CN1970105A - Disposable safe vein retention needle - Google Patents
Disposable safe vein retention needle Download PDFInfo
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- CN1970105A CN1970105A CN 200510123755 CN200510123755A CN1970105A CN 1970105 A CN1970105 A CN 1970105A CN 200510123755 CN200510123755 CN 200510123755 CN 200510123755 A CN200510123755 A CN 200510123755A CN 1970105 A CN1970105 A CN 1970105A
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- sleeve
- needle
- over cap
- inner sleeve
- disposable safe
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Abstract
The invention discloses a one-time safe vein indwelling needle, which comprises the following parts: needle bulk, indwelling needle, protective lid and plug sleeve, wherein the injecting needle is plugged in front of needle bulk with rim projecting a slider; the plug sleeve can be set on the back of needle bulk; the protective lid is composed of inner liner, one or more middle liner and outer liner with bottom possessing back baffle part separately; the middle liner is encased on the inner liner with outer liner encasing on the middle liner; the inner liner is encased on the needle bulk; the hose of indwelling needle is encased on the front end of injecting needle rim with sleeve of indwelling needle as front end of needle bulk.
Description
Technical field
The present invention relates to a kind of disposable safe vein retention needle, be meant the disposable safe vein retention needle that a kind of medical personnel of avoiding cause danger when operating especially.
Background technology
The remaining needle structure of generally commonly using comprises a syringe needle, a remaining needle and pin lid, wherein this Injector Bushing places on the syringe needle, the pin lid then is coated on syringe needle front end and remaining needle outer rim, when this remaining needle structure of commonly using is used, earlier the pin lid is taken off, syringe needle is inserted patient's injection part with the entry needle on the syringe needle together with remaining needle, again by flexible pipe and the sleeve pipe of giving as security remaining needle, then syringe needle is extracted out, make remaining needle stay patient's injection part and separate, and then be arranged in a carrier pipe in the sleeve pipe of remaining needle and inject with syringe needle; Just, this kind remaining needle structure is when syringe needle separates with remaining needle, patient's blood can be gushed out from the remaining needle place, therefore medical personnel are when being inserted in carrier pipe the sleeve pipe of remaining needle then with the syringe needle extraction, speed is very fast, in order to avoid the outflow of patient's blood is too many, yet, also because the speed of medical personnel when substituting syringe needle and carrier pipe wants fast, therefore be easy to cause the entry needle of the syringe needle that medical personnel are drawn out of to scratch and produce danger.
Summary of the invention
The disposable safe vein retention needle that purpose of the present invention promptly is to provide a kind of medical personnel of avoiding to cause danger when operation.
A time purpose of the present invention is to provide a kind of disposable safe vein retention needle that can't secondary uses.
Another object of the present invention ties up in a kind of handled easily being provided and having the disposable safe vein retention needle of safety concurrently.
Can realize the disposable safe vein retention needle of foregoing invention purpose, include:
One needle body, this needle body front end is inserted with an entry needle, and the needle body outer rim is protruding with a slide block, and the needle body front end can be nested with for the sleeve pipe of remaining needle;
One remaining needle, this remaining needle is extended with a flexible pipe at a sleeve pipe front end, and telescopic rear end outer rim then is equipped with a blocking part;
One over cap, this over cap is made up of an inner sleeve and one or more intermediate sleeve or an outer sleeve, this inner sleeve, intermediate sleeve and outer sleeve inner edge end convex with a back stopper, and back stopper front end then is provided with a non-return block, then convexes with a front block unit in this inner sleeve and intermediate sleeve outer rim front end in addition; And
One plug sleeve, this plug sleeve can be filled in and be located at needle rear end.
Adopt above technical scheme, the plug sleeve of needle rear end can be avoided blood to pass through entry needle and flow out from needle rear end; Each non-return block then can't expose after entry needle is once used in the over cap, and reaches nonrecoverable purpose; Coat entry needle by over cap, medical personnel's hands is positioned at the needle point rear of entry needle, can avoid medical personnel to be stabbed, and therefore also can reach purpose of safety.
Description of drawings
See also the detailed description and the accompanying drawing thereof of following relevant a preferred embodiment of the present invention, can further understand technology contents of the present invention and purpose effect thereof; The accompanying drawing of relevant this embodiment is:
Fig. 1 is the stereo appearance figure of disposable safe vein retention needle of the present invention;
Fig. 2 is the part three-dimensional cutaway view of this disposable safe vein retention needle;
Fig. 3 is the three-dimensional exploded view of this disposable safe vein retention needle;
Fig. 4 is the three-dimensional exploded view of this disposable safe vein retention needle first embodiment;
Fig. 5 is the three-dimensional exploded view of this disposable safe vein retention needle second embodiment;
Fig. 6 is the three-dimensional exploded view of this disposable safe vein retention needle the 3rd embodiment;
Fig. 7 is the three-dimensional exploded view of this disposable safe vein retention needle the 4th embodiment;
Fig. 8 is the three-dimensional exploded view of this disposable safe vein retention needle the 5th embodiment;
Fig. 9 is the three-dimensional exploded view of this disposable safe vein retention needle the 6th embodiment;
Figure 10 is the over cap three-dimensional exploded view of this disposable safe vein retention needle the 7th embodiment;
Figure 11 is the three-dimensional exploded view of this disposable safe vein retention needle the 7th embodiment;
Figure 12 is the three-dimensional exploded view of this disposable safe vein retention needle the 8th embodiment;
Figure 13 is the three-dimensional exploded view of this disposable safe vein retention needle the 9th embodiment;
Figure 14 is the side sectional view of this disposable safe vein retention needle the tenth embodiment;
Figure 15 is the action sketch map of this disposable safe vein retention needle the tenth embodiment;
Figure 16 is the three-dimensional exploded view of this disposable safe vein retention needle the 11 embodiment;
Figure 17 is the three-dimensional exploded view of this disposable safe vein retention needle the 12 embodiment;
Figure 18 is the three-dimensional exploded view of this disposable safe vein retention needle the 13 embodiment;
Figure 19 is the three-dimensional exploded view of this disposable safe vein retention needle the 14 embodiment; And
Figure 20 is the over cap side sectional view of this disposable safe vein retention needle the 14 embodiment.
The specific embodiment of the present invention
See also Fig. 1,2 and Fig. 3, disposable safe vein retention needle provided by the present invention mainly includes:
One needle body 1, this needle body 1 front end is inserted with an entry needle 11, and needle body 1 outer rim is protruding with a slide block 5, and needle body 1 front end can be nested with for the sleeve pipe 21 of remaining needle 2;
One remaining needle 2, this remaining needle 2 is extended with a flexible pipe 22 at a sleeve pipe 21 front ends, and the rear end outer rim of sleeve pipe 21 then is equipped with a blocking part 23;
One over cap 3, this over cap 3 replaces institute to form by an inner sleeve 31, one or more intermediate sleeve 32 and an outer sleeve 33, this inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 inner edge ends convex with a back stopper 34, and back stopper 34 front ends then are provided with a non-return block 6, then convex with a front block unit 35 in this inner sleeve 31 and intermediate sleeve 32 outer rim front ends in addition; And
One plug sleeve 4, this plug sleeve 4 can be filled in and be located at needle body 1 rear end;
This over cap 3 is placed in outside the inner sleeve 31 with intermediate sleeve 32, and 33 of outer sleeves are placed in outside the intermediate sleeve 32, and 31 of this inner sleeves are placed in needle body 1 outer rim, and this remaining needle 2 then is placed in entry needle 11 outer rims of needle body 1 front end with flexible pipe 22.
When disposable safe vein retention needle provided by the present invention uses, in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of medical personnel with needle body 1 front end, at this moment, rely on the plug sleeve 4 of needle body 1 rear end to stop, can avoid blood to pass through entry needle 11 and flow out from needle body 1 rear end, medical personnel pin flexible pipe 22 with finger then, and needle body 1 extracted backward, make sleeve pipe 21 break away from needle body 1, cause needle body 1 to separate with remaining needle 2, and make flexible pipe 22 keep somewhere injection site in the patient together with remaining needle 2 bodies, and push the strength of flexible pipe 22 by medical personnel, and blood can't be flowed out from remaining needle 2, at this moment, medical personnel insert stilligout or syringe in the sleeve pipe 21 of remaining needle 2 again, with the action of extracting or injecting, medical personnel one hold needle body 1 then, after another holds the outer sleeve 33 of over cap 3, be pulled outwardly simultaneously, over cap 3 is coated entry needle 11 and do not expose, and this over cap 3 is by inner sleeve 31, the back stopper 34 of intermediate sleeve 32 and outer sleeve 33 is kept off slide block 5 and the inner sleeve 31 of putting needle body 1 respectively, the front block unit 35 of intermediate sleeve 32, and make inner sleeve 31, intermediate sleeve 32, outer sleeve 33 and needle body 1 can't separate, and when needle body 1 and outer sleeve 33 are pulled outwardly respectively, then the front block unit 35 of this intermediate sleeve 32 is by the non-return block 6 of outer sleeve 33, the front block unit 35 of inner sleeve 31 is by the non-return block 6 of intermediate sleeve 32,5 non-return blocks 6 of the slide block of needle body 1 by inner sleeve 31, put by the retaining of each non-return block 6 this moment, can make the inner sleeve 31 of over cap 3, intermediate sleeve 32 and outer sleeve 33 can't be stepped back again, make entry needle 11 expose, and reach nonrecoverable purpose, moreover, because when disposable safe vein retention needle provided by the present invention coats entry needle 11 in operation protection lid 3, medical personnel's hands all is positioned at the needle point rear of entry needle 11, so can avoid medical personnel to be stabbed, therefore also can reach purpose of safety; In addition, in the disposable safe vein retention needle provided by the present invention, this over cap 3 also can not established intermediate sleeve 32, and directly is made up of an outer sleeve 33 and an inner sleeve 31.
See also Fig. 4; in the disposable safe vein retention needle provided by the present invention; the inner sleeve 31 of this over cap 3; each non-return block 6 front end of intermediate sleeve 32 and outer sleeve 33 are equipped with a protuberance 36; so; before disposable safe vein retention needle provided by the present invention uses; the slide block 5 of this needle body 1 is positioned between the non-return block 6 and protuberance 36 of inner sleeve 31; the back stopper 34 of inner sleeve 31 is positioned between the non-return block 6 and protuberance 36 of intermediate sleeve 32; the back stopper 34 of intermediate sleeve 32 then is positioned between the non-return block 6 and protuberance 36 of outer sleeve 33; and when disposable safe vein retention needle desire provided by the present invention is used; medical personnel only need hold outer sleeve 33 and its direction to needle body 1 is drawn; can make the back stopper 34 of slide block 5 with the intermediate sleeve 32 and the inner sleeve 31 of needle body 1; break away from inner sleeve 31 respectively; the protuberance 36 of intermediate sleeve 32 and outer sleeve 33; make inner sleeve 31; intermediate sleeve 32 and outer sleeve 33 move back to the direction of needle body 1, and make entry needle 11 expose.
See also Fig. 5; in the disposable safe vein retention needle provided by the present invention; the inner sleeve 31 of this over cap 3; intermediate sleeve 32 and outer sleeve 33 inner edges are equipped with a protuberance 36 near the front end part; therefore when inner sleeve 31; when intermediate sleeve 32 and outer sleeve 33 move back to needle body 1 direction; can be resisted against slide block 5 rears of needle body 1 by means of the protuberance 36 of inner sleeve 31; the protuberance 36 of intermediate sleeve 32 is resisted against front block unit 35 rears of inner sleeve 31; and the protuberance 36 of outer sleeve 33 is resisted against front block unit 35 rears of intermediate sleeve 32; with the action that positions; when avoiding medical personnel to insert patient bodies in together with the flexible pipe 22 of remaining needle 2 entry needle 11 of needle body 1 front end, inner sleeve 31; the action of slippage before and after intermediate sleeve 32 and outer sleeve 33 produce.
See also Fig. 6 and Fig. 7, in the disposable safe vein retention needle provided by the present invention, can establish one or more slide rail 37 in the inner sleeve 31 of this over cap 3, intermediate sleeve 32 and the outer sleeve 33, the non-return block 6 of inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 then is arranged at slide rail 37 near terminal position; Moreover inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 can be provided with one or more protuberance 36 in non-return block 6 front ends of slide rail 37, and inner sleeve 31, intermediate sleeve 32 or outer sleeve 33 inner edges also can be provided with a protuberance 36 near the front end part.
See also Fig. 8, in the disposable safe vein retention needle provided by the present invention, the inner sleeve 31 of this over cap 3, on the slide rail 37 of intermediate sleeve 32 and outer sleeve 33, run through inner sleeve 31 for offering, the storage tank 381 of intermediate sleeve 32 and outer sleeve 33, therefore, after disposable safe vein retention needle provided by the present invention is finished using, only need over cap 3 is drawn forward, entry needle 11 can be coated in the over cap 3, and the slide block 5 of needle body 1, the front block unit 35 of inner sleeve 31 and intermediate sleeve 32, then protrude respectively and be placed in inner sleeve 31 because of the elasticity of material institute tool own, in the storage tank 381 of intermediate sleeve 32 and outer sleeve 33, and make inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 all can't be drawn back once more, to reach nonrecoverable security purpose; This storage tank 381 also can be located at the optional position of rear end in inner sleeve 31, intermediate sleeve 32 and the outer sleeve 33 in addition, and the position of storage tank 381 and quantity on the corresponding inner sleeve 31 of needle body 1 outer rim and be provided with its corresponding slide block 5, the corresponding intermediate sleeve 32 of inner sleeve 31 outer rims on the position of storage tank 381 and quantity and be provided with front block unit 35 corresponding with it, and the position of storage tank 381 and quantity and be provided with front block unit 35 corresponding on the intermediate sleeve 32 outer rims correspondence outer sleeve 33 with it.
See also Fig. 9; in the disposable safe vein retention needle provided by the present invention; the inner sleeve 31 of this over cap 3, intermediate sleeve 32 or outer sleeve 33 inner edges can be provided with a protuberance 36 near the front end place; therefore when disposable safe vein retention needle provided by the present invention uses; can pull out inner sleeve 31, intermediate sleeve 32 or outer sleeve 33 one of them; and utilize protuberance 36 to be resisted against the interior telescopic front block unit 35 that is coated of this joint sleeve or slide block 5 rears of needle body 1, control the length that entry needle 11 exposes by this.
