CN103356328B - Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument - Google Patents
Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument Download PDFInfo
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- CN103356328B CN103356328B CN201310313716.2A CN201310313716A CN103356328B CN 103356328 B CN103356328 B CN 103356328B CN 201310313716 A CN201310313716 A CN 201310313716A CN 103356328 B CN103356328 B CN 103356328B
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Abstract
The invention provides a kind of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument, belong to negative-pressure suction pipeline systems technology field.The present invention includes: the pipeline of suction pipeline, hard liquid-collecting box, current limiter and connection negative pressure source with filtering net, the end of described suction pipeline is connected with the hard liquid-collecting box inlet with filtering net, liquid outlet with the hard liquid-collecting box of filtering net is connected with the pipeline being connected negative pressure source, and the pipeline of connection negative pressure source is connected with current limiter.The present invention is mainly used in alternative ultrasonic emulsification instrument negative pressure pump system, for ophthalmologic operation provides reliable and stable, and willing vacuum suction.The present invention has the function same with current cataract ultrasonic emulsification instrument negative pressure pump, safety and stability, willing vacuum suction can be provided for operation, relative to current ultrasonic emulsification instrument negative pressure pump system have structure simple, with low cost, be easy to the advantages such as maintenance, existing cataract ultrasonic emulsification instrument negative pressure pump can be substituted completely.
Description
Technical field
The present invention relates to a kind of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument, belong to negative-pressure suction pipeline technical field.
Background technology
Phacoemulsification art treats cataractous chief surgical mode at present, and cataract ultrasonic emulsification instrument is the critical operation equipment carrying out ultrasonic emulsification for cataract.Negative pressure pump is the important component part of cataract ultrasonic emulsification instrument, accounts for about 50% of cataract ultrasonic emulsification instrument cost.Negative pressure pump primary responsibility provides stable, lasting, willing vacuum suction for performing the operation in the middle of operation.So the quality of negative pressure pump and price directly determine quality and the price of cataract ultrasonic emulsification instrument.And then also affected indirectly the quality and cost of each routine cataract operation.
Existing cataract ultrasonic emulsification instrument negative pressure pump has the advantages such as stable performance, response speed be fast, but also also exist that technical difficulty is high, complex structure, the shortcoming that with high costs, maintenance is complicated, volume is relatively large.
Summary of the invention
The object of the invention is, in order to solve existing cataract ultrasonic emulsification instrument negative pressure pump, there is the advantages such as stable performance, response speed be fast, but also also exist that technical difficulty is high, complex structure, the problem that with high costs, maintenance is complicated, volume is relatively large, and then provide a kind of structure simple, with low cost, for ease of maintenaince and change, compact, the Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument that can set various modes flexibly.
The object of the invention is to be achieved through the following technical solutions:
A kind of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument, comprise: the pipeline of suction pipeline, hard liquid-collecting box, current limiter and connection negative pressure source with filtering net, the end of described suction pipeline is connected with the hard liquid-collecting box inlet with filtering net, liquid outlet with the hard liquid-collecting box of filtering net is connected with the pipeline being connected negative pressure source, and the pipeline of connection negative pressure source is connected with current limiter.Described current limiter comprises hard shell, current limliting material, microtubule, electric-controlled switch, the first medical silicone tube and the second medical silicone tube, one end of described hard shell is provided with inlet opening, the other end of hard shell is provided with liquid outlet, described current limliting material is arranged in hard shell, one end of described microtubule is connected with the liquid outlet of hard shell, described electric-controlled switch is connected on microtubule, described first medical silicone tube is connected with the inlet opening of hard shell, and the second medical silicone tube is connected with the liquid outlet of microtubule.
The present invention compares with existing ultrasonic emulsification instrument negative pressure pump system has following advantage:
1: price advantage.Existing ultrasonic emulsification instrument negative pressure pump system is the core component of ultrasonic emulsification instrument, account for about 50% of ultrasonic emulsification instrument cost, the price of current ultrasonic emulsification instrument is not about 20 ten thousand to 100 ten thousand RMB not etc., about the price of ultrasonic emulsification instrument negative pressure pump system is about 10 ten thousand to 50 ten thousand RMB.And the present invention only has silica gel pipeline, simple electric-controlled switch, and the Medical negative pressure source of low price (price such as Medical suction unit, sputum aspirator about 200 yuan to 1000 yuans not etc.), so cost of the present invention can control at 1 to 2 ten thousand yuan even lower completely.So price of the present invention is about 1 to two/10th 1/10th of existing ultrasonic emulsification instrument negative pressure pump system.
2, production technology advantage.Existing ultrasonic emulsification instrument negative pressure pump system is accurate complicated, and need certain technical strength and working condition to manufacture, great majority need import, and domestic at present only have minority producer just can manufacture.And the present invention is made up of simple medical silica-gel pipeline and electric-controlled switch, production technology is extremely simple, and most domestic medical apparatus and instruments manufacturer all has the ability to produce.
3, the advantage of maintenance cost.Existing ultrasonic emulsification instrument negative pressure pump system is accurate complicated because of it, and the maintenance of fault needs producer technical professional to keep in repair, and in addition because its price is high, the renewal cost of parts is also relatively high.So the personnel cost of its breakdown maintenance, consumables cost is all higher.And the present invention because of its structure simple, safeguard and only need directly to change the even whole system conversion of parts, so require very low to the technical merit of maintainer, the present invention is because of cheap in addition, so the expense of the replacing of parts or even the replacing of whole system all relative moderate.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument of the present invention;
Fig. 2 is the structural representation (plate object is provided with micropore) of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument of the present invention;
Fig. 3 is the structural representation (plate object is provided with gap) of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument of the present invention;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the structural representation (current limliting material is the granular substances such as plastic grain, glass particle or gravel) of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail: the present embodiment is implemented under premised on technical solution of the present invention, gives detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, a kind of Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument involved by the present embodiment, comprise: suction pipeline 1, hard liquid-collecting box 2, current limiter 8 and the pipeline 3 being connected negative pressure source with filtering net, the end of described suction pipeline 1 is connected with hard liquid-collecting box 2 inlet with filtering net, liquid outlet with the hard liquid-collecting box 2 of filtering net is connected with the pipeline 3 being connected negative pressure source, and the pipeline 3 of connection negative pressure source is connected with current limiter 8.The current limiter 8 that the pipeline 3 of described connection negative pressure source connects is single or multiple being connected in parallel.
The described hard liquid-collecting box 2 with filtering net is made up of chip discharge pipe 2-3, the multistorey strainer mesh 2-4 of shell 2-1, funnel 2-2, band valve and multilamellar conical screen 2-5, described funnel 2-2 is fixed on the bottom of shell 2-1, the lower end of funnel 2-2 is connected with the chip discharge pipe 2-3 of band valve, multistorey strainer mesh 2-4 is fixed on the centre position in shell 2-1, and multilamellar conical screen 2-5 is arranged on the liquid outlet place of shell 2-1.Described multistorey strainer mesh 2-4 is one to multiple layer.Described multilamellar conical screen 2-5 is one to multiple layer.
As shown in Fig. 2 ~ Fig. 5, described current limiter 8 comprises hard shell 8-1, current limliting material 8-2, microtubule 8-3, electric-controlled switch 8-4, first medical silicone tube 8-5 and the second medical silicone tube 8-6, one end of described hard shell 8-1 is provided with inlet opening 8-7, the other end of hard shell 8-1 is provided with liquid outlet 8-9, described current limliting material 8-2 is arranged in hard shell 8-1, one end of described microtubule 8-3 is connected with the liquid outlet 8-9 of hard shell 8-1, described electric-controlled switch 8-4 is connected on microtubule 8-3, described first medical silicone tube 8-5 is connected with the inlet opening 8-7 of hard shell 8-1, second medical silicone tube 8-6 is connected with the liquid outlet of microtubule 8-3.
Described current limliting material 8-2 is the plate object of a single or multiple lift series connection, and plate object is provided with micropore 8-8 or gap 8-10.
Described current limliting material 8-2 is filter screen.
Described current limliting material 8-2 is sponge.
Described current limliting material 8-2 is plastic grain, glass particle or gravel.
Described current limliting material 8-2 is active carbon.
Described current limliting material 8-2 is stainless steel silk group or nylon yarn group.
Now introduce current limiter 8 in detail with liquid flow order:
First medical silicone tube 8-5: head end is for connecting the suction pipeline part of various ophthalmology suction pump, and tail end is connected with the inlet opening 8-7 of hard shell 8-1.
Hard shell 8-1: head end connects the first medical silicone tube 8-5, tail end connects microtubule 8-3.For the core of whole current limiter, for hard material is made, include current limliting material 8-2.Current limliting material 8-2 in hard shell 8-1 comprises following form, can be the micropore of single or multiple series connection, crack, filter screen, microtubule, silk group, the form such as active carbon or sponge, or the single or multiple random combination of aforementioned forms.
Microtubule 8-3: head end connects the liquid outlet 8-9 of hard shell 8-1, and tail end connects the second medical silicone tube 8-6, be one section of caliber tiny can produce deformation because of stressed extruding there is certain elastic small pipeline.Can be opened by electric-controlled switch 8-4 or close.
Second medical silicone tube 8-6: head end connects microtubule 8-3, and tail end connects various negative pressure source.
Work process: above-mentioned pipeline, joins end to end by the order of the first medical silicone tube 8-5, hard shell 8-1, microtubule 8-3 and the second medical silicone tube 8-6 for successively with liquid flow order.After electric-controlled switch 8-4 is open, allow the head end of the first medical silicone tube 8-5 of the liquid self-limiting device of whole pipeline to flow to the tail end of the second medical silicone tube 8-6, when the liquid of whole pipeline is with specified flow rate, liquid in whole pipeline is only subject to the viscous restriction (resistance is less) that pipeline and current limliting material 8-2 produce, to the flowing of liquid without considerable influence, when the flow velocity of the liquid of whole pipeline strengthens suddenly (exceeding nominal flow rate), the liquid of quick flowing can produce larger turbulent resistance also until reach the degree stoping the flow velocity of liquid in pipeline to strengthen further at current limliting material 8-2 place, and then serve the effect of flow rate of liquid in the whole pipeline of restriction.
As shown in Figure 1, further, also comprise the pipeline 4 that backflows with electric-controlled switch, one end of the described pipeline 4 that backflows with electric-controlled switch is connected with suction pipeline 1, and the other end with the pipeline 4 that backflows of electric-controlled switch is connected with ultrasonic emulsification instrument filling system.Time normal, electric-controlled switch is in closed condition, and during work, electric-controlled switch is opened, and infusion liquid plays the effect of backflowing by the pipeline 4 that backflows with electric-controlled switch to suction pipeline 1 reverse flow.
As shown in Figure 1, the high flow conditions anterior chamber also comprised with electric-controlled switch stablizes pipeline 5 and current limiter 8, one end that described high flow conditions anterior chamber stablizes pipeline 5 is connected with suction pipeline 1, the other end that high flow conditions anterior chamber stablizes pipeline 5 is connected with ultrasonic emulsification instrument filling system, and high flow conditions anterior chamber stablizes on pipeline 5 and is serially connected with current limiter 8.When whole negative pressure line system is in high flow capacity duty, open the electric-controlled switch that high flow conditions anterior chamber stablizes pipeline 5 occluder 8, the Continuous Perfusion of tiny flow quantity is provided to whole pipe-line system, the current limiter 8 on the collaborative pipeline 3 connecting negative pressure source can be played, further raising maintains whole pipe-line system and stablizes, and eliminates the effect that flow springs up.
As shown in Figure 1, also comprise current limliting pipeline 6 and the current limiter 8 of low pressure negative pressure source, one end of the current limliting pipeline 6 of described low pressure negative pressure source is connected with the liquid outlet of hard liquid-collecting box 2, the other end of the current limliting pipeline 6 of low pressure negative pressure source is connected with low pressure negative pressure source, and the current limliting pipeline 6 of low pressure negative pressure source is serially connected with current limiter 8.
The current limliting pipeline 6 of low pressure negative pressure source is identical with pipeline 3 character being connected negative pressure source (if when adopting multiple current limiter 8 in parallel as required, the number of current limiter 8 can be incomplete same with the pipeline 3 being connected negative pressure source), by the current limliting pipeline 6 that controls low pressure negative pressure source and the electric-controlled switch group of pipeline 3 occluder 8 being connected negative pressure source, whole pipe-line system can be made to produce four kinds of mode of operations: (one) fixes high negative pressure, the attraction mode of operation that flow is adjustable, the pipeline 3 occluder 8 electric-controlled switch group connecting negative pressure source is opened by programming, the electric-controlled switch group of current limliting pipeline 6 occluder 8 of low pressure negative pressure source has been closed completely.(2) fixing lower negative pressure, the attraction mode of operation that flow is adjustable, is opened the electric-controlled switch group of current limliting pipeline 6 occluder 8 of low pressure negative pressure source by programming, the electric-controlled switch group connecting pipeline 3 occluder 8 of negative pressure source has been closed completely.(3) negative pressure and flow all can adjust and the simulation venturi pump pattern of negative pressure and flow synchronization lifting within the specific limits, by applying current limliting pipeline 6 occluder 8 electric-controlled switch of low pressure negative pressure source and be connected pipeline 3 occluder 8 electric-controlled switch of negative pressure source simultaneously, and the switch of programming Control two parts electric-controlled switch group electric-controlled switch realizes.(4) firm discharge, the simulation peristaltic pump mode of operation that negative pressure is adjustable within the specific limits, equally by applying the electric-controlled switch connecting pipeline 3 occluder 8 of negative pressure source and current limliting pipeline 6 occluder 8 of low pressure negative pressure source simultaneously, and the switch of programming Control two parts electric-controlled switch group electric-controlled switch realizes.
As shown in Figure 1, also comprise the air purge pipeline 7 of band electric-controlled switch, the arrival end of the air purge pipeline 7 of described band electric-controlled switch is connected with the liquid outlet of hard liquid-collecting box 2, and the port of export is connected in parallel to negative pressure source with the pipeline 3 being connected negative pressure source.
Time normal, its electric-controlled switch is in closed condition, band electric-controlled switch air purge pipeline 7 be mainly used in whole negative pressure line system works before eliminate the air in whole pipeline and get pipeline express developed.When connect negative pressure source pipeline 3, with the pipeline 4 that backflows of electric-controlled switch, high flow conditions anterior chamber stablize on the current limliting pipeline 6 of pipeline 5 and low pressure negative pressure source electric-controlled switch be all in closed condition time, opening the electric-controlled switch of the air purge pipeline 7 of band electric-controlled switch, infusion liquid can being made to rinse whole pipeline and the quick air eliminated in whole pipeline through the hard liquid-collecting box 2 with filtering net to being with the air purge pipeline 7 of electric-controlled switch to flow fast by suction pipeline 1.
The above; be only the present invention's preferably detailed description of the invention; these detailed description of the invention are all based on the different implementations under general idea of the present invention; and protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. a Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument, comprise: suction pipeline (1), hard liquid-collecting box (2), current limiter (8) and the pipeline (3) being connected negative pressure source with filtering net, the end of described suction pipeline (1) is connected with hard liquid-collecting box (2) inlet with filtering net, liquid outlet with the hard liquid-collecting box (2) of filtering net is connected with the pipeline (3) being connected negative pressure source, and the pipeline (3) of connection negative pressure source is connected with current limiter (8), it is characterized in that, described current limiter (8) comprises hard shell (8-1), current limliting material (8-2), microtubule (8-3), electric-controlled switch (8-4), first medical silicone tube (8-5) and the second medical silicone tube (8-6), one end of described hard shell (8-1) is provided with inlet opening (8-7), the other end of hard shell (8-1) is provided with liquid outlet (8-9), described current limliting material (8-2) is arranged in hard shell (8-1), one end of described microtubule (8-3) is connected with the liquid outlet (8-9) of hard shell (8-1), described electric-controlled switch (8-4) is connected on microtubule (8-3), described first medical silicone tube (8-5) is connected with the inlet opening (8-7) of hard shell (8-1), second medical silicone tube (8-6) is connected with the liquid outlet of microtubule (8-3).
2. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 1, is characterized in that, the upper current limiter (8) connected of pipeline (3) of described connection negative pressure source is single or multiple parallel connection.
3. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 2, it is characterized in that, the described hard liquid-collecting box (2) with filtering net is by shell (2-1), funnel (2-2), with the chip discharge pipe (2-3) of valve, multistorey strainer mesh (2-4) and multilamellar conical screen (2-5) composition, described funnel (2-2) is fixed on the bottom of shell (2-1), the lower end of funnel (2-2) is connected with the chip discharge pipe (2-3) of band valve, multistorey strainer mesh (2-4) is fixed on the centre position in shell (2-1), multilamellar conical screen (2-5) is arranged on the liquid outlet place of shell (2-1).
4. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 3, is characterized in that, described multistorey strainer mesh (2-4) is one to multiple layer.
5. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 3, is characterized in that, described multilamellar conical screen (2-5) is one to multiple layer.
6. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 1, it is characterized in that, also comprise the pipeline that backflows (4) with electric-controlled switch, one end of the described pipeline that backflows (4) with electric-controlled switch is connected with suction pipeline (1), and the other end with the pipeline that backflows (4) of electric-controlled switch is connected with ultrasonic emulsification instrument filling system.
7. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 1, it is characterized in that, the high flow conditions anterior chamber also comprised with electric-controlled switch stablizes pipeline (5) and current limiter (8), one end that described high flow conditions anterior chamber stablizes pipeline (5) is connected with suction pipeline (1), the other end that high flow conditions anterior chamber stablizes pipeline (5) is connected with ultrasonic emulsification instrument filling system, and high flow conditions anterior chamber stablizes on pipeline (5) and is serially connected with current limiter (8).
8. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 1, it is characterized in that, also comprise current limliting pipeline (6) and the current limiter (8) of low pressure negative pressure source, one end of the current limliting pipeline (6) of described low pressure negative pressure source is connected with the liquid outlet of hard liquid-collecting box (2), the other end of the current limliting pipeline (6) of low pressure negative pressure source is connected with low pressure negative pressure source, and the current limliting pipeline (6) of low pressure negative pressure source is serially connected with current limiter (8).
9. Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument according to claim 1, it is characterized in that, also comprise the air purge pipeline (7) of band electric-controlled switch, the arrival end of the air purge pipeline (7) of described band electric-controlled switch is connected with the liquid outlet of hard liquid-collecting box (2), and the port of export is connected in parallel to negative pressure source with the pipeline (3) being connected negative pressure source.
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| CN201310313716.2A CN103356328B (en) | 2013-07-24 | 2013-07-24 | Negative-pressure suction pipeline system for ophthalmic phacoemulsification instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105456023A (en) * | 2016-01-13 | 2016-04-06 | 孟媛 | Ophthalmic drainage eye-washing device |
| CN109875758A (en) * | 2019-04-06 | 2019-06-14 | 魏光美 | One kind being used for ophthalmic negative-pressure suction pipeline current limiter |
| CN113730090A (en) * | 2020-05-27 | 2021-12-03 | 深圳市钛金时代科技开发有限公司 | Whole pipeline phacoemulsification external member |
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| CN1642502A (en) * | 2002-03-19 | 2005-07-20 | S.K.制药公司 | Methods and systems for performing vitrectomy with continuous perfluorocarbon infusion |
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| JP4492881B2 (en) * | 1997-11-10 | 2010-06-30 | 株式会社ニデック | Ophthalmic surgery equipment |
| WO2011124388A1 (en) * | 2010-04-09 | 2011-10-13 | Gesundheitsmanager Gmbh | Extraction system for extracting a body fluid |
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| CN2125091U (en) * | 1991-12-05 | 1992-12-16 | 张连钢 | Vertical taper net removing waste device |
| CN1642502A (en) * | 2002-03-19 | 2005-07-20 | S.K.制药公司 | Methods and systems for performing vitrectomy with continuous perfluorocarbon infusion |
| CN101346112A (en) * | 2005-12-16 | 2009-01-14 | 数据有限责任公司 | Aspiration system for ophthalmic medical devices |
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