Smoke filtering device of electric knife for medical operation

Abstract

The invention relates to the technical field of smoke filtering devices, in particular to a smoke filtering device of an electrotome for medical surgery, comprising: an equipment body comprising an electrotome handle, the bottom end of the electrotome handle is provided with a wiring hole, the surface of the electrotome handle is provided with a control key, and the top end of the electrotome handle is connected with an electrotome rod; the outer wall of the top end of the electric knife handle is sleeved with a filtering structure which comprises a positioning lantern ring, and the top end of the positioning lantern ring is connected with a smoke blocking ring. By starting the micro air pump, smoke generated by combustion of the electrotome rod enters the air inlet formed in the positioning lantern ring through guiding of the smoke blocking ring, enters the first filter pipe through the air supply pipe, enters the second filter pipe from the exhaust pipe after being filtered for the first time, and is filtered through a compact fiber matrix of the second filter pipe, so that the smoke is filtered; and tiny particles and pollutants are captured, so that secondary filtration is carried out, and the effects of efficiently filtering and discharging harmful substances possibly contained in the smoke are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of smoke filtering devices, and particularly to a smoke filtering device for an electrocautery used in medical surgery. Background Art

[0002] An electrocautery used in medical surgery can be used for hemostasis. Its hemostatic effect is usually caused by the high temperature and electrocoagulation effect it generates. The high heat generated by the electrocautery during the operation can quickly coagulate blood vessels, thereby achieving the hemostatic effect. The electrocoagulation function of the electrocautery can also denature tissue proteins, further promoting hemostasis. When the surgical electrocautery cuts tissue, the heat generated can quickly coagulate the blood in the blood vessels, seal the blood vessels, and achieve the purpose of hemostasis. The electrocoagulation function of the electrocautery can denature tissue proteins to form a protective film to prevent blood from flowing out, thereby achieving hemostasis. The hemostatic effect of the surgical electrocautery can reduce the amount of bleeding during the operation, reduce the risk of blood loss of the patient, and is beneficial to postoperative recovery.

[0003] In surgical work, the electrocautery is widely used. The electrocautery is divided into electrosection and electrocoagulation, both of which have the function of hemostasis for small blood vessels. The electrocoagulation has a stronger hemostatic effect. The basic purpose is to cut the skin or subcutaneous tissue on one side and coagulate small blood vessels on the other side to prevent blood vessel bleeding. However, a large amount of smoke is generated during the operation, which may contain harmful substances such as viruses, bacteria, carcinogens, etc. This smoke will affect the surgical field of view and endanger the health of medical staff. Moreover, the smoke emission system of the traditional electrocautery has low efficiency, cannot completely solve the problem of smoke pollution, and cannot filter the smoke, easily causing the problem of smoke diffusion. Summary of the Invention

[0004] The purpose of the present invention is to provide a smoke filtering device for an electrocautery used in medical surgery to solve the problems raised in the above background art, namely, a large amount of smoke is generated during the operation, which may contain harmful substances such as viruses, bacteria, carcinogens, etc. This smoke will affect the surgical field of view and endanger the health of medical staff. Moreover, the smoke emission system of the traditional electrocautery has low efficiency, cannot completely solve the problem of smoke pollution, and cannot filter the smoke, easily causing the problem of smoke diffusion.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A smoke filtering device for an electrocautery used in medical surgery, comprising:

[0006] The device body, including an electrocautery handle, a wiring hole is provided at the bottom end of the electrocautery handle, control keys are provided on the surface of the electrocautery handle, and an electrocautery rod is connected to the top end of the electrocautery handle;

[0007] A filtering structure is sleeved on the outer wall of the top end of the electric tool handle, including a positioning collar. A smoke-blocking ring is connected to the top end of the positioning collar. One side of the bottom end of the positioning collar is connected with a micro air pump. The bottom end of the micro air pump is connected with an air delivery pipe. The bottom end of the air delivery pipe is connected with a first filter pipe. The bottom end of the first filter pipe is connected with an exhaust pipe. The bottom end of the exhaust pipe is connected with a second filter pipe. An air outlet pipe is arranged on one side of the second filter pipe. A sealing plug is embedded in one end of the air outlet pipe.

[0008] Preferably, the smoke-blocking ring is connected to the top end of the positioning collar in a horn shape. A plurality of air inlets are formed on the surface of the positioning collar. A through hole is formed on one side of the inner wall of the air inlet formed in the positioning collar. The through hole formed in the positioning collar is used for the micro air pump to extract the smoke entering the inside of the positioning collar.

[0009] Preferably, a PTFE membrane material is arranged inside the first filter pipe, and a HEPA filtering material is arranged inside the second filter pipe.

[0010] Preferably, six air exchange holes are formed on the surface of the bottom end of the first filter pipe and the surface of the top end of the second filter pipe. The air exchange holes formed in the first filter pipe and the second filter pipe are connected by the exhaust pipe.

[0011] Preferably, the exhaust pipe is made of a hollow transparent material. An air outlet is formed on one side of the second filter pipe. The air outlet pipe is connected to the surface of the air outlet formed in the second filter pipe. One end of the sealing plug is inserted into the inside of the air outlet pipe.

[0012] Preferably, a limiting structure is connected to the surface of the bottom end of the second filter pipe. The limiting structure includes a fixing frame. A bearing is connected to the inner surface of the fixing frame. A threaded sleeve is connected to the inner surface of the bearing. A limiting ring is connected to the bottom end of the threaded sleeve. A threaded ring is rotatably connected to the inside of the threaded sleeve.

[0013] Preferably, the threaded ring is connected to the outer surface of the electric tool handle. The fixing frame and the threaded sleeve are movably connected by the bearing. Threads are arranged on the inner surface of the threaded sleeve. The threaded sleeve and the threaded ring are rotationally connected by the threads.

[0014] Preferably, the bottom end of the threaded sleeve extends outside the fixing frame and is connected to the limiting ring. Anti-slip lines are arranged on the outer surface of the limiting ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The smoke filtration device of the electrosurgical knife for medical surgery starts the micro air pump, enabling the smoke generated by the combustion of the electrosurgical knife rod to enter the intake port opened in the positioning collar through the guidance of the smoke-blocking ring. The smoke-blocking ring collects and blocks the scattered smoke with its shape and does not obstruct the surgical field of view. After the smoke enters the positioning collar, it enters the first filter tube through the air delivery pipe for the first filtration to filter various particulate matters and harmful gases in the surgical smoke. After the first filtration, the smoke enters the second filter tube from the exhaust pipe and uses its dense fiber matrix to capture tiny particles and pollutants for secondary filtration. After being filtered clean, the gas is discharged from the air outlet pipe opened on one side of the second filter tube and diffuses in the operating room. When not in use, one end of the sealing plug is fitted into the air outlet pipe to seal and block the air outlet pipe, thereby achieving the effect of efficiently filtering and discharging the harmful substances that may be contained in the smoke.

[0017] 2. The smoke filtration device of the electrosurgical knife for medical surgery slides the threaded sleeve over the outer surface of the electrosurgical knife handle. When it moves to the top of the threaded ring, the angle of the limit ring is rotated. The anti-slip pattern set on the outer surface of the limit ring makes the rotation more convenient and avoids finger slipping, so that the limit ring drives the threaded sleeve to rotate simultaneously. The bearing enables the threaded sleeve to rotate without affecting the angles of the fixed frame and the second filter tube, making the threaded sleeve rotatably connected to the outer surface of the threaded ring. The thread is used to connect and fix the threaded sleeve and the threaded ring, thereby realizing the limiting function between the second filter tube and the electrosurgical knife handle and preventing the displacement of the first filter tube and the second filter tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view three-dimensional structure schematic diagram of the present invention;

[0019] Figure 2 is a front view sectional three-dimensional structure schematic diagram of the present invention;

[0020] Figure 3 is a side view sectional three-dimensional structure schematic diagram of the present invention;

[0021] Figure 4 is a side view sectional plan schematic diagram of the present invention;

[0022] Figure 5 is a rear view partial sectional three-dimensional structure schematic diagram of the present invention;

[0023] Figure 6 is a side view partial sectional three-dimensional structure schematic diagram of the present invention;

[0024] Figure 7 is a bottom view partial sectional three-dimensional structure schematic diagram of the present invention.

[0025] In the figure: 1. Equipment body; 11. Electric knife handle; 12. Wiring hole; 13. Control key; 14. Electric knife rod; 2. Filter structure; 21. Positioning collar; 22. Smoke-blocking ring; 23. Micro air pump; 24. Air supply pipe; 25. First filter pipe; 26. Exhaust pipe; 27. Second filter pipe; 28. Air outlet pipe; 29. Sealing plug; 3. Limit structure; 31. Fixed bracket; 32. Bearing; 33. Threaded sleeve; 34. Limit ring; 35. Threaded ring. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-7 , an embodiment provided by the present invention:

[0028] A smoke filtering device for an electric knife in medical surgery, comprising: an equipment body 1, including an electric knife handle 11, a wiring hole 12 is arranged at the bottom end of the electric knife handle 11, a control key 13 is arranged on the surface of the electric knife handle 11, and an electric knife rod 14 is connected to the top end of the electric knife handle 11. The electric knife handle 11 and the electric knife rod 14 used in this application are both products that can be directly purchased on the market, and their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here;

[0029] A filter structure 2 is sleeved on the outer wall of the top end of the electric knife handle 11, including a positioning collar 21, a smoke-blocking ring 22 is connected to the top end of the positioning collar 21, a micro air pump 23 is connected to one side of the bottom end of the positioning collar 21, an air supply pipe 24 is connected to the bottom end of the micro air pump 23, a first filter pipe 25 is connected to the bottom end of the air supply pipe 24, an exhaust pipe 26 is connected to the bottom end of the first filter pipe 25, a second filter pipe 27 is connected to the bottom end of the exhaust pipe 26, an air outlet pipe 28 is arranged on one side of the second filter pipe 27, and a sealing plug 29 is embedded in one end of the air outlet pipe 28.

[0030] Further, the smoke-blocking ring 22 is connected to the top end of the positioning collar 21 in a flared shape, a plurality of air inlets are provided on the surface of the positioning collar 21, a through hole is provided on one side of the inner wall of the air inlet opened on the positioning collar 21, and the through hole opened on the positioning collar 21 is used for the micro air pump 23 to extract the smoke entering the inside of the positioning collar 21, so as to realize the extraction of the smoke collected by the positioning collar 21 by the micro air pump 23.

[0031] Furthermore, a PTFE membrane material is provided inside the first filter tube 25, and a HEPA filter material is provided inside the second filter tube 27, so as to filter various particulate matters and harmful gases in the surgical smoke through the first filter tube 25, and capture tiny particles and pollutants by the second filter tube 27 for secondary filtration.

[0032] Furthermore, six groups of air exchange holes are provided on the bottom surface of the first filter tube 25 and the top surface of the second filter tube 27, and the air exchange holes provided on the first filter tube 25 and the second filter tube 27 are connected by an exhaust pipe 26, so as to communicate between the first filter tube 25 and the second filter tube 27 through the exhaust pipe 26.

[0033] Furthermore, the exhaust pipe 26 is made of a hollow transparent material, an air outlet is provided on one side of the second filter tube 27, an air outlet pipe 28 is connected to the surface of the air outlet provided on the second filter tube 27, and one end of a sealing plug 29 is inserted into the air outlet pipe 28, so as to fill and seal the air outlet pipe 28 by inserting one end of the sealing plug 29 into the air outlet pipe 28.

[0034] Furthermore, a limiting structure 3 is connected to the bottom surface of the second filter tube 27. The limiting structure 3 includes a fixing frame 31, a bearing 32 is connected to the inner surface of the fixing frame 31, a threaded sleeve 33 is connected to the inner surface of the bearing 32, a limiting ring 34 is connected to the bottom end of the threaded sleeve 33, and a threaded ring 35 is rotatably connected to the inside of the threaded sleeve 33, so as to limit the second filter tube 27 and the electric tool handle 11 through the threaded sleeve 33 and the threaded ring 35.

[0035] Furthermore, the threaded ring 35 is connected to the outer surface of the electric tool handle 11, the fixing frame 31 and the threaded sleeve 33 are movably connected by the bearing 32, the inner surface of the threaded sleeve 33 is provided with threads, and the threaded sleeve 33 and the threaded ring 35 are rotationally connected by the threads, so as to connect and fix the threaded sleeve 33 and the threaded ring 35 through the threads.

[0036] Furthermore, the bottom end of the threaded sleeve 33 extends outside the fixing frame 31 and is connected to the limiting ring 34, and anti-slip threads are provided on the outer surface of the limiting ring 34, so that fingers will not slip when rotating the limiting ring 34 through the anti-slip threads provided on the limiting ring 34.

[0037] Working principle: When the present invention is in use, by starting the micro air pump 23, the smoke generated by the burning of the electric knife rod 14 enters the interior of the air inlet opened in the positioning collar 21 through the guidance of the smoke blocking ring 22. The smoke blocking ring 22 is used to collect and block the scattered smoke, and it will not obstruct the surgical field of view. After the smoke enters the interior of the positioning collar 21, it enters the interior of the first filter tube 25 through the air delivery pipe 24 for the first filtration, filtering various particulate matters and harmful gases in the surgical smoke. After the first filtration, the smoke enters the interior of the second filter tube 27 from the exhaust pipe 26, and uses its dense fiber matrix to capture tiny particles and pollutants, thereby performing secondary filtration. After being filtered clean, the gas is discharged from the air outlet pipe 28 opened on one side of the second filter tube 27 and diffused in the operating room. When not in use, one end of the sealing plug 29 is fitted into the interior of the air outlet pipe 28 to block and seal the air outlet pipe 28, thereby achieving the effect of efficiently filtering and discharging the harmful substances that may be contained in the smoke.

[0038] When the present invention is in use, the threaded sleeve 33 is sleeved on the outer surface of the electric knife handle 11 and slides. When it moves to the top of the threaded ring 35, the angle of the limiting ring 34 is rotated. The anti-slip pattern provided on the outer surface of the limiting ring 34 makes the rotation more convenient and avoids finger slipping, so that the limiting ring 34 drives the threaded sleeve 33 to rotate simultaneously. The bearing 32 is used to ensure that the rotation of the threaded sleeve 33 does not affect the angles of the fixing frame 31 and the second filter tube 27, so that the threaded sleeve 33 is rotationally connected to the outer surface of the threaded ring 35. The thread is used to connect and fix between the threaded sleeve 33 and the threaded ring 35, thereby realizing the limiting function between the second filter tube 27 and the electric knife handle 11 and avoiding the displacement of the first filter tube 25 and the second filter tube 27.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A smoke filter device for an electric knife used in medical surgery, characterized in that: include: The device body (1) comprises an electric knife handle (11), wherein the bottom end of the electric knife handle (11) is provided with a wiring hole (12), the surface of the electric knife handle (11) is provided with a control key (13), and the top end of the electric knife handle (11) is connected to an electric knife rod (14); The outer wall at the top end of the electric knife handle (11) is sleeved with a filtering structure (2), comprising a positioning ring (21), the top end of the positioning ring (21) is connected to a smoke blocking ring (22), one side of the bottom end of the positioning ring (21) is connected to a micro vacuum pump (23), the bottom end of the micro vacuum pump (23) is connected to an air supply pipe (24), the bottom end of the air supply pipe (24) is connected to a first filter tube (25), the bottom end of the first filter tube (25) is connected to an exhaust pipe (26), the bottom end of the exhaust pipe (26) is connected to a second filter tube (27), one side of the second filter tube (27) is provided with an exhaust pipe (28), and one end of the exhaust pipe (28) is internally embedded with a sealing plug (29).

2. The smoke filtering device for an electric knife for medical surgery according to claim 1, characterized in that: The smoke blocking ring (22) is connected to the top of the positioning collar (21) in a trumpet shape. The surface of the positioning collar (21) is provided with a plurality of air inlets. A through hole is provided on one side of the inner wall of the air inlet provided in the positioning collar (21). The through hole provided in the positioning collar (21) is used by a micro vacuum pump (23) to extract smoke entering the interior of the positioning collar (21).

3. The smoke filtering device for an electric knife for medical surgery according to claim 1, characterized in that: The first filter tube (25) is provided with a PTFE membrane material inside, and the second filter tube (27) is provided with a HEPA filter material inside.

4. The smoke filtering device for an electric knife for medical surgery according to claim 1, characterized in that: Six groups of ventilation holes are provided on the bottom surface of the first filter tube (25) and the top surface of the second filter tube (27), and the ventilation holes provided on the first filter tube (25) and the second filter tube (27) are connected by an exhaust pipe (26).

5. The smoke filtering device for an electric knife for medical surgery according to claim 1, characterized in that: The exhaust pipe (26) is made of a hollow transparent material, a gas outlet is provided on one side of the second filter tube (27), the gas outlet pipe (28) is connected to the surface of the gas outlet provided on the second filter tube (27), and one end of the sealing plug (29) is inserted into the gas outlet pipe (28).

6. The smoke filtering device for an electric knife for medical surgery according to claim 1, characterized in that: The bottom surface of the second filter tube (27) is connected to a limiting structure (3), the limiting structure (3) comprises a fixing frame (31), the inner surface of the fixing frame (31) is connected to a bearing (32), the inner surface of the bearing (32) is connected to a threaded sleeve (33), the bottom end of the threaded sleeve (33) is connected to a limiting ring (34), and the threaded sleeve (33) is rotatably connected to a threaded ring (35) inside.

7. The smoke filtering device for an electric knife for medical surgery according to claim 6, characterized in that: The threaded ring (35) is connected to the outer surface of the electric knife handle (11), the fixing frame (31) and the threaded sleeve (33) are movably connected by a bearing (32), the inner surface of the threaded sleeve (33) is provided with threads, and the threaded sleeve (33) and the threaded ring (35) are rotatably connected by threads.

8. The smoke filtering device for an electric knife used in medical surgery according to claim 6, characterized in that: The bottom end of the threaded sleeve (33) extends outside the fixing frame (31) and is connected to a limiting ring (34), and the outer surface of the limiting ring (34) is provided with anti-slip grooves.

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