CN110742684A - Safe type plasma operation electrode - Google Patents
Safe type plasma operation electrode Download PDFInfo
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- CN110742684A CN110742684A CN201911119681.2A CN201911119681A CN110742684A CN 110742684 A CN110742684 A CN 110742684A CN 201911119681 A CN201911119681 A CN 201911119681A CN 110742684 A CN110742684 A CN 110742684A
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- 230000005284 excitation Effects 0.000 claims abstract description 51
- 238000005452 bending Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000012212 insulator Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 230000006378 damage Effects 0.000 description 10
- 239000002699 waste material Substances 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000002504 physiological saline solution Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
- A61B2018/00583—Coblation, i.e. ablation using a cold plasma
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
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- Health & Medical Sciences (AREA)
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- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention belongs to the technical field of medical instruments, and discloses a safe plasma operation electrode which comprises a working electrode and a loop electrode, wherein the working electrode and the loop electrode are powered by cables and are isolated by an insulating seat; the end surface part is provided with an exciting sheet in a hole opening mode; the excitation sheet comprises an outer excitation sheet, the outer excitation sheet is arranged to be a structure with the width gradually narrowed from the bottom of the end face part to the side part, and the width of the bending part is larger than the width of the bottom of the excitation sheet. The invention solves the technical problems that the prior flaky electrode can be disconnected from the electrode or even integrally disconnected to fall into the human body, thereby affecting the operation efficiency and harming the human body, and has the characteristics of safer use, longer service life and the like.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a plasma surgical electrode.
Background
The radio frequency plasma surgical system is a new generation of low-temperature plasma surgical system, can be used for soft tissue dissection, excision, ablation, hemostasis and drying of surgical operations, and is also provided with various electrodes with different shapes, outer diameters, curvatures and lengths suitable for different professional departments. The existing plasma scalpel has very high operation risk, and the sheet electrode is easy to break and fall into the body of a patient. The structural design of the existing sheet electrode has the defects that the electrode can be disconnected from the middle of the sheet electrode and even integrally disconnected, and is not easy to be taken out of a human body and harm the human body. The service life of the surgical instrument can not meet the requirement of complex operations which need a long time. And the second part of the operation channel is very small, so that a plasma scalpel which is safer, has longer service life and more compact and compact structure is clinically needed at present.
Disclosure of Invention
The invention aims to: the safe plasma operation electrode is provided to solve the technical problems that the operation efficiency is influenced and the human body is harmed because the existing sheet electrode is disconnected from the electrode or even integrally disconnected and falls into the human body, and has the characteristics of safer use, longer service life and the like.
The technical scheme adopted by the invention is as follows:
a safety plasma operation electrode comprises a working electrode and a loop electrode which are powered by a cable, wherein the working electrode and the loop electrode are isolated by an insulating seat, and the working electrode comprises a sheet-shaped end surface part and a bent part; the end surface part is provided with an exciting sheet in a hole opening mode; the excitation sheet comprises an outer excitation sheet, the outer excitation sheet is arranged to be a structure with the width gradually narrowed from the bottom of the end face part to the side part, and the width of the bending part is larger than the width of the bottom of the excitation sheet.
Further, the tab includes an outer tab configured to have an outer profile width from a top of the end surface portion that is less than an outer profile width of a bottom and side portions of the end surface portion.
Preferably, the outer exciting sheet forms an outer contour of an end surface portion of either a "C" shape rotated by 90 ° clockwise, a "D" shape rotated by 90 ° counterclockwise, a circular shape or an elliptical shape.
Further, the exciting sheet also comprises an inner exciting sheet (i.e. the exciting sheet is arranged in the outline of the outer exciting sheet by a way of opening, and the inner exciting sheet is arranged in a structure with a gradually narrowing width from the bottom to the top of the end surface part (i.e. the part far away from the bending part).
Furthermore, the inner exciting sheet is in a shape of a straight line, the upper end and the lower end of the inner exciting sheet are connected between the bottom and the top of the outer exciting sheet, and a gap is arranged on the outer side of the joint of the upper end of the inner exciting sheet and the outer exciting sheet.
Preferably, the notch is a "V" shaped notch.
Further, the opening edge of breach is equipped with the radius angle, and is preferred, can all set up the radius angle with its all positions, and the bottom of "V" shape breach also can set up the radius angle promptly.
Furthermore, the inner side of the hole is provided with a fillet.
Further, the distance between the top of the end surface part and the circuit pole is smaller than the distance between the bottom of the end surface part and the circuit pole.
Preferably, the end surface portion and the return electrode form an included angle of 3 ° to 10 °.
Further, the width of the exciting sheet at the side part of the end surface part is larger than that at the top part of the end surface part.
Furthermore, a water outlet hole communicated with the water outlet channel is formed in the loop electrode.
Furthermore, a water suction hole communicated with the water suction channel is formed in the insulating base.
Further, the loop pole is bent.
In summary, compared with the prior art, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the main improvement point of the invention is that the structure of the working electrode is designed into a sheet-shaped end surface part and a bending part, the end surface part is arranged into an exciting sheet (namely the end surface part left after the opening) by a mode of opening, the outer exciting sheet is further arranged into a structure with the width gradually narrowed from the bottom part to the side part of the end surface part, and the width of the bending part is larger than the width of the bottom part of the exciting sheet (namely the width D3 of the bending part is larger than the width D2 of the bottom part D2 of the exciting sheet is larger than the width D1 of the exciting sheet). Compared with the prior art, the sheet electrode is broken from the sheet electrode or even broken integrally, the top of the outer excitation sheet is easier to melt by using the energy of plasma due to the structural design, the first melting part is changed into the top of the outer excitation sheet, and the outer excitation sheet cannot be broken from the middle or the bottom and fall into a human body, so that the phenomenon that a large piece of working electrode material falls into the human body after being melted in an operation and is difficult to take out is avoided. In addition, through repeated tests, in the melting process, the working electrode still can generate plasma and can work continuously, after a common operation is completed, the melted part is only the top of the excitation sheet and a small part nearby at most, the operation is not affected completely, and meanwhile, the excitation sheet can not fall from the middle or even wholly fall even if the excitation sheet is used for a longer time, so that the safety is higher, the effect is better, and the service life is longer. Therefore, the invention solves the technical problems that the prior flaky electrode can be disconnected from the electrode or even be integrally disconnected to fall into the human body, thereby affecting the operation efficiency and harming the human body, and has the characteristics of safer use, longer service life and the like. Regarding the creativity: since the above technical effects are achieved without prior art disclosing the above specific structural design and without solving the same technical problems with the same structural design, the prior art does not give technical advice to a person skilled in the art to design the above specific structure, and therefore the present application is not obvious compared to the prior art and meets the specified inventive requirements.
2. Further, the present invention configures the outer exciting sheet to have an outer contour width from the top of the end surface portion smaller than the outer contour width of the bottom and side portions of the end surface portion. The structure can greatly reduce the volume of the top of the exciting sheet, so that the exciting sheet is easier to melt, and is not dropped into a human body after being melted in the prior art, thereby further reducing the harm of the operation to the human body.
3. Further, the invention sets the outer exciting sheet to be any one of the end surface external contour of C shape rotated by 90 degrees clockwise, D shape rotated by 90 degrees anticlockwise, round shape or oval shape. The structure has the characteristic of axial symmetry (note: the bottom part in the text refers to the part of the end face part used for connecting the bent part, the side part in the text refers to the part except the part of the end face part used for connecting the bent part, and the parts on the two sides of the symmetrical shaft are corresponding parts under the asymmetric condition), and simultaneously has the characteristic of smaller volume of the top of the exciting sheet, so that the exciting sheet is easier to melt, and does not fall into a human body after being melted in the prior art, thereby further reducing the harm of the operation to the human body.
4. Furthermore, the invention also comprises an inner exciting sheet, and the inner exciting sheet is arranged in a structure with gradually narrowing width from the bottom to the top of the end surface part. This structure can generate plasma also in the end face portion of the sheet, and is more favorable for cutting.
5. Furthermore, the inner exciting sheet is arranged in a straight line shape, the upper end and the lower end of the inner exciting sheet are connected between the bottom and the top of the outer exciting sheet, and a gap is arranged on the outer side of the joint of the upper end of the inner exciting sheet and the outer exciting sheet. The structure enables the width of the top of the external excitation sheet to be reduced, compared with the scheme, the external excitation sheet is easier to melt, the sheet-shaped electrode is prevented from being disconnected from the external excitation sheet or even being integrally disconnected from the external excitation sheet and falling into a human body, after a general operation is finished, the melted part is only the top of the excitation sheet and a small part nearby the excitation sheet at most, the operation is not influenced completely, the harm of the operation to the human body is further reduced, and the safety is higher; even if the device is used for a longer time, the device cannot fall from the middle or even wholly, the safety is higher, the effect is better, and the service life is longer. Meanwhile, the structure enables the top of the outer exciting sheet to generate stronger plasma, so that the cutting is sharper and the effect is better.
6. Furthermore, the notch is arranged to be a V-shaped notch, so that the safety can be ensured, and the attractiveness can be improved.
7. Furthermore, the opening edge of the notch is provided with the fillet, so that relatively uniform plasma can be generated, and the cutting effect is better.
8. Furthermore, as above, the inner side of the hole is provided with the fillet, so that relatively more uniform plasma can be generated, and the cutting effect is better.
9. In a further scheme of the invention, the distance between the top of the end surface part and the loop pole is smaller than the distance between the bottom of the end surface part and the loop pole, so that the top of the end surface part can generate plasma earlier, the top of the end surface part is also favorable for generating stronger plasma, the top of the end surface part is easier to melt, the sheet-shaped electrode can be prevented from being disconnected or even integrally disconnected from the top of the end surface part to fall into a human body, the harm of the operation to the human body is further reduced, and the safety is higher.
10. The included angle between the end face part and the return circuit pole is set to be 3-10 degrees, so that the top of the end face part can generate plasma earlier, the top of the end face part is also favorable for generating stronger plasma, the top of the end face part is easier to melt, the flaky electrodes can be prevented from being disconnected from the top of the end face part or even being integrally disconnected and falling into a human body, and the cutting effect is better, and the safety is higher.
11. Furthermore, the width of the exciting sheet at the side part of the end surface part is set to be larger than that of the exciting sheet at the top part of the end surface part, so that the melting of the top part of the end surface part is facilitated, the flaky electrode can be prevented from being broken off or even broken integrally from the top part to fall into a human body, the harm of the operation to the human body is further reduced, and the safety is higher.
12. Furthermore, the loop electrode is provided with the water outlet hole communicated with the water outlet channel, so that the physiological saline can be conveniently input directly through the operation electrode, and the electrode is matched to generate plasma on the working electrode for performing an operation without independently inputting the physiological saline by other instruments.
13. Furthermore, the water absorption holes communicated with the water absorption channel are arranged in the insulating base, the function of the water absorption holes is that waste tissues, melted excitation sheets, physiological saline and other wastes can be conveniently absorbed away by matching with a suction device through the operation electrode directly, other instruments are not needed to establish the suction channel independently, and more importantly, the potential safety hazard brought to the human body due to the fact that the melted excitation sheets and other wastes remain in the human body is further reduced.
14. Furthermore, the loop pole is arranged to be bent, so that the surgical operation is facilitated.
Drawings
Figure 1 is a schematic view of the external structure of the electrode head portion of the present invention.
Figure 2 is a cross-sectional view of the electrode head portion of the present invention.
Figure 3 is an enlarged partial view of the electrode head portion of the present invention.
Fig. 4 is a schematic view of the overall structure of the present invention.
Detailed Description
All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, the safety plasma surgical electrode disclosed by the invention comprises a handle 4, a cable 6 for supplying power is arranged at the proximal end of the handle 4, the distal end of the handle 4 is connected with an insulating base 3 through a cutter bar 5 serving as a loop pole 2, and a working pole 1 isolated from the loop pole 2 is arranged on the insulating base 3; the working electrode 1, the insulating seat 3 and the loop electrode 2 form an electrode tip, the working electrode 1 and the loop electrode 2 are respectively electrically connected to the cable 6, the working electrode 1 comprises a sheet-shaped end surface part 11 and a bent part 12, and the end surface part 11 is arranged on the end surface of the insulating seat 3; the end surface part 11 is arranged as an excitation sheet 111 (i.e. an excitation component of plasma) by means of the opening 1113; the tab 111 includes an outer tab 1111, the outer tab 1111 is configured to have a gradually narrowing width from the bottom of the end surface 11 (i.e. the portion close to the bending portion 12) to the side, and the width of the bending portion 12 is greater than the width of the bottom of the tab 111 (i.e. the width of the bending portion D3> the tab bottom D2> the tab side D1).
Preferably, the width of the bend D3> the tab bottom D2> the tab side D1, wherein 0.5mm < the width of the bend D3<1.2 mm; the size chain greatly prolongs the service life of the operation electrode, meets the requirement of the current clinical complex long-time operation, and the service life of the current similar operation electrode is about 20-30 minutes, and the service time of the invention can reach 40-50 minutes.
Note: the width referred to herein is the thickness of the various components of the excitation sheet 111, and not the overall outer profile of the outer excitation sheet 1111, which is individually indicated.
Preferably, the exterior of the blade bar 5 is covered with an insulating layer 51 (exposed portion of the circuit pole 2, i.e., the blade bar 5) and is provided in a bent structure. The bending structure of the tool bar 5 includes two parts, one is a first bending part close to the handle 4, and the other is a circuit pole 2 part (i.e. a second bending structure) exposed by the tool bar 5. The structure is suitable for surgical operation, so that the surgical operation is more convenient. The external diameter D4 of the knife bar 5 can be less than 4mm (the size of the knife bar can be changed to adapt to the operation requirements of different departments, but the external diameters of the insulating seat 3 and the working electrode 1 are both less than the external diameter of the knife bar 5), and the knife bar has a more compact and compact structure on the premise of not sacrificing all technical indexes of the operation electrode, can be used for operations with small partial operation channels, and provides a larger operation space and an operation visual field for an operator.
Preferably, the insulating base 3 is provided with a mounting hole, the mounting hole can be arranged on the end face of the insulating base 3, the bending portion 12 of the working electrode 1 extends into the mounting hole (and can extend into the water absorption channel 31), and is electrically connected with the cable 6 through a wire, and the electric connection portion of the wire and the cable 6 is subjected to insulation treatment in a manner of wrapping a heat shrink tube, gluing and the like. The loop electrode 2 is also electrically connected to the cable 6, and is insulated by wrapping a heat shrinkable tube and applying glue.
The tab 111 includes an outer tab 1111, the outer tab 1111 being configured to have an outer profile width from the top of the end surface 11 less than the outer profile width of the bottom and side portions of the end surface 11.
Preferably, the outer tab 1111 is formed in a C shape rotated 90 ° clockwise and a D shape rotated 90 ° counterclockwise (similar to the C shape rotated 90 ° clockwise).
Preferably, the inner side of the hole 1113 is provided with a rounded corner 1115, which can generate relatively more uniform plasma and has better cutting effect.
The loop pole 2 is made of a metal pipe, and the insulating base 3 can be fixed on the pipe orifice of the loop pole 2 in a gluing mode and the like.
In use, the invention is connected to a plasma generator through a cable 6, and operations such as switching and gear selection are performed on the plasma generator and other equipment. The normal saline flows out from the water outlet hole 22, the loop electrode 2 and the working electrode 1 are conducted and form an ionic state, a highly gasified plasma thin layer is formed at the working electrode 1, the plasma thin layer has enough energy to crush molecular chains of human wound tissues in contact with the working electrode 1, the generated temperature is between 40 ℃ and 70 ℃, pathological change tissues are conveniently and safely cut, damage to surrounding normal tissues is small, the plasma thin layer has extremely high oxidation effect, and bacteria on the surfaces of the wounds can be killed.
By adopting the structure, the top of the external excitation sheet is easier to melt by using the energy of plasma, and the first melted part is changed into the top of the external excitation sheet and cannot be disconnected from the middle or the bottom to fall into a human body, so that the fused part is prevented from falling into the human body in an operation. In addition, repeated tests show that the working electrode still can generate plasma in the melting process and can work continuously, and after a general operation is finished, the melted part is only the top of the excitation sheet and a small part near the excitation sheet at most, so that the operation is not influenced at all. Therefore, the invention solves the technical problems that the prior flaky electrode can be disconnected from the electrode or even be integrally disconnected to fall into the human body, thereby affecting the operation efficiency and harming the human body, and has the characteristics of safer use, longer service life and the like.
Furthermore, the loop pole 2 is provided with a water outlet 22 communicated with the water outlet channel 21, and the water outlet channel 21 is established by a liquid conveying pipe 23. The insulating base 3 is internally provided with a water suction hole 32 communicated with a water suction channel 31, and the water suction channel 31 is formed by establishing a suction tube 33. The function is that the normal saline can be conveniently input directly through the operation electrode, and the electrode is matched to generate plasma at the working electrode for operation without independently inputting the normal saline by other instruments; and the waste such as waste tissue, the melted excitation sheet, physiological saline and the like can be conveniently pumped away by directly matching with the suction device through the operation electrode without independently establishing a suction channel by other instruments, and more importantly, the potential safety hazard brought to the human body due to the fact that the melted waste such as the excitation sheet remains in the human body is further reduced.
All the wires, the water outlet channel 21, the water suction channel 31 and the like penetrate through the handle 4 and the interior of the cutter bar 5 to be connected with corresponding components. The electric connection part of the cable 6 and the loop pole 2 and the electric connection part of the cable 6 and the lead wire connected with the working pole 1 are positioned inside the handle 4.
Example 2
The main differences between this embodiment and the above embodiments are:
the outer excitation sheet 1111 is configured to have a circular outer contour (not shown in the drawings).
Example 3
The main differences between this embodiment and the above embodiments are:
the outer excitation sheet 1111 constitutes an outer contour of an ellipse (not shown in the drawings).
Example 4
The main differences between this embodiment and the above embodiments are:
referring to fig. 3, the excitation sheet 111 further comprises an inner excitation sheet 1112 (i.e. an excitation sheet arranged in the outline of the outer excitation sheet 1111 through an opening 1113), and the inner excitation sheet 1112 is arranged in a structure with a gradually narrowing width from the bottom to the top of the end surface portion 11 (i.e. a portion far away from the bending portion 12). This structure can generate plasma also in the end face portion of the sheet, and is more favorable for cutting.
Preferably, the inner excitation sheet 1112 is in a shape of a straight line, the upper end and the lower end of the inner excitation sheet 1112 are connected between the bottom and the top of the outer excitation sheet 1111 to form two holes 1113 respectively located at two sides of the inner excitation sheet 1112, and a notch 1114 is arranged at the outer side of the connection part of the upper end of the inner excitation sheet 1112 and the outer excitation sheet 1111. Compared with the scheme, the structure enables the width of the top of the outer exciting sheet to be reduced, the outer exciting sheet is easier to melt, the sheet-shaped electrode is prevented from being broken or even broken integrally from the sheet-shaped electrode to fall into a human body, the harm of the operation to the human body is further reduced, and the safety is higher. Meanwhile, the structure enables the top of the outer exciting sheet to generate stronger plasma, so that the cutting is sharper and the effect is better.
Preferably, the water suction holes 32 are provided at positions corresponding to the end surface portion 11 of the working electrode 1 (refer to fig. 1, i.e., the back surface of the end surface portion 11). The inner excitation sheet 1112 also has a function of scattering waste tissue and preventing clogging of the water absorption channel 31 when waste is sucked.
Preferably, the notch 1114 is a "V" shaped notch. The safety can be ensured, and the attractiveness can be improved.
Preferably, the opening edge of the notch 1114 is provided with a rounding off 1115, and preferably, all the positions of the notch can be provided with the rounding off 1115, so that relatively more uniform plasma can be generated, and the cutting effect is better.
After adopting the above scheme, the overall shape of the end surface part 11 is similar to a 'pig nose' shape.
Example 5
The main differences between this embodiment and the above embodiments are:
referring to fig. 2, the top of the end surface portion 11 is spaced from the circuit pole 2 by a smaller distance than the bottom of the end surface portion 11 is spaced from the circuit pole 2.
Preferably, the end face part 11 and the return circuit electrode 2 form an included angle of 3 degrees to 10 degrees, so that the top of the end face part can generate plasma earlier, the top of the end face part is also favorable for generating stronger plasma, the top of the end face part is easier to melt, the sheet-shaped electrode can be prevented from being disconnected from the top of the end face part or even being integrally disconnected and falling into a human body, and the cutting effect is better, and the safety is higher.
This kind of structure makes the top of terminal surface portion can produce plasma earlier, also is favorable to the top of terminal surface portion to produce stronger plasma for the top of terminal surface portion melts more easily, can prevent that the slice electrode from wherein being interrupted to open or even whole disconnection and falling into the human body, has further reduced the harm that the operation caused the human body, and the security is higher.
Example 6
The main differences between this embodiment and the above embodiments are:
referring to fig. 3, the width of the exciting sheet 111 at the side of the end surface part 11 is greater than the width of the exciting sheet 111 at the top of the end surface part 11, which is more beneficial to melting the top of the end surface part, compared with the above technical scheme, the structure can prevent the sheet electrode from being broken or even broken integrally from falling into the human body, further reducing the harm of the operation to the human body, and having higher safety.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention. Parts of the invention not described in detail belong to the known technology in the art, and those skilled in the art can implement the invention according to the existing description without creative efforts, and therefore, the details are not described again.
Claims (14)
1. The utility model provides a safe type plasma operation electrode, includes working pole (1) and return circuit utmost point (2) through cable (6) power supply, working pole (1) and return circuit utmost point (2) are kept apart through insulator foot (3), its characterized in that: the working electrode (1) comprises a sheet-shaped end surface part (11) and a bending part (12); the end surface part (11) is provided with an exciting sheet (111) in a mode of opening a hole (1113); the exciting sheet (111) comprises an outer exciting sheet (1111), the width of the outer exciting sheet (1111) is gradually narrowed from the bottom to the side of the end surface part (11), and the width of the bending part (12) is larger than that of the bottom of the exciting sheet (111).
2. A safety plasma surgical electrode according to claim 1, wherein: the exciting sheet (111) comprises an outer exciting sheet (1111), and the outer exciting sheet (1111) is formed to have an outer contour width from the top of the end surface portion (11) smaller than the outer contour width of the bottom and side portions of the end surface portion (11).
3. A safety plasma surgical electrode according to claim 2, wherein: the outer exciting sheet (1111) forms the outer contour of any one end surface part (11) of a C shape after rotating by 90 degrees clockwise, a D shape after rotating by 90 degrees anticlockwise, a circle or an ellipse.
4. A safety plasma surgical electrode according to claim 2, wherein: the exciting sheet (111) further comprises an inner exciting sheet (1112), and the inner exciting sheet (1112) is arranged in a structure with a gradually narrowed width from the bottom to the top of the end surface part (11).
5. A safety plasma surgical electrode according to claim 4, wherein: the inner excitation sheet (1112) is in a shape of a straight line, the upper end and the lower end of the inner excitation sheet are connected between the bottom and the top of the outer excitation sheet (1111), and a notch (1114) is arranged on the outer side of the connection part of the upper end of the inner excitation sheet (1112) and the outer excitation sheet (1111).
6. A safety plasma surgical electrode according to claim 5, wherein: the notch (1114) is a V-shaped notch.
7. A safety plasma surgical electrode according to claim 5 or 6, wherein: and the edge of the opening of the notch (1114) is provided with a fillet (1115).
8. A safety plasma surgical electrode according to claim 7, wherein: and the inner side of the hole (1113) is provided with a fillet (1115).
9. A safety plasma surgical electrode according to any of claims 1 to 6, 8, wherein: the distance between the top of the end surface part (11) and the circuit pole (2) is smaller than the distance between the bottom of the end surface part (11) and the circuit pole (2).
10. A safety plasma surgical electrode according to claim 9, wherein: the end surface part (11) and the loop pole (2) form an included angle of 3-10 degrees.
11. A safety plasma surgical electrode according to claim 1, wherein: the width of the exciting sheet (111) at the side part of the end surface part (11) is larger than that of the exciting sheet (111) at the top part of the end surface part (11).
12. A safety plasma surgical electrode according to claim 1, wherein: and the loop pole (2) is provided with a water outlet hole (22) communicated with the water outlet channel (21).
13. A safety plasma surgical electrode according to claim 1 or 12, wherein: and a water suction hole (32) communicated with the water suction channel (31) is arranged in the insulating seat (3).
14. A safety plasma surgical electrode according to any of claims 1 to 6, 8, wherein: the loop pole (2) is bent.
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| CN201911119681.2A CN110742684A (en) | 2019-11-15 | 2019-11-15 | Safe type plasma operation electrode |
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| CN201911119681.2A CN110742684A (en) | 2019-11-15 | 2019-11-15 | Safe type plasma operation electrode |
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| US20020049438A1 (en) * | 1999-10-05 | 2002-04-25 | Oratec Interventions, Inc. | Surgical instrument having distal face with first and second electrodes |
| CN102639076A (en) * | 2009-12-07 | 2012-08-15 | 亚瑟罗凯尔公司 | Single aperture electrode assembly |
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| CN103156682A (en) * | 2012-10-19 | 2013-06-19 | 中美联合技术(北京)有限公司 | Twin-pole surgery electrode and method with drainage system |
| US20140257269A1 (en) * | 2013-03-07 | 2014-09-11 | Arthrocare Corporation | Electrosurgical methods and systems |
| CN106456243A (en) * | 2014-02-28 | 2017-02-22 | 亚瑟罗凯尔公司 | Systems and methods systems related to electrosurgical wands with screen electrodes |
| CN211460490U (en) * | 2019-11-15 | 2020-09-11 | 成都美创医疗科技股份有限公司 | Safe type plasma operation electrode |
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| US20020049438A1 (en) * | 1999-10-05 | 2002-04-25 | Oratec Interventions, Inc. | Surgical instrument having distal face with first and second electrodes |
| CN102639076A (en) * | 2009-12-07 | 2012-08-15 | 亚瑟罗凯尔公司 | Single aperture electrode assembly |
| CN103156682A (en) * | 2012-10-19 | 2013-06-19 | 中美联合技术(北京)有限公司 | Twin-pole surgery electrode and method with drainage system |
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