A kind of medical bipolar surgery electrode of lamellar contact
Technical field
This utility model relates to a kind of medical operation electrode, especially can carry out anatomic tissue in operation, or tissue is dry, or ablation of tissue, or the bipolar electrode of low temperature blood coagulation.
Background technology
At present, in known procedures electrode, excite contact and the backflow contact of a class electrode are separated from each other, needle-like excite the contact focus, the backflow contact of lamellar (electrode slice) is attached to patient, is referred to as monopolar electrode on medical speciality.Another kind of electrode is to provide simultaneously in work end to excite contact and current reflux contact, is referred to as bipolar electrode on medical speciality.During bipolar electrode work, electric field not by human body, therefore has more advantage in safety.
In the bipolar electrode field, be used for tweezer shape electrode---the bipolar tweezer of blood coagulation, there has been the use of last 100 years historical.Another kind of will excite contact and backflow contact to be arranged on the cutter head of a knife bar, and anatomic tissue, drying will be provided simultaneously, melt the bipolar electrode with blood coagulation, and due to its distinctive safety and efficiently, begin more to be paid attention to.Use comparatively complicatedly and various due to actual medical, in different field of surgery, the version requirement of electrode is not quite similar, thereby the electrode form that more corresponds to actual needs need to be arranged.
Make electrode contact with seal wire and can obtain satisfied Electric Field Distribution effect, but because bipolar electrode cutter head space surface is limited, make the seal wire contact difficulty of processing precise larger.Make accurate complicated electrode contact by the metal incision technology, can improve manufacturing effect, represented following direction of bipolar electrode contact manufacturing.
Bipolar electrode cut in saline and the solidifying effect of heat in order to improve, and makes for improving being easy to get property simultaneously, need design contact form and the electrode form that is more suitable for, and to satisfy the needs of daily operative treatment, the needs of open surgery and Microendoscopic complicated operation especially.
Summary of the invention
In order to adapt to medical operating to the actual requirement of ambipolar procedures electrode, be convenient to simultaneously processing, this utility model provides a kind of medical bipolar electrode, utilizes metal to scribe technology, manufactures and designs various forms of electrode contacts.If necessary, perfusion and drainage system can be installed easily thereon, normal saline is directed to therapentic part from bag of saline (bottle), or abandon the liquid bottle from therapentic part with what tissue debris and saline were directed to vacuum extractor, thereby make that procedures electrode possesses simultaneously anatomic tissue, drying, melts, blood coagulation, perfusion saline be or/and multiple functions such as suction pumps, the complicated operation that especially is fit to open and Microendoscopic operates.
The technical scheme that its technical problem that solves this utility model adopts is:
The medical bipolar surgery electrode of lamellar contact is comprised of electrode knife bar, electrode handle, electrode cable and attaching plug, and electrode knife bar front end is welding tip, and the welding tip far-end is electrode knife head.
Be provided with one or more contact isolated insulation posts at electrode knife head, contact isolated insulation post is provided with one or more contacts; Has one on the point of a knife of electrode at least by Metal Flake or excite contact through what the sheet metal of scribing processing was made; The insulation of electrode knife bar appearance wherein arranges a metal tube at least, and metal tube serves as a backflow contact in the part that welding tip exposes the appearance insulation; The sheet metal contact that is arranged on the electrode point of a knife is lamellar point of a knife contact; Cutter head contact isolated insulation post is arranged at the front end of metal tube in the electrode knife bar, and the insulant of contact isolated insulation post is resin, plastics, silicone rubber or pottery, or the combination of above several insulant.The metal tube front end face is parallel with the front surface of insulated column on it is set, and the suitable creep age distance of being separated by.
As a kind of embodiment, lamellar point of a knife contact is one or several strip sheet metals, and strip sheet metal is vertical bar or circular arc bar shaped, and strip sheet metal can intersect or intersect.
As another kind of embodiment, lamellar point of a knife contact is rounded, oval, fan-shaped, polygon or annular, or the combination of these geometries; Annular can be open loop or closed loop, and one or several circular holes, elliptical aperture, semicircle orifice, delthyrium, circular arc delthyrium or fillet delthyrium are arranged on it.
Another situation is, lamellar point of a knife contact is rounded, oval, fan-shaped, polygon, circular arc bar shaped or annular, or the combination of these geometries; Annular can be open loop or closed loop, and its outer edge has one or several semicircles, rectangle or vee.
With saline swollen chamber the time, electrode does not need the perfusion of saline system, but as required drainage system can be set on electrode; The occasion that there is no saline at therapentic part can arrange the filling system that is comprised of water injection pipe in water injection conduit, electrode and electrode tip water filling port on electrode.
Under practical situation, can be provided with the filling system that is formed by water injection pipe in water injection conduit, electrode and electrode tip water filling port on electrode; Or be provided with drainage system by electrode tip attracts mouthful, electrode inner drainage tube and drainage catheter form; Or be provided with simultaneously above-mentioned perfusion and drainage system.
The water injection conduit of electrode is connected with drainage catheter with infusion apparatus joint and is connected with attractive device connector; The outer cone joint of the specification of infusion apparatus joint and medical Transfusion device is supporting, the specification of attractive device connector and the connecting pipe matched of Medical vacuum extractor.When the needs water filling, bag of saline (bottle) is connected with the infusion connector of electrode by medical Transfusion device, saline under action of gravitation, the electrode infusion apparatus joint of flowing through, water injection conduit enters electrode knife bar water-injecting cavity, flows out from the electrode tip water filling port; At needs during with the electrode drain, saline, tissue debris and the smog at cutter head position attract mouthful via electrode tip under the effect of negative pressure, the electrode inner drainage tube, and drainage catheter and attractive device connector are abandoned the liquid bottle to vacuum extractor.
Electrode tip attracts mouth can be arranged on the front surface of contact isolated insulation post.The position can be arranged on centre of surface, or amesiality setting.It can be circular or semicircle that electrode tip attracts mouth.
Adapt to dissimilar operation, lamellar point of a knife contact can be to comprise one or more list structure contacts of being made by sheet metal.If there is electrode tip to attract mouth, the segment conductor coated electrode head of lamellar point of a knife contact attracts mouth.Except vertical bar shape contact, the insulated column surface can also arrange the lamellar point of a knife contact of circular arc strip.Each conductor can divide and is arranged, and more common form is mutually to intersect or arranged in a crossed manner.
Adapt to dissimilar operation, lamellar point of a knife contact can be to comprise the circle made by sheet metal (in inclined-plane point of a knife situation for oval), fan-shaped, fillet polygon or loop configuration lamellar point of a knife contact.Have simultaneously one or several circular holes, elliptical aperture, semicircle orifice or delthyrium (circular arc delthyrium or fillet delthyrium) thereon.If the mouth of attraction is arranged, the segment conductor of lamellar point of a knife contact covers and attracts mouth.
Adapt to dissimilar operation, can have one or several semicircles, rectangle or vee on the outer edge of above-mentioned lamellar point of a knife contact, thereby adjust the Electric Field Distribution of point of a knife.
Adapt to dissimilar operation, the lamellar point of a knife contact of being made by sheet metal on point of a knife can be in a plane, also can be in the middle of same lamellar point of a knife contact plane.
When lamellar point of a knife contact was in same plane, all were provided with an angle δ between the front surface of the lamellar point of a knife contact plane of living in of being made by sheet metal on point of a knife and contact isolated insulation post.
The contact plane can also separate on one side with the front surface of contact isolated insulation post, and one of formation is less than the angle δ of 90 ° between lamellar point of a knife contact plane and contact isolated insulation post front surface.As required, also can be arranged in parallel between the front surface of lamellar point of a knife contact plane and contact isolated insulation post, comprise and to lie prostrate on contact isolated insulation post front surface by note, at this moment be equivalent to angle δ and equal 0 °.
Adapt to different type of surgery, the front surface of welding tip contact isolated insulation post can with the sagittal plane shape of welding tip α in an angle, also can be axially vertical with welding tip, at this moment be equivalent to angle α and equal 0 °.
Adapt to different operations, electrode can be the straight-bar form, also can axially with in the middle part of the electrode knife bar bent angle β be arranged axially at welding tip according to the operation needs.Be to adapt to the requirement of endoscopic surgery, the electrode knife bar is arranging a bent angle θ reverse with the point of a knife direction near the handle place.In deep operation, the electrode knife bar can also arrange near working end place one with point of a knife direction bent angle λ in the same way.
The beneficial effects of the utility model are to make the bipolar surgery electrode be more suitable for different operating actual needs.Improve simultaneously the manufacturability of the electrode contact of different operations.
Description of drawings
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the schematic side view of this utility model bipolar electrode.
Fig. 2 is the front elevational schematic that lamellar point of a knife contact embodiment cutter head is intersected in a bar shaped.
Fig. 3 be one with the front elevational schematic of circular arc bar and vertical bar shaped lamellar point of a knife contact embodiment cutter head.
Fig. 4 is a circle and with the front elevational schematic of the lamellar point of a knife contact embodiment cutter head of a plurality of delthyriums.
Fig. 5 be one with the front elevational schematic of the lamellar point of a knife contact embodiment cutter head of two circular holes.
Fig. 6 is with two breach lamellar point of a knife contact embodiment cutter head front elevational schematic of three hole outer edge bands in one.
Fig. 7 is the lamellar point of a knife contact embodiment cutter head front elevational schematic of three breach open loops of circular hole tyre in a band.
Fig. 8 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Fig. 9 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Figure 10 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Figure 11 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Figure 12 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Figure 13 is a kind of lamellar point of a knife contact embodiment schematic diagram of geometric format.
Figure 14 is the cutter head schematic side view of point of a knife band drift angle, inclined-plane lamellar point of a knife contact embodiment.
Figure 15 is a cutter head schematic side view with point of a knife plane parallel lamellar point of a knife contact embodiment.
Figure 16 be one with the schematic side view of the procedures electrode embodiment of a plurality of bent angles
The specific embodiment
Bipolar electrode in Fig. 1 is by electrode knife bar 1, electrode handle 2, and electrode cable 3 and RF attaching plug 31 form; Be provided with cutting key 21, the solidifying key 22 of heat and voltage-regulation key 23 fingers on electrode handle and press button; In electrode, filling system can be set, can be connected with bag of saline with transfusion device by water injection conduit 33; In electrode, drainage system can also be set, be connected with the adapter of vacuum extractor by drainage catheter 35; The angle beta that a suitable operation is arranged between welding tip is axially axial with the electrode knife bar.
In Fig. 2 embodiment, three vertical bar shaped conductors intersect, the lamellar point of a knife contact 4 that forms a Y shape is installed on contact isolated insulation post 5, contact isolated insulation post is arranged at the front end of electrode metal pipe 6, metal tube 6 appearances arrange insulating barrier 7, and the part that metal tube 6 exposes insulating barrier 7 is served as the backflow contact of electrode.Can be provided with electrode tip in contact isolated insulation post 5 front surface centers and attract mouthfuls 81, the segment conductor coated electrode head of lamellar point of a knife contact 4 attracts mouthfuls 81; Cutter head lower rear at electrode knife bar 1 front end can also be provided with electrode tip water filling port 60.
The difference of Fig. 3 embodiment and Fig. 2 embodiment is, the vertical bar shaped conductor that three ends intersect is crossing at the other end with circular arc strip conductors, forms a fan-shaped lamellar point of a knife contact 4.This embodiment also can regard the circular arc delthyrium that has two symmetries in a fan-shaped lamellar contact as.
Difference with Fig. 2 embodiment in Fig. 4 embodiment is, lamellar point of a knife contact 4 is to form by having a plurality of tri-angle-holed laminated structure conductors in a disk (or oval).
Difference with Fig. 2 embodiment in Fig. 5 embodiment is, lamellar point of a knife contact 4 is to be formed by the laminated structure conductor that has two arc-shaped holes in a disk (or oval).
Difference with Fig. 2 embodiment in Fig. 6 embodiment is, lamellar point of a knife contact 4 is tri-angle-holed by having a plurality of fillets in a disk (or oval), simultaneously on outer edge below lamellar contact 4, be arranged with two semicircular breach, contact conductor piece profile presented similar fan-shaped.
Difference with Fig. 2 embodiment in Fig. 7 embodiment is, lamellar point of a knife contact 4 circles by an open loop (or oval) ring forms, and has three half round cut at its edge, outer ring.
Fig. 8 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
Fig. 9 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
Figure 10 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
Figure 11 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
Figure 12 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
Figure 13 is a kind of embodiment of the lamellar point of a knife contact 4 that can implement.
The Metal Flake point of a knife contact 4 that this utility model scheme is scribed includes but not limited to above-mentioned lamellar contact form.
In Figure 14 embodiment, welding tip lamellar point of a knife contact 4 forms a plane, between the front surface of lamellar point of a knife contact 4 planes and contact isolated insulation post 5, an angle δ is arranged; Between the front surface of contact isolated insulation post 5 and the sagittal plane of working end, an angle α is arranged also; Contact isolated insulation post 5 is arranged on the front end of metal tube 6, and the front end face of metal tube 6 is parallel with the front surface of contact isolated insulation post 5.
Different outer being of Figure 15 embodiment and Figure 15 embodiment, welding tip lamellar point of a knife contact 4 planes and note parallel with the front surface of contact isolated insulation post 5 lies prostrate on contact isolated insulation post 5 and surface, and namely angle δ equals 0 °; To vertical, namely angle α equals 0 ° to the front surface of contact isolated insulation post 5 with the welding tip over glaze.7 is the appearance insulating barrier of electrode knife bar 1.
In Figure 16 embodiment, electrode knife bar 1 has a bent angle θ reverse with the point of a knife direction near the position of electrode handle 3.Electrode knife bar 1 also be provided with near working end place one with point of a knife direction bent angle λ in the same way.