Guided cutter assembly and conductor thereofTechnical field
The present invention relates to micro-wound surgical operation apparatus, particularly to a kind of guided cutter assembly and conductor thereof.
Background technology
Flexor digitorum muscle of hand tendon de Quervain's disease is orthopaedics commonly encountered diseases, and the factor such as cause of disease system repetitive stain injury or cold stimulation is ledCause flexor digitorum muscle of hand tendon slidinjg board A 1 hypertrophy, plumpness, and then make flexor digitorum muscle of hand tendon thecostegnosis, oppress tendon and cause tendon waterSwollen, hinder tendon to slide, suffer from and refer to that normal pain is uncomfortable, severe patient may occur in which locked joint.
At present, in clinical medicine works, Wicresoft's loosening therapy of flexor digitorum muscle of hand tendon de Quervain's disease is applied increasinglyExtensively.Comparing traditional open surgery, Minimally Invasive Surgery has the advantages such as operative incision is little, treatment cycle is short, state of an illness recovery is fast.The modus operandi of minimally-invasive treatment is various, and the core operating theater instruments related to is the most of a great variety, wherein more the including of clinical practiceSmall needle knife, self-control billhook, improvement Kirschner wire, syringe needle, self-control push away cutter etc..
But, existing less invasive techniques has a disadvantage in that 1. can not look at straight down due to Minimally Invasive Surgery and confirm, for tendonIt is complete, thorough whether sheath A1 coaster loosens, and can only depend in the subjective sensation of operator and art patient's finger movementThe inspection situation of function, lacks objective and accurate judging basis, causes some patients disease relapse；2. direction of feed and cutting sideFormula is incorrect, easily causes flexor tendon injury, fracture, adhesion and refers to the damage etc. of nerve and blood vessel；3. carry out under " blind depending on "Operation technique, requires higher to clinical experience, operation sensation and the topography mastery of knowledge degree of operator, and surgical deviceThe custom of the selection gist patient of tool, feed point and cutting mode and have nothing in common with each other, subjective, lack objective unified behaviourMake treatment standard, cause surgical technic to be unfavorable for popularizing；4. blade is that the flat edge cutter of flat type often can only lean on doctor pastPulling back realization cutting, and pull back and need upwards to lift, dynamics is grasped and with great difficulty other positions is not caused damage.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the operating theater instruments of existing tenosynovitis Minimally Invasive Surgery to operatorClinical experience, operation sensation and topography mastery of knowledge degree require higher deficiency, the present invention provides a kind of guidingType cutter assembly and conductor thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of conductor, including guidance part, and described guidingPortion is the bending shape of rounding off, and described guidance part offers a blade track, and described blade track extends to guidance partEnd, and the distal portion of guidance part has an inclined-plane, described inclined-plane and described blade track are positioned at the same side of guidance part, and instituteStating inclined-plane makes the thickness of guidance part be gradually reduced to the direction of its end.
Described blade track matches with the bending shape of guidance part.
The guidance part outer surface of described blade track both sides has scale.
Also include that Handheld Division, described Handheld Division are connected with the front end of guidance part.
A kind of guided cutter assembly, including described conductor and cutter, described cutter includes blade, described blade oneSide is blade, and side relative with blade on blade is slip side, described slip side and the blade slide of described conductorConnect.
When described slip side and blade rail contact, the blade of described cutter completely or partially externally protrudes out in blade track.
The slip side of described blade is curved.
The blade of described blade is the arc of recessed arc or epirelief.Flat edge cutter by an existing flat shapeDeveloping and become the cutter of two kinds of blades, convex surface line curved blade can push away forward realization cutting, and concave surface line curved blade can be toPost-tensioning realizes cutting, and toward self-assembling formation cutting during post-tensioning, it is not necessary to upwards lifting, dynamics is easily mastered.
The invention has the beneficial effects as follows, the guided cutter assembly of the present invention and conductor thereof:
1., compared with traditional open incision of tendon sheath, apply the guided cutter assembly of the present invention and the micro-of conductor thereofWound lysis has the advantages such as otch is little, wound is light, treatment cycle is short, state of an illness recovery is fast, and operation technique is more rapid, easy, handsArt doctor can complete alone in outpatient service, and medical expense is the lowest simultaneously, and patient is more easily accepted by.
2. push away the operating theater instruments such as cutter with conventional small needle knife, self-control billhook, improvement Kirschner wire, syringe needle, self-controlComparing, the guided cutter assembly of the present invention is made up of conductor and cutter detachable, that install, and conductor possesses to be detected, calmlyPosition, guide, strut, protect, the multi-functional such as measurement, its design is more for the shortcoming and defect of existing less invasive techniques, by leadingLead device positions accurately, guide function and the protective effect of safety, flexor tendon is reduced or avoided, refers to the structures such as neural blood vesselAccessory injury, and utilize its scale to measure function, whether A1 coaster in art is loosened provide completely accurately, the judge mark of scienceStandard, to reduce postoperative disease relapse rate.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the conductor optimum embodiment of the present invention.
Fig. 2 is the structural representation of the cutter embodiment 1 of the present invention.
Fig. 3 is the structural representation of the cutter embodiment 2 of the present invention.
In figure 10, guidance part, 11, blade track, 12, inclined-plane, 13, scale, 20, Handheld Division, 30, blade, 31, blade,32, slip side.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only withThe basic structure of the illustration explanation present invention, therefore it only shows the composition relevant with the present invention.
As it is shown in figure 1, a kind of conductor, including guidance part 10 and Handheld Division 20, described guidance part 10 is rounding offBending shape, described guidance part 10 offers a blade track 11, and described blade track 11 extends to the end of guidance part 10, instituteStating blade track 11 to match with the bending shape of guidance part 10, blade track 11 is arc.Described blade track 11 both sidesGuidance part 10 outer surface has scale 13.
The distal portion of guidance part 10 has inclined-plane 12, and described inclined-plane 12 is positioned at guidance part 10 with described blade track 11The same side, and described inclined-plane 12 makes the thickness of guidance part 10 be gradually reduced to the direction of its end.Described Handheld Division 20 and guidingThe front end in portion 10 connects.
As shown in Figure 2 and Figure 3, the cutter of the present invention, including blade 30, described blade 30 side is blade 31, on blade 30The side relative with blade 31 is slip side 32, and described slip side 32 is curved.Fig. 2, Fig. 3 are respectively the blade 31 of blade 30Recessed arc and the structural representation of the cutter of the arc of epirelief, blade 31 is that the cutter of recessed arc can be as choosing typeCutter, blade 31 is that the cutter of the arc of epirelief can be as push type cutter.
A kind of guided cutter assembly, including described conductor and cutter, described cutter includes blade 30, described blade30 sides are blade 31, and side relative with blade 31 on blade 30 is slip side 32, described slip side 32 and described conductorBlade track 11 be slidably connected.When described slip side 32 contacts with blade track 11, the blade of described cutter 31 is all or portionDivide and externally protrude out in blade track 11.The slip side 32 of described blade 30 is curved, as shown in Figure 2 and Figure 3, and the blade of described blade 3031 is the arc of recessed arc or epirelief.
In the present invention, cutter is detachable relative to conductor, installation, and patient uses conductor to insert stndon sheath swelling position,Being confirmed whether to be between tendon and stndon sheath, compare and directly use blade to insert, conductor will not produce the cutting of mistake.CauseThis, conductor possess detect, position, guide, strut, protect, the multi-functional such as measurement, and conductor is provided with blade track11, in order to install and to import cutter blade 30, complete the cutting to stndon sheath A1 coaster, loosen.
In operative process, it is first determined suffer from the body surface location point referring to A1 coaster near-end, as feed point, will leadGuidance part 10 end of lead device is inserted through otch, utilizes its inspection functionality, positions A1 coaster near-end, by the guidance part 10 of conductorEnd inserts A1 coaster bottom side, is designed the flexor tendon tissue point of A1 coaster with bottom side by the inclined-plane 12 of guidance part 10 endFrom, strut, after blade track 11 on conductor cutter blade 30 is installed, and it is near that blade 30 is accurately directed to A1 coasterEnd, carries out cutting, loosening.Owing to A1 coaster is fully strutted so that cutting process is more convenient, conductor can be by simultaneouslyThe flexor tendon of cutter and bottom side, the important feature such as finger neural blood vessel of both sides intercept completely, thus efficiently avoid because of cuttingDirection is inaccurate and causes tendon, nerve, the isostructural Accessory injury of blood vessel.Complete the cutting to A1 coaster proximal part, pineXie Hou, conductor end continues to stretch into A1 coaster far-end, strut, stretches into, struts and cut, loosens alternately, until willA1 coaster is loosened completely.
The guidance part outer surface of blade track 11 both sides of conductor is provided with scale 13, it is possible to accurately measure conductor andThe length that cutter is inserted, owing to the A1 coaster width of each finger is respectively present fixed value scope, is contrasted by numerical value, just can be blindWhether loosen completely depending on lower accurate judgement A1 coaster.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is completeEntirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this inventionThe content that property scope is not limited in description, it is necessary to determine its technical scope according to right.