CN102188253A

CN102188253A - Disposable safe blood collector

Info

Publication number: CN102188253A
Application number: CN2011100603397A
Authority: CN
Inventors: 张亚根; 王冬梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2011-09-21

Abstract

The invention discloses a disposable safe blood collector, consisting of a rubber sleeve, a needle seat, a puncture needle, a spring and an outer sleeve, wherein the needle seat is bonded in the middle of the puncture needle; the rubber sleeve is arranged on the needle seat and covers one end of the puncture needle; the spring is sheathed on the spring outer sleeve at one side of the puncture needle; the rubber sleeve, the needle seat, the puncture needle and the spring are all arranged in the outer sleeve. When the disposable safe blood collector is in use, a handle on the needle seat is pushed by a hand so that the puncture needle extends forwards out of the outer sleeve and the extension position is maintained, at this moment, the spring is compressed, blood collection work can be started, when the blood collection is finished and the puncture needle is pulled out of a patient body, the handle on the needle seat is triggered by a hand to unlock a latch between the handle and the outer sleeve; and then, under the action of the restoring force of the spring, the rubber sleeve, the needle seat and a puncture needle combined body move backwards and return into the inner cavity of the outer sleeve completely.

Description

Disposable hemostix safe in utilization

Technical field

The present invention relates to a kind of medical hemostix, is a kind of hemostix disposable safe in utilization with blood collection function.

Technical background

Disposable hemostix safe in utilization of the present invention mainly is to be used for medical purpose, by puncture technique, the patients'blood sample collection in specific container, is being chemically examined and treated in the process of disease, bringing into play enormous function, is indispensable diagnosis and treatment utensil.But, along with the variation of nature advancing of disease with virus, antibacterial, cross infection and the pathophoresis that takes place with blood or body fluid contact is on the rise, and (as: drug addict is to the common or repeated use of instrument used for injection, cause the bamboo telegraph of disease, be exactly in addition in daily medical act, entry needle is also very serious to the nosocomial infection of medical personnel's pricking wound initiation, even causes transmissions of disease such as AIDS, hepatitis B, hepatitis C).The disposable requirement of medical appliance (syringe, hemostix etc.) with puncture function has been risen to the laws and regulations requirement of various countries.And The World Health Organization (WHO) has also strictly regulated safety injection (puncture) three elements: 1, harmless to user; 2, harmless to receiver (patient); 3, environmental sound; At present, mostly the hemostix of clinical use is plain edition hemostix (not having security feature substantially), after finishing the purpose of gathering patient blood, can not realize the safeguard protection to puncture needle on the hemostix, has the risk of stabbing medical personnel or waste disposal personnel.For making hemostix can satisfy the requirement of safe handling; the scientific worker has carried out number of research projects; a large amount of technical schemes is disclosed; relate in the patent of blood sampling as surplus the Patent Office of the People's Republic of China disclosed 1000 part; that have typical meaning is ZL:200610117439.8; ZL:200910304650.4 and ZL:00811508.7; these several schemes all are to utilize the blood taking needle after spring will use to be recovered in the blood sampling overcoat; though the deficiency of the common now hemostix of solution in safeguard protection that can both be in various degree; but; because the technical thought difference of each scheme; structure is different, all exists following deficiency:

1, hemostix directly is made of one with blood taking tube, like improving, in fact can not adapts to the operational requirements of once gathering the multitube blood preparation outwardly.

2, all need to adopt a special-purpose member (interior overcoat or fixedly back-up ring) to realize startup to puncture needle protection action, so, complex structure.

3, all need untapped puncture needle is protected again, promptly increase the constituent components of apparatus, increase the operation link that medical personnel remove the puncture needle protective cap again.

So at present domestic also do not have the technical scheme that a kind of structure is simple more, manufacturing is more prone to and operate disposable more easily use hemostix to be disclosed.

Summary of the invention

The technical scheme of the disposable hemostix safe in utilization of the present invention is made up of gum cover, needle stand, puncture needle, spring and overcoat.Wherein, needle stand is bonded in the middle part of puncture needle, and gum cover is contained on the needle stand and with an end shield of puncture needle, and spring housing is on the spring overcoat of puncture needle one side, and needle stand, gum cover, spring and puncture needle are placed in the overcoat together.During use, with the handle on the hand propelled needle stand, make puncture needle stretch out back and maintenance forward from overcoat, this moment, spring was compressed, and blood collection work can begin, after blood sampling finishes and puncture needle is extracted in the patient body, pull handle on the needle stand with hands, the snap close between handle and the overcoat is opened, at this moment, needle stand, gum cover and puncture needle assembly to swivel motion, and get back in the inner chamber of overcoat needle stand, gum cover and puncture needle assembly under the effect of spring restoring force fully.

The disposable hemostix safe in utilization of the present invention reaches before use and uses the back puncture needle all is to be under the protection of overcoat; simultaneously; because the scheme that has adopted overcoat that puncture needle is protected repeatedly; with use in the reality and the disclosed hemostix of patented technology compare; realized simplification textural; so the present invention has also simplified the assembly and the structure of hemostix when realizing the safety puncture.

In the present invention program; owing to adopted the structural design of expanding the overcoat function; make the present invention break the consistent design philosophy in traditional hemostix field; when making full use of original indispensable member; just realized the safeguard protection of hemostix and satisfied the requirement of rule of operation that by the design of different structure its advantage applies exists:

● expanded the function of use of original overcoat.

● simplified the labyrinth form of traditional hemostix.

● realized the security function of apparatus.

● simplified the operation sequence of apparatus.

Though technical scheme of the present invention is textural simple,, its technical characterictic has but been broken through the technical scheme of existing all hemostixes, has tangible novelty.Use product of the present invention, its ratio of performance to price is outstanding, and in use safe and effective, simple operation meets clinical use working specification.

Owing to adopt technical solution of the present invention, the manufacturing cost of treatment expection institute use apparatus is reduced greatly, also increase security function simultaneously and simplified operating process.Not only increased competitiveness of product and value, also provide safe and reliable product for the clinical medical and nursing worker.

Description of drawings

Fig. 1 is that combinative structure of the present invention launches sketch map.

Fig. 2 is the present invention's structural representation before use.

Fig. 3 is the present invention's structural representation in use.

The specific embodiment

Technical scheme for a better understanding of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

Fig. 1 is that combinative structure of the present invention launches sketch map, and by this figure as can be known: the present invention is made up of gum cover 1, needle stand 2, puncture needle 3, spring 4 and overcoat 5.It is characterized by: pass the puncture needle base 2A of puncture needle 3 from needle stand 2, make needle stand 2 be bonded in the middle part of puncture needle 3, gum cover 1 is contained in the hypomere of the puncture needle base 2A on the needle stand 2, and the end shields that puncture needle 3 is downward are lived, spring 4 is enclosed within on the spring overcoat 2B on the needle stand 2, and gum cover 1, needle stand 2, puncture needle 3 and spring 4 are placed in the inner chamber of overcoat 5 together;

Needle stand 2 is the assembly that is provided with puncture needle base 2A and spring overcoat 2B on the pedestal successively and is provided with handle 2C in its outside, wherein: puncture needle base 2A passes pedestal formation respectively one section outstanding pipe up and down, spring overcoat 2B then only has one section upwards outstanding pipe, its endoporus passes pedestal and is penetrating, it is narrow near puncture needle base 2A place that base plane is, near the wide fusiformis in spring overcoat 2B outside, there is thickness to be slightly larger than the connector 2E of overcoat 5 wall thickness between pedestal and the handle 2C, the width of connector 2E is greater than the width at the narrow place of fusiformis pedestal, width less than the wide place of fusiformis pedestal, the height of connector 2E is consistent with the height of pedestal, pedestal the widest part be provided with pedestal with the wide baffle plate 2D that stretches out respectively up and down, form the slit that connector 2E thickness is only arranged between baffle plate 2D and the handle 2C, handle 2C is provided with groove 2C1 towards baffle plate 2D one side, the height of handle 2C is consistent with the height of baffle plate 2D and both bottom surface is concordant, the button 2C2 of the upper end of handle 2C for outwards protruding upward again earlier, the width of handle 2C is greater than the width of connector 2E and suitable with the outstanding width of the strip on the overcoat 5, puncture needle base 2A center is slightly less than the distance of overcoat 5 centers to slotted eye 5B inboard to the distance of connector 2E, and puncture needle base 2A center is slightly larger than the distance of overcoat 5 centers to the slotted eye 5B outside to the distance of handle 2C;

Overcoat 5 is a tubular thin-wall construction that has outside strip to give prominence to; The inboard width that strip is given prominence to is greater than the Breadth Maximum of the pedestal on the needle stand 2; Have one to give prominence to corresponding with strip at its end face; Thin-walled; What one side was scalene cone projects upwards body 5A; Be provided with downward slotted eye 5B in that the strip of overcoat 5 is outstanding; The width of slotted eye 5B is slightly larger than the width of the connector 2E on the needle stand 2 and less than the width at the wide place of fusiformis pedestal; Be respectively equipped with button platform 5C in the both sides, upper end of slotted eye 5B; The size and shape of button platform 5C is suitable with the size and shape of the groove 2C1 on the needle stand 2; Pipe 5A1 and guide rod 5D (referring to Fig. 2) that the chamber is arranged downwards and insert into the inner at the end face of excrescence 5A; The internal orifice dimension of pipe 5A1 is slightly larger than the diameter of puncture needle 3; Concentric and its endoporus of pipe 5A1 and overcoat 5 is lower big little taper (also can be circle unanimous between the higher and lower levels); Guide rod 5D is positioned in the middle of the line at pipe 5A1 and slotted eye 5B center; Pipe 5A1 center equals to the distance at guide rod 5D center that puncture needle base 2A center is to the distance at spring overcoat 2B center on the needle stand 2, and the external diameter of guide rod 5D is less than the internal orifice dimension of the spring overcoat 2B on the needle stand 2.

Fig. 2 is the present invention's structural representation before use, by this figure as can be known: gum cover 1 is contained in the hypomere of the puncture needle base 2A on the needle stand 2, puncture needle 3 pass puncture needle base 2A and make the stage casing of puncture needle 3 and needle stand 2 bonding, spring 4 is enclosed within on the spring overcoat 2B on the needle stand 2, gum cover 1, needle stand 2, puncture needle 3 and spring 4 are placed in the inner chamber of overcoat 5 together, wherein, connector 2E on the needle stand 2 is among the slotted eye 5B on the overcoat 5, handle 2C realizes tube wall clamping to slotted eye 5B both sides with baffle plate 2D, the center of pipe 5A1 on the center that makes puncture needle 3 and the overcoat 5 overlaps, the center of guide rod 5D on the center that makes the spring overcoat 2B on the needle stand 2 and the overcoat 5 overlaps, spring 4 epimeres are enclosed within on the guide rod 5D, hypomere is enclosed within on the spring overcoat 2B, gum cover 1, the assembly of needle stand 2 and puncture needle 3 is in the inner chamber of overcoat 5 under the effect of spring 4, at this moment, the last needle point of puncture needle 3 is among the pipe 5A1 on the overcoat 5.

Fig. 3 is the present invention's structural representation in use, by this figure as can be known: in use, with the handle 2C on the hand propelled needle stand 2, make gum cover 1, the assembly of needle stand 2 and puncture needle 3 moves upward, and make the pipe 5A1 of puncture needle 3 from overcoat 5 and stretch out, the platform 5C that buckles on the groove 2C1 on the handle 2C and overcoat 5 engages and is in hold mode, at this moment, spring 4 is compressed, guide rod 5D on the overcoat 5 penetrates in the endoporus of the spring overcoat 2B on the needle stand 2, next, just can puncture, a series of actions such as blood sampling, after blood sampling work was finished, only with hand was pulled the button 2C2 on the handle 2C, make engaging between groove 2C1 and the button platform 5C open gum cover 1, the assembly of needle stand 2 and puncture needle 3 will be got back in the inner chamber of overcoat 5 under the effect of spring 4 once more.

Disposable hemostix safe in utilization of the present invention has: the characteristics that function is clear, simple for structure, safe in utilization, simultaneously, use is by disposable hemostix safe in utilization of the present invention, under the prerequisite that meets clinical use working specification, can reduce medical personnel's labor intensity, having tangible character of innovation, is the good solution that instructs this type of medical apparatus and instruments progress.

Claims

1. the present invention is made up of gum cover (1), needle stand (2), puncture needle (3), spring (4) and overcoat (5), it is characterized by: pass the puncture needle base (2A) of puncture needle (3) from needle stand (2), make needle stand (2) be bonded in the middle part of puncture needle (3), gum cover (1) is contained in the hypomere of the puncture needle base (2A) on the needle stand (2), and the end shield that puncture needle (3) is downward is lived, spring (4) is enclosed within on the spring overcoat (2B) on the needle stand (2), and gum cover (1), needle stand (2), puncture needle (3) and spring (4) are placed in the inner chamber of overcoat (5) together.

2. disposable hemostix safe in utilization according to claim 1, it is characterized in that: needle stand (2) is the assembly that is provided with puncture needle base (2A) and spring overcoat (2B) on the pedestal successively and is provided with handle (2C) in its outside, wherein: puncture needle base (2A) passes pedestal formation respectively one section outstanding pipe up and down, spring overcoat (2B) then only has one section upwards outstanding pipe, its endoporus passes pedestal and is penetrating, base plane is to be located narrow near puncture needle base (2A), near the wide fusiformis in spring overcoat (2B) outside, there is thickness to be slightly larger than the connector (2E) of overcoat (5) wall thickness between pedestal and the handle (2C), pedestal the widest part be provided with pedestal with the wide baffle plate that stretches out respectively up and down (2D), form the slit that connector (2E) thickness is only arranged between baffle plate (2D) and the handle (2C), handle (2C) is provided with groove (2C1) towards baffle plate (2D) side, the button (2C2) of the upper end of handle (2C) for outwards protruding upward again earlier.

3. disposable hemostix safe in utilization according to claim 1, it is characterized in that: overcoat (5) is a tube-like thin-wall structure that has outside strip to give prominence to, on its end face, have one to project upwards body (5A) with outstanding corresponding, thin-walled, the one side of strip is scalene cone, on the strip of overcoat (5) is outstanding, be provided with downward slotted eye (5B), be respectively equipped with button platform (5C) in the both sides, upper end of slotted eye (5B), on the end face of excrescence (5A), have downwards and insert into the inner the pipe (5A1) and the guide rod (5D) in chamber.

4. according to claim 1, claim 2 and claim 3: the width of the connector (2E) on the needle stand (2) is greater than the width at the narrow place of fusiformis pedestal, width less than the wide place of fusiformis pedestal, the height of connector (2E) is consistent with the height of pedestal, the height of handle (2C) is consistent with the height of baffle plate (2D) and both bottom surface is concordant, the width of handle (2C) is greater than the width of connector (2E) and suitable with the outstanding width of the strip on the overcoat (5), puncture needle base (2A) center is slightly less than overcoat (5) center to the inboard distance of slotted eye (5B) to the distance of connector (2E), and puncture needle base (2A) center is slightly larger than the distance of overcoat (5) center to slotted eye (5B) outside to the distance of handle (2C).

5. according to claim 1, claim 2 and claim 3: the inboard width that the strip on the overcoat (5) is given prominence to is greater than the Breadth Maximum of the pedestal on the needle stand (2), the width of slotted eye (5B) is slightly larger than the width of the connector (2E) on the needle stand (2) and less than the width at the wide place of fusiformis pedestal, the size of button platform (5C) is suitable with the size and the shape of the groove (2C1) on shape and the needle stand (2), the internal orifice dimension of pipe (5A1) is slightly larger than the diameter of puncture needle (3), concentric and its endoporus is the big down little taper (also can be circle unanimous between the higher and lower levels) of to pipe (5A1) with overcoat (5), guide rod (5D) is positioned in the middle of the line at pipe (5A1) and slotted eye (5B) center, pipe (5A1) center equals the distance of last puncture needle base (2A) center of needle stand (2) to spring overcoat (2B) center to the distance at guide rod (5D) center, and the external diameter of guide rod (5D) is less than the internal orifice dimension of the spring overcoat (2B) on the needle stand (2).

6. according to claim 1, claim 2 and claim 3: spring (4) is installed on the axis between the handle (2C) on puncture needle (3) and the needle stand (2), the guide rod (5D) on this axis and the overcoat (5) and the central lines of the spring overcoat (2B) on the needle stand (2), and have between guide rod (5D) and the spring overcoat (2B) to intert and overlap function.

7. according to claim 1, claim 2 and claim 3: the handle (2C) on the needle stand (2) can form clamping to the tube wall of slotted eye (5B) both sides on the overcoat (5) with baffle plate (2D), makes the axle center of puncture needle (3) keep overlapping with the axle center of overcoat (5).

8. according to claim 1, claim 2 and claim 3: when the slotted eye (5B) of the handle (2C) on the needle stand (2) on overcoat (5) when pushing ahead, groove (2C1) on the needle stand (2) is engaged with the platform (5C) of buckleing on the overcoat (5), and can keep the relative overcoat of assembly (5) stable of gum cover (1), needle stand (2) and puncture needle (3).