CN203647794U - Safe indwelling needle for blood sampling and transfusing - Google Patents
Safe indwelling needle for blood sampling and transfusing Download PDFInfo
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- CN203647794U CN203647794U CN201320874237.3U CN201320874237U CN203647794U CN 203647794 U CN203647794 U CN 203647794U CN 201320874237 U CN201320874237 U CN 201320874237U CN 203647794 U CN203647794 U CN 203647794U
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Abstract
A safe indwelling needle for blood sampling and transfusing comprises a puncture needle and a sleeve base. The puncture needle is composed of a needle core and a flexible sleeve. The sleeve base is connected with the back part of the flexible sleeve. The sleeve base is internally provided with an isolating plug. The back end of the needle core is provided with a needle handle base on which a needle handle is fixedly arranged. The front end of the needle core penetrates through the isolating plug and is inserted into the flexible sleeve. The sleeve base is provided with a bypass port which is connected with an extension tube. The extension tube is provided with a positive-pressure flow stopping clamp. The tail tube chamber of the extension tube is a straight through pipe chamber which is connected with a needleless puncture joint. The safe indwelling needle for blood sampling and transfusing provided by the utility model has a blood sampling function and a transfusing function and furthermore has advantages of: simple operation, convenient use, multiple functions in one needle, full-course closed operation, and effective protection for safety of patients and medical personnel.
Description
Technical field
This utility model belongs to field of medical article technology, relates to blood sampling instrument and transfusion instrument, specifically, is a kind of safety blood sampling transfusion indwelling needle assembly.
Background technology
Venous transfusion and venous blood collection are technical operations the most basic on hospital clinical, the most frequently used instrument of venous transfusion is to use venous detaining needle, please refer to Fig. 1, Fig. 2, venous detaining needle is made up of puncture needle and casing seat, puncture needle is made up of nook closing member 1 and soft tube 2, casing seat 3 is connected to the rear portion of soft tube 2, in casing seat 3, be provided with batching pig, the rear end of nook closing member 1 is provided with needle handle 4, the front end of nook closing member 1 runs through batching pig, insert in soft tube 2, casing seat 3 is with by-pass port 5, by-pass port 5 is connected with extension tube 6, batching pig is made up of medical grade rubber, by the sealing function of batching pig, after can guaranteeing nook closing member extraction, blood can not revealed from the endoporus of casing seat, can not block the fluid passage of by-pass port 5 simultaneously.
In extension tube 6, be provided with fluid stopping sheet 7, the structure that the afterbody tube chamber of extension tube 6 is bifurcated, namely two tube chambers, the first tube chamber 8 and calparine cap 9(or high density gum elastic cap) be connected, the second tube chamber 10 is connected with seal cover 11, after venous detaining needle puncture, can retain a couple of days, can reduce the infringement of repeated localised puncture to blood vessel and surrounding tissue, but venous detaining needle is Shortcomings also: first the nook closing member 1 of puncture needle does not have protector, in the time that nook closing member 1 is extracted out from soft tube 2 and casing seat 3, nook closing member 1 exposes completely, may scratch medical worker, increase the risk of haematogenous cross infection.Secondly venous detaining needle is not suitable for blood drawing, and reason is as follows:
The one, because venous detaining needle extension tube 6 is oversize, volume is large, in addition afterbody is two cavity configurations, the volume in every chamber is all larger, causes residual tube-sealing solution more, when blood drawing, blood and tube-sealing solution mixing portion all will discard, not only waste blood, but also easily occur haemolysis, cause quality of blood drawn to decline.
The 2nd, the fluid stopping sheet 7 in extension tube 6 is to block fluid path by fluid stopping seam, when fluid stopping seam is closed, can not produce malleation, can not automatically liquid be continued to push away forward, and backflow of blood phenomenon likely occurs, and enters in remaining needle, can make remaining needle occur stopping up after solidifying.
The 3rd, calparine cap joint 9 cannot directly be connected with existing disposable vein blood taking needle, and can only be connected with the syringe needle of syringe 12, please refer to Fig. 3, Fig. 4, the front end of syringe 12 is with syringe needle 13, after blood sampling, insert blood sampling test tube with syringe needle 13 and inject blood, belong to syringe needle and expose open-sky technique, the probability that also exist and accidentally injure operator, cross infection occurs.After under 13 groups, the syringe needle of syringe 12, after under 11 groups of the seal covers of venous indwelling Aculeata the second tube chamber 10, be directly inserted in the nipple 14 of syringe 12 on the port one 9 of the second tube chamber 10, although can draw blood, but this connected mode is not firm, easily cause blood excessive.
In order to reduce the acupuncture manipulation of infusion apparatus joint, recently there is a kind of needleless puncture joint, there are two kinds of screw socket and non-screw sockets, please refer to Fig. 5, Fig. 6, needleless puncture joint 15 front ends of screw socket are with female thread screw thread 17, rear end is with external screw thread screw thread 18, its fluid passage is sealed by separation membrane 16, screw socket needleless puncture joint 15 can substitute in calparine cap 9 or seal cover 11, but because needleless puncture joint 15 relies on the separation membrane 16 of its afterbody to connect, so, can only support the use with special screw socket infusion apparatus joint, can not be connected with vein blood taking needle.
When Hospitals at Present is drawn blood clinically, except using syringe, the most frequently used is to use vein blood taking needle 20, please refer to Fig. 7, Fig. 8, vein blood taking needle 20 is crosspointer structure, front end is puncture needle 21, rear end is thorn hatpin 22, puncture needle 21 and thorn hatpin 22 are all draw points, between puncture needle 21 and thorn hatpin 22, connect by soft extension tube 23, puncture needle 21 is taken a blood sample for puncture vessel, thorn hatpin 22 is for thrusting the rubber cap stopper 25 of negative pressure blood-taking tube 24 front ends, thorn hatpin 22 is with blood resistance unit 26, puncture needle 21 is with double-vane 27, volume is little, compared with syringe easy operating, thorn hatpin 22 is away from point of puncture, be convenient to change negative pressure blood-taking tube 24, negative pressure blood-taking tube 24 is known as again vacuum test tube, in pipe, there is certain vacuum, utilize negative pressure hemostix, can gather by one-time puncture multitube, vein blood taking needle is bidirectional needle structure, also Shortcomings part:
The one, the draw point that puncture needle is hard, stimulate larger to blood vessel and subcutaneous tissue, cannot indwelling, the 2nd, puncture needle is exposed draw point, although thorn hatpin 22 is with blood resistance unit 26, but also with sharp keen needle point, while thrusting negative pressure blood-taking tube 24, thorn hatpin 22 first punctures blood resistance unit 26, and then punctures the rubber cap stopper 25 of negative pressure blood-taking tube 24 front ends, inserting needle is all wanted significant care with removing when pin operates, and puncture needle, thorn hatpin are all likely accidentally injured operator.
Venous transfusion operation and venous blood collection operation are all the insertion type operations to blood vessel, when each puncture, puncture needle all can prick skin and blood vessel, after puncture needle is withdrawn from, the blood vessel at point of puncture position and skin all will be through healing after a while, so point of puncture is more few better, particularly for the poor patient of blood vessel wound healing ability, some patient has long-term chronic disease (hematopathy, nephropathy, connective tissue disease, diabetes etc.) history, vascular condition is poor, phlebothrombosis, blood vessel is not obvious, blood vessel injury is serious, repeatedly after puncture, may cause healing difficulty or develop complications, as there is red swelling of the skin, stasis of blood green grass or young crops, even there is phlebitis.
For medical worker, when each puncture, attention high concentration, select suitable inserting needle speed, needle angle, make every effort to accomplish hit the nail on the head, reduce patient's sensation of pricking, inserting needle operation, the operation of removing pin operation and connection negative pressure blood-taking tube, each step all must be careful, careless slightly, medical worker is likely accidentally injured by syringe needle, and haematogenous cross infection occurs.
Repeated localised puncture also can increase medical worker's work difficulty and workload, because will select best point of puncture while puncture at every turn, some patient is difficult to find multiple optimum puncturing points, as thin in vein, blood vessel does not fill infant patient or disturbance of consciousness, Mental Subnormality, mismatch, restless patient or blood vessel elasticity is poor, tight and the sclerosis obvious gerontal patient of sense or vessel position dark and the obese patient of concealment or the patient etc. that becomes thin that subcutaneous fat is few, blood vessel slides.
Known in sum, vein blood taking needle puncture once can only be taken a blood sample once, although can a multitube, can not indwelling, venous detaining needle one-time puncture just can repeatedly be infused, but can not take a blood sample, venous detaining needle and vein blood taking needle have his own strong points textural, but also there is weakness separately, owing to there is no common ground in structure, mutually can not be connected, cannot maximize favourable factors and minimize unfavourable ones, therefore suddenly wait to improve.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of safety blood sampling transfusion indwelling needle assembly, has blood drawing and infusion function, simple, achieves many things at one stroke, and omnidistance " locked in " operation, can effectively protect patient and medical worker's safety.
For achieving the above object, this utility model is by the following technical solutions:
A kind of safety blood sampling transfusion indwelling needle assembly, comprise puncture needle and casing seat, puncture needle is made up of nook closing member and soft tube, casing seat is connected to the rear portion of soft tube, in casing seat, be provided with batching pig, the rear end of nook closing member is provided with needle handle seat, on needle handle seat, be connected with needle handle, the front end of nook closing member runs through batching pig, inserts in soft tube, and casing seat is with by-pass port, by-pass port is connected with extension tube, it is characterized in that: in described extension tube, be provided with positive pressure fluid stopping clamp, the afterbody tube chamber of extension tube is straight-through tube chamber, and this tube chamber is connected with needleless puncture joint.
The outer setting of described tube chamber has external screw thread screw thread, and described needleless puncture joint is provided with female thread screw thread, and this needleless puncture joint is connected by the mode of being spirally connected with tube chamber.
This assembly also includes blood taking needle, blood taking needle by stinging hatpin, hold syringe, infusion apparatus joint forms, holding syringe is cylindrical shape, its front end is provided with centre bore seat, described thorn hatpin is arranged on the inside of holding syringe, infusion apparatus joint is arranged on the outside of holding syringe, and thorn hatpin, infusion apparatus joint is all affixed with the centre bore seat of holding syringe.
This assembly also includes recovery cylinder, the rear end of recovery cylinder is provided with plug, the outer wall of recovery cylinder is provided with guide groove, is fixed with the slide plate coordinating with guide groove on needle handle seat, and the afterbody of needle handle seat arranges pin, on pin with barb, on plug, be provided with jack, jack inwall is provided with annular stopper slot, and the rear end of described casing seat is provided with L shaped draw-in groove, the front end of recovery cylinder is provided with columniform fixture block, and this fixture block becomes clamping to coordinate with described draw-in groove.
Described surface of holding syringe is provided with fin.
The outer setting of described thorn hatpin has blood resistance unit.
Described positive pressure fluid stopping clamp forms by latch part with by buckle portion, the main body of positive pressure fluid stopping clamp is U-shaped, there are two relative sidewalls, be made up of one of them sidewall by buckle portion, latch part is made up of the bending of another sidewall upper, and the free end of latch part is provided with latch hook, latch hook is by forming towards the slope by buckle portion, the middle part of two sidewalls of main body is provided with briquetting, and briquetting is wedge shape, and the bending of main body upper end and back bending place of lower end are provided with through hole.
Innovation of the present utility model is:
Current venous detaining needle and vein blood taking needle have been done to architecture advances; respectively get the chief; maximize favourable factors and minimize unfavourable ones, make it more scientific and reasonable, and optimized configuration; mutually can be connected cooperation; increased protector simultaneously, omnidistance " locked in " operation, syringe needle does not expose; usage safety performance is good, can effectively protect patient and medical worker's safety.
Concrete improvement is as follows:
1. existing venous indwelling Aculeata tube chamber is changed into the tube chamber of single path by the double lumen structure of bifurcated, namely straight-through tube chamber has shortened extension tube simultaneously, makes the volume reducing of extension tube, straight-through tube chamber volume is also little than the tube chamber volume of bifurcated, reduce the consumption of tube-sealing solution, when blood drawing, can save blood, improve quality of blood drawn, but also can better utilize the negative pressure hemostix of negative pressure blood-taking tube, and when blood sampling, see that blood back speed is fast, be convenient to intermittent blood drawing and transfusion.
2. two is to change the fluid stopping sheet with no pressure in extension tube into positive pressure fluid stopping clamp, positive pressure fluid stopping clamp can one-handed performance, block pipeline, when the briquetting of two wedge shapes closes up, can produce normal pressure, can automatically the liquid in extension tube be continued to push away forward, the design of this uniqueness can prevent that backflow of blood from entering in remaining needle, thereby the plugging rate that remaining needle is occurred is reduced to zero.
3. set up recovery cylinder in Injector Bushing base rear end, prevent from accidentally injuring operator when nook closing member from withdrawing from, avoid causing inadvertent contamination.
4. blood taking needle being provided with held syringe, makes to sting hatpin and do not expose, and can effectively protect medical worker and patient's safety.
5. pair infusion apparatus joint has carried out meticulous selection, adopt needleless puncture joint of the prior art, while connection with blood taking needle, screw operation for spiral, thrust operation without syringe needle, reduce syringe needle and accidentally injure and cross infection odds, spiral connection also can effectively be avoided connecting and closely not occur leakage or obscission, for nursing staff's work brings convenience.
Owing to adopting technique scheme: the utlity model has following positive beneficial effect:
1. this product is suitable for needing vein detaining needle for fluids infusion to need again the patient of blood drawing to use simultaneously, safe and reliable, and omnidistance " locked in " operation can effectively be protected medical worker and patient's safety, for doctor and patient has reduced to greatest extent, the probability that infects occurs.
2. this product is suitable for special patient and uses, as vein is thin, blood vessel does not fill infant patient or disturbance of consciousness, Mental Subnormality, mismatch, restless patient or blood vessel elasticity is poor, tight and the sclerosis obvious gerontal patient of sense or vessel position dark and the obese patient of concealment or the patient etc. that becomes thin that subcutaneous fat is few, blood vessel slides.
3. this product is suitable for critical patient's use, and this product just can be realized and set up vein haemospasia passage and infusion channel simultaneously by one-time puncture, is convenient to clinical blood count, medication and rescue critical, critical patient, has striven for to greatest extent rescue time.
4. the work load that can alleviate medical worker, can also improve medical worker's work efficiency.
5. the remaining needle of this product is provided with recovery cylinder, and blood taking needle being provided with held syringe, and medical worker is played to safeguard protection effect, and while preventing from removing pin operation, syringe needle exposes and accidentally injures operator, avoids cross infection.
Brief description of the drawings
Fig. 1 is the structural representation of prior art medium-sized vein remaining needle.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the structural representation of syringe in prior art.
Fig. 4 is the structural representation that in Fig. 3, syringe is removed syringe needle.
Fig. 5 is the structural representation of needleless puncture joint in prior art.
Fig. 6 is the side view of Fig. 5.
Fig. 7 is the structural representation of prior art medium-sized vein blood taking needle.
Fig. 8 is the structural representation of negative pressure blood-taking tube in prior art.
Fig. 9 is the structural representation of this utility model one embodiment.
Figure 10 is the structural representation of removing protective cap in Fig. 9.
Figure 11 is rearview of the present utility model.
Figure 12 is the upward view of Figure 11.
Figure 13 is the contour structures schematic diagram of blood taking needle.
Figure 14 is the internal structure schematic diagram of Figure 13.
Figure 15 is the exploded view of Figure 14.
Figure 16 is the exploded view of remaining needle.
Figure 17 is the structural representation of recovery cylinder.
Figure 18 is the structural representation of flow-stopping clip.
Figure 19 is the cutaway view of recovery cylinder.
Figure 20 is the exploded view of Figure 17.
Figure 21 is the upward view of Figure 20.
Figure 22 is the syndeton schematic diagram of nook closing member, needle handle, needle handle seat.
Figure 23 is the partial sectional view of Figure 22.
Figure 24 is the upward view of Figure 23.
Figure 25 is the rearview of Figure 23.
Figure 26 is the syndeton schematic diagram of needle handle seat, plug, recovery cylinder.
Figure 27 is the upward view of Figure 26.
Figure 28 is the structural representation that remaining needle of the present utility model is connected with blood taking needle.
Figure 29 is the rearview of Figure 28.
Figure 30 is the structural representation before blood taking needle is connected with negative pressure blood-taking tube.
Figure 31 is the structural representation after blood taking needle is connected with negative pressure blood-taking tube.
Figure 32 is the rearview of Figure 30.
Figure 33 is the rearview of Figure 31.
Figure 34 is the structural representation before remaining needle is connected with transfusion device.
Figure 35 is the structural representation after remaining needle is connected with transfusion device.
Figure 36 is the packaging structure schematic diagram of remaining needle.
Figure 37 is the exploded view of Figure 36.
Figure 38 is the packaging structure schematic diagram of blood taking needle.
Figure 39 is the exploded view of Figure 38.
Detailed description of the invention
Number in the figure
1 nook closing member 2 soft tube 3 casing seats
4 needle handle 5 by-pass port 6 extension tubes
7 fluid stopping sheet 8 first tube chamber 9 calparine caps
10 second tube chamber 11 seal cover 12 syringes
13 syringe needle 14 nipple 15 needleless puncture joints
16 separation membrane 17 female thread screw thread 18 external screw thread screw threads
19 port 20 vein blood taking needle 21 puncture needles
22 thorn hatpin 23 extension tube 24 negative pressure blood-taking tubes
25 rubber cap stopper 26 blood resistance unit 27 double-vanes
28 external screw thread screw thread 29 protective cap 30 remaining needles
31 nook closing member 32 soft tube 33 casing seats
34 needle handle 35 by-pass port 36 extension tubes
37 positive pressure fluid stopping clamp 38 tube chamber 39 needle handle seats
40 blood taking needles 41 sting hatpin 42 and hold syringe
43 infusion apparatus joint 44 centre bore seat 45 fins
46 blood resistance unit 47 stopper slot 48 draw-in grooves
49 slide plate 50 recovery cylinder 51 plugs
52 guide groove 53 pin 54 pins
55 barb 56 barb 57 jacks
58 fixture block 59 transparent plastic box 60 latch part
61 by buckle portion 62 latch hook 63 briquettings
64 briquetting 65 through hole 66 through holes
67 transparent plastic box 68 diaphragm seal 69 diaphragm seals
Please refer to Fig. 9, Figure 10, Figure 11, Figure 12, this utility model is a kind of safety blood sampling transfusion indwelling needle assembly, comprise remaining needle 30, blood taking needle 40, remaining needle 30 is made up of puncture needle and casing seat, puncture needle is made up of nook closing member 31 and soft tube 32, casing seat 33 is connected to the rear portion of soft tube 32, in casing seat 33, be provided with batching pig, the rear end of nook closing member 31 is provided with needle handle seat 39, on needle handle seat 39, be connected with needle handle 34, the front end of nook closing member 31 runs through batching pig, insert in soft tube 32, the outer setting of soft tube 32 has protective cap 29, casing seat 33 is with by-pass port 35, by-pass port 35 is connected with extension tube 36, the afterbody of extension tube 36 is through type tube chamber 38, tube chamber 38 is connected with needleless puncture joint 15, tube chamber 38 can be integrally formed with the needleless joint 15 that punctures, also can split manufacture, in the present embodiment, tube chamber 38 and the 15 split manufactures of needleless puncture joint, tube chamber 38 outer setting have external screw thread screw thread 28, external screw thread screw thread 28 matches with the female thread screw thread 17 of needleless puncture joint 15, needleless puncture joint 15 is connected by the mode of screwing with tube chamber 38.
Please refer to Figure 13, Figure 14, Figure 15, blood taking needle 40 by thorn hatpin 41, hold syringe 42, infusion apparatus joint 43 forms, hold syringe 42 for cylindrical shape, its front end is provided with centre bore seat 44, thorn hatpin 41 is arranged on the inside of holding syringe 42, infusion apparatus joint 43 is arranged on the outside of holding syringe 42, thorn hatpin 41, infusion apparatus joint 43 is all affixed with the centre bore seat 44 of holding syringe 42, be communicated with by centre bore seat 44, the outer setting of thorn hatpin 41 has blood resistance unit 46, and the surface of holding syringe 42 has been provided with the fin 45 of anti-skidding effect.Infusion apparatus joint 43 adopts prior art.Infusion apparatus joint 43 can directly be connected with needleless puncture joint 15, as shown in Figure 28, Figure 29.Use is held syringe 42 and can be drawn blood easily; when operation; only negative pressure blood-taking tube 24 need be inserted and holds in syringe 42; and push away forward; as shown in Figure 30, Figure 31, Figure 32, Figure 33; at this moment; thorn hatpin 41 can first puncture blood resistance unit 46; and then puncture the rubber cap stopper 25 of negative pressure blood-taking tube 24 front ends; negative pressure blood-taking tube 24 has certain vacuum, so the blood in blood vessel can enter negative pressure blood-taking tube 24 inside automatically by extension tube 36; the effect that syringe 42 is held in setting is to make to sting hatpin 41 not expose, and can effectively protect medical worker's safety.
Please refer to Figure 16, Figure 17, Figure 19, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, Figure 26, Figure 27, remaining needle of the present utility model also includes recovery cylinder 50, the rear end of recovery cylinder 50 is provided with plug 51, plug 51 is affixed with recovery cylinder 50, the outer wall bottom of recovery cylinder 50 is provided with guide groove 52, and needle handle seat 39 is semi-cylindrical shaped, and hoop is on the outer wall of recovery cylinder 50, the bottom of needle handle seat 39 is provided with the slide plate 49 coordinating with guide groove 52, and the afterbody of needle handle seat 39 arranges two pins 53, 54, on pin 53 with barb 55, on pin 54 with barb 56, on plug 51, be provided with jack 57, jack 57 inwalls are provided with annular stopper slot 47, and safety remaining needle is after successfully puncturing, the guide effect of the slide plate 49 by needle handle seat 39, drive needle handle seat 39 to move backward, nook closing member 31 is reclaimed in recovery cylinder 50, pin 53, barb on 54 coordinates and needle handle seat 39 can be located with stopper slot 47, stops needle handle seat 39 to move forward, thereby guarantees that the needle point of nook closing member 31 does not expose, and has protected patient, medical personnel and other related personnel's safety, avoid thorn to injure cross infection.The rear end of casing seat 33 is provided with L shaped draw-in groove 48, and the front end of recovery cylinder 50 is provided with columniform fixture block 58, and 48 one-tenth clampings of this fixture block 58 and draw-in groove coordinate.In extension tube 36, be provided with positive pressure fluid stopping clamp 37, please refer to Figure 18, positive pressure fluid stopping clamp 37 forms by latch part 60 with by buckle portion 61, the main body of positive pressure fluid stopping clamp is U-shaped, there are two relative sidewalls, formed by one of them sidewall by buckle portion 61, latch part 60 is made up of the bending of another sidewall upper, the free end of latch part 60 is provided with latch hook 62, latch hook 62 is by towards forming by the slope of buckle portion 61, be respectively arranged with briquetting 63 at the middle part of two sidewalls of main body, 64, briquetting 63, 64 is wedge shape, the bending part of main body upper end is provided with through hole 65, back bending place of main body lower end is provided with through hole 66, through hole 65, 66 for placing extension tube 36.The advantage of the positive pressure fluid stopping clamp 37 of this structure is, can one-handed performance, block fluid path, briquetting 63,64 on positive pressure fluid stopping clamp 37 is wedge shape, when briquetting 63,64 closes up, can produce normal pressure, can automatically the liquid in extension tube 36 be continued to push away forward, the design of this uniqueness can prevent that backflow of blood from entering in remaining needle, thereby the plugging rate that remaining needle is occurred is reduced to zero.
The occupation mode of this product and traditional remaining needle occupation mode are basic identical, when use, soft tube 32 is thrust in blood vessel together with nook closing member 31, when after the whole intravasations of soft tube 32, withdraw out nook closing member 31, thereby only soft tube 32 is retained in blood vessel and infuses or draw blood.After retained needle puncture success; to after needle handle seat 39, move by needle handle 34; together with nook closing member 31 pumpbacks to recovery cylinder 50; pin 53 and pin 54 enter in jack 57; barb 56 on barb 55 and pin 54 on pin 53 utilizes the domatic of wedge shape to cross after stopper slot 47; be hooked in stopper slot 47; nook closing member 31 is locked; due to recovery cylinder 50 long enoughs; the needle point of nook closing member 31 can hold nook closing member 31 completely, so can not expose; thereby protection patient, medical personnel and other related personnel's safety, avoid thorn to injure cross infection.After nook closing member 31 is locked, screw recovery cylinder 50, the fixture block 58 of recovery cylinder 50 front ends is exited from the draw-in groove 48 of casing seat 33 rear ends, just recovery cylinder 50 can be separated with casing seat 33.
Utilize this product to infuse, please refer to Figure 34, Figure 35, when transfusion, only infusion apparatus joint 43 and the needleless puncture joint 15 of this product need be linked together by screw thread.
Please refer to Figure 36, Figure 37, remaining needle 30 is encapsulated in a transparent plastic box 59, and the top of transparent plastic box 59 is provided with diaphragm seal 69.Please refer to Figure 38, Figure 39, blood taking needle 40 is encapsulated in a transparent plastic box 67, and the surface of transparent plastic box 67 is provided with diaphragm seal 68.
Claims (7)
1. a safety blood sampling transfusion indwelling needle assembly, comprise puncture needle and casing seat, puncture needle is made up of nook closing member and soft tube, casing seat is connected to the rear portion of soft tube, in casing seat, be provided with batching pig, the rear end of nook closing member is provided with needle handle seat, on needle handle seat, be connected with needle handle, the front end of nook closing member runs through batching pig, inserts in soft tube, and casing seat is with by-pass port, by-pass port is connected with extension tube, it is characterized in that: in described extension tube, be provided with positive pressure fluid stopping clamp, the afterbody tube chamber of extension tube is straight-through tube chamber, and this tube chamber is connected with needleless puncture joint.
2. a kind of safety blood sampling transfusion indwelling needle assembly as claimed in claim 1, it is characterized in that: the outer setting of described tube chamber has external screw thread screw thread, described needleless puncture joint is provided with female thread screw thread, and this needleless puncture joint is connected by the mode of being spirally connected with tube chamber.
3. a kind of safety blood sampling transfusion indwelling needle assembly as claimed in claim 1, it is characterized in that: this assembly also includes blood taking needle, blood taking needle by stinging hatpin, hold syringe, infusion apparatus joint forms, holding syringe is cylindrical shape, its front end is provided with centre bore seat, described thorn hatpin is arranged on the inside of holding syringe, and infusion apparatus joint is arranged on the outside of holding syringe, and thorn hatpin, infusion apparatus joint is all affixed with the centre bore seat of holding syringe.
4. a kind of safety blood sampling transfusion indwelling needle assembly as claimed in claim 1, it is characterized in that: this assembly also includes recovery cylinder, the rear end of recovery cylinder is provided with plug, the outer wall of recovery cylinder is provided with guide groove, on needle handle seat, be fixed with the slide plate coordinating with guide groove, the afterbody of needle handle seat arranges pin, on pin with barb, on plug, be provided with jack, jack inwall is provided with annular stopper slot, the rear end of described casing seat is provided with L shaped draw-in groove, and the front end of recovery cylinder is provided with columniform fixture block, and this fixture block becomes clamping to coordinate with described draw-in groove.
5. safety as claimed in claim 3 blood sampling transfusion indwelling needle assembly, is characterized in that: described in hold syringe surface be provided with fin.
6. safety blood sampling transfusion indwelling needle assembly as claimed in claim 3, is characterized in that: the outer setting of described thorn hatpin has blood resistance unit.
7. the blood sampling of the safety as described in claim l transfusion indwelling needle assembly, it is characterized in that: described positive pressure fluid stopping clamp forms by latch part with by buckle portion, the main body of positive pressure fluid stopping clamp is U-shaped, there are two relative sidewalls, formed by one of them sidewall by buckle portion, latch part is made up of the bending of another sidewall upper, the free end of latch part is provided with latch hook, latch hook is by forming towards the slope by buckle portion, the middle part of two sidewalls of main body is provided with briquetting, briquetting is wedge shape, and the bending of main body upper end and back bending place of lower end are provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874237.3U CN203647794U (en) | 2013-12-26 | 2013-12-26 | Safe indwelling needle for blood sampling and transfusing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874237.3U CN203647794U (en) | 2013-12-26 | 2013-12-26 | Safe indwelling needle for blood sampling and transfusing |
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| CN203647794U true CN203647794U (en) | 2014-06-18 |
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| CN201320874237.3U Expired - Fee Related CN203647794U (en) | 2013-12-26 | 2013-12-26 | Safe indwelling needle for blood sampling and transfusing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922762A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle with sleeve |
| CN104922759A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle |
| CN104922758A (en) * | 2015-06-24 | 2015-09-23 | 陈伟权 | Remaining needle with elastic contact |
| CN105854122A (en) * | 2016-06-08 | 2016-08-17 | 广东龙心医疗器械有限公司 | Anti-thrombotic indwelling needle |
| CN106237440A (en) * | 2016-08-30 | 2016-12-21 | 苏州爱安奇婴儿用品有限公司 | A kind of safety indwelling needle |
| CN106994197A (en) * | 2017-03-23 | 2017-08-01 | 广东先来医疗器械有限公司 | A kind of medical needle with self-destruction Anti-stabbing function |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
| CN110448311A (en) * | 2019-06-12 | 2019-11-15 | 广州医科大学附属第一医院（广州呼吸中心） | A kind of remaining needle blood sampling connector |
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2013
- 2013-12-26 CN CN201320874237.3U patent/CN203647794U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922762A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle with sleeve |
| CN104922759A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle |
| CN104922758A (en) * | 2015-06-24 | 2015-09-23 | 陈伟权 | Remaining needle with elastic contact |
| CN104922758B (en) * | 2015-06-24 | 2018-03-16 | 陈伟权 | A kind of remaining needle of flexible contact |
| CN104922762B (en) * | 2015-06-24 | 2018-05-01 | 湛江健力源医疗用品有限公司 | One kind has sleeved remaining needle |
| CN105854122A (en) * | 2016-06-08 | 2016-08-17 | 广东龙心医疗器械有限公司 | Anti-thrombotic indwelling needle |
| CN105854122B (en) * | 2016-06-08 | 2022-04-12 | 广东龙心医疗器械有限公司 | Anti-thrombus indwelling needle |
| CN106237440A (en) * | 2016-08-30 | 2016-12-21 | 苏州爱安奇婴儿用品有限公司 | A kind of safety indwelling needle |
| CN106994197A (en) * | 2017-03-23 | 2017-08-01 | 广东先来医疗器械有限公司 | A kind of medical needle with self-destruction Anti-stabbing function |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
| CN110448311A (en) * | 2019-06-12 | 2019-11-15 | 广州医科大学附属第一医院（广州呼吸中心） | A kind of remaining needle blood sampling connector |
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