CN1565384A - Disposable safety blood taking needle - Google Patents
Disposable safety blood taking needle Download PDFInfo
- Publication number
- CN1565384A CN1565384A CN 03141465 CN03141465A CN1565384A CN 1565384 A CN1565384 A CN 1565384A CN 03141465 CN03141465 CN 03141465 CN 03141465 A CN03141465 A CN 03141465A CN 1565384 A CN1565384 A CN 1565384A
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- China
- Prior art keywords
- needle
- blood taking
- shell fragment
- needle stand
- taking needle
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- 239000008280 blood Substances 0.000 title claims abstract description 53
- 210000004369 blood Anatomy 0.000 title claims abstract description 52
- 239000012634 fragment Substances 0.000 claims description 69
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010241 blood sampling Methods 0.000 description 7
- 238000001467 acupuncture Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000036558 skin tension Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 244000078885 bloodborne pathogen Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012678 infectious agent Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a disposable safety blood taking needle of the medical appliance. It is made up of a blood taking needle elastic body, an elastic pushing rod and an outer casing. It is characterized in that, an elastic piece end hook in the lower end of the elastic piece pushing rod is set on the needle stand side cant, which can pushing the needle stand and blood taking needle to puncturing and taking blood. When the needle stand is back to the end position, the elastic piece end hook extends due to the contact with the elastic piece buckle, the released needle stand and blood taking needle retracts under the elastic body function, and the whole elastic push rod can not move after the elastic pipe end hook is locked by the passing of the elastic piece buckle, which ensures the disposability. Meanwhile, the elastic piece end hook effectively avoids the downward shift of the needle stand and the blood taking needle exposure, thus exert a safety protection function. Since the said design is based on the principles of double side pushing and needle stand naturally retracting, the stability of the needle inlet and outlet is improved, the prickle feeling is reduced.
Description
Technical field:
The present invention relates to blood capillary blood taking needle (lancet) in the medical apparatus and instruments, refer to a kind of disposable blood taking needle (lancet) that has safety guard especially.
Background technology:
Along with the understanding gradually to infectious agent, numerous medical personnels have recognized that and use the sharp-pointed medical apparatus and instruments that has safety guard, the importance that causes blood-borne pathogens to infect to preventing to sting in the treatment process, hurt.Also correspondingly on the market be born that some have the blood taking needle (lancet) of basic security protector; their overwhelming majority are the products of " active disposable "; promptly behind end of operation; need again on one's own initiative its needle point to be handled with hands; as putting cap again; it is become curved; rust or with in its retraction protective sleeve or the like; this active disposable blood taking needle (lancet) is except complicated operation; because of the processing of the second time to its needle point arranged; still might be before processing or in stung again; incised wound is so come poorly at the product than " passive type is disposable " aspect the safeguard protection performance.In addition; though the disposable safe type blood taking needle (lancet) of indivedual passive types is arranged on present international market; be that the operator only need finish action of aculeus blood-taking; its safety guard just can be activated in terminal procedure and needle point is automatically preserved; make it no longer have thorn at once; the two possibility of incised wound the; but this series products fails to take into full account the stationarity of turnover pin; reduction causes the clinical practice requirement of twinge because of needle body trembles; also not having to adapt to the blood sampling that is easy to of dissecting constructs; though the advanced product of only a few is arranged to be desired to achieve the above object; but their project organization is comparatively complicated; cause cost also higher, so have much room for improvement.
Summary of the invention:
The object of the present invention is to provide and a kind ofly can meet sharp-pointed medical apparatus and instruments safety operation theory, not only economy but also practical disposable safe type blood taking needle (lancet), make it when the blood sampling operation is finished, at once needle point is protected, the needle point after preventing to use stings, hurts other people, stops to infect; Simultaneously, according to clinical and dissect to require the design structure invented, make that blood collection procedure is faster, easier, twinge still less, also more can be accepted by the patient, make it become a kind of real disposable safe type product.
For reaching above-mentioned purpose, disposable safe type blood taking needle of the present invention (lancet) is made up of blood taking needle body, shell fragment handle and shell; Be characterized in that the blood taking needle on the blood taking needle body is fixed on the needle stand, the dorsal part of needle stand links to each other with elastic body, the afterbody of elastic body has a stiff end can fix in its holder in the enclosure, elastic body can be made up of various materials such as metal or macromolecules, blood taking needle can be circular needle body, also can be the cutter hub at polygon tip; Two sides at needle stand have needle stand skew back face, the form of the shell fragment end hook on facial part form of its skew back and the shell fragment handle matches, make shell fragment can with its interlock, expansion and downslide, the front and back side of needle stand then has needle stand protruding, but the needle stand guide rail is gone in intercalation, plays stable needle stand and moves.The shell fragment handle, there is the shell fragment end hook lower end, can be embedded on the skew back face of needle stand, transmits to advance needle stand and blood taking needle to carry out aculeus blood-taking, when it crosses shell fragment buckle on the outer casing inner wall, on the one hand, needle stand is released, and the shell fragment end hook can assist elastic body that needle stand is bounced back, on the other hand, the shell fragment end hook is by shell fragment buckle snap close, and can stop that needle stand moves down, needle point exposes, and the upper end of shell fragment then connects shell fragment seat and handle.Shell is covered by the shell buckle of two halfbodies by their edges and to form, and there is an arc port lower end, and it can make the skin tension of blood sampling place increase, and is convenient to puncture needle and thrusts rapidly and reach the desired degree of depth, makes blood sampling easier; Upside at arc port, the shell fragment buckle is arranged on the outer casing inner wall, make the shell fragment end hook after promoting needle stand and being displaced downwardly to terminal point, blood taking needle and thrusting skin, expand to two sides, by being linked closely behind the buckle, make whole shell fragment handle by snap close in the enclosure, can not be used by secondary, the shell fragment end hook behind the snap close then can stop retraction back needle stand and blood taking needle to move down; The inwall of shell can have the needle stand guide rail, and what the guiding needle stand was protruding moves, and guarantees moving up and down of blood taking needle, and needle stand is difficult for moving down behind retraction; The restriction physical ability is positioned on the functional position shell fragment and shell fragment handle, guarantees the normal expansion of shell fragment; Holder on the wall is mainly used in fixedly elastic body end in the enclosure, but its outer rim also fixation spring tab seat and handle; Can there be the gripping position of being convenient to operate in the outside of shell.Because of shell fragment handle and shell all can be injection molded by macromolecular material, so the profile of product can customize according to clinical needs and serviced crowd's requirement.
The present invention's design is a target with the disposable safety product of passive type, has both required the structure of advantages of simple, need have the superiority that certain clinical practice uses again, and its outstanding advantage is as follows:
1. disposable passive type safeguard protection of the present invention can be preserved needle point after being configured in and finishing acupuncture at once voluntarily, has avoided the infection that causes with back needle point thorn, incised wound and by reuse repeatedly, is a kind of effective safety medical apparatus and instruments.
2. the bilateral that designs according to the actual requirement of clinical manipulation advances acupuncture, buckle and discharges needle stand mechanism naturally, and the stationarity when having increased inserting needle and having gone out pin has reduced because of needle point and shaken the sensation of pricking that brings; The design of arc port makes aculeus blood-taking more accurate, faster, operates also more conveniently, more can be accepted by extensive patients.
