A surgical smoke evacuation lance

Abstract

The utility model discloses a surgical smoke exhaust puncture ware, the puncture ware is composed of puncture portion, hose and three -way joint, the puncture portion includes handle end, the handle end front connection puncture needle, and the puncture needle has the inner tube in the sleeve, and the inner tube front end is hemispherical, and the side wall of the front end of inner tube is equipped with suction hole, the rear end of handle end is valve body and the pipe, the handle end penetrates cavity, and the spring is installed in the cavity, and one end of spring is connected the rear end of inner tube through moving part, and the other end of spring is fixed in the cavity through fixing part, and the inner tube, moving part, spring, fixing part, valve body and the pipe are through, are used for liquid or gas delivery, the utility model discloses the structure of inner tube, spring etc. combination makes, and the inner tube can be telescopic in puncture needle, when there is no pressure in the inner tube, the inner tube is stretched out, and one aspect in this state, can prevent the user from being pricked when not using, on the other hand, after puncture needle is placed into abdominal cavity, when the inner tube is not extruded, the inner tube that stretches out can protect the tissue in abdominal cavity and prevent being pricked.

Description

Technical Field

[0001] This utility model belongs to the field of surgical instrument technology, specifically relating to a surgical smoke extraction puncture device. Background Technology

[0002] The widespread use of electrosurgical equipment has made modern medicine more convenient and effective. However, it has also generated a large amount of surgical smoke during the operation, posing a serious health hazard to our staff. Surgical smoke contains harmful chemical components. When laparoscopic resection is completed, the concentration of CO can reach 100-1900 mg / L, far exceeding the set standard of 35 mg / L. The exhaust of a large amount of smoke can cause dizziness in the surgeon and affect the progress of the operation. It is necessary to remove the smoke during the operation. On the other hand, the smoke can blur the lens, affect the intraoperative field of vision, prolong the operation time and reduce the quality of the operation.

[0003] In some operating rooms, a regular needle is inserted into the abdominal cavity under laparoscopic monitoring and connected to negative pressure suction to achieve continuous smoke removal. These connections all require suitable connectors and do not form a final integrated structure. If the patient's abdominal wall is thick, the needle can easily damage blood vessels or intestines. Furthermore, during needle-assisted smoke removal, under negative pressure, the small diameter of the needle can easily cause blockage of aspirated tissue particles. For abdominal surgery, laparoscopes are available in multi-port and single-port versions. Multi-port laparoscopes, especially three-port ones, are the most common. Their advantages are that the observation port and the operating port are separate, allowing the surgeon to flexibly choose the operating incision, making the surgery easier and facilitating smoke removal. The disadvantage is that it requires two additional small incisions. In contrast, a single-port laparoscope has only one operating port. Surgical instruments completely fill the operating port, almost blocking the side smoke removal port of the single-port laparoscope, resulting in poor smoke removal. Summary of the Invention

[0004] The purpose of this invention is to design a surgical fumigation puncture device that can be used in perfect conjunction with a negative pressure device, while preventing the needle from damaging blood vessels or intestines.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A surgical fume extraction trocar, comprising a trocar, a tubing, and a three-way connector, wherein the trocar includes a handle end, a trocar needle connected to the front of the handle end, an inner tube sleeved inside the trocar needle, the front end of the inner tube being hemispherical, and a suction hole formed on the front side wall of the inner tube; the rear end of the handle end comprises a valve body and a connecting pipe, the handle end penetrating a cavity, a spring installed inside the cavity, one end of the spring being connected to the rear end of the inner tube via a movable component, and the other end of the spring being fixed inside the cavity via a fixing component; the inner tube, movable component, spring, fixing component, valve body, and connecting pipe are interconnected for liquid or gas delivery.

[0007] Furthermore, both the puncture needle and the inner tube are made of stainless steel.

[0008] Furthermore, the cavity is cylindrical, the fixing member is ring-shaped for fixing the spring, and the moving member is specifically a variable diameter pipe. The large diameter end of the moving member moves within the cavity, and the lower diameter end of the moving member can be inserted into the through hole at the handle end.

[0009] Furthermore, the valve body includes a valve body housing, within which a valve core is installed. The valve core is driven by a movable handle to control the flow rate of the liquid or gas being drawn in.

[0010] Furthermore, an adjuster is added to the hose.

[0011] Furthermore, the tee is used to connect the negative pressure suction device and the suction tube.

[0012] The above technical solution can achieve the following beneficial effects:

[0013] This utility model has a simple overall structure. Through the three-way structure, it can be connected with various negative pressure suction devices in the operating room or suction devices on the operating table, with a high degree of compatibility and a wide range of applications.

[0014] This utility model uses a combination of an inner tube and a spring, allowing the inner tube to extend and retract within the puncture needle. When there is no pressure on the inner tube, it extends out. This configuration prevents injury to the user when not in use, and also protects the abdominal tissues from injury when the puncture needle is inserted into the abdominal cavity and there is no pressure on the inner tube.

[0015] The inner tube of this utility model has a suction port, from which surgical smoke is collected or disposed of along the through-channel, achieving the purpose of smoke recovery and exhaust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a smoke extraction puncture device.

[0017] Figure 2 This is a diagram of the internal structure of the puncture site.

[0018] Figure 3 This is a diagram showing the inner tube extending out.

[0019] In the picture:

[0020] In the diagram: 1. Puncture site; 2. Tube; 3. Regulator; 4. Tee. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1-3As shown, a surgical fume extraction trocar is provided. The trocar consists of a trocar part 1, a flexible tube 2, and a three-way connector 4. The trocar part 1 includes a handle end 16, with a trocar needle 11 connected to the front of the handle end. An inner tube 12 is fitted inside the trocar needle. The front end of the inner tube is hemispherical, and a suction hole 13 is opened on the front side wall of the inner tube. The rear end of the handle end is a valve body 18 and a connecting tube 19. The handle end penetrates a cavity, and a spring 15 is installed in the cavity. One end of the spring is connected to the rear end of the inner tube through a moving part 14, and the other end of the spring is fixed in the cavity through a fixing part 17. The inner tube 12, the moving part 14, the spring, the fixing part, the valve body, and the connecting tube are connected and used for liquid or gas delivery.

[0023] Both the puncture needle and the inner tube are made of stainless steel.

[0024] The cavity is cylindrical, the fixing part is ring-shaped for fixing the spring, and the moving part is specifically a variable diameter pipe. The large diameter end of the moving part moves in the cavity, and the lower diameter end of the moving part can be inserted into the through hole of the handle end.

[0025] The valve body 18 includes a valve body shell, in which a valve core 181 is installed. The valve core is driven by a movable handle 182 to control the flow rate of the liquid or gas being drawn in.

[0026] An adjuster 3 is also added to the hose 2.

[0027] The tee 4 is used to connect the negative pressure suction device and the suction tube. Specific Implementation

[0028] When using, follow Figure 1 As shown, a tubing 2 is inserted into the connecting tube 19 at the rear end of the puncture site 1. A regulator 3 is installed on the tubing. This regulator is a flow regulator used on the infusion set. A tee is installed at the other end of the tubing. One end of the tee can be connected to a negative pressure aspirator, and the other end can be connected to an aspiration tube.

[0029] Example 1: Taking single-port laparoscopic surgery with smoke extraction as an example, the user holds the handle end 16, the puncture needle 11 is directly inserted into the abdominal cavity, and the suction tube is connected to the smoke extraction port on the side of the single-port laparoscopy. In this way, the negative pressure suction device (suction bottle) can be turned on to achieve continuous smoke extraction. By extracting smoke from two places at the same time, the smoke extraction effect is obvious, and the problem of smoke blurring the lens is completely solved, making it more convenient for doctors to use and improving surgical efficiency.

[0030] Example 2: Taking single-port laparoscopic surgery smoke extraction as an example, the surgical smoke generated during the use of the electrosurgical device of this invention is removed. The puncture needle 11 is directly inserted into the abdominal cavity. In this way, the negative pressure suction device (suction bottle) can be turned on to achieve continuous smoke extraction. The suction tube can be connected to the suction device on the operating table, so that liquid or blood seepage on the operating table can be suctioned.

[0031] The above descriptions are all preferred embodiments of this utility model. For those skilled in the art, any modifications to this utility model in various equivalent forms without departing from the principle of this utility model shall fall within the protection scope of the appended claims.

Claims

1. A surgical fumigation trocar, characterized in that: The puncture device consists of a puncture part (1), a flexible tube (2), and a three-way connector (4). The puncture part (1) includes a handle end (16), a puncture needle (11) connected to the front of the handle end, an inner tube (12) inside the puncture needle, the front end of the inner tube being hemispherical, and an aspiration hole (13) opened on the front side wall of the inner tube. The rear end of the handle end is a valve body (18) and a connecting tube (19). The handle end penetrates the cavity, and a spring (15) is installed in the cavity. One end of the spring is connected to the rear end of the inner tube through a moving part (14), and the other end of the spring is fixed in the cavity through a fixing part (17). The inner tube (12), the moving part (14), the spring, the fixing part, the valve body, and the connecting tube are connected and used for liquid or gas delivery.

2. The surgical fume extraction trocar according to claim 1, characterized in that: Both the puncture needle and the inner tube are made of stainless steel.

3. The surgical fumigation trocar according to claim 1, characterized in that: The cavity is cylindrical, the fixing part is ring-shaped for fixing the spring, and the moving part is specifically a variable diameter pipe. The large diameter end of the moving part moves in the cavity, and the lower diameter end of the moving part can be inserted into the through hole of the handle end.

4. The surgical fume extraction trocar according to claim 1, characterized in that: The valve body (18) includes a valve body shell in which a valve core (181) is installed. The valve core is driven by a movable handle (182) to control the flow rate of the liquid or gas being drawn.

5. The surgical fume extraction trocar according to claim 1, characterized in that: An adjuster (3) is also added to the hose (2).

6. The surgical fume extraction trocar according to claim 1, characterized in that: The tee (4) is used to connect the negative pressure suction device and the suction tube.

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