See also Figure 10 and Figure 11; in the disposable safe vein retention needle provided by the present invention; outer sleeve 33 front ends of this over cap 3 can be convexly equipped with a needle stand 331 and plug for the sleeve pipe 21 of remaining needle 2; therefore in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of needle body 1 front end; then by the frictional force of 21 of the sleeve pipes of the needle stand 331 of outer sleeve 33 and remaining needle 2; make medical personnel pin flexible pipe 22 with finger; and when needle body 1 extracted backward; intermediate casing 21 and inner sleeve 21 are drawn out the outer rim that is coated on entry needle 11 simultaneously; and the front block unit 35 of working as middle sleeve 32 passes through the non-return block 6 of outer sleeve 33; the front block unit 35 of inner sleeve 31 is by the non-return block 6 of intermediate sleeve 32; 5 non-return blocks 6 of the slide block of needle body 1 by inner sleeve 31; when the slide block 5 that makes each telescopic front block unit 35 or needle body 1 contacts with each telescopic back stopper 34; continue again needle body 1 is pulled back; can make sleeve pipe 21 disengagings of needle stand 331 with the remaining needle 2 of outer sleeve 33; cause remaining needle 2 to keep somewhere injection part, and over cap 3 also envelope entry needle 11 simultaneously in the patient.
See also Figure 12; in the disposable safe vein retention needle provided by the present invention; outer sleeve 33 front ends of this over cap 3 are provided with some clasps of establishing on the blocking part 23 of remaining needle 2 332 that collude; therefore in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of needle body 1 front end; catch on the blocking part 23 of remaining needle 2 then by the clasp 332 of outer sleeve 33; make medical personnel pin flexible pipe 22 with finger; and when needle body 1 extracted backward; intermediate casing 21 and inner sleeve 21 are drawn out the outer rim that is coated on entry needle 11 simultaneously; and the front block unit 35 of working as middle sleeve 32 passes through the non-return block 6 of outer sleeve 33; the front block unit 35 of inner sleeve 31 is by the non-return block 6 of intermediate sleeve 32; 5 non-return blocks 6 of the slide block of needle body 1 by inner sleeve 31; when the slide block 5 that makes each telescopic front block unit 35 or needle body 1 contacts with each telescopic back stopper 34; continue again needle body 1 is pulled back; can make the clasp 332 of outer sleeve 33 break away from the blocking part 23 of remaining needle 2; cause remaining needle 2 to keep somewhere injection part, and over cap 3 also envelope entry needle 11 simultaneously in the patient.
See also Figure 13; in the disposable safe vein retention needle provided by the present invention; this over cap 3 also can convex with front block unit 35 in outer sleeve 33, intermediate sleeve 32 front end inner edges; the rear end outer rim of inner sleeve 31, intermediate sleeve 32 and the rear end inner edge of outer sleeve 33 then convex with back stopper 34; and outer sleeve 33 is sheathed on outside the needle body 1; intermediate sleeve 32 is placed in the outer sleeve 33; inner sleeve 31 is placed in the intermediate sleeve 32; and the blocking part 23 back end in contact of these inner sleeve 31 front end walls and remaining needle 2, and inner sleeve 31 outer rims then convex with Handheld Division 311.
See also Figure 14 and Figure 15, in the disposable safe vein retention needle provided by the present invention, the inboard of this inner sleeve 31 is provided with a spring 7, this spring 7 places inner sleeve 31 trailing edges with a stop hook 81 retainings, and the outer rim of this inner sleeve 31 is provided with one and puts spring 7 by press button 8 with control stop hook 81 retaining, therefore in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of needle body 1 front end, and medical personnel pull back needle body 1 together with over cap 3, after making needle body 1 and remaining needle 2 separating, medical personnel only need give as security down by press button 8, just stop hook 81 upwards can be drawn, make stop hook 81 no longer block spring 7, this moment can be by the elastic force of spring 7 with outer sleeve 33, intermediate sleeve 32 and inner sleeve 31 eject forward to coat entry needle 11; In addition, this spring 7 also can be located at the inboard of outer sleeve 33, and this spring 7 places outer sleeve 33 leading edges with a stop hook 81 retaining, and is provided with one in the outer rim of this outer sleeve 33 and puts spring 7 by press button 8 with control stop hook 81 retainings.
See also Figure 16, disposable safe vein retention needle provided by the present invention includes:
One needle body 1, this needle body 1 front end is inserted with an entry needle 11, and needle body 1 outer rim is protruding with a block 12, and these block 12 rear sides then are provided with a slide block 5, and needle body 1 front end can be nested with for the sleeve pipe 21 of remaining needle 2;
One remaining needle 2, this remaining needle 2 is extended with a flexible pipe 22 at a sleeve pipe 21 front ends, and the rear end outer rim of sleeve pipe 21 then is equipped with a blocking part 23;
One over cap 3, this over cap 3 is by an inner sleeve 31, an one or more intermediate sleeve 32 and an outer sleeve 33 are formed, this inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 inner edge ends convex with a back stopper 34, and inner sleeve 31 and intermediate sleeve 32 outer rim front ends then convex with a front block unit 35, rear side in this front block unit 35 then is provided with a slide block 5, in addition in this inner sleeve 31, the lateral margin of intermediate sleeve 32 and outer sleeve 33 offers a chute 38, and the end of each chute 38 is extended with a storage tank 381 to side, and is provided with some non-return blocks 6 in storage tank 381; And
One plug sleeve 4, this plug sleeve 4 can be filled in and be located at needle body 1 rear end;
This over cap 3 is placed in outside the inner sleeve 31 with intermediate sleeve 32; 33 of outer sleeves are placed in outside the intermediate sleeve 32; 31 of this inner sleeves are placed in needle body 1 outer rim; this remaining needle 2 then is placed in entry needle 11 outer rims of needle body 1 front end with flexible pipe 22; and the sleeve pipe 21 of this remaining needle 2 is for being placed on needle body 1 front end; in addition; the slide block 5 of this needle body 1 is arranged in the chute 38 of this inner sleeve 31; the slide block 5 of this inner sleeve 31 is arranged in the chute 38 of intermediate sleeve 32, and the slide block 5 of this intermediate sleeve 32 is arranged in the chute 38 of outer sleeve 33.
When disposable safe vein retention needle provided by the present invention uses, in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of medical personnel with needle body 1 front end, and stop by the plug sleeve 4 of needle body 1 rear end, can avoid blood to pass through entry needle 11 and flow out from needle body 1 rear end, medical personnel pin flexible pipe 22 with finger then, and needle body 1 extracted backward, and needle body 1 is separated with remaining needle 2, and make flexible pipe 22 keep somewhere injection site in the patient together with remaining needle 2 bodies, and push the strength of flexible pipe 22 by medical personnel, and blood can't be flowed out from remaining needle 2, at this moment, medical personnel insert stilligout or syringe in the sleeve pipe 21 of remaining needle 2 again, to extract or action of injection, medical personnel one hold needle body 1 then, after another holds the outer sleeve 33 of over cap 3, be pulled outwardly simultaneously, can make over cap 3 that entry needle 11 is coated and do not expose, at this moment, medical personnel only need needle body 1 and outer sleeve 33 are reversed, can make the slide block 5 of needle body 1 change the storage tank 381 of inner sleeve 31 over to, the slide block 5 of inner sleeve 31 changes the storage tank 381 of intermediate sleeve 32 over to, the slide block 5 of intermediate sleeve 32 changes the storage tank 381 of outer sleeve 33 over to, put by the retaining of non-return block 6 then, each slide block 5 can't be deviate from by storage tank 381, cause over cap 3 to pull back again and entry needle 11 is no longer exposed, to reach nonrecoverable security purpose; In addition, outer sleeve 33 front ends of this over cap 3 can be convexly equipped with a needle stand 331 and plug for the sleeve pipe 21 of remaining needle 2, or in these outer sleeve 33 front ends be provided with some collude the clasp 332 established on the blocking part 23 of remaining needle 2 (see also Figure 10,11 and Figure 12).
See also Figure 17, in the disposable safe vein retention needle provided by the present invention, this chute 38 is provided with some protuberances 36 with storage tank 381 position contacting places, before disposable safe vein retention needle therefore provided by the present invention uses, the slide block 5 of this needle body 1 places between the protuberance 36 and non-return block 6 of inner sleeve 31, the slide block 5 of inner sleeve 31 places between the protuberance 36 and non-return block 6 of intermediate sleeve 32, and the slide block 5 of intermediate sleeve 32 places between the protuberance 36 and non-return block 6 of outer sleeve 33, therefore when desire is used disposable safe vein retention needle provided by the present invention, only need hold outer sleeve 33 reverses with needle body 1, each slide block 5 is changed in the chute 38, can be with inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 pull back, and make entry needle 11 expose action to extract or to inject; In addition, see also Figure 18, in the disposable safe vein retention needle provided by the present invention, these chute 38 front ends are extended with a storage tank 381 to side, and this chute 38 is provided with some protuberances 36 with storage tank 381 position contacting places, therefore, when inner sleeve 31, when intermediate sleeve 32 and outer sleeve 33 are drawn back, can be with needle body 1, the slide block 5 of inner sleeve 31 and intermediate sleeve 32 changes inner sleeve 31 over to, in the storage tank 381 of intermediate sleeve 32 and outer sleeve 33 chutes 38 front ends, make inner sleeve 31, intermediate sleeve 32 and outer sleeve 33 can not move forward and backward, so that medical personnel are with the flexible pipe 22 insertion patient infusion portions of entry needle 11 together with remaining needle 2.
See also Figure 19, disposable safe vein retention needle provided by the present invention, drawn together:
One needle body 1, this needle body 1 front end is inserted with an entry needle 11, and needle body 1 side is outward extended with two or more block passages 13, and this block passage 13 is extended with number of plate-shaped body 132 by a collar 131 front ends, and each plates 132 extends forward and driving fit mutually;
One remaining needle 2, this remaining needle 2 is extended with a flexible pipe 22 at a sleeve pipe 21 front ends, and the rear end outer rim of sleeve pipe 21 then is equipped with a blocking part 23;
One over cap 3, these over cap 3 front ends offer a pin hole 30, and these over cap 3 rear sides are provided with some line bodies 39, are equipped with some location dome 392 on each line body 39, and the end of line body 39 is provided with a stop section 391, and the front end of stop section 391 is provided with non-return block 6; And
One plug sleeve 4, this plug sleeve 4 can be filled in and be located at needle body 1 rear end;
This over cap 3 is placed in needle body 1 front end; the pin hole 30 of 11 self-insurance protecting covers of entry needle of needle body 1 passes; and 39 of the line bodies of over cap 3 are arranged in the block passage 13 of this needle body 1; and this remaining needle 2 is placed in entry needle 11 outer rims of needle body 1 front end with flexible pipe 22, and 23 rear ends, blocking part of this remaining needle 2 then contact with over cap 3 front end walls.
When disposable safe vein retention needle provided by the present invention uses, in the flexible pipe 22 insertion patient bodies of entry needle 11 together with remaining needle 2 of medical personnel with needle body 1 front end, and stop by the plug sleeve 4 of needle body 1 rear end, can avoid blood to pass through entry needle 11 and flow out from needle body 1 rear end, medical personnel pin flexible pipe 22 with finger then, and needle body 1 extracted backward, and needle body 1 is separated with remaining needle 2, and make flexible pipe 22 keep somewhere injection site in the patient together with remaining needle 2 bodies, and push the strength of flexible pipe 22 by medical personnel, and blood can't be flowed out from remaining needle 2, at this moment, medical personnel insert stilligout or syringe in the sleeve pipe 21 of remaining needle 2 again, with the action of extracting or injecting, then, medical personnel can draw over cap 3 forward, the non-return block 6 that makes line body 39 ends is by block passage 13, make over cap 3 pull back again, and entry needle 11 can't be passed again, to reach nonrecoverable security purpose, in addition, owing on the line body 39 some location dome 392 is arranged, therefore medical personnel can adjust block passage 13 between any two location domes 392, to meet the length that its required entry needle 11 exposes; Moreover, please consult Figure 20 simultaneously, the line body 39 of these over cap 3 rear sides can be different length, and the inboard of over cap 3 is formed with a ring stopper 301 in pin hole 30 peripheries, therefore working as medical personnel draws over cap 3 forward, the stop section 391 that makes line body 39 ends is during by block passage 13, this over cap 3 is promptly because of the length difference of line body 39, cause over cap 3 to produce eccentric phenomenon, cause the ring stopper 301 of entry needle 11 by over cap 3 inboards, and when over cap 3 is pulled back once more,, and over cap 3 can't be drawn back again because of entry needle 11 is resisted against the wall of over cap 3 inboards; Again, the front end of over cap 3 can be convexly equipped with a needle stand 331 and be nested with for the sleeve pipe 21 of remaining needle 2, or in the front end of over cap 3 some clasps of establishing on the blocking part 23 of remaining needle 2 332 (as Figure 10, Figure 11 and Figure 12) that collude is set.
Above-listed detailed description is at the specifying of possible embodiments of the present invention, and this embodiment is not in order to restriction the present invention, does not allly break away from the equivalence that skill spirit of the present invention does and implements or change, all should be contained among the present invention.
Claims (24)
1. a disposable safe vein retention needle is characterized in that, comprising:
One needle body, this needle body front end is inserted with an entry needle, and the needle body outer rim is protruding with a slide block, and the needle body front end can be nested with for the sleeve pipe of remaining needle;
One remaining needle, this remaining needle is extended with a flexible pipe at a sleeve pipe front end, and telescopic rear end outer rim then is equipped with a blocking part;
One over cap, this over cap is made up of an inner sleeve and one or more intermediate sleeve or an outer sleeve, this inner sleeve, intermediate sleeve and outer sleeve inner edge end convex with a back stopper, and back stopper front end then is provided with a non-return block, then convexes with a front block unit in this inner sleeve and intermediate sleeve outer rim front end in addition; And
One plug sleeve, this plug sleeve plug is located at needle rear end;
This over cap is placed in outside the inner sleeve with intermediate sleeve, and outer sleeve then is placed in outside the intermediate sleeve, and this inner sleeve then is placed in the needle body outer rim, and this remaining needle then is placed in the entry needle outer rim of needle body front end with flexible pipe, and this remaining needle places the needle body front end with casing pipe sleeve.
2. disposable safe vein retention needle as claimed in claim 1; it is characterized in that; wherein this over cap is made up of an outer sleeve and an inner sleeve; this inner sleeve and outer sleeve inner edge end convex with a back stopper; and back stopper front end then is provided with a non-return block, convexes with a front block unit in this inner sleeve outer rim front end in addition.
3. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein each non-return block front end of the inner sleeve of this over cap, intermediate sleeve and outer sleeve is equipped with a protuberance.
4. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein the inner sleeve of this over cap, intermediate sleeve and outer sleeve inner edge locate to be equipped with a protuberance near front end.
5. disposable safe vein retention needle as claimed in claim 1; it is characterized in that; wherein establish one or more slide rail in the inner sleeve of this over cap, intermediate sleeve and the outer sleeve, and the non-return block of inner sleeve, intermediate sleeve and outer sleeve is arranged at slide rail near terminal position.
6. disposable safe vein retention needle as claimed in claim 5 is characterized in that, wherein this inner sleeve, intermediate sleeve and outer sleeve are provided with one or more protuberance at the non-return block front end of slide rail.
7. disposable safe vein retention needle as claimed in claim 5 is characterized in that, wherein this inner sleeve, intermediate sleeve and outer sleeve are provided with one or more protuberance at slide rail near the position of front end.
8. disposable safe vein retention needle as claimed in claim 5 is characterized in that, wherein on the slide rail of the inner sleeve of this over cap, intermediate sleeve and outer sleeve, offers the storage tank that runs through inner sleeve, intermediate sleeve and outer sleeve.
9. disposable safe vein retention needle as claimed in claim 8, it is characterized in that, wherein this storage tank is located at the rear end in inner sleeve, intermediate sleeve and the outer sleeve, and the position of storage tank and quantity on the corresponding inner sleeve of needle body outer rim and be provided with its corresponding slide block, the corresponding intermediate sleeve of inner sleeve outer rim on the position of storage tank and quantity and be provided with front block unit corresponding with it, and the position of storage tank and quantity and be provided with front block unit corresponding on the intermediate sleeve outer rim correspondence outer sleeve with it.
10. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein the inner sleeve of this over cap, intermediate sleeve or outer sleeve inner edge are provided with a protuberance near the front end place.
11. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein the outer sleeve front end of this over cap is convexly equipped with a needle stand and plugs for the sleeve pipe of remaining needle.
12. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein the outer sleeve front end of this over cap is provided with some clasps of establishing on the blocking part of remaining needle that collude.
13. disposable safe vein retention needle as claimed in claim 1, it is characterized in that, wherein this outer sleeve is sheathed on outside the needle body, intermediate sleeve is placed in the outer sleeve, inner sleeve is placed in the intermediate sleeve, end in contact behind the blocking part of this inner sleeve front end wall and remaining needle, and the inner sleeve outer rim then convexes with the Handheld Division, and this outer sleeve, intermediate sleeve front end inner edge convex with front block unit, and the rear end outer rim of inner sleeve, intermediate sleeve and the rear end inner edge of outer sleeve then convex with the back stopper.
14. disposable safe vein retention needle as claimed in claim 1 is characterized in that, wherein the inboard of this inner sleeve is provided with a spring, and this spring places the inner sleeve trailing edge with stop hook retaining, and should in the outer rim of cover be provided with one and put spring with control stop hook retaining by press button.
15. disposable safe vein retention needle as claimed in claim 1, it is characterized in that, wherein the inboard of this outer sleeve is provided with a spring, and this spring places the outer sleeve leading edge with stop hook retaining, and the outer rim of this outer sleeve is provided with one and puts spring by press button with control stop hook retaining.
16. a disposable safe vein retention needle is characterized in that, includes:
One needle body, this needle body front end is inserted with an entry needle, and the needle body outer rim is protruding with a slide block, and the needle body front end can be nested with for the sleeve pipe of remaining needle
One remaining needle, this remaining needle is extended with a flexible pipe at a sleeve pipe front end, and telescopic rear end outer rim then is equipped with a blocking part;
One over cap, this over cap is made up of an inner sleeve, one or more intermediate sleeve and an outer sleeve, this inner sleeve, intermediate sleeve and outer sleeve inner edge end convex with a back stopper, and inner sleeve and intermediate sleeve outer rim front end then convex with a front block unit, rear side in this front block unit then is provided with a slide block, lateral margin in this inner sleeve, intermediate sleeve and outer sleeve offers a chute in addition, and the end of each chute is extended with a storage tank to side, and is provided with some non-return blocks in storage tank; And
One plug sleeve, this plug sleeve plug is located at needle rear end;
This over cap is placed in outside the inner sleeve with intermediate sleeve; outer sleeve then is placed in outside the intermediate sleeve; this inner sleeve then is placed in the needle body outer rim; this remaining needle then is placed in the entry needle outer rim of needle body front end with flexible pipe; and the casing pipe sleeve of this remaining needle places the needle body front end, and in addition, the slide block of this needle body is arranged in the chute of this inner sleeve; the slide block of this inner sleeve is arranged in the chute of intermediate sleeve, and the slide block of this intermediate sleeve is arranged in the chute of outer sleeve.
17. disposable safe vein retention needle as claimed in claim 16 is characterized in that, wherein this chute and storage tank position contacting place are provided with some protuberances.
18. disposable safe vein retention needle as claimed in claim 16 is characterized in that, wherein this chute front end is extended with a storage tank to side, and this chute and storage tank position contacting place are provided with some protuberances.
19. disposable safe vein retention needle as claimed in claim 16 is characterized in that, wherein the outer sleeve front end of this over cap is convexly equipped with a needle stand and plugs for the sleeve pipe of remaining needle.
20. disposable safe vein retention needle as claimed in claim 16 is characterized in that, wherein the outer sleeve front end of this over cap is provided with some clasps of establishing on the blocking part of remaining needle.
21. a disposable safe vein retention needle is characterized in that, includes:
One needle body, this needle body front end is inserted with an entry needle, and the needle body side is outward extended with two or more block passages, and this block passage is extended with the number of plate-shaped body by a collar front end, and each plates extends forward and driving fit mutually;
One remaining needle, this remaining needle is extended with a flexible pipe at a sleeve pipe front end, and telescopic rear end outer rim then is equipped with a blocking part;
One over cap, this over cap front end offers a pin hole, and this over cap rear side is provided with some line bodies, is equipped with some location dome on each line body, and the end of line body is provided with a stop section, and the front end of stop section is provided with the non-return block; And
One plug sleeve, this plug sleeve plug is located at needle rear end;
This over cap is placed in the needle body front end; the pin hole that the entry needle self-insurance of needle body is overlapped this passes; and the line body of over cap is arranged in the block passage of this needle body, and this remaining needle is placed in the entry needle outer rim of needle body front end with flexible pipe, and the rear end, blocking part of this remaining needle contacts with over cap front end wall.
22. disposable safe vein retention needle as claimed in claim 21 is characterized in that, wherein the line body of this over cap rear side is a different length, and there is a ring stopper inboard of over cap at the pin hole periphery.
23. disposable safe vein retention needle as claimed in claim 21 is characterized in that, wherein the front end of this over cap is convexly equipped with a needle stand and plugs for the sleeve pipe of remaining needle.
24. disposable safe vein retention needle as claimed in claim 21 is characterized in that, wherein the front end of this over cap is provided with some clasps of establishing on the blocking part of remaining needle that collude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510123755 CN1970105A (en) | 2005-11-22 | 2005-11-22 | Disposable safe vein retention needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510123755 CN1970105A (en) | 2005-11-22 | 2005-11-22 | Disposable safe vein retention needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1970105A true CN1970105A (en) | 2007-05-30 |
Family
ID=38111246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510123755 Pending CN1970105A (en) | 2005-11-22 | 2005-11-22 | Disposable safe vein retention needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1970105A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288866A (en) * | 2014-10-24 | 2015-01-21 | 上海金塔医用器材有限公司 | Disposable anti-acupuncture venous transfusion puncture needle |
| CN104906662A (en) * | 2015-01-05 | 2015-09-16 | 名高医疗器械（昆山）有限公司 | Injector |
| EP3093034A4 (en) * | 2014-10-24 | 2017-08-30 | Gemtier Medical (Shanghai) Inc. | Disposable anti-acupuncture intravenous infusion puncture needle |
| CN107530491A (en) * | 2015-05-12 | 2018-01-02 | 福建省百仕韦医用高分子股份有限公司 | The open indwelling needle of plane-of-weakness joint type protective case |
| CN109675146A (en) * | 2019-02-28 | 2019-04-26 | 中国人民解放军陆军军医大学第一附属医院 | A kind of not damaged needle of transfusion port wing |
| CN109965946A (en) * | 2017-12-28 | 2019-07-05 | 先健科技(深圳)有限公司 | Dilated penetration device, component and medical instrument |
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2005
- 2005-11-22 CN CN 200510123755 patent/CN1970105A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288866A (en) * | 2014-10-24 | 2015-01-21 | 上海金塔医用器材有限公司 | Disposable anti-acupuncture venous transfusion puncture needle |
| CN104288866B (en) * | 2014-10-24 | 2015-07-29 | 上海金塔医用器材有限公司 | The anti-acupuncture venous transfusion puncturing needle of single use |
| EP3093034A4 (en) * | 2014-10-24 | 2017-08-30 | Gemtier Medical (Shanghai) Inc. | Disposable anti-acupuncture intravenous infusion puncture needle |
| CN104906662A (en) * | 2015-01-05 | 2015-09-16 | 名高医疗器械（昆山）有限公司 | Injector |
| EP3243541A4 (en) * | 2015-01-05 | 2018-08-22 | Minggao Meditech (Kunshan) Co., Ltd. | Syringe |
| CN108939214A (en) * | 2015-01-05 | 2018-12-07 | 名高医疗器械（昆山）有限公司 | A kind of syringe |
| CN104906662B (en) * | 2015-01-05 | 2019-03-12 | 名高医疗器械（昆山）有限公司 | A kind of syringe |
| CN107530491A (en) * | 2015-05-12 | 2018-01-02 | 福建省百仕韦医用高分子股份有限公司 | The open indwelling needle of plane-of-weakness joint type protective case |
| CN109965946A (en) * | 2017-12-28 | 2019-07-05 | 先健科技(深圳)有限公司 | Dilated penetration device, component and medical instrument |
| CN109965946B (en) * | 2017-12-28 | 2022-05-17 | 先健科技(深圳)有限公司 | Dilatation puncture device, assembly and medical instrument |
| CN109675146A (en) * | 2019-02-28 | 2019-04-26 | 中国人民解放军陆军军医大学第一附属医院 | A kind of not damaged needle of transfusion port wing |
| CN109675146B (en) * | 2019-02-28 | 2021-02-19 | 中国人民解放军陆军军医大学第一附属医院 | Butterfly wing non-damage needle for transfusion port |
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