CN201284987Y - Operating lamp - Google Patents

Abstract

The utility model discloses an operating lamp, which comprises a reflection mirror, a light source and a transmission shade, wherein, the light source is arranged between the reflection mirror and the transmission shade; the inner surface of the reflection mirror comprises at least three sections of reflection curved surfaces that are formed by revolving the central line of different benchmark curved lines and converging the reflected light on the focus point; the transmission shade is arranged at the opening of the reflection mirror; and the distance between each focus point to the transmission shade is smaller than the distance between the focus point to the operation illuminating area. The quantity of the reflection curved surface is at least three, and the light that is converged on the focus point after being reflected by each reflection curved surface is emitted again, so that the emitted light can be uniformly irradiated in the operation illuminating area; moreover, the operating lamp has large irradiation depth and good shade-free effect; and at the same time, the operated part can be clearly seen under the lamp light, thereby improving the illuminating effect of the operation illuminating area.

Description

Operating lamp

Technical field

The utility model is about a kind of operating lamp,

Background technology

Operating lamp generally has one or more speculums, by speculum the light that light source sends is reflexed to operative region with contoured, must have high illumination, certain regulated illumination zone and certain illumination degree of depth at the light of operative region, and the deep enough dark cavity of patient that illuminates of light energy, has good no shadow effect, reduce the influence of doctor's head, hand and apparatus to the operation area illumination, the illumination wound will have good stereoscopic visual effect, makes medical skill can clearly differentiate, locate.

At present, be used in the operating lamp obtain to expect that the method for operative region illumination has following several:

1) in order to improve the no shadow effect of operative region, adopt a plurality of small reflectors and light source at the diverse location operative region that throws light on, but this operation lamp holder heaviness, regulate inconveniently, and produce a large amount of heat;

2) adopt single large-scale concave mirror to come operative region has evenly been thrown light in conjunction with the corrugated lens, still, because corrugated lens luminous energy transmitance is low, so the operating lamp efficiency of light energy utilization is low;

3) adopt single large-scale concave mirror and smooth clear plate glass or plastics, its speculum is general to be adopted or most of parabola or parabolical profile of class of adopting, most of light from the operating lamp mirror reflects is near parallel light, parallel rays focuses on the illumination plane of reference of operative region, thereby improves the operative region illumination uniformity.But, because the reflection ray of curved surface profile own is approximate parallel, close on the reflecting surface illumination at the field of illumination close region by speculum, cause a plurality of adjacent facets to repeat the same point of throwing light on like this, a plurality of adjacent facets reflection ray angle differences are less, be easy to generate a plurality of intensive progressive stacked shades for the wound details, the stereoscopic visual effect of operation illumination wound details is reduced.

Summary of the invention

Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of operating lamp that can improve the illuminating effect of operation field of illumination is provided.

The technical solution adopted for the present invention to solve the technical problems is: a kind of operating lamp, comprise speculum, light source and diffuser, light source places between speculum and the diffuser, the inner surface of speculum comprises that at least three sections form and make the reflecting curved surface of reflection ray outgoing post-concentration in focus by different datum curves around center line revolution, diffuser is located at the opening part of speculum, and each focus arrives the distance of operation field of illumination less than focus to the distance of diffuser.

Described each reflecting curved surface all is densely covered with plane mirror.The mirror limit of described each plane mirror all overlaps with the mirror limit of adjacent plane speculum.The relative light source of described each plane mirror has fixing angular interval in longitudinal and latitude direction.The summit of described each plane mirror is all on reflecting curved surface.

The invention has the beneficial effects as follows, reflecting curved surface has three at least, and each reflecting curved surface reflection ray outgoing post-concentration is dispersed after focus again, make the light of outgoing can be radiated at the operation field of illumination uniformly, and have the bigger illumination degree of depth and do not have the shadow effect preferably, operative site has more clearly third dimension under light simultaneously, has improved the illuminating effect in the operation field of illumination.

Description of drawings

Fig. 1 is the light path principle figure of present embodiment operating lamp;

Fig. 2 is the structural representation after speculum is attached with plane mirror;

Fig. 3 is the light path principle figure of the irradiating angle relation of each reflecting curved surface of reflection.

The specific embodiment

As shown in Figure 1 to Figure 3, the present embodiment operating lamp comprises speculum 2, light source 1 and diffuser 3, and light source 1 places on the center line of speculum 2, and diffuser 3 is located at the opening part of speculum 2, the light that light source 1 sends reflects through speculum 2, and shines the operation field of illumination by diffuser 3.The inner surface of speculum 2 comprises first reflecting curved surface 5, second reflecting curved surface 6 and the 3rd curved surface 7, first, second and third reflecting curved surface 5,6,7 is formed around the center line revolution by different datum curves, first, second and third reflecting curved surface 5,6,7 can be focused at light reflected near the operation field of illumination 4 that diffuses to again after the different focuses illumination plane of reference 11, and the distance of focus and diffuser is less than the distance of focus to the field of illumination of performing the operation, preferably focus vicinity diffuser.Diffuser 3 is as transparent face mask.

First, second and third reflecting curved surface 5,6,7 light reflected exit direction differences, and be focused near the diffuser 3 first, second and third focus 8,9,10 respectively, after assembling through first, second and third focus 8,9,10 again divergent irradiation near the operation field of illumination 4 of the illumination plane of reference 11 (this illumination plane of reference be best operative site, generally is about about 1 meter apart from diffuser 3); Wherein, the light of second reflecting curved surface, 6 reflections is formed with the uniform illumination focusing surface 12 of certain area at the illumination plane of reference 11, the light of first reflecting curved surface 5 reflection forms illumination focusing surface 14, the three reflecting curved surfaces 7 reflections uniformly at the following floor light plane of reference under the illumination plane of reference 11 13 light floor light plane of reference 15 on the illumination plane of reference 11 forms illumination focusing surface 16 uniformly.Certainly, the light of first reflecting curved surface, 5 reflections also is radiated at the show up plane of reference 11 and the last floor light plane of reference 15 simultaneously, the light that the light of second reflecting curved surface, 6 reflections also is radiated at the floor light plane of reference 15 and 7 reflections of the following floor light plane of reference 13, the three reflecting curved surfaces simultaneously also is radiated at the illumination plane of reference 11 and the following floor light plane of reference 13 simultaneously.

Because first, second and third focus 8,9,10 of first, second and third reflecting curved surface 5,6,7 reflection rays is all near preceding diffuser 3, each focal length operation field of illumination 4 is far away, according to geometrical principle, when throwing light on spot size on the needs adjusting operation field of illumination or the illumination plane of reference, only need change focal position (realizing) by a small margin by the position that changes light source 1, just can significantly regulate spot size, thereby make operating lamp have bigger regulated illumination zone.

Owing to even illumination is all arranged at each plane of reference 15,11,13, through the light of speculum 2 reflections, can improve the illumination uniformity that forms in operation field of illumination 4, simultaneously like this, make operation field of illumination 4 at vertical direction very big scope be arranged, operating lamp has the bigger illumination degree of depth.

As Fig. 2,, on first, second and third reflecting curved surface 5,6,7, form flakey speculum 18 with a large amount of (for example thousands of) facet speculums 17 in order further to improve the operating lamp illumination uniformity.Each facet speculum 17 has fixing angular interval 19 with respect to light source 1 on longitudinal and latitude direction, four summits of each facet speculum 17 are on the curved surface of speculum, perhaps each facet speculum all is the positive tangent plane through the curved surface of each point on the speculum curved surface, the summit of the facet speculum that four summits of facet speculum and four edges are adjacent respectively and limit overlap, and finally form the flakey speculum 18 of a closure.Because facet speculum 17 enormous amount, leading role's degree of the reflecting curved surface reflection ray of the reflection ray of each facet speculum 17 and former speculum only has minor alteration, there be not very big departing from, therefore the light major part of each facet mirror reflects can shine operation field of illumination 4, simultaneously small angle changes shines on the field of illumination and the illumination plane of reference reflection ray from different perspectives equably, makes operating lamp finally satisfy the evenly requirement of illumination.

In the surgical procedure, the head of surgical doctor is usually located at operating lamp below, because the speculum area is big, and each reflecting curved surface of speculum can both reflex to the field of illumination with light, so this operating lamp has good no shadow effect

Operating lamp not only will have does not have the shadow effect preferably, and will make surgical doctor observe details on each spatial level of illumination wound easily, clearly, and this just requires operating lamp that good stereoscopic visual effect will be arranged, and makes medical skill can clearly differentiate, locate.In order to produce stereoscopic visual effect, wound details illuminated in the operation will have obvious, sharp keen shade.As Fig. 3, because speculum adopted three reflecting curved surfaces 5,6,7, each reflecting curved surface is the point 23 of reflection ray 20,21,22 to the surround plane of reference 11 respectively, and the irradiating angle of reflection ray 20,21,22 is respectively angle A, B, C.Because the speculum area is big, there is significantly difference between irradiating angle A, B, the C, the shade that they produce on illuminated wound details also has significant difference, so this operating lamp can make surgical doctor differentiate the three-dimensional shape of operation details, has certain third dimension.

In the present embodiment, speculum has three reflecting curved surfaces, and certainly, speculum also can have the curved surface that is formed around the center line revolution by different datum curves more than three.Each reflecting curved surface of speculum can diffuse to the convergence of rays of reflection the operation field of illumination again after focus.

Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (5)

1. operating lamp, it is characterized in that: comprise speculum, light source and diffuser, light source places between speculum and the diffuser, the inner surface of speculum comprises that at least three sections form and make the reflecting curved surface of reflection ray outgoing post-concentration in focus by different datum curves around center line revolution, diffuser is located at the opening part of speculum, and each focus arrives the distance of operation field of illumination less than focus to the distance of diffuser.

2. operating lamp according to claim 1 is characterized in that: described each reflecting curved surface all is densely covered with plane mirror.

3. operating lamp according to claim 2 is characterized in that: the mirror limit of described each plane mirror all overlaps with the mirror limit of adjacent plane speculum.

4. operating lamp according to claim 3 is characterized in that: the relative light source of described each plane mirror has fixing angular interval in longitudinal and latitude direction.

5. operating lamp according to claim 4 is characterized in that: the summit of described each plane mirror is all on reflecting curved surface.

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