CN204484475U - A kind of syringe for operation in eye - Google Patents
A kind of syringe for operation in eye Download PDFInfo
- Publication number
- CN204484475U CN204484475U CN201520139714.0U CN201520139714U CN204484475U CN 204484475 U CN204484475 U CN 204484475U CN 201520139714 U CN201520139714 U CN 201520139714U CN 204484475 U CN204484475 U CN 204484475U
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- Prior art keywords
- injection
- fluid injection
- piston
- chamber
- gear
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Abstract
A kind of syringe for operation in eye, comprise injection tube, injection needle, pumping piston and fluid injection piston, be provided with longitudinal baffle in described injection tube, injection tube inner chamber is divided into drawing liquid chamber and fluid injection chamber by described longitudinal baffle.Pumping piston is located at drawing liquid intracavity, and pumping piston can slide in the sealing of drawing liquid intracavity; Fluid injection piston is located at fluid injection intracavity, and fluid injection piston can slide in the sealing of fluid injection intracavity.The lower end of injection tube is located at by described injection needle, is provided with suction socket and liquid injection hole in injection needle, and suction socket is connected with drawing liquid chamber, and liquid injection hole is connected with fluid injection chamber.Longitudinal baffle is provided with gear grooved, is provided with rotatable gear in described gear grooved, pumping piston and fluid injection piston are provided with tooth bar, and described rack and pinion is meshed.This utility model structure is simple, easy to operate, and the suction hematocele in anterior chamber, empyema and injection medicinal liquid are carried out simultaneously, thus prevents eyeball to take out and flatly cause unexpected injury, improves the success rate of performing the operation.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of syringe for operation in eye.
Background technology
The ocular tissue of human body is very tender and lovely, and thus for ophthalmic patient, to do the requirement of intraocular surgery also higher, and such as, in extracapsular cataract extraction, anterior chamber's accumulated snow pus and vitreous body, accumulated snow empyema changes liquid art etc.The inside eye suction focus that original single function syringe is single is easy to each tissue in harmed eye, eyeball can be taken out flat time serious, and solely inwardly eye liquid medicine injection time also can be too little because of eyeball volume, pressure slightly uncle directly affects surgical effect, produces complication or sequela.
Utility model content
For above-mentioned problems of the prior art, suction hematocele, empyema and injection medicinal liquid that this utility model aims to provide in a kind of anterior chamber of making carry out simultaneously, thus prevent from eyeball being taken out the flat syringe for operation in eye causing unexpected injury.
To achieve these goals, this utility model takes following technical scheme:
A kind of syringe for operation in eye, comprise injection tube, injection needle, pumping piston and fluid injection piston, be provided with longitudinal baffle in described injection tube, injection tube inner chamber is divided into drawing liquid chamber and fluid injection chamber by described longitudinal baffle, and the cross section in described drawing liquid chamber and fluid injection chamber is semicircle.
Described pumping piston is located at drawing liquid intracavity, and the lower end of pumping piston is provided with stopper one, and shape, the size of described stopper one match with drawing liquid chamber, and pumping piston can slide in the sealing of drawing liquid intracavity;
Described fluid injection piston is located at fluid injection intracavity, and the lower end of fluid injection piston is provided with stopper two, and shape, the size of described stopper two match with fluid injection chamber, and fluid injection piston can slide in the sealing of fluid injection intracavity;
The lower end of injection tube is located at by described injection needle, is provided with suction socket and liquid injection hole in injection needle, and described suction socket is connected with drawing liquid chamber, and described liquid injection hole is connected with fluid injection chamber.
Described longitudinal baffle is provided with gear grooved, is provided with gear in described gear grooved, described gear being rotatable, described pumping piston and fluid injection piston are provided with tooth bar, and described rack and pinion is meshed.The rotation of gear can drive pumping piston and fluid injection piston to move up and down.
Further, described gear grooved is positioned at the top of longitudinal baffle.
Further, described gear is provided with gear shaft holes, described injection tube outer wall is provided with boss, described boss is provided with axis hole, and described axis hole is connected with gear grooved, is provided with rotating shaft in axis hole, described rotating shaft outer end is provided with knob, described knob is positioned at outside boss, and rotating shaft the inner is located in gear shaft holes, and rotating shaft can rotate by driven gear.
Further, described knob is provided with rotation arrows.
Further, the cross section in described drawing liquid chamber and fluid injection chamber is semicircle.
Further, the upper end of described pumping piston and fluid injection piston is provided with handle.
When operated eye is to intraocular injection medicine, rotate counterclockwise gear, gear then drives pumping piston to move up to carry out suction hyphema and empyema enters drawing liquid chamber, and gear driven fluid injection piston moves down and is injected in anterior chamber by the medicinal liquid of fluid injection intracavity simultaneously.
The beneficial effects of the utility model are: structure is simple, easy to operate, and the suction hematocele in anterior chamber, empyema and injection medicinal liquid are carried out simultaneously, thus prevent eyeball to take out and flatly cause unexpected injury, improve the success rate of performing the operation.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 be pinion rotation make pumping piston move up state time this utility model structural representation;
Fig. 3 is pumping piston structural representation;
Fig. 4 is gear structure schematic diagram;
Fig. 5 is injection tube perspective view;
Fig. 6 is injection tube end view;
Fig. 7 is pivot structure schematic diagram;
Fig. 8 is A portion enlarged drawing in Fig. 1.
Reference numeral: 1-injection tube, 2-injection needle, 3-pumping piston, 4-fluid injection piston, 5-handle, 6-tooth bar, 7-boss, 8-longitudinal baffle, 9-knob, 10-suction socket, 11-liquid injection hole, 12-gear, 13-gear shaft holes, 14-gear grooved, 15-axis hole, 16-semicircle plug, 17-rotating shaft, 18-drawing liquid chamber, 19-fluid injection chamber, 20-rotation arrows.
Detailed description of the invention
For the ease of understanding, below in conjunction with accompanying drawing, by embodiment, technical solutions of the utility model are further described in detail:
As Figure 1-Figure 8, a kind of syringe for operation in eye, comprises injection tube 1, injection needle 2, pumping piston 3, fluid injection piston 4, gear 12 and rotating shaft 17.
Be provided with longitudinal baffle 8 in injection tube 1, the inner chamber of injection tube 1 is divided into drawing liquid chamber 18 and fluid injection chamber 19 by longitudinal baffle 8.The cross section in drawing liquid chamber 18 and fluid injection chamber 19 is semicircle.
The lower end of pumping piston 3 and fluid injection piston 4 is provided with semicircular semicircle plug 16, and shape, the size of semicircle plug 16 match with drawing liquid chamber 18 and fluid injection chamber 19.The upper end of pumping piston 3 and fluid injection piston 4 is provided with handle 5.
Pumping piston 3 is located in drawing liquid chamber 18, and can seal slip in drawing liquid chamber 18.Fluid injection piston 4 is located in fluid injection chamber 19, and can seal slip in fluid injection chamber 19.
Injection needle 2 is arranged on the lower end of injection tube 1; Suction socket 10 and liquid injection hole 11 is provided with in injection needle 2.Suction socket 10 is connected with drawing liquid chamber 18; Liquid injection hole 11 is connected with fluid injection chamber 19.
Longitudinal baffle 8 top is provided with gear grooved 14; Be provided with gear 12 in gear grooved 14, gear 12 be provided with gear shaft holes 13; Injection tube 1 outer wall is provided with boss 7, boss 7 is provided with axis hole 15, axis hole 15 is connected with gear grooved 14.Rotating shaft 17 is provided with in axis hole 15; Rotating shaft 17 outer end is provided with knob 9, and knob 9 is positioned at outside boss 7, knob 9 is provided with rotation arrows 20, and rotating shaft 17 the inner is located in gear shaft holes 13, and rotating shaft 17 can rotate by driven gear 12.
Pumping piston 3 and fluid injection piston 4 are provided with tooth bar 6, and tooth bar 6 is meshed with gear 12.The rotation of gear 12 can drive pumping piston 3 and fluid injection piston 4 to move up and down.
When operated eye is to intraocular injection medicine, turn knob 9 counterclockwise, knob 9 is rotated by rotating shaft 17 driven gear 12, gear 12 drives pumping piston 3 to move up to carry out suction hyphema and empyema enters drawing liquid chamber 18, simultaneously gear 12 drives fluid injection piston 4 to move down to be injected in anterior chamber by the medicinal liquid in fluid injection chamber 19, suction hematocele in anterior chamber, empyema and injection medicinal liquid are carried out simultaneously, prevents from damaging part tissue of eye, prevent eyeball to take out and flatly cause unexpected injury.
Above-described embodiment just illustrating or explaining technical solutions of the utility model, and the restriction that should not be construed as technical solutions of the utility model, obviously, those skilled in the art can carry out various modifications and variations to this utility model and not depart from spirit and scope of the present utility model.If these amendments and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model also comprises these amendment and modification.
Claims (6)
1. a syringe for operation in eye, comprises injection tube, injection needle, pumping piston and fluid injection piston, is provided with longitudinal baffle in described injection tube, and injection tube inner chamber is divided into drawing liquid chamber and fluid injection chamber by described longitudinal baffle;
Described pumping piston is located at drawing liquid intracavity, and the lower end of pumping piston is provided with stopper one, and shape, the size of described stopper one match with drawing liquid chamber, and pumping piston can slide in the sealing of drawing liquid intracavity;
Described fluid injection piston is located at fluid injection intracavity, and the lower end of fluid injection piston is provided with stopper two, and shape, the size of described stopper two match with fluid injection chamber, and fluid injection piston can slide in the sealing of fluid injection intracavity;
The lower end of injection tube is located at by described injection needle, is provided with suction socket and liquid injection hole in injection needle, and described suction socket is connected with drawing liquid chamber, and described liquid injection hole is connected with fluid injection chamber;
Described longitudinal baffle is provided with gear grooved, be provided with gear in described gear grooved, described gear being rotatable, described pumping piston and fluid injection piston are provided with tooth bar, described rack and pinion is meshed, and the rotation of gear can drive pumping piston and fluid injection piston to move up and down.
2. syringe for operation in eye according to claim 1, is characterized in that, described gear grooved is positioned at the top of longitudinal baffle.
3. syringe for operation in eye according to claim 2, it is characterized in that, described gear is provided with gear shaft holes, described injection tube outer wall is provided with boss, described boss is provided with axis hole, described axis hole is connected with gear grooved, be provided with rotating shaft in axis hole, described rotating shaft outer end is provided with knob, and described knob is positioned at outside boss, rotating shaft the inner is located in gear shaft holes, and rotating shaft can rotate by driven gear.
4. syringe for operation in eye according to claim 3, is characterized in that, described knob is provided with rotation arrows.
5. syringe for operation in eye according to claim 4, is characterized in that, the cross section in described drawing liquid chamber and fluid injection chamber is semicircle.
6. the syringe for operation in eye according to any one of claim 1-5, is characterized in that, the upper end of described pumping piston and fluid injection piston is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139714.0U CN204484475U (en) | 2015-03-09 | 2015-03-09 | A kind of syringe for operation in eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139714.0U CN204484475U (en) | 2015-03-09 | 2015-03-09 | A kind of syringe for operation in eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484475U true CN204484475U (en) | 2015-07-22 |
Family
ID=53563774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520139714.0U Expired - Fee Related CN204484475U (en) | 2015-03-09 | 2015-03-09 | A kind of syringe for operation in eye |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204484475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112006841A (en) * | 2020-09-07 | 2020-12-01 | 河南科技大学第一附属医院 | Self-draining type heavy water injection device for ophthalmic surgery |
-
2015
- 2015-03-09 CN CN201520139714.0U patent/CN204484475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112006841A (en) * | 2020-09-07 | 2020-12-01 | 河南科技大学第一附属医院 | Self-draining type heavy water injection device for ophthalmic surgery |
| CN112006841B (en) * | 2020-09-07 | 2022-04-08 | 河南科技大学第一附属医院 | Self-draining type heavy water injection device for ophthalmic surgery |
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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: 20150722 Termination date: 20160309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |