CN105288790B - Syringe - Google Patents
Syringe Download PDFInfo
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- CN105288790B CN105288790B CN201410298104.5A CN201410298104A CN105288790B CN 105288790 B CN105288790 B CN 105288790B CN 201410298104 A CN201410298104 A CN 201410298104A CN 105288790 B CN105288790 B CN 105288790B
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Abstract
The present invention is a kind of syringe,It is used to combine flask for medicinal preparations with syringe needle,The syringe includes outer protecting shell,Engagement collar,Medicine bottle sheath body,Inner sleeve,Bidirectional screw guide wire group,Be spirally connected ring,Single direction ratchet,Spiral handspike and injection putter group,Engagement collar is set on outer protecting shell front end,And set flask for medicinal preparations with reference to medicine bottle sheath body group,Group sets inner sleeve inside outer protecting shell,Bidirectional screw guide wire group,Be spirally connected ring,Single direction ratchet,Spiral handspike and injection putter group etc.,It can be directly to quick post-tensioning injection putter group,Again directly to pressing injection putter group injection,And it is constructed using the big screw pitch stroke of bidirectional screw guide wire group,The fine pitch stroke arranged in pairs or groups between bolted joint and spiral handspike constructs,Will directly spinning force be converted to pressing strength,The injection thrust rotated to small stroke is converted with reference to big stroke rotary thrust,Reach the purpose of calibrated shot medicament,And the effect of laborsaving, is reached with the easy mode of operation of circulating open close.
Description
Technical field
The present invention relates to a kind of syringe, espespecially one kind has both security control injection dosage function and rapid operation work(
The syringe of energy.
Background technology
Mesh is used in order to which in response to medicament calibrated shot, counting frequency injection and syringe recycling etc. limited can be repeated
, the syringe being currently known generally has metering type syringe and two kinds of patterns of metering type syringe.It is known that metering type note
In emitter composition construction, mainly connected in the driving mechanism one group is installed in a syringe shell be made of multiple driving parts
So as to installing flask for medicinal preparations in syringe shell, syringe needle is installed in syringe shell front end for one push rod, and syringe needle connects flask for medicinal preparations,
When injection, syringe needle is pierced into human body predetermined position, through pressing putting back-end, makes push rod via the driving part for driving driving mechanism
Connecting move control, and then the piston in flask for medicinal preparations is pushed to move scheduled stroke and pass through the medicament that syringe needle exports predetermined close.
Though aforementioned known metering type syringe achievees the purpose that quantitative output medicament, which is using operation
In the process, because of the containing interlocked between each driving part of the driving mechanism for being limited to syringe, the syringe is caused in injection medicament
When have operation it is laborious the problem of.
Invention content
The object of the present invention is to provide a kind of syringes, and to solve, the existing metering type injector operations of improvement are laborious to ask
Topic.
Technical solution proposed by the invention is：A kind of syringe is provided, is to make with reference to flask for medicinal preparations with syringe needle
With the syringe is to include：
One outer protecting shell is the ducted body that a front and rear end forms opening；
One engagement collar is to be mounted on outer protecting shell front end, has an internal ring portion inside the engagement collar, shape in the internal ring portion
There is unidirectional ratchet slot of multiple monocline to ratchet into one；
One medicine bottle sheath body is to be connected to engagement collar front end, the flask for medicinal preparations to be fixed wherein, medicine bottle sheath body front end
Group removable group is covered for the syringe needle thereon；
One inner sleeve, is mounted in outer protecting shell, which is fixed in engagement collar；
One two-way spiral-guide pipe group, it includes an external spiral conduit and an internal spiral conduits, external spiral conduit is installed in
In inner sleeve, the external spiral conduit includes a screwed pipe portion and one forms in the pipe end of screwed pipe portion front end, screwed pipe portion inner circumferential
Wall forms a helical guide groove, and pipe end peripheral surface forms multiple monocline to ratchet shrapnel, those ratchet shrapnels are connected to engagement respectively
The monocline of the unidirectional ratchet slot of lantern ring makes external spiral conduit be only capable of single direction rotation on ratchet, and the internal spiral conduits are installed in
In inner sleeve and external spiral conduit, internal spiral conduits leading portion peripheral surface is equipped with multiple spiral guide blocks, spiral guide block merging external spiral
The helical guide groove of conduit enables internal spiral conduits to rotate a predetermined stroke distance of advancing, internal spiral conduits in external spiral conduit
One is formed inside back segment has unidirectional ratchet slot of multiple monocline to ratchet；
One is spirally connected ring, be group setting in the pipe end of external spiral conduit, this, which is spirally connected in ring, forms a screw hole；
One single direction ratchet is mounted in the unidirectional ratchet slot of internal spiral conduits, the single direction ratchet include a wheel body and
Multiple monocline for forming in wheel body peripheral surface form a mesoporous to ratchet shrapnel in wheel body, the monocline of the single direction ratchet is to spine
Tooth shrapnel is meshed with the monocline in the unidirectional ratchet slot of the internal spiral conduits to ratchet；
One spiral handspike it includes there is dose control section, is equipped with screw thread, in spiral handspike in dosage control section peripheral surface
Axis hole is formed, spiral handspike is mounted in bidirectional screw guide wire group, and the dosage control section of spiral handspike is spirally connected by being spirally connected
Inside ring, and thrust is imposed to stretch into the flask for medicinal preparations；And
One injection putter group, it includes an injection putter and a push rod end cap, injection putter is set on comprising a body of rod with one
The pressing end of body of rod rear end, the body of rod of injection putter, which passes through, to be fixed in the mesoporous of single direction ratchet, and the body of rod is axially to slide
It is arranged in the axis hole of spiral handspike with moving, the body of rod rear end and press-side portion of injection putter are located at outside internal spiral conduits, push rod
End cap is sheathed on the outside of the pressing end of injection putter, and internal spiral conduits rear end is hubbed in push rod end cap, makes injection putter group
With reference to single direction ratchet, bidirectional screw guide wire group, be spirally connected ring and the action of spiral handspike energy circulating open close.
In syringe as described above, the inner sleeve rear end forms a check key and a limiting block edge, the interior spiral shell
Rotation conduit back segment peripheral surface forms multiple check ring grains and the axial channel equipped with a predetermined length, and check bond energy supports and terminates in interior spiral shell
It revolves and internal spiral conduits advance the puck is prevented at the check ring grain of conduit, and at check key transformation to axial channel, lead inside spin
Pipe can limit the position moved after internal spiral conduits by driving advance the puck, the limiting block edge.
In syringe as described above, the axis hole of spiral handspike and the body of rod shape of injection putter are corresponding not rounded
Shape.
In syringe as described above, the ring peripheral surface that is spirally connected forms an axially extending positioning convex portion, the outer spiral shell
The pipe end inner wall for revolving conduit forms location indentations, and by the combination of corresponding positioning convex portion and location indentations, the ring that makes to be spirally connected is determined
In the pipe end of external spiral conduit.
In syringe as described above, the engagement collar front and back end is respectively that an engaging ring portion and one group connect ring portion, is connect
The merging of cyclization portion is mounted in outer protecting shell, and the engagement collar is equipped with multiple grabs, engagement between internal ring portion and engaging ring portion
Lantern ring installs an inner collar between engaging ring portion and internal ring portion；The inner sleeve stretches into the front end inside engagement collar and is equipped with card
Slot, the grab correspondence that card slot provides engagement collar are caught in wherein, and inner collar is sheathed on the outside of grab, makes inner sleeve and engagement collar
Engagement is fixed.
In syringe as described above, a piston jacking block is installed in the dosage control section front end of the spiral handspike.
The attainable beneficial functional of the present invention is to construct invention by the entire combination of said injector device, makes the syringe group
After filling flask for medicinal preparations, after the upper syringe needle of installing, injection putter rapidly can be pulled to preparatory injection position in a manner of directly pulling back,
And when directly to pressing injection putter group, pass through the big spiral shell of the spiral guide block of the helical guide groove and internal spiral conduits of external spiral conduit
Away from stroke composite construction, the screw hole for bolted joint of arranging in pairs or groups and the screw thread of spiral handspike are fine pitch stroke composite construction, by directly to
Pressing strength is converted to spinning force, and the injection thrust of small stroke rotation is converted to by big stroke rotary thrust, does not only reach
The purpose of calibrated shot medicament and good safety in utilization, and the syringe by injection putter group in use, combined unidirectional
The interlinked mechanism invention of ratchet, bidirectional screw guide wire group, be spirally connected ring and spiral handspike, makes its operating process in calibrated shot
In, can the effect of laborsaving, be reached with the easy mode of operation of circulating open close.
The present invention can also make the injection by the composite construction of the check ring grain of the check key and internal spiral conduits of inner sleeve
The injection putter group of device must be drawn out to precalculated position backwards, can press injection putter group and be injected, and pass through inner sleeve
The check ring grain of rear end check key collocation internal spiral conduits peripheral surface generates the function of blocking limiting, is noted in internal spiral conduits companion
Penetrating the midway that push rod group is drawn out will not bounce back because of accidentally being pressed, it is ensured that injection dosage can all reach and sets the syringe each time
Determine injection dosage.
In addition, syringe of the present invention in the state of making the syringe that must unload syringe needle, can cover also comprising a pen cover
Pen cover, it is ensured that syringe is each time using the syringe needle that all can more renew.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein,
Fig. 1 is a preferred embodiment of syringe of the present invention and the perspective exploded view of syringe needle, needle cover.
Fig. 2 is the perspective exploded view of another watching angle of component home in syringe shown in Fig. 1.
Fig. 3 be syringe preferred embodiment shown in Fig. 1 and Fig. 2 without syringe needle, cover pen cover when diagrammatic cross-section.
Fig. 4 is the side elevational cross-section schematic diagram of the A-A of cutting line position shown in Fig. 3.
Fig. 5 is the side elevational cross-section schematic diagram of the B-B of cutting line position shown in Fig. 3.
Fig. 6 be syringe preferred embodiment shown in Fig. 1 to Fig. 3 remove medicine bottle sheath body and with pen cover, syringe needle, needle cover
Decomposition diagram.
Fig. 7 is that syringe preferred embodiment shown in Fig. 1 to Fig. 3 removes pen cover, loads onto syringe needle and needle cover and pulls out push rod
Diagrammatic cross-section during to precalculated position.
Fig. 8 is that syringe preferred embodiment shown in Fig. 1 to Fig. 3 pulls up needle cover, cuing open when pressing push rod and starting injection
Face schematic diagram.
Fig. 9 is that section of syringe preferred embodiment shown in Fig. 1 to Fig. 3 when pressing push rod injection quantitative pharmacy and finishing shows
It is intended to.
Drawing reference numeral explanation：
1 syringe, 2 flask for medicinal preparations
3 syringe needle of 2A pistons
4 needle cover, 5 pen cover
10 outer protecting shell, 11 binding end
20 engagement collar, 21 engaging ring portion
22 groups connect 23 internal ring portion of ring portion
24 unidirectional ratchet slot, 25 grab
26 inner collars
30 medicine bottle sheath bodies
40 inner sleeve, 41 card slot
42 check keys 43 limit block edge
50 bidirectional screw guide wire group, 51 external spiral conduit
511 screwed pipe portion, 512 ring end wall
513 pipe end, 514 helical guide groove
515 ratchet shrapnel, 516 location indentations
52 internal spiral conduits, 521 spiral guide block
522 check ring grain, 523 axial channel
524 unidirectional ratchet slot, 525 articulated section
60 are spirally connected 61 screw hole of ring
62 positioning convex portions
70 single direction ratchet, 71 wheel body
72 monocline are to 73 mesoporous of ratchet shrapnel
80 spiral handspike, 81 dosage control section
82 defining flange, 83 axis hole
84 piston jacking blocks
90 injection putter group, 91 injection putter
911 bodies of rod 912 press end
913 position block, 92 push rod end cap
Specific embodiment
With the following drawings and preferred embodiments of the present invention, the present invention is further explained to reach predetermined goal of the invention institute
The technological means taken.
As shown in Figures 1 and 2, it is the preferred embodiment that discloses syringe of the present invention, which is to combine medicine
Agent bottle 2 is used with syringe needle 3, needle cover 4, and the composition of the syringe 1 is mainly comprising an outer protecting shell 10, an engagement collar 20, a medicine
Bottle cover shell 30, an inner sleeve 40, a two-way spiral-guide pipe group 50, one are spirally connected ring 60, a single direction ratchet 70, a spiral handspike 80
And an injection putter group 90, alternatively, the syringe 1 further comprises a pen cover 5.
As shown in Figures 1 and 2, the outer protecting shell 10 is the ducted body that a rear and front end all forms opening, before outer protecting shell 10
It holds as binding end 11.
As shown in Figure 1 and Figure 2, the engagement collar 20 includes 21, one groups of an engaging ring portion and connects 22 and one inner ring of ring portion
Portion 23, described group connects ring portion 22 and is located at 20 front and rear end of engagement collar respectively with engaging ring portion 21, and internal ring portion 23 is located at engagement
The inside of lantern ring 20, the engagement collar 20 and 11 internal combination of binding end that outer protecting shell 10 is placed in engaging ring portion 21, the inner ring
One is then formed in portion 23 has unidirectional ratchet slot 24 of multiple monocline to ratchet.As shown in figure 3, in this preferred embodiment, institute
It states engagement collar 20 and multiple grabs 25 is equipped between internal ring portion 23 and engaging ring portion 21, the engagement collar 20 is in engaging ring portion
An inner collar 26 can be also further installed between 21 and internal ring portion 23.
As shown in Figure 1 and Figure 2, the medicine bottle sheath body 30 is mounted on the engaging ring portion 21 of 20 front end of engagement collar, to
One flask for medicinal preparations 2 is fixed wherein.30 front end of medicine bottle sheath body for 3 sets of groups of a syringe needle thereon.
As shown in Figure 1 to Figure 3, the inner sleeve 40 is mounted in inside outer protecting shell 10, which, which stretches into, connects
It in the engaging ring portion 21 of trap ring 20, and is socketed on 23 outside of internal ring portion and fixes, in this preferred embodiment, inner sleeve 40 stretches into
Front end in engagement collar 20 is equipped with card slot 41, and the correspondence of grab 25 that card slot 41 provides engagement collar 20 is caught in wherein, and by interior
Ring 26 is sheathed on 25 outside of grab, and inner sleeve 40 is made to engage fixation with engagement collar 20, and the rear end of inner sleeve 40 can then stretch
Go out outside outer protecting shell 10,40 rear end of inner sleeve forms a check key 42 and limiting block edge 43.
As shown in Figure 1 to Figure 3, the bidirectional screw guide wire group 50 includes an external spiral conduit 51 and an inside spin is led
Pipe 52, the external spiral conduit 51 are mounted in inner sleeve 40, and external spiral conduit 51 includes a screwed pipe portion 511, screwed pipe portion
511 front ends form a ring end wall 512 and the pipe end 513 protruded out forward from ring end wall 512, and 511 internal perisporium of screwed pipe portion forms one
Helical guide groove 514, peripheral surface forms multiple monocline to ratchet shrapnel 515 in pipe end 513, and 513 inner wall of pipe end is equipped with one and axial prolongs
The location indentations 516 stretched, as shown in Figures 3 and 4, the pipe end 513 of external spiral conduit 51 stretch into the internal ring portion 23 of engagement collar 20
In, those ratchet shrapnels 515 are connected to the monocline of the unidirectional ratchet slot 24 of engagement collar 20 on ratchet respectively, lead external spiral
Pipe 51 is only capable of single direction rotation.
As shown in Figure 1 to Figure 3, in the bidirectional screw guide wire group 50, the internal spiral conduits 52 are mounted in inner sleeve
In pipe 40 and external spiral conduit 51, which is equipped with multiple spiral guide blocks 521, and with spiral guide block
The helical guide groove 514 of 521 merging external spiral conduits 51, by the cooperation of spiral guide block 521 and helical guide groove 514, makes inside spin
Conduit 52 can rotate a predetermined stroke distance of advancing in external spiral conduit 51, and 52 back segment peripheral surface of internal spiral conduits forms multiple
Spaced check ring grain 522, and with a predetermined length axial channel 523, the check ring grain 522 for monocline to,
One is formed inside 52 back segment of internal spiral conduits has unidirectional ratchet slot 524 of multiple monocline to ratchet, the unidirectional ratchet slot 524
Monocline to ratchet and the unidirectional ratchet slot 24 in engagement collar 20 monocline to ratchet be identical oblique, 52 rear end of internal spiral conduits
Form an articulated section 525, the articulated section 525 of internal spiral conduits 52 can be stretched out outside 40 rear end of inner sleeve, 40 rear end of inner sleeve it is inverse
Only key 42 can shift one's position in the check ring grain 522 of 52 back segment of internal spiral conduits and between stretching into axial channel 523.Such as Fig. 3 and Fig. 5
Shown, when check key 42 is stretched into axial channel 523, internal spiral conduits 52 advance the puck, check key 42 can abut in an axial direction
During the check ring grain 522 of internal spiral conduits 52, then internal spiral conduits 52 can be prevented accidentally to be pressed and axial linear movement facing forward.
As shown in Figure 1 to Figure 3, the ring 60 that is spirally connected is can be axially installed in the pipe end 513 of external spiral conduit 51, the spiral shell
It connects into a screw hole 61 in ring 60, the screw pitch of screw hole 61 is less than the screw pitch of helical guide groove 514.In this preferred embodiment, be spirally connected ring
60 peripheral surfaces form an axially extending positioning convex portion 62, and 516 corresponding matching of location indentations with external spiral conduit 51 makes spiral shell
Ring 60 is connect to combine with external spiral conduit 51.
As shown in Figure 1 to Figure 3, the single direction ratchet 70 is mounted in the unidirectional ratchet slot 524 of the internal spiral conduits 52
In, which includes a wheel body 71 and multiple monocline for forming in 71 peripheral surface of wheel body to ratchet shrapnel 72, wheel
A mesoporous 73 is formed in body 71,73 shape of mesoporous corresponds to the non-circular axis hole of spiral handspike 80, the monocline of the single direction ratchet 70
To the monocline of ratchet shrapnel 72 and 51 pipe end 513 of external spiral conduit to ratchet shrapnel 515 be identical oblique, as shown in figure 5, described
Unidirectional ratchet of the monocline of single direction ratchet 70 into unidirectional ratchet slot 524 of the ratchet shrapnel 72 with the internal spiral conduits 52 is mutually nibbled
It closes.
As shown in Figure 1 to Figure 3, the spiral handspike 80 has dose control section 81, in 81 peripheral surface of dosage control section
Equipped with screw thread, 80 stage casing of spiral handspike forms defining flange 82 in the lateral margin of dosage control section 81, is formed in spiral handspike 80 non-
Circular axis hole 83, spiral handspike 80 are provided in bidirectional screw guide wire group 50,81 spiral shell of dosage control section of spiral handspike 80
It connected and was spirally connected inside ring 60, and can stretch into and piston 2A is directly pushed against in flask for medicinal preparations 2, alternatively, the dosage of the spiral handspike 80
81 front end of control section can install a piston jacking block 84, make spiral handspike 80 via in piston jacking block 84 indirectly pushing and pressing flask for medicinal preparations 2
Piston 2A.
As shown in Figure 1 to Figure 3, the injection putter group 90 includes an injection putter 91 and a push rod end cap 92, the note
Penetrate that push rod 91 includes a body of rod 911 and a pressing end 912 for being set on 911 rear end of the body of rod, the section configuration of the body of rod 911 are corresponding
73 shape of non-circular mesoporous in non-circular axis hole 83 and single direction ratchet 70 in spiral handspike 80, in this preferred embodiment
In, the non-circular section shape of the body of rod 911 is gear shape, polygon or is other geometries, and injection putter 91 is with it
The body of rod 911 axially can slippingly be arranged in the axis hole 83 of spiral handspike 80, and the body of rod 911 is passed through in the mesoporous 73 of single direction ratchet 70
It is fixed, wherein by forming a position block 913 on the body of rod 911, single direction ratchet 70 is fixed on by bar with position block 913
On body 911, the rear end that the body of rod 911 of injection putter 91 has pressing end 912 is stretched out outside internal spiral conduits 52, the push rod end cap
92 be 912 outside of pressing end for being sheathed on injection putter 91, and the articulated section of 52 rear end of internal spiral conduits is hubbed at push rod end cap
In 92.
It is in medicine bottle set when assembling flask for medicinal preparations 2 as shown in Figure 3 and Figure 6 about the use situation of syringe of the present invention
The one end of flask for medicinal preparations 2 with piston 2A is stretched into engagement collar 20 and positioned by the state that shell 30 removes, 80 side of spiral handspike
Piston jacking block 84 stretches into and piston 2A is abutted in flask for medicinal preparations 2, then medicine bottle sheath body 30 is sheathed on 2 outside of flask for medicinal preparations, passes through medicine bottle set
Shell 30 and the combination for combining lantern ring 20, make flask for medicinal preparations 2 be fixed in syringe 1.When not injecting, 4 non-groups of syringe needle 3 and needle cover
In a state that group on medicine bottle sheath body 30 connects flask for medicinal preparations 2, pen cover 5 is first sheathed on 30 outside of medicine bottle sheath body.
When preparing injection, as shown in Fig. 3 and Fig. 7, pen cover 5 is removed, loads onto syringe needle 3 and needle cover 4,3 one end of syringe needle is inserted into
In flask for medicinal preparations 2, and user is avoided accidentally to be pierced by syringe needle 3 in 3 outside of syringe needle by 4 the cover of needle cover.Secondly, by injection putter
90 are organized axially towards rear directly to quickly pulling open to precalculated position, until the spiral guide block 521 of 52 peripheral surface of internal spiral conduits moves
Stopping is blocked to 40 rear end of contact inner sleeve limiting block edge 43.During the drawing after 90s of injection putter group, while in drive
Spiral duct 52 moves and generates idle running in 51 inside of external spiral conduit backwards, and the check key 42 of 40 rear end of inner sleeve can be in interior spiral shell
It revolves and generates spring at the check ring grain 522 of conduit 52 and sound occurs, and the check key 42 for passing through 40 rear end of inner sleeve is connected to
It is limited at the check ring grain 522 of internal spiral conduits 52, generates and injection putter group 90 is prevented accidentally to be pressed and drive internal spiral conduits 52
The function of axial linear movement facing forward makes injection putter group 90 accidentally not pressed and bounced back during pulling out backwards.
When injection, as can be seen from figures 8 and 9, needle cover is pulled up, the predetermined injection site of human body is pierced into, then press with syringe needle 3
Injection putter group 90 starts to inject, wherein by the action directly to pressing injection putter group 90 facing forward, and via push rod end cap 92
Internal spiral conduits 52 are pushed, wherein, the check key 42 of 40 rear end of inner sleeve enters at the axial channel 523 of internal spiral conduits 52,
Make internal spiral conduits 52 can be with injection putter group 90 together forward directly to movement, while pass through the spiral shell of 52 peripheral surface of internal spiral conduits
The rotation driving external spiral of guide block 521 conduit 51, which pinpoints, forward to be rotated, until internal spiral conduits 52 are completed to advance in external spiral conduit 51
One stroke distance, injection putter group 90 are stretched into outer housing 10 and are closed, and external spiral conduit 51 when forward rotating drives and is spirally connected together
Ring 60 rotates, and is rotationally advancing via the rotation driving spiral handspike 80 of ring 60 that is spirally connected and the piston 2A in flask for medicinal preparations 2 is imposed and is pushed away
Power makes the medicament in flask for medicinal preparations 2 pass through syringe needle 3 and exports.
In aforementioned, by the helical guide groove 514 of 51 inside predetermined stroke distance of external spiral conduit with outside internal spiral conduits 52
The cooperation of the spiral guide block 521 of circumferential surface and the ring 60 that is spirally connected being installed in external spiral conduit 51 are spirally connected the matching of spiral handspike 80
It closes, pressing injection putter group 90 is made once to be only capable of directly to the distance for promoting the predetermined stroke, and the ring 60 that is spirally connected is driven to drive spiral
Push rod 80 turns around with dynamic rotation to be stopped, and then control the injection dosage of the output setting of flask for medicinal preparations 2.On the other hand, pass through outer spiral shell
The big screw pitch stroke composite construction of the helical guide groove 514 of conduit 51 and the spiral guide block 521 of internal spiral conduits 52 is revolved, collocation is spirally connected
The screw hole of ring 60 is fine pitch stroke composite construction with the screw thread of spiral handspike 80, and is converted to small row with big stroke rotary thrust
The injection thrust of Cheng Xuanzhuan makes the syringe 1 have effects that during use laborsaving.
After injection, needle cover 4 is first sleeved on 3 outside of syringe needle, then pull up syringe needle 3 and needle together from syringe 1
Pen cover 5 is covered on 30 outside of medicine bottle sheath body of syringe 1, it is ensured that use next time, the syringe needle 3 that all can more renew makes by skull 4
With.The syringe 1 is in use, by the combination of injection putter group 90 single direction ratchet 70, bidirectional screw guide wire group 50, be spirally connected ring
60 invent with the interlinked mechanism of spiral handspike 80, make in its operating process in calibrated shot each time, can be with circulating open close side
Formula operates with convenient for user's.The thread turns of another 81 peripheral surface of dosage control section using spiral handspike 80 and screw pitch according to
Agent capacity setting frequency injection and injection dosage in flask for medicinal preparations 2, make the syringe 1 have fixed dosage injection with it is automatic
The function that metering uses.When 1 access times of syringe for being installed with flask for medicinal preparations 2 reach pre-determined number, the medicine in flask for medicinal preparations 2
Agent is just used up, at this point, abandoning syringe 1, the syringe 1 is avoided to be overused.
The above is only presently preferred embodiments of the present invention, and limitation in any form is not done to the present invention, though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention, any technology people for being familiar with this profession
Member, in the range of technical solution of the present invention is not departed from, when the technology contents using the disclosure above make a little change or repair
The equivalent embodiment for equivalent variations is adornd, as long as being the content without departing from technical solution of the present invention, technology according to the present invention is real
Any simple modification, equivalent change and modification that confrontation above example is made still falls within the range of technical solution of the present invention
It is interior.
Claims (6)
1. a kind of syringe is to be used to combine flask for medicinal preparations with syringe needle, which is characterized in that the syringe includes：
One outer protecting shell is the ducted body that a front and rear end forms opening；
One engagement collar is to be mounted on the outer protecting shell front end, has an internal ring portion, the internal ring portion inside the engagement collar
It is middle to form one with unidirectional ratchet slot of multiple monocline to ratchet；
One medicine bottle sheath body is to be connected to the engagement collar front end, and the flask for medicinal preparations to be fixed wherein, the syringe needle can be torn open
Group ground set group is in the medicine bottle sheath body front end；
One inner sleeve is mounted in the outer protecting shell, and the inner sleeve front end is fixed in the engagement collar；
One two-way spiral-guide pipe group, it includes an external spiral conduit and an internal spiral conduits, the external spiral conduit is installed in
In the inner sleeve, the external spiral conduit includes a screwed pipe portion and one forms in the pipe end of screwed pipe portion front end, institute
It states screwed pipe portion internal perisporium and forms a helical guide groove, the pipe end peripheral surface forms multiple monocline to ratchet shrapnel, the ratchet bullet
Piece is connected to the monocline of the unidirectional ratchet slot of the engagement collar on ratchet respectively, and the external spiral conduit is made to be only capable of list
To rotation, the internal spiral conduits are installed in the inner sleeve and the external spiral conduit, outside the internal spiral conduits leading portion
Circumferential surface is equipped with multiple spiral guide blocks, and the spiral guide block is placed in the helical guide groove of the external spiral conduit, makes the interior spiral shell
Rotation conduit can rotate travelings in the external spiral conduit, inside the internal spiral conduits back segment formation one with multiple monocline to
The unidirectional ratchet slot of ratchet；
One is spirally connected ring, be group setting in the pipe end of the external spiral conduit, described be spirally connected in ring forms a screw hole；
One single direction ratchet is mounted in the unidirectional ratchet slot of the internal spiral conduits, and the single direction ratchet includes a wheel
Body and multiple monocline for forming in the wheel body peripheral surface form a mesoporous to ratchet shrapnel in the wheel body, described unidirectional
Monocline of the monocline of ratchet into unidirectional ratchet slot of the ratchet shrapnel with the internal spiral conduits is meshed to ratchet；
One spiral handspike it includes there is dose control section, is equipped with screw thread, the spiral is pushed away in the dosage control section peripheral surface
Axis hole is formed in bar, the spiral handspike is mounted in the bidirectional screw guide wire group, described dose of the spiral handspike
Amount control section is spirally connected by inside the ring that is spirally connected, and impose thrust to stretch into the flask for medicinal preparations；And
One injection putter group, it includes an injection putter and a push rod end cap, the injection putter is set on comprising a body of rod with one
The pressing end of the body of rod rear end, the body of rod of the injection putter pass through the mesoporous for being fixed in the single direction ratchet
In, and the body of rod is axially slippingly to be arranged in the axis hole of the spiral handspike, the injection putter it is described
Body of rod rear end and the press-side portion are located at outside the internal spiral conduits, and the push rod end cap is sheathed on the institute of the injection putter
It states on the outside of pressing end, the internal spiral conduits rear end is hubbed in the push rod end cap, makes the injection putter group combination institute
Single direction ratchet, the bidirectional screw guide wire group, the ring that is spirally connected is stated to act with the spiral handspike energy circulating open close.
2. syringe according to claim 1, which is characterized in that the inner sleeve rear end forms a check key and a limit
Position block edge, the internal spiral conduits back segment peripheral surface form multiple check ring grains and equipped with an axial channel, the check bond energys
To the prevention internal spiral conduits advance the puck at the check ring grain for terminating in the internal spiral conduits, and the check key becomes
It shifts at the axial channel, enabling the internal spiral conduits, the limiting block edge limits the interior spiral shell by driving advance the puck
The position moved after rotation conduit.
3. syringe according to claim 1 or 2, which is characterized in that the axis hole of the spiral handspike and the note
The body of rod shape for penetrating push rod is corresponding non-circular.
4. syringe according to claim 1 or 2, which is characterized in that it is axially extending that the ring peripheral surface that is spirally connected forms one
Positioning convex portion, the pipe end inner wall of the external spiral conduit forms location indentations, passes through the corresponding positioning convex portion
And the combination of the location indentations makes the ring that is spirally connected be positioned in the pipe end of the external spiral conduit.
5. syringe according to claim 4, which is characterized in that the engagement collar front and back end is respectively an engaging ring portion
Ring portion is connect with one group, the engaging ring portion merging is mounted in the outer protecting shell, and the engagement collar is in the internal ring portion and institute
It states and multiple grabs is equipped between engaging ring portion, the engagement collar is installed between the engaging ring portion and the internal ring portion in one
Ring；The inner sleeve stretches into the front end inside the engagement collar equipped with card slot, and the card slot provides the engagement collar
The grab correspondence is caught in wherein, and the inner collar is sheathed on the outside of the grab, makes the inner sleeve and the engagement collar
Engagement is fixed.
6. syringe according to claim 5, which is characterized in that the dosage control section front end installing one of the spiral handspike
Piston jacking block.
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| CN201410298104.5A CN105288790B (en) | 2014-06-26 | 2014-06-26 | Syringe |
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| CN201410298104.5A CN105288790B (en) | 2014-06-26 | 2014-06-26 | Syringe |
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| CN105288790B true CN105288790B (en) | 2018-07-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797242B (en) * | 2016-05-10 | 2021-11-30 | 苏州翰尔西医疗器械开发有限公司 | Syringe with a needle |
| CN105944186B (en) * | 2016-05-18 | 2019-08-02 | 苏州鹏烨医疗科技有限公司 | A kind of injection pen |
| CN106039475B (en) * | 2016-05-18 | 2019-08-02 | 苏州鹏烨医疗科技有限公司 | A kind of injection pen |
| CN110139690A (en) * | 2016-11-08 | 2019-08-16 | 医疗品牌研究有限公司 | Applicator device |
| US20200046906A1 (en) * | 2017-02-24 | 2020-02-13 | Cc Biotechnology Corporation | Injection Device Having a Capability of Controlling Injection Dose |
| CN110811910B (en) * | 2019-12-02 | 2021-11-12 | 余丽君 | Injection device capable of quickly replacing plug and reducing labor intensity |
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