Electrocoagulation assembly and flushing and sucking electrode device

Abstract

The invention discloses an electrocoagulation assembly and a flushing and sucking electrode device, and the electrocoagulation assembly comprises an outer tube which comprises an electric tube part, the electric tube part is arranged at the end part of the outer tube, the electric tube part is made of a conductive material, and the electric tube part is provided with an opening; the electric hook is arranged in the outer tube, the electric hook and the outer tube can move relatively, the electric hook is provided with an electrode tip, the electrode tip extends out of the opening or retracts into the outer tube, and when the electrode tip retracts into the outer tube, the electric hook is in contact with the electric tube part. When the electric hook retracts, the electric tube part of the outer tube is conducted with the electric hook, current is guided into the electric tube part, the electrocoagulation area is enlarged through the electric tube part, the large-range electrocoagulation operation is more convenient, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an electrocoagulation assembly and a flush and suction electrode device. BACKGROUND

[0002] The flush and suction electrode device is a surgical instrument integrating flushing, suction and radiofrequency energy ablation functions, which generally comprises an electrocoagulation assembly and a control assembly connected with the electrocoagulation assembly. A user can realize rotation, flushing, suction, electrocoagulation and other operations of the electrocoagulation assembly by operating the control assembly. The existing electrocoagulation assembly generally comprises an outer tube and an electric hook, the electric hook is arranged in the outer tube and exposed from the outer tube, the electric hook is connected with a conductive part in the control assembly to guide current into the electric hook, and the electric hook contacts with tissues in surgery to realize electrocoagulation and other operations. However, the existing electrocoagulation assembly can only realize electrocoagulation by electrifying the electric hook, and the range of contact each time is small due to the small size of the electric hook. When a large range of electrocoagulation is required, the electric hook needs to be operated multiple times, which reduces the efficiency of surgery. SUMMARY

[0003] The present application aims to solve the technical problem of limited electrocoagulation range.

[0004] To achieve the purpose of the present application, the following technical solutions are adopted: An electrocoagulation assembly comprises: an outer tube comprising an electric tube part, the electric tube part is arranged at an end of the outer tube, the electric tube part is made of conductive material, and the electric tube part has an opening; an electric hook arranged in the inner tube, the electric hook is movable relative to the outer tube, the electric hook has an electrode head, the electrode head extends out of the opening or is retracted into the outer tube, and when the electrode head is retracted into the outer tube, the electric hook is in contact with the electric tube part.

[0005] In some embodiments, the outer tube comprises a support tube and a fluid channel, one end of the support tube is connected with the electric tube part, the fluid channel extends through the outer tube and is in communication with the opening, the fluid channel extends from the first end of the outer tube to the second end, the electric hook is arranged in the fluid channel, and the electric tube part is arranged at the second end.

[0006] In some embodiments, the support tube is made of insulating material; and / or, the support tube comprises a connecting part and a reinforcing part, one end of the connecting part is connected with the electric tube part, the other end is connected with the reinforcing part, and the material strength of the reinforcing part is greater than that of the connecting part; and / or, the electric tube part is a ring-shaped tube; and / or, the outer tube is provided with an inner tube, the electric hook is arranged in the inner tube, and the end of the electric hook is connected with the conductive tube.

[0007] In some embodiments, an insulating sleeve is arranged on the electric hook, and when the electrode head extends out of the opening, the insulating sleeve is located at the electric tube part to isolate the electric tube part from the electric hook. And / or, the outer tube is movably arranged, and the electric hook is fixedly arranged; And / or, when the electrode head is retracted into the outer tube, the distance between the electrode head and the opening is 7 to 9 mm.

[0008] In some embodiments, the electric hook is inclined toward the inner wall of the electric tube portion.

[0009] In some embodiments, the electric hook includes a rod body, the electrode head is arranged at one end of the rod body, and an angle is formed between the rod body and the electrode head.

[0010] In some embodiments, the electric hook has a bent portion, and the bent portion is bent upward.

[0011] In some embodiments, a limiting member is provided in the outer tube, and the electric hook is connected to the limiting member and slides relative to the limiting member.

[0012] In some embodiments, the limiting member has a slot, and the electric hook is clamped in the limiting member.

[0013] A flushing and suction electrode device comprises an electrocoagulation component connected to a control component.

[0014] The electrocoagulation assembly and the flushing and suction electrode device provided by the present invention have the following advantages: (1) The present invention adopts the relative movement of the electric hook and the outer tube. When the electric hook is retracted, the electric tube part of the outer tube is connected to the electric hook, so that the current is introduced into the electric tube part, and the electrocoagulation area is expanded through the electric tube part, making large-scale electrocoagulation operations more convenient and improving surgical efficiency; (2) The electrode head is tilted toward the inner wall of the electric tube part or a limit piece is set to avoid the electrode head from interfering with the electric tube part when it is retracted, so as to avoid being stuck and unable to retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 Schematic diagram of the electrocoagulation assembly provided in Example 1 of the present invention.

[0017] Figure 2 This is a three-dimensional diagram of an electrode tip extending out of an embodiment of the present invention.

[0018] Figure 3 This invention Figure 1 Enlarged view of part A.

[0019] Figure 4is a perspective view of an electric tube part of an embodiment of the present application.

[0020] Figure 5 is a sectional view of a support tube of an embodiment of the present application.

[0021] Figure 6 is a schematic view of an electric hook provided by an embodiment of the present application.

[0022] Figure 7 is a schematic view of another electric hook provided by an embodiment of the present application.

[0023] Figure 8 is a schematic view of an electric coagulation assembly provided by an embodiment of the present application.

[0024] Figure 9 is a schematic view of a limiting member provided by an embodiment of the present application.

[0025] Figure 10 is a schematic view of a flush suction electrode device provided by an embodiment of the present application.

[0026] Figure 11 is a schematic view of a through hole provided by an embodiment of the present application.

[0027] Figure 12 is a schematic view of a hook-type electrode head provided by an embodiment of the present application.

[0028] Figure 13 is a schematic view of another hook-type electrode head provided by an embodiment of the present application.

[0029] Figure 14 is a schematic view of a shovel-type electrode head provided by an embodiment of the present application.

[0030] Figure 15 is a schematic view of another shovel-type electrode head provided by an embodiment of the present application.

[0031] Figure 16 is a schematic view of a needle-type electrode head provided by an embodiment of the present application.

[0032] In the drawings 100, electric coagulation assembly; 110, outer tube; 111, electric tube part; 112, opening; 113, fluid passage; 114, stepped surface; 115, first end portion; 116, second end portion; 117, support tube; 120, electric hook; 121, electrode head; 122, rod body; 123, back portion; 124, curved portion; 130, insulating sleeve; 140, limiting member; 141, clamping groove; 200, control assembly. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0034] In the embodiments, “several” and “a plurality of” each refer to two or two more. In the description of the present application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, “third” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connection” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] <Embodiment one> As shown in Figures 1 to 5 , the electric coagulation assembly 100 provided by the present embodiment includes an outer tube 110 and an electric hook 120. The outer tube 110 is a circular tube, which includes an electric tube part 111. The electric tube part 111 is arranged at the end of the outer tube 110 and coaxially arranged with the outer tube 110, and can directly contact with the tissue during use. The electric tube part 111 is made of conductive material, so that the energy can be guided to the electric tube part 111. The electric tube part 111 has an opening 112, which is located at one end of the electric tube part 111. The outside of the opening 112 is the outside of the outer tube 110, and the inside of the opening 112 is the inside of the outer tube 110. The electric tube part 111 is an annular tube. The electric hook 120 is arranged inside the outer tube 110, and the electric hook 120 and the outer tube 110 can move relatively, that is, the relative position of the electric hook 120 and the outer tube 110 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 of the electric hook 120 extends out of the opening 112, and at this time the electrode head 121 can be used for coagulation, ablation and other treatments. The electrode head 121 is at the end of the electric hook 120. In addition to the hook type provided by the present embodiment, the electrode head 121 can also use a hook type (such as Figure 12 and Figure 13 ), a shovel type (such asFigure 14 and Figure 15 ), needle type (such as Figure 16 ), etc., according to the specific application scenario. When the electric hook 120 is in the retracted state, the electrode head 121 is retracted into the outer tube 110, and when the electrode head 121 is retracted into the outer tube 110, the electric hook 120 is in contact with the electric tube portion 111, so that the electric hook 120 can conduct energy to the electric tube portion 111, and the electric tube portion 111 can perform coagulation and other treatments. Due to the size of the electric tube portion being larger than the electric hook 120, it has a larger coagulation and ablation treatment area, and can be suitable for treatment of large area tissue. In this embodiment, the relative movement mode of the electric hook 120 and the outer tube 110 adopts the movable setting of the outer tube, and the fixed setting mode of the electric hook, that is, the outer tube 110 is telescopic, and the electric hook 120 is fixed. When the outer tube 110 is telescoped relative to the electric hook 120, the electric hook 120 can be extended or retracted into the outer tube 110. The outer tube 110 is connected with the telescopic push rod 170 of the flush and suction electrode device, and the telescopic push rod 170 is manually pushed and pulled to realize the telescoping of the outer tube 110. 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 mm. If the distance between the electrode head 121 and the opening 112 is too small, the fluid is blocked by the electrode head 121 during flushing, and the bifurcation of the fluid flushed out of the opening 112 affects the flushing effect. If the distance between the electrode head 121 and the opening is too large, due to the fixed total stroke of the telescoping, the distance of the electrode head retraction increases, and the distance of the electrode head extension becomes smaller, which easily causes the user's line of sight to be blocked by the electric tube portion when observing the electrode head during operation, so that the electrode head cannot be seen, affecting the operation. In this embodiment, the distance between the electrode head and the opening is 8 mm, the total stroke of the electrode head relative to the outer tube is 20 mm, and the distance between the electrode head and the opening is 12 mm when the electrode head is extended. In this embodiment, the inner tube 150 is arranged in the outer tube 110, the inner tube 150 is coaxially arranged with the outer tube 110, the electric hook 120 is arranged in the inner tube 150, the end of the electric hook 150 is connected with the conductive tube 160, the current is introduced into the electric hook 150 through the conductive tube, and the end of the conductive tube 160 is connected with the conductive portion. The conductive portion can adopt the existing mechanism, which will not be described here.

[0037] In the above technical solution, the electric tube portion 111 capable of conducting electricity is arranged on the outer tube 110, and the coagulation and ablation treatment is performed by the electric hook 120 or the outer tube 110 according to the relative position change of the electric hook 120 and the outer tube 110, which can be flexibly used according to different surgical conditions, and improves the convenience of operation.

[0038] Further, the outer tube 110 comprises a support tube 117 and a fluid channel 113, one end of the support tube 117 is connected with the electric tube part 111, after the connection, the shape of the outer tube 110 is the same as the shape of the commonly used outer tube 110, which is a circular tube, so that the surface of the outer tube will not form other special-shaped structures, and the surface of the outer tube is smooth and round, avoiding the occurrence of jamming when penetrating into the tissue. In the embodiment, the support tube 117 and the electric tube part 111 are assembled through a stepped surface 114, which is arranged around the axis X of the outer tube 110 and is L-shaped. Specifically, the electric tube part 111 comprises a first tube body 1111 and a second tube body 1112 connected with one end of the first tube body 1111, the diameter of the first tube body 1111 is smaller than that of the second tube body 1112, so that the stepped surface 114 is formed between the first and second tube bodies, and the opening 112 is arranged at the end of the second tube body 1112. The fluid channel 113 penetrates through the outer tube 110 and communicates with the opening 112, and extends from the first end 115 to the second end 116 of the outer tube 110, and the fluid can flow between the first end 115 and the second end 116 through the fluid channel 113. When the flushing and suction electrode device is flushed, the physiological saline and other fluids enter through the first end 115 and flow out through the opening 112 via the fluid channel 113. When the flushing and suction electrode device is suctioned, the external tissue fluid enters the fluid channel 113 through the opening 112 and then flows out through the first end 115. The electric hook 120 is arranged in the fluid channel 113, and the electric tube part 111 is arranged at the second end 116, which does not affect the use of the electric tube part 111 and the electric hook 120 during flushing or suction.

[0039] Specifically, the support tube 117 is made of insulating material, so as to control the electric conduction range of the outer tube 110, so that only part of the support tube 117 is electrically conductive. The insulating material can be existing insulating materials such as plastic. As an improvement, the support tube 117 comprises a connecting part 1171 and a reinforcing part 1172, one end of the connecting part 1171 is connected with the electric tube part 111, and the other end is connected with the reinforcing part 1172, the material strength of the reinforcing part 1172 is greater than that of the connecting part 1171, and the structural strength of the support tube 117 can be improved through the reinforcing part 1172, avoiding that the overall strength is not enough when the length of the support tube 117 is relatively long. The reinforcing part 1172 can be made of metal material, and the connecting part 1171 can be made of plastic. An insulating sleeve 130 is sleeved on the electric hook 120, when the electrode head 121 extends out of the opening 112, the insulating sleeve 130 is located at the electric tube part 111, isolating the electric tube part 111 and the electric hook 120, that is, when the electrode head 121 extends out, the current of the electric hook will not be conducted to the electric tube part 111, at this time, only the electrode head 121 can be used without using the electric tube part 111, avoiding that the electric tube part 111 and the electrode head 121 are electrified at the same time, causing that the electric tube part 111 is mistakenly touched other tissues when the electrode head 121 is used.

[0040] <Embodiment Two> In this embodiment, the same parts as in Embodiment One are given the same reference numerals and the same description is omitted.

[0041] As shown in Figure 6 and Figure 7 , relative to Embodiment One, the coagulation assembly 100 provided in this embodiment also has the following different structural design: In this embodiment, the electric hook 120 is inclined towards the inner wall of the electric tube part 111, so that the electrode head 121 is close to the inner wall of the electric tube part 111, thereby enabling the electrode head 121 to contact the inner wall of the electric tube part when retracted. The electric hook 120 includes a rod body 122, which is parallel to the axis X, and the electrode head 121 is arranged at one end of the rod body 122. The rod body 122 and the electrode head 121 have an included angle a. Through the included angle a, the back of the electrode head 121 can maintain contact with the electric tube part 111 when the electric hook 120 is retracted into the outer tube, thereby ensuring the conduction effect, and also preventing the electrode head 121 from interfering with the electric tube part when retracted. The included angle a in this embodiment is 170°.

[0042] As shown in Figure 7 , as another embodiment, the electric hook 120 has a bending part 124, which is bent upwards (see Figure 7 ). The back part 123 of the electric hook 120 is drawn towards the lower side, so that the inner wall of the electrode head 121 is bent, thereby enabling the back part 123 to be in close contact with the electric tube part when the electrode head 121 is retracted. Since the electrode head 121 is in the form of a hook, the distance between the hook part 1211 of the electrode head 121 and the inner wall can be increased, thereby avoiding the electrode head 121 from being blocked by the electric tube part 111 when retracted relative to the opening.

[0043] <Embodiment Three> In this embodiment, the same parts as in Embodiments One and Two are given the same reference numerals and the same description is omitted.

[0044] As shown in Figure 8 and Figure 9 , relative to Embodiments One and Two, the coagulation assembly 100 provided in this embodiment also has the following different structural design: In this embodiment, the outer tube 110 is provided with a limiting piece 140, the limiting piece 140 is annular, the limiting piece 140 is vertically arranged on the inner wall of the outer tube 110, specifically, on the inner wall of the electric tube part. The electric hook 120 is connected with the limiting piece 140 and slides relative to the limiting piece 140, the movement of the electric hook 120 in the Y direction is limited by the limiting piece 140, without affecting the movement of the electric hook 120 along the X axis direction, so as not to affect the relative expansion and contraction of the electric hook 120 and the outer tube 110, and the electric hook 120 will not shake, avoiding the interference with the electric tube part 111 when retracted, causing the problem of unable to retract. Specifically, the limiting piece 140 has a clamping groove 141, the electric hook 120 is clamped in the limiting piece 141, the clamping groove 141 is arranged in the radial direction of the outer tube, and the limiting piece 140 can be fixed on the inner wall of the outer tube 110 by existing connection methods such as bonding and embedding. The limiting piece 140 has a hollow part 142, the hollow part 142 communicates with the fluid channel 113 in the outer tube, so as to avoid the blockage of the fluid channel 113 caused by the arrangement of the limiting piece.

[0045] <Embodiment four> In this embodiment, the same parts as in embodiments one to three are given the same reference numerals, and the same textual description is omitted.

[0046] As shown in Figure 10 and Figure 11 Compared with embodiments one to three, the present embodiment provides a flushing and suction electrocoagulation assembly, which comprises a control assembly 200 connected with the electrocoagulation assembly 100 for controlling the electrocoagulation assembly 100. The control assembly 200 can adopt an existing control structure to enable the electrocoagulation assembly 100 to conduct electricity, flush, suction and the like.

[0047] Further, the outer tube 110 of the electrocoagulation assembly 100 is provided with a through hole 118 arranged in the radial direction, and a plurality of through holes 118 are arranged around the outer tube 110 to enable the fluid channel 113 to communicate with the external environment. When the fluid channel 113 is filled with fluid or drained, the fluid can also be filled or drained through the through hole 118. The through hole 118 is used for balancing negative pressure. Without the through hole 118, when the electrocoagulation assembly is in a suction state, the tissue is easy to be sucked and stuck at the opening.

[0048] In the above embodiments one to four, during the working process, part of the technical implementation of embodiments one to four can be combined or replaced according to different working environments.

[0049] The technical principles of the present application are described above in combination with the specific embodiments, but it should be noted that the above description is only for explaining the principles of the present application, and cannot be interpreted as a specific limitation on the protection scope of the present application in any way. Based on the explanation here, other specific embodiments or equivalent replacements of the present application can be thought of by those skilled in the art without any creative labor, which will fall within the protection scope of the present application.

Claims

1. An electrocoagulation assembly, characterized in that: include: The outer tube includes an electrical tube portion, which is arranged at the end of the outer tube, is made of a conductive material, and has an opening; The electric hook is arranged inside the outer tube. The electric hook and the outer tube can move relatively. The electric hook has an electrode head. The electrode head extends out of the opening or retracts into the outer tube. When the electrode head retracts into the outer tube, the electric hook contacts the electric tube part.

2. The electrocoagulation assembly according to claim 1, characterized in that The outer tube includes a support tube and a fluid channel. One end of the support tube is connected to the electric tube part. The fluid channel passes through the outer tube and is connected to the opening. It extends from the first end to the second end of the outer tube. The electric hook is arranged in the fluid channel, and the electric tube part is arranged at the second end.

3. The electrocoagulation assembly according to claim 2, characterized in that: The support tube is made of insulating material; And / or, the support tube includes a connecting portion and a reinforcing portion, one end of the connecting portion is connected to the electrical pipe portion, and the other end is connected to the reinforcing portion, and the material strength of the reinforcing portion is greater than the material strength of the connecting portion; And / or, the electrical pipe portion is an annular tube; And / or, an inner tube is provided in the outer tube, the electric hook is passed through the inner tube, and the end of the electric hook is connected to the conductive tube.

4. The electrocoagulation assembly according to claim 1, characterized in that The electric hook is covered with an insulating sleeve. When the electrode head extends out of the opening, the insulating sleeve is located on the electric pipe part, isolating the electric pipe part from the electric hook; And / or, the outer tube is movably arranged, and the electric hook is fixedly arranged; And / or, when the electrode head is retracted into the outer tube, the distance between the electrode head and the opening is 7 to 9 mm.

5. The electrocoagulation assembly according to claim 1, characterized in that The electric hook is inclined toward the inner wall of the electric pipe portion.

6. The electrocoagulation assembly according to claim 5, characterized in that The electric hook comprises a rod body, the electrode head is arranged at one end of the rod body, and an angle is formed between the rod body and the electrode head.

7. The electrocoagulation assembly according to claim 5, characterized in that The electric hook has a bent portion, and the bent portion is bent upward.

8. The electrocoagulation assembly according to claim 1, characterized in that A limiting piece is provided in the outer tube, and the electric hook is connected to the limiting piece and slides relative to the limiting piece.

9. The electrocoagulation assembly according to claim 8, characterized in that The limiting member has a slot, and the electric hook is locked in the limiting member.

10. A flushing and suction electrode device, characterized in that: The invention comprises the electrocoagulation component according to any one of claims 1 to 9, wherein the electrocoagulation component is connected to a control component.

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