A trocar sleeve capable of automatically exhausting smoke

Abstract

The present invention discloses a puncture sleeve capable of automatically exhausting smoke, comprising a puncture sleeve seat and a puncture sleeve connected to the puncture sleeve seat, the puncture sleeve seat comprising an upper shell and a lower shell, an equipment shell being fixed on the outer wall of the lower shell, the equipment shell comprising an upper cavity and a lower cavity, the upper cavity being connected to the lower shell, and the upper cavity being provided with a gas blocking valve for blocking the lower shell, the gas blocking valve being installed in the upper cavity through a spring, a talk and a support frame, the upper cavity being connected to a blower, a smoke detection element for detecting smoke and a plurality of smoke holes being provided at the bottom of the puncture sleeve; an electric control board and a battery are provided in the lower cavity, the battery is electrically connected to the smoke detection element through the electric control board and an induction switch, and the battery is electrically connected to the blower through the electric control board. The present invention can extract the generated smoke, and detect and exhaust smoke in real time, accurately and timely.

Description

Technical Field

[0001] The invention relates to a trocar sleeve, in particular to a trocar sleeve capable of automatically exhausting smoke. Background Art

[0002] In recent years, minimally invasive surgery has developed rapidly, and laparoscopic instruments are widely used by surgeons. Therefore, more and higher requirements are put forward for the functionality and convenience of instruments. As a common instrument in minimally invasive surgery, the trocar plays a very important role.

[0003] In the existing laparoscopic surgery, the trocar only exists as a single channel for the instruments to enter and exit. When the high-frequency electric knife is used in the surgery, smoke will be generated, blocking the doctor's surgical field of view. At the same time, the smoke contains living bacteria or cancer cells, which poses a great health threat to patients and doctors. It is necessary to insert a suction tube from another trocar and the doctor manually controls the suction of the smoke. However, the timing and time control of the smoke suction are subject to human uncertainty due to experience. Summary of the invention

[0004] In view of the above technical problems, a puncture tube capable of automatically exhausting smoke is provided. The technical means adopted by the present invention are as follows:

[0005] A puncture tube capable of automatically exhausting smoke, comprising a puncture tube seat and a puncture tube connected to the puncture tube seat, the puncture tube seat comprising an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a cross sealing cap is provided at the bottom of the upper shell, the bottom end of the lower shell is fixedly connected to the puncture tube, an equipment shell is fixed on the outer wall of the lower shell, the equipment shell comprises an upper cavity and a lower cavity, one end of the upper cavity is connected to the lower shell, and this end of the upper cavity is provided with an air blocking valve for blocking the lower shell, a spring support frame is fixed to the other end of the upper cavity, and the air blocking valve is connected to the spring support frame by a spring, a fan installation cavity is provided at one end of the upper cavity close to the spring support frame, and one end of the fan installation cavity is connected to the upper cavity, and the other end of the fan installation cavity is connected to the outside, and a fan is installed in the fan installation cavity;

[0006] The bottom of the puncture tube is provided with a smoke detection element for detecting smoke and a plurality of smoke holes;

[0007] An electric control board and a battery are arranged in the lower cavity. The battery is electrically connected to the smoke detection element through the electric control board and the induction switch, and the battery is electrically connected to the fan through the electric control board.

[0008] A filter cotton is arranged at the connection point between the upper cavity and the lower shell.

[0009] The upper shell and the lower shell are detachably connected via a push button.

[0010] The induction switch includes an induction coil arranged at the bottom of the lower shell.

[0011] The battery provides electric energy for the smoke detection element, the electric control board and the fan, and can also supply power to the smoke detection element, the electric control board and the fan through a power line.

[0012] The induction switch is used to turn on and delay the closing of the smoke detection element. When the high-frequency electric knife passes through the puncture device sleeve seat and the puncture device sleeve, the current on the high-frequency electric knife generates electromagnetic induction on the induction switch, and the induction switch generates a current signal to turn on the smoke detection element. The electric control board controls the smoke detection element to turn on. When the induction switch detects that there is no current in the high-frequency electric knife, or the high-frequency electric knife is detached from the puncture device sleeve, the induction switch delays the closing of the smoke detection element, and the delay time can be set independently according to its own functions.

[0013] The smoke detection element is used to detect whether there is smoke. When there is smoke, the smoke detection element transmits a signal to turn on the fan to the electric control board, and the electric control board controls the operation of the fan. When there is no smoke or the smoke value is lower than the threshold set by its own function, the smoke detection element sends a signal to turn off the fan to the electric control board, and the electric control board turns off the fan.

[0014] The upper shell can be installed with the pleated sealing cap mentioned in the patented visual puncture device (application number 201620355131.6).

[0015] In use: the high-frequency electric knife passes through the puncture tube seat and the puncture tube in turn and enters the human body cavity. After the induction coil detects the current in the high-frequency electric knife, the induction coil itself generates current and transmits the current signal to the electric control board. The electric control board controls the smoke sensing element to turn on. When the head electrode of the high-frequency electric knife cuts or coagulates human tissue and generates smoke, the smoke sensing element detects the smoke and sends a signal to the electric control board. After receiving the signal, the electric control board turns on the fan. The fan works to generate negative pressure in the upper cavity. The spring contracts and the air blocking valve moves into the upper cavity, that is, the passage between the lower shell and the upper cavity is opened. The smoke enters the puncture tube through the smoke hole, passes through the lower shell and enters the upper cavity, and then is discharged through the fan installation cavity. When the smoke sensing element cannot detect smoke or the detected smoke value is lower than the threshold set by the electric control board, the smoke sensing element sends a signal to the electric control board to turn off the fan. At this time, the electric control board turns off the fan. Afterwards, the air blocking valve is reset under the action of the spring to seal the upper cavity and the lower shell. When the induction switch detects that there is no current in the high-frequency electric knife, or the high-frequency electric knife is separated from the puncture device sleeve, the induction switch delays closing the smoke detection element.

[0016] The present invention has the following advantages:

[0017] 1. The smoke generated can be extracted.

[0018] 2. Real-time detection and real-time smoke exhaust, accurate and timely.

[0019] 3. Automatic control, no need for manual operation, reducing manpower waste.

[0020] 4. Multifunctional, it can be used as a passage for functional equipment to enter and exit, and can also be used as an independent smoke exhaust device.

[0021] 5. Battery powered, cordless, flexible and convenient to operate.

[0022] Based on the above reasons, the present invention can be widely promoted in the fields of puncture and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1It is a schematic diagram of the structure of a puncture tube capable of automatically exhausting smoke in a specific embodiment of the present invention.

[0025] Figure 2 It is a schematic structural diagram of a puncture cannula capable of automatically exhausting smoke in a specific embodiment of the present invention when in use.

[0026] Figure 3 The present invention is a circuit diagram of a puncture tube capable of automatically exhausting smoke in a specific embodiment of the present invention.

[0027] Figure 4 The present invention is a flowchart of a puncture cannula capable of automatically exhausting smoke in a specific embodiment of the present invention.

[0028] In the figure:

[0029] 1. Trocar sleeve seat; 11. Upper housing; 12. Lower housing; 13. Cross sealing cap; 14. Push button;

[0030] 2. Trocar sleeve; 21. Smoke; 22. Smoke detection element; 23. Smoke hole;

[0031] 3. Equipment housing; 31. Upper cavity; 32. Lower cavity; 33. Air blocking valve; 34. Spring support frame; 35. Spring; 36. Fan installation cavity; 37. Fan; 38. Electric control board; 39. Power supply;

[0032] 4. Filter cotton;

[0033] 5. Induction coil;

[0034] 6. High frequency electric knife;

[0035] 7. Abdominal wall;

[0036] 8. Abdominal cavity;

[0037] 9. Human tissue. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1 to Figure 4As shown, a puncture tube with automatic smoke exhaust comprises a puncture tube seat 1 and a puncture tube 2 connected to the puncture tube seat 1, wherein the puncture tube seat 1 comprises an upper shell 11 and a lower shell 12, wherein the upper shell 11 and the lower shell 12 are detachably connected, a cross sealing cap 13 is provided at the bottom of the upper shell 11, the bottom end of the lower shell 12 is fixedly connected to the puncture tube 2, an equipment shell 3 is fixed on the outer wall of the lower shell 12, and the equipment shell 3 comprises an upper cavity 31 and a lower cavity 32, and one end of the upper cavity 31 is connected to the lower cavity 32. The lower shell 12 is connected, and the upper cavity 31 is provided with a gas blocking valve 33 for blocking the lower shell 12 at this end, a spring support frame 34 is fixed to the other end of the upper cavity 31, and the gas blocking valve 33 and the spring support frame 34 are connected by a spring 35, and a fan installation cavity 36 is provided at one end of the upper cavity 31 close to the spring support frame 34, and one end of the fan installation cavity 36 is connected to the upper cavity 31, and the other end of the fan installation cavity 36 is connected to the outside, and a fan 37 is installed in the fan installation cavity 36;

[0040] The bottom of the trocar sleeve 2 is provided with a smoke detection element 22 for detecting smoke 21 and a plurality of smoke holes 23;

[0041] An electric control board 38 and a battery 39 are disposed in the lower cavity 32 . The battery 39 is electrically connected to the smoke detection element 22 via the electric control board 38 and an induction switch, and the battery 39 is electrically connected to the fan 37 via the electric control board 38 .

[0042] A filter cotton 4 is provided at the connection point between the upper cavity 31 and the lower shell 12 .

[0043] The upper shell 11 and the lower shell 12 are detachably connected via a push button 14 .

[0044] The induction switch includes an induction coil 5 arranged at the bottom of the lower housing 12 .

[0045] The battery 39 provides electric energy to the smoke detection element 22 , the electric control board 38 and the fan 37 , and can also supply power to the smoke detection element 22 , the electric control board 38 and the fan 37 through a power line.

[0046] The induction switch is used to turn on and delay the closing of the smoke detection element 22. When the high-frequency electric knife 6 passes through the puncture tube seat 1 and the puncture tube 2, the current on the high-frequency electric knife 6 generates electromagnetic induction on the induction switch, and the induction switch generates a current signal to turn on the smoke detection element 22. The control board 38 controls the smoke detection element 22 to turn on. When the induction switch detects that there is no current in the high-frequency electric knife 6, or the high-frequency electric knife is detached from the puncture tube 2, the induction switch delays the closing of the smoke detection element 22. The delay time can be set independently according to its own function.

[0047] The smoke detection element 22 is used to detect whether there is smoke 21. When there is smoke 21, the smoke detection element 22 transmits a signal to turn on the fan 37 to the electric control board 38, and the electric control board 38 controls the operation of the fan 37. When there is no smoke 21 or the smoke 21 value is lower than the threshold set by its own function, the smoke detection element 22 sends a signal to the electric control board 38 to turn off the fan 37, and the electric control board 38 turns off the fan 37.

[0048] In the use state: the high-frequency electric knife 6 passes through the puncture tube seat 1, the puncture tube 2 and the abdominal wall 7 in sequence to enter the abdominal cavity 8. After the induction coil 5 detects the current in the high-frequency electric knife 6, the induction coil 5 itself generates current and transmits the current signal to the electric control board 38. The electric control board 38 controls the smoke sensing element 22 to turn on. When the head electrode 8 of the high-frequency electric knife 6 cuts or coagulates the human tissue 9 and generates smoke 21, the smoke sensing element 22 detects the smoke 21 and transmits the current signal to the electric control board 38. The control board 38 sends a signal, and the electric control board 38 starts the fan 37 after receiving the signal. The fan 37 works to generate negative pressure in the upper cavity 31, the spring 38 contracts, and the air blocking valve 33 moves into the upper cavity 31, that is, the passage between the lower shell 12 and the upper cavity 31 is opened, and the smoke 21 enters the puncture tube 2 through the smoke hole 23, and enters the upper cavity 31 through the lower shell 12, and then is discharged through the fan installation cavity 36. When the smoke sensing element 22 cannot detect the smoke 21 or the detected smoke 21 value is lower than the threshold set by the electric control board 38, the smoke sensing element 22 sends a signal to the electric control board 38 to turn off the fan 37, and the electric control board 38 turns off the fan 37. After that, the air blocking valve 33 is reset under the action of the spring 35, and the upper cavity 31 and the lower shell 12 are sealed. When the induction switch detects that there is no current in the high-frequency electric knife 6, or the high-frequency electric knife 6 is separated from the puncture device sleeve 2, the induction switch delays closing the smoke detection element 22.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trocar cannula capable of automatically exhausting smoke, characterized in that: The puncture tube seat comprises a puncture tube seat and a puncture tube connected with the puncture tube seat, the puncture tube seat comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a cross sealing cap is provided at the bottom of the upper shell, the bottom end of the lower shell is fixedly connected with the puncture tube, an equipment shell is fixed on the outer wall of the lower shell, the equipment shell comprises an upper cavity and a lower cavity, one end of the upper cavity is connected with the lower shell, and this end of the upper cavity is provided with an air blocking valve for blocking the lower shell, a spring support frame is fixed at the other end of the upper cavity, and the air blocking valve is connected to the spring support frame by a spring, a fan installation cavity is provided at one end of the upper cavity close to the spring support frame, and one end of the fan installation cavity is connected with the upper cavity, and the other end of the fan installation cavity is connected with the outside, and a fan is installed in the fan installation cavity; The bottom of the puncture tube is provided with a smoke detection element for detecting smoke and a plurality of smoke holes; An electric control board and a battery are arranged in the lower cavity, the battery is electrically connected to the smoke detection element through the electric control board and the induction switch, and the battery is electrically connected to the fan through the electric control board; The battery provides power to the smoke detection element, the electric control board and the fan, or supplies power to the smoke detection element, the electric control board and the fan through a power line; The induction switch is used to turn on and delay the closing of the smoke detection element. When the high-frequency electric knife passes through the puncture tube seat and the puncture tube, the current on the high-frequency electric knife generates electromagnetic induction on the induction switch, and the induction switch generates a current signal to turn on the smoke detection element. The electric control board controls the smoke detection element to turn on. When the induction switch detects that there is no current in the high-frequency electric knife, or the high-frequency electric knife is separated from the puncture tube, the induction switch delays the closing of the smoke detection element, and the delay time is independently set according to its own function; The smoke detection element is used to detect whether there is smoke. When there is smoke, the smoke detection element transmits a signal to turn on the fan to the electric control board, and the electric control board controls the operation of the fan. When there is no smoke or the smoke value is lower than the threshold set by its own function, the smoke detection element sends a signal to turn off the fan to the electric control board, and the electric control board turns off the fan.

2. The trocar cannula capable of automatically exhausting smoke according to claim 1, characterized in that: A filter cotton is arranged at the connection point between the upper cavity and the lower shell.

3. The trocar cannula capable of automatically exhausting smoke according to claim 1, characterized in that: The upper shell and the lower shell are detachably connected via a push button.

4. The trocar cannula capable of automatically exhausting smoke according to claim 1, characterized in that: The induction switch includes an induction coil arranged at the bottom of the lower shell.

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