CN109567828A - Needleless blood taking needle and its application method - Google Patents
Needleless blood taking needle and its application method Download PDFInfo
- Publication number
- CN109567828A CN109567828A CN201910091173.1A CN201910091173A CN109567828A CN 109567828 A CN109567828 A CN 109567828A CN 201910091173 A CN201910091173 A CN 201910091173A CN 109567828 A CN109567828 A CN 109567828A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- blood
- blood sampling
- sampling portion
- injection port
- 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.)
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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
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- 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
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
-
- 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
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
-
- 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
- A61B5/154—Devices using pre-evacuated means
Abstract
Needleless blood taking needle and its application method, including blood sampling portion, hose and intravenous needle, blood sampling portion has the elastic sealing ring of outer wall, mesospore, inner cavity, the filling head of cylinder and a hollow cylindrical, a hollow cavity and liquid injection port are equipped with inside filling head, liquid injection port is connected with hollow cavity, elastic sealing ring is made of the variant part of top calabash shaped and the sealing ring of lower part, and elastic sealing ring, which is placed in rubber plug position, can seal liquid injection port with rubber plug position tight fit, sealing ring.When use, the blood sampling portion of needleless blood taking needle is screwed in the sealing cover for exempting to puncture vacuum blood collection tube, filling head oppresses the elastic packing rubber plug in sealing cover, the liquid injection port of exposing is gradually connected to left fluid passage and right fluid passage completely, and blood is sucked in heparin tube by negative pressure, needle thorn risk can be greatly reduced in clinical use, and provides more convenient selection for clinical manipulation, and improve the comfort level of patient's medical treatment.
Description
Technical field
The present invention relates to a kind of needleless blood taking needle and its application methods, match with puncture vacuum blood collection tube is exempted from.
Background technique
Clinic blood sampling is instantly very universal medical procedure, is taken a blood sample by clinic and obtains blood sample, is examining for disease
The most basic medical item in disconnected basis and each hospital.Also Just because of this, the medical staff of clinical blood sampling operation is carried out
Also it is faced with greatly risk, daily hundreds of acupuncture manipulation is exposed to medical care operator in needle thorn harm, stab,
The risks such as infection are very high.Blood taking needle especially currently on the market is both ends needle, i.e., patient end needs to carry out a steel needle thorn
Enter operation, blood sampling pipe end also needs to carry out a steel needle and is pierced into operation.International Organization for standardization just formulated in 2011
Anti- needle thorn requires standard (ISO 23908), and China also started successively to be added to the thorn requirement of anti-needle since 2014 various medical
In the relevant criterion of needle.
In addition to this, rubber plug is punctured by steel needle between blood taking needle and heparin tube now on the market and realize blood sampling, after pulling out needle
Then sealing is realized by the elastic force of the rubber plug of heparin tube and the Capsule of blood taking needle, such working principle has certain limitation,
Due to the elastic characteristic of rubber or latex product itself, repeated deformation and reinstatement may be implemented to be applied to manyly
Fang Zuowei obturator, but once destroy its structure and generate physical damnification, it can not be after continuation of insurance if there is lacerated wound, notch etc. also
Its characteristic is held, i.e., the sealing effect that operation will lead to blood taking needle Capsule repeatedly fails；And the sharpness of needle point can also decline,
The malpractices such as blood, puncture failure are leaked more than just there is very big probability will appear after certain number, therefore present blood taking needle product
Can generally express in specification can puncture time.However, in the clinical field such as system physical examination, the serious disease treatment of such as cancer, first aid
Under scape, generally require to adopt multitube blood to be detected respectively, but blood taking needle can repeatedly puncture time it is very limited, be more than time
Number just needs replacing blood taking needle, this also just causes the secondary puncture of patient accordingly, brings unnecessary pain.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of needleless blood taking needle and its application method, pass through bullet
Property sealing ring matched with the internal structure in needleless blood taking needle blood sampling portion to be formed can open and close type sealing structure, with exempt to puncture it is true
When empty heparin tube is used cooperatively, it can be realized screw-in and form access, screw out then access and be closed and seal automatically.
To achieve the above object, used technical solution is the present invention: needleless blood taking needle, including blood sampling portion, hose and
Intravenous needle, it is characterised in that: further include the elastic sealing ring of a hollow cylindrical, blood sampling portion has outer wall, inner cavity, mesospore and circle
Cylindrical filling head, outer wall bottom are equipped with a circle external screw thread at.
Mesospore is located at middle position in blood sampling portion, and filling head is located at mesospore center and extends outwardly, filling head and outer wall
Between be open column shape rubber plug position, inside outer wall wall is equipped with a circle cyclic annular detent outstanding.
It is equipped with a hollow cavity along axis inside filling head, hollow cavity one end perforation mesospore is connected with inner cavity, the other end
It is connected by liquid injection port with rubber plug position.
Elastic sealing ring is made of the variant part of top calabash shaped and the sealing ring of lower part, elastic sealing ring and rubber plug position ruler
Very little phase is agreed with, and elastic sealing ring is placed in rubber plug position can limit elastic sealing ring and not take off with rubber plug position tight fit, cyclic annular detent
Out, the position of sealing ring is corresponding with liquid injection port position, can be sealed against.
The application method of needleless blood taking needle, it is characterised in that: before use, elastic sealing ring is embedded in the rubber plug position in blood sampling portion
It is interior, and by cyclic annular detent clamping with Anti-extrusion, the sealing ring of elastic sealing ring lower part seals up liquid injection port, prevents air from contacting
And leakage blood.
In use, the blood sampling portion of needleless blood taking needle is placed in the annular blind slot for exempting to puncture the sealing cover of vacuum blood collection tube,
Rotating clockwise blood sampling portion makes it be spirally connected with sealing cover, and with going deep into for blood sampling portion, the filling head in blood sampling portion is persistently oppressed close
Elastic packing rubber plug in capping makes its downward compressive deformation, and left fluid passage and right fluid passage are gradually exposed, correspondingly, sealing cover is also pressed
Urgent elastic sealing ring makes variant part that compressive deformation occur, to make the sealing ring position on elastic sealing ring move up, on filling head
Liquid injection port be gradually exposed.
When blood sampling portion rotates to bottom, left fluid passage and right fluid passage are connected to completely with liquid injection port, and the negative pressure in heparin tube passes through
Blood sampling portion sucks blood in heparin tube.
After use, blood sampling portion is screwed out, as blood sampling portion drives filling head to move up, between liquid injection port and left fluid passage and right fluid passage
Access is cut off, and elastic sealing ring restores to the original state and is again sealed off liquid injection port, to prevent blood leakage.
Finally, counterclockwise screw out blood sampling portion, replace other exempt from puncture vacuum blood collection tube re-operated by above-mentioned steps.
The beneficial effects of the present invention are: matching shape with the internal structure in needleless blood taking needle blood sampling portion by elastic sealing ring
At can open and close type sealing structure, needleless blood taking needle with exempt from puncture vacuum blood collection tube be used cooperatively when, can be realized rotation
Then access is closed automatically and is sealed by elastic packing rubber plug when automatically forming access when entering blood sampling portion, and screwing out, such needleless
Blood taking needle does not need to be punctured using steel needle, has fundamentally abandoned existing steel needle formula blood collection needles, this is just solved simultaneously
Two problems: first, medical staff is reduced to that primary (patient end still uses steel needle, adopts from original puncture of steel needles twice
Blood end then uses needleless to connect), so that original needle thorn risk has also decreased half；Second, not against puncture of steel needles, by
In the structure that will not destroy rubber or latex part, the phenomenon that from without seal failure, also just do not puncture accordingly
The limitation of quantity, such needleless blood taking needle and exempts to puncture vacuum blood collection tube even several hundred time with the use of may be implemented tens times
Puncture procedure, for the durable limit far beyond clinical use demand, clinical use is convenient, also reduces the generation of secondary puncture
Rate.Needleless blood taking needle can greatly reduce needle thorn risk in clinical use in summary, and provide more for clinical manipulation
Add convenient selection, and improves the comfort level of patient's medical treatment.
Detailed description of the invention
Fig. 1 is overall diagram of the invention；
Fig. 2 is blood sampling portion bottom view of the invention；
Fig. 3 is the A-A cross-sectional view of Fig. 2 of the present invention；
Fig. 4 is the B-B cross-sectional view of Fig. 2 of the present invention；
Fig. 5 is enlarged drawing at the C of Fig. 4 of the present invention；
Fig. 6 is fluid injection junction enlarged image of the invention；
Fig. 7 is elastic sealing ring outside drawing of the invention；
Fig. 8 is elastic sealing ring top view of the invention；
Fig. 9 is the D-D cross-sectional view of Fig. 8 of the present invention；
Figure 10 is schematic diagram before the use of application method of the present invention；
Schematic diagram when Figure 11 is the use of application method of the present invention；
Figure 12 exempts from puncture sealing cover of vacuum blood tube stereoscopic schematic diagram for of the invention；
Figure 13 is the E-E sectional view of Figure 12 of the present invention；
Figure 14 it is of the invention exempt from puncture sealing cover of vacuum blood tube bottom view.
Specific embodiment
As shown in Figures 1 to 9, needleless blood taking needle, including blood sampling portion 1, hose 2 and intravenous needle 3 further include an open tubular column
The elastic sealing ring 4 of shape, the blood sampling portion 1 have the filling head 1-4 of outer wall 1-1, inner cavity 1-2, mesospore 1-3 and cylinder, outside
The bottom wall 1-1 is equipped with a circle external screw thread at；
Mesospore 1-3 is located at middle position in blood sampling portion 1, and filling head 1-4 is located at the center mesospore 1-3 and extends outwardly, filling head
It is the rubber plug position 1-5 of open column shape between 1-4 and outer wall 1-1, outer wall 1-1 inner sidewall is equipped with a circle cyclic annular detent 1- outstanding
1-1。
Inside filling head 1-4 along axis be equipped with a hollow cavity 1-4-1, the one end hollow cavity 1-4-1 penetrate through mesospore 1-3 with it is interior
Chamber 1-2 is connected, and the other end is connected by liquid injection port 1-4-2 with rubber plug position 1-5.
Elastic sealing ring 4 is made of the variant part 4-1 of top calabash shaped and the sealing ring 4-2 of lower part, elastic sealing ring 4 with
Rubber plug position 1-5 size is mutually agreed with, and elastic sealing ring 4 is placed in the 1-5 of rubber plug position and rubber plug position 1-5 tight fit, cyclic annular detent 1-1-1
Elastic sealing ring 4 can be limited not deviate from, the position of sealing ring 4-2 is corresponding with the position liquid injection port 1-4-2, can be close by its
Envelope.
As shown in FIG. 10 to 14, what is be used cooperatively with the present invention exempts from puncture vacuum blood collection tube 5, including sealing blood sampling tube lid
5-1, heparin tube 5-2 and an elastic packing rubber plug 5-1-2, the bottom sealing blood sampling tube lid 5-1 have groove, heparin tube 5-
2 opening portion sealing bonding or sealing are screwed onto the groove of sealing blood sampling tube lid 5-1, are vacuum state inside heparin tube 5-2.
An annular blind slot 5-1-1, annular blind slot 5-1-1 inner wall are offered from top at the outer sealing blood sampling tube lid 5-1
Equipped with screw thread, a blind hole is offered from top at center, blind pore wall is equipped with symmetrical strip gab I and strip gab
II, bottom portion of groove offers symmetrical semilune blind slot I and semilune blind slot II, and strip gab I and semilune blind slot I communicate structure
At left fluid passage 5-1-3, strip gab II and semilune blind slot II communicate and constitute right fluid passage 5-1-4.
The blind hole opening is equipped with a circle boss, and elastic packing rubber plug 5-1-2 outer dimension is mutually agreed with blind hole, is placed in
With blind hole tight fit in blind hole, boss can limit elastic packing rubber plug 5-1-2 and not deviate from.Elastic packing rubber plug 5-1-2 is equipped with
Sealing and pars contractilis, sealing are cylindrical body, and pars contractilis is calabash shaped, and sealing can be by strip gab I and strip gab
II sealing, to seal up left fluid passage 5-1-3 and right fluid passage 5-1-4.
Before use, the state of needleless blood taking needle part are as follows: the elastic sealing ring 4 of the hollow cylindrical of needleless blood taking needle is embedded in
In blood sampling portion 1, and by cyclic annular detent 1-1-1 clamping with Anti-extrusion, the sealing ring 4-2 of 4 lower part of elastic sealing ring of hollow cylindrical
Liquid injection port 1-4-2 is sealed up, prevents air from contacting and leaking blood；Exempt from the state of puncture vacuum blood collection tube portion 5 are as follows: boss limitation
For elastic packing rubber plug 5-1-2 in blind hole so that it will not arbitrarily deviate from, sealing seals strip gab I and strip gab II
Firmly, gas exchanges inside and outside heparin tube 5-2 are prevented, make to keep vacuum state in heparin tube 5-2.
In use, the blood sampling portion 1 of needleless blood taking needle is placed in the annular blind slot 5-1-1 of sealing blood sampling tube lid 5-1, up time
Needle rotation blood sampling portion 1 is screwed together it with sealing blood sampling tube lid 5-1, the note with going deep into for blood sampling portion 1, in blood sampling portion 1
Liquid head 1-4 persistently oppresses elastic packing rubber plug 5-1-2 in blind hole makes the downward compressive deformation of pars contractilis, and sealing moves down, bar shaped
Opening I and strip gab II are gradually exposed, while sealing blood sampling tube lid 5-1 also oppresses the elastic sealing ring of hollow cylindrical accordingly
4 make the variant part 4-1 of upper part that compressive deformation occur, to make on the position sealing ring 4-2 of the elastic sealing ring 4 of hollow cylindrical
It moves, the liquid injection port 1-4-2 on filling head 1-4 is gradually exposed.
When blood sampling portion 1 rotates to bottom, the liquid injection port 1-4-2 of exposing and the strip gab I of exposing and strip gab II are complete
Full-mesh, and be connected to by semilune blind slot I and semilune blind slot II with heparin tube 5-2, in the suction function of heparin tube 5-2
Under, blood enters left fluid passage 5-1- by intravenous needle, hose, the inner cavity 1-2 in blood sampling portion 1, hollow cavity 1-4-1, liquid injection port 1-4-2
3 and right fluid passage 5-1-4, and finally flow into heparin tube 5-2.
After use, the blood sampling portion 1 of needleless blood taking needle is screwed out counterclockwise, as blood sampling portion 1 drives filling head 1-4 to move up, is adopted
Sealing blood sampling tube lid 5-1 is also gradually left in blood portion 1, and the access between liquid injection port 1-4-2 and strip gab I and strip gab II is cut
It is disconnected, so that it is cut off its access between left fluid passage 5-1-3 and right fluid passage 5-1-4, meanwhile, the change on 4 top of elastic sealing ring
Shape portion 4-1 is also gradually recovered original state, and the sealing ring 4-2 of 4 lower part of elastic sealing ring comes back to the position of liquid injection port 1-4-2 and will
It is sealed, to prevent blood leakage or air from entering inner cavity 1-2, the pars contractilis of elastic packing rubber plug 5-1-2 is also corresponding extensive
Restore shape, sealing comes back to the position of strip gab I and strip gab II and is sealed against, thus prevent blood leakage or
Air enters heparin tube 5-2.
It is re-operated finally, replacing other and exempting from puncture vacuum blood collection tube 5 by above-mentioned steps.
Claims (2)
1. needleless blood taking needle, including blood sampling portion (1), hose (2) and intravenous needle (3), it is characterised in that: further include an open tubular column
The elastic sealing ring (4) of shape, the blood sampling portion (1) have the note of outer wall (1-1), inner cavity (1-2), mesospore (1-3) and cylinder
Liquid head (1-4), the bottom outer wall (1-1) are equipped with a circle external screw thread at；
The mesospore (1-3) is located at blood sampling portion (1) interior middle position, and filling head (1-4) is located at the center mesospore (1-3) and outside
Extend, be the rubber plug position (1-5) of open column shape between filling head (1-4) and outer wall (1-1), outer wall (1-1) inner sidewall is equipped with
One circle cyclic annular detent (1-1-1) outstanding；
The filling head (1-4) is internal to be equipped with a hollow cavity (1-4-1) along axis, and hollow cavity one end (1-4-1) penetrates through mesospore
(1-3) is connected with inner cavity (1-2), and the other end is connected by liquid injection port (1-4-2) with rubber plug position (1-5)；
The elastic sealing ring (4) is made of the variant part (4-1) of top calabash shaped and the sealing ring (4-2) of lower part, and elasticity is close
Seal ring (4) is mutually agreed with rubber plug position (1-5) size, and elastic sealing ring (4) is placed in rubber plug position (1-5) tight with rubber plug position (1-5)
Cooperation, cyclic annular detent (1-1-1) can limit elastic sealing ring (4) and not deviate from, the position of sealing ring (4-2) and liquid injection port (1-
4-2) position is corresponding, can be sealed against.
2. using the application method of needleless blood taking needle described in claim 1, it is characterised in that: before use, elastic sealing ring (4)
It is embedded in the rubber plug position (1-5) in blood sampling portion (1), and by (1-1-1) clamping of cyclic annular detent with Anti-extrusion, elastic sealing ring (4)
The sealing ring (4-2) of lower part seals up liquid injection port (1-4-2), prevents air from contacting and leaking blood；
In use, the blood sampling portion (1) of needleless blood taking needle to be placed in the annular for exempting to puncture the sealing cover (5-1) of vacuum blood collection tube (5)
In blind slot (5-1-1), rotating clockwise blood sampling portion (1) makes it be spirally connected with sealing cover (5-1-1), with going deep into for blood sampling portion (1),
The elastic packing rubber plug (5-1-2) that filling head (1-4) in blood sampling portion (1) is persistently oppressed in sealing cover (5-1) is pressed downward it
Compression deformation, left fluid passage (5-1-3) and right fluid passage (5-1-4) are gradually exposed, correspondingly, sealing cover (5-1) also oppresses elastic packing
Ring (4) makes variant part (4-1) that compressive deformation occurs, so that position sealing ring (4-2) on elastic sealing ring (4) be made to move up, infuses
Liquid injection port (1-4-2) on liquid head (1-4) is gradually exposed；
When blood sampling portion (1) rotates to bottom, left fluid passage (5-1-3) and right fluid passage (5-1-4) connect completely with liquid injection port (1-4-2)
Logical, the negative pressure in heparin tube (5-2) is sucked blood in heparin tube (5-2) by blood sampling portion (1)；
After use, screw out blood sampling portion (1), as blood sampling portion (1) drives filling head (1-4) to move up, liquid injection port (1-4-2) and left liquid
Access between road (5-1-3) and right fluid passage (5-1-4) is cut off, and elastic sealing ring (4) restores to the original state and by liquid injection port (1-4-2)
It is again sealed off, to prevent blood leakage；
Finally, counterclockwise screw out blood sampling portion (1), replace other exempt from puncture vacuum blood collection tube (5) re-operated i.e. by above-mentioned steps
It can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091173.1A CN109567828B (en) | 2019-01-30 | 2019-01-30 | Needleless blood collection needle and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091173.1A CN109567828B (en) | 2019-01-30 | 2019-01-30 | Needleless blood collection needle and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109567828A true CN109567828A (en) | 2019-04-05 |
| CN109567828B CN109567828B (en) | 2023-09-19 |
Family
ID=65918493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910091173.1A Active CN109567828B (en) | 2019-01-30 | 2019-01-30 | Needleless blood collection needle and use method thereof |
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| CN (1) | CN109567828B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450929A (en) * | 2020-12-02 | 2021-03-09 | 彭海 | Hematology medical collection instrument based on wireless signals and using method thereof |
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| JP2002095739A (en) * | 2000-09-22 | 2002-04-02 | Jms Co Ltd | Blood collecting device for blood collecting system of arterial or venous line and blood collecting system of arterial or venous line using the device |
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| CN112450929A (en) * | 2020-12-02 | 2021-03-09 | 彭海 | Hematology medical collection instrument based on wireless signals and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109567828B (en) | 2023-09-19 |
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