CN108403127A - A kind of bloodletting needle - Google Patents
A kind of bloodletting needle Download PDFInfo
- Publication number
- CN108403127A CN108403127A CN201710072017.1A CN201710072017A CN108403127A CN 108403127 A CN108403127 A CN 108403127A CN 201710072017 A CN201710072017 A CN 201710072017A CN 108403127 A CN108403127 A CN 108403127A
- Authority
- CN
- China
- Prior art keywords
- needle
- blood
- collection tube
- piston
- blood sampling
- 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.)
- Pending
Links
- 239000008280 blood Substances 0.000 claims abstract description 86
- 210000004369 blood Anatomy 0.000 claims abstract description 86
- 238000010241 blood sampling Methods 0.000 claims abstract description 43
- 229920000742 Cotton Polymers 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 abstract description 11
- 241000219146 Gossypium Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of bloodletting needles,Including push rod,Puncture needle,Blood taking needle,Blood sampling syringe,Piston and vacuum blood collection tube,The blood sampling syringe front end is equipped with guide pin pipe,Needle outlet is equipped in guide pin pipe,In the middle part of blood sampling syringe piston baffle ring is connected on inner wall,Piston is equipped in blood sampling syringe on front side of piston baffle ring,Pistons front sides are equipped with needle stand,Needle stand front end connects blood taking needle,A kind of bloodletting needle,Safety and sanitation,Improve the safety used,Realize that blood taking needle front end is pierced by from guide pin pipe,It is pierced into physical examination student's vein blood vessel to be conducive to blood taking needle,It also allows for spike pierces needle tip protection sleeve and rubber pipe cap enters in vacuum blood collection tube,In vacuum blood collection tube under the influence of negative pressure,Blood in student's vein blood vessel is set to flow into vacuum blood collection tube,Complete blood sampling work,Unclamp push handle,Vacuum blood collection tube is automatically disengaged with puncture needle,Blood taking needle is extracted out of student vein blood vessel automatically,Improve the convenience of student's blood sampling operation.
Description
Technical field
The present invention relates to the field of medical instrument technology, specifically a kind of bloodletting needle.
Background technology
In the physical examination of school organization, blood sampling is indispensable detection project, acquires the blood-taking device of blood sample cylinder at present
It is usually grouped as by multi-sections such as blood taking needle, hose, vaccum blood collecting test tubes, in blood collection procedure, blood taking needle is small, takes not side
Just, it easily slips or loses, needle protection of taking a blood sample be easy to cause and stabs, and in blood collection procedure, and blood taking needle is easy by dirt
It contaminates, when leading to safety reduction of taking a blood sample, and taking a blood sample, also learning will be manually by the puncture needle of vaccum blood collecting test tube and the hose other end
Connection, blood collection procedure is cumbersome, and multiple portions are independently arranged, and increases the workload of medical staff, and after the completion of blood sampling, needs
Blood taking needle to be extracted from student's vein blood vessel manually, it is also desirable to the separation of manually implemented puncture needle and vaccum blood collecting test tube,
The efficiency and effect for reducing blood sampling, increase the difficulty of blood sampling.
Invention content
The purpose of the present invention is to provide a kind of bloodletting needles, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of bloodletting needle, including push rod, puncture needle, blood taking needle, blood sampling syringe, piston and vacuum blood collection tube, the blood sampling syringe
For cylindricality glass cylinder, blood sampling syringe front end is equipped with guide pin pipe, is equipped with needle outlet in guide pin pipe, in the needle outlet of guide pin tube end
Equipped with stick is blocked, piston baffle ring is connected on the inner wall of the blood sampling syringe middle part, is equipped with and lives in the blood sampling syringe on front side of piston baffle ring
Plug, pistons front sides are equipped with needle stand, and needle stand front end connects blood taking needle, spring fixed seat is equipped on the outside of needle stand, and spring fixed seat connects
Hairspring is connect, the hairspring other end is fixed on guide pin pipe, and hairspring is set on the outside of blood taking needle, is connected and is worn on rear side of the piston
Pricker, puncture needle outer sheath are equipped with needle tip protection sleeve, and puncture needle is connected to blood taking needle, thick bullet is equipped on the outside of the needle tip protection sleeve
Spring, vacuum blood collection tube front end are equipped with rubber pipe cap, and blood sampling back end of syringe is clamped limiting plate, and limiting plate circle centre position is equipped with screw thread mouth,
Push rod is equipped in screw thread mouth, putting back-end connects push handle.
As a further solution of the present invention：It is set as sterile chamber in blood sampling syringe on front side of the piston baffle ring.
As a further solution of the present invention：Described bulky spring one end is fixed on piston, and the bulky spring other end is fixed on
On vacuum blood collection tube.
As a further solution of the present invention：Heat-preservation cotton is equipped on the outside of the vacuum blood collection tube, heat-preservation cotton sticks on piston
In blood sampling syringe on rear side of baffle ring.
As a further solution of the present invention：The push rod front end is T-type structure and is fastened on vacuum blood collection tube rear end, is pushed away
Bar is rotatablely connected with vacuum blood collection tube.
As a further solution of the present invention：The push rod front end outer side is equipped with external screw thread, external screw thread and screw thread mouth screw thread
Connection.
As a further solution of the present invention：The guide pin pipe, blood taking needle and puncture needle are arranged with blood sampling syringe same
On one axis.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of bloodletting needle, reasonable in design, operation makes
With conveniently, it effectively prevent blood taking needle and puncture needle to be contaminated by the way that sterile chamber and needle tip protection sleeve is arranged, safety and sanitation；And
And be threaded mouth and effectively prevent the push rod axial force in transportational process and move extruding blood sampling syringe, it is pushed away using preceding rotation
Pushrod movement is pushed after bar, improves the safety used；And push rod squeezes hairspring and bulky spring compression in stress successively
Deformation realizes that blood taking needle front end is pierced by from guide pin pipe, is pierced into physical examination student's vein blood vessel to be conducive to blood taking needle, also allows for wearing
Pricker punctures needle tip protection sleeve and rubber pipe cap enters in vacuum blood collection tube, in vacuum blood collection tube under the influence of negative pressure, makes student
Blood flows into vacuum blood collection tube in vein blood vessel, completes blood sampling work, unclamps push handle, vacuum blood collection tube takes off automatically with puncture needle
From blood taking needle is extracted out of student vein blood vessel automatically, improves the convenience of student's blood sampling operation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
In figure：1- push rods, 2- limiting plates, 3- heat-preservation cottons, 4- rubber pipe cap, 5- puncture needles, 6- piston baffle rings, 7- needle stands,
The sterile chamber of 8- blood taking needles, 9-, 10- guide pins pipe, 11- block stick, 12- needle outlets, 13- blood samplings syringe, 14- hairsprings, 15- bullets
Spring fixed seat, 16- pistons, 17- needle tip protection sleeves, 18- bulky springs, 19- vacuum blood collection tubes, 20- screw thread mouths, 21- push handles.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of bloodletting needle, including push rod 1, puncture needle 5, blood taking needle 8, blood taking needle
Cylinder 13, piston 16 and vacuum blood collection tube 19, the blood sampling syringe 13 are cylindricality glass cylinder, and 13 front end of blood sampling syringe is equipped with guide pin
Pipe 10, guide pin pipe 10 is interior to be equipped with needle outlet 12, is equipped in the needle outlet 12 of 10 end of guide pin pipe and blocks stick 11, the blood sampling
Piston baffle ring 6 is connected on 13 middle part inner wall of syringe, and sterile chamber 9, piston are set as in the blood sampling syringe 13 of 6 front side of piston baffle ring
Piston 16 is equipped in the blood sampling syringe 13 of 6 front side of baffle ring, 16 installed in front of piston has needle stand 7,7 front end of needle stand to connect blood taking needle 8,
7 outside of needle stand is equipped with spring fixed seat 15, and spring fixed seat 15 connects hairspring 14, and 14 other end of hairspring is fixed on guide pin pipe
On 10, the hairspring 14 is set in 8 outside of blood taking needle, and under the effect of 14 elastic force of hairspring, piston 16 drives needle stand 7 and blood sampling
Needle 8 moves backward, until the rear side of piston 16 contradicts and blocks stick 11 in piston baffle ring 6, production and be inserted into needle outlet 12, thus without
Bacterium chamber 9 is closed chamber, and extraneous air is effectively prevent to enter in sterile chamber 9, ensures 8 safety of blood taking needle in sterile chamber 9
Health.
16 rear side connecting puncture needle 5 of the piston, 5 outer sheath of puncture needle are equipped with needle tip protection sleeve 17, needle tip protection sleeve 17
Outside air pollution puncture needle 5, puncture needle 5 is prevented to be connected to blood taking needle 8,17 outside of the needle tip protection sleeve is equipped with bulky spring 18,
18 one end of bulky spring is fixed on piston 16, and 18 other end of bulky spring is fixed on vacuum blood collection tube 19, before vacuum blood collection tube 19
End is equipped with rubber pipe cap 4, and 19 outside of vacuum blood collection tube is equipped with heat-preservation cotton 3, and heat-preservation cotton 3 sticks on the blood sampling of 6 rear side of piston baffle ring
In syringe 13,13 rear end of blood sampling syringe is clamped limiting plate 2, and limiting plate 2 is detachable connection, limiting plate 2 with blood sampling syringe 13
Circle centre position is equipped with screw thread mouth 20, and push rod 1 is equipped in screw thread mouth 20, and 1 front end of push rod is T-type structure and is fastened on vacuum blood collection tube 19
Rear end, push rod 1 are rotatablely connected with vacuum blood collection tube 19, and 1 rear end of push rod connects push handle 21, and 1 front end outer side of push rod is equipped with external screw thread,
External screw thread is threadedly coupled with screw thread mouth 20.
The guide pin pipe 10, blood taking needle 8 and puncture needle 5 are arranged on the same axis with blood sampling syringe 13.
The axial compressive force that the bulky spring 18 can bear is more than the axial compressive force that hairspring 14 can bear.
10 length of guide pin pipe is the 1/3 of 8 length of blood taking needle.
The present invention operation principle be：In use, being rotated first by 21 rotating push-rod 1 of push handle, make the outer of 1 front end of push rod
It is threaded into 2 threaded upper ends mouth 20 of limiting plate and is detached with screw thread mouth 20, then pressing push handle 21 makes push rod 1 that vacuum be driven to adopt
Blood vessel 19 travels forward, and 18 extrusion piston 16 of bulky spring drives needle stand 7 and blood taking needle 8 to travel forward, the stress first of hairspring 14
It is compressed, the movement of piston 16 makes to be in barotropic state in sterile chamber 9, and 10 front end of guide pin pipe blocks stick 11 by gas in sterile chamber 9
Pressure influence is popped up from needle outlet 12, and blood taking needle 8 enters needle outlet 12 until 7 front end of needle stand contradicts guide pin pipe 10, realization blood taking needle 8
Front end is pierced by from guide pin pipe 10, and physical examination student's vein blood vessel is pierced into be conducive to blood taking needle 8, and when blood taking needle 8, piercing student is quiet
After arteries and veins blood vessel, continue to press push handle 21, vacuum blood collection tube 19 squeezes 18 compressive deformation of bulky spring, to make 5 lancet of puncture needle
Sharp protective case 17 and rubber pipe cap 4 enter in vacuum blood collection tube 19, are influenced by negative pressure in vacuum blood collection tube 19, student's vein blood vessel
Interior blood enters blood taking needle 8 and then flows into vacuum blood collection tube 19 by puncture needle 5, after the completion of blood sampling, push handle 21 is unclamped, in thick bullet
Under spring 18 and the effect of 14 elastic force of hairspring, vacuum blood collection tube 19 is automatically disengaged with puncture needle 5, meanwhile, piston 16 drives 7 He of needle stand
Blood taking needle 8 restores to initial position, and blood taking needle 8 is extracted out of student vein blood vessel automatically, improves the convenient of student's blood sampling operation
Property.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of bloodletting needle, including push rod, puncture needle, blood taking needle, blood sampling syringe, piston and vacuum blood collection tube, which is characterized in that
The blood sampling syringe is cylindricality glass cylinder, and blood sampling syringe front end is equipped with guide pin pipe, needle outlet, guide pin pipe end are equipped in guide pin pipe
It is equipped in the needle outlet in portion and blocks stick, connect piston baffle ring on inner wall in the middle part of the blood sampling syringe, the blood sampling on front side of piston baffle ring
Piston is equipped in syringe, pistons front sides are equipped with needle stand, and needle stand front end connects blood taking needle, spring fixed seat is equipped on the outside of needle stand,
Spring fixed seat connects hairspring, and the hairspring other end is fixed on guide pin pipe, and hairspring is set on the outside of blood taking needle, the work
Plug rear side connecting puncture needle, puncture needle outer sheath are equipped with needle tip protection sleeve, and puncture needle is connected to blood taking needle, outside the needle tip protection sleeve
Side is equipped with bulky spring, and vacuum blood collection tube front end is equipped with rubber pipe cap, and blood sampling back end of syringe is clamped limiting plate, and limiting plate circle centre position is set
There is screw thread mouth, push rod is equipped in screw thread mouth, putting back-end connects push handle.
2. a kind of bloodletting needle according to claim 1, which is characterized in that set in the blood sampling syringe on front side of the piston baffle ring
It is set to sterile chamber.
3. a kind of bloodletting needle according to claim 1, which is characterized in that described bulky spring one end is fixed on piston, slightly
The spring other end is fixed on vacuum blood collection tube.
4. a kind of bloodletting needle according to claim 1, which is characterized in that heat-preservation cotton is equipped on the outside of the vacuum blood collection tube,
Heat-preservation cotton sticks in the blood sampling syringe on rear side of piston baffle ring.
5. a kind of bloodletting needle according to claim 1, which is characterized in that the push rod front end is T-type structure and is fastened on
Vacuum blood collection tube rear end, push rod are rotatablely connected with vacuum blood collection tube.
6. a kind of bloodletting needle according to claim 1, which is characterized in that the push rod front end outer side is equipped with external screw thread, outside
Screw thread is threadedly coupled with screw thread mouth.
7. a kind of bloodletting needle according to claim 1, which is characterized in that the guide pin pipe, blood taking needle and puncture needle with
Syringe setting take a blood sample on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072017.1A CN108403127A (en) | 2017-02-09 | 2017-02-09 | A kind of bloodletting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072017.1A CN108403127A (en) | 2017-02-09 | 2017-02-09 | A kind of bloodletting needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108403127A true CN108403127A (en) | 2018-08-17 |
Family
ID=63124802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710072017.1A Pending CN108403127A (en) | 2017-02-09 | 2017-02-09 | A kind of bloodletting needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108403127A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316193A (en) * | 2018-10-02 | 2019-02-12 | 王建美 | Disposable micro negative pressure hemostix hemospast |
| CN109938746A (en) * | 2019-03-29 | 2019-06-28 | 西安医学院 | A high-safety puncture needle |
| CN110613463A (en) * | 2019-10-29 | 2019-12-27 | 南京市儿童医院 | Blood sampling device for neonates |
| CN110840465A (en) * | 2019-11-30 | 2020-02-28 | 中国人民解放军陆军军医大学第一附属医院 | A self-retracting lancet |
| CN111337308A (en) * | 2020-04-10 | 2020-06-26 | 华道(上海)生物医药有限公司 | Sterile sampling device and using method thereof |
| CN116135145A (en) * | 2021-11-18 | 2023-05-19 | 王剑飞 | Disposable anti-stab blood collection container for veterinary use and method of use |
-
2017
- 2017-02-09 CN CN201710072017.1A patent/CN108403127A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316193A (en) * | 2018-10-02 | 2019-02-12 | 王建美 | Disposable micro negative pressure hemostix hemospast |
| CN109316193B (en) * | 2018-10-02 | 2021-07-16 | 珠海市康利莱医疗器械有限公司 | Disposable micro negative pressure blood sampling and taking device |
| CN109938746A (en) * | 2019-03-29 | 2019-06-28 | 西安医学院 | A high-safety puncture needle |
| CN110613463A (en) * | 2019-10-29 | 2019-12-27 | 南京市儿童医院 | Blood sampling device for neonates |
| CN110613463B (en) * | 2019-10-29 | 2021-11-30 | 南京市儿童医院 | Blood sampling device for neonates |
| CN110840465A (en) * | 2019-11-30 | 2020-02-28 | 中国人民解放军陆军军医大学第一附属医院 | A self-retracting lancet |
| CN110840465B (en) * | 2019-11-30 | 2022-08-26 | 中国人民解放军陆军军医大学第一附属医院 | Automatic retraction blood taking needle |
| CN111337308A (en) * | 2020-04-10 | 2020-06-26 | 华道(上海)生物医药有限公司 | Sterile sampling device and using method thereof |
| CN116135145A (en) * | 2021-11-18 | 2023-05-19 | 王剑飞 | Disposable anti-stab blood collection container for veterinary use and method of use |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180817 |