Multifunctional laparoscope aspirator

Abstract

The invention relates to the technical field of medical instruments, in particular to a multifunctional laparoscope aspirator which comprises a holding portion and an aspiration tube, the holding portion is fixedly connected with the aspiration tube, the aspiration tube is communicated with a negative pressure pump used for generating negative pressure suction force through a pipeline, and the aspiration tube is further communicated with a compression pump used for pumping flushing fluid through a pipeline. The suction tube comprises a first tube and a second tube, the first tube is communicated with the negative pressure pump through a pipeline, and the second tube is communicated with the compression pump through a pipeline; a clamping mechanism for clamping peripheral tissues is arranged at one end, far away from the holding part, of the suction tube; the first pipe is located above the second pipe, and a pressure conversion mechanism used for communicating based on the pressure difference between the interior of the first pipe and the interior of the second pipe is communicated between the first pipe and the second pipe. The end, away from the negative-pressure pump, of the first pipe communicates with a negative-pressure opening, and the end, away from the compression pump, of the second pipe communicates with multiple sprayers. The device is used for automatically balancing pressure in the suction process, reducing operation difficulty and keeping a pipeline unblocked.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a multifunctional laparoscopic aspirator. Background Art

[0002] In laparoscopic surgery, a laparoscopic aspirator can not only flush the pelvic and abdominal cavities, aspirate the liquid, bleeding, and smoke in the pelvic and abdominal cavities to maintain the surgical field of view, but also use the aspirator to perform operations such as blocking, pressing, picking, and separating on the surrounding tissues to assist the progress of the surgical operation.

[0003] However, during the aspiration process of the aspirator, if the suction force is insufficient, the liquid, bleeding, or smoke cannot be smoothly aspirated away. If the suction force is too large or there is a misoperation, it may cause damage to the surrounding tissues. At the same time, impurities such as blood clots are easily inhaled during the aspiration process, blocking the pipeline and affecting the work efficiency. Therefore, it has high requirements for the experience of the operator. If the operation is not skilled, it may suck the abdominal visceral tissues or omental tissues, resulting in blockage of the suction head, retention of blood accumulation and fluid accumulation, and even bleeding of the laparoscopic visceral tissues. Therefore, the present invention provides a multifunctional laparoscopic aspirator that can automatically balance the negative pressure suction during the aspiration process, reduce the operation difficulty, and keep the pipeline unblocked. Summary of the Invention

[0004] To solve the above problems, the present invention provides a multifunctional laparoscopic aspirator for automatically balancing the negative pressure suction during the aspiration process, reducing the operation difficulty, and keeping the pipeline unblocked.

[0005] To achieve the above object, the technical solution of the present invention is as follows: A multifunctional laparoscopic aspirator includes a holding part and an aspiration tube. The holding part is fixedly connected to the aspiration tube. The aspiration tube is connected through a pipeline to a negative pressure pump for generating negative pressure suction, and the aspiration tube is also connected through a pipeline to a compression pump for pumping flushing liquid. The aspiration tube includes a first tube and a second tube. The first tube is connected to the negative pressure pump through a pipeline, and the second tube is connected to the compression pump through a pipeline.

[0006] One end of the aspiration tube away from the holding part is provided with a clamping mechanism for clamping the surrounding tissues.

[0007] The first tube is located above the second tube, and a pressure conversion mechanism for communicating based on the pressure difference between the inside of the first tube and the second tube is connected between the first tube and the second tube. One end of the first tube away from the negative pressure pump is connected to a negative pressure port, and one end of the second tube away from the compression pump is connected to a plurality of nozzles.

[0008] The technical principle of the above solution is as follows: Based on Bernoulli's principle, the first tube sucks external liquids, oozing blood, smoke, and other tissues through the negative pressure suction generated by a negative pressure pump. The first tube is in a negative pressure state, while the second tube is flushed by controlling the opening of the nozzle. Under normal conditions, the fluid flow rate inside the first tube is fast and the pressure is low, while the second tube is not flushed, with a slow flow rate or is static, and the pressure is high, thus forming a pressure difference. When the first tube is blocked, the connection situation is controlled by a pressure conversion mechanism to use the flushing liquid inside the second tube to dredge the first tube and ensure its smoothness.

[0009] The above solution has the following beneficial effects:

[0010] 1. In this solution, the clamping mechanism on the suction tube is used to clamp the surrounding tissues, facilitating the separation of the clamped tissues from the surrounding tissues to meet the needs of laparoscopic surgery. At the same time, the first tube and the second tube are used to aspirate and flush the periphery of the clamped tissues to improve the clarity of the surgical field.

