CN109316193A - Disposable micro negative pressure hemostix hemospast - Google Patents
Disposable micro negative pressure hemostix hemospast Download PDFInfo
- Publication number
- CN109316193A CN109316193A CN201811163814.1A CN201811163814A CN109316193A CN 109316193 A CN109316193 A CN 109316193A CN 201811163814 A CN201811163814 A CN 201811163814A CN 109316193 A CN109316193 A CN 109316193A
- Authority
- CN
- China
- Prior art keywords
- negative
- blood
- disk
- pressure container
- blood vessel
- Prior art date
- 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.)
- Granted
Links
- 239000008280 blood Substances 0.000 claims abstract description 160
- 210000004369 blood Anatomy 0.000 claims abstract description 160
- 210000004204 blood vessel Anatomy 0.000 claims description 85
- 238000000034 method Methods 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000017531 blood circulation Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010241 blood sampling Methods 0.000 description 15
- 238000012360 testing method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 238000011017 operating method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 208000030507 AIDS Diseases 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 208000002672 hepatitis B Diseases 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 102000003929 Transaminases Human genes 0.000 description 1
- 108090000340 Transaminases Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000006379 syphilis Diseases 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
-
- 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
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
-
- 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
-
- 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15105—Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dermatology (AREA)
- Pain & Pain Management (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention relates to medical blood taking instrument technical fields, the disposable micro negative pressure hemospast of offer, it mainly include outer sleeve, negative-pressure container, press ring, blood taking needle, wherein there are cavity and in vacuum or negative pressure state in negative-pressure container, press ring is control unit, for triggering setting and the spring in outer sleeve, it is pierced into skin to which water stain driving blood taking needle moves down, and rubber bodies are provided between blood taking needle and negative-pressure container, it should be critical component, pass through the setting of internal channel, when so that blood taking needle being in upper position, it is not identical as negative-pressure container, and once blood taking needle moves down piercing skin, then it is connected to negative-pressure container, the cavity automatic sucking blood of vacuum in negative-pressure container or negative pressure state therewith, and setting piston plate can squeeze out blood in negative-pressure container, reach and blood is taken to act on, it is suitable for voluntarily taking a blood sample.
Description
Technical field
The present invention relates to medical blood taking instrument technical field more particularly to a kind of disposable micro negative pressure hemostix hemospasts.
Background technique
Blood testing is the most common methods for the diagnosis of diseases, and human body various diseases can all pass through the indices of blood substantially
It is embodied, is disposal vacuum hemostix used by usual medical worker, human vein is inserted by blood taking needle, due to
Negative pressure in blood collecting bottle influences, and blood automatically flows into blood collecting bottle, and this mode is most-often used when needing quantitatively to take a blood sample, but
It is to be not easy to user voluntarily to take a blood sample use, it is necessary to professional operation be carried out by medical staff, made troubles to quick diagnosis, with most
New medical diagnosis on disease technology development, self-test can be obtained in the case where obtaining a small amount of blood by much having communicable disease,
Facilitate user from quickly judgement, such as AIDS, syphilis, hepatitis B disease is surveyed, operating process is simple, usually test paper form, will lack
Amount blood is added dropwise to test paper test section, can be read after a period of time as a result, this device for just needing user voluntarily to take a blood sample.
Authorization Notice No. is that a kind of disposable automatic blood sampling dress is disclosed in CN201394021Y Chinese utility model patent
It sets, the blood-taking device structure is relatively simple, has certain automatic implementation effect, by spring energy storage releasing pattern by blood taking needle
It is quickly pierced into skin with certain dynamics, obtains blood sampling effect, but the product can not obtain and take blood effect, only by skin
It punctures, blood is allowed voluntarily to gush out (or even needing user to be squeezed out with hand, to bring obvious pain), it need to also be by other tools by blood
Liquid absorption is added dropwise to detection position.
A kind of vacuum assist hemostix is disclosed in the Chinese invention patent that application publication number is CN107212892A,
Equally being pierced into cutaneous form using blood taking needle, blood was collected, and vacuum chamber is arranged onto blood-taking device the product, so that adopting
Negative pressure is received after skin is punctured during blood to be influenced to promote to flow out and acquired, however in the invention, blood taking needle, blood taking needle
Seat, spring and control device are in the front protective shell body needed for collecting blood, lead to device internal volume mistake
Greatly, do not have good vacuum effect, and device front end there is no setting for be connected in skin for blood circulation
Channel, blood collection effect is bad, and is also not easy to take out the effect for being formed and being oozed after blood collection.
A kind of vacuum blood collection tube is disclosed in the international patent application that for another example application publication number is CN102802525A,
Have vacuum cavity for negative pressure hemostix, by way of twolip syringe needle, is pierced into skin vein and vacuum chamber respectively, form blood
Liquid stream enters the channel of vacuum chamber, however apparatus of the present invention do not have the automatic implementation effect of height still, needs to be used for respectively will
One end of blood taking needle is pierced into human body, and the other end is pierced into vacuum blood collection tube again, and needs to carry out by this sequencing, in blood-taking needle
Entering to carry out after human body other operations again obviously will increase pain and operating time.
Summary of the invention
Technical problem
Related to the aforementioned prior art, disposable blood taking device necessarily requires structure that is easy to operate, while guaranteeing compact, reduces
The consumption of making material reduces cost of manufacture, disposable popularization purpose can be reached, deficiency compared with the prior art,
The present invention also needs to overcome traditional blood taking needle blood sampling operating procedure more, and blood collection procedure is slow, or even needs actively to squeeze bleeding and cause
Excessively feeling of pain the problem of, in addition, traditional blood taking needle or hemostix can not directly push out blood after blood sampling, need to beat
Open utensil or by other utensils such as suction pipe dropper etc., operate it is relatively cumbersome, blood sample transmit in each container it is easy by
To pollution, and the container for acquiring splendid attire blood sample can not accomplish very little, and the blood sample for being not easy to the later period takes out.
Accordingly, primary and foremost purpose of the invention is to provide a kind of easy to operate disposable blood taking device, to keep it is small and exquisite with
Compact structure has lower manufacturing cost, is suitble to mass production and batch to use, while blood collection procedure is quickly continuously to subtract
Light pain, operating procedure is few, and convenient for users to personal, secondly the blood sample of acquisition can be directly removed, in addition to the present invention
The efficient and convenient property for improving self-test by other any tools is not needed outside hemospast, and avoids blood sample contaminated.
The present invention is suitable for personal from survey, such as the test paper detection of blood group, transaminase, hepatitis B, AIDS.
Disposable micro negative pressure hemospast provided by the invention includes being in outermost outer sleeve, inside outer sleeve
The negative-pressure container of top, the press ring in outer sleeve lower inside, the outer sleeve and negative-pressure container are cylindrical barrel
Structure, there are internal cavities inside the outer sleeve, bottom is hollow out state, and the top fixed setting of institute's negative-pressure container is outside
At the upper end one of sleeve, cylindrical center's axis of the outer sleeve and negative-pressure container is at same straight line, the outer sleeve
Inner wall at be provided with the symmetrical vertically arranged positive stop strip of twice, the upper end of the positive stop strip is connected and fixed by connection strap
On the inner wall of outer sleeve, the lower end one of the positive stop strip of the two sides is resisted against at the upper end two of press ring, the press
The upper end two of ring is between one inside of lower end of two sides positive stop strip, and the top outer diameter of the press ring is limited less than two sides
The lower end one of item in the raw under spacing, opposite, the bottom end outer diameter of the press ring is greater than two sides positive stop strip
Lower end one in the raw under spacing, then two sides positive stop strip can be strutted by pressing ring movement vertically upward, make its it
Between spacing increase, this be the hemospast trigger mechanism a part, it is described press ring approximate mid-section region lateral wall on set
It is equipped with a circle retainer ring one, the corresponding retainer ring two of a circle, the retainer ring are provided on the bottom inside wall of the outer sleeve
One outer diameter is in the top of retainer ring two greater than the internal diameter and retainer ring one of the retainer ring two, which is retainer ring two
By one support of retainer ring, it is provided with spacing block set on the inner wall of the middle part same area of the symmetrically arranged positive stop strip in two sides,
It is put between the spacing block set and is provided with triggering disk, the triggering disk is with certain thickness ring-shaped object, center
There is cylindrical Through-cavity in region, the outer diameter for triggering disk is less than the internal diameter of the press ring, and the internal diameter of the press ring is from upper
It is consistent under, can be passed through from the inside of press ring when triggering disk moves down, the spacing block set on the positive stop strip
Latch is both provided on inner sidewall, correspondingly, on the triggering disk outer wall two sides be provided in corresponding position it is corresponding with latch
Latch recess, latch recess are etat lacunaire, and the latch, which can correspond to, to be entrapped in latch recess so that triggering disk is solid
Due on spacing block set, it is irremovable that disk is triggered under this state, and is pressed when ring pushes up against two sides positive stop strip and enabled to limit
The distance between position item increases and latch is made to be detached from latch recess, to press on circumferential direction triggering when being pushed through certain state
The limit fixation that disk loses latch, which can be detached from, to be moved down, this is a part of the hemospast trigger mechanism.
In addition, the negative-pressure container is in the top of triggering disk, the outer diameter of negative-pressure container is less than the outer diameter of triggering disk, negative pressure
Container is the object of a shelly-shaped composition, inside there are cylindrical cavity, inner wall is in smooth state, and upper and lower has top
Lid and bottom cover, the upper and lower sides edge of the edge and negative-pressure container of top cover and bottom cover are sealing state, phase on the bottom cover
Perforative Small Holes are symmetrically arranged with to its center point two sides, are fixedly installed rubber bodies on the lower end surface of bottom cover, this is this hair
One of bright key, the rubber bodies are made of upper and lower two parts, are with shape by the part one that shape is rounding mesa-shaped respectively
Columned part two forms, and the part one is integrated state with part two, is intended merely to facilitate present invention narration by its point
Description is opened, remaining position is sealing other than Small Holes position between the upper surface of the part one and the lower end surface of negative-pressure container
It is fixedly connected, the twice that are internally provided with of part one lead to blood vessel slot one, and the twice lead to the center of one opposite segments one of blood vessel slot
Axisymmetrical, bottom are mutually drawn close, and top is separated from each other, and twice lead to the top of blood vessel slot one across the upper of part one
Surface and it is connected respectively with the symmetrical Small Holes on bottom cover, the axial centerline of the part two and part one is all set
It is equipped with logical blood vessel slot two, the logical blood vessel slot two at part two and one central axis of part is connected state, leads to blood vessel slot two and forms
One, essence is also one, and only part one uses described separately with part two, and the bottom end of the logical blood vessel slot two passes through portion
Divide two lower surface, lead to the upper surface of the top close part one of blood vessel slot two but do not run through its upper surface, described two logical
The lower end of blood vessel slot one is connected with the approximate mid-section region of logical blood vessel slot two, so that at logical blood vessel slot one and logical blood vessel slot two
In connected state.
Additionally include blood taking needle, blood taking needle is tubular needle body, inside be available for the tube seat cavity of blood circulation,
Bottom end is sharp state, and bottom end can pierce human skin, and top is flat mouth state, and the outer diameter of the blood taking needle is equal to aforementioned logical
The internal diameter of blood vessel slot two, the upper end position is inserted in logical blood vessel slot two and the outer wall of upper-end part of driving is tightly attached to logical blood vessel slot two
Inner wall on, the top of blood taking needle can be inserted into always and abut against logical blood vessel while the upper end position is inserted into logical blood vessel slot two
The top end of slot two；When the top of blood taking needle is inserted into the logical blood vessel slot two in one position of part, lead to blood vessel slot one with
Connection position can not be connected to by blood taking needle obstruction between logical blood vessel slot two, and when the top of blood taking needle is only inserted in part two
When in the logical blood vessel slot two at position, blood taking needle is connected to logical blood vessel slot one under this state.
The lower end area of blood taking needle is fixedly installed press disk, and press disk is circular discoid object, and blood taking needle is in press
The center point of disk, the bottom end needle point position of blood taking needle are in the lower section of press disk, and press disk is in the lower section of triggering disk, and pushes up
Platen and triggering disk are in relatively parallel state, while pressing internal diameter of the outer diameter again smaller than press ring of disk.
Spring is provided with above the triggering disk, the outer diameter of spring is less than the outer diameter of triggering disk, but its internal diameter is greater than negative
The upper area of the outer diameter of pressure vessel, spring is nested on negative-pressure container, and the top of spring is resisted against the upper end one of outer tube
Lower end surface on, bottom end be resisted against triggering disk upper surface on, since the position of the upper end one of outer tube is relatively fixed, then
Extruding can be formed to spring by pushing up triggering disk, so that spring obtains elasticity and stores power, when triggering disk is fixed on the latch of convex block
When position, spring is in squeezed state, has elasticity and stores power, and once presses top on ring and strut two sides positive stop strip, then touches
Quotation loses fixation, and spring, which can push triggering disk moment, to be the trigger process of trigger mechanism of the present invention, and trigger under disk moment
Press disk can be hit by, which moving, moves down the blood taking needle fixed with press disk, and the bottom end needle point of blood taking needle is completed to pierce through skin downwards
Movement, and trigger when disk is contacted with press disk downwards and belong to shock and contact, there is apparent impact force, may make blood taking needle more
Strong downward formed to skin punctures.
Negative-pressure container is internally provided with piston plate, and the outer diameter of piston plate is equal to the interior of negative-pressure container inner cylindrical cavity
Diameter, the collar wall of piston plate is tightly attached on the inner wall of negative-pressure container and piston plate can be along negative-pressure container inner cylindrical cavity
It moves up and down, the collar wall of piston plate is made of rubber material, can reach close with the inner wall contact site of negative-pressure container
Envelope state, negative-pressure container inside uses vacuumize process or Negative pressure in the lower cavity below piston plate, once it adopts
Blood needle moves down, and after logical blood vessel slot one is connected to blood taking needle, then the lower cavity of negative-pressure container can be connected to blood taking needle, be taken a blood sample at this time
Needle bottom end is pierced under the skin, and lower cavity is in vacuum or negative pressure state, and the blood under skin in capillary can be by pressure
Difference influences to be sucked into negative-pressure container, completes blood collection procedure.
The upper surface of piston plate is fixedly installed vertically arranged piston rod, and piston rod a part passes through the top of negative-pressure container
Lid is in the top of top cover, and the hole that piston rod passes through is available on top cover, piston rod can opposite top cover move up and down from
And piston plate is pushed, the top of piston rod is provided with pressing plate, facilitates finger pressing pressing plate to piston rod and piston
Disk is pushed.
In addition, the two sides of piston rod are provided with symmetrically arranged limited block, the spacing between the limited block and piston plate
Greater than the thickness of the top cover of negative-pressure container, and the two sides of opposing pistons bar are provided with perforation corresponding with limited block on top cover
Mouthful, openings can be passed through when the limited block of the piston rod two sides is adjusted to certain position, under this state, limited block does not influence
Piston rod moves up and down, and when limited block and openings be in misaligned state, limited block can not by openings across top cover,
At limited block in the upside of top cover and when limited block and openings are in misaligned state then piston rod be defined position can not
It moves down.
Only needing to rotate piston rod after blood sampling makes limited block corresponding with openings position, then limited block can pass through
Openings, so that piston rod can push downwards piston plate, the blood in negative-pressure container lower cavity can be extruded.
Advantageous effect of the invention
Operating process of the invention is one coherent, only press ring bottom need to be resisted against to finger or limb skin surface presses,
Then trigger mechanism can start therewith, keep the pressing state of hemostix, and blood sampling can be automatically performed, and then need to take out blood sample
When need to only rotate piston rod or pressing plate, mix up position i.e. pressable and piston rod and piston plate pushed to squeeze out blood sample, it is whole
The operating procedure of a process is few, and it is convenient to operate, and without other utensils, and the blood collection procedure time is short, effectively reduces use
The feeling of pain and pain number of person.
As improvement above-mentioned, the lateral wall of rubber bodies is enclosed with metal valve jacket, can make rubber bodies inner material more
Be it is close, prevent from extending out so that the internal diameter of logical blood vessel slot two expands.
As improvement above-mentioned, vertical anti-drop rod is fixedly installed on the upper surface of the press disk, on the triggering disk
Corresponding position is provided with perforation hole, the top of the anti-drop rod passes through the top end of corresponding perforation hole and anti-drop rod
More than triggering disk upper surface, the strip being laterally arranged is provided on the top of anti-drop rod, same strip is also on triggering disk
More than end face, and the length of strip is greater than the internal diameter of perforation hole, and such strip can be limited in always triggering disk upper end
More than face, strip can limit anti-drop rod whereabouts, in the case where triggering disk is in stationary state, can limit press disk and adopt
The whereabouts of blood needle prevents blood taking needle upper end during packed and transported to be detached from rubber bodies.
As improvement above-mentioned, the outer diameter of the press disk is equal to or more than the outer diameter of triggering disk, and triggering disk is de- in this way
User is stopped manually triggering disk not to be fixed on latch again by press disk from lower backwardness.
As improvement above-mentioned, the upper surface of the top cover of the negative-pressure container is provided with and limits in the two sides of opposing pistons bar
The corresponding dent of position block, the bottom of limited block is trapped in dent when the limited block of the piston rod two sides is adjusted to certain position
It is interior, prevent the random rotation of piston rod.
As improvement above-mentioned, the length that the blood taking needle is in press disk section below is less than the length of logical blood vessel slot two
Degree, disengaging logical blood vessel slot two in its top makes blood collection procedure fail when blood taking needle being prevented to be pierced into skin downwards.
As improvement above-mentioned, the upper end edge of the triggering disk is arranged using cambered surface chamfering, then in production process
It is easy to trigger disk to be placed between spacing block set.
As improvement above-mentioned, the bottom of the outer sleeve is provided with demountable protective cap, and protective cap can use
It is screwed or the form of cassette fixation is covered in the bottom of outer sleeve, there are back cover, protective cap inside to be formed for protective cap bottom
Height is greater than the maximum distance that press ring stretches out outer sleeve, then protective case is covered can prevent press ring quilt behind the bottom of outer sleeve
It is pushed away in touching so that device trigger mechanism is opened, when use throws off protective case.
Detailed description of the invention
Fig. 1 is integral outer stereoscopic schematic diagram of the invention.
Fig. 2 is whole schematic cross-sectional view of the invention.
Fig. 3 is whole schematic cross-sectional view under another visual angle of the present invention.
Fig. 4 is each component decomposition texture schematic diagram of the present invention.
Fig. 5 is that the present invention uses preceding state lower section structural schematic diagram.
Fig. 6 is state lower section structural schematic diagram after triggering in use process of the present invention.
Fig. 7 is the partial enlargement schematic cross-sectional view at negative-pressure container position in the present invention.
Fig. 8 is that the preceding state of use of rubber body region is shown with the enlarged partial cross-sectional structure using shifting state under rear blood taking needle
It is intended to.
Fig. 9 is the sectional area structural schematic diagram that the present invention takes blood operating process state.
Figure 10 is the whole schematic cross-sectional view that the present invention improves embodiment.
Figure 11 is the cross section structure schematic diagram that the present invention improves embodiment.
Specific embodiment
It elaborates with reference to the accompanying drawing to specific embodiments of the present invention and embodiment.
Referring to Fig. 2 and Fig. 3, of the invention is specifically consisted of the following parts: outer sleeve 10, negative-pressure container 20, press ring 30,
Positive stop strip 40, triggering disk 50, rubber bodies 60, blood taking needle 70, press disk 71, spring 80, piston plate 90, piston rod 91, pressing plate
92.Wherein, outer sleeve 10 is in outermost and wraps up whole part, inside there are internal cavities, bottom is hollow out state
That is bottom uncovered, the symmetrical positive stop strip 40 of twice is provided at the inner wall of outer sleeve 10, and positive stop strip 40 is vertically arranged, the upper end
Portion is fastened on the inner wall of outer sleeve 10 by connection strap 41, is provided with spacing block set on the inner wall of middle part same area
43, triggering disk 50 is arranged between spacing block set 43, and the triggering disk 50 is with certain thickness ring-shaped object, center
Region is both provided with latch 44 there are cylindrical cavity on the inner sidewall of spacing block set 43, trigger on 50 outer wall of disk two sides right
Position is answered to be provided with latch recess 51 corresponding with latch 44, latch recess 51 is etat lacunaire, and the latch 44 can correspond to
It is entrapped in latch recess 51 so that triggering disk 50 is fixed on spacing block set 43, triggering disk 50 is not removable under this state
Dynamic, the bottom position of outer sleeve 10 is arranged in press ring 30.
As can be seen from Figure, the lower end 1 of positive stop strip 40 is resisted against at the upper end 2 31 of press ring 30, is pressed in this way
The upper end 2 31 of ring 30 is between one 42 inside of lower end of two sides positive stop strip 40, since the top outer diameter of press ring 30 is small
In the lower end of two sides positive stop strip 40 1 in the raw under spacing, and press ring 30 bottom end outer diameter be greater than two sides
The lower end 1 of positive stop strip 40 in the raw under spacing, press ring 30 is when moving up under positive stop strip 40 in this way
Outer diameter between end 1 can be increasing, so that two sides positive stop strip 40 is softened, increases spacing between it, positive stop strip 40
The distance between suddenly increase so that latch 44 be detached from latch recess 51, to press touching when ring 30 pushes up against certain state
The limit fixation that quotation 50 loses latch 44 can be detached from and move down, and press the inside of ring 30 there are cylindrical cavity,
Its internal diameter is consistent from top to bottom, and the outer diameter of triggering disk 50 is less than the internal diameter of the press ring 30, and triggering disk 50 moves down
When can from press ring 30 inside pass through, in addition the inside of outer sleeve 10 is arranged in spring 80, and upper and lower side presses against housing
Between the upper end 1 and triggering disk 50 of cylinder 10.
The principle of trigger mechanism of the present invention in Fig. 5, Fig. 6, in Fig. 5, latch 44 will trigger that disk 50 is fixed, this is to use preceding shape
State pushes up the press ring 30 (using limb skin ejection) and positive stop strip 40 is made to be softened the then disengaging of latch 44 latch recess
51, before use, spring 80 is in energy storage state, triggering 50 moment of disk loses fixation, and spring 80 can push down on rapidly it, such as
Shown in Fig. 6, subsequent needle motion is completed.
A circle retainer ring 1, corresponding outer sleeve 10 are provided on the lateral wall in the approximate mid-section region of press ring 30
Bottom inside wall on be provided with the corresponding retainer ring 2 12 of a circle, the outer diameter of the retainer ring 1 is greater than the retainer ring two
12 internal diameter and retainer ring 1 are in the top of retainer ring 2 12, then retainer ring 1 is limited nothing by retainer ring 2 12
Method falls, and it is that can not also fall that fixed press ring 30, which is in certain position, with retainer ring 1, then pressing ring 30 can locate always
In the bottom of outer sleeve 10, avoid falling off during packed and transported.
Negative-pressure container 20 is in the inner upper of outer sleeve 10 as seen from the figure, and outer wall is fixed at outer sleeve 10
Upper end 1 at, the outer sleeve 10 and cylindrical center's axis of negative-pressure container 20 are at same straight line, negative-pressure container
20 outer diameter is less than the outer diameter of triggering disk 50, and (purpose of the setting is and the bullet in order to enable spring to cover on negative-pressure container
The outer diameter of spring is less than triggering disk 50 surely), negative-pressure container 20 is a shelly-shaped object, inside there are cylindrical cavity, in
Wall is in smooth state.
Fig. 7 is the enlarged partial sectional view at 20 position of negative-pressure container, and there are top cover 21 and bottom cover 22, top covers for upper and lower
21 and the edge of bottom cover 22 and the upper and lower sides edge of negative-pressure container 20 are sealing state, in its opposite the center point on bottom cover 22
Two sides are symmetrically arranged with perforative Small Holes 23, are fixedly installed rubber bodies 60 on the lower end surface of bottom cover 22, this is of the invention
One of key, the rubber bodies 60 are divide into upper part and lower part, and it with shape is round that respectively shape, which is the part 1 of rounding mesa-shaped,
Columnar part 2 62 forms.
Fig. 8 is the partial enlargement demonstration graph under 60 two states of rubber bodies, the part 1 and part 2 62 of rubber bodies 60
It is integrated state, is intended merely to that the present invention is facilitated to describe its is described separately, the upper surface of the part 1 and negative-pressure container
Remaining position is to be sealedly and fixedly connected other than 23 position of Small Holes between 20 lower end surface, and part 1 is internally provided with two
Road leads to blood vessel slot 1, and the central axis that the twice lead to one 63 opposite segments 1 of blood vessel slot is symmetrical, and bottom is mutually drawn close,
Its top be separated from each other, and twice lead to blood vessel slot 1 top pass through part 1 upper surface and respectively with bottom cover 22
On symmetrical Small Holes 23 be connected, the part 2 62 and the axial centerline of part 1 are both provided with connected state
Logical blood vessel slot 2 64, lead to blood vessel slot 2 64 bottom end pass through part 2 62 lower surface, lead to blood vessel slot 2 64 top it is close
The upper surface of part 1 but not run through its upper surface, the lower end of two logical blood vessel slots 1 with logical blood vessel slot 2 64
Approximate mid-section region be connected so that logical blood vessel slot 1 is in connected state with logical blood vessel slot 2 64.
70 upper-end part of driving of blood taking needle is inserted in logical blood vessel slot 2 64, and the upper-end part of driving of blood taking needle 70 can be along logical blood vessel slot
2 64 move up and down, and blood taking needle 70 is tubular needle body, inside be available for the tube seat cavity of blood circulation, bottom end is sharp
State, bottom end can pierce human skin, and top is flat mouth state, and the outer diameter of the blood taking needle 70 is equal to aforementioned logical blood vessel slot two
64 internal diameter, then its outer wall can be tightly attached on the inner wall of logical blood vessel slot 2 64 after the insertion of the upper end position, and blood taking needle 70
Top can be inserted into always the top end for abutting against logical blood vessel slot 2 64；When the top of blood taking needle 70 is inserted into part 1
When in the logical blood vessel slot 2 64 at position, it is connected to position between logical blood vessel slot 1 and logical blood vessel slot 2 64 by blood taking needle 70 and blocks nothing
Method connection, and when the top of blood taking needle 70 is only inserted in the logical blood vessel slot 64 in 2 62 position of part, it adopts under this state
Blood needle 70 is connected to logical blood vessel 1.
The variation that blood taking needle 70 moves down, original state are illustrated in Fig. 8,70 top of blood taking needle is inserted into always logical blood
The top of tube seat 2 64, then the connection position for leading to blood vessel slot 1 and logical blood vessel slot 2 64 can not by the needle body of blood taking needle obstruction
Connection, then the internal cavities of this state negative-pressure container can not be connected to blood taking needle, and blood taking needle is downward in blood sampling operating process
After moving a certain distance, when the top of blood taking needle is moved to logical blood vessel slot one and is connected to the lower section at position with logical blood vessel slot two, blood sampling
Needle is the tubular needle body being connected to up and down, then leads to blood vessel slot one under this state, logical blood vessel slot second level blood taking needle is interconnected, negative pressure appearance
The internal cavities of device are also connected to blood taking needle, form blood circulation channel, and whole operation only needs blood taking needle to move down piercing
Skin.
The lower end area of blood taking needle 70 is fixedly installed press disk 71, and press disk 71 is center of circle disk-shaped article, blood taking needle 70
It is in the center point of press disk 71, the bottom end needle point position of blood taking needle 70 is in the lower section of press disk 71, and press disk 71 is in touching
The lower section of quotation 50, and press disk 71 and triggering disk 50 is in relatively parallel state, at the same press the outer diameter of disk 71 again smaller than
Press the internal diameter of ring 30.
Once triggering disk 5 loses fixation as shown in fig. 6, trigger mechanism is opened, there is certain storage power above it
Spring can push triggering disk 50 moment, and press the lower section that disk 71 is located at triggering disk 50, and triggering disk 50, which moves down, can hit press disk
71 make it that blood taking needle 70 be driven to move down, and complete blood sampling movement, wherein the mesh of cylindrical cavity is arranged at triggering 50 center of disk
It is timely in order not to hindering rubber bodies 60 to pass through with blood taking needle 70 from therebetween；Hit what level pressure disk 71 moved down in triggering disk 50
There is obvious impact force in the process, stronger puncture limb skin completes blood sampling when blood taking needle is moved down
Movement.
Piston plate 90 is arranged in negative-pressure container 20, and the outer diameter of piston plate 90 is equal to 20 inner cylindrical cavity of negative-pressure container
Internal diameter, the collar wall of piston plate 90 is tightly attached on the inner wall of negative-pressure container 20 and piston plate 90 can be along negative-pressure container 20
Portion's cylindrical cavity moves up and down, and the collar wall of piston plate 90 is made of rubber material, and the inner wall of remaining negative-pressure container 20 connects
Contact portion position can achieve sealing state, and the lower cavity 24(in 90 lower section of piston plate, which is shown in Fig. 6, inside negative-pressure container 20 schemes
Number) interior using vacuumize process or Negative pressure, once blood taking needle 70 moves down, after logical blood vessel slot 1 is connected to blood taking needle 70,
Then the lower cavity 24 of negative-pressure container 20 can be connected to blood taking needle 70, and blood taking needle bottom end is pierced under the skin at this time, and lower part is empty
Chamber 24 is in vacuum or negative pressure state, and the blood under skin in capillary can be influenced to be sucked into negative-pressure container by pressure difference,
Complete blood collection procedure.
The upper surface of piston plate 90 is fixedly installed vertically arranged piston rod 91, and 91 a part of piston rod passes through negative pressure and holds
The top cover 21 of device 20 is in the top of top cover 21, and hole (the i.e. piston rod 91 that piston rod 91 passes through is available on top cover 21
Can be passed through from the hole, at the hole it is unnecessary use sealed set), piston rod 91 can be moved up and down with respect to top cover 21 from
And piston plate 90 is pushed, the top of piston rod 91 is provided with pressing plate 92, facilitates finger pressing pressing plate 92 to piston
Bar 91 and piston plate 90 are pushed.
In addition, the two sides of piston rod 91 are provided in symmetrically arranged limited block 93(Fig. 2 due to for cut away view, limited block
93 positions, which are cut, not to be shown, referring to Fig. 1 and Fig. 3 aspect view), the spacing between the limited block 93 and piston plate 90 is greater than
(because original state lower piston disk 90 is located at 21 lower section of top cover, and limited block 93 is located at the thickness of the top cover 21 of negative-pressure container 20
21 top of top cover), and the two sides of opposing pistons bar 91 are provided with openings 25 corresponding with limited block 93 on top cover 21, it is described
The limited block 93 of 91 two sides of piston rod can pass through openings 25 when being adjusted to certain position, under this state, the not shadow of limited block 93
Piston rod 91 is rung to move up and down, and when limited block 93 and openings 25 are in misaligned state, limited block 93 can not pass through perforation
Mouthfuls 25 pass through top cover 21, at limited block 93 in the upside of top cover 21 and when limited block 93 and openings 25 are in misaligned state
Then piston rod 91 is defined position and can not move down.
Only needing to rotate piston rod 91 after blood sampling makes limited block 93 corresponding with 25 position of openings, then limited block 93
It can be by openings 25, so that piston rod 91 can push downwards piston plate 90, in 20 lower cavity 23 of negative-pressure container
Blood can be extruded.
Equally, when the present invention carries out assembling processing, piston plate 90 and piston rod 91 can also be inserted into negative-pressure container 20,
Piston plate 90 is tucked into always the bottom of negative-pressure container 20, and the upper-end part of driving of blood taking needle 70 is then inserted into logical blood vessel slot 2 64
It is interior, it is inserted into the top of logical blood vessel slot 2 64 always, then leads to blood vessel slot 2 64 and is blocked with logical blood vessel slot 1, by stirring work
Upwards, then piston plate 90 can carry out vacuumize process to negative-pressure container 20 to stopper rod 91, so that the lower cavity of negative-pressure container 20
24 obtain negative pressure state, can save special vaccum-pumping equipment by the operating process and carry out vacuumizing place to negative-pressure container 20
Reason；It then can be rotated piston rod 91 when pulling out limited block 93 on piston rod 91 and being located above top cover 21 across openings 25 to live
Stopper rod 91 and openings 25 misplace, then limited block can not move down, and piston rod 91 is also fixed in the location status, negative-pressure container 20
It may remain in negative pressure state, entire operation process is quick and easy, is suitble to assembly line processing.
Concrete operation method of the invention:
The outer wall that outer sleeve 10 is lived by finger grip is kept by the lower end for pressing ring 30 on the skin of finger or limbs
The Relative vertical of hemostix and skin surface presses down on pressing hemostix, extracts after blood taking needle 70 is inserted into skin 1-2s, then
Blood sampling movement is completed；Ring 30 is pressed when pressing hemostix to be pushed upwards by skin and strut positive stop strip 40, triggers disk therewith
50 lose fixation, and 80 moment of spring pushes triggering 50 pairs of press disks 71 of disk to collide, and blood taking needle 70 is pushed to be downwardly into skin
In skin, blood taking needle 70 is connected to blood taking needle with logical blood vessel slot 1, then passes through blood taking needle 70 and logical blood vessel slot
1 and Small Holes 23 lower cavity 24 of negative-pressure container 20 is connected to the capillary under skin, lower cavity 24 is in
Negative pressure state can aspirate the blood in capillary moment, be in 1-2, the interior receipts that a certain amount of blood sample can be completed
Collection usually only needs few drops.
As shown in figure 9, making the position of limited block 93 and openings 25 right by rotating piston rod 91 when carrying out taking blood
It answers, then can push piston rod 91 downwards, then piston plate 90 squeezes the blood in negative-pressure container 20 so that blood is from blood sampling
70 lower end of needle squeezes out, and the blood dripped from 70 lower end of blood taking needle can be used for test paper detection, so the present invention is suitble to user's disease
The blood sampling of self-test takes blood.
From aforesaid operations as can be seen that 70 need of blood taking needle once penetrate and stop of short duration time can be automatically performed blood sampling dynamic
Make, without other artificial operations (such as squeezing out blood, push piston, be inserted into other blood-taking devices etc.), greatly shortens pain
Time and pain number, while during taking blood without other take blood equipment (such as suction pipe dropper, without
Apparatus of the present invention are opened, need to only rotate piston rod 91 and push can be used to detect by blood extrusion, and whole operation process is rapid
It is convenient.In addition, internal structure of the invention is compact, making material is simple, low manufacture cost, is able to maintain small and exquisite structure, side
Just packaging operation, and the needle body position of blood taking needle 70 without aperture installed plug as connection mechanism, therefore blood taking needle 70
It can accomplish very tiny pain when mitigation is taken a blood sample.
In addition, compared to, in the prior art using in vacuum negative pressure blood-taking method, blood taking needle is connected to usual in background technique
Way is, blood taking needle two ends, which are disposed as sharp state, (can also have an other similar form, such as two syringe needle intermediate connections are soft
Pipe), one end syringe needle is first inserted into skin or blood vessel, then other end syringe needle is inserted into vacuum tube in a variety of manners, the two of which
A disadvantage, it is relatively cumbersome in operation, need the medical staff of profession to carry out and will be in strict accordance with operating procedure, and needle at one end
It is had begun after head insertion human body and causes pain, the other end be difficult to avoid that when corresponding operating in the intracorporal syringe needle hair of people
Raw relative movement or shake, then further result in pain, and advantage of the present invention can then embody, and is set by ingenious at rubber bodies 60
Meter, blood taking needle 70 move down the i.e. openable communicating passage with negative-pressure container 20 while certain distance, avoid blood taking needle
70 in human body for a long time stop caused by pain.
Preferably, as shown in figure 8, the lateral wall of rubber bodies 60 is enclosed with metal valve jacket 65, metal valve jacket 65 belongs to hard
Valve jacket, deformation is minimum, and rubber bodies 60 belong to soft materials, easily deforms, then metal valve jacket 65 can make in rubber bodies 60
Portion's substance more closely, prevents the deformation of rubber bodies 60 from extending out so that leading to the internal diameter expansion of blood vessel slot 2 64, the improved advantage
It is to reach better seal and imitate so that the inner wall of logical blood vessel slot 2 64 is closer with the contact of 70 upper-end part of driving outer wall of blood taking needle
Fruit.
Preferably, described to press the upper of disk 71 as shown in Figure 10 perspective cross-sectional schematic diagram and Figure 11 cross section structure schematic diagram
It is fixedly installed vertical anti-drop rod 72 on end face, is provided on the triggering disk 50 in corresponding position and penetrates through hole 52, it is described anti-
The top of de- bar 72 passes through corresponding perforation hole 52 and the top end of anti-drop rod 72 is triggering 50 upper surface of disk or more, anticreep
The strip 73 being laterally arranged is provided on the top of bar 72, same strip 73 is also at triggering 50 upper surface of disk or more, and blocks
The length of item 73 is greater than the internal diameter of perforation hole 52, and such strip 73 can be limited in always triggering 50 upper surface of disk or more,
Strip 73 can limit anti-drop rod 72 whereabouts, trigger disk 50 be in stationary state in the case where, can limit press disk 71 and
The whereabouts of blood taking needle 70 prevents 70 upper end of blood taking needle during packed and transported to be detached from rubber bodies 60.
As improvement above-mentioned, the outer diameter of the press disk 71 is equal to or more than the outer diameter of triggering disk 50, in this way triggering disk
50 under disengaging fall behind by press disk stop user can not manually again will triggering disk 50 be fixed to latch 44 on.
As improvement above-mentioned, the upper surface of the top cover 21 of the negative-pressure container 20 is arranged in the two sides of opposing pistons bar 91
There is dent 26 corresponding with limited block 93, the limited block 93 of 91 two sides of piston rod is adjusted to limited block 83 when certain position
Bottom can be trapped in dent 26, prevent the random rotation of piston rod 91.
As improvement above-mentioned, the blood taking needle 70 is less than logical blood vessel slot two in the length for being in press 71 section below of disk
64 length, disengaging logical blood vessel slot 2 64 in its top makes blood collection procedure fail when blood taking needle 70 being prevented to be pierced into skin downwards.
As improvement above-mentioned, the upper end edge 53 of the triggering disk 50 is arranged using cambered surface chamfering, when production process
It is easy to trigger disk to be placed between spacing block set 43.
As improvement above-mentioned, as shown in figure 11, the bottom of the outer sleeve 10 is provided with demountable protective cap 13,
Protective cap 13 can using be screwed or cassette it is fixed in the form of cover in the bottom of outer sleeve 10, there is envelope in 13 bottom of protective cap
Bottom, the height formed inside protective cap 13 are greater than the maximum distance that press ring 30 stretches out outer sleeve 10, then 13 sets of protective case is outside
It can place that press ring 30 is touched above to be pushed away so that device trigger mechanism is opened behind the bottom of sleeve 10, when use throws off protection
Set 13.
Claims (8)
1. a kind of disposable micro negative pressure hemospast, it is characterised in that: including outer sleeve (10), negative-pressure container (20) presses ring
(30), the outer sleeve (10) and negative-pressure container (20) are cylindrical barrel structure, inside the outer sleeve (10) in presence
Portion's cavity, bottom are hollow out state, and the top of the negative-pressure container (20) is fixed at the upper end one of outer sleeve (10)
(11) at, cylindrical center's axis of the outer sleeve (10) and negative-pressure container (20) is at same straight line, the outer sleeve
(10) the symmetrical vertically arranged positive stop strip (40) of twice is provided at inner wall, the upper end of the positive stop strip (40) passes through company
Narrow bars (41) are fastened on the inner wall of outer sleeve (10), and the lower end one (41) of the positive stop strip (40) of the two sides is resisted against
It presses at the upper end two (31) of ring (30), the top outer diameter of press ring (30) is less than the lower end of two sides positive stop strip (40)
One (42) in the raw under spacing, bottom end outer diameter be greater than two sides positive stop strip (40) lower end one (42) be in nature
Spacing under state, press ring (30) movement vertically upward can strut two sides positive stop strip (40), press ring (30)
It is provided with a circle retainer ring one (32) on the lateral wall in approximate mid-section region, is arranged on the bottom inside wall of the outer sleeve (10)
There is the corresponding retainer ring two (12) of a circle, the outer diameter of retainer ring one (32) is greater than the internal diameter and retainer ring one of retainer ring two (12)
(32) top of retainer ring two (12) is in, on the inner wall of the middle part same area of the symmetrically arranged positive stop strip in two sides (40)
It is provided with spacing block set (43), is put between the spacing block set (43) and be provided with triggering disk (50), the triggering disk (50) is
With certain thickness ring-shaped object, there is cylindrical Through-cavity in central area, and the outer diameter of triggering disk (50) is less than top
The internal diameter of pressure ring (30) is both provided with latch (44) on the inner sidewall of the spacing block set (43) on the positive stop strip (40), accordingly
, two sides are provided with latch recess (51) corresponding with latch (44), latch in corresponding position on triggering disk (50) outer wall
It is recessed (51) as etat lacunaire, the latch (44), which can correspond to, to be entrapped in latch recess (51) so that triggering disk (50)
It is fixed on spacing block set (43), press ring (30) enables between positive stop strip (40) when pushing up against two sides positive stop strip (40)
Distance increase and make latch (44) be detached from latch recess (51), in addition, the negative-pressure container (20) is in triggering disk
(50) top, the outer diameter of negative-pressure container (20) are less than the outer diameter of triggering disk (50), and negative-pressure container (20) is a shelly-shaped composition
Object, inside there are cylindrical cavity, inner wall is in smooth state, upper and lower there are top cover (21) and bottom cover (22),
The upper and lower sides edge of the edge and negative-pressure container (20) of top cover (21) and bottom cover (22) is sealing state, the bottom cover (22)
Its upper opposite the center point two sides are symmetrically arranged with perforative Small Holes (23), are fixedly installed rubber on the lower end surface of bottom cover (22)
Body (60), the rubber bodies (60) are made of upper and lower two parts, respectively the part one (61) by shape for rounding mesa-shaped and shape
For columned part two (62) composition, the part one (61) and part two (62) are integrated state, the part one (61)
Upper surface and negative-pressure container (20) lower end surface between other than Small Holes (23) position remaining position be sealedly and fixedly connected,
The twice that are internally provided with of part one (61) lead to blood vessel slot one (63), and the twice lead to blood vessel slot one (63) opposite segments one (61)
Central axis it is symmetrical, bottom is mutually drawn close, top be separated from each other, and twice lead to blood vessel slot one (63) top pass through
The upper surface of part one (61) and be connected respectively with the symmetrical Small Holes (23) on bottom cover (22), the part two (62) with
Logical blood vessel slot two (64), part two (62) and part one (61) central axis are both provided at the axial centerline of part one (61)
Logical blood vessel slot two (64) at line is connected state, and the bottom end of the logical blood vessel slot two (64) passes through the following table of part two (62)
Face leads to the upper surface of the top close part one (61) of blood vessel slot two (64) but does not run through its upper surface, the two logical blood
The lower end of tube seat one (63) is connected with the approximate mid-section region of logical blood vessel slot two (64), so that leading to blood vessel slot one (63) and leading to
Blood vessel slot two (64) is in connected state, additionally includes blood taking needle (70), and blood taking needle (70) is tubular needle body, internal to exist
For the tube seat cavity of blood circulation, bottom end is sharp state, and top is flat mouth state, the outer diameter etc. of the blood taking needle (70)
In the internal diameter of logical blood vessel slot two (64), the upper end position is inserted in logical blood vessel slot two (64) and the outer wall of upper-end part of driving is close to
On the inner wall of logical blood vessel slot two (64), the top of blood taking needle (70) while the upper end position is inserted into logical blood vessel slot two (64)
It can be inserted into the top end for abutting against logical blood vessel slot two (64) always, when the top of blood taking needle (70) is inserted into part one
(61) when the logical blood vessel slot two (64) at position is interior, position is connected between logical blood vessel slot one (63) and logical blood vessel slot two (64) and is taken a blood sample
Needle (70) obstruction can not be connected to, and when the top of blood taking needle (70) is only inserted the logical blood vessel slot two in part two (62) position
(64) when interior, blood taking needle (70) is connected to logical blood vessel slot one (63) under this state, in addition, the lower end area of the blood taking needle (70)
It is fixedly installed press disk (71), press disk (71) is circular discoid object, and blood taking needle (70) is in the center of circle of press disk (71)
Place, the bottom end needle point position of blood taking needle (70) are in the lower section of press disk (71), and press disk (71) is under triggering disk (50)
Side, and press disk (71) and trigger disk (50) and be in relatively parallel state, while pressing the outer diameter of disk (71) again smaller than press
The internal diameter of ring (30) is in addition provided with spring (80) above the triggering disk (50), and the outer diameter of spring (80) is less than triggering disk
(50) outer diameter, but its internal diameter is greater than the outer diameter of negative-pressure container (20), and the upper area of spring (80) is nested in negative-pressure container
(20) on, the top of spring (80) is resisted against on the lower end surface of the upper end one (11) of outer tube (10), and bottom end is resisted against touching
It offers on the upper surface of (50), when triggering disk (50) is fixed on latch (44) position of spacing block set (43), at spring (80)
In squeezed state, has elasticity and store power, in addition, negative-pressure container (20) is internally provided with piston plate (90), piston plate (90)
Outer diameter be equal to the internal diameter of negative-pressure container (20) inner cylindrical cavity, the collar wall of piston plate (90) is tightly attached to negative-pressure container
(20) on inner wall and piston plate (90) can be moved up and down along negative-pressure container (20) inner cylindrical cavity, piston plate (90)
Collar wall be made of rubber material, sealing state, negative pressure can be reached with the inner wall contact site of negative-pressure container (20)
Vacuumize process or Negative pressure, piston plate are used inside container (20) in the lower cavity (24) below piston plate (90)
(90) upper surface is fixedly installed vertically arranged piston rod (91), is available for what piston rod (91) passed through on top cover (21)
Hole, piston rod (91) a part pass through top cover (21) and are in the tops of top cover (21), the top of piston rod (91) be provided with by
Platen (92), in addition the two sides of the piston rod (91) are provided with symmetrically arranged limited block (93), the limited block (93) with
Spacing between piston plate (90) is greater than the thickness of top cover (21), and is arranged on top cover (21) in the two sides of opposing pistons bar (91)
There are openings (25) corresponding with limited block (93).
2. disposable micro negative pressure hemospast according to claim 1, it is characterised in that: the lateral wall packet of rubber bodies (60)
It is wrapped with metal valve jacket (65).
3. disposable micro negative pressure hemospast according to claim 2, it is characterised in that: the upper end of press disk (71)
It is fixedly installed on face vertical anti-drop rod (72), corresponding position is provided with perforation hole (52), institute on the triggering disk (50)
State anti-drop rod (72) top pass through it is corresponding perforation hole (52) and anti-drop rod (72) top end triggering disk (50) on
More than end face, the strip (73) being laterally arranged is provided on the top of anti-drop rod (72), the length of strip (73) is greater than through hole
The internal diameter in hole (52).
4. disposable micro negative pressure hemospast according to claim 2, it is characterised in that: the outer diameter of press disk (71)
Equal to or more than the outer diameter of triggering disk (50).
5. disposable micro negative pressure hemospast according to claim 2, it is characterised in that: the top of the negative-pressure container (20)
The upper surface of lid (21) is provided with dent (26) corresponding with limited block (93), the piston in the two sides of opposing pistons bar (91)
The bottom of limited block (93) is trapped in dent (26) when the limited block (93) of bar (91) two sides is adjusted to certain position.
6. disposable micro negative pressure hemospast according to claim 2, it is characterised in that: the blood taking needle (70) is in top
The length of platen (71) section below is less than the length of logical blood vessel slot two (64).
7. disposable micro negative pressure hemospast according to claim 2, it is characterised in that: the upper end of triggering disk (50)
It is arranged at edge (53) using cambered surface chamfering.
8. disposable micro negative pressure hemospast described in any one of -7 according to claim 1, it is characterised in that: the outer sleeve
(10) bottom is provided with the protective cap (13) that can be dismantled, and there are back cover, the internal shapes of protective cap (13) for protective cap (13) bottom
At height be greater than press ring (30) stretch out outer sleeve (10) maximum distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163814.1A CN109316193B (en) | 2018-10-02 | 2018-10-02 | Disposable micro negative pressure blood sampling and taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163814.1A CN109316193B (en) | 2018-10-02 | 2018-10-02 | Disposable micro negative pressure blood sampling and taking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109316193A true CN109316193A (en) | 2019-02-12 |
| CN109316193B CN109316193B (en) | 2021-07-16 |
Family
ID=65265511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811163814.1A Active CN109316193B (en) | 2018-10-02 | 2018-10-02 | Disposable micro negative pressure blood sampling and taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109316193B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924242A (en) * | 2019-04-17 | 2019-06-25 | 山东省农业科学院农产品研究所 | The poly- blood device that one breeding ass is butchered |
| CN112806993A (en) * | 2021-01-11 | 2021-05-18 | 德阳市人民医院 | Blood sampling test tube subassembly |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181523A (en) * | 1990-01-16 | 1993-01-26 | Dieter Wendelborn | Blood sampling device with blood-viewing chamber |
| CN2363658Y (en) * | 1999-04-22 | 2000-02-16 | 浦茂钦 | Automatic vacuum hemostix |
| US20060116705A1 (en) * | 2004-11-30 | 2006-06-01 | Stat Medical Devices, Inc. | Disposable or single-use lancet device and method |
| CN201394021Y (en) * | 2009-03-04 | 2010-02-03 | 柳新荣 | Disposable automatic blood sampling device |
| CN202154686U (en) * | 2011-07-01 | 2012-03-07 | 江苏康宝医疗器械有限公司 | Disposable safe hypodynia blood taking needle |
| CN103163111A (en) * | 2013-02-25 | 2013-06-19 | 天津大学 | Early stage cervical carcinoma detection system integrating fluorescent mesoscope imaging and optical coherence tomography (OCT) |
| CN203169192U (en) * | 2013-01-24 | 2013-09-04 | 孙淑玲 | Blood-taking needle with hemostasis function |
| CN203634179U (en) * | 2014-01-15 | 2014-06-11 | 刘彦霞 | Disposable blood lancet |
| CN104434139A (en) * | 2014-12-19 | 2015-03-25 | 诸葛宝忠 | Multifunctional intelligent blood sampling system for testing department |
| CN204931690U (en) * | 2015-09-09 | 2016-01-06 | 山东五洲医疗器械有限公司 | Single use tip safe blood-taking needle |
| WO2016055912A1 (en) * | 2014-10-07 | 2016-04-14 | Gunnar Magnusson | Dispensing device and method of use for dispensing a defined volume of a liquid |
| CN107041756A (en) * | 2017-05-03 | 2017-08-15 | 柴广云 | A kind of novel blood sampling equipment |
| CN206729899U (en) * | 2017-01-05 | 2017-12-12 | 江西富尔康实业集团有限公司 | A kind of disposal vacuum blood taking needle |
| CN108403127A (en) * | 2017-02-09 | 2018-08-17 | 皮尧 | A kind of bloodletting needle |
-
2018
- 2018-10-02 CN CN201811163814.1A patent/CN109316193B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181523A (en) * | 1990-01-16 | 1993-01-26 | Dieter Wendelborn | Blood sampling device with blood-viewing chamber |
| CN2363658Y (en) * | 1999-04-22 | 2000-02-16 | 浦茂钦 | Automatic vacuum hemostix |
| US20060116705A1 (en) * | 2004-11-30 | 2006-06-01 | Stat Medical Devices, Inc. | Disposable or single-use lancet device and method |
| CN201394021Y (en) * | 2009-03-04 | 2010-02-03 | 柳新荣 | Disposable automatic blood sampling device |
| CN202154686U (en) * | 2011-07-01 | 2012-03-07 | 江苏康宝医疗器械有限公司 | Disposable safe hypodynia blood taking needle |
| CN203169192U (en) * | 2013-01-24 | 2013-09-04 | 孙淑玲 | Blood-taking needle with hemostasis function |
| CN103163111A (en) * | 2013-02-25 | 2013-06-19 | 天津大学 | Early stage cervical carcinoma detection system integrating fluorescent mesoscope imaging and optical coherence tomography (OCT) |
| CN203634179U (en) * | 2014-01-15 | 2014-06-11 | 刘彦霞 | Disposable blood lancet |
| WO2016055912A1 (en) * | 2014-10-07 | 2016-04-14 | Gunnar Magnusson | Dispensing device and method of use for dispensing a defined volume of a liquid |
| CN104434139A (en) * | 2014-12-19 | 2015-03-25 | 诸葛宝忠 | Multifunctional intelligent blood sampling system for testing department |
| CN204931690U (en) * | 2015-09-09 | 2016-01-06 | 山东五洲医疗器械有限公司 | Single use tip safe blood-taking needle |
| CN206729899U (en) * | 2017-01-05 | 2017-12-12 | 江西富尔康实业集团有限公司 | A kind of disposal vacuum blood taking needle |
| CN108403127A (en) * | 2017-02-09 | 2018-08-17 | 皮尧 | A kind of bloodletting needle |
| CN107041756A (en) * | 2017-05-03 | 2017-08-15 | 柴广云 | A kind of novel blood sampling equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924242A (en) * | 2019-04-17 | 2019-06-25 | 山东省农业科学院农产品研究所 | The poly- blood device that one breeding ass is butchered |
| CN112806993A (en) * | 2021-01-11 | 2021-05-18 | 德阳市人民医院 | Blood sampling test tube subassembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109316193B (en) | 2021-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0299981B1 (en) | Lavage device for obtaining a fluid specimen | |
| US5000193A (en) | Medical swab device | |
| US3785367A (en) | Arterial blood sampler | |
| CN101031414B (en) | Biological specimen collection, transportation, and dispensing system | |
| US3438366A (en) | Specimen collector | |
| JPH0221824B2 (en) | ||
| CN109316193A (en) | Disposable micro negative pressure hemostix hemospast | |
| MX2007003449A (en) | Sampler. | |
| US4245655A (en) | Blood collection device | |
| CN205514623U (en) | Fingertip safety hemostix | |
| CN207336115U (en) | A kind of dual-purpose sampler of solid-liquid food | |
| CN211355602U (en) | Saliva collection device | |
| JP4609252B2 (en) | Sample collection liquid container | |
| CN216738315U (en) | Pipette for culture bottle | |
| CN214907279U (en) | Saliva collector | |
| CN102565315A (en) | Anti-leakage reagent bottle special for aids testing | |
| CN1460449A (en) | Automatic quantitative blood-taking pen | |
| CN210834919U (en) | Blood glucose monitoring device | |
| KR102404482B1 (en) | Vacuum blood-gethering apparatus checkable for blood-gathering easily | |
| CN211043407U (en) | IVD colloidal gold detection device | |
| JPS59149152A (en) | Blood sampler | |
| CN215975754U (en) | Extraction element for umbilical cord stem cell | |
| CN218899521U (en) | Urine sampling device convenient to operation | |
| CN207604964U (en) | A kind of pathology department's sample harvester | |
| CN216234016U (en) | Disposable HPV sampling box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210618 Address after: 519000 1st floor, building D, No.3, Pingxi 7th Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province Applicant after: Zhuhai kanglilai Medical Instrument Co.,Ltd. Address before: 226500 Rugao people's Hospital, 278 Ninghai Road, Rugao City, Nantong City, Jiangsu Province Applicant before: Wang Jianmei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |