Low-temperature plasma ophthalmologic operation cutter headTechnical field
The present invention relates to ophthalmic operating set technical field, specifically, relate to a kind of low-temperature plasma ophthalmologic operation cutter head.
Background technology
Use now ion electric knife to carry out operative treatment high frequency clinically on a large scale, ion electric knife comprises high frequency electric knife and low-temperature plasma electric knife.High frequency electric knife is due to the high warm of procedures electrode, cross thin or meticulous electrode, its mechanical strength is not enough to completing of buttressing operation, therefore the electrode of existing high frequency electric knife is thicker, cause the otch that cutting tissue is wider, temperature is very high very large for perienchyma hot injury, is not suitable for the requirement of delicate procedure.Low-temperature plasma electric knife then adopts cryoablation techniques, utilize the high-energy characteristic of 100KHz rf electric field, make to form plasma thin layer between electrode and tissue, energy delivery is given tissue after electric field acceleration and opened iuntercellular molecule associative key under low temperature (40-70 DEG C) by this thin layer intermediate ion, thus the excision carrying out organizing, melt, stop blooding, greatly alleviate the damage of tissue and the misery of patient and shorten recovery period.
Existing plasma electrosurgical cutter head has universality, but due to the numerous and jumbled and physiological Main Function of eye anatomic construction, and low-temperature plasma cutter head volume is excessive at present, ophthalmology cannot operate; Use energy is too high, melt even if minimum and the energy that stops blooding all dangerous to eye, very easily there is complication.Therefore improvement is needed badly.
Summary of the invention
For overcoming the problems referred to above of the prior art, the invention provides a kind of smart structural design reasonable, easy to use, adapt to the accurately meticulous feature of ophthalmologic operation, the more Wicresoft of performing the operation, intraoperative hemorrhage is few, safety is high and effectively can alleviate the low-temperature plasma ophthalmologic operation cutter head of patient's misery.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of low-temperature plasma ophthalmologic operation cutter head, comprise in shaft-like bit body and the handle for installing bit body, wherein, described bit body comprises the electrode body, insulated sleeve, the first metal canula and the second metal canula that are successively socketed setting from inside to outside, and the length that described electrode body, insulated sleeve, the first metal canula and the second metal canula stretch out handle shortens successively, be rendered as the level shape of outer short interior length.
Further, described electrode body comprises the bar portion be socketed in insulated sleeve and the head for generation of low temperature plasma being arranged at top, bar portion.
Particularly, described bar portion comprises the body of rod be made up of stainless steel material, and is coated in the coating be made up of inert metal material of body of rod outside.
As preferably, described insulated sleeve is made up of plastic material.
As preferably, described first metal canula is or/and the second metal canula is made up of stainless steel material.
As preferably, the length that described electrode body stretches out handle is 20-100mm, and in electrode body, insulated sleeve, the first metal canula and the second metal canula, adjacent difference of stretching out the length of handle is between the two 0.1-10mm.
For the ease of producing low temperature plasma, curved, square, the circular or triangle in the longitudinal section of the head of described electrode body.
Further, the front end of the head of described electrode body is sealing surface or is provided with groove.
Further, described handle is also provided with power line and for realizing low temperature control and producing the water inlet pipe that enters of material for plasma.
As preferably, the length of described handle is 50-200mm.
Compared with prior art, the present invention has following beneficial effect:
Bit body is set to shaft-like by the present invention, and electrode body adopted the level shape structure of multiple field coated, be conducive to the release of ophthalmology operation and low temperature plasma, the insulated sleeve of configuration maintains the insulating properties of electrode body, two-layer metal canula maintains the stability of bit body and the robustness of profile, its structure is rationally ingenious, the feature of ophthalmologic operation accurate operation can be mated, easy to use, comparatively traditional operation Wicresoft more, intraoperative hemorrhage is few, operating time is short, position is more accurate, improve operation safety, alleviate patient's misery, be with a wide range of applications, be applicable to applying.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional structure schematic diagram of bit body front portion, A place in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in Figure 1 to Figure 2, this low-temperature plasma ophthalmologic operation cutter head mainly comprises handle 2 two large divisions in shaft-like bit body 1 with for installing bit body.
Particularly, bit body comprises the electrode body 11, insulated sleeve 12, first metal canula 13 and the second metal canula 14 that are successively socketed setting from inside to outside, and the length that described electrode body, insulated sleeve, the first metal canula and the second metal canula stretch out handle shortens successively, be rendered as the level shape of outer short interior length.Wherein, electrode body 11 comprises the bar portion 11a be socketed in insulated sleeve and the head 11b for generation of low temperature plasma being arranged at top, bar portion, and be convenient to using and increasing the service life of electrode, described bar portion comprises the body of rod be made up of stainless steel material, and be coated in the coating (not shown) be made up of inert metal material of body of rod outside, adopt inert metal material to comprise one or more combination in titanium, gold, tungsten, molybdenum, thorium, berkelium, rhenium, tantalum, niobium and zirconium.As preferably, described insulated sleeve is made up of plastic material, and described first metal canula and the second metal canula are made by stainless steel material.Wherein be conducive to ophthalmology operation and low temperature plasma release in shaft-like bit body, insulated sleeve maintains the insulating properties of electrode body effectively, and the first metal canula maintains the stability of bit body, and the second metal canula maintains the robustness of bit body profile.For convenience of using, the length that electrode body 11 stretches out handle 2 is 20-100mm, and adjacent difference of stretching out the length of handle is between the two 0.1-10mm in electrode body, insulated sleeve, the first metal canula and the second metal canula, in actual applications can relative set according to demand.The setting of this structure can meet the feature of ophthalmologic operation to the full extent, easy to use, Wicresoft more, and intraoperative hemorrhage is few, and operating time is short, and position is more accurate, effectively improves the safety of operation, alleviates the misery of patient.
Also what deserves to be explained is, curved, square, the circular or triangle in the longitudinal section of the head 11b of described electrode body, this head front end is Collation surgery position, and edge is sharper for low-temperature plasma cutting, and front end is sealing surface or is provided with groove.Its difform head has different discharge performances, is applicable to the ophthalmologic operation of different situations, can be made into multiple different model during practical application, so that directly use in various operation.
Further, the length of described handle is 50-200mm.Further, handle be also provided with power line 3 and for the water inlet pipe 4 realizing low temperature control and enter for plasma generation material, be convenient to operation technique.Wherein, power line is for connecting main frame, and it can be sodium-chloride water solution that plasma produces material.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as adopt design principle of the present invention, and the change carried out non-creativeness work on this basis and make, all should belong within protection scope of the present invention.