Plasma surgical device

Abstract

The utility model relates to a plasma operation device. According to the technical scheme, the plasma surgical device comprises a plasma surgical knife head and a handheld excitation part, and the plasma surgical knife head and the handheld excitation part are detachably connected; the plasma scalpel head comprises a scalpel head shell, a front suction pipeline and an electrode mechanism; the front suction pipeline and the electrode mechanism are both installed in the tool bit shell. The handheld excitation part comprises a handle shell, a rear suction pipeline and an electrode control mechanism; the rear suction pipeline and the electrode control mechanism are both installed on the handle shell. A male connector is installed in the tool bit shell, and a female connector is installed in the handle shell. Matched split connecting structures are arranged between the tool bit shell and the handle shell or between the male connector and the female connector. The replaceable scalpel head has a suction function while the replaceable scalpel head is ensured, so that the surgical field of view is ensured. And in addition, the working end electrode can be detached and replaced, so that the use cost of the instrument is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a plasma surgical device, in particular to a plasma surgical device with a replaceable cutter head and a suction function. Background Art

[0002] The radiofrequency plasma surgical system is a new generation of low-temperature plasma surgical system that can be used for soft tissue dissection, resection, ablation, hemostasis and drying in surgical operations. It can be used in conjunction with an endoscope system for intracavitary surgery or in conjunction with an imaging system for interventional treatment. In order to reduce patient costs, the current radiofrequency plasma surgical system may adopt a split design, that is, a non-replaceable handheld control part combined with a replaceable blade head to form a radiofrequency plasma surgical system. Such as the radiofrequency surgical device disclosed in CN219846764U. However, the above equipment is prone to bleeding that affects the field of view during use. Accordingly, in order to ensure the field of view, it is currently considered to add a flushing device for flushing, and then use a suction device to aspirate blood and water. In order to minimize the number of devices entering the abdominal cavity, there is currently a radiofrequency plasma surgical system with a suction channel, but the device is not designed with a replaceable blade head. The main reason is that the airtightness of the suction channel after splitting needs to be considered. Utility Model Content

[0003] The purpose of the utility model is to provide a plasma surgical device which ensures that the blade head is replaceable and has a suction function, thereby ensuring the surgical field of view.

[0004] The utility model is realized by the following technical solution: a plasma surgical device comprises a plasma surgical blade head 1 and a handheld exciting part 2, wherein the plasma surgical blade head 1 and the handheld exciting part 2 are detachably connected;

[0005] The plasma surgical blade 1 includes a blade housing 11, a front suction pipe 12, and an electrode mechanism; the front suction pipe 12 and the electrode mechanism are both installed in the blade housing 11;

[0006] The handheld excitation unit 2 includes a handle housing 21, a rear suction pipe 22, and an electrode control mechanism; the rear suction pipe 22 and the electrode control mechanism are both installed in the handle housing 21;

[0007] A male connector 3 is installed in the blade housing 11, and a female connector 4 is installed in the handle housing 21; the male connector 3 is provided with a front auxiliary pipe 31 and a male pin 32, the front auxiliary pipe 31 is connected to the front suction pipe 12, and the male pin 32 is electrically connected to the electrode mechanism; the female connector 4 is provided with a rear auxiliary pipe 41 and a female pin 42, the rear auxiliary pipe 41 is connected to the rear suction pipe 22, and the female pin 42 is electrically connected to the electrode control mechanism; a sealing ring 5 is also provided at the connection between the front auxiliary pipe 31 and the rear auxiliary pipe 41;

[0008] A split connection structure that cooperates with each other is provided between the blade housing 11 and the handle housing 21 or between the male connector 3 and the female connector 4;

[0009] When the male connector 3 and the female connector 4 are connected, the female pin 42 and the male pin 32 are docked to realize the electrical connection between the electrode control mechanism and the electrode mechanism. At the same time, the front auxiliary pipe 31 and the rear auxiliary pipe 41 are sealed and connected to realize the communication between the front suction pipe 12 and the rear suction pipe 22.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] Based on the plasma surgical device with suction function, a detachable blade structure is designed, which allows the working end electrode to be removed and replaced, greatly reducing the cost of the device. This saves the cost of the device and alleviates the financial pressure on patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the connection between the plasma surgical blade and the handheld excitation unit in Example 1;

[0013] Figure 2 for Figure 1 sectional view of

[0014] Figure 3 This is a schematic structural diagram of the cutter head housing of Example 1;

[0015] Figure 4 This is a structural diagram of the handle housing of Example 1;

[0016] Figure 5 This is a schematic structural diagram of the male connector of Example 1;

[0017] Figure 6 This is a schematic structural diagram of the female connector of Example 1;

[0018] Figure 7 This is a schematic diagram of the connection between the plasma surgical blade and the handheld excitation unit in Example 2;

[0019] Figure 8 This is a schematic structural diagram of the male connector of Example 2;

[0020] Figure 9 This is a schematic structural diagram of the female connector of Example 2;

[0021] Figure 10 This is a schematic diagram of the connection between the plasma surgical blade and the handheld excitation unit in Example 3;

[0022] Figure 11 This is a schematic structural diagram of the male connector of Example 3;

[0023] Figure 12 This is a schematic structural diagram of the female connector of Example 3;

[0024] Figure 13 This is a schematic structural diagram of the stainless steel ferrule in Example 3;

[0025] Figure 14 This is a schematic diagram of the connection between the plasma surgical blade and the handheld excitation unit in Example 4;

[0026] Figure 15 This is a schematic structural diagram of the male connector of Example 4;

[0027] Figure 16 This is a schematic structural diagram of the female connector of Example 4;

[0028] Figure 17 This is a schematic structural diagram of the rotating sleeve of Example 4.

[0029] Explanation of reference numbers: 1 plasma surgical blade head, 11 blade head housing, 111 limiting groove, 12 front suction pipe, 2 hand-held excitation part, 21 handle housing, 211 limiting protrusion, 212 control button, 22 rear suction pipe, 3 male connector, 31 front auxiliary pipe, 32 male pin connector, 33 through hole B, 34 first sleeve, 341 first connector, 342 pressing tooth, 343 annular groove, 345 external thread, 347 anti-rotation notch, 35 through hole F, 4 female connector, 41 rear auxiliary pipe, 42 female pin connector, 43 through hole D, 44 first embedded column, 441 slot, 442 tooth groove, 443 stainless steel ferrule, 444 sliding toggle switch, 445 rotating sleeve, 446 internal thread, 5 sealing ring, 6 anti-foolproof positioning block, 7 extension tube, 81 disc electrode wire, 82 electrode sheet, 83 ceramic head. DETAILED DESCRIPTION

[0030] The utility model is described in detail below with reference to the accompanying drawings:

[0031] like Figure 1-17 As shown: a plasma surgical device, comprising a plasma surgical blade head 1 and a handheld exciting part 2, wherein the plasma surgical blade head 1 and the handheld exciting part 2 are detachably connected;

[0032] The plasma surgical blade 1 includes a blade housing 11, a front suction pipe 12, and an electrode mechanism; the front suction pipe 12 and the electrode mechanism are both installed in the blade housing 11;

[0033] The handheld excitation unit 2 includes a handle housing 21, a rear suction pipe 22, and an electrode control mechanism; the rear suction pipe 22 and the electrode control mechanism are both installed in the handle housing 21;

[0034] A male connector 3 is installed in the blade housing 11, and a female connector 4 is installed in the handle housing 21; the male connector 3 is provided with a front auxiliary pipe 31 and a male pin 32, the front auxiliary pipe 31 is connected to the front suction pipe 12, and the male pin 32 is electrically connected to the electrode mechanism; the female connector 4 is provided with a rear auxiliary pipe 41 and a female pin 42, the rear auxiliary pipe 41 is connected to the rear suction pipe 22, and the female pin 42 is electrically connected to the electrode control mechanism; a sealing ring 5 is also provided at the connection between the front auxiliary pipe 31 and the rear auxiliary pipe 41;

[0035] A split connection structure that cooperates with each other is provided between the blade housing 11 and the handle housing 21 or between the male connector 3 and the female connector 4;

[0036] When the male connector 3 and the female connector 4 are connected, the female pin 42 and the male pin 32 are docked to realize the electrical connection between the electrode control mechanism and the electrode mechanism. At the same time, the front auxiliary pipe 31 and the rear auxiliary pipe 41 are sealed and connected to realize the communication between the front suction pipe 12 and the rear suction pipe 22.

[0037] A male connector 3 and a female connector 4 are additionally provided here, which are connected to the blade head housing 11 and the handle housing 21 respectively, and then the two are plugged into each other to realize the communication between the front suction pipe 12 and the rear suction pipe 22 and the electrical connection between the electrode mechanism and the electrode control mechanism; among them, the setting of the sealing ring 5 can ensure the sealing of the connection between the front suction pipe 12 and the rear suction pipe 22 to ensure that there will be no water leakage.

[0038] A mutually cooperating split connection structure is provided between the blade head shell 11 and the handle shell 21 or between the male connector 3 and the female connector 4; it can ensure the reliability of the connection between the plasma surgical blade head 1 and the handheld excitation part 2, and thus ensure the firmness of the connection between the male connector 3 and the female connector 4.

[0039] It should be noted that there is a long extension tube between the surgical blade head 1 and the handheld excitation unit 2 of the present invention. The extension tube here can be used as part of the blade head housing 11 as needed, that is, the rear end of the blade head housing 11 is connected to the extension tube; or the extension tube can be used as part of the handle housing 21 as needed, that is, the front end of the handle housing is connected to the extension tube. It should be noted that generally, when the blade head housing 11 itself includes an extension tube, the handle housing 21 is not provided with an extension tube; conversely, when the handle housing 21 is provided with an extension tube, the blade head housing 11 is not provided with an extension tube.

[0040] In addition, the electrode mechanism and electrode control mechanism here are both conventional structures. The electrode mechanism mainly includes a disc electrode wire 81, an electrode sheet 82, and a ceramic head 83. The disc electrode wire passes through the electrode sheet, the ceramic head and is electrically connected to the male pin 32. The corresponding electrode control mechanism mainly includes a power supply, a control switch, and a female pin 42; the female pin 42 is connected to the power supply through the control switch.

[0041] According to the different shapes and structures of the male connector 3 and the female connector 4 and the different connection methods, the present invention derives the following four embodiments:

[0042] Example 1

[0043] like Figure 1-6 As shown: the male connector 3 is a first embedded block, which is embedded in the cutter head housing 11. A through hole A and a through hole B33 are opened in the second embedded block. The through hole A constitutes the front auxiliary pipe 31, and the male pin 32 is embedded in the through hole B33.

[0044] The female connector 4 is a second embedded block, which is partially embedded in the handle shell 21. A through hole C and a through hole D43 that pass through the front and back are opened in the second embedded block. The through hole C constitutes the rear auxiliary pipe 41, and the female pin 42 is embedded in the through hole D43.

[0045] It should be noted that, in order to facilitate the insertion of the first insert block into the blade housing 11, in addition to the interference fit between the two, the first insert block and the blade housing 11 are also provided with mutually cooperating limiting structures, such as a protrusion and groove design, or a method in which the blade housing 11 has a positioning hole and the first insert block has a positioning groove, and then is fixed by a positioning pin. Similarly, the second insert block and the handle housing 21 are connected in the same manner.

[0046] In addition, in this embodiment, the extension tube serves as a part of the handle housing 21 , that is, the front end of the handle housing is connected to the extension tube.

[0047] The detachable connection structure in Example 2 includes a limiting groove 111 provided on the blade housing 11 and a limiting protrusion 211 provided on the handle housing 21 that cooperates with the limiting groove 111. By plugging the blade housing 11 and the handle housing 21 together, the limiting protrusion 211 is embedded in the limiting groove 111. At this time, the male pin 32 and the female pin 42 are electrically connected, and the front auxiliary pipe 31 and the rear auxiliary pipe 41 are sealed together by the sealing ring 5, thereby achieving communication among the front suction pipe 12, the front auxiliary pipe 31, the rear auxiliary pipe 41, and the rear suction pipe 22, thereby achieving the purpose of serving as a suction pipe.

[0048] Example 2

[0049] like Figure 7-9 As shown: the male connector 3 is a first sleeve 34, the front end of the first sleeve 34 is inserted into the rear end of the cutter head housing 11, and the rear end of the first sleeve 34 is provided with a first connector 341. The first sleeve 34 and the first connector 341 are provided with a through hole E and a through hole F35 that pass through the front and back. The through hole E constitutes the front auxiliary pipe 31, and the male pin 32 is embedded in the through hole F35.

[0050] The female connector 4 is a first embedded column 44, which is installed in the handle housing 21. A slot 441 is provided at the front end of the first embedded column 44. A through hole G and a through hole H45 that pass through the first column 44 are provided in the first embedded column 44. The through hole G constitutes the rear auxiliary pipe 41, and the female pin 42 is embedded in the through hole H45.

[0051] It should be noted that the connection method between the first sleeve 34 and the blade head shell 11 can refer to the connection method of the first embedded block embedded in the blade head shell 11 in Example 1. It is only necessary to ensure that the two are tightly connected. Similarly, the first embedded column 44 is installed in the handle shell 21, and similar methods such as interference fit, snap connection, gluing, etc. can also be used. The connection methods here are all conventional technologies, so they will not be explained in detail.

[0052] In addition, in this embodiment, the extension tube serves as a part of the cutter head housing 11 , that is, the front end of the handle housing is connected to the extension tube.

[0053] The split connection structure comprises a first sleeve 34 having a pressing tooth 342 on the rear end sidewall and a first embedded column 44 having a tooth groove 442 on the front end sidewall that cooperates with the pressing tooth 342. A control button 212 for controlling the deformation of the pressing tooth 342 is also provided on the handle housing 21.

[0054] The detachable connection structure here is arranged on the male connector 3 and the female connector 4. Pressing the latch 342 and the tooth groove 442 is a conventional technical means. When the blade head shell 11 and the handle shell 21 are plugged in, the pressing latch 342 locks the tooth groove 442 to achieve connection. When the installation control button 212 forces the pressing latch 342 to deform and disengage from the tooth groove 442, the plasma surgical blade head 1 and the handheld excitation part 2 can be separated.

[0055] Example 3

[0056] like Figure 10-13 As shown: the male connector 3 is a first sleeve 34, the front end of the first sleeve 34 is inserted into the rear end of the cutter head housing 11, and the rear end of the first sleeve 34 is provided with a first connector 341. The first sleeve 34 and the first connector 341 are provided with a through hole E and a through hole F35 that pass through the front and back. The through hole E constitutes the front auxiliary pipe 31, and the male pin 32 is embedded in the through hole F35.

[0057] The female connector 4 is a first embedded column 44, which is installed in the handle housing 21. A slot 441 is provided at the front end of the first embedded column 44. A through hole G and a through hole H45 that pass through the first column 44 are provided in the first embedded column 44. The through hole G constitutes the rear auxiliary pipe 41, and the female pin 42 is embedded in the through hole H45.

[0058] The difference from Example 2 lies in the different split connection structure. Here, the split connection structure includes an annular groove 343, a stainless steel sleeve 443 and a toggle switch; an annular groove 343 is provided on the side wall ring of the tail end of the first sleeve 34, and a stainless steel sleeve 443 with a notch is provided in the handle shell 21 and in front of the first embedded column 44, and a toggle switch is also provided outside the handle shell; one end of the stainless steel sleeve 443 is fixedly connected to the handle shell, and the other end of the stainless steel sleeve 443 is connected to the toggle switch 444. The sliding toggle switch 444 can adjust the diameter of the stainless steel sleeve 443 to make it embedded in or out of the annular groove 343.

[0059] Example 4

[0060] like Figure 14-17 As shown: the male connector 3 is a first sleeve 34, the front end of the first sleeve 34 is inserted into the rear end of the cutter head housing 11, and the rear end of the first sleeve 34 is provided with a first connector 341. The first sleeve 34 and the first connector 341 are provided with a through hole E and a through hole F35 that pass through the front and back. The through hole E constitutes the front auxiliary pipe 31, and the male pin 32 is embedded in the through hole F35.

[0061] The female connector 4 is a first embedded column 44, which is installed in the handle housing 21. A slot 441 is provided at the front end of the first embedded column 44. A through hole G and a through hole H45 that pass through the first column 44 are provided in the first embedded column 44. The through hole G constitutes the rear auxiliary pipe 41, and the female pin 42 is embedded in the through hole H45.

[0062] The difference from Example 2 lies in the detachable connection structure. Here, the detachable connection structure includes an outer wall of the front end of the first sleeve 34, an outer wall of which is provided with an external thread 345 and a rotating sleeve 445. A rotating sleeve 445 is rotatably provided in the handle housing 21, in front of the first embedded column 44. The rotating sleeve 445 is rotatably connected to the handle housing 21, and the front end of the rotating sleeve 445 extends out of the handle housing 21 to form a grip portion. The rotating sleeve 445 is provided with an internal thread 446 that cooperates with the external thread 345.

[0063] An anti-rotation notch 347 is provided on the side wall of the first sleeve 34 , and a guide platform cooperating with the anti-rotation notch 347 is provided in the handle housing 21 .

[0064] Since the male pin 32 and the female pin 42 need to be accurately connected, the front auxiliary pipe 31 and the rear auxiliary pipe 41 also need to be accurately connected. Here, the male connector 3 and the female connector 4 are provided with a mutually cooperating anti-foolproof positioning block 6 and an anti-foolproof positioning groove.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plasma surgical device, characterized in that: It comprises a plasma surgical knife head (1) and a handheld excitation unit (2), wherein the plasma surgical knife head (1) and the handheld excitation unit (2) are detachably connected; The plasma surgical blade (1) comprises a blade shell (11), a front suction pipe (12), and an electrode mechanism; the front suction pipe (12) and the electrode mechanism are both installed in the blade shell (11); The handheld excitation unit (2) comprises a handle housing (21), a rear suction pipe (22), and an electrode control mechanism; the rear suction pipe (22) and the electrode control mechanism are both mounted on the handle housing (21); A male connector (3) is installed in the blade housing (11), and a female connector (4) is installed in the handle housing (21); a front auxiliary pipe (31) and a male pin connector (32) are provided in the male connector (3); the front auxiliary pipe (31) is connected to the front suction pipe (12), and the male pin connector (32) is electrically connected to the electrode mechanism; a rear auxiliary pipe (41) and a female pin connector (42) are provided in the female connector (4); the rear auxiliary pipe (41) is connected to the rear suction pipe (22), and the female pin connector (42) is electrically connected to the electrode control mechanism; a sealing ring (5) is also provided at the connection between the front auxiliary pipe (31) and the rear auxiliary pipe (41); A split connection structure that cooperates with each other is provided between the blade housing (11) and the handle housing (21) or between the male connector (3) and the female connector (4); When the male connector (3) and the female connector (4) are connected, the female pin connector (42) and the male pin connector (32) are docked to realize the electrical connection between the electrode control mechanism and the electrode mechanism, and at the same time, the front auxiliary pipeline (31) and the rear auxiliary pipeline (41) are sealed and connected to realize the communication between the front suction pipeline (12) and the rear suction pipeline (22).

