CN115608432B - Micro-syringe - Google Patents
Micro-syringe Download PDFInfo
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- CN115608432B CN115608432B CN202211629230.5A CN202211629230A CN115608432B CN 115608432 B CN115608432 B CN 115608432B CN 202211629230 A CN202211629230 A CN 202211629230A CN 115608432 B CN115608432 B CN 115608432B
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- Prior art keywords
- limiting
- adjusting
- injector
- locking
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
Abstract
The invention discloses a micro-injector which comprises an injector, an adjusting component and a limiting component, wherein one end of the adjusting component is connected with a needle tube of the injector, the other end of the adjusting component is connected with a piston rod of the injector, one end of the limiting component is connected with the needle tube of the injector, and the other end of the limiting component is connected with a needle head of the injector; the adjusting assembly comprises a fixing component and an adjusting component, one end of the fixing component is connected with the needle tube of the injector, the other end of the fixing component is connected with one end of the adjusting component, and the other end of the adjusting component is connected with the piston rod of the injector. Compared with the existing micro-injector, the technical scheme of the invention realizes visualization and precision of injection by arranging the injector, the adjusting assembly and the limiting assembly, and the injection amount in the actual operation process can accurately reach the expected value by the adjusting assembly.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a micro-injector.
Background
Microsyringes are widely used in medical and biological related experimental procedures. At present, the injection amount of a microinjector during use needs to be estimated by experience of operators, and the standard of visualization precision is difficult to achieve, so that the injection amount in the actual operation process is difficult to accurately achieve the expected value.
The invention aims at the problems and provides a micro-syringe.
Disclosure of Invention
In order to overcome the problems in the background art, the invention adopts the following technical scheme:
a micro-injector comprises an injector, an adjusting component and a limiting component, wherein one end of the adjusting component is connected with a needle tube of the injector, the other end of the adjusting component is connected with a piston rod of the injector, one end of the limiting component is connected with the needle tube of the injector, and the other end of the limiting component is connected with a needle head of the injector; the adjusting assembly comprises a fixing part and an adjusting part, one end of the fixing part is connected with the needle tube of the injector, the other end of the fixing part is connected with one end of the adjusting part, and the other end of the adjusting part is connected with the piston rod of the injector.
In some embodiments of the present application, the adjusting part includes an adjusting piece and a rotating piece, one end of the rotating piece is connected with the fixing part, the other end of the rotating piece is connected with one end of the adjusting piece, and the other end of the adjusting piece is connected with the fixing part.
Further, be equipped with first spacing hole on the regulating part, be equipped with the spacing hole of second on the fixed part, the opening in first spacing hole is the rectangle form, the open-ended length direction's in first spacing hole the central axis with the length direction's of regulating part the central axis is parallel, first spacing hole and the spacing hole of second all set up at least two, the fixed part with first spacing hole swing joint, the regulating part with the spacing hole swing joint of second.
In some embodiments of the present application, the adjustment assembly includes a locking member having one end connected to the fixed member and the other end connected to the rotating member.
Further, the locking part comprises a first locking part and a second locking part, and the first locking part and the second locking part are symmetrically distributed about the central axis of the fixing part; first locking part includes locking draw-in groove and retaining member, the one end of locking draw-in groove with fixed part is connected, the other end of locking draw-in groove with the connection can be dismantled to the one end of retaining member, the other end of retaining member with rotate a swing joint. The locking clamping grooves are distributed in a circumferential array along the inner side wall of the fixing part.
Further, a first placing groove and a second placing groove are formed in the rotating piece, the first placing groove and the second placing groove are symmetrically distributed about the central axis of the fixed part, a spring is arranged on the locking piece, the locking piece is located in the first placing groove, one end of the spring is connected with the locking piece, and the other end of the spring is connected with the first placing groove; the second locking member is provided with the same structure as the first locking member.
In some embodiments of the present application, the limiting component includes a first limiting part and a second limiting part, the first limiting part is provided with a first through hole, the second limiting part is provided with a second through hole, the needle head of the syringe penetrates through the first through hole, the needle head of the syringe is detachably connected with the second through hole, the first limiting part is connected with one end of the second limiting part, and the other end of the second limiting part is connected with the needle tube of the syringe.
Further, be equipped with spacing chamber on the locating part one, the inside wall diameter in spacing chamber begins to descend progressively to the other end from spacing chamber and the nearer one end of locating part two distance, spacing chamber with the connection can be dismantled to locating part two, be equipped with first cell body on the locating part two, first cell body sets up at least three, first cell body is the circumference array and distributes on locating part two.
The invention has the beneficial effects that: compared with the existing micro-injector, the technical scheme of the invention realizes visualization and precision of injection by arranging the injector, the adjusting assembly and the limiting assembly, and the injection amount in the actual operation process can accurately reach the expected value by the adjusting assembly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the adjusting assembly of the present invention;
FIG. 3 is a schematic diagram of the overall structure of the present invention, shown disassembled;
FIG. 4 is a cross-sectional view of an adjustment assembly of the present invention;
FIG. 5 is a sectional view showing the structure of the fixing member, the rotating member and the adjusting member according to the present invention;
FIG. 6 is a cross-sectional view of the fixed member and the rotating member according to the present invention;
FIG. 7 is a schematic view of the structure of the fixing member of the present invention;
FIG. 8 is a schematic view of a rotating member according to the present invention;
FIG. 9 is a schematic view of the needle head structure of the present invention;
FIG. 10 is a diagram illustrating a second structure of a position-limiting element according to the present invention;
FIG. 11 is a cross-sectional view of the construction of the spacing assembly of the present invention;
in the figure, 1, a fixing part; 11. a rotating member; 111. a locking member; 112. a spring; 12. an adjustment member; 121. a hand-held portion; 122. a first limiting hole; 13. a second limiting hole; 14. locking the clamping groove; 2. a piston rod; 21. a needle head; 3. a first limiting part; 31. a second limiting part; 32. and a limiting cavity.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Fig. 1 to 11 show the main technical contents of the present embodiment, and the present embodiment provides a micro-syringe, which includes a syringe, an adjustment assembly and a stopper assembly, one end of the adjustment assembly is connected to a needle tube of the syringe, the other end of the adjustment assembly is connected to a piston rod 2 of the syringe, one end of the stopper assembly is connected to the needle tube of the syringe, and the other end of the stopper assembly is connected to a needle 21 of the syringe. More specifically, the adjusting assembly comprises a fixing part 1 and an adjusting part, wherein one end of the fixing part 1 is connected with a needle tube of the injector, the other end of the fixing part 1 is connected with one end of the adjusting part, and the other end of the adjusting part is connected with a piston rod 2 of the injector.
In the present embodiment, the adjusting part includes an adjusting member 12 and a rotating member 11, one end of the rotating member 11 is connected to the fixed part 1, the other end of the rotating member 11 is connected to one end of the adjusting member 12, and the other end of the adjusting member 12 is connected to the fixed part 1. More specifically, the inner side wall of the rotating member 11 is provided with threads, and the outer side wall of the adjusting member 12 is provided with a thread section which is matched with the inner side wall of the rotating member 11. The rotation of the rotor 11 causes the thread on the inner side wall of the rotor 11 to move the adjusting member 12, thereby determining the injection amount. The adjusting member 12 is provided with a hand-held portion 121, and the hand-held portion 121 is connected to the adjusting member 12. Through the arrangement, the operator can better grasp the injector to inject. Be equipped with first spacing hole 122 on the regulating part 12, be equipped with the spacing hole 13 of second on the fixed part 1, the opening of first spacing hole 122 is the rectangle form, the central axis of the open-ended length direction in first spacing hole 122 is parallel with the central axis of the length direction of regulating part 12, first spacing hole 122 and the spacing hole 13 of second all set up at least two, fixed part 1 and first spacing hole 122 swing joint, regulating part 12 and the spacing hole 13 swing joint of second. Through the arrangement, the adjusting piece 12 can only move relatively with respect to the fixed part 1 and cannot rotate relatively under the driving of the rotating piece 11, so that an operator can hold the injector more conveniently.
In this embodiment, the adjustment assembly includes a locking member having one end connected to the fixed member 1 and the other end connected to the rotating member 11. By this arrangement, the adjustment member 12 is prevented from being moved without human intervention, thereby affecting the accuracy of the injection volume. More specifically, the locking means includes a first locking means and a second locking means, and the first locking means and the second locking means are symmetrically distributed about the central axis of the fixing member 1. The first locking part comprises a locking clamping groove 14 and a locking part 111, one end of the locking clamping groove 14 is connected with the fixed part 1, the other end of the locking clamping groove 14 is detachably connected with one end of the locking part 111, and the other end of the locking part 111 is movably connected with the rotating part 11. The locking pockets 14 are arranged in a circumferential array along the inner side wall of the fixing element 1. The rotating part 11 is provided with a first placing groove and a second placing groove, the first placing groove and the second placing groove are symmetrically distributed about the central axis of the fixing part 1, the locking part 111 is provided with a spring 112, one end of the locking part 111, located in the first placing groove, of the spring 112 is connected with the locking part 111, and the other end of the spring 112 is connected with the first placing groove. The second locking member is provided with the same structure as the first locking member. During the specific use, operating personnel can be through pressing retaining member 111, retaining member 111 and the separation of locking draw-in groove 14 that makes, rotate this moment and rotate a piece 11, it drives regulating part 12 and removes to rotate a piece 11, during the removal under the effect of first spacing hole 122 and the spacing hole 13 of second, regulating part 12 can only carry out relative movement about fixed part 1, and relative rotation can not take place, regulating part 12 removes and loosens retaining member 111 after the predetermined height, retaining member 111 cooperates with locking draw-in groove 14 this moment, thereby it fixes to rotate a piece 11, prevent to rotate a piece 11 and rotate, and then fix regulating part 12, ensure the accuracy of injection volume.
In this embodiment, the limiting component includes a first limiting member 3 and a second limiting member 31, the first limiting member 3 is provided with a first through hole, the second limiting member 31 is provided with a second through hole, the first through hole penetrates through the needle head 21 of the syringe, the needle head 21 of the syringe is detachably connected with the second through hole, the first limiting member 3 is connected with one end of the second limiting member 31, and the other end of the second limiting member 31 is connected with the needle tube of the syringe. More specifically, the first limiting member 3 is connected to the second limiting member 31 through a screw thread. Be equipped with spacing chamber 32 on locating part 3, the inside wall diameter in spacing chamber 32 begins to descend progressively to the other end from spacing chamber 32 and the nearer one end of two 31 distances of locating part, and spacing chamber 32 can be dismantled with two 31 locating parts and be connected, is equipped with first cell body on two 31 locating parts, and first cell body sets up at least three, and first cell body is the circumference array and distributes on two 31 locating parts.
In this embodiment, the adjusting member 12 is provided with a scale. The position of the adjusting part 12 is determined by the scale, so that the accuracy of the injection amount is ensured. The length of the adjustment member 12 is greater than or equal to the length of the barrel of the syringe. This arrangement ensures that all of the liquid in the syringe is injected. And an anti-slip pad is arranged on the inner side wall of the second through hole, one end of the anti-slip pad is connected with the inner side wall of the second through hole, and the other end of the anti-slip pad is connected with the needle head 21 of the syringe. The arrangement can ensure that the needle 21 of the injector does not move relative to the first limiting part 3 and the second limiting part 31 during injection.
The use method and the working principle of the invention are as follows: during the specific use, operating personnel can be through pressing the retaining member, retaining member and the separation of locking draw-in groove that makes, rotate this moment and rotate the piece, it drives the regulating part and removes to rotate the piece, under the effect in first spacing hole and the spacing hole of second during the removal, the regulating part can only carry out relative movement about fixed part, and relative rotation can not take place, the retaining member is loosened after the regulating part removes predetermined height, the retaining member cooperates with the locking draw-in groove this moment, thereby it fixes to rotate the piece, prevent to rotate the piece and rotate, and then fix the regulating part, ensure the accuracy of injection volume.
The above description of the embodiments is only intended for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (8)
1. A micro-injector comprises an injector, an adjusting component and a limiting component, and is characterized in that one end of the adjusting component is connected with a needle tube of the injector, the other end of the adjusting component is connected with a piston rod of the injector, one end of the limiting component is connected with the needle tube of the injector, and the other end of the limiting component is connected with a needle head of the injector; the adjusting assembly comprises a fixing part and an adjusting part, one end of the fixing part is connected with the needle tube of the injector, the other end of the fixing part is connected with one end of the adjusting part, and the other end of the adjusting part is connected with the piston rod of the injector; the adjusting part comprises an adjusting piece and a rotating piece, one end of the rotating piece is connected with the fixed part, the other end of the rotating piece is connected with one end of the adjusting piece, and the other end of the adjusting piece is connected with the fixed part; the adjusting part is provided with a first limiting hole, the fixing part is provided with a second limiting hole, the opening of the first limiting hole is rectangular, the central axis of the opening of the first limiting hole in the length direction is parallel to the central axis of the adjusting part in the length direction, at least two first limiting holes and at least two second limiting holes are arranged, the fixing part is movably connected with the first limiting hole, and the adjusting part is movably connected with the second limiting hole; the inner side wall of the rotating part is provided with threads, and the outer side wall of the adjusting part is provided with a thread section matched with the inner side wall of the rotating part.
2. The micro-injector of claim 1, wherein the adjustment assembly comprises a locking member, one end of the locking member being connected to the fixed member and the other end of the locking member being connected to the rotational member.
3. The microsyringe of claim 2, wherein the locking means comprises a first locking means and a second locking means, the first locking means and the second locking means being symmetrically disposed about a central axis of the fixation means; the first locking part comprises a locking clamping groove and a locking part, one end of the locking clamping groove is connected with the fixed part, the other end of the locking clamping groove is detachably connected with one end of the locking part, and the other end of the locking part is movably connected with the rotating part; the locking clamping grooves are distributed in a circumferential array along the inner side wall of the fixing part.
4. The micro-injector according to claim 3, wherein the rotating member is provided with a first placement groove and a second placement groove, the first placement groove and the second placement groove are symmetrically distributed about the central axis of the fixing member, the locking member is provided with a spring, the locking member is positioned in the first placement groove, one end of the spring is connected with the locking member, and the other end of the spring is connected with the first placement groove; the second locking member is provided with the same structure as the first locking member.
5. The micro-syringe of claim 1, wherein the limiting assembly comprises a first limiting part and a second limiting part, the first limiting part is provided with a first through hole, the second limiting part is provided with a second through hole, the needle head of the syringe penetrates through the first through hole, the needle head of the syringe is detachably connected with the second through hole, the first limiting part is connected with one end of the second limiting part, and the other end of the second limiting part is connected with the needle tube of the syringe.
6. The micro-syringe of claim 5, wherein the first limiting part is provided with a limiting cavity, the diameter of the inner side wall of the limiting cavity gradually decreases from one end of the limiting cavity close to the second limiting part to the other end, the limiting cavity is detachably connected with the second limiting part, the second limiting part is provided with at least three first groove bodies, and the first groove bodies are distributed on the second limiting part in a circumferential array manner.
7. The microinjector of claim 6 wherein the length of the adjusting member is greater than or equal to the length of the barrel of the injector.
8. The micro-syringe of claim 7, wherein a non-slip pad is disposed on the inner sidewall of the second through hole, one end of the non-slip pad is connected to the inner sidewall of the second through hole, and the other end of the non-slip pad is connected to the needle of the syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211629230.5A CN115608432B (en) | 2022-12-19 | 2022-12-19 | Micro-syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211629230.5A CN115608432B (en) | 2022-12-19 | 2022-12-19 | Micro-syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115608432A CN115608432A (en) | 2023-01-17 |
| CN115608432B true CN115608432B (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211629230.5A Active CN115608432B (en) | 2022-12-19 | 2022-12-19 | Micro-syringe |
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| CN (1) | CN115608432B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432087B1 (en) * | 2000-07-31 | 2002-08-13 | Becton, Dickinson And Company | Hypodermic syringe with selectively retractable needle |
| CN101172177A (en) * | 2006-11-02 | 2008-05-07 | 贺长军 | Continuous injector injection regulating mechanism |
| CN208989897U (en) * | 2018-01-08 | 2019-06-18 | 长江大学 | A kind of simple insect microinjection apparatus |
| CN210813165U (en) * | 2019-09-16 | 2020-06-23 | 常州市双马医疗器材有限公司 | Disposable precision quantitative injector |
| CN213347240U (en) * | 2020-09-08 | 2021-06-04 | 首都医科大学附属北京佑安医院 | Dosage-controllable syringe for anesthesia department |
| CN115252970A (en) * | 2022-08-26 | 2022-11-01 | 广东省农垦中心医院 | Trace high-pressure injector with front spiral push rod capable of being quickly assembled and disassembled |
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2022
- 2022-12-19 CN CN202211629230.5A patent/CN115608432B/en active Active
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| Publication number | Publication date |
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| CN115608432A (en) | 2023-01-17 |
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