CN109498034A - The disposable anti-aculeus blood-taking device of retraction type - Google Patents
The disposable anti-aculeus blood-taking device of retraction type Download PDFInfo
- Publication number
- CN109498034A CN109498034A CN201811432000.3A CN201811432000A CN109498034A CN 109498034 A CN109498034 A CN 109498034A CN 201811432000 A CN201811432000 A CN 201811432000A CN 109498034 A CN109498034 A CN 109498034A
- Authority
- CN
- China
- Prior art keywords
- blood
- elastic
- point
- safety sleeve
- outside
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—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
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
Abstract
The invention discloses the anti-aculeus blood-taking devices of disposable retraction type, including blood taking needle and safety sleeve, installation one and the matched elastic limited part of safety sleeve in the safety sleeve, an elastic salient point is arranged in the outside of the elastic limited part, and two through-holes up and down are provided on the position to match on condom barrel with elastic salient point: being followed successively by triggering mouth and safe mouth from top to bottom；The needle stand of the blood taking needle and elastic limited part are relatively fixed；Compressed spring is provided between the upper end and safety sleeve of elastic limited part；The pressure handle that an end has pressure point is provided on the outside of the triggering mouth, pressure point is corresponding with triggering mouth；An anti-touching eaves is additionally provided on the outside of the triggering mouth and pressure point；The inside of anti-touching eaves is provided with tie point with position mutually close on the outside of pressure handle.The present invention is prevented by the design of anti-touching eaves and tie point because making elastic salient point be pressed into safety sleeve, blood taking needle surprisingly bounces back when external force surprisingly squeezes pressure handle.
Description
Technical field
The present invention relates to a kind of hemostix, specially a kind of anti-aculeus blood-taking device of disposable retraction type belongs to medical treatment
Equipment technology field.
Background technique
In clinical position, it is random, uncontrollable for injecting relevant needle and stabbing, and nursing staff is that needle thorn occurs
The high risk group of wound.After unsafe injection includes needlestick injuries after other people and injection tool use to the harm of society
Manage it is improper cause infection socially spread.Standard precautions were proposed by the Center for Disease Control nineteen ninety-five, 1996 Nian Quan
Beauty is implemented, and China is introduced into and was incorporated into " hospital infection management specification (tentative) " that the Ministry of Public Health issues in 2000 for 1999.Mark
Quasi- prevention viewpoint thinks: blood, body fluid, excreta, the secretion of all patients all has infectiousness, whether has apparent
Bloodstain pollutes or whether contacts the skin and mucosa of incomplete property, is both needed to be isolated.Therefore, a large amount of uses of disposable blood taking needle
The safe disposal problem of disposable blood taking needle will be brought.
Safe blood-taking needle usually used at present, vacuum blood collector is by vacuum blood collection tube, blood taking needle, connecting tube and needle holder
Several part compositions.Vacuum blood collection tube is its chief component, is mainly used for the acquisition and preservation of blood preparation.Vacuum blood collection
Pipe is prefixed a certain amount of negative pressure in process of production, after pin puncture of taking a blood sample enters blood vessel, since the negative pressure in heparin tube is made
With blood automatically flows into heparin tube.In order to guarantee that the blood taking needle after use does not stab medical worker, hemostix is used back
The design of contracting formula.Such as Chinese patent: a kind of retraction type vein blood taking needle disclosed in CN205924040U, including syringe, it is located at syringe
Interior piston cylinder and the push-pull rod for being connected to piston cylinder outer end, push-pull rod with the hollow pipeline being connected is equipped in piston cylinder,
Piston cylinder is fixedly arranged at the front end with puncture needle, and the tail portion of puncture needle is connected with negative pressure hemostix hose, and negative pressure hemostix hose passes through piston
Hollow pipeline and extraction in cylinder and push-pull rod, syringe is interior equipped with the buckle structure only locked to piston cylinder, complete in puncture needle
After the completion of taking blood at vascular puncture, piston cylinder is pulled back by push-pull rod so that puncture needle is hidden in syringe completely, locked at this time
Buckle structure only locks piston cylinder, and puncture needle can be prevented exposed.For another example: a kind of disposable retraction peace of CN202636953U
Whole blood sampling needle is cased with the puncture needle of a gum cover including a needle holder, one, one is arranged in core bar and a blood taking needle in a housing,
It is characterized in that the core bar includes the Paracentesis needle holder being combined into one and a blood sampling needle stand, the puncture needle and described hold
Needle device is each attached to the upper end of the Paracentesis needle holder, and the needle holder covers the puncture needle；The outer wall of the blood sampling needle stand
It is equipped with a circle card slot, card sets a piston between the card slot and the housing, by between the piston and the housing
Relative movement drive the core bar and the housing to relatively move；The blood taking needle is fixed on the lower end of the blood sampling needle stand,
And a sheath is arranged on the outside of the blood taking needle.The present invention disposable retraction safety blood sampling needle is it is possible to prevente effectively from adopt
Blood needlestick injury accident, greatly reduces the medical-risk of blood taking needle.For another example the disposable safety retraction of CN105193429A is adopted
Blood device, including blood taking needle and safety sleeve, installation one and the matched extensible member of safety sleeve, described in the safety sleeve
One elastic salient point is set on the outside of extensible member, and extensible member is connect and relatively fixed with blood taking needle, and Aculeata of taking a blood sample is connect with conduit；Institute
It states between at the top of extensible member and the inner wall of safety sleeve and is provided with compressed spring；The safety sleeve is by two or more
Cartridge unit is composed, and is sleeved and fixed between two cartridge units；Close to the position of upper and lower end face on safety sleeve side wall
It is respectively arranged with and the matched opening of the elastic salient point of extensible member: triggering mouth and safe mouth；It is to trigger mouth on the outside of safety sleeve
A resilient contact is arranged in corresponding position；Distance at the top of the safe mouth to safety sleeve is greater than the length of blood taking needle.This
Invention advantage has: blood taking needle can be prevented to be detached from sleeve；Extensible member cannot rotate in safety sleeve, improve stability；It is convenient for
Extensible member is installed.
Although these security settings reduce the risk of blood taking needle to a certain extent, but still there are many defects: 1,
So that pressure point is oppressed elastic salient point by external force, makes to resiliently enter sleeve, so that blood taking needle is brought into the design of sleeve by spring,
Not accounting for the extruding in transportational process will cause retraction；2, the intensity of spring retraction is excessive, may result in resilient contact
Do not stop in safe buckle, but is popped up from the bottom end of sleeve；3, structure is complicated, needs manually to push.
Summary of the invention
The purpose of the invention is to the anti-aculeus blood-taking devices of disposable retraction type, are asked with solving the above-mentioned of the prior art
Topic.
The purpose of the present invention is achieved through the following technical solutions.
The disposable anti-aculeus blood-taking device of retraction type, including blood taking needle and safety sleeve are pacified in the safety sleeve
One and the matched elastic limited part of safety sleeve are filled, an elastic salient point is arranged in the outside of the elastic limited part, in condom
It is provided with two through-holes up and down on the position to match on barrel with elastic salient point: being followed successively by triggering mouth and safety from top to bottom
Mouthful；The needle stand of the blood taking needle and elastic limited part are relatively fixed；It is arranged between the upper end and safety sleeve of elastic limited part
There is compressed spring；The pressure handle that an end has pressure point is provided on the outside of the triggering mouth, pressure point is corresponding with triggering mouth；Described
An anti-touching eaves is additionally provided on the outside of triggering mouth and pressure point；The inside of anti-touching eaves is provided with company with position mutually close on the outside of pressure handle
Contact.When surprisingly squeezing pressure handle by connecting point protection external force, pressure point will not oppress elastic salient point, and elastic salient point is made to be pressed into peace
A full set of cylinder, blood taking needle surprisingly bounce back.
Distance at the top of the safe mouth to safety sleeve is greater than the length of blood taking needle.
The safety sleeve is ellipse, when preventing elastic limited part and blood taking needle from sliding in safety sleeve
Rotation, and cause elastic salient point corresponding with triggering mouth and safe mouth position.
The elastic limited part be it is U-shaped, be fixed with blood taking needle in the vertical arm of one of them, the outside setting of another vertical arm
Flexible salient point.
The middle position of the safety sleeve is provided with squeezing handle, to facilitate medical staff to operate.
Matched safety head is provided with outside the blood taking needle 10.
Settable reinforcing rib in the safety sleeve, to increase the intensity of safety sleeve.
The longitudinal section of the inner wall of the safety sleeve be inverted trapezoidal, it is such design so that retraction when, elastic salient point
Reduced with the frictional force of the inner wall of safety sleeve, thinner compressed spring can be chosen in this way, reduce cost, and improve reliability and
Precision.
The bottom end of the safety sleeve is provided with step, prevents blood taking needle from exiting safety sleeve.
The invention has the following advantages: 1, by it is anti-touching eaves and tie point design, prevent because external force surprisingly squeeze
When pressing pressure handle, elastic salient point is set to be pressed into safety sleeve, blood taking needle surprisingly bounces back.2, the special designing of safety sleeve inner sidewall can
To reduce production cost, improve reliability and precision.3, ellipse is set by safety sleeve, so that extensible member is in condom
It cannot be rotated in cylinder, can both realize that the position of elastic salient point, triggering mouth and safe mouth is corresponding；Limiting component can be reduced again, mentioned
High stability.4, the step design of safety sleeve bottom end, so that the relatively reliable safety of product.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；(spring is omitted in figure)
In figure, 10, blood taking needle；20, elastic limited part；21, elastic salient point；30, safety sleeve；31, mouth is triggered；32, pacify
Full mouth；33, pressure handle；34, pressure point；35, anti-touching eaves；36, tie point.
Specific embodiment
With reference to the accompanying drawing with the specific embodiment design feature that the present invention is further explained.
The anti-aculeus blood-taking device of disposable retraction type as shown in Figure 1, including blood taking needle 10 and safety sleeve 30, it is described
Safety sleeve 30 in installation one and the matched elastic limited part 20 of safety sleeve 30, the outside of the elastic limited part 20 is set
An elastic salient point 21 is set, two through-holes up and down are provided on the position to match on 30 wall of safety sleeve with elastic salient point 21:
It is followed successively by triggering mouth 31 and safe mouth 32 from top to bottom；The needle stand of the blood taking needle 10 and elastic limited part 20 are relatively fixed；
Compressed spring is provided between the upper end and safety sleeve 30 of elastic limited part 20；An end is provided on the outside of the triggering mouth 31
Portion has the pressure handle 33 of pressure point, and pressure point 34 is corresponding with triggering mouth 31；One is additionally provided on the outside of the triggering mouth 31 and pressure point 34
A anti-touching eaves 35；The inside of anti-touching eaves 35 position mutually close with 33 outside of pressure handle is provided with tie point 36.Pass through tie point 36
When protection external force surprisingly squeezes pressure handle, pressure point 34 will not oppress elastic salient point 21, so that elastic salient point 21 is pressed into safety sleeve, adopt
The unexpected retraction of blood needle 10.
The distance at the safe mouth 32 to 30 top of safety sleeve is greater than the length of blood taking needle 10.
The safety sleeve 30 is ellipse, to prevent elastic limited part 20 and blood taking needle from sliding in safety sleeve 30
When rotate, and cause elastic salient point 21 cannot with triggering mouth 31 and 32 position of safe mouth it is corresponding.
The elastic limited part 20 be it is U-shaped, blood taking needle is fixed in the vertical arm of one of them, is set on the outside of another vertical arm
It is equipped with elastic salient point 21.
The middle position of the safety sleeve 30 is provided with squeezing handle, to facilitate medical staff to operate.
Settable reinforcing rib in the safety sleeve 30, to increase the intensity of safety sleeve.
The longitudinal section of the inner wall of the safety sleeve 30 is inverted trapezoidal, so that in retraction, elasticity is convex for such design
Point 21 and the frictional force of the inner wall of safety sleeve 30 are reduced, and can choose thinner compressed spring in this way, reduce cost, and improving can
By property and precision.
The bottom end of the safety sleeve 30 is provided with step, prevents blood taking needle from exiting safety sleeve 30.
Matched safety head is provided with outside the blood taking needle 10.
In use, safety head is removed, take a blood sample；After the completion of blood sampling, pressure handle 33 is firmly pressed；Until tie point 36 is broken,
Pressure point 34 is close to elastic salient point 21 and oppresses elastic salient point 21, and elastic salient point 21 is pressed into safety sleeve 30, in compression bullet
Under the action of spring, elastic limited part 20 and blood taking needle 10 bounce back, until elastic salient point 21 arrives at safe mouth 32, to realize safety
Retraction, avoids medical injury.
Claims (8)
1. the disposable anti-aculeus blood-taking device of retraction type, including blood taking needle and safety sleeve, it is characterised in that: the safety
An elastic salient point is arranged with the matched elastic limited part of safety sleeve, the outside of the elastic limited part in installation one in sleeve,
It is provided with two through-holes up and down on the position to match on condom barrel with elastic salient point: being followed successively by triggering mouth from top to bottom
With safety mouth；The needle stand of the blood taking needle and elastic limited part are relatively fixed；The upper end of elastic limited part and safety sleeve it
Between be provided with compressed spring；The pressure handle that an end has pressure point is provided on the outside of the triggering mouth, pressure point is corresponding with triggering mouth；
An anti-touching eaves is additionally provided on the outside of the triggering mouth and pressure point；The inside of anti-touching eaves is set with position mutually close on the outside of pressure handle
It is equipped with tie point.When surprisingly squeezing pressure handle by connecting point protection external force, pressure point will not oppress elastic salient point, make elastic salient point quilt
It is pressed into safety sleeve, blood taking needle surprisingly bounces back.
2. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the safe mouth
Distance at the top of to safety sleeve is greater than the length of blood taking needle.
3. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the condom
Cylinder is ellipse.
4. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the elasticity limit
Product be it is U-shaped, blood taking needle is fixed in the vertical arm of one of them, is provided with elastic salient point on the outside of another vertical arm.
5. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the condom
The middle position of cylinder is provided with squeezing handle.
6. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the blood taking needle
It is provided with matched safety head outside.
7. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the condom
Settable reinforcing rib on cylinder.
8. the anti-aculeus blood-taking device of disposable retraction type according to claim 1, it is characterised in that: the condom
The longitudinal section of the inner wall of cylinder is inverted trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432000.3A CN109498034A (en) | 2018-11-28 | 2018-11-28 | The disposable anti-aculeus blood-taking device of retraction type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432000.3A CN109498034A (en) | 2018-11-28 | 2018-11-28 | The disposable anti-aculeus blood-taking device of retraction type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109498034A true CN109498034A (en) | 2019-03-22 |
Family
ID=65750918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811432000.3A Pending CN109498034A (en) | 2018-11-28 | 2018-11-28 | The disposable anti-aculeus blood-taking device of retraction type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109498034A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938746A (en) * | 2019-03-29 | 2019-06-28 | 西安医学院 | A kind of high security puncture needle |
| CN110680347A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Push type safety protection mechanism of blood taking needle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0588503U (en) * | 1992-05-07 | 1993-12-03 | テルモ株式会社 | Puncture device for blood sampling |
| CN1964667A (en) * | 2004-05-05 | 2007-05-16 | 贝克顿·迪金森公司 | Squeeze-activated medical puncturing device |
| CN101152589A (en) * | 2006-09-28 | 2008-04-02 | 明辰股份有限公司 | Safe medicament injection apparatus for medical treatment and push bar assembly for medicament injection for medical treatment |
| CN201481935U (en) * | 2009-08-15 | 2010-05-26 | 徐昊华 | Disposable safety injection syringe with automatic retractable and replaceable needle head |
| CN201879751U (en) * | 2010-11-26 | 2011-06-29 | 冯威健 | Needle holder |
| CN104720828A (en) * | 2015-04-01 | 2015-06-24 | 张亚平 | Safety type vein puncture needle |
| CN105193429A (en) * | 2015-09-25 | 2015-12-30 | 邹小龙 | Disposable safety retraction hemostix |
| CN209712929U (en) * | 2018-11-28 | 2019-12-03 | 上海宝舜医疗器械有限公司 | The disposable anti-aculeus blood-taking device of retraction type |
-
2018
- 2018-11-28 CN CN201811432000.3A patent/CN109498034A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0588503U (en) * | 1992-05-07 | 1993-12-03 | テルモ株式会社 | Puncture device for blood sampling |
| CN1964667A (en) * | 2004-05-05 | 2007-05-16 | 贝克顿·迪金森公司 | Squeeze-activated medical puncturing device |
| CN101152589A (en) * | 2006-09-28 | 2008-04-02 | 明辰股份有限公司 | Safe medicament injection apparatus for medical treatment and push bar assembly for medicament injection for medical treatment |
| CN201481935U (en) * | 2009-08-15 | 2010-05-26 | 徐昊华 | Disposable safety injection syringe with automatic retractable and replaceable needle head |
| CN201879751U (en) * | 2010-11-26 | 2011-06-29 | 冯威健 | Needle holder |
| CN104720828A (en) * | 2015-04-01 | 2015-06-24 | 张亚平 | Safety type vein puncture needle |
| CN105193429A (en) * | 2015-09-25 | 2015-12-30 | 邹小龙 | Disposable safety retraction hemostix |
| CN209712929U (en) * | 2018-11-28 | 2019-12-03 | 上海宝舜医疗器械有限公司 | The disposable anti-aculeus blood-taking device of retraction type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938746A (en) * | 2019-03-29 | 2019-06-28 | 西安医学院 | A kind of high security puncture needle |
| CN110680347A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Push type safety protection mechanism of blood taking needle |
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