Conductive mechanism for bipolar high-frequency electrotome and multi-degree-of-freedom bipolar high-frequency electrotome

Abstract

In the conductive mechanism, a first spiral piece and a second spiral piece which are separated from each other form a connecting pipe, so that the connecting pipe has flexibility and is easy to bend, and the degree of freedom of an execution end of the bipolar high-frequency electrotome is improved; the inner pipe, the outer pipe, the connecting pipe, the first C-shaped half pipe and the second C-shaped half pipe are all coated with insulating coatings, the first spiral piece and the second spiral piece are arranged in a separated mode, the first C-shaped half pipe and the second C-shaped half pipe are arranged in a separated mode, and short circuit of the two electrodes is avoided. After the first C-shaped half tube and the second C-shaped half tube are respectively connected with a power supply, high-frequency electric energy is provided for organism tissues through the first electrode and the second electrode, and high-frequency current enables blood vessels or tissues between the first electrode and the second electrode to be dehydrated and solidified, so that the aim of stopping bleeding is fulfilled. And a basis is provided for improving the degree of freedom of the bipolar high-frequency electrotome execution end.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit and a multi-degree-of-freedom bipolar high-frequency electrosurgical unit. Background Technology

[0002] A high-frequency electrosurgical unit (HFOS) is an electrosurgical instrument that replaces mechanical scalpels for tissue cutting. It heats the tissue by delivering a high-frequency, high-voltage current generated at the effective electrode tip, achieving tissue separation and coagulation, thus achieving cutting and hemostasis. A bipolar HFOS delivers high-frequency electrical energy to the tissue through two electrode tips. The high-frequency current causes dehydration and coagulation of the blood vessels or tissue between the two electrode tips, achieving hemostasis, ablation, and dissection. Compared to a monopolar HFOS, the high-frequency current flows only between the two electrodes, making it safer, but its application is somewhat limited.

[0003] See Chinese utility model patent CN221285890U, filed on September 22, 2023, published on July 9, 2024. Currently, the execution end of bipolar high-frequency electrosurgical units used in surgery is usually fixed. When doctors use rigid bipolar high-frequency electrosurgical units to perform surgical operations in the abdominal or intestinal cavity, they need to move the high-frequency electrosurgical unit externally to achieve operations such as traction, cutting, and coagulation of human tissue. This type of bipolar high-frequency electrosurgical unit lacks flexibility, and the operable range of the high-frequency electrosurgical unit is limited, resulting in excessive traction on human tissue during surgery and easily causing significant collateral damage.

[0004] Therefore, there is an urgent need for an improved bipolar high-frequency electrosurgical unit to increase its degrees of freedom. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the first objective of this utility model is to provide a conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit, providing a basis for improving the degree of freedom of the execution end of the bipolar high-frequency electrosurgical unit.

[0007] The second objective of this invention is to propose a multi-degree-of-freedom bipolar high-frequency electrosurgical unit, which improves the degree of freedom of the execution end of the bipolar high-frequency electrosurgical unit.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] In a first aspect, this utility model provides a conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit, comprising an insulating film, a transition tube, an adapter tube, a first T-shaped component, a second T-shaped component, a first electrode, a second electrode, and a conductive component;

[0011] The conductive component includes an inner tube, an outer tube, a connecting tube, a first C-shaped half-tube, and a second C-shaped half-tube, all coated with an insulating coating. The outer tube is fitted onto the inner tube. The connecting tube has two parallel spiral grooves that circumferentially surround the tubular conductive component. Both spiral grooves penetrate the connecting tube in the near and far directions, dividing the connecting tube into a first spiral component and a second spiral component that are separate from each other. The first and second C-shaped half-tubes are arranged opposite each other to form a tubular shape. The first side of the first C-shaped half-tube and the first side of the second C-shaped half-tube abut against the two corners of the first T-shaped component, and the second side of the first C-shaped half-tube and the second side of the second C-shaped half-tube abut against the two corners of the second T-shaped component, respectively. The proximal end of the first spiral component is fixedly connected to the distal end of the first C-shaped half-tube, the distal end of the first spiral component is fixedly connected to the proximal end of the inner tube, the proximal end of the second spiral component is fixedly connected to the distal end of the second C-shaped half-tube, and the distal end of the second spiral component is fixedly connected to the proximal end of the outer tube. The first electrode is connected to the inner tube, and the second electrode is connected to the outer tube.

[0012] The proximal ends of the first C-shaped half-tube and the second C-shaped half-tube are inserted into the transition tube, which is connected to the adapter tube. An insulating film seals the distal end of the transition tube, the first C-shaped half-tube, the second C-shaped half-tube, the connecting tube, and the proximal end of the outer tube.

[0013] Optionally, the conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit further includes a first insulating tube, a first electrode tube, and a second electrode tube. The first electrode tube includes a first tube segment and a second tube segment connected sequentially from near to far. The diameter of the first tube segment is smaller than the diameter of the second tube segment. The second electrode tube and the first insulating tube, arranged sequentially from near to far, are both sleeved on the first tube segment. The first tube segment is connected to the inner tube, and the second electrode tube is connected to the outer tube.

[0014] Optionally, in the conductive mechanism of a multi-degree-of-freedom bipolar high-frequency electrosurgical unit, the first electrode is a first clamp, the second electrode is a second clamp, and the first clamp and the second clamp can engage and disengage with each other.

[0015] Optionally, an electrode needle is formed at the distal end of the second tube segment, and the electrode needle has a through hole communicating with the interior of the first electrode tube.

[0016] Optionally, the conductive component further includes a first connector and a second connector partially inserted into the adapter tube. The first end of the first connector is located inside the adapter tube, and the second end of the first connector is located outside the adapter tube. The first end of the second connector is located inside the adapter tube, and the second end of the second connector is located outside the adapter tube. Both the portion of the first connector inserted into the adapter tube and the portion of the second connector inserted into the adapter tube are coated with an insulating coating. The first end of the first connector is fixedly connected to the proximal end of the first C-shaped half tube, and the first end of the second connector is fixedly connected to the proximal end of the second C-shaped half tube.

[0017] Optionally, the proximal ends of the first C-shaped half-tube and the second C-shaped half-tube are both fixedly connected to the transition tube, and the transition tube is rotatably connected to the adapter tube.

[0018] Secondly, this utility model provides a multi-degree-of-freedom bipolar high-frequency electric knife, including the conductive mechanism as described above, and also including a first pull rope, a second pull rope, a dial wheel, a rope winding wheel group, a handle housing, a mounting sleeve, and a swing sleeve;

[0019] The proximal end of the mounting sleeve is mounted on the handle housing. The swing sleeve includes a connecting part and a conductive support part connected sequentially from proximal to distal. The connecting part is rotatably connected to the distal end of the mounting sleeve to form a swing shaft. The swing sleeve swings radially around the swing shaft. The conductive element is inserted into and supported in the mounting sleeve and the swing sleeve. The first electrode and the second electrode extend out of the swing sleeve. The connecting tube is set at the rotatable connection position between the swing sleeve and the mounting sleeve. The connecting tube is located inside the handle housing.

[0020] The dial is rotatably mounted on the handle housing, with at least a portion of the dial extending out of the handle housing. The rope winding wheel assembly is installed inside the handle housing, and the dial is connected to the rope winding wheel assembly via a transmission connection. The first end of the first pull rope and the first end of the second pull rope are both connected to the conductive component support and located on opposite sides of the conductive component. The second end of the first pull rope and the second end of the second pull rope are both wound around the rope winding wheel assembly. The dial drives the rope winding wheel assembly to release the second pull rope forward while simultaneously tightening the first pull rope backward, causing the swing sleeve and electrode to swing in the first direction. The dial drives the rope winding wheel assembly to release the first pull rope forward while simultaneously tightening the second pull rope backward, causing the swing sleeve and electrode to swing in the second direction.

[0021] Optionally, an assembly gap is formed between the conductive component and the mounting sleeve. The first pull rope and the second pull rope are both accommodated in the assembly gap. The first end of the first pull rope and the first end of the second pull rope both extend forward out of the assembly gap and connect with the support of the conductive component. The second end of the first pull rope and the second end of the second pull rope both pass through the mounting sleeve in the handle housing and are wound on the rope winding wheel assembly.

[0022] Optionally, the multi-degree-of-freedom bipolar high-frequency electrosurgical unit also includes a water pump, which is located inside the handle housing and has its outlet connected to the adapter pipe.

[0023] Optionally, the rope winding wheel assembly includes a drive wheel, a first rope winding wheel, and a second rope winding wheel installed in the handle housing; the first rope winding wheel and the first end of the first pull rope are located on the same side of the conductive element, the first end of the second rope winding wheel and the first end of the second pull rope are located on the same side of the conductive element, the drive wheel is located between the first rope winding wheel and the second rope winding wheel, the first rope winding wheel and the second rope winding wheel are respectively drivenly connected to the drive wheel, the dial wheel is drivenly connected to the drive wheel, the second end of the first pull rope is wound around the first rope winding wheel, and the second end of the second pull rope is wound around the second rope winding wheel.

[0024] Optionally, the handle housing includes a fixed housing and a lever housing arranged sequentially from near to far. The lever housing is rotatably connected to the far end of the fixed housing. The near end of the mounting sleeve passes through the lever housing and is mounted on the fixed housing. The lever wheel is rotatably mounted on the fixed housing. The rope wheel assembly is mounted inside the fixed housing. The rotation shaft of the lever housing and the mounting sleeve are coaxially arranged. The lever housing and the mounting sleeve are linked to rotate around the rotation shaft of the lever housing. The mounting sleeve and the conductive component are linked to rotate around the rotation shaft of the lever housing.

[0025] (III) Beneficial Effects

[0026] The beneficial effects of this utility model are:

[0027] In the conductive mechanism provided by this utility model, the first and second helical components, which are separated from each other, form a connecting tube, making the connecting tube flexible and easy to bend, which is beneficial to improving the degree of freedom of the bipolar high-frequency electrosurgical actuator. The inner tube, outer tube, connecting tube, first C-shaped half-tube, and second C-shaped half-tube are all coated with an insulating coating. The first and second helical components are separately arranged, as are the first and second C-shaped half-tubes, to avoid short circuits between the two electrodes. The first and second C-shaped half-tubes are connected by a T-shaped component, forming a stable tubular structure. The proximal ends of the first and second C-shaped half-tubes are inserted into a transition tube, which is connected to a transfer tube. An insulating film seals the distal end of the transition tube, the first C-shaped half-tube, the second C-shaped half-tube, the connecting tube, and the proximal end of the second electrode tube. When water is introduced into the transfer tube, it flows sequentially through the first C-shaped half-tube, the second C-shaped half-tube, the connecting tube, the inner tube, and the outer tube, cooling the electrodes. After the first C-shaped half tube and the second C-shaped half tube are connected to the power source respectively, high-frequency electrical energy is provided to the body tissue through the first electrode and the second electrode. The high-frequency current will cause the blood vessels or tissue between the first electrode and the second electrode to dehydrate and coagulate, thereby achieving the purpose of hemostasis.

[0028] The bipolar high-frequency electrosurgical unit provided by this utility model allows the user to perform surgical operations in the abdominal or intestinal cavity by simply moving a dial outside the body. This enables the entire swinging cannula, first electrode, and second electrode located inside the body to swing, thereby performing operations such as traction, cutting, and coagulation on human tissue. This improves the flexibility and operability of the high-frequency electrosurgical unit, reduces the frequency of external movement of the unit, and thus reduces the traction of the electrosurgical unit on human tissue during surgery, thereby reducing the occurrence of collateral damage. Attached Figure Description

[0029] Figure 1 This is a cross-sectional schematic diagram of the bipolar high-frequency electrosurgical unit according to Embodiment 1 in the first direction;

[0030] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0032] Figure 4 This is a cross-sectional schematic diagram of the bipolar high-frequency electrosurgical unit according to Embodiment 1 in the second direction;

[0033] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0034] Figure 6 for Figure 4 Enlarged view of point D in the middle;

[0035] Figure 7 for Figure 4 Enlarged view of point E in the middle;

[0036] Figure 8 This is a schematic diagram of the mating structure of the first C-shaped half-tube, the second C-shaped half-tube, the first T-shaped member, and the second T-shaped member according to Embodiment 1.

[0037] Figure 9 This is a schematic diagram of the mating structure of the first clamp and the second clamp according to Embodiment 2.

[0038] Explanation of reference numerals in the attached figures

[0039] 11: First pull rope; 12: Second pull rope;

[0040] 2: Dial;

[0041] 3: Install the sleeve;

[0042] 31: First ear; 32: First sub-shaft; 34: First through hole; 35: First clamp seat; 36: Second clamp seat;

[0043] 42: Conductive component support; 43: Third ear; 44: First mounting through hole; 45: Second mounting through hole;

[0044] 51: Insulating tube; 52: Insulating film; 53: Transition tube; 54: Adapter tube; 55: First T-shaped piece; 56: Second T-shaped piece;

[0045] 61: First electrode tube; 62: Second electrode tube; 63: First C-shaped half tube; 64: Second C-shaped half tube; 65: First spiral component; 66: Second spiral component; 68: First connector; 69: Second connector;

[0046] 71: Drive pulley; 72: First winding pulley; 73: Second winding pulley; 74: First transition pulley; 75: Second transition pulley;

[0047] 81: Fixed housing; 82: Moving housing; 83: Pin;

[0048] 91: Water pump; 92: Infusion port. Detailed Implementation

[0049] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, "near" refers to the side closer to the operator, and "far" refers to the side closer to the patient. The directional terms "upper," "lower," "front," "back," "left," and "right" used in this document are... Figure 1 The orientation is taken as a reference, where the direction from back to front is also the direction from near to far.

[0050] Example 1

[0051] like Figures 1 to 8 As shown, this embodiment provides a bipolar high-frequency electrosurgical unit. The bipolar high-frequency electrosurgical unit includes a conductive mechanism, a first pull cord 11, a second pull cord 12, a dial wheel 2, a cord winding wheel assembly, a handle housing, a mounting sleeve 3, and a swing sleeve.

[0052] The conductive mechanism includes an insulating tube 51, an insulating film 52, a transition tube 53, a transfer tube 54, a first T-shaped member 55, a second T-shaped member 56, and a conductive member. The conductive component includes a first electrode tube 61, a second electrode tube 62, a connecting tube, a first C-shaped half-tube 63, and a second C-shaped half-tube 64, all coated with an insulating coating. The first electrode tube 61 includes a first tube segment and a second tube segment connected sequentially from near to far, with the diameter of the first tube segment being smaller than the diameter of the second tube segment. The second electrode tube 62 and the first insulating tube 51, arranged sequentially from near to far, are both sleeved on the first tube segment. The connecting tube has two parallel spiral grooves that surround the axial direction of the tubular conductive component. The two spiral grooves penetrate the connecting tube in both near and far directions, dividing the connecting tube into a first spiral component 65 and a second spiral component 66 that are separated from each other. The first C-shaped half-tube 63 has a first side and a second side extending in the C-shaped direction. The second C-shaped half-tube 64 also has a first side and a second side extending in the C-shaped direction. The recesses of the first C-shaped half-tube 63 and the second C-shaped half-tube 64 are arranged opposite to each other. The first side of the first C-shaped half-tube 64 abuts against the first corner of the first T-shaped member 55, the second side of the first C-shaped half-tube 63 abuts against the first corner of the second T-shaped member 56, the second side of the second C-shaped half-tube 64 abuts against the second corner of the second T-shaped member 56, the proximal end of the first spiral member 65 is fixedly connected to the distal end of the first C-shaped half-tube 63, and the distal end of the first spiral member 65 is fixed to the proximal end of the first electrode tube 61. The proximal end of the second spiral member 66 is fixedly connected to the distal end of the second C-shaped half tube 64, and the distal end of the second spiral member 66 is fixedly connected to the proximal end of the second electrode tube 62; the proximal ends of the first C-shaped half tube 63 and the second C-shaped half tube 64 are inserted into the transition tube 53, the transition tube 53 is connected to the adapter tube 54, and the insulating film 52 seals and covers the distal end of the transition tube 53, the first C-shaped half tube 63, the second C-shaped half tube 64, the connecting tube, and the proximal end of the second electrode tube 62.

[0053] In this conductive mechanism, the first spiral member 65 and the second spiral member 66, which are separated from each other, form a connecting tube. This makes the connecting tube flexible and easy to bend, which helps to improve the degree of freedom of the bipolar high-frequency electrosurgical actuator. The first electrode tube 61, the second electrode tube 62, the connecting tube, the first C-shaped half tube 63, and the second C-shaped half tube 64 are all coated with an insulating coating. Furthermore, the first spiral member 65 and the second spiral member 66 are separated, and the first C-shaped half tube 63 and the second C-shaped half tube 64 are also separated to avoid short circuits between the two electrodes. The first C-shaped half-tube 63 and the second C-shaped half-tube 64 are connected by a T-shaped fitting to form a stable tubular structure. The proximal ends of the first C-shaped half-tube 63 and the second C-shaped half-tube 64 are inserted into the transition tube 53, which is connected to the adapter tube 54. An insulating film 52 seals the distal end of the transition tube 53, the first C-shaped half-tube 63, the second C-shaped half-tube 64, the connecting tube, and the proximal end of the second electrode tube 62. When water is introduced into the adapter tube 54, it flows sequentially through the first C-shaped half-tube 63, the second C-shaped half-tube 64, the connecting tube, the second electrode tube 62, and the first electrode tube 61, cooling the electrodes. After the first C-shaped half-tube 63 and the second C-shaped half-tube 64 are connected to a power source, high-frequency electrical energy is supplied to the tissue through the first electrode tube 61 and the second electrode tube 62. This high-frequency current causes dehydration and coagulation of the blood vessels or tissue between the first electrode tube 61 and the second electrode tube 62, thereby achieving hemostasis.

[0054] The proximal end of the mounting sleeve 3 is mounted on the handle housing. The swing sleeve includes a connecting part and a conductive support part 42 connected sequentially from proximal to distal. The connecting part is rotatably connected to the distal end of the mounting sleeve 3 to form a swing shaft. The swing sleeve swings radially around the swing shaft in the mounting sleeve 3. The conductive element is inserted and supported in the mounting sleeve 3 and the swing sleeve. The distal end of the second electrode tube 62 extends out of the swing sleeve. The connecting tube is set at the rotational connection position between the swing sleeve and the mounting sleeve 3. The adapter tube 54 is located inside the handle housing. The dial 2 is rotatably mounted on the handle housing, with at least a portion of the dial 2 extending out of the handle housing. The rope winding wheel assembly is installed inside the handle housing, and the dial 2 is connected to the rope winding wheel assembly in a transmission connection. The first end of the first pull rope 11 and the first end of the second pull rope 12 are both connected to the conductive element support part 42 and located on opposite sides of the conductive element. The second end of the first pull rope 11 and the second end of the second pull rope 12 are both wound around the rope winding wheel assembly. The dial 2 drives the rope winding wheel assembly to release the second pull rope 12 forward while tightening the first pull rope 11 backward, causing the swing sleeve and the electrode to swing in the first direction. The dial 2 drives the rope winding wheel assembly to release the first pull rope 11 forward while tightening the second pull rope 12 backward, causing the swing sleeve and the electrode to swing in the second direction.

[0055] With this bipolar high-frequency electrosurgical unit, when the user performs surgery in the abdominal or intestinal cavity, the user only needs to turn the dial 2 externally to make the swinging cannula, the first electrode tube 61 and the second electrode tube 62 located inside the body swing together to perform operations such as traction, cutting and coagulation on human tissue. This improves the flexibility and operability of the high-frequency electrosurgical unit, reduces the frequency of the user moving the high-frequency electrosurgical unit externally, and thus reduces the traction of human tissue by the electrosurgical unit during the operation, thereby reducing the occurrence of collateral damage.

[0056] Preferably, an electrode needle is formed at the distal end of the second tube segment, and the electrode needle has a through hole communicating with the interior of the first electrode tube 61. This makes it easy for the electrode tip to puncture tissue for ablation and coagulation.

[0057] Preferably, the conductive component further includes a first connector 68 and a second connector 69 partially inserted into the adapter tube 54. The first end of the first connector 68 is located inside the adapter tube 54, and the second end of the first connector 68 is located outside the adapter tube 54. The first end of the second connector 69 is located inside the adapter tube 54, and the second end of the second connector 69 is located outside the adapter tube 54. Both the portions of the first connector 68 and the second connector 69 inserted into the adapter tube 54 are coated with an insulating coating. The first end of the first connector 68 is fixedly connected to the proximal end of the first C-shaped half-tube 63, and the first end of the second connector 69 is fixedly connected to the proximal end of the second C-shaped half-tube 64. Thus, the second ends of the first connector 68 and the second ends of the second connector 69 located outside the adapter tube 54 are easily connected to a power source.

[0058] Furthermore, in this embodiment, both the first connector 68 and the second connector 69 are strip-shaped pieces extending in the proximal direction, and the second end of the first connector 68 and the second end of the second connector 69 are both located near the adapter pipe 54.

[0059] Preferably, the distal end of the mounting sleeve 3 is provided with a first ear 31 and a second ear extending in the proximal direction, the first ear 31 and the second ear being arranged opposite to each other. The connecting part of the swing sleeve is a third ear 43 and a fourth ear extending in the proximal direction, provided at the proximal end of the conductive support part 42, the third ear 43 and the fourth ear being arranged opposite to each other. The first ear 31 and the third ear 43 are rotatably connected to form a swing shaft, and the second ear and the fourth ear are rotatably connected to form a swing shaft. The first pull rope 11 and the second pull rope 12 are both located between the first ear 31 and the second ear, and the first pull rope 11 and the second pull rope 12 are both located between the third ear 43 and the fourth ear. In this way, it is convenient for the pull rope to pull the swing sleeve to swing.

[0060] Specifically, in this embodiment, the first ear portion 31 is located outside the third ear portion 43, and the second ear portion is located outside the fourth ear portion. Optionally, the first ear portion 31 is located inside the third ear portion 43, and the second ear portion is located inside the fourth ear portion.

[0061] In this embodiment, a first sub-rotating shaft 32 is provided on the first ear 31, a second sub-rotating shaft is provided on the second ear, a first mounting hole is provided on the third ear 43, and a second mounting hole is provided on the fourth ear; the first sub-rotating shaft 32 is rotatably inserted into the first mounting hole, and the second sub-rotating shaft is rotatably inserted into the second mounting hole, both the first sub-rotating shaft 32 and the second sub-rotating shaft are located on the swing shaft. Thus, the structure of the swing sleeve and the mounting sleeve 3 being rotatably connected is simple. Optionally, a first sub-rotating shaft 32 is provided on the third ear 43, a second sub-rotating shaft is provided on the fourth ear, a first mounting hole is provided on the first ear 31, and a second mounting hole is provided on the second ear; the first sub-rotating shaft 32 is rotatably inserted into the first mounting hole, and the second sub-rotating shaft is rotatably inserted into the second mounting hole, both the first sub-rotating shaft 32 and the second sub-rotating shaft are located on the swing shaft.

[0062] To ensure stable installation of the conductive component, it is stably supported within the mounting sleeve 3. An assembly gap is formed between the conductive component and the mounting sleeve 3. Both the first pull rope 11 and the second pull rope 12 are accommodated within this gap. The first end of the first pull rope 11 extends forward through the assembly gap and connects to the conductive component support 42. The first end of the second pull rope 12 also extends forward through the assembly gap and connects to the conductive component support 42. The second end of the first pull rope 11 passes through the mounting sleeve 3 within the handle housing and is wound around the rope winding wheel assembly. Similarly, the second end of the second pull rope 12 passes through the mounting sleeve 3 within the handle housing and is wound around the rope winding wheel assembly. Thus, by utilizing the gap between the conductive component and the mounting sleeve 3 to accommodate the first pull rope 11 and the second pull rope 12, the structure becomes more compact.

[0063] Specifically, in this embodiment, the conductive support portion 42 is provided with a first mounting through hole 44 and a second mounting through hole 45 extending in the near-far direction. The first mounting through hole 44 and the second mounting through hole 45 are respectively located on both sides of the first electrode tube 61. The first mounting through hole 44 has a first through hole 34 portion and a second through hole portion that are connected sequentially from near to far and are coaxially arranged. The diameter of the first through hole 34 portion is smaller than the diameter of the second through hole portion. The first end of the first pull rope 11 has a first stop member, which is accommodated in the second through hole portion. The radial dimension of the second through hole is larger than the diameter of the first through hole 34. The first pull rope 11 passes through the second through hole and extends into the assembly gap. The second mounting through hole 45 has a third through hole and a fourth through hole that are connected sequentially from near to far and are coaxially arranged. The diameter of the third through hole is smaller than the diameter of the fourth through hole. The first end of the second pull rope 12 has a second stop, which is accommodated in the fourth through hole. The radial dimension of the second stop in the fourth through hole is larger than the diameter of the third through hole. The second pull rope 12 passes through the second through hole and extends into the assembly gap. Thus, since the radial dimension of the first stop member in the second through hole is larger than the diameter of the first through hole 34, when the rope wheel assembly releases the second pull rope 12 forward and tightens the first pull rope 11 backward, the first stop member abuts against the distal end of the first through hole 34, which can pull the swing sleeve to swing in the first direction; since the radial dimension of the second stop member in the fourth through hole is larger than the diameter of the third through hole, when the rope wheel assembly releases the first pull rope 11 forward and tightens the second pull rope 12 backward, the second stop member abuts against the distal end of the third through hole, which can pull the swing sleeve to swing in the second direction; and it facilitates the assembly of the first pull rope 11 and the second pull rope 12 on the conductive component support 42. Optionally, the first end of the first pull rope 11 is fixedly connected to the conductive component support 42, and the first end of the second pull rope 12 is fixedly connected to the conductive component support 42.

[0064] Furthermore, in this embodiment, the conductive component support portion 42 is limited to the outer peripheral wall of the distal end of the conductive component, restricting the conductive component from moving in the up-down and left-right directions; the proximal end of the mounting sleeve 3 is limited to the outer peripheral wall of the insulating tube 51, restricting the conductive component from moving in the up-down and left-right directions. This support and limiting connection of the conductive component achieves stable support within the mounting sleeve 3. Simultaneously, the limiting connection between the conductive component support portion 42 and the conductive component allows the conductive component support portion 42 to drive the distal end of the conductive component to swing together.

[0065] Furthermore, in this embodiment, both the mounting sleeve 3 and the swing sleeve are made of insulating material to prevent the conductive components from leaking electricity to the outside at undesirable locations. Furthermore, in this embodiment, the first electrode tube 61, the second electrode tube 62, the connecting tube, the first C-shaped half tube 63, the second C-shaped half tube 64, the first connector 68, and the second connector 69 are all made of metal.

[0066] Specifically, in this embodiment, the connecting tube is set at least corresponding to the position of the first ear 31 and the position of the third ear 43; or the connecting tube is set at least corresponding to the position of the second ear and the fourth ear.

[0067] In this embodiment, the rope winding wheel assembly includes a drive wheel 71, a first rope winding wheel 72, and a second rope winding wheel 73 installed in the handle housing. The first rope winding wheel 72 is located on the first side of the conductive element, and the second rope winding wheel 73 is located on the second side of the conductive element. The drive wheel 71 is located between the first rope winding wheel 72 and the second rope winding wheel 73. The first rope winding wheel 72 and the second rope winding wheel 73 are respectively drivenly connected to the drive wheel 71. The dial wheel 2 is drivenly connected to the drive wheel 71. The second end of the first pull rope 11 is wound around the first rope winding wheel 72, and the second end of the second pull rope 12 is wound around the second rope winding wheel 73.

[0068] Preferably, the drive wheel 71 is located below the conductive element, and the dial wheel 2 is located below the drive wheel 71, with the shaft of the dial wheel 2 fixedly connected to the shaft of the drive wheel 71. This results in a simple structure.

[0069] Preferably, the rope winding wheel assembly further includes a first transition wheel 74 and a second transition wheel 75. The first transition wheel 74 is rotatably mounted inside the handle housing and located on the first side of the conductive element, and the second transition wheel 75 is rotatably mounted inside the handle housing and located on the second side of the conductive element. The second end of the first pull rope 11 is wound sequentially around the first transition wheel 74 and the first winding wheel 72, and the second end of the second pull rope 12 is wound sequentially around the second transition wheel 75 and the second winding wheel 73.

[0070] Specifically, in this embodiment, the first side of the conductive element is the left side of the conductive element, and the second side of the conductive element is the right side of the conductive element; the first winding wheel 72, the second winding wheel 73, the first transition wheel 74 and the second transition wheel 75 are all placed horizontally, the first transition wheel 74 is located near the first winding wheel 72, and the second transition wheel 75 is located near the second winding wheel 73.

[0071] Preferably, in this embodiment, both the dial 2 and the rope winding assembly are located at the front end of the handle housing, and the adapter tube 54 is located at the rear side of the rope winding assembly, with the conductive component connected to the adapter tube 54. This results in a more compact structure.

[0072] The handle housing includes a fixed housing 81 and an actuating housing 82 arranged sequentially from near to far. The actuating housing 82 is rotatably connected to the distal end of the fixed housing 81. The proximal end of the mounting sleeve 3 passes through the actuating housing 82 and is mounted on the fixed housing 81. The dial 2 is rotatably mounted on the fixed housing 81, and the rope winding wheel assembly is mounted inside the fixed housing 81. The actuating housing 82 and the mounting sleeve 3 are coaxially arranged, and the actuating housing 82 and the mounting sleeve 3 are linked to rotate around the rotation axis of the actuating housing 82. The mounting sleeve 3 and the conductive component are also linked to rotate around the rotation axis of the actuating housing 82. Thus, when the actuating housing 82 rotates, it can drive the mounting sleeve 3 and the conductive component to rotate as a whole around the rotation axis of the actuating housing 82, further improving the flexibility of the high-frequency electrosurgical unit and increasing its operating range.

[0073] Preferably, the mounting sleeve 3 has a pin hole, and the transition tube 53 has a pin groove corresponding to the pin hole. The pin 83 on the actuating housing 82 passes through the pin hole and is inserted into the pin groove. In this way, the actuating housing 82 and the mounting sleeve 3 are linked to rotate around the rotation axis of the actuating housing 82, and the mounting sleeve 3 and the conductive component are linked to rotate around the rotation axis of the actuating housing 82.

[0074] Preferably, the near-end wall of the mounting sleeve 3 has a first through hole 34 and a second through hole. The second end of the first pull rope 11 passes through the first through hole 34 and is wound around the rope winding wheel assembly, and the second end of the second pull rope 12 passes through the second through hole and is wound around the rope winding wheel assembly. Both the first through hole 34 and the second through hole are strip-shaped holes extending circumferentially along the mounting sleeve 3. Further, the length of the first through hole 34 in the circumferential direction of the mounting sleeve 3 is 1 / 5 to 1 / 3 of the circumference of the mounting sleeve 3, and the length of the second through hole in the circumferential direction of the mounting sleeve 3 is 1 / 5 to 1 / 3 of the circumference of the mounting sleeve 3. In this way, when the housing 82 is turned to rotate the mounting sleeve 3, the first through hole 34 can avoid the first pull rope 11, and the second through hole can avoid the second pull rope 12.

[0075] The handle also includes a water pump 91, which is installed inside a fixed housing 81. The fixed housing 81 has an inlet 92 for communication with a liquid storage device. The inlet 92 is connected to the inlet of the water pump 91, and the adapter pipe 54 is connected to the outlet of the water pump 91. Thus, by housing the water pump 91 within the fixed housing 81, the water pump 91 is less prone to damage, improving the portability of the high-frequency electrosurgical unit. Furthermore, the number of external devices required to work with the high-frequency electrosurgical unit is reduced, thereby minimizing the space occupied by external devices.

[0076] The fixed housing 81 includes a longitudinal housing portion and a transverse housing portion connected sequentially from bottom to top. A longitudinal cavity is formed in the longitudinal housing portion, and a transverse cavity is formed in the transverse housing portion that communicates with the longitudinal cavity. The water pump 91 is accommodated in the longitudinal cavity and fixedly connected to the longitudinal housing portion. The proximal end of the mounting sleeve 3 is inserted into the transverse cavity and connected to the transverse housing portion. The adapter pipe 54 is installed in the transverse cavity.

[0077] More preferably, the longitudinal shell portion and the transverse shell portion are connected to form a T-shape, and the included angle between the longitudinal shell portion and the transverse shell portion is 90° to 130°. This handle shell design is ergonomic, making the user's grip on the handle more comfortable and convenient to operate.

[0078] Furthermore, in this embodiment, the rope-winding wheel assembly is installed in the transverse cavity and located on the front side of the longitudinal shell, and the dial wheel 2 is installed on the front side of the longitudinal shell, with at least a portion of the dial wheel 2 extending forward out of the longitudinal shell. This results in a compact structure and facilitates user operation of the dial wheel 2.

[0079] Example 2

[0080] The main difference between this embodiment and Embodiment 1 is:

[0081] like Figure 9 As shown, the first electrode is a first clamp 35, and the second electrode is a second clamp 36. The first clamp 35 and the second clamp 36 can engage and disengage with each other. The distal end of the first spiral member is fixedly connected to the proximal end of the inner tube, and the distal end of the second spiral member is fixedly connected to the proximal end of the outer tube. The outer tube is sleeved on the inner tube. The proximal end of the first clamp 35 is connected to the inner tube, and the proximal end of the second clamp 36 is connected to the outer tube.

[0082] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0083] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0084] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0085] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit, characterized in that, Includes an insulating film (52), a transition tube (53), a transfer tube (54), a first T-shaped member (55), a second T-shaped member (56), a first electrode, a second electrode, and a conductive member; The conductive component includes an inner tube, an outer tube, a connecting tube, a first C-shaped half-tube (63), and a second C-shaped half-tube (64), all coated with an insulating coating. The outer tube is fitted onto the inner tube. The connecting tube has two parallel spiral grooves that surround the axial direction of the tubular conductive component. The two spiral grooves penetrate the connecting tube in both the near and far directions, dividing the connecting tube into a first spiral component (65) and a second spiral component (66) that are separated from each other. The first C-shaped half-tube (63) and the second C-shaped half-tube (64) are arranged opposite each other to form a tubular shape. The first side portion of the first C-shaped half-tube (63) and the first side portion of the second C-shaped half-tube (64) are arranged opposite each other. The first T-shaped member (55) abuts against the two corners of the first C-shaped half tube (63) and the second C-shaped half tube (64) respectively abut against the two corners of the second T-shaped member (56); the proximal end of the first spiral member (65) is fixedly connected to the distal end of the first C-shaped half tube (63), the distal end of the first spiral member (65) is fixedly connected to the proximal end of the inner tube, the proximal end of the second spiral member (66) is fixedly connected to the distal end of the second C-shaped half tube (64), and the distal end of the second spiral member (66) is fixedly connected to the proximal end of the outer tube; the first electrode is connected to the inner tube, and the second electrode is connected to the outer tube; The proximal ends of the first C-shaped half tube (63) and the second C-shaped half tube (64) are inserted into the transition tube (53). The transition tube (53) is connected to the adapter tube (54). The insulating film (52) seals and covers the distal end of the transition tube (53), the first C-shaped half tube (63), the second C-shaped half tube (64), the connecting tube, and the proximal end of the outer tube.

2. The conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 1, characterized in that, It also includes a first insulating tube (51), a first electrode tube (61) as the first electrode, and a second electrode tube (62) as the second electrode; The first electrode tube (61) includes a first tube segment and a second tube segment connected sequentially from near to far. The diameter of the first tube segment is smaller than the diameter of the second tube segment. The second electrode tube (62) and the first insulating tube (51) arranged sequentially from near to far are both sleeved on the first tube segment. The first tube segment is connected to the inner tube, and the second electrode tube (62) is connected to the outer tube.

3. The conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 1, characterized in that, The first electrode is a first clamp (35), and the second electrode is a second clamp (36). The first clamp (35) and the second clamp (36) can engage and disengage with each other.

4. The conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 2, characterized in that, An electrode needle is formed at the far end of the second tube section, and the electrode needle has a through hole that communicates with the inside of the first electrode tube (61).

5. The conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 2, characterized in that, The conductive component also includes a first connector (68) and a second connector (69) partially inserted into the adapter tube (54). The first end of the first connector (68) is located inside the adapter tube (54), and the second end of the first connector (68) is located outside the adapter tube (54). The first end of the second connector (69) is located inside the adapter tube (54), and the second end of the second connector (69) is located outside the adapter tube (54). Both the portion of the first connector (68) inserted into the adapter tube (54) and the portion of the second connector (69) inserted into the adapter tube (54) are coated with an insulating coating. The first end of the first connector (68) is fixedly connected to the proximal end of the first C-shaped half tube (63), and the first end of the second connector (69) is fixedly connected to the proximal end of the second C-shaped half tube (64).

6. The conductive mechanism for a multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 2, characterized in that, The proximal ends of the first C-shaped half tube (63) and the second C-shaped half tube (64) are both fixedly connected to the transition tube (53), and the transition tube (53) is rotatably connected to the adapter tube (54).

7. A multi-degree-of-freedom bipolar high-frequency electrosurgical unit, characterized in that, The conductive mechanism as described in any one of claims 1 to 6 further includes a first pull rope (11), a second pull rope (12), a dial wheel (2), a rope winding wheel assembly, a handle housing, a mounting sleeve (3), and a swing sleeve; The proximal end of the mounting sleeve (3) is mounted on the handle housing. The swing sleeve includes a connecting part and a conductive support part (42) connected sequentially from proximal to distal. The connecting part is rotatably connected to the distal end of the mounting sleeve (3) to form a swing shaft. The swing sleeve swings radially around the swing shaft in the mounting sleeve (3). The conductive element is inserted and supported in the mounting sleeve (3) and the swing sleeve. The first electrode and the second electrode extend out of the swing sleeve. The connecting pipe is set at the rotational connection position between the swing sleeve and the mounting sleeve (3). The adapter pipe (54) is located inside the handle housing. The dial (2) is rotatably mounted on the handle housing, with at least a portion of the dial (2) extending out of the handle housing. The rope winding wheel assembly is installed inside the handle housing, and the dial (2) is connected to the rope winding wheel assembly in a transmission manner. The first end of the first pull rope (11) and the first end of the second pull rope (12) are both connected to the conductive support part (42) and located on opposite sides of the conductive part. The second end of the first pull rope (11) and the second end of the second pull rope (12) are both wound around the rope winding wheel assembly. The dial (2) drives the rope winding wheel assembly to release the second pull rope (12) forward while tightening the first pull rope (11) backward, causing the swing sleeve and electrode to swing in the first direction; the dial (2) drives the rope winding wheel assembly to release the first pull rope (11) forward while tightening the second pull rope (12) backward, causing the swing sleeve and electrode to swing in the second direction.

8. The multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 7, characterized in that, An assembly gap is formed between the conductive component and the mounting sleeve (3). The first pull rope (11) and the second pull rope (12) are both accommodated in the assembly gap. The first end of the first pull rope (11) and the first end of the second pull rope (12) both extend forward out of the assembly gap and connect with the conductive component support (42). The second end of the first pull rope (11) and the second end of the second pull rope (12) both pass through the mounting sleeve (3) in the handle housing and are wound around the rope wheel assembly.

9. The multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 7, characterized in that, It also includes a water pump (91), which is located inside the handle housing, and the outlet of the water pump (91) is connected to the adapter pipe (54).

10. The multi-degree-of-freedom bipolar high-frequency electrosurgical unit according to claim 7, characterized in that, The rope winding pulley assembly includes a drive pulley (71), a first rope winding pulley (72), and a second rope winding pulley (73) installed in the handle housing; The first ends of the first winding wheel (72) and the first pull rope (11) are located on the same side of the conductive element. The first ends of the second winding wheel (73) and the second pull rope (12) are located on the same side of the conductive element. The driving wheel (71) is located between the first winding wheel (72) and the second winding wheel (73). The first winding wheel (72) and the second winding wheel (73) are respectively connected to the driving wheel (71) for transmission. The dial wheel (2) is connected to the driving wheel (71) for transmission. The second end of the first pull rope (11) is wound around the first winding wheel (72), and the second end of the second pull rope (12) is wound around the second winding wheel (73).

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