A kind of interventional operation equipment guiding instrument
Technical field
The present invention relates to a kind of guiding device, particularly about a kind of interventional operation equipment guiding instrument.
Background technology
Interventional therapy is to use a kind of invasive treatment that modern high tech method carries out, and it is under the guiding of medical imaging device, and accurate apparatus such as special conduit, seal wire is introduced human body, and internal lesions is diagnosed and topical therapeutic.Most projects of interventional therapy are all carried out in blood vessel, it need not be operated on, only need one less than the big little openning of the grain of rice, tubule insert can treat in the blood vessel manyly can't treat in the past, must operative treatment or the not good enough disease of medical treatment curative effect, as coronary heart disease, arrhythmia, tumor, hemangioma, various hemorrhage, cerebrovascular malformation etc.In traditional intervene operation, the location of operation device and lesions position, mainly be to rely on the doctor by means of the lesion image in the perusal magnetic resonance image (MRI), the doctor relies on surgical experience that operating theater instruments is placed into the target location, can not accurately locate between operation device that this mode causes and the lesions position location, surgical effect is difficult to guarantee, and patient suffers big painful.
The applicant provides a kind of doctor of the making focus that the while can be seen on screen and the interventional navigation system of puncture needle relative position for this reason, needs the interventional operation equipment guiding instrument that can adjust flexibly in this system.
Summary of the invention
The purpose of this invention is to provide a kind of influence that can avoid the shake of operator's hand to bring, reduce operating theater instruments bending in the piercing process, the interventional operation equipment guiding instrument of flexible and convenient operation.
For achieving the above object, the present invention takes following technical scheme: a kind of interventional operation equipment guiding instrument is characterized in that: it comprises the lower carriage assembly, entablature assembly, recliner assembly and intervention arrangement for guiding; Described lower carriage assembly comprises base, is arranged on the standpipe on the described base, and is sheathed and be locked at last arm in the described standpipe; Described entablature assembly comprises sheathed and is locked at the described outer T junction of arm of going up, is located in crossbeam and the union joint that is arranged on described crossbeam one end in the described T junction; Described recliner assembly comprises a housing that connects described union joint, be arranged on the intravital ball journal of described shell, vertical and side direction are connected the depress spiro rod and the thruster screw rod of described ball journal respectively, are arranged on the fine-tuning nut that described case top and sidepiece are connected described depress spiro rod and thruster screw rod respectively; Be arranged on the handwheel and the rebound of the external part of described ball journal; Described intervention arrangement for guiding comprises the outer folder holder that connects described rebound, locking be arranged on interior folder holder in the described outer folder holder and locking be arranged on described in puncture needle in the folder holder.
Described standpipe is fixed on described base top, one outer housing that is fixed on the described base is set in the outside of described standpipe, at described standpipe middle part and outer housing top one fairlead is set respectively, in described fairlead, plug one described on arm, a described side that goes up arm is provided with a tooth bar, in the described outer housing of described riser top, be provided with one with described tooth bar meshed gears, with the coaxial sprocket wheel that is provided with of described gear, in the bottom of described standpipe another sprocket wheel is set, connect a chain between described two sprocket wheels, described chain in the outside is fixed a counterweight, and inboard described chain passes described counterweight.
The crossbeam joint of described entablature assembly comprises a connecting column, and one is arranged on the intermediary cover of wedge of described connecting column, and one is arranged on the T junction of described cover of wedge outside, and described cover of wedge is fixedlyed connected by screw with T junction and is integral; Two voussoirs penetrate described cover of wedge from described connecting column both sides respectively, and two baffle plates are fixed on the described connecting column from two ends by screw respectively; In described two voussoirs that one screw rod with left and right hand thread is connected, described screw rod end has rotary handle.
Be provided with upper and lower ball seat in the housing of described recliner assembly, the bulb of described ball journal is arranged between the described upper and lower ball seat; Described thruster screw rod and depress spiro rod connect a swing set respectively, and two described swing sets are sheathed and be fixed on the described ball journal; With sidepiece one fine-tuning nut that is connected described thruster screw rod and depress spiro rod is set respectively at the top of described housing; The fixedly connected transition axis in the end of described ball journal, a described handwheel and a rebound are separately fixed on the described transition axis; Relative with described transition axis, at the other end of described housing one connecting axle is set, described connecting axle connects the union joint of described entablature assembly.
Described intervention arrangement for guiding comprises two hinged outer pin cards, and pin card in two is set in the pin card outside described two, wears puncture needle in the pin card in described two; Wherein the described outer pin card of a side is fixedlyed connected with the rebound of entablature with interior pin card and is integral, and the outer pin cartoon of opposite side is crossed a screw two outer pins are fastened together.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention since be provided with at least 10 can be for the degree of freedom of adjusting, therefore can very convenient focus of exactly puncture needle being aimed at the patient, and insert lesions position easily.2, therefore the present invention can open inside and outside pin card easily owing to taking split type intervention arrangement for guiding, satisfies the puncture needle of changing different size, particularly can satisfy the equipment that uses, rapid requirement at the different parts contact pin.3, the present invention adopts spherical hinge structure in recliner, can realize the fine motion adjustment of both direction, makes structure compact more, and overall dimensions greatly reduces.4, the present invention is provided with the structure of tooth bar, gear, sprocket wheel, balancing weight in lower carriage, by adjusting the weight of balancing weight, tooth bar is complementary with the weight on top and the weight of balancing weight, therefore can be easy and convenient especially when adjusting up and down.5, the present invention adjusts the position revolute and moving sets all adopts nonmetallic materials throughout, makes full use of the characteristics of its self-lubricating, make each movable secondary activity freely, light, volume is lighter and handier.
Description of drawings
Fig. 1 is a structural upright sketch map of the present invention
Fig. 2 is a lower carriage assembly sketch map of the present invention
Connection diagrams such as arm, fairlead, shell, gear in Fig. 3 the present invention
Fig. 4 is the schematic top plan view of Fig. 3
Fig. 5 is an entablature structural representation of the present invention
Fig. 6 is the joint design sketch map of entablature of the present invention and lower carriage junction
Fig. 7 is the joint design sketch map of entablature of the present invention and recliner junction
Fig. 8 is a recliner schematic perspective view of the present invention
Fig. 9 is a recliner structural representation of the present invention
Figure 10 is a recliner cross-sectional schematic of the present invention
Figure 11 is the side-looking cross-sectional schematic of Figure 10
Figure 12 gets involved the arrangement for guiding sketch map
The specific embodiment
By the following examples and in conjunction with the accompanying drawings structure of the present invention is described in detail.
As shown in Figure 1, the present invention includes lower carriage assembly 10, entablature assembly 30, recliner assembly 50 and intervention arrangement for guiding 70.
Shown in Fig. 2~4, lower carriage assembly 10 of the present invention comprises that one has the base 11 of constant weight, and the bottom of base 11 is provided with four rolling 12, in order to support and to make things convenient for push-and-pull to move entire equipment.The fixedly connected standpipe 13 at base 11 tops is provided with an outer housing 14 of fixedlying connected with base 11 in the outside of standpipe 13.Middle part and outer housing 14 topmosts at standpipe 13 are provided with a fairlead 15,16 respectively, plug arm 17 in two fairleads 15,16.One side of last arm 17 is provided with tooth bar 18.In the outer housing 14 on standpipe 13 tops, be provided with one with tooth bar 18 meshed gears 19, with the gear 19 coaxial sprocket wheels 20 that are provided with, another sprocket wheel 21 is set in the bottom of standpipe 13, on two sprocket wheels 20,21 around a chain 22, a fixedly connected counterweight 23 on the side chain bar 22 outside, inboard chain 22 passes the opposite side of counterweight 23.The setting principle of counterweight 23 is: upward arm 17 reaches weight and the counterweight 23 formation dynamic equilibrium with upper-part, like this, if there is external force upwards to promote when going up arm 17 or pressing arm 17 downwards, tooth bar 18 on the last arm 17 just can driven gear 19, sprocket wheel 20,21 and chain 22 rotate, counterweight 23 is moved up and down, reach the dynamic equilibrium of another location; This moment since the power that the operator uses only for overcoming the frictional force between gear 19 and the tooth bar 18, so the operator be promote or under press arm 17 all can be very brisk laborsaving.For preventing to cause mobilely touching arm 17 unintentionally, a handle 24 that passes outer housing 14 is set, after last arm 17 and lower carriage assembly 10 are adjusted, on outer housing 14 to make things convenient for locking positioning.
As Fig. 5, shown in Figure 6, entablature assembly 30 of the present invention comprises that a connecting column 31, is arranged on the T junction 33 that connecting column 31 intermediary covers of wedge 32, are arranged on cover of wedge 32 outsides, and cover of wedge 32 is fixedlyed connected by a plurality of screws with T junction 33 and is integral.Two voussoirs 34,35 penetrate cover of wedge 32 from the both sides of connecting column 31 respectively, and two baffle plates 36,37 are fixed on the connecting column 31 by a plurality of screws from two ends respectively.One stop nut 38 is screwed onto in the center screw of baffle plate 37, the end of stop nut 38 withstands on the voussoir 35, one screw rod 40 with rotary handle 39 is connected in the center screw of two voussoirs 34,35, and one of the center screw of two voussoirs 34,35 is left-handed, a dextrorotation, when therefore corresponding with the two screw rod 40 rotated, two voussoirs 34,35 can relative motion, and then locking or unclamp cover of wedge 32 and be fixed on T junction 33 on the cover of wedge 32.Fixedly connected with last arm 17 tops with a nylon jacket 42 by a locking nut commonly used 41 in connecting column 31 bottoms.
As Fig. 5, shown in Figure 7, in T shape cover 33, wear a crossbeam 43, the two ends of T shape cover 42 also adopt locking nut commonly used to fixedly connected with crossbeam 43 with nylon jacket.The end that entablature assembly 30 is connected with recliner 50 is provided with an elbow 44, the transition axis 46 that is connected by key and keyway 45 in elbow 44, one adjusts cover 47 by being threaded on the transition axis 46, outside at transition axis 46 overlaps 48 by one group of three lobe, an end of 47 is overlapped in connecting bend 44 and adjustment simultaneously, crossbeam 43 end internal fixation connect a swivel nut 49, and swivel nut 49 is plugged in crossbeam 43 and adjusts in the cover 47, and rotating beam 43 can be fixed on swivel nut 49 on the transition axis 46.
Shown in Fig. 8~11, recliner assembly 50 of the present invention comprises a housing 51, at housing 51 1 ends one connecting axle 52 is set, the axle center of relative connecting axle 52, the one upper and lower ball seat that links into an integrated entity 53,54 is set in housing 51, the bulb of one ball journal 55 is set in upper and lower ball seat 53,54, at the top of housing 51 and sidepiece one depress spiro rod 58 and the thruster screw rod 59 that drives by fine-tuning nut 56,57 is set respectively, the bottom of depress spiro rod 58 and thruster screw rod 59 is provided with a swing set 60,61 that is connected ball journal 55 respectively.Connect a transition axis 62 in the end of ball journal 55, connect a handwheel 63 and drive a rebound 64 that rotates by handwheel 63 on transition axis 62, rebound 64 connects by a rotary handle gets involved arrangement for guiding 70.Recliner 50 is to be used to regulate the deflection angle of getting involved arrangement for guiding 70 and inserting needle direction, it is a upper and lower, left and right swing with bulb that adjusting fine-tuning nut 56,57 can make ball journal 55 respectively, and adjusting handle 63 can make intervention arrangement for guiding 70 move axially along ball journal 55.
As Fig. 8, shown in Figure 12, intervention arrangement for guiding 70 of the present invention comprises two hinged outer pin cards 71,72, and pin card 73,74 in two is set in the pin card 71,72 outside described two, wears puncture needle 75 in the pin card 73,74 in two.Wherein the outer pin card 71 of a side and interior pin card 73 are integral with fixedlying connected with rebound 64, the outer pin card 72 of opposite side can be opened by external mutually pin card 71, to put into another pin card 74 and puncture needle 75, close after the outer pin card 72, can two outer pin cards 71,72 be fixed together by a screw 76, the two fixed degree of tightness depends on puncture needle 75, and it can be slided in interior pin card 71,72 under the effect of external force.
The present invention adjusts the position revolute throughout and moving sets all adopts nonmetallic materials, for example: fairlead 15,16 adopts polytetrafluoroethylmaterial material can reduce the coefficient of friction of moving sets greatly, make full use of the characteristics of its self-lubricating, make each movable secondary activity freely, light, volume is lighter and handier.For example cover of wedge 32 adopts phenolic resin material again, can improve the coefficient of friction of revolute pair, and it is more firm that crossbeam 43 is adjusted back locking.
When the present invention uses, can promote base 11 and move any position, can arm 17 upper and lower moving will be gone up by rotary handle 24, can rotate moving beam 43 by rotary handle 39, by rotating the direction that fine-tuning nut 56,57 and handwheel 63 can be regulated puncture needle, to aim at patient's lesions position; In case complete operation, the doctor just can import predetermined lesions position with puncture needle easily exactly.