[0011] 2. In this solution, during the operation of the operator, the pressure conversion mechanism is used to dredge the first tube when it is blocked, reducing manual cleaning operations and improving the fluency of the surgical operation process.

[0012] 3. In this solution, automatic control is carried out using the pressure situation during the suction process. The operator can focus more on controlling the negative pressure suction and aspiration, reducing the operation difficulty and facilitating the operator's control.

[0013] Furthermore, the clamping mechanism includes a first block and a second block. The second block is located above the first block. The first block is fixedly connected to the suction tube, and the second block is rotationally matched with the suction tube.

[0014] The nozzle is located on one side of the second block close to the first block, and the negative pressure port is located at one end of the second block far from the suction tube.

[0015] A pressing handle is rotationally matched at one end of the holding part far from the suction tube. There is also an extension block fixedly connected to the holding part on one side of the pressing handle. An airbag is provided between the extension block and the pressing handle. The airbag is connected to a trachea. One end of the trachea far from the airbag is connected to a pneumatic telescopic rod. The pneumatic telescopic rod is hinged to one end of the second block far from the negative pressure port, and a first torsion spring for resetting is provided at the rotation point of the second block and the suction tube.

[0016] When the pressing handle squeezes the airbag, the pneumatic telescopic rod extends, and the second block moves away from the first block; when the airbag resets and pushes the pressing handle to move, the pneumatic telescopic rod retracts, and the second block moves closer to the first block.

[0017] Beneficial effects: The flushing liquid is ejected through the nozzle to flush the substances attached to the first block or the bleeding of the surrounding tissues. The operator squeezes the airbag using the pressing handle, so as to suck the periphery of the clamped tissue through the rotating second block, so as to reduce the generation of liquid, bleeding and smoke around the clamped tissue, facilitating subsequent abdominal surgery.

[0018] Furthermore, the pressure conversion mechanism includes a number of exchange pipes and a closing plate. The exchange pipes are located between the first pipe and the second pipe; a clamping groove is provided at the bottom of the exchange pipe, and the diameter of the clamping groove is larger than that of the exchange pipe. The closing plate is rotationally matched with the suction pipe, and the closing plate is located in the clamping groove;

[0019] One side of the closing plate is fixedly connected with a rotating shaft, the rotating shaft is rotationally matched with the suction pipe, a second torsion spring is sleeved on the rotating shaft, a sleeve is slidably matched in the exchange pipe, and first springs are fixedly connected between both sides of the sleeve and the first pipe;

[0020] When the negative pressure suction in the first pipe is in a normal state, the top of the sleeve is located inside the exchange pipe; when the negative pressure suction in the first pipe is greater than the normal state, the top of the sleeve is located inside the first pipe.

[0021] Beneficial effects: In the normal state, since the pressure of the second pipe is greater than that of the first pipe, the pressure difference between the two forces the closing plate to close the exchange pipe. When the first pipe is blocked inside, the closing plate no longer closes the exchange pipe at the blocked part, allowing the flushing liquid to enter the first pipe to flush both sides, so as to dredge the blocked part of the first pipe.

[0022] At the same time, the change in the negative pressure difference between the first pipe and the second pipe is used to push the sleeve to overcome the resistance of the first spring, so as to reduce the diameter of the first pipe or close the first pipe through the sleeve, so as to automatically balance the possible damage to the surrounding tissues caused by excessive negative pressure attraction.

[0023] Furthermore, the rotating shaft of the closing plate is located on the side of the second pipe close to the compression pump.

[0024] Beneficial effects: Utilize the impact force generated when the flushing liquid in the second pipe flows to close the closing plate to form a short impact water flow to flush the impurities blocked inside the first pipe, so as to facilitate the unblocking of the first pipe.

[0025] Furthermore, a shaking plate corresponding to the exchange pipe is provided at the top of the first pipe, a loosening groove is opened at the top of the first pipe, the shaking plate is slidably matched with the loosening groove, and a number of second springs are connected between the shaking plate and the suction pipe.

[0026] Beneficial effects: When the flushing liquid in the second pipe enters the first pipe, it contacts the shaking plate to loosen the blocked position near the exchange pipe inside the first pipe; the reset second spring is used to push the shaking plate to shake, so as to facilitate the unblocking of the first pipe.

[0027] Furthermore, an auxiliary cavity is also formed in the suction tube. The auxiliary cavity is located between adjacent exchange tubes, and the auxiliary cavity is located above the closing plate near the rotating shaft. A top block is fixedly connected to the rotating shaft, and the top block is slidably engaged with the auxiliary cavity; a push rod is slidably engaged in the auxiliary cavity. The push rod is located above the rotating shaft, and a third spring is sleeved on the push rod;

[0028] When the closing plate is perpendicular to the exchange tube, the top block is separated from the push rod; when the closing plate is parallel to the exchange tube, the top block abuts against the push rod.

[0029] Beneficial effects: By using the rotation condition of the closing plate, the top block is driven to rotate through the rotating shaft, the push rod is pushed to move through the top block, the push rod is used to penetrate into the first tube to loosen the blocked position near the exchange tube in the first tube, so as to ensure the smoothness of the first tube.

[0030] Furthermore, it further includes a control panel located inside the holding part. The control panel is electrically connected to a first pressure sensor and a speaker. The first pressure sensor is located on one side of the closing plate close to the exchange tube, and the speaker is located on one side of the holding part;

[0031] The first pressure sensor is used to measure the first pressure data on the top of the closing plate in real time and send the first pressure data to the control panel. The control panel is used to compare the first pressure data with a set first standard value. If the first pressure data is greater than the first standard value, a standby instruction is sent to the speaker; if the first pressure data is less than the first standard value, a reminder instruction is sent to the speaker.

[0032] Beneficial effects: By comparing the pressure data of the closing plate, it is determined whether a blockage occurs inside the first tube, so as to remind the operator to adjust the surgical procedure and maintain the surgical field of view.

[0033] Furthermore, the control panel is also electrically connected to a second pressure sensor, and the second pressure sensor is located between the two sides of the sleeve and the first spring;

[0034] The second pressure sensor is used to measure the second pressure data when the sleeve is pressurized in real time and send the second pressure data to the control panel; the control panel is used to compare the second pressure data with a set second standard value. If the second pressure data is greater than the second standard value, a warning instruction is sent to the speaker; if the second pressure data is less than the second standard value, a standby instruction is sent to the speaker.

[0035] Beneficial effects: By detecting the situation of the second pressure data when the two sides of the sleeve are pressurized, it is determined whether the sleeve moves, so as to remind the operator that the negative pressure suction inside the first tube is too large and remind the operator to make an active adjustment.

[0036] Further, a plurality of buttons for adjusting the working power of the negative pressure pump and the compression pump are provided on the pressing handle, and the buttons are located on the upper and lower sides of the pressing handle.

[0037] Beneficial effects: Through the buttons on the pressing handle, during the process of the operator controlling the second block to clamp by pressing the handle, it is convenient for the operator's fingers to move up and down, facilitating the adjustment of the working power of the negative pressure pump and the compression pump.

[0038] Further, the spray heads are located on both sides of the top of the second block.

[0039] Beneficial effects: The cleaning liquid sprayed by the spray heads on both sides flushes the surrounding tissues to reduce the impurities attached to the surface of the tissue clamped by the first block and the second block, achieving timely cleaning.

[0040] Further, the negative pressure port is connected to a first electromagnetic valve, the first electromagnetic valve is electrically connected to the control panel, and the normal state of the first electromagnetic valve is normally open;

[0041] A cleaning pipe is connected between one end of the first pipe close to the negative pressure port and the second pipe, a second electromagnetic valve is connected in the cleaning pipe, the second electromagnetic valve is electrically connected to the control panel, and the normal state of the second electromagnetic valve is normally closed.

[0042] Beneficial effects: The control panel controls the opening and closing of the first electromagnetic valve and the second electromagnetic valve to achieve the closure of the first pipe and the connection between the first pipe and the second pipe, so as to use the flushing liquid in the second pipe to flush the impurities remaining inside the first pipe to ensure the smoothness of the first pipe.

[0043] Further, a locking mechanism is further included, the locking mechanism includes a clamping shaft corresponding to the closing plate, and the clamping shaft is rotationally matched with the suction pipe;

[0044] A moving cavity is opened in the suction pipe, the moving cavity is located on one side of the rotating shaft, one end of the clamping shaft away from the rotating shaft is fixedly connected with a first magnet layer, the first magnet layer is located in the moving cavity, and an electromagnet is arranged in the moving cavity, and the electromagnet is electrically connected to the control panel;

[0045] When the electromagnet is not energized, the clamping shaft is separated from the closing plate; when the electromagnet is energized, the clamping shaft abuts against the closing plate.

[0046] Beneficial effects: By the clamping shaft abutting against the closing plate, the position of the closing plate is fixed and does not change, so as to facilitate the flushing and cleaning of the first pipe.

[0047] Further, a plurality of anti-slip grooves are opened on the extension block.

[0048] Beneficial effects: The anti-slip grooves increase the friction between the operator's hand and the extension block during the gripping process, facilitating the gripping stability of the operator and facilitating the operator to drive the suction pipe to move.

