Radiofrequency ablation operating forceps with telescopic and steering functions

Abstract

The invention discloses a pair of radiofrequency ablation operating forceps with telescopic and steering functions, and relates to the technical field of medical instruments. The telescopic assembly enabling the extension pipe to extend on the fixed pipe is arranged in the fixed pipe, and the length adjustment of the fixed pipe and the extension pipe can be realized by controlling the telescopic assembly, so that different use conditions can be adapted, and flexible adjustment can be performed during use. The rotary joint rotationally matched with the connecting pipe is fixed to the rear end of the connector, the driving assembly is arranged in the connecting pipe, the rotary assembly matched with the driving assembly is arranged on the rotary joint, angle adjustment of the connector on the connecting pipe can be achieved by controlling the driving assembly, and therefore angle adjustment of the clamping head is achieved; the direction can be conveniently adjusted in a deep narrow area where a hand cannot rotate, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a radiofrequency ablation surgical forceps with telescopic and steering functions. Background Art

[0002] In the field of surgery, electrocoagulation technology has been widely used as an important method of hemostasis and tissue processing. Traditional electrocoagulation surgical forceps often face two major technical difficulties during operation: one is the accuracy of current regulation, and the other is the limitation of surgical field. These difficulties directly affect the surgical effect, tissue healing speed and surgical safety.

[0003] Traditional electrocoagulation surgical forceps usually do not have precise current control devices, 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, excessively high current may cause extensive damage to surrounding tissues, prolong healing time, and even cause complications; while too low current may not achieve the expected hemostasis and tissue coagulation effects.

[0004] In complex surgical operations, especially those involving narrow fields of view or operations in remote and deep areas, traditional surgical forceps are often difficult to reach, making the operation more difficult and limiting the effect. For example, when dealing with large blood vessels in deep cavities or organs that are difficult to reach, the linear operation method of traditional surgical forceps is difficult to meet surgical needs, which may increase surgical risks and affect surgical results.

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

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

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

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

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

[0010] A fixed tube, the fixed tube is installed at the front end of the handle body, an extension tube is sleeved on the outer side of the fixed tube, and a telescopic component is arranged inside the fixed tube to enable the extension tube to extend on the fixed tube;

[0011] A connecting pipe, the connecting pipe is installed at the front end of the extension pipe, and a driving assembly is arranged in the connecting pipe;

[0012] A connector, the connector is installed at the front end of the connecting pipe, a rotating joint that rotates with the connecting pipe is fixed to the rear end of the connector, a rotating assembly that cooperates with the driving assembly is arranged on the rotating joint, a second motor is installed in the connector, a second connecting shaft is connected to the output shaft of the second motor, and a second active bevel gear is 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 with movable brackets, the two groups of movable brackets are hingedly installed in the connecting head through pin shafts, bearings are arranged at both ends of the pin shafts, the second driven bevel gear meshing 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 arranged in the two groups of clamping heads.

[0014] Preferably, the telescopic assembly comprises 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 a connecting tube, an output shaft of the first motor is connected to a first connecting shaft, and a first driving bevel gear is fixed to a front end of the first connecting shaft.

[0016] Preferably, the rotating assembly comprises 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 the 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 invention provides a telescopic assembly in the fixed tube to allow the extension tube to extend on the fixed tube. By controlling the telescopic assembly, the length of the fixed tube and the extension tube can be adjusted to adapt to different usage conditions and can also be flexibly adjusted during use.

[0023] (2) The present invention fixes a rotating joint that rotates with the connecting tube at the rear end of the connecting head, a driving assembly is arranged in the connecting tube, and a rotating assembly that cooperates with the driving assembly is arranged on the rotating joint. By controlling the driving assembly, the angle of the connecting head on the connecting tube can be adjusted, thereby achieving the angle adjustment of the clamping head, which is convenient for adjusting the direction in deep and narrow areas where human hands cannot rotate, and is easy to operate.

[0024] (3) The present invention reduces the damage of heat to surrounding tissues by coating the outer side of the clamping head with a heat-resistant coating.

[0025] (4) The present invention provides a radio frequency current release structure in the clamping head, and generates resistive heat in the tissue through radio frequency current to achieve local tissue thermal necrosis, tissue dehydration but not carbonization, with little impact on surrounding tissues. The action area can be precisely controlled, and a tissue identification module is provided to control the radio frequency current release structure to make energy adjustments, which can further avoid tissue carbonization.

[0026] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The main structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The main structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed tube and the extension tube of the present invention;

[0030] Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of the present invention;

[0031] Figure 5 Schematic diagram of the internal structure of the connector of the present invention Figure 1 ;

[0032] Figure 6 Schematic diagram of the internal structure of the connector of the present invention Figure 2 ;

[0033] Figure 7Schematic diagram of the internal structure of the connector of the present invention Figure 3 ;

[0034] Figure 8 For the present invention Figure 7 AA cross-sectional structure diagram;

[0035] Fig. 9 This is a schematic diagram of the fixed handle structure of the present invention.

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

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0038] Embodiment 1

[0039] See also Figure 1 - Fig. 9 A radiofrequency ablation surgical forceps with telescopic and steering functions includes a handle body 1, a fixing tube 2, a connecting tube 13, a connecting head 21 and two groups of clamping heads 29.

[0040] A fixed handle 8 and a movable handle 9 are installed below the handle body 1, a main switch 10 is arranged on the fixed handle 8, a battery 30 is arranged on the top of the fixed handle 8, a controller is arranged in the handle body 1, and the controller is connected to the electric telescopic rod 4, the first motor 14 and the second motor 22 by signal. A display screen 11 and a control switch 12 are arranged on one side of the handle body 1, and a transmission wire 7 is connected to the rear end of the handle body 1; the control switch 12 controls the electric telescopic rod 4 and the first motor 14 respectively, and the movable handle 9 is pulled down to trigger the control of the second motor 22, and the manual control clamping mode is retained to facilitate improving the operating feel.

[0041] The fixed tube 2 is installed at the front end of the handle body 1, and an extension tube 3 is sleeved on the outer side of the fixed tube 2. A telescopic assembly is arranged in the fixed tube 2 so that the extension tube 3 can extend on the fixed tube 2; the telescopic assembly includes an electric telescopic rod 4 installed in the fixed tube 2, and the front end of the output end of the electric telescopic rod 4 is connected to a push rod 6, and the front end of the push rod 6 is fixed to the inner wall of the extension tube 3. The electric telescopic rod 4 can be arranged in one group or in multiple groups. When multiple groups of electric telescopic rods 4 are arranged, only the rearmost electric telescopic rod 4 is fixed in the fixed tube 2, and the rest of the electric telescopic rods 4 are slidably arranged, and the front end of the output end of the frontmost electric telescopic rod 4 is connected to the push rod 6, and the output end of the rear electric telescopic rod 4 is connected to the base of the front electric telescopic rod 4 through a connecting frame 5.

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

[0043] A connecting head 21 is installed at the front end of the connecting tube 13, and a rotating joint 17 that rotates with the lumen of the connecting tube 13 is fixed at the rear end of the connecting head 21. A rotating assembly that cooperates with the driving assembly is provided on the rotating joint 17. The rotating assembly includes a fixed frame 18 fixed to the rear end of the rotating joint 17. The fixed frame 18 is rotatably connected to the connecting tube 13 through a fixed shaft 19, and a first driven bevel gear 20 that meshes with the first active bevel gear 16 is fixed on the fixed shaft 19.

[0044] A second motor 22 is installed in the connector 21 . The 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 .

[0045] The rear ends of the two groups of clamping heads 29 are connected with movable brackets 28, which are hingedly installed in the connecting head 21 through pins 26. Bearings 25 are arranged at both ends of the pins 26. The second driven bevel gears 27 meshing with the second active bevel gear 24 are fixed on the inner sides of the two groups of movable brackets 28. The two groups of clamping heads 29 are provided with radio frequency current release structures. The clamping heads 29 are provided with tissue recognition modules, which control the radio frequency current release structure to make energy adjustments by measuring tissue impedance to avoid tissue carbonization. The outer sides of the two groups of clamping heads 29 are coated with heat-resistant coatings. The two groups of movable brackets 28 are centrally symmetrical, and the two groups of second driven bevel gears 27 are mirror-symmetrical and are rotationally connected with the pins 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, and 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, so as to achieve angle adjustment of the connecting head 21 and the clamping head 29, which is convenient for adjusting the direction in a deep and narrow area where the human hand cannot rotate, and is easy to operate.

[0048] The control of the second motor 22 is triggered by pulling down the movable handle 9. Specifically, the second motor 22 is started, the output shaft of the second motor 22 drives the second connecting shaft 23 to rotate, the second connecting shaft 23 drives the second active bevel gear 24 to rotate, and the second active 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 to achieve the opening of the clamping heads 29, and the second motor 22 reverses to achieve the clamping of the clamping heads 29. The radio frequency current release structure in the clamping head 29 generates resistance heat in the tissue through radio frequency current to achieve local tissue thermal necrosis, and the tissue recognition module controls the radio frequency current release structure to make energy adjustments 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 as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

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 arranged on the fixed handle (8), a controller is arranged inside the handle body (1), a display screen (11) and a control switch (12) are arranged on one side of the handle body (1), a storage battery (30) is arranged 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), and 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); A connecting pipe (13), the connecting pipe (13) being mounted on the front end of the extension pipe (3), and a driving assembly being arranged in the connecting pipe (13); A connecting head (21), the connecting head (21) being mounted on the front end of the connecting tube (13), a rotating joint (17) being fixed at the rear end of the connecting head (21) and being rotatably matched with the connecting tube (13), a rotating assembly being arranged on the rotating joint (17) and being matched with the driving assembly, a second motor (22) being mounted in the connecting head (21), an output shaft of the second motor (22) being connected to a second connecting shaft (23), and a second active bevel gear (24) being fixed at 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 with movable brackets (28), the two groups of movable brackets (28) are hingedly installed in the connecting head (21) through pin shafts (26), bearings (25) are arranged at both ends of the pin shafts (26), the inner sides of the two groups of movable brackets (28) are fixed with second driven bevel gears (27) meshing with the second active bevel gear (24), and radio frequency current release structures are arranged 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 telescopic assembly comprises an electric telescopic rod (4) installed in a fixed tube (2), the front end of the output end of the electric telescopic rod (4) is connected to a push rod (6), and the front end of the push rod (6) is fixed to the inner wall of the extension tube (3). A connecting frame (5).

3. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 2, characterized in that: The driving assembly comprises a first motor (14) installed in a connecting pipe (13); an output shaft of the first motor (14) is connected to a first connecting shaft (15); a first driving bevel gear (16) is fixed to a front end of the first connecting shaft (15).

4. The radiofrequency ablation surgical forceps with telescopic and steering functions according to claim 3, characterized in that: The rotating assembly comprises a fixing frame (18) fixed to the rear end of the rotating joint (17); the fixing frame (18) is rotatably connected to the connecting pipe (13) via a fixing shaft (19); a first driven bevel gear (20) meshing with the first driving bevel gear (16) is fixed to the fixing shaft (19).

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

6. 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.

7. 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).

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

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