CN102940498B - Venous blood collection needle with cut-off protectors - Google Patents
Venous blood collection needle with cut-off protectors Download PDFInfo
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- CN102940498B CN102940498B CN201210425943.XA CN201210425943A CN102940498B CN 102940498 B CN102940498 B CN 102940498B CN 201210425943 A CN201210425943 A CN 201210425943A CN 102940498 B CN102940498 B CN 102940498B
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- needle
- blood collection
- protection device
- knife rest
- cut
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Abstract
The invention discloses a venous blood collection needle with cut-off protectors, and belongs to a medical appliance. The venous blood collection needle comprises a vein piercing needle head, a negative pressure blood collection needle head and a hose tube, wherein the cut-off protectors are sleeved at the two ends of the hose tube; each cut-off protector comprises a knife rest with a central hole at the tail part; the front end of an upper sheet of the knife rest is bent downwards to form an upper blade; a semi-round edge is arranged on the lower side of the middle of the upper blade; the front end of a lower sheet of the knife rest is bent upwards to form a lower blade; a semi-round edge is arranged on the upper side of the middle of the lower blade; the semi-round edges of the upper blade and the lower blade form a round hole when in a free state, and the diameter of the round hole is greater than that of the hose tube; the hose tube is sleeved in the central hole and the round hole; the upper blade is positioned on the outer side of the lower blade; and the upper blade and the lower blade are in tight fit with each other for cutting. The venous blood collection needle can be cut after being used so as to separate the needle heads from the hose tube, is small in occupied space and is easily thrown in a relatively small and narrow wastecan, so that the probability of a puncture wound of a medical staff caused by the needle heads is greatly reduced and the environmental pollution is reduced. Therefore, the venous blood collection needle can be widely applied to clinical venous blood collection, and the structure of the venous blood collection needle can be also applied to a scalp needle.
Description
Technical field
The invention belongs to medical device technical field, more particularly relate to the design innovation of the vein blood taking needle of band tripping protection device.
Background technology
At present, venous blood collection technology is widely used in clinical assay.Existing vein blood taking needle mostly is single use, namely discards with rear, and its safety in utilization is greatly improved.But, because medical personnel after taking a blood sample need discarded blood taking needle to lose into narrow and small wastecan, and the two ends of vein blood taking needle are with hose connection in the middle of syringe needle, and shape is not fixed, the relative position of two ends syringe needle and flexible pipe very easily changes, and takies larger space.Therefore slightly careless, medical personnel often stab by syringe needle cause infect.
In addition, middle soft because of its overall length with rear discarded vein blood taking needle, be usually difficult to enter wastecan completely, also easily cause the pollution of medical environment.
Summary of the invention
Object of the present invention, is just to overcome above-mentioned shortcoming and defect, provides a kind of vein blood taking needle with tripping protection device.It can be cut after a procedure, syringe needle and flexible pipe are separated, and the space thus taken is less, the relative not malleable in position of syringe needle and flexible pipe, also easily lose into relatively narrow and small wastecan, thus greatly reduce medical personnel stab by syringe needle cause infect probability.In addition, because it easily enters wastecan completely, decrease the pollution to medical environment.
In order to achieve the above object, the present invention includes vein to thrust syringe needle, negative pressure hemostix syringe needle and be communicated with their flexible pipe.Flexible pipe is positioned at the inner side that intravenous injection enters syringe needle and negative pressure hemostix syringe needle and is set with a tripping protection device.Tripping protection device comprises the knife rest that afterbody bends to U-shaped, and the afterbody of knife rest is with mesopore.Upper slice the front end of knife rest is bowed downward to top cutter, and in the middle of top cutter, downside is with semicircle cutting edge.The front end of the bottom sheet of knife rest is bent upwards into bottom knife, and in the middle of bottom knife, upside is with semicircle cutting edge.The semicircle cutting edge composition circular hole of upper and lower blade when knife rest is in free state, the diameter of circular hole is greater than the diameter of flexible pipe.Hose Jacket is contained in mesopore and circular hole, and both outsides tight fit that top cutter is positioned at bottom knife is cut mutually.
A secondary fastener is fixed wtih respectively partly inside upper and lower rear portion of tripping protection device.One secondary fastener to be pressed with hands and is combined by medical personnel, just the pressing of tripping protection device can be locked.Flexible pipe both can press by the tripping protection device after locking, prevented the outflow of remaining blood in flexible pipe from polluting, also can prevent the cutting edge being cut off protector during medical personnel's careless manipulation from injuring.
Tripping protection device is integral type steel strip products, and good springiness cost is lower.
Task of the present invention is exactly complete like this.
The present invention can be cut after a procedure, syringe needle and flexible pipe are separated, and the space thus taken is less, the relative not malleable in position of syringe needle and flexible pipe, also easily lose into relatively narrow and small wastecan, thus greatly reduce medical personnel stab by syringe needle cause infect probability.In addition, because it easily enters wastecan completely, decrease the pollution to medical environment.It can be widely used in clinical vein blood sampling, and its structure also can be applied in scalp acupuncture.
Accompanying drawing explanation
Fig. 1 is population structure schematic diagram of the present invention.
Fig. 2 is the enlarged diagram of tripping protection device.
Fig. 3 is the right view of Fig. 2.
Detailed description of the invention
Embodiment 1.With a vein blood taking needle for tripping protection device, as Figure 1-3.It comprises vein and thrusts syringe needle 3, negative pressure hemostix syringe needle 1 and be communicated with their flexible pipe 2.Flexible pipe 2 is positioned at the inner side that intravenous injection enters syringe needle 3 and negative pressure hemostix syringe needle 1 and is set with a tripping protection device 4.Tripping protection device 4 comprises the knife rest 6 that afterbody 5 bends to U-shaped, and the afterbody 5 of knife rest 6 is with mesopore 7.Knife rest 6 upper slice 12 front end be bowed downward to top cutter 8, top cutter 8 in the middle of downside with semicircle cutting edge 13.The front end of the bottom sheet 10 of knife rest 6 is bent upwards into bottom knife 11, and in the middle of bottom knife 11, upside is with semicircle cutting edge 13.When knife rest 6 is in free state, the semicircle cutting edge 13 of upper and lower blade 8 and 11 forms circular hole 9, and the diameter in circle 9 holes is greater than the diameter of flexible pipe 2.Flexible pipe 2 is sleeved in mesopore 7 and circular hole 9, and both outsides tight fit that top cutter 8 is positioned at bottom knife 11 is cut mutually.
After blood sampling terminates; medical personnel only need exert oneself with finger slightly, and successively pressing vein thrusts the tripping protection device 4 of syringe needle 3 end and negative pressure hemostix syringe needle 1 end, and upper and lower two semicircle cutting edges 13 are cut mutually; two syringe needles successively can be cut together with part flexible pipe 2, make it to fall into wastecan.Simple to operation, safe and reliable.
Half 14 of a secondary fastener is fixed wtih respectively inside upper and lower 12 of tripping protection device 4 and 10 rear portions.Fastener is commercially available product, is welded on upper and lower 12 and 10.After two syringe needles are successively cut together with part flexible pipe 2, then with hands one secondary fastener pressed and be combined, just tripping protection device 4 pressing can be locked.Flexible pipe 2 both can press by the tripping protection device 4 after locking, prevented the outflow of remaining blood in flexible pipe 2 from polluting, also can prevent the cutting edge being cut off protector 4 during medical personnel's careless manipulation from injuring.
Tripping protection device 4 is integral type steel strip products, and good springiness cost is lower.The section of the semicircle cutting edge 13 of upper and lower blade 8 and 11 is wedge shape, sharp easy cutting.
Embodiment 1 can be cut after a procedure, syringe needle and flexible pipe are separated, and the space thus taken is less, the relative not malleable in position of syringe needle and flexible pipe, also easily lose into relatively narrow and small wastecan, thus greatly reduce medical personnel stab by syringe needle cause infect probability.In addition, because it easily enters wastecan completely, decrease the pollution to medical environment.It can be widely used in clinical vein blood sampling, and its structure also can be applied in scalp acupuncture.
Claims (3)
1. the vein blood taking needle with tripping protection device, comprise vein and thrust syringe needle, negative pressure hemostix syringe needle and be communicated with their flexible pipe, it is characterized in that: flexible pipe is positioned at the inner side that intravenous injection enters syringe needle and negative pressure hemostix syringe needle and is set with a tripping protection device, tripping protection device comprises the knife rest that afterbody bends to U-shaped, the afterbody of knife rest is with mesopore, upper slice the front end of knife rest is bowed downward to top cutter, in the middle of top cutter, downside is with semicircle cutting edge, the front end of the bottom sheet of knife rest is bent upwards into bottom knife, in the middle of bottom knife, upside is with semicircle cutting edge, on when knife rest is in free state, the semicircle cutting edge composition circular hole of bottom knife, the diameter of circular hole is greater than the diameter of flexible pipe, Hose Jacket is contained in mesopore and circular hole, both outsides tight fit that top cutter is positioned at bottom knife is cut mutually, two syringe needles successively can be cut together with part flexible pipe.
2., according to the vein blood taking needle of band tripping protection device according to claim 1, inside the upper and lower rear portion that it is characterized in that said tripping protection device, be fixed wtih a secondary fastener half respectively.
3., according to the vein blood taking needle of the band tripping protection device described in claim 1 or 2, it is characterized in that said tripping protection device is integral type steel strip products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425943.XA CN102940498B (en) | 2012-10-18 | 2012-10-18 | Venous blood collection needle with cut-off protectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425943.XA CN102940498B (en) | 2012-10-18 | 2012-10-18 | Venous blood collection needle with cut-off protectors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102940498A CN102940498A (en) | 2013-02-27 |
| CN102940498B true CN102940498B (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210425943.XA Expired - Fee Related CN102940498B (en) | 2012-10-18 | 2012-10-18 | Venous blood collection needle with cut-off protectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102940498B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3217710A (en) * | 1963-03-25 | 1965-11-16 | Abbott Lab | Blood collection and sampling apparatus provided with separable coupling means |
| US3342179A (en) * | 1965-06-18 | 1967-09-19 | Abbott Lab | Blood collection and sampling apparatus having separable coupling means |
| US4326518A (en) * | 1980-04-07 | 1982-04-27 | Baxter Travenol Laboratories, Inc. | Separable integral donor connector with manual clamping means |
| CN201691937U (en) * | 2010-02-08 | 2011-01-05 | 天津市百利康泰生物技术有限公司 | Disposable flexible parallel connection multi-pipe anticoagulant vacuum blood collecting set |
| CN102217965A (en) * | 2010-04-14 | 2011-10-19 | 范勤 | Shearing device for vascular tissues |
| CN102369041A (en) * | 2008-12-10 | 2012-03-07 | 赛多利斯生物技术公司 | Cutting a collapsible tube for biopharmaceutical use |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284104B (en) * | 2011-08-12 | 2014-06-04 | 张亚平 | Safety vein puncture needle |
-
2012
- 2012-10-18 CN CN201210425943.XA patent/CN102940498B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3217710A (en) * | 1963-03-25 | 1965-11-16 | Abbott Lab | Blood collection and sampling apparatus provided with separable coupling means |
| US3342179A (en) * | 1965-06-18 | 1967-09-19 | Abbott Lab | Blood collection and sampling apparatus having separable coupling means |
| US4326518A (en) * | 1980-04-07 | 1982-04-27 | Baxter Travenol Laboratories, Inc. | Separable integral donor connector with manual clamping means |
| CN102369041A (en) * | 2008-12-10 | 2012-03-07 | 赛多利斯生物技术公司 | Cutting a collapsible tube for biopharmaceutical use |
| CN201691937U (en) * | 2010-02-08 | 2011-01-05 | 天津市百利康泰生物技术有限公司 | Disposable flexible parallel connection multi-pipe anticoagulant vacuum blood collecting set |
| CN102217965A (en) * | 2010-04-14 | 2011-10-19 | 范勤 | Shearing device for vascular tissues |
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| Publication number | Publication date |
|---|---|
| CN102940498A (en) | 2013-02-27 |
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Granted publication date: 20150624 Termination date: 20151018 |
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