CN202960757U - Bipolar electrode of resectoscope - Google Patents
Bipolar electrode of resectoscope Download PDFInfo
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- CN202960757U CN202960757U CN 201220408215 CN201220408215U CN202960757U CN 202960757 U CN202960757 U CN 202960757U CN 201220408215 CN201220408215 CN 201220408215 CN 201220408215 U CN201220408215 U CN 201220408215U CN 202960757 U CN202960757 U CN 202960757U
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- resectoscope
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Abstract
The utility model discloses a bipolar electrode of a resectoscope. The bipolar electrode comprises two metal sleeves, an insulating sleeve, a double-core conducting wire, a semi-ring-shaped positive electrode, a loop electrode, two insulating tubes and a binding post, wherein the front section parts of the two metal sleeves are arranged in a branched manner at an interval, the rear section parts are arranged in a parallelly attached manner, and the insulating sleeve is arranged at the periphery of the rear end parts; the front ends of the two metal sleeves are fixedly connected with two ends of the semi-ring-shaped positive electrode through the two insulating tubes, and the binding post is arranged at the tail ends; one conducting wire body of the double-core conducting wire is electrically connected with the metal sleeves, and the other conducting wire body of the double-core conducting wire penetrates into the metal sleeves and is electrically connected with the positive electrode at the front end; the loop electrode comprises two metal tubes which are arranged at the periphery of the front parts of the two metal sleeves respectively and electrically connected with the metal sleeves; and the rear section parts of the two metal tubes of the loop electrode, as well as the front section parts of the metal sleeves are covered with an insulating layer sleeve. The bipolar electrode of the resectoscope is safe, reliable, and better in operation effect.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to the resectoscope electrode used that Minimally Invasive Surgery is used.
Background technology
Prostate hyperplasia, hypertrophy are the high common diseases of middle-aging male sickness rate, and carrying out excision is the most effective Therapeutic Method.Traditional open surgery is to cut an otch at patient's hypogastric region, then cuts the dirty taking-up prostate of wing, and this is very large to normal urethra physiological structure damage.And the sick majority of prostatic hyperplasia is the old people, and they are difficult to tolerate often with other serious disease the wound that open surgery is brought, and therefore the method for the per urethra internal therapy prostatic hyperplasia of various Wicresofts, be subjected to Urology Surgery doctor's very big attention.Transurethral resection of prostate mirror electrotomy utility model because this operation need not to operate on, has greatly reduced wound in European and American developed countries on human body, being recognized is " goldstandard " of current treatment prostatic hyperplasia.
Resectoscope generally is comprised of endoscope, interior sheath, epitheca, operation hand piece and electrode, electrode is connected on the mirror bar below of endoscope by the fixedly sliding sleeve parallel sleeve on its bar, the electrode rear end patches on the Fixing clamp-seat of operation hand piece, operator's operation hand piece slides before and after making electrode, power generator connects wire by electrode high frequency energy delivery is arrived the electrode front end, before electrode, the end in contact target tissue separates tissue vaporization rapidly, realizes the excision of prostatic hyperplasia.
Referring to Fig. 1 and Fig. 2, the bipolar electrode that resectoscope is used comprises that insulation sleeve 11, two metal canulas 12, anode electrode 13(are used for cutting, also become cutting electrode), loop electrode 14, ceramic insulating tube 15, electrode fixed card 16, binding post 18 and duplex wire 19.Two metal canula 12 leading portion part bifurcated intervals arrange, and the back segment part is fitted side by side (in conjunction with Fig. 3) is set, and two metal canula back segment part peripheries arrange insulation sleeve 11.
The front end of two metal canulas 12 is fixedly connected with respectively the two ends of semicircular (" semicircular " as herein described differs and be decided to be the semicircular of standard) anode electrode 13 by two ceramic insulating tubes 15, the end of two metal canulas 12 arranges binding post 18, wire in duplex wire 19 and metal canula 12 are electrically connected, another root wire (dotted portion in Fig. 3) penetrates in metal canula 12, and is electrically connected with the anode electrode 13 of front end.Loop electrode 14 comprises two metal tubes, is separately positioned on two metal canulas 12 anterior peripheral, and is electrically connected with metal canula 12.Both ends of anode electrode 13 and loop electrode 14 by ceramic insulating tube 15 to keep an interval.
The end of two metal canulas 12 and insulation sleeve 11 is provided with binding post 18, and duplex wire 19 extends out from binding post 18, its tail end and then be connected to plug.Electrode fixed card 16 is arranged on insulation sleeve 11 peripheries, is used for and the mirror bar of endoscope coordinates.
Although reasonability and the elaboration of existing bipolar electrode configurations have reached quite high level, but still there is certain defective, be mainly manifested in: as shown in Figure 4, when carrying out operation, in the process that bipolar electrode phase endoscope 20 moves forward and backward, because the spacing distance of speculum bar 25 diameters of endoscope and two loop electrodes 14 is close, and between two loop electrodes 14, be easy to touch, as the contact 100 in Fig. 4.When carrying out operation, loop electrode 14 is charged, so the electric leakage situation easily occurs, has certain potential safety hazard.
The utility model content
This utility model provides a kind of novel resectoscope bipolar electrode in view of the above problems, and this purpose is realized by following technical scheme:
A kind of resectoscope bipolar electrode comprises two metal canulas, insulation sleeve, duplex wire, semicircular anode electrode, loop electrode, two insulation tubes and binding post; Two metal canula leading portion part bifurcated intervals arrange, and the back segment part is fitted side by side and arranged, and back segment part periphery arranges insulation sleeve; The front end of two metal canulas is fixedly connected with respectively the two ends of semicircular anode electrode by two insulation tubes, end arranges binding post, wire in duplex wire and metal canula are electrically connected, and another root wire penetrates in metal canula, and are electrically connected with the anode electrode of front end; Loop electrode comprises two metal tubes, is separately positioned on two metal canulas anterior peripheral, and is electrically connected with metal canula; It is characterized in that: the back segment part of two metal tubes of described loop electrode is together with the outer wrap insulating barrier sleeve pipe of the leading portion part of metal catheter.
As concrete technical scheme, loop electrode is that the overall diameter of two almost parallels is the metal tube of 1mm-1.7mm, and the surface area of loop electrode is 5 times to 16 times of semicircular anode electrode surface area.
As concrete technical scheme, the thickness of insulating barrier sleeve pipe is preferably 0.05mm-0.3mm, and the length of two metal tube leading portion exposed metal/bare metals of loop electrode is 3mm-15mm.
As concrete technical scheme, described anode electrode is set to semi-circular and shovels shape outward, and between itself and metal canula, angle is preferably 110～160 degree.
As concrete technical scheme, described anode electrode is set in semi-circular hook-shaped, and between itself and metal canula, angle is preferably 70～90 degree.
As further technical scheme, described insulation sleeve periphery also is provided with the electrode fixed card.
The beneficial effects of the utility model are: (1) has kept electrode good passability in the scope pipe; (2) set up the insulating barrier sleeve pipe and make more balance of electrode; (3) electrode structure through optimizing makes the high frequency field pattern of electrode more concentrated; (4) setting up the insulating barrier sleeve pipe makes the high-frequency leakage current of electrode less; (5) safer for the operation technique doctor; (6) insulating barrier sleeve pipe itself is safe to human body, and is good with the Performance Match of rustless steel loop pipe, and the plasma that produces can tolerate removal of lesions was and coagulation time the and the immersion of hydraulic fluid.
Description of drawings
Fig. 1 is the top view of traditional resectoscope bipolar electrode.
Fig. 2 is the side view of traditional resectoscope bipolar electrode.
Fig. 3 is the back panel wiring schematic diagram of traditional resectoscope bipolar electrode.
Fig. 4 is traditional resectoscope bipolar electrode and the figure that coordinates of the mirror bar of endoscope.
The top view of the resectoscope bipolar electrode that Fig. 5 provides for embodiment one.
The side view of the resectoscope bipolar electrode that Fig. 6 provides for embodiment one.
The resectoscope bipolar electrode that Fig. 7 provides for embodiment one and the side view of endoscope.
The specific embodiment
Embodiment one
In conjunction with Fig. 5 and shown in Figure 6, the resectoscope bipolar electrode that the present embodiment provides comprises insulation sleeve 11, metal canula 12, anode electrode 13, loop electrode 14, ceramic insulating tube 15, electrode fixed card 16, binding post 18 and duplex wire 19.
Two metal canula 12 leading portion part bifurcated intervals arrange, and the back segment part is fitted side by side and arranged, and two metal canula back segment part peripheries arrange insulation sleeve 11.The front end of two metal canulas 12 is fixedly connected with respectively the two ends of semicircular anode electrode 13 by two ceramic insulating tubes 15, the end of two metal canulas 12 arranges binding post 18, wire in duplex wire 19 and metal canula 12 are electrically connected, another root wire penetrates in metal canula 12, and is electrically connected with the anode electrode 13 of front end.Loop electrode 14 comprises two metal tubes, is separately positioned on two metal canulas 12 anterior peripheral, and is electrically connected with metal canula 12.Both ends of anode electrode 13 and loop electrode 14 by ceramic insulating tube 15 to keep an interval.The end of two metal canulas 12 and insulation sleeve 11 is provided with binding post 18, and duplex wire 19 extends out from binding post 18, its tail end and then be connected to plug.Electrode fixed card 16 is arranged on insulation sleeve 11 peripheries, is used for and the mirror bar of endoscope coordinates.
Embodiment two
Embodiment two is with the difference of embodiment one: anode electrode is set to semi-circular and shovels shape outward, and namely between Semicircular anode electrode and metal canula, angle greater than 90 degree, is preferably 110～160 degree.
The resectoscope bipolar electrode that above embodiment provides has following beneficial effect:
(1) electrode good passability in the scope pipe.Because electrode is good by cross section and surgical device internal diameter respective outer side edges, when in operation process, electrode moves forward and backward, can smoothly move, without extremely rocking.Also guaranteed the ride comfort of removal of lesions was.
(2) set up the insulating barrier sleeve pipe and make more balance of electrode.Bipolar electrode balance as far as possible from principle requires two relative human bodies of electrode, because high frequency output is balance output, transmission line is balance transmission, more balance is better so require electrode load.
Two electrodes of this electrode are balance preferably, mainly is the area of loop electrode through optimal design, and the area more exposed than similar other electrode is little, and its area is 5 times to 16 times of anode electrode (being the surgical work cutter head) area.The loop electrode naked layer cover of prior art, loop electrode is than the large decades of times of ring electrode area.
(3) electrode structure through optimizing makes the high frequency field pattern of electrode more concentrated.Close together because of Semicircular anode electrode and loop electrode, by the control to the loop electrode exposed part, high-frequency electric field is concentrated between electrode retaining collar and loop electrode, electric field intensity that can the intensifier electrode ring, more easily activate, thereby reduce to alleviate nerve stimulation by the electric current of other tissue, particularly in the prostatic hyperplasia electrocision to the stimulation of obturator nerve, also reduce the damage to human normal tissue.
(4) setting up the insulating barrier sleeve pipe makes the high-frequency leakage current of electrode less.The balanced structure that novel electrode is optimized makes electric current more concentrate on zone to lesion resection or coagulation, makes the human body of flowing through less to large high-frequency leakage current.Further reduce the radiation of high-frequency electric field, because balanced transmission line size of current back and forth equates, single spin-echo, less by the high frequency radiation of transmission, increasing external high frequency radiation as leakage current increases.
(5) safer for the operation technique doctor.Prior art products, because of the naked protective casing, electrode is often touched surgical device metal part in moving process, make surgical device band high frequency voltage, easily by doctor's loop generation high frequency electric over the ground, and then doctor and ancillary staff is damaged.Need to prove, because the electric current by the doctor is high frequency electric, even when larger leakage current is arranged, the doctor may feel and not obvious, but may be to doctor's limbs cell injury.
(6) the insulating barrier sleeve pipe is safe to human body, and is good with the Performance Match of rustless steel loop pipe, and the plasma that produces can tolerate removal of lesions was and coagulation time the and the immersion of hydraulic fluid.
Above embodiment only for fully open unrestricted this utility model, is understandable that, also there are some apparent distortion in this utility model, should also belong to the scope that the application discloses.
Claims (6)
1. resectoscope bipolar electrode comprises two metal canulas, insulation sleeve, duplex wire, semicircular anode electrode, loop electrode, two insulation tubes and binding post; Two metal canula leading portion part bifurcated intervals arrange, and the back segment part is fitted side by side and arranged, and back segment part periphery arranges insulation sleeve; The front end of two metal canulas is fixedly connected with respectively the two ends of semicircular anode electrode by two insulation tubes, end arranges binding post, wire in duplex wire and metal canula are electrically connected, and another root wire penetrates in metal canula, and are electrically connected with the anode electrode of front end; Loop electrode comprises two metal tubes, is separately positioned on two metal canulas anterior peripheral, and is electrically connected with metal canula; It is characterized in that: the back segment part of two metal tubes of described loop electrode is together with the outer wrap insulating barrier sleeve pipe of the leading portion part of metal catheter.
2. resectoscope bipolar electrode as claimed in claim 1, is characterized in that, described loop electrode is that the overall diameter of two almost parallels is the metal tube of 1mm-1.7mm, and the surface area of loop electrode is 5 times to 16 times of semicircular anode electrode surface area.
3. resectoscope bipolar electrode as claimed in claim 1 or 2, is characterized in that, the thickness of described insulating barrier sleeve pipe is 0.05mm-0.3mm, and the length of two metal tube leading portion exposed metal/bare metals of loop electrode is 3mm-15mm.
4. resectoscope bipolar electrode as claimed in claim 1, is characterized in that, described anode electrode is set to semi-circular and shovels shape outward, and between itself and metal canula, angle is 110～160 degree.
5. resectoscope bipolar electrode as claimed in claim 1, is characterized in that, described anode electrode is set in semi-circular hook-shaped, and between itself and metal canula, angle is 70～90 degree.
6. resectoscope bipolar electrode as claimed in claim 1, is characterized in that, described insulation sleeve periphery also is provided with the electrode fixed card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408215 CN202960757U (en) | 2012-08-16 | 2012-08-16 | Bipolar electrode of resectoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408215 CN202960757U (en) | 2012-08-16 | 2012-08-16 | Bipolar electrode of resectoscope |
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| CN202960757U true CN202960757U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408215 Expired - Lifetime CN202960757U (en) | 2012-08-16 | 2012-08-16 | Bipolar electrode of resectoscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102846375A (en) * | 2012-08-16 | 2013-01-02 | 珠海市司迈科技有限公司 | Bipolar electrode of resectoscope |
| WO2016206499A1 (en) * | 2015-06-24 | 2016-12-29 | 珠海市司迈科技有限公司 | Left-right parallel bipolar loop electrode |
| CN109394338A (en) * | 2018-10-19 | 2019-03-01 | 江苏邦士医疗科技有限公司 | A kind of plasma radiofrequency electrode |
| WO2023029202A1 (en) * | 2021-09-02 | 2023-03-09 | 江苏邦士医疗科技有限公司 | Plasma electrode for bladder cancer tumor resection operation |
-
2012
- 2012-08-16 CN CN 201220408215 patent/CN202960757U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102846375A (en) * | 2012-08-16 | 2013-01-02 | 珠海市司迈科技有限公司 | Bipolar electrode of resectoscope |
| WO2014026470A1 (en) * | 2012-08-16 | 2014-02-20 | 珠海市司迈科技有限公司 | Bipolar electrode for resectoscope |
| WO2016206499A1 (en) * | 2015-06-24 | 2016-12-29 | 珠海市司迈科技有限公司 | Left-right parallel bipolar loop electrode |
| CN109394338A (en) * | 2018-10-19 | 2019-03-01 | 江苏邦士医疗科技有限公司 | A kind of plasma radiofrequency electrode |
| WO2023029202A1 (en) * | 2021-09-02 | 2023-03-09 | 江苏邦士医疗科技有限公司 | Plasma electrode for bladder cancer tumor resection operation |
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| GR01 | Patent grant | ||
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Granted publication date: 20130605 |