CN201701569U

CN201701569U - Sectioning barrel self-destruction disposable syringe

Info

Publication number: CN201701569U
Application number: CN201020102748XU
Authority: CN
Inventors: 李国水; 李丹宇
Original assignee: FUZHOU CULTIVATION PATENT DEVELOPMENT Co Ltd
Current assignee: FUZHOU CULTIVATION PATENT DEVELOPMENT Co Ltd
Priority date: 2010-01-26
Filing date: 2010-01-26
Publication date: 2011-01-12
Anticipated expiration: 2020-01-26

Abstract

The utility model discloses a sectioning barrel self-destruction disposable syringe, comprising a needle barrel and a plug head which is in screwing connection with a push-and-pull rod matching with the inside of the needle barrel. The sectioning barrel self-destruction disposable syringe is characterized in that the needle barrel is a hollow straight barrel, a convex guiding R slot is disposed on an upper through strip of an axial inner diameter wall of the needle barrel, at least one sunken wall sectioning slot is uniformly distributed on an axial middle section of an outer circle wall of the needle barrel, reinforcing ribs are arranged along two sides of the slot, and a sectioning blade is connected with a piston core and a movable head through a pin shaft and a rubber sleeve is covered outside the plug core to form the plug head connected with the push-and-pull rod. A sharp tip of the sectioning blade is outwards while a cutting edge is downwards and the sectioning blade adopts the pin shaft as an axis and the movable head as up and down swinging force to form lever swinging connection. During injection, the lengths of the sharp tip and the cutting edge of the sectioning blade on the plug head are relatively equal to or slightly longer than the radius of the bottom of the sunken wall sectioning slot, and the sharp tip and the cutting edge synchronously section the needle barrel along with injection. The sectioning barrel self-destruction disposable syringe realizes a safe and reliable self-destruction structure of the needle barrel, effectively stops the needle barrel from being used again, really realizes disposable safety usage, and is favorable for guaranteeing health and safety of human bodies.

Description

Cut open a self-destruction disposable syringe

Technical field

This utility model relates to the syringe of medical apparatus and instruments, and this syringe is the disposable syringe that a kind of synchronous syringe in fluid injection is also dissectd self-destruction, specifically a kind of self-destruction disposable syringe that cuts open.

Background technology

The existing plastic injector for temporary use that uses, but its disposable saying is: focus on only after being used once and be, its consequence fail fundamentally to stop this disposable syringe with after the present situation that is repeated to use, fail thoroughly to avoid the intersection viral infection, the particularly cross infection of blood propagation such as hepatitis B or acquired immune deficiency syndrome (AIDS) type virus that cause because of dangerous injection.For being accused of because of reusing disposable syringe and syringe needle, and all there is the report of being found the incident various places of reclaiming and selling the intersection viral infection that used disposable syringe causes.Continue plastic injector for temporary use after disclosing of patents such as self-destruction type of syringe constantly arranged again, but study carefully its organization plan all is to destroy after will waiting fluid injection to finish again, the method of this self-destruction afterwards that with the fluid injection descendant is, the possibility of being utilized by artificial secondary is still arranged, perhaps operate not in place and impracticable because of complex structure.The disposable syringe consumption greatly and be related to the safety of life particularly presses for so create a kind of disposable syringe of real letter justice.

The utility model content

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of, promptly dissectd self-destruction causes exhausted disposable tin organization plan of self-destruction disposable syringe and the product of cuing open to syringe at the synchronous syringe of fluid injection, use thereby reach the syringe disposable safe of realizing real letter justice, stopped artificial utilization once more effectively.

The technical scheme that its technical problem that solves this utility model adopts provides a kind of self-destruction disposable syringe that cuts open, and comprises that the interior supporting push-pull bar of syringe and syringe screws the notes chock plug that is connected and forms.Described syringe is hollow one straight cylinder, front end is provided with syringe needle, the rear end is provided with the block wing of using for push-and-pull, axial poker is provided with a protrusion R groove on the inner diameter wall of syringe, uniform on the axial middle part of the cylindrical wall of syringe have a heavy wall splitting groove that is equipped with reinforcement along the groove both sides at least, should heavy wall splitting groove to become cross to stagger arranged in a crossed manner with protrusion R groove position on the internal diameter, the wall thickness of formation should be between 0.05mm～1.0mm between circle at the bottom of the heavy wall splitting groove and in the syringe, its well width is in 0.5mm～5mm, and length can be the travel settings that this syringe pushes away liquid.

Described push-pull bar main body is that several rings are round-formed, and rearward end is provided with the block wing that push-and-pull is used, and front end head central shaft is to establishing a threaded hole.

Described notes chock plug by dissect blade, active head, annotate the plug core, bearing pin, gum cover form; There is a bearing pin through hole at the middle part of dissecing blade, and what following straight flange and front end arc upper slitter antiform became wedge angle and wedge angle is the sharp edge of a knife to the bottom, and the rear end is rectangular-shaped, dissects blade and uses one at least.The epimere of above-mentioned active head is the external spiral tooth, there is the ring circular groove at the middle part of hypomere, its groove width is slightly larger than the height that dissects blade, and the circle footpath of groove upside is greater than the circle footpath of groove downside, there is an assembling technology through hole at the center, circle footpath of active head, and active the front end head threaded hole by external spiral tooth and push-pull bar screws and be connected.The center, upper surface of above-mentioned notes plug core is provided with and cooperates circle footpath, active lower end counterbore in axial sliding, one ring circle V groove is arranged on the cylindrical hypomere, establish a R groove on axially, become uniform at least one insert groove on the wall thickness ring that the cylindrical of decussation position and interior counterbore form with the R groove, wall thickness ring perpendicular to groove and lateral direction penetrating groove both sides is provided with the bearing pin through hole, and the lower surface is for cooperating the shape of needle section in the syringe; Above-mentioned dissect the outer cutting edge of a knife or a sword mouth of razor sharpened angle, be movably connected in the insert groove of annotating the plug core by bearing pin downwards by the bearing pin through hole on it, and by end thereafter the lower end circle of active head is socketed in the counterbore of annotating plug core upper surface and does the slip socket, to dissect blade be the axle center relatively with the bearing pin, form the lever swing connection with active head for the power that swings up and down; Above-mentioned gum cover is made for the plastics soft material, circle, bottom shape all cooperate notes plug core external shape closely to be socketed on the notes plug core in it, and axially be provided with one and go out the R groove of R groove in the footpath with respect to annotating on the plug core cylindrical the axial cylindrical of the position of R groove, gum cover corresponding to boss in the syringe, the external diameter of gum cover and on the groove and the internal diameter of syringe and protrude the R groove and all make tight dimension of slide and cooperate.

Above-mentionedly respectively be connected to form: push-pull bar and annotate the chock plug screw thread spin supporting in syringe in, annotate chock plug and cooperate guiding, then annotate the wedge angle cutting edge of a knife or a sword mouth correspondence of dissecing blade on the chock plug on the heavy wall splitting groove center on the syringe by protruding the R groove on R groove on the gum cover and the syringe inwall.When active head upwards carried then dissect blade do lever swing and by the ring circular groove predetermined angle on bearing pin and the active head then wedge angle cutting edge of a knife or a sword mouth offset downward to hide and go into to annotate in the chock plug, be relative wedge angle cutting edge of a knife or a sword mouth to the radius of syringe radius centered at the bottom of, that is to say and annotate that chock plug dissects the wedge angle cutting edge of a knife or a sword mouth of blade when upwards the drawing liquid action is done in pulling and the inwall non-contravention of syringe can be finished drawing liquid less than the heavy wall splitting groove of syringe center to the syringe external diameter; Under active head quilt, push away, then drive dissect blade do lever swing to the base and the edge of a knife horizontal relatively, when the lower surface of active head is attached on the counterbore bottom surface of annotating the upper surface of filling in core, the wedge angle cutting edge of a knife or a sword mouth that dissects blade relatively to the syringe radius centered be slightly larger than or etc. be longer than radius at the bottom of the heavy wall splitting groove of syringe center to the syringe external diameter, that is to say dissect blade wedge angle cutting edge of a knife or a sword mouth relatively incision and concordant and or grow on the heavy wall splitting groove bottom surface on the syringe external diameter, move down and do fluid injection and dissect heavy wall splitting groove thin-walled position on the syringe, chock plug to be annotated is pulled to the end and finishes fluid injection, the syringe cylindrical shell is dissectd self-destruction synchronously.The purpose that this programme realization is drafted.

The beneficial effects of the utility model are: the disposable or self-destructive syringe of prior art all with the fluid injection descendant be afterwards again the method for self-destruction finish, still have by artificial secondary utilize may.Under comparing, promptly dissectd self-destruction causes exhausted disposable use to the syringe of this programme at the synchronous syringe of fluid injection, use thereby reach the syringe disposable safe of realizing on the real letter justice, stopped the artificial possibility of utilizing once more effectively, help ensureing the healthy and safe of life.

Description of drawings

Fig. 1 cuts open a self-destruction disposable syringe structure drawing liquid view.

Fig. 2 cuts open a self-destruction disposable syringe structure fluid injection view.

1 syringe among the figure, 2 push-pull bars, 3 annotate chock plug, and 4 protrude the R groove, 5 heavy wall splitting grooves, 6 dissect blade, 7 active heads, 8 annotate plug core, 9 bearing pins, 10 gum covers.

The specific embodiment

Embodiment: consult sketch map, cut open a self-destruction disposable syringe, comprise syringe 1, push-pull bar 2 is annotated chock plug 3 and is formed.Syringe 1 is hollow one straight cylinder, front end is provided with syringe needle, rearward end is provided with the block wing for push-and-pull, on the inner diameter wall of syringe 1 axially poker be provided with a protrusion R groove 4 that is used to lead use, uniform each heavy wall splitting groove 5 of subtend on the axial middle part of the cylindrical wall of syringe 1, the both sides of being somebody's turn to do heavy wall splitting groove 5 is provided with the reinforcement that exceeds barrel dliameter 1.0mm along groove, the position of its length and this length is in the effective travel when this syringe fluid injection, promptly dissect blade and in syringe, effectively dissect the length that mobile travel settings is a heavy wall splitting groove on the syringe external diameter, heavy its groove width of wall splitting groove is about 1.0mm, and with internal diameter on to become cross to stagger arranged in a crossed manner in protrusion R groove 4 positions, the wall thickness that forms between circle in the bottom surface of the heavy wall splitting groove 5 on syringe 1 cylindrical and the syringe 1 is 0.2mm.Above-mentionedly do not protrude the setting of hindering hands as intensity that keeps thin-walled in the groove and protection point of a knife along the groove reinforcement.

Push-pull bar 2 main bodys are that 4 width of cloth rib rings are round-formed, and rearward end is provided with the block wing that push-and-pull is used, and front end head central shaft is to establishing a threaded hole.

Annotate chock plug 3 by dissect blade 6, active 7, annotate plug core 8, bearing pin 9, gum cover 10 form.There is a pin shaft hole at the middle part of dissecing blade 6, and what following straight flange and front end arc upper slitter antiform became wedge angle and wedge angle is the sharp edge of a knife to the bottom, and rearward end is rectangular-shaped.Active 7 is nylon products, also can be hard material manufacturings such as rustless steel, active 7 epimere is the external spiral tooth, there is the ring circular groove at the middle part of hypomere, its groove width is slightly larger than the height that dissects blade 6, and the circle footpath of groove upside is greater than the circle footpath of groove downside, and there is an assembling technology through hole at active 7 center, circle footpath.Annotating plug core 8 is nylon products, also can be hard material manufacturings such as rustless steel, the center, upper surface of annotating plug core 8 is provided with the counterbore in axial sliding in the circle footpath, lower end that cooperates active 7, on the cylindrical hypomere ring circle have a V-type gum cover 10 tightenings with groove, axially be provided with a R groove, become decussation position uniform a pair of link slot that dissects blade 6 of symmetry on the wall thickness ring of cylindrical and the formation of interior counterbore with the R groove, wall thickness ring perpendicular to this groove and lateral direction penetrating groove both sides is provided with the bearing pin through hole, and the lower surface is for cooperating the cone shape of needle section in the syringe 1.Active 7 lower end is flexible to be placed in the counterbore of annotating the upper surface of filling in core 8, it is downward to dissect 6 two outside cutting edge of a knife or a sword mouths of the symmetrical wedge angle of difference of blade, the pin shaft hole position at middle part is in the cutter groove of the difference subtend of annotating plug core 8, rearward end is stuck in the ring circular groove on active 7, to dissect blade 6 removable pins by bearing pin 9 and fix in the insert groove of annotating plug core 8, dissect blade 6 like this with respect to notes plug core 8 and active 7 formation lever are flexibly connected.Gum cover 10 is the silica type material, the gum cover 10 tight covers that circle, bottom shape all cooperate notes to fill in core 8 external shape in it are connected on to annotate to be filled on the core 8, and with respect to the axial R groove corresponding to round upward protrusion R groove 4 in the syringe 1 that directly is provided with of the cylindrical of the position of annotating axial R groove on the cylindrical of filling in core 8, gum cover 10, protrude the R groove on the interior circle footpath of the outer circle diameter of gum cover 10, R groove size and syringe 1 and the inner round wall and do tight dimension of slide cooperation, above-mentioned respectively connecting to form annotated chock plug 3.

Use frock and active 7 center technology through hole during assembling, will annotate on the chock plug 3 the R groove facing on the protrusion R groove 4 in the syringe 1 and push in the syringe 1 round in to the bottom, annotate and to dissect blade 6 edge of a knife orientation correspondences on the orientation of the heavy wall splitting groove 5 of syringe 1 on the chock plug 3, the front end head threaded hole of push-pull bar 2 screwed on active 7 spiral tooth connect, this cuts open a self-destruction disposable syringe and just can use the purpose that this programme realization is drafted like this.

Operation principle: when active 7 upwards carried then dissect blade 6 do lever swing and by the ring circular groove predetermined angle on bearing pin 9 and active 7 then wedge angle cutting edge of a knife or a sword mouth offset downward and hide to go into to annotate in the chock plug 3, be relative wedge angle cutting edge of a knife or a sword mouth to syringe 1 radius centered less than the syringe 1 center radius at 5 ends of heavy wall splitting groove to syringe 1 external diameter, that is to say and annotate that chock plug 3 dissects the wedge angle cutting edge of a knife or a sword mouth of blade 6 when upwards the drawing liquid action is done in pulling and the inwall non-contravention of syringe 1 can be finished drawing liquid; Under active 3 quilt, push away, then drive dissect blade 6 do lever swing to the lower surface and edge of a knife limit horizontal relatively, when active 7 lower surface is attached on the counterbore bottom surface of annotating the upper surface of filling in core 8, dissect the wedge angle cutting edge of a knife or a sword mouth incision of blade 6 can be concordant and or grow on the bottom surface of the heavy wall splitting groove 5 on syringe 1 external diameter, be relative wedge angle cutting edge of a knife or a sword mouth to syringe 1 radius centered be slightly larger than or etc. be longer than the syringe 1 center radius at 5 ends of heavy wall splitting groove to syringe 1 external diameter, move down and form fluid injection and dissect heavy wall splitting groove 5 thin-walled positions on the syringe 1, wait to annotate chock plug 3 and be pulled to the end and finish fluid injection, syringe 1 cylindrical shell is also dissectd self-destruction synchronously.

Though this utility model is described in detail with above-mentioned specific embodiment; and the corresponding claim of formation; but this utility model is not limited to the described concrete literal content of claim; allly utilize basic design of the present utility model; further optimum organization and the distortion or the improvement project that form all should be considered as within protection domain of the present utility model.

Claims

1. one kind is cutd open a self-destruction disposable syringe, comprise that the interior supporting push-pull bar of syringe and syringe screws the notes chock plug that is connected and forms, it is characterized in that: described syringe is hollow one straight cylinder, front end is provided with syringe needle, the rear end is provided with the block wing for push-and-pull, on the inner diameter wall of syringe axially poker be provided with one and protrude the R groove, uniform on the axial middle part of the cylindrical wall of syringe have a heavy wall splitting groove that is equipped with reinforcement along the groove both sides at least; Described push-pull bar main body is that several rings are round-formed, and rearward end is provided with the block wing that push-and-pull is used, and front end head central shaft is to establishing a threaded hole; Described notes chock plug by dissect blade, active head, annotate the plug core, bearing pin, gum cover form; There is a bearing pin through hole at the middle part of dissecing blade, and what following straight flange and front end arc upper slitter antiform became wedge angle and wedge angle is the sharp edge of a knife to the bottom, and rearward end is rectangular-shaped; The epimere of described active head is the external spiral tooth, and there is the ring circular groove at the middle part of hypomere, and its groove width is slightly larger than the height that dissects blade, and the circle footpath of groove upside is greater than the circle footpath of groove downside; The center, upper surface of described notes plug core is provided with and cooperates circle footpath, active lower end counterbore in axial sliding, one ring circle V groove is arranged on the cylindrical hypomere, establish a R groove on axially, become uniform at least one insert groove on the wall thickness ring that the cylindrical of decussation position and interior counterbore form with the R groove, wall thickness ring perpendicular to groove and lateral direction penetrating groove both sides is provided with the bearing pin through hole, and the lower surface is for cooperating the shape of needle section in the syringe; Describedly dissect the outer cutting edge of a knife or a sword mouth of razor sharpened angle, be movably connected in the insert groove of annotating on the plug core by bearing pin downwards by the bearing pin through hole on it, and by end thereafter the lower end circle of active head is socketed in the counterbore of annotating plug core upper surface and does the slip socket, to dissect blade be the axle center relatively with the bearing pin, form the lever swing connection with active head for the power that swings up and down; Described gum cover is made for the plastics soft material, in it circle, bottom shape all cooperate annotate plug core external shape closely cover be connected on and annotate on the plug core, and axially be provided with one and go up the R groove that protrudes the R groove in the footpath with respect to annotating on the plug core cylindrical axially the cylindrical of the position of R groove, gum cover corresponding to circle in the syringe, the external diameter of gum cover and on the groove and the internal diameter of syringe and protrude the R groove and all make tight dimension of slide and cooperate.

2. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: the heavy wall splitting groove on the protrusion R groove on the axial inner diameter wall of described syringe and the cylindrical wall of syringe is answered the decussation setting of staggering.

3. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: the wall thickness of formation should be between 0.05mm～1.0mm between circle at the bottom of the heavy wall splitting groove on the described syringe cylindrical and in the syringe.

4. a self-destruction disposable syringe that cuts open according to claim 3 is characterized in that: the wall thickness of formation should be between 0.05mm～1.0mm between circle at the bottom of the described heavy wall splitting groove and in the syringe, and this width keeps in 0.5mm～5mm.

5. a self-destruction disposable syringe that cuts open according to claim 1, it is characterized in that: the described outer cutting edge of a knife or a sword mouth of razor sharpened angle that dissects also is downwards the axle center relatively with the bearing pin, connects for the power that swings up and down forms lever swing with active head, when swing for following straight flange level to the time, its relative wedge angle cutting edge of a knife or a sword mouth to syringe radius centered be slightly larger than or etc. be longer than radius at the bottom of the heavy wall splitting groove of syringe center to the syringe external diameter.

6. cut open a self-destruction disposable syringe according to claim 1 or 5, it is characterized in that: the described blade that dissects is the axle center with the bearing pin, connects for the power that swings up and down forms lever swing with active head, set and move the wedge angle cutting edge of a knife or a sword mouth that then dissects blade on the active head and offset downward to hide and go into to annotate in the chock plug, with the inwall non-contravention of syringe, promptly phase time wedge angle cutting edge of a knife or a sword mouth is to the radius of syringe radius centered at the bottom of less than the heavy wall splitting groove of syringe center to the syringe external diameter.

7. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: connect one at least on the described notes chock plug and dissect blade.

8. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: the described blade that dissects effectively dissects the length that mobile stroke promptly is set at heavy wall splitting groove on the syringe external diameter in syringe.

9. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: there is an assembling technology through hole at the center, circle footpath of described active head.

10. a self-destruction disposable syringe that cuts open according to claim 1 is characterized in that: the notes chock plug that described push-pull bar screws connection is that the front end head threaded hole by the external spiral tooth of annotating active epimere on the chock plug and push-pull bar screws and is connected.