CN110384842A - Filter syringe - Google Patents
Filter syringe Download PDFInfo
- Publication number
- CN110384842A CN110384842A CN201811020751.4A CN201811020751A CN110384842A CN 110384842 A CN110384842 A CN 110384842A CN 201811020751 A CN201811020751 A CN 201811020751A CN 110384842 A CN110384842 A CN 110384842A
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- CN
- China
- Prior art keywords
- syringe
- injection
- filter
- component
- path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3145—Filters incorporated in syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Filter syringe according to the present invention includes: syringe, is formed in conjunction with pipe, so as in conjunction with injection needle；Filter portion, the inside of the syringe is set, and including first path and the second path, the first path is flowed into injection inside the syringe by the injection needle, and second path is formed in the central part of the first path and is discharged to the outside injection from the syringe；And piston, the combination shaft component that can be integrated to the filter portion is formed in front of the piston, in the state that at least part of the piston is inserted into the syringe inside, the piston is forwards or rear is mobile, so that injection is flowed into inside the syringe or is discharged to outside the syringe, also, the filter portion includes.
Description
Technical field
The present invention relates to a kind of filter syringes.
Background technique
In general, syringe is used to acquire blood from the blood vessel of patient or acquires the body fluid in addition to blood in vivo.It is another
Aspect, syringe be used for by drug be directly injected into it is intravascular or by drug injection to intramuscular or subcutaneously etc..
That is, syringe can be used for collection of body fluids in vivo or be injected in vivo injection.
On the other hand, when being injected in vivo injection by syringe, in order to be mounted in glass ampule or mounted in band
There is the drug of the vial of rubber stopper to be moved in syringe, the upper end of glass ampule is cut off, the portion cut off is passed through
Divide insertion injection needle, to suck to the drug that will be injected.
The injection needle of the syringe so used is covered with protective cap, is then discarded.At this point, using syringe sometimes
Doctor or nurse be injected needlestick injuries, moreover, in the treatment process of wasted syringes, sometimes due to covering in injection needle
Protective cap is by separation and waste treatment people is also injected needlestick injuries.
In the case, when syringe handles people or waste treatment people is used for such as Type B infected patient or AIDS patient
When stabbing Deng the injection needle of patient with infectious pathogen, there are problems that superinfection.
Also, in Sucked medicines such as ampoules, there is such as glass particle foreign matter and enter after syringe inside, infused
A possibility that being mapped to human body.
(existing technical literature)
(patent document)
(patent document 1) KR published patent application number 10-2018-0028811
Summary of the invention
Technical problem
It is an object of the invention to provide following filter syringe to solve the above-mentioned problems, that is, will inject
When liquid is injected into human body, makes injection by filter component, so that injection process is easy, and the glass of ampoule can be prevented in advance
Glass particle etc. is injected into patient.
Solution to problem
In order to achieve the above object, filter syringe of the invention may include: syringe, is formed with and combines pipe, so as to
In conjunction with injection needle；Filter portion, is arranged in the inside of the syringe, and including first path and the second path, and described
One path is flowed into injection inside the syringe by the injection needle, and second path is formed in the first via
The central part of diameter and it is discharged to the outside injection from the syringe；And piston, it is formed with and can tie in front of the piston
The combination shaft component for closing the filter portion is inserted into the state inside the syringe at least part of the piston
Under, the piston is forwards or rear is mobile, so that injection is flowed into inside the syringe or is discharged to outside the syringe,
Also, the filter portion may include: check-valves, be connected with the injection needle, and injection is made to pass through the first via
Diameter flows into, and the injection is discharged by second path by stopping up the first path；Filter component, if
It sets on second path, to be filtered to the injection being discharged by second path；And filter body, institute
The side for stating filter body is formed with the holding tank accommodated for the filter component, so as to be contained in the institute of the holding tank
It states filter component to be close to the check-valves, also, can be formed with to radial outside on the inside of the rear of the combination pipe
Multiple inflow slots could be formed with endless groove, the endless groove and the multiple inflow in the posterior end portion of the combination pipe
Slot end is all connected to and is recessed forwards for injection inflow, and the filter body could be formed with the one of outside outer rim
Multiple splitted grooves made of partial cut, the multiple splitted groove are connected to the endless groove, when injection flows into, injection
The multiple splitted groove can be made open by rearward pushing the check-valves, to be flowed into inside the syringe, also,
The check-valves may include: barrel member, shape cylindrical in shape；Column component is extended to form in the front central part of the barrel member,
The diameter of the column component more forwards more is reduced；And wing member, it is extended to form on the outside of the rear direction of the barrel member, and
And the filter body may include: outer barrel member, shape cylindrical in shape；And inner tubular member, it is connect with the outer barrel member, cloth
It sets inside the outer barrel member, also, the central part of the inner tubular member could be formed with the second tap, and described interior
It could be formed with the holding tank before barrel member, the outside outer rim of the outer barrel member could be formed with the multiple incision
Slot, when the injection flows into, injection can stop up the wing structure of the endless groove of the syringe by rearward pushing
Part keeps the multiple splitted groove open, be then flowed by the space between the splitted groove and the syringe inner wall described in
Inside syringe.
At this point, the central part in the barrel member and the column component could be formed with the first tap.
At this point, the side of the column component may include incision face, the incision face, which is formed with, cuts at least part
Made of cut-off lines, the injection flow into or be discharged when, be opened and closed the first row to the incision face property of can choose and go out
Hole.
At this point, the outer peripheral surface of the outer barrel member could be formed at least one locking groove, the inner peripheral surface of the syringe can
To be formed with fixed projection, the fixed projection can be integrated to the locking groove.
At this point, the piston may include washer, the washer is integrated to the front of the piston, and the washer is outer
It is close to inside circumferential surface and the syringe, the combination shaft component can be arranged in the inside of the washer, and so that the combination
The front of the front part of shaft component to washer mode outstanding is installed.
At this point, the combination shaft component may include: locking protrusion, it is formed in the front of the combination shaft component, to institute
The front for stating washer is prominent, to be integrated to the side of the filter component；And fastening member, it is formed in the combination shaft component
In the rear of locking protrusion, formed to radial outside is prominent.
At this point, the fastening member can be with shape in disk form, when the combination shaft component moves forwards, the fastening
Component moves forwards in the inside of the washer, to connect with the rear aspect of the washer.
At this point, the sectional area of the locking protrusion forwards more can more be reduced from rear, pass through the second tunnel in injection
After diameter discharge, the locking protrusion can penetrate through the filter component to be fixed, to prevent from reusing.
The effect of invention
It has the following effects that present invention as described above.
(1) present invention includes filter portion so that when injection to be injected into the inside of syringe, make injection without
Filter is crossed, in contrast, when injection is injected into patient, makes injection by filter, to be filtered to foreign matter,
To which injection process is easy, and foreign matter can be prevented to be injected into patient in advance.
(2) present invention includes combining shaft component, so that penetrating through after injection is injected into patient in conjunction with shaft component
Filter component is fixed, so as to preventing reusing for filter syringe.
Detailed description of the invention
Fig. 1 is the perspective view for showing the filter syringe of an embodiment according to the present invention.
Fig. 2 is the decomposition perspective view for showing the filter syringe of an embodiment according to the present invention.
Fig. 3 is the perspective view and sectional view for showing the check-valves of filter syringe of an embodiment according to the present invention.
Fig. 4 is perspective view and the section for showing the filter body of filter syringe of an embodiment according to the present invention
Figure.
Fig. 5 is the sectional view for showing the washer of filter syringe of an embodiment according to the present invention.
Fig. 6 is the combination shaft component perforation filter component for showing the filter syringe of an embodiment according to the present invention
Come the perspective view being fixed.
Fig. 7 is the section for showing the situation that injection is flowed into the filter syringe of an embodiment according to the present invention
Figure.
Fig. 8 is the section for showing the case where injection is discharged from the filter syringe of an embodiment according to the present invention
Figure.
Fig. 9 is the half section that the syringe of the filter syringe of an embodiment according to the present invention is cut into half to show
Perspective view.
Symbol description
1: syringe 10: syringe
10a: endless groove 10b: fixing groove
11: in conjunction with pipe 13: through-hole
15: flowing into 17: the first fixing groove of slot
19: the first support convex 20: piston
21: piston main body 22: in conjunction with shaft component
23: locking protrusion 25: fastening member
26: washer 26a: combined hole
27: the second fixing groove, 29: the second support convex
30: interface 31: fixing component
33: lid 35: injection needle
50: filter portion 51: check-valves
51a: the first tap 53: barrel member
55: wing member 57: column component
57a: face 57b: cut-off lines is cut
59: filter component 61: filter body
63: outer barrel member 63a: fixing groove
65: the 65a: the second tap of inner tubular member
65b: holding tank 67: splitted groove
Specific embodiment
Hereinafter, with reference to attached drawing, embodiments of the present invention is described in detail for meeting, so that the present invention can be by this field
Technical staff easily implements.It should be understood, however, that invention is not limited to these embodiments, and can be with a variety of other
Mode is implemented.In order to illustrate it is succinct, in the accompanying drawings, the component unrelated with description is omitted, and pass through full text, identical reference
The identical component of digital representation.
In the present specification, the terms such as " comprising " or " having " refer to that there are the feature recorded on specification, number, steps
Suddenly, movement, constituent element, component or these combination, it is to be understood that not to be prior to exclude one or other more than it
The presence of feature, number, step, movement, constituent element, component or these combination etc. or it is additional a possibility that.Also, such as
The part such as fruit layer, film, region, plate is described as be on other parts, then not only includes directly in the upper surface of other parts
Situation also includes the case where thering is other parts among it.On the contrary, if the part such as layer, film, region, plate is described as be in it
Under his part, then not only include the case where directly below other parts, also includes feelings among it with other parts
Condition.
Fig. 1 is the perspective view for showing the filter syringe of an embodiment according to the present invention.Fig. 2 is to show according to this hair
The decomposition perspective view of the filter syringe of a bright embodiment.
It in the following description, will be from lid court from fig. 1, the side from piston towards lid is defined as front
It is defined as rear to the side of piston, injection refers to the substance for mixing the foreign matters such as medical fluid and glass particle.
Referring to Figures 1 and 2, the filter syringe 1 of an embodiment according to the present invention may include interface 30, syringe
10, piston 20 and filter portion 50.At this point, the filter syringe 1 of an embodiment according to the present invention includes filter portion 50,
So that make injection without filter component 59 when injection to be injected into the inside of syringe, in contrast, when will infuse
When penetrating liquid and being injected into patient, make injection by filter component 59, thus, injection process is easy, and can prevent in advance different
Object is injected into patient.
Referring to Figures 1 and 2, in one embodiment of this invention, interface 30 may include being equipped with consolidating for injection needle 35
Determine component 31 and the lid 33 for covering injection needle.As shown in Fig. 2, in one embodiment of this invention, in fixing component
31 front part is equipped with injection needle 35, and injection is flowed by injection needle.
Also, in one embodiment of this invention, the rear part of fixing component 31 is combined with the combination pipe 11 of syringe 10,
So that being flowed into 10 inside of syringe by the injection that injection needle 35 is flowed into or is discharged or being discharged inside syringe 10.
Referring to Fig. 2, in one embodiment of this invention, syringe 10 can be in the cylindrical shape with hollow portion, so as to it
Storage inside injection.At this point, filter portion 50 can be set inside the front part of syringe 10.Also, of the invention one
In embodiment, in the inside of syringe 10, the rear in filter portion 50 is can be set in piston 20.
On the other hand, in one embodiment of this invention, be formed in the front part of syringe 10 in conjunction with pipe 11, so as to connect
30 insertion of mouth combines.At this point, in conjunction with the cylindrical shape of pipe 11 and with the diameter smaller diameter than syringe 10, and can be in needle
The front center part of cylinder is prominent forwards to be formed.
Also, in one embodiment of this invention, the central part of pipe 11 is being combined to could be formed with for injection inflow
Or the through-hole 13 of discharge.Slot 15 is flowed into combining the rear side end inner peripheral surface of pipe 11 that can extend to form to radial outside.
In one embodiment of this invention, the inflow slot 15 can be formed as multiple.At this point, multiple inflow slots 15 can be with
It is eight, however, the present invention is not limited thereto.Also, multiple slots 15 that flow into can be to the circumferencial direction cloth at spaced intervals for combining pipe 11
It sets.
On the other hand, in one embodiment of this invention, could be formed with first in conjunction with the rear side end of pipe 11 to fix
Slot 17, to form step, to be close to check-valves 51.At this point, in one embodiment of this invention, check-valves 51 can be with
One fixing groove 17 is close to, so that injection is flowed by the inflow slot 15 of the combination pipe 11 of syringe 10.
In one embodiment of this invention, the front side end for being connected to the syringe 10 in conjunction with pipe 11 could be formed with ring-type
Slot 10a, the endless groove 10a are recessed forwards for injection inflow.Also, endless groove 10a may be at by check-valves 51
Wing member 55 cover state.At this point, in one embodiment of this invention, flowing into slot 15 can be connected with endless groove 10a,
So that injection flows into wherein.At this point, the outside end for flowing into slot 15 is all connected to endless groove 10b, thus, it is flowed into institute
The injection for stating inflow slot 15 all focuses on endless groove 10b, is then flowed into inside syringe 10 by check-valves 51.
Referring to Fig. 2, the filter syringe 1 of an embodiment according to the present invention may include filter portion 50, the mistake
The inside of syringe 10 is arranged in filter portion 50, so that the first path flowed into for injection and be discharged for injection from syringe the
Two paths are not overlapped.At this point, first path can be formed in peripheral part, so as to not be overlapped with the second path.
The filter syringe 1 of an embodiment according to the present invention, which enables to work as, as a result, is injected into syringe for injection
When 10 inside, make injection without filter component 59, on the contrary, passing through injection when injection is injected into patient
Filter component 59, thus, injection process is easy, and the glass particle of ampoule can be prevented to be injected into patient.
At this point, first path may include through-hole 13, flow into slot 15, endless groove 10a and splitted groove 67, the second path can be with
Including the second tap 65a, the first tap 51a and through-hole 13.
More specifically, in one embodiment of this invention, filter portion 50 is integrated to 10 inside front part of syringe, and can
To include check-valves 51, filter component 59 and filter body 61.At this point, the filter of an embodiment according to the present invention is infused
Emitter 1 includes filter portion 50, thus can be to including that foreign matter in injection is filtered when injection discharge.
Referring to Fig. 2 and Fig. 3, in one embodiment of this invention, be opened and closed to 51 property of can choose of check-valves first path and
A path in second path.At this point, check-valves 51 can be by the material system of elastically deformable for the opening and closing of injection
At for example, being made of silica gel material.Therefore, check-valves 51 needs to have good elasticity and to hygienic harmless.
On the other hand, in one embodiment of this invention, check-valves 51 may include barrel member 53, wing member 55 and column structure
Part 57.On the other hand, in one embodiment of this invention, the front part of the cylindrical shape of barrel member 53, barrel member can be installed
And it is fixed on the first fixing groove 17 of syringe 10.
Also, in one embodiment of this invention, the shape in disk form of wing member 55 and can be in the rear part of barrel member 53
It is extended to form to radial outside.At this point, at least radial outside end of wing member 55 can be formed by elastic material.
That is, in one embodiment of this invention, when injection is flowed into 10 inside of syringe, wing member 55 by
In injection pressure and flexible deformation, so as to selectively be opened and closed the splitted groove 67 of filter body 61.
Referring to Fig. 2 and Fig. 3, in one embodiment of this invention, column component 57 can be in the front center part of barrel member 53
Divide and extends to form forwards.At this point, the sectional area of column component 57 can be the smaller forwards, allow the end phase of column component
It connects.Also, referring to Fig. 3, in one embodiment of this invention, the section of column component 57 can be with shape triangular in shape, but the present invention
It is without being limited thereto.
It on the other hand, in one embodiment of this invention, may include incision face 57a before column component 57, it is described to cut
The face 57a of opening is formed with cut-off lines 57b made of at least part incision.At this point, in one embodiment of this invention, cut-off lines
57b can be in linear type or cross.
In the filter syringe 1 of an embodiment according to the present invention, when injection is flowed into 10 inside of syringe,
Cut-off lines 57b can be closed, and only when injection to be discharged to outside syringe, cut-off lines can just open.
Referring to Fig. 3, in one embodiment of this invention, in the central part of barrel member 53, column component 57 and wing member 55
For injection discharge the second path on could be formed with the first tap 51a.
Referring to Fig. 2 and Fig. 4, in one embodiment of this invention, filter body 61 may include outer barrel member 63 and interior
Barrel member 65.At this point, in one embodiment of this invention, filter body 61 is in conjunction with the inner peripheral surface of syringe 10, so that filtering
Device component 59 is tightly attached to behind check-valves 51.
Referring to Fig. 4, in one embodiment of this invention, the cylindrical shape of outer barrel member 63, and fixed projection 63a is to circumference
Direction extends to form the outer peripheral surface in the outer barrel member 63.At this point, in one embodiment of this invention, outer barrel member 63 is consolidated
The fixing groove 10b for being integrated to the inner peripheral surface for being formed in syringe 10 can be inserted by determining protrusion 63a.
On the other hand, in one embodiment of this invention, it could be formed with inner tubular member 65 in the inside of outer barrel member 63.
At this point, referring to Fig. 2, in one embodiment of this invention, outer barrel member 63 and inner tubular member 65 can be connected with each other and integrally
It is formed.
In one embodiment of this invention, it could be formed with the splitted groove flowed into for injection in the outside of outer barrel member 63
67.At this point, wing member 55 can be arranged in a manner of covering splitted groove 67.Therefore, injection can be flowed into the splitted groove 67
Between the inner sidewall of the syringe 10.
Referring to Fig. 2, in one embodiment of this invention, splitted groove 67 can be formed as multiple.At this point, splitted groove 67 can be with
Be formed as four, however, the present invention is not limited thereto.Also, multiple splitted grooves 67 can be arranged apart to circumferencial direction.At this point, multiple
Splitted groove 67 can extend to form predetermined length to circumferencial direction respectively.
Referring to Fig. 4, the filter body 61 can be connected with each other by criss-cross extension, so that outer barrel member 63
It is integrally formed with inner tubular member 65.This shape makes the injection molding of synthetic resin become very easy.Also, by making
Form the channel that flows into for injection with the inner wall of splitted groove 67 and syringe 10, so as to be designed so that rigidity with described
The case where filter body 61 forms multiple holes is compared to higher.
On the other hand, in one embodiment of this invention, it could be formed with cylindrical shape in the inside of outer barrel member 63
Holding tank 65b, so that filter component 59 can be accommodated in front.Filter component 59 can be installed on the holding tank
It is tightly attached to behind check-valves 51 in the state of 65b.
Also, in one embodiment of this invention, it could be formed with the second tap in the central part of inner tubular member 65
65a, the second tap 65a are discharged to outside syringe 10 for injection.
Referring to Fig. 2, in one embodiment of this invention, filter component 59 is set in a manner of covering the second tap 65a
It sets, so that injection can also pass through filter component 59 when passing through the second tap 65a.That is, one embodiment of the invention
Filter portion 50 make injection only could be by filter component 59 when being discharged to 10 outside of syringe.
In one embodiment of this invention, the material as filter component 59, as long as having can pass through to being contained in
The density that the foreign matter of the injection of second tap 65a is filtered can use a variety of materials regardless of its type.
As a result, the filter body 61 is formed with multiple splitted grooves 67, the multiple splitted groove 67 referring to Fig. 6 to Fig. 9
A part of the outside outer rim of outer barrel member 63 is cut and forms and is connected to the endless groove 10a, when injection flows into, note
Penetrate liquid makes the multiple splitted groove 67 open by rearward pushing the wing member 55 of the check-valves 51, described to be flowed into
Inside syringe 10.
Referring to Fig. 2, in one embodiment of this invention, piston 20 may include piston main body 21 and washer 26.At this point, In
In one embodiment of the invention, the front part of piston main body 21 may include combine shaft component 22, the combination shaft component 22 to
Front protrusion is formed, to be combined with washer 26.
At this point, may include locking protrusion 23 in conjunction with shaft component 22 in one embodiment of this invention.At this point, combined axis
The end of component 22 can be formed completely through filter component 59, to prevent reusing for injection needle.
Referring to Fig. 2, in conjunction with 22 cylindrical form of shaft component and it is formed in the central part of piston main body 21, to be inserted into
It is integrated to washer 26.At this point, the diameter in conjunction with shaft component 22 the smaller forwards from rear, so that in conjunction with the front part of shaft component
Filter component 59 can be penetrated through.
On the other hand, in one embodiment of this invention, the front end in conjunction with shaft component 22 could be formed with locking protrusion
23.At this point, locking protrusion 23 is inserted into the combined hole 26a of washer 26.Also, it is in one embodiment of this invention, locking
The rear end face of protrusion 23 connects and is propped up with the front end face of washer in the state of can be in the combined hole 26a for being inserted into washer 26
Support.
At this point, in one embodiment of this invention, the diameter of locking protrusion 23 the rearward smaller from front referring to Fig. 5,
In order to easily penetrating through filter component 59.
Referring to Fig. 2 and Fig. 5, it may also include fastening member in one embodiment of this invention.Fastening member shape in disk form
And be formed in the rear end in conjunction with shaft component 22, i.e., between piston main body 21 and locking protrusion 23.At this point, of the invention one
In embodiment, the diameter of fastening member can be got over rearward smaller from front.
Referring to Fig. 2 and Fig. 6, in one embodiment of this invention, washer 26 is inserted into needle in a manner of it can move up and down
It is made inside cylinder 10 and by the good rubber of leakproofness or synthetic resin flexible.At this point, washer 26 is being close to be inserted into syringe
It is moved in the state of 10 inner peripheral surface.
On the other hand, in one embodiment of this invention, washer 26 can with cylindrical form, and the outer peripheral surface of washer can
To inward side to being formed with pleated portions (not shown).At this point, pleated portions can be in accordion like.At this point, according to this hair
The piston main body 21 of a bright embodiment is close to be inserted in the inside of syringe 10 by the pleated portions of washer 26, so as to prevent
Injection leakage.
Referring to Fig. 5, in one embodiment of this invention, the central part of washer 26 could be formed with combined hole 26a, for
The combination shaft component 22 of piston 20, which is inserted into, to be combined.At this point, being padded if being inserted into the combined hole 26a of washer 26 in conjunction with shaft component 22
Mutually it can tie and be supported with the front end face of locking protrusion 23 before circle.
In one embodiment of this invention, the length of combined hole 26a is identical to rear end and fastening in locking protrusion 23
The distance between front end of component enables and penetrates through combined hole in conjunction with shaft component 22 to arrange.
It could be formed with the second fixing groove in the rear end of combined hole 26a in one embodiment of this invention referring to Fig. 6
27, to fix fastening member.At this point, the central part in the second fixing groove 27 could be formed with combined hole 26a, due to second
The diameter of fixing groove is greater than the diameter of combined hole, therefore could be formed with to inward side in the end of combined hole 26a to outstanding
Second support convex 29.
Flow into injection the filter syringe 1 by an embodiment according to the present invention referring to Fig. 7 and Fig. 8
Or the operation of discharge is illustrated.
Referring to Fig. 6, when injection flows into, the filter syringe 1 of an embodiment according to the present invention is by by piston
20 Backwards, so that injection is flowed into inside syringe 10.At this point, injection can pass through the combination as first path
The through-hole 13 of pipe 11 is flowed into conjunction with inflow slot 15, the endless groove 10a of syringe 10 and the splitted groove 67 of filter body 61 of pipe
Inside syringe.
On the other hand, referring to Fig. 7, in injection discharge, the filter syringe 1 of an embodiment according to the present invention is logical
Crossing makes piston 20 before come in make injection to be discharged to outside syringe 10 forwards.At this point, injection can be by as the second tunnel
Second tap 65a of the filter body 61 of diameter, filter component 59, check-valves 51 the first tap 51a and through-hole 13
It is discharged to outside syringe.
Therefore, in the filter syringe 1 of an embodiment according to the present invention, when injection is injected into syringe
When internal, make injection without filter component 59, in contrast, when injection is injected into patient, passes through injection
Filter component 59 is crossed, thus, injection process is easy, and foreign matter can be prevented to be injected into patient.
On the other hand, referring to Fig. 8, after injection is injected into patient, the filtering of an embodiment according to the present invention
Device syringe 1 made by pushing piston 20 forwards in conjunction with shaft component 22 locking protrusion 23 penetrate through filter component 59 with into
Row is fixed, so as to prevent reusing for the filter syringe that injection is injected into patient.
As above one embodiment of the invention is illustrated, but purport of the invention is not limited to the implementation in the present invention
Example, those skilled in the art, can be by holding the additional of constitutive requirements, modification, deletion, increase etc. in identical main scope
It changes places and proposes other embodiments, and these belong to main scope of the invention.
Claims (8)
1. a kind of filter syringe characterized by comprising
Syringe is formed in conjunction with pipe, so as in conjunction with injection needle；
The inside of the syringe is arranged in filter portion, and including first path and the second path, the first path makes to inject
Liquid is flowed into inside the syringe by the injection needle, and second path is formed in the central part of the first path
And it is discharged to the outside injection from the syringe；And
Piston is formed with the combination shaft component that can be integrated to the filter portion in front of the piston, in the piston
At least part is inserted into the state of the syringe inside, and the piston is forwards or rear is mobile, so that injection flows into
Inside to the syringe or it is discharged to outside the syringe,
The filter portion includes:
Check-valves is connected with the injection needle, flows into injection by the first path, and by stopping up described
One path come make the injection pass through second path be discharged；
Filter component is arranged on second path, to be filtered to the injection being discharged by second path；
And
Filter body, the side of the filter body are formed with the holding tank accommodated for the filter component, so as to hold
The filter component for being contained in the holding tank is close to the check-valves,
Lateral radial outside is formed with multiple inflow slots in the rear of the combination pipe, in the posterior end portion of the combination pipe
It is formed with endless groove, the endless groove is all connected to the multiple inflow slot end and is recessed forwards for injection inflow,
The filter body is formed with multiple splitted grooves made of a part incision by outside outer rim, the multiple splitted groove
It is connected to the endless groove, when injection flows into, injection makes the multiple cut by rearward pushing the check-valves
Grooving open, to be flowed into inside the syringe,
The check-valves includes:
Barrel member, shape cylindrical in shape；
Column component is extended to form in the front central part of the barrel member, and the diameter of the column component more forwards more is reduced；
And
Wing member extends to form on the outside of the rear direction of the barrel member,
The filter body includes:
Outer barrel member, shape cylindrical in shape；And
Inner tubular member is connect with the outer barrel member, is arranged in inside the outer barrel member,
The central part of the inner tubular member is formed with the second tap, and the receiving is formed with before the inner tubular member
Slot,
The outside outer rim of the outer barrel member is formed with the multiple splitted groove, and when the injection flows into, injection passes through
The wing member for the endless groove for stopping up the syringe is rearward pushed to keep the multiple splitted groove open, then by described
Space between splitted groove and the syringe inner wall is flowed into inside the syringe.
2. filter syringe according to claim 1, which is characterized in that
The first tap is formed in the central part of the barrel member and the column component.
3. filter syringe according to claim 2, which is characterized in that
The side of the column component includes incision face, and the incision face is formed with cut-off lines made of at least part incision,
When the injection flows into or is discharged, the incision face is selectively opened and closed the first row and portals.
4. filter syringe according to claim 1, which is characterized in that
The outer peripheral surface of the outer barrel member is formed at least one locking groove, and the inner peripheral surface of the syringe is formed with fixed projection,
The fixed projection can be integrated to the locking groove.
5. filter syringe according to claim 1, which is characterized in that
The piston includes washer, and the washer is integrated to the front of the piston, and the outer peripheral surface of the washer and the needle
Cylinder is internal to be close to,
The combined axis component is arranged in the inside of the washer, and so that the front part of the combination shaft component to the washer
Front mode outstanding installed.
6. filter syringe according to claim 5, which is characterized in that
The combination shaft component includes:
Locking protrusion is formed in the front of the combination shaft component, and the front of Xiang Suoshu washer is prominent, to be integrated to the filtering
The side of device component；And
Fastening member is formed in the rear of locking protrusion in the combination shaft component, is formed to radial outside is prominent.
7. filter syringe according to claim 6, which is characterized in that
The fastening member shape in disk form, when the combination shaft component moves forwards, the fastening member is in the pad
The inside of circle is moved forwards, to connect with the rear aspect of the washer.
8. filter syringe according to claim 7, which is characterized in that
The sectional area of the locking protrusion more forwards more is reduced from rear, after injection is discharged by the second path, institute
It states locking protrusion and penetrates through the filter component to be fixed, to prevent from reusing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180046601A KR101891787B1 (en) | 2018-04-23 | 2018-04-23 | Filter syringe |
| KR10-2018-0046601 | 2018-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110384842A true CN110384842A (en) | 2019-10-29 |
| CN110384842B CN110384842B (en) | 2021-10-22 |
Family
ID=63455084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811020751.4A Active CN110384842B (en) | 2018-04-23 | 2018-09-03 | Filter injector |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101891787B1 (en) |
| CN (1) | CN110384842B (en) |
| WO (1) | WO2019208891A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101891787B1 (en) * | 2018-04-23 | 2018-08-27 | (주)상아프론테크 | Filter syringe |
| KR102059340B1 (en) | 2019-02-22 | 2019-12-26 | 주식회사 인성메디칼 | Filter injector |
| KR102042377B1 (en) * | 2019-03-22 | 2019-11-07 | 김호임 | Syringe with filter |
| KR102554972B1 (en) * | 2021-04-01 | 2023-07-11 | 정재은 | Filter mechanism for syringe |
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- 2018-04-23 KR KR1020180046601A patent/KR101891787B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101891787B1 (en) | 2018-08-27 |
| CN110384842B (en) | 2021-10-22 |
| WO2019208891A1 (en) | 2019-10-31 |
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