A combination electrode with hook and bean shapes that has a dripping function

Abstract

This invention discloses a combination electrode with a hook and bean-shaped structure and a dripping function, relating to the field of surgical instrument technology. It includes a handle, with an outer tube mounted at the front end and a telescopic tube slidably mounted thereon, the telescopic tube being inserted into the outer tube. A bean-shaped electrode is mounted at the front end of the outer tube, and a storage groove is provided at the front end of the bean-shaped electrode. A power control switch is located in the middle of the handle to control the electrical energy of the hook and bean-shaped electrodes. A drive mechanism, which can be a push mechanism or a knob mechanism, is provided at the front end of the handle to move the telescopic tube. The hook-shaped electrode is fixed at the front end of the telescopic tube. This invention allows for the switching and alternating use of the hook-shaped and bean-shaped electrodes, achieving the dual purpose of cutting and coagulation. The hook-shaped and bean-shaped electrodes can also be freely rotated 360° via an adjustment mechanism inside the handle to control the direction of the hook-shaped electrode, adapting to surgical needs at different angles.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument technology, and specifically to a combination electrode of hook and bean shapes with a dripping function. Background Technology

[0002] Hook electrodes (electrocoagulation hooks) are one of the most widely used electrosurgical instruments in minimally invasive surgery. However, traditional hook electrodes (electrocoagulation hooks) have many shortcomings:

[0003] First, it has a single function, mainly applicable to tissue electrocautery, but its hemostasis or coagulation effect is not ideal, and it cannot effectively handle bleeding that occurs during the operation.

[0004] Secondly, when tissue / organ bleeding occurs during surgery, surgeons often need to switch to other energy devices for hemostasis or coagulation, which not only increases the hassle of frequent device changes but also prolongs the operation time and increases the amount of bleeding.

[0005] Third, the tip design of traditional hook electrodes (electrocoagulation hooks) is relatively blunt, which causes greater damage to tissues during electroresection and is not precise enough in dissection;

[0006] Fourth, the traditional hook electrode (electrocoagulation hook) has a simple handle structure, lacks ergonomic optimization, is unstable in grip, is not dexterous in movement, and is prone to finger fatigue after long-term operation.

[0007] Fifth, the power switch of the traditional hook electrode (electrocoagulation hook) is controlled by a foot pedal. During the operation, the surgeon needs to stand on one leg while the other leg is used to repeatedly step on the foot pedal. This can easily lead to muscle fatigue in the lower limbs or even knee joint damage, and also affect the quality of the operation and work efficiency. Summary of the Invention

[0008] The purpose of this invention is to provide a hook-shaped and bean-shaped combined electrode with a dripping function to solve the above-mentioned technical defects.

[0009] The present invention solves the above-mentioned technical problems through the following technical solution: The present invention includes a handle, wherein an outer tube is installed at the front end of the handle and a telescopic tube is slidably installed thereon, and the telescopic tube is inserted into the outer tube.

[0010] A bean-shaped electrode is installed at the front end of the outer tube, and a storage groove is opened at the front end of the bean-shaped electrode;

[0011] The front end of the handle is provided with a drive mechanism to move the telescopic tube. A hook-shaped electrode is fixed at the front end of the telescopic tube. The front end of the telescopic tube slides through the bean-shaped electrode, and the hook-shaped electrode is installed at the front end of the telescopic tube. The telescopic tube is driven to move by the drive mechanism, so that the hook-shaped front end of the hook-shaped electrode moves into or out of the storage slot, so as to achieve the purpose of switching and alternating between the hook-shaped electrode and the bean-shaped electrode.

[0012] The handle is equipped with a power control switch in the middle, which is used to control the power supply and de-energization of the bean-shaped electrode and the hook-shaped electrode.

[0013] Preferably, the outer tube can rotate freely 360° via a rotary adjustment mechanism. The rotary adjustment mechanism includes a base disposed at the front end of the handle and a rotary cylinder rotatably mounted on the base. The rotary cylinder is connected to the outer tube via an adapter.

[0014] Preferably, the adapter includes a ring sleeved on the outside of the outer sleeve, the ring having a notch, and a protrusion fixed to the outer sleeve being engaged in the notch;

[0015] At least one slot is provided on the rotating cylinder, and at least one protrusion is provided on the ring. The protrusion is adapted to the slot to realize the synchronous rotation of the rotating cylinder, the ring and the outer tube.

