CN221206144U - Self-sealing medicine taking device for needleless injector - Google Patents
Self-sealing medicine taking device for needleless injector Download PDFInfo
- Publication number
- CN221206144U CN221206144U CN202322292823.3U CN202322292823U CN221206144U CN 221206144 U CN221206144 U CN 221206144U CN 202322292823 U CN202322292823 U CN 202322292823U CN 221206144 U CN221206144 U CN 221206144U
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- plug
- needle tube
- rubber plug
- needle
- medicine
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- 239000003814 drug Substances 0.000 title claims abstract description 114
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims abstract description 98
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 239000003708 ampul Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 238000012377 drug delivery Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 208000034526 bruise Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a self-sealing medicine taking device for a needleless injector, which comprises a shell and a needle tube, wherein the shell comprises a needle tube protection part and a rubber plug fixing part, the needle tube fixing part is arranged between the needle tube protection part and the rubber plug fixing part, the needle tube is inserted on the needle tube fixing part, the rubber plug is arranged in the rubber plug fixing part, the rubber plug is an elastomer, the tip of the needle tube is inserted in the needle tube protection part, the flat end of the needle tube is inserted in the rubber plug, the shell, the needle tube and the rubber plug are in coaxial penetrating type assembly connection, a medicine bottle fixing part is arranged in the needle tube protection part, a medicine tube fixing part is arranged at the end, far away from the needle tube protection part, of the rubber plug, a needle tube jack is arranged at the center, close to the needle tube fixing part, of the rubber plug, a groove is arranged at the center, far from the needle tube fixing part, of the rubber plug notch is arranged between the groove and the needle tube jack. The beneficial effects of the utility model are as follows: the problem of liquid leakage after the medicine tube is taken down is effectively solved; the cap does not need to be opened or closed manually, so that the operation steps are few; the assembly process is simple and the manufacturing cost is low.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a self-sealing medicine taking device for a needleless injector.
Background
With the development of the medical industry, various aspects of medical instruments are required to be improved. The common syringe is provided with a needle, the needle needs to be punctured through the skin surface during injection, pain is brought to people in the moment, bleeding phenomenon can occur after the needle is pulled out, the syringe can be stopped after being pressed for a few minutes by using medical alcohol cotton, and the phenomenon of bruise and purple can occur to some people and even be infected. Accordingly, needleless syringes have been developed, but needleless syringes cannot take out a drug solution from a drug vial, and therefore require the placement of a drug extractor. However, the existing medicine taking device has a lot of parts, a lot of assembling processes and easy liquid leakage.
The patent document of a medicine taking connector of a needleless injector with a patent publication number of CN215133437U discloses a medicine taking connector structure, which has the following working principle: this product divide into upper and lower two parts, need two equipment back to use, the first half is connected the interface with the ampoule, the cap, the needle of getting it filled, the sealing washer, the preforming, the latter half is including the head of fixed medicine bottle, the safety cover of needle of getting it filled and the buckle of connecting the first half, before using, will connect the buckle of first half to impress the card slot of inserting with the connector lower part, accomplish the equipment promptly with the preforming flattening, the sealing washer guarantees not have the air admission when extracting liquid, effectively prevent the drip, in will getting it filled the needle of getting it filled in the medicine bottle, the effect of protection syringe needle and fixed medicine bottle is played to the safety cover of outside medicine bottle and the inside fixed medicine bottle, reopen the cap, will ampoule clockwise rotation to get it connects the interface with the ampoule on, just can extract the liquid medicine, the unique draw-in groove design of medicine connector guarantees that the ampoule can not drop, can close fit with the connector, the sealing washer guarantees not have the air admission when extracting liquid, effectively prevent the drip. However, the medicine taking connector has various structures, the medicine taking connector can be used only after being assembled by clamping the upper part and the lower part, the operation is complex, the medicine taking connector needs to be manually opened, and the medicine taking connector needs to be manually covered after being used, if the medicine taking connector is not timely covered, as the medicine liquid in the medicine bottle can flow out under the action of atmospheric pressure, the risk of liquid leakage exists.
Disclosure of utility model
The utility model aims to provide a self-sealing medicine taking device for a needleless injector, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a needleless injector is with self-sealing medicine taking device, includes shell and needle tubing, the shell includes needle tubing protection part and plug fixed part, be equipped with needle tubing fixed part between needle tubing protection part and the plug fixed part, the needle tubing is inserted and is located on the needle tubing fixed part, be equipped with the plug in the plug fixed part, the plug is the elastomer, the pointed end of needle tubing is inserted and is located in the needle tubing protection part, the flat end of needle tubing is inserted and is located in the plug, shell, needle tubing and plug are coaxial through type assembled connection, the inside medicine bottle fixed part that is equipped with of needle tubing protection part, the needle tubing protection part end of keeping away from of plug fixed part end is equipped with the medicine tube fixed part, the center that is close to the needle tubing fixed part end of plug is equipped with the needle tubing jack, the center that keeps away from the needle tubing fixed part end of plug is equipped with the recess, be equipped with the plug incision between recess and the needle tubing jack.
Further preferably, the medicine bottle fixing part and the medicine tube fixing part are formed by combining a plurality of arc-shaped bulges which are uniformly arranged in a circular shape along the central axis direction of the shell, and have certain fault tolerance, so that the medicine bottle is convenient to be clamped with the medicine bottle fixing part and the medicine tube fixing part; the axle wires of the medicine bottle fixing part and the medicine tube fixing part are coincident with the axle wires of the shell, so that the connection of the medicine bottle and the medicine tube is facilitated.
Further preferably, a through needle tube fixing hole is formed in the center of the needle tube fixing part and used for installing a needle tube; the end, close to the needle tube protecting part, of the needle tube fixing hole is provided with a conical surface, so that the needle tube is convenient to install.
Further preferably, the groove is of a horn-shaped structure, the diameter of the groove close to the insertion hole end of the needle tube is smaller than that of the groove far away from the insertion hole of the needle tube, and the rubber plug is prevented from affecting the opening of the rubber plug notch when deformed, so that the needle tube is blocked.
Further preferably, two ends of the rubber plug notch are respectively connected with the needle tube jack and the groove, so that the needle tube can be communicated with the groove when the rubber plug is extruded; the rubber plug notch is a seamless notch, so that the rubber plug notch is ensured to be closed in a natural state, and the needle tube can be plugged.
Further preferably, the side surface of the rubber plug is provided with rubber plug bulges close to the end of the needle tube fixing part, and the two rubber plug bulges are symmetrically arranged on the side surface of the rubber plug and used for positioning and fixing the rubber plug, so that the positioning and fixing of the two rubber plug bulges are firmer and the manufacturing is simple; the side of keeping away from needle tubing fixed part end of plug is equipped with convex spacing platform for the plug is spacing at the plug fixed part inner wall, guarantees the fixed firm of plug, and then guarantees that the installation of needle tubing is firm, can not appear crooked phenomenon.
Further preferably, two rubber plug fixing holes matched with the rubber plug bulges are formed in the end, close to the needle tube fixing part, of the rubber plug fixing part, so that the rubber plug is installed, positioned and fixed in the rubber plug fixing part.
Further preferably, the inboard of plug fixed part is equipped with two guide ways that the symmetry set up, two the guide way all sets up along the direction of the axis of plug fixed part, two the guide way be close to needle tubing fixed part end and be connected with two plug fixed orifices respectively, realize the bellied abdication and the direction of plug when installing the plug through the guide way, guarantee that the plug equipment is easy.
The beneficial effects are that: according to the self-sealing medicine taking device for the needleless injector, the elastic capability of the rubber plug is utilized, the flat end of the needle tube can leak out of the rubber plug during extrusion, manual operation is not needed, so that a medicine bottle is communicated with a medicine tube through the needle tube, medicine taking is convenient, after the medicine tube is taken down, the rubber plug has no extrusion force, the flat end of the medicine tube can be automatically recovered, the medicine liquid is prevented from flowing out through the needle tube, and the problem of liquid leakage after the medicine tube is taken down is effectively solved; the rubber plug is automatically recovered, the needle tube is not required to be blocked manually, the operation steps that the existing structure is required to be opened or closed manually to block the medicine bottle are effectively solved, and the operation steps are few, simple and easy; the self-sealing medicine taking device has the advantages of simple structure, fewer parts, fewer assembly steps, simple assembly process and low manufacturing cost.
Drawings
FIG. 1 is a schematic view of an exploded view of a self-sealing drug delivery device for a needleless injector in accordance with the present utility model;
FIG. 2 is a schematic axial view of a self-sealing applicator for a needleless injector in accordance with the present utility model;
FIG. 3 is a schematic cross-sectional view of a self-sealing drug delivery device for a needleless injector in accordance with the present utility model;
FIG. 4 is a schematic diagram showing the front view of a self-sealing drug delivery device for a needleless injector according to the present utility model;
FIG. 5 is a schematic cross-sectional view of the disclosed housing;
FIG. 6 is a schematic view of a perspective axial side structure of the disclosed housing;
FIG. 7 is a schematic view of another perspective axial side structure of the disclosed housing;
FIG. 8 is a schematic cross-sectional view of the disclosed rubber stopper;
FIG. 9 is a schematic diagram of the axial structure of the rubber plug disclosed in the present utility model;
Fig. 10 is a schematic view showing the use state of the self-sealing medicine taking device for the needleless injector.
Reference numerals: 1-shell, 11-needle tube protecting part, 12-rubber plug fixing part, 121-rubber plug fixing hole, 122-guide groove, 13-needle tube fixing part, 131-needle tube fixing hole, 14-medicine bottle fixing part, 15-medicine tube fixing part, 2-needle tube, 3-rubber plug, 31-needle tube jack, 32-groove, 33-rubber plug notch, 34-rubber plug protrusion, 35-limit table, 4-medicine bottle and 5-medicine tube.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1-10, a self-sealing medicine taking device for a needleless injector is used for connecting a medicine tube 5 and taking medicine into a medicine bottle 4. The self-sealing medicine taking device comprises a shell 1 and a needle tube 2, wherein the shell 1 is of a stepped cylindrical structure, and is convenient to process and use; the shell 1 comprises a needle tube protection part 11 and a rubber plug fixing part 12, wherein the tip of the needle tube 2 is inserted into the needle tube protection part 11, the flat end of the needle tube 2 is inserted into the rubber plug 3, the needle tube protection part 11 is used for protecting the needle tube 2, the needle tube 2 is used for sucking liquid medicine, and the tip of the needle tube 2 can penetrate into the medicine bottle 4, so that the liquid medicine can be sucked conveniently; the rubber plug fixing part 12 is used for installing the rubber plug 3, and the rubber plug 3 is used for plugging the needle tube 2 to prevent liquid leakage. A needle tube fixing part 13 is arranged between the needle tube protecting part 11 and the rubber plug fixing part 12, the needle tube 2 is installed through the needle tube fixing part 13, a penetrating needle tube fixing hole 131 is arranged in the center of the needle tube fixing part 13, and the needle tube 2 is inserted into the needle tube fixing hole 131, so that the installation and the fixation of the needle tube 2 are realized. The rubber plug 3 is an elastomer, so that the rubber plug 3 can be extruded and deformed in the use process, and the flat end of the needle tube 2 can be communicated with the medicine tube 5 or blocked by the rubber plug 3. The shell 1, the needle tube 2 and the rubber plug 3 are assembled and connected in a coaxial penetrating way, so that the self-sealing medicine taking device is conveniently connected with the medicine bottle 4 and the medicine tube 5; a medicine bottle fixing part 14 is arranged in the needle tube protecting part 11 and is used for being inserted and connected with the medicine bottle 4; the end of the rubber plug fixing part 12 far away from the needle tube protecting part 11 is provided with a medicine tube fixing part 15 which is used for being inserted and connected with the medicine tube 5, so that the medicine tube 5 can conveniently and smoothly extract medicine liquid from the medicine bottle 4. The center that is close to needle tubing fixed part 13 end of plug 3 is equipped with needle tubing jack 31 for the installation of the flat end of needle tubing 2, the center that keeps away from needle tubing fixed part 13 end of plug 3 is equipped with recess 32, recess 32 is the tubaeform structure, its diameter that is close to needle tubing jack 31 end is less than the diameter that keeps away from needle tubing jack 31, be equipped with plug incision 33 between recess 32 and the needle tubing jack 31, needle tubing jack 31 and recess 32 are connected respectively at the both ends of plug incision 33, design through recess 32 and plug incision 33 are connected, when guaranteeing that plug 3 receives the extrusion in the use, a deformation space of the cock body that provides plug incision 33 department, guarantee that recess 32 can not block plug incision 33, make needle tubing 2 that needle tubing jack 31 interpolation was established can spill in recess 32 through plug incision 33, and then realize the intercommunication of medicine pipe 5 and medicine bottle 4, make medicine pipe 5 can draw the liquid medicine from medicine bottle 4 through needle tubing 2.
In the application, the elasticity of the rubber plug 3 is utilized, and the rubber plug notch 33 is a seamless notch, so that the rubber plug notch 33 is always closed in a natural state, and the flat end of the needle tube 2 is plugged or leaked through the rubber plug notch, thereby realizing the purposes of sucking liquid medicine or preventing liquid leakage. The principle of the self-sealing medicine taking device is as follows: the flat end of the needle tube 2 is always arranged in the rubber plug 3 and is not communicated with the atmosphere; when in use: firstly, the medicine bottle 4 is clamped with a medicine bottle fixing part 14 of the shell 1, the tip of the needle tube 2 is penetrated into the medicine bottle 4, then the medicine tube 5 is clamped with a medicine tube fixing part 15 of the shell 1, at the moment, the rubber plug 3 is extruded in the process of clamping the medicine tube 5, so that the flat end of the needle tube 2 is enabled to 'leak' through a rubber plug notch 33, the needle tube 2 is communicated with the groove 32, the needle tube 2 is in butt joint communication with a medicine taking hole of the medicine tube 5, and the medicine tube 5 starts to absorb medicine liquid into the medicine bottle 4 through the needle tube 2; however, when the medicine tube 5 is pulled out, the rubber plug 3 loses extrusion force and returns to the original state under the action of self elastic force, at the moment, the flat end of the needle tube 2 is placed in the rubber plug 3, the rubber plug notch 33 is naturally closed, and the communication between the needle tube 2 and the atmosphere is blocked, so that the liquid leakage phenomenon is prevented.
In the application, the medicine bottle fixing part 14 and the medicine tube fixing part 15 are formed by combining four arc-shaped bulges which are uniformly and circularly arranged along the central axis direction of the shell 1, so that the medicine bottle fixing part 14 and the medicine bottle 4 and the medicine tube fixing part 15 and the medicine tube 5 are conveniently inserted and connected, and the fixing stability of the connected medicine bottle 4 and medicine tube 5 is ensured; the central axes of the medicine bottle fixing part 14 and the medicine tube fixing part 15 are coincident with the central axis of the shell 1, so that the medicine bottle fixing part 14 and the medicine tube fixing part 15 are convenient to process and are connected with the medicine bottle 4 and the medicine tube 5.
In the application, the end of the needle tube fixing hole 131, which is close to the needle tube protecting part 11, is provided with a conical surface, so that the difficulty of inserting the needle tube 2 into the needle tube fixing hole 131 during installation is reduced, and the guide effect is achieved.
In the application, the side surface of the rubber plug 3, which is close to the end of the needle tube fixing part 13, is provided with the rubber plug bulge 34, the two rubber plug bulges 34 are symmetrically arranged on the side surface of the rubber plug 3, the rubber plug bulge 34 is used for fixing the rubber plug 3 in the rubber plug fixing part 12, the end of the rubber plug fixing part 12, which is close to the needle tube fixing part 13, is provided with the two rubber plug fixing holes 121, and the two rubber plug bulge 34 is respectively connected with the two rubber plug fixing holes 121 in a clamping way, so that the fixing and the limiting of the rubber plug 3 are realized; the side surface of the rubber plug 3, which is far away from the end of the needle tube fixing part 13, is provided with a protruding limiting table 35 for limiting the rubber plug 3 in the rubber plug fixing part 12, so that the rubber plug 3 is ensured to be stably installed in the rubber plug fixing part 12, and the needle tube 2 is ensured to be stably installed; meanwhile, the diameter size of the middle part of the rubber stopper 3, that is, the part between the rubber stopper protrusion 34 and the limiting table 35 is smaller than the diameter size of the limiting table 35, so that a gap exists between the middle part of the rubber stopper 3 and the inner wall of the rubber stopper fixing hole 121 for providing a deformation space of the rubber stopper 3.
In the application, two symmetrically arranged guide grooves 122 are arranged on the inner side of the rubber plug fixing part 12, the two guide grooves 122 are arranged along the direction of the central axis of the rubber plug fixing part 12, the ends of the two guide grooves 122, which are close to the needle tube fixing part 13, are respectively connected with two rubber plug fixing holes 121, and the arrangement of the guide grooves 122 is convenient for the rubber plug 3 to be arranged in the rubber plug fixing holes 121 on the rubber plug fixing part 12 when the rubber plug 3 is installed, and plays a role in yielding and guiding the installation of the rubber plug bulge 34.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the summary of the present utility model within the scope of the present utility model.
Claims (8)
1. The utility model provides a needleless injector is with self-sealing medicine taking device, includes shell (1) and needle tubing (2), its characterized in that: the utility model provides a syringe protection part, including needle tubing protection part (11) and plug fixed part (12), be equipped with needle tubing fixed part (13) between needle tubing protection part (11) and plug fixed part (12), needle tubing (2) are inserted and are located on needle tubing fixed part (13), be equipped with plug (3) in plug fixed part (12), plug (3) are the elastomer, the pointed end of needle tubing (2) is inserted and is located in needle tubing protection part (11), the flat end of needle tubing (2) is inserted and is located in plug (3), shell (1), needle tubing (2) and plug (3) are coaxial heart and run through assembled connection, needle tubing protection part (11) inside is equipped with medicine bottle fixed part (14), the center that is close to needle tubing protection part (11) end of plug fixed part (12) is equipped with medicine pipe fixed part (15), the center that is close to fixed part (13) end of plug (3) is equipped with jack (31), the center that is kept away from needle tubing fixed part (13) end of plug (3) is equipped with recess (32), be equipped with between recess (33) and jack (33).
2. A self-sealing applicator for a needleless injector as in claim 1, wherein: the medicine bottle fixing part (14) and the medicine tube fixing part (15) are formed by combining a plurality of arc-shaped bulges which are uniformly arranged in a circular shape along the central axis direction of the shell (1), and the central axes of the medicine bottle fixing part (14) and the medicine tube fixing part (15) are overlapped with the central axis of the shell (1).
3. A self-sealing applicator for a needleless injector as in claim 1, wherein: the center of the needle tube fixing part (13) is provided with a penetrating needle tube fixing hole (131), and the end, close to the needle tube protecting part (11), of the needle tube fixing hole (131) is provided with a conical surface.
4. A self-sealing applicator for a needleless injector as in claim 1, wherein: the groove (32) is of a horn-shaped structure, and the diameter of the end, close to the needle tube insertion hole (31), of the groove is smaller than the diameter of the end, far from the needle tube insertion hole (31).
5. A self-sealing applicator for a needleless injector as in claim 4, wherein: two ends of the rubber plug notch (33) are respectively connected with the needle tube insertion hole (31) and the groove (32), and the rubber plug notch (33) is a seamless notch.
6. A self-sealing applicator for a needleless injector as in claim 1, wherein: the side of plug (3) is close to needle tubing fixed part (13) end and is equipped with plug arch (34), two plug arch (34) symmetry set up in the side of plug (3), the side of keeping away from needle tubing fixed part (13) end of plug (3) is equipped with convex spacing platform (35).
7. A self-sealing applicator for a needleless injector as in claim 6, wherein: two rubber plug fixing holes (121) matched with rubber plug bulges (34) are formed in the end, close to the needle tube fixing part (13), of the rubber plug fixing part (12).
8. A self-sealing applicator for a needleless injector as in claim 7, wherein: the inside of plug fixed part (12) is equipped with two guide slots (122) that the symmetry set up, two guide slots (122) all set up along the direction of the axis of plug fixed part (12), two be close to needle tubing fixed part (13) end of guide slots (122) is connected with two plug fixed orifices (121) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322292823.3U CN221206144U (en) | 2023-08-25 | 2023-08-25 | Self-sealing medicine taking device for needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322292823.3U CN221206144U (en) | 2023-08-25 | 2023-08-25 | Self-sealing medicine taking device for needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221206144U true CN221206144U (en) | 2024-06-25 |
Family
ID=91568809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322292823.3U Active CN221206144U (en) | 2023-08-25 | 2023-08-25 | Self-sealing medicine taking device for needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221206144U (en) |
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2023
- 2023-08-25 CN CN202322292823.3U patent/CN221206144U/en active Active
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