Plasma operation device with replaceable bent electrode

Abstract

A handle shell is divided into a front left handle shell body, a front right handle shell body and a rear handle shell body, the front left handle shell body is located in front of the left end of the rear handle shell body and detachably connected with the rear handle shell body, and the front right handle shell body is located in front of the rear handle shell body and connected with the rear handle shell body. The front left handle shell is located on the left side of the front right handle shell and abuts against the front right handle shell. The fixing block is detachably arranged between the left end face of the front left handle shell and the left end face of the rear handle shell. The right end of the first traction wire electrode section and the left end of the first traction wire handle section, the right end of the second traction wire electrode section and the left end of the second traction wire handle section, and the right end of the transmitting electrode wire electrode section and the left end of the transmitting electrode wire handle section are all located between the left end of the front left handle shell and the left end of the rear handle shell and detachably connected with one another. The bending electrode can be replaced, so that resources are saved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of minimally invasive surgical instruments for intervertebral disc herniation, in particular to the technical field of plasma radiofrequency ablation instruments, and specifically refers to a plasma surgical device with replaceable curved electrodes. Background Art

[0002] At present, the minimally invasive surgical treatment options for disc herniation generally include perforaminal endoscopic discectomy, ozone disc minimally invasive ablation, and plasma ablation nucleoplasty. Among these three options, perforaminal endoscopic discectomy requires a lot of instruments to be used under the endoscope, and the overall surgical cost is high, which increases the burden on medical insurance and patients; ozone disc minimally invasive ablation is suitable for disc-induced low back pain, mild to moderate simple contained lumbar disc herniation, and has narrow indications; plasma ablation nucleoplasty does not require a perforaminal endoscopic discectomy and can be performed in more hospitals. At the same time, because the intradiscal nucleus pulposus is directly ablated, it does not damage the nerve roots and will not cause bleeding in the lesion site.

[0003] The therapeutic principle of plasma ablation nucleoplasty for the treatment of intervertebral disc herniation is that the plasma blade forms a uniform plasma film layer in an environment below 70 degrees, so that a large number of charged sodium ion particles are absorbed around the vaporized ion blade, obtaining sufficient kinetic energy to impact and break the organic molecular chains between the cells of the nucleus pulposus tissue, thereby vaporizing part of the painful nucleus pulposus tissue in the intervertebral disc, which can shrink the helical structure of the collagen molecule without destroying its biological activity.

[0004] The current plasma radiofrequency ablation devices are all disposable integral and non-detachable. The first traction wire, the second traction wire and the transmitting electrode wire are all whole and are respectively arranged in the curved electrode and the handle. Therefore, there are the following problems:

[0005] 1. Waste of resources: Existing plasma radiofrequency ablation devices are all disposable, and the handles connected to the curved electrodes are also discarded, resulting in a large amount of resource waste. In the context of total resource management, scientific allocation, comprehensive conservation, and recycling, the waste of recyclable resources should be avoided as much as possible;

[0006] 2. High cost: Existing plasma radiofrequency ablation devices are not replaceable or disassembled, which increases the cost.

[0007] Therefore, it is desired to provide a plasma surgical device with a replaceable curved electrode, wherein the replaceable curved electrode can save resources and reduce costs. Utility Model Content

[0008] In order to overcome the above-mentioned shortcomings of the prior art, one object of the present invention is to provide a plasma surgical device with a replaceable curved electrode, wherein the replaceable curved electrode saves resources, reduces costs, and is suitable for large-scale promotion and application.

[0009] Another object of the utility model is to provide a plasma surgical device with replaceable curved electrodes, which has an ingenious design, a simple structure, and is easy to replace the curved electrodes, and is suitable for large-scale promotion and application.

[0010] To achieve the above purpose, the utility model provides a plasma surgical device with a replaceable curved electrode, comprising a curved electrode, a fixed block, a handle, a first traction wire, a second traction wire and a transmitting electrode wire, wherein the curved electrode, the fixed block, the first traction wire, the second traction wire and the transmitting electrode wire are all arranged along the left-right direction, the left end of the curved electrode is a transmitting head end, the right end of the curved electrode is plugged into the fixed block along the left-right direction and exposed on the right side of the fixed block, the handle is arranged vertically and along the left-right direction, and is characterized in that:

[0011] The handle comprises a front left handle shell, a front right handle shell and a rear handle shell, the front left handle shell, the front right handle shell and the rear handle shell are all arranged vertically and along the left-right direction, the front left handle shell is located in front of the left end of the rear handle shell and is detachably connected to the left end of the rear handle shell, the front right handle shell is located in front of the rear handle shell and is connected to the rear handle shell, the front left handle shell is located on the left side of the front right handle shell and abuts against the front right handle shell, so as to form a handle inner cavity between the front left handle shell, the front right handle shell and the rear handle shell;

[0012] The first traction wire includes a first traction wire electrode segment and a first traction wire handle segment, the second traction wire includes a second traction wire electrode segment and a second traction wire handle segment, the transmitting electrode wire includes a transmitting electrode wire electrode segment and a transmitting electrode wire handle segment, the first traction wire electrode segment, the second traction wire electrode segment and the transmitting electrode wire electrode segment are all arranged in the curved electrode, the right end of the first traction wire electrode segment, the right end of the second traction wire electrode segment and the right end of the transmitting electrode wire electrode segment are all exposed to the right side of the right end of the curved electrode, the first traction wire handle segment, the second traction wire handle segment and the transmitting electrode wire handle segment are all arranged in the handle inner cavity, and the fixing block is detachably arranged on the left side of the front left handle shell. The right end of the bending electrode, the right end of the first traction wire electrode segment, the right end of the second traction wire electrode segment, the right end of the transmitting electrode wire electrode segment, the left end of the first traction wire handle segment, the left end of the second traction wire handle segment and the left end of the transmitting electrode wire handle segment are all located between the front left handle shell and the left end of the rear handle shell, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are detachably connected, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are detachably connected, and the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are detachably connected.

[0013] Preferably, the front left handle shell is snap-connected to the left end of the rear handle shell.

[0014] More preferably, the upper and lower sides of the front side surface of the left end of the rear handle shell are respectively provided with an upper card slot and a lower card slot, and the upper and lower sides of the rear side surface of the front left handle shell are respectively extended backward to form an upper card block and a lower card block, and the upper card block and the lower card block are respectively clamped in the upper card slot and the lower card slot.

[0015] Preferably, the end surface of the left end of the front left handle shell and the end surface of the left end of the rear handle shell are respectively provided with a front groove and a rear groove along the left and right directions, and the front groove and the rear groove are arranged relatively front to back to form a limiting hole, the middle part of the fixing block is located in the limiting hole and the middle part of the fixing block is limited by the limiting hole to rotate around the left and right directions, the middle part of the fixing block is movably embedded in the rear groove along the front and back directions, and the front groove is movably covered on the middle part of the fixing block along the front and back directions, the left end and the right end of the fixing block respectively have a left lateral protrusion and a right lateral protrusion, the left lateral protrusion and the right lateral protrusion are respectively located on the left and right sides of the limiting hole and both abut against the limiting hole.

[0016] Preferably, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are snap-connected.

[0017] More preferably, the plasma surgical device with a replaceable curved electrode also includes a first sleeve and a first elastic hook, the left side of the side wall of the first sleeve is respectively provided with a first front hook hole and a first rear hook hole along the left and right directions, the first front hook hole and the first rear hook hole are arranged at an interval from front to back, the first elastic hook includes a first front elastic rod and a first rear elastic rod, the left end of the first front elastic rod is connected to the left end of the first rear elastic rod to form the left end of the first elastic hook, the right end of the first front elastic rod is extended toward the right front, then extended forward and then extended to the left, the right end of the first rear elastic rod is extended toward the right rear, then extended backward and then extended to the left, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are respectively connected to the left end of the first elastic hook and the first sleeve, the right end of the first front elastic rod and the right end of the first rear elastic rod are respectively hooked with the first front hook hole and the first rear hook hole.

[0018] Preferably, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are snap-connected.

[0019] More preferably, the plasma surgical device with a replaceable curved electrode also includes a second sleeve and a second elastic hook, and the left side of the side wall of the second sleeve is respectively provided with a second front hook hole and a second rear hook hole along the left and right directions, and the second front hook hole and the second rear hook hole are arranged at an interval from front to back, and the second elastic hook includes a second front elastic rod and a second rear elastic rod, the left end of the second front elastic rod is connected to the left end of the second rear elastic rod to form the left end of the second elastic hook, the right end of the second front elastic rod is extended toward the right front, then extended forward and then extended to the left, the right end of the second rear elastic rod is extended toward the right rear, then extended backward and then extended to the left, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are respectively connected to the left end of the second elastic hook and the second sleeve, and the right end of the second front elastic rod and the right end of the second rear elastic rod are respectively hooked with the second front hook hole and the second rear hook hole.

[0020] Preferably, the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are snap-connected.

[0021] More preferably, the plasma surgical device with replaceable curved electrodes further comprises a third sleeve and a third elastic hook, a third front hook hole and a third rear hook hole are respectively arranged on the left side of the side wall of the third sleeve along the left and right directions, the third front hook hole and the third rear hook hole are arranged at intervals from front to back, the third elastic hook comprises a third front elastic rod and a third rear elastic rod, the left end of the third front elastic rod is connected to the left end of the third rear elastic rod to form the left end of the third elastic hook, the right end of the third front elastic rod is extended toward the right front, then extended forward and then extended to the left, the right end of the third rear elastic rod is extended toward the right rear, then extended backward and then extended to the left, the right end of the emitter electrode wire electrode segment and the left end of the emitter electrode wire handle segment are respectively connected to the left end of the third elastic hook and the third sleeve, the right end of the third front elastic rod and the right end of the third rear elastic rod are respectively hooked with the third front hook hole and the third rear hook hole.

[0022] The beneficial effects of the utility model are mainly:

[0023] 1. The handle shell of the plasma surgical device with replaceable curved electrode of the utility model is divided into a front left handle shell, a front right handle shell and a rear handle shell, wherein the front left handle shell is located in front of the left end of the rear handle shell and is detachably connected thereto, the front right handle shell is located in front of the rear handle shell and is connected thereto, the front left handle shell is located on the left side of the front right handle shell and is abutted against it, the fixed block is detachably arranged between the end face of the left end of the front left handle shell and the end face of the left end of the rear handle shell, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment, as well as the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are all located between the front left handle shell and the left end of the rear handle shell and are detachably connected to each other, therefore, the curved electrode is replaceable, thereby saving resources, reducing costs, and being suitable for large-scale promotion and application.

[0024] 2. The handle shell of the plasma surgical device with replaceable curved electrode of the utility model is divided into a front left handle shell, a front right handle shell and a rear handle shell, wherein the front left handle shell is located in front of the left end of the rear handle shell and is detachably connected thereto, the front right handle shell is located in front of the rear handle shell and is connected thereto, the front left handle shell is located on the left side of the front right handle shell and is abutted against it, the fixed block is detachably arranged between the end face of the left end of the front left handle shell and the end face of the left end of the rear handle shell, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment, as well as the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are all located between the front left handle shell and the left end of the rear handle shell and are detachably connected to each other. Therefore, the utility model has ingenious design, simple structure, and easy replacement of the curved electrode, and is suitable for large-scale promotion and application.

[0025] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of a specific embodiment of the plasma surgical device with replaceable curved electrodes of the utility model.

[0027] Figure 2 yes Figure 1 The illustrated embodiment is a front schematic view with the front left handle housing removed.

[0028] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the structure shown.

[0029] Figure 4 yes Figure 1 A schematic left side view of the handle of the specific embodiment shown.

[0030] Figure 5 yes Figure 1 A schematic rear view of the front left handle housing of the specific embodiment shown.

[0031] Figure 6 yes Figure 1 A front view schematic diagram of a fixing block of the specific embodiment shown.

[0032] Figure 7 yes Figure 6 Schematic cross-sectional view of the AA position.

[0033] Figure 8 yes Figure 1 A three-dimensional schematic diagram of the first elastic hook of the specific embodiment shown.

[0034] Fig. 9 yes Figure 1 A schematic three-dimensional diagram of the first sleeve of the specific embodiment shown.

[0035] (Explanation of symbols)

[0036] 1 bending electrode; 2 fixing block; 3 handle; 4 first traction wire; 5 second traction wire; 6 transmitting electrode wire; 7 front left handle shell; 8 front right handle shell; 9 rear handle shell; 10 handle cavity; 11 first traction wire electrode segment; 12 first traction wire handle segment; 13 second traction wire electrode segment; 14 second traction wire handle segment; 15 transmitting electrode wire electrode segment; 16 transmitting electrode wire handle segment; 17 upper clamping groove; 18 lower clamping groove; 19 upper clamping block; 20 lower clamping block; 21 front groove; 22 rear groove; 23 limiting hole; 24 left lateral protrusion; 25 right lateral protrusion; 26 first sleeve; 27 first elastic hook; 28 first partition; 29 second partition; 30 first front clamping hole; 31 first rear clamping hole; 32 first front elastic rod; 33 first rear elastic rod; 34 second sleeve; 35 second elastic hook; 36 third sleeve; 37 third elastic hook. DETAILED DESCRIPTION

[0037] In order to more clearly understand the technical content of the present invention, the following embodiments are given in detail.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] See also Figures 1 to 9 As shown, in a specific embodiment of the utility model, the plasma surgical device with a replaceable curved electrode of the utility model comprises a curved electrode 1, a fixing block 2, a handle 3, a first traction wire 4, a second traction wire 5 and an emission electrode wire 6, wherein:

[0040] The curved electrode 1, the fixed block 2, the first traction wire 4, the second traction wire 5 and the transmitting electrode wire 6 are all arranged along the left-right direction, the left end of the curved electrode 1 is the transmitting head end, the right end of the curved electrode 1 is inserted into the fixed block 2 along the left-right direction and exposed on the right side of the fixed block 2, and the handle 3 is arranged vertically and along the left-right direction;

[0041] The handle 3 includes a front left handle shell 7, a front right handle shell 8 and a rear handle shell 9, the front left handle shell 7, the front right handle shell 8 and the rear handle shell 9 are all arranged vertically and along the left-right direction, the front left handle shell 7 is located in front of the left end of the rear handle shell 9 and is detachably connected to the left end of the rear handle shell 9, the front right handle shell 8 is located in front of the rear handle shell 9 and is connected to the rear handle shell 9, the front left handle shell 7 is located on the left side of the front right handle shell 8 and abuts against the front right handle shell 8, so as to form a handle inner cavity 10 between the front left handle shell 7, the front right handle shell 8 and the rear handle shell 9;

[0042] The first traction wire 4 includes a first traction wire electrode segment 11 and a first traction wire handle segment 12, the second traction wire 5 includes a second traction wire electrode segment 13 and a second traction wire handle segment 14, the transmitting electrode wire 6 includes a transmitting electrode wire electrode segment 15 and a transmitting electrode wire handle segment 16, the first traction wire electrode segment 11, the second traction wire electrode segment 13 and the transmitting electrode wire electrode segment 15 are all arranged in the curved electrode 1, the right end of the first traction wire electrode segment 11, the right end of the second traction wire electrode segment 13 and the right end of the transmitting electrode wire electrode segment 15 are all exposed to the right side of the right end of the curved electrode 1, the first traction wire handle segment 12, the second traction wire handle segment 14 and the transmitting electrode wire handle segment 16 are all arranged in the handle inner cavity 10, and the fixing block 2 is detachably arranged on the front left handle Between the end surface of the left end of the shell 7 and the end surface of the left end of the rear handle shell 9, the right end of the bending electrode 1, the right end of the first traction wire electrode segment 11, the right end of the second traction wire electrode segment 13, the right end of the transmitting electrode wire electrode segment 15, the left end of the first traction wire handle segment 12, the left end of the second traction wire handle segment 14 and the left end of the transmitting electrode wire handle segment 16 are all located between the front left handle shell 7 and the left end of the rear handle shell 9, the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are detachably connected, the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are detachably connected, and the right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are detachably connected.

[0043] The front left handle housing 7 is detachably connected to the left end of the rear handle housing 9 and can adopt any suitable structure. Figure 3 and Figure 5 As shown, in a specific embodiment of the present utility model, the front left handle shell 7 is snap-connected to the left end of the rear handle shell 9.

[0044] The front left handle housing 7 is connected to the left end of the rear handle housing 9 by snapping, and any suitable structure can be adopted. Figure 3 and Figure 5 As shown, in a specific embodiment of the utility model, an upper card slot 17 and a lower card slot 18 are respectively provided on the upper side and the lower side of the front side surface of the left end of the rear handle shell 9, and an upper card block 19 and a lower card block 20 are respectively extended rearward to form an upper card block 19 and a lower card block 20, and the upper card block 19 and the lower card block 20 are respectively clamped in the upper card slot 17 and the lower card slot 18.

[0045] With the above arrangement, when it is necessary to disassemble the front left handle shell 7 from the left end of the rear handle shell 9, the front left handle shell 7 is moved forward so that the upper clamping block 19 and the lower clamping block 20 are moved forward and respectively disengaged from the upper clamping slot 17 and the lower clamping slot 18; when it is necessary to detachably connect the front left handle shell 7 to the left end of the rear handle shell 9, the front left handle shell 7 is placed in front of the left end of the rear handle shell 9 so that the upper clamping block 19 and the lower clamping block 20 are respectively aligned with the upper clamping slot 17 and the lower clamping slot 18, and then the front left handle shell 7 is moved backward so that the upper clamping block 19 and the lower clamping block 20 are moved backward and respectively clamped into the upper clamping slot 17 and the lower clamping slot 18.

[0046] The plasma surgical device with a replaceable curved electrode may also include any other suitable structure. In a specific embodiment of the present invention, the plasma surgical device with a replaceable curved electrode also includes a sealing ring (not shown in the figure), which is located between the front left handle shell 7 and the left end of the rear handle shell 9 and between the front left handle shell 7 and the front right handle shell 8, and is connected to the front left handle shell 7 and respectively abuts against the left end of the rear handle shell 9 and the front right handle shell 8.

[0047] The sealing ring can be a sealing ring made of any suitable material. In a specific embodiment of the present invention, the sealing ring is a rubber ring.

[0048] The fixing block 2 is detachably arranged between the end surface of the left end of the front left handle shell 7 and the end surface of the left end of the rear handle shell 9, and any suitable structure can be adopted, see Figure 1 to Figure 7As shown, in a specific embodiment of the utility model, the end face of the left end of the front left handle shell 7 and the end face of the left end of the rear handle shell 9 are respectively provided with a front groove 21 and a rear groove 22 along the left and right directions, and the front groove 21 and the rear groove 22 are arranged relatively front and back to form a limiting hole 23, the middle part of the fixed block 2 is located in the limiting hole 23 and the middle part of the fixed block 2 is limited to rotate around the left and right directions by the limiting hole 23, the middle part of the fixed block 2 is movably embedded in the rear groove 22 along the front and back directions, and the front groove 21 is movably covered on the middle part of the fixed block 2 along the front and back directions, and the left and right ends of the fixed block 2 are respectively provided with a left lateral protrusion 24 and a right lateral protrusion 25, and the left lateral protrusion 24 and the right lateral protrusion 25 are respectively located on the left and right sides of the limiting hole 23 and both abut against the limiting hole 23.

[0049] With the above arrangement, when it is necessary to disassemble the left end face of the front left handle shell 7 from the fixing block 2, the front left handle shell 7 is moved forward so that the front groove 21 is moved forward and no longer covers the middle part of the fixing block 2; when it is necessary to disassemble the left end face of the rear handle shell 9 from the fixing block 2, the fixing block 2 is moved forward so that the middle part of the fixing block 2 is moved forward and separated from the rear groove 22; when it is necessary to detachably connect the left end face of the rear handle shell 9 from the fixing block 2, the fixing block 2 is placed on the rear handle The left end face of the front left handle shell 9 is placed in front of the fixing block 2 so that the middle part of the fixing block 2 is aligned with the rear groove 22, and then the fixing block 2 is moved backward so that the middle part of the fixing block 2 is moved backward and embedded in the rear groove 22. When the left end face of the front left handle shell 7 needs to be detachably connected to the fixing block 2, the left end face of the front left handle shell 7 is placed in front of the fixing block 2 so that the front groove 21 is aligned with the middle part of the fixing block 2, and then the front left handle shell 7 is moved backward so that the front groove 21 is moved backward and covers the middle part of the fixing block 2.

[0050] The cross-section of the front groove 21 and the cross-section of the rear groove 22 may have any suitable shape, see Figure 4 As shown, in a specific embodiment of the present invention, the cross-section of the front groove 21 is an isosceles trapezoidal shape that is thin at the front and thick at the back. The cross-section of the front groove 21 is symmetrical with the cross-section of the rear groove 22, so that Figure 4 and Figure 7 As shown, the cross-sectional shape of the limiting hole 23 and the cross-sectional shape of the middle portion of the fixing block 2 are both front-to-back symmetrical hexagonal shapes.

[0051] The right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are detachably connected and can adopt any suitable structure. Figure 3 As shown, in a specific embodiment of the present utility model, the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are snap-connected.

[0052] The right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are connected by clamping, and any suitable structure can be adopted. Figure 3 , Figure 5 , Figure 8 and Fig. 9 As shown, in a specific embodiment of the utility model, the plasma surgical device with replaceable curved electrodes further includes a first sleeve 26 and a first elastic hook 27, the left side of the side wall of the first sleeve 26 is respectively provided with a first front clamping hole 30 and a first rear clamping hole 31 along the left and right directions, the first front clamping hole 30 and the first rear clamping hole 31 are arranged at intervals from front to back, the first elastic hook 27 includes a first front elastic rod 32 and a first rear elastic rod 33, the left end of the first front elastic rod 32 is connected to the left end of the first rear elastic rod 33 to form the first elastic hook 27, the right end of the first front elastic rod 32 is extended toward the right front, then extended forward and then extended to the left, the right end of the first rear elastic rod 33 is extended toward the right rear, then extended backward and then extended to the left, the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are respectively connected to the left end of the first elastic hook 27 and the first sleeve 26, the right end of the first front elastic rod 32 and the right end of the first rear elastic rod 33 are hooked with the first front clamping hole 30 and the first rear clamping hole 31 respectively.

[0053] With the above arrangement, when it is necessary to disassemble the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12, the first elastic hook 27 is slightly moved to the right, and then the front side of the first front elastic rod 32 and the rear side of the first rear elastic rod 33 of the first elastic hook 27 are pinched respectively and force is applied inward to cause elastic deformation, so that the right end of the first front elastic rod 32 and the right end of the first rear elastic rod 33 are brought together front and back, and the first front clamping hole 30 and the first rear clamping hole 31 are no longer hooked respectively, and then the first elastic hook 27 is moved to the left, so that the right end of the first front elastic rod 32 and the right end of the first rear elastic rod 33 are moved to the left to exit the first front clamping hole 30 and the first rear clamping hole 31 respectively; when it is necessary to detachably connect the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12, the first elastic hook 27 is placed on the left side of the first sleeve 26. Then, the first elastic hook 27 is moved to the right, so that the right ends of the first front elastic rod 32 and the right ends of the first rear elastic rod 33 are moved to the right and pass through the first front clamping hole 30 and the first rear clamping hole 31 respectively and are located in the first sleeve 26, and then the first front elastic rod 32 and the first rear elastic rod 33 are released, and the first front elastic rod 32 and the first rear elastic rod 33 are moved away from each other front and back under the action of elastic force, and then the first elastic hook 27 is slightly moved to the left, so that the right ends of the first front elastic rod 32 and the right ends of the first rear elastic rod 33 are hooked with the first front clamping hole 30 and the first rear clamping hole 31 respectively.

[0054] The right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are detachably connected and can adopt any suitable structure. Figure 3 As shown, in a specific embodiment of the present utility model, the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are snap-connected.

[0055] The right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are connected by clamping, and any suitable structure can be adopted. Figure 3As shown, in a specific embodiment of the utility model, the plasma surgical device with replaceable curved electrodes further includes a second sleeve 34 and a second elastic hook 35, the left side of the side wall of the second sleeve 34 is respectively provided with a second front clamping hole (not shown in the figure) and a second rear clamping hole (not shown in the figure) along the left and right directions, the second front clamping hole and the second rear clamping hole are arranged at intervals from front to back, the second elastic hook 35 includes a second front elastic rod (not shown in the figure) and a second rear elastic rod (not shown in the figure), the left end of the second front elastic rod is connected to the second rear elastic rod The left end forms the left end of the second elastic hook 35, the right end of the second front elastic rod is extended toward the right front, then extended forward and then extended to the left, the right end of the second rear elastic rod is extended toward the right rear, then extended backward and then extended to the left, the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are respectively connected to the left end of the second elastic hook 35 and the second sleeve 34, the right end of the second front elastic rod and the right end of the second rear elastic rod are respectively hooked with the second front clamping hole and the second rear clamping hole.

[0056] With the above arrangement, when it is necessary to disassemble the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14, the second elastic hook 35 is slightly moved to the right, and then the front side of the second front elastic rod and the rear side of the second rear elastic rod of the second elastic hook 35 are pinched respectively and force is applied inward to cause elastic deformation, so that the right end of the second front elastic rod and the right end of the second rear elastic rod are brought together front and back, and the second front clamping hole and the second rear clamping hole are no longer hooked respectively, and then the second elastic hook 35 is moved to the left, so that the right end of the second front elastic rod and the right end of the second rear elastic rod are moved to the left to exit the second front clamping hole and the second rear clamping hole respectively; when it is necessary to detachably connect the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14, the second elastic hook 35 is placed in the The left side of the second sleeve 34 is used to pinch the front side of the second front elastic rod and the rear side of the second rear elastic rod and apply force inward to cause them to deform elastically, so that the right end of the second front elastic rod and the right end of the second rear elastic rod are brought together front and back and aligned with the second front clamping hole and the second rear clamping hole respectively, and then the second elastic hook 35 is moved to the right, so that the right end of the second front elastic rod and the right end of the second rear elastic rod are moved to the right and pass through the second front clamping hole and the second rear clamping hole respectively and are located in the second sleeve 34, and then the second front elastic rod and the second rear elastic rod are released, and the second front elastic rod and the second rear elastic rod are moved away from each other front and back under the action of elastic force, and then the second elastic hook 35 is slightly moved to the left, so that the right end of the second front elastic rod and the right end of the second rear elastic rod are hooked with the second front clamping hole and the second rear clamping hole respectively.

[0057] The right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are detachably connected and can adopt any suitable structure. Figure 3 As shown, in a specific embodiment of the present utility model, the right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are snap-connected.

[0058] The right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are connected by clamping, and any suitable structure can be adopted. Figure 3As shown, in a specific embodiment of the utility model, the plasma surgical device with replaceable curved electrodes further includes a third sleeve 36 and a third elastic hook 37, the left side of the side wall of the third sleeve 36 is respectively provided with a third front clamping hole and a third rear clamping hole along the left and right directions, the third front clamping hole and the third rear clamping hole are arranged at intervals from front to back, the third elastic hook 37 includes a third front elastic rod and a third rear elastic rod, the left end of the third front elastic rod is connected to the left end of the third rear elastic rod to form the left end of the third elastic hook 37, the right end of the third front elastic rod is extended toward the right front, then extended forward and then extended to the left, the right end of the third rear elastic rod is extended toward the right rear, then extended backward and then extended to the left, the right end of the emitter electrode wire electrode segment and the left end of the emitter electrode wire handle segment are respectively connected to the left end of the third elastic hook 37 and the third sleeve 36, the right end of the third front elastic rod and the right end of the third rear elastic rod are respectively hooked with the third front clamping hole and the third rear clamping hole.

[0059] With the above arrangement, when it is necessary to disassemble the right end of the emitter electrode wire electrode segment 15 and the left end of the emitter electrode wire handle segment 16, the third elastic hook 37 is slightly moved to the right, and then the front side of the third front elastic rod and the rear side of the third rear elastic rod of the third elastic hook 37 are pinched respectively and force is applied inward to cause elastic deformation, so that the right end of the third front elastic rod and the right end of the third rear elastic rod are brought together front and back, and the third front clamping hole and the third rear clamping hole are no longer hooked respectively, and then the third elastic hook 37 is moved to the left, so that the right end of the third front elastic rod and the right end of the third rear elastic rod are moved to the left to exit the third front clamping hole and the third rear clamping hole respectively; when it is necessary to detachably connect the right end of the emitter electrode wire electrode segment 15 and the left end of the emitter electrode wire handle segment 16, the third elastic hook 37 is placed in the The left side of the third sleeve 36 pinches the front side of the third front elastic rod and the rear side of the third rear elastic rod respectively and applies force inward to cause them to be elastically deformed, so that the right end of the third front elastic rod and the right end of the third rear elastic rod are brought together front and back and aligned with the third front clamping hole and the third rear clamping hole respectively, and then the third elastic hook 37 is moved to the right, so that the right end of the third front elastic rod and the right end of the third rear elastic rod are moved to the right and pass through the third front clamping hole and the third rear clamping hole respectively and are located in the third sleeve 36, and then the third front elastic rod and the third rear elastic rod are released, and the third front elastic rod and the third rear elastic rod are moved away from each other front and back under the action of elastic force, and then the third elastic hook 37 is slightly moved to the left, so that the right end of the third front elastic rod and the right end of the third rear elastic rod are hooked with the third front clamping hole and the third rear clamping hole respectively.

[0060] The plasma surgical device with replaceable curved electrodes may also include any other suitable components, see Figure 3 As shown, in a specific embodiment of the utility model, the plasma surgical device with replaceable curved electrodes also includes a first partition 28 and a second partition 29, the first partition 28 and the second partition 29 are both horizontally arranged and arranged along the left-right direction and spaced apart from each other up and down, the first partition 28 and the second partition 29 are both located in front of the side wall of the handle inner cavity 10 facing the front left handle shell 7 (that is, the front side wall of the left end of the rear handle shell 9) and are both connected to the side wall of the handle inner cavity 10 facing the front left handle shell 7, the connection position of the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 is located on the first partition 28, the connection position of the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 is located under the second partition 29, and the connection position of the right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 is located between the first partition 28 and the second partition 29. When the curved electrode replaceable plasma surgical device further includes a first sleeve 26, a first elastic hook 27, a second sleeve 34, a second elastic hook 35, a third sleeve 36 and a third elastic hook 37, the first sleeve 26 and the first elastic hook 27 are both located on the first partition 28, the second sleeve 34 and the second elastic hook 35 are both located under the second partition 29, and the third sleeve 36 and the third elastic hook 37 are both located between the first partition 28 and the second partition 29.

[0061] The handle 3 may have any suitable shape, see Figure 1-2 and Figure 5 As shown, in a specific embodiment of the utility model, the handle 3 is arc-shaped, and the right end of the handle 3 is extended in an arc shape from the left end of the handle 3 to the right and downward. In this case, the front left handle shell 7 is straight, and the right end of the front left handle shell 7 is extended in a straight line to the right from the left end of the front left handle shell 7. The front right handle shell 8 and the rear handle shell 9 are both arc-shaped, and the right end of the front right handle shell 8 is extended in an arc shape from the left end of the front right handle shell 8 to the right and downward. The right end of the rear handle shell 9 is extended in an arc shape from the left end of the rear handle shell 9 to the right and downward.

[0062] When the utility model is used and a new bending electrode 1 needs to be replaced, the front left handle shell 7 is disassembled from the left end of the rear handle shell 9, the end face of the left end of the front left handle shell 7 is disassembled from the fixing block 2, the right end of the first traction wire electrode segment 11 and the left end of the first traction wire handle segment 12 are disassembled, the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are disassembled, the right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are disassembled, and the end face of the left end of the rear handle shell 9 is disassembled from the fixing block 2, and the old bending electrode 1 can be removed and discarded. The new fixing block 2 installed on the new bending electrode 1 is detachably connected to the end face of the left end of the rear handle shell 9, the right end of the first traction wire electrode segment 11 and the first traction wire handle segment 12 are detachably connected, the right end of the second traction wire electrode segment 13 and the left end of the second traction wire handle segment 14 are detachably connected, the right end of the transmitting electrode wire electrode segment 15 and the left end of the transmitting electrode wire handle segment 16 are detachably connected, the end face of the left end of the front left handle shell 7 is detachably connected to the fixing block 2, and the front left handle shell 7 is detachably connected to the left end of the rear handle shell 9. At this point, the replacement of the bending electrode 1 is completed.

[0063] Therefore, the utility model essentially designs the non-detachable handle shell of the existing plasma surgical device to be detachable, and designs the entire first traction wire, the entire second traction wire and the entire emission electrode wire of the existing plasma surgical device to be detachable. Compared with the prior art, the utility model has the following beneficial effects:

[0064] 1. Removable design: the front left handle shell of the utility model is detachably connected to the left end of the rear handle shell, the fixed block is detachably arranged between the end face of the left end of the front left handle shell and the end face of the left end of the rear handle shell, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are detachably connected, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are detachably connected, the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are detachably connected, so that the bending electrode is detachable and replaceable.

[0065] 2. Anti-rotation limit design: The middle part of the fixed block of the utility model is located in the limit hole and the middle part of the fixed block is limited to rotate around the left and right directions through the limit hole. The left and right ends of the fixed block are respectively provided with a left lateral convex portion and a right lateral convex portion. The left lateral convex portion and the right lateral convex portion are respectively located on the left and right sides of the limit hole and both abut against the limit hole. Therefore, the middle part of the fixed block cannot rotate around the left and right directions, nor can it move left and right, thereby limiting the position of the bent electrode and preventing the bent electrode from spinning in the working state.

[0066] 3. Sealing performance design: The sealing ring of the utility model is located between the left ends of the front left handle shell and the rear handle shell and between the front left handle shell and the front right handle shell, and is connected to the front left handle shell and respectively abuts against the left end of the rear handle shell and the front right handle shell to prevent liquid from entering the handle inner cavity from the installation gap.

[0067] 4. Simplified design: The right end of the first traction wire electrode segment and the left end of the first traction wire handle segment, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment, as well as the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment of the utility model all adopt a simple hook and hole matching form, which has a simple structure and is convenient for actual on-site operation.

[0068] 5. Electrical isolation design: Two partitions are arranged along the left and right directions on the side wall of the handle inner cavity facing the front left handle shell to separate the three groups of sleeve hooks to achieve electrical isolation and prevent short circuit.

[0069] Therefore, the utility model adopts a detachable design of the curved electrode and the handle, and the curved electrode part can be disassembled and replaced, thereby avoiding waste of the handle and the electrode connecting wire connected to the handle.

[0070] In summary, the curved electrode of the plasma surgical device with replaceable curved electrodes of the utility model is replaceable, thereby saving resources and reducing costs. It has a clever design, a simple structure, and easy replacement of the curved electrodes, and is suitable for large-scale promotion and application.

[0071] It can be seen that the purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods can be modified arbitrarily. Therefore, the utility model includes all modified implementation methods based on the spirit and scope of the claims.

Claims

1. A plasma surgical device with a replaceable curved electrode, comprising a curved electrode, a fixed block, a handle, a first traction wire, a second traction wire and a transmitting electrode wire, wherein the curved electrode, the fixed block, the first traction wire, the second traction wire and the transmitting electrode wire are all arranged along the left-right direction, the left end of the curved electrode is a transmitting head end, the right end of the curved electrode is plugged into the fixed block along the left-right direction and exposed on the right side of the fixed block, the handle is arranged vertically and along the left-right direction, and is characterized in that: The handle comprises a front left handle shell, a front right handle shell and a rear handle shell, the front left handle shell, the front right handle shell and the rear handle shell are all arranged vertically and along the left-right direction, the front left handle shell is located in front of the left end of the rear handle shell and is detachably connected to the left end of the rear handle shell, the front right handle shell is located in front of the rear handle shell and is connected to the rear handle shell, the front left handle shell is located on the left side of the front right handle shell and abuts against the front right handle shell, so as to form a handle inner cavity between the front left handle shell, the front right handle shell and the rear handle shell; The first traction wire includes a first traction wire electrode segment and a first traction wire handle segment, the second traction wire includes a second traction wire electrode segment and a second traction wire handle segment, the transmitting electrode wire includes a transmitting electrode wire electrode segment and a transmitting electrode wire handle segment, the first traction wire electrode segment, the second traction wire electrode segment and the transmitting electrode wire electrode segment are all arranged in the curved electrode, the right end of the first traction wire electrode segment, the right end of the second traction wire electrode segment and the right end of the transmitting electrode wire electrode segment are all exposed to the right side of the right end of the curved electrode, the first traction wire handle segment, the second traction wire handle segment and the transmitting electrode wire handle segment are all arranged in the handle inner cavity, and the fixing block is detachably arranged on the left side of the front left handle shell. The right end of the bending electrode, the right end of the first traction wire electrode segment, the right end of the second traction wire electrode segment, the right end of the transmitting electrode wire electrode segment, the left end of the first traction wire handle segment, the left end of the second traction wire handle segment and the left end of the transmitting electrode wire handle segment are all located between the front left handle shell and the left end of the rear handle shell, the right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are detachably connected, the right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are detachably connected, and the right end of the transmitting electrode wire electrode segment and the left end of the transmitting electrode wire handle segment are detachably connected.

2. The plasma surgical device with replaceable curved electrodes as claimed in claim 1, characterized in that: The front left handle shell is snap-connected to the left end of the rear handle shell.

3. The plasma surgical device with replaceable curved electrodes as claimed in claim 2, characterized in that: The upper and lower sides of the front side surface of the left end of the rear handle shell are respectively provided with an upper card slot and a lower card slot, and the upper and lower sides of the rear side surface of the front left handle shell are respectively extended backward to form an upper card block and a lower card block, and the upper card block and the lower card block are respectively clamped in the upper card slot and the lower card slot.

4. The plasma surgical device with replaceable curved electrodes as claimed in claim 1, characterized in that: The end surface of the left end of the front left handle shell and the end surface of the left end of the rear handle shell are respectively provided with a front groove and a rear groove along the left and right directions, and the front groove and the rear groove are arranged relatively front to back to form a limiting hole, the middle part of the fixing block is located in the limiting hole and the middle part of the fixing block is limited by the limiting hole to rotate around the left and right directions, the middle part of the fixing block is movably embedded in the rear groove along the front and back directions, and the front groove is movably covered on the middle part of the fixing block along the front and back directions, the left end and the right end of the fixing block are respectively provided with a left lateral protrusion and a right lateral protrusion, the left lateral protrusion and the right lateral protrusion are respectively located on the left and right sides of the limiting hole and both abut against the limiting hole.

5. The plasma surgical device with replaceable curved electrodes as claimed in claim 1, characterized in that: The right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are snap-connected.

6. The plasma surgical device with replaceable curved electrodes as claimed in claim 5, characterized in that: The plasma surgical device with replaceable curved electrodes also includes a first sleeve and a first elastic hook. The left side of the side wall of the first sleeve is respectively provided with a first front hook hole and a first rear hook hole along the left and right directions. The first front hook hole and the first rear hook hole are spaced apart from each other front to back. The first elastic hook includes a first front elastic rod and a first rear elastic rod. The left end of the first front elastic rod is connected to the left end of the first rear elastic rod to form the left end of the first elastic hook. The right end of the first front elastic rod is extended toward the right front, then extended forward and then extended to the left. The right end of the first rear elastic rod is extended toward the right rear, then extended backward and then extended to the left. The right end of the first traction wire electrode segment and the left end of the first traction wire handle segment are respectively connected to the left end of the first elastic hook and the first sleeve. The right end of the first front elastic rod and the right end of the first rear elastic rod are respectively hooked with the first front hook hole and the first rear hook hole.

7. The plasma surgical device with replaceable curved electrodes as claimed in claim 1, characterized in that: The right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are connected by snapping.

8. The plasma surgical device with replaceable curved electrodes as claimed in claim 7, characterized in that: The plasma surgical device with replaceable curved electrodes also includes a second sleeve and a second elastic hook. The left side of the side wall of the second sleeve is respectively provided with a second front hook hole and a second rear hook hole along the left and right directions. The second front hook hole and the second rear hook hole are spaced apart from each other front to back. The second elastic hook includes a second front elastic rod and a second rear elastic rod. The left end of the second front elastic rod is connected to the left end of the second rear elastic rod to form the left end of the second elastic hook. The right end of the second front elastic rod is extended toward the right front, then extended forward and then extended to the left. The right end of the second rear elastic rod is extended toward the right rear, then extended backward and then extended to the left. The right end of the second traction wire electrode segment and the left end of the second traction wire handle segment are respectively connected to the left end of the second elastic hook and the second sleeve. The right end of the second front elastic rod and the right end of the second rear elastic rod are respectively hooked with the second front hook hole and the second rear hook hole.

9. The plasma surgical device with replaceable curved electrodes as claimed in claim 1, characterized in that: The right end of the electrode segment of the transmitting electrode wire and the left end of the handle segment of the transmitting electrode wire are connected by clamping.

10. The plasma surgical device with replaceable curved electrodes as claimed in claim 9, characterized in that: The plasma surgical device with replaceable curved electrodes also includes a third sleeve and a third elastic hook. The left side of the side wall of the third sleeve is respectively provided with a third front clamping hole and a third rear clamping hole along the left and right directions. The third front clamping hole and the third rear clamping hole are arranged at intervals from front to back. The third elastic hook includes a third front elastic rod and a third rear elastic rod. The left end of the third front elastic rod is connected to the left end of the third rear elastic rod to form the left end of the third elastic hook. The right end of the third front elastic rod is extended toward the right front, then extended forward and then extended to the left. The right end of the third rear elastic rod is extended toward the right rear, then extended backward and then extended to the left. The right end of the emitter electrode wire electrode segment and the left end of the emitter electrode wire handle segment are respectively connected to the left end of the third elastic hook and the third sleeve. The right end of the third front elastic rod and the right end of the third rear elastic rod are respectively hooked with the third front clamping hole and the third rear clamping hole.

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