CN104138264A - Safe blood taking needle - Google Patents
Safe blood taking needle Download PDFInfo
- Publication number
- CN104138264A CN104138264A CN201410363854.6A CN201410363854A CN104138264A CN 104138264 A CN104138264 A CN 104138264A CN 201410363854 A CN201410363854 A CN 201410363854A CN 104138264 A CN104138264 A CN 104138264A
- Authority
- CN
- China
- Prior art keywords
- needle
- saddle
- syringe needle
- needle stand
- stand
- 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
Abstract
The invention discloses a safe blood taking needle which comprises a needle base, a needle sleeve, a needle head, a sliding part, a handle and limiting mechanisms. The needle base is cylindrical. One end of the needle base is fixed and communicated with the needle head, and the other end of the needle base is provided with a connector connected with an external conveying pipe. The sliding part is shaped like a cylinder with two open ends and movably arranged on the needle base in a sleeved mode. The length, in the moving direction, of the sliding part is larger than the length of the needle head. The length, in the axial direction, of the needle base is larger than the length of the needle head. The limiting mechanisms are arranged on the sliding part and the needle base. The handle is adjacent to the needle base and is fixed to the sliding part. The sliding part is provided with a protecting cover. The sliding part and the protecting cover are fixed. A joint part between the protecting cover and the sliding part is smooth. A spring type needle head is not used, the protecting cover is further arranged for protecting the sliding part and being in smooth joint with the sliding part, and therefore pains of patients are relieved.
Description
Technical field
The present invention relates to a kind of blood taking needle, particularly a kind of safe blood-taking needle.
Background technology
Blood sampling assay technique is quite ripe at present, but also do not reach not the object of reaching a conclusion from blood sampling in patient, or to be completed by blood taking needle and blood taking tube the initial procedure of chemical examination, so blood taking needle is one of medical device product of current global sales maximum.But, it is worth noting, blood collection needles human injury's accident that at present countries in the world hospital causes because of syringe needle fracture or medical personnel's misoperation is annual occurs millions of person-times.The statistical data that American Medical Association announces shows, only the U.S. approximately occurs that 1,000,000 person-times of medical personnel are unexpected is stabbed accident by blood taking needle, the hepatitis B virus, hepatitis C virus and the AIDS viral infection that wherein have at least over thousands of people on syringe needle, to be adhered to every year.At every turn because the rupture medical personnel that stabbed and the emergency treatment expense of patient's generation of blood collection needles is 3000 dollars per capita.
The research and development that company drops into safety blood taking medical device in succession energetically both at home and abroad, safe blood-taking needle is in the market very many, and these safety blood taking equipment have a lot of deficiencies: first production cost is very high; It two is complex manufacturing; Its three be the quality of production be difficult to ensure; It four is medical personnel's complex operations; Its five be security function be difficult to ensure.
At present, conventional disposable blood taking needle before use, need to be to needle guard on pinhead sleeve with protection syringe needle, for example, prevent that syringe needle is bent or collision etc.When use, while pulling out needle guard, easily cause and stab danger, but real danger disposal stage after blood sampling completes, extracting in person of blood collecting's body, in the time carrying out waste disposal, no matter put into professional process cartridge or bring needle guard, the danger of being all easily wounded by stabbing, causes the serious consequences such as medical staff infection.
For this defect, some blood taking needles have adopted the technological means of retractable needle, after blood sampling completes, utilize the isostructural elastic force of spring, syringe needle are retracted in the structures such as a protective sleeve for the protection of syringe needle.So, although can effectively protect syringe needle, avoid medical worker to be wounded by stabbing, but can cause patient painful greatly because of the mechanical action of needle retractable.
In addition, blood taking needle, in the time operating, often needs to be affixed with skin, and existing blood taking needle is in the time of action, often non-level and smooth between the parts of blood taking needle and parts, or has crack.So, likely cause patient's skin to be clamped by crack or the adverse consequences such as adhesion, increased the weight of patient's misery.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the defect that prior art safety is lower, easily aggravate patient suffering, the blood taking needle that a kind of safety is higher, patient suffering is less to be provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of safe blood-taking needle, it includes a needle stand, a needle guard and a syringe needle, described needle guard is sheathed on described syringe needle, its feature is, described safe blood-taking needle also includes a saddle, leader and a position-limit mechanism, described needle stand is tubular, and one end of described needle stand is fixed and is communicated with described syringe needle, and the other end offers the interface being connected with a carrier pipe of outside;
Described saddle is the tubular of both ends open and movable being sheathed on described needle stand, and the length of described saddle on activity direction is greater than the length of described syringe needle;
The axial length of described needle stand is greater than the length of described syringe needle;
Described position-limit mechanism is arranged at described saddle and described needle stand, for sliding into and cover completely after described syringe needle at described saddle, described saddle is fixed on described needle stand;
Described handle fixes near described needle stand and with described saddle;
On described saddle, be provided with an over cap for the protection of described position-limit mechanism;
Described saddle and described over cap fix, and the junction surface between described over cap and described saddle is level and smooth.
That is to say, blood taking needle of the present invention, needle stand will be longer than syringe needle, and so, the saddle of above-mentioned tubular just can slidably reciprocate on needle stand, makes syringe needle covered and completely expose between two states and switch by saddle.Position-limit mechanism moves for limiting saddle.
Position-limit mechanism on saddle, is therefore provided with over cap and protects the position-limit mechanism on saddle because external impact produces maloperation due to likely on saddle.In addition, owing to considering the contact of patient skin, the junction surface between over cap and saddle is set to level and smooth.
When use, under original state, saddle is fixed in needle stand by position-limit mechanism, and (being the state that syringe needle exposes completely), first takes out needle guard, takes a blood sample; After having taken a blood sample, remove fixing of saddle and needle stand, saddle is slided to saddle and covers syringe needle completely to syringe needle direction, now saddle is fixed in again on needle stand and (passes through position-limit mechanism).So,, owing to not needing again needle guard to be put on and can be covered syringe needle, safety promotes greatly.
In addition, fixed handle on needle stand can grasp handle on the one hand in the time of operation, on the other hand, handle, near living needle stand, makes only to need a thumb to push down handle and saddle carries out movable operation simultaneously, makes to operate relatively existing blood taking needle also more convenient.
Preferably, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
It is upper away from the interior week of one end of described syringe needle that described the first elastic washer is attached at described saddle, and, the laminating that the edge of described the first elastic washer and the inwall of described saddle are level and smooth;
Two described the second elastic washer cover merging are attached on described needle stand, when described the second elastic washer covers described syringe needle or described syringe needle completely and exposes completely for sliding at described saddle, fasten with described the first elastic washer, to limit the movement of described saddle.
That is to say, slide into when covering syringe needle or described syringe needle and exposing completely toward syringe needle direction at saddle, for saddle and needle stand are fixed, what fasten as the first elastic washer on week in the second elastic washer in the needle stand periphery of position-limit mechanism and saddle is fixing.Because the inwall of the first elastic washer and saddle is level and smooth laminating, extruding that therefore can be comparatively level and smooth is advanced into the position engaging with the second elastic washer.
Preferably, described position-limit mechanism comprises a spring secures rail to sleeper and two draw-in grooves;
Described two draw-in grooves are arranged on described needle stand, described spring secures rail to sleeper is arranged on described saddle, when described two draw-in grooves and described spring secures rail to sleeper cover syringe needle or syringe needle completely and expose completely for sliding at described saddle, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
That is to say, saddle slides axially along needle stand, and need to take a blood sample time, on the spring secures rail to sleeper on saddle and needle stand, the draw-in groove of one end of close needle stand fastens, and syringe needle exposes completely.After having taken a blood sample, when syringe needle need to be covered, saddle is slid into spring secures rail to sleeper and engage with the draw-in groove of the other end on needle stand, to cover syringe needle.In addition, said spring secures rail to sleeper herein, maintains the fastener of snap-fit relationship with elastic force in the prior art referring to, can engagement release relation as long as apply an external force that is greater than elastic force.
Preferably, on described saddle, be provided with at least one skid-proof regions.
Herein, the setting of skid-proof regions is in order to allow finger have larger frictional force in the time promoting saddle, for example, can or be that waveform/hole flute profile is to increase the contact area of finger to saddle by a certain region division on saddle at the large elastomeric material of saddle outer wrapping coefficient of friction.
Preferably, described saddle is made up of elastomeric material, and described saddle and described spring secures rail to sleeper are one-body molded, and described needle stand and described draw-in groove are one-body molded, is provided with some vacancy sections on described saddle.
Vacancy section is set is herein on the one hand when making saddle cover syringe needle, still can, by the position of perusal syringe needle, have more safety thereby make to operate; On the other hand, the first elastic card fastener is arranged to when one-body molded with saddle, and vacancy section provides activity space for the action of the first elastic card fastener.
Preferably, described saddle includes a level and smooth end face, between the extended surface of described end face and the axial line of described needle stand, has the angle of 5～10 °.
Herein, when syringe needle inserted to human body taking a blood sample, the axial line of syringe needle and needle stand conventionally and skin plane be the angle of 5～10 °, this just means, when handling safety blood taking needle, the face of saddle and contact skin is also the angle of 5～10 ° with above-mentioned axial line and just can farthest makes blood collection procedure more smooth, and has reduced patient's misery.
Positive progressive effect of the present invention is: on needle stand, slide to cover syringe needle by saddle is set, the safety of the processing to syringe needle after taking a blood sample is significantly promoted; Because avoided the use of spring syringe needle and over cap protection saddle is further set and with saddle smooth engagement, reduced patient's misery.
Brief description of the drawings
Fig. 1 is the structural representation of the safe blood-taking needle of preferred embodiment of the present invention.
Fig. 2 is the cutaway view of Fig. 1 along A-A.
Detailed description of the invention
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Fig. 1 is the structural representation of the safe blood-taking needle of the present embodiment, and Fig. 2 is the cutaway view of Fig. 1 along A-A, and as shown in Fig. 1～2, the safe blood-taking needle that the present embodiment relates to includes:
Needle stand 2, saddle 1, handle 7, needle guard 5, syringe needle 6 and a position-limit mechanism, needle guard 5 is sheathed on syringe needle 6, and needle stand 2 is tubular, and one end of needle stand 2 is fixed and is communicated with syringe needle 6, and the other end offers the interface being connected with a carrier pipe of outside;
The tubular that saddle 1 is both ends open and movable being sheathed on needle stand 2, the length of saddle 1 on activity direction is greater than the length of syringe needle 6.
The axial length of needle stand 2 is greater than the length of syringe needle 6.
Position-limit mechanism comprises spring secures rail to sleeper 11 and draw-in groove 31, draw-in groove 32.
Draw-in groove 31, draw-in groove 32 are arranged on needle stand 2, spring secures rail to sleeper 11 is arranged on saddle 1, when draw-in groove 31, draw-in groove 32 and spring secures rail to sleeper 11 cover syringe needle 6 or syringe needle 6 completely and expose completely for sliding at saddle 1, be interlocked with spring secures rail to sleeper 11, to limit the movement of saddle 1.
Handle 7 fixes near needle stand 2 and with saddle 1.
On saddle 1, be provided with the over cap 4 for the protection of position-limit mechanism.
Saddle 1 fixes with over cap 4, and the junction surface between over cap 4 and saddle 1 is level and smooth.
On saddle 1, be provided with skid-proof regions 12 and skid-proof regions 13.
Saddle 1 is made up of elastomeric material, and saddle 1 is one-body molded with spring secures rail to sleeper 11, and needle stand 2 and draw-in groove 31, draw-in groove 32 are one-body molded, are provided with some vacancy sections (not shown) on saddle 1.
Saddle 1 includes a level and smooth end face, between the extended surface of end face and the axial line of needle stand, has the angle of 5 °.
When syringe needle inserted to human body taking a blood sample, the axial line of syringe needle 6 and needle stand 2 conventionally and skin plane be the angle of 5～10 °, this just means, when handling safety blood taking needle, the face of saddle 1 and contact skin is also the angle of 5～10 ° with above-mentioned axial line and just can farthest makes blood collection procedure more smooth, and has reduced patient's misery.
On the other hand, between over cap 4 and saddle 1 with the face of contact skin on joint there is no gap, in the time of operation, can not cause patient's the jammed situation of skin.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence; can make various changes or modifications to these embodiments; for example; do not use the such buckle structure of spring secures rail to sleeper and draw-in groove; but it is first-class in needle stand to adopt elastic washer the fastening saddle of mode such as mutually to engage, but these changes and amendment all fall into protection scope of the present invention.
Claims (6)
1. a safe blood-taking needle, it includes a needle stand, a needle guard and a syringe needle, described needle guard is sheathed on described syringe needle, it is characterized in that, described safe blood-taking needle also includes a saddle, leader and a position-limit mechanism, described needle stand is tubular, and one end of described needle stand is fixed and is communicated with described syringe needle, and the other end offers the interface being connected with a carrier pipe of outside;
Described saddle is the tubular of both ends open and movable being sheathed on described needle stand, and the length of described saddle on activity direction is greater than the length of described syringe needle;
The axial length of described needle stand is greater than the length of described syringe needle;
Described position-limit mechanism is arranged at described saddle and described needle stand, for sliding into and cover completely after described syringe needle at described saddle, described saddle is fixed on described needle stand;
Described handle fixes near described needle stand and with described saddle;
On described saddle, be provided with an over cap for the protection of described position-limit mechanism;
Described saddle and described over cap fix, and the junction surface between described over cap and described saddle is level and smooth.
2. safe blood-taking needle as claimed in claim 1, is characterized in that, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
It is upper away from the interior week of one end of described syringe needle that described the first elastic washer is attached at described saddle, and, the laminating that the edge of described the first elastic washer and the inwall of described saddle are level and smooth;
Two described the second elastic washer cover merging are attached on described needle stand, when described the second elastic washer covers described syringe needle or described syringe needle completely and exposes completely for sliding at described saddle, fasten with described the first elastic washer, to limit the movement of described saddle.
3. safe blood-taking needle as claimed in claim 1, is characterized in that, described position-limit mechanism comprises a spring secures rail to sleeper and two draw-in grooves;
Described two draw-in grooves are arranged on described needle stand, described spring secures rail to sleeper is arranged on described saddle, when described two draw-in grooves and described spring secures rail to sleeper cover syringe needle or syringe needle completely and expose completely for sliding at described saddle, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
4. the safe blood-taking needle as described in any one in claim 1～3, is characterized in that, is provided with at least one skid-proof regions on described saddle.
5. safe blood-taking needle as claimed in claim 3, is characterized in that, described saddle is made up of elastomeric material, and described saddle and described spring secures rail to sleeper are one-body molded, and described needle stand and described draw-in groove are one-body molded, is provided with some vacancy sections on described saddle.
6. safe blood-taking needle as claimed in claim 3, is characterized in that, described saddle includes a level and smooth end face, between the extended surface of described end face and the axial line of described needle stand, has the angle of 5～10 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363854.6A CN104138264B (en) | 2014-07-28 | 2014-07-28 | Safe blood-taking needle |
| PCT/CN2014/084390 WO2016015364A1 (en) | 2014-07-28 | 2014-08-14 | Safe blood sampling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363854.6A CN104138264B (en) | 2014-07-28 | 2014-07-28 | Safe blood-taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104138264A true CN104138264A (en) | 2014-11-12 |
| CN104138264B CN104138264B (en) | 2016-08-24 |
Family
ID=51847726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410363854.6A Active CN104138264B (en) | 2014-07-28 | 2014-07-28 | Safe blood-taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104138264B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596013A (en) * | 2016-02-06 | 2016-05-25 | 湛江健力源医疗用品有限公司 | Shrinkage safety blood collecting needle |
| CN111387995A (en) * | 2020-03-31 | 2020-07-10 | 江苏苏云医疗器材有限公司 | Safety blood taking needle and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19543313A1 (en) * | 1995-11-21 | 1997-06-05 | Saueressig Ulrich | Safety cannula for use in dialysis |
| US20090118678A1 (en) * | 2003-11-21 | 2009-05-07 | Tsk Laboratory Japan | Injection needle |
| CN102697512A (en) * | 2012-06-04 | 2012-10-03 | 上海金塔医用器材有限公司 | Disposable safely-retracting blood taking needle |
| CN202553946U (en) * | 2012-05-15 | 2012-11-28 | 王振民 | Anti-stabbed bloodiness-prevention needle guard integrated novel venous injection needle with post-operation needle end |
| CN203208035U (en) * | 2013-03-29 | 2013-09-25 | 扬州美德莱医疗用品有限公司 | Anti-acupuncture sheath |
| CN204049656U (en) * | 2014-07-28 | 2014-12-31 | 上海金塔医用器材有限公司 | Safe blood-taking needle |
-
2014
- 2014-07-28 CN CN201410363854.6A patent/CN104138264B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19543313A1 (en) * | 1995-11-21 | 1997-06-05 | Saueressig Ulrich | Safety cannula for use in dialysis |
| US20090118678A1 (en) * | 2003-11-21 | 2009-05-07 | Tsk Laboratory Japan | Injection needle |
| CN202553946U (en) * | 2012-05-15 | 2012-11-28 | 王振民 | Anti-stabbed bloodiness-prevention needle guard integrated novel venous injection needle with post-operation needle end |
| CN102697512A (en) * | 2012-06-04 | 2012-10-03 | 上海金塔医用器材有限公司 | Disposable safely-retracting blood taking needle |
| CN203208035U (en) * | 2013-03-29 | 2013-09-25 | 扬州美德莱医疗用品有限公司 | Anti-acupuncture sheath |
| CN204049656U (en) * | 2014-07-28 | 2014-12-31 | 上海金塔医用器材有限公司 | Safe blood-taking needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596013A (en) * | 2016-02-06 | 2016-05-25 | 湛江健力源医疗用品有限公司 | Shrinkage safety blood collecting needle |
| CN111387995A (en) * | 2020-03-31 | 2020-07-10 | 江苏苏云医疗器材有限公司 | Safety blood taking needle and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104138264B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104288866B (en) | The anti-acupuncture venous transfusion puncturing needle of single use | |
| CN204181959U (en) | The anti-acupuncture venous transfusion puncturing needle of single use | |
| US9943258B2 (en) | Safety blood-collection needle | |
| CN204410825U (en) | Anti-safety of acupuncture blood taking needle | |
| CN205286368U (en) | Safe blood taking needle | |
| CN104274190B (en) | Safety blood taking needle | |
| CN103976748B (en) | Safe blood-taking needle | |
| CN203828945U (en) | Safe blood taking needle | |
| CN204411410U (en) | Anti-acupuncture double-vane venipuncture needle | |
| CN103976747B (en) | Safe blood-taking needle | |
| CN104138264A (en) | Safe blood taking needle | |
| CN203828943U (en) | Safe blood taking needle | |
| CN105816189B (en) | Anti- safety of acupuncture blood taking needle | |
| CN103977475A (en) | Safety vein needle | |
| CN102525489B (en) | Safe split type blood collector | |
| CN204411424U (en) | Anti-acupuncture syringe | |
| CN204049656U (en) | Safe blood-taking needle | |
| CN204181630U (en) | Safe blood-taking needle | |
| CN203828944U (en) | Safe blood taking needle | |
| CN203829413U (en) | Safe vein needle | |
| CN205458712U (en) | Safe blood taking needle | |
| CN104970809A (en) | Safety blood taking needle | |
| CN207590688U (en) | A kind of safety blood taking needle device | |
| CN204745224U (en) | Prevent cross infection's syringe needle | |
| CN105664304B (en) | Safety needle holder set and replaceable base thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |