CN202497155U - Improved pen-type safe blood taking needle - Google Patents
Improved pen-type safe blood taking needle Download PDFInfo
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- CN202497155U CN202497155U CN2011205033179U CN201120503317U CN202497155U CN 202497155 U CN202497155 U CN 202497155U CN 2011205033179 U CN2011205033179 U CN 2011205033179U CN 201120503317 U CN201120503317 U CN 201120503317U CN 202497155 U CN202497155 U CN 202497155U
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Abstract
An improved pen-type safe blood taking needle is formed by a sheath, an outer cylinder, a needle seat, a needle pipe, a spring and a blood resistance sleeve. A front end of the outer cylinder is provided with a conehead. An inner bore of the conehead is communicated with a lumen of the outer cylinder. A lower segment of the needle seat is provided with a spring support platform and three extended fins whose largest diameter is equal to or less than an inner diameter of the outer cylinder. One of the fins is shortened. A fin bottom surface can be supported and locked by a windowing bottom edge of a sidewall of a conical pipe cylinder on the front end of the outer cylinder and the spring is compressed in the inner bore of the conehead. The outside of the outer cylinder windowing is covered by a button contact plate, which carries out protection on the windowing. After blood sampling is completed, the button contact plate only needs to be pressed and a trigger button can be pressed so as to escape from the locking of the windowing bottom edge. Restriction to the needle seat is removed. The needle seat is released and the spring is reset so as to drive the needle pipe to retract into the lumen of the outer cylinder. A needle point is automatically deviated so as to prevent exposure again. The needle possesses a simple structure. Usage is convenient, safe and reliable. The needle is disposable. The needle point is automatically contracted so that protection to medical workers is realized and acupuncture damages are eliminated.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, a kind of specifically modified model pen type safety blood taking pin with needle holder, and it cooperates with vacuum test tube, is used for the gatherer process of venous blood BIAO and BEN.
Background technology
Collection to blood preparation has following three kinds of approach usually: (1) subcutaneous blood sampling: be used for the differential counting of blood cell component is detected more; Subcutaneous (real core or the prismatic needle point) blood taking needles that use more; (2), venous blood collection: be used for blood cell, nosetiology, immunology, hereditism and other related discipline indexs are carried out detailed detection, in clinical, use very extensively, use pen type, split type vein (hollow) blood taking needle or syringe more; (3), arterial blood drawing, how in critical emergency case, aterial blood gas indexes following is detected, use lessly, use arterial blood drawing perforator (band pin) to gather more.
In venous blood collection, various countries clinical medical and nursing personnel all use pen type blood taking needle, split type vein blood taking needle and syringe at present; This utility model 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 is arranged.During use, the blood taking needle rotational fixation in the needle holder outer cylinder front end, is implemented 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 usually is prone to stabbed by needle point, and needle stick injury takes place, and causes the infection or the propagation of blood borne disease, like hepatitis C, 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.It in use; Also need will collect blood pin rotational fixation in the needle holder outer cylinder front end, hand-held venipuncture is implemented puncture to 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, make the remaining blood in venipuncture needle and the flexible pipe, in the process that blood taking needle and flexible pipe take off, blood can trickle everywhere, and contaminated environment or human body cause the transmission of disease maybe; In clinical position, nurse and waste treatment personnel's finger also is very easy to hindered by the blood taking needle spine, infects blood borne disease because of needle stick injury causes; Consequence is extremely serious.
Disposable syringe: in developing country, among basic hospital and all inpatients, usually before venous transfusion, medical personnel can use venoclysis needle to carry out venipuncture earlier; After the success, syringe conehead and venoclysis needle back end interface are pegged graft venous blood samples; And then transfer in the blood taking tube, (usually repeated multiple times is accomplished the collection of multitube BIAO and BEN;) this process need opens the vacuum test tube plug, discharge blood and transfer in the blood taking tube, in conehead and the grafting of transfusion needle interface and the process that in blood taking tube, shifts; Usually can pollute finger, have certain risk, and complex operation.
Add up according to the American National medical department: the pricking wound that occurs in injection puncture and blood collection procedure accounts for 26% of needle stick 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 staff's of the contact blood source disease that U.S. occupational safety Department of Health formulates operation standard wherein requires: in injection, puncture procedure rules, firmly stop: the behavior that hands takes off syringe needle, bending syringe needle, leaves the broken needle head, overlaps needle guard 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 venous blood 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.
Domestic existing pen type safety blood taking pin scheme is disclosed, as: ZL:201010578014.3, ZL:201020649838.0; And ZL:201010622685.5; Above-mentioned several kinds of technical schemes; Can be in blood collection procedure; Can the puncture needle retraction be got in the urceolus; Effectively avoid needle stick injury, eliminate the safe of blood borne disease infection risk but also come with some shortcomings: needle tip can also be exposed from the urceolus taper hole under external force, has the possibility of stabbing other people.The present technique scheme designs for overcoming above-mentioned deficiency.
Summary of the invention
This utility model is exactly the solution that proposes to 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, cooperates vacuum test tube to be used for the gatherer process to venous blood.
This utility model is realized through following scheme: a kind of modified model pen type safety blood taking pin, form by needle tubing, spring, needle stand, blood resistance unit, urceolus, sheath; It is characterized in that: needle stand central porose, in bonding needle tubing, hypomere has the spring support platform in the needle stand; Its periphery pocketed springs, the outer rim symmetry of spring support platform have three arcuated fin pieces of abduction downwards, and the hypomere inwall has the prominent ridge of annular in the urceolus; The front end of urceolus has conehead; Conehead has endoporus and dwindles and communicate with outer tube inner chamber at opening part, the outer cylinder front end outer wall be conical change to dwindle with conehead be connected, on the tapered sidewalls surface of urceolus one fan-shaped windowing arranged.The front end of needle stand has through hole; The edge of needle stand lower end perforate is to turn up and expands, and is bonded with puncture needle tubing and collection blood needle tubing in the through hole, and the middle hypomere of needle stand has the spring support platform; The outer rim symmetry of spring support platform has three downward abduction arcuated fin pieces; Wherein the maximum gauge of two fins is equal to or less than the internal diameter of urceolus, and the plane, base of two fins and the vertical plane in needle stand axle center have an angle, and angle is about 2 °; The upper edge of another one abduction fin prolongs, shorten the lower edge, makes its outer rim maximum radius less than the urceolus internal diameter, is shaped on the fan-shaped cambered surface of a layer thickness about 1.0-2.0mm even covering of the curved surfaces of the 3rd abduction fin, constitutes and triggers button; There are a plurality of vertical bar rope projections on surface triggering button, and the distance that the bar rope projects into the needle stand axle center is equal to or less than the radius of outer tube inner chamber; Trigger the bottom surface of button, can be supported, and hidden by the window button touch panel in the outside of urceolus by the base that outer cylinder front end is windowed; The length T of the most advanced and sophisticated distance X of puncture needle tubing less than spring arrived on abduction fin base, simultaneously also less than the height W of urceolus taper hole lower end to the annular ridge of dashing forward of outer tube inner chamber.The middle hypomere of needle tubing has a side opening, and its epimere is long to be puncture needle, and hypomere is short to be processed with stainless steel material for collection blood pin, and puncture needle and collection blood pin can be one, also can be splits.
Urceolus is a tubular structure, its inner hollow, and the outside crimping of urceolus lower edge forms handle; Outer cylinder front end has conehead; Conehead is porose and communicate with outer tube inner chamber, and the aperture dwindles in the upper end and forms the constriction step, and the following diameter of bore in aperture is greater than the external diameter of spring; Urceolus hypomere inner chamber has the prominent ridge of an annular, and the internal radius that the prominent ridge of annular forms is less than the diameter of needle stand hypomere abduction fin.With the outer cylinder front end taper socket sidewall of urceolus handle axis; One fan-shaped windowing arranged, and louver angle is between 30-60 °, and the outward flange of windowing has slight projection; The outer rim on base of windowing has one outwards, to the thin slice of top; Its size approximates the area of windowing, and becomes the button touch panel, and the prominent ridge of annular is to the distance Y at the handle edge length Z greater than blood resistance unit.The length L of spring is greater than the distance W of spring support platform to the puncture needle needle point.
Operate with conventional venous blood collection method: take off the front end sheath, the row vein puncture is after the success; The right hand is held fixedly venipuncture needle position of urceolus, and left hand is taken vacuum test tube, and the rubber plug for vacutainer end is inserted urceolus tail end cavity; Thumb is pressed the vacuum test tube bottom, and four refer to separately control urceolus crimping handle, and finger is firmly held tight in one's hands each other; Vacuum test tube is inserted urceolus, make the broken blood resistance unit of collection blood acupuncture and pass vacuum test tube front end plug, the negative pressure of vacuum in the blood taking tube can get into vacuum test tube with the venous blood suction; When treating that negative pressure disappears, that is gather blood volume when reaching predetermined the requirement, extract blood taking tube; If desired, can repeat above-mentioned action, realize the venous blood collection of multitube.When treating that blood sampling finishes, extract vein blood taking needle, on the other hand local pressing type hemostasia; Simultaneously with the downward pressing keys touch panel of this hands thumb that grips urceolus; Making it to window along the outer cylinder front end arc moves inward downwards, transmits pressure through the bar rope triggering button of needle stand hypomere abduction is moved inward, and makes it break away from urceolus taper socket sidewall the window support and the restriction on base; Spring is discharged; Under acting force of the spring, drive needle stand, needle tubing, blood resistance unit together rapidly retraction get in the space of urceolus, until the abduction fin of needle stand by the prominent ridge restriction of the annular of outer tube inner wall and stop in the urceolus.Because there are angle in the plane, base of two abduction fins of needle stand hypomere and the vertical plane of needle stand axis; Under acting force of the spring; Needle stand will run-off the straight on the prominent ridge plane of the annular of outer tube inner wall; Thereby make puncture needle be offset to the sidewall of conehead endoporus, even make have unexpected external force to act on the set pin, needle tip can not expose to outside the urceolus conehead through taper hole once more.Eliminate medical personnel by the danger of needle stick injury.
Because this utility model has adopted needle holder and the incorporate structure of blood taking needle to make this utility model in use; No longer need the nurse in rule of operation, blood taking needle to be connected the installation of screwing, to unscrew the process of taking off with the needle holder urceolus; Reduce operation link, eliminated the risk of needle stick injury.
Because this utility model has adopted needle stand outside pocketed springs and needle stand abduction fin and triggering button to be supported the structure of chimeric locking by the urceolus tapered sidewalls base of windowing; After use; Trigger button through pressing keys touch panel, displacement; Start the security protection characteristic, can make Paracentesis needle holder ruin type, syringe needle and bounce back the interior also conductively-closed of entering urceolus, elimination medical personnel automatically by the generation of needle stick injury.Because this utility model has adopted transparent needle stand; And have side opening at the middle hypomere tube wall of puncture needle tubing, can make after puncture vein blood vessel success, in case reflux to blood; Amplification reflection through the needle stand arc surface; Can observe blood rapidly and reflux, show and puncture successfully, also can increase work efficiency.
Description of drawings
Fig. 1 is the overall structure decomposing schematic representation of a kind of modified model pen type of this utility model safety blood taking pin;
Fig. 2 is the outer tube structure sketch map of a kind of modified model pen type of this utility model safety blood taking pin;
Fig. 3 be a kind of modified model pen type of this utility model safety blood taking pin 3-D view;
Fig. 4 is the 3-D view of the needle stand of a kind of modified model pen type of this utility model safety blood taking pin;
Fig. 5 is respectively the structural representation of the needle stand of a kind of modified model pen type of this utility model safety blood taking pin;
Fig. 6 is the integral assembling structure sketch map of a kind of modified model pen type of this utility model safety blood taking pin;
Fig. 7 is that a kind of modified model pen type of this utility model safety blood taking pin finishes in collection of specimens, and after safety device started, puncture needle self-destruction retraction got into the structural representation in the urceolus.