[0049] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Is an axonometric view of an embodiment of the multifunctional laparoscopic aspirator of the present invention;

[0051] Figure 2 Is a top view of an embodiment of the multifunctional laparoscopic aspirator of the present invention;

[0052] Figure 3 Is Figure 2 A schematic cross-sectional view taken along the direction A-A in

[0053] Figure 4 Is Figure 3 An enlarged schematic view of the local part B in

[0054] Reference numerals in the drawings of the specification include: 1, a holding part; 11, a speaker; 12, a pressing handle; 13, a pipe; 14, a button; 15, an airbag; 16, an air pipe; 17, a pneumatic telescopic rod; 2, an aspiration tube; 21, a first tube; 22, a second tube; 23, a cleaning tube; 24, a second solenoid valve; 25, a shaking plate; 26, a second spring; 3, a first block; 31, a second block; 32, a nozzle; 33, a negative pressure port; 34, a first solenoid valve; 4, an exchange tube; 41, a sleeve; 42, a first spring; 5, a closing plate; 51, a rotating shaft; 52, a top block; 6, a top rod; 61, a third spring; 7, a clamping shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0056] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] The following is a further detailed description through specific embodiments:

[0059] Embodiment 1:

[0060] As shown in the attached Figures 1 to 4 figure: A multifunctional laparoscopic aspirator includes a holding part 1 and an aspiration tube 2. The holding part 1 is welded to the aspiration tube 2. The aspiration tube 2 is connected through a pipeline 13 to a negative pressure pump (not shown in the figure) for generating negative pressure suction, and the aspiration tube 2 is also connected through a pipeline 13 to a compression pump (not shown in the figure) for pumping flushing liquid. The aspiration tube 2 includes a first tube 21 and a second tube 22. The first tube 21 is connected to the negative pressure pump through a pipeline 13, and the second tube 22 is connected to the compression pump through a pipeline 13. The negative pressure pump and the compression pump are prior arts and will not be elaborated in this embodiment.

[0061] One end of the aspiration tube 2 away from the holding part 1 is provided with a clamping mechanism for clamping surrounding tissues; the first tube 21 is located above the second tube 22, and a pressure conversion mechanism for communicating based on the pressure difference between the inside of the first tube 21 and the second tube 22 is connected between the first tube 21 and the second tube 22; one end of the first tube 21 away from the negative pressure pump is connected to a negative pressure port 33, and several spray heads 32 are connected to one end of the second tube 22 away from the compression pump.

[0062] Among them, the clamping mechanism includes a first block 3 and a second block 31. The second block 31 is located above the first block 3. The first block 3 is integrally formed with the aspiration tube 2, and the second block 31 is rotatably fitted with the aspiration tube 2; the spray heads 32 are located on one side of the second block 31 close to the first block 3, and the negative pressure port 33 is located at one end of the second block 31 away from the aspiration tube 2; and the spray heads 32 are located on both sides of the top of the second block 31.

[0063] One end of the holding part 1 away from the aspiration tube 2 is rotatably fitted with a pressing handle 12. The pressing handle 12 is provided with several buttons 14 for adjusting the working power of the negative pressure pump and the compression pump. The buttons 14 are located on the upper and lower sides of the pressing handle 12. One side of the pressing handle 12 is also provided with an extension block integrally formed with the holding part 1, and several anti-slip grooves are formed on the extension block.

[0064] An airbag 15 is provided between the extension block and the pressing handle 12, and the airbag 15 is communicated with an air tube 16; one end of the air tube 16 away from the airbag 15 is communicated with a pneumatic telescopic rod 17, and the pneumatic telescopic rod 17 is hinged to one end of the second block 31 away from the negative pressure port 33. And a first torsion spring for resetting is provided at the rotation part of the second block 31 and the suction tube 2. One end of the first torsion spring is welded to the second block 31, and the other end of the first torsion spring is welded to the suction tube 2; when the pressing handle 12 squeezes the airbag 15, the pneumatic telescopic rod 17 extends, and the second block 31 moves away from the first block 3; when the airbag 15 resets and pushes the pressing handle 12 to move, the pneumatic telescopic rod 17 retracts, and the second block 31 approaches the first block 3.

[0065] The pressure conversion mechanism includes a plurality of exchange tubes 4 and a closing plate 5. The exchange tubes 4 are located between the first tube 21 and the second tube 22; a card slot (not shown in the figure) is provided at the bottom of the exchange tube 4, and the diameter of the card slot is larger than the diameter of the exchange tube 4. The closing plate 5 is rotationally matched with the suction tube 2, and the closing plate 5 is located in the card slot; a rotating shaft 51 is welded to one side of the closing plate 5, the rotating shaft 51 is rotationally matched with the suction tube 2, and a second torsion spring is sleeved on the rotating shaft 51. A sleeve 41 is slidably matched in the exchange tube 4, and first springs 42 are fixedly connected between both sides of the sleeve 41 and the first tube 21. And the rotating shaft 51 of the closing plate 5 is located on the side of the second tube 22 close to the compression pump.

[0066] When the negative pressure suction in the first tube 21 is in the normal state, the top of the sleeve 41 is located inside the exchange tube 4; when the negative pressure suction in the first tube 21 is greater than the normal state, the top of the sleeve 41 is located inside the first tube 21.

[0067] The specific implementation process is as follows: First, the operator drives the holding part 1 and the suction tube 2 to move by grasping the extension block, and uses the anti-slip groove on the extension block to improve the grasping stability of the operator. During use, by pressing the button 14 on the pressing handle 12, it is convenient for the operator's fingers to move up and down, which is convenient for adjusting the working power of the negative pressure pump and the compression pump.

[0068] During the suction process of the suction tube 2, based on Bernoulli's principle, it can be known that the negative pressure suction generated by the negative pressure pump in the first tube 21 sucks other tissues such as external liquid, oozing blood and smoke. The first tube 21 is in a negative pressure state, while the second tube 22 is flushed by controlling the opening of the spray head 32. Under normal conditions, the fluid flow rate inside the exchange tube 4 is fast and the pressure is low, so that a negative pressure adsorption force is formed at the junction of the exchange tube 4 and the second tube 22, which is convenient for the closing plate 5 to close the exchange tube 4. When the second tube 22 does not perform flushing, the flow rate inside the second tube 22 is slow or static, and the pressure is high, so as to form a pressure difference. At this time, since the pressure of the second tube 22 is greater than the pressure of the first tube 21, the pressure difference between the two pushes the closing plate 5 to close the exchange tube 4.

[0069] When a blockage occurs inside the first tube 21, the first tube 21 between the blockage and the negative pressure port 33 communicates with the outside, reducing the pressure difference between the inside of the first tube 21 and the second tube 22. Using the torsional force of the torsion spring, the closing plate 5 no longer closes the exchange tube 4 at the blockage, allowing the high pressure inside the second tube 22 (compared to the inside of the first tube 21) to cause the flushing liquid to enter the inside of the first tube 21 to flush both sides, so as to dredge the blockage of the first tube 21.

[0070] At the same time, the change in the negative pressure difference between the first tube 21 and the second tube 22 is used to push the sleeve 41 to overcome the resistance of the first spring 42. The greater the pressure difference between the two, the greater the moving distance of the closing plate 5 is pushed, so as to reduce the diameter of the first tube 21 or close the first tube 21 through the sleeve 41, so as to automatically balance the possible damage to the surrounding tissues caused by excessive negative pressure attraction and reduce the operation difficulty.

[0071] When the second tube 22 is connected to the first tube 21 through the exchange tube 4, using the impact force generated by the flow of the flushing liquid inside the second tube 22, when the closing plate 5 is opened due to the decrease in the air pressure difference, the flushing liquid inside the second tube 22 is used to push the closing plate 5 to close, so as to form a short impact water flow to flush the impurities blocked inside the first tube 21, so as to facilitate the unblocking of the first tube 21.

[0072] When separating tissues through the clamping mechanism, the operator squeezes the airbag 15 with the pressing handle 12 to control the clamping degree between the second block 31 and the first block 3, so as to clamp the surrounding tissues through the first block 3 and the second block 31, facilitating the separation of the clamped tissues from the surrounding tissues. At the same time, the rotating second block 31 sucks the periphery of the clamped tissues to reduce the generation of liquid, bleeding, smoke, etc. around the clamped tissues, so as to facilitate subsequent abdominal surgery. Then, the flushing liquid is sprayed through the nozzle 32 to flush the substances attached to the first block 3 or the bleeding substances of the surrounding tissues, ensuring the surgical field of view.

[0073] Embodiment 2:

[0074] The difference from Embodiment 1 is that a shaking plate 25 corresponding to the exchange tube 4 is provided at the top of the first tube 21. A loosening groove is opened at the top of the first tube 21. The shaking plate 25 is slidably matched with the loosening groove. A plurality of second springs 26 are connected between the shaking plate 25 and the suction tube 2.

[0075] The specific implementation process is as follows: When the flushing liquid inside the second tube 22 enters the first tube 21, it first contacts the shaking plate 25, overcomes the resistance of the second spring 26 to expand the diameter of the first tube 21, so as to loosen the blocked position near the exchange tube 4 inside the first tube 21; when the liquid inside the second tube 22 is discharged, the reset second spring 26 pushes the shaking plate 25 to shake, so as to loosen the blocked position near the exchange tube 4 inside the first tube 21, so as to keep the first tube 21 unobstructed.

[0076] Embodiment 3:

[0077] The difference from Embodiment 2 is that an auxiliary cavity (not marked in the figure) is also provided inside the suction tube 2. The auxiliary cavity is located between adjacent exchange tubes 4, and the auxiliary cavity is located above the closing plate 5 near the rotating shaft 51. A top block 52 is welded on the rotating shaft 51, and the top block 52 is slidably matched with the auxiliary cavity; a top rod 6 is slidably matched inside the auxiliary cavity. The top rod 6 is located above the rotating shaft 51. A third spring 61 is sleeved on the top rod 6. One end of the third spring 61 is welded to the top rod 6, and the other end of the third spring 61 is welded to the suction tube 2; when the closing plate 5 is perpendicular to the exchange tube 4, the top block 52 is separated from the top rod 6; when the closing plate 5 is parallel to the exchange tube 4, the top block 52 abuts against the top rod 6.

[0078] The specific implementation process is as follows: During the process of using the pressure difference between the first tube 21 and the second tube 22 to push the closing plate 5 to rotate, the rotation of the closing plate 5 is used to drive the top block 52 to rotate through the rotating shaft 51, so as to push the top rod 6 to move through the top block 52, so as to use the top rod 6 to penetrate into the first tube 21 to loosen the blocked position near the exchange tube 4 inside the first tube 21, so as to ensure the unobstructedness of the first tube 21.

[0079] Embodiment 4:

[0080] The difference from Embodiment 3 is that it further includes a control panel (not shown in the figure) located inside the holding portion 1. The control panel is electrically connected to a first pressure sensor (not shown in the figure) and a speaker 11. The first pressure sensor is located on one side of the closing plate 5 close to the exchange tube 4, and the speaker 11 is located on one side of the holding portion 1; in another embodiment, the speaker 11 is an LED lamp, and different colors or frequencies of light are emitted by the LED lamp to remind the operator to perform corresponding operations to ensure surgical safety.

[0081] The first pressure sensor is used to measure the first pressure data on the top of the closing plate 5 in real time and send the first pressure data to the control panel. The control panel is used to compare the first pressure data with a set first standard value. If the first pressure data is greater than the first standard value, a standby instruction is sent to the speaker 11; if the first pressure data is less than the first standard value, a reminder instruction is sent to the speaker 11.

[0082] For example, based on the detection of the contact situation between the closing plate 5 and the exchange tube 4 to determine the first pressing data, and by comparing the pressure data of the closing plate 5, it is determined whether a blockage occurs inside the first tube 21, so as to remind the operator to adjust the surgical process, so as to facilitate the operation when the first tube 21 maintains a normal negative pressure suction, so as to reduce the situation that the liquid, residual blood, smoke, etc. in the abdominal cavity cannot be sucked in time, and keep the surgical field clear.

[0083] The control panel is also electrically connected to a second pressure sensor, and the second pressure sensor is located between both sides of the sleeve 41 and the first spring 42; the second pressure sensor is used to measure the second pressing data in real time when the sleeve 41 is pressing, and send the second pressing data to the control panel; the control panel is used to compare the second pressing data with a set second standard value. If the second pressing data is greater than the second standard value, a warning instruction is sent to the speaker 11; if the second pressing data is less than the second standard value, a standby instruction is sent to the speaker 11.

[0084] For example, during the movement of the sleeve 41, by detecting the situation of the second pressing data when pressing both sides of the sleeve 41, it is determined whether the sleeve 41 moves, so as to remind the operator that the negative pressure suction inside the first tube 21 is too large, and remind the operator to make an active adjustment, reducing the occurrence of the continuous increase of the negative pressure suction during the subsequent continuous operation of the operator, and thus ensuring that the inside of the first tube 21 is under normal negative pressure suction.

[0085] Embodiment 5:

[0086] The difference from Embodiment 4 is that the negative pressure port 33 is communicated with a first electromagnetic valve 34, the first electromagnetic valve 34 is electrically connected to the control panel, and the normal state of the first electromagnetic valve 34 is in an open state; a cleaning tube 23 is communicated between one end of the first tube 21 close to the negative pressure port 33 and the second tube 22, a second electromagnetic valve 24 is communicated inside the cleaning tube 23, the second electromagnetic valve 24 is electrically connected to the control panel, and the normal state of the second electromagnetic valve 24 is in a closed state.

[0087] It further includes a locking mechanism, the locking mechanism includes a clamping shaft 7 corresponding to the closing plate 5, and the clamping shaft 7 is rotationally matched with the suction tube 2; a moving cavity (not shown in the figure) is opened inside the suction tube 2, the moving cavity is located on one side of the rotating shaft 51, one end of the clamping shaft 7 away from the rotating shaft 51 is fixedly connected with a first magnet layer (not shown in the figure), the first magnet layer is located inside the moving cavity, and an electromagnet (not shown in the figure) is arranged inside the moving cavity, and the electromagnet is electrically connected to the control panel; when the electromagnet is not energized, the clamping shaft 7 is separated from the closing plate 5; when the electromagnet is energized, the clamping shaft 7 abuts against the closing plate 5.

[0088] The specific implementation process is as follows: When it is necessary to clean the inside of the first pipe 21, first, the clamping shaft 7 is used to abut against the closing plate 5 to fix the position of the closing plate 5 without change.

[0089] The opening and closing of the first solenoid valve 34 and the second solenoid valve 24 are controlled through the control panel to achieve the closing of the first pipe 21 and the communication between the first pipe 21 and the second pipe 22, so as to use the flushing liquid in the second pipe 22 to flush the impurities remaining inside the first pipe 21, to ensure the smoothness of the first pipe 21 and reduce the residue of the impurities adhering to the inside of the first pipe 21.

[0090] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A multifunctional laparoscopic suction device, comprising a gripping portion (1) and a suction tube (2), wherein the gripping portion (1) is fixedly connected to the suction tube (2), the suction tube (2) is connected to a negative pressure pump for generating negative pressure suction through a pipeline (13), and the suction tube (2) is also connected to a compression pump for pumping a flushing liquid through a pipeline (13), characterized in that: The suction tube (2) comprises a first tube (21) and a second tube (22); the first tube (21) is connected to the negative pressure pump through a pipeline (13); and the second tube (22) is connected to the compression pump through the pipeline (13); One end of the suction tube (2) away from the gripping portion (1) is provided with a clamping mechanism for clamping surrounding tissues; The first tube (21) is located above the second tube (22); a pressure conversion mechanism for communicating based on the pressure difference between the first tube (21) and the second tube (22) is connected between the first tube (21) and the second tube (22); an end of the first tube (21) away from the negative pressure pump is connected to a negative pressure port (33); an end of the second tube (22) away from the compression pump is connected to a plurality of nozzles (32).

2. The multifunctional laparoscopic aspirator according to claim 1, characterized in that: The clamping mechanism comprises a first block (3) and a second block (31), the second block (31) is located above the first block (3), the first block (3) is fixedly connected to the suction tube (2), and the second block (31) is rotatably matched with the suction tube (2); The nozzle (32) is located on a side of the second block (31) close to the first block (3), and the negative pressure port (33) is located on an end of the second block (31) away from the suction tube (2); The end of the gripping portion (1) away from the suction tube (2) is rotatably matched with a pressing handle (12), and an extension block fixedly connected to the gripping portion (1) is also provided on one side of the pressing handle (12), and an air bag (15) is provided between the extension block and the pressing handle (12), and the air bag (15) is connected to an air tube (16); the end of the air tube (16) away from the air bag (15) is connected to a pneumatic telescopic rod (17), and the pneumatic telescopic rod (17) is hinged to an end of the second block (31) away from the negative pressure port (33), and a first torsion spring for resetting is provided at the rotation point between the second block (31) and the suction tube (2); When the pressing handle (12) presses the airbag (15), the pneumatic telescopic rod (17) extends and the second block (31) moves away from the first block (3); when the airbag (15) is reset and pushes the pressing handle (12) to move, the pneumatic telescopic rod (17) retracts and the second block (31) moves closer to the first block (3).

3. The multifunctional laparoscopic aspirator according to claim 2, characterized in that: The pressure conversion mechanism comprises a plurality of exchange tubes (4) and a closing plate (5), wherein the exchange tube (4) is located between the first tube (21) and the second tube (22); a card slot is provided at the bottom of the exchange tube (4), the diameter of the card slot is larger than the diameter of the exchange tube (4), the closing plate (5) is rotatably matched with the suction tube (2), and the closing plate (5) is located in the card slot; A rotating shaft (51) is fixedly connected to one side of the closing plate (5), the rotating shaft (51) is rotatably matched with the suction tube (2), a second torsion spring is sleeved on the rotating shaft (51), a sleeve (41) is slidably matched inside the exchange tube (4), and first springs (42) are fixedly connected between the two sides of the sleeve (41) and the first tube (21); When the negative pressure suction force in the first tube (21) is in a normal state, the top of the sleeve (41) is located inside the exchange tube (4); when the negative pressure suction force in the first tube (21) is greater than the normal state, the top of the sleeve (41) is located inside the first tube (21).