[0016] Preferably, a pin is fixed through the middle section of the outer tube at the far end of the rotary mechanism, and a sleeve is fixed on the middle section of the telescopic tube corresponding to the pin. The cross-section of the sleeve is semi-circular or flat-circular, and the pin fits into the semi-circular or flat-circular tube wall of the sleeve, so as to achieve the purpose of the telescopic tube being able to move back and forth and rotate synchronously with the outer tube.

[0017] Preferably, the driving mechanism is a push-type structure, which includes a first connecting seat that is slidably installed along the length of the handle and located inside the handle, and the rear end of the telescopic tube is fixed to the first connecting seat; the handle has an elongated hole corresponding to the first connecting seat, and a push block that passes through the elongated hole is fixed on the first connecting seat, and the extension and retraction of the hook electrode can be controlled by pushing and pulling the push block.

[0018] Preferably, the drive mechanism is a rotary structure, which includes a second connecting seat that is slidably installed along the length of the handle and located inside the handle, and the rear end of the telescopic tube is fixed to the second connecting seat;

[0019] The second connecting seat is provided with a rack, and a rotating wheel is rotatably mounted on the outside of the handle. The rotating wheel is fixedly connected to a gear through a rotating shaft. The gear is located inside the handle and meshes with the rack. By rotating the rotating wheel and with the cooperation of the gear and rack, the extension and retraction of the hook electrode can be controlled.

[0020] Preferably, the handle has a drip tube at the rear end, and the two ends of the drip tube are connected to the rear end of the telescopic tube and the external infusion bag, respectively. The rod of the hook electrode has a flat circular cross-section to form an infusion hole at the front end of the telescopic tube, so as to discharge medical saline through the infusion hole.

[0021] Preferably, two symmetrical guide plates are rotated inside the infusion port via a rotating shaft, and a micro airbag is provided on the outer side of each of the two guide plates. The micro airbag is controlled to contract or expand by an adjustment mechanism provided on the handle.

[0022] Both of the micro airbags have three states: contracted, semi-inflated, and fully inflated. The angle of the two guide plates can be adjusted to combine the two guide plates into four forms, including an expanded form, a compressed form, a right-tilting form, and a left-tilting form.

[0023] Preferably, the adjustment mechanism includes a slider slidably disposed in the handle and a return spring for driving the slider displacement. The outer side of the slider is provided with an elongated hole opened in the handle. A rotating rod is rotatably mounted on the slider. The outer end of the rotating rod passes through the elongated hole and is fixed with a push-rotating block. Grooves are provided on the upper and lower sides of the slider. Flip plates are fixed on the upper and lower sides of the rotating rod. Air cylinder components are provided on the front side of the two flip plates. The air cylinder components are respectively connected to the two micro airbags through air tubes.

[0024] Preferably, the air cylinder includes an outer cylinder fixed to the inside of the handle, a piston rod and an inner push spring for driving the piston rod to move outward are slidably disposed inside the outer cylinder, the bottom of the outer cylinder is connected to a micro airbag through an air tube, and the flap abuts against the outer end of the piston rod.

[0025] Preferably, a tubular insulating section is installed at the front end of the outer sleeve, and the bean-shaped electrode is installed at the front end of the tubular insulating section; a tubular insulating layer is sleeved on the outer periphery of the front end of the telescopic tube.

[0026] The synergistic effect of the tubular insulating section and the tubular insulating layer is to prevent the hook-shaped tip of the hook electrode from generating an induced current on the bean-shaped electrode when it is energized, thus preventing the bean-shaped electrode from causing electrical burns to the surrounding normal tissue.

[0027] Preferably, the handle is further provided with a power cord at the rear end, which is electrically connected to the hook-shaped electrode. When the hook-shaped tip of the hook-shaped electrode extends beyond the bean-shaped electrode, only the hook-shaped electrode is energized, while the bean-shaped electrode is not energized. When the hook-shaped tip of the hook-shaped electrode retracts into the storage groove of the bean-shaped electrode, the hook-shaped electrode and the bean-shaped electrode form electrical contact, thereby energizing the bean-shaped electrode as well. The hook-shaped electrode extends and retracts alternately to achieve the purpose of the hook-shaped electrode and the bean-shaped electrode alternately performing electrocutting and electrocoagulation functions.

