CN204890006U - Needle is gathered to blood - Google Patents
Needle is gathered to blood Download PDFInfo
- Publication number
- CN204890006U CN204890006U CN201520661181.2U CN201520661181U CN204890006U CN 204890006 U CN204890006 U CN 204890006U CN 201520661181 U CN201520661181 U CN 201520661181U CN 204890006 U CN204890006 U CN 204890006U
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- China
- Prior art keywords
- piston
- syringe
- needle
- handle
- blood
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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 - Fee Related
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Abstract
The utility model provides a needle is gathered to blood, includes cylinder, syringe needle and a blood sampling section of thick bamboo, be provided with the piston in the cylinder, the piston is connected with piston rod one end, the piston rod other end is connected with the push pedal, one side that the piston corresponds the syringe needle is provided with the sealing layer, be provided with fixed shelves ring in the cylinder between piston and the syringe needle, the fixed middle round hole that is provided with of ring that keeps off, the side that the cylinder is close to the syringe needle is connected with a blood sampling section of thick bamboo, the cylinder is close to the push pedal tip and is provided with wing limit, be provided with in the middle of the wing limit with piston rod complex pole hole, be provided with the internal thread on the downthehole wall of pole, it sets up one section external screw thread to correspond on the piston rod, sealing layer cap seal on the piston is fixed when keeping off the round hole that encircles, external screw thread and the locking of interior screw -thread fit, the cylinder outer wall is connected with through the elasticity patchcord and stop blooding pastes, and stop blooding and paste including pressing clamp plate, handle and setting at the sterilized cotton ball who presses the clamp plate lower extreme, the utility model discloses simple structure, it is sealed fixed reliable, avoid the blood specimen to pollute, ensure that the testing result is accurate, effectively avoid the skin swelling.
Description
Technical field
This utility model relates to technical field of medical instrument, specifically a kind of blood collection needle.
Background technology
Blood gas analysis is medically for judging whether body exists the measuring means of acid base imbalance and anoxia and degree of oxygen deficiency etc., in the processes such as acute respiratory failure diagnosis and treatment, surgical operation, play vital effect.Wherein, the best specimen of blood gas analysis is arterial blood, can oxidative metabolism truly in antimer and acid-base balance state, and often getting position is brachial artery, femoral artery, front brachial artery etc.
But clinically, get after blood pulls out pin, generally with aseptic cotton balls pressing blood drawing position, during use, be all first by aseptic cotton balls while be ready to, so just easily because health care workers is careless or careless and inadvertent, timely aseptic cotton balls can not be ready to, aseptic cotton balls must be searched out in addition like this, or replace with cotton swab, because the too little pressing area that causes of cotton swab is too little, in addition, because position is inaccurate or method is improper, blood sampling place may occur that addiction speckle or skin swell, even can develop into false aneurysm, cause suffering to patient; In addition, existing pintle with have larger space between needle tubing, various pollutant easily fall into needle tubing contaminated blood specimen; Direct blood taking needle extracts blood, then by the blood transfer that exhausts in vitro, then chemically examine, blood is exposed in air in the process of transfer, is easily polluted, thus the accuracy of impact inspection structure.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, and sealing is fixing reliable, avoids blood sample to pollute, and guarantees that testing result is accurate, effectively avoids the blood collection needle that skin is swollen, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of blood collection needle, comprise syringe, syringe needle and blood sampling cylinder, piston is provided with in described syringe, piston is connected with piston rod one end, the piston rod other end is connected with push pedal, the side of the corresponding syringe needle of piston is provided with sealant, fixed gear ring is provided with in syringe between piston and syringe needle, circular hole is provided with in the middle of fixing baffle ring, syringe is connected with blood sampling cylinder near the side of syringe needle, syringe is provided with wing limit near push pedal end, the rod aperture coordinated with piston rod is provided with in the middle of wing limit, rod aperture inwall is provided with female thread, on piston rod, correspondence arranges one section of external screw thread, when the sealant cap seal on piston fixes the circular hole of baffle ring, external screw thread and screw-internal thread fit are locked, described syringe outer wall is connected with hemostatic adhesive bandage by elastic cord, hemostatic adhesive bandage includes pressing plate, handle and the sterilized cotton ball being arranged on pressing plate lower end, described handle runs through the center position being arranged on pressing plate, handle entirety in tubular construction, the lower end of handle and the lower limb of pressing plate match, and the lower port of handle is provided with thin film, handle inwall is connected with pressing piston, pressing piston lower surface and thin film, handle inwall surrounds medicine chamber, pressing piston upper end connects push rod.
Further, described push rod upper end is fixedly connected with elastic cord.
Further, the needle stand of described syringe needle is arranged with the needle guard of protection syringe needle.
Further, described sealant entirety is in cone shape structure.
Further, one-body molded between described fixing baffle ring and syringe inwall.
Compared with prior art, the beneficial effects of the utility model are: by arranging sealant, fixing baffle ring and circular hole, when such blood taking needle does not use, sealant on piston can withstand the circular hole on fixing baffle ring, screw-internal thread fit on external screw thread now on piston rod and wing limit is locked, blood drawing chamber is sealed, ensure that the fixing seal of blood taking needle is reliable, can prevent from like this causing extraneous infection; During use, screwed out from the female thread wing limit by piston rod, piston moves, and by direct for blood suction blood sampling cylinder, can prevent dirt from falling into needle tubing contaminated blood specimen, can ensure the accuracy of assay, reduce the labor intensity of medical worker; Syringe outer wall is connected with hemostatic adhesive bandage, hemostatic adhesive bandage can carry out science pressing to blood sampling site, guarantee that point of puncture or blood sampling point are within the scope of pressing, be provided with medicine chamber in handle, by pressing push rod, thin film crushed, medicinal liquid enters sterilized cotton ball, soak blood sampling site, addiction speckle or skin swell to avoid patient's blood sampling site to occur, alleviate patient suffering.To sum up, this utility model structure is simple, and sealing is fixing reliable, avoids blood sample to pollute, and guarantees that testing result is accurate, effectively avoids skin to swell.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of blood collection needle.
Fig. 2 is the structural representation of handle in a kind of blood collection needle.
In figure: 1-syringe, 2-needle guard, 3-syringe needle, 4-takes a blood sample cylinder, 5-fixes baffle ring, 6-circular hole, 7-sealant, 8-, 9-piston rod, 10-push rod, 11-handle, 12-pressing plate, 13-sterilized cotton ball, 14-wing limit, 15-external screw thread, 16-push pedal, 17-female thread, 18-presses piston, 19-thin film, 20-elastic cord.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
Refer to Fig. 1 ~ 2, in this utility model embodiment, a kind of blood collection needle, comprise syringe 1, syringe needle 3 and blood sampling cylinder 4, piston 8 is provided with in described syringe 1, piston 8 is connected with piston rod 9 one end, piston rod 9 other end is connected with push pedal 16, the side of the corresponding syringe needle 3 of piston 8 is provided with sealant 7, fixed gear ring 5 is provided with in syringe 1 between piston 8 and syringe needle 3, circular hole 6 is provided with in the middle of fixing baffle ring 5, syringe 1 is connected with blood sampling cylinder 4 near the side of syringe needle 3, syringe 1 is provided with wing limit 14 near push pedal 16 end, the rod aperture coordinated with piston rod 9 is provided with in the middle of wing limit 14, rod aperture inwall is provided with female thread 17, on piston rod 9, correspondence arranges one section of external screw thread 15, when sealant 7 cap seal on piston 8 fixes the circular hole 6 of baffle ring 5, external screw thread 15 and female thread 17 lock, described syringe 1 outer wall is connected with hemostatic adhesive bandage by elastic cord 20, hemostatic adhesive bandage includes pressing plate 12, handle 11 and the sterilized cotton ball 13 being arranged on pressing plate 12 lower end, described handle 11 runs through the center position being arranged on pressing plate 12, handle 11 entirety in tubular construction, the lower end of handle 11 and the lower limb of pressing plate 12 match, and the lower port of handle 11 is provided with thin film 19, handle 11 inwall is connected with pressing piston 18, pressing piston 18 lower surface and thin film 19, handle 11 inwall surrounds medicine chamber, pressing piston 18 upper end connects push rod 10.
In embodiment, described push rod 10 upper end is fixedly connected with elastic cord 20.
In embodiment, the needle stand of described syringe needle 3 is arranged with the needle guard 2 of protection syringe needle 3.
In embodiment, described sealant 7 entirety is in cone shape structure.
In embodiment, one-body molded between described fixing baffle ring 5 and syringe 1 inwall.
Operation principle of the present utility model is: by arranging sealant 7, fixing baffle ring 5 and circular hole 6, when such blood taking needle does not use, sealant 7 on piston rod can withstand the circular hole 6 on fixing baffle ring 5, external screw thread 15 now on piston rod 9 locks with the female thread 17 on wing limit 14, blood drawing chamber is sealed, ensure that the fixing seal of blood taking needle is reliable, can prevent from like this causing extraneous infection; During use, screwed out from the female thread 17 wing limit 14 by piston rod 9, piston 8 moves, and by direct for blood suction blood sampling cylinder, can prevent dirt from falling into needle tubing contaminated blood specimen, can ensure the accuracy of assay, reduce the labor intensity of medical worker; Syringe 1 outer wall is connected with hemostatic adhesive bandage, hemostatic adhesive bandage can carry out science pressing to blood sampling site, guarantee that point of puncture or blood sampling point are within the scope of pressing, be provided with medicine chamber in handle, by pressing push rod 10, thin film 19 crushed, medicinal liquid enters sterilized cotton ball 13, soak blood sampling site, addiction speckle or skin swell to avoid patient's blood sampling site to occur, alleviate patient suffering.
To those skilled in the art, obvious this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or basic feature, can realize this utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in this utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. a blood collection needle, comprise syringe, syringe needle and blood sampling cylinder, it is characterized in that, piston is provided with in described syringe, piston is connected with piston rod one end, the piston rod other end is connected with push pedal, the side of the corresponding syringe needle of piston is provided with sealant, fixed gear ring is provided with in syringe between piston and syringe needle, circular hole is provided with in the middle of fixing baffle ring, syringe is connected with blood sampling cylinder near the side of syringe needle, syringe is provided with wing limit near push pedal end, the rod aperture coordinated with piston rod is provided with in the middle of wing limit, rod aperture inwall is provided with female thread, on piston rod, correspondence arranges one section of external screw thread, when the sealant cap seal on piston fixes the circular hole of baffle ring, external screw thread and screw-internal thread fit are locked, described syringe outer wall is connected with hemostatic adhesive bandage by elastic cord, hemostatic adhesive bandage includes pressing plate, handle and the sterilized cotton ball being arranged on pressing plate lower end, described handle runs through the center position being arranged on pressing plate, handle entirety in tubular construction, the lower end of handle and the lower limb of pressing plate match, and the lower port of handle is provided with thin film, handle inwall is connected with pressing piston, pressing piston lower surface and thin film, handle inwall surrounds medicine chamber, pressing piston upper end connects push rod.
2. a kind of blood collection needle according to claim 1, is characterized in that, described push rod upper end is fixedly connected with elastic cord.
3. a kind of blood collection needle according to claim 1, is characterized in that, the needle stand of described syringe needle is arranged with the needle guard of protection syringe needle.
4. a kind of blood collection needle according to claim 1, is characterized in that, described sealant entirety is in cone shape structure.
5. a kind of blood collection needle according to claim 1, is characterized in that, one-body molded between described fixing baffle ring and syringe inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661181.2U CN204890006U (en) | 2015-08-25 | 2015-08-25 | Needle is gathered to blood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661181.2U CN204890006U (en) | 2015-08-25 | 2015-08-25 | Needle is gathered to blood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204890006U true CN204890006U (en) | 2015-12-23 |
Family
ID=54912230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520661181.2U Expired - Fee Related CN204890006U (en) | 2015-08-25 | 2015-08-25 | Needle is gathered to blood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204890006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725690A (en) * | 2017-01-09 | 2017-05-31 | 何劲 | A kind of modified pressing hemostat |
-
2015
- 2015-08-25 CN CN201520661181.2U patent/CN204890006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725690A (en) * | 2017-01-09 | 2017-05-31 | 何劲 | A kind of modified pressing hemostat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160825 |