CN218607600U - Filtering type injector - Google Patents
Filtering type injector Download PDFInfo
- Publication number
- CN218607600U CN218607600U CN202221596935.7U CN202221596935U CN218607600U CN 218607600 U CN218607600 U CN 218607600U CN 202221596935 U CN202221596935 U CN 202221596935U CN 218607600 U CN218607600 U CN 218607600U
- Authority
- CN
- China
- Prior art keywords
- passageway
- liquid medicine
- barrel
- syringe
- piston
- 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.)
- Active
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a filtration formula syringe, including the barrel and with barrel assorted piston, the one end of piston connection push rod, the press hand is connected to the other end of push rod, the liquid medicine passageway is connected to the one end of barrel, corresponds the liquid medicine passageway is in the barrel internal fixation sets up first passageway and fixed plate, first access connection second passageway, first passageway be higher than it with the junction department of second passageway sets up first check valve, set up the second check valve in the second passageway, the filter pulp is connected to the second passageway, the filter pulp passes through the fixed plate is fixed and is hugged closely the port of second passageway. The liquid medicine passes through the liquid medicine passageway and flows into to the barrel from first passageway, and when injecting the liquid medicine, the liquid medicine can flow from the liquid medicine passageway through the second passageway through first passageway again after filtering the cotton, and the liquid medicine does not pass through the filter pulp when extracting the liquid medicine, filters the liquid medicine only when injecting the liquid medicine to this can guarantee the filter effect.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to filtration formula syringe.
Background
At present, a container for containing liquid medicine is not an ampoule bottle made of glass, a penicillin bottle made of a rubber plug or a plastic bottle made of plastic. However, in either case, generation of particles during opening of the bottle or drawing of the liquid medicine cannot be avoided. The fine particles may be fine glass or rubber particles, or may be microorganisms such as bacteria.
However, the medical staff directly performs the injection after drawing the medical fluid. Therefore, it is possible to inject fine particles in the liquid medicine directly into the patient, and the fine particles may cause harm to the human body. Also prior art sets up filter mechanism directly in the syringe, but when extracting the liquid medicine, the liquid medicine can filter through filter mechanism earlier, has that partial particle can be adsorbed to this one end that filter mechanism faced the play liquid promptly, when injecting the liquid medicine afterwards, when the liquid medicine passes through filter mechanism once more, because be reverse through once more, probably take out the particle of adsorbing before this one end that filter mechanism faced the play liquid, therefore the filter effect of this kind of syringe that directly sets up filter mechanism still remains to be strengthened.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a filter-type syringe.
The utility model provides a filtration formula syringe, its technical scheme who adopts as follows:
the utility model provides a filtration formula syringe, including the barrel and with barrel assorted piston, the one end of push rod is connected to the piston, the other end of push rod is connected and is pressed the hand, the liquid medicine passageway is connected to the one end of barrel, corresponds the liquid medicine passageway is in the barrel internal fixation sets up first passageway and fixed plate, the second passageway is connected to first passageway, first passageway be higher than its with the junction department of second passageway sets up first check valve, set up the second check valve in the second passageway, the filter pulp is connected to the second passageway, the filter pulp passes through the fixed plate is fixed and hug closely the port of second passageway.
As a preferable technical scheme, one end of the liquid medicine channel is connected with the needle tube.
As a preferable technical scheme, one end of the liquid medicine channel is connected with the needle tube through the needle stand.
Preferably, the cylinder is cylindrical.
Preferably, the outer side of the cylinder is provided with scales.
As a preferred technical scheme, the press hand is provided with anti-skid lines.
As a preferred technical scheme, a support seat is arranged in the cylinder, the shape of the support seat is matched with that of the piston, and a circulation hole is formed in the support seat.
As a preferable technical solution, the first channel is in contact with or connected to the abutting seat, and the first channel is communicated with the flow hole.
As the preferred technical scheme, the filter cotton is in contact with or connected with the abutting seat.
The utility model has the advantages that: according to the utility model discloses a filtration formula syringe, when extracting the liquid medicine, the liquid medicine passes through the liquid medicine passageway and flows into to the barrel from the first passageway in, and when injecting the liquid medicine, the liquid medicine can flow from the liquid medicine passageway through the first passageway again through the second passageway after filtering the cotton filtration, and the liquid medicine is not through filtering the cotton when extracting the liquid medicine, only filters the liquid medicine when injecting the liquid medicine to this can guarantee the filter effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 shows a schematic structural diagram of a filtering syringe according to an embodiment of the present invention.
Figure 2 shows a perspective view of a filtering syringe according to an embodiment of the present invention.
Figure 3 shows a cross-sectional view of a filtering syringe according to an embodiment of the present invention.
In the figure, 1 is a cylinder, 2 is a piston, 3 is a push rod, 4 is a press hand, 5 is a liquid medicine channel, 6 is a first channel, 7 is a fixing plate, 8 is a second channel, 9 is a first one-way valve, 10 is a second one-way valve, 11 is filter cotton, 12 is a needle tube, 13 is a needle seat, 14 is anti-skid lines, 15 is a support seat, 16 is a circulation hole, and 17 is a scale.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
The embodiment of the utility model provides a filtration formula syringe, as shown in fig. 1, this filtration formula syringe include barrel 1 and with 1 assorted piston 2 of barrel, piston 2 link rod 3's one end, push rod 3's other end is connected and is pressed hand 4, liquid medicine passageway 5 is connected to barrel 1's one end, corresponds liquid medicine passageway 5 is in the barrel internal fixation sets up first passageway 6 and fixed plate 7, second passageway 8 is connected to first passageway 6, first passageway 6 be higher than it with second passageway 8's junction department sets up first check valve 9, set up second check valve 10 in the second passageway 8, second passageway 8 is connected and is filtered cotton 11, it passes through to filter cotton 11 fixed plate 7 is fixed and is hugged closely second passageway 8's port.
The first one-way valve 9 is used for controlling the liquid medicine to only flow into the cylinder 1, and the second one-way valve 10 is used for controlling the liquid medicine to only flow out of the cylinder 1. The arrows in fig. 1 show the flow direction of the liquid medicine. In specific implementation, the push rod 3 is pushed and pulled by the button 4 to drive the piston 2 to move so as to draw or inject the liquid medicine. When the liquid medicine is extracted, the second channel 8 is not used as a liquid medicine inlet channel due to the arrangement of the second one-way valve 10 on the second channel 8, and the liquid medicine can only enter the cylinder 1 through the first channel 6 at the moment. When the liquid medicine is injected, the liquid medicine cannot flow out from the original inflow direction due to the arrangement of the first one-way valve 9 on the first channel 6, and the liquid medicine enters the middle part of the first channel 6 through the second channel 8 after being filtered by the filter cotton 11 and flows out through the liquid medicine channel 5. Therefore, in the whole process, the liquid medicine does not need to flow through the filter cotton 11 in two directions, the filtering effect is good, and the damage of particles in the process of opening the bottle or extracting the liquid medicine can be effectively avoided.
The filter syringe of this embodiment may be a needleless syringe, such as the configuration shown in fig. 1, or may be a syringe with a needle. As shown in FIG. 2, one end of the medical fluid passage 5 is connected to a needle cannula 12. One end of the medical fluid passage 5 is connected to a needle tube 12 through a hub 13.
In some embodiments, the cartridge 1 may be cylindrical, as shown in fig. 2.
In some embodiments, as shown in fig. 2, the outside of the cylinder 1 is provided with a scale 17. A 50mL gauge syringe is shown in fig. 2, although other gauges of syringes may be implemented. For example, 10mL,30mL,80mL,100mL, etc. The present embodiment is not limited to a specific specification and capacity of the syringe.
In some embodiments, as shown in fig. 3, the handle 4 is provided with an anti-slip texture 14.
In some embodiments, as shown in fig. 3, a supporting seat 15 is arranged in the cylinder 1, a flow hole 16 is arranged on the supporting seat, the shape of the supporting seat 15 matches the shape of the piston 2, for example, if one end of the piston 2 is convex, the supporting seat 15 may be provided with a groove matching with the corresponding protrusion. The setting of the abutting seat 15 can avoid the piston 2 from contacting the first channel 6 or the filter cotton 11 when moving in the cylinder 1. When the dolly 15 is provided, the first passage 6 may contact or connect with the dolly 15 and make the first passage 6 communicate with the corresponding flow hole 16. The filter cotton 11 can also be in contact with or connected to the abutment 15. Therefore, one end of the abutting seat 15 can bear the piston 2, and the other end of the abutting seat can be matched with the cylinder body 1 and the fixing plate 7 to limit and fix the first channel 6 and the filter cotton 11, so that the whole structure is more compact and stable.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (9)
1. The utility model provides a filtration formula syringe, including the barrel and with barrel assorted piston, the one end of push rod is connected to the piston, the other end of push rod is connected and is pressed the hand, the liquid medicine passageway is connected to the one end of barrel, its characterized in that corresponds the liquid medicine passageway is in the barrel internal fixation sets up first passageway and fixed plate, the second passageway is connected to first passageway, first passageway be higher than its with the junction department of second passageway sets up first check valve, set up the second check valve in the second passageway, the filter pulp is connected to the second passageway, the filter pulp passes through the fixed plate is fixed and hug closely the port of second passageway.
2. The filtering syringe of claim 1, wherein one end of the liquid medicine passage is connected to the needle tube.
3. The filtering syringe of claim 2, wherein one end of the liquid medicine passage is connected to the needle tube through the needle holder.
4. The filtering syringe of claim 1, wherein the barrel is cylindrical.
5. The filtering syringe of claim 1, wherein the outside of the barrel is provided with a scale.
6. The filtering syringe of claim 1, wherein the push handle is provided with an anti-slip texture.
7. The filtering syringe of claim 1, wherein a retainer is arranged in the barrel, the retainer is matched in shape with the piston, and the retainer is provided with flow holes.
8. The filtering syringe of claim 7, wherein the first channel is in contact with or connected to the dolly such that the first channel is in communication with the flow holes.
9. The filtering syringe of claim 7, wherein the filter cotton is in contact with or connected to the dolly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221596935.7U CN218607600U (en) | 2022-06-23 | 2022-06-23 | Filtering type injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221596935.7U CN218607600U (en) | 2022-06-23 | 2022-06-23 | Filtering type injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218607600U true CN218607600U (en) | 2023-03-14 |
Family
ID=85457424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221596935.7U Active CN218607600U (en) | 2022-06-23 | 2022-06-23 | Filtering type injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218607600U (en) |
-
2022
- 2022-06-23 CN CN202221596935.7U patent/CN218607600U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110812605A (en) | Precise filtering injector | |
| CN218607600U (en) | Filtering type injector | |
| CN209075729U (en) | A kind of core double filtration syringe | |
| CN201346311Y (en) | Medical medicine adding needle | |
| CN217448622U (en) | Drug delivery device with filtering structure | |
| CN219022722U (en) | Syringe needle | |
| CN212382958U (en) | Vein medicine dispenser | |
| CN215653039U (en) | Novel normal saline tube sealing liquid device | |
| CN210447778U (en) | Anti-pollution syringe | |
| CN216934303U (en) | Stable protection end cap of syringe | |
| CN217366770U (en) | Built-in filter type syringe | |
| CN217772902U (en) | Filter body, filter type syringe injection structure and drip injection structure | |
| CN211096608U (en) | Dropping funnel and siphon intravenous injection device | |
| CN210873474U (en) | Syringe needle with filtering capability | |
| CN216725424U (en) | Insulin syringe | |
| CN219169136U (en) | Direct-injection type medical cleaning device for inner hole of capillary needle tube | |
| CN216536389U (en) | Anti-backflow infusion apparatus | |
| CN213252066U (en) | Anti-reflux device for injection | |
| CN215840934U (en) | Photophobic medical syringe | |
| CN213964362U (en) | Impurity filtering type syringe | |
| CN212699927U (en) | Precise filtering infusion apparatus with medicine dispensing connector | |
| CN213284967U (en) | Safety syringe containing filtering membrane | |
| CN215840943U (en) | Double-tube syringe | |
| CN219595457U (en) | Remaining needle convenient for blood drawing | |
| CN215022387U (en) | Special medicine dispenser for static distribution center |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |