CN105676324A - Polyhedral concave lens arranged on medical equipment and used for pressure wave focussing - Google Patents
Polyhedral concave lens arranged on medical equipment and used for pressure wave focussing Download PDFInfo
- Publication number
- CN105676324A CN105676324A CN201610150061.5A CN201610150061A CN105676324A CN 105676324 A CN105676324 A CN 105676324A CN 201610150061 A CN201610150061 A CN 201610150061A CN 105676324 A CN105676324 A CN 105676324A
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- Prior art keywords
- lens
- concavees lens
- polyhedron
- plane
- incidence
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00137—Details of operation mode
- A61B2017/00141—Details of operation mode continuous, e.g. wave
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
Abstract
The invention provides a polyhedral concave lens arranged on medical equipment and used for pressure wave focussing, the lens comprises an incident plane and a light output plane, wherein a Fresnel lens insection is arranged on the incident plane or the light output plane. According to the above, the polyhedral concave lens provided by the invention solves a pressure transmission loss problem caused by thickness difference of lens, manufacturing materials of lens are saved, efficiency of pressure transmission is improved, and the polyhedral concave lens can effectively bring a change on focal spot and focal distance of pressure wave focussing.
Description
Technical field
The present invention relates to technical field of medical equipment, particularly relate to the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on.
Background technology
At present, pressure wave medically has obtained applying more widely, as external stone crushing, treatment soft tissue injury, treatment nonunion, treatment necrosis of femoral head, Cardiovarscular etc. all need to use pressure wave.
Pressure wave is a kind of transmission form of energy, it acts on the metallic membrane in liquid by the magnetoresistive effect of high electric field pulse release generation, electrohydraulic effect, piezoelectric effect etc., cause metallic membrane high speed vibration, the energy of vibrations passes through liquid transfer in the way of pressure, owing to being that pressure occurs in the form of a pulse, so being called pressure wave. Pressure wave has some characteristics of sound wave or light wave refraction, reflection, focusing and energy etc.
In treating equipment for medical purpose, pressure wave generator is core component, and pressure wave generator mainly selects magnetoresistive effect pressure wave pulse generation device, electrohydraulic effect pressure wave pulse generation device and piezoelectric effect pressure wave pulse generation device. Wherein, magnetoresistive effect pressure pulse generating unit can be divided into again according to focusing mode: refraction type electromagnetic pressure wave generating device, reflective electromagnetic pressure ripple mode device, direct-injection type electromagnetic pressure wave generating device, and these devices need to focus on without exception.
The extensive refraction type electromagnetic wave generating device for external stone crushing mainly comprises at present: magnetic basin pedestal, plate coil, focusing lens, and is that medium produces and transmits pressure wave taking water. Due to water to the specific refractory power of light about 1.4, and lens material specific refractory power is 1.5, therefore focuses in water, and lens are necessary for double concave lens, and as Figure 1-3, double concave lens focuses on the focused spot diameter of rear pressure wave at about 15mm.
But, the thickness difference of above-mentioned double concave lens is too big, thinnest part 2mm, and thickness reaches 30mm, what focus on due to this double concave lens again is pressure pulse, and material is the PVC material differed greatly with water-mass density, and the thickness difference that therefore concavees lens are excessive can cause excessive pressure conduction loss.
Summary of the invention
For this reason, technical problem to be solved by this invention is: provide the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, to solve the pressure conduction loss problem because lens thickness difference causes, save the making material of lens, it is to increase the efficiency that pressure transmits.
So, the present invention provides the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, and comprises the plane of incidence of light and the output face of light, wherein, is provided with Fresnel Lenses groove on the plane of incidence or output face.
Wherein, the plane of incidence of these concavees lens being provided with the Fresnel Lenses groove of multiple cambered surfaces of same radian, output face is a complete arc.
Wherein, the plane of incidence of these concavees lens is a complete arc, and output face is provided with the Fresnel Lenses groove of multiple cambered surfaces of same radian.
Wherein, the plane of incidence of these concavees lens is a complete arc, and output face is different radian but the Fresnel Lenses groove of the identical multiple cambered surfaces in the cambered surface center of circle.
Wherein, the plane of incidence of these concavees lens is a complete arc, the Fresnel Lenses groove of different multiple cambered surfaces that output face is identical radian measure but the cambered surface center of circle distributes.
Said lens material is polymethylmethacrylate, polyvinyl chloride, polyethylene, polypropylene, epoxy resin, phenoplast or formaldehyde resin.
The diameter of said lens is 70mm-150mm, and pressure focal length is 50-150mm, and burnt district diameter is 10-40mm, and burnt section length is 30-120mm.
Said lens to be processed as die casting, pressure injection, hot stamping or machine tooling shaping.
The polyhedron concavees lens that medical facilities upward pressure ripple of the present invention focuses on, by arranging Fresnel Lenses tooth on the plane of incidence of light or output face, solve the pressure conduction loss problem because lens thickness difference causes, save the making material of lens, improve the efficiency that pressure transmits, it is possible to the focal spot and the focal length that are effectively focused on by pressure change.
Accompanying drawing explanation
Fig. 1 is pressure wave source double concave lens cross-sectional view in prior art refraction type electromagnetic wave generating device;
Fig. 2 is the vertical view of double concave lens shown in Fig. 1;
Fig. 3 is that the perspective of double concave lens light shown in Fig. 1 focuses on schematic diagram;
Fig. 4 is the polyhedron concavees lens cross-sectional view that medical facilities upward pressure ripple described in the embodiment of the present invention one focuses on;
Fig. 5 is concavees lens vertical view shown in Fig. 4;
Fig. 6 is that the perspective of concavees lens light shown in Fig. 4 focuses on schematic diagram;
Fig. 7 is the polyhedron concavees lens cross-sectional view that medical facilities upward pressure ripple described in the embodiment of the present invention two focuses on;
Fig. 8 is concavees lens vertical view shown in Fig. 7;
Fig. 9 is that the perspective of concavees lens light shown in Fig. 7 focuses on schematic diagram;
Figure 10 is the polyhedron concavees lens cross-sectional view that medical facilities upward pressure ripple described in the embodiment of the present invention three focuses on;
Figure 11 is concavees lens vertical view shown in Figure 10;
Figure 12 is that the perspective of concavees lens light shown in Figure 10 focuses on schematic diagram.
Figure 13 is the polyhedron concavees lens cross-sectional view that medical facilities upward pressure ripple described in the embodiment of the present invention four focuses on;
Figure 14 is concavees lens vertical view shown in Figure 13;
Figure 15 is that the perspective of concavees lens light shown in Figure 13 focuses on schematic diagram.
Embodiment
Below, describe the present invention by reference to the accompanying drawings.
Present embodiments provide the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, comprise the plane of incidence of light and the output face of light, on the plane of incidence or output face, be especially provided with Fresnel Lenses groove.
Fresnel Lenses (Fresnellens) is prior art, also known as screw thread lens, mostly it is note the thin slice pressed by polyolefine material, also glass is had to make, lens surface one side is light face, another side imprinting is by little to big concentric(al) circles, and its texture is that the interference according to light and disturbing is penetrated and relative sensitivity and receiving angle require to design.
Fresnel Lenses is for making convex lens, and being used for is not very high occasion to accuracy requirement, such as slide projector, film magnifying glass, infrared eye etc.Compared with common convex lens, Fresnel Lenses can overcome dimmed, the fuzzy phenomenon in corner that common convex lens occur, this is because the refraction of light only occurs in the face, boundary of medium, owing to common convex lens sheet is thicker, the part of the common convex lens propagate straight of light can make light attenuation. Fresnel lens then can remove the part of light at lens propagate straight, only retains the curved surface that refraction occurs, not only saves a large amount of making materials, but also reach the optically focused effect identical with ordinary lens. Fresnel Lenses looks there is countless multiple concentric(al) circles lines as a slice, i.e. the glass of Fresnel zone, but can reach the effect of convex lens, if projection light source is parallel light, can keep the consistent of image brightness everywhere after converging projection.
Say that Fresnel Lenses has equidistant groove in the side of lens, by these grooves, it is possible to reach reflection or the effect of refraction played by the light belt specifying spectral range.
The convex lens that Fresnel Lenses principle makes can be very thin, it is possible to reduces and makes material, has a lot of purposes. But, but never Fresnel Lenses principle is used for making concavees lens by people, more nobody expects in the therapeutic equipment of such concavees lens for shockwave, the plane of light incidence that Fresnel Lenses groove is arranged on concavees lens by the present embodiment or light output face. Not only solve the pressure conduction loss problem because lens thickness difference causes, save the making material of lens, it is to increase the efficiency that pressure transmits, and the focal spot focused on by pressure and focal length produce also have meaningful change.
The described lens difference of the polyhedron concavees lens that the present embodiment medical facilities upward pressure ripple focuses on and Fresnel Lenses principle is: the lens described in Fresnel Lenses principle are used for convex lens, many focusing surfaces are same radian, and concavees lens described in the present embodiment, according to performance needs, concavees lens focusing surface can be same radian, can also be concentric different radians, in order to distinguish with the lens described in Fresnel Lenses principle, so embodiment adopts polyhedron lens term.
Embodiment one
As Figure 4-Figure 6, present embodiments providing the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, the plane of incidence 11 of these concavees lens is provided with the Fresnel Lenses groove 12 of multiple cambered surfaces of same radian R1, output face 13 is a complete arc. So it is very short that each in lens of light transmits distance, the loss of lens greatly reduces.
Embodiment two
As Figure 7-9, present embodiments providing the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, the plane of incidence 21 of these concavees lens is a complete arc, and output face 22 is provided with the Fresnel Lenses groove 23 of multiple cambered surfaces of same radian. Output face is made up of multiple cambered surfaces of same arc, it is possible to improving the transfer efficiency of pressure, owing to the radius center of circle of radian R2-R5 etc. is at a point, therefore these lens can reduce the loss of lens equally.
Embodiment three
As shown in figs. 10-12, present embodiments provide the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, the plane of incidence 31 of these concavees lens is a complete arc, and output face 32 is the Fresnel Lenses groove 33 of the also different multiple cambered surfaces in different radian and the cambered surface center of circle. Owing to output face 32 is the radian cambered surface of multiple different radii R2-R5 etc., and all cambered surface centers of circle are different, and the feature of these lens to obtain the bigger focal zone of area, or Cheng Jiao district, focal spot.Visible, the focal spot that pressure is focused on by concavees lens described in embodiment and focal length create change.
Embodiment four
As illustrated in figs. 13-15, present embodiments provide the polyhedron concavees lens that a kind of medical facilities upward pressure ripple focuses on, the plane of incidence 41 of these concavees lens is a complete arc, and output face 42 is the Fresnel Lenses groove 43 of the also different multiple cambered surfaces in same radian and the cambered surface center of circle. Owing to output face 42 is the radian cambered surface of multiple same radius R2, and the distribution of all cambered surface centers of circle is different, and the feature of these lens is that same example three equally can obtain the bigger focal zone of area, or Cheng Jiao district, focal spot. Visible, implement focal spot that pressure focuses on by these routine described concavees lens and focal length creates change.
Concavees lens described in the present embodiment, its lens material can be: polymethylmethacrylate (PMMA is commonly called as synthetic glass), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) or epoxy resin, phenoplast, formaldehyde resin etc.
Lens diameter and focal length, burnt district size need to determine according to purposes, such as general diameter is from 70mm-150mm, pressure focal length is at 50-150mm, burnt district diameter 10-40mm, burnt section length is 30-120mm, above-mentioned each yardstick parameter needs to determine according to practical situation, it is possible to be applicable to any size. The processing of lens can be the methods such as die casting, pressure injection, hot stamping, machine tooling.
In sum, the polyhedron concavees lens that medical facilities upward pressure ripple described in the present embodiment focuses on, by arranging Fresnel Lenses tooth on the plane of incidence of light or output face, solve the pressure conduction loss problem because lens thickness difference causes, save the making material of lens, improve the efficiency that pressure transmits, it is possible to the focal spot and the focal length that are effectively focused on by pressure change.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the polyhedron concavees lens that medical facilities upward pressure ripple focuses on, comprise the plane of incidence of light and the output face of light, it is characterised in that, the plane of incidence or output face are provided with Fresnel Lenses groove.
2. polyhedron concavees lens according to claim 1, it is characterised in that, the plane of incidence of these concavees lens is provided with the Fresnel Lenses groove of multiple cambered surfaces of same radian, output face is a complete arc.
3. polyhedron concavees lens according to claim 1, it is characterised in that, the plane of incidence of these concavees lens is a complete arc, output face is provided with different radian, the Fresnel Lenses groove of multiple cambered surfaces of phase concentric.
4. polyhedron concavees lens according to claim 1, it is characterised in that, the plane of incidence of these concavees lens is a complete arc, and output face is different radian but the Fresnel Lenses groove of multiple cambered surfaces that cambered surface, center of circle distribution are also different.
5. polyhedron concavees lens according to claim 1, it is characterised in that, the plane of incidence of these concavees lens is a complete arc, the Fresnel Lenses groove of different multiple cambered surfaces that output face is identical radian measure but the cambered surface center of circle distributes.
6. polyhedron concavees lens according to claim 1 to 5 any one, it is characterised in that, described lens material is polymethylmethacrylate, polyvinyl chloride, polyethylene, polypropylene, epoxy resin, phenoplast or formaldehyde resin.
7. polyhedron concavees lens according to claim 1 to 5 any one, it is characterised in that, described lens to be processed as die casting, pressure injection, hot stamping or machine tooling shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150061.5A CN105676324B (en) | 2016-03-16 | 2016-03-16 | The polyhedron concavees lens of pressure wave focusing on Medical Devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150061.5A CN105676324B (en) | 2016-03-16 | 2016-03-16 | The polyhedron concavees lens of pressure wave focusing on Medical Devices |
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| Publication Number | Publication Date |
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| CN105676324A true CN105676324A (en) | 2016-06-15 |
| CN105676324B CN105676324B (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610150061.5A Active CN105676324B (en) | 2016-03-16 | 2016-03-16 | The polyhedron concavees lens of pressure wave focusing on Medical Devices |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3903990A (en) * | 1972-10-18 | 1975-09-09 | Hitachi Ltd | Acoustic lens |
| US3973235A (en) * | 1973-04-24 | 1976-08-03 | U.S. Philips Corporation | Device for the detection of an acoustic image |
| US4084582A (en) * | 1976-03-11 | 1978-04-18 | New York Institute Of Technology | Ultrasonic imaging system |
| JPH05277105A (en) * | 1992-04-01 | 1993-10-26 | Aloka Co Ltd | Probe for ultrasonic diagnostic device |
| CN2506215Y (en) * | 2001-09-09 | 2002-08-21 | 韩波 | Multi-purpose adjustable electromagnetic wave impact wave-source |
| CN1522670A (en) * | 2003-02-18 | 2004-08-25 | 西门子公司 | Ultrasonic radiation generating device for ultrasonic therapy |
-
2016
- 2016-03-16 CN CN201610150061.5A patent/CN105676324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3903990A (en) * | 1972-10-18 | 1975-09-09 | Hitachi Ltd | Acoustic lens |
| US3973235A (en) * | 1973-04-24 | 1976-08-03 | U.S. Philips Corporation | Device for the detection of an acoustic image |
| US4084582A (en) * | 1976-03-11 | 1978-04-18 | New York Institute Of Technology | Ultrasonic imaging system |
| JPH05277105A (en) * | 1992-04-01 | 1993-10-26 | Aloka Co Ltd | Probe for ultrasonic diagnostic device |
| CN2506215Y (en) * | 2001-09-09 | 2002-08-21 | 韩波 | Multi-purpose adjustable electromagnetic wave impact wave-source |
| CN1522670A (en) * | 2003-02-18 | 2004-08-25 | 西门子公司 | Ultrasonic radiation generating device for ultrasonic therapy |
Non-Patent Citations (1)
| Title |
|---|
| 张福成等: "准平板型声透镜的聚焦原理及其计算", 《陕西师范大学学报自然科学版》 * |
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| Publication number | Publication date |
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| CN105676324B (en) | 2018-10-09 |
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