Fiberoptic ductoscopy mirror sheath electroblation biopsy deviceTechnical field
The present invention relates to medical instruments fields, especially provide a kind of fiberoptic ductoscopy mirror sheath electroblation biopsy device.
Background technique
Fiberoptic ductoscopy has been conventionally applied to the diagnosis of lesion in latex dust, but fiberoptic ductoscopy can only find occupy-place venereal disease in latex dustBecome, how to carry out the accurate Biopsy under fiberoptic ductoscopy, there is presently no effective device and method.
During duct endoscopy operation, common accessory includes: mirror sheath, crossover sub, positioning crochet hook, biopsy mesh basketDeng.
Before this, biopsy method is cut off under existing fiberoptic ductoscopy has:
1, it is opened a window by mirror sheath front end side wall, window is sharp, space occupying lesion in latex dust is placed in mirror sheath side wall window, benefitWith the back-and-forth motion of mirror sheath, lesion in latex dust is cut off.The disadvantages of this method mainly has: since space occupying lesion shape is not in latex dustRule, position are not fixed, and enter lesion completely difficult in window；Window sharpness is often inadequate, can not be successfully cuttingIt completes；The sample of excision is easy to fall off into latex dust distal end, causes sample to take out difficult.Due to the above problems, causingThis method success rate is not high, carry out this method can not clinically extensively.
2, by mesh basket biopsy, biopsy mesh basket is grabbed in latex dust under fiberoptic ductoscopy monitoring after space occupying lesion, passes through rotationAnd drawing cuts off space occupying lesion in latex dust to realize.The method is only applicable to the lesion with the base of a fruit, and due to the base of a fruit of space occupying lesionIt is simple to be difficult detachment by drawing, cause the success rate of this method also not high, can not equally carry out extensively.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of fiberoptic ductoscopy mirror sheath electroblation biopsy devices, with realitySpace occupying lesion in existing electric knife excision latex dust.
Technical solution of the present invention is as follows:
A kind of fiberoptic ductoscopy mirror sheath electroblation biopsy device, which is characterized in that described device is made of mirror sheath 1 and electric knife 2, mirrorSheath 1 is the tubular structure that section is round or oval, and front end is bevel structure；Electric knife 2 crosses the inclined-plane knot of 1 front end of mirror sheathStructure, or be overlapped with bevel structure low dot location arc, 2 both ends of electric knife are connected with mirror sheath, and electric knife 2 is located at mirror sheath front end incline positionLower side；
Electric knife 2 is connected by conducting wire and is connected with mirror sheath external power, and conducting wire is preferably disposed in mirror sheath pars intramuralis.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: described device is additionally provided with fiberoptic ductoscopy 5,Fiberoptic ductoscopy 5 is inserted into mirror sheath 1 and uses.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: described device is additionally provided with positioning crochet hook6, positioning crochet hook 6 is inserted into mirror sheath 1 when use and is used, to fix occupying lesion in latex dust, and formed certain tension withIt conducive to electric knife 2 with mirror sheath 1 to newborn in-pipe, removal lesion tissue, while preventing the sample of excision from falling off, can not take out.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: described device is additionally provided with irrigating catheterAnd negative pressure catheter, irrigating catheter and negative pressure catheter are inserted into the intrathecal use of mirror.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: described device tail portion is additionally provided with multi-passRoad crossover sub, to guarantee the extraction respectively of fiberoptic ductoscopy 5, positioning crochet hook 6, irrigation channel (conduit) and attraction channel (conduit),And mutually close linking.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: 1 interior of mirror sheath can also be setThere are irrigation channel 3 and/or attraction channel 4, irrigation channel 3 is carried out for continuing saline injection or air etc. into mirror sheath 1Local douche, attraction channel 4 is for attracting waste in latex dust；Irrigation channel 3 and 4 preferred design of attraction channel are in mirror sheath wallPortion makes the saved space of 1 internal segment of mirror sheath be mainly used for accommodating fiberoptic ductoscopy 5, positioning crochet hook 6.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: irrigation channel 3 and attraction channel 4 are setIt counts when mirror sheath pars intramuralis, close to 1 front end inclined-plane low spot horizontal plane Shi Xiangjing sheath inner opening of mirror sheath, is used for local douche and suctionBlood and smog are drawn, clearly to show occupy-place in latex dust, while while avoiding operation is repeatedly inserted into irrigating catheter and negative pressure catheterThe occupied time creates bigger space to accommodate space occupying lesion in latex dust.
Fiberoptic ductoscopy mirror sheath electroblation biopsy device of the present invention, it is characterised in that: the electric knife 2 is preferably arc, andIt is unlimited close to 1 inclined-plane minimum point of mirror sheath, or is overlapped with bevel structure low dot location arc, so that electric knife 2 can be from latex dustThe root of interior pathological tissues is cut off, at the same also reduce fiberoptic ductoscopy 5, positioning crochet hook 6 when being inserted into work and electric knife 2 collide withAnd fiberoptic ductoscopy 5 and mirror sheath 1 lead to the probability of impaired destruction when being inserted into latex dust together.
Since electric knife 2 is located at the 1 lower side of front end incline position of mirror sheath, when being operated under 5 mirror of fiberoptic ductoscopy, mirror sheath 1 byThen it covers in the outside of fiberoptic ductoscopy 5,5 camera lens front end of fiberoptic ductoscopy is slightly below the low spot on 1 front end inclined-plane of mirror sheath, keeps 1 front end of mirror sheath obliqueRelatively-stationary gap is formed between the high point in face, the low spot-electric knife and latex dust lens head on mirror sheath front end inclined-plane, appearance can be facilitatedIt receives occupying lesion in latex dust, carries out Biopsy operation.
Detailed description of the invention
Fig. 1 mirror sheath and electric knife positional diagram.
Fig. 2 fiberoptic ductoscopy mirror sheath electroblation biopsy device structure diagram.
Fig. 3 fiberoptic ductoscopy mirror sheath electroblation biopsy device structure diagram (having channel).
Fig. 4 fiberoptic ductoscopy mirror sheath electroblation biopsy device structure diagram (no channel).
1, mirror sheath, 2, arc formula electric knife, 3, irrigation channel, 4, attraction channel, 5, fiberoptic ductoscopy, 6, positioning crochet hook, 7, multichannelCrossover sub, 8, irrigating catheter, 9, negative pressure catheter.
Specific embodiment
Embodiment 1
As shown in Figure 1-3, a kind of fiberoptic ductoscopy mirror sheath electroblation biopsy device, is made of mirror sheath 1 and electric knife 2, in which:
Mirror sheath 1 is the tubular structure that section is round or oval, and front end is bevel structure.
Electric knife 2 is arc, and both ends are connected with mirror sheath 1, and electric knife 2 is located at the 1 lower side of front end incline position of mirror sheath；MakeUsed time, the horizontal position of a little higher than latex dust lens head of mirror sheath inclined-plane low dot location.
Electric knife 2 is connected with conducting wire, and conducting wire is placed in the 1 pars intramuralis traveling of mirror sheath, and nearly 1 tail portion Shi Yujing sheath 1 of mirror sheath separates, and withExternal power is connected.
1 pars intramuralis of mirror sheath is additionally provided with irrigation channel 3 and attraction channel 4, and two channels are close to 1 front end inclined-plane low spot water of mirror sheathFlat place is inwardly open on the inside of sheath wall.
Described device is additionally provided with multichannel crossover sub 7 (four-way), for logical with fiberoptic ductoscopy 5, positioning crochet hook 6, flushingRoad 3 is connected with attraction channel 4, has the function that closely to be connected.
Concrete operations:
In use, fiberoptic ductoscopy 5 is inserted into mirror sheath 1 first, then the two to be inserted into lesion together where in latex dust, pass throughFiberoptic ductoscopy 5 searches out lesion in latex dust；It is placed in positioning crochet hook 6 through multichannel crossover sub 7, lesion in latex dust is caught on into fixation,And it draws outward；It is powered to electric knife 2, further moving lens sheath 1, making arc electric knife 2 with mirror sheath 1, the direction into latex dust is mobile, willOccupying lesion complete resection in latex dust；If there is bleeding or the big influence operation of smog, then the flushing using mirror sheath inner wall is needed(irrigating catheter and negative pressure catheter are introduced with suction function by multichannel crossover sub 7, irrigation channel 3 is respectively toward to and attractsChannel 4), to guarantee the clear of the visual field.When sample takes out, needs to position crochet hook 6 and extracted with mirror sheath 1 is outer together.
Embodiment 2
Difference from example 1 is that:
As shown in figure 4,1 inner wall of mirror sheath does not have irrigation channel 3 and attraction channel 4, but uses irrigating catheter 8 and inhaleGuiding tube 9 realizes corresponding function, irrigating catheter 8 and the negative pressure catheter 9 through multichannel crossover sub 7 (triple channel) separately or concurrentlyIt is inserted into mirror sheath 1, to realize I & A function.
Embodiment 3
Difference from example 1 is that:
The irrigation channel 3 and attraction channel 4 of 1 inner wall of mirror sheath merge into a channel, when needing to rinse, will rinseConduit is inserted into the channel through multichannel crossover sub and is rinsed, and when needing to attract, irrigating catheter is extracted out, by negative pressure catheterIt is inserted into the channel through multichannel crossover sub (triple channel) to be attracted, to realize I & A function.
Embodiment 4
Difference from example 1 is that:
The electric knife 2 is overlapped with 1 bevel structure low dot location arc of mirror sheath, with the further occupy-place out of root excision latex dustVenereal disease becomes.
Embodiment 5
With embodiment 4 the difference is that:
The electric knife 2 is overlapped with 1 bevel structure low dot location arc of mirror sheath, and 1 bevel structure low dot location of mirror sheath have it is scarceMouthful, i.e., there is gap between 1 wall front end of electric knife 2 and mirror sheath.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the artScholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present inventionEquivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
In addition, there is omitted herein to descriptions of well-known structures and technologies, so as not to unnecessarily obscure the concept of the present invention.