4. The multifunctional laparoscopic aspirator according to claim 3, characterized in that: The rotating shaft (51) of the closing plate (5) is located on a side of the second tube (22) close to the compression pump.

5. The multifunctional laparoscopic aspirator according to claim 4, characterized in that: A shaking plate (25) corresponding to the exchange tube (4) is provided at the top of the first tube (21), a loosening groove is opened at the top of the first tube (21), the shaking plate (25) and the loosening groove are slidably matched, and a plurality of second springs (26) are connected between the shaking plate (25) and the suction tube (2).

6. The multifunctional laparoscopic aspirator according to claim 5, characterized in that: An auxiliary cavity is also provided in the suction tube (2). The auxiliary cavity is located between adjacent exchange tubes (4) and above the closing plate (5) near the rotating shaft (51). A top block (52) is fixedly connected to the rotating shaft (51). The top block (52) is slidably engaged with the auxiliary cavity. A top rod (6) is slidably engaged in the auxiliary cavity. The top rod (6) is located above the rotating shaft (51). A third spring (61) is sleeved on the top rod (6). When the closing plate (5) is perpendicular to the exchange tube (4), the top block (52) and the top rod (6) are separated; when the closing plate (5) is parallel to the exchange tube (4), the top block (52) and the top rod (6) are against each other.

7. The multifunctional laparoscopic aspirator according to claim 6, characterized in that: It also includes a control panel located inside the gripping portion (1), the control panel being electrically connected to a first pressure sensor and a loudspeaker (11), the first pressure sensor being located on a side of the closing plate (5) close to the exchange tube (4), and the loudspeaker (11) being located on one side of the gripping portion (1); The first pressure sensor is used to measure first pressure data on the top of the closing plate (5) in real time, and send the first pressure data to the control panel. The control panel is used to compare the first pressure data with a set first standard value. If the first pressure data is greater than the first standard value, a standby instruction is sent to the speaker (11); if the first pressure data is less than the first standard value, a reminder instruction is sent to the speaker (11).

8. The multifunctional laparoscopic aspirator according to claim 7, characterized in that: The control panel is also electrically connected to a second pressure sensor, and the second pressure sensor is located between two sides of the sleeve (41) and the first spring (42); The second pressure sensor is used to measure in real time the second pressure data when the sleeve (41) applies pressure, and send the second pressure data to the control panel; the control panel is used to compare the second pressure data with a set second standard value, and if the second pressure data is greater than the second standard value, send a warning instruction to the speaker (11); if the second pressure data is less than the second standard value, send a standby instruction to the speaker (11).

9. The multifunctional laparoscopic aspirator according to claim 8, characterized in that: The pressing handle (12) is provided with a plurality of buttons (14) for adjusting the working power of the negative pressure pump and the compression pump, and the buttons (14) are located at the upper and lower sides of the pressing handle (12).

10. The multifunctional laparoscopic aspirator according to claim 9, characterized in that: The spray heads (32) are located on both sides of the top of the second block (31).

11. The multifunctional laparoscopic aspirator according to claim 10, characterized in that: The negative pressure port (33) is connected to a first electromagnetic valve (34), the first electromagnetic valve (34) is electrically connected to the control panel, and the first electromagnetic valve (34) is normally in a normally open state; A cleaning pipe (23) is connected between one end of the first pipe (21) close to the negative pressure port (33) and the second pipe (22); a second solenoid valve (24) is connected inside the cleaning pipe (23); the second solenoid valve (24) is electrically connected to the control panel; the second solenoid valve (24) is normally in a normally closed state.

12. The multifunctional laparoscopic aspirator according to claim 11, characterized in that: It also includes a locking mechanism, which includes a clamping shaft (7) corresponding to the closing plate (5), and the clamping shaft (7) is rotatably matched with the suction tube (2); A movable cavity is formed in the suction tube (2), and the movable cavity is located on one side of the rotating shaft (51). One end of the clamping shaft (7) away from the rotating shaft (51) is fixedly connected to a first magnet layer, and the first magnet layer is located in the movable cavity. An electromagnet is provided in the movable cavity, and the electromagnet is electrically connected to the control panel. When the electromagnet is not energized, the clamping shaft (7) is separated from the closing plate (5); when the electromagnet is energized, the clamping shaft (7) is against the closing plate (5).

13. The multifunctional laparoscopic aspirator according to claim 12, characterized in that: The extension block is provided with a plurality of anti-slip grooves.

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