CN104665846A - Novel safe venipuncture needle - Google Patents
Novel safe venipuncture needle Download PDFInfo
- Publication number
- CN104665846A CN104665846A CN201510106258.4A CN201510106258A CN104665846A CN 104665846 A CN104665846 A CN 104665846A CN 201510106258 A CN201510106258 A CN 201510106258A CN 104665846 A CN104665846 A CN 104665846A
- Authority
- CN
- China
- Prior art keywords
- needle
- needle stand
- hollow pipe
- ring
- spring
- 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.)
- Pending
Links
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
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
-
- 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
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150595—Joining techniques used for protective means by snap-lock (i.e. based on axial displacement)
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a novel safe venipuncture needle which consists of a jacket, a needle tube, a needle bed, a spring, a casing, a hose and a Ruhr interface, wherein the needle tube is bonded in a front end hole of the needle bed; the spring is arranged on the outer surface of the needle bed; the needle bed and a lock ring on a cantilever of a casing wing oppositely act through an annular protrusion and a middle-section annular groove of the needle bed, so that the needle bed is automatically embedded and fixed in an upper-section inner cavity of a casing hollow tube; the spring is compressed in a space defined by the upper section of the needle bed and the upper section of the hollow tube of the casing; after use, the lock ring is deviated by pressing a key on the outer side of the casing; a release ring is moved to be superposed with the axis of the hollow tube of the casing, so the needle bed is separated from the locking of the lock ring; the spring releases, so the needle bed and the venipuncture needle rebound to enter the hollow tube of the casing; transverse bumps of the needle bed are limited by a barb at the lower end of the hollow tube and front and back limiting tilt bumps of an elastic convex edge, so a needle point cannot be moved forwards and exposed again; the venipuncture needle is completely covered, so that the risk of needle-stick injuries can be eliminated, and the transmission of blood-borne diseases is reduced.
Description
(1) technical field
The present invention relates to a kind of medical apparatus and instruments, to be a kind ofly specifically used for vein blood vessel (also can be the chamber for organizing) interior collection of specimens, a kind of new type of safe formula venipuncture needle to vein blood vessel infuse medical fluid, venous blood collection and venous transfusion process.
(2) background technology
People, when disease preventing and treating, usually through venipuncture, gather material in vein blood vessel, analytical control obtain Human Physiology or pathological state; Also usually through venipuncture, medicinal liquid be infused into vein blood vessel and arrive whole body, playing, compensate, substituting and therapeutical effect; In above diagnosis and treatment process, need a kind of venipuncture needle of hollow, realize getting involved the damage that has of human vein blood vessel, set up external to endovascular occasional passage.
At present, the various venipuncture needles (transfusion needle, blood transfusion needle, blood taking needle, live tissue puncturing check pin, remaining needle etc.) of domestic and international use can both meet above-mentioned requirements, but also all there is wretched insufficiency and defect: current venipuncture needle both domestic and external, after using in above environment, venipuncture needle needle point is exposed outside; The needle point of contact patient blood, often can cause needle stick injury to medical personnel and waste treatment personnel, causes infection and the propagation of blood borne disease.
The venoclysis needle of China's Clinical practice, structure is simple, and substantially do not possess safety guard, it is made up of needle tip shield, needle stand, venipuncture needle, flexible pipe; That medical personnel are by the major appliances of needle stick injury.According to China's medical statistics, scholarly journal is reported, clinical care practitioner up to more than 80%, is endangered extremely serious by the incidence rate of needle stick injury.
Existing multiple technologies scheme arranges protective casing in the appearance of puncture needle, artificially covers needle point.But be very inconvenience, and there is the possibility of accidentally injuring.Separately there is technical scheme to be utilize the recoil of spring power after compressing, needle stand and needle point are sprung in protective casing.But because complex structure, parts are a lot, and can not automated production, cause cost very high, be difficult to popularization and application.
In sum, clinic diagnosis in the urgent need to one above-mentioned in infuse medical fluid, blood transfusion, blood sampling, collection of body fluids process, can shield puncture needle, effectively avoid needle stick injury; Again there is features simple structure simultaneously, can the production automation be realized, safety vein puncture needle with low cost; Just at present, both at home and abroad still without any can with simple economy, practical safety, the technical scheme that automatic assembling produces can be realized be disclosed.
(3) summary of the invention
The present invention be exactly for above-mentioned at vein, organize chamber to puncture, realize transfusion, blood transfusion, deficiency existing for collect specimen process and the solution that proposes.Have safe, reliable, easy, practical, inexpensive, the production automation can be realized, clinical manipulation program can be simplified, the feature of needle stick injury of increasing work efficiency, eliminate; Specifically, it is a kind of automatic retracting type safety vein puncture needle with needle tip shielding, can be used for the process of the collection to venous blood, infuse medical fluid, blood transfusion, tissue specimen collection and treatment.
The present invention is achieved by the following scheme: a kind of new type of safe formula venipuncture needle, is made up of sheath, spring, needle tubing, needle stand, housing, flexible pipe, female Luer; It is characterized in that: needle tubing grafting cements in the hole of needle stand front end, spring housing in the appearance of needle stand epimere, by spring-compressed in the space that needle stand epimere and housing hollow pipe leading portion inner chamber are formed; The basic structure of housing is a hollow pipe; There is an abducent flap both sides of the hollow pipe of housing, and on the right side of housing, in flap, epimere has the hollow out of an irregular curve shape to crack, and right side (or left side) flap are partitioned into a cantilever in polyline shaped; In one end of the sensing hollow pipe of cantilever, be sequentially provided with two semicircular ring, far-end be lock ring, near-end be release ring.
The basic structure of described housing is a hollow pipe, and its front end perforate is reduced, and this aperture slightly larger than the external diameter of needle stand epimere, but is less than or equal to the internal diameter of spring; Have several latasuture at the hypomere of hollow pipe, have barb in the inner edge, lower end of hollow pipe, the minimum diameter of this barb is less than the external diameter of needle stand annular projection; Have semi-circular fluting in the side of hollow pipe hypomere, have an elasticity convex stupefied therebetween, this is convex stupefiedly extends internally downwards, makes its distance arriving hollow pipe axis bottom be less than the radius of the annular projection of needle stand.
There is abducent flap the both sides of described housing hollow pipe, have closed backplate to hold in the periphery of flap, have several projection to become trigger key outside the backplate of cantilever; In the direction of the sensing hollow pipe of cantilever, be sequentially provided with two semicircular ring, the internal diameter of the lock ring of far-end equals the external diameter of needle stand stage casing ring-shaped groove; The semi-ring internal diameter of the release ring of near-end is greater than the external diameter of the annular projection in needle stand stage casing; The width of needle stand ring-shaped groove is greater than the lock ring on cantilever and discharges the width of ring.
The external diameter of described needle stand epimere is less than the internal diameter of spring, and there is a ring-shaped groove in the stage casing of needle stand, has an annular projection at the upper limb of this groove, and the external diameter of annular projection is less than in hollow pipe, the internal diameter of hypomere; Have endoporus in the lower end of needle stand, this aperture slightly larger than or equal the external diameter of flexible pipe;
During use, operate: take off front end sheath with conventional venipuncture method, row vein punctures, and after success, implements the operations such as venoclysis medicinal liquid, venous blood collection, blood transfusion, biological fluid extracting and treatment.
At the end of above diagnosis and treatment, firmly pressing hull outside button, the lock ring of the cantilever front end of button offside is made to offset, make release ring move to above needle stand ring-shaped groove, remove lock ring to limit the build-in of needle stand, spring is discharged, and needle stand resilience can be entered hollow pipe inner chamber needle shield by acting force of the spring; Reach elimination needle stick injury, reduce the propagation of blood borne disease, avoid medical personnel by needle stick injury.
(4) accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present invention
Fig. 2 is the structural representation of needle stand of the present invention;
Fig. 3 is that housing of the present invention partly cuts open schematic diagram along axis;
Fig. 4 is the sectional structure schematic diagram along A1-A1 line of housing of the present invention;
Fig. 5 is the sectional structure schematic diagram along A2-A2 line of housing of the present invention;
Fig. 6 is the sectional view of complete molding tailing edge central axis horizontal direction of the present invention;
Fig. 7 be the present invention after a procedure, start the sectional structure schematic diagram along casing center axis longitudinal direction after safety device.
(5) detailed description of the invention
Fig. 1 is the overall structure decomposing schematic representation of a kind of new type of safe formula of the present invention venipuncture needle, as seen from the figure, a kind of new type of safe formula of the present invention venipuncture needle forms by with lower part: sheath 1, needle tubing 2, Compress Spring 3, needle stand 4, housing 5, flexible pipe 6, female Luer 7; There is sharp cutting edge the front end of needle tubing 2, forms the pointed tip of venipuncture needle; Flexible pipe 6 is the transparent hollow tube made with flexible material, is the passage of conveying medicinal liquid, blood, body fluid, its one end and the rear stomidium grafting cementation of needle stand 4, and one end is connected with female Luer in addition; Spring 3 is the stage clips be made up of stainless steel material, and after its release, length is greater than the length sum of puncture needle tubing 2 and needle stand epimere; Sheath 1 is the blind pipe of a hollow, is sleeved on needle stand front end appearance.
See Fig. 2, needle stand 4 is tubular structure, and the internal diameter of front end perforate is with puncture needle tubing 2 diametric fit and cement in hole by puncture needle tubing 2; The external diameter of the epimere 41 of needle stand 4 is less than the internal diameter of spring 3; There is an annular projection 42 in the stage casing of needle stand 4, and the lower edge of annular projection is a ring-shaped groove 43, and the width of ring-shaped groove is slightly larger than the width of the lock ring on housing; The lower end porose 44 of needle stand, the external diameter of this aperture >=flexible pipe 6.
Composition graphs 3, see Fig. 4, Fig. 5, housing 5 is by plastic material injection mo(u)lding, and its basic structure is a hollow pipe 51, and there is the hole 535 reduced the front end of hollow pipe, and this aperture is less than the external diameter of spring 3; But be greater than the external diameter of needle stand leading portion 41; The internal diameter of hollow pipe 51 is greater than the external diameter of spring 3, is also greater than the external diameter of needle stand 4; The flap 52 outwards extended is had in the both sides of hollow pipe 51, there is safe edge to hold (composition graphs 1) in the periphery of flap, flap on the right side of hollow pipe wider (being that left side flap is wider during left handedness), in the flap of right side, epimere has an irregular semi-circular to crack 54, flap is partitioned into a cantilever 55 in polyline shaped, the semicircular configuration being in homonymy that the part that (see Fig. 4) cantilever points to hollow pipe has two sequentially to arrange, far-end be lock ring 521, its internal diameter equals the groove external diameter of needle stand 4 ring-shaped groove 43; The semicircular configuration being in cantilever near-end is release ring 522; Discharge the external diameter of internal diameter slightly larger than needle stand 4 annular projection 42 of ring 522; Have an arc-shaped curved surface 523 at the hypomere of lock ring 521, the maximum inner diameter of this curved surface is greater than the external diameter of needle stand 4 annular projection 42; The axis of lock ring 521 and hollow pipe 51 axis coinciding; There is several projection in the backplate outer rim of cantilever 55, form trigger key 53; The epimere flap of housing and backplate thereof become puncture handle 56.See Fig. 5, in the lower end of hollow pipe 51, have more than one latasuture 532, on the lower end inner hole wall of hollow pipe, have the barb 533 reduced, the minimum diameter of barb is less than the external diameter of needle stand annular projection 42; On hollow pipe inwall above barb 533, there is the semi-circular groove of a hollow out, in this groove, have an elasticity convex stupefied 534; This elasticity is convex stupefiedly stretches out in hollow pipe, downwards, makes this convex lowest part of stupefied 534 be less than the radius of needle stand annular projection 42 to the distance in hollow pipe axle center;
Fig. 6 is the sectional structure schematic diagram of complete molding tailing edge central axis horizontal direction of the present invention; As seen from the figure, needle tubing 2 is bonded in the endoporus of needle stand 4 front end; Sheath 1 is sleeved on the epimere appearance of needle tubing 1 and housing 5 hollow pipe 51; One end of flexible pipe 6 is bonded in the endoporus 44 of needle stand 4 lower end; Other one end of flexible pipe 6 connects transfusion female Luer 7; Above-mentioned parts and mutually structure constitute a kind of safe venous puncture needle of the present invention; As seen from the figure, at the epimere appearance pocketed springs 3 of needle stand 4, then needle stand 4 inserts hollow pipe by the lower end endoporus of housing, because the barb 533 of hollow pipe hypomere has certain taper, its opening part diameter is greater than needle stand external diameter, and hollow pipe hypomere has several latasuture 532, hollow pipe hypomere can be made to expand outwardly, so needle stand, when installation is inserted, can enter hollow pipe by hollow pipe hypomere smoothly; When needle stand epimere enters lock ring 522 semi-ring endoporus, because this ring hypomere has arc-shaped curved surface, and this curved surface maximum inner diameter is greater than the annular projection external diameter of needle stand 4, so, under external force, needle stand can make it outwards be shifted through this curved surface, make the annular projection 42 of needle stand by this lock ring, once pass through, lock ring resets due to elastic properties of materials, fall in the ring-shaped groove 43 of needle stand 4, the width due to ring-shaped groove 43 is greater than the width of lock ring; The internal diameter of lock ring equals the external diameter of needle stand ring-shaped groove 43, so needle stand annular channel locks can be stopped build-in in this place by lock ring, can not move up and down.So, needle stand is installed in the epimere inner chamber of the hollow pipe 51 of housing 5, and spring 3 is compressed in the epimere inner chamber of hollow pipe 51;
Fig. 7 be the present invention after a procedure, start the sectional structure schematic diagram along casing center axis longitudinal direction after safety device.The present invention is when Clinical practice, conventional according to transfusion vein puncture, pulls out sheath, and after partly sterilised, row vein punctures, and after successfully seeing vein blood back, carries out the treatments such as venoclysis (medicinal liquid, blood sampling, collection of body fluids specimen, puncture), after treatment terminates, the trigger key 53 in pressure shell body 5 stage casing is pinched with finger, button is moved down, the lock ring 521 of cantilever 55 leading edge is moved forward, depart from the locking to needle stand 4 ring-shaped groove 43 gradually, the movement for release ring 522 in generation, along with the degree of pressing trigger key strengthens, the degree of release ring movement strengthens, the axle center of release ring 522 is overlapped completely with hollow pipe 51 completely, now, because the internal diameter discharging ring is greater than the external diameter of the annular projection 42 of needle stand 4, needle stand annular projection 42 is made to lose stop or locking, spring 3 under needle stand 4 and compressive state is released completely, under acting force of the spring effect, needle stand is with needle tubing 2 directive hollow pipe inner chamber rapidly, when needle stand directive hollow pipe hypomere, because hollow pipe lower ending opening inwall has several barb, and the minimum diameter of barb is less than the external diameter of needle stand annular projection 42, move outside the continuation that can stop needle stand, now because acting force of the spring makes needle stand be in hollow pipe lower end, the barb 533 of needle stand annular projection conflict needle stand hypomere inner chamber, (see Fig. 7) now elasticity convex stupefied 534 be in before needle stand annular projection 42, and to be less than the radius of needle stand 4 annular projection 42 to the distance in hollow pipe 51 axle center due to convex stupefied 534 lowest parts of elasticity, so, what elasticity convex stupefied 534 can stop needle stand 4 before moves up into hollow pipe 51 leading portion again, also namely can prevent again exposing of needle tubing 2, needle tubing 2 is shielded completely at hollow pipe 51 inner chamber.
Owing to present invention employs, ring-shaped groove is set in needle stand stage casing, edge arranges annular projection thereon, and section flap side facility has lock ring in the housing, and the hypomere of lock ring has arc-shaped curved surface, the maximum inner diameter of this curved surface is greater than the external diameter of the annular projection of needle stand; Said structure, makes needle stand of the present invention at assembling process, can smoothly once mounting to hollow pipe epimere inner chamber and simultaneously by lock ring locking build-in; Whole installation process can be once complete, and is beneficial to the application of automation equipment, is convenient to industrialization automation size and produces;
Arrange ring-shaped groove owing to present invention employs in needle stand stage casing, edge arranges annular projection thereon, and section flap side facility has release ring in the housing, and the maximum inner diameter of release ring is greater than the external diameter of the annular projection of needle stand; Said structure, makes needle stand of the present invention after a procedure, pressing trigger key, and when making axle center and the hollow pipe dead in line of release ring, enough make needle stand hightail and clamp down on, spring is discharged, and under spring action, needle stand and needle tubing automatic shooting are to hollow pipe inner chamber;
Owing to present invention employs, the hypomere of the hollow pipe of housing is provided with barb and the convex stupefied structure of elasticity, after needle stand directive hollow pipe lower end can be made, the barb of limited and this section and elasticity convex stupefied between, can not move forward and backward, keep needle stand and needle tubing shielding in hollow pipe, can not again expose.
Owing to present invention employs housing and hollow pipe and button set in the structure of one, simplify the quantity of parts, decrease manufacturing process and assembling procedure; Not only again due to housing of the present invention and hollow tubular structure thereof, be protective casing but also be the operation passage of spring fitting process, the production and assembly of automation equipment are convenient in the present invention, significantly can reduce production cost.
Technical scheme described in the invention, at those skilled in the art by being out of shape any similar distortion that can realize, all will fall into technology category of the present invention.
Claims (4)
1. a new type of safe formula venipuncture needle, is made up of sheath (1), spring (3), needle tubing (2), needle stand (4), housing (5), flexible pipe (6), female Luer (7); It is characterized in that: needle tubing (2) grafting cements in the hole of needle stand (4) front end, spring (3) is enclosed within the appearance of needle stand (4) epimere, is compressed in by spring (3) in space that needle stand epimere and housing (5) hollow pipe (51) leading portion inner chamber formed; The basic structure of housing (5) is a hollow pipe (51); There is an abducent flap (52) both sides of the hollow pipe of housing, there is the hollow out of an irregular curve shape to crack (54) at the middle epimere of housing (5) right side flap, right side (or left side) flap is partitioned into a cantilever (55) in polyline shaped; In one end of the sensing hollow pipe of cantilever (55), be sequentially provided with two semicircular ring, far-end be lock ring (521), near-end be release ring (522).
2. according to the said a kind of new type of safe formula venipuncture needle of claim 1, it is characterized in that: the basic structure of housing (5) is a hollow pipe (51), its front end perforate is reduced, this aperture slightly larger than the external diameter of needle stand epimere (41), but is less than or equal to the internal diameter of spring (3); Have several latasuture (532) at the hypomere of hollow pipe (51), have barb (533) at the lower end Inner edge of hollow pipe (51), the minimum diameter of this barb is less than the external diameter of needle stand annular projection (42); A semi-circular fluting is had in the side of hollow pipe (51) hypomere, there is an elasticity convex stupefied (534) therebetween, this is convex stupefiedly extends internally downwards, makes its distance arriving hollow pipe axis bottom be less than the radius of the annular projection (42) of needle stand (4).
3. according to the said a kind of new type of safe formula venipuncture needle of claim 1, it is characterized in that: there is abducent flap (52) both sides of housing hollow pipe (51), there is closed backplate to hold in the periphery of flap (52), outside the backplate of cantilever, have several projection to become trigger key (53); In the direction of the sensing hollow pipe of cantilever (55), be sequentially provided with two semicircular ring, the internal diameter of the lock ring (521) of far-end equals the external diameter in needle stand (4) stage casing ring-shaped groove (43); The semi-ring internal diameter of the release ring (522) of near-end is greater than the external diameter of the annular projection (42) in needle stand (4) stage casing; The width of needle stand ring-shaped groove (43) is greater than the lock ring (521) on cantilever and discharges the width of ring (522).
4. according to the said a kind of new type of safe formula venipuncture needle of claim 1, it is characterized in that: the external diameter of needle stand (4) epimere is less than the internal diameter of spring (3), there is a ring-shaped groove (43) in the stage casing of needle stand (4), have an annular projection (42) at the upper limb of this groove, the external diameter of annular projection (42) be less than in hollow pipe (51), the internal diameter of hypomere; Have endoporus (44) in the lower end of needle stand, this aperture slightly larger than or equal the external diameter of flexible pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106258.4A CN104665846A (en) | 2015-03-11 | 2015-03-11 | Novel safe venipuncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106258.4A CN104665846A (en) | 2015-03-11 | 2015-03-11 | Novel safe venipuncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104665846A true CN104665846A (en) | 2015-06-03 |
Family
ID=53301819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106258.4A Pending CN104665846A (en) | 2015-03-11 | 2015-03-11 | Novel safe venipuncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104665846A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040049129A1 (en) * | 2002-09-05 | 2004-03-11 | Yan Qi | Wafer assembly having a resilient extendable/retractable needle means for healthcare |
| CN101104094A (en) * | 2007-08-10 | 2008-01-16 | 张亚根 | Safety type artery and venous indwelling needle with airtight interface without needle |
| CN101239217A (en) * | 2007-08-10 | 2008-08-13 | 张亚根 | Safety type artery and vein indwelling needle with needleless closed positive pressure interface |
| CN101269253A (en) * | 2007-12-10 | 2008-09-24 | 张亚根 | H type safety needle for remaining in vein and artery with non-needle interface positive pressure air-proof valve |
| CN101394789A (en) * | 2006-03-08 | 2009-03-25 | 爱科来株式会社 | Lancet device |
| CN202920209U (en) * | 2012-10-29 | 2013-05-08 | 毛春元 | Safe hemostix |
-
2015
- 2015-03-11 CN CN201510106258.4A patent/CN104665846A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040049129A1 (en) * | 2002-09-05 | 2004-03-11 | Yan Qi | Wafer assembly having a resilient extendable/retractable needle means for healthcare |
| CN101394789A (en) * | 2006-03-08 | 2009-03-25 | 爱科来株式会社 | Lancet device |
| CN101104094A (en) * | 2007-08-10 | 2008-01-16 | 张亚根 | Safety type artery and venous indwelling needle with airtight interface without needle |
| CN101239217A (en) * | 2007-08-10 | 2008-08-13 | 张亚根 | Safety type artery and vein indwelling needle with needleless closed positive pressure interface |
| CN101269253A (en) * | 2007-12-10 | 2008-09-24 | 张亚根 | H type safety needle for remaining in vein and artery with non-needle interface positive pressure air-proof valve |
| CN202920209U (en) * | 2012-10-29 | 2013-05-08 | 毛春元 | Safe hemostix |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102284104B (en) | Safety vein puncture needle | |
| TW200515929A (en) | Medical appliance | |
| CN101879341A (en) | Safety venous indwelling needle with needleless interface positive-pressure closing valve | |
| CN202590066U (en) | Antithrombotic anticoagulant type safe indwelling needle | |
| CN201939855U (en) | Acupuncture-prevention venous retention needle | |
| CN202497155U (en) | Improved pen-type safe blood taking needle | |
| CN201996961U (en) | Safe remaining needle for transfusion | |
| CN104720828A (en) | Safety type vein puncture needle | |
| CN202173450U (en) | Safe venous puncture needle | |
| CN201481960U (en) | Safety venous indwelling needle | |
| CN104665846A (en) | Novel safe venipuncture needle | |
| CN205307510U (en) | Vein detained needle capable of preventing needling | |
| CN201295452Y (en) | Y-shaped safe arteriovenous indwelling needle with a needleless connector positive-pressure containment valve | |
| CN203577061U (en) | Anti-needle stick injury intravenous infusion needle | |
| CN204500731U (en) | A kind of safety type venipuncture needle | |
| CN209060192U (en) | A kind of new type of safe remaining needle | |
| CN209695207U (en) | Safety blood taking needle with automatic needle return function | |
| CN203597956U (en) | Novel vacuum blood collection tube | |
| CN212661817U (en) | Novel blood gas analysis blood taking needle | |
| CN213465028U (en) | Safety arteriovenous blood sampling needle | |
| CN204618351U (en) | A kind of automatic retracting type venipuncture needle | |
| CN104027119B (en) | Safe type vein blood taking needle | |
| CN111493894A (en) | Pen type safety blood taking needle | |
| CN219229894U (en) | Blood taking needle with protection function | |
| CN201929961U (en) | Disposable blood collection connecting tube for hemodialysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |