CN102106735A - Pen type safety blood taking needle - Google Patents
Pen type safety blood taking needle Download PDFInfo
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- CN102106735A CN102106735A CN2010105661854A CN201010566185A CN102106735A CN 102106735 A CN102106735 A CN 102106735A CN 2010105661854 A CN2010105661854 A CN 2010105661854A CN 201010566185 A CN201010566185 A CN 201010566185A CN 102106735 A CN102106735 A CN 102106735A
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Abstract
The invention discloses a pen type safety blood taking needle, which consists of a sheath, an outer cylinder, a needle base, a cock, a needle tube, a spring and a blood blocking cover, wherein a conical head is arranged at the front end of the outer cylinder; an inner hole of the conical head is communicated with an inner cavity of the outer cylinder; the lower section of the conical head expands conically; and side walls of a base of the conical head are provided with symmetrical fan-shaped holes. The lower section of the needle base is provided with a spring supporting platform, and the supporting platform is provided with two vertical and symmetrical suspension hooks which are clockwise or counterclockwise; a central hole of the cock is nested at the conical and expanded lower edge of the conical head, and the suspension hooks pass through the holes at the front end of the outer cylinder and are screwed and locked with the holes of the cock; the spring can be compressed in a space between the needle base and the inner hole of the conical head; and when the blood taking is finished, the limitation on the suspension hooks of the needle base can be released only by poking the cock to release the needle base and reset the spring so as to drive the needle tube to retract into the inner cavity of the outer cylinder. The pen type safety blood taking needle is simple in structure, convenient to use, safe and reliable, is destroyed after being used once, automatically withdraws a needle tip, protects medical personnel, and eliminates the injury of needling.
Description
(1) technical field
The present invention relates to a kind of medical apparatus and instruments, a kind of specifically pen type safety blood taking pin with needle holder, it cooperates with vacuum test tube, is used for the gatherer process of venous blood specimen.
(2) background technology
People are used for correctly diagnosing the illness by various means collections, acquisition Human Physiology, pathological information; Wherein the collection to blood preparation has following three kinds of approach usually: (1) subcutaneous blood sampling is used for the simple and easy differential counting of blood constituent is detected more; Subcutaneous (the solid or prismatic) blood taking needles that use more; (2), venous blood collection, can carry out detailed detection to nosetiology in hematology, the blood and other related discipline indexs, in clinical, use very extensively, use pen type or split type vein blood taking needle more; (3), arterial blood drawing, how in critical emergency case, aterial blood gas indexes following is detected, use lessly, use the arterial blood drawing syringe to gather more.Collection and check to blood preparation, its objective is by detection bacteriology, virological infection level in analyzing and testing, acquisition blood blood component and the blood of blood constituent, to understand Human Physiology and pathologic condition, or the effect after the understanding Drug therapy, and to advancing of disease, lapse to and judgement etc. is made in prognosis.
In venous blood collection, various countries clinical medical and nursing personnel, most pen type blood taking needle or split type vein blood taking needles of using; The present invention only relates to the puncture blood collecting utensil in the venous blood gatherer process.
The pen type blood taking needle: its structure is the needle tubing that connects, and all there is sharp cutting edge at its two ends; Hypomere is fixed on the needle stand in the needle tubing, and front end is called that venipuncture needle, rear end are called collection blood pin, collection blood wire surface has blood resistance unit, needle tubing two ends that protective casing (structure is seen accompanying drawing 1) is arranged.During use, the blood taking needle rotation is fixed on the needle holder outer cylinder front end, implements venipuncture, after the success, vacuum test tube is inserted needle holder rear end cavity, make collection blood pin rear end cutting edge pass blood resistance unit and run through and thrust the vacuum tube plug, under suction function, in blood suction blood taking tube; So repeatedly, can realize the collection of multitube time blood specimen; Blood sampling finishes, and extracts venipuncture needle, and local hemostasis to depleted blood taking needle, needs the nurse once more with blood taking needle front end sheath, is enclosed within the blood taking needle appearance again, rotates needle body then, and blood taking needle is taken off from needle holder, blood taking needle is discarded in the waste holder again; Nurse's both hands overlap process again in this operation, and owing to multiple reason, nurse's finger is usually easily stabbed by needle point, and needle stick injury takes place, and causes the infection or the propagation of blood borne disease, as hepatitis C, acquired immune deficiency syndrome (AIDS); Consequence is extremely serious.
Split type vein blood taking needle: its structure is on the flexible pipe tail end needle stand of venoclysis needle, connects a collection blood pin and constitutes (structure is seen accompanying drawing 2).It in use, also need the rotation of collection blood pin is fixed on the needle holder outer cylinder front end, hand-held venipuncture is implemented puncture at vein, after the success, vacuum test tube is inserted needle holder rear end cavity, make collection blood pin cutting edge pass blood resistance unit and thrust the vacuum tube plug, under suction function, blood is sucked blood taking tube.When needing, so repeatedly, can realize the multitube blood sampling; Blood sampling finishes, and extracts venipuncture needle, and local hemostasis is disposed depleted blood taking needle, needs nurse's hands to pinch collection blood pin needle stand appearance, rotates needle body then, and blood taking needle is taken off from needle holder, is discarded in the waste holder together with venipuncture needle; In the said process, because the blood sampling flexible pipe is longer, about 20 centimetres, the remaining blood in the venipuncture needle of front end and the flexible pipe, in the process that blood taking needle and flexible pipe take off, blood can trickle everywhere, contaminated environment or human body; At present, in clinical position, nurse and waste treatment personnel's finger also is very easy to be hindered by the blood taking needle spine, infects blood borne disease because of needle stick injury causes; Consequence is extremely serious.
Add up according to the American National medical department: the needle stick injury that occurs in injection puncture and blood collection procedure accounts for 26% of total injury incidence rate; Federal Government was issued " safety of acupuncture and prevention " bill in 2000: require medical institutions to be necessary for the employee safe medical apparatus is provided; The blood source disease working standard that U.S. National Institute Department of Health formulates: injection, puncture procedure rules, firmly stop: hands takes off syringe needle, bending syringe needle, from the broken needle head, overlap the behavior of syringe needle again.
China is because economy and historical reasons are to use the syringe puncture to gather and use the mode of above two kinds of blood taking needles collection more than clinical blood sampling is operated.According to China's medical statistics, scholarly journal report, the clinical care practitioner by the incidence rate of needle stick injury up to more than 80%.Endanger extremely serious.
In sum, clinical press for a kind of can be in above-mentioned blood collection procedure, can effectively avoid needle stick injury, eliminate the safe and reliable blood taking needle utensil of risk.Just at present, the domestic neither one of still not going back can be disclosed with the technical scheme of simple economy, practical safety.
(3) summary of the invention
The present invention is exactly the solution that proposes at the existing deficiency of above-mentioned venous blood collection process.Have safe, reliable, easy, practical, inexpensive, can simplify the clinical manipulation program, increase work efficiency, eliminate the characteristics of needle stick injury; Specifically, it is a kind of safety pen type blood taking needle with needle holder, is used for the gatherer process of vacuum test tube to venous blood.
Pen type safety blood taking pin of the present invention is realized by following scheme: pen type safety blood taking pin, form by needle tubing, spring, needle stand, blood resistance unit, cock, urceolus, sheath; It is characterized in that: porose, the interior bonding needle tubing of needle stand central authorities, the needle stand hypomere has the spring support platform, its outer pocketed springs; The outer rim of spring support platform has two arcuated fin pieces of abduction downwards, and its fin maximum spacing (diameter) equals the internal diameter of urceolus; Vertical symmetric two hanged hooks (tongue of band barb) are arranged above the spring support platform;
The front end of urceolus has conehead, and the conehead endoporus communicates with outer tube inner chamber, and the conehead endoporus dwindles in the port, form a constriction step, the hypomere of conehead has a taper to expand, on the outer cylinder front end wall of conehead basilar part, with the axle center symmetry two perforates are arranged, can pass hanged hook; Urceolus lower end crimping turns up to form and holds handle, and urceolus hypomere inwall has the prominent ridge of an annular.
Cock is the medicated cap shape, and the center is porose, and the aperture equals urceolus conehead basilar part diameter, but expands portion's external diameter less than the taper of conehead hypomere; Around the centre bore of cock, symmetry has two fan-shaped perforates, and is corresponding consistent with the perforate of overcoat front end; There is the rotation plectrum of downward (or towards last direction) side of cock.
Hanged hook passes the perforate of outer cylinder front end and the perforate in the cock, and the rotation by cock realizes the locking or outward winding of spinning of hanged hook is got loose; Spring is compressed in the space of spring support platform and the formation of urceolus conehead endoporus.
Rotation cock plectrum can be removed the locking to hanged hook, and needle stand is discharged, and under acting force of the spring, needle stand, needle tubing, blood resistance unit is together pressed in (getting back to) outer tube inner chamber, no longer exposes.
The edge, lower ending opening place of needle stand turns up and expands, and can be connected with blood resistance unit is nested; Needle tubing runs through needle stand goes forward side by side into blood resistance unit, uses binding agent, bonding firmly tube wall and needle stand.
Above structure has been formed pen type safety blood taking pin of the present invention.
During use, operate: take off the front end sheath, the row vein puncture with conventional venous blood acquisition method, after the success, vacuum test tube is inserted needle holder rear end cavity, make collection blood pin cutting edge pass blood resistance unit and thrust the vacuum tube plug, under suction function, with blood suction blood taking tube.
When blood sampling finishes, urceolus (containing blood taking needle) is taken off, the vein local hemostasis.Method of disposal to the blood taking needle after using is: external, one hand-held blood taking needle holder urceolus, this hands thumb is stirred cock, make it rotation, the fan-shaped verge of opening of cock can be lost the restriction that needle stand is linked up with mutually, needle stand is freed, and the compression spring is released, and puncture needle, needle stand, blood resistance unit together can be recovered in the urceolus.Because needle stand abduction fin is spacing by the prominent ridge of the annular of urceolus hypomere, make in the blood taking needle retraction process, collection blood pin is limited in the urceolus, must not expose.The puncture needle of blood taking needle epimere enters the urceolus space and no longer exposes under spring action.Eliminate medical personnel by the danger of needle stick injury.
Because the present invention has adopted needle holder and the incorporate structure of blood taking needle to make the present invention in use, no longer need the nurse in rule of operation, blood taking needle to be connected with the needle holder urceolus to screw installation, unscrew the process of taking off, reduce operation link, eliminated the risk of needle stick injury.
Because type of the present invention has adopted pocketed springs outside needle stand, and cock is inlaid in the conehead root, utilize two hanged hooks on fan-shaped perforate of tool symmetry and the needle stand spring support platform to form the structure of mutual locking, make after blood sampling finishes, use thumb to stir cock, can remove locking restriction rapidly, the spring of needle stand and periphery thereof is discharged the needle stand hanged hook, discharge under the resilient force of back at spring, needle stand drives the rapid retraction of blood taking needle and enters the needle holder urceolus; Simultaneously, the crimping of needle stand lower end abduction fin is spacing by the prominent ridge of the annular of urceolus hypomere, and blood taking needle needle tubing and collection blood pin and needle stand, spring all are shielded in the space of urceolus.Have disposable use, ruin automatically after the use type, syringe needle automatically retraction enter in urceolus, the sheath and conductively-closed, eliminate medical personnel by the generation of needle stick injury.Can also alleviate nurse's work, increase work efficiency.
(4) description of drawings
Accompanying drawing 1 is traditional split type vein blood taking needle structural representation;
Accompanying drawing 2 is common pen type blood taking needle structural representations;
Accompanying drawing 3 is overall structure decomposing schematic representations of pen type safety blood taking pin of the present invention;
Accompanying drawing 4 is needle stand structural representations of pen type safety blood taking pin of the present invention;
Accompanying drawing 5 is tap structure sketch maps of pen type safety blood taking pin of the present invention;
Accompanying drawing 6 is pen type safety blood taking pin outer tube structure sketch maps of the present invention;
Accompanying drawing 7 is self-contained structural representations of pen type safety blood taking pin of the present invention;
Accompanying drawing 8 is that pen type safety blood taking pin of the present invention uses the back needle tip retracts to enter the outer tube inner chamber view of needle holder.
(5) specific embodiment
Accompanying drawing 1 is traditional split type vein blood taking needle, its structure is the flexible pipe at venoclysis needle, among the figure, venipuncture needle A1 structure is identical with function and venoclysis needle, on the other end tail end Connection Block A4 of intravenous needle flexible pipe A3, be connected with a single-ended collection blood pin A5, the outer rim of this needle stand A5 has the spiral silking.In use, the rotation of collection blood pin need be fixed on the needle holder outer cylinder front end; This pin is in blood collection procedure, because blood taking needle connection flexible pipe is longer, and about 20 centimetres, remaining blood in the venipuncture needle of front end and the flexible pipe can not all suction be clean by vacuum tube, in the process that blood taking needle and flexible pipe take off, blood can trickle everywhere, contaminated environment or human body; Owing to multiple reason, nurse and waste treatment personnel's finger also is very easy to be stabbed by needle point, has the needle stick injury risk; Consequence is extremely serious.
By accompanying drawing 2 as can be known, traditional pen type blood taking needle, its structure is a minute hand B who connects needle stand; Its two ends all have sharp cutting edge; The middle hypomere of needle tubing is bonded and fixed in the needle stand B1, and its front end (long end) has blood resistance unit B3, two ends that the protective casing protection is arranged for venipuncture needle B2, rear end (short end) for collection blood pin B4, collection blood wire surface in addition; During use, the blood taking needle rotation is fixed on the needle holder outer cylinder front end; To using the disposal of the depleted blood taking needle in back, process needs the nurse once more with blood taking needle front end sheath as described above, is enclosed within the blood taking needle appearance again, and needle body is unclamped in rotation then, and blood taking needle is taken off from needle holder, blood taking needle is discarded in the waste holder again; In this process because nurse's both hands overlap crossed work again, clinical in (can owing to multiple reason), nurse's finger is easily stabbed by needle point, make pen type blood taking needle rule of operation have serious needle stick injury risk.
Accompanying drawing 3 is overall structure decomposing schematic representations of pen type safety blood taking pin of the present invention, and as seen from the figure, pen type safety blood taking pin of the present invention is made up of several lower parts: needle tubing 1, spring 2, needle stand 3, blood resistance unit 4, cock 5, urceolus 6, sheath 7.
Accompanying drawing 4 is needle stand structural representations of pen type safety blood taking pin of the present invention.The front end of needle stand 3 center has a through hole 3a, the middle hypomere of needle stand that one ring-spring support platform 3c is arranged, and the edge of needle stand lower end perforate is to turn up and expands 3b; In the outer rim of support platform 3c the arcuated fin piece 3e of symmetric two abductions is arranged, ultimate range between its span (diameter) equals urceolus 5 internal diameters; At the nearly middle part of spring support platform 3, the hanged hook 3d of two vertical symmetry is arranged, the direction of its hook is counterclockwise or clockwise.
Accompanying drawing 5 is outer tube structure sketch maps of pen type safety blood taking pin of the present invention: urceolus 5 rounded barrel-like structures, its inner hollow, the outside crimping of urceolus lower edge forms the handle 5e that shakes hands, there is circular conehead the urceolus upper end, the tapered 5c that expands of conehead hypomere, conehead front end central authorities are porose, and the aperture is reduced into 5a, and the hole communicates with outer tube inner chamber; On the urceolus lateral wall of conehead basilar part, have a pair of scallop hole 5b with the axle center symmetry, be shaped on the prominent ridge 5d of an annular on the hypomere inwall of urceolus.
Accompanying drawing 6 is structural representations of the closing cock 6 of pen type safety blood taking pin of the present invention.By accompanying drawing 6-1., accompanying drawing 6-2., 6-3. as can be known, cock is the umbrella shaped pieces of a cap-like structure, its central porose 3a, this bore dia equal the conehead basilar part external diameter of urceolus 5 front ends but expand the 5c of portion diameter less than the conehead taper.There are two and the symmetric scallop hole 6b in the center of circle in the cock 6 centre bore 6a outside, and it is corresponding up and down with outer cylinder front end perforate 5b, rotation cock sheet 6, hole 6b can lock mutually with needle stand hanged hook 3d, in a side of cock sheet, a plectrum 6c who sees downwards or extend is upward arranged, be convenient to stir the cock sheet.
Accompanying drawing 7 is overall structure sketch maps of pen type safety blood taking pin of the present invention; As seen from the figure: puncture needle tubing 1 is bonded in the needle stand 3, epimere is long slightly, be venipuncture needle 1a, it is short slightly that the hypomere of needle tubing exposes the part of needle stand, be collection blood pin 1b, the two length differs more than 2 times, and the circular disk 3c of hypomere goes up bearing spring 2 in the needle stand 3,3b of portion and blood resistance unit 4 end 4a sockets are expanded in the lower end of needle stand, and blood resistance unit 4 will collect blood pin 1b and be wrapped in the blister cavities fully; Needle stand 3 is positioned at the inner chamber epimere of urceolus 5, and two hanged hook 3d that the middle hypomere spring support platform 3c of needle stand 3 goes up nearly middle part can be fixing by two scallop hole 6b rotations on the cock sheet 6 after passing two hole 5b of outer cylinder front end.Spring 2 is compressed be fixed in the space that the taper hole 6a by support platform 3c and outer cylinder front end forms.The conehead 5a driving fit suit of sheath 7 and outer cylinder front end covers puncture needle 1 appearance.There is a plectrum 6c along the outer tube side wall extension cock side, is convenient to rotation, discharges the locking to needle stand 3, starts function of safety protection.
More than constitute the overall structure of pen type safety blood taking pin of the present invention.
Accompanying drawing 8 be pen type safety blood taking pin of the present invention after use, needle structure is ruined type, needle tubing and needle stand and is retracted to the structural representation that is protected fully in the urceolus; In conjunction with the accompanying drawings 7 and accompanying drawing 8, when pen type safety blood taking pin of the present invention need use, pull up the sheath 7 of blood taking needle front end earlier, according to the venipuncture routine, tie up the vein tourniquet, treating partly sterilised of puncture portion, hand-held safety blood taking pin urceolus 5 of the present invention, row vein puncture, wait to puncture successfully after, hold fixedly venipuncture needle 1a position of urceolus 6 (needle holder), an other hands is taken vacuum test tube, the plug end is inserted urceolus 5 tail end cavitys, and thumb is pressed the vacuum test tube bottom, and four refer to separately control urceolus crimping 5e, finger is firmly held mutually, vacuum test tube is inserted urceolus 5, make collection blood pin 1b puncture blood resistance unit 4 and pass vacuum test tube front end plug, negative pressure of vacuum can enter vacuum test tube with the suction of vein blood vessel inner blood in the blood taking tube.After blood volume to be collected reaches requirement, extract blood taking tube; If desired, can above-mentioned repeatedly action, realize the collection of multitube venous blood.When treating that blood sampling finishes,, extract vein blood taking needle, local pressing type hemostasia according to the blood sampling operating routine.Pick up the blood taking needle holder urceolus on the other hand, stir cock sheet 6c with thumb, make it to rotate along the outer cylinder front end conehead, make the locking of the hanged hook 3d disengaging faucet hole 6b of needle stand 3, hanged hook 3d breaks away from decline, spring 2 is discharged, and drive needle stand 3, needle tubing 1, blood resistance unit 4 together enter in the space of urceolus 5.
Because distance equals the diameter of outer tube inner chamber between needle stand abduction fin 3e, but diameter less than the prominent ridge 5d of wall circular in the urceolus hypomere, so, when needle stand lower end fin contact outer tube inner wall annular is dashed forward ridge 5d, can make needle stand 3 and collection blood pin 1b can not slide to urceolus 5 bottom outer rims.Because spring 2 length are greater than the length of needle stand support platform 3b to venipuncture needle point 1a; Urceolus length is greater than needle tubing length; The prominent ridge 5d of ring-type to the distance of urceolus lower edge greater than the length that collects blood pin 1b.Above structure and condition owing to the effect of spring 2, can not expose to outside the urceolus needle tubing needle point again after having guaranteed that the needle tubing retraction enters in the space that urceolus and sheath form.
Claims (6)
1. pen type safety blood taking pin is made up of needle tubing (1), spring (2), needle stand (3), blood resistance unit (4), urceolus (5), cock (6) and sheath (7); It is characterized in that: bonding needle tubing (1) in needle stand (3) central authorities porose (3a), the needle stand hypomere has spring support platform (3c), its periphery pocketed springs (2), the nearly middle part of support platform (3c), symmetry has two hanged hooks (3d) vertically upward; The front end of urceolus (5) has conehead, the conehead endoporus dwindles (5a) and communicates with urceolus (5) inner chamber at opening part, symmetry has perforate (5b) on the outer tube wall of conehead basilar part, cock (6) central authorities porose (6a), and symmetric two scallop holes (6b) are arranged, there is a plectrum (6c) at the edge of cock (6).
2. according to the said pen type safety blood taking of claim 1 pin, it is characterized in that: the hypomere of needle stand (3) has a spring support platform (3c), platform diameter is less than spring (2) inner ring diameter, the hanged hook (3d) that two vertical symmetry are arranged on the support platform (3c), perforate outer rim in needle stand lower end is expands (3b), there is a pair of downward abduction arcuated fin piece (3e) at the edge of the spring support platform (3c) of needle stand, and two fin spacings (diameter) equal the intracavity diameter of urceolus.
3. according to the said pen type safety blood taking of claim 1 pin, it is characterized in that: there is a circular hole (3a) in the central authorities of cock (6), and its aperture equals urceolus conehead basilar part external diameter; There are symmetric two fan-shaped perforates (6b) on the surface of cock (6) along centre bore, and hanged hook (3d) passes outer cylinder front end perforate (5b) and cock perforate (6b) and by cock (6) locking that spins; There is a plectrum 6c side of cock (6).
4. according to the said pen type safety blood taking of claim 1 pin, it is characterized in that: the front end of urceolus (5) has conehead, conehead porose (5a), the conehead hypomere is tapered expands (5c), there are symmetric two perforates (5b) in the axle center, outer tube wall upper edge, both sides of conehead basilar part, urceolus (5) lower end crimping becomes holds handle (5e), the hypomere inwall of urceolus has the prominent ridge (5d) of an annular, and the prominent ridge (5d) of annular arrives the length of the distance of urceolus (5) lower edge greater than collection blood pin (1b).
5. according to the said pen type safety blood taking of claim 3 pin, its spy is characterised in that: cock (6) is installed in the basilar part of urceolus (5) conehead, cock 6 central bore (6a) diameter equals conehead basilar part external diameter, but expands the diameter of (5c) portion less than the taper of conehead hypomere.
6. according to the said pen type safety blood taking of claim 1 pin, it is characterized in that: the length of spring (2) is greater than the distance of spring support platform (3c) to puncture needle (1a) point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105661854A CN102106735A (en) | 2010-11-29 | 2010-11-29 | Pen type safety blood taking needle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105661854A CN102106735A (en) | 2010-11-29 | 2010-11-29 | Pen type safety blood taking needle |
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| CN102106735A true CN102106735A (en) | 2011-06-29 |
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| CN2010105661854A Pending CN102106735A (en) | 2010-11-29 | 2010-11-29 | Pen type safety blood taking needle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680345A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Safety protection mechanism for blood taking needle |
| CN111939072A (en) * | 2020-08-17 | 2020-11-17 | 遵义医科大学附属医院 | Needle head protection device |
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| CN201182605Y (en) * | 2008-02-21 | 2009-01-21 | 明辰股份有限公司 | Automatic retracting type safety hemostix |
| CN101361661A (en) * | 2008-08-01 | 2009-02-11 | 徐昊华 | One-time operation safe vacuum blood-sample acquisition needle |
| CN101836864A (en) * | 2009-03-20 | 2010-09-22 | 萨克哈拉姆D.马赫卡 | Retractable needle-safety blood sampling device |
| CN201912093U (en) * | 2010-11-29 | 2011-08-03 | 张蔚楠 | Safe pen type blood taking needle |
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- 2010-11-29 CN CN2010105661854A patent/CN102106735A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317426A (en) * | 1992-05-25 | 1993-12-03 | Haruhito Matsumoto | Needle push-pull device for injection/blood sampling apparatus |
| CN1137228A (en) * | 1993-12-16 | 1996-12-04 | 托马斯·J·肖 | Retractable fluid collection device |
| CN1368865A (en) * | 1999-08-11 | 2002-09-11 | 创造性塑料制品技术有限责任公司 | Retactable blood collection device |
| US6171284B1 (en) * | 2000-03-15 | 2001-01-09 | Wang-Hsiang Kao | Syringe needle cover structure |
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| CN101361661A (en) * | 2008-08-01 | 2009-02-11 | 徐昊华 | One-time operation safe vacuum blood-sample acquisition needle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680345A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Safety protection mechanism for blood taking needle |
| CN111939072A (en) * | 2020-08-17 | 2020-11-17 | 遵义医科大学附属医院 | Needle head protection device |
| CN111939072B (en) * | 2020-08-17 | 2023-09-19 | 遵义医科大学附属医院 | Needle head protection device |
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Application publication date: 20110629 |