Radio frequency ablation forceps with telescoping and steering functions

Abstract

The application discloses a radio frequency ablation surgical forceps with telescopic and steering functions, and relates to the technical field of medical devices.The telescopic assembly is arranged in the fixed pipe to enable the extension pipe to extend on the fixed pipe, the length of the fixed pipe and the extension pipe can be adjusted by controlling the telescopic assembly, so that different use conditions can be adapted, and flexible adjustment can be carried out during use.The rotary joint is fixed to the rear end of the connecting head and rotates with the connecting pipe, the driving assembly is arranged in the connecting pipe, the rotary assembly is arranged on the rotary joint and cooperates with the driving assembly, the angle of the connecting head on the connecting pipe can be adjusted by controlling the driving assembly, so that the angle of the clamping head can be adjusted, the direction can be adjusted at the place where the hand cannot be rotated in the deep and narrow area, and the operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a radiofrequency ablation surgical forceps with telescopic and steering functions. BACKGROUND

[0002] In the field of surgical operations, electrocoagulation technology, as an important hemostasis and tissue treatment method, has been widely used. During the operation process of traditional electrocoagulation forceps, two major technical problems are often faced: one is the precision of current regulation, and the other is the limitation of surgical field of view. These problems directly affect the operation effect, tissue healing speed and operation safety.

[0003] Traditional electrocoagulation forceps usually do not have a fine current regulation device, and the current output is relatively fixed, which is difficult to accurately adjust according to the characteristics of different tissues. During the tissue healing process, too high current may cause extensive damage to the surrounding tissues, prolong the healing time, and even cause complications; while too low current may not achieve the desired hemostasis and tissue coagulation effect.

[0004] In complex surgical operations, especially when operating in narrow field of view or remote deep parts, traditional forceps are often difficult to reach, resulting in increased difficulty and limited effect of the operation. For example, when dealing with large blood vessels in deep cavities or hard-to-reach organ parts, the straight-line operation method of traditional forceps cannot meet the operation requirements, which may increase the risk of operation and affect the operation effect.

[0005] Therefore, we propose a radiofrequency ablation surgical forceps with telescopic and steering functions to solve the problems raised in the above background.

[0006] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include prior art known to those skilled in the art. SUMMARY

[0007] The purpose of the present application is to provide a radiofrequency ablation surgical forceps with telescopic and steering functions to solve the problems raised in the above background.

[0008] To achieve the above purpose, the present application provides the following technical solution: a radiofrequency ablation surgical forceps with telescopic and steering functions, comprising:

[0009] A handle body is provided below the handle body, a fixed handle and a movable handle are installed, a main switch is provided on the fixed handle, a controller is provided in the handle body, a display screen and a control switch are provided on one side of the handle body, a storage battery is provided on the top of the fixed handle, and a transmission lead is connected to the rear end of the handle body;

[0010] A fixed tube, the fixed tube being mounted on the front end of the handle body, the fixed tube being sleeved with an extension tube on the outside, and the fixed tube being provided with a telescopic assembly that allows the extension tube to extend on the fixed tube;

[0011] A connecting tube, the connecting tube being mounted at the front end of the extension tube and having a drive assembly disposed therein;

[0012] A connector, the connector being mounted on the front end of the connecting tube, a rotary joint being fixed to the rear end of the connector for rotationally cooperating with the connecting tube, a rotary assembly being provided on the rotary joint for cooperating with the drive assembly, a second motor being mounted in the connector, an output shaft of the second motor being connected to a second connecting shaft, a second active bevel gear being fixed to the front end of the second connecting shaft;

[0013] Two groups of clamping heads, the rear ends of the two groups of clamping heads are connected to movable brackets, the two groups of movable brackets are hingedly installed in the connecting head through pins, bearings are provided at both ends of the pins, and the second driven bevel gear engaged with the second active bevel gear is fixed on the inner side of the two groups of movable brackets, and a radio frequency current release structure is provided in the two groups of clamping heads.

[0014] Preferably, the telescopic assembly includes an electric telescopic rod installed in a fixed tube, the front end of the output end of the electric telescopic rod is connected to a push rod, and the front end of the push rod is fixed to the inner wall of the extension tube.

[0015] Preferably, the driving assembly includes a first motor installed in the connecting tube, the output shaft of the first motor is connected to a first connecting shaft, and a first driving bevel gear is fixed to the front end of the first connecting shaft.

[0016] Preferably, the rotating assembly includes a fixing frame fixed to the rear end of the rotating joint, the fixing frame is rotatably connected to the connecting pipe via a fixing shaft, and a first driven bevel gear meshing with the first driving bevel gear is fixed on the fixing shaft.

[0017] Preferably, the controller is signal-connected to the electric telescopic rod, the first motor and the second motor.

[0018] Preferably, the outer sides of the two groups of clamping heads are coated with a heat-resistant coating.

[0019] Preferably, the two groups of movable brackets are centrally symmetrical, and the two groups of the second driven bevel gears are mirror-symmetrical and are rotatably connected to the pin shaft.

[0020] Preferably, a tissue identification module is provided in the clamping head, and the tissue identification module controls the radio frequency current release structure to make energy adjustments by measuring tissue impedance to avoid tissue carbonization.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present application can realize the length adjustment of the fixed pipe and the extension pipe by setting the telescopic assembly which makes the extension pipe extend on the fixed pipe in the fixed pipe, and by controlling the telescopic assembly, so as to adapt to different use cases, and also can be flexibly adjusted during use.

[0023] (2) The present application can realize the angle adjustment of the clamping head by setting the rotary joint which is rotationally matched with the connecting pipe at the rear end of the connecting head, setting the driving assembly in the connecting pipe, setting the rotary assembly which is matched with the driving assembly on the rotary joint, and by controlling the driving assembly, so as to adjust the direction at the place where the hand cannot be rotated in the deep narrow area, and facilitate the operation.

[0024] (3) The present application reduces the damage of heat to the surrounding tissue by coating the heatproof coating layer on the outside of the clamping head.

[0025] (4) The present application can realize the local tissue heat necrosis by setting the radio frequency current release structure in the clamping head, and by generating the resistance heat in the tissue through the radio frequency current, and the tissue is dehydrated but not carbonized, and the influence on the surrounding tissue is small, and the action area can be accurately controlled, and the tissue recognition module is set to control the energy adjustment of the radio frequency current release structure, and the tissue carbonization can be further avoided.

[0026] The above summary is only for the purpose of the description, and is not intended to limit in any way. In addition to the above described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present application will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the schematic diagram of the main structure of the present application Figure 1 ;

[0028] Figure 2 is the schematic diagram of the main structure of the present application Figure 2 ;

[0029] Figure 3 is the schematic diagram of the sectional structure of the fixed pipe and the extension pipe of the present application

[0030] Figure 4 is the schematic diagram of the internal structure of the connecting pipe of the present application

[0031] Figure 5 is the schematic diagram of the internal structure of the connecting head of the present application Figure 1 ;

[0032] Figure 6 is the schematic diagram of the internal structure of the connecting head of the present application Figure 2 ;

[0033] Figure 7The internal structure of the connecting head of the application Figure 3 ;

[0034] Figure 8 The A-A cross-sectional structure of the application Figure 7 ;

[0035] Figure 9 The fixed handle structure of the application.

[0036] In the figure: 1, handle body; 2, fixed tube; 3, extension tube; 4, electric telescopic rod; 5, connecting frame; 6, top rod; 7, transmission wire; 8, fixed handle; 9, movable handle; 10, main switch; 11, display screen; 12, control switch; 13, connecting tube; 14, first motor; 15, first connecting shaft; 16, first driving bevel gear; 17, rotary joint; 18, fixed frame; 19, fixed shaft; 20, first driven bevel gear; 21, connecting head; 22, second motor; 23, second connecting shaft; 24, second driving bevel gear; 25, bearing; 26, pin shaft; 27, second driven bevel gear; 28, movable support; 29, clamping head; 30, battery. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0038] Embodiment one

[0039] Please refer to Figure 1 - Figure 9 A radio frequency ablation surgical forceps with telescopic and steering functions, comprising a handle body 1, a fixed tube 2, a connecting tube 13, a connecting head 21 and two sets of clamping heads 29.

[0040] The handle body 1 is provided below with a fixed handle 8 and a movable handle 9, the fixed handle 8 is provided with a main switch 10, the top of the fixed handle 8 is provided with a battery 30, the handle body 1 is provided inside with a controller, the controller is signal connected with the electric telescopic rod 4, the first motor 14 and the second motor 22, one side of the handle body 1 is provided with a display screen 11 and a control switch 12, and the rear end of the handle body 1 is connected with a transmission wire 7; the control switch 12 controls the electric telescopic rod 4 and the first motor 14 respectively, the movable handle 9 is pulled down to trigger the control of the second motor 22, a manual control clamping mode is reserved, and the operation feeling is facilitated.

[0041] The fixed tube 2 is installed at the front end of the handle main body 1, the fixed tube 2 is sleeved with the extension tube 3 outside, and the extension tube 3 is provided with a telescopic assembly for extending on the fixed tube 2; the telescopic assembly comprises an electric telescopic rod 4 installed in the fixed tube 2, the output end of the electric telescopic rod 4 is connected with a top rod 6 at the front end, and the top rod 6 is fixed to the inner wall of the extension tube 3. The electric telescopic rod 4 can be provided in one group or multiple groups. When the electric telescopic rod 4 is provided in multiple groups, only the last electric telescopic rod 4 is fixed in the fixed tube 2, and the rest of the electric telescopic rods 4 are slidingly arranged, the output end of the frontmost electric telescopic rod 4 is connected with the top rod 6 at the front end, and the output end of the rear electric telescopic rod 4 is connected with the base of the front electric telescopic rod 4 through the connecting frame 5.

[0042] The connecting pipe 13 is installed at the front end of the extension tube 3, and the connecting pipe 13 is provided with a driving assembly; the driving assembly comprises a first motor 14 installed in the connecting pipe 13, the output shaft of the first motor 14 is connected with a first connecting shaft 15, and the front end of the first connecting shaft 15 is fixed with a first driving bevel gear 16.

[0043] The connecting head 21 is installed at the front end of the connecting pipe 13, the rear end of the connecting head 21 is fixed with a rotary joint 17 which is rotationally matched with the pipe cavity of the connecting pipe 13, the rotary joint 17 is provided with a rotating assembly matched with the driving assembly, the rotating assembly comprises a fixed frame 18 fixed to the rear end of the rotary joint 17, the fixed frame 18 is rotationally connected with the connecting pipe 13 through a fixed shaft 19, and the fixed shaft 19 is fixed with a first driven bevel gear 20 meshed with the first driving bevel gear 16.

[0044] The second motor 22 is installed in the connecting head 21, the output shaft of the second motor 22 is connected with a second connecting shaft 23, and the front end of the second connecting shaft 23 is fixed with a second driving bevel gear 24.

[0045] The two groups of clamping heads 29 are connected with movable supports 28 at the rear end, the two groups of movable supports 28 are hingedly installed in the connecting head 21 through a pin shaft 26, the pin shaft 26 is provided with bearings 25 at both ends, the inner sides of the two groups of movable supports 28 are fixed with second driven bevel gears 27 meshed with the second driving bevel gear 24, and the two groups of clamping heads 29 are provided with radio frequency current release structures. The clamping head 29 is provided with a tissue recognition module, the tissue recognition module controls the radio frequency current release structure to make energy adjustment by measuring the impedance of the tissue, so as to avoid tissue carbonization. The outer sides of the two groups of clamping heads 29 are coated with a heat-proof coating. The two groups of movable supports 28 are centrally symmetrical, the two groups of second driven bevel gears 27 are mirror-symmetrical and rotationally connected with the pin shaft 26.

[0046] The working principle of this embodiment is as follows: when using the device, the electric telescopic rod 4 is controlled by the control switch 12. Specifically, the electric telescopic rod 4 is started, the output end extends toward the front end, driving the top rod 6 to extend toward the front end, so that the extension tube 3 extends on the fixed tube 2, thereby adjusting the operating length of the device to adapt to different usage conditions, and can also be flexibly adjusted during use.

[0047] The first motor 14 is controlled by the control switch 12. Specifically, the first motor 14 is started, and the output shaft of the first motor 14 drives the first connecting shaft 15 to rotate, the first connecting shaft 15 drives the first active bevel gear 16 to rotate, and the first active bevel gear 16 drives the first driven bevel gear 20 to rotate, thereby driving the connecting head 21 to rotate, thereby realizing the angle adjustment of the connecting head 21 and the clamping head 29, which is convenient for adjusting the direction in deep and narrow areas where human hands cannot rotate, and is convenient for operation.

[0048] Pulling down the movable handle 9 triggers control of the second motor 22. Specifically, the second motor 22 starts, and the output shaft of the second motor 22 drives the second connecting shaft 23 to rotate. The second connecting shaft 23 drives the second driving bevel gear 24 to rotate. The second driving bevel gear 24 drives the two sets of second driven bevel gears 27 to rotate in opposite directions, thereby driving the two sets of clamping heads 29 to rotate in opposite directions, achieving the opening of the clamping heads 29. The second motor 22 reverses to achieve the clamping of the clamping heads 29. The RF current release structure within the clamping head 29 generates resistive heat in the tissue through RF current, achieving localized tissue thermal necrosis. The tissue recognition module controls the RF current release structure to adjust the energy to avoid tissue carbonization.

[0049] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0050] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0052] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. The illustrative description of the above terms in the present specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A radiofrequency ablation surgical forceps with telescopic and steering functions, characterized in that: include: A handle body (1), a fixed handle (8) and a movable handle (9) are installed below the handle body (1), a main switch (10) is provided on the fixed handle (8), a controller is provided inside the handle body (1), a display screen (11) and a control switch (12) are provided on one side of the handle body (1), a battery (30) is provided on the top of the fixed handle (8), and a transmission wire (7) is connected to the rear end of the handle body (1); A fixed tube (2), the fixed tube (2) being mounted on the front end of the handle body (1), an extension tube (3) being sleeved on the outside of the fixed tube (2), a telescopic assembly being arranged inside the fixed tube (2) so as to enable the extension tube (3) to extend on the fixed tube (2); the telescopic assembly comprising an electric telescopic rod (4) mounted in the fixed tube (2), the front end of the output end of the electric telescopic rod (4) being connected to a push rod (6), the front end of the push rod (6) being fixed to the inner wall of the extension tube (3); A connecting tube (13), the connecting tube (13) being mounted at the front end of the extension tube (3), a driving assembly being provided in the connecting tube (13); the driving assembly comprising a first motor (14) mounted in the connecting tube (13), an output shaft of the first motor (14) being connected to a first connecting shaft (15), a first driving bevel gear (16) being fixed to the front end of the first connecting shaft (15); A connector (21) is mounted on the front end of the connecting tube (13); a rotary joint (17) is fixed to the rear end of the connecting tube (13) and is rotatably engaged with the connecting tube (13); a rotary assembly is provided on the rotary joint (17) and is engaged with the driving assembly; the rotary assembly includes a fixing frame (18) fixed to the rear end of the rotary joint (17); the fixing frame (18) is rotatably connected to the connecting tube (13) via a fixing shaft (19); a first driven bevel gear (20) is fixed to the fixing shaft (19) and is engaged with the first driving bevel gear (16); a second motor (22) is mounted in the connecting tube (21); an output shaft of the second motor (22) is connected to a second connecting shaft (23); a second driving bevel gear (24) is fixed to the front end of the second connecting shaft (23); Two groups of clamping heads (29), the rear ends of the two groups of clamping heads (29) are connected to movable brackets (28), the two groups of movable brackets (28) are hingedly installed in the connecting head (21) through pins (26), bearings (25) are provided at both ends of the pins (26), and a second driven bevel gear (27) meshing with the second active bevel gear (24) is fixed inside the two groups of movable brackets (28), and a radio frequency current release structure is provided in the two groups of clamping heads (29).

2. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 1, characterized in that: The controller is signal-connected to the electric telescopic rod (4), the first motor (14), and the second motor (22).

3. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 1, characterized in that: The outer sides of the two groups of clamping heads (29) are coated with a heat-resistant coating.

4. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 1, characterized in that: The two groups of movable brackets (28) are centrally symmetrical, and the two groups of the second driven bevel gears (27) are mirror-symmetrical and are rotationally connected to the pin shaft (26).

5. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 1, characterized in that: A tissue identification module is provided in the clamping head (29), and the tissue identification module controls the radio frequency current release structure to make energy adjustments by measuring tissue impedance, thereby avoiding tissue carbonization.

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