[0028] The two power control switches control the electric cutting operation and the electrocoagulation operation, respectively.

[0029] Preferably, the hook-shaped electrode can be replaced by a sheet-shaped, needle-shaped, bean-shaped, shovel-shaped, hammer-shaped, tubular, or semi-tubular electrode.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The interchangeable structure of hook-shaped and bean-shaped electrodes allows for the alternating use of the excellent electrocautery function of the hook-shaped electrode and the excellent electrocoagulation function of the bean-shaped electrode, avoiding frequent instrument changes during surgery, shortening operation time, and reducing intraoperative bleeding.

[0032] 2. Because the hook electrode only needs to perform the electrocautery function (unlike the traditional electrocoagulation hook which needs to perform both electrocautery and electrocoagulation functions simultaneously), its hook-shaped tip design is more refined, which improves the accuracy of anatomical operations, reduces damage to surrounding healthy tissues, and accelerates postoperative recovery.

[0033] 3. The handle is designed in accordance with ergonomic principles, which improves the stability of the grip and the dexterity of operation, and helps to reduce finger strain caused by long-term surgery.

[0034] 4. Both electrocautery and electrocoagulation are controlled by a hand switch located on the handle, eliminating the traditional design where the power switch is controlled by a foot pedal. This avoids the drawbacks of lower limb fatigue and knee joint damage caused by standing on one leg and stepping on one leg during surgery, thus improving surgical quality and work efficiency.

[0035] 5. The medical saline supply system with built-in drip tube and drain hole can reduce the burns to tissue production caused by the instantaneous high temperature of the electrode, avoid the formation of eschar or carbonization, accelerate the heat transfer to deeper tissues, and improve hemostasis and coagulation effects. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural schematic diagram of the first embodiment of the driving mechanism in this invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the rotary tuning mechanism;

[0038] Figure 3 for Figure 1 Schematic diagram of the half-section structure of the middle handle;

[0039] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0040] Figure 5 This is a three-dimensional structural schematic diagram of the second embodiment of the driving mechanism in this invention;

[0041] Figure 6 for Figure 5 Exploded view of the drive mechanism;

[0042] Figure 7 for Figure 5 A three-dimensional structural diagram of the central drive mechanism;

[0043] Figure 8 This is a schematic diagram of the sleeve installation structure;

[0044] Figure 9 This is a three-dimensional structural diagram of the adjustment mechanism in this invention;

[0045] Figure 10 This is a schematic diagram of the planar structure of the adjustment mechanism in this invention;

[0046] Figure 11 A schematic diagram of the planar structure of the extended form of the two guide plates;

[0047] Figure 12 A schematic diagram of the planar structure of the two guide plates in their compressed state;

[0048] Figure 13 A schematic diagram of the planar structure of two guide plates tilted to the right;

[0049] Figure 14 This is a schematic diagram of a planar structure with two guide plates tilted to the left.

[0050] The numbers in the image represent:

[0051] 1-Handle; 11-Power control switch; 12-Power cord; 2-Outer sleeve; 21-Rotating ring; 3-Tuning mechanism; 31-Base; 32-Rotating cylinder; 33-Ring; 34-Protrusion; 35-Protrusion; 36-Slot; 4-Bean-shaped electrode; 41-Tube-shaped insulating section; 42-Receiving groove; 5-Telescopic tube; 51-Tube-shaped insulating layer; 52-Infusion port; 6-Drive mechanism; 61-First connecting seat; 62-Elongated hole; 63-Push block; 6 4-Second connecting seat; 65-Rack; 66-Gear; 67-Rotating wheel; 7-Drip pipe; 8-Hook-shaped electrode; 91-Sleeve; 92-Pin; 10-Adjusting mechanism; 101-Slide frame; 102-Slider; 103-Push-rotate block; 104-Outer cylinder; 105-Piston rod; 106-Reset spring; 107-Flip plate; 108-Rotating rod; 109-Groove; 1010-Inner push spring; 111-Guide plate; 112-Miniature airbag. Detailed Implementation

[0052] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0053] This embodiment provides a technical solution: a hook-shaped and bean-shaped combined electrode with a dripping function, such as... Figures 1-14As shown, the device includes a handle 1. The handle 1 has an overall elongated shape, which is more ergonomic and easier for medical personnel to operate. The front end of the handle 1 is rotatably mounted with an outer tube 2 via a rotating ring 21 and a telescopic tube 5 is slidably mounted with a drive mechanism 6. The telescopic tube 5 is inserted into the outer tube 2. A bean-shaped electrode 4 is mounted on the front end of the outer tube 2. The front end of the telescopic tube 5 slides through the bean-shaped electrode 4. A hook-shaped electrode 8 is mounted on the front end of the telescopic tube 5. The hook-shaped electrode 8 has a hook-shaped front end. A storage groove 42 is opened on the spherical structure of the bean-shaped electrode 4. The hook-shaped front end of the hook-shaped electrode 8 can be stored in the storage groove 42.

[0054] Specifically, a tubular insulating section 41 is installed at the front end of the outer sleeve 2, and a bean-shaped electrode 4 is installed at the front end of the tubular insulating section 41; a tubular insulating layer 51 is sleeved on the outer periphery of the front end of the telescopic tube 5; the synergistic effect of the tubular insulating section 41 and the tubular insulating layer 51 is to prevent the induced current generated on the bean-shaped electrode 4 when the hook-shaped front end of the hook-shaped electrode 8 is energized, so as to prevent the bean-shaped electrode 4 from causing electrical burns to the surrounding normal tissue.

[0055] A drip tube 7 and a power cord 12 are provided at the rear end of the handle 1. The drip tube 7 is connected to the rear end of the telescopic tube 5. The drip tube 7 is a flexible tube that can deform as the telescopic tube 5 moves. The outer end of the drip tube 7 is connected to an external infusion bag. The cross-section of the rod of the hook electrode 8 is a flat circular structure to form an infusion hole 52 at the front end of the telescopic tube 5. The infusion hole 52 is connected to the inner cavity of the telescopic tube 5, so that medical saline can be discharged sequentially through the drip tube 7, the inner cavity of the telescopic tube 5, and the infusion hole 52.

[0056] The power cord 12 is electrically connected to the hook electrode 8. When the hook-shaped tip of the hook electrode 8 extends beyond the bean-shaped electrode 4, only the hook electrode 8 is energized, while the bean-shaped electrode 4 is not energized. When the hook-shaped tip of the hook electrode 8 retracts into the receiving groove 42 of the bean-shaped electrode 4, the hook electrode 8 and the bean-shaped electrode 4 form electrical contact, thus energizing both the hook electrode 8 and the bean-shaped electrode 4 simultaneously. The hook electrode 8 alternately extends and retracts, thereby achieving the purpose of alternating the electrocutting and electrocoagulation functions of the hook electrode 8 and the bean electrode 4. Two power control switches 11 are provided in the middle of the handle 1, which control the electrocutting operation and the electrocoagulation operation respectively.

[0057] In an optional embodiment, the tuning mechanism 3 includes a base 31 disposed at the front end of the handle 1 and a rotating cylinder 32 rotatably mounted on the base 31. The outer surface of the rotating cylinder 32 has an anti-slip structure, such as anti-slip texture or anti-slip groove. The rotating cylinder 32 is connected to the outer sleeve 2 via an adapter. The adapter includes a ring 33 sleeved on the outside of the outer sleeve 2, and the ring 33 has a notch. A protrusion 34 fixed to the outer sleeve 2 is disposed in the notch. At least one slot 36 is provided on the rotating cylinder 32. The ring 33 has at least one protrusion 35, and the protrusion 35 is adapted to the slot 36 so that the rotating cylinder 32, the ring 33 and the outer sleeve 2 can rotate synchronously. That is, in use, by turning the rotating cylinder 32, the outer sleeve 2 can be driven to rotate. The bean-shaped electrode 4 is fixed to the end of the outer sleeve 2. Therefore, when the outer sleeve 2 is rotated, the bean-shaped electrode 4 and the hook-shaped electrode 8 will rotate synchronously.

[0058] A pin 92 is fixed through the middle section of the outer tube 2 at the far end of the rotary mechanism 3. A sleeve 91 is fixed in the middle section of the telescopic tube 5 corresponding to the pin 92. The cross-section of the sleeve 91 is semi-circular or flat-circular. The pin 92 fits into the semi-circular or flat-circular tube wall of the sleeve 91. When the telescopic tube 5 moves horizontally, the pin 92 will not cause obstruction. When the outer tube 2 is driven to rotate by the rotary mechanism 3, the telescopic tube 5 will rotate with the outer tube 2 because the pin 92 fits into the semi-circular or flat-circular tube wall. This will further drive the hook electrode 8, so as to achieve the purpose of the telescopic tube 5 being able to move back and forth and rotate synchronously with the outer tube 2.

[0059] In one optional embodiment, the drive mechanism 6 is a push-type structure (which is the first embodiment), which includes a first connecting seat 61 that is slidably installed along the length direction of the handle 1 and located inside the handle 1, and the rear end of the telescopic tube 5 is fixed to the first connecting seat 61. An elongated hole 62 corresponding to the position of the first connecting seat 61 is provided on the handle 1, and a push block 63 that passes through the elongated hole 62 is fixed on the first connecting seat 61. The outer surface of the push block 63 is provided with anti-slip texture to increase friction.

[0060] In use, by manually pushing the push block 63, the hook electrode 8 can be moved along the outer sleeve 2. When hemostasis / coagulation is required, the drive mechanism 6 retracts the hook-shaped tip of the hook electrode 8 into the storage groove 42 and energizes the bean-shaped electrode 4, so that hemostasis / coagulation can be performed through the spherical structure of the bean-shaped electrode 4. When tissue dissection is required, the drive mechanism 6 pushes the hook-shaped tip of the hook electrode 8 out of the storage groove 42, so that dissection can be performed through the hook-shaped tip of the hook electrode 8, thus achieving free switching of electrodes.

[0061] In another optional embodiment, the drive mechanism 6 is a rotary structure (which is the second embodiment), which includes a second connecting seat 64 that is slidably installed along the length of the handle 1 and located inside the handle 1, and the rear end of the telescopic tube 5 is fixed to the second connecting seat 64; a rack 65 is provided on the second connecting seat 64, and a rotary wheel 67 is rotatably installed on the outside of the handle 1. The rotary wheel 67 is fixedly connected to a gear 66 through a rotating shaft. The gear 66 is located inside the handle 1 and meshes with the rack 65; by rotating the rotary wheel 67 and with the cooperation of the gear 66 and the rack 65, the extension and retraction of the hook electrode 8 can be controlled. An anti-slip structure is provided on the outer circumferential surface of the rotary wheel 67 to save rotational force.

[0062] In use, by manually turning the rotating wheel 67, the gear 66 is driven to rotate synchronously, and further cooperates with the rack 65 to drive the second connecting seat 64 to move along the length direction of the handle 1. The direction of movement of the second connecting seat 64 is confirmed according to the direction of turning the rotating wheel 67, and the displacement of the telescopic tube 5 and the hook electrode 8 is ultimately controlled.

[0063] Two symmetrical guide plates 111 are mounted inside the infusion port 52 via a rotating shaft. The vertical dimension of the guide plates 111 is adapted to the vertical dimension of the infusion port 52. The overall structure of the guide plates 111 is bent. A micro airbag 112 is provided on the outer side of each guide plate 111. The guide plates 111 and the micro airbags 112 are bonded and fixed. The micro airbags 112 can contract or expand, thereby adjusting the angle of the two guide plates 111. The contraction or expansion of the micro airbags 112 is controlled by the adjustment mechanism 10 provided on the handle 1.

[0064] Both micro-airbags 112 have three states: contracted, semi-inflated, and fully inflated, so that the two guide plates 111 can be combined into four configurations, namely:

[0065] I. Expanded Form: Both micro-inflatable airbags 112 are in a semi-inflated state. At this time, with the two micro-inflatable airbags 112 in contact, the horizontal portions of the two guide plates 111 are parallel to the telescopic tube 5. Therefore, guided by the two guide plates 111, the medical saline solution discharged through the infusion port 52 flushes forward. This water flow is relatively wide and gentle. Figure 11 As shown;

[0066] II. Compression Mode: Both micro-inflators 112 are fully inflated. At this state, under the contact of the two micro-inflators 112, the horizontal portions of the two guide plates 111 converge towards the front end, forming a figure-eight structure. Therefore, guided by the two guide plates 111, the medical saline solution discharged through the infusion port 52 flows forward and aggressively. Figure 12 As shown;

[0067] III. Rightward Tilt Configuration: The micro-inflator 112 on the left is fully inflated, while the micro-inflator 112 on the right is compressed. The horizontal sections of both guide plates 111 are tilted to the right. Therefore, under the guidance of the two guide plates 111, the medical saline solution discharged through the infusion port 52 tilts to the right. Figure 13 As shown;

[0068] IV. Leftward Tilt Configuration: The micro-inflator 112 on the right is fully inflated, while the micro-inflator 112 on the left is compressed. The horizontal sections of both guide plates 111 are tilted to the left. Therefore, under the guidance of the two guide plates 111, the medical saline solution discharged through the infusion port 52 tilts to the left. Figure 14 As shown.

[0069] Furthermore, the adjustment mechanism 10 includes a slider 102 slidably disposed within the handle 1, and an elongated hole is provided on the outer side of the slider 102 and opened in the handle 1. A rotating rod 108 is rotatably mounted on the slider 102, and the outer end of the rotating rod 108 passes through the elongated hole and is fixed with a push-rotating block 103. Grooves 109 are provided on the upper and lower sides of the slider 102, and flaps 107 are fixed on the upper and lower sides of the rotating rod 108. Air cylinders are provided on the front side of the two flaps 107, and the two flaps 107 abut against the air cylinders. The air cylinders are connected to two micro airbags 112 through air tubes. When one of the air cylinders is squeezed, the corresponding micro airbag 112 can be inflated to a fully expanded state. When the air cylinder is not squeezed, the micro airbag 112 is in a contracted state. When the air cylinder is restricted, the micro airbag 112 is in a semi-inflated state.

[0070] The air pump assembly includes an outer cylinder 104 fixed inside the handle 1. A piston rod 105 and an inner push spring 1010 that drive the piston rod 105 to move outward are slidably disposed inside the outer cylinder 104. The bottom of the outer cylinder 104 is connected to the micro airbag 112 through an air tube. The flap 107 abuts against the outer end of the piston rod 105.

[0071] Furthermore, the end of the piston rod 105 that contacts the flap 107 is tapered to ensure that the contact position between the piston rod 105 and the flap 107 does not change when the flap 107 is tilted.

[0072] Furthermore, a sliding frame 101 is fixed inside the handle 1, and elongated slots are provided on the upper and lower sides of the sliding frame 101. Two flaps 107 pass through the two elongated slots respectively, and a return spring 106 is provided inside the sliding frame 101. The return spring 106 applies a force to the slider 102 to move backward.

[0073] In operation, the slider 102 will move to the last side of the long waist hole under the force of the return spring 106, and the two flaps 107 will remain vertical due to the force of the two push springs 1010. At this time, the two air cylinders are not compressed, and the two micro airbags 112 are in a semi-inflated state, that is, in the expanded form.

[0074] When the push block 103 is pushed forward, the two piston rods 105 are simultaneously pushed to move into the outer cylinder 104, and the return spring 106 and the two inner push springs 1010 are compressed, so that the air in the two outer cylinders 104 enters the two micro airbags 112. The two micro airbags 112 expand, driving the two guide plates 111 to flip, which is the compressed state.

[0075] When the push block 103 is rotated upwards to a set angle (the upper outer cylinder 104 is connected to the left micro airbag 112 via an air pipe, and the lower outer cylinder 104 is connected to the right micro airbag 112 via an air pipe), the upper and lower flaps 107 flip forward and backward respectively. The upper flap 107 pushes the upper piston rod 105 into the outer cylinder 104 and compresses the internal push spring 1010. The air in the outer cylinder 104 enters the left micro airbag 112, and the left micro airbag 112 expands, driving the left guide plate 111 to flip to the right. The lower piston rod 105 will move outwards due to the force of the internal push spring 1010, drawing the air out of the right micro airbag 112 to make it contract, driving the right guide plate 111 to flip to the right, which is the tilted rightward state.

[0076] When the push block 103 is rotated downwards at a set angle, the upper and lower flaps 107 flip backwards and forwards respectively. The lower flap 107 pushes the lower piston rod 105 into the outer cylinder 104 and compresses the internal push spring 1010. The air in the outer cylinder 104 enters the right micro airbag 112. The right micro airbag 112 expands, driving the right guide plate 111 to flip to the left. Meanwhile, the upper piston rod 105 is displaced outwards by the force of the internal push spring 1010, drawing the air out of the left micro airbag 112 to make it contract, driving the left guide plate 111 to flip to the left, which is the tilted leftward position.

[0077] Furthermore, a flat surface can be provided on the outer circumferential surface of the push block 103. When the push block 103 is not pushed or rotated, the flat surface of the push block 103 faces the rear side, so that the operator can identify whether the position of the push block 103 is in place, and so that the operator can push or rotate the push block 103.

[0078] The above are merely preferred embodiments of the present invention and are illustrative in nature, not restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A hook-shaped and bean-shaped combined electrode with a dripping function, characterized in that, It includes a handle (1), the front end of the handle (1) is provided with an outer sleeve (2) and a telescopic tube (5) is slidingly installed, and the telescopic tube (5) is inserted into the outer sleeve (2); The front end of the outer sleeve (2) is provided with a bean-shaped electrode (4), and a receiving groove (42) is formed in the front end of the bean-shaped electrode (4); The front end of the handle (1) is provided with a driving mechanism (6) for driving the telescopic tube (5) to move, the front end of the telescopic tube (5) is fixedly provided with a hook-shaped electrode (8), the front end of the telescopic tube (5) is slidingly penetrated into the bean-shaped electrode (4), and the hook-shaped electrode (8) is installed on the front end of the telescopic tube (5); the telescopic tube (5) is driven to displace by the driving mechanism (6), so that the hook-shaped front end of the hook-shaped electrode (8) moves into or out of the receiving groove (42), so as to realize the mutual switching and alternating use of the hook-shaped electrode (8) and the bean-shaped electrode (4); The middle part of the handle (1) is provided with a power control switch (11) for controlling the power-on and power-off of the bean-shaped electrode (4) and the hook-shaped electrode (8); The rear end of the handle (1) is provided with a drip tube (7), the two ends of the drip tube (7) are respectively connected with the rear end of the telescopic tube (5) and an external infusion bag, and the rod part of the hook-shaped electrode (8) has a flat circular cross-section structure to form an infusion hole (52) at the front end of the telescopic tube (5) to realize the discharge of medical saline through the infusion hole (52); Two symmetrical guide plates (111) are arranged in the infusion hole (52) by a rotating shaft, and each outer side of the two guide plates (111) is provided with a micro air bag (112), and the micro air bag (112) is controlled to contract or expand by an adjusting mechanism (10) arranged on the handle (1); The two micro air bags (112) have three states of contraction, half expansion and full expansion, and the angles of the two guide plates (111) are adjusted to combine the two guide plates (111) into four modes, including an expansion mode, a compression mode, a right side tilt mode and a left side tilt mode.

2. The hook and bean combined electrode having a water drop function according to claim 1, wherein The outer sleeve (2) is freely rotated by 360° through a rotation adjusting mechanism (3), and the rotation adjusting mechanism (3) includes a base (31) arranged at the front end of the handle (1) and a rotating cylinder (32) rotatably installed on the base (31), and the rotating cylinder (32) is connected with the outer sleeve (2) through a connecting piece.

3. The hook and bean combined electrode having a water dripping function according to claim 2, wherein The connecting piece includes a circular ring (33) sleeved on the outer side of the outer sleeve (2), and a notch is formed in the circular ring (33), and a protrusion (34) fixed to the outer sleeve (2) is clamped in the notch; At least one clamping groove (36) is formed in the rotating cylinder (32), and at least one protruding part (35) is arranged on the circular ring (33), and the protruding part (35) is matched with the clamping groove (36) to realize the synchronous rotation of the rotating cylinder (32), the circular ring (33) and the outer sleeve (2).

4. The hook and bean combined electrode having a water dripping function according to claim 2, wherein The middle section of the outer sleeve (2) is fixed with a pin (92) at the distal end of the rotation adjusting mechanism (3), and the middle section of the telescopic tube (5) is fixed with a sleeve (91) at the corresponding position of the pin (92), the cross section of the sleeve (91) is semicircular or oblate, the pin (92) is matched with the semicircular or oblate wall of the sleeve (91), so that the telescopic tube (5) can move forward and backward and rotate synchronously with the outer sleeve (2).

5. The hook and bean combined electrode having a water drop function according to claim 1, wherein The driving mechanism (6) is a flat push type structure, which comprises a first connecting seat (61) slidingly installed along the length direction of the handle (1) and located in the handle (1), and the rear end of the telescopic tube (5) is fixed to the first connecting seat (61); an elongated hole (62) corresponding to the first connecting seat (61) is formed in the handle (1), and a push block (63) penetrating through the elongated hole (62) is fixed to the first connecting seat (61), and the telescopic tube (5) is controlled by pushing and pulling the push block (63).

6. The hook and bean combined electrode having a water drop function according to claim 1, wherein the hook electrode is formed in a shape of a hook having a hook portion and a leg portion, and the bean electrode is formed in a shape of a bean having a bean portion and a leg portion. The driving mechanism (6) is a rotating wheel type structure, which comprises a second connecting seat (64) slidingly installed along the length direction of the handle (1) and located in the handle (1), and the rear end of the telescopic tube (5) is fixed to the second connecting seat (64); The second connecting seat (64) is provided with a rack (65), and the outer side of the handle (1) is rotatably installed with a rotating wheel (67), the rotating wheel (67) is fixedly connected with a gear (66) through a rotating shaft, and the gear (66) is located in the handle (1) and is in meshing connection with the rack (65); the telescopic tube (5) is controlled by rotating the rotating wheel (67) and cooperating the gear (66) with the rack (65).

7. The hook and bean combined electrode having a water drop function according to claim 1, wherein the hook electrode is formed by bending the bean electrode. The adjusting mechanism (10) comprises a sliding block (102) slidingly arranged in the handle (1) and a return spring (106) driving the displacement of the sliding block (102), the outer side of the sliding block (102) is provided with a long waist hole formed in the handle (1), the sliding block (102) is rotatably installed with a rotating rod (108), the outer end of the rotating rod (108) penetrates through the long waist hole and is fixed with a push rotating block (103), the upper and lower sides of the sliding block (102) are provided with grooves (109), the upper and lower sides of the rotating rod (108) are fixed with flaps (107), the front sides of the two flaps (107) are provided with air cylinder pieces, and the air cylinder pieces are connected with the two micro air bags (112) through air pipes respectively.

8. The hook and bean combined electrode having a water dripping function according to claim 7, wherein The air cylinder piece comprises an outer cylinder (104) fixed to the inner side of the handle (1), the outer cylinder (104) is sealingly and slidingly arranged with a piston rod (105) and an inner push spring (1010) driving the outward displacement of the piston rod (105), the bottom of the outer cylinder (104) is communicated with the micro air bag (112) through an air pipe, and the flap (107) abuts against the outer end of the piston rod (105).

9. The hook and bean combined electrode having a water drop function according to claim 1, wherein the hook electrode is formed in a shape of a hook having a hook portion and a leg portion, and the bean electrode is formed in a shape of a bean having a bean portion and a leg portion. The front end of the outer sleeve (2) is provided with a tubular insulation section (41), and the bean-shaped electrode (4) is installed at the front end of the tubular insulation section (41); the front end of the telescopic tube (5) is provided with a tubular insulation layer (51). The tubular insulation section (41) cooperates with the tubular insulation layer (51) to prevent the generation of induced current on the bean-shaped electrode (4) during the energization of the hook-shaped front end of the hook-shaped electrode (8), thereby preventing the bean-shaped electrode (4) from causing electrical burns to the surrounding normal tissue.

10. The hook and bean combined electrode having a water drop function according to claim 1, wherein the hook electrode is formed in a shape of a hook having a hook portion and a leg portion, and the bean electrode is formed in a shape of a bean having a bean portion and a leg portion. The handle (1) is further provided with a power cord (12) electrically connected with the hook-shaped electrode (8); when the hook-shaped front end of the hook-shaped electrode (8) extends out of the bean-shaped electrode (4), only the hook-shaped electrode (8) is energized, and the bean-shaped electrode (4) is not energized; when the hook-shaped front end of the hook-shaped electrode (8) is retracted into the receiving groove (42) of the bean-shaped electrode (4), the hook-shaped electrode (8) is in electrical contact with the bean-shaped electrode (4), so that the bean-shaped electrode (4) is also energized; the hook-shaped electrode (8) is alternately extended and retracted to achieve the purpose of alternately exerting the functions of electrical cutting and electrical coagulation by the hook-shaped electrode (8) and the bean-shaped electrode (4). The two power control switches (11) control the electrical cutting operation and the electrical coagulation operation, respectively.

11. The hook and bean combined electrode having a water drop function according to claim 1, wherein The hook-shaped electrode (8) can be replaced by a sheet-shaped electrode, a needle-shaped electrode, a bean-shaped electrode, a shovel-shaped electrode, a hammer-shaped electrode, a tubular electrode, and a half-tubular electrode.

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