CN204972542U - Take limit structure's injection device - Google Patents
Take limit structure's injection device Download PDFInfo
- Publication number
- CN204972542U CN204972542U CN201520695725.7U CN201520695725U CN204972542U CN 204972542 U CN204972542 U CN 204972542U CN 201520695725 U CN201520695725 U CN 201520695725U CN 204972542 U CN204972542 U CN 204972542U
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- CN
- China
- Prior art keywords
- piston rod
- syringe cylinder
- hole
- injection device
- 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.)
- Expired - Fee Related
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Abstract
The practicality discloses a take limit structure's injection device, and including a syringe section of thick bamboo, piston rod, piston, syringe bobbin top wall is opened has the through -hole to the outside extension of the outer peripheral edges of through -hole has a neck ring, and it has the liquid outlet to open on the syringe bobbin base wall, and the through -hole switches on with the liquid outlet, and the piston rod cartridge still includes the limit baffle of fixed mounting on the neck ring in a syringe section of thick bamboo, and limit baffle's one end is extended along the radial direction of a syringe section of thick bamboo and is close to the backstop portion at the center of through -hole, seted up a draw -in groove in the backstop portion, the lateral wall of piston rod outwards extends the fastener, the fastener is by a plurality of edges the card that the axial direction of piston rod arranged in proper order ends the piece and constitutes, adjacent card end form between the piece one be used for with the checkpost of draw -in groove joint. The utility model discloses can effectual control the volume of injection and extraction to can be in advance the syringe setting in certain volume, thereby utilize the negative pressure slowly to extract, saved the manpower.
Description
Technical field
This utility model belongs to medical apparatus and instruments aspect, particularly a kind of accurate control injection, extraction capacity and can keep extraction capacity syringe, feed fill with device.
Background technology
Syringe in the market, hello filling device have capacity and scale, but control capability needs medical personnel to carry out Non-follow control by human eye, under these circumstances, often can not very effective control injection and extract amount, and the state needing medical personnel firmly to remain extraction is also a kind of consumption to manpower always.Therefore, solve syringe, feed and fill with device and extract the problem of accurate quantitative analysis, and obtain different capacity according to different scales and become the problem that those skilled in the art need to solve.
Utility model content
The purpose of this utility model is to provide a kind of injection device with position limiting structure, and this syringe, hello filling device accurately can control the amount of injecting and extracting.
To achieve these goals, this utility model provides a kind of injection device with position limiting structure, comprise syringe cylinder, piston rod, piston, syringe cylinder roof has through hole, and the outer peripheral edge of through hole is outward extended with a neck ring, syringe cylinder diapire has liquid outlet, through hole and liquid outlet conducting, piston is arranged on bottom piston rod, piston rod by described through-hole mounting also can be moved along the axial direction of described syringe cylinder and can rotate around the axis of described syringe cylinder in syringe cylinder, the axis of piston rod overlaps with the axis of syringe cylinder, also comprise the postive stop baffle be fixedly mounted in neck ring, one end of postive stop baffle extends one near the stopper section at the center of described through hole along the radial direction of syringe cylinder, described stopper section offers a draw-in groove, the sidewall of piston rod extends outward fastener, described fastener is made up of multiple hooking sheet be arranged in order along the axial direction of described piston rod, one is formed for the clamp with described draw-in groove clamping between adjacent hooking sheet.
Preferably, hooking sheet equidistantly distributes along the axial direction of piston rod.
Preferably, the quantity of postive stop baffle is two, and two postive stop baffles, are symmetricly set in neck ring for axis of symmetry with the axis of syringe cylinder.
Preferably, the quantity of described fastener is two, and two fasteners for axis of symmetry, are symmetricly set on the both sides of piston rod with the axis of piston rod.
Preferably, the quantity of described fastener is four, and four fasteners are uniformly distributed along the periphery of the sidewall of piston rod, to make the cross section of piston rod in " ten " font.
Preferably, also comprise piston handle, piston handle is arranged on the top of piston rod.
The beneficial effects of the utility model:
Effectively can not only control the amount of injecting and extracting, and when needing extraction to measure accordingly, first syringe can be arranged on certain scale, then slowly be extracted by negative pressure, save manpower, control capacity.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of the injection device of the band position limiting structure of this utility model preferred embodiment;
Fig. 2 is the schematic diagram of the fractionation structure of the injection device of the band position limiting structure of this utility model preferred embodiment;
Fig. 3 is the partial enlarged drawing at A place in Fig. 2.
Reference numeral: 1, piston handle; 2, piston rod; 3, piston; 4, postive stop baffle; 5, syringe cylinder; 6, hooking sheet; 7, neck ring; 8, clamp; 9, draw-in groove.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, this utility model is described further:
With reference to figure 1, the injection device of band position limiting structure comprises piston handle 1, piston rod 2, piston 3, positive stop block 4, syringe cylinder 5, hooking sheet 6, neck ring 7, clamp 8, draw-in groove 9.Piston handle 1 is arranged on the top of piston rod 2, syringe cylinder 5 roof has through hole, and the outer peripheral edge of through hole is outward extended with a neck ring 7, namely be the top peripheral edge of neck ring 7 at syringe cylinder 5, syringe cylinder 5 diapire has liquid outlet, through hole and liquid outlet conducting, piston 3 is arranged on bottom piston rod 2, piston rod 2 by described through-hole mounting also can be moved along the axial direction of described syringe cylinder 5 and can rotate around the axis of described syringe cylinder in syringe cylinder 5, the axis of piston rod overlaps with the axis of syringe cylinder, postive stop baffle 4 is fixedly mounted in neck ring 7, one end of postive stop baffle 4 extends one near the stopper section at the center of described through hole along the radial direction of syringe cylinder 5, stopper section is exactly part postive stop baffle 4 exceeding through hole, the quantity of postive stop baffle 4 is two, two postive stop baffles with the axis of syringe cylinder 5 for axis of symmetry, be symmetricly set in neck ring 7.Described stopper section offers a draw-in groove 9, the effect of draw-in groove 9 is that the fastener in order to extend outward with the sidewall of piston rod 2 coordinates screens, can allow like this piston rod more stable be stuck in a position, described fastener is made up of multiple hooking sheet 6 be arranged in order along the axial direction of described piston rod 2, hooking sheet 6 equidistantly distributes along the axial direction of piston rod 2, form one between adjacent hooking sheet 6 for the clamp 8 with the clamping of described draw-in groove 9, clamp 8 can be good at snapping in the draw-in groove 9 of stopper section.The quantity of fastener is four, four fasteners are uniformly distributed along the periphery of the sidewall of piston rod 2, to make the cross section of piston rod 2 in " ten " font, in order to be to allow piston rod 2 rotate screens, piston rod 2 is facilitated to slide up and down, the obstacle not causing the fastener on postive stop baffle 4 to become piston rod 2 to slide up and down.
Principle process of the present utility model, when using as extracting liquid, piston 3 is in the place of bottom close to liquid outlet of syringe cylinder 5, and the fastener of piston rod 2 and the stopper section of postive stop baffle 4 be not on same perpendicular.Upwards extract when arriving certain scale, by rotary-piston bar 2 clamp 8 on fastener snapped in the draw-in groove 9 on postive stop baffle 4.Capacity from a clamp to another adjacent clamp is 10ml, and piston rod 2 outer wall also has the corresponding scale that indicates to read data.If need to continue to extract, then piston rod 2 is rotated an angle fastener and stop portion from, thus extraction can be continued.
Or, in time needing certain amount, can directly scale card 6 be put at certain scale, then by the effect of negative pressure, the liquid of outside is drawn into syringe cylinder 5 inner.
According to above-described embodiment, the quantity of the fastener of piston rod 2 can also be two, and two fasteners are symmetrical about 2 one-tenth, piston rod central shaft, under these circumstances, is also can complete by the principle process of above-mentioned description the operation quantitatively extracted.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of this utility model claim.
Claims (6)
1. the injection device with position limiting structure, comprise syringe cylinder, piston rod, piston, syringe cylinder roof has through hole, and the outer peripheral edge of through hole is outward extended with a neck ring, syringe cylinder diapire has liquid outlet, through hole and liquid outlet conducting, piston is arranged on bottom piston rod, piston rod by described through-hole mounting also can be moved along the axial direction of described syringe cylinder and can rotate around the axis of described syringe cylinder in syringe cylinder, the axis of piston rod overlaps with the axis of syringe cylinder, it is characterized in that, also comprise the postive stop baffle be fixedly mounted in neck ring, one end of postive stop baffle extends one near the stopper section at the center of described through hole along the radial direction of syringe cylinder, described stopper section offers a draw-in groove, the sidewall of piston rod extends outward fastener, described fastener is made up of multiple hooking sheet be arranged in order along the axial direction of described piston rod, one is formed for the clamp with described draw-in groove clamping between adjacent hooking sheet.
2. the injection device of band position limiting structure as claimed in claim 1, it is characterized in that, hooking sheet equidistantly distributes along the axial direction of piston rod.
3. the injection device of band position limiting structure as claimed in claim 1, it is characterized in that, the quantity of postive stop baffle is two, and two postive stop baffles, are symmetricly set in neck ring for axis of symmetry with the axis of syringe cylinder.
4. the injection device of band position limiting structure as claimed in claim 3, it is characterized in that, the quantity of described fastener is two, and two fasteners for axis of symmetry, are symmetricly set on the both sides of piston rod with the axis of piston rod.
5. the injection device of band position limiting structure as claimed in claim 3, it is characterized in that, the quantity of described fastener is four, and four fasteners are uniformly distributed along the periphery of the sidewall of piston rod, to make the cross section of piston rod in " ten " font.
6. the injection device of band position limiting structure as claimed in claim 1, it is characterized in that, also comprise piston handle, piston handle is arranged on the top of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695725.7U CN204972542U (en) | 2015-09-09 | 2015-09-09 | Take limit structure's injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695725.7U CN204972542U (en) | 2015-09-09 | 2015-09-09 | Take limit structure's injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204972542U true CN204972542U (en) | 2016-01-20 |
Family
ID=55106967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520695725.7U Expired - Fee Related CN204972542U (en) | 2015-09-09 | 2015-09-09 | Take limit structure's injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204972542U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN106900286A (en) * | 2017-05-09 | 2017-06-30 | 河北农业大学 | A kind of suction type plant bleeding liquor collecting device |
| CN107961402A (en) * | 2017-12-19 | 2018-04-27 | 广州科荟泽生物科技有限公司 | A kind of negative pressure aspirator |
| CN110624162A (en) * | 2019-09-27 | 2019-12-31 | 郑州大学第五附属医院 | Safety needle device |
| CN111491680A (en) * | 2017-12-13 | 2020-08-04 | 里珍纳龙药品有限公司 | Device and method for precise dose delivery |
| CN113456173A (en) * | 2021-07-01 | 2021-10-01 | 吉林大学 | Cerebral nerve and blood vessel thrombus removing device |
| US11439758B2 (en) | 2019-06-05 | 2022-09-13 | Regeneron Pharmaceuticals, Inc. | Devices and methods for precision dose delivery |
| CN107961402B (en) * | 2017-12-19 | 2024-04-26 | 广州科荟泽生物科技有限公司 | Negative pressure aspirator |
-
2015
- 2015-09-09 CN CN201520695725.7U patent/CN204972542U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN105797223B (en) * | 2016-05-16 | 2018-03-30 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN106900286A (en) * | 2017-05-09 | 2017-06-30 | 河北农业大学 | A kind of suction type plant bleeding liquor collecting device |
| CN111491680A (en) * | 2017-12-13 | 2020-08-04 | 里珍纳龙药品有限公司 | Device and method for precise dose delivery |
| US11433186B2 (en) | 2017-12-13 | 2022-09-06 | Regeneron Pharmaceuticals, Inc. | Devices and methods for precision dose delivery |
| CN111491680B (en) * | 2017-12-13 | 2023-08-29 | 里珍纳龙药品有限公司 | Device and method for accurate dose delivery |
| CN107961402A (en) * | 2017-12-19 | 2018-04-27 | 广州科荟泽生物科技有限公司 | A kind of negative pressure aspirator |
| CN107961402B (en) * | 2017-12-19 | 2024-04-26 | 广州科荟泽生物科技有限公司 | Negative pressure aspirator |
| US11439758B2 (en) | 2019-06-05 | 2022-09-13 | Regeneron Pharmaceuticals, Inc. | Devices and methods for precision dose delivery |
| CN110624162A (en) * | 2019-09-27 | 2019-12-31 | 郑州大学第五附属医院 | Safety needle device |
| CN113456173A (en) * | 2021-07-01 | 2021-10-01 | 吉林大学 | Cerebral nerve and blood vessel thrombus removing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |