CN101035581A - Disposable safety syringe to prevent needlestick injuries and reuse - Google Patents
Disposable safety syringe to prevent needlestick injuries and reuse Download PDFInfo
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- CN101035581A CN101035581A CN 200580031097 CN200580031097A CN101035581A CN 101035581 A CN101035581 A CN 101035581A CN 200580031097 CN200580031097 CN 200580031097 CN 200580031097 A CN200580031097 A CN 200580031097A CN 101035581 A CN101035581 A CN 101035581A
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Abstract
The syringe includes a cylindrical barrel, a plunger in part disposed within the barrel and an elongated end cannula extending from the distal end of the barrel and formed integrally with the barrel of a single unitary plastic material. The plunger includes a distal end portion within the barrel having surfaces cooperable with surfaces along the interior of the barrel and enabling separation of the plunger end from remaining portions of the plunger in response to relative rotation of the plunger and barrel. A collar may be disposed about the cannula to seal with the lip of a medication vial. A clip is engageable within the plunger and barrel to fix the axial location of the plunger relative to the barrel at selected locations therealong.
Description
Technical field
It is that JIUYUE in 2004 16 days and serial number are No.60/610 that the application relates to the applying date, 194, the applying date is that on November 8th, 2004 and serial number are No.60/625,724, the applying date is that December in 2004 13 days and serial number are No.60/635,178 and the applying date be that December in 2004 30 days and serial number are No.60/640,177 provisional application formerly.
The present invention relates to a kind of novel safe disposable syringe needle system, it has medical treatment and commercial Application.More particularly, the present invention is about a kind of syringe, this syringe can be filled with fluid, medicament etc. and can realize such effect, promptly, temporary transient or long term storage of medication or other material also allow they are sent to medicine bottle or intravenous line (intravenous line) from the inside of syringe and do not need to be installed to or to use any other device, such as dismountable pin or access device or port.In an embodiment of conventional metal needle, Luer fit etc. can be installed to realize intradermal injection or other injection.
This syringe is intended to eliminate or reduce the probability of needle stick injuries.In one embodiment, described syringe can for good and all be forbidden after the end user uses, to prevent to be used to inject or transmit reusing of fluidic syringe.In one embodiment, the material of making syringe is an inertia with respect to the content of the medicament that allows the long period storage etc. substantially, and composition or activity are had no significant effect.
Background technology
In developed country and developing world, all more and more note such as the needle stick injuries among the healthcare givers of healthcare workers.Can be propagated by the needle stick injuries of chance more than 20 kinds of diseases, especially hepatitis B, hepatitis C and Ebola virus, west Nile fever etc.
Reduce or eliminate needle stick injuries and become important problem.The diffusion that wards off disease is key factor in the safe place to work and recruitment and the reservation that helps healthcare workers." the pinprick safety bill " of the U.S. and work out and be used to have the safer technology of the syringe and the pin of built-in security feature in Canada at Australia and Europe similar motion mandatory adoption in question.In developing country, the improper of syringe reused often.Some report demonstration, and in recent years in Africa, the injection more than 50% is by the not sterilization of reusing and unsafe injector to inject.Focus has forwarded to by preventing that unexpected needle stick injuries from warding off disease and has infected healthcare workers and reuse the syringe epidemic victim that wards off disease by non-.
Syringe with sharp metal needle is used to pass the injection of skin.The stopper that the reproducing of freeze dried or other powdered medicament (reconstruction) utilized sharp metal needle penetration of vials is usually realized to allow to add reproducing of diluent and medicine.Use sharp metal needle allow casual accidental needle stick injuries and/or syringe that is used to inject or pin have a mind to reuse.
Traditionally, sharp metal needle also is used for introducing medication in the intravenous line.The barrier film of having attempted utilizing plastic bushing blunt fully in the intravenous line and having cracked is in advance eliminated the use of pin.Though these are that effectively they are complicated and expensive, need be used to lead to the additional valve of medicament valve or add the adnexa of giving this blunt fully telescopic complexity, this has increased expense.Therefore they are not accepted extensively.
Summary of the invention
The present invention relates to disposible safety syringe, this syringe can also allow fluid or pharmacy security to be stored in the barrel of syringe.This makes the fluid comprise for example can be sent in the medicine bottle, and this medicine bottle comprises need utilize that fluid reproduces freeze dried or other medicament or material.Described syringe can also be used to use same syringe that the medicament that reproduces is sent in the intravenous line.Described syringe can also be used for industrial purposes, and being used for takes a sample or for example add other vessel or container can be deleterious material.
U.S. Patent No. 6,616, the safe sleeve pipe of describing in 632 (here by the reference combinations) can lead to medicine bottle and intravenous line, and does not have the danger of needle stick injuries.In one embodiment, can utilize conventional forward Luer Lok that is molded as described syringe barrel or Luer fit connection and be connected to described syringe such as sleeve pipe of in this patent, describing or similar sleeve pipe.But independent telescopic connection is time-consuming and higher such as the cost of the syringe of one aspect of the present invention, and syringe of the present invention has the safe sleeve pipe of one, and this sleeve pipe is the individual unit that forms by injection moulding and described barrel for example.
The present invention allows to lead to intravenous line, medicine bottle etc., and do not need independent sleeve pipe.In addition, because the plastic resin of exploitation in recent years has generally impermeability and not reactive such as cyclic olefine copolymer (COC), so can realize that diluted fluid or medicament, solid or liquid storage are in syringe.This has eliminated to holding bottle with to the normally used sharp metal needle of this bottle and the needs of syringe of leading to.In an embodiment of described syringe, described syringe can be permanent forbidding, to prevent reusing of this syringe or any parts.This can be accomplished in several ways, and comprises the fragile part on described pin/sleeve pipe that permission removes from described syringe.In addition, the fragile part on the plunger can make this plunger break, thereby prevents reusing of described syringe.This for example can realize so that described plunger breaks at predetermined breakdown point place by the part of described plunger being fixed with respect to described barrel and the not standing part of described plunger being applied revolving force.
Should be understood that with the described sleeve pipe of described barrel all-in-one-piece and can have a variety of structures, size and surface texture.Exterior side wall can be for straight, slick and cylindrical or be taper and slick, and the two all stops in cannula tip.
In one embodiment, described barrel and sleeve pipe are molded as one single unitary component.This has simplified manufacturing, thereby has reduced cost.This has reduced the required work of assembled syringe and has eliminated sleeve pipe or pin location, the Kai Bao of other type arbitrarily and be connected to needs on the front portion of described syringe.This has also eliminated and has allowed the accidental pollution of fluid path and the step of infection subsequently.
Other benefit is such as being to prevent that metal needle is exposed to medicament.Metal can cause undesirable interaction between interior fluid of the described syringe that is pre-charged with and the described pin.For example, the undesirable crystallization of dissolved substance and potential obstruction of described pin of acting as.
In another embodiment, can utilize dismountable anchor clamps or similar reversible fixed mechanism that described plunger is fixed on a plurality of different axial positions with respect to described barrel, accurately be filled into predetermined volume to allow described syringe.This allows a syringe size to be used for the solution of different volumes, thereby makes packing simplify.
The axial restraint of described plunger prevented in transportation and/or in the processing procedure of described syringe (for example in the stopper of medicine bottle or penetrating in the process of IV line) described plunger move with respect to described barrel.Described anchor clamps or fixed mechanism can be worked as and be thrown off when needing and remove to allow plunger to move fully with respect to described barrel.
Utilize the molded described barrel of inert plastic material to make described content (medicament) be exposed to material few as two kinds.Each properties of materials is depended in interaction possible between described container and the fluid that comprises, wherein said material can be in contact with one another and can also in conjunction with.A small amount of when using, for example during two kinds of materials (non-metallic casing or epoxy or other cohesive material), in described syringe, can store various different material.In one embodiment, the material of use is not in allowing longer-term storage, and still other characteristics of the syringe shown in can be to be used for short, instantaneous independent use.
In standard syringes, described plunger top is covered by elastomeric stopper usually, thereby allows the impermeable stably axially-movable of described plunger.Delivery cannula on the end of described barrel is closed by the pin cap seal usually.In another embodiment of syringe of the present invention, these parts, pin lid and stopper can be made by identical materials.Therefore, the medicament that is stored in the described syringe only is exposed to plastic resin, and except described stopper elastomer, described barrel is also made by this plastic resin.Therefore, many medicaments are stored in vial etc. simultaneously, and elastic plug can be stored in the COC plastic resin syringe.
If before the supply medicine, in any case must reproduce described medicament, this can be stored in by the medicament that will not reproduce in the described barrel of described syringe and finish.Described sleeve pipe can be used for sucking diluent from external source then and also allows to reproduce syringe.The long-term compatibility of medicine that reproduces and described syringe barrel material not necessarily.
If medicine be intended to as supply with through the vein mode that is usually used in medicament, described sleeve pipe can be used to lead to the vein port in more than a kind of mode.In addition, described syringe also can use with the injection or the safty pin of standard, promptly utilizes the Luer fit that is connected on the sharp metal needle to change standard syringes into.For realizing this point, described sleeve pipe can have vulnerable area between the far-end of described cannula tip and described barrel.Described telescopic this vulnerable area can be in described telescopic outside or inside.In addition, described telescopic proximal part between the distal portions of described vulnerable area and described barrel can form and the big or small Luer fit metal needle that is suitable for acceptance criteria.And the far-end of described barrel can form and the big or small Luer Lok that is suitable for acceptance criteria
TMPin.Be positioned at the outside of described barrel and be fixed to parts on the described barrel the same rotation and the threaded function that is had with Luer Lok for example is provided.That is to say, the external component that described barrel can be extended beyond described telescopic base portion or be fixed, so that the cylinder-shaped extension portion of internal whorl to be provided, that is, and LuerLok
TMSo the flange on the Luer fit metal needle of standard just can with the cylinder-shaped extension portion screw-threaded engagement of described internal whorl, to keep described Luer pin about described telescopic base portion.Therefore, Unitarily molded syringe barrel and sleeve pipe can be converted for utilizing the Luer fit draw point of standard or safe Luer fit pin to pass through individual's skin direct injection by making described telescopic far-end fracture.Therefore, the syringe of described conversion just can not be reused after in a single day described syringe has ruptured with respect to the rotation of described barrel by described plunger.
After use, described syringe is forever inoperative by making described plunger fracture.Therefore described syringe can not reuse.
In a preferred embodiment of the invention, provide a kind of syringe, this syringe comprises: syringe barrel, and this syringe barrel has near-end and far-end; Plunger, this plunger part are arranged in the described barrel and have chock plug or stopper near the described barrel inner end of described plunger, and described plunger can be towards moving with described far-end away from described barrel; The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the described far-end of described barrel and described plunger chock plug, be used for receiving fluid or discharging fluid from described barrel to described barrel; Described barrel and sleeve pipe form by the plastic material of single one is molded.
In an also preferred embodiment of the present invention, a kind of syringe is provided, comprising: syringe barrel has near-end and far-end; Plunger, this plunger part are arranged in the described barrel and have chock plug or stopper near the described barrel inner end of described plunger, and described plunger can be towards moving with far-end away from described barrel; The far-end of described barrel ends at elongated end sleeve pipe, and this sleeve pipe has the central opening with the internal communication of described barrel between the far-end of described barrel and described plunger chock plug, be used for receiving fluid or discharging fluid from described barrel to described barrel; Described syringe have contiguous described chock plug and can with the remainder separable end of this plunger, the described plunger end with matching surface makes the remainder of described plunger end and this plunger to separate with the relative rotation of described barrel in response to described plunger with described barrel.
In an also preferred embodiment of the present invention, a kind of syringe is provided, this syringe comprises: syringe barrel, this syringe barrel has near-end and far-end; Plunger, this plunger part are arranged in the described barrel and have near the described barrel inner end of described plunger chock plug, and described plunger can be towards moving with described far-end away from described barrel; The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the far-end of described barrel and described plunger chock plug, be used for receiving fluid or discharging fluid from described barrel to described barrel; With around described telescopic circumferential collar, the described collar has such feature, such as the cannelure about the outer surface of this collar, the size of this groove is suitable for receiving the top of medicine bottle, so that the described collar is to sealing between the described collar and the described medicine bottle top.
In an also preferred embodiment of the present invention, a kind of syringe is provided, this syringe comprises: syringe barrel, this syringe barrel has near-end and far-end; Plunger, this plunger part are arranged in the described barrel and have near the described barrel inner end of described plunger chock plug, and described plunger can be towards moving with described far-end away from described barrel; The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the far-end of described barrel and described plunger chock plug, be used for receiving fluid or discharging fluid from described barrel to described barrel; And anchor clamps, these anchor clamps can engage with described plunger and described barrel in described plunger each position with respect to the axial location of a plurality of selections of described barrel, thereby with respect to described barrel the axial location of described plunger are fixed on selected position along described plunger.
Description of drawings
Fig. 1 is the profile of the syringe of constructing according to a preferred embodiment of the invention;
Figure 1A and Figure 1B are the profiles with the similar syringe of Fig. 1, show the sleeve pipe of other structure;
Fig. 2 is the partial side view that the integral body between expression sleeve pipe and the syringe barrel connects, and the some of them part illustrates with profile;
Fig. 3 is the profile of the far-end of barrel and plunger;
Fig. 4 roughly cuts open the cutaway view of getting along the line 4-4 among Fig. 3;
Fig. 5 is and the similar view of Fig. 3, and the part of plunger and plunger chock plug are separated from each other;
Fig. 6 is and the similar view of Fig. 3 to illustrate around being used for from the fluidic telescopic collar of bottle extraction of hanging;
Fig. 7 is and the similar view of Fig. 6 to show the collar and the far-end of syringe and the fluid of extracting out from bottle that are installed on the bottle;
Fig. 8 is and the similar view of Fig. 1, shows the anchor clamps that are used for along barrel plunger being fixed on the axial positions of selection;
Fig. 9 is the vertical view of anchor clamps;
Figure 10 is the side view of anchor clamps;
Figure 11 is and the similar side view of Fig. 8 to show plunger another form with respect to the axial restraint of barrel;
Figure 12 is the vertical view of the anchor clamps that use among the embodiment of Figure 11;
Figure 13 is the syringe barrel and the telescopic part sectioned view of expression one, and this sleeve pipe has weak sleeve portion in self mid-length;
Figure 13 A and Figure 13 B be and the similar profile of Figure 13, shows the others of the weak collar portion of being convenient to make telescopic distal portions fracture;
Figure 14 is and the similar view of Figure 13, shows the standard luer fit with metal needle and be applied to telescopic remainder; With
Figure 14 A is and the similar view of Figure 13, shows the Luer Lok that is used to keep metal needle and syringe barrel
TM
The specific embodiment
With reference to Fig. 1, show the syringe of totally representing by Reference numeral 10, it comprises barrel 12, plunger 14 and the sleeve pipe 16 of elongated roughly tubular.Shank in the middle of plunger 14 comprises, this shank is preferably cruciform cross-section, has thumb press 18 and has elasticity chock plug 20 at its far-end at near-end.It between cruciform shank and chock plug 20 the fragile part 22 that below will describe.Also show the cap 24 of overlapping casing tube 16.This cap can by by interference fit, be threaded or alternate manner is installed on the barrel, or be installed to alternatively on any other adnexa or part of barrel, for example Luer Lok threaded circular cylinder.This cap can comprise the end of elastic plug with stable or Sealed casing pipe.Can also opening all be set at the two ends of cap,, be used to make this telescopic far-end to fracture with respect to the area part of as shown in figure 13 Luer size so that this cap slides on sleeve pipe and as stick.
As shown in the figure, barrel 12 and sleeve pipe 16 are molded as a single unitary piece, and have therefore eliminated the differences in materials between barrel and the sleeve pipe, and usually metal needle have been connected to any bonding agent required on the barrel.The parts of plastics of syringe comprises the barrel and the sleeve pipe of one, these parts of plastics are by plastic material and be preferably cyclic olefine copolymer (COC) and form, this plastic material barrier of doing water or other molecule, thus allow syringe to be pre-charged with water or other solution or drying and/or mealy medicine.Syringe 10 is operated in common mode certainly, and plunger can be incorporated into fluid in the syringe with respect to axially retreating of syringe barrel thus, and plunger is discharged fluid towards the moving axially of far-end of barrel from syringe.
The shape of integral cannula 16 can with U.S. Patent No. 6,616, disclosed shape is the same in 632, in conjunction with this United States Patent (USP) as a reference, and should be understood that the feature of this patent can be used for the present invention here.And bushing outer surface can have for sleeve pipe and passes the configuration that membranous motion provides corresponding different resistance.This configuration can be accompanying drawing 1 to 6 description of reference U.S. Patent No. 6,616,632 and the type that illustrates.For example, sleeve pipe can easily penetrate the barrier film that does not have support, that is, and and the top of medicine bottle, but will pierce through skin with maximum difficulty.Fig. 1 shows the sleeve pipe with step outer surface.Figure 1A shows and barrel all-in-one-piece sleeve pipe, and this sleeve pipe has the slick outer surface 23 that is roughly tubular on its whole length.Figure 1B shows and barrel all-in-one-piece sleeve pipe, and this sleeve pipe has the conical outer surface 25 of smooth and continuous.
With reference to Fig. 3 to Fig. 5, fragile part 22 correspondingly comprises a pair of axially spaced upper plate 26 and lower plate 28, this interconnects by bar or the connector 30 that axial diameter reduces plate, makes that the shank of upper plate 26, plunger and near-end can be in response to plunger around syringe axis and with respect to the rotation of barrel and separate with lower plate 28 and chock plug 20.In order to finish this action, the inner surface of barrel adjacent distal end is provided with one or more radially inwardly outstanding ribs 32, has illustrated among Fig. 4 to be in radially two such ribs of relative position.Lower plate 28 has the periphery that is for example formed by a plurality of radially outer projections 34 and adjacent groove 36.Should understand, at plunger when the far-end of barrel moves axially, one or more grooves 36 will be engaged by one or more ribs 32 of barrel, thereby allow plunger to carry out axially-movable with respect to barrel, rotatablely move but make the relative rotary motion of plunger and barrel minimize or eliminate this.Yet, because the chance that axial dieback engages can take place to prevent to block and significantly reduce, so the layout of rib and groove needn't be radially relative for asymmetric mutually in the layout of rib and groove.On the inner surface of barrel comprise rib, groove or more planar change and plunger on individual features can realize that the distal portions of plunger and the rotation between the barrel far-end fix.Should be understood that by making plunger rotate the bar or the connector 30 that make fragile part 22 and rupture, thereby can prevent reusing of syringe with respect to barrel.One or more ribs 32 of barrel 12 and lower plate 28 and the cooperation between the groove 36 have prevented the relative rotation at plunger lower plate 28 and barrel 12 during with respect to barrel 12 rotation.Also will understand, though because reasons in structure has upper plate 26 ideally, and upper plate 26 is not necessary, and the feature except rib and groove can be used to also realize that desired rotation fixes.
With reference to Fig. 6 and Fig. 7, sleeve pipe 16 can be provided with the collar 40 that is formed by elastomeric material, and this elastomeric material makes this collar have flexibility, elasticity and is substantially spongy.Elastomeric material can be for opening chamber (open cell) or closed chamber (close cell) and having central opening 42, so that cover is around sleeve pipe 16 assemblings.The collar 40 also comprises cannelure 44, the size of this cannelure be suitable for acceptance criteria bottle 48 antelabium 46 or tapered with cooperate multiple size the bottle.When needs were extracted liquid out from bottle 48, sleeve pipe 16 was inserted in the bottle 48 and the collar 40 engages with the antelabium of bottle, and antelabium 46 is received in the groove 44 as shown in Figure 7.The antelabium 46 that the collar is inserted into bottle is convenient in the taper of the collar.Should be understood that to be arranged in the bottle 48 and antelabium 46 when engaging when sleeve pipe that the collar is to sealing between the sleeve pipe and the collar and between the collar and the antelabium with the collar 40.Therefore, described bottle can be put upside down to allow the utilizing sleeve pipe relatively short with respect to the length of bottle to take all fluid contents.The described collar can design like this, thus when sleeve pipe by when bottle removes, the collar remains on the cervical region of vial, makes identical sleeve pipe can not reuse easily and can not reuse with the original collar 40 certainly.The collar is under situation about remaining on after described bottle removal sleeve pipe on the sleeve pipe 16 therein, and the collar can not be provided with groove 44.
With reference to Fig. 8 to Figure 10, plunger can be fixed on the axial positions of selection with respect to barrel.This has prevented in transportation syringe process and has utilized in the process that this mechanism fills, the relative motion between plunger and the barrel, and make the dimensional standardization of syringe, thus can make syringe be filled into the height of selection with the fluid of selected amount.In order to realize this point in one embodiment of the invention, plunger 14 is provided with the cross mid portion in its each alar part 50, and the opening 52 of a plurality of axially spaced-aparts.These openings are demarcated (indexed) with respect to the near-end of barrel, and this is associated with fluid at the scheduled volume in barrel between the far-end of barrel and the chock plug 20.
With reference to Fig. 9 and Figure 10, stabilizing clip 56 comprises: pair of outer leg 58, be used for below receive barrel 12 near-end finger press 60 and engage; With a pair of interior leg 62, be used for being received in the opening of selection to 52.Therefore, by returning plunger with respect to barrel, so that the fluid of selected amount resides in the far-end of barrel, anchor clamps can be put on barrel, and make outer legs 58 be positioned at finger press 60 belows and engage, the opening that interior leg 62 is received in selection is in 52, thereby plunger and barrel locked mutually and can not axially-movable.This lock out action also guarantees, in the process of before removing anchor clamps 56 syringe being operated, the content of syringe can not extruded by accident prematurely.When removing stabilizing clip 56, syringe can be used in the mode of normal conventional.Anchor clamps 56 can be integrally formed with barrel 12.
With reference to Figure 11 and Figure 12, show another embodiment, wherein plunger and barrel interfix in the axial positions of selecting.In this case, the edge of the cruciform wings of plunger 14 has recess or groove in the position that axially separates along it.Provide outer legs to 72 single U-shaped anchor clamps 70 with axially spaced-apart.In use, the outer legs of axially spaced-apart can be on finger press 60 to 72, and upper leg is right to engage the groove of selecting by inside fexible bias pressure along the edge of plunger to 72, thereby plunger is fixed on the axial positions of selection with respect to barrel.In order to use syringe, anchor clamps 70 from the bond-off of plunger, thereby plunger can be moved axially with respect to barrel.
Referring now to Figure 13 and Figure 14, syringe barrel 12 can be provided with the similar integrally formed sleeve pipe 80 with embodiment formerly.But at this on the one hand, sleeve pipe 80 has vulnerable area 82 between telescopic far-end 84 and base portion 86.The remainder of syringe is with above-described identical.At this on the one hand, size, size and the structure of the proximal part 88 of sleeve pipe 80 is defined as being suitable for the Luer fit of acceptance criteria, its comprise sharp metal needle or with any Luer standard male connector engages such as the Luer activated valve that is generally used for leading to the IV infusion set.That is to say that telescopic distal portions 90 can stay the proximal part 88 that size, size and structure are confirmed as being used to receive Luer fit at vulnerable area 82 places from proximal part 88 fractures.With reference to Figure 14, Luer fit comprises the socket 94 that metal needle 96 is installed.Socket 94 comprises the recessed socket 97 of interior tapered, is used for having been received by the back that fractures at the distal portions 90 of sleeve pipe 80 the protrusion proximal part 88 of taper.Therefore, the syringe of Figure 13 can be after use, for example is converted to be used to utilize the metal needle injection to penetrate the standard syringe of each application on human skin extract medicament out from bottle after.Above-described plunger fracture characteristic will prevent reusing subsequently of syringe.
Referring again to Figure 13 A and Figure 13 B, telescopic outer cylindrical or conical surface can be smooth and continuous, and simultaneously provide vulnerable area in the mid-length of the collar, so that cannula tip ruptures similarly with mentioned above.In Figure 13 A, the internal diameter 99 of sleeve pipe 100 is different with 101 in the transition at weak spot 102 places, so that the fracture of cannula tip.In Figure 13 B, telescopicly carry out the transition to smaller diameter portion 106 than major diameter part 104, therefore form vulnerable area 108 at transition position, thereby be convenient to make the cannula tip fracture, stay the telescopic conical shaped proximal part that size, size and structure are confirmed as receiving Luer socket 96.
In Figure 14 A, the proximal part 88 of the syringe barrel that has stayed after proximal part fracture at telescopic distal portions can receive the socket 94 of installation metal needle 96.But at this on the one hand, barrel has the cylinder-shaped extension part 112 of internal whorl at 114 places, and makes the Luer Lok of standard
TMFlange 116 and metal needle be threaded on the barrel, and proximal part 88 is in socket.Can understand, Luer Lok feature can with shown in barrel integrally moulded, and can be independent parts equally, this unitary part can self be threaded onto on the external screw-thread that is molded on the barrel or with it and match, and by such as the further feature of snap fit and prevent that the feature of rotating or the bindiny mechanism of other type on other outer surface that is present in far-end barrel and/or proximal sleeve 94 are fixed.Therefore, the barrel of one and sleeve pipe can be at telescopic far-end in case after staying proximal sleeve part 88 from casing failure and being used to receive the socket of pin, with Luer fit or LuerLok
TMStructure is used together.
Though engaged and currently be considered to that most realistic invention has been described with preferred embodiment, it should be understood that the present invention is not limited to the disclosed embodiments, on the contrary, the present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims.
Claims (22)
1, a kind of syringe, this syringe comprises:
Syringe barrel, this syringe barrel has near-end and far-end;
Plunger, this plunger part are arranged in the described barrel and have near the chock plug the end of described barrel that is positioned at described plunger, and described plunger can be towards moving with described far-end away from described barrel;
The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the described far-end of described barrel and described plunger chock plug, be used for fluid is received into described barrel or discharges fluid from described barrel;
Described barrel and sleeve pipe are molded and form by the plastic material of single one.
2, syringe according to claim 1, wherein said material are cyclic olefine copolymer.
3, syringe according to claim 1, wherein said sleeve pipe comprise that membranous moving provides the configuration of corresponding different resistance for described sleeve pipe passes along this bushing outer surface.
4, syringe according to claim 1, wherein said plunger has an end, the contiguous described chock plug in this end also can separate with the remainder of described plunger, described plunger end and described barrel have matching surface, make described plunger end can separate in response to the relative rotation of described plunger and described barrel with the remainder of described plunger.
5, syringe according to claim 4, wherein said matching surface can be bonded with each other in response to the moving axially of described far-end of described plunger towards described barrel.
6, syringe according to claim 5, wherein said surface comprises: the rib that at least one extends internally, this rib are located near the far-end of described barrel; Be located at the projection of described plunger end with at least one, described rib and projection prevent the relative rotation of described plunger end and described barrel when engaging.
7, syringe according to claim 1, this syringe comprises around described telescopic circumferential collar, the described collar has the cannelure around the outer surface of this collar, and the size of this groove is suitable for receiving the top of medicine bottle, so that the described collar is to sealing between described sleeve pipe and the described medicine bottle top.
8, syringe according to claim 7, the wherein said collar are by flexible, elastic closed chamber or open the chamber material and form.
9, syringe according to claim 7, the wherein said collar and described sleeve pipe releasably interfix, so that described sleeve pipe withdraws from from the described collar, the described collar are stayed described lip edge place.
10, syringe according to claim 1, this syringe comprises anchor clamps, these anchor clamps can engage with described plunger and described barrel in each position in the axial location of a plurality of selections of the described relatively barrel of described plunger, thereby the axial location of the described relatively barrel of described plunger is fixed on selected position along described plunger.
11, syringe according to claim 10, wherein said barrel is included in the finger press at the described proximal end place of this barrel, and described anchor clamps can engage with described finger press with opening in described plunger or the recess that forms along described plunger.
12, syringe according to claim 1, wherein said sleeve pipe comprises that membranous moving provides the configuration of corresponding different resistance for described sleeve pipe passes along this bushing outer surface, wherein said plunger have contiguous described chock plug and with the remainder separable end of described plunger, described plunger end and described barrel have matching surface, so that described plunger end is separated in response to the relative rotation of described plunger and described barrel with the remainder of described plunger
Described plunger end and described barrel have matching surface, so that described plunger end is separated in response to the relative rotation of described plunger and described barrel with the remainder of described plunger.
13, syringe according to claim 1, wherein said plunger has: contiguous described chock plug and with the remainder separable end of described plunger, described plunger end and described barrel have matching surface, so that described plunger end is separated in response to the relative rotation of described plunger and described barrel with the remainder of described plunger; With around described telescopic circumferential collar, the described collar has the cannelure around the outer surface of this collar, the size of this cannelure is suitable for receiving the top of medicine bottle, so that the described collar is to sealing between described sleeve pipe and the described medicine bottle antelabium.
14, syringe according to claim 1, wherein said plunger has: contiguous described chock plug and with the remainder separable end of described plunger, described plunger end and described barrel have matching surface, so that described plunger end is separated in response to the relative rotation of described plunger and described barrel with the remainder of described plunger; And anchor clamps, these anchor clamps can engage with described plunger and described barrel with respect to each position in the axial location of a plurality of selections of described barrel at described plunger, thus described plunger are fixed on selected position along described plunger with respect to the axial location of described barrel.
15, a kind of syringe, this syringe comprises:
Syringe barrel, this syringe barrel has near-end and far-end;
Plunger, this plunger part are arranged in the described barrel and have near the chock plug the end of described barrel that is positioned at described plunger, and described plunger can be towards moving with described far-end away from described barrel;
The far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the described far-end of described barrel and described plunger chock plug, be used for to fluid being received into described barrel or discharging fluid from described barrel;
The end that described syringe has contiguous described chock plug and can separate with the remainder of this plunger, the described plunger end with matching surface can make described plunger end separate with the relative rotation of described barrel in response to described plunger with the remainder of this plunger with described barrel.
16, syringe according to claim 15, wherein said matching surface in response to described plunger towards the moving axially of described far-end of described barrel and be bonded with each other.
17, syringe according to claim 16, wherein said surface comprises: the rib that at least one extends internally, this rib are located near the far-end of described barrel; Be located at the projection of described plunger end with at least one, described rib and projection prevent the relative rotation of described plunger end and described barrel when engaging.
18, a kind of syringe, this syringe comprises:
Syringe barrel, this syringe barrel has near-end and far-end;
Plunger, this plunger part are arranged in the described barrel and have near the chock plug the end of described barrel that is positioned at described plunger, and described plunger can be towards moving with described far-end away from described barrel;
The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the described far-end of described barrel and described plunger chock plug, be used for fluid is received into described barrel or discharges fluid from described barrel; With
Around described telescopic circumferential collar, the described collar has the cannelure around the outer surface of this collar, and the size of this groove is suitable for receiving the top of medicine bottle, so that the described collar is to sealing between the described collar and the described medicine bottle top.
19, syringe according to claim 18, the wherein said collar are by flexible, elastic closed chamber or open the chamber material and form.
20, syringe according to claim 18, the wherein said collar and described sleeve pipe releasably interfix, so that described sleeve pipe withdraws from from the described collar, stay the collar around described lip edge.
21, a kind of syringe, this syringe comprises:
Syringe barrel, this syringe barrel has near-end and far-end;
Plunger, this plunger part are arranged in the described barrel and have near the chock plug the end of described barrel that is positioned at described plunger, and described plunger can be towards moving with described far-end away from described barrel;
The described far-end of described barrel ends at elongated end sleeve pipe, this sleeve pipe has the central opening with the internal communication of described barrel between the described far-end of described barrel and described plunger chock plug, be used for fluid is received into described barrel or discharges fluid from described barrel; And
Comprise anchor clamps, these anchor clamps can engage with described plunger and described barrel with respect to each position in the axial location of a plurality of selections of described barrel at described plunger, thus described plunger are fixed on selected position along described plunger with respect to the axial location of described barrel.
22, syringe according to claim 21, this syringe comprises anchor clamps, these anchor clamps can engage with described plunger and described barrel with respect to each position in the axial location of a plurality of selections of described barrel at described plunger, thus described plunger are fixed on selected position along described plunger with respect to the axial location of described barrel.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61019404P | 2004-09-16 | 2004-09-16 | |
| US60/610,194 | 2004-09-16 | ||
| US60/625,724 | 2004-11-08 | ||
| US60/635,178 | 2004-12-13 | ||
| US60/640,177 | 2004-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101035581A true CN101035581A (en) | 2007-09-12 |
Family
ID=38731665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580031097 Pending CN101035581A (en) | 2004-09-16 | 2005-09-15 | Disposable safety syringe to prevent needlestick injuries and reuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101035581A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655898A (en) * | 2009-12-16 | 2012-09-05 | 星赛瑞有限公司 | Syringes |
| CN103987416A (en) * | 2011-11-04 | 2014-08-13 | 贝克顿·迪金森公司 | Recycled resin compositions and disposable medical devices made therefrom |
| CN106540360A (en) * | 2016-11-07 | 2017-03-29 | 马根昌 | From useless type disposable syringe |
| US20220031963A1 (en) * | 2018-09-26 | 2022-02-03 | Sulzer Mixpac Ag | Dispensing outlet, dispensing system, method of using a dispensing system, injection mold and method of producing a dispensing outlet |
-
2005
- 2005-09-15 CN CN 200580031097 patent/CN101035581A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655898A (en) * | 2009-12-16 | 2012-09-05 | 星赛瑞有限公司 | Syringes |
| CN103987416A (en) * | 2011-11-04 | 2014-08-13 | 贝克顿·迪金森公司 | Recycled resin compositions and disposable medical devices made therefrom |
| CN108178876A (en) * | 2011-11-04 | 2018-06-19 | 贝克顿·迪金森公司 | Recycled resin composition and the disposable medical equipment being produced from it |
| US11324861B2 (en) | 2011-11-04 | 2022-05-10 | Becton, Dickinson And Company | Recycled resin compositions and disposable medical devices made therefrom |
| CN106540360A (en) * | 2016-11-07 | 2017-03-29 | 马根昌 | From useless type disposable syringe |
| US20220031963A1 (en) * | 2018-09-26 | 2022-02-03 | Sulzer Mixpac Ag | Dispensing outlet, dispensing system, method of using a dispensing system, injection mold and method of producing a dispensing outlet |
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