The end bushing type thyroid nodule puncture needle of cross without sectionTechnical field
The present invention relates to medical instruments field, particularly to the puncture for thyroid nodule aspiration biopsyPin.
Background technology
Thyroid nodule prevalence is higher, and it is to extract from the thyroid nodule of human body that thyroid nodule puncturesHistiocyte carries out pathology detection, to select suitable therapeutic scheme.At present, thyroid clinicallyTuberosity punctures frequently with ordinary syringe, and syringe needle front end is oblique profile, facilitates inserting needle and sampling,But longer oblique profile easily causes tissue injury, produce iatrogenic pain and the phenomenon such as hemorrhage.UseDuring ordinary syringe, depth of needle is also difficult to grasp, and syringe needle easily blocks, cause draw materials less,Be not suitable for carrying out multiple spot puncture, cause puncture failure rate higher.
Summary of the invention
It is an object of the invention to provide a kind of puncture needle, it is possible to solve in above-mentioned prior art problemOne or more.
According to an aspect of the invention, it is provided puncture without section cross end bushing type thyroid nodulePin, including nook closing member and needle body.Needle body is the hollow tubular of both ends open formula, and nook closing member is with needle body socket joint type evenConnect.Needle body front end is stretched out in nook closing member front end, and extension is provided with core point, and nook closing member can drive syringe to arriveAura position.Needle body front end is provided with recess, and recess is at least one.
The invention has the beneficial effects as follows: needle body front end is sharp keen, before reducing, oblique profile carries to patientThe pain come and bleeding；It is provided with nook closing member, after puncture needle arrives affected area, extracts nook closing member again, keep awayExempt from histiocyte blocking needle body during inserting needle, and nook closing member stretch out the part of needle body front end and is provided with core point,Make puncture needle facilitate penetration of histiocyte and arrive lesions position.The cove design of needle body front end, conveniently takesDuring material, the liquid such as the blood in needle body flows out from needle body.
In some embodiments, the recess of needle body front end is preferably four, and recess is in needle body front endOn end face symmetrical in " ten " word, notch depth is more than 0mm, and less than or equal to 1mm.Thus, while reducing patient pain, when conveniently drawing materials, blood efficiently flows out from multiple directions.Certainly,Recess quantity and position distribution are not limited to this, it is possible to for other quantity, the distribution in needle body front end is alsoCan be other patterns.
In some embodiments, needle body surface is additionally provided with scale, and scale is initiated with 0 from needle body front endCm, spacing is 0.1-1.0cm.Thus, scale is conducive to accurate assurance depth of needle.
In some embodiments, needle rear end is additionally provided with holds needle handle, holds needle handle and is set in outside needle body,Can be made up of anti-slip material.Thus, hold needle handle and limbs can be avoided directly to contact needle body cause and expand with heat and contract with cold,And smooth operation, reduce the damage to parathyroid tissue, alleviate hemorrhage of thyroid and cause hematoma, helpIn improving operation success rate.
In some embodiments, nook closing member afterbody is provided with operating side, and operating side is spherical, facilitates inserting needleAnd extract the operations such as nook closing member.Operating side also can be other Reasonable Shape herein.
In some embodiments, nook closing member afterbody is additionally provided with connector, and connector is at operating side and needle bodyBetween.Thus, before pulling out nook closing member, connect physical ability and effectively seal needle body, prevent from polluting needle body.
The puncture needle of the present invention is less to patient's damage, it is possible to reduce patient suffering, and accurate positioning,Stable operation, does not block needle body, draws materials conveniently, significantly improves thyroid nodule puncture success rate.
Accompanying drawing explanation
Fig. 1 is the end bushing type thyroid nodule puncture needle of cross without section of an embodiment of the present inventionSchematic diagram；
Fig. 2 is the end view of the needle body front end of puncture needle shown in Fig. 1.
Detailed description of the invention
The present invention is further detailed explanation below in conjunction with the accompanying drawings.
Fig. 1 and Fig. 2 show schematically show the cross without section according to one embodiment of the present inventionEnd bushing type thyroid nodule puncture needle.As it can be seen, this puncture needle includes nook closing member 1 and needle body 2.
Needle body 2 is the hollow tubular of both ends open formula.Needle body 2 front end is sharp keen, is provided with four recesses 5,And recess 5 is symmetrical in " ten " font in needle body 2 front end surface, recess 5 degree of depth is 0.5mm,When conveniently drawing materials, blood efficiently flows out from multiple directions.Needle body 2 surface is provided with scale, and scale is from needle body 2Front end is initiated with 0cm, and spacing is 1.0cm.Needle body 2 rear end is provided with holds needle handle 3, holds needle handle 3 and overlapsIt is located at outside needle body 2, is made up of anti-slip material.
Nook closing member 1 is connected with needle body 2 socket joint type, and needle body 2 front end, extension are stretched out in nook closing member 1 front endBeing provided with core point 6, during use, convenient drive syringe arrives aura position.Nook closing member 1 afterbody is provided with operating side 7,Operating side 7 is spherical, convenient operation.Nook closing member 1 afterbody is additionally provided with connector 4, and connector 4 is sphericalBetween operating side 7 and needle body 2.
The puncture needle of the present invention in use, first carries out localization by ultrasonic to thyroid nodule, re-uses thisThe puncture needle inserting needle of invention, can accurate assurance depth of needle by scale to affected area.Pull out subsequentlyNook closing member 1, utilizes needle body 2 to carry out follow-up work of drawing materials.Tissue is hindered by the puncture needle of the present invention when inserting needleEvil is little, goes out insufficiency of blood, and accuracy is high, will not block needle body 2, can effectively alleviate patient's slight illness, and raising is wornThorn efficiency.
Above-described is only one embodiment of the present invention.For those of ordinary skill in the artFor, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement,These broadly fall into protection scope of the present invention.