Surgical smoke collection and filtration device

Abstract

The surgical smoke collection and filtration device collects and filters the smoke and waste gas generated during surgery. The surgical smoke collection and filtration device consists of a box body, a box cover, a sealing ring, a control unit, a negative pressure device, a solenoid valve, a plate filter element, and a buckle. The control unit consists of a power switch, a manual switch, a foot switch, an overcurrent protector, and a negative pressure setting controller. The negative pressure setting controller consists of three parts: negative pressure setting, negative pressure control, and negative pressure value display. The partition divides the box body into a negative pressure box and a filter box; an array slot is set in the filter box, and the filter element adopts a plate type. The plate filter element is inserted into the slot and filtered at multiple stages. The box cover is installed on the box body, the sealing ring is installed under the box cover, and the box body and the box cover are equipped with matching buckles. Fixing the buckle can make the negative pressure box a sealed space. The surgical smoke collection and filtration device is reasonably designed, easy to use, safe and reliable.

Description

Technical Field

[0001] The invention relates to gas collection and filtration, in particular to a surgical smoke collection and filtration device. Background Art

[0002] Due to the application of high-frequency electric knife, ultrasonic knife, laser therapy machine and other equipment in medical and health care, the pure manual operation of separation, cutting, hemostasis of tissues and organs has been changed to equipment assistance, which improves the speed of surgery and the safety of surgery. The application principle of high-frequency electric knife, ultrasonic knife, laser therapy machine and other equipment is to use thermal effect. When using high-frequency electric knife, ultrasonic knife, laser therapy machine and other equipment for surgery, the high temperature generated in a very short time can make the biological tissue expand and gasify rapidly, produce mechanical pressure effect, and the biological tissue is cut, separated and solidified. At the same time, a large amount of smoke and waste gas from the gasification of human tissue will be generated. These smoke and waste gas are all emitted in the operating room, which not only affects the work, but also affects the personal health of the staff and patients. Especially during the operation, due to the cutting and separation of tissues, a large amount of smoke and waste gas of gasified tissues are generated, which affects the vision of the surgeon and interferes with the normal operation; in addition, the smoke of gasified tissues has a peculiar smell and is harmful, which deteriorates the surgical environment and affects the physical health of the surgeon. The operation on patients with infectious diseases is more dangerous. Summary of the invention

[0003] In the current surgical process, when high-frequency electric knife, ultrasonic knife, laser therapy machine is used to cut, separate, and coagulate tissue, smoke and waste gas are generated, and these smoke and waste gas are usually discharged directly into the operating room without being filtered and treated before being discharged. In order to ensure the smooth and safe operation, facilitate the operation, purify the ambient air, and reduce the chance of infection, the smoke and waste gas generated during the operation are collected in time during the operation, and then discharged after effective filtration. The smoke and waste gas generated during the operation have their characteristics: 1. There are few points of generation, usually only one; 2. The area of ​​generation is small, only at the contact point between the surgical instrument and the human tissue. To achieve this purpose, a surgical smoke collection and filtration device is designed. This type of collection generally has a hose directly connected to the corresponding surgical instrument, and the operation is performed while suction; or one person performs the operation, and the other collects (attracts) smoke and waste gas. That is, when smoke and waste gas are generated, the guide hose is used to directly attract and collect the smoke and waste gas.

[0004] The surgical smoke collection and filtration device has two main functions: 1. Collect smoke and waste gas; 2. Filter the collected smoke and waste gas. The collected smoke and waste gas are provided by the power equipment to complete the collection task, and the collected smoke and waste gas are filtered in multiple stages by several filter elements with different functions.

[0005] The surgical smoke collection and filtration device consists of a box body, a box cover, a sealing ring, a control unit, a negative pressure device, a solenoid valve, a plate filter element, and a buckle. The control unit consists of a power switch, a manual switch, a foot switch, an overcurrent protector, and a negative pressure setting controller. The power switch, the overcurrent protector, the negative pressure setting controller, and the negative pressure device are connected in series; the manual switch and the foot switch are connected in parallel and then connected in series with the power switch, the overcurrent protector, and the solenoid valve; the negative pressure setting controller consists of three parts: negative pressure setting, negative pressure control, and negative pressure value display.

[0006] The partition divides the box into two parts: a negative pressure box and a filter box. A hole - a connecting port - is set in the partition, which is the passage between the negative pressure box and the filter box. An array of slots is set in the filter box. The filter element adopts a plate type. The plate filter element is inserted into the slot, a box cover is installed on the box, a sealing ring is installed under the box cover, and matching buckles are provided on the box body and the box cover.

[0007] The negative pressure device and the solenoid valve are installed outside the box or inside the negative pressure box; the air inlet of the negative pressure device is placed inside the negative pressure box, and the air outlet of the negative pressure device is placed on the connecting port in the partition, and the hole is closed. The two ports of the solenoid valve are respectively installed on the inside and outside of the negative pressure box, and the outside can be connected to a hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0009] Figure 1 It is a schematic diagram of the structure of the present invention.

[0010] Figure 1 1. Box body; 2. Box cover; 3. Sealing ring; 4. Control unit; 5. Negative pressure device; 6. Solenoid valve; 7. Plate filter element; 8. Hook; 9. Power switch; 10. Manual switch; 11. Foot switch; 12. Overcurrent protector; 13. Negative pressure setting controller; 14. Exhaust port; 15. Slot; 16. Partition; 17. Connection port; 18 Negative pressure box; 19. Filter box. DETAILED DESCRIPTION

[0011] The surgical smoke collecting and filtering device comprises a box body (1), a box cover (2), a sealing ring (3), a control unit (4), a negative pressure device (5), a solenoid valve (6), several plate-type filter elements (7) and an array of darts (8).

[0012] The box body (1) is made of an airtight hard plate material into a rectangular parallelepiped, and the material may be metal, engineering plastic, etc. A partition (16) is arranged in the rectangular parallelepiped to divide the box body (1) into two spaces: a negative pressure box (18) and a filter box (19). The negative pressure box (18) acts as a buffer zone, and a basically stable negative pressure value is maintained in the box; a hole (connection port) (17) is arranged in the partition (16). The filter box (19) is provided with an array of slots (15), usually three to four groups. An exhaust hole, namely, an exhaust port (14), is provided at the end of the filter box (10), and the gas filtered by multiple stages is discharged from the exhaust port (14). A movable box cover (2) is installed above the box body (1), and a sealing ring (3) is installed below the box cover (2). Several pairs of buckles (8) are installed on the box body (1) and the box cover (2). When the box cover (2) and the box body (1) are closed, the buckles (8) are used to fix them to form a sealed space (except the exhaust port). The sealing ring (3) is used to enhance the sealing between the box cover (2) and the box body (1).

[0013] The box cover (2) can be made into an integral body or two independent parts, covering the negative pressure box (18) and the filter box (19) respectively. The box cover (2) of the filter box (19) can be a whole plate or a slot can be provided therein, and the plate filter element (7) can be directly inserted from the box cover (2) into the slot (15) in the box body (1), and then fixed and sealed. In this way, it is more convenient to replace the filter element.

[0014] There are two common ways to collect gas: 1. Range hood and vacuum cleaner; 2. Negative pressure. Since there are few points (usually only one) producing smoke and waste gas during surgery, the amount produced is small, the guide tube is long and thin, and the negative pressure gas collection method can be easily set and consumes little power, so the negative pressure collection method can be selected and a negative pressure device can be used.

[0015] The negative pressure device (5) can be a negative pressure suction device, and the negative pressure suction device can use a motor or an electromagnetic pump as a power source. The negative pressure device (5) is selected to be placed inside or outside the negative pressure box (18) according to the space of the negative pressure box (18) and the volume of the negative pressure device (5). The air inlet of the negative pressure device (5) is placed inside the negative pressure box (18), and the terminal of the air outlet of the negative pressure device (5) is placed on the connecting port (17) in the partition (16), and the connecting port (17) is closed. The negative pressure device (5) has two functions: 1. The negative pressure box (18) becomes a negative pressure area, and the negative pressure is used to absorb smoke and waste gas into the negative pressure box (18); 2. The gas in the negative pressure box (18), the gas discharged from the outlet of the negative pressure device (5) (collected smoke and waste gas) is sent to the filter box (19), and the gas filtered by the multi-stage filter element is discharged into the room through the exhaust port (14) in the filter box (19).

[0016] Due to the different types of surgeries, the properties of the smoke and waste gas generated are different, so the filtering treatment methods must also be different. In order to meet the needs of different surgeries, multi-stage filtration is adopted; in order to facilitate the replacement of the filter element, the filter element adopts a plate type (rectangular parallelepiped), and the core of the plate filter element (7) is made of different materials to form filter elements with different functions. The filter element functions: filtering fine particles in the smoke, removing odors, absorbing and killing bacteria, etc. According to the needs of the surgery, filter elements with different functions and quantities are selected to form a filter element group suitable for the surgery. The plate filter element (7) is inserted into the slot (15) in the filter box (19). Several holes, namely, exhaust ports (14), are set in the box plate behind the last filter plate of the filter box (19). The exhaust ports (14) discharge the gas filtered by multiple stages out of the box body to the operating room.

[0017] The electromagnetic valve (6) can be arranged inside the negative pressure box (18) or outside the box body (1); one end of the electromagnetic valve (6) is installed outside the negative pressure box (18) and can be connected to a hose, and the other end is arranged inside the negative pressure box (18).

[0018] The control unit (4) is composed of a power switch (9), a manual switch (10), a foot switch (11), an overcurrent protector (12), and a negative pressure setting controller (13). The power switch (9), the overcurrent protector (12), the negative pressure setting controller (13), and the negative pressure device (5) are connected in series; the power switch (9) is selected to be a switch with an indicator light, and a power indicator light is not required to be set separately. When the power switch (9) is connected, the negative pressure device (5) can be powered on and work. The negative pressure setting controller (13) is composed of three parts: negative pressure setting, negative pressure control, and negative pressure value display. It is responsible for setting the negative pressure value in the negative pressure box and displaying the negative pressure value in the negative pressure box. According to the actual negative pressure value in the negative pressure box, it controls the operation and stop of the negative pressure device (5). The connecting guide tube used in the surgical smoke collection and filtering device is generally long in length and thin in inner diameter, that is, the internal resistance is large, and the function of collecting smoke and exhaust gas is determined by the negative pressure value. Setting the negative pressure value of the negative pressure box also determines the collection capacity. The manual switch (10) and the foot switch (11) are connected in parallel and then connected in series with the power switch (9), the overcurrent protector (12) and the electromagnetic valve (6); the surgical smoke collection and filtering device is provided with two control modes, manual and foot control. When the manual switch (10) or the foot switch (11) is closed, the electromagnetic valve (6) can be powered and opened, and the negative pressure box (18) can be connected to the outside world to collect relevant smoke and gas through the guide hose. The control unit (4) is made into a panel and placed on the side plate of the box body (1).

Claims

1. A surgical smoke collection and filtering device, characterized in that The surgical smoke collecting and filtering device is composed of a box body (1), a box cover (2), a sealing ring (3), a control unit (4), a negative pressure device (5), a solenoid valve (6), a plate filter element (7) and a latch (8); the control unit (4) of the surgical smoke collecting and filtering device is composed of a power switch (9), a manual switch (10), a foot switch (11), an overcurrent protector (12) and a negative pressure setting controller (13); the power switch (9), the overcurrent protector (12), the negative pressure setting controller (13) and the negative pressure device (5) are connected in series; the manual switch (10), the foot switch (11), the overcurrent protector (12), the negative pressure setting controller (13) and the negative pressure device (5) are connected in series; The movable switch (10) is connected in parallel with the foot switch (11), and then connected in series with the power switch (9), the overcurrent protector (12), and the electromagnetic valve (6); the negative pressure setting controller (13) is composed of three parts: negative pressure setting, negative pressure control, and negative pressure value display; the negative pressure device (5) uses a negative pressure suction device, which uses a motor or an electromagnetic pump as a power source to make the negative pressure box (18) a sealed space, and uses negative pressure to absorb smoke and exhaust gas into the negative pressure box (18); the gas in the negative pressure box (18) passes through the negative pressure device (5) ) is sent to the filter box (19), and the gas after being filtered by the multi-stage filter element is discharged into the room through the exhaust port (14) in the filter box (19); the partition (16) divides the box body (1) into two parts: the negative pressure box (18) and the filter box (19); a connecting port (17) is provided in the partition (16); an array slot (15) is provided in the filter box (19), and the filter element is a plate type, and the plate type filter element (7) is inserted into the slot (15); a box cover (2) is installed on the box body (1), and a sealing ring is installed under the box cover (2) (3); the box body (1) and the box cover (2) are both provided with matching buckles (8); the negative pressure device (5) and the solenoid valve (6) are installed outside the box body or inside the negative pressure box; the air inlet of the negative pressure device (5) is arranged in the negative pressure box (18), and the air outlet terminal of the negative pressure device (5) is arranged on the connecting port (17) in the partition (16); the two ports of the solenoid valve (6) are respectively installed on the inner and outer sides of the negative pressure box (18), and the outer side is connected to a hose; the control unit (4) is made into a panel and arranged on the side panel of the box body (1).

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