CN203953679U - Safety vein blood taking needle - Google Patents
Safety vein blood taking needle Download PDFInfo
- Publication number
- CN203953679U CN203953679U CN201420262614.2U CN201420262614U CN203953679U CN 203953679 U CN203953679 U CN 203953679U CN 201420262614 U CN201420262614 U CN 201420262614U CN 203953679 U CN203953679 U CN 203953679U
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- China
- Prior art keywords
- needle
- blood taking
- vein blood
- taking needle
- shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000008280 blood Substances 0.000 title claims abstract description 137
- 210000004369 blood Anatomy 0.000 title claims abstract description 137
- 210000003462 vein Anatomy 0.000 title claims abstract description 89
- 238000001467 acupuncture Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 230000003044 adaptive effect Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000010241 blood sampling Methods 0.000 description 6
- 239000000470 constituent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000012503 blood component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Finger-Pressure Massage (AREA)
Abstract
The utility model discloses safety vein blood taking needle, comprise venous blood collection needle assembly, the vacuum test tube being connected with venous blood collection needle assembly adaptation, described venous blood collection needle assembly comprises vein blood taking needle, vein blood taking needle needle stand and with the conduit of vein blood taking needle needle stand conducting, described blood taking needle also comprises that one is sheathed on the anti-acupuncture assembly outside vein blood taking needle assembly, described anti-acupuncture assembly comprises the shell being set on vein blood taking needle needle stand, described vein blood taking needle needle stand slides in the enclosure, and described vein blood taking needle is accommodated in shell completely.This utility model carries out anti-acupuncture protection by the shell of vein blood taking needle needle stand and setting, has improved the safety in utilization of blood taking needle.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of disposable use safety vein blood taking needle.
Background technology
In medical field, medical personnel by various means collections, obtain Human Physiology, pathological information, for correctly diagnosing the illness, wherein the collection for blood preparation has following three kinds of approach conventionally: (1) subcutaneous blood sampling, be used for the simple and easy differential counting of blood constituent to detect, use subcutaneous (solid or prismatic) blood taking needle more; (2) venous blood collection, can carry out detailed detection to nosetiology in hematology, blood and other related discipline indexs, very wide in clinical middle application, uses pen type or split type vein blood taking needle more; (3) how arterial blood drawing, detect aterial blood gas indexes following in critical emergency case, applies lessly, uses arterial blood drawing special syringe to gather more.To the collection of blood preparation and check, its objective is by the detection to bacteriology, virological infection level in the analyzing and testing of blood constituent, acquisition blood blood component and blood, to understand Human Physiology and pathologic condition, or the effect after understanding Drug therapy, and to advancing of disease, lapse to and prognosis judges etc.
Venous blood collection is also a kind of comparatively common blood sampling mode, and venous blood collection needle construction comprises puncture needle, puncture needle tail end connecting duct, and the conduit other end connects needle stand, and needle stand outer end connects blood taking needle.During use, by puncture needle, implement venipuncture, after puncturing successfully, blood taking needle is run through and thrust in vacuum test tube, under suction function, blood is drawn in blood taking tube by puncture needle, conduit and blood taking needle; So repeatedly, can realize the collection of multitube time blood specimen, take a blood sample complete, extract venipuncture needle, local hemostasis.
Yet after blood sampling finishes, medical personnel need to extract puncture needle and blood taking needle, and it is carried out to waste treatment, in this process medical personnel also Chang Yi by needle point, stabbed, cause cross infection, danger is larger.
A kind of disposable anti-acupuncture vein blood taking needle has been proposed in Chinese patent 2012100938412, thereby by the anti-acupuncture sheath that setting has a circuitous channel, making puncture needle after extracting, can block puncture needle makes medical personnel avoid being wounded by stabbing, but because being adopts circuitous channel, in practical operation, puncture needle can not well be accommodated in sheath.
As disclosed a kind of disposable use safety type blood-taking needle in China application 201210133995X; by the snap close that arranges on needle tubing with shield with one's own body cover and be combined; puncture needle is locked in protective sleeve; but this structure need to arrange snap close on a plurality of parts; and need to use separately the needle stand with snap close; operation sequence is numerous and diverse, is unfavorable for practical operation.
Utility model content
This utility model object is to provide a kind of disposable use safety vein blood taking needle, has avoided medical personnel to be wounded by stabbing, and has improved the safety in utilization of blood taking needle.
The technical solution of the utility model is:
Safety vein blood taking needle, comprise venous blood collection needle assembly, the vacuum test tube being connected with venous blood collection needle assembly adaptation, described venous blood collection needle assembly comprises vein blood taking needle, vein blood taking needle needle stand and with the conduit of vein blood taking needle needle stand conducting, described blood taking needle also comprises that one is sheathed on the anti-acupuncture assembly outside vein blood taking needle assembly, described anti-acupuncture assembly comprises the shell being set on vein blood taking needle needle stand, described vein blood taking needle needle stand slides in the enclosure, and described vein blood taking needle is accommodated in shell completely.
Preferably, between described vein blood taking needle needle stand and shell, form anti-needling structure, the near-end cross section that described vein blood taking needle needle stand is connected with conduit is flechette-type, and the proximal diameter of described flechette-type is less than the distal diameter of flechette-type; The near-end inwall of described shell is provided with barb, described barb place's diameter is suitable with flechette-type distal diameter, described shell distal-most end opening diameter is suitable with vein blood taking needle needle stand distal diameter, described vein blood taking needle needle stand distal diameter is more than or equal to barb place opening diameter, and vein blood taking needle needle stand near-end can pass from barb.
Preferably, between the near-end of vein blood taking needle needle stand and the far-end of vein blood taking needle, be provided with groove section, between described shell most proximal end and barb, be provided with gap, the most proximal end opening diameter of described shell is less than the distal diameter of flechette-type.
Preferably, described vein blood taking needle needle stand be provided with vein blood taking needle needle handle, on described shell, offer the chute coordinating with described vein blood taking needle needle handle.
Preferably, on vein blood taking needle, be also socketed with needle shield.
Preferably, described barb is the projection that outer casing inner wall arranges.
The utility model has the advantages that: the shell by vein blood taking needle needle stand and setting carries out anti-acupuncture protection, has improved the safety in utilization of blood taking needle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further described:
Fig. 1 is this utility model structural representation;
Fig. 2 is this utility model Figure 1A-A cross-sectional view, is now the original state signal before using;
Fig. 3 is this utility model Figure 1A-A cross-sectional view, is now the state signal after using.
The specific embodiment
This utility model has disclosed a kind of safety vein blood taking needle, in conjunction with shown in Fig. 1 to Fig. 3, consistent with prior art, the vacuum test tube that include venous blood collection needle assembly, is connected with venous blood collection needle assembly adaptation.Described venous blood collection needle assembly comprises vein blood taking needle 6, vein blood taking needle needle stand 7 and with the conduit 3 of vein blood taking needle needle stand conducting, the catheter block 2 of described conduit 3 is connected with a joint 1, described joint 1 is for connecting blood taking tube (meaning not shown in the figures).On described vein blood taking needle 6, be also arranged with needle shield 5, described vein blood taking needle needle stand 7 be provided with vein blood taking needle needle handle 4.Vein blood taking needle needle handle 4 can arrange one or be symmetricly set on needle stand both sides.
Unlike the prior art, described blood taking needle also comprises that one is sheathed on the anti-acupuncture assembly outside vein blood taking needle assembly, described anti-acupuncture assembly comprises the shell 8 being set on vein blood taking needle needle stand 7, described vein blood taking needle needle stand 7, in the interior slip of shell 8, is accommodated in shell 8 described vein blood taking needle 6 completely.
Concrete, between described vein blood taking needle needle stand 7 and shell 8, forming anti-needling structure, near-end 72 cross sections that described vein blood taking needle needle stand is connected with conduit 3 are flechette-type, and the proximal diameter of described flechette-type is less than the distal diameter of flechette-type.
Between the near-end 72 of vein blood taking needle needle stand and the far-end 71 of vein blood taking needle, be provided with groove section 73, the near-end inwall of described shell 8 is provided with barb 81, and described barb 81 at least arranges two, certainly, also can arrange in the border of shell 8 inwalls.
Described barb 81 place's opening diameters are slightly less than flechette-type distal diameter, and the diameter of groove section 73 is suitable with barb 81 place's opening diameters, between described shell 8 most proximal end and barb 81, be provided with gap, the most proximal end opening diameter of described shell 8 is less than the distal diameter of flechette-type.Described shell 8 distal-most end opening diameters are suitable with vein blood taking needle needle stand 7 distal diameter, and shell 8 most proximal end opening diameters are less than vein blood taking needle needle stand 7 distal diameter.General vein blood taking needle needle stand 7 adopts soft materials, so only need operator to apply certain power when entering shell barb place, the flechette-type distortion that is squeezed, can enter barb 81 places, when vein blood taking needle needle stand 7 far-ends pass barb 81 place, flechette-type restores to the original state, and is blocked and be unlikely to vein blood taking needle 6 and skid off outside shell 8 by barb 81.
Described vein blood taking needle needle stand near-end 72 can pass from barb 81, and is accommodated in wherein and not and drops by shell 8.
Meanwhile, due to the existence of groove section 73, at vein blood taking needle 6, toward the interior movement of shell 8, groove section 73 is smoothly by the opening at barb 81 places, and 73 of groove sections are in barb 81 upper ends.
On described shell, offer the chute coordinating with described vein blood taking needle needle handle 4, described shell 8 also can be the hollow tube-shape that a side has strip gab.The upper end of barb 8 is opening.
Below sketch lower use procedure of the present utility model and principle:
Blood taking needle in use, identical with general blood sampling step, first pull out needle shield 5, now vein blood taking needle 6 is outside exposed, medical personnel can puncture for patient by venous blood collection, then by vacuum test tube, under suction function, take a blood sample, blood is drawn in blood taking tube by vein blood taking needle 6, conduit 3, completes blood sampling operation.After blood sampling, extract vacuum test tube, vein blood taking needle 6 is extracted from patient body, vein blood taking needle needle stand 7 moves backward, the near-end 72 of vein blood taking needle needle stand 7 enters into barb 81 places backward while moving, barb 81 pins the near-end of vein blood taking needle needle stand 7 flechette-types, and now vein blood taking needle 6 is contained in shell 8 completely, can not stab medical personnel, improve the safety in utilization of blood taking needle.
Certainly above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications of doing according to the spirit of this utility model main technical schemes, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. safety vein blood taking needle, comprise venous blood collection needle assembly, with the adaptive vacuum test tube being connected of venous blood collection needle assembly, it is characterized in that: described venous blood collection needle assembly comprises vein blood taking needle (6), vein blood taking needle needle stand (7), and with the conduit (3) of vein blood taking needle needle stand conducting, described blood taking needle also comprises that one is sheathed on the anti-acupuncture assembly outside vein blood taking needle assembly, described anti-acupuncture assembly comprises the shell (8) being set on vein blood taking needle needle stand (7), described vein blood taking needle needle stand (7) slides in shell (8), described vein blood taking needle (6) is accommodated in shell (8) completely,
Between described vein blood taking needle needle stand (7) and shell (8), form anti-needling structure, near-end (72) cross section that described vein blood taking needle needle stand is connected with conduit (3) is flechette-type, and the proximal diameter of described flechette-type is less than the distal diameter of flechette-type; The near-end inwall of described shell (8) is provided with barb (81), it is suitable with flechette-type distal diameter that described barb (81) is located diameter, described shell (8) distal-most end opening diameter is suitable with vein blood taking needle needle stand (7) distal diameter, described vein blood taking needle needle stand far-end (71) diameter is more than or equal to barb (81) and locates opening diameter, described vein blood taking needle needle stand near-end (72) can from barb (81) through.
2. safety vein blood taking needle according to claim 1, it is characterized in that: between the far-end (71) of the near-end of vein blood taking needle needle stand (72) and vein blood taking needle, be provided with groove section (73), between described shell (8) most proximal end and barb, be provided with gap, the most proximal end opening diameter of described shell (8) is less than the distal diameter of flechette-type.
3. safety vein blood taking needle according to claim 1, it is characterized in that: described vein blood taking needle needle stand (7) be provided with vein blood taking needle needle handle (4), on described shell, offer the chute coordinating with described vein blood taking needle needle handle (4).
4. safety vein blood taking needle according to claim 3, is characterized in that: on vein blood taking needle, be also socketed with needle shield (5).
5. safety vein blood taking needle according to claim 1, is characterized in that: the projection that described barb (81) arranges for outer casing inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262614.2U CN203953679U (en) | 2014-05-22 | 2014-05-22 | Safety vein blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262614.2U CN203953679U (en) | 2014-05-22 | 2014-05-22 | Safety vein blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203953679U true CN203953679U (en) | 2014-11-26 |
Family
ID=51914324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420262614.2U Expired - Lifetime CN203953679U (en) | 2014-05-22 | 2014-05-22 | Safety vein blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203953679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027119A (en) * | 2014-05-22 | 2014-09-10 | 苏州林华医疗器械有限公司 | Safe type vein blood taking needle |
-
2014
- 2014-05-22 CN CN201420262614.2U patent/CN203953679U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027119A (en) * | 2014-05-22 | 2014-09-10 | 苏州林华医疗器械有限公司 | Safe type vein blood taking needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU LINHWA MEDICAL DEVICES CO.,LTD. Address before: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee before: SUZHOU LINHUA MEDICAL DEVICE CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |