A kind of puncture awl needle assembliesTechnical field
It the utility model is related to technical field of medical instruments, and in particular to a kind of puncture awl needle assemblies.
Background technology
The more and more tissue space implantation radioactivity example implanted treatment arts that receive of current tumor patient carry out oncotherapy,Treatment method is typically to carry out tumor focus puncture under CT guiding, and radioactive particle then is put into neoplastic disease by particle pinIn stove.Particle pin is made up of syringe and nook closing member, and syringe tip is blunt type, and nook closing member tip is sharp keen, be advantageous to puncture skin andTissue.When the tissue or organ that the needs such as blood vessel or intestinal tube avoid damage on puncture path be present, doctor often suggests patientRow brachytherapy is abandoned, because serious complication can be produced after blood vessel or intestinal canal damage, or even jeopardizes patient vitals.ThisWhen, often cause tumor patient effectively to treat, cause the state of an illness to be delayed.
Utility model content
Technical problem to be solved in the utility model is in view of the shortcomings of the prior art, there is provided one kind punctures awl groupPart.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of puncture awl needle assemblies, including sleeve pipe,One puncture needle and second puncture needle, the cutting tip of the first puncture needle are globoidal structure, the cutting tip of the second puncture needleFor pointed structures；The madial wall of the lateral wall of the first puncture needle and the lateral wall of the second puncture needle with described sleeve pipeIt is adapted；
The pluggable plugged and fixed of first puncture needle in described sleeve pipe and the first puncture needle cutting tip fromOne end of described sleeve pipe is stretched out, or the pluggable plugged and fixed of the second puncture needle is in described sleeve pipe and described second puncturesThe cutting tip of pin stretches out from one end of described sleeve pipe.
The beneficial effects of the utility model are：The utility model is by setting independently be used cooperatively with sleeve pipe respectively firstPuncture needle and second puncture needle, when puncturing beginning, puncture skin etc. using second puncture needle and organize, intestines be present when puncturing frontWhen pipe or blood vessel, second puncture needle can be extracted, change first puncture needle, because the puncture section end of first puncture needle is cambered surfaceStructure, the damage to intestinal tube or blood vessel can be mitigated in puncture process.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the first puncture needle includes needle tubing, pushing ram and the first syringe needle of hollow structure, first syringe needleWith one end integrally connected of the needle tubing, the other end of the pushing ram from the needle tubing is plugged in the needle tubing, described to push awayEnter between bar and the needle tubing madial wall and form a water-injecting cavity, offer and multiple be connected with the water-injecting cavity on first syringe needleLogical water injection hole.
It is using the above-mentioned further beneficial effect of scheme：By setting needle tubing and pushing ram, can in progradation toFront is promoted to beat some water, water flows out from injection orifice, plays the role of pushing to intestinal tube or blood vessel, so that intestinal tube or blood vessel are separatedOpen, the damage to intestinal tube or blood vessel can be mitigated.
Further, first syringe needle is tapered, and the stub end of first syringe needle integrally connects with one end of the needle tubingConnect, the small head end of first syringe needle is the cutting tip of first syringe needle.
Further, the second puncture needle includes the shank and the second syringe needle of integrally connected；Second syringe needle is tapered,The stub end of second syringe needle and one end integrally connected of the shank, the small head end of second syringe needle is second pinThe cutting tip of head.
Further, the other end of described sleeve pipe is provided with Access Division, when the first puncture needle is plugged in described sleeve pipe, instituteAccess Division is stated to connect and fix with the first puncture needle；When the second puncture needle is plugged in described sleeve pipe, the Access DivisionConnected and fixed with the second puncture needle.
It is using the above-mentioned further beneficial effect of scheme：By setting Access Division, can be worn when first puncture needle or secondWhen pricker is plugged in sleeve pipe, first puncture needle and second puncture needle are connected and fixed respectively, avoid covering in puncture processPipe and puncture needle separate.
Further, the Access Division includes plastic barrel, and one end of the plastic barrel is integrally attached to the another of described sleeve pipeOn end, opened up on the madial wall of the plastic barrel fluted；Outside of the first puncture needle away from described first syringe needle one endElastic bumps are equipped with wall and on lateral wall of the second puncture needle away from described second syringe needle one end, the elasticity is convexAdaptation is played to be connected in the groove.
It is using the above-mentioned further beneficial effect of scheme：By setting elastic bumps and groove, when first puncture needle orSecond puncture needle is inserted into sleeve pipe, and elastic bumps adaptation is connected in groove, can be whole to first puncture needle and second puncture needleBody plays a part of connecting and fixing and facilitates first puncture needle or the plug of second puncture needle.
Further, the length of the length of the first puncture needle and the second puncture needle is 15cm-30cm.
Further, the lateral wall of described sleeve pipe is provided with scale.
Further, the internal diameter of described sleeve pipe is 14G-18G.
Further, the first puncture needle and second puncture needle are made of metal material.
Brief description of the drawings
Fig. 1 is the main structure diagram of the sleeve pipe of the present embodiment；
Fig. 2 is the internal structure schematic diagram of the first puncture needle of the present embodiment；
Fig. 3 is the main structure diagram of the second puncture needle of the present embodiment.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, first puncture needle；11st, needle tubing；12nd, pushing ram；13rd, the first syringe needle；14th, water injection hole；15th, water-injecting cavity；2nd, secondPuncture needle；21st, shank；22nd, the second syringe needle；3rd, sleeve pipe；4th, Access Division.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicalityIt is new, it is not intended to limit the scope of the utility model.
As shown in Figure 1-Figure 3, a kind of puncture awl needle assemblies of the present embodiment, including sleeve pipe 3, first puncture needle 1 and secondPuncture needle 2, the cutting tip of the first puncture needle 1 is globoidal structure, and the cutting tip of the second puncture needle 2 is pointed structures；The madial wall of the lateral wall of the first puncture needle 1 and the lateral wall of the second puncture needle 2 with described sleeve pipe 3 is adapted；Described sleeve pipe 3, first puncture needle 1 and second puncture needle 2 are made of metal material.The cutting tip of second puncture needle 2 thanThe cutting tip of first puncture needle 1 is sharp, and the cutting tip of first puncture needle 1 is somewhat in globoidal structure.
The 1 pluggable plugged and fixed of the first puncture needle of the present embodiment is in described sleeve pipe 3 and described first puncturesThe cutting tip of pin 1 stretches out from one end of described sleeve pipe 3, or 2 pluggable plugged and fixed of the second puncture needle is in described sleeve pipe 3The cutting tip of interior and described second puncture needle 2 stretches out from one end of described sleeve pipe 3.
The whole puncture awl needle assemblies of the present embodiment are made of hard material, it is preferred to use metal materialIt is made.The described sleeve pipe of the present embodiment is uniform columnar structured up and down.
The present embodiment works as puncture by setting the first puncture needle and second puncture needle that are independently used cooperatively with sleeve pipe respectivelyDuring beginning, puncture skin etc. using second puncture needle and organize, can be by second puncture needle when puncture front has intestinal tube or blood vesselExtract, change first puncture needle, because the puncture section end of first puncture needle is globoidal structure, intestines are can bypass in puncture processPipe or blood vessel, can mitigate the damage to intestinal tube or blood vessel.
As shown in Fig. 2 the needle tubing 11 of the first puncture needle 1 of the present embodiment including hollow structure, pushing ram 12 and theOne syringe needle 13, one end integrally connected of first syringe needle 13 and the needle tubing 11, the pushing ram 12 is from the needle tubing 11The other end is plugged in the needle tubing 11, and a water-injecting cavity 15, institute are formed between pushing ram 12 and the needle tubing 11 madial wallState and multiple water injection holes 14 being connected with the water-injecting cavity 15 are offered on the first syringe needle 13.By setting needle tubing and pushing ram,Can be in progradation to some water are beaten in front of propulsion, water flows out from injection orifice, plays the role of pushing to intestinal tube or blood vessel, so thatIntestinal tube or blood vessel are separated, and first puncture needle is bypassed intestinal tube or blood vessel, can be mitigated the damage to intestinal tube or blood vessel.
As shown in Fig. 2 first syringe needle 13 of the present embodiment is tapered, the stub end of first syringe needle 13 with it is describedOne end integrally connected of needle tubing 11, the small head end of first syringe needle 13 are the cutting tip of first syringe needle 13.
As shown in figure 3, the second puncture needle 2 of the present embodiment includes the syringe needle 22 of shank 21 and second of integrally connected；Second syringe needle 22 is tapered, one end integrally connected of the stub end of second syringe needle 22 and the shank 21, and described theThe small head end of two syringe needles 22 is the cutting tip of second syringe needle 22.The second puncture needle of the present embodiment is solid construction.
As shown in figure 1, the other end of the described sleeve pipe 3 of the present embodiment is provided with Access Division 4, the grafting of first puncture needle 1When in described sleeve pipe 3, the Access Division 4 connects and fixes with the first puncture needle 1；The second puncture needle 2 is plugged on instituteWhen stating in sleeve pipe 3, the Access Division 4 connects and fixes with the second puncture needle 2., can be when the first puncture by setting Access DivisionWhen pin or second puncture needle are plugged in sleeve pipe, first puncture needle and second puncture needle are connected and fixed respectively, avoid wearingThorn process middle sleeve and puncture needle separate.
The Access Division 4 of the present embodiment is preferably the plastics barrel structure of cube structure, and one end of the plastic barrel integrally connectsIt is connected on the other end of described sleeve pipe 3, is opened up on the madial wall of the plastic barrel fluted；The first puncture needle 1 is away from instituteState on the lateral wall of the one end of the first syringe needle 13 and lateral wall of the second puncture needle 2 away from described one end of second syringe needle 22 onElastic bumps are equipped with, the elastic bumps adaptation is connected in the groove.The structure of the elastic bumps can be speciallyThe projection of globoidal structure is connected on the lateral wall of first puncture needle 1 or on the lateral wall of second puncture needle 2 by spring.ThisThe Access Division 4 of embodiment and first puncture needle 1 or the cooperation pen body of similar pen of second puncture needle 2 and the clamping engagement of the cap for brushStructure, convenient plug.
The length of the first puncture needle 1 of the present embodiment and the length of the second puncture needle 2 are 15cm-30cm.The lateral wall of described sleeve pipe 3 is provided with scale.The internal diameter of described sleeve pipe 3 is 14G-18G, preferably 16G or 18G.
The use process of the puncture awl needle assemblies of the present embodiment is that second puncture needle first can be provided with into Access Division from sleeve pipeOne end is inserted into sleeve, the cutting tip of second puncture needle is stretched out from the one end of sleeve pipe away from Access Division, is made second puncture needleIt is connected in the Access Division away from one end of the cutting tip, is then punctured, when observes that there are intestinal tube or blood vessel in frontWhen, second puncture needle is extracted out of sleeve, then first puncture needle is inserted into sleeve pipe in the same manner and continues to puncture, byIt is globoidal structure in the cutting tip of first puncture needle, is not very sharp, when by intestinal tube or blood vessel, intestinal tube can be bypassedOr blood vessel, damage that can be to intestinal tube or blood vessel are light., can be by first puncture needle from sleeve pipe after sleeve bypasses intestinal tube or blood vesselInterior extraction, second puncture needle is reinserted into sleeve pipe and continues puncture.In addition, it can also use first puncture needleAnother embodiment, i.e., first extracted before puncture in the water-injecting cavity between the needle tubing and pushing ram of first puncture needle a certain amount ofWater, then first puncture needle is plugged in sleeve pipe, then punctured.When puncture front has intestinal tube or blood vessel, can promotePropeller is by the portion into the human body of the water injection in water-injecting cavity, so that the intestinal tube or blood vessel in front are separated to can proceed with and wornThorn.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility modelWithin new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included inWithin the scope of shield.