CN209018976U - Medical laser equipment indicates optically coupled system - Google Patents

Abstract

The utility model discloses a kind of medical laser equipments to indicate optically coupled system, and coupled system is made of laser alignment output end, dichroic mirror piece, instruction light source, instruction light source fixing frame, O-ring, mounting seat and fiber coupler.45 ° of dichroic mirror piece is tiltedly placed on the right side of laser alignment output end, laser output main optical path optical axis intersects with dichroic mirror piece center, with eyeglass angle at 45 °, it is mounting seat above dichroic mirror piece, O-ring is placed in mounting seat, instruction light source fixing frame is located above O-ring, it is fixed in mounting seat by three screws, three screws are uniformly arranged on the circumference of same diameter, fiber coupler is located at the right side of dichroic mirror piece, the SMA905 female of standard, the fixation for medical laser optical fiber are had on fiber coupler.The utility model structure is simple, compact, and component is few, and stability is good, realizes it will be seen that the technical issues of indicating to be optically coupled in invisible laser main optical path, solving various positioning bad for Minimally Invasive Surgery laser.

Description

Medical laser equipment indicates optically coupled system

[technical field]

The utility model relates to a kind of medical laser equipments to indicate optically coupled system.

[background technique]

Laser technology is twentieth century " most one of the invention of epoch-making significance ".With the design of laser medical equipment It is gradually improved with manufacture, has pushed medical specialty treatment to develop in depth and breadth towards fine, minimally invasive, especially laser technology and optical fiber The perfect combination of technology and endoscope has been greatly facilitated the progress of medicine and the leap of medical technology, and has become 21st century One of main power of minimally invasive medical development.

Absorb the fuel factor of generation strongly to infrared laser using hydrone, high-power infrared laser is used in biology In cutting tissue operation.Nd:YAG laser center output wavelength is 1.064um, is widely used in gynaecology's laparotomy ventrotomy, food Road, the interior of rectal neoplasm peep operation, Cholecystectomy, liver surgery etc..In the biography of the common silica fibre of this wave band Defeated efficiency is very high, can be used in endo-surgical.Bladder stone (Ho:YAG) output center wavelength is 2.1mm, The absorption coefficient of water is 6.19mm-1, has good water absorbability, penetration depth shallow and the characteristics such as impulse ejection, can crush The calculus of various chemical components, it is also very outstanding to complicated calculi therapy performances such as the hard calculus of quality, big individual calculus, it is rubble A kind of highest intracavitary rubble means of efficiency.In addition, Bladder stone is because of its " face face contact " and due to " miniature blasting power " the characteristics of It has a clear superiority, can disposably solve polyp package calculus, calculus concurrent narrow, huge gallstone, staghorn stone, ureter In upper section calculus, kidney the problems such as inferior calyx calculus, special composition calculus, therefore, it has also become the first choice of Urology Surgery expert is intracavitary broken Stone equipment.2.0 μm of Thulium lasers tissue biological learn reaction on have superperformance, it is shallow to biological tissue's penetration depth, vaporization and Coagulation result is good, to eye-safe, available fiber transmission, by the hemostasis of the vaporization cutting characteristic, Nd:YAG laser of CO2 laser