CN1731004A - Headlight for medical use - Google Patents
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- CN1731004A CN1731004A CNA2005100414050A CN200510041405A CN1731004A CN 1731004 A CN1731004 A CN 1731004A CN A2005100414050 A CNA2005100414050 A CN A2005100414050A CN 200510041405 A CN200510041405 A CN 200510041405A CN 1731004 A CN1731004 A CN 1731004A
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- camera lens
- lamp
- headlight
- medical use
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Abstract
The present invention relates to one kind of medical lamp in improved structure and belongs to the field of medical equipment technology. The medical lamp includes headband, lens in front of the headband and power source circuit. The lens has L-shaped lens barrel, light source and heat sink device in the upper part and light transmission unit in the lower part. The light source and heat sink device consists of lamp cup, LED lamp connected to the power source circuit, metal plate for fixing the LED lamp, heat sink in the back of the metal plate, and mini fan. The light transmission unit consists of the first convex lens below the lamp cup, reflector in the bent of the lens barrel, and the second convex lens. Compared with available technology, the present invention has very low power consumption, cold light source characteristic, long service life and other obvious advantages.
Description
Technical field
The present invention relates to a kind of lighting for medical use device, especially a kind of architecture advances of headlight for medical use belongs to technical field of medical instruments.
Background technology
Good lighting condition is most important for operation.Except special-purpose operation such as shadowless lamp lighting device, easy to carry, use headlight for medical use development flexibly to receive publicity always.
The applying date is that 1988.08.01, application number are that the Chinese patent of 88217391.X discloses a kind of head lamp that is used for medical operating.Its characteristics are that the lamp source is the bulb of position adjustable, at the other magnifying glass that is provided with position adjustable of bulb.Practice shows, this head lamp can not satisfy comprehensively to headlight for medical use designing requirement: brightness is enough, soft does not dodge, and also will have the characteristic of " cold light source " simultaneously---promptly to the not influence of temperature of irradiation area.
The nineties in last century, above-mentioned " bright " is resolved by the technical scheme that passes light by optical fiber with the contradiction of " cold ".The applying date is that 1994.02.03, application number are that 94203072.9 Chinese patent has provided a kind of medical operation head lamp, and it is made of cold light source, fibre-optic catheter, light source camera lens and head lamp holder.Its cold light source is to be provided with a circuit of light sources in a cold light source housing, light source is connecting a fibre-optic catheter by a light source input plug, fibre-optic catheter is connecting a light source camera lens by a light source output plug, front portion at fibre-optic catheter is connecting a head lamp holder by clamp, is provided with a camera adjusting screw between head lamp holder and the light source camera lens.Head lamp holder is worn on doctor's the head during use, thereby has solved the shadowless lamp problem of operation current political situation portion insufficient light down, operation can be carried out smoothly.Soon afterwards, the applying date is that May 21, the patent No. in 1996 are that 5769523 United States Patent (USP) also discloses the typical structure that passes the light headlight for medical use by optical fiber.The head lamp of this operation usefulness mainly by can wear overhead band, be fixed on the camera lens of band front end, external light source and light is made of the optical fiber that light source causes camera lens, its advantage is that light shines the concern operative region naturally with doctor's headwork, and the light that optical fiber passes to camera lens has " cold light source " effect, can not influence the temperature of irradiated area, especially this patent can realize shining with predetermined spot diameter the beneficial effect of operative region by the adjustment to the lens optical device.
But,, also brought some new problems though this type of solves the contradiction of " bright " and " cold " preferably by the head lamp that optical fiber passes light.At first, the connection of optical fiber has certain influence to operation technique; Secondly, light is decayed unavoidably through Optical Fiber Transmission, thereby needs more powerful light source; In addition, arrive specific region, the complex structure of Optical devices for light focusing with Optical Fiber Transmission.
The beginning of this century, the applying date is that 2001.03.08, application number are that the Chinese patent of 01212706.X discloses a kind of Halogen lamp LED head lamp, it is made up of adjustable headband, jointed coupling, lamp holder, lead, transformer and attaching plug, lamp holder is made up of lamp cover, lamp socket and cold light type Halogen lamp LED, has the characteristics of lamp mirror unification.It is introduced that this head lamp has solved existing headlight for medical use will constantly adjust the reflection frontal mirror, and the problem of the hardship that all will be toasted of doctor and patient, and hot spot is concentrated, brightness height, little power consumption can comprehensive adjusting irradiating angles, use when being applicable to section office's diagnosis focus such as hals,Nasen und Ohrenheilkunde and operation.Yet during as light source for surgery, power demand is generally about 100W with this Halogen lamp LED of attempting to break away from the optical fiber constraint, in fact not only energy consumption is big, and heat dissipation problem can't solve, and can not satisfy the user demand of " cold light source ", and be difficult to satisfy the demand of AC/DC.
Because there is such or such problem respectively in prior art, therefore above-mentioned so far headlight for medical use is all applied.
Summary of the invention
The objective of the invention is to: at the problem that above prior art exists, propose that a kind of energy consumption is little, brightness is high, easy to carry, headlight for medical use, make it can obtain practical applying with cold light source characteristic.
The applicant recognizes: reaching the object of the invention needs to handle high brightness and a series of contradictions such as low energy consumption, high brightness and cold light source well, also will pass through reasonable structural design simultaneously, accomplishes small and exquisite, the dependable performance of volume.
Various light source technologies are investigated, are analyzed and necessary experiment after, the applicant notices, because LED (light emitting diode) illumination is continuous, light is soft, save electric energy, is therefore applied in fields such as decoration, cautions in recent years, becomes the cold light source that receives publicity gradually.And, along with the continuous progress of LED manufacturing process and the Application and Development of advanced luminescent material, the LED with enough brightness come out not long ago (25lm/W).If by rational lens construction design and power circuit design, might break away from optical fiber fully, produce the headlight for medical use of new generation that meets requirements of operation.
Through experiment repeatedly, formed the technical scheme of following headlight for medical use: this headlight for medical use contains camera lens, the power circuit of wearing overhead band, being placed in the band front end, the L-shaped socket shape of described camera lens, top fixed light source heat abstractor, light transmitting device is installed in the bottom; Described light source radiating device mainly by be fixed near the camera lens middle part lamp bowl, be positioned at LED lamp that lamp bowl center is electrically connected with power circuit, the metal substrate of fixed L ED lamp, be fixed on substrate back radiator, be placed near the mini-fan the radiator; Described light transmitting device mainly by be placed in first convex lens under the lamp bowl, be fixed on camera lens inflection place speculum, be placed in camera lens second convex lens bottom and constitute.
Like this, the bright soft light that LED sends is shone by first convex lens focus on the speculum of inflection place by the polymerization of lamp bowl, is changed direction after the total reflection, focuses on once more by second convex lens, from the luminous end ejaculation of camera lens bottom.As long as according to convex lens curvature, the distance of light source, lens rationally is set, and, the angular position of speculum is set rationally according to the angle of L shaped camera lens, can be with LED with suitable illumination radius injection to the operation zone.
Compared with prior art, the present invention has following remarkable advantage:
1, adopt LED only to need the power of 5-10W can produce bright soft light, very energy-conservation;
2, light can further be guaranteed the cold light source characteristic through containing the L shaped optic path of two convex lens and speculum, and helps the irradiation hot spot is controlled at required radius;
3, the air-cooled air-flow of vertical direction has no adverse effects to operation technique, not only can strengthen the cold light source characteristic, also helps to prolong the service life of LED;
4, compact conformation, volume is small and exquisite, and is easy to carry, uses flexibly.
In the above technical scheme, the comparatively desirable connected mode of band and camera lens is the fixing ball pivot socket that is electrically connected with power circuit of band front end, the plug that insertion is fixed on the camera lens, is electrically connected with LED in the socket.Like this, each that both can suitably regulate camera lens as required can plug and unplug camera lens again fast to angle, and be very flexible, convenient.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is a camera lens phantom among Fig. 1 embodiment
Fig. 3 is the structural representation of the light transmitting device of examples of implementation one.
Fig. 4 is the power circuit diagram of Fig. 1 embodiment.
The specific embodiment
Embodiment one
The headlight for medical use of present embodiment as shown in Figure 1, band 13 can be pricked and be worn on the head, the supply socket 14 of front end fixed band ball pivot, its interior metal contact chip connects power circuit by the cable that is coiled in the band 13.Camera lens 7 L-shaped socket shapes, fixedlying connected with plug 15 in the upper end, is plugged in the socket 14.During use, each that can regulate camera lens as required within the specific limits is to angle, so that aim at operative site; Not the time spent, can insert camera lens down fast, very flexible, convenient.
The internal structure of camera lens 7 as shown in Figure 2, the light source radiating device on top comprises near the lamp bowl 4 that is fixed on the camera lens middle part, the LED lamp 3 that is positioned at lamp bowl center, is electrically connected with power circuit by plug, the aluminium base 10 of fixed L ED lamp, be fixed on the rib radiator 12 at substrate 10 back sides, be placed in the mini-fan 11 of radiator top.The two halves of symmetry are made in the housing injection mo(u)lding of camera lens 7, and lamp bowl 8 is installed in the ring-shaped groove that involutory housing forms fixing.For vibration damping, aluminium base 10 is connected by foam-rubber cushion 9 and lamp bowl 8.The light transmitting device that is positioned at camera lens 7 bottoms comprises first convex lens 1 that are placed under the lamp bowl 8, is fixed on the speculum 5 of camera lens inflection place and is placed in camera lens 7 second convex lens 2 bottom.For the hot spot that makes irradiation has border clearly, thereby make the operation notice more concentrated, also be fixed with the grating 4 concentric between first convex lens 1 and the speculum 5 with optical axis.The fixed structure of first convex lens 1, grating 4 and lamp bowl 8 are roughly the same.
It is power supply that the headlight for medical use of present embodiment adopts lithium battery.Lithium battery is placed in the band 13, connects the Metal Contact sheet of front end ball pivot supply socket 14 by power circuit.
Power circuit comprises booster circuit and current-limiting circuit as shown in Figure 4.This power supply essence is the DC-to-dc modular converter, and its function is to adopt boost mode, the low pressure (4.2V) of lithium battery is changed high pressure (8.5V), and output end current is controlled, and output current is controlled at about 750mA, to satisfy user demand.
Booster circuit mainly is made up of the chip LTC1871 that boosts, metal-oxide-semiconductor AW, energy storage inductor L1 and output capacitance C8 in parallel, C9.The chip that boosts adopts the LTC1871 of the LIEAR company control of boosting, and this chip product input voltage range 2.5V-36V, static working current are 10uA, frequency adjustable.Drive end 7 pin of this chip that boosts connect the grid of metal-oxide-semiconductor, are used for the driven MOS pipe.The source electrode of metal-oxide-semiconductor connects positive source through energy storage inductor L1, simultaneously connect power cathode through output capacitance C8 in parallel, C9, the drain electrode of metal-oxide-semiconductor connects power cathode through sample resistance R22, and this circuit is adjusted dutycycle according to the size of voltage sampling signal, thus regulated output voltage.Chip 10 pin (SENSE) that boost are the current detecting pin, meet sampling resistor R22, detect the electric current that flows through metal-oxide-semiconductor in each pulse period, if detected electric current surpasses setting value, this circuit just enters guard mode, thereby reach the purpose of protection load.
Current-limiting circuit mainly is made of operational amplifier U1A (model is LT1800), positive- negative input end 3,4 pin of this operational amplifier are connected to flow measurement resistance R 5, R6 respectively, be used for detecting output current, surpass setting value as electric current, the 1 pin output high level of LT1800 is delivered to 3 pin of LTC1871, thereby reaches the purpose of control output current.This circuit is simple and practical, has self protective function, and is stable and reliable for performance.
After by band camera lens being worn on the head, the cold light that LED sends focuses on by first convex lens and grating and shines on the speculum of inflection place, is changed direction after the total reflection, focuses on once more by second convex lens, from the luminous end ejaculation of camera lens.As a result, can be 500---operation place outside 600 millimeters forms the field of illumination (aperture 6) of diameter 180, satisfies the needs of operation illumination fully, is highly suitable for such as using in the special medical environment such as FAMB.
Facts have proved, adopt the medical head mirror light of present embodiment bright soft, do not have stroboscopic phenomenon, colourity is good, save the energy, long service life does not influence environment temperature, and is pollution-free, and owing to adopt lithium battery is power supply, does not therefore have any external lead wire, can make things convenient for operation technique greatly.
In addition to the implementation, the present invention can also have other embodiments.For example, adopt common AC power, by the Metal Contact sheet of AC-DC change-over circuit box cupling band front end ball pivot supply socket.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. a headlight for medical use contains camera lens, the power circuit wearing overhead band, be placed in the band front end, the L-shaped socket shape of described camera lens, and top fixed light source and heat abstractor, light transmitting device is installed in the bottom; It is characterized in that: described light source radiating device mainly by be fixed near the camera lens middle part lamp bowl, be positioned at LED lamp that lamp bowl center is electrically connected with power circuit, the metal substrate of fixed L ED lamp, be fixed on substrate back radiator, be placed near the mini-fan the radiator; Described light transmitting device mainly by be placed in first convex lens under the lamp bowl, be fixed on camera lens inflection place speculum, be placed in camera lens second convex lens bottom and constitute.
2. according to the described headlight for medical use of claim 1, it is characterized in that: the fixing ball pivot socket that is electrically connected with power circuit of described band front end, insert the plug that is fixed on the camera lens upper end, is electrically connected with LED in the described socket.
3. according to the described headlight for medical use of claim 2, it is characterized in that: also be fixed with the grating concentric between described first convex lens and the speculum with optical axis.
4. according to claim 2 or 3 described headlight for medical use, it is characterized in that: described substrate is connected by foam-rubber cushion and lamp bowl.
5. according to the described headlight for medical use of claim 4, it is characterized in that: the housing of described camera lens is made the two halves of symmetry, and described lamp bowl, convex lens, grating are installed in the ring-shaped groove that involutory housing forms fixing respectively.
6. according to the described headlight for medical use of claim 5, it is characterized in that: described power supply is the lithium battery that is placed in the band, connect the Metal Contact sheet of front end ball pivot supply socket by power circuit, described power circuit comprises booster circuit and current-limiting circuit, and described booster circuit mainly is made up of the chip that boosts, metal-oxide-semiconductor, energy storage inductor and output capacitance; The grid of the driving termination metal-oxide-semiconductor of the described chip that boosts, the source electrode of described metal-oxide-semiconductor connects positive source through energy storage inductor, connects power cathode through output capacitance simultaneously, and the drain electrode of described metal-oxide-semiconductor connects power cathode through sample resistance; Described current-limiting circuit mainly is made of operational amplifier, and the positive-negative input end of described operational amplifier is connected to flow measurement resistance respectively, the boost feedback end of chip of output termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100414050A CN100432526C (en) | 2005-08-10 | 2005-08-10 | Headlight for medical use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100414050A CN100432526C (en) | 2005-08-10 | 2005-08-10 | Headlight for medical use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731004A true CN1731004A (en) | 2006-02-08 |
| CN100432526C CN100432526C (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100414050A Expired - Fee Related CN100432526C (en) | 2005-08-10 | 2005-08-10 | Headlight for medical use |
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| Country | Link |
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| CN (1) | CN100432526C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858490A (en) * | 2010-04-06 | 2010-10-13 | 杭州桐庐尖端内窥镜有限公司 | Head lamp |
| CN102959311A (en) * | 2010-09-24 | 2013-03-06 | 欧司朗有限公司 | Lighting module for light, light and method for mounting lighting module on light |
| CN106257131A (en) * | 2016-08-31 | 2016-12-28 | 上海宜山光电科技有限公司 | A kind of portable medical headlight illumination system |
| CN109723995A (en) * | 2017-10-31 | 2019-05-07 | 王龙 | A kind of headlight for medical use |
| DE112017007464B4 (en) | 2017-04-19 | 2023-06-29 | Taiyo Corporation | Lighting device that can be attached to the head |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2953003T3 (en) | 2018-10-04 | 2023-11-07 | Integra Lifesciences Corp | Head-worn methods and devices |
| USD901737S1 (en) | 2018-10-04 | 2020-11-10 | Integra Lifesciences Corporation | Wearable headgear device |
| USD884236S1 (en) | 2018-10-04 | 2020-05-12 | Integra Lifesciences Corporation | Wearable headgear device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516190A (en) * | 1983-12-29 | 1985-05-07 | Luxtec Corporation | Surgical headlamp |
| US4616257A (en) * | 1985-06-13 | 1986-10-07 | Luxtec Corporation | Headlight |
| US5769523A (en) * | 1994-07-28 | 1998-06-23 | Designs For Vision, Inc. | Surgical headlamp with dual aperture control |
| US5774271A (en) * | 1996-07-29 | 1998-06-30 | Welch Allyn, Inc. | Lamp assembly |
| US7153015B2 (en) * | 2001-12-31 | 2006-12-26 | Innovations In Optics, Inc. | Led white light optical system |
| US6752517B2 (en) * | 2002-02-06 | 2004-06-22 | Kohler Co. | Bathtub chromatherapy system |
-
2005
- 2005-08-10 CN CNB2005100414050A patent/CN100432526C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858490A (en) * | 2010-04-06 | 2010-10-13 | 杭州桐庐尖端内窥镜有限公司 | Head lamp |
| CN102959311A (en) * | 2010-09-24 | 2013-03-06 | 欧司朗有限公司 | Lighting module for light, light and method for mounting lighting module on light |
| CN106257131A (en) * | 2016-08-31 | 2016-12-28 | 上海宜山光电科技有限公司 | A kind of portable medical headlight illumination system |
| DE112017007464B4 (en) | 2017-04-19 | 2023-06-29 | Taiyo Corporation | Lighting device that can be attached to the head |
| CN109723995A (en) * | 2017-10-31 | 2019-05-07 | 王龙 | A kind of headlight for medical use |
| CN109723995B (en) * | 2017-10-31 | 2020-11-06 | 张丙坤 | Medical head lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100432526C (en) | 2008-11-12 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20120810 |