CN204484474U - A kind of aspirated-air type childbirth core device - Google Patents
A kind of aspirated-air type childbirth core device Download PDFInfo
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- CN204484474U CN204484474U CN201520084182.5U CN201520084182U CN204484474U CN 204484474 U CN204484474 U CN 204484474U CN 201520084182 U CN201520084182 U CN 201520084182U CN 204484474 U CN204484474 U CN 204484474U
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- negative pressure
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Abstract
A kind of aspirated-air type childbirth core device, be characterized in, aspirated-air type childbirth core device has one to give birth to core cover, childbirth core cover connects a suction nozzle, suction nozzle connects a negative pressure cavity, negative pressure cavity installs a vacuum meter, negative pressure cavity installs a vent valve, negative pressure cavity connects a cylinder barrel, between cylinder barrel and negative pressure cavity, a check valve is installed, in cylinder barrel, a piston is installed, piston installs a scavenging air valve, piston installs a piston rod, cylinder barrel installs cylinder head, cylinder head has steam vent and rod aperture, piston rod is through rod aperture, at piston rod end mounting handle, between cylinder barrel inside cylinder lid and piston, spring is installed.The beneficial effects of the utility model are, this utility model is used in cataract eye surgery, take out cataract stone, adopt negative pressure to hold pathological changes crystal nuclear by a childbirth core cover, pathological changes crystal nuclear can be taken out quickly and easily, and damage can not be caused to other tissue of ophthalmic.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, and a kind of aspirated-air type especially for taking out pathological changes crystal nuclear in cataract eye surgery gives birth to core device.
Background technology
In cataract eye surgery, apply phacoemulsification, but in the area that some conditions do not possess or when the hardenability of crystal nuclear is heavier, still adopt traditional cataractopiesis, in operation process, taking out pathological changes crystal nuclear is committed step, conventional method is, at crystal nuclear and front, appropriate adhered elastomer is injected between Lens capsular, make crystal nuclear and front, Lens capsular is separated, then snare is adopted to insert between crystal nuclear and Lens capsular along otch, the hand-held crochet hook of another enters anterior chamber, catching on crystal nuclear coordinates snare that crystal nuclear is pulled out from the tunnel cut.Taking out crystal nuclear by this kind of method needs two handss precisely to coordinate, otherwise can cause damage to other tissue of ophthalmic, and if any accidentally damaging Lens capsular during insertion snare, it is even blind that postoperative meeting causes patient's vision to decline.
Summary of the invention
For solving the above problems, this utility model provides a kind of aspirated-air type to give birth to core device, and this aspirated-air type childbirth core device can take out pathological changes crystal nuclear quickly and easily, and can not cause damage to other tissue of ophthalmic.
The technical scheme that this utility model technical solution problem adopts is: invent a kind of aspirated-air type childbirth core device, be characterized in, aspirated-air type childbirth core device has one to give birth to core cover, childbirth core cover connects a suction nozzle, suction nozzle connects a negative pressure cavity, negative pressure cavity installs a vacuum meter, negative pressure cavity installs a vent valve, negative pressure cavity connects by a cylinder barrel, between cylinder barrel and negative pressure cavity, a check valve is installed, in cylinder barrel, a piston is installed, piston installs a scavenging air valve, piston installs a piston rod, cylinder barrel installs cylinder head, cylinder head has steam vent and rod aperture, piston rod is through rod aperture, at piston rod end mounting handle, between cylinder barrel inside cylinder lid and piston, spring is installed.
The beneficial effects of the utility model are, this utility model is used in cataract eye surgery, take out cataract stone, adopt negative pressure to hold pathological changes crystal nuclear by a childbirth core cover, pathological changes crystal nuclear can be taken out quickly and easily, and damage can not be caused to other tissue of ophthalmic.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Accompanying drawing 1 is the main pseudosection of the present embodiment, and accompanying drawing 2 is top views of the present embodiment.
1 childbirth core cover in figure, 2 suction nozzles, 3 vent valves, 4 negative pressure cavities, 5 check valves, 6 vacuum meters, 7 sealing rings, 8 pistons, 9 scavenging air valves, 10 piston rods, 11 springs, 12 cylinder barrels, 13 cylinder head, 14 handles.
Detailed description of the invention
As shown in Figures 1 and 2, childbirth core cover 1 connects suction nozzle 2, and suction nozzle 2 connects negative pressure cavity 4, negative pressure cavity 4 is installed vent valve 3 and vacuometer 6, negative pressure cavity 4 connects presses cylinder barrel 12, check valve 5 is installed between cylinder barrel 12 and negative pressure cavity 4, in cylinder barrel 12, piston 8 is installed, piston 8 is installed sealing ring 7, piston rod 10 and scavenging air valve 9, mounting spring 11 in cylinder barrel 12, cylinder head 13 is installed in cylinder barrel 12 end, cylinder head 13 has steam vent and rod aperture, piston rod 10 end mounting handle 14.
Cataractopiesis with conventional during operation is identical, first conventional sterilization is carried out, otch, at crystal nuclear and front, appropriate adhered elastomer is injected between Lens capsular, make crystal nuclear and front, Lens capsular is separated, then the childbirth core cover 1 of the present embodiment is inserted otch, cover pathological changes crystal nuclear, a hand-held firmly cylinder barrel 12, another pulls fixed handle 14, Compress Spring 11 is moved after pulling piston rod 10 by piston rod 10, under the effect of sealing ring 7, cylinder barrel 12 front portion produces negative pressure, the air at cylinder barrel 12 rear portion can enter air by the steam vent in cylinder head 13, it is anterior that air in negative pressure cavity 4 enters cylinder barrel 12 by check valve 5, also negative pressure is produced in negative pressure cavity 4, negative pressure cavity 4 makes childbirth core cover 1 produce negative pressure by suction nozzle 2, pathological changes crystal nuclear holds by childbirth core cover 1, vacuum meter 6 can show the vacuum in negative pressure cavity 4 at any time, when the vacuum in negative pressure cavity 4 does not reach requirement, can release handle 14, it is anterior that piston 8 can be pushed to cylinder barrel 12 by spring 11, scavenging air valve 9 is also a check valve, the air of cylinder barrel 12 front portion enters cylinder barrel 12 rear portion by scavenging air valve 9, and then pull handle 14, until when the vacuum in negative pressure cavity 4 reaches requirement, pathological changes crystal nuclear sucks by 1, childbirth core cover, now, pathological changes crystal nuclear is taken out from otch by childbirth core cover 1 by hand-held cylinder barrel 12.Can, by the miniature lever pull-up on vent valve 3, make extraneous air enter negative pressure cavity 4 after taking-up, make to reach atmospheric pressure in negative pressure cavity 4, suction nozzle 2 and childbirth core cover 1, pathological changes crystal nuclear just can be separated with childbirth core cover 1, then carries out the follow-up work of performing the operation.
Claims (1)
1. an aspirated-air type childbirth core device, it is characterized in that: aspirated-air type childbirth core device has one to give birth to core cover, described childbirth core cover connects a suction nozzle, described suction nozzle connects a negative pressure cavity, described negative pressure cavity installs a vacuum meter, described negative pressure cavity installs a vent valve, described negative pressure cavity connects a cylinder barrel, between described cylinder barrel and described negative pressure cavity, a check valve is installed, in described cylinder barrel, a piston is installed, described piston installs a scavenging air valve, described piston installs a piston rod, described cylinder barrel installs cylinder head, described cylinder head has steam vent and rod aperture, described piston rod is through described rod aperture, at described piston rod end mounting handle, between cylinder head described in described cylinder barrel and described piston, spring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084182.5U CN204484474U (en) | 2015-02-01 | 2015-02-01 | A kind of aspirated-air type childbirth core device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084182.5U CN204484474U (en) | 2015-02-01 | 2015-02-01 | A kind of aspirated-air type childbirth core device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484474U true CN204484474U (en) | 2015-07-22 |
Family
ID=53563773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520084182.5U Expired - Fee Related CN204484474U (en) | 2015-02-01 | 2015-02-01 | A kind of aspirated-air type childbirth core device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204484474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105287097A (en) * | 2015-10-29 | 2016-02-03 | 遂宁市中心医院 | Silicone oil extracting device for ophthalmology department |
-
2015
- 2015-02-01 CN CN201520084182.5U patent/CN204484474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105287097A (en) * | 2015-10-29 | 2016-02-03 | 遂宁市中心医院 | Silicone oil extracting device for ophthalmology department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Likun Inventor after: Zhang Tianzi Inventor before: Zhang Tianzi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG TIANZI TO: HAN LIKUN ZHANG TIANZI |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160201 |