CN108354618A - A kind of visual blood taking needle - Google Patents
A kind of visual blood taking needle Download PDFInfo
- Publication number
- CN108354618A CN108354618A CN201810402985.9A CN201810402985A CN108354618A CN 108354618 A CN108354618 A CN 108354618A CN 201810402985 A CN201810402985 A CN 201810402985A CN 108354618 A CN108354618 A CN 108354618A
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- 210000004369 blood Anatomy 0.000 title claims abstract description 212
- 239000008280 blood Substances 0.000 title claims abstract description 212
- 230000000007 visual effect Effects 0.000 title claims abstract description 34
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 34
- 239000010935 stainless steel Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 25
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000010241 blood sampling Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 4
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 11
- 229960002897 heparin Drugs 0.000 description 11
- 229920000669 heparin Polymers 0.000 description 11
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000017531 blood circulation Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 210000003743 erythrocyte Anatomy 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 238000009534 blood test Methods 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010018910 Haemolysis Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
- A61B5/150396—Specific tip design, e.g. for improved penetration characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
- A61B5/150419—Pointed piercing elements, e.g. needles, lancets for piercing the skin comprising means for capillary action
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
- A61B5/150427—Specific tip design, e.g. for improved penetration characteristics
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Hematology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The present invention relates to a kind of visual blood taking needle, the blood back room that solves the visual blood taking needle of the prior art is big, the indefinite speed of waiting a moment of instruction process, waste blood, blood sampling sample accuracy are low technical problem.The present invention provides a kind of visual blood taking needle, is equipped with transparent needle stand and a both ends all have the stainless steel needle tubing of needle point, blood back room is equipped with blood return tube and lower end blood back room, and blood return tube surrounds inverted " t " type with lower end blood back room；Fixed seal connection is distinguished at the both ends of stainless steel needle tubing and needle stand, and gap is equipped between stainless steel needle tubing and blood return tube；Through blood back hole is equipped on stainless steel needle tubing in blood return tube, blood back hole is connected with blood return tube；Through venthole is equipped on the side wall of filled chamber, venthole is connected with the external world；Filter core is additionally provided in filled chamber, filter core is filled in inside filled chamber, and ventable when filter core is using drying, chance liquid expands closed material and is made.The present invention is widely used in medical instruments field.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of visual blood taking needle.
Background technology
The blood taking needle effect of visible blood-back is operator can judge whether puncture vessel blood sampling succeeds with intuitive way,
The fuzzy subjective judgement for relying on feeling in original blood sampling operation is avoided, working efficiency and blood sampling success rate is effectively increased, subtracts
The pain of few patient.But existing visible blood-back blood taking needle still has drawback：After the better simply product of part-structure punctures
The process that blood back is seen to be indicated is not clear enough, quick, hampers the raising of blood sampling working efficiency.Want clearly to observe
To blood back, need that the sufficiently large of chamber setting will be observed, reducing influences caused by the variation of pressure, results in the body of needle stand in this way
Product is far longer than the needle stand volume of common blood taking needle.But while the observation chamber of visible blood-back blood taking needle increases at present, can also
Bring the concussion rotational steps that adopted blood observes chamber to increase, to cause red blood cell considerable damage cause haemolysis or blood coagulation because
Sub- activity declines, and error is brought to final blood test results.
Currently, the vein blood taking needle of visible blood-back, blood back room is larger, although observation is convenient, this blood taking needle is being adopted
After the completion of blood, since the vein pressure of patient has compressed the air of blood taking needle blood back room, cause when extracting blood taking needle from venous blood,
Compressed air rebound makes remaining blood in needle tubing flow out generation weeping from needle point.The blood of outflow is easily led
Cause the cross-infection in hospital.Further, since the cavity of blood back room consumes the vacuum degree of vacuum blood collection tube inside points, first true
The blood sampling volume of empty heparin tube can be apparent insufficient, and blood sampling volume is insufficient, influences the accuracy of partial detection.Blood collection procedure is in principle
Blood is to flow into heparin tube by needle tubing, but current blood back pin inner chamber is bigger, and blood is to enter cavity to adopt through convolution inflow
Blood vessel has quantitative blood to leave intracavitary and causes blood loss after blood sampling.Currently, blood taking needle is too small when blood back building volume
When, blood flow situation cannot be obviously observed, visual effect is not had.So it is small and visual to be badly in need of a kind of blood back room at present
Blood back needle with obvious effects.
Invention content
The purpose of the present invention is exactly in order to overcome the above-mentioned deficiencies of the prior art, according to capillary theory, to provide a kind of group
At simple in structure, scientific in principle rationally, blood back room is small, acquisition blood volume is substantially reduced and the process of instruction is clear quickly,
The visual blood taking needle that blood sampling sample accuracy significantly improves.
The technical proposal for solving the technical problem of the invention is：
A kind of visual blood taking needle, is equipped with transparent needle stand and a both ends all have the stainless steel needle tubing of needle point, needle stand
Equipped with cutting tip needle stand and butt end needle stand, cutting tip needle stand is internally provided with hollow blood back room, and blood back room top is equipped with blood back
Pipe, blood back room lower part are equipped with lower end blood back room, and blood return tube surrounds inverted " t " type with lower end blood back room；Cutting tip needle stand and docking
Hollow filled chamber is formed after the needle stand assembly and connection of end, filled chamber is connected with lower end blood back room；Stainless steel needle tubing upper end is successively
Across filled chamber, lower end blood back room, blood return tube and the formation cutting tip needle tubing behind the upper end of cutting tip needle stand；Stainless steel needle tubing
Lower end passes through the lower end of butt end needle stand to form butt end needle tubing；The both ends of stainless steel needle tubing and needle stand seal fixed company respectively
It connects, gap is equipped between stainless steel needle tubing and blood return tube；Through equipped with blood back hole, blood back hole on stainless steel needle tubing in blood return tube
It is connected with blood return tube；Through venthole is equipped on the side wall of filled chamber, venthole is connected with the external world；It is additionally provided in filled chamber
Filter core, filter core are filled in inside filled chamber, and ventable when filter core is using drying, chance liquid expands closed material and is made.
Preferably, butt end needle stand connect the top of one end with cutting tip needle stand and is equipped with boss, and the center of boss is equipped with and passes through
The butt end pin hole of butt end needle stand is worn, stainless steel needle tubing runs through butt end pin hole.
Preferably, through centre bore is equipped in the middle part of filter core, boss passes through centre bore.
Preferably, boss is round boss；Filter core is the cyclic structure equipped with centre bore, and the diameter of centre bore is slightly larger than convex
The diameter of platform；The diameter of filter core is slightly less than the diameter of filled chamber.
Preferably, filled chamber top edge and lower edge are respectively equipped with gap.
Preferably, the diameter of filled chamber is more than the diameter of lower end blood back room.
Preferably, assembly and connection mode can be welding, be either bonded and be either threadedly coupled or be interference fitted together.
Preferably, venthole is along the needle stand radial distribution.
Preferably, filter core uses superhigh molecular weight polyethylene material.
Preferably, needle stand is transparent plastic material.
Beneficial effects of the present invention：A kind of composed structure of present invention offer is simple, scientific in principle is reasonable, blood back room is small, adopts
The visual blood taking needle that process that collection blood volume is substantially reduced and instruction is clear quickly, blood sampling sample accuracy significantly improves.
(1) present invention provides a kind of visual blood taking needle, and blood back building volume is substantially reduced compared with prior art, effectively reduces
The waste Yu rotation of blood cause the degree of Erythrocyte Damage in blood back room or observation ward, reduce pain when people's blood sampling；
While the ingehious design of blood back room, filled chamber and filter core, when filter core blocks venthole, the blood sample of acquisition is straight
It connected in stainless steel needle tubing progress heparin tube, and the blood sample for entering blood back room will not enter in heparin tube, significantly improve
The accuracy for acquiring blood sample provides reliable guarantee for final detection blood sample.
(2) ventable when filter core is using drying, chance liquid expands closed material and is made, when using most starting, blood back
Room is in communication with the outside by venthole, using capillary theory, blood can be made quickly and effectively to enter blood back room, make instruction
Process is clearly quick.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the schematic diagram of the front view of the cutting tip needle stand in Fig. 1；
Fig. 3 is the schematic diagram of the upward view of the cutting tip needle stand in Fig. 1；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the schematic diagram of the front view of the butt end needle stand in Fig. 1；
Fig. 6 is the schematic diagram of the vertical view of the butt end needle stand in Fig. 1；
Fig. 7 is the B-B sectional views of Fig. 6；
Fig. 8 is the schematic diagram of the front view of the filter core in Fig. 1；
Fig. 9 is the schematic diagram of the vertical view of the filter core in Fig. 1.
It is marked in figure：1. cutting tip needle stand, 2. butt end needle stands, 31. blood return tubes, 32. lower end blood back rooms, 33. gaps, 4.
Filled chamber, 5. stainless steel needle tubings, 6. cutting tip needle tubings, 7. butt end needle tubings, 71. butt end pin holes, 8. blood back holes, 9. ventilations
Hole, 10. filter cores, 11. boss, 12. centre bores, 13. gaps.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, to help present disclosure is understood.
Method used in the present invention is conventional production method unless otherwise required；Used raw material, such as without special rule
It is fixed, it is conventional commercial product.
Shown in Fig. 1~Fig. 9, a kind of visual blood taking needle provided by the invention is equipped with the needle stand of transparent plastic material
The stainless steel needle tubing 5 of needle point is all had with a both ends；Needle stand is equipped with cutting tip needle stand 1 and butt end needle stand 2, cutting tip needle stand
1 is internally provided with hollow blood back room, and the top of blood back room is equipped with blood return tube 31, and the lower part of blood back room is equipped with lower end blood back room 2, returns
Blood vessel 31 surrounds inverted " t " type blood back room with lower end blood back room 2；Cutting tip needle stand 1 is connected with butt end needle stand 2 by welded seal
It connects；Cutting tip needle stand 1 and butt end needle stand 2 form hollow filled chamber 4 after assembling, and filled chamber 4 is connected with lower end blood back room 2
It is logical.5 upper end of stainless steel needle tubing sequentially passes through filled chamber 4, lower end blood back room 2, blood return tube 31 and is formed behind the both ends of needle stand
Cutting tip needle tubing 6；5 lower end of stainless steel needle tubing passes through butt end needle stand 2 to form butt end needle tubing 7；Stainless steel needle tubing 5 and needle stand two
End is equipped with gap 33 by being welded and fixed sealed connection between stainless steel needle tubing 5 and blood return tube 31, be convenient for blood from blood return tube 31
Flow into blood back room 2.
Through blood back hole 8 is equipped on the stainless steel needle tubing 5 in blood return tube 31, blood back hole 8 is communicated with blood return tube 31；It fills out
It fills through venthole 9 is equipped on the side wall of room 4, for venthole 9 along needle stand radial distribution, this can ensure blood return tube 31, lower end
Air in blood back room 2 and filled chamber 4 is discharged from venthole 9.Filter core 10 is additionally provided in filled chamber 4, filter core 10 is filled in filling
Inside room 4, the use superhigh molecular weight polyethylene material of filter core 10 is made, and makes filter core 10 with ventable when drying, chance blood is swollen
Swollen closed performance.The top that butt end needle stand 2 connect one end with cutting tip needle stand 1 is equipped with boss 11, and stainless steel needle tubing 5 runs through
Boss 11；10 middle part of filter core passes through centre bore 12 through centre bore 12, boss 11 is equipped with.
Mainly divide three processes using the visual blood taking needle acquisition blood sample of the present invention：First, when the use present invention's
Before visual blood taking needle blood sampling, butt end needle tubing 7 is blocked, cutting tip needle tubing 6 is venipuncture, passes sequentially through blood back hole 8, blood back
Pipe 31, lower end blood back room 2, filled chamber 4 and internal ventilative filter core 10 and venthole 9 are ensureing the same of blood sampling accuracy in detection
When be connected to greatest extent with the external world, be remarkably improved acquisition blood sample when blood back speed with closing venthole 9 speed
Degree.Second, it is taken a blood sample using the visual blood taking needle of the present invention when puncturing vein, the pressure and capillary theory of venous blood itself
With under the action of vacuum blood collection tube negative pressure, blood sample along cutting tip needle tubing 6 at blood back hole 8 after sequentially enter blood back again
Pipe 31, lower end blood back room 2, filled chamber 4, finally contact with filter core 10, and it is closed that venthole 9 is completely stifled that filter core 10 meets blood expansion
Firmly and filter core 10 closely surrounds boss 11, can be complete by the air in blood return tube 31, lower end blood back room 2 and filled chamber 4
It is discharged from venthole 9, ensures the leakproofness of entire blood back room and filled chamber 4.Visual blood back room can be understood during this and is filled out
The blood flow situation in room 4 is filled, while maximally reducing the volume of blood back room and filled chamber 4, has both reduced the wave of blood
Take, and reduces feeling of pain when people's blood sampling.Third, after the chance blood expansion of filter core 10 is closed blocks venthole 9 completely, blood
Liquid cannot flow out from blood back hole 8, and butt end needle tubing 7 is connected to heparin tube, and blood is directly quickly logical by stainless steel needle tubing 5
It crosses at butt end needle tubing 7 and enters in heparin tube, venous blood is directly entered by stainless steel needle tubing 5 in vacuum blood collection tube, is completed
After the acquisition of sample, then carry out blood relevant item detection.The blood finally acquired needs not move through blood back room, effectively avoids
When using current existing visual blood taking needle, in blood back room, rotation causes Erythrocyte Damage to blood, and effectively avoids packing material
The error of blood sampling sample caused by the absorption of blood, to significantly improve the accuracy of acquisition blood, to also be to improve most
The accuracy of whole blood test results provides guarantee, has significant practicability.
Shown in Fig. 5~Fig. 9, it is preferred that boss 11 is round boss, and the center of boss 11, which is equipped with, runs through butt end needle stand
2 butt end pin hole 71, stainless steel needle tubing 5 run through butt end pin hole 71；Filter core 10 is the cyclic structure equipped with centre bore 12, in
The diameter in heart hole 12 is slightly larger than the diameter of boss 11；The diameter of filter core 10 is slightly less than the diameter of filled chamber 4；The diameter of filled chamber 4
More than the diameter of 2 bottom of lower end blood back room；Filter core 10 is respectively equipped with gap 13 with 4 top edge of filled chamber and lower edge simultaneously,
Ensure to greatest extent to be connected with the external world while blood sampling accuracy in detection, improves the speed of blood circulation, i.e., by stainless steel
Gas in needle tubing 5 and blood back room and filled chamber 4 quickly excludes, while quickly blocking the venthole 9 being in communication with the outside,
Make to form closed environment inside needle stand, following blood can more rapidly pass through stainless steel needle tubing 5 and enter in heparin tube, very
A blood collection procedure is quick, accurately, reduces the loss of blood to greatest extent.
Butt end needle tubing 7 of the present invention is additionally provided with mating rubber blood resistance unit, butt end needle tubing 7 is blocked before use, in use
Opening rubber blood resistance unit makes blood flow into heparin tube, and butt end needle tubing 7 is blocked after use and is used for closed blood, prevents remaining blood
Liquid stream goes out to pollute.
The present invention's is obviously reduced due to the volume of blood back room, and 31 elongated visualization of blood return tube is high, so needle stand body
Product size can be identical as the needle stand size of common blood taking needle, can be matched with common safety type needle holder, use the present invention
Visual blood taking needle after, after the syringe needle of blood taking needle is protected, convenient for collect, to avoid syringe needle from causing secondary wound to human body
Evil.
The present invention provides a kind of visual blood taking needle, and blood back building volume is substantially reduced compared with prior art, is effectively reduced back
The waste Yu rotation of blood cause the degree of Erythrocyte Damage in blood room or observation ward, reduce pain when people's blood sampling；Together
When blood back room, filled chamber 4 and filter core 10 ingehious design, when filter core 10 blocks venthole 9, the blood sample of acquisition
Product are directly by 5 progress heparin tube of stainless steel needle tubing, significantly improving the accuracy of acquisition blood sample, for final detection blood
Sample provides reliable guarantee.Ventable when filter core 10 is using drying, chance liquid expands closed material and is made, and most starts using
When, blood back room is in communication with the outside by venthole 9, using capillary theory, blood can be made quickly and effectively to enter blood back room,
Keep the process of instruction clearly quick.
The flashback chamber chamber of current existing blood back needle is bigger, and blood is to enter cavity to flow into heparin tube through convolution, is adopted
There is the intracavitary that quantitative blood leaves blood back needle to cause blood loss after blood, about wastes 0.3mL blood；Preferential, this
When the blood about 0.1ml of the bright visual blood back needle observation of method, reach that visual effect is notable, and enters the blood of blood back room not
Heparin tube can be entered back into, observation is only served and only uses, is to separate with detection blood, until blood collection finishes, it is right at present to meet
A kind of blood back room is small and the demand of the apparent blood back needle of visual effect.
It the above is only the embodiment of the present invention, such as 10 material of filter core can be ventable chance liquid when any use is dry
Body expands closed material and is made；Cutting tip needle stand 1 can be either bonded by welding or screw thread connects with butt end needle stand 2
It connects, or interference fit is together etc., stainless steel needle tubing 5 is consolidated with needle stand both ends by sealings such as the be bonded, parts that is sealedly and fixedly connected
Fixed connection, needle stand volume size can make according to actual needs, and the visual blood taking needle of the present invention may be implemented.
Only as described above, only specific embodiments of the present invention, when the model that cannot be limited the present invention with this and implement
It encloses, all equivalent changes and modifications done according to scope of the present invention patent, should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of visual blood taking needle, is equipped with transparent needle stand and a both ends all have the stainless steel needle tubing of needle point, the needle
Seat is equipped with cutting tip needle stand and butt end needle stand, and the cutting tip needle stand is internally provided with hollow blood back room, which is characterized in that institute
It states blood back room top and is equipped with blood return tube, blood back room lower part is equipped with lower end blood back room, and blood return tube surrounds down with lower end blood back room
Set T-shape；Form hollow filled chamber after the cutting tip needle stand and the butt end needle stand assembly and connection, the filled chamber with
Lower end blood back room is connected；Stainless steel needle tubing upper end sequentially passes through the filled chamber, lower end blood back room, described
Blood return tube simultaneously forms cutting tip needle tubing behind the upper end of the cutting tip needle stand；It is described right that stainless steel needle tubing lower end passes through
The lower end for connecing end needle stand forms butt end needle tubing；The both ends of the stainless steel needle tubing and the needle stand are sealedly and fixedly connected respectively,
Gap is equipped between the stainless steel needle tubing and the blood return tube；Run through on the stainless steel needle tubing in the blood return tube and is equipped with
Blood back hole, the blood back hole are connected with the blood return tube；Through equipped with venthole, the ventilation on the side wall of the filled chamber
Hole is connected with the external world；Filter core is additionally provided in the filled chamber, the filter core is filled in inside the filled chamber, and the filter core is adopted
Ventable when with drying, chance liquid expands closed material and is made.
2. a kind of visual blood taking needle according to claim 1, which is characterized in that the butt end needle stand and the cutting tip
The top that needle stand connects one end is equipped with boss, and the center of the boss is equipped with the butt end pin hole through the butt end needle stand,
The stainless steel needle tubing runs through the butt end pin hole.
3. a kind of visual blood taking needle according to claim 2, which is characterized in that through the center of being equipped in the middle part of the filter core
Hole, the boss pass through the centre bore.
4. a kind of visual blood taking needle according to claim 3, which is characterized in that the boss is round boss；The filter
Core is the cyclic structure equipped with centre bore, and the diameter of the centre bore is slightly larger than the diameter of the boss；The diameter of the filter core
It is slightly less than the diameter of the filled chamber.
5. a kind of visual blood taking needle according to claim 4, which is characterized in that the filter core and the filled chamber top edge
It is respectively equipped with gap with lower edge.
6. a kind of visual blood taking needle according to claim 1, which is characterized in that the diameter of the filled chamber be more than it is described under
Hold the diameter of blood back room.
7. a kind of visual blood taking needle according to claim 1, which is characterized in that the assembly and connection mode can be welding,
Either bonding is either threadedly coupled or is interference fitted together.
8. a kind of visual blood taking needle according to claim 1, which is characterized in that the venthole radially divides along the needle stand
Cloth.
9. a kind of visual blood taking needle according to claim 1, which is characterized in that the filter core uses superhigh molecular weight polyethylene
Alkene material.
10. a kind of visual blood taking needle according to claim 1, which is characterized in that the needle stand is transparent plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402985.9A CN108354618B (en) | 2018-04-28 | 2018-04-28 | Visual blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402985.9A CN108354618B (en) | 2018-04-28 | 2018-04-28 | Visual blood taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108354618A true CN108354618A (en) | 2018-08-03 |
| CN108354618B CN108354618B (en) | 2024-03-08 |
Family
ID=63009727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810402985.9A Active CN108354618B (en) | 2018-04-28 | 2018-04-28 | Visual blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108354618B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421185A (en) * | 2023-04-14 | 2023-07-14 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926649A (en) * | 2010-09-03 | 2010-12-29 | 威海鸿宇医疗器械有限公司 | Visible blood-back blood taking needle |
| CN102160793A (en) * | 2011-03-08 | 2011-08-24 | 成都普什医药塑料包装有限公司 | Dripping-proof backflow-blood-observable venous blood taking needle |
| CN103099627A (en) * | 2011-11-11 | 2013-05-15 | 温州市贝普科技有限公司 | Blood taking needle capable of enabling returning blood to be seen |
| CN204581301U (en) * | 2015-01-29 | 2015-08-26 | 山东新华安得医疗用品有限公司 | The straight type blood taking needle of visual blood back |
| CN206239425U (en) * | 2016-07-27 | 2017-06-13 | 河北鑫乐医疗器械科技股份有限公司 | A kind of blood taking needle |
| CN208958143U (en) * | 2018-04-28 | 2019-06-11 | 威海赛威医疗科技有限公司 | A kind of visual blood taking needle |
-
2018
- 2018-04-28 CN CN201810402985.9A patent/CN108354618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926649A (en) * | 2010-09-03 | 2010-12-29 | 威海鸿宇医疗器械有限公司 | Visible blood-back blood taking needle |
| CN102160793A (en) * | 2011-03-08 | 2011-08-24 | 成都普什医药塑料包装有限公司 | Dripping-proof backflow-blood-observable venous blood taking needle |
| CN103099627A (en) * | 2011-11-11 | 2013-05-15 | 温州市贝普科技有限公司 | Blood taking needle capable of enabling returning blood to be seen |
| CN204581301U (en) * | 2015-01-29 | 2015-08-26 | 山东新华安得医疗用品有限公司 | The straight type blood taking needle of visual blood back |
| CN206239425U (en) * | 2016-07-27 | 2017-06-13 | 河北鑫乐医疗器械科技股份有限公司 | A kind of blood taking needle |
| CN208958143U (en) * | 2018-04-28 | 2019-06-11 | 威海赛威医疗科技有限公司 | A kind of visual blood taking needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421185A (en) * | 2023-04-14 | 2023-07-14 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
| CN116421185B (en) * | 2023-04-14 | 2023-09-29 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
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| Publication number | Publication date |
|---|---|
| CN108354618B (en) | 2024-03-08 |
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