Smoke extractor for laparoscopic surgery

Abstract

The utility model relates to the technical field of surgical instruments, in particular to a smoke exhaust device for laparoscopic surgery, which comprises a puncture needle, a connecting rod is slidably mounted in the tail end of the puncture needle, a bottom frame is sleeved outside the connecting rod, a knob cylinder is sleeved at one end of the bottom frame, and a smoke exhaust structure is clamped on one side of the knob cylinder. The smoke discharging structure comprises a smoke discharging pipe connected to one side of the rotary knob cylinder in a sleeving mode, an air outlet channel is further formed in the smoke discharging pipe, a first channel and a second channel are formed in the smoke discharging pipe, and the pipe diameter of the second channel is larger than that of the first channel. When the internal smoke is much, the sleeve is moved to the inlet of the first channel, the internal smoke is sucked into the balloon through the first channel and the connecting pipe, the first channel is small in pipe diameter and high in suction speed for smoke exhaust, and when the internal smoke is less, the sleeve is moved to the second channel, and the second channel is large in pipe diameter and low in suction speed for smoke exhaust. The internal smoke is sucked into the balloon at a time, smoke is exhausted according to different smoke amounts on the whole, and the smoke exhaust efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a laparoscopic surgery smoke exhaust device. Background Art

[0002] During abdominal surgery, after generally establishing an operation channel with a laparoscopic trocar, electrocoagulation surgical instruments or electronic surgical devices such as lasers are usually used. These devices generate smoke and gas during use, which may contain bacteria, harmful particles or other substances harmful to medical staff and patients. Usually, a suction device and a filter are used to extract the smoke and gas from the operation area, filter it and then release it outdoors.

[0003] In the prior art, a patent with the publication number CN215778571U discloses a laparoscopic surgery smoke exhaust device, which includes a smoke inlet pipe inserted into the laparoscopic trocar. The operating rod of the laparoscopic electrical instrument can pass through the smoke inlet pipe from right to left and extend out of the left end of the smoke inlet pipe, and the gap between the smoke inlet pipe and the operating rod of the laparoscopic electrical instrument forms a smoke exhaust channel; a smoke outlet pipe communicating with the smoke exhaust channel and connected to a negative pressure suction device.

[0004] The above structure can timely suck the smoke into the smoke exhaust channel. However, during the process of sucking the smoke, due to the different amounts of smoke in the abdominal cavity, it is impossible to exhaust the smoke according to different smoke volume requirements, and the smoke exhaust efficiency is low. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide a laparoscopic surgery smoke exhaust device to solve the problem that due to the different amounts of smoke in the abdominal cavity, it is impossible to exhaust the smoke according to different smoke volume requirements, and the smoke exhaust efficiency is low.

[0006] Based on the above purpose, the utility model provides a laparoscopic surgical smoke exhaust device, including a puncture needle, a connecting rod is slidably installed inside the end of the puncture needle, the outside of the connecting rod is sleeved with a base frame, the end of the base frame is fixedly installed with a handle, and one side of the handle is movably installed with a pressure rod, the top end of the pressure rod passes through the outside of the base frame and is inserted into the connecting rod, the pressure rod is used to drive the connecting rod to move in the base frame, one end of the base frame is sleeved with a knob tube, one side of the knob tube is clamped with a smoke exhaust structure; the smoke exhaust structure includes a smoke exhaust pipe sleeved on one side of the knob tube, the interior of the smoke exhaust pipe is penetrated by a through hole, the puncture needle passes through the through hole, the puncture needle and the through hole are interference fit, and the smoke exhaust pipe is also An air outlet channel is provided, and the inlet and outlet of the air outlet channel are both provided on the outside of the smoke exhaust pipe. A first channel and a second channel are respectively provided on the inside of the smoke exhaust pipe, and the diameter of the second channel is larger than the diameter of the first channel. The first channel and the second channel are connected with the through hole, and the outlets of the first channel and the second channel are both provided on the outside of the smoke exhaust pipe. A sleeve is sleeved on the outside of the smoke exhaust pipe, and air holes corresponding to the first channel and the second channel are provided in the sleeve. A connecting tube is connected to the bottom of the sleeve, and an opening connected to the connecting tube is provided in the sleeve. A balloon is fixedly connected to the end of the connecting tube, and a spring sheet is also installed on the balloon, and both ends of the spring sheet are respectively fixedly installed on the inner sides of the handle and the pressure rod.

[0007] Preferably, a threaded cylinder is fixedly installed inside the knob cylinder, a threaded portion corresponding to the threaded cylinder is arranged outside the end of the puncture needle, and a receiving groove for accommodating the sliding of the connecting rod is opened at the end of the puncture needle.

[0008] Preferably, an opening corresponding to the top end of the pressure rod is provided inside the connecting rod, and the handle and the pressure rod are hinged to each other.

[0009] Preferably, a telescopic piece is installed between the handle and the pressure rod, the telescopic piece is an arc-shaped structure, and the telescopic piece is distributed on the outside of the balloon in a mirror-like manner.

[0010] Preferably, the inlets of the first channel and the second channel are both axially arranged in sequence on the smoke exhaust pipe, and the first channel and the second channel are staggered in distribution, and the inlet and outlet of the air outlet channel are both arranged on the smoke exhaust pipe.

[0011] Preferably, the air outlet channel is an arc-shaped structure, and a filter tip is arranged inside the air outlet channel.

[0012] The beneficial effects of the utility model are as follows: firstly, the smoke exhaust pipe and the puncture needle are inserted into the surgical puncture device together, the pressure rod and the handle are pressed to discharge the gas in the balloon from the gas outlet channel, and then the position of the movable sleeve is selected according to the amount of smoke produced during the operation;

[0013] When there is a lot of internal smoke, move the sleeve to the inlet of the first channel. The balloon is connected to the first channel. Then release the pressure rod. At the same time, the balloon restores and generates suction under the action of the spring piece. The internal smoke is inhaled into the balloon through the first channel in the perforation and the connecting pipe at the end of the sleeve. Due to the large amount of smoke, release the pressure rod again. And because the diameter of the first channel is small, the inhalation speed is fast for smoke exhaust. When there is less internal smoke, the sleeve outside the exhaust pipe moves to the inlet of the second channel. Utilizing the design of the large diameter of the second channel, the inhalation speed is slow, and the internal smoke is inhaled into the balloon at one time for exhaust. Overall, exhaust is carried out according to different smoke amounts, with high exhaust efficiency, ensuring the smooth progress of the operation. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention;

[0016] Figure 2 is a semi-sectional structural schematic diagram of the whole of the present invention;

[0017] Figure 3 For the present invention Figure 2 is an enlarged structural schematic diagram of part A in the present invention.

[0018] The labels in the figure are: 1, puncture needle; 2, handle; 3, chassis; 4, pressure rod; 5, connecting rod; 6, knob cylinder; 7, exhaust structure; 8, exhaust pipe; 9, perforation; 10, air outlet channel; 11, first channel; 12, second channel; 13, sleeve; 14, connecting pipe; 15, balloon; 16, spring piece; 17, threaded cylinder; 18, telescopic piece; 19, receiving groove; 20, filter tip. Detailed Description of the Embodiments

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in combination with specific embodiments.

