CN105963069A - Lacrimal sac locator - Google Patents
Lacrimal sac locator Download PDFInfo
- Publication number
- CN105963069A CN105963069A CN201610259404.1A CN201610259404A CN105963069A CN 105963069 A CN105963069 A CN 105963069A CN 201610259404 A CN201610259404 A CN 201610259404A CN 105963069 A CN105963069 A CN 105963069A
- Authority
- CN
- China
- Prior art keywords
- localizer
- lachrymal sac
- lacrimal
- sac
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
Abstract
The invention relates to a lacrimal sac locator. The lacrimal sac locator comprises a lacrimal passage probe, wherein optical fibers are arranged in the lacrimal passage probe and connected with a laser transmitter, the laser transmitter emits light which is still visible after penetrating through bone wall and nasal mucosa, and the light is transmitted to the optical fibers and then emitted out through the optical fibers. When the lacrimal sac locator is used, the lacrimal passage probe is inserted into the lacrimal passage from the lacrimal point, and reaches the bone wall beside the lacrimal sac, an electrifying switch is turned on, a power supply provides electricity for a drive circuit, the drive circuit drives the laser transmitter to emit light which is then transmitted through the optical fibers and emitted out through the optical fibers, at the time, the light-emitting point penetrating through the bone wall and the nasal mucosa can be observed from the nasal cavity, therefore, the operative region is accurately positioned, thus the blindness is reduced, and finally, the operation efficiency and success rate are improved.
Description
Technical field
The present invention relates to medical equipment, in particular to a kind of lachrymal sac localizer.
Background technology
Lacrimal Passage Block (lacrimal duct obstruction diseases, LDOD) is harm people
The common ocular disease that class is healthy, China's obstructed lacrimal passage prevalence about 4.47%.Obstructed lacrimal passage is not only
Affecting that eye is comfortable and quality of life, also result in chronic dacryocystitis, chronic dacryocystitis also can secondary angle
The complication such as film inflammation, acute dacryocystitis, orbital cellulitis, are also cataract simultaneously, glaucoma etc.
The contraindication of intraocular surgery.Along with the raising of people's quality of life, the preventing and treating of LDOD has become ophthalmology
One of doctor and research worker issues that need special attention.
The treatment of obstructed lacrimal passage at present is mainly operative treatment, for chronic dacryocystitis and obstruction of naso lacrimal duct,
Dacryocystorhinostomy is chief surgical mode.Along with nasal endoscopes and the development of Minimally Invasive Surgery, nasal endoscopes
Lower dacryocystorhinostomy (endoscopic endonasal dacryocystorhinostomy, EE-DCR)
Because there is no facia incision, not affecting the appearance and gradually instead of the percutaneous from outside lachrymal sac nasal cavity kiss of classics
Close art, become treatment chronic dacryocystitis and the chief surgical mode of obstruction of naso lacrimal duct.
Having main steps that in EE-DCR operation opens nasal mucosa at nasal cavity corresponding site, stings except bone wall,
Expose lachrymal sac, open lachrymal sac mucosa and be allowed to communicate with nasal cavity.During whole, how to be accurately positioned
The nasal mucosa of lachrymal sac corresponding site is most important.Accurate location be of value to minimizing wound, avoid via,
Improve success rate of operation.Current location mode mainly utilizes tweezers coarse localization, tweezers one end to put
Being placed in skin surface lachrymal sac district, other end position nasal mucosa is corresponding operative region, another kind side
Method is according to nasal cavity Anatomical orientation, and normal lachrymal sac district should be positioned at the front lower place of middle nasal concha root.But these are two years old
The mode of kind all positions roughly, has the patients such as variation especially for lachrymal sac displacement, nasal cavity structure after wound,
Lachrymal sac is difficult to position one of difficult point becoming operation.
Summary of the invention
Present invention aim to overcome that above-mentioned the deficiencies in the prior art provide a kind of lachrymal sac localizer, should
Lachrymal sac localizer, the localizer probe of this lachrymal sac is provided with light source, and probe inserts lacrimal passage from lacrimal point, arrives
The bone wall that lachrymal sac is other, it is possible to see the luminous point penetrating bone wall and nasal mucosa at nasal cavity, thus accurately fixed
Position operative region, improves procedure efficiency and success rate of operation.
Realizing the object of the invention and employed technical scheme comprise that a kind of lachrymal sac localizer, it includes lacrimal probe,
Being provided with optical fiber in lacrimal probe, optical fiber connects has generating laser, described generating laser to send and pass through
Light the most visual after bone wall and nasal mucosa, described optical transport to optical fiber is also outwards launched by optical fiber.
Further, described lachrymal sac localizer also includes that handle, handle are connected with described lacrimal probe,
Described generating laser is located in handle.
Further, being additionally provided with power supply in described handle, described power supply passes through power-on switch with described
Generating laser connects, and described power-on switch is embedded in the appearance of handle.
In technique scheme, described generating laser is LASER Light Source.
Further, described LASER Light Source is laser diode.
Further, described laser diode is the red laser diode between 620-760nm.
In technique scheme, described red laser diode connects drive circuit.
Further, described drive circuit connects power supply.
Further, described drive circuit is LT3092 chip, and described power supply is circumscribed USB interface
Or 5V DC source.
Further, between described drive circuit and described circumscribed USB interface or 5V DC source
Connect the voltage having for the voltage that USB interface or 5V DC source export being converted to 3.3V voltage
Manostat.
The operation principle of lachrymal sac localizer of the present invention is as follows:
Lacrimal probe is inserted lacrimal passage from lacrimal point, arrives the bone wall that lachrymal sac is other, open power-on switch, electricity
Source is drive circuitry, and drive circuit driving laser transmitter projects goes out light and through fiber-optic transfer and leads to
Cross optical fiber outwards to launch, now can see at nasal cavity and penetrate the luminous point of bone wall and nasal mucosa,
It is accurately positioned operative region, thus reduces blindness, improve procedure efficiency and success rate of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of lachrymal sac localizer of the present invention.
Fig. 2 is the circuit diagram of embodiment circuits for driving.
Fig. 3 is the circuit diagram that USB used by embodiment powers.
Fig. 4 is the circuit diagram that 5V DC source used by embodiment is powered.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, lachrymal sac localizer of the present invention includes lacrimal probe 1 and handle 2, lacrimal probe 1
It is connected with handle 2.It is provided with optical fiber (not shown) in lacrimal probe 1, is provided with sharp in handle 2
Optical transmitting set 3 and power supply 5, generating laser 3 is connected with power supply 5, and optical fiber is with generating laser 3 even
Connect.
Used by the present invention, generating laser 3 can send the light penetrating bone wall and nasal mucosa, and optical transport is extremely
Optical fiber is also gone out by fibre optical transmission.
Used by the present invention, generating laser 3 is LASER Light Source, and in the present embodiment, LASER Light Source is with 650nm
Illustrate as a example by red laser diode.
When 650nm red laser diode normally works, Output optical power is 10mW, and threshold current is
40mA (25 DEG C), operating current is 110mA to the maximum.The outfan of 650nm red laser diode
Use 2.5mm universal optical fiber interface adapter, can be attached with standard single mode or multimode fibre.
In the present embodiment, 650nm red laser diode uses the mode of constant-current driving, such as Fig. 2 institute
Showing, wherein circuits for driving is chip LT3092, and chip LT3092 is high precisely current source, defeated
The maximum going out electric current is 200mA, fully meets the driving demand of LASER Light Source.Chip LT3092
The electric current I of outputoutInput 650nm red laser diode LD, thus drive 650nm red laser
Diode LD sends the light of 650nm.
Chip LT3092 connects external USB interface or+5V DC source, due to chip LT3092
Required running voltage is 3.3V, it is therefore desirable to external USB interface or+5V DC source are exported
5V voltage realizes the power supply to chip LT3092 after being converted to the voltage of 3.3V, and physical circuit is as follows:
Use the circuit powered of circumscribed USB as it is shown on figure 3, VBSU defeated in external USB interface
Outlet is connected a LF33CV Voltagre regulator with the power input UCC of chip LT3092,
LF33CV Voltagre regulator inputs after the 5V voltage that VBSU exports is converted to 3.3V voltage
To the UCC interface of chip LT3092, power for chip LT3092.
Use the circuit that+5V DC source is directly powered as shown in Figure 4 ,+5V DC source and chip
The power input UCC of LT3092 connects a LF33CV Voltagre regulator, and LF33CV voltage is steady
Depressor is input to chip after the 5V voltage that+5V DC source exports is converted to 3.3V voltage
The UCC interface of LT3092, powers for chip LT3092.
For the ease of controlling USB interface or the voltage of+5V DC source output, it is also possible in outside
USB interface arranges a power-on switch between delivery outlet and the LF33CV Voltagre regulator of VBSU
SW4, or a switch energising is set between+5V DC source and LF33CV Voltagre regulator
SW4.For the ease of operation, power-on switch SW4 can be embedded in the appearance of handle.
In order to avoid interference signal, obtain pure 3.3V direct current supply, it is also possible to by LF33CV electricity
Pressure manostat connects a LC filter circuit, and LC filter circuit is that those skilled in the art are for filtering
The technological means commonly used during ripple, here is omitted.
It is strong that the present invention have selected penetrance, is difficult to be absorbed by hemocyte, and the wavelength of luminous concentration is
The laser that between 620-760nm, red laser diode sends as cold light source, the light of this wavelength concentrate and
Harmless, the luminous point so seen at nasal cavity is concentrated and is not dissipated, and is beneficial in operation accurately see
Observe the position of luminous point, from the precise positioning to lachrymal sac position, and whole device contact human body parts
For at clinical right lacrimal probe, to eyeball not damaged.Furthermore, it is possible to laser fiber is extended,
Handle is put under operating-table and maybe will make hand-held tiny devices and all be positioned on operating-table, pass through
Switch on operation handle, operator can be according to needing to open or close at any time localizer in art.
