There is gas-permeable but the membrane switch of liquid impermeable barrierthe cross reference of related application
This application claims the patent application serial numbers the 61/782nd that the title submitted on March 14th, 2013 is " for having device, the system and method for the membrane switch of permeable layers " (" Devices; Systems and Methods for a Membrane Switch withPermeable Layer "), the priority of No. 131, the full content of this application is incorporated herein by reference.
Technical field
The disclosure relates generally to the device relevant with membrane switch and system.More specifically, provide a kind of membrane switch, it can be exposed to and comprise vacuum treated sterilization treatment, and does not damage switch.
Background technology
Generally, various embodiment of the present invention comprises the membrane switch of improvement.As technical staff will easily recognize, membrane switch is known.Therefore, known membrane switch can be described to " wherein at least one contact be on flexible substrates or the instant shut-in device be made up of it ".
Known membrane switch has 4 layers or more layers usually, but can have more or less layer.The top layer of membrane switch is the interface between user and machine.Other key stratum is printed circuit.This also can be the flexible circuit be made up of copper and polyimide material.Although cheap design is kept together by other mechanical devices of such as keyboard case and so on, these layers use contact adhesive assembled usually.By printing short circuit pad or carrying out the contact between two traces by the metal dome stood on leg.
In certain embodiments, membrane switch can by back lighting.There are the three kinds of standard methods being used for back lighting membrane switch.
First option uses light-emitting diode (LED) to carry out back lighting.But LED produces speck and is not suitable for the whole back lighting of counter plate, and as indicator light.LED can be surface mounted to circuit layer or be placed in independent LED layer.
Second option is optical fiber.In typical design, the braiding optical fiber cloth of two-layer or more layer is used to form rectangular emitting area.Then the fiber of one end of coming off is bundled into circular ferrule and is coupled to one or more LED light source.Long-range light source provides the life-span of 10000 to 100000 hours.Optical fiber is not subject to the impact of extreme humidity (0% to 100%) or temperature (-40 DEG C to+85 DEG C).
3rd standard option uses electroluminescent (EL) lamp.They are cheap relative to optical fiber, and provide extra design flexibility.The color of the light sent from EL lamp can change according to the fluorophor used.Some common colors are blue/green and yellow/green, white, blueness and orange.EL lamp has the half-life of about 3000 to 8000 hours according to the quality of fluorophor.Once they reach its half-life, brightness just starts dimmed rapidly.If lamp works within the period extended, then EL lamp is not a good selection thus.Dimmed or flicker may make the life-span of lamp double.
As described herein, the application of laminar films switch has a lot, comprises, but is certainly not limited to, patch rotary-cut art system.
The known application of laminar films switch comprises microwave oven panel, Air-Conditioning Control Panel, TV remote controller etc.By providing the tactile feedback of key to top pet layer embossing or embedding metal clips, polyester domes or formation graph layer.
The benefit of membrane switch comprises easy to clean, sealability and unobtrusive image (low profile) thereof.Membrane switch can use together with other control system (such as, touch-screen, keyboard, lighting apparatus), and they also can be the same with switch panel with the film keyboard in computer complicated as mobile device.
But known membrane switch is vulnerable in needs some process (such as, sterilizing etc.) vacuum treated.The power infringement stratiform membrane switch produced in known such as vacuum treated process.In addition, known membrane switch being exposed to fluid is the problem causing damaging membrane switch.The restriction of these vulnerabilities can implement the application of stratiform thin film switch.
A kind of environment that can merge membrane switch includes, but not limited to patch rotary-cut art (rotationalatherectomy).Various technology and instrument are developed for removing or repair the tissue in artery and similar body passage.The frequent goal of these technology and instrument removes the AP in the artery of patient.Atherosclerotic feature is gathering of fat deposition (atheroma) in the theca interna (interior subcutaneous) of blood vessel patient.Many times As time goes on, initial deposition becomes the relatively soft atherosclerotic material hardening being rich in cholesterol to become calcify atherosclerotic patch.This artery congee sample limits the flowing of blood, and be therefore commonly called stenotic lesion or narrow, blocking material is called as stenotic material.If do not treated, this narrow thing can cause angina pectoris, hypertension, myocardial infarction, apoplexy etc.
Patch rotary-cut operation has become a kind of common technique removing this stenotic material.Use this operation to open the opening of the calcify lesion in coronary artery the most continually.The most usual, be not used alone patch rotary-cut operation, but carry out balloon angioplasty operation after which, very frequently, placing rack after the operation of this balloon angioplasty, to help the patency of the artery stayed open.For non-calcified pathology, the most usually, balloon angioplasty is used alone to open artery, the patency of the artery that usual placing rack stays open.But, research shows, experienced by balloon angioplasty and there is remarkable percentage experience stent restenosis in the patient be placed in artery (namely, the obstruction of support), the most frequent, as the result of cicatricial tissue undue growth in support, stent restenosis develops into as time goes by.In this case, patch resection operation is preferred operation, to remove unnecessary cicatricial tissue from support (balloon angioplasty is not very effective in support), thus recovers the patency of artery.
Several patch rotary cutting apparatus for attempting to remove stenotic material are developed.In the such as a kind of device shown in No. the 4th, 990,134, United States Patent (USP) (Auth), the abrasive drilling being coated with abrasive lapping material (such as, diamond particles) is carried on the far-end of flexible drive shaft.Abrasive drilling is high speed rotating (usually, such as, in the scope of about 150000 to 190000 revolutions per minutes) while it is pushed into through narrow thing.But, because abrasive drilling just removes stenotic tissue, so the flowing of its occlude blood.Once abrasive drilling is pushed into through narrow thing, artery just equals being opened to or only less times greater than the diameter of the largest outer diameter of abrasive drilling.Usually, the abrasive drilling of more than a kind of size must be utilized artery to be opened to the diameter of expectation.
United States Patent (USP) the 5th, 314, No. 438 (Shturman) discloses the another kind of patch resection device with driving shaft, and a part for this driving shaft has the diameter of increasing, at least one section in this enlarged surface is covered by abrasives, to limit the abrasive material section of driving shaft.When with High Rotation Speed, abrasive material section can remove stenotic tissue from artery.Although this patch device for excising has some advantage compared to Auth device due to its flexibility, artery also only can be opened to the diameter of the diameter of the lapped face of the increasing approximating driving shaft by it, because this device does not have bias in fact.
United States Patent (USP) the 6th, 494, No. 890 (Shturman) discloses a kind of known patch resection device of driving shaft with the eccentric part that band strengthens, and wherein, at least one section of the part of this increasing is covered by abrasives.When with High Rotation Speed, abrasive material section can remove stenotic tissue from artery.Partly due to the orbit rotation motion during high speed operation, artery can be opened to the diameter of the rest diameter of the eccentric part being greater than increasing by this device.Because the eccentric part strengthened comprises the driving axis be not bound together, so the eccentric part of the increasing of driving shaft can be bending during being positioned in narrow thing or during high speed operation.This bending larger diameter opening allowed during high speed operation, but, in less control that diametrically also can provide than expecting of the artery of reality grinding.In addition, some stenotic tissue may passage completely, to such an extent as to Shturman device can not be placed on wherein.Because Shturman requires that the eccentric part of the increasing of driving shaft is placed in realize grinding in stenotic tissue, so it will be not too effective when preventing the eccentric part strengthened from entering narrow thing.United States Patent (USP) the 6th, 494, No. 890 be openly all herein incorporated by reference.
United States Patent (USP) the 5th, the tissue that 681, No. 336 (Clement) provides a kind of known bias removes abrasive drilling, and this abrasive drilling has the coating of the abrasive grain being fixed to a part for its outer surface by suitable binding material.But this structure is limited, because Clement explains at third column the 53 to 55 row, " asymmetric abrasive drilling is rotated with the speed lower than the speed used with high-speed grinding device to compensate heat or imbalance ".That is, to the size of fixed solid abrasive drilling and quality, this abrasive drilling can not be rotated with the high speed used during patch resection operation (that is, 20000 to 200000 revolutions per minutes).In fact, barycenter will cause forming significant centrifugal force from the rotation axis skew of driving shaft, thus on arterial wall, apply too large pressure and produce too many heat and excessive particle.
Usual patch resection device utilizes the wire distad extended from the far-end of driving shaft to carry out auxiliary profession doctor and guides this device by the vascular of patient and arrive the position expected, to remove patch or adipose tissue deposit.Wire is new line or more thread-changing all must be written into patch resection device, makes medical practitioners can control it from the near-end of patch resection device.The open existing list of references for the method and apparatus by tubular element device for loading comprises: United States Patent (USP) the 3rd, 370, No. 150 (Nordgren); United States Patent (USP) the 4th, 851, No. 694 (Rague); United States Patent (USP) the 5th, 540, No. 649 (Bonnell); United States Patent (USP) the 5th, 779, No. 623 (Bonnell); United States Patent (USP) the 6th, 828, No. 523 (Gysi); No. 2004/0254566th, U.S. Patent Publication (Plicchi); No. 2006/0161043rd, U.S. Patent Publication (Neumann); No. 2007/0299305th, U.S. Patent Publication (Murakami); And No. 2009/0326449th, U.S. Patent Publication (Wang), all these lists of references are incorporated herein by reference.The disclosure of these prior aries instructs the device and the system that use motorized rollers to realize the bi-directional axial translation of tubular element usually in relevant portion, wherein, one of described roller be loaded spring (towards contrary roller be biased), with increase with the cooperation of tubular element with contact.In addition, No. 2010/0234873rd, the U.S. Patent Publication be incorporated herein by reference (Nagano) discloses a kind of for driving the drive unit of the linear body with flexibility, wherein, be applied in so that only the power of drive wire gonosome and the pressure that is applied to spring to be determined by control unit and to adjust in the axial direction.No. 2012/0232476th, the U.S. Patent Publication be incorporated herein by reference (Bhat) discloses a kind of steering with the driving wheel that two radial directions for making tubular element turn to are arranged on the contrary, and driving wheel has the multiple rods distributed around the wheel rotating shaft of driving wheel.The United States Patent (USP) be incorporated herein by reference the 7th, 955, No. 252 (Suzuki) discloses a kind of handling implement and inserts contraction and whirligig, and this device has the retaining member be arranged between treatment tool and pair of rolls.The United States Patent (USP) be incorporated herein by reference the 6th, 786, No. 727 (Irion) discloses a kind of holding device having fixed gear and arrange, this fixed gear arranges to have bevel gear with the pressure applying to fix on instrument.No. 2012/0071821st, the U.S. Patent Publication be incorporated herein by reference (Yu) discloses a kind of for also activating rotating member in the opposite rotation direction to produce the apparatus and method that slender member is handled in linear movement by activating rotating member on contrary linear direction to produce rotary motion.
Therefore, usually need a kind of laminar films switch in the art, this laminar films switch also comprises gas-permeable but the impermeable polymer of liquid.This polymer solves the some irritating problem that current stratiform membrane switch experiences.More specifically, patch rotary cutting apparatus and system need also to comprise gas-permeable but the laminar films switch of the impermeable polymer of liquid.In addition, the invention solves these needs.
Summary of the invention
Native system is for membrane switch in various embodiments generally.More specifically, provide a kind of membrane switch, it can be exposed to and comprise vacuum treated sterilization treatment, and does not damage switch.Therefore, membrane switch of the present invention comprises gas-permeable but the impermeable rete of liquid.In various embodiments, membrane switch can be used in patch rotary-cut art system.But membrane switch of the present invention has the application widely except patch rotary-cut art.
Accompanying drawing explanation
Fig. 1 illustrates the exploded view of one embodiment of the present of invention.
Embodiment
Although the present invention is applicable to carrying out various amendment and interchangeable form, its details illustrates in an illustrative manner in the accompanying drawings and is described in detail in this article.But, should be appreciated that, should not limit the invention to described specific embodiment.On the contrary, the present invention to cover fall within the spirit and scope of the present invention all amendment, equivalent and alternative.
The invention provides and a kind ofly also comprise gas-permeable but the laminar films switch of the impermeable rete of liquid.This rete can comprise polymer, and, solve the some irritating problem that current stratiform membrane switch experiences.
First, the present invention allows to have gas-permeable but the laminar films switch of the impermeable rete of liquid is exposed to produce and otherwise will damages the process of the such as sterilizing and/or vacuum treatment and so on of the power of known laminar films switch.
The second, the present invention allows to have gas-permeable but the laminar films switch of the impermeable rete of liquid is exposed to liquid.The current known laminar films switch of this exposure infringement.
3rd, the present invention allows gas to permeate stratiform membrane switch.
In addition, by gas-permeable but the impermeable rete of liquid adds the external pressure that laminar films switch makes the present invention allow outside balanced internal switch pressure and switch to, resist internal switch membrane material and component exposed in destructive fluid simultaneously.
The of the present invention various embodiment comprising membrane switch can be integrated into the United States Patent (USP) the 6th as at the title be incorporated herein by reference being " eccentric patch Atherectomy devices " (" ECCENTRIC ROTATIONAL ATHERECTOMYDEVICE "), in the control electronic device of the patch rotary-cut art system described substantially in 494, No. 890.In addition, the patent below owned together or the open of patent application are all herein incorporated by reference: title is the United States Patent (USP) the 6th, 295 of " patch Atherectomy devices " (" ROTATIONAL ATHERECTOMY DEVICE "), No. 712; Title is the United States Patent (USP) the 6th of " driving shaft and manufacture method thereof for the bias of patch resection device " (" ECCENTRIC DRIVE SHAFT FOR ATHERECTOMY DEVICE ANDMETHOD FOR MANUFACTURE "), 132, No. 444; Title is the United States Patent (USP) the 6th of " driving shaft and manufacture method for the bias of patch resection device " (" ECCENTRIC DRIVE SHAFT FORATHERECTOMY DEVICE AND METHOD FOR MANUFACTURE "), 638, No. 288; Title is No. the 5th, 314,438, the United States Patent (USP) of " the abrasive material drive shaft device for patch rotary-cut art " (" ABRASIVEDRIVE SHAFT DEVICE FOR ROTATIONAL ATHERECTOMY "); Title is No. the 6th, 217,595, the United States Patent (USP) of " patch Atherectomy devices " (" ROTATIONAL ATHERECTOMYDEVICE "); Title is No. the 5th, 554,163, the United States Patent (USP) of " patch resection device " (" ATHERECTOMY DEVICE "); Title is No. the 7th, 507,245, the United States Patent (USP) of " having the rotational atherectomy device of abrasive material hat " (" ROTATIONAL ANGIOPLASTY DEVICE WITHABRASIVE CROWN "); Title is the United States Patent (USP) the 6th of " have can the patch Atherectomy devices that couples of prime mover of radial expansion " (" ROTATIONAL ATHERECTOMY DEVICEWITH RADIALLY EXPANDABLE PRIME MOVER COUPLING "), 129, No. 734; Title is No. the 8th, 597,313, the United States Patent (USP) of " grinding head for the bias of high speed patch Atherectomy devices " (" ECCENTRICABRADING HEAD FOR HIGH-SPEED ROTATIONAL ATHERECTOMYDEVICES "); Title is No. the 8th, 439,937, the United States Patent (USP) of " for opening the system of Occlusion, equipment and method " (" SYSTEM, APPARATUS AND METHOD FOR OPENING ANOCCLUDED LESION "); Title is No. 2009/0299392nd, the U.S. Patent Publication of " grinding element for the bias of high speed patch Atherectomy devices " (" ECCENTRIC ABRADING ELEMENT FORHIGH-SPEED ROTATIONAL ATHERECTOMY DEVICES "); Title is No. 2010/0198239th, the U.S. Patent Publication of " for having many ground material head of the patch rotary cutting apparatus of the barycenter of transverse shift " (" MULTI-MATERIAL ABRADING HEAD FOR ATHERECTOMYDEVICES HAVING LATERALLY DISPLACED CENTER OF MASS "); Title is No. 2010/0036402nd, the U.S. Patent Publication of " having the patch Atherectomy devices of the driving shaft of prebuckling " (" ROTATIONAL ATHERECTOMY DEVICE WITH PRE-CURVED DRIVESHAFT "); Title is No. 2009/0299391st, the U.S. Patent Publication of " grinding and cutting head for the bias of high speed patch Atherectomy devices " (" ECCENTRIC ABRADING AND CUTTING HEADFOR HIGH-SPEED ROTATIONAL ATHERECTOMY DEVICES "); Title is No. 2010/0100110th, the U.S. Patent Publication of " grinding and cutting head for the bias of high speed patch Atherectomy devices " (" ECCENTRIC ABRADING AND CUTTING HEAD FOR HIGH-SPEEDROTATIONAL ATHERECTOMY DEVICES "); Title is No. D610258th, the US Design Patent of " patch rotary-cut abrasive material hat " (" ROTATIONAL ATHERECTOMY ABRASIVECROWN "); Title is No. D6107102nd, the US Design Patent of " patch rotary-cut abrasive material hat " (" ROTATIONAL ATHERECTOMY ABRASIVE CROWN "); Title is No. 2009/0306689th, the U.S. Patent Publication of " the two-way expandable heads for patch Atherectomy devices " (" BIDIRECTIONAL EXPANDABLE HEAD FOR ROTATIONALATHERECTOMY DEVICE "); Title is No. 2010/0211088th, the U.S. Patent Publication of " grinding head of patch rotary-cut art segmentation and the method for raising grinding efficiency " (" ROTATIONAL ATHERECTOMYSEGMENTED ABRADING HEAD AND METHOD TO IMPROVE ABRADINGEFFICIENCY "); Title is No. 2013/0018398th, the U.S. Patent Publication of " having the patch Atherectomy devices of electro-motor " (" ROTATIONAL ATHERECTOMY DEVICE WITH ELECTRICMOTOR "); And title is No. the 7th, 666,202, the United States Patent (USP) of " track patch resection device traverse design " (" ORBITAL ATHERECTOMY DEVICE GUIDE WIRE DESIGN ").Can be susceptible to by the present invention, the one or more feature in embodiments of the invention can with one or more Feature Combinations of the embodiment of patch device for excising described herein; Particularly, in the membrane switch of the present invention handheld electronic device that can be integrated into the patch rotary-cut art system described in superincumbent list of references and control system.
Fig. 1 illustrates the exploded view of exemplary embodiment 100 of the present invention, wherein, and the adhesion of the adjacent layer after arrow instruction assembling.Therefore, provide from top layer 110 to bottom 180 with lower floor's (as shown in the figure), as will readily appreciate that in technical staff, with adhesive or equivalent, every one deck is invested on the most contiguous layer (multiple layer).
Graphic overlaying layer 110, this graphic overlaying layer is illustrated as most top layer.
Figure mounting layer 120, this figure mounting layer is attached to graphic overlaying layer 110, and comprises two actuator cutouts (actuator cutout) 122.
Dome retaining layer 130, this dome retaining layer is attached to figure mounting layer 120.Therefore, figure mounting layer 120 is sandwiched between adjacent graphic overlaying layer 110 and adjacent dome retaining layer 130 effectively.
Dome pad (Spacer) 140, as shown in the figure, two dome pads 140, be attached to afterbody packed layer 150, afterbody packed layer 150 also comprises two dome pad otch 152, wherein each dome pad 140 is aimed at a dome pad otch 152, and wherein afterbody packed layer 150 is attached to dome retaining layer 130.
Activatable circuit layer 160, comprise required activatable SWITCHING CIRCUITRY s known as technical staff, wherein dome pad otch 152 and dome pad 140 are aimed at activatable Circuits System, and circuit layer 160 is attached to afterbody packed layer 150.
Gas-permeable but the impermeable rete 170 of liquid, be attached to adjacent circuit layer 160 and adjacent installation adhesive layer 180.Therefore, as shown in the figure, circuit layer 160 is sandwiched in afterbody packed layer 150 and gas-permeable but between the impermeable rete 170 of liquid.
Adhesive layer 180 is installed, is attached to adjacent gas-permeable but the impermeable rete 170 of liquid.Therefore, gas-permeable but the impermeable rete of liquid 170 are sandwiched between adjacent installation adhesive layer 180 and adjacent circuit layer 160.
As shown in the figure, the membrane switch 100 of exemplary assembling comprises thus:
Graphic overlaying layer 110;
Figure mounting layer 120, this figure mounting layer to be arranged on below graphic overlaying layer 110 and to invest this graphic overlaying layer;
Dome retaining layer 130, this dome retaining layer to be arranged on below figure mounting layer 120 and to invest this figure mounting layer;
Afterbody packed layer 150, this afterbody packed layer to be arranged on below dome retaining layer 130 and to invest this dome retaining layer;
Activatable circuit layer 160, this activatable circuit layer to be arranged on below afterbody packed layer 150 and to invest this afterbody packed layer;
Gas-permeable but the impermeable rete 170 of liquid, this gas-permeable but the impermeable rete of liquid to be arranged on below activatable circuit layer 160 and to invest this circuit layer; And
Install adhesive layer 180, this installation adhesive layer is arranged on gas-permeable but invests this rete below the impermeable rete 170 of liquid.
Technical staff will easily recognize that the replacement of exemplary film switch 100 is arranged, it comprises: change gas-permeable but the impermeable position of rete 170 in illustrative switch 100 of liquid, and in illustrative switch 100, provide more than one gas-permeable but the impermeable rete 170 of liquid.Each such alternative within the scope of the invention.
Forward gas-permeable to but the impermeable rete 170 of liquid, the material for rete 170 must show that not only liquid is impermeable but also the characteristic of gas-permeable.Foamed plastic film can show this two kinds of characteristics, and it has the thickness being less than 2 millimeters usually, simultaneously, foamed plastic film also comprises minute aperture, these minute apertures are enough little of to allow gas to pass therethrough but not allow fluid molecule (such as, but not limited to, hydrone) to pass therethrough.Some exemplary foamed plastic films comprise the polyurethane film of foaming, polytetrafluoroethylene (PTFE), polypropylene and polyethylene.Other material easily can show that oneself is to those skilled in the art, and each such gas-permeable but the impermeable material of liquid are all within the scope of the invention.
The present invention should not be regarded as being limited to above-mentioned particular example, and is appreciated that covering all aspects of the present invention.Those skilled in the art in the invention easily will expect the present invention's various amendment applicatory, equivalent processes and various structures when reading this specification.