CN101317799A - Vitreous body cutting machine for ophthalmology - Google Patents
Vitreous body cutting machine for ophthalmology Download PDFInfo
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- CN101317799A CN101317799A CNA2007100233105A CN200710023310A CN101317799A CN 101317799 A CN101317799 A CN 101317799A CN A2007100233105 A CNA2007100233105 A CN A2007100233105A CN 200710023310 A CN200710023310 A CN 200710023310A CN 101317799 A CN101317799 A CN 101317799A
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Abstract
The invention discloses an ophthalmological vitreous cutter. External compressed air or nitrogen adopted by the cutter goes through a pressure reducing valve (11) and a magnetic valve (12) sequentially. A gas source is divided into a negative pressure gas circuit, a pumping/liquor drainage gas circuit, an incision gas circuit and a scissor gas circuit by a flow divider. The cutter also comprises an air pump (71), an air storage tank (72) and a gas-liquid pressure relief output interface (73) which are sequentially connected to produce a positive air flow required by the exchange of gas and liquid. The ophthalmological vitreous cutter can meet all the strict requirements of a vitreous cutting operation and has low price, thus greatly lowering the cost of surgery. So the ophthalmological vitreous cutter can promote the popularization of the ophthalmological vitreous operation.
Description
Technical field
The invention belongs to a kind of armarium instrument, relate in particular to a kind of vitreous body cutting machine for ophthalmology.
Background technology
Vitreous body cutting machine for ophthalmology is a kind of instrument that is used to carry out the operation of ophthalmology vitreous body position.Can be used for vitreous body pathological changes tissue cutting, loosen, remove, stop blooding, keep the balance of intraocular pressure in the operation process, and provide operation required ophthalmic lighting source.
It is generally acknowledged, it is highly difficult carrying out operation at the vitreous body position of eyeball, thereby the function and the performance of relevant surgical unit had its specific requirement: 1. instrument can produce the malleation air-flow sequence that is used to promote to cut pipeline, according to the requirement of stereotomy formula in the operation, its frequency, pulse width, amplitude are controlled.2. instrument can produce the malleation air-flow that is used to promote the shears pipeline, and according to the requirement of lysis formula in the operation, the size of its malleation air-flow can be constant or sizable.3. instrument can produce and be used to aspirate the negative pressure that removes the ophthalmic pathological tissues, and according to the requirement of operation, the size of its negative pressure value is controlled and is stable.4. instrument can produce a stable positive pressure gas, is used for keeping operation process intraocular pressure balance and is used for gas-liquid exchange art formula.
Because above-mentioned multiple complicated requirement, vitreous body cutting machine for ophthalmology in the market mostly complex structure, cost an arm and a leg, this makes that patient's surgery cost is high, has limited popularizing of ophthalmology operation on vitreous.
Summary of the invention
The objective of the invention is: a kind of vitreous body cutting machine for ophthalmology is provided, can satisfy every strict demand of vitrectomy operation, and price is low, be fit to promote; Can significantly reduce surgery cost, to promote to popularize the ophthalmology operation on vitreous.
Technical scheme of the present invention is: a kind of vitreous body cutting machine for ophthalmology, it is characterized in that: this cutting machine adopts outside compressed air or nitrogen successively by air relief valve, electromagnetic valve, by the diverter unit source of the gas is divided into the negative pressure gas circuit, takes out/the discharge opeing gas circuit, cuts gas circuit and shears gas circuit four tunnel gas circuits
Described negative pressure gas circuit produces required negative pressure by electricity one gas proportioning valve, flow control valve, suction venturi pump, the suction electromagnetic valve that connects successively, and described suction electromagnetic valve connects liquid storage box, first Valve for compressing tubular liner, discharge opeing box, second Valve for compressing tubular liner, the outer liquid-collection bag of machine successively;
Described taking out/discharge opeing gas circuit forms and takes out/the required negative-pressure air-flow sequence of discharge opeing by pump drainage air relief valve, pump drainage electromagnetic valve, the pump drainage venturi pump that connects successively, and described pump drainage venturi pump connects the discharge opeing box;
Described cutting gas circuit forms cutting malleation air-flow sequence by the cutting electromagnetic valve, and described cutting electromagnetic valve connects pneumatic cutting/suction handle, the 3rd Valve for compressing tubular liner, liquid storage box successively, described negative pressure gas circuit and the collaborative work of cutting gas circuit;
Described shears gas circuit forms malleation air-flow sequence by shears flow control valve, the choke valve that connects successively, and described choke valve connects the pneumatic scissors handle.
Below technique scheme is further explained:
1. described cutting machine also includes by the air pump that connects successively, air accumulator, gas-liquid exchange pressure output interface, to produce the malleation air-flow that the gas-liquid clearing house needs.
2. described diverter unit comprises first diverter, second diverter, air relief valve, the 3rd diverter that connects successively, described first diverter is between electromagnetic valve and the electricity-gas proportioning valve, described second diverter connects the pump drainage air relief valve, and described the 3rd diverter connects shears flow control valve, cutting electromagnetic valve respectively.
Advantage of the present invention is:
1. vitreous body cutting machine for ophthalmology of the present invention can satisfy every strict demand of vitrectomy operation, and price is low, is fit to promote.
2. use vitreous body cutting machine for ophthalmology of the present invention, can significantly reduce surgery cost, to promote to popularize the ophthalmology operation on vitreous.
3. vitreous body cutting machine for ophthalmology of the present invention reaches as high as 2500 times/minute cutting speed, when having reduced cutting to the full extent to the tractive of peripheral normal structure, the operation at suitable position, nearly optical fundus.
4. vitreous body cutting machine for ophthalmology of the present invention, air-flow/liquid stream control system has adopted the real-time gas of multisensor-electric Closed loop Control, and suction is produced by venturi pump with negative pressure, has fast negative pressure response speed and high negative regulation.The force value of negative pressure can be provided with, and can carry out real-time linear change control to negative pressure by Foot-controlled switch, can control the size of aspiration in the operation well.The frequency of cutting, the required malleation air-flow sequence of shears, pulse width, amplitude can meticulous controls, to satisfy different cutting quantities in the operation process and to cut off the requirement of mode.
5. vitreous body cutting machine for ophthalmology of the present invention, the required normal pressure of gas/liquid function of exchange is produced by the special-purpose air pump in the machine, has adopted the real-time gas of pick off-electric Closed loop Control, is meticulous controlled.Can keep the intraocular pressure in the operation process well and finish the exchange of ophthalmic gas/liquid.
6. vitreous body cutting machine for ophthalmology of the present invention adopts Windows operating system, touch screen human-computer interface, embedded scm technology.Embedded technology (based on windows) and distributed singlechip technology have been adopted with master control system with complete machine.Professional pick off, Pneumatic component, venturi pump and unique signal sampling modulate circuit have been adopted, align the collaborative accurately control of negative pressure gas-liquid flow pipe-line system, obtained malleation air-flow sequence (frequency, pulsewidth, amplitude) and steady, the controlled negative pressure that is used to aspirate that meticulous being used to promotes cutting device or shears apparatus.Contactless liquid level control and pneumatic type pumping equipment.The isolation type high frequency circuit produces the required high-frequency electrical energy of bipolar coagulation apparatus.Can keep the constant brightness regulating apparatus of colour temperature.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is a gas circuit structure sketch map of the present invention;
Fig. 2 is an electric theory diagram of the present invention;
Fig. 3 is a circuit control sketch map of the present invention;
Fig. 4 is a workflow diagram of the present invention.
Wherein: 11 air relief valve; 12 electromagnetic valves; 21 electricity-gas proportioning valve; 22 flow control valves; 23 suction venturi pumps; 24 suction electromagnetic valves; 31 pump drainage air relief valve; 32 pump drainage electromagnetic valves; 33 pump drainage venturi pumps; 41 cutting electromagnetic valves; 42 pneumatic cutting/suction handles; 51 shears flow control valves; 52 choke valves; 53 pneumatic scissors hands handles; 61 liquid storage boxes; 62 first Valve for compressing tubular liner; 63 discharge opeing boxes; 64 second Valve for compressing tubular liner; The outer liquid-collection bag of 65 machines; 66 the 3rd Valve for compressing tubular liner; 71 air pumps; 72 air accumulators; 73 gas-liquids exchange pressure output interface; 81 first diverters; 82 second diverters; 83 air relief valve; 84 the 3rd diverters.
The specific embodiment
Embodiment: as shown in Figure 1, a kind of vitreous body cutting machine for ophthalmology, this cutting machine adopts outside compressed air or nitrogen successively by air relief valve 11, electromagnetic valve 12, by the diverter unit source of the gas is divided into the negative pressure gas circuit, takes out/the discharge opeing gas circuit, cuts gas circuit and shears gas circuit four tunnel gas circuits.
The negative pressure gas circuit produces required negative pressure by electricity-gas proportioning valve 21, flow control valve 22, suction venturi pump 23, the suction electromagnetic valve 24 that connects successively.Suction electromagnetic valve 24 connects liquid storage box 61, first Valve for compressing tubular liner 62, discharge opeing box 63, second Valve for compressing tubular liner 64, the outer liquid-collection bag 65 of machine successively.
Take out/the discharge opeing gas circuit forms and takes out/the required negative-pressure air-flow sequence of discharge opeing by pump drainage air relief valve 31, pump drainage electromagnetic valve 32, the pump drainage venturi pump 33 that connects successively.Pump drainage venturi pump 33 connects discharge opeing box 63;
The cutting gas circuit forms cutting malleation air-flow sequence by cutting electromagnetic valve 41.Cutting electromagnetic valve 41 connects pneumatic cutting/suction handle 42, the 3rd Valve for compressing tubular liner 66, liquid storage box 61 successively.
During cutting, negative pressure gas circuit and the collaborative work of cutting gas circuit.
The shears gas circuit forms malleation air-flow sequence by shears flow control valve 51, the choke valve 52 that connects successively, and choke valve 52 connects pneumatic scissors handle 53.
This vitreous body cutting machine for ophthalmology also includes by the air pump 71 that connects successively, air accumulator 72, gas-liquid exchange pressure output interface 73, to produce the malleation air-flow that the gas-liquid clearing house needs.
The diverter unit comprises first diverter 81, second diverter 82, air relief valve 83, the 3rd diverter 84 that connects successively.First diverter 81 is between electromagnetic valve 12 and the electricity-gas proportioning valve 21; Second diverter 82 connects pump drainage air relief valve 31; The 3rd diverter 84 connects shears flow control valve 51, cutting electromagnetic valve 41 respectively.
As Fig. 2, Fig. 3, shown in Figure 4, by touch screen human-computer interface running parameter is set, be sent to each single-chip microcomputer by built-in industrial control machine, under the Collaborative Control of Foot-controlled switch different conditions, by Single-chip Controlling function corresponding circuit module, drive corresponding pneumatic element, obtain required malleation or negative-pressure air-flow sequence, perhaps start high-frequency electrical energy output.Simultaneously, under the control of the real-time gas of a plurality of pick offs-electric closed loop, the actual working state of machine sampled in real time control to single-chip microcomputer, single-chip microcomputer is sent to touch screen human-computer interface in real time with the actual working state of machine simultaneously.
The liquid level of contactless level detection circuit monitoring operation liquid storage box 61 when preposition, will stop to cut vacuuming operation, and liquid is delivered to discharge opeing box 63, when the liquid level of liquid storage box 61 drops to certain position, promptly recover the cutting vacuuming operation automatically.
Vitreous body cutting machine for ophthalmology of the present invention, air-flow/liquid stream control system has adopted the real-time gas of multisensor-electric Closed loop Control, and suction is produced by venturi pump with negative pressure, has fast negative pressure response speed and high negative regulation.The force value of negative pressure can be provided with, and can carry out real-time linear change control to negative pressure by Foot-controlled switch, can control the size of aspiration in the operation well.The frequency of cutting, the required malleation air-flow sequence of shears, pulse width, amplitude can meticulous controls, to satisfy different cutting quantities in the operation process and to cut off the requirement of mode.
Vitreous body cutting machine for ophthalmology of the present invention, the required normal pressure of gas/liquid function of exchange is produced by the special-purpose air pump in the machine, has adopted the real-time gas of pick off-electric Closed loop Control, is meticulous controlled.Can keep the intraocular pressure in the operation process well and finish the exchange of ophthalmic gas/liquid.
Vitreous body cutting machine for ophthalmology of the present invention has adopted the isolation type high frequency circuit to produce the required high-frequency electrical energy of bipolar coagulation apparatus, is used for the ophthalmic hemostasis, satisfies the relevant regulations of GB9706.1 and GB9706.4.Adopt contactless level detection system, satisfied the relevant regulations of GB9706.1.Adopted the anti-type global function Foot-controlled switch that soaks.
The light source that is used for the ophthalmic illumination adopts electronic diaphragm formula dimming mechanism, and it is constant to keep colour temperature when brightness flop.
This vitreous body cutting machine for ophthalmology can be used with the operating theater instruments of standard in the world.High-speed pneumatic cutting suction handle, pneumatic type scissors handle, bi-terminal handle and ophthalmic optical fibers are adopted in standard configuration.
Certainly, vitreous body cutting machine for ophthalmology of the present invention also can have multiple conversion and remodeling, is not limited to the concrete structure of above-mentioned embodiment.In a word, protection scope of the present invention should comprise those conspicuous to those skilled in the art conversion or substitute and remodeling.
Claims (3)
1. vitreous body cutting machine for ophthalmology, it is characterized in that: this cutting machine adopts outside compressed air or nitrogen successively by air relief valve (11), electromagnetic valve (12), by the diverter unit source of the gas is divided into the negative pressure gas circuit, takes out/the discharge opeing gas circuit, cuts gas circuit and shears gas circuit four tunnel gas circuits
Described negative pressure gas circuit produces required negative pressure by electricity one gas proportioning valve (21), flow control valve (22), suction venturi pump (23), the suction electromagnetic valve (24) that connects successively, and described suction electromagnetic valve (24) connects liquid storage box (61), first Valve for compressing tubular liner (62), discharge opeing box (63), second Valve for compressing tubular liner (64), the outer liquid-collection bag (65) of machine successively;
Described taking out/discharge opeing gas circuit forms and takes out/the required negative-pressure air-flow sequence of discharge opeing by pump drainage air relief valve (31), pump drainage electromagnetic valve (32), the pump drainage venturi pump (33) that connects successively, and described pump drainage venturi pump (33) connects the discharge opeing box;
Described cutting gas circuit forms cutting malleation air-flow sequence by cutting electromagnetic valve (41), described cutting electromagnetic valve (41) connects pneumatic cutting/suction handle (42), the 3rd Valve for compressing tubular liner (66), liquid storage box (61) successively, described negative pressure gas circuit and the collaborative work of cutting gas circuit;
Described shears gas circuit forms malleation air-flow sequence by shears flow control valve (51), the choke valve (52) that connects successively, and described choke valve (52) connects pneumatic scissors handle (53).
2. vitreous body cutting machine for ophthalmology according to claim 1, it is characterized in that: described cutting machine also includes by the air pump (71) that connects successively, air accumulator (72), gas-liquid exchange pressure output interface (73), to produce the malleation air-flow that the gas-liquid clearing house needs.
3. vitreous body cutting machine for ophthalmology according to claim 1 and 2, it is characterized in that: described diverter unit comprises first diverter (81), second diverter (82), air relief valve (83), the 3rd diverter (84) that connects successively, described first diverter (81) is between electromagnetic valve (12) and the electricity-gas proportioning valve (21), described second diverter (82) connects pump drainage air relief valve (31), and described the 3rd diverter (84) connects shears flow control valve (51), cutting electromagnetic valve (41) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100233105A CN101317799B (en) | 2007-06-05 | 2007-06-05 | Vitreous body cutting machine for ophthalmology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100233105A CN101317799B (en) | 2007-06-05 | 2007-06-05 | Vitreous body cutting machine for ophthalmology |
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| Publication Number | Publication Date |
|---|---|
| CN101317799A true CN101317799A (en) | 2008-12-10 |
| CN101317799B CN101317799B (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100233105A Active CN101317799B (en) | 2007-06-05 | 2007-06-05 | Vitreous body cutting machine for ophthalmology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107438454A (en) * | 2015-04-13 | 2017-12-05 | 诺华股份有限公司 | High speed pneumatic valve |
| CN112558521A (en) * | 2020-12-08 | 2021-03-26 | 北京信息科技大学 | Air passage control method of heart fixator based on ARM embedded platform |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790816A (en) * | 1985-09-26 | 1988-12-13 | Allon Laboratories, Inc. | Surgical cassette proximity sensing and latching apparatus |
| US5417246A (en) * | 1989-10-27 | 1995-05-23 | American Cyanamid Company | Pneumatic controls for ophthalmic surgical system |
| CN2320228Y (en) * | 1997-11-17 | 1999-05-26 | 高亚林 | Hand anterior chamber injection aspirator |
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2007
- 2007-06-05 CN CN2007100233105A patent/CN101317799B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107438454A (en) * | 2015-04-13 | 2017-12-05 | 诺华股份有限公司 | High speed pneumatic valve |
| CN107438454B (en) * | 2015-04-13 | 2020-07-31 | 爱尔康公司 | High-speed pneumatic valve |
| CN112558521A (en) * | 2020-12-08 | 2021-03-26 | 北京信息科技大学 | Air passage control method of heart fixator based on ARM embedded platform |
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| Publication number | Publication date |
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| CN101317799B (en) | 2011-08-24 |
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