A kind of combined type microwave ablation needle constructionTechnical field
The present invention relates to ablation needle technical field of medical equipment, particularly relate to a kind of combined type microwave melt needleStructure.
Background technology
Microwave Coagulation Therapy is under image-guided, and microwave melt needle percutaneous puncture is to tumor focus positionAfter, the microwave energy that microwave ablation therapeutic equipment is launched is sent to ablation needle through ablation line and is radiatedTumor focus tissue, microwave make the ion in tissue, polar water molecules whirling vibration, phase mutual friction andProduce fuel factor, make tumour cell inactivate, to reach oncotherapy purpose by the form of heat.
Normally, for avoiding the syringe needle of microwave melt needle bend in piercing process or disconnect, firstIt is directed to pipe puncture, then ablation needle is punctured along the direction of guide pipe.Microwave melt needleSubstantially operating process is: first pass through CT scan, plans puncture path；The path planned by realization,First it is directed to manage and blind is punctured to predetermined tumor locus, after puncture, check puncture position with CT scan againThe most correct.After confirming that the puncture position of guide pipe is correct, then cut osculum in the porch of guide pipe,Microwave melt needle is punctured into internal along guide pipe direction, then patient is sent into CT Room and check,Observe whether ablation needle tip position arrives diseased region.So the most repeatedly, until being punctured to treat swollenKnurl position.But, this puncture mode typically requires skilled practitioner and rule of thumb punctures, andNeed Needle localization repeatedly, easily cause hemorrhage, elapsed time length, easily damage periphery tissue orOrgan etc..
Summary of the invention
It is an object of the invention to propose a kind of combined type microwave ablation needle construction, by improve guide pipe andThe structure of microwave melt needle, it is possible to increase the accuracy of puncture, reduces the damage to tissue, shortensThe puncture time, reduce the risk of operation.
For reaching this purpose, the present invention by the following technical solutions:
A kind of combined type microwave ablation needle construction, including: microwave melt needle, described microwave melt needle bagInclude syringe needle, needle tubing and be arranged at the handle of end of described needle tubing；Also include guide pipe；Described microwaveAblation needle is arranged in described guide pipe, and can moving axially along described guide pipe；Described handle is evenIt is connected to for promoting described microwave melt needle along the boost motor moved axially of described guide pipe.
Wherein, described boost motor is connected to one end away from described syringe needle of described handle.
Wherein, described boost motor is connected to the sidepiece of described handle.
Wherein, removably connect between described boost motor and described handle.
Wherein, described boost motor connects the Mobile Slide that can slide along slide rail.
Wherein, described guide pipe includes stainless-steel pipe and is arranged at one end of described stainless-steel pipeFixing seat, the internal diameter of described stainless-steel pipe is slightly larger than the external diameter of described needle tubing.
Wherein, the other end of described stainless-steel pipe is provided with groove；The periphery of described stainless-steel pipeIt is provided with scale.
Wherein, the through hole being internally provided with coaxially and connecting described stainless-steel pipe of described fixing seat,Described handle is arranged in described through hole.
Wherein, the internal diameter of described through hole adapts with the appearance and size of described handle.
Wherein, it is provided with the guiding for guiding described microwave melt needle to be axially moveable in described through holeRing, the internal diameter of described guide ring adapts with the external diameter of described handle.
The invention have the benefit that compared with existing microwave melt needle puncture technique, this is combined and declinesMicrowave melt needle is arranged in guide pipe by ripple ablation needle structure, and promotes microwave melt needle by boost motorPuncture, improve the Stability and veracity of puncture, be prevented effectively from microwave melt needle at piercing processIn bend or disconnect, reduce the damage to tissue simultaneously, shorten the puncture time, reduce operationRisk.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of combined type microwave ablation needle construction that the present invention provides；
Fig. 2 is the signal of the slide construction of the boost motor of a kind of combined type microwave ablation needle construction in Fig. 1Figure.
In figure: 1-microwave melt needle；11-syringe needle；12-needle tubing；13-handle；2-guide pipe；21-is notRust steel steel pipe；22-fixes seat；221-through hole；3-boost motor；4-slide rail；5-Mobile Slide.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
As it is shown in figure 1, a kind of combined type microwave ablation needle construction, including: microwave melt needle 1, microwaveAblation needle 1 includes syringe needle 11, needle tubing 12 and is arranged at the handle 13 of end of needle tubing 12；Also includeGuide pipe 2；Microwave melt needle 1 is arranged in guide pipe 2, and can moving axially along guide pipe 2；Handle 13 connects to be had for promoting microwave melt needle 1 along the boost motor 3 moved axially of guide pipe 2.
This combined type microwave ablation needle construction, is arranged at microwave melt needle 1 in guide pipe 2, and passes throughBoost motor promotes handle 13 to drive syringe needle 11 to puncture along guide pipe 2 together with needle tubing 12, carriesThe high Stability and veracity punctured, be prevented effectively from syringe needle 11 bend in piercing process or withNeedle tubing 12 disconnects, and reduces the damage to tissue simultaneously, shortens the puncture time, reduces the wind of operationDanger.
Specifically, boost motor 3 may connect to one end away from syringe needle 11 of handle 13, with handle 13It is coaxially disposed；Be also connected to the sidepiece of handle 13, its center axis parallel with the axis of handle 13 orIt is vertically arranged；This connected mode uses and snaps connection or the mode that removably connects such as plug-in connection, knotStructure is simple, it is simple to installs and dismantles.
As in figure 2 it is shown, boost motor 3 connects Mobile Slide 5, Mobile Slide 5 can slide along slide rail 4.It addition, boost motor 3 can be provided with servo drive system, by this servo drive system, drive boost motor3 slide along slide rail 4, thus drive microwave melt needle 1 moving axially along guide pipe 2.Boost motor 3Propelling torsion is constant, and speed uniformly can be fast or slow, stable drive noiselessness, and transmission accuracy can reach0.1mm, can be precisely controlled puncture angle, it is ensured that operation safety.
In this combined type microwave ablation needle construction, guide pipe 2 includes stainless-steel pipe 21 and is arranged atThe fixing seat 22 of one end of stainless-steel pipe 21, the internal diameter of stainless-steel pipe 21 is slightly larger than needle tubing 12External diameter.The other end of stainless-steel pipe 21 is provided with groove, is provided with root face, or carries out down at grooveAngle, is beneficial to stainless steel tube steel pipe 21 and punctures, and prevents its end in piercing process from becomingShape.The periphery of stainless-steel pipe 21 is provided with scale, in order to doctor observes when puncturing.
In this combined type microwave ablation needle construction, fix being internally provided with coaxial and connecting stainless of seat 22The through hole 221 of steel steel pipe 21, handle 13 is arranged in through hole 221.An enforcement as the present inventionExample, the internal diameter of through hole 221 adapts with the appearance and size of handle 13, to guarantee microwave melt needle 1 energyEnough moving axially along guide pipe 2.As an alternative embodiment of the invention, it is provided with in through hole 221For the guide ring guiding microwave melt needle 1 to be axially moveable, outside the internal diameter of guide ring is with handle 13Footpath adapts.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explainThe principle of the present invention, and limiting the scope of the invention can not be construed to by any way.Based on thisThe explanation at place, those skilled in the art need not pay performing creative labour can associate the present invention'sOther detailed description of the invention, within these modes fall within protection scope of the present invention.