Background technology
At present, in known procedures electrode, excite contact and the backflow contact of a class electrode are separated from each other, and the contact that excites of needle-like contacts focus, and the backflow contact of lamellar (electrode slice) is attached on one's body the patient, is referred to as monopolar electrode on the 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 the medical speciality.Therefore electric field has more advantage in safety not by human body during bipolar electrode work.
In the bipolar electrode field, be used for tweezer shape electrode---the bipolar tweezer of blood coagulation, the use history of last 100 years has been arranged.Another kind of will excite contact and backflow contact to be arranged on the electrode cutter head of an electrode stem, and anatomic tissue, drying will be provided simultaneously, melt the bipolar electrode with blood coagulation, and owing to its distinctive safety and high efficiency, begin more to be paid attention to.Because actual medical is used comparatively complicated and various, in different field of surgery, the version of counter electrode requires to be not quite similar, thereby the electrode form that more corresponds to actual needs need be arranged.
For forming the good operation effect at the bipolar electrode cutter head, often need to its working end perfusion normal saline, make to excite between contact, tissue and backflow contact by saline to form the galvanic circle.Under open environment, need pour at any time and additional saline to point of a knife, in case electrode is worked in saline, for making the art open country clear, and effluent discharge in time, tissue debris and smog, need suction pump to cooperate the work of electrode cutter head, at this moment become extremely important in electrode combination water filling and discharge opeing suction device.
The plumbing passage is set outside electrode stem not only takes up space, the restriction range of operation, and hinder the patient visual field.Often need bend the procedures electrode bar according to therapentic part in operation, supply and drain water system not only can not damage because of electrode stem is crooked, and in bending, also wants and can change with point of a knife, does not influence the use of electrode; Therefore need provide bent supply and drain water system for electrode.
Summary of the invention
In order to adapt to medical operating ambipolar procedures electrode is replenished saline to the therapentic part perfusion at any time, can attract draining from therapentic part at any time as required again simultaneously, the actual requirement of aerofluxus and row's chip, overcome electrode supply and drain water system actual functional capability defective, be convenient to processing simultaneously, this utility model provides a kind of medical bipolar electrode that has water feeding and draining device, normal saline is directed to therapentic part from bag of saline (bottle), and then abandon the liquid bottle from the treatment part guidance to vacuum extractor, greatly improved the work effect of electrode, make procedures electrode possess anatomic tissue simultaneously, dry, melt, blood coagulation, multinomial functions such as perfusion saline and suction pump, simplify operation technique, bring into play the therapeutical effect of bipolar electrode to greatest extent.
The technical scheme that its technical problem that solves this utility model adopts is:
Bring the bipolar surgery electrode of drainage system by electrode stem, electrode handle, electrode cable, attaching plug, perfusion---supply line and drain---discharge pipe line is formed, electrode front end working end is the electrode cutter head.Arrange at electrode attracted by electrode cutter head water filling port and cutter head mouthful, water-feeding ﹠ drainaging pipeline, handle plumbing conduit and transfusion device joint and attractive device connector are formed in the electrode stem supply and drain water system.
Electrode cutter head water filling port and cutter head attract mouth to be arranged on welding tip; Be provided with water filling and discharge pipe line in the bar in the electrode stem, cutter head water filling port and cutter head attract mouth to be connected with the front end of water filling and discharge pipe line in the bar respectively, and the not end of water filling and discharge pipe line is connected with drainage duct with water filling respectively; Water filling is connected with attractive device connector with the transfusion device joint respectively with drainage duct; The outer cone joint of transfusion device joint and medical Transfusion device is supporting, and the adapter of attractive device connector and medical negative pressure suction device is supporting; The electrode cutter head is provided with one or more contact isolated insulation posts, and contact isolated insulation post is provided with one or more contacts; Have one on the point of a knife of electrode at least and excite contact, have a backflow contact on the working end of electrode at least; Be electrically connected contact lead or conductor behind the contact, lead and conductor pass electrode stem and are electrically connected to electrode cable in the electrode handle.
In the above-mentioned electrode, bag of saline (bottle) links to each other with the transfusion device joint of electrode by medical Transfusion device, saline under the effect of gravity, the electrode transfusion device joint of flowing through, the water filling conduit enters the electrode stem water injecting pipeline, flows out from electrode cutter head water filling port; Saline, tissue debris and the smog at electrode cutter head position attract mouthful via the electrode cutter head under the effect of negative pressure, discharge pipe line in the electrode stem, and drainage duct and attractive device connector are abandoned the liquid bottle to vacuum extractor; Saline is flowed through by exciting contact, tissue and backflow contact surface at point of a knife, provides bipolar loop electric field for exciting contact and backflow contact.
In this electrode, can use the part (multi-lumen tube structure) of the tube chamber of metal tube in the electrode stem or other bodys (single chamber that the electrode stem radial supporter forms or the multi-cavity pipeline of isolating mutually) or tube chamber as water-feeding ﹠ drainaging pipeline in the above-mentioned electrode stem; Also can in electrode stem, water pipe be installed as water-feeding ﹠ drainaging pipeline in the electrode stem separately; These water pipes can with electrode stem in body axially be set up in parallel, also can be located in the tube chamber of some body in the electrode stem.
As an embodiment, electrode stem can by one or more tubular body side by side or suit form, it is by the mutual separated tube chamber of tube wall, or the part tube chamber when the multi-lumen tube structure constitutes the water-feeding ﹠ drainaging pipeline in the electrode stem as the water filling in the electrode stem and drain chamber.
As another embodiment, has a metal tube in the electrode stem at least; Be provided with an external diameter in the metal tube less than the insulation tube of metal tube internal diameter, the insulation tube inner chamber is as the drain chamber in the electrode stem.
The occasion that the above-mentioned electrode stem that brings drainage system uses after the needs bending, wherein the body of She Zhiing all adopts the rubber-like material, as plastics, rubber etc., to prevent that the folding dead angle appears in water pipe in BENDING PROCESS, block the water route, guarantee in the electrode stem water filling and discharge pipe line can be in electrode uses with knife bar bending or crooked and do not influence current.
As the bipolar electrode that brings draining of the flexible typing of rigidity, the structure of an embodiment is a flexible metal tube to be set as the skeleton of electrode stem in the electrode stem; An external diameter is set less than the insulation tube of metal tube internal diameter in the metal tube, the insulation tube inner chamber is as the drain chamber in the electrode stem, and the tube chamber between insulation tube and the metal tube is as the water filling tube chamber in the electrode stem.Thereby make in the electrode stem water filling and discharge pipe line can be in electrode uses with knife bar bending or crooked and do not influence current.
Excite contact and backflow contact through insulation and the lead of waterproof, pass electrode stem via the water filling tube chamber of electrode stem, be connected to the electrode cable in the electrode handle.
Have one to several outlets at electrode stem front end side wall periphery, from electrode stem water filling tube chamber, water is drawn, for making water outlet guiding point of a knife, need change the direction of a stream of water, the current deflecting support chip is set above outlet, and under the guiding support chip or both sides form a little cavity, under the effect of gravitative pressure, the water outlet of outlet is guided point of a knife into via this little cavity.The current deflecting support chip is annular, semicircle or other shapes, can or prop the water guide cavity at the point of a knife rear portion on every side.
To be electrode stem be sleeved on internal diameter on the metal tube by metal tube and one to the structure of another embodiment constitutes greater than the elastic insulated pipe of metal tube external diameter; Tube chamber between the outer and insulation tube of metal tube is as the water filling tube chamber in the electrode stem; The metal tube inner chamber, or part tube chamber (when being provided with other bodys in the metal tube) is as the drain chamber in the electrode stem, and the preceding outlet of overcoat insulation tube at this moment is electrode cutter head water filling port.
Electrode cutter head water filling port be arranged on the electrode point of a knife rear portion, periphery, side, above or below; Cutter head attract mouth be arranged on the point of a knife contact below, be provided with the strip lattice retaining that is constituted by contact before cutter head is attracted mouthful; Lattice retainings is one or several bar shaped or circular arc seal wire, with forms such as wall scroll, many, polygon frame, arc frame, multi sphere frame, multilamellar frame and grids, covers cutter head and attracts mouthful, prevents that bulk tissue from stopping up cutter head and attracting mouthful.
Can flow regulator be set plumbing (water filling and/or the draining) conduit outside passing electrode handle, close or regulate the flow of water inlet and drain as required.
Can establish a bent angle β at the electrode stem front end, adapt to the different parts operation to the requirement of nose angle degree.
Can become a suitable angle α with electrode cutter head (bar) radial section at point of a knife isolated insulation post front surface and point of a knife contact plane, adapt to the molding operation to the needs of different surface treatment.
The beneficial effects of the utility model are to make the bipolar surgery electrode be more suitable for different operating actual needs.In the point of a knife water filling, can be at any time easily with waste liquid, waste gas and tissue debris from the point of a knife sucking-off, thereby the cleaning therapentic part; improve operation efficient; increase operation safety, the pair damage of therapeutic process is controlled and reduced to protection patient health to greatest extent.
The specific embodiment
Bipolar electrode among Fig. 1 is by electrode stem 1, electrode handle 2, electrode cable 3 and RF attaching plug 31 formed, electrode handle 2 be provided with cutting 21, heat coagulate 22 and voltage-regulation 23 refer to press button.Attractive device connector 36 enters electrode handle 2 by drainage duct 35; Gravity transfusion device joint 34 enters electrode handle 2 by water filling conduit 33; The metal tube 6 of electrode stem 1 bare front end serves as the backflow contact of electrode, and the electrode stem skin is made of outer layer insulation 7; The front end of metal tube 6 is provided with contact isolated insulation post 5, is provided with electrode cutter head water filling port 60 and cutter head attraction mouth 81 at the electrode cutter head, and electrode cutter head and electrode stem can have a bent angle β.
Fig. 2 is an embodiment who brings the drainage system electrode among Fig. 1, is that the side of electrode stem 1 working end is cutd open sketch map.1 is electrode stem among the figure, and 7 is the electrode stem outer layer insulation, and 4 for exciting contact, and it is installed on the contact isolated insulation post 5; Contact isolated insulation post is installed on the front end of metal tube 6, and the part that metal tube 6 exposes outer layer insulation 7 is used as the backflow contact of electrode, and body serves as the contact conductor; The part tube chamber of metal tube 6 is the water filling tube chamber 8 in the electrode stem, and metal tube 6 sidewalls have apopore 63, are coated with current deflecting support chip 65 on it, and the prerotation vane front end is electrode cutter head water filling port 60; Excite the lead 41 of contact to be provided with wire insulation 51, lead 41 passes the water filling tube chamber to the rear end of electrode stem; Metal tube 6 is isolated by 7 pairs of external insulations of outer layer insulation; Contact isolated insulation post 5 is provided with the electrode cutter head and attracts mouth 81, and the tube chamber of its back-connected body serves as the drain chamber 82 of electrode stem; The plane that excites contact 4 of electrode point of a knife and electrode tip radial section can have a suitable angle α.
Fig. 3 is an embodiment who brings the drainage system electrode among Fig. 1, is that the side of electrode stem 1 working end is cutd open sketch map.The difference of itself and Fig. 2 embodiment is: the water filling tube chamber 8 of electrode stem is served as in electrode stem outer layer insulation 7 and the gap of metal tube 6, and electrode cutter head water filling port 60 is served as in the preceding outlet of water filling tube chamber; Excite the lead 41 of contact and the dry cavity that wire insulation 51 passes electrode stem 1 thereof, draw from electrode stem 1 rear end, remove the live wire of connection electrode cable 3.
Fig. 4 is an embodiment who brings the drainage system electrode among Fig. 1, is the front elevational schematic of electrode cutter head.Wherein excite contact 4 to be installed on the contact isolated insulation post 5; 6 are the backflow contact, and 7 is the outer layer insulation of electrode stem; 65 for being set in the ring-type current deflecting support chip on the point of a knife, and 60 is the cutter head water filling port around point of a knife, excites contact 4 to be grid configuration, excites contact 4 lattice retaining to attract mouth 81 for the electrode cutter head down.
Fig. 5 is the embodiment that Fig. 1 brings the drainage system electrode, is the front elevational schematic of electrode cutter head.The difference of itself and Fig. 4 embodiment is: current deflecting support chip 65 is the side up and down of semicircle and the point of a knife that is placed in, the cutter head water filling port 60 that forms also is positioned at the both sides of point of a knife, the contact 4 that excites that arranges at contact isolated insulation post 5 is the multiple contact form, be the dot matrix layout, and before cutter head attracts mouth 81, arrange with lattice retaining form.
Fig. 6 is the sketch map of general aqueduct flow regulator.The 38th, can be arranged at the flow regulator on Fig. 1 water filling conduit 33 and/or the drainage duct 35.