CN212913540U - Syringe for injecting specific dose to specific depth for ophthalmology - Google Patents
Syringe for injecting specific dose to specific depth for ophthalmology Download PDFInfo
- Publication number
- CN212913540U CN212913540U CN202020771659.8U CN202020771659U CN212913540U CN 212913540 U CN212913540 U CN 212913540U CN 202020771659 U CN202020771659 U CN 202020771659U CN 212913540 U CN212913540 U CN 212913540U
- Authority
- CN
- China
- Prior art keywords
- needle tube
- needle
- wall
- thread
- limiting column
- 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
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 abstract description 13
- 239000007924 injection Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000024304 Choroidal Effusions Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an ophthalmic injector for injecting a specific dose to a specific depth, wherein an inner thread is arranged on the inner wall of a top opening of a needle tube, a thread limiting column is in threaded connection and matching with the inner thread, a scale mark II is arranged on the outer surface of the thread limiting column, a hole is vertically arranged in the thread limiting column in a penetrating way, and a push core penetrates through the hole and can slide up and down; the outer wall of the needle tube is provided with a first scale mark, and the outer wall of the needle tube is sleeved with a sliding sleeve disc and a threaded rotating wheel. The utility model discloses a set up screw thread runner, the spacing post of screw thread, threaded rod and syringe needle cover, make the operator can accurate definite puncture depth and injection dosage at the puncture in-process, the simplified operation flow improves injection precision and security, this syringe processing, convenient to use, security and reliability are high.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to injection syringe of injection specific dose to specific degree of depth that ophthalmology used.
Background
At present, a disposable injector for intraocular injection in ophthalmic clinic and scientific research work needs to puncture a needle head into an eye and push a core rod to inject medicine. The puncture depth during the process is judged subjectively by the puncture operator, and the indication scale of the cannula needs to be observed to determine the injected dosage. For example, when injecting into the suprachoroidal space or subretinal space, there is difficulty in locating the depth of penetration. In the process, the puncture depth cannot be quantified and is not accurate enough, and observation errors and inaccuracy are caused by observing the indication scales of the sleeve from different positions. Therefore, when intraocular injection is performed in ophthalmology, a syringe with simple structure and easy operation is needed.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome the defects of the prior art, the injector for injecting the specific dose to the specific depth for the ophthalmology department is provided, and the problems that the puncture depth of the existing ophthalmic injector cannot be quantified and is not accurate enough, and the observation error and the inaccuracy caused by observing the indication scale of the sleeve from different positions are solved.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides an injection syringe of specific dose to specific degree of depth that ophthalmology used, its characterized in that: the needle tube comprises a needle tube, a push core and a thread limiting column, wherein an internal thread is arranged on the inner wall of an opening at the top of the needle tube, the thread limiting column is in threaded connection and matching with the internal thread, a second scale mark is arranged on the outer surface of the thread limiting column, a hole is vertically formed in the thread limiting column in a penetrating mode, and the push core penetrates through the hole and can slide up and down; the needle tube is characterized in that a first scale mark is arranged on the outer wall of the needle tube, a sliding sleeve disc and a threaded rotating wheel are sleeved on the outer wall of the needle tube, a first connecting shaft sleeve is fixedly arranged on the side wall of the sliding sleeve disc, the bottom of the first connecting shaft sleeve is movably connected with a threaded rod, the bottom of the threaded rod is movably connected with a second connecting shaft sleeve, and the second connecting shaft sleeve is connected with a needle head sleeve through a connecting transverse rod; the threaded rotating wheel is positioned below the sliding sleeve disc and is in threaded connection and matching with the threaded rod, and a clamping clamp is arranged on the threaded rotating wheel and is fixedly connected with the outer wall of the needle tube; the bottom of the needle tube is provided with a needle head, and the needle head sleeve is nested on the needle head.
Furthermore, the internal thread is formed on the top opening inner wall of the needle tube, and the thread limiting column is screwed inside the needle tube through the internal thread.
By adopting the technical scheme, the thread limiting column is matched with the internal thread of the needle tube, and the thread limiting column can move up and down in the needle tube along the internal thread.
Furthermore, the sliding sleeve disc is nested on the outer wall of the needle tube and can slide up and down.
By adopting the technical scheme, the sliding sleeve disc plays a role in guiding and limiting.
Furthermore, the threaded rotating wheel is nested on the outer wall of the needle tube and can rotate freely, and the clamping clamp is fixedly connected with the outer wall of the needle tube through a clamping groove.
Further, the length of the needle cover is smaller than that of the needle, and the needle cover can be sleeved on the needle to slide up and down.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the ophthalmic injector aims to solve the problems that the puncture depth of the existing ophthalmic injector cannot be quantified and is not accurate enough, and the observation error and the inaccuracy are caused by observing the indication scales of the sleeve from different positions. The utility model discloses a set up screw thread runner, the spacing post of screw thread, threaded rod and syringe needle cover, make the operator can accurate definite puncture depth and injection dosage at the puncture in-process, the simplified operation flow improves injection precision and security, this syringe processing, convenient to use, security and reliability are high.
Drawings
Fig. 1 is a schematic diagram of an ophthalmic injector according to the present invention for injecting a specific dose to a specific depth;
FIG. 2 is a schematic view of the connection between the needle tube and the threaded stop post of an ophthalmic injector for injecting a specific dose to a specific depth according to the present invention;
fig. 3 is a perspective view of a syringe barrel of the present invention for ophthalmic use in injecting a specific dose to a specific depth.
The reference numerals are explained below:
1. a needle tube; 2. pushing the core; 3. a threaded spacing post; 4. a first scale mark; 5. a second scale mark; 6. a clamping clip; 7. a threaded rotating wheel; 8. a threaded rod; 9. a first connecting sleeve; 10. a sliding sleeve disc; 11. a needle cover; 12. a needle head; 13. an internal thread; 14. a hole; 15. a second connecting shaft sleeve; 16. the cross bars are connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the injector for ophthalmic use in the present embodiment, which injects a specific dose to a specific depth, is characterized in that: the needle tube comprises a needle tube 1, a push core 2 and a thread limiting column 3, wherein an internal thread 13 is arranged on the inner wall of an opening at the top of the needle tube 1, the thread limiting column 3 is in threaded connection and matching with the internal thread 13, a scale mark II 5 is arranged on the outer surface of the thread limiting column 3, a hole 14 is vertically arranged in the thread limiting column 3 in a penetrating manner, and the push core 2 penetrates through the hole 14 and can slide up and down; the needle tube 1 is provided with a scale mark I4 on the outer wall, a sliding sleeve disk 10 and a threaded rotating wheel 7 are sleeved on the outer wall of the needle tube 1, a first connecting shaft sleeve 9 is fixedly arranged on the side wall of the sliding sleeve disk 10, the bottom of the first connecting shaft sleeve 9 is movably connected with a threaded rod 8, the bottom of the threaded rod 8 is movably connected with a second connecting shaft sleeve 15, and the second connecting shaft sleeve 15 is connected with a needle head sleeve 11 through a connecting transverse rod 16; the threaded rotating wheel 7 is positioned below the sliding sleeve disc 10 and is in threaded connection and matching with the threaded rod 8, a clamping clamp 6 is arranged on the threaded rotating wheel 7, and the clamping clamp 6 is fixedly connected with the outer wall of the needle tube 1; the bottom of the needle tube 1 is provided with a needle head 12, and the needle head sleeve 11 is nested on the needle head 12.
The internal thread 13 is formed on the inner wall of the top opening of the needle tube 1, the thread limiting column 3 is screwed in the needle tube 1 through the internal thread 13, the thread limiting column 3 is matched with the internal thread of the needle tube 1, and the thread limiting column 3 can move up and down in the needle tube 1 along the internal thread 13.
The sliding sleeve disk 10 is nested on the outer wall of the needle tube 1 and can slide up and down, and the sliding sleeve disk 10 plays a role in guiding and limiting.
The threaded rotating wheel 7 is nested on the outer wall of the needle tube 1 and can rotate freely, and the clamping clamp 6 is fixedly connected with the outer wall of the needle tube 1 through a clamping groove.
The length of the needle cover 11 is less than that of the needle 12, and the needle cover 11 can slide up and down on the needle 12.
The specific implementation process of this embodiment is as follows: when the injector is used, the height position of the thread limiting column 3 in the needle tube 1 is firstly adjusted, the thread limiting column 3 can ascend or descend along the internal thread 13, and the outer surface of the thread limiting column 3 is provided with a second scale mark 5, so that the up-and-down movement distance of the push core 2 is limited, and the purpose of limiting the injection dosage of the needle tube 1 is achieved. Simultaneously, screw runner 7 is similar to the regulation pole of spanner, can be along 1 free rotation of needle tubing, and rotate on the fixed height position by the restriction of card position clamp 6, screw runner 7 is rotatory and rise simultaneously or descend through the spiral line drive threaded rod 8 on the outer wall, and then threaded rod 8 drives slip set 10 and syringe needle cover 11 and reciprocates, scale mark 4 on the outer wall of needle tubing 1 can the accurate exposure length who shows syringe needle 12, thereby adjust the exposure length of syringe needle 12, thereby reach the purpose of depthkeeping injection, can use at last and push away core 2 and inject into patient's intraocular with the medicament. The appearance of this design makes the operator can accurate definite puncture depth and injection dosage in the puncture process, simplifies the operation flow, improves injection precision and security, and this syringe processing, convenient to use, security and reliability are high.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (5)
1. An injector for ophthalmic use for injecting a specific dose to a specific depth, characterized by: the needle tube comprises a needle tube (1), a push core (2) and a thread limiting column (3), wherein an internal thread (13) is arranged on the inner wall of an opening at the top of the needle tube (1), the thread limiting column (3) is in threaded connection and matching with the internal thread (13), a second scale mark (5) is arranged on the outer surface of the thread limiting column (3), a hole (14) is vertically formed in the thread limiting column (3) in a penetrating manner, and the push core (2) penetrates through the hole (14) and can slide up and down; the needle tube comprises a needle tube (1), and is characterized in that the outer wall of the needle tube (1) is provided with a scale mark I (4), the outer wall of the needle tube (1) is sleeved with a sliding sleeve disc (10) and a threaded rotating wheel (7), the side wall of the sliding sleeve disc (10) is fixedly provided with a first connecting shaft sleeve (9), the bottom of the first connecting shaft sleeve (9) is movably connected with a threaded rod (8), the bottom of the threaded rod (8) is movably connected with a second connecting shaft sleeve (15), and the second connecting shaft sleeve (15) is connected with a needle head sleeve (11) through a connecting transverse rod (16); the threaded rotating wheel (7) is positioned below the sliding sleeve disc (10) and is in threaded connection and matching with the threaded rod (8), a clamping clamp (6) is arranged on the threaded rotating wheel (7), and the clamping clamp (6) is fixedly connected with the outer wall of the needle tube (1); the bottom of the needle tube (1) is provided with a needle head (12), and the needle head sleeve (11) is nested on the needle head (12).
2. An ophthalmic injector as claimed in claim 1, wherein the injector is adapted to inject a specific dose to a specific depth: the internal thread (13) is formed on the inner wall of the top opening of the needle tube (1), and the thread limiting column (3) is screwed in the needle tube (1) through the internal thread (13).
3. An ophthalmic injector as claimed in claim 1, wherein the injector is adapted to inject a specific dose to a specific depth: the sliding sleeve disc (10) is nested on the outer wall of the needle tube (1) and can slide up and down.
4. An ophthalmic injector as claimed in claim 1, wherein the injector is adapted to inject a specific dose to a specific depth: the thread rotating wheel (7) is nested on the outer wall of the needle tube (1) and can rotate freely, and the clamping clamp (6) is fixedly connected with the outer wall of the needle tube (1) through a clamping groove.
5. An ophthalmic injector as claimed in claim 1, wherein the injector is adapted to inject a specific dose to a specific depth: the length of the needle cover (11) is less than that of the needle (12), and the needle cover (11) can be sleeved on the needle (12) to slide up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020771659.8U CN212913540U (en) | 2020-05-12 | 2020-05-12 | Syringe for injecting specific dose to specific depth for ophthalmology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020771659.8U CN212913540U (en) | 2020-05-12 | 2020-05-12 | Syringe for injecting specific dose to specific depth for ophthalmology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212913540U true CN212913540U (en) | 2021-04-09 |
Family
ID=75315027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020771659.8U Expired - Fee Related CN212913540U (en) | 2020-05-12 | 2020-05-12 | Syringe for injecting specific dose to specific depth for ophthalmology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212913540U (en) |
-
2020
- 2020-05-12 CN CN202020771659.8U patent/CN212913540U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8758300B2 (en) | Improvements relating to the insertion of a medical needle | |
| CN107441594B (en) | Full-automatic painless injection device | |
| JPWO2013141351A1 (en) | Automatic injection device | |
| CN212214319U (en) | Syringe for anesthesia | |
| CN210384541U (en) | Department of neurology doctor uses autoinjector | |
| CN213284972U (en) | Syringe for endocrinology department | |
| CN210250783U (en) | Portable stable first-aid syringe | |
| CN210095745U (en) | Automatic needle inserting device | |
| CN208927278U (en) | Multi-point anesthetic injecting device | |
| CN212913540U (en) | Syringe for injecting specific dose to specific depth for ophthalmology | |
| CN110237358A (en) | A kind of high-precision insulin syringe and its application | |
| CN210697769U (en) | Puncture device for pediatric treatment | |
| CN215741018U (en) | Medical quantitative injector | |
| CN215653120U (en) | Adjustable liquid medicine continuous quantitative injector | |
| CN211705500U (en) | High-precision insulin syringe | |
| CN115813761A (en) | Puncture-proof blunt needle of syringe for extracting liquid medicine and use method thereof | |
| CN109224192A (en) | A kind of safety shield for single wing transfusion syringe | |
| CN108974410A (en) | A kind of syringe filling machine structure | |
| CN212880455U (en) | Implement for realizing preset medicine injection | |
| CN212214309U (en) | Quantitative injection device for intravenous liquid medicine in oncology department | |
| CN213191791U (en) | Insulin syringe with protection function | |
| CN212282488U (en) | Needle for anesthesia | |
| CN211132472U (en) | Anesthesia department uses anesthetic quantity detection device | |
| CN208405600U (en) | It is a kind of with the insulin injection device and syringe needle of shirking syringe needle mechanism | |
| CN211750265U (en) | Syringe for veterinarian |
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: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |