CN211410481U - Medical syringe - Google Patents
Medical syringe Download PDFInfo
- Publication number
- CN211410481U CN211410481U CN201921779500.4U CN201921779500U CN211410481U CN 211410481 U CN211410481 U CN 211410481U CN 201921779500 U CN201921779500 U CN 201921779500U CN 211410481 U CN211410481 U CN 211410481U
- Authority
- CN
- China
- Prior art keywords
- piston
- syringe
- injection
- screw
- apron
- 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
Links
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a medical injector, including the syringe, sliding fit connects first piston in the syringe, and the core bar is connected to first piston one side, and sliding fit connects the second piston in the syringe, connects the apron in syringe one end, and fixed connection spring between apron and second piston is equipped with the screw hole in the center department of apron, at threaded hole female connection screw, screw one end is connected with the contact of second piston, is equipped with the catheter on the second piston, and the catheter runs through second piston and apron in proper order. The utility model discloses a rotation screw promotes the second piston and removes, thereby can change the utility model discloses what of the liquid storage volume in the injection syringe promotes the core bar and can realize the ration injection, does not have the risk of any excessive injection.
Description
Technical Field
The utility model belongs to the technical field of medical apparatus, concretely relates to medical syringe.
Background
The existing injector consists of an injection tube, a piston and a core rod, wherein the core rod is pushed by hands during injection to drive the piston to move towards an injection port, so that liquid in the injection tube is pushed to be injected into a target body. The injection amount of the liquid is manually judged through scales on the injection tube, the accuracy of the injection amount is not high, the injection amount is greatly influenced by human factors, and the injection amount is easily pushed to pass through the head, so that the disposable injection amount is overlarge, and medical accidents are possibly caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a medical injector to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a medical injector, includes the syringe, the first piston of sliding fit connection in the syringe, first piston one side is connected the core bar, sliding fit connection second piston in the syringe, connect the apron in syringe one end, fixed connection spring between apron and second piston, the center department at the apron is equipped with the screw hole, at screw hole female connection screw, screw one end and second piston contact connection are equipped with the catheter on the second piston, the catheter runs through second piston and apron in proper order.
Preferably, a baffle ring is fixedly connected to one end of the injection tube, and the core rod penetrates through the center of the baffle ring.
Preferably, one end of the core rod is fixedly connected with the push-pull plate.
Preferably, the first piston and the second piston have the same structure, and each of the first piston and the second piston comprises a circular plate, and a rubber ring is sleeved outside the circular plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a medical injector promotes the second piston through the rotating screw and removes when using, thereby can change the utility model discloses what of the liquid storage volume in the injection syringe promotes the core bar and can realize quantitative injection, does not have the risk of any excessive injection.
Drawings
Fig. 1 is a schematic diagram of the basic structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a medical injector as shown in figure 1, including injection syringe 1, sliding fit connects first piston 2 in injection syringe 1, and first piston 2 includes the plectane, cup joints the rubber ring in the plectane outside, and core bar 3 is connected to 2 one sides of first piston, at 3 one end fixed connection push-and-pull plates 31 of core bar, through the convenient promotion of push-and-pull plates 31 or pulling core bar 3. The injection tube 1 is connected with a second piston 4 in a sliding fit mode, the second piston 4 and the first piston 2 have the same structure, the second piston and the first piston both comprise circular plates, and rubber rings are sleeved on the outer sides of the circular plates. The injection device is characterized in that one end of the injection tube 1 is connected with a cover plate 5, a spring 7 is fixedly connected between the cover plate 5 and the second piston 4, a threaded hole is formed in the center of the cover plate 5, a screw 6 is connected with the screw in the threaded hole in a threaded mode, the screw 6 penetrates through the center of the spring, one end of the screw 6 is in contact connection with the second piston 4, a liquid guide tube 8 is arranged on the second piston 4, a needle head is detachably connected onto the liquid guide tube 8, and the liquid guide tube 8 sequentially penetrates through the second piston 4 and the. The outer side of the liquid guide tube 8 is provided with scale marks, one end of the injection tube 1 is fixedly connected with a baffle ring 9, and the core rod 3 penetrates through the center of the baffle ring 9. The stopper ring 9 can limit the first piston 2 and prevent the first piston 2 from escaping from the syringe 1.
When initial state, spring 7 is in free state, during the use, promotes second piston 4 through rotating screw 6 and removes to can change the utility model discloses what of the liquid storage volume in the injection syringe 1 promotes core bar 3 and can realize quantitative injection, does not have any risk of excessive injection. When the screw 6 is loosened, the second piston 4 is reset under the action of the spring.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.
Claims (4)
1. A medical injector comprises a syringe (1), a first piston (2) is connected in the syringe (1) in a sliding fit mode, a core rod (3) is connected to one side of the first piston (2), and the medical injector is characterized in that: the injection tube is characterized in that a second piston (4) is connected with the injection tube (1) in a sliding fit mode, one end of the injection tube (1) is connected with a cover plate (5), a spring (7) is fixedly connected between the cover plate (5) and the second piston (4), a threaded hole is formed in the center of the cover plate (5), a screw (6) is connected with the second piston (4) in a threaded hole in a contacting mode, a liquid guide pipe (8) is arranged on the second piston (4), and the liquid guide pipe (8) penetrates through the second piston (4) and the cover plate (5) in sequence.
2. A medical injector according to claim 1, characterized in that: one end of the injection tube (1) is fixedly connected with a baffle ring (9), and the core rod (3) penetrates through the center of the baffle ring (9).
3. A medical injector according to claim 1, characterized in that: one end of the core rod (3) is fixedly connected with a push-pull plate (31).
4. A medical injector according to claim 1, characterized in that: the first piston (2) and the second piston (4) are identical in structure and comprise circular plates, and rubber rings are sleeved on the outer sides of the circular plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779500.4U CN211410481U (en) | 2019-10-23 | 2019-10-23 | Medical syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779500.4U CN211410481U (en) | 2019-10-23 | 2019-10-23 | Medical syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211410481U true CN211410481U (en) | 2020-09-04 |
Family
ID=72281987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921779500.4U Expired - Fee Related CN211410481U (en) | 2019-10-23 | 2019-10-23 | Medical syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211410481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274625A (en) * | 2021-04-09 | 2021-08-20 | 中国人民解放军空军军医大学 | Gastroenterology esophagus medicine feeding device |
-
2019
- 2019-10-23 CN CN201921779500.4U patent/CN211410481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274625A (en) * | 2021-04-09 | 2021-08-20 | 中国人民解放军空军军医大学 | Gastroenterology esophagus medicine feeding device |
| CN113274625B (en) * | 2021-04-09 | 2024-04-26 | 中国人民解放军空军军医大学 | Esophagus medicine feeding device for gastroenterology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211410481U (en) | Medical syringe | |
| CN103462649A (en) | Special dropper for skin prick test | |
| CN215961569U (en) | Gynecological inflammation treatment and repair device | |
| CN211409521U (en) | Gun type syringe for veterinarian | |
| CN211272381U (en) | Medicine pumping and injecting device | |
| CN211327488U (en) | Syringe with a needle | |
| CN203074713U (en) | Blood sampling device for clinical laboratory | |
| CN211383120U (en) | Pre-filled tube flushing injector | |
| CN201227461Y (en) | Self-destruction syringe | |
| CN201921240U (en) | Needle retraction syringe | |
| CN210631339U (en) | Medical injection device of security height's animal | |
| CN204708864U (en) | A kind of instrument backflow preventing structure and comprise its blood taking needle of taking a blood sample | |
| CN213822948U (en) | Insulin pump catheter needle boosting injection device | |
| CN212730055U (en) | Quantitative administration device for treating chronic periodontitis | |
| CN204699151U (en) | A kind of being more suitable for rescues the transfusion drip tube device used | |
| CN204501643U (en) | A kind of transfusion bag for infusion solutions | |
| CN214550518U (en) | Insulin pump for diabetes | |
| CN209059224U (en) | A kind of blood sampling test tube protective device | |
| CN204121589U (en) | Infant constipation processor | |
| CN216319267U (en) | Interface of injection device of medical injector | |
| CN211825126U (en) | Soil sampling tube for environmental monitoring | |
| CN206499467U (en) | Internal fistula puncture blood collecting pin | |
| CN221084345U (en) | Puncture-preventing intravenous puncture needle | |
| CN221243650U (en) | Omnibearing anesthesia injector | |
| CN215134593U (en) | Novel urethral catheterization device for bladder perfusion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200904 |