Electrocoagulation assembly with anti-hanging function

Abstract

The utility model discloses a kind of electric coagulation components with anti-hanging function, including outer tube and electric hook, the outer tube has opening, electric hook is set in outer tube inside, electric hook can be relatively moved with outer tube, electric hook has electrode head, electrode head extends opening or shrinks into outer tube, positioning mechanism is equipped between the electric hook and outer tube, when electrode head shrinks into outer tube, positioning mechanism restricts electric hook to shake.The utility model can make electric hook not interfere when retracting, operation is more smooth, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an electrocoagulation component with anti-snagging function. Background Technology

[0002] The flushing and aspiration electrode device is a surgical instrument that integrates flushing, aspiration, and radiofrequency ablation functions. It typically includes an electrocoagulation component and a control component connected to it. Users can operate the control component to rotate, flush, aspirate, and perform electrocoagulation. Existing electrocoagulation components usually consist of an outer tube and an electric hook. The electric hook is located inside the outer tube and protrudes from it. The hook is connected to a conductive part in the control component, allowing current to be introduced into it. During surgery, the hook contacts the tissue to perform electrocoagulation. However, because the electric hook is relatively thin and long, with one end fixed and the other end being a free end (the electrode tip), when the electrode tip is of an irregular shape such as a hook, the hook is prone to wobbling when retracting into the outer tube. The hook-shaped electrode tip can easily get caught at the opening of the outer tube, causing interference and jamming. Users need to repeatedly operate to retract the hook into the outer tube, resulting in a poor user experience and reduced surgical efficiency. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problem that existing electric hooks and outer tubes are prone to interference when used in telescopic applications.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted:

[0005] An electrocoagulation assembly with anti-snagging function includes an outer tube and an electric hook. The outer tube has an opening, and the electric hook is disposed inside the outer tube. The electric hook and the outer tube are movable relative to each other. The electric hook has an electrode head that extends out of the opening or retracts into the outer tube. A positioning mechanism is provided between the electric hook and the outer tube. When the electrode head is retracted into the outer tube, the positioning mechanism restricts the swaying of the electric hook.

[0006] In some embodiments, the positioning mechanism includes an angle disposed on the electric hook, the electric hook including a rod body, the electrode head disposed at one end of the rod body, and an angle between the rod body and the electrode head.

[0007] In some embodiments, the back of the electric hook is brought together downwards.

[0008] In some embodiments, the electric hook has a curved portion that bends upward.

[0009] In some embodiments, a limiting member is provided inside the outer tube, and the electric hook is connected to the limiting member and slides relative to the limiting member.

[0010] In some embodiments, the limiting member has a slot in which the electric hook is engaged.

[0011] In some embodiments, the limiting member is annular and is vertically disposed on the inner wall of the outer tube.

[0012] In some embodiments, the limiting member has a hollow portion that communicates with a fluid channel inside the outer tube.

[0013] In some embodiments, the outer tube is movable, and the electric hook is fixed.

[0014] In some embodiments, when the electrode head is retracted into the outer tube, the distance between the electrode head and the opening is 7 to 9 millimeters.

[0015] The electrocoating assembly with anti-snagging function provided by this utility model has the following advantages:

[0016] This invention reduces the shaking between the electric hook and the outer tube through a positioning mechanism, so that the electric hook will not interfere when it retracts, making the operation smoother and improving surgical efficiency; by setting a curved part on the electric hook, anti-snagging can be achieved without adding extra parts, reducing costs and reducing obstruction of the fluid channel inside the outer tube; by setting a limiting component inside the outer tube, anti-snagging can be achieved without changing the shape and structure of the electric hook. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an electrocoating component with anti-snagging function provided in Embodiment 1 of the present invention.

[0019] Figure 2 This is a perspective view of the electrode head when it is extended according to Embodiment 1 of the present invention.

[0020] Figure 3 This is the present invention. Figure 1 Enlarged view of part A in the middle.

[0021] Figure 4 This is a perspective view of the electrical control section in Embodiment 1 of the present invention.

[0022] Figure 5 This is a cross-sectional view of the support tube in Embodiment 1 of the present invention.

[0023] Figure 6 This is a schematic diagram of the electric hook provided in Embodiment 2 of the present invention.

[0024] Figure 7 This is a schematic diagram of another electric hook provided in Embodiment 2 of the present invention.

[0025] Figure 8 This is a schematic diagram of the electrocoagulation assembly provided in Embodiment 3 of the present invention.

[0026] Figure 9 This is a schematic diagram of the limiting member provided in Embodiment 3 of the present invention.

[0027] Figure 10 This is a schematic diagram of the suction electrode device provided in Embodiment 4 of the present invention.

[0028] Figure 11 This is a schematic diagram of the through hole provided in Embodiment 4 of the present invention.

[0029] Figure 12 This is a schematic diagram of the hook-shaped electrode head provided in an embodiment of the present invention.

[0030] Figure 13 This is a schematic diagram of another hook-shaped electrode head provided in an embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of the shovel-shaped electrode head provided in an embodiment of the present invention.

[0032] Figure 15 This is a schematic diagram of another shovel-shaped electrode head provided in an embodiment of the present invention.

[0033] Figure 16 This is a schematic diagram of the needle-type electrode head provided in an embodiment of the present invention.

[0034] In the attached diagram

[0035] 100. Electrocoagulation assembly; 110. Outer tube; 111. Electrode section; 112. Opening; 113. Fluid channel; 114. Stepped surface; 115. First end; 116. Second end; 117. Support tube; 120. Electrode hook; 121. Electrode head; 122. Rod body; 123. Back; 124. Bending section; 130. Insulating sleeve; 140. Limiting element; 141. Slot; 200. Control assembly. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0037] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] <Example 1>

[0040] like Figures 1 to 5 As shown, this embodiment provides an electrocoagulation assembly 100 with anti-snagging function, including an outer tube 110 and an electric hook 120. The outer tube 110 is a circular tubular component, including an electric tube section 111. The electric tube section 111 is disposed at the end of the outer tube 110 and coaxially arranged with the outer tube 110, allowing direct contact with tissue during use. The electric tube section 111 is made of a conductive material, enabling energy to be conducted to the electric tube section 111. The electric tube section 111 has an opening 112, located at one end of the electric tube section 111. The area outside the opening 112 is the outside of the outer tube 110, and the area inside the opening 112 is the inside of the outer tube 110. The electric tube section 111 is annular in shape. An electric hook 120 is disposed inside the outer tube 110. The electric hook 120 and the outer tube 110 are movable relative to each other, meaning their relative positions can be changed. The electric hook 120 has an extended state and a retracted state. When the electric hook 120 is in the extended state, the electrode head 121 extends out of the opening 112, allowing for electrocoagulation, ablation, and other treatments. The electrode head 121 is located at the end of the electric hook 120. Besides the hook type provided in this embodiment, the electrode head 121 can also be a hook type (such as...). Figure 12 and Figure 13 ), shovel-shaped (such as) Figure 14 and Figure 15 ), needle type (such as Figure 16The appropriate type of electrode is selected based on the specific application scenario. When the electric hook 120 is in the retracted state, the electrode head 121 retracts into the outer tube 110. When the electrode head 121 retracts into the outer tube 110, the electric hook 120 contacts the electric tube section 111, thereby enabling the electric hook 120 to conduct energy to the electric tube section 111. The electric tube section 111 can perform electrocoagulation and other treatments. Since the size of the electric tube section is larger than that of the electric hook 120, it has a larger electrocoagulation and ablation treatment area, making it suitable for the treatment of large-area tissues. In this embodiment, the relative movement of the electric hook 120 and the outer tube 110 adopts a movable outer tube and a fixed electric hook configuration. That is, the outer tube 110 is retractable, while the electric hook 120 is fixed. When the outer tube 110 retracts or extends relative to the electric hook 120, the electric hook 120 can extend or retract into the outer tube 110. The outer tube 110 is connected to the telescopic push rod 170 of the suction electrode device, and the extension and retraction of the outer tube 110 is achieved by manually pushing and pulling the telescopic push rod 170. When the electrode head 121 is retracted into the outer tube 110, the distance between the electrode head 121 and the opening 112 is 7 to 9 millimeters. If the distance between the electrode head 121 and the opening 112 is too small, the fluid will be blocked by the electrode head 121 and branch during rinsing, affecting the rinsing effect. If the distance between the electrode head 121 and the opening is too large, since the total extension stroke is fixed, the retracted distance of the electrode head increases while the extended distance of the opening decreases. This can easily obstruct the user's view of the electrode head during operation, making it impossible to see the electrode head and affecting operation. In this embodiment, the preferred distance between the electrode head and the opening is 8 millimeters, the total stroke of the electrode head relative to the outer tube is 20 millimeters, and the distance between the electrode head and the opening is 12 millimeters when the electrode head is extended. In this embodiment, an inner tube 150 is provided inside the outer tube 110. The inner tube 150 and the outer tube 110 are coaxially arranged. The electric hook 120 is inserted into the inner tube 150. The end of the electric hook 150 is connected to the conductive tube 160. Current is introduced into the electric hook 150 through the conductive tube. The end of the conductive tube 160 is connected to the conductive part. The conductive part can adopt an existing mechanism, which will not be described in detail.

[0041] In the above technical solution, by setting an electric tube section 111 that can conduct electricity on the outer tube 110, and by changing the relative position of the electric hook 120 and the outer tube 110, the electric hook 120 or the outer tube 110 can be used to perform electrocoagulation and ablation treatment, which can be flexibly used according to different surgical situations, thereby improving the convenience of surgery.

[0042] Furthermore, the outer tube 110 includes a support tube 117 and a fluid channel 113. One end of the support tube 117 is connected to the electrical conduit 111. After connection, the shape of the outer tube 110 is the same as that of a commonly used outer tube 110, which is a circular tube. This prevents the formation of other irregular structures on the surface of the outer tube, ensuring a smooth and rounded surface and avoiding obstruction when penetrating deep into tissues. In this embodiment, the support tube 117 and the electrical conduit 111 are assembled via a stepped surface 114. The stepped surface 114 is arranged around the axis X of the outer tube 110 and is L-shaped. Specifically, the electrical conduit 111 includes a first tube body 1111 and a second tube body 1112 connected to the first tube body 1111 at one end. The diameter of the first tube body 1111 is smaller than that of the second tube body 1112, thereby forming a stepped surface 114 between the first and second tube bodies. The opening 112 is located at the end of the second tube body 1112. A fluid channel 113 extends through the outer tube 110 and communicates with the opening 112, extending from the first end 115 of the outer tube 110 to the second end 116. Fluid can flow through the fluid channel 113 between the first end 115 and the second end 116. During rinsing of the aspiration electrode device, fluids such as physiological saline enter through the first end 115 and flow out through the opening 112 via the fluid channel 113. During aspiration of the aspiration electrode device, external tissue fluid enters the fluid channel 113 through the opening 112 and flows out through the first end 115. An electric hook 120 is disposed in the fluid channel 113, and an electric tube 111 is disposed at the second end 116. The use of the electric tube 111 and the electric hook 120 is not affected during rinsing or aspiration.

[0043] Specifically, the support tube 117 is made of insulating material, thereby controlling the conductivity range of the outer tube 110 so that only a portion of the support tube 117 is conductive. The insulating material can be existing insulating materials such as plastic. As an improvement, the support tube 117 includes a connecting portion 1171 and a reinforcing portion 1172. One end of the connecting portion 1171 is connected to the conductive tube portion 111, and the other end is connected to the reinforcing portion 1172. The material strength of the reinforcing portion 1172 is greater than that of the connecting portion 1171. The reinforcing portion 1172 enhances the structural strength of the support tube 117, preventing insufficient overall strength when the support tube 117 is long. The reinforcing portion 1172 can be made of metal, and the connecting portion 1171 can be made of plastic. An insulating sleeve 130 is fitted onto the electric hook 120. When the electrode head 121 extends out of the opening 112, the insulating sleeve 130 is located in the electric tube section 111, isolating the electric tube section 111 from the electric hook 120. That is, when the electrode head 121 extends, the current from the electric hook will not be conducted to the electric tube section 111. At this time, only the electrode head 121 can be used and the electric tube section 111 can not be used, so as to avoid the electric tube section 111 from accidentally touching other tissues when the electrode head 121 is used because the electric tube section 111 and the electrode head 121 are energized at the same time.

[0044] <Example 2>

[0045] In this embodiment, the parts that are the same as in Embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.

[0046] like Figure 6 and Figure 7 As shown, compared to Embodiment 1, the electrocoagulation assembly 100 provided in this embodiment has the following structural design differences:

[0047] In this embodiment, the electric hook 120 is inclined towards the inner wall of the electrical tube 111, so that the electrode head 121 is close to the inner wall of the electrical tube 111, thereby enabling the electrode head 121 to contact the inner wall of the electrical tube when retracted. The electric hook 120 includes a rod 122, which is parallel to the axis X. The electrode head 121 is disposed at one end of the rod 122, and there is an angle α between the rod 122 and the electrode head 121. Through the angle α, when the electric hook 120 is retracted into the outer tube, the back of the electrode head 121 can maintain contact with the electrical tube 111 without disengaging, thereby ensuring the conductivity effect. At the same time, it can also prevent the electrode head 121 from interfering with the electrical tube when retracted. In this embodiment, the angle α is 170°.

[0048] like Figure 7 As shown, in another embodiment, the electric hook 120 has a bent portion 124, which faces upward (see reference). Figure 7 The back 123 of the electric hook 120 is bent downwards, causing the inner wall of the electrode head 121 to bend. This allows the back 123 to fit tightly against the tube when the electrode head 121 is retracted. At the same time, since the electrode head 121 is hook-shaped, the distance between the hook portion 1211 and the inner wall of the electrode head 121 is increased, preventing the electrode head 121 from being blocked by the tube 111 when it is retracted relative to the opening.

[0049] <Example 3>

[0050] In this embodiment, the parts that are the same as in Embodiments 1 and 2 are given the same reference numerals, and the same text descriptions are omitted.

[0051] like Figure 8 and Figure 9 As shown, compared to Embodiments 1 and 2, the electrocoagulation assembly 100 provided in this embodiment has the following structural design differences:

[0052] In this embodiment, a limiting member 140 is provided inside the outer tube 110. The limiting member 140 is annular and is vertically disposed on the inner wall of the outer tube 110, specifically on the inner wall of the electrical conduit section. The electric hook 120 is connected to the limiting member 140 and slides relative to the limiting member 140. The limiting member 140 limits the movement of the electric hook 120 in the Y direction without affecting its movement along the X-axis, thus not affecting the relative extension and retraction of the electric hook 120 and the outer tube 110, and the electric hook 120 will not wobble, avoiding interference with the electrical conduit section 111 during retraction, which could lead to a problem of inability to retract. Specifically, the limiting member 140 has a slot 141 in which the electric hook 120 is engaged. The slot 141 is arranged facing the radial direction of the outer tube. The limiting member 140 can be fixed to the inner wall of the outer tube 110 by existing connection methods such as bonding or embedding. The limiting member 140 has a hollowed-out portion 142, which is connected to the fluid channel 113 inside the outer tube, thereby preventing the fluid channel 113 from being blocked due to the setting of the limiting member.

[0053] <Example 4>

[0054] In this embodiment, the parts that are the same as in embodiments one to three are given the same reference numerals, and the same text descriptions are omitted.

[0055] like Figure 10 and Figure 11 As shown, compared with embodiments one to three, this embodiment provides a flushing electrocoagulation assembly, including a control assembly 200. The control assembly 200 is connected to the electrocoagulation assembly 100 and is used to control the electrocoagulation assembly 100. The control assembly 200 can adopt an existing control structure to enable the electrocoagulation assembly 100 to conduct electricity, flush, and suction.

[0056] Furthermore, the outer tube 110 of the electrocoagulation assembly 100 is provided with through holes 118, which are radially arranged and surrounded by several through holes 118, allowing the fluid channel 113 to communicate with the external environment. When fluid enters or exits the fluid channel 113, the fluid can also enter or exit through the through holes 118. The through holes 118 are used to balance negative pressure. Without the through holes 118, when the electrocoagulation assembly is in the suction state, tissue is easily sucked to the opening and stuck.

[0057] In the above embodiments one to four, during the working process, depending on the different working environments, some of the technical implementation methods of embodiments one to four can be combined or replaced.

[0058] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. An electrocoating assembly with anti-snagging function, characterized in that, It includes an outer tube and an electric hook. The outer tube has an opening, and the electric hook is disposed inside the outer tube. The electric hook and the outer tube can move relative to each other. The electric hook has an electrode head that extends out of the opening or retracts into the outer tube. A positioning mechanism is provided between the electric hook and the outer tube. When the electrode head is retracted into the outer tube, the positioning mechanism restricts the swaying of the electric hook.

2. The electrocoating assembly with anti-snagging function according to claim 1, characterized in that, The positioning mechanism includes an angle set on the electric hook, the electric hook includes a rod body, the electrode head is set at one end of the rod body, and there is an angle between the rod body and the electrode head.

3. The electrocoating assembly with anti-snagging function according to claim 2, characterized in that, The back of the electric hook is brought together downwards.

4. The electrocoating assembly with anti-snagging function according to claim 1, characterized in that, The electric hook has a curved portion that bends upwards.

5. The electrocoating assembly with anti-snagging function according to claim 1, characterized in that, The outer tube is equipped with a limiting component, and the electric hook is connected to the limiting component and slides relative to the limiting component.

6. The electrocoating assembly with anti-snagging function according to claim 5, characterized in that, The limiting component has a slot, and the electric hook is engaged in the limiting component.

7. The electrocoating assembly with anti-snagging function according to claim 6, characterized in that, The limiting component is ring-shaped and is vertically mounted on the inner wall of the outer tube.

8. The electrocoating assembly with anti-snagging function according to claim 7, characterized in that, The limiting component has a hollowed-out portion, which is connected to the fluid channel inside the outer tube.

9. The electrocoating assembly with anti-snagging function according to claim 1, characterized in that, The outer tube is movable, and the electric hook is fixed.

10. The electrocoating assembly with anti-snagging function according to claim 1, characterized in that, When the electrode head is retracted into the outer tube, the distance between the electrode head and the opening is 7 to 9 millimeters.

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