CN105676324B - The polyhedron concavees lens of pressure wave focusing on Medical Devices - Google Patents
The polyhedron concavees lens of pressure wave focusing on Medical Devices Download PDFInfo
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- CN105676324B CN105676324B CN201610150061.5A CN201610150061A CN105676324B CN 105676324 B CN105676324 B CN 105676324B CN 201610150061 A CN201610150061 A CN 201610150061A CN 105676324 B CN105676324 B CN 105676324B
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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
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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
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00137—Details of operation mode
- A61B2017/00141—Details of operation mode continuous, e.g. wave
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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
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
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- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The present invention provides a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices, include the output face of the plane of incidence and light of light, wherein Fresnel Lenses groove is provided on the plane of incidence or output face.The polyhedron concavees lens of pressure wave focusing on Medical Devices of the present invention, by the way that Fresnel Lenses tooth is arranged on the plane of incidence of light or output face, solve the problems, such as that the pressure conduction caused by lens thickness difference is lost, save the making material of lens, the efficiency of pressure transmission is improved, can variation effectively be generated to the focal spot and focal length of pressure focusing.
Description
Technical field
The present invention relates to a kind of polyhedrons of pressure wave focusing in technical field of medical equipment more particularly to Medical Devices
Concavees lens.
Background technology
Currently, pressure wave has medically obtained comparing being widely applied, such as external stone crushing, is controlled treatment soft tissue injury
Bone nonunion, treatment caput femoris necrosis, treatment angiocardiopathy etc. is treated to be required for using pressure wave.
Pressure wave is a kind of transmission form of energy, it by high electric field pulse release generate galvanomagnetic-effect, electrohydraulic effect,
The effects that piezoelectric effect the metal film in liquid, cause metal film high speed vibration, the energy of vibrations passes through in a manner of pressure
Liquid transmits, due to being that pressure occurs in the form of a pulse, so referred to as pressure wave.Pressure wave have sound wave or light wave refraction,
Some characteristics of reflection, focusing and energy etc..
In treating equipment for medical purpose, pressure wave generator is core component, and pressure wave generator mainly selects electromagnetism
Effect impulse of pressure wave generating means, electrohydraulic effect impulse of pressure wave generating means and piezoelectric effect impulse of pressure wave fill
It sets.Wherein, galvanomagnetic-effect pressure pulse generating means can be divided into again according to the type of focusing：Refraction type electromagnetic pressure wave fills
It sets, reflective electromagnetic pressure wave mode device, direct-injection type electromagnetic pressure wave generating device, and these devices need to gather without exception
It is burnt.
The refraction type electromagnetic wave generating device for being now widely used in external stone crushing includes mainly：Magnetic basin pedestal, plate coil,
Condenser lens, and pressure wave is generated and transmitted using water as medium.Due to water to the refractive index of light 1.4 or so, and lens material
Refractive index is 1.5, therefore is focused in water, and lens are necessary for double concave lens, as shown in Figs. 1-3, after double concave lens focus
The focused spot diameter of pressure wave is in 15mm or so.
But the thickness difference of above-mentioned double concave lens is too big, thinnest part 2mm, and thickness reaches 30mm, and due to this pair
What face concavees lens focused is pressure pulse, and material is the PVC material to differ greatly with water density, therefore the thickness that concavees lens are excessive
Difference can cause excessive pressure conduction to be lost.
Invention content
For this purpose, the technical problem to be solved by the present invention is to：A kind of multi-panel of pressure wave focusing on Medical Devices is provided
Body concavees lens save the making material of lens, improve pressure to solve the problems, such as that the pressure conduction caused by lens thickness difference is lost
The efficiency that power is transmitted.
Then, the present invention provides a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices, including light
The output face of the plane of incidence and light, wherein Fresnel Lenses groove is provided on the plane of incidence or output face.
Wherein, the Fresnel Lenses groove of multiple cambered surfaces of same radian, output face are provided on the plane of incidence of the concavees lens
For a complete arc.
Wherein, the plane of incidence of the concavees lens is a complete arc, and multiple cambered surfaces of same radian are provided in output face
Fresnel Lenses groove.
Wherein, the plane of incidence of the concavees lens is a complete arc, and output face is different radians but the cambered surface center of circle is identical
The Fresnel Lenses groove of multiple cambered surfaces.
Wherein, the plane of incidence of the concavees lens is a complete arc, and output face is identical radian measure but the cambered surface center of circle is distributed not
The Fresnel Lenses groove of same multiple cambered surfaces.
Said lens material is polymethyl methacrylate, polyvinyl chloride, polyethylene, polypropylene, epoxy resin, phenolic aldehyde modeling
Material or formaldehyde resin.
The diameter of said lens is 70mm-150mm, and pressure focal length is 50-150mm, the burnt a diameter of 10- in area
40mm, burnt section length are 30-120 mm.
Said lens are processed as die casting, pressure injection, drop stamping or machine tooling molding.
The polyhedron concavees lens of pressure wave focusing on Medical Devices of the present invention, by light the plane of incidence or
Fresnel Lenses tooth is set in output face, solves the problems, such as that the pressure conduction caused by lens thickness difference is lost, saves
The making material of mirror improves the efficiency of pressure transmission, effectively can generate variation to the focal spot and focal length of pressure focusing.
Description of the drawings
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 double concave lens light perspectives shown in Fig. 1 focus schematic diagram；
Fig. 4 is that the polyhedron concavees lens cross-section structure of pressure wave focusing on Medical Devices described in the embodiment of the present invention one shows
It is intended to；
Fig. 5 is concavees lens vertical view shown in Fig. 4；
Fig. 6 is that concavees lens light perspectives shown in Fig. 4 focus schematic diagram；
Fig. 7 is that the polyhedron concavees lens cross-section structure of pressure wave focusing on Medical Devices described in the embodiment of the present invention two shows
It is intended to；
Fig. 8 is concavees lens vertical view shown in Fig. 7；
Fig. 9 is that concavees lens light perspectives shown in Fig. 7 focus schematic diagram；
Figure 10 is the polyhedron concavees lens cross-section structure of pressure wave focusing on Medical Devices described in the embodiment of the present invention three
Schematic diagram；
Figure 11 is concavees lens vertical view shown in Figure 10；
Figure 12 is that concavees lens light perspectives shown in Figure 10 focus schematic diagram.
Figure 13 is the polyhedron concavees lens cross-section structure of pressure wave focusing on Medical Devices described in the embodiment of the present invention four
Schematic diagram；
Figure 14 is concavees lens vertical view shown in Figure 13；
Figure 15 is that concavees lens light perspectives shown in Figure 13 focus schematic diagram.
Specific implementation mode
In the following, in conjunction with attached drawing, the present invention will be described in detail.
The polyhedron concavees lens for present embodiments providing pressure wave focusing on a kind of Medical Devices, include the incidence of light
The output face in face and light is especially provided with Fresnel Lenses groove on the plane of incidence or output face.
Fresnel Lenses（Fresnel lens）Mostly it is by polyolefine material injection pressure for the prior art, also known as Fresnel lens
Made of thin slice, also there is glass to make, lens surface one side is smooth surface, the ascending concentric circles of another side imprinting, it
Texture be that the interference according to light and disturbing is penetrated and relative sensitivity and receiving angle requirement design.
Fresnel Lenses is chiefly used in not being very high occasion to required precision, such as slide projector, film for making convex lens
Magnifying glass, infrared detector etc..Compared with common convex lens, the corner that Fresnel Lenses can overcome common convex lens to occur becomes
Secretly, fuzzy phenomenon, this is because the refraction of light only occurs in the interface of medium, since common convex lens sheet is thicker, light is general
The part that logical convex lens cathetus is propagated can make light attenuation.Fresnel lens can then remove light and be propagated in lens cathetus
Part, only retain the curved surface reflected, not only save a large amount of making material, and have also achieved and ordinary lens phase
Same spotlight effect.Fresnel Lenses appear as it is a piece of have countless multiple concentric circles lines, the i.e. glass of Fresnel zone, but can
Achieve the effect that convex lens, if projection source is directional light, the consistent of image brightness throughout can be kept after convergence projection.
It says that Fresnel Lenses has equidistant groove in the side of lens, by these grooves, can reach to specifying spectrum
The light belt of range plays the role of reflection or refraction.
The convex lens that Fresnel Lenses principle makes can be very thin, it is possible to reduce making material has many purposes.But
It is that but always by Fresnel Lenses principle for making concavees lens, more nobody expects such concavees lens being used for nobody
On the therapeutic equipment of shock wave, it is defeated that plane of light incidence or light in concavees lens is arranged in Fresnel Lenses groove by the present embodiment
On appearing.It not only solves the problems, such as that the pressure conduction caused by lens thickness difference is lost, saves the making material of lens, carry
The high efficiency of pressure transmission, and the focal spot and focal length focused to pressure generates also has significant variation.
The polyhedron concavees lens of pressure wave focusing on the present embodiment Medical Devices and Fresnel Lenses principle it is described
Lens the difference is that：Lens described in Fresnel Lenses principle are used for convex lens, and poly focal plane is same radian, and this reality
The example concavees lens are applied, according to performance needs, concavees lens focusing surface can be same radian, can also be concentric different arcs
Degree, in order to which the lens with Fresnel Lenses principle are distinguished, so embodiment uses facted lens term.
Embodiment one
As Figure 4-Figure 6, a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices are present embodiments provided, it should
The Fresnel Lenses groove 12 of multiple cambered surfaces of same radian R1 is provided on the plane of incidence 11 of concavees lens, output face 13 is one complete
Arc.Then each the transmission distance of light in lens is very short, and the loss of lens greatly reduces.
Embodiment two
As Figure 7-9, a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices are present embodiments provided, it should
The plane of incidence 21 of concavees lens is a complete arc, and the Fresnel Lenses tooth of multiple cambered surfaces of same radian is provided in output face 22
Line 23.Output face is made of multiple cambered surfaces of same arc, can improve the transmission efficiency of pressure, due to the half of radian R2-R5 etc.
The diameter center of circle is in a point, therefore this lens can equally reduce the loss of lens.
Embodiment three
As shown in figs. 10-12, a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices are present embodiments provided,
The plane of incidence 31 of the concavees lens is a complete arc, and output face 32 is different radians and the cambered surface center of circle also different multiple cambered surfaces
Fresnel Lenses groove 33.Since output face 32 is the radian cambered surface of multiple and different radius R2-R5 etc., and all cambered surfaces are justified
The characteristics of heart is different, this lens are can to obtain the larger focal zone of area or the areas Cheng Jiao, focal spot.As it can be seen that embodiment
The focal spot and focal length that the concavees lens focus pressure produce variation.
Example IV
As illustrated in figs. 13-15, a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices are present embodiments provided,
The plane of incidence 41 of the concavees lens is a complete arc, and output face 42 is with radian and the cambered surface center of circle also different multiple cambered surfaces
Fresnel Lenses groove 43.Since output face 42 is the radian cambered surface of multiple same radius R2, and the distribution of all cambered surface centers of circle is not
Together, the characteristics of this lens, which is same example three, can equally obtain the larger focal zone of area or the areas Cheng Jiao, focal spot.It can
See, implements concavees lens focus pressure described in this example focal spot and focal length and produce variation.
Concavees lens described in the present embodiment, lens material can be：Polymethyl methacrylate（PMMA is commonly called as organic glass
Glass）, polyvinyl chloride（PVC）, polyethylene（PE）, polypropylene（PP）Or it is epoxy resin, phenoplasts, formaldehyde resin etc..
Lens diameter and focal length, burnt area size needs determine according to purposes, such as general diameter is from 70mm-
150mm, pressure focal length are 30-120 mm in 50-150mm, burnt area's diameter 10-40mm, burnt section length, above-mentioned each scale ginseng
Number needs depending on actual conditions, can be adapted for any size.The processing of lens can be die casting, pressure injection, drop stamping, machine
The methods of bed processing.
In conclusion on Medical Devices described in the present embodiment pressure wave focusing polyhedron concavees lens, by light
The plane of incidence or output face on Fresnel Lenses tooth is set, solve caused by lens thickness difference pressure conduction loss and ask
Topic, saves the making material of lens, improves the efficiency of pressure transmission, the focal spot and focal length that can be effectively focused to pressure
Generate variation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of polyhedron concavees lens of pressure wave focusing on Medical Devices, the concavees lens are the concave concave-concave in two sides
Lens include the output face of the plane of incidence and light of light, which is characterized in that arbitrary in the plane of incidence or the output face
It is a complete arc on one side, Fresnel Lenses groove is arranged in another side.
2. polyhedron concavees lens according to claim 1, which is characterized in that be provided with same arc on the plane of incidence of the concavees lens
The Fresnel Lenses groove of multiple cambered surfaces of degree, output face are a complete arc.
3. polyhedron concavees lens according to claim 1, which is characterized in that the plane of incidence of the concavees lens is a complete arc
Shape is provided with different radians, the Fresnel Lenses groove of multiple cambered surfaces of phase concentric in output face.
4. polyhedron concavees lens according to claim 1, which is characterized in that the plane of incidence of the concavees lens is a complete arc
Shape, output face are the Fresnel Lenses groove that different radians but cambered surface, the center of circle are distributed also different multiple cambered surfaces.
5. polyhedron concavees lens according to claim 1, which is characterized in that the plane of incidence of the concavees lens is a complete arc
Shape, output face are the Fresnel Lenses groove that identical radian measure but the cambered surface center of circle are distributed different multiple cambered surfaces.
6. the polyhedron concavees lens according to claim 1 to 5 any one, which is characterized in that the lens material is poly-
Methyl methacrylate, polyvinyl chloride, polyethylene, polypropylene, epoxy resin, phenoplasts or formaldehyde resin.
7. the polyhedron concavees lens according to claim 1 to 5 any one, which is characterized in that the lens are processed as
Die casting, pressure injection, drop stamping or machine tooling molding.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN105676324A CN105676324A (en) | 2016-06-15 |
| CN105676324B true CN105676324B (en) | 2018-10-09 |
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Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05277105A (en) * | 1992-04-01 | 1993-10-26 | Aloka Co Ltd | Probe for ultrasonic diagnostic device |
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2016
- 2016-03-16 CN CN201610150061.5A patent/CN105676324B/en active Active
Patent Citations (5)
| 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 |
| 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 |
|---|
| 准平板型声透镜的聚焦原理及其计算;张福成等;《陕西师范大学学报自然科学版》;19821231;第45-55页 * |
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| CN105676324A (en) | 2016-06-15 |
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