[0020] As Figure 1 , Figure 2 and Figure 3As shown, a laparoscopic surgical smoke exhaust device comprises a puncture needle 1, a connecting rod 5 is slidably installed inside the end of the puncture needle 1, a base frame 3 is sleeved on the outside of the connecting rod 5, a handle 2 is fixedly installed on the end of the base frame 3, a pressure rod 4 is movably installed on one side of the handle 2, the top end of the pressure rod 4 passes through the outside of the base frame 3 and is inserted into the connecting rod 5, the pressure rod 4 is used to drive the connecting rod 5 to move in the base frame 3, a knob tube 6 is sleeved on one end of the base frame 3, a smoke exhaust structure 7 is clamped on one side of the knob tube 6; the smoke exhaust structure 7 comprises a smoke exhaust pipe 8 sleeved on one side of the knob tube 6, a through hole 9 is penetrated inside the smoke exhaust pipe 8, the puncture needle 1 passes through the through hole 9, the puncture needle 1 and the through hole 9 are interference fit, an air outlet channel 10 is also opened in the smoke exhaust pipe 8, the inlet and outlet of the air outlet channel 10 Both are opened on the outside of the smoke exhaust pipe 8, and the inside of the smoke exhaust pipe 8 is respectively provided with a first channel 11 and a second channel 12, the diameter of the second channel 12 is larger than the diameter of the first channel 11, the first channel 11 and the second channel 12 are connected with the through hole 9, and the outlets of the first channel 11 and the second channel 12 are both opened on the outside of the smoke exhaust pipe 8; the outside of the smoke exhaust pipe 8 is sleeved with a sleeve 13, and the sleeve 13 is provided with ventilation holes corresponding to the first channel 11 and the second channel 12 respectively, the bottom of the sleeve 13 is connected with a connecting tube 14, and the sleeve 13 is provided with an opening connected to the connecting tube 14, the end of the connecting tube 14 is fixedly connected with a balloon 15, and a spring sheet 16 is also installed on the balloon 15, and the two ends of the spring sheet 16 are respectively fixedly installed on the inner side of the handle 2 and the pressure rod 4.

[0021] In this embodiment, the smoke exhaust pipe 8 and the puncture needle 1 are first inserted into the surgical puncture device, the outlet of the gas outlet channel 10 is exposed, and the pressure rod 4 and the handle 2 are pressed, so that the pressure rod 4 and the handle 2 squeeze the internal balloon 15 to discharge the gas in the balloon 15 from the gas outlet channel 10, and then the position of the movable sleeve 13 is selected according to the amount of smoke produced during the operation;

[0022] When there is a lot of internal smoke, the sleeve 13 is moved to the entrance of the first channel 11, the balloon 15 is connected to the first channel 11, and then the pressure rod 4 is released. At the same time, the balloon 15 resumes suction under the action of the spring sheet 16, and the internal smoke is sucked into the balloon 15 through the first channel 11 in the perforation 9 and the connecting tube 14 at the end of the sleeve 13. Due to the large amount of smoke, it is released again, and the diameter of the first channel 11 is small, and the suction speed is fast to exhaust the smoke. When there is less internal smoke, the outer sleeve 13 of the exhaust pipe 8 is moved to the entrance of the second channel 12. The design of the large diameter of the second channel 12 and the slow suction speed are used to suck the internal smoke into the balloon 15 for exhaust at one time. The overall exhaust is performed according to different smoke amounts to ensure the smooth progress of the operation.

[0023] As an implementation method, Figure 3As shown, a threaded cylinder 17 is fixedly installed inside the knob cylinder 6. A threaded portion corresponding to the threaded cylinder 17 is provided outside the end of the puncture needle 1, and a receiving groove 19 for accommodating the sliding of the connecting rod 5 is provided at the end of the puncture needle 1. An air vent hole is provided in the receiving groove 19.

[0024] In this embodiment, due to a large amount of smoke, the knob cylinder 6 is rotated, and the threaded cylinder 17 inside is used to lock the end of the puncture needle 1. When secondary inhalation is required, after squeezing the pressure rod 4 and the handle 2 again to exhaust the smoke, then the pressure rod 4 is released. Since the puncture needle 1 is restricted by the threaded cylinder 17 and due to the setting of the receiving groove 19 at the end, the connecting rod 5 moves in the receiving groove 19, and the puncture needle 1 does not move, thereby exhausting the smoke during the operation.

[0025] As an embodiment, as Figure 1 、 Figure 2 shown, an opening corresponding to the top end of the pressure rod 4 is provided inside the connecting rod 5, and the handle 2 and the pressure rod 4 are hinged to each other.

[0026] In this embodiment, the inhaled smoke is exhausted by pressing the pressure rod 4 and the handle 2, and releasing the pressure rod 4 inhales the smoke during the operation, manually controlling the smoking and exhausting actions.

[0027] As an embodiment, as Figure 1 、 Figure 2 shown, a telescopic piece 18 is installed between the handle 2 and the pressure rod 4. The telescopic piece 18 is of an arc structure, and the telescopic pieces 18 are mirror - distributed outside the balloon 15.

[0028] In this embodiment, through the combination of the telescopic piece 18 and the spring piece 16, after releasing the pressure rod 4, under the action of the spring piece 16 and the telescopic piece 18, the balloon 15 is pulled to recover, thereby generating suction to exhaust the smoke during the operation.

[0029] As an embodiment, as Figure 1 、 Figure 2 shown, the inlets of the first channel 11 and the second channel 12 are sequentially arranged axially on the smoke exhaust pipe 8, axially arranged one above the other, and the first channel 11 and the second channel 12 are stagger - distributed. The inlets and outlets of the air outlet channel 10 are both arranged on the smoke exhaust pipe 8.

[0030] In this embodiment, when there is a large amount of smoke inside, the sleeve 13 is moved to the inlet of the first channel 11. When there is less smoke inside, the sleeve 13 outside the smoke exhaust pipe 8 is moved to the inlet of the second channel 12. When the balloon 15 exhausts smoke, the sleeve 13 corresponds to the inlet of the air outlet channel 10, with a wide range of applications, and it is selected for use according to different smoke amounts.

[0031] As an embodiment, as Figure 2As shown, the air outlet channel 10 is an arc-shaped structure, and a filter tip 20 is arranged inside the air outlet channel 10.

[0032] In this embodiment, when the sleeve 13 moves to the inlet of the air outlet channel 10, the air outlet channel 10 communicates with the balloon 15. By squeezing the pressure rod 4 and the handle 2, the smoke inside the balloon 15 is discharged through the filter tip 20 of the arc-shaped air outlet channel 10, preventing the smoke from harming the environment.

[0033] Working principle: When in use, first insert the smoke exhaust pipe 8 and the puncture needle 1 into the surgical trocar together, with the outlet of the air outlet channel 10 exposed. Move the sleeve 13 to the inlet of the air outlet channel 10, press the pressure rod 4 and the handle 2. The pressure rod 4 and the handle 2 squeeze the internal balloon 15, and the gas in the balloon 15 is discharged from the air outlet channel 10. At this time, the connecting rod 5 pulls the end of the puncture needle 1 to move into the knob cylinder 6, and then select the position of moving the sleeve 13 according to the amount of smoke generated during the operation; when there is a lot of internal smoke, move the sleeve 13 to the inside of the first channel 11, and the balloon 15 communicates with the first channel 11. Then release the pressure rod 4. Due to the setting of the receiving groove 19 at the end of the puncture needle 1, the connecting rod 5 moves in the receiving groove 19. At the same time, the balloon 15 resumes and generates suction under the action of the spring piece 16 and the telescopic piece 18, and inhales the internal smoke through the first channel 11 and the connecting pipe 14 at the end of the sleeve 13. Since there is a lot of smoke, rotate the knob cylinder 6 and use the internal threaded cylinder 17 to lock the end of the puncture needle 1. When secondary inhalation is required, squeeze the pressure rod 4 and the handle 2 again, and the sleeve 13 moves to the inlet of the air outlet channel 10, so that the previous smoke is discharged through the internal filter tip 20. Then move to the first channel 11, release the pressure rod 4, and the position of the puncture needle 1 remains unchanged. Utilize the small diameter of the first channel 11 and the fast inhalation speed to exhaust the smoke; when there is less internal smoke, move the sleeve 13 outside the smoke exhaust pipe 8 to the inlet of the second channel 12, and the balloon 15 communicates with the second channel 12. Then release the pressure rod 4. Due to the setting of the receiving groove 19 at the end of the puncture needle 1, the connecting rod 5 moves in the receiving groove 19. At the same time, the balloon 15 resumes and generates suction under the action of the spring piece 16 and the telescopic piece 18, and due to the large diameter design of the second channel 12 and the slow inhalation speed, it can be connected to the connecting pipe 14 at the end of the sleeve 13 through the second channel 12 at one time, and the internal smoke is inhaled into the balloon 15, thereby exhausting the smoke.

[0034] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0035] The present utility model aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laparoscopic surgical smoke evacuation device, comprising a puncture needle (1), characterized in that: A connecting rod (5) is slidably mounted inside the end of the puncture needle (1), the outside of the connecting rod (5) is sleeved with a base frame (3), a handle (2) is fixedly mounted on the end of the base frame (3), a pressure rod (4) is movably mounted on one side of the handle (2), the top end of the pressure rod (4) passes through the outside of the base frame (3) and is inserted into the connecting rod (5), the pressure rod (4) is used to drive the connecting rod (5) to move inside the base frame (3), and one end of the base frame (3) is sleeved with A knob tube (6), one side of the knob tube (6) is clamped with a smoke exhaust structure (7); the smoke exhaust structure (7) comprises a smoke exhaust pipe (8) sleeved on one side of the knob tube (6); a through hole (9) is formed inside the smoke exhaust pipe (8); the puncture needle (1) passes through the through hole (9); the puncture needle (1) and the through hole (9) are interference fit; an air outlet channel (10) is also formed inside the smoke exhaust pipe (8); the inlet and outlet of the air outlet channel (10) are both formed at the exhaust port. The smoke exhaust pipe (8) is provided with a first channel (11) and a second channel (12) inside the smoke exhaust pipe (8), the diameter of the second channel (12) is larger than the diameter of the first channel (11), the first channel (11) and the second channel (12) are connected to the through hole (9), and the outlets of the first channel (11) and the second channel (12) are both provided outside the smoke exhaust pipe (8); the outside of the smoke exhaust pipe (8) is sleeved with a sleeve (13), and the sleeve (13) ) is provided with ventilation holes corresponding to the first channel (11) and the second channel (12), respectively; the bottom of the sleeve (13) is connected to a connecting tube (14); the sleeve (13) is provided with an opening connected to the connecting tube (14); the end of the connecting tube (14) is fixedly connected to a balloon (15); a spring sheet (16) is also installed on the balloon (15); the two ends of the spring sheet (16) are respectively fixedly installed on the inner side of the handle (2) and the pressure rod (4).

2. A laparoscopic surgery smoke evacuation device according to claim 1, characterized in that: A threaded cylinder (17) is fixedly mounted inside the knob cylinder (6), a threaded portion corresponding to the threaded cylinder (17) is arranged outside the end of the puncture needle (1), and a receiving groove (19) for receiving the sliding of the connecting rod (5) is provided at the end of the puncture needle (1).

3. A laparoscopic surgery smoke evacuation device according to claim 1, characterized in that: An opening corresponding to the top end of the pressure rod (4) is provided inside the connecting rod (5), and the handle (2) and the pressure rod (4) are hingedly connected to each other.

4. The laparoscopic surgery smoke evacuation device according to claim 1, characterized in that: A telescopic piece (18) is installed between the handle (2) and the pressure rod (4); the telescopic piece (18) is an arc-shaped structure, and the telescopic piece (18) is distributed in a mirror image on the outside of the balloon (15).

5. The laparoscopic surgery smoke evacuation device according to claim 1, characterized in that: The inlets of the first channel (11) and the second channel (12) are both axially arranged in sequence on the smoke exhaust pipe (8), and the first channel (11) and the second channel (12) are staggered in distribution, and the inlet and outlet of the air outlet channel (10) are both arranged on the smoke exhaust pipe (8).

6. The laparoscopic surgery smoke evacuation device according to claim 1, characterized in that: The air outlet channel (10) is an arc-shaped structure, and a filter tip (20) is arranged inside the air outlet channel (10).

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