Claims (10)
1. a lachrymal sac localizer, it is characterised in that: include lacrimal probe, in lacrimal probe, be provided with light
Fibre, optical fiber connect have generating laser, described generating laser send through after bone wall and nasal mucosa still
Visual light, described optical transport to optical fiber is also outwards launched by optical fiber.
Lachrymal sac localizer the most according to claim 1, it is characterised in that: also include handle, hands
Handle is connected with described lacrimal probe, and described generating laser is located in handle.
Lachrymal sac localizer the most according to claim 2, it is characterised in that: also set in described handle
Having power supply, described power supply is connected with described generating laser by power-on switch, and described power-on switch is embedding
In the appearance of handle.
Lachrymal sac localizer the most according to claim 3, it is characterised in that: described generating laser
For LASER Light Source.
Lachrymal sac localizer the most according to claim 4, it is characterised in that: described LASER Light Source is
Laser diode.
Lachrymal sac localizer the most according to claim 5, it is characterised in that: described laser diode
For the red laser diode between 620-760nm.
Lachrymal sac localizer the most according to claim 6, it is characterised in that: described red laser two
Pole pipe connects drive circuit.
Lachrymal sac localizer the most according to claim 7, it is characterised in that: described drive circuit is even
It is connected to power supply.
9. according to the lachrymal sac localizer described in claim 7 or 8, it is characterised in that: described driving electricity
Road is LT3092 chip, and described power supply is circumscribed USB interface or 5V DC source.
Lachrymal sac localizer the most according to claim 9, it is characterised in that: described drive circuit with
Connect between described circumscribed USB interface or 5V DC source and have for by USB interface or 5V direct current
The voltage of power supply output is converted to the Voltagre regulator of 3.3V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259404.1A CN105963069A (en) | 2016-04-25 | 2016-04-25 | Lacrimal sac locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259404.1A CN105963069A (en) | 2016-04-25 | 2016-04-25 | Lacrimal sac locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105963069A true CN105963069A (en) | 2016-09-28 |
Family
ID=56994707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610259404.1A Pending CN105963069A (en) | 2016-04-25 | 2016-04-25 | Lacrimal sac locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105963069A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117125A (en) * | 1993-09-07 | 1996-02-21 | 中国科学院上海光学精密机械研究所 | Method and system for generating strong illumination using semiconductor laser |
| CN1602168A (en) * | 2001-06-19 | 2005-03-30 | 宾夕法尼亚大学理事会 | Optical guidance system for invasive catheter placement |
| CN1771012A (en) * | 2003-04-10 | 2006-05-10 | 塞拉莫普泰克工业公司 | Device and method for dacryocystorhinostomy |
| US20070135914A1 (en) * | 2001-06-11 | 2007-06-14 | Herrick Robert S Ii | Implant capable of forming a differential image in an eye and methods of inserting and locating same |
| CN2928053Y (en) * | 2006-06-20 | 2007-08-01 | 刘国军 | Positioning device for nasal cavity dacryocyst |
| CN101610708A (en) * | 2006-12-29 | 2009-12-23 | 通用检查技术公司 | Illumination for endoscope |
| CN204219099U (en) * | 2014-09-30 | 2015-03-25 | 浦易（上海）生物技术有限公司 | A kind of can be degradable the lacrimal canal bracket of medicine carrying and implant system |
| CN104758120A (en) * | 2015-04-16 | 2015-07-08 | 韩泉洪 | Sclera jacking and pressing device with aiming light |
| CN105020648A (en) * | 2015-06-24 | 2015-11-04 | 江苏大学 | Optical fiber transmission lighting device |
-
2016
- 2016-04-25 CN CN201610259404.1A patent/CN105963069A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117125A (en) * | 1993-09-07 | 1996-02-21 | 中国科学院上海光学精密机械研究所 | Method and system for generating strong illumination using semiconductor laser |
| US20070135914A1 (en) * | 2001-06-11 | 2007-06-14 | Herrick Robert S Ii | Implant capable of forming a differential image in an eye and methods of inserting and locating same |
| CN1602168A (en) * | 2001-06-19 | 2005-03-30 | 宾夕法尼亚大学理事会 | Optical guidance system for invasive catheter placement |
| CN1771012A (en) * | 2003-04-10 | 2006-05-10 | 塞拉莫普泰克工业公司 | Device and method for dacryocystorhinostomy |
| CN2928053Y (en) * | 2006-06-20 | 2007-08-01 | 刘国军 | Positioning device for nasal cavity dacryocyst |
| CN101610708A (en) * | 2006-12-29 | 2009-12-23 | 通用检查技术公司 | Illumination for endoscope |
| CN204219099U (en) * | 2014-09-30 | 2015-03-25 | 浦易（上海）生物技术有限公司 | A kind of can be degradable the lacrimal canal bracket of medicine carrying and implant system |
| CN104758120A (en) * | 2015-04-16 | 2015-07-08 | 韩泉洪 | Sclera jacking and pressing device with aiming light |
| CN105020648A (en) * | 2015-06-24 | 2015-11-04 | 江苏大学 | Optical fiber transmission lighting device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
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| RJ01 | Rejection of invention patent application after publication |