the linear groove to enable the rotating wheel to drive the movable tube to rotate.

4. The multifunctional irrigation and suction device according to claim 1, characterized in that: The first telescopic mechanism includes a motor arranged inside the handle, a screw is installed at the output end of the motor, and the screw is arranged parallel to the outer sleeve, a movable sleeve is threadedly connected to the screw, the end of the outer sleeve is fixedly connected to the movable sleeve, the movable sleeve is slidably installed inside the handle, and a drive button for controlling the operation of the motor is installed on the handle.

5. The multifunctional irrigation and suction device according to claim 4, characterized in that: The handle is equipped with a battery, and a protective cover installed on the handle is arranged on the outside of the battery. The battery, the driving button and the motor form a control circuit to control the operation of the motor.

6. The multifunctional irrigation and suction device according to claim 1, characterized in that: The end of the screen part is provided with a sealing structure for sealing the port thereof.

7. The multifunctional irrigation and suction device according to claim 6, characterized in that: The sealing structure comprises a plurality of planar flaps distributed in an annular manner, and the plurality of planar flaps form a planar structure for sealing the port of the screen portion.

8. The multifunctional irrigation and suction device according to claim 6, characterized in that: The sealing structure comprises a plurality of annularly distributed forward convex valves, which form a semi-elliptical structure for sealing the port of the screen part.

9. The multifunctional irrigation and suction device according to claim 1, characterized in that: The external pipeline mechanism includes a water flow / air flow three-way joint arranged inside the handle, the water flow / air flow three-way joint is connected to the flushing and suction tube, the water flow / air flow three-way joint is connected to the negative pressure suction inner tube and the external water flow inner tube, and the negative pressure suction inner tube and the external water flow inner tube are respectively connected to the external negative pressure device and the flushing device, the negative pressure suction inner tube and the external water flow inner tube are respectively provided with a negative pressure suction button and a water flow flushing button to respectively control the operation of the negative pressure device and the flushing device.

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