Smoke purification device for laparoscopic surgery

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a smoke purification device for laparoscopic surgery, which mainly comprises a cannula provided with a main branch pipe and an auxiliary branch pipe, the main branch pipe is provided with a first end and a second end which are opposite to each other, the auxiliary branch pipe is connected with the main branch pipe, the main branch pipe is provided with a first cavity channel, and the first cavity channel is communicated with the second cavity channel. The first end is communicated with the second end through the first cavity channel, and the second cavity channel is communicated with the auxiliary branch pipe; the second cavity channel is provided with a first port and a second port, the first port of the second cavity channel is communicated with the auxiliary branch pipe, and the second port of the second cavity channel is located at the second end of the main branch pipe; the negative pressure suction mechanism is connected with the auxiliary branch pipe, and the negative pressure suction mechanism is constructed to enable the second cavity channel to generate negative pressure; the problems that a laparoscope shielded or attached by smoke is repeatedly taken out of the body of a patient, a lens is wiped, the operation process is affected, and the operation risk is increased are mainly solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a laparoscopic surgery smoke purification device. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgery for the abdominal cavity. Compared with traditional abdominal surgeries, laparoscopic surgeries have many advantages such as smaller wounds, less tissue damage, and reduced pain. During laparoscopic surgeries, carbon dioxide gas needs to be filled into the patient's abdominal cavity to improve the field of view for internal operations. However, during the surgery, electrocoagulation instruments are required. When in use, a large amount of smoke is generated after the electrocoagulation instrument contacts human tissues, which blocks the laparoscopic lens and even adheres to the lens of the laparoscope, resulting in the need for the surgeon to repeatedly remove the laparoscope from the patient's body to wipe the lens, thus affecting the surgical process and increasing the surgical risk.

[0003] The utility model aims at the above problems and provides a laparoscopic surgery smoke purification device. Content of the Utility Model

[0004] In order to overcome the problems raised in the background art, the utility model adopts the following technical solutions:

[0005] A laparoscopic surgery smoke purification device, comprising:

[0006] A cannula having a main branch pipe and a secondary branch pipe. Among them, the main branch pipe has a first end and a second end opposite to each other, the secondary branch pipe is connected to the main branch pipe. Among them, the main branch pipe has a first channel that communicates the first end with the second end, and a second channel that communicates with the secondary branch pipe;

[0007] The second channel has a first port and a second port. Among them, the first port of the second channel is connected to the secondary branch pipe, and the second port of the second channel is located at the second end of the main branch pipe;

[0008] A negative pressure suction mechanism connected to the secondary branch pipe, wherein the negative pressure suction mechanism is configured to be able to generate negative pressure in the second channel.

[0009] Furthermore, the second channel is arranged between the inner wall of the first channel and the outer wall of the cannula.

[0010] Furthermore, there are several second channels, and several second channels are all connected to the secondary branch pipe.

[0011] Furthermore, several second channels are circumferentially arrayed with the axis of the first channel as the reference.

[0012] Further, the second port of the second channel is formed on the outer wall of the main branch pipe, and the distance between the second port and the second end of the main branch pipe is less than the distance between the second port and the first end of the main branch pipe.

[0013] In some embodiments of the present application, the auxiliary branch pipe has a first joint, wherein the negative pressure suction mechanism is connected to the first joint through a pipeline; more specifically, the first joint has a connection section and a sealing ring, wherein the sealing ring is arranged around the outer wall of the connection section.

[0014] In some embodiments of the present application, the negative pressure suction mechanism includes:

[0015] A housing having a first chamber and a second chamber, wherein the first chamber communicates with the second chamber; the second chamber communicates with the auxiliary branch pipe;

[0016] A driving member disposed in the first chamber, wherein the driving member has an output shaft, and the output shaft extends from the first chamber into the second chamber;

[0017] A fan blade disposed in the second chamber and connected to the output shaft of the driving member, wherein under the action of the output shaft, the fan blade rotates in the second chamber, so that a negative pressure is generated in the second chamber.

[0018] Further, the negative pressure suction mechanism further includes: a power supply assembly and a switch assembly, wherein both the power supply assembly and the switch assembly are electrically connected to the driving member, and the switch assembly is configured to control the start and stop of the driving member.

[0019] Further, the power supply assembly includes: a storage battery, wherein the storage battery is disposed in the first chamber and electrically connected to the driving member.

[0020] Further, the switch assembly is a foot switch.

[0021] Advantages of the present utility model:

[0022] 1. By providing the sleeve and the negative pressure suction mechanism, during use, the sleeve can be used to form a connection relationship with the electrocoagulation instrument and enter the patient's body along with the electrocoagulation instrument. The negative pressure suction mechanism is used to extract the smoke generated during the operation from the sleeve and away from the patient's body, thereby avoiding the smoke from blocking the surgical field of view and reducing the surgical risk.

[0023] 2. By arranging a main branch pipe and a secondary branch pipe inside the cannula, during use, the electrocoagulation instrument passes through the main branch pipe, so that during the operation, the part of the main branch pipe enters the patient's body along with the electrocoagulation instrument and changes with the change of the orientation of the electrocoagulation instrument. After the smoke is generated during the operation, the smoke can always be aspirated through the second channel at a position close to the smoke. Description of the Drawings

[0024] Figure 1 Schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Schematic diagram of the cannula structure of the present invention;

[0026] Figure 3 Schematic diagram of the structures of the first channel and the second channel of the present invention;

[0027] Figure 4 Cross-sectional view of the cannula of the present invention;

[0028] Figure 5 For the present invention Figure 4 Partial enlarged schematic view of the cannula at position C of the present invention;

[0029] Figure 6 Cross-sectional view of the negative pressure suction mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 Partial enlarged schematic view of the negative pressure suction mechanism at position D of the present invention;

[0031] In the figures, 1. Cannula; 11. Main branch pipe; 111. First channel; 12. Secondary branch pipe; 121. Second channel; 122. First joint; 2. Negative pressure suction mechanism; 21. Housing; 211. First chamber; 212. Second chamber; 22. Driving member; 23. Fan blade; 24. Foot switch; 25. Control main board. Detailed Description of the Invention

[0032] The following describes clearly and completely the technical solutions in the embodiments of the present invention through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Figure 1—3 shows the main technical content of this embodiment. This specific embodiment provides a laparoscopic surgical smoke purification device, which includes:

[0034] A cannula 1 having a main branch pipe 11 and a sub-branch pipe 12. Among them, the main branch pipe 11 has a first end and a second end opposite to each other, and the sub-branch pipe 12 is connected to the main branch pipe 11. Among them, the main branch pipe 11 has a first channel 111 that connects the first end and the second end, and a second channel 121 that is connected to the sub-branch pipe 12;

[0035] A negative pressure suction mechanism 2 is connected to the sub-branch pipe 12. Among them, the negative pressure suction mechanism 2 is configured to be able to generate an attraction force in the second channel 121.

[0036] During use, the electrocoagulation instrument is inserted into the first channel 111 from the first end of the main branch pipe 11 and extends out from the second end. Then, the negative pressure suction structure is connected to the sub-branch pipe 12. During the operation, when the electrocoagulation instrument is used to cut or perform hemostasis on the patient's internal tissue, the negative pressure suction mechanism 2 generates an attraction force in the second channel 121 to suck the smoke generated after the electrocoagulation instrument contacts the patient's tissue.

[0037] As can be understood by those skilled in the art, the electrocoagulation instrument is an electrocoagulation instrument used in laparoscopic surgery, such as an electrocoagulation knife, an electrocoagulation hook, an electrocoagulation forceps, etc.

[0038] Reference Figure 2 —5, in this embodiment, the second channel 121 is arranged between the inner wall of the first channel 111 and the outer wall of the cannula 1. More specifically, the second channel 121 has a first port and a second port. Among them, the first port of the second channel 121 is connected to the sub-branch pipe 12, and the second port of the second channel 121 is located at the second end of the main branch pipe 11. During use, the second end of the main branch pipe 11 enters the patient's body along with the electrocoagulation instrument, and the smoke generated after the electrocoagulation instrument contacts the patient's tissue is sucked into the second channel 121 from the second port of the second channel 121, thereby preventing the smoke from blocking the laparoscopic lens.

[0039] Reference Figure 3 —6, in this embodiment, there are several second channels 121, and several second channels 121 are all connected to the sub-branch pipe 12. During use, each second channel 121 generates an attraction force under the action of the negative pressure suction device, thereby improving the purification efficiency of the smoke generated during the operation.

[0040] More specifically, a plurality of second channels 121 are circumferentially arrayed with respect to the axis of the first channel 111; preferably, the main branch pipe 11 further has a connecting channel, wherein the first port of each second channel 121 communicates with the connecting channel, and the auxiliary branch pipe 12 also communicates with the connecting channel. Thus, under the action of the negative pressure suction mechanism 2, an attraction force is generated in each second channel 121, thereby sucking and purifying the smoke generated during the operation.

[0041] Alternatively, the second port of the second channel 121 is formed on the outer wall of the main branch pipe 11, and the distance between the second port and the second end of the main branch pipe 11 is less than the distance between the second port and the first end of the main branch pipe 11.

[0042] Reference Figure 4 —6, in this embodiment, the auxiliary branch pipe 12 has a first joint 122, wherein the negative pressure suction mechanism 2 is connected to the first joint 122 through a pipeline; more specifically, the first joint 122 has a connecting section and a sealing ring, wherein the sealing ring is arranged around the outer wall of the connecting section. During use, the negative pressure suction mechanism 2 is connected to the auxiliary branch pipe 12 through the first joint 122. By arranging the sealing ring on the outer wall of the connecting section, after the negative pressure suction mechanism 2 is connected to the auxiliary branch pipe 12 through a pipeline, the connection between the two is in a sealed state, thereby avoiding air leakage during use.

[0043] Reference Figure 6 —7, in this embodiment, the negative pressure suction mechanism 2 includes: a housing 21, a driving member 22, a fan blade 23, and a control module. The housing 21 has a first chamber 211 and a second chamber 212, wherein the first chamber 211 communicates with the second chamber 212; the second chamber 212 communicates with the auxiliary branch pipe 12; the driving member 22 is arranged in the first chamber 211, wherein the driving member 22 has an output shaft, and the output shaft extends from the first chamber 211 into the second chamber 212; the fan blade 23 is arranged in the second chamber 212 and is connected to the output shaft of the driving member 22. Among them, under the action of the output shaft, the fan blade 23 rotates in the second chamber 212, so that a negative pressure is generated in the second chamber 212; the control module is arranged in the first chamber 211 and is electrically connected to the driving member 22.

[0044] Reference Figure 5—7. More specifically, the housing 21 has a connection port communicating with the second chamber 212. Through this connection port, it is connected to the auxiliary branch pipe 12 through pipelines, thereby establishing a connection relationship between the two. In addition, the housing 21 also has an air outlet. Under the operation of the driving member 22, the output shaft drives the fan blade 23 to rotate to generate wind pressure, forcing the smoke generated during the operation to enter the second chamber 212 through the second channel 121, and discharging the smoke from the air outlet.

[0045] More specifically, the driving member 22 is a reduction motor, and the driving member 22 is fixedly arranged in the first chamber 211.

[0046] Furthermore, the control module includes: a power supply module and a control main board 25. Both the power supply module and the control main board 25 are electrically connected to the driving member 22. The control main board 25 is configured to control the start and stop of the driving member 22. More specifically, the power supply component includes: a storage battery, which is arranged in the first chamber 211 and is electrically connected to the driving member 22 and the control main board 25. During use, the storage battery supplies power to the driving member 22, so that the output shaft of the driving member 22 can enter the working state.

[0047] Alternatively, the power supply component includes: a power cord and a power connector. One end of the power cord is connected to the control main board 25, and the other end of the power cord is connected to the power connector. During use, an external power supply is connected through the power connector, and the driving member 22 is supplied with power through the control main board 25.

[0048] Specifically, the control main board 25 has a start-stop switch. Through the start-stop switch, the driving member 22 can be switched between the on state and the off state.

[0049] Alternatively, the switch component is a foot switch 24. The foot switch 24 is electrically connected to the control main board 25. During use, the foot switch 24 is placed on the ground. During use, the operator steps on the foot switch 24 to make the driving member 22 enter the working state, so that the output shaft drives the fan blade 23 to rotate to generate wind pressure, forcing the smoke generated during the operation to enter the second chamber 212 through the second channel 121, and discharging the smoke from the air outlet.

[0050] Usage method of the present utility model:

[0051] 1. Sheath the sleeve on the outer wall of the straight rod part of the electrocoagulation instrument, and make the second port of the second channel close to the tip (electrocoagulation end) of the electrocoagulation instrument; then connect the negative pressure suction mechanism to the auxiliary branch pipe.

[0052] 2. When cutting or performing hemostasis operations on the patient's internal tissues and generating smoke, the driving member is driven by a foot switch to drive the fan blades to rotate. The rotation of the fan blades generates wind pressure, causing the smoke to be sucked into the second chamber and discharged through the air outlet;

[0053] 3. After the operation is completed, disconnect the connection between the negative pressure suction mechanism and the auxiliary branch pipe, and then withdraw the electrocoagulation instrument from the main branch pipe.

[0054] The description of the above embodiments is only for understanding the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can still be made to the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.

Claims

1. A laparoscopic surgery smoke purification device, characterized in that, It includes a sleeve having a main branch pipe and a secondary branch pipe. The main branch pipe has a first end and a second end opposite to each other. The secondary branch pipe is connected to the main branch pipe. The main branch pipe has a first channel that communicates the first end with the second end, and a second channel that communicates with the secondary branch pipe. The second channel has a first port and a second port. The first port of the second channel is connected to the secondary branch pipe, and the second port of the second channel is located at the second end of the main branch pipe. a negative pressure suction mechanism connected to the secondary branch pipe. The negative pressure suction mechanism is configured to be able to create a negative pressure in the second channel.

2. The laparoscopic surgery smoke purification device according to claim 1, characterized in that, The second channel is disposed between the inner wall of the first channel and the outer wall of the sleeve.

3. The laparoscopic surgery smoke purification device according to claim 2, characterized in that, There are several second channels, and all of the several second channels are connected to the secondary branch pipe.

4. The laparoscopic surgery smoke purification device according to claim 3, wherein, The several second channels are circumferentially arrayed with the axis of the first channel as a reference.

5. The laparoscopic surgical smoke purification device according to claim 1, wherein, The second port of the second channel is formed on the outer wall of the main branch pipe, and the distance between the second port and the second end of the main branch pipe is less than the distance between the second port and the first end of the main branch pipe.

6. The laparoscopic surgery smoke purification device according to claim 1, wherein The secondary branch pipe has a first connector, and the negative pressure suction mechanism is connected to the first connector by a pipeline. More specifically, the first connector has a connecting section and a sealing ring, and the sealing ring is disposed around the outer wall of the connecting section.

7. The laparoscopic surgical smoke purification device according to claim 1, characterized in that, The negative pressure suction mechanism includes: a housing having a first chamber and a second chamber. The first chamber communicates with the second chamber, and the second chamber is connected to the secondary branch pipe. a driving member disposed in the first chamber. The driving member has an output shaft that extends from the first chamber into the second chamber. a fan blade disposed in the second chamber and connected to the output shaft of the driving member. Under the action of the output shaft, the fan blade rotates in the second chamber, causing a negative pressure to be generated in the second chamber.

8. The laparoscopic surgical smoke purification device according to claim 7, characterized in that, The negative pressure suction mechanism further includes a power supply assembly and a switch assembly. The power supply assembly and the switch assembly are both electrically connected to the driving member, and the switch assembly is configured to control the start and stop of the driving member.

9. The laparoscopic surgical smoke purification device according to claim 8, wherein The power supply assembly includes a storage battery, and the storage battery is disposed in the first chamber and electrically connected to the driving member.

10. The laparoscopic surgery smoke purification device according to claim 8, wherein, The switch assembly is a foot switch.

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