CN201008557Y - Disposable medical blood taking needle - Google Patents
Disposable medical blood taking needle Download PDFInfo
- Publication number
- CN201008557Y CN201008557Y CNU2007201187769U CN200720118776U CN201008557Y CN 201008557 Y CN201008557 Y CN 201008557Y CN U2007201187769 U CNU2007201187769 U CN U2007201187769U CN 200720118776 U CN200720118776 U CN 200720118776U CN 201008557 Y CN201008557 Y CN 201008557Y
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- CN
- China
- Prior art keywords
- needle
- shell
- medical blood
- blood collection
- disposable medical
- 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.)
- Expired - Lifetime
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- 239000008280 blood Substances 0.000 title claims abstract description 46
- 210000004369 blood Anatomy 0.000 title claims abstract description 46
- 238000007906 compression Methods 0.000 description 4
- 238000010241 blood sampling Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 241000256852 Aculeata Species 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
一种一次性医用采血针，包括一筒状外壳及设置在该外壳的内部且与该外壳之间滑动配合的一针芯，该外壳的近底端处设有滑动孔，该滑动孔的上方的外壳上设有止动孔，该止动孔的下表面向该外壳的内部凸出形成一挡止面，该滑动孔的上表面向外壳内侧上方弯曲延伸形成一滑动面；该针芯包括臂座及针体，该针体的一部分设置在该臂座的内部，从该臂座的侧壁上向斜下方延伸出至少一弹性臂，该弹性臂的末端沿水平方向延伸出一卡钩，该卡钩容置于该滑动孔中。本实用新型的采血针一次发射之后即被自锁住而无法恢复至使用前的初始状态，从而避免了被再次发射的可能。
A disposable medical blood collection needle comprises a cylindrical shell and a needle core arranged inside the shell and slidingly matched with the shell, a sliding hole is arranged near the bottom end of the shell, a stop hole is arranged on the shell above the sliding hole, the lower surface of the stop hole protrudes toward the inside of the shell to form a stop surface, and the upper surface of the sliding hole bends and extends upward toward the inside of the shell to form a sliding surface; the needle core comprises an arm seat and a needle body, a part of the needle body is arranged inside the arm seat, at least one elastic arm extends obliquely downward from the side wall of the arm seat, and a hook extends horizontally from the end of the elastic arm, and the hook is accommodated in the sliding hole. The blood collection needle of the utility model is self-locked after being fired once and cannot be restored to the initial state before use, thereby avoiding the possibility of being fired again.
Description
Technical field
This utility model relates to a kind of Dispoable medical blood taking needle, relates in particular to a kind of self-locking type Dispoable medical blood taking needle.
Background technology
When carrying out medical blood specimen collection, often need use various blood sampling devices, and blood taking needle is a kind of of blood sampling device.The blood taking needle of Cai Yonging is a kind of needle head structure that has the simple fixation head the earliest, this kind blood taking needle in use, the depth of acupuncture treatment and the speed that penetrates and extract need depend on medical personnel's experience, often be difficult to realization and make rightly that wound is less can adopt blood sufficiently again, bring big painful to patient.
In order to address the above problem, a kind of automatic blood-taking needle that is connected with catapult-launching gear has appearred, the blood taking needle of the type generally comprises shell, nook closing member and catapult-launching gear, catapult-launching gear be assembled in the structure that forms one on the shell after nook closing member links to each other, this blood collection needles is promptly extracted from human body after penetrating the degree of depth certain in the human body apace by catapult-launching gear control nook closing member, thereby it is painful to have alleviated patient ground.But along with the more and more outstanding of safety problem of taking a blood sample, for fear of cross infection, blood taking needle can only be by disposable use, but because the blood taking needle of the type can repeat its transmission, so just might cause the repeated use of blood taking needle, and cause cross infection owing to operator's carelessness.
Summary of the invention
Main purpose of the present utility model is, provide a kind of once use after promptly by from pinning and can't be to its Dispoable medical blood taking needle of launching once more.
In order to realize above-mentioned purpose, this utility model provides a kind of Dispoable medical blood taking needle, comprise a cylindrical case and be arranged on this shell inside and and this shell between the nook closing member that is slidingly matched, the positon of near bottom of this shell is provided with sliding eye, the shell of the top of this sliding eye is provided with stop hole, the lower surface of this stop hole protrudes to the inside of this shell and forms a stopping surface, and the upper surface of this sliding eye forms a sliding surface to shell inside front bending extension; This nook closing member comprises arm seat and needle body, and the part of this needle body is arranged on the inside of this arm seat, extends at least one elastic arm to oblique below from the sidewall of this arm seat, and the terminal along continuous straight runs of this elastic arm extends a grab, and this grab is placed in this sliding eye.
The inwall of the symmetrical both sides of the proximal portion of this shell is provided with two inclined-planes, and the both sides, top of this arm seat are extended two flexure strips obliquely upward, and this two flexure strip is free open configuration, and its open terminal outside just contacts with the bottom on this two inclined-plane.
The top of this shell is provided with a top board, and the central authorities of this top board are provided with a needle outlet.
The top of the arm seat of this nook closing member links to each other with a boss by a cylinder, and the top size of this boss is greater than the aperture of this needle outlet.
This nook closing member also comprises a pin medicated cap and a base, and this needle body stretches out a needle section from the center of top of this boss, and an end of this pin medicated cap is socketed in this needle section, and the other end extend out to from this needle outlet outside this shell, and this base links to each other with the bottom of this arm seat.
The symmetrical both sides that the inner surface of this shell is not provided with the inclined-plane are provided with two gathering sills, and the top of this two gathering sill along the bearing of trend of this shell from this shell extends to the bottom, corresponding to this two gathering sill, is provided with two slide blocks in the corresponding both sides of this base.
The bottom of the outer surface of this shell is provided with many fins along the bearing of trend of this shell.
The utlity model has following beneficial effect, blood taking needle of the present utility model can use a supporting catapult-launching gear to control its emission, this blood taking needle promptly can't be returned to the original state before using after the primary emission from pinning, thereby that has avoided being launched once more may, fundamentally guarantee the disposable use of blood taking needle, guaranteed safety.
Description of drawings
Fig. 1 is the axonometric chart of Dispoable medical blood taking needle nook closing member of the present utility model;
Fig. 2 is the vertical view of Dispoable medical blood taking needle nook closing member of the present utility model;
Fig. 3 is the front view of Dispoable medical blood taking needle nook closing member of the present utility model;
Fig. 4 is the side view of Dispoable medical blood taking needle nook closing member of the present utility model;
Fig. 5 is the axonometric chart of Dispoable medical blood taking needle shell of the present utility model;
Fig. 6 is the side view of Dispoable medical blood taking needle shell of the present utility model;
Fig. 7 is the vertical view of Dispoable medical blood taking needle shell of the present utility model;
Fig. 8 is the profile of the A-A line among Fig. 7;
The sketch map that cooperates of shell and nook closing member when Fig. 9 Dispoable medical blood taking needle of the present utility model does not use;
Figure 10 Dispoable medical blood taking needle of the present utility model uses the sketch map that cooperates of rear casing and nook closing member.
Drawing reference numeral
The 1-nook closing member
The 11-needle body
The 111-needle section
The 112-Aculeata
The 12-cylinder
The 13-boss
The 14-arm seat
The 141-platform
The 142-connector
The 15-base
The 151-slide block
16-pin medicated cap
The 17-flexure strip
The 18-elastic arm
The 181-grab
The 2-shell
The 21-needle section
The 211-top board
The 2111-needle outlet
212-wall wall
The 22-compression unit
The 221-skew wall
The 2211-inclined-plane
23-is from the lock section
The 231-fin
The 232-stop hole
The 2321-stopping surface
The 233-sliding eye
The 2331-sliding surface
The 24-gathering sill
The specific embodiment
This utility model provides a kind of Dispoable medical blood taking needle, and this blood taking needle can or be propelled with a catapult-launching gear and be applied to medical blood collection procedure after device links to each other, and can only carry out primary emission.
See also Fig. 1 to shown in Figure 10, be of the present utility model one preferable possible embodiments.Blood taking needle of the present utility model comprises a nook closing member 1 and a shell 2, and this nook closing member 1 is assembled in this shell 2 and is slidingly matched with it.
See also Fig. 1 to shown in Figure 4, this nook closing member 1 comprises that a needle body 11 and is used to wear the cylinder 12 of this needle body 11, the top of this cylinder 12 is provided with a boss 13, the bottom of this cylinder 12 is connected with an arm seat 14, the first half of this arm seat 14 is the platform 141 in a four directions, Lower Half is a connector 142, and the bottom of this connector 142 is connected with a base 15.This needle body 11 passes from the center of this cylinder 12, this boss 13 and this platform 141, and stretches out a needle section 111 from the center of top of this boss 13, passes an Aculeata 112, one pin medicated caps 16 from the bottom of this platform 141 and is socketed on this needle section 111.Be positioned at from the top of this platform 141 on the plane of cylinder both sides and extend two flexure strips 17 obliquely upward, extend two elastic arms 18 to oblique below from the two side of this platform 141, the terminal along continuous straight runs of this two elastic arm 18 extends two grabs 181.The both sides of this base 15 are provided with two slide blocks 151.
See also Fig. 5 to shown in Figure 8, this shell 2 is the housing of a tubular, and it is divided into three parts by top to bottom, is respectively needle section 21, compression unit 22 and from the lock section 23, this three part connects in turn.The top of this needle section 21 is provided with a top board 211, this top board 211 is provided with a needle outlet 2111, the aperture of this needle outlet 2111 is less than the top size of this boss 13, thereby makes this nook closing member 1 can not deviate from this shell 2, and the symmetrical both sides of this needle section 21 are provided with two vertical wall walls 212.The symmetrical both sides of this compression unit 22 are provided with intilted two skew walls 221 in upper end, and the top of this two skew wall 221 links to each other with the bottom of this two walls wall 212, and the inner surface of this two skew wall 221 forms two inclined-planes 2211.Should be from the lock section 23 outer surface be provided with many parallel to each other and along the fin 231 of the bearing of trend of this shell 2, should be from the lock section the symmetrical both sides of 23 positon of near bottom also be provided with two sliding eyes 233, be provided with two stop hole 232 directly over this two sliding eye 233.The lower surface of this stop hole 232 23 inboard extends to protrude and forms a stopping surface 2321 from the lock section to this, the upper surface of this sliding eye 233 is the level and smooth circular-arc sliding surface 2331 that extends to form to this stopping surface 2321, and the upper end of this sliding surface 2331 extends to this stopping surface 2321 and links to each other.The symmetrical both sides that the inner surface of this shell 2 is not provided with the inclined-plane also are provided with two gathering sills 24, and the top of this axis of guide 24 along the bearing of trend of this shell 2 from this shell 2 extends to the bottom.
See also shown in Figure 9, during assembling, this nook closing member 1 is arranged in this shell 2, one end of this pin medicated cap 16 is socketed in this needle section 111, and is connected with this boss 13, and these pin medicated cap 16 other ends extend out to outside the shell 2 from this needle outlet 2111, this two slide block 151 is slidingly matched with this two gathering sill 24, this two flexure strip 17 is and opens free state, and its open terminal outside just contacts with the bottom on this inclined-plane 2211, and this two grab 181 is placed in this two sliding eye 233.
During use, this blood taking needle is connected with a catapult-launching gear (not shown), twist into two parts the junction of pin medicated cap 16 and boss 13 and pull up pin medicated cap 16, catapult-launching gear gives this vertical impact power that base 15 1 makes progress, nook closing member 1 promptly slides because of the inertia forward end, the end of two grabs 181 of this two elastic arm 18 upwards slides along this sliding surface 2331, and this two elastic arm 18 is compressed distortion, and this two grab 181 is crossed this stop hole 232 and continued upwards to slide along the inner surface of this shell 2; This two flexure strip 17 pushes forward simultaneously, and the end of flexure strip 17 promptly upwards slides along this inclined-plane 2211, makes open two flexure strips 17 compressions originally, and this moment, this needle section 111 was stretched out from this needle outlet 2111, carried out blood sampling work.When the catapult-launching gear (not shown) was pulled the trigger this nook closing member 1 on this boss 13 is resisted against this top board 211, the striker (not shown) of catapult-launching gear can be return immediately.Afterwards because the effect of the recuperability that flexure strip 17 distortion backs produce, nook closing member 1 is rollback in shell 2, when the lower surface of this grab 181 is retracted into (seeing also shown in Figure 10) when contacting with stopping surface 2321, this stopping surface 2321 has stoped the continuation rollback of this nook closing member 1, the deformation recuperability of this two elastic arm 18 pushes this grab 181 in this stop hole 232, make nook closing member 1 be locked in this position and can't return initial conditions before using, and this moment, this needle section 111 was retracted to the interior intracavity of shell 2, also pin medicated cap 16 can be recovered on the needle section 111 again to guarantee safety.
Blood taking needle of the present utility model can use a supporting catapult-launching gear to control its emission, this blood taking needle promptly can't be returned to the original state before using after the primary emission from pinning, thereby that has avoided being launched once more may, fundamentally guarantee the disposable use of blood taking needle, guaranteed safety.
Yet the above only is a preferable possible embodiments of the present utility model, and unrestricted protection domain of the present utility model, so the equivalent structure that all utilization this utility model description and accompanying drawing content have been done changes, all be included in the protection domain of the present utility model,
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201187769U CN201008557Y (en) | 2007-02-28 | 2007-02-28 | Disposable medical blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201187769U CN201008557Y (en) | 2007-02-28 | 2007-02-28 | Disposable medical blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008557Y true CN201008557Y (en) | 2008-01-23 |
Family
ID=39043489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201187769U Expired - Lifetime CN201008557Y (en) | 2007-02-28 | 2007-02-28 | Disposable medical blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008557Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011131138A1 (en) * | 2010-04-22 | 2011-10-27 | Wang Lin | Disposable safety lancet device employed in automated and painless procedure |
| CN103211601A (en) * | 2013-04-09 | 2013-07-24 | 苏州市玮琪生物科技有限公司 | Blood taking needle |
| CN104958079A (en) * | 2015-06-19 | 2015-10-07 | 中山瑞福医疗器械科技有限公司 | Rear pressing type blood taking needle device |
| CN105769218A (en) * | 2016-03-21 | 2016-07-20 | 祁健 | Disposable safe self-destruction blood taking needle |
| CN107625526A (en) * | 2017-10-23 | 2018-01-26 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading pin |
| WO2019161787A1 (en) * | 2018-02-24 | 2019-08-29 | 苏州施莱医疗器械有限公司 | Tail-press safe disposable blood collection device |
-
2007
- 2007-02-28 CN CNU2007201187769U patent/CN201008557Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011131138A1 (en) * | 2010-04-22 | 2011-10-27 | Wang Lin | Disposable safety lancet device employed in automated and painless procedure |
| CN103211601A (en) * | 2013-04-09 | 2013-07-24 | 苏州市玮琪生物科技有限公司 | Blood taking needle |
| CN104958079A (en) * | 2015-06-19 | 2015-10-07 | 中山瑞福医疗器械科技有限公司 | Rear pressing type blood taking needle device |
| CN105769218A (en) * | 2016-03-21 | 2016-07-20 | 祁健 | Disposable safe self-destruction blood taking needle |
| CN107625526A (en) * | 2017-10-23 | 2018-01-26 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading pin |
| CN107625526B (en) * | 2017-10-23 | 2019-08-23 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading needle |
| WO2019161787A1 (en) * | 2018-02-24 | 2019-08-29 | 苏州施莱医疗器械有限公司 | Tail-press safe disposable blood collection device |
| EP3753491A4 (en) * | 2018-02-24 | 2021-06-30 | Sterilance Medical (Suzhou) Inc. | Tail-press safe disposable blood collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080123 |