Summary of the invention
It to solve the above-mentioned problems, can the main purpose of the present invention is to provide a kind of puncture locator of changing needleNeedle exchange head can be replaced individually after use, and handle group may be reused, and whole use cost is low but does not influence or dropsIt is low to use function.
For foregoing invention purpose, the present invention provides a kind of puncture locators of changing needle, comprising:
One exchangeable needle, include a needle tubing, a needle core being arranged in needle tubing and one be connected to the needle tubing needle cap；
Leader's group, be could be detachably connected to one end of the exchangeable needle, and include a shell, one be arranged in shellThe pushing and pressing mechanism of the adapter of body front end and a setting inside housings, the exchangeable needle are connected to the adapter with the needle cap,The pushing and pressing mechanism can automatically reset and correspond to push against the exchangeable needle needle core make it in needle in-pipe.
Preferably, the puncture locator of the changing needle, wherein the pushing and pressing mechanism includes a push rod, one is connected toThe thimble of push rod front end and one reset spring on the push rod is set, which convexedly stretches in the outside of the shell, this is pushed awayTo mechanism by pushing the push rod to drive the thimble.
Preferably, the puncture locator of the changing needle, wherein the pushing and pressing mechanism is further provided with a push button and linkageElement, the push button are slidably disposed on shell, which is connected to the push rod and the push button, push away the push buttonWhen dynamic, the push rod actuation can be driven by the linkage element.
Preferably, the puncture locator of the changing needle, wherein the pushing and pressing mechanism further comprises a protective switch,The protective switch is arranged in the push rod of the pushing and pressing mechanism and stretches out the shell.
Preferably, the puncture locator of the changing needle, wherein the handle group further shell and pushing and pressing mechanism itBetween be equipped with a correcting part, which is equipped with a tailstock barrel and the needle tubing and is formed coaxially to just.
Preferably, the puncture locator of the changing needle, wherein be arranged between the needle core and needle cap of the exchangeable needleThere is a lantern ring.
Preferably, the puncture locator of the changing needle, wherein form circle in one end periphery of the exchangeable needle needle capPlate-like.
Preferably, the puncture locator of the changing needle, wherein the switching of the needle cap of the exchangeable needle and the handle groupHead is to be screwed together.
Preferably, the puncture locator of the changing needle, wherein the outer peripheral surface of the needle cap forms the spiral shell above togetherLine, the adapter offer a mounting hole, which is screw hole and corresponding with the screw thread of the needle cap, and the needle cap is made to correspond to spiral shellConjunction is connected to the mounting hole.
Preferably, the puncture locator of the changing needle, wherein the adapter of the needle cap of exchangeable needle and the handle groupIt is to be connected together.
Preferably, the puncture locator of the changing needle, wherein the handle group further comprises having a setting transferringThe spring between adapter and claw is arranged in claw and one on head, and the adapter of the handle group is mobilizable to be set in thisOn shell, which is fastened in claw with needle cap correspondence, and by driving adapter realization to tighten or loosen claw.
Preferably, the puncture locator of the changing needle, wherein the handle group further comprises having a setting transferringThe spring between adapter and button parts is arranged in button parts and one on head, and the button mechanism of the handle group is movableDevice on the housing, the exchangeable needle with the needle cap correspondence be entrenched in adapter, and by button mechanism realize engagingOr loosen needle cap.
A kind of puncture outfit the present invention provides changing needle includes exchangeable needle and handle group, and exchangeable needle is disposableIt uses, and handle is to may be reused, exchangeable needle connect cooperation with the joint portion of handle group by adapter, is usingWhen, after marker is first put into exchangeable needle, the lesions position of patient is penetrated with exchangeable needle, with the button or push rod of handle groupMarker in exchangeable needle is released, realizes with the patient lesion at label one, when another lesion of the patient need to be marked, onlyUsed syringe needle need to be taken out and be lost, after the syringe needle and marker that more renew, repeat above-mentioned movement；The present invention passes through canThe concept of the handle group collocation exchangeable needle of reuse, can require configuration to correspond to the dosage of pilot pin according in different operationsThe exchangeable needle of quantity, without after use abandoning whole branch puncture outfit, relatively traditional puncture needle has price advantage again, alsoIt can reduce the financial burden of patient.
Specific embodiment
In order to understand technical characteristic and practical effect of the invention in detail, and can come according to the content of specification realIt applies, further with preferred embodiment as shown in drawings, detailed description is as follows, as shown in Figure 1, it is excellent for of the invention firstEmbodiment is selected, the first preferred embodiment of the present invention provides a kind of puncture locator of changing needle, includes an exchangeable needle10 and one for the exchangeable needle 10 installation handle group 20.
Referring to figs. 1 to 4, which includes a needle tubing 11, a needle cap 12, a needle core 13, a lantern ring 14 and oneMarker 15, the needle tubing 11 be hollow elongate tube body and in one end formed angular cutouts, with sharp puncture movement, the needle body 11 it is anotherOne end connects the needle cap 12, which be set on the needle body 11, formed in one end periphery of the needle cap 12 it is discoid, withFacilitate the rotation needle cap 12 to be dismantled or installed, and forms the single thread or double spiral shells more than together in the outer peripheral surface of the needle cap 12Line, the thread type include but is not limited to triangle thread, rectangular thread, trapezoidal thread or saw-tooth thread, the needle core13 are movably disposed in inside the needle tubing 11, which is arranged in the position between the needle core 13 and needle cap 12, preferably, which is medical grade rubber or plastic material, is mainly used for body fluid suck-back problem in the art for preventing from being likely to occur, avoidsIn the art being likely to occur in humoral pollution to the handle group 20, which is placed on demand in the needle tubing 11, andImplantation to lesion can be pushed to generate label by the needle core 13.
As shown in Figures 4 and 5, which includes a shell 21, an adapter 22, a correcting part 23, one pushing and pressingMechanism 24, a lid 25, a protective switch 26, the shell 21 are the elongated tubular for changing with radian and being suitble to hold, the shell21 it is forward and backward be respectively provided with a connecting pin 211 and a through-hole 212, and inside the shell 21 formed one be connected to the connecting pin 211 andThe inner cavity 213 of the through-hole 212 offers one adjacent to the position of connecting pin 211 in 21 periphery of shell and is connected to the inner cavity 213Fluting 214.
As shown in figure 5, the adapter 22 is connected to the connecting pin 211 of the shell 21, it is preferable that the switching of the present embodimentFirst 22 are coniform lantern ring and are screwed together in the connecting pin 211 that the adapter 22 offers an installation along its shaft core positionHole 221, the mounting hole 221 are screw hole and corresponding with the screw thread of the needle cap 12, enable the needle cap 12 correspond to be screwed together inIn the mounting hole 221, the adapter 22 with the connection type of the needle cap 12 include but is not limited to screw togather, engage, fastening, it is chimeric orOther equivalent connection types, or the form that can be exchanged each other for outer, internal screw thread, the connecting hole 211 is with the shell 21 in coaxialSetting.
As shown in figure 5, the shell 21 is arranged in adjacent to the inner circumferential position of connecting pin 211 in the correcting part 23, and correspond to this turnThe mounting hole 221 of connector 22 is formed with that a docking groove 231, one is opened in the centre hole 232 in the center of docking groove 231 and setting is being pushed upTailstock barrel 233 in pin hole 232, the docking groove 231 are aligned with the position of the mounting hole 221, and the needle with the exchangeable needle 10Pipe 11 is arranged coaxially, when the needle cap 12 is connected to the adapter 22, the axle center of the needle tubing 11 can by the needle cap 12 withThe docking groove 231 against being formed coaxially with the centre hole 232, tailstock barrel 233 to just, to ensure thimble glide direction notIt can be eccentric.
As shown in figure 5, the pushing and pressing mechanism 24 is to be movably disposed in shell 21, it and include a push rod 241, a thimble242, a reset spring 243, a linkage element 244 and a push button 245；The push rod 241 is to be movably disposed in the shell 21Inner cavity 213, and stretch out with one end the through-hole 212 of the shell 21, in the spaced multiple flanges in the periphery of the push rod 241,It is mainly used for the connection and linkage of the push rod 241 Yu other elements, which is connected to front end and the correspondence of the push rod 241It penetrates in the tailstock barrel 233 of the correcting part 23, which can be by the drive of the push rod 241, and movably stretching to this canIn needle exchange head 10.
As shown in figure 5, the reset spring 243 is sheathed on 241 periphery of push rod and is resisted against correcting part 23 and push rod 241Between flange, when the force of push rod 241 is pushed forward, which will be compressed, and after the push rod 241 stops force, this is multipleThe push rod 241 will be pushed back to original position by position spring 243.
As shown in figure 5, the linkage element 244 is in a tubular form and to be set on rear side of the flange of the push rod 241 and the resetThe fluting 214 in the outside of spring 243, the linkage element 244 towards the shell 21 forms a connecting hole.
As shown in figure 5, the push button 245 is slidably disposed in the fluting 214 of the shell 21, and this is connected to one endThe connecting hole of linkage element 244 can drive the linkage element 244 to push against the push rod 241, and then make by pushing the push button 245The thimble 242 is pushed.
As shown in figures 2 and 5, which corresponds to the rear end for being covered on the shell 21 and has one to be connected to the through-hole 212Opening 251, the opening 251 for the push rod 241 rear end stretch out, with the push action of sharp rear end, at the same also have limitation shouldThe effect that push rod 241 is deviate from, the periphery of the lid 25 offers a sliding groove 252.
As shown in figures 2 and 5, which is connected on the push rod 241 of pushing and pressing mechanism 24, and stretches out lid 25Sliding groove 252, the actuator state which can slide in the sliding groove 252 to change the push rod 241；As the guarantorThe rotation of switch 26 is protected to opening state, push rod 241, the push button 245 pushed against in mechanism 24 just can be movable in shell 21；As the guarantorThe rotation of switch 26 is protected to closed state, push rod 241, push button 245 in the pushing and pressing mechanism 24 are cannot the activity in shell 21, therefore, which mainly prevents from wearing in use accidentally touching pushing and pressing mechanism 24, leads to marker bullet in advanceOut.
Usage mode of the invention explanation specific as follows:
1, first exchangeable needle 10 is fitted a handle on and organizes 20, and ensure that protective switch 26 is in off state, under image positioning,Needle tubing 11 is pierced into the lesion of patient；
2, protective switch 26 is opened, the pushing and pressing mechanism 24 in handle group 20 is pushed, may be selected to push push button 245 or push rod241, it after so that thimble 242 is passed through correcting part 23 and adapter 22, protrudes into the needle tubing 11 of exchangeable needle 10, and then push needle core13, make needle core 13 that marker 15 is embedded in lesions position；
3, the push button 245 or push rod 241 for unclamping pushing and pressing mechanism 24, make reset spring 243 that push rod 241 is pushed back original positionAfterwards, thimble 242 is detached from the exchangeable needle 10.
4, used exchangeable needle 10 is taken off and loses；
5,1~4 step is repeated, until label is completed；
6, subsequent procedures are carried out, under the video visual field, marker is high-visible, and lesions position can be accurately positioned, make handArt is gone on smoothly, by lesion precise ablation.
Second preferred embodiment of the invention is roughly the same with first embodiment, and difference is exchangeable needle 10A and is somebody's turn to doThe connection type of handle group 20A is different, and exchangeable needle 10A is to connect in a snap-fit manner with handle group 20A, please refer to Fig. 6 andShown in Fig. 7, the periphery needle cap 12A of exchangeable needle 10A forms the circumferential surface of smooth cone cell, and handle group 20A further comprises having oneClaw 26 and one spring 27 between adapter 22A and claw 26 is set, the adapter 22A of handle group 20A is movableThe connecting pin 211A for being set in shell 21A, and in the front end adapter 22A offer for the claw 26 be arranged mounting hole221A, the claw 26 are the clamp structure of more claw-likes, and the present embodiment, which is four paws structure, in 26 center of clawPosition is fixed for the needle cap 12A of exchangeable needle 10A.
The usage mode of second preferred embodiment of the invention is as described below, when exchangeable needle 10A is after useWhen being intended to be replaced, adapter 22A is pulled back, compresses the spring 27, the claw 26 is not by the installation at this timeHole 221A's restrains and slightly opens, such that after exchangeable needle 10A is detached from by handle group 20A, replace one group it is newExchangeable needle 10A, when adapter 22A is loosened, which will send original position back to adapter 22A, make the switchingHead 22A restrains in the outside of the claw 26, and then achievees the effect that fix exchangeable needle 10A, and Ke Kuaisugenghuan useThe exchangeable needle 10A crossed.
Third preferred embodiment of the invention is roughly the same with the first and second embodiment, difference be exchangeable needle 10B withThe connection type of handle group 20B is different, and exchangeable needle 10B is that the separable chimeric mode of one kind connects with handle group 20B,It please refers to shown in Fig. 8 and Fig. 9, the periphery needle cap 12B of exchangeable needle 10B forms the circumferential surface of smooth cone cell, and the handle group 20B is into oneStep includes button mechanism 28 and one is arranged in spring 29 between adapter 22A and button mechanism 28, and handle group 20B's turnsThe button mechanism 28 installed on connector 22B be it is mobilizable, the front end adapter 22B be equipped with for interchangeable needle cap 10B be inserted into hole 221B,The present embodiment, needle cap 10B is provided with groove structure, and convexes to form chimeric locking on button mechanism 28.
The usage mode of third preferred embodiment of the invention is as described below, when exchangeable needle 10B is after useWhen being intended to be replaced, which is pressed, compresses the spring 29, button mechanism is formed with adapter 22B at this timeChannel, such that one group of new exchangeable needle 10B is replaced after exchangeable needle 10B is detached from by handle group 20B, when handle is pressedWhen button mechanism 28 loosens, which will send original position back to button mechanism 28, make on the button mechanism 28 protrusion with canGroove on needle exchange head 10B is chimeric, and then achievees the effect that fix exchangeable needle 10B, and can be changed quickly usedExchangeable needle 10B.
The present invention can be arranged in pairs or groups the concept of exchangeable needle by reusable handle group, can according in different operations to fixedThe dosage of position needle requires the exchangeable needle of configuration corresponding number, relatively traditional without after use abandoning whole branch puncture outfitPuncture needle has price advantage again, also can reduce the financial burden of patient, and indication of the invention includes tumor of breast, oxter leachingBar tumour, but it is not limited to both the above illness.
In addition, handle group and the connection type of exchangeable needle can be four paws hair style, ball type, click on fashion includes but notIt is limited to both the above mode, a variety of materials in exchangeable needle can be any of medical stainless steel, titanium alloy, cochromeKind；Material used in handle group can be any of the medical plastics such as PVC, PE, ABS or stainless steel, and material includesBut it is not limited to material described above, the various components of the puncture locator of the changing needle can be die sinking batch production, it is also possible to 3D printing customized production, also not limits herein.
The above is only the preferred embodiment of the present invention, not does limitation in any form to the present invention, thoughSo the present invention is disclosed above with preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this professionMember, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repairAdorn the equivalent embodiment for equivalent variations, but anything that does not depart from the technical scheme of the invention content, the skill according to this practical inventionArt any simple modification, equivalent change and modification substantially to the above embodiments, still fall within technical solution of the present inventionIn range.