2. The plasma surgical device according to claim 1, wherein: The male connector (3) is a first embedded block, which is embedded in the cutter head housing (11). A through hole A and a through hole B (33) are provided in the second embedded block. The through hole A constitutes the front auxiliary pipe (31), and the male pin (32) is embedded in the through hole B (33). The female connector (4) is a second embedded block, which is partially embedded in the handle housing (21). A through hole C and a through hole D (43) are provided in the second embedded block. The through hole C constitutes the rear auxiliary pipe (41), and the female pin connector (42) is embedded in the through hole D (43).

3. The plasma surgical device according to claim 2, wherein: The split connection structure comprises a limiting groove (111) provided on the blade housing (11) and a limiting protrusion (211) provided on the handle housing (21) and cooperating with the limiting groove (111).

4. The plasma surgical device according to claim 1, wherein: The male connector (3) is a first sleeve (34), the front end of the first sleeve (34) is inserted into the rear end of the cutter head housing (11), the rear end of the first sleeve (34) is provided with a first connector (341), the first sleeve (34) and the first connector (341) are provided with a through hole E and a through hole F (35) that pass through the front and back, the through hole E constitutes the front auxiliary pipe (31), and the male pin (32) is embedded in the through hole F (35); The female connector (4) is a first embedded column (44), which is installed in the handle housing (21). A slot (441) is provided at the front end of the first embedded column (44). A through hole G and a through hole H (45) are provided in the first embedded column (44), which are connected to each other from front to back. The through hole G constitutes the rear auxiliary pipe (41), and the female pin connector (42) is embedded in the through hole H (45).

5. The plasma surgical device according to claim 4, characterized in that: The split connection structure comprises a first sleeve (34) having a rear end side wall provided with a pressing tooth (342) and a first embedded column (44) having a front end side wall provided with a tooth groove (442) that cooperates with the pressing tooth (342), and a control button (212) for controlling the deformation of the pressing tooth (342) is also provided on the handle housing (21).

6. The plasma surgical device according to claim 4, characterized in that: The split connection structure includes an annular groove (343), a stainless steel ferrule (443) and a toggle switch; the side wall ring of the tail end of the first sleeve (34) is provided with an annular groove (343), a stainless steel ferrule (443) with a notch is provided in the handle housing (21) and in front of the first embedded column (44), and a toggle switch is also provided outside the handle housing; one end of the stainless steel ferrule (443) is fixedly connected to the handle housing, and the other end of the stainless steel ferrule (443) is connected to the toggle switch (444), and the sliding toggle switch (444) can adjust the diameter of the stainless steel ferrule (443) so that it is embedded in or out of the annular groove (343).

7. The plasma surgical device according to claim 4, characterized in that: The detachable connection structure includes an outer wall ring of the front end of the first sleeve (34) provided with an external thread (345) and a rotating sleeve (445); a rotating sleeve (445) is rotatably provided in front of the first embedded column (44) in the handle housing (21), the rotating sleeve (445) being rotatably connected to the handle housing (21) and the front end of the rotating sleeve (445) extending out of the handle housing (21) to form a handheld portion; an internal thread (446) is provided in the rotating sleeve (445) to cooperate with the external thread (345); An anti-rotation notch (347) is provided on the side wall of the first sleeve (34), and a guide platform matching the anti-rotation notch (347) is provided in the handle housing (21).

8. The plasma surgical device according to claim 2, wherein: The male connector (3) and the female connector (4) are provided with anti-mistake positioning blocks (6) and anti-mistake positioning grooves that cooperate with each other.

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