Fixed rotatable laparoscope low-temperature plasma operation electrode

Abstract

The utility model discloses a fixed rotatable laparoscope low-temperature plasma operation electrode, which belongs to the technical field of plasma operation electrodes and comprises an electrode stem component, a handle and a power line, the electrode stem component is rotatably connected with the handle, and the power line is inserted into one end of the handle. According to the fixed rotatable laparoscope low-temperature plasma operation electrode, the stability of the operation electrode can be improved, the accuracy of the operation can be improved, the angle of the operation electrode tool bit can be rotationally adjusted, the practicability of the product is improved, the breakdown phenomenon caused by a gap between the upper shell and the lower shell can be prevented, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of plasma surgical electrodes, in particular to a fixed and rotatable laparoscope low-temperature plasma surgical electrode. Background Art

[0002] Although the existing laparoscopic surgical electrodes can meet the functions of cutting tissue and electrocoagulation hemostasis during surgery, they still have the following defects during surgery:

[0003] First, the surgical electrode rod is not stable enough, which causes axial movement and shaking of the rod during the operation, affecting the accuracy of medical staff's control of the electrode blade to perform the operation.

[0004] Second, during clinical surgery, due to the influence of lesion location, lesion shape, etc., the surgeon needs to adjust the orientation and angle of the surgical electrode tip; therefore, the surgical electrode tip needs to have the function of rotating in a circle around the axis of the electrode rod.

[0005] Third, the surgical electrode handle has a safety hazard of electric shock. The joint between the upper and lower shells of the handle is located at the hand-grip position. The upper and lower shells rely on assembly processes such as bonding and ultrasonic welding to ensure that there is no gap. It is impossible to prevent the gap between the upper and lower shells from forming, resulting in breakdown, which poses a certain safety hazard.

[0006] Therefore, the utility model provides a fixed and rotatable laparoscopic low-temperature plasma surgery electrode to solve the problems raised in the above background technology. Utility Model Content

[0007] In view of the above problems, the utility model provides a fixed and rotatable laparoscopic low-temperature plasma surgical electrode. The fixed and rotatable laparoscopic low-temperature plasma surgical electrode can increase the stability of the surgical electrode, improve the accuracy of the operation, can rotate and adjust the angle of the surgical electrode head, increase the practicality of the product, prevent the formation of gaps between the upper and lower shells and thus cause breakdown, and reduce safety hazards.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A fixed and rotatable laparoscopic low-temperature plasma surgery electrode comprises: an electrode rod assembly, a handle, and a power cord, wherein the electrode rod assembly is rotatably connected to the handle, and one end of the handle is plugged with the power cord;

[0010] The electrode rod assembly includes: a cutter head, a ceramic insulating head, an inner electrode rod, an inner insulating tube, an outer electrode rod, an outer insulating tube, and a contact limit rod. A cutter head is welded to one end of the inner electrode rod, the inner electrode rod is fixedly connected to the ceramic insulating head, the inner insulating tube is sleeved on the surface of the inner electrode rod, the outer insulating tube is sleeved on the surface of the outer electrode rod, and a contact limit rod is welded to the other end of the inner electrode rod.

[0011] As a further improvement of the above technical solution, the handle includes: an upper shell, a lower shell, a front sleeve, a rear sleeve, a positioning block, a control circuit board, and a snap element. The bottom end of the upper shell is staggered with the lower shell, the front sleeve is fixed to the front end of the upper shell and the lower shell, the rear sleeve is fixed to the rear of the upper shell and the lower shell, the positioning block is installed on the lower shell, and a snap element is welded on the control circuit board.

[0012] As a further improvement of the above technical solution, the inner electrode rod and the outer electrode rod are connected via a support sleeve.

[0013] As a further improvement of the above technical solution, a button is provided on the upper shell.

[0014] As a further improvement of the above technical solution, the two ends of the positioning block adopt a trumpet-shaped structure, the two ends of the positioning block are matched and fixed with the positioning inclined surfaces of the contact limit rod, and the interior of the positioning block is clearance-matched with the contact limit rod.

[0015] As a further improvement of the above technical solution, an insulating gasket is provided inside the handle, and the buckle element passes through the insulating gasket and is engaged with the contact limit rod.

[0016] As a further improvement of the above technical solution, one end of the front sleeve is rotatably connected to the support sleeve, and the other end is clearance-matched with the outer electrode rod.

[0017] As a further improvement of the above technical solution, the control circuit board is controlled on and off by a button.

[0018] As a further improvement of the above technical solution, the upper shell and the lower shell adopt a stepped structure, and a continuous ultrasonic welding line is arranged between the upper shell and the lower shell.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] By rotating the outer electrode rod to drive the inner electrode rod to rotate, the inner electrode rod drives the blade to rotate and adjust the angle, so that the angle of the surgical electrode blade can be rotated and adjusted, thereby increasing the practicality of the product; at the same time, after the power cord is energized to the blade, the upper shell and the lower shell arranged inside the handle adopt a step-type structure to stagger and cooperate, and the upper shell and the lower shell are provided with a continuous ultrasonic welding line to prevent the generation of gaps between the upper and lower shells and thus prevent breakdown, thereby reducing safety hazards; the two ends of the positioning block installed on the lower shell adopt a trumpet-shaped structure, and are matched and fixed with the positioning inclined surface of the contact limit rod, thereby limiting the axial displacement of the electrode rod assembly, and the contact limit rod cooperates with the internal gap of the positioning block, so that the electrode rod assembly 1 rotates in the positioning block 205, thereby ensuring that the inner electrode rotates in the handle without running around, which can increase the stability of the surgical electrode and improve the accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the lower housing and the positioning block of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the inner insulating tube, the outer insulating tube, the contact limiting rod and other components of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the upper shell and the lower shell of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the inner electrode rod and the outer electrode rod of the utility model;

[0026] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0027] In the figure: 1. electrode rod assembly; 2. handle; 3. power cord; 4. insulating gasket; 101. cutter head; 102. ceramic insulating head; 103. inner electrode rod; 104. inner insulating tube; 105. outer electrode rod; 106. outer insulating tube; 107. contact limit rod; 201. upper shell; 202. lower shell; 203. front sleeve; 204. rear sleeve; 205. positioning block; 206. control circuit board; 207. snap element; 5. support sleeve; 6. continuous ultrasonic welding line. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model. Example

[0029] like Figure 1-5 As shown, a fixed and rotatable laparoscopic low-temperature plasma surgery electrode comprises: an electrode rod assembly 1, a handle 2, and a power cord 3. The electrode rod assembly 1 is rotatably connected to the handle 2, and one end of the handle 2 is plugged with the power cord 3;

[0030] The electrode rod assembly 1 includes: a cutter head 101, a ceramic insulating head 102, an inner electrode rod 103, an inner insulating tube 104, an outer electrode rod 105, an outer insulating tube 106, and a contact limit rod 107. The cutter head 101 is welded to one end of the inner electrode rod 103, the inner electrode rod 103 is fixedly connected to the ceramic insulating head 102, the inner insulating tube 104 is wrapped around the surface of the inner electrode rod 103, the surface of the outer electrode rod 105 is wrapped with the outer insulating tube 106, and the other end of the inner electrode rod 103 is welded to the contact limit rod 107.

[0031] As a preferred embodiment of the above embodiment, the handle 2 includes: an upper shell 201, a lower shell 202, a front sleeve 203, a rear sleeve 204, a positioning block 205, a control circuit board 206, and a snap element 207. The bottom end of the upper shell 201 is staggered with the lower shell 202, the front sleeve 203 is fixed to the front end of the upper shell 201 and the lower shell 202, the rear sleeve 204 is fixed to the rear of the upper shell 201 and the lower shell 202, the positioning block 205 is installed on the lower shell 202, and the snap element 207 is welded on the control circuit board 206.

[0032] As a preferred embodiment of the above embodiment, the inner electrode rod 103 and the outer electrode rod 105 are connected via a support sleeve 5 .

[0033] As a preferred embodiment of the above embodiment, buttons are provided on the upper shell 201 .

[0034] As a preferred embodiment of the above embodiment, both ends of the positioning block 205 adopt a trumpet-shaped structure, and both ends of the positioning block 205 are matched and fixed with the positioning inclined surfaces of the contact limiter 107, and the interior of the positioning block 205 is clearance-matched with the contact limiter rod 107.

[0035] As a preferred embodiment of the above embodiment, an insulating gasket 4 is provided inside the handle 2 , and the snap element 207 penetrates through the insulating gasket 4 and snaps into contact with the limit rod 107 .

[0036] As a preferred embodiment of the above embodiment, one end of the front sleeve 203 is rotatably connected to the support sleeve 5 , and the other end is clearance-matched with the outer electrode rod 105 .

[0037] As a preferred embodiment of the above embodiment, the control circuit board 206 is controlled on and off by buttons.

[0038] As a preferred embodiment of the above embodiment, the upper shell 201 and the lower shell 202 adopt a stepped structure, and a continuous ultrasonic welding line 6 is provided between the upper shell 201 and the lower shell 202 .

[0039] The specific working principle of this utility model:

[0040] During the operation, the outer insulating rod is manually rotated to drive the outer electrode rod 105 to rotate, so that the outer electrode rod 105 rotates in the front end sleeve. Since the outer electrode rod 105 is connected to the inner electrode rod 103 through the support sleeve 5, when the outer electrode rod 105 rotates in the front end sleeve, the outer electrode rod 105 drives the support sleeve 5 to rotate to drive the inner electrode rod 103 and the inner insulating tube 104 to rotate. At the same time, a cutter head 101 is welded to one end of the inner electrode rod 103, and a contact limit rod 107 is welded to the other end. When the inner electrode rod 103 rotates, the contact limit rod 107 and the cutter head 101 are simultaneously driven to rotate. , thereby adjusting the rotation angle of the surgical electrode blade 101. On the other hand, since the inner electrode rod 103 is fixedly connected to the ceramic insulating head 102, the inner electrode rod 103 will drive the ceramic insulating head 102 to rotate at the same time. Since the ceramic insulating head 102 is made of ceramic material, it has good insulation and will not conduct electricity. At the same time, the surfaces of the inner electrode rod 103 and the outer electrode rod 105 are respectively wrapped with an inner insulating tube 104 and an outer insulating tube 106. At the same time, an insulating gasket 4 is arranged inside the handle 2 to further wrap the inner electrode rod 103. The main thing is that the upper shell 201 and the lower shell 202 of the handle 2 adopt a step The upper shell 201 and the lower shell 202 are provided with a continuous ultrasonic welding line 6 to avoid the generation of a gap, so that the upper shell 201 and the lower shell 202 are tightly connected. Then the power line 3 is manually connected to the power supply, so that the power enters the control circuit board 206 through the power line 3, and then the control circuit board 206 energizes the inner electrode rod 103, the outer electrode rod 105, and the cutter head 101 through the buckle element 207. Since the upper shell 201 and the lower shell 202 have adopted the above-mentioned insulation preparation, the current inside them cannot produce a breakdown phenomenon, reducing the safety hazard, and then it can be The control circuit board 206 is controlled by manually pressing a button to realize the corresponding function of the surgical electrode. When the inner electrode rod 103 rotates, the two ends of the positioning pressing block 205 installed on the lower shell 202 adopt a trumpet-shaped structure and are matched and fixed with the positioning inclined surface of the contact limit rod 107, thereby limiting the movement of the electrode rod assembly 1 in the axial direction. At the same time, the inside of the positioning pressing block 205 is matched with the contact limit rod 107, so that the electrode rod assembly 1 rotates in the positioning pressing block 205, thereby ensuring that the inner electrode rotates in the handle 2 without running around, ensuring the stability of the overall operation of the surgical electrode, and improving the accuracy of the operation.

[0041] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention.

[0043] The above is only a preferred embodiment of the present utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the present utility model.

Claims

1. A fixed and rotatable laparoscopic low-temperature plasma surgery electrode, characterized in that: include: An electrode rod assembly (1), a handle (2), and a power cord (3), wherein the electrode rod assembly (1) is rotatably connected to the handle (2), and one end of the handle (2) is plugged with the power cord (3); The electrode rod assembly (1) comprises: a cutter head (101), a ceramic insulating head (102), an inner electrode rod (103), an inner insulating tube (104), an outer electrode rod (105), an outer insulating tube (106), and a contact stop rod (107); the cutter head (101) is welded to one end of the inner electrode rod (103); the inner electrode rod (103) is fixedly connected to the ceramic insulating head (102); the inner insulating tube (104) is sleeved on the surface of the inner electrode rod (103); the outer insulating tube (106) is sleeved on the surface of the outer electrode rod (105); and the contact stop rod (107) is welded to the other end of the inner electrode rod (103).

2. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 1, characterized in that: The handle (2) comprises: an upper shell (201), a lower shell (202), a front sleeve (203), a rear sleeve (204), a positioning block (205), a control circuit board (206), and a buckle element (207); the bottom end of the upper shell (201) is staggered with the lower shell (202); the front sleeve (203) is fixed to the front ends of the upper shell (201) and the lower shell (202); the rear sleeve (204) is fixed to the rear ends of the upper shell (201) and the lower shell (202); the positioning block (205) is mounted on the lower shell (202); and the buckle element (207) is welded on the control circuit board (206).

3. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 2, characterized in that: The inner electrode rod (103) and the outer electrode rod (105) are connected via a support sleeve (5).

4. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 3, characterized in that: The upper housing (201) is provided with buttons.

5. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 4, characterized in that: Both ends of the positioning pressing block (205) adopt a trumpet-shaped structure, and both ends of the positioning pressing block (205) are matched and fixed with the positioning inclined surfaces of the contact limiting rod (107), and the interior of the positioning pressing block (205) is clearance-matched with the contact limiting rod (107).

6. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 5, characterized in that: An insulating gasket (4) is provided inside the handle (2), and the buckle element (207) penetrates the inside of the insulating gasket (4) and is buckled with the contact limiting rod (107).

7. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 6, characterized in that: One end of the front sleeve (203) is rotatably connected to the support sleeve (5), and the other end is clearance-matched with the outer electrode rod (105).

8. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 7, characterized in that: The control circuit board (206) is controlled on and off by a key.

9. The fixed and rotatable laparoscopic low-temperature plasma surgery electrode according to claim 8, characterized in that: The upper shell (201) and the lower shell (202) adopt a stepped structure, and a continuous ultrasonic welding line (6) is provided between the upper shell (201) and the lower shell (202).

Images