3. its rationally simple design structure also can be moulded required profile, the requirement of more realistic operation according to clinical practice and each age group patient's needs except reducing production costs.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 is a blood taking needle body structure sketch map of the present invention
Fig. 3 is a shell fragment push bar structure sketch map of the present invention
Fig. 4 is a shell mechanism sketch map of the present invention
Fig. 5 is a use of the present invention back structural representation
Label declaration in the accompanying drawing:
1---blood taking needle body 11---blood taking needle
12---needle stand 13---needle stand skew back face
14---needle stand protruding 15---elastic body
16---stiff end 2---shell fragment handle
21---shell fragment 22---shell fragment end hook
23---shell fragment seat 24---handle
3---shell 31---shell buckle
32---arc port 33---shell fragment buckle
34---needle stand guide rails 35---restriction body
36---holders 37---grip the position
The specific embodiment
At first see also shown in Figure 1ly, disposable safe type blood taking needle of the present invention (lancet) is made up of blood taking needle body 1, shell fragment handle 2, shell 3.Its characteristics are: as shown in Figure 2, the blood taking needle 11 of blood taking needle body 1 is fixed on the needle stand 12, the dorsal part of needle stand 12 connects elastic body 15, the elastic body afterbody has a stiff end 16 can fix in its holder 36 on shell 3 inwalls (to see Fig. 4,5), elastic body 15 can be made up of various materials such as metal or macromolecules, blood taking needle 11 can be circular needle body, also can be the cutter hub at polygon tip, two sides at needle stand 12 have needle stand skew back face 13, the form (see figure 3) of the shell fragment end hook 22 on facial part form of its skew back and the shell fragment handle 2 matches, make shell fragment 21 can with its interlock, can glide after moving down expansion, then have needle stand protruding 14, but intercalation is gone in the needle stand guide rail 34 (see figure 4) and worked to stablize needle stand 12 and move up and down in the front and back of needle stand 12 side.See also the shell fragment handle 2 of Fig. 3, the lower end of shell fragment 21 is a shell fragment end hook 22, be embedded on the needle stand skew back face 13, can transmit and advance needle stand 12 and blood taking needle 11 to carry out aculeus blood-taking, when it crosses shell fragment buckle 33 on shell 3 inwalls (seeing Fig. 4,5), needle stand 12 is released on the one hand, shell fragment end hook 22 can assist elastic body 15 with needle stand 12 and blood taking needle 11 retractions, on the other hand, and when shell fragment end hook 22 is tightly locked by shell fragment buckle 33, can stop needle stand 12 to move down, needle point exposes; The upper end of shell fragment 21 then connects shell fragment seat 23, handle 24 respectively.Please continue to consult Fig. 4, shell 3, cover by the shell buckle 31 of two halfbodies by their edges and to form, there is an arc port 32 lower end, it can make the skin tension of blood sampling place increase, be convenient to thrusting rapidly of blood taking needle 11 and reach the desired degree of depth, make blood sampling easier, upside at arc port 32, shell fragment buckle 33 is arranged on the outer casing inner wall, can promote the needle stands 12 shell fragment end hook 22 that links closely behind the position to terminal, make whole shell fragment handle 2 can not be moved (as Fig. 5) again at shell fragment handle 2, guarantee disposable use, on shell 3 inwalls needle stand guide rail 34 can be arranged, moving of guiding needle stand protruding 14 guarantees needle stand 12 related blood taking needles 11 vertically, and needle stand 12 is difficult for moving down behind retraction, restriction body 35 on the inwall can help shell fragment 21 to be in original position, is convenient to it and normally launches, the holder 36 on inwall, the main fixedly stiff end 16 of elastic body afterbody, the outer rim of holder 36 also can make shell fragment seat 23 limits place in its position of sliding; The outer wall of shell 3 can have the gripping position of being convenient to operate 37.Because shell fragment handle 2, shell 3 all can be formed by the macromolecular material injection moulding, so the profile of product can be according to clinical practice the time needs and patient's requirement change.
Design structure according to the invention described above, during blood sampling, arc port 32 is aimed at the position of the acupuncture of wanting, press push-down handle 24, be embedded in shell fragment end hook 22 on the needle stand skew back face 13 by its lower end, transmit to promote the acupuncture of taking a blood sample of needle stand 12 and blood taking needle 11, when needle stand 12 is pushed to final position can not move down the time again, shell fragment end hook 22 also touches shell fragment buckle 33, make it launch to break away from needle stand skew back face 13, needle stand 12 is released, under the effect of elastic body 15 elastic force, bounce back, the withdraw of the needle, because of needle stand 12 is advanced by bilateral, and its release is to act on the result behind the shell fragment buckle 33 on the shell 3 at shell fragment end hook 22, farthest guarantee the stationarity of needle stand 12, reduced the sensation of pricking that brings because of its concussion; After shell fragment end hook 22 is crossed shell fragment buckle 33; because of the elastic reset of shell fragment 21 link closely shell fragment buckle 33 cause shell fragment handle 2 can not be pulled back again or before push away; simultaneously because of the spacing of 22 of the back both sides shell fragment end hooks of linking closely lower end width less than needle stand 12; stop moving down and the exposing of blood taking needle 11 (as Fig. 5) of retraction back needle stand 12 effectively, played disposable safeguard protection effect.
Above-mentioned is the structural design and the operating principle of disposable safe type blood taking needle of the present invention, and all with design of the present invention, the similar products that principle is designed ought to belong to protection scope of the present invention.
Claims (6)
1. disposable safe type blood taking needle, formed by blood taking needle body, shell fragment handle, shell, it is characterized in that: there is the shell fragment end hook that is embedded on the needle stand skew back face shell fragment handle lower end, can press down the needle stand and the blood taking needle of blood taking needle body, carry out aculeus blood-taking, needle stand is to final position, because of touching shell inner shrapnel buckle, the shell fragment end hook launches, the needle stand and the blood taking needle that discharge bounce back under the effect of elastic body, when the shell fragment end hook cross the shell fragment buckle by snap close after, the shell fragment handle can not be moved again, simultaneously also stop needle stand to move down and the exposing of blood taking needle.
2. disposable safe type blood taking needle according to claim 1 is characterized in that: described blood taking needle body has the needle stand that has blood taking needle, and needle stand two sides are needle stand skew back face, and the front and back side has the needle stand that can embed in the needle stand guide rail protruding, and dorsal part connects elastic body.
3. disposable safe type blood taking needle according to claim 2, it is characterized in that: described elastic body, materials can be various materials such as metal or macromolecule, and afterbody has the elastic body stiff end, can fix in the holder in the enclosure.
4. disposable safe type blood taking needle according to claim 2 is characterized in that: described blood taking needle can be circular needle body, also can be the cutter hub at polygon tip.
5. disposable safe type blood taking needle according to claim 1 is characterized in that: described shell fragment handle, lower end have the shell fragment end hook that can be embedded on the needle stand skew back face, on the shell fragment seat and the handle that connect shell fragment, thicken.
6. disposable safe type blood taking needle according to claim 1 is characterized in that: described shell, and there is arc port the lower end, and inwall has the shell fragment buckle, needle stand guide rail, restriction body and holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141465 CN1565384A (en) | 2003-07-08 | 2003-07-08 | Disposable safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141465 CN1565384A (en) | 2003-07-08 | 2003-07-08 | Disposable safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1565384A true CN1565384A (en) | 2005-01-19 |
Family
ID=34470920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03141465 Pending CN1565384A (en) | 2003-07-08 | 2003-07-08 | Disposable safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1565384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood collection needle |
| CN115040125A (en) * | 2022-06-22 | 2022-09-13 | 苏州施莱医疗器械有限公司 | Tail pressing type hemostix locked by process spring plate |
-
2003
- 2003-07-08 CN CN 03141465 patent/CN1565384A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood collection needle |
| CN115040125A (en) * | 2022-06-22 | 2022-09-13 | 苏州施莱医疗器械有限公司 | Tail pressing type hemostix locked by process spring plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |