CN104323855A - False-path-free urethrostenosis orientation plasma electric knife - Google Patents
False-path-free urethrostenosis orientation plasma electric knife Download PDFInfo
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- CN104323855A CN104323855A CN201410665528.0A CN201410665528A CN104323855A CN 104323855 A CN104323855 A CN 104323855A CN 201410665528 A CN201410665528 A CN 201410665528A CN 104323855 A CN104323855 A CN 104323855A
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- electric knife
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- electrode
- cutting electrode
- plasma electric
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Abstract
The invention discloses a false-path-free urethrostenosis orientation plasma electric knife. The electric knife comprises a cutting electrode, a circuit electrode and a conducting wire pipe, wherein a ceramic insulation pipe is arranged between the cutting electrode and the circuit electrode, an arc ceramic protection sleeve is arranged on one end of the ceramic insulation pipe, and the arc ceramic protection sleeve covers one side of the cutting electrode. The cutting electrode is insulated to normal tissues in the urethra of the human body to form an electrode orientation working surface, the damage of the cutting electrode on the normal tissue can be effectively avoided, the electric knife can more smoothly reach the focus tissue of the disease, a false path is prevented from forming in the urethra, and the risk of recurrence urethrostenosis can be lowered.
Description
Technical field
The invention belongs to medical instruments field, relate to clinical urethra narrow surgical plasma electric cutting knife.
Background technology
Male urethral stricture is clinical common disease, and urethral stricture can cause infection, vesical calculus, and fistulization, septicemia, even renal failure, have a strong impact on patients ' life quality.Non-surgical treatment comprises urethral dilatation etc., for the patient that non-operative treatment is invalid, then and adopted operative treatment.Conventional operative treatment at present, traditional open surgery is very large to normal urethra physiological structure damage, and patient is difficult to the wound that tolerance open surgery is brought, and therefore the operation method of various Wicresoft is applied to clinical gradually, and is subject to the attention of patient and doctor.
A kind of Minimally Invasive Surgery apparatus conventional is at present ion-conductance cutting knife, and it mainly comprises cutting electrode, loop electrode and conduit, is provided with ceramic insulating tube between cutting electrode and loop electrode.Wire in conduit by high frequency energy delivery to cutting electrode, cutting electrode contact target tissue produces plasma, plasma directly interrupts molecular link by the charged particle decomposited, thus under lower radio frequency, (100KHz) is cut lesion tissue by lower temperature (40-70 DEG C), is melted, and realizes Mild wound.
Although existing urethral stricture operation plasma electric cutting knife has developed into quite high level, but still there is following defect: 1) cutting electrode be positioned at electric knife top and outside being exposed to completely, when cutting endo-urethral lesion tissue, melting, cutting electrode also can cause 360 degree of damage to the normal structure of urethra surrounding; 2) because cutting electrode is cylindrical, top has acute angle, electric knife when through narrow mouth, easily through normal structure formed via, and then cause even more serious recurrent urethral stricture; 3) electric knife operation consent is being used, usually need first to arrive at operative site with a thinner seal wire through urethra, then under the guiding of seal wire, again electric knife is delivered to operative site through urethra, and the step of wearing electric knife needs to operate very accurately, add the difficulty of operation, in addition, cutting electrode also likely touches seal wire, causes seal wire to burn out and even ruptures.
Summary of the invention
The object of the invention is for above-mentioned defect, provide one can not perform the operation time damaging normal tissue, can not be formed when penetrating electric knife via, be conducive to reduce operation easier, alleviate patient suffering nothing via urethral stricture directional plasma electric knife.
Above-mentioned purpose is achieved through the following technical solutions:
Nothing is via urethral stricture directional plasma electric knife; comprise cutting electrode, loop electrode, conduit; ceramic insulating tube is provided with between described cutting electrode and loop electrode; one end of described ceramic insulating tube is provided with arced ceramic protective sleeve, and described arced ceramic protective sleeve is coated on the side of cutting electrode.
The top of described arced ceramic protective sleeve is provided with ceramic cryoprobe.
Described ceramic cryoprobe is triangular pyramidal.
Described ceramic insulating tube, arced ceramic protective sleeve, ceramic cryoprobe are formed in one.
Described arced ceramic protective sleeve is provided with the thread eye axially parallel with cutting electrode.
The invention has the beneficial effects as follows:
1) by establishing arced ceramic insulating trip, thus coming isolated for the normal structure in cutting electrode and human urethra, forming electrode directional work surface, effectively prevent the damage of cutting electrode normal tissue.
2) ceramic cryoprobe can guide electric knife to arrive at lesion tissue more smoothly, avoid being formed in urethra via, thus reduce the risk of recurrent urethral stricture; Ceramic cryoprobe also helps and cuts lesion tissue simultaneously.
3) after penetrating seal wire; the thread eye on ceramic protective sleeve can be utilized; by the end of seal wire through thread eye; electric knife can arrive at lesion tissue along seal wire; thus significantly reduce difficulty and the risk of failure of operation technique; simultaneously also can by seal wire and cutting electrode completely isolated, avoid seal wire to be burned fracture.
4) guiding, cold cut, directed TURP function are integrated in one by the ceramic head of integration, operation process is accomplished without any letup, significantly shorten operating time, decrease patient suffering and operation risk, accelerate the universal of complicated highly difficult urethral stricture Minimally Invasive Surgery and promote, for a large amount of urethral stricture patient brings glad tidings.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of arced ceramic protective sleeve and ceramic cryoprobe in the present invention.
Fig. 3 is the structural representation of the existing urethral stricture operation plasma electric cutting knife introduced in background technology.
In figure: 1-cutting electrode, 2-loop electrode, 3-ceramic insulating tube, 4-arced ceramic protective sleeve, 5-conduit, 6-pottery cryoprobe, 7-thread eye.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is described in detail.
Embodiment; as shown in Figure 1, 2; a kind of nothing is via urethral stricture directional plasma electric knife; comprise cutting electrode 1, loop electrode 2, conduit 5; be provided with ceramic insulating tube 3 between described cutting electrode 1 and loop electrode 2, one end of described ceramic insulating tube 3 is provided with arced ceramic protective sleeve 4, and described arced ceramic protective sleeve 4 is coated on the side of cutting electrode 1; / 2nd of a described cutting electrode 1 is wrapped in arced ceramic protective sleeve 4, outside remaining half is exposed to.
The top of described arced ceramic protective sleeve 4 is provided with ceramic cryoprobe 6, and described ceramic cryoprobe 6 is triangular pyramidal, and outwards, cone bottom lives cutting electrode 1 to cone point.Described ceramic insulating tube 3, arced ceramic protective sleeve 4, ceramic cryoprobe 6 are formed in one, and described arced ceramic protective sleeve 4 is provided with the thread eye 7 axially parallel with cutting electrode 1.
Carrying out urethral stricture operation consent, first penetrating urethra with a thin seal wire and arrive at lesion tissue, then the end of seal wire is penetrated thread eye 7, electric knife can arrive at operative site along seal wire and cut lesion tissue, melts.
The present invention can improve operative effect, reduces complication; Surgical wound surface is smooth, prevents postoperative infection, urethral stricture to recur; Intraoperative hemorrhage is less, can avoid damaging sphincter of urethra, effectively prevent the generation of postoperative urinary incontinence; Applied widely, as long as guide pin can be inserted smoothly under direct-view, all can use, not bend by urethra, the restriction of urethral stricture length.
The present invention is adopted to carry out performing the operation all once successful.Operating time 20 ~ 100min, average 40min.Intraoperative hemorrhage <20ml, in art, postoperatively to occur without severe complication.Follow up a case by regular visits to 2 ~ 13 months, unobstructed micturition, recur without urethral stricture; The emptying of concurrent vesical calculus person's calculus; Renal insufficiency person graft function is normal.
Claims (5)
1. without via urethral stricture directional plasma electric knife; comprise cutting electrode (1), loop electrode (2), conduit (5); ceramic insulating tube (3) is provided with between described cutting electrode (1) and loop electrode (2); it is characterized in that: one end of described ceramic insulating tube (3) is provided with arced ceramic protective sleeve (4), and described arced ceramic protective sleeve (4) is coated on the side of cutting electrode (1).
2. as claimed in claim 1 without via urethral stricture directional plasma electric knife, it is characterized in that: the top of described arced ceramic protective sleeve (4) is provided with ceramic cryoprobe (6).
3. as claimed in claim 2 without via urethral stricture directional plasma electric knife, it is characterized in that: described ceramic cryoprobe (6) is triangular pyramidal.
4. as claimed in claim 2 without via urethral stricture directional plasma electric knife, it is characterized in that: described ceramic insulating tube (3), arced ceramic protective sleeve (4), ceramic cryoprobe (6) are formed in one.
5. as claim 1-4 as described in any one without via urethral stricture directional plasma electric knife, it is characterized in that: described arced ceramic protective sleeve (4) is provided with the thread eye (7) axially parallel with cutting electrode (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665528.0A CN104323855B (en) | 2014-11-20 | 2014-11-20 | Without via urethral stricture directional plasma electric knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665528.0A CN104323855B (en) | 2014-11-20 | 2014-11-20 | Without via urethral stricture directional plasma electric knife |
Publications (2)
| Publication Number | Publication Date |
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| CN104323855A true CN104323855A (en) | 2015-02-04 |
| CN104323855B CN104323855B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410665528.0A Active CN104323855B (en) | 2014-11-20 | 2014-11-20 | Without via urethral stricture directional plasma electric knife |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222066A (en) * | 1996-06-20 | 1999-07-07 | 盖拉斯医疗有限公司 | Under water treatment |
| US6113594A (en) * | 1996-07-02 | 2000-09-05 | Ethicon, Inc. | Systems, methods and apparatus for performing resection/ablation in a conductive medium |
| US6517534B1 (en) * | 1998-02-11 | 2003-02-11 | Cosman Company, Inc. | Peri-urethral ablation |
| CN2855340Y (en) * | 2006-03-29 | 2007-01-10 | 中国人民解放军第三军医大学第一附属医院 | Cold blade internal incision device for urethrostenosis operation |
| CN202397556U (en) * | 2011-12-02 | 2012-08-29 | 潘向东 | Guider for cutting open stricture of urethra |
| CN202723980U (en) * | 2012-08-16 | 2013-02-13 | 珠海市司迈科技有限公司 | Rod-shaped cutting electrode of resectoscope |
| CN204274638U (en) * | 2014-11-20 | 2015-04-22 | 武汉唐济科技有限公司 | Nothing is via urethral stricture directional plasma electric knife |
-
2014
- 2014-11-20 CN CN201410665528.0A patent/CN104323855B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222066A (en) * | 1996-06-20 | 1999-07-07 | 盖拉斯医疗有限公司 | Under water treatment |
| US6113594A (en) * | 1996-07-02 | 2000-09-05 | Ethicon, Inc. | Systems, methods and apparatus for performing resection/ablation in a conductive medium |
| US6517534B1 (en) * | 1998-02-11 | 2003-02-11 | Cosman Company, Inc. | Peri-urethral ablation |
| CN2855340Y (en) * | 2006-03-29 | 2007-01-10 | 中国人民解放军第三军医大学第一附属医院 | Cold blade internal incision device for urethrostenosis operation |
| CN202397556U (en) * | 2011-12-02 | 2012-08-29 | 潘向东 | Guider for cutting open stricture of urethra |
| CN202723980U (en) * | 2012-08-16 | 2013-02-13 | 珠海市司迈科技有限公司 | Rod-shaped cutting electrode of resectoscope |
| CN204274638U (en) * | 2014-11-20 | 2015-04-22 | 武汉唐济科技有限公司 | Nothing is via urethral stricture directional plasma electric knife |
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| Publication number | Publication date |
|---|---|
| CN104323855B (en) | 2017-01-04 |
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Effective date of registration: 20180823 Address after: 430072 Wuhan University, Luojia mountain, Wuchang District, Wuhan, Hubei Co-patentee after: WUHAN TANGJI TECHNOLOGY Co.,Ltd. Patentee after: WUHAN University Address before: 430000 the Great Wall Garden Road, East Lake New Technology Development Zone, Wuhan, Hubei 8 Patentee before: WUHAN TANGJI TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220713 Address after: 430072 Hubei Province, Wuhan city Wuchang District of Wuhan University Luojiashan Patentee after: WUHAN University Patentee after: Wuhan Tangji Medical Technology Co.,Ltd. Address before: 430072 Hubei Province, Wuhan city Wuchang District of Wuhan University Luojiashan Patentee before: WUHAN University Patentee before: WUHAN TANGJI TECHNOLOGY Co.,Ltd. |