The specific embodiment
Fig. 1 is the overall structure decomposing schematic representation of a kind of modified model pen type of this utility model safety blood taking pin; Can know that by figure a kind of modified model pen type of this utility model safety blood taking pin is by forming with the lower part: needle tubing 1, spring 2, needle stand 3, blood resistance unit 4, urceolus 5, sheath 6.The front end of needle tubing 1 has sharp cutting edge, is venipuncture needle 1a, and also there is sharp cutting edge the rear end, is collection blood pin 1b, and the middle hypomere of needle tubing has a side opening 1c; Blood resistance unit 4 is the blind pipe of a hollow, and its front end oral area tube wall thickens and is 4a, processes with elaxtic seal (rubber or silica gel, elastoplast); Spring 2 usefulness stainless steel materials are processed, and its length is L, and external diameter is T.Urceolus 5 is a hollow pipe, and there is conehead front end center, has conical socket to be connected between conehead and the urceolus; The hands handle that the urceolus lower end has crimping to form; Sheath 6 is the hollow blind pipe.
Fig. 2, Fig. 3 are respectively the structural representation and the 3-D views of the urceolus of a kind of modified model pen type of this utility model safety blood taking pin: can be known urceolus 5 rounded tubular structures, its inner hollow by Fig. 2, Fig. 3; The outside crimping of urceolus 5 lower edge forms handle 5e, and there is circular conehead the urceolus upper end, the central porose 5a in conehead upper end; The hole communicates with outer tube inner chamber, and the aperture dwindles at front end and forms the constriction step, and the following part diameter of bore in conehead aperture is slightly larger than spring external diameter T; See Fig. 2, Fig. 3, the front end side wall of urceolus is cone deformationization dwindles, until being connected with the conehead external diameter; Form a conical socket; With the socket sidewall plane of handle 5e axis on, have an about 30-60 ° the fan-shaped 5b of windowing, and communicate with outer tube inner chamber; The periphery of 5b of windowing has the slight projection 5f of outside top, and the base of the 5b that windows is positioned at top, conical socket sidewall base 2-3mm; Having an area to approximate the thin plate 5c that windows above outside the lateral of feather edge of windowing, constitute the protection to the 5b that windows, also is when starting security feature needle stand to be triggered the button touch panel 5c that button is exerted pressure; At the hypomere inwall of urceolus 5, the prominent ridge 5d of an annular is arranged, the prominent ridge 5d upper limb of annular is to the distance Y of the crimping handle 5e length Z greater than blood resistance unit 4; The internal radius that the prominent ridge 5d of annular forms is less than the maximum gauge of needle stand 3 hypomere abduction fin 3e.The prominent ridge 5d upper limb of annular is W to the distance of urceolus conehead endoporus lower end, and this distance is greater than the distance X of needle tip to needle stand abduction fin base.
Fig. 4, Fig. 5 are respectively the 3-D view and the main partial sectional views of looking of the needle stand of a kind of modified pen type of the utility model safety blood taking pin; Fig. 5 is on the basis of Fig. 4, along the P direction of arrow, is the half sectional view at center with the axis; Can know that in conjunction with Fig. 4, Fig. 5 the front end of needle stand 3 center has a through hole 3a, the stage casing of needle stand that one spring support platform 3d is arranged, the edge of needle stand lower end perforate is to turn up and expands 3f; In the outer rim of support platform 3d the arcuated fin piece of three downward abductions of equally distributed symmetry is arranged, wherein the maximum gauge of two fin 3e is equal to or slightly less than urceolus 5 internal diameters, but greater than the inner edge diameter of the prominent ridge 5d of outer tube inner wall annular; The vertical plane of the plane, base of two fin 3e and needle stand 3 axis has an angle, and angle is about 2 °.The upper edge of another one abduction fin prolongs, shorten the lower edge, makes its outer rim maximum radius less than the urceolus internal diameter, evenly is shaped on the fan-shaped cambered surface of a layer thickness about 1.0-2.0mm at the curved surfaces of this abduction fin, constitutes and triggers button 3b; There are a plurality of vertical bar rope projection 3e on surface triggering button 3b; The size that triggers button 3b is corresponding with the 5b that windows of the anterior taper socket of urceolus sidewall, but overall dimensions is slightly less than the 5b size of windowing, and certain interval is arranged each other; The plane, base of the triggering button 3b base planar support of 5b of can being windowed forms the locking to needle stand 3; At the hypomere of needle stand endoporus 3a, diameter of bore is fusiformis and enlarges 3g, and needle stand is processed with transparent material.
Fig. 6 is the integral assembling structure sketch map of a kind of modified model pen type of this utility model safety blood taking pin; Can be known by figure: puncture needle tubing 1 is bonded in the needle stand 3; Epimere is long slightly, is venipuncture needle 1a, and 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 about two times, at the middle hypomere of needle tubing one side opening 1c is arranged, and overlaps with the fusiformis expansion space 3g of needle stand hypomere endoporus; The spring support platform 3d of hypomere in the needle stand 3, its appearance suit and bearing spring 2, the end 4a socket of the 3b of the portion of expanding of needle stand lower end and blood resistance unit 4, blood resistance unit 4 will collect blood pin 1b and be wrapped in fully in its blister cavities; Needle stand 3 is positioned at urceolus 5 inner chamber epimeres, triggers button 3b and is locked in the 5b that windows of urceolus taper socket sidewall; A plurality of rope projection 3c that trigger the surface of button 3b protrude in the edge of windowing, and trigger the base of button 3b and conflict each other with the base of the 5b that windows, form the locking that triggers button 3b and needle stand 3 and spacing; Simultaneously spring 2 is compressed in the urceolus conehead inner chamber; Triggering button key 3b then disappears in the guard ring that the 5b periphery projection 5f that windows of urceolus 5 front end taper sockets forms, to avoid transporting the false triggering in carrying or the operating process.Puncture needle 1a cutting edge and the outer cylinder front end tapered sidewalls 5b plane of windowing is consistent; Puncture needle 1a appearance has sheath 6 to cover, the port medial surface of sheath 6 and conehead appearance close-fitting, but can pull out.
Fig. 7 is a kind of modified model pen type of this utility model safety blood taking pin, finishes in collection of specimens, and after safety device started, puncture needle self-destruction retraction got into the structural representation in the urceolus; In conjunction with Fig. 4, when needing to use, pull up the sheath 6 of blood taking needle front end earlier; Conventional according to venipuncture, tie up the vein arm-rest belt, after treating the local skin sterilization of puncture portion; The right hand is held urceolus 5, with the puncture of puncture needle 1a row vein, and the successful back (can see the phenomenon of vein blood back) of waiting to puncture on transparent needle stand surface; The right hand is held fixedly venipuncture needle 1a position of urceolus 5, and left hand is taken vacuum test tube, and the rubber plug for vacutainer end is inserted urceolus 5 tail end cavitys; Thumb is pressed the vacuum test tube bottom, and four refer to separately control urceolus crimping handle 5e, and finger is firmly held tight in one's hands each other; 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, the negative pressure of vacuum in the blood taking tube can get into vacuum test tube with the venous blood suction; When treating that negative pressure disappears, that is gather blood volume when reaching predetermined the requirement, extract blood taking tube; If desired, can above-mentioned repeatedly action, realize the venous blood collection of multitube.When treating that blood sampling finishes; Extract vein blood taking needle, local pressing type hemostasia is used the downward pressing keys touch panel of this hands thumb 5c that grips urceolus simultaneously on the other hand; It is mobile in the 5b that windows with the triggering button 3b of needle stand 3 to transmit pressure through bar rope 3c; Make its disengaging the window support and the restriction on 5b base, spring 2 discharges, under spring 2 active forces; Drive needle stand 3, needle tubing 1, blood resistance unit 4 together bounce back rapidly and get in the space of urceolus 5, are limited and stop in the urceolus by the prominent ridge 5d of the annular of urceolus 5 inwalls until the abduction fin 3e of needle stand 3.Because there are angle in the plane, base of two abduction fin 3e of needle stand hypomere and the vertical plane of axis; Under spring 2 active forces; Needle stand 3 will run-off the straight on the prominent ridge 5d plane of the annular of outer tube inner wall; Thereby make puncture needle 1a be offset to the sidewall of conehead endoporus, even make have unexpected external force to act on the set pin, needle tip can not expose to outside the urceolus conehead through the conehead endoporus once more.
More than constitute the overall structure of a kind of modified model pen type of this utility model safety blood taking pin.
Because the diameter of the abduction fin 3e of needle stand 3 is equal to or less than the diameter of outer tube inner chamber; But internal diameter greater than the prominent ridge 5d of wall circular in the urceolus hypomere; So; When needle stand lower end abduction fin 3e when dropping to the prominent ridge 5d of contact outer tube inner wall annular, can make needle stand 3 and collection blood pin 1b by the prominent ridge 5d restriction of the annular of urceolus 5 inwalls and stop in the urceolus.Because spring 2 length L are greater than the length X of needle stand abduction fin 3e base to venipuncture needle point 1a; Urceolus length is greater than needle tubing length; The prominent ridge 5d of ring-type is to the distance Y of the urceolus lower edge length greater than blood resistance unit; Annular ridge 5d upper limb arrives the distance X of needle stand abduction fin greater than needle tip to the distance W of urceolus conehead endoporus bottom; There are angle in the plane, base of three abduction fins of needle stand hypomere and the vertical plane of axis; After above structure and condition have guaranteed that the needle tubing retraction gets into urceolus, and, can not expose to outside the taper hole once more because the effect of spring 2 deflects the needle tubing needle point automatically.Make and the utlity model has safe, reliable, convenient, practical characteristics.
Claims (6)
1. modified model pen type safety blood taking pin is by needle tubing (1), spring (2), needle stand (3), blood resistance unit (4), urceolus
(5) and sheath (6) form; It is characterized in that: central porose (3a) of needle stand (3); In bonding needle tubing (1), hypomere has spring support platform (3d) in the needle stand, its periphery pocketed springs (2); The outer rim symmetry of spring support platform (3d) has three arcuated fin pieces of abduction downwards; The hypomere inwall has the prominent ridge (5d) of annular in the urceolus (5), and the front end of urceolus (5) has conehead, and conehead has endoporus (5a) and dwindles and communicate with urceolus (5) inner chamber at opening part; Urceolus (5) front end outer wall be conical change to dwindle with conehead be connected, fan-shaped windowing (5b) arranged on the tapered sidewalls surface of urceolus (5).
2. according to the said a kind of modified model pen type safety blood taking pin of claim 1; It is characterized in that: the front end of needle stand (3) has through hole (3a); The edge of needle stand lower end perforate is to turn up and expands (3f), is bonded with puncture needle tubing (1a) in the through hole (3a) and collects blood needle tubing (1b), and the middle hypomere of needle stand has spring support platform (3d); The outer rim symmetry of spring support platform (3d) has three downward abduction arcuated fin pieces; Wherein the maximum gauge of two fins (3e) is equal to or less than the internal diameter of urceolus (5), and the vertical plane of the plane, base of two fins and needle stand (3) axis has an angle, and angle is about 2 °; The upper edge of another one abduction fin prolongs, shorten the lower edge, makes its outer rim maximum radius less than the urceolus internal diameter, is shaped on the fan-shaped cambered surface of a layer thickness about 1.0-2.0mm even covering of the curved surfaces of the 3rd abduction fin, constitutes and triggers button (3b); There are a plurality of vertical bar rope projections (3e) on the surface of triggering button (3b), and bar rope projection (3e) is equal to or less than the radius of urceolus (5) inner chamber to the distance in needle stand (3) axle center; Trigger button (3b) bottom surface, can be supported, and the button touch panel (5c) in (5b) outside of being windowed by urceolus hides by the base of window (5b) of urceolus (5) front end tapered sidewalls; The length T of the most advanced and sophisticated distance X of puncture needle tubing (1a) less than spring arrived on two abduction fin (3e) bases, simultaneously also less than the height W of urceolus taper hole (5a) lower end to the annular ridge (5d) of dashing forward of outer tube inner chamber.
3. according to the said a kind of modified model pen type safety blood taking pin of claim 2; It is characterized in that: the middle hypomere of needle tubing (1) has a side opening (1c); Its epimere is long to be puncture needle (1a), and hypomere is short in collection blood pin (1b), processes with stainless steel material; Puncture needle (1a) and collection blood pin (1b) can be one, also can be splits.
4. according to the said a kind of modified model pen type safety blood taking pin of claim 1; It is characterized in that: urceolus (5) is a tubular structure, its inner hollow, and the outside crimping of urceolus (5) lower edge forms handle (5e); Outer cylinder front end has conehead; Conehead porose (5a) also communicates with outer tube inner chamber, and the aperture dwindles in the upper end and forms the constriction step, and the following diameter of bore in aperture is greater than the external diameter of spring (2); Urceolus hypomere inner chamber has the prominent ridge (5d) of an annular, and the internal radius that the prominent ridge (5d) of annular forms is less than the maximum gauge of needle stand hypomere abduction fin (3e); The prominent ridge (5d) of annular arrives the length Z of the distance Y at handle edge greater than blood resistance unit (4).
5. according to the said a kind of modified model pen type safety blood taking pin of claim 1; It is characterized in that: with the outer cylinder front end taper socket sidewall of urceolus handle axis, fan-shaped windowing (5b) arranged, louver angle is between 30-60 °; The outward flange of windowing has slight projection (5f); The outer rim on (5b) base of windowing has one outwards, to the thin slice of top, its size approximates (5b) area of windowing, and becomes button touch panel (5c).
6. according to the said a kind of modified model pen type safety blood taking pin of claim 1, it is characterized in that: the length L of spring (2) is greater than the distance W of spring support platform (3d) to puncture needle (1a) needle point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205033179U CN202497155U (en) | 2011-12-06 | 2011-12-06 | Improved pen-type safe blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205033179U CN202497155U (en) | 2011-12-06 | 2011-12-06 | Improved pen-type safe blood taking needle |
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| Publication Number | Publication Date |
|---|---|
| CN202497155U true CN202497155U (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205033179U Expired - Fee Related CN202497155U (en) | 2011-12-06 | 2011-12-06 | Improved pen-type safe blood taking needle |
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| CN (1) | CN202497155U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190921A (en) * | 2013-04-22 | 2013-07-10 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| WO2014169436A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Needle cylinder type vacuum blood sampler with jacking needle tube |
| CN105726042A (en) * | 2016-04-13 | 2016-07-06 | 浏阳市三力医用科技发展有限公司 | Disposable automatic rebounding type safe blood collecting needle |
| CN106390233A (en) * | 2016-08-30 | 2017-02-15 | 成都普什医药塑料包装有限公司 | Disposable automatic ejection type medical needle |
| CN109316195A (en) * | 2017-10-12 | 2019-02-12 | 江西丰临医疗科技股份有限公司 | Safe hemostix |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stent fenestration system |
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2011
- 2011-12-06 CN CN2011205033179U patent/CN202497155U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169436A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Needle cylinder type vacuum blood sampler with jacking needle tube |
| CN105208935A (en) * | 2013-04-16 | 2015-12-30 | 张建铭 | Needle cylinder type vacuum blood sampler with jacking needle tube |
| CN105208935B (en) * | 2013-04-16 | 2017-09-01 | 张建铭 | The syringe-type vacuum blood collector of pushing tow heparin tube |
| CN103190921A (en) * | 2013-04-22 | 2013-07-10 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| CN103190921B (en) * | 2013-04-22 | 2014-07-16 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| CN105726042A (en) * | 2016-04-13 | 2016-07-06 | 浏阳市三力医用科技发展有限公司 | Disposable automatic rebounding type safe blood collecting needle |
| CN106390233A (en) * | 2016-08-30 | 2017-02-15 | 成都普什医药塑料包装有限公司 | Disposable automatic ejection type medical needle |
| CN106390233B (en) * | 2016-08-30 | 2023-05-05 | 成都普什医药塑料包装有限公司 | Disposable automatic pop-up medical needle |
| CN109316195A (en) * | 2017-10-12 | 2019-02-12 | 江西丰临医疗科技股份有限公司 | Safe hemostix |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stent fenestration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160914 Address after: 274000 No. 277 East Bayi Road, Heze Development Zone, Shandong, China Patentee after: Shandong Nastya medicine science and Technology Co Ltd Address before: 200011, Huangpu District, Shanghai, Tibet 1558 South Road, No. 3 building, Shanghai Pharmaceutical Technology Development Co., Ltd. Patentee before: Zhang Yaping |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20181206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |