CN104274190B - Safety blood taking needle - Google Patents
Safety blood taking needle Download PDFInfo
- Publication number
- CN104274190B CN104274190B CN201410143343.3A CN201410143343A CN104274190B CN 104274190 B CN104274190 B CN 104274190B CN 201410143343 A CN201410143343 A CN 201410143343A CN 104274190 B CN104274190 B CN 104274190B
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- CN
- China
- Prior art keywords
- needle
- saddle
- handle
- 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.)
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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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
-
- 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
- A61B5/150175—Adjustment of penetration depth
-
- 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
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
Abstract
The invention discloses a safety blood taking needle. The safety blood taking needle comprises a needle seat, a needle sleeve, a hose, a straight needle, a straight needle handle and a needle head, wherein the needle sleeve is arranged on the needle head in a sleeving manner, two ends of the hose are respectively communicated with the straight needle and the needle seat, the straight needle handle is arranged on the junction of the straight needle and the hose, and the safety blood taking needle also comprises a protective cover, a slide piece, a handle and a limiting mechanism, the needle seat is in a cylindrical shape, one end of the needle seat is fixed and communicated with the needle head, and the other end of the needle seat is connected with the hose; the slide piece is in a cylindrical shape with two ends being open and is movably arranged on the needle seat in a sleeving manner, and the length of the slide piece in the moving direction is greater than that of the needle head; the axial length of the needle seat is greater than that of the needle head; the limiting mechanism is arranged on the slide piece and the needle seat; the handle is fixed on the needle seat, and the handle is closely adjacent to the slide piece; the protective cover is arranged outside the straight needle in a covering manner and fixedly connected with the straight needle handle in a threading manner. The slide piece slides on the needle seat to shield the needle head, so that the safety for processing the needle head after the blood is taken can be greatly improved; the use of a spring-type needle head is avoided, and the pain of a patient can be alleviated.
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 blood sampling and the object of reaching a conclusion in patient, or the initial procedure of chemical examination will be completed by blood taking needle and blood taking tube, so one of blood taking needle medical device product that to be current global sales maximum.But it is worth noting, the blood collection needles human injury accident that current countries in the world hospital causes because of syringe needle fracture or medical personnel's misoperation occurs millions of person-times every year.The statistical data display that American Medical Association announces, only the U.S. about occurs that 1,000,000 person-times of medical personnel are unexpected is stabbed accident by blood taking needle every year, wherein has at least over thousands of people can by hepatitis B virus, hepatitis C virus and the AIDS viral infection that syringe needle adheres to.At every turn be 3000 dollars per capita because blood collection needles fracture by the emergency treatment expense that the medical personnel that stab and patient produce.
Domestic and international companies drops into the research and development of safety blood taking medical device energetically, and safe blood-taking needle is in the market very many, and these safety blood taking equipment have a lot of deficiency: 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, to need to needle guard on pinhead sleeve to protect syringe needle, such as, prevent syringe needle to be bent or collision etc.During use, when pulling out needle guard, easily cause pricking hazard, but real danger disposal stage after blood sampling completes, after extracting in person of blood collecting's body, when carrying out waste disposal, no matter putting into the process cartridge of specialty or bringing 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 employed the technological means of retractable needle, after blood sampling completes, utilize the isostructural elastic force of spring, syringe needle are retracted to one for the protection of in the structure such as protective sleeve of syringe needle.So, although can available protecting syringe needle, avoid medical worker to be wounded by stabbing, but patient can be caused painful greatly because of the mechanical action of needle retractable.
On the other hand, the staight needle for inserting vacuum tube of the blood taking needle flexible pipe other end, in use, is often also in naked state, processing safety is reduced.
Summary of the invention
The technical problem to be solved in the present invention is the defect in order to overcome prior art safety lower, easy aggravation patient suffering, provides the blood taking needle that a kind of safety is higher, patient suffering is less.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of safe blood-taking needle, it includes a needle stand, one needle guard, one flexible pipe, one staight needle, needle handle and a syringe needle always, described needle guard is sheathed on described syringe needle, the two ends of described flexible pipe are communicated with described needle stand with described staight needle respectively, staight needle handle is arranged at the junction of described staight needle and described flexible pipe, described staight needle is for inserting a vacuum tube, its feature is, described safe blood-taking needle also includes a protective cover, one saddle, leader and a position-limit mechanism, described needle stand is tubular, one end of described needle stand is fixed and is communicated with described syringe needle, the other end and described hose connection,
Described saddle be the tubular of both ends open and activity be sheathed on described needle stand, 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, after sliding at described saddle and covering described syringe needle completely, is fixed on by described saddle on described needle stand;
Described handle and described needle stand fix, and described handle is near described saddle;
The internal diameter of described protective cover is greater than the external diameter of described vacuum tube, and it is outer and fix with described staight needle handle spiral that described protective cover covers at described staight needle.Wherein, flexible pipe is the soft tube being used as blood transfusion tube etc. that field of medical products is commonly used, and does not repeat herein.
That is, 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 by saddle and switch between exposure two states completely.Position-limit mechanism then moves for limiting saddle.
During use, saddle is fixed in needle stand by position-limit mechanism in an initial condition, (i.e. syringe needle expose completely state), first takes out needle guard, takes a blood sample; After having taken a blood sample, remove fixing of saddle and needle stand, slided to syringe needle direction by saddle and cover syringe needle completely to saddle, now saddle is fixed in again on needle stand and (passes through position-limit mechanism).So, owing to not needing to be put on by needle guard and can cover syringe needle, safety promotes greatly.
In addition, fixed handle on needle stand, can grasp handle when operating on the one hand, on the other hand, handle, near living saddle, 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.
Moreover, establish protective cover at staight needle outer housing, effectively when staight needle is exposed, staight needle can be isolated, occur to prevent security incident.
Preferably, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
Described first elastic washer is attached at described saddle in the inner circumferential of one end of described flexible pipe, and, the laminating of the edge of described first elastic washer and the interior walls be smooth of described saddle;
Two described second elastic washer cover merging are attached on described needle stand, described second elastic washer be used for described saddle slide into cover completely described syringe needle or described syringe needle expose completely time, fasten with described first elastic washer, to limit the movement of described saddle.
That is, saddle to slide into toward syringe needle direction cover syringe needle or described syringe needle expose completely time, in order to saddle and needle stand are fixed, as the second elastic washer on the needle stand periphery of position-limit mechanism and the first elastic washer in saddle inner circumferential fasten 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 engaged 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, described two draw-in grooves and described spring secures rail to sleeper be used for described saddle slide into cover completely syringe needle or syringe needle expose completely time, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
That is, saddle slides axially along needle stand, needs when taking a blood sample, and the spring secures rail to sleeper on saddle fastens with the draw-in groove of one end of close needle stand on needle stand, and syringe needle exposes completely.After having taken a blood sample, when needing syringe needle to cover, then 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 referred to, can engagement release relation as long as apply the external force being greater than elastic force.
Preferably, described safe blood-taking needle also includes a protective sleeve;
Described needle stand is fixed in the merging of described protective sleeve cover, and described protective sleeve and described needle stand surround formation one for holding the cavity of described saddle;
Described handle is integrated to be arranged on described protective sleeve.
That is, a protective sleeve as connector is set further, needle stand was protected with being communicated with of flexible pipe.Handle, by being arranged at protective sleeve, is indirectly fixed with needle stand.
Preferably, described protective sleeve and the periphery spiral of described needle stand near one end of described needle stand are fixed.Herein, can make between protective sleeve and needle stand fixing more firm is set like this.In addition, protective sleeve can also protect saddle.
Preferably, described saddle is provided with at least one skid-proof regions.Herein, the setting of skid-proof regions is to allow finger have larger frictional force when promoting saddle, such as, at the large elastomeric material of saddle outer wrapping coefficient of friction or region a certain on saddle can be set to waveform/hole flute profile to increase the contact area of finger to saddle.
Preferably, described saddle is made up of elastomeric material, described saddle and described spring secures rail to sleeper one-body molded, described needle stand and described draw-in groove one-body molded, described saddle is provided with some vacancy sections.
When to arrange vacancy section be herein on the one hand to make saddle cover syringe needle, still can by the position of perusal syringe needle, thus operation be made to have more safety; On the other hand, when the first elastic card fastener is arranged to one-body molded with saddle, then vacancy section is that the action of the first elastic card fastener provides activity space.
Positive progressive effect of the present invention is: slide to cover syringe needle on needle stand by arranging saddle, significantly promotes after making blood sampling to the safety of the process of syringe needle; Because avoid the use of spring syringe needle, reduce the misery of patient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the safe blood-taking needle of present pre-ferred embodiments.
Fig. 2 is the sectional 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; Fig. 2 is the sectional view of Fig. 1 along A-A; as shown in Fig. 1 ~ 2; the safe blood-taking needle that the present embodiment relates to includes: needle stand 1, needle guard 2, flexible pipe 4, staight needle 12, handle 13, staight needle handle 14, protective cover 15, protective sleeve 3, syringe needle 6 and saddle 5; needle guard 2 is sheathed on syringe needle 6; needle stand 1 is the tubular of both ends open, and one end of needle stand 1 is communicated with flexible pipe 4 by protective sleeve 3, and the other end is provided with syringe needle 6.The two ends of flexible pipe 4 are communicated with needle stand 1 with described staight needle 12 respectively.
Staight needle handle 14 is arranged at the junction of staight needle 12 and flexible pipe 4, and staight needle 12 is for inserting a vacuum tube.
Saddle 5 be the tubular of both ends open and activity be sheathed on needle stand 1, the length of saddle 5 on activity direction is greater than the length of syringe needle 6.
The axial length of needle stand 1 is greater than the length of syringe needle 6.
Protective sleeve 3 overlaps merging and is fixed on needle stand 1, and protective sleeve 3 and needle stand 1 surround formation one for holding the cavity of saddle 5.
Handle 13 is integrated to be arranged on protective sleeve 3.Handle 13 is near saddle 5.
The internal diameter of protective cover 15 is greater than the external diameter of vacuum tube, and it is outer and fix with staight needle handle 14 spiral that protective cover 15 covers at staight needle 12.
The safe blood-taking needle of the present embodiment also includes a position-limit mechanism, and position-limit mechanism comprises spring secures rail to sleeper 8 and draw-in groove 81, draw-in groove 82.
Draw-in groove 81, draw-in groove 82 are arranged on needle stand 1, spring secures rail to sleeper 8 is arranged on saddle 5, draw-in groove 81, draw-in groove 82 and spring secures rail to sleeper 8 for slide at saddle 5 cover completely syringe needle 6 or syringe needle 6 expose completely time, be interlocked with spring secures rail to sleeper 8, to limit the movement of saddle 5.
Be formed with a passage in protective sleeve 3, one end of this passage and needle stand 1 are fixed away from the periphery spiral of one end of syringe needle 6.The other end of this passage is communicated with flexible pipe 4.
Further, saddle 5 is provided with skid-proof regions 7, skid-proof regions 7 is the trench structure of interior band sawtooth pattern, while enlarge active surface, can be more conducive to finger push saddle 5.
Saddle 5 is made up of elastomeric material, and saddle 5 is one-body molded with spring secures rail to sleeper 8, protective sleeve 3 and draw-in groove 81 and draw-in groove 82 one-body molded, saddle 5 is provided with some vacancy sections (not shown).
The safe blood-taking needle that the present embodiment relates to, needle stand 1 will be longer than syringe needle 6, and so, the saddle 5 of above-mentioned tubular just can slidably reciprocate on needle stand 1, makes syringe needle 6 covered by saddle 5 and switch between exposure two states completely.
During use, saddle is by the engaging of draw-in groove 81 and spring secures rail to sleeper 8 in an initial condition, is fixed in needle stand 1, (i.e. syringe needle 6 expose completely state), first takes out needle guard 2, takes a blood sample; After having taken a blood sample, releasing saddle 5 is fixing with needle stand 1, saddle 5 is slided to syringe needle 6 direction to saddle 5 and covers the form shown in Fig. 1 ~ 2 in syringe needle 6(and the present embodiment accompanying drawing completely), now saddle 5 to be fixed on needle stand 1 (engaging by spring secures rail to sleeper 8 and draw-in groove 82) again.So, can cover syringe needle 6 owing to not needing to be put on by needle guard 2, safety promotes greatly again.
Although the foregoing describe 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 defined by the appended claims.Those skilled in the art is under the prerequisite not deviating from principle of the present invention and essence; various changes or modifications can be made to these embodiments; such as; do not use spring secures rail to sleeper and the such buckle structure of 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 change and amendment all falls into protection scope of the present invention.
Claims (6)
1. a safe blood-taking needle, it includes a needle stand, one needle guard, one flexible pipe, one staight needle, needle handle and a syringe needle always, described needle guard is sheathed on described syringe needle, the two ends of described flexible pipe are communicated with described needle stand with described staight needle respectively, staight needle handle is arranged at the junction of described staight needle and described flexible pipe, described staight needle is for inserting a vacuum tube, it is characterized in that, described safe blood-taking needle also includes a protective cover, one saddle, leader and a position-limit mechanism, described needle stand is tubular, one end of described needle stand is fixed and is communicated with described syringe needle, the other end and described hose connection,
Described saddle be the tubular of both ends open and activity be sheathed on described needle stand, 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, after sliding at described saddle and covering described syringe needle completely, is fixed on by described saddle on described needle stand;
Described handle and described needle stand fix, and described handle is near described saddle;
The internal diameter of described protective cover is greater than the external diameter of described vacuum tube, and it is outer and fix with described staight needle handle spiral that described protective cover covers at described staight needle;
Described safe blood-taking needle also includes a protective sleeve;
Described needle stand is fixed in the merging of described protective sleeve cover, and described protective sleeve and described needle stand surround formation one for holding the cavity of described saddle;
Described handle is integrated to be arranged on described protective sleeve.
2. safe blood-taking needle as claimed in claim 1, it is characterized in that, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
Described first elastic washer is attached at described saddle in the inner circumferential of one end of described flexible pipe, and, the laminating of the edge of described first elastic washer and the interior walls be smooth of described saddle;
Two described second elastic washer cover merging are attached on described needle stand, described second elastic washer be used for described saddle slide into cover completely described syringe needle or described syringe needle expose completely time, fasten with described first elastic washer, to limit the movement of described saddle.
3. safe blood-taking needle as claimed in claim 1, it 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, described two draw-in grooves and described spring secures rail to sleeper be used for described saddle slide into cover completely syringe needle or syringe needle expose completely time, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
4. safe blood-taking needle as claimed in claim 1, it is characterized in that, described protective sleeve is communicated with one end of described flexible pipe periphery spiral with described needle stand is fixed.
5. the safe blood-taking needle according to any one of Claims 1 to 4, is characterized in that, described saddle is provided with at least one skid-proof regions.
6. safe blood-taking needle as claimed in claim 3, it is characterized in that, described saddle is made up of elastomeric material, described saddle and described spring secures rail to sleeper one-body molded, described needle stand and described draw-in groove one-body molded, described saddle is provided with some vacancy sections.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143343.3A CN104274190B (en) | 2014-04-11 | 2014-04-11 | Safety blood taking needle |
| PT148890841T PT3045113T (en) | 2014-04-11 | 2014-06-23 | Safety blood-collection needle |
| BR112016010016-6A BR112016010016B1 (en) | 2014-04-11 | 2014-06-23 | SAFETY BLOOD COLLECTION NEEDLE |
| ES14889084.1T ES2669719T3 (en) | 2014-04-11 | 2014-06-23 | Safe blood collection needle |
| JP2016524517A JP6169794B2 (en) | 2014-04-11 | 2014-06-23 | Safety blood collection needle |
| US15/025,943 US9943258B2 (en) | 2014-04-11 | 2014-06-23 | Safety blood-collection needle |
| EP14889084.1A EP3045113B1 (en) | 2014-04-11 | 2014-06-23 | Safety blood-collection needle |
| PCT/CN2014/080490 WO2015154336A1 (en) | 2014-04-11 | 2014-06-23 | Safety blood-collection needle |
| HK16109435.6A HK1221140A1 (en) | 2014-04-11 | 2016-08-08 | Safety blood-collection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143343.3A CN104274190B (en) | 2014-04-11 | 2014-04-11 | Safety blood taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104274190A CN104274190A (en) | 2015-01-14 |
| CN104274190B true CN104274190B (en) | 2015-05-27 |
Family
ID=52249893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143343.3A Active CN104274190B (en) | 2014-04-11 | 2014-04-11 | Safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104274190B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3045113B1 (en) | 2014-04-11 | 2018-02-28 | Shanghai Jinta Medical Co., Ltd. | Safety blood-collection needle |
| CN107929884B (en) * | 2017-11-20 | 2020-09-01 | 宜昌市中心人民医院 | Safety syringe needle |
| CN109893142B (en) * | 2019-04-16 | 2023-11-17 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
| CN111012365A (en) * | 2019-10-18 | 2020-04-17 | 上海宝舜医疗器械有限公司 | Safety protection sleeve of single-wing blood taking needle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738665A (en) * | 1996-09-26 | 1998-04-14 | Becton, Dickinson And Company | Shield and actuator for needles |
| CN201642029U (en) * | 2010-02-09 | 2010-11-24 | 侯丽娜 | Safe disposable blood taking needle |
| CN102274561A (en) * | 2006-08-28 | 2011-12-14 | 宝利麦迪柯尔有限公司 | Protector cover assembly |
| CN202446098U (en) * | 2012-02-21 | 2012-09-26 | 王振民 | Vein vacuum blood taking needle with multifunctional visible blood return display |
| CN202723859U (en) * | 2012-06-28 | 2013-02-13 | 河南曙光健士医疗器械集团股份有限公司 | Safe hemostix |
| CN103153363A (en) * | 2010-07-15 | 2013-06-12 | Mddp有限责任公司 | I.V. infusion or blood collection apparatus |
| CN203828945U (en) * | 2014-04-11 | 2014-09-17 | 上海金塔医用器材有限公司 | Safe blood taking needle |
-
2014
- 2014-04-11 CN CN201410143343.3A patent/CN104274190B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738665A (en) * | 1996-09-26 | 1998-04-14 | Becton, Dickinson And Company | Shield and actuator for needles |
| CN102274561A (en) * | 2006-08-28 | 2011-12-14 | 宝利麦迪柯尔有限公司 | Protector cover assembly |
| CN201642029U (en) * | 2010-02-09 | 2010-11-24 | 侯丽娜 | Safe disposable blood taking needle |
| CN103153363A (en) * | 2010-07-15 | 2013-06-12 | Mddp有限责任公司 | I.V. infusion or blood collection apparatus |
| CN202446098U (en) * | 2012-02-21 | 2012-09-26 | 王振民 | Vein vacuum blood taking needle with multifunctional visible blood return display |
| CN202723859U (en) * | 2012-06-28 | 2013-02-13 | 河南曙光健士医疗器械集团股份有限公司 | Safe hemostix |
| CN203828945U (en) * | 2014-04-11 | 2014-09-17 | 上海金塔医用器材有限公司 | Safe blood taking needle |
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| Publication number | Publication date |
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| CN104274190A (en) | 2015-01-14 |
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