CN101732792A - Medical syringe with vitreous cavity - Google Patents
Medical syringe with vitreous cavity Download PDFInfo
- Publication number
- CN101732792A CN101732792A CN200910310523A CN200910310523A CN101732792A CN 101732792 A CN101732792 A CN 101732792A CN 200910310523 A CN200910310523 A CN 200910310523A CN 200910310523 A CN200910310523 A CN 200910310523A CN 101732792 A CN101732792 A CN 101732792A
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- CN
- China
- Prior art keywords
- medical syringe
- vitreous cavity
- vitreous
- tube
- injection needle
- 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.)
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Abstract
The invention relates to a medical syringe with a vitreous cavity, which is provided with a three-way tube, two built-in one-way valves and two 1 ml syringes. The single tube end of the three-way tube is connected with a 30G syringe needle; the dual tube ends are respectively connected with two 1 ml syringes through the built-in one-way valves; and the control flow directions of the two one-way valves are respectively a direction opposite to the three-way tube and the direction entering the three-way tube. Therefore, a medicinal liquid can be injected directly through the other syringe without withdrawal of a liquid drawing needle tube. The medical syringe with the vitreous cavity has the characteristics of simple structure, convenient operation, low cost, good safety performance and capability of avoiding cross-infection effectively.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of medical syringe with vitreous cavity.
Background technology
Vitreous chamber medicine injection is the conventional means of ophthalmic diseases such as clinical ophthalmology treatment endophthalmitis, retinopathy, usually needs to extract out the part vitreous body before the injection and tests or reduce intraocular pressure.Clinically, the general ordinary syringe that adopts of vitreous chamber medicine injection is finished, and need extract the drawing liquid needle tubing behind the extraction vitreous body and connect another injection needle tubing, but such operation had both increased the chance of cross infection, nor convenient, also bring air into ophthalmic easily.At present, also do not have on the market to extract the special syringe that the drawing liquid needle tubing just can directly inject medicine.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple structure, cost is low, easy to operate and security performance is good medical syringe with vitreous cavity are provided.
The technical scheme that the present invention solves above-mentioned existing issue employing is: a kind of medical syringe with vitreous cavity is characterized in that: it is provided with tee T and two built-in check valves, two 1ml syringes.Tee T single tube end connects the 30G injection needle, and double pipe end connects two 1ml injection needles respectively, and the control flow direction of two check valves is respectively dorsad and enters threeway.
The present invention since adopt tee T respectively by two various flows to check valve connect two syringes, by check valve control take out beam to, can under the situation of not extracting the drawing liquid needle tubing, directly inject medicinal liquid by another syringe.Simple structure of the present invention, easy to operate, cost is low, and security performance is good, and can avoid cross infection effectively.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention: 1. 30G injection needle among the figure; 2. the built-in drawing liquid check valve of threeway; 3. the built-in injection check valve of threeway; 4., 5. 1ml injection needle.
The specific embodiment
The present invention is a kind of vitreous chamber syringe, and it comprises 1. 30G injection needle; 2. the built-in drawing liquid check valve of threeway; 3. the built-in injection check valve of threeway; 4., 5. injection needle.The 30G injection needle is exactly common skin-test needle, link to each other with the single tube end of tee T, double pipe end by built-in drawing liquid 2. reach injection 3. check valve respectively with injection needle 5., 4. link to each other.5., 4. be common 1ml injection needle, finish the notes of taking out of liquid by pull and propelling core bar piston.It is threeway dorsad that check valve control 2. flows to, and 5. continuous injection needle can only pass through pull piston sucking-off vitreous body; It is to enter threeway that check valve control 3. flows to, and 4. continuous injection needle can only inject the vitreous chamber medicinal liquid by advancing the core bar piston.
During clinical practice, 1. the 30G injection needle is connect tee T single tube end, 5. the 1ml injection needle connects the drawing liquid check valve end of threeway, and 4. the 1ml injection needle extracts the injection check valve end that connects threeway behind the medicinal liquid.The 30G injection needle is after scleral surface is thrust the vitreous chamber relevant position, and 5. first pull injection needle is extracted a little vitreous body out and detected or reduce intraocular pressure, directly the medicinal liquid of injection needle in is 4. injected vitreous body then.Simple structure of the present invention, easy to operate, cost is low, and security performance is good, and can avoid cross infection effectively.
Claims (5)
1. medical syringe with vitreous cavity, it is characterized in that: it is provided with tee T and two built-in check valves, two continuous 1ml syringes.Tee T single tube end connects the 30G injection needle, and double pipe end connects two 1ml injection needles respectively by built-in check valve.
2. medical syringe with vitreous cavity according to claim 1 is characterized in that: the single tube end internal diameter 1mm of tee T, long 9.8mm.
3. medical syringe with vitreous cavity according to claim 2 is characterized in that: two check valves lay respectively in the two-tube pipe of tee T, and its control flow direction is respectively dorsad and enters threeway.
4. medical syringe with vitreous cavity according to claim 3 is characterized in that: it is threeway dorsad that check valve control 5. flows to, and continuous injection needle is by pull piston sucking-off vitreous body.
5. medical syringe with vitreous cavity according to claim 3 is characterized in that: it is to enter threeway that check valve control 5. flows to, and continuous injection needle injects the vitreous chamber medicinal liquid by propelling piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310523A CN101732792A (en) | 2009-11-26 | 2009-11-26 | Medical syringe with vitreous cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310523A CN101732792A (en) | 2009-11-26 | 2009-11-26 | Medical syringe with vitreous cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101732792A true CN101732792A (en) | 2010-06-16 |
Family
ID=42457153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910310523A Pending CN101732792A (en) | 2009-11-26 | 2009-11-26 | Medical syringe with vitreous cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101732792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020086002A1 (en) * | 2018-10-26 | 2020-04-30 | Singapore Health Services Pte Ltd | Device and method for ophthalmic extraction and injection |
| CN113289149A (en) * | 2021-05-28 | 2021-08-24 | 鹰潭荣嘉集团医疗器械实业有限公司 | Medical syringe |
-
2009
- 2009-11-26 CN CN200910310523A patent/CN101732792A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020086002A1 (en) * | 2018-10-26 | 2020-04-30 | Singapore Health Services Pte Ltd | Device and method for ophthalmic extraction and injection |
| EP3870119A4 (en) * | 2018-10-26 | 2022-07-20 | Singapore Health Services Pte. Ltd. | Device and method for ophthalmic extraction and injection |
| CN113289149A (en) * | 2021-05-28 | 2021-08-24 | 鹰潭荣嘉集团医疗器械实业有限公司 | Medical syringe |
| CN113289149B (en) * | 2021-05-28 | 2022-08-19 | 鹰潭荣嘉集团医疗器械实业有限公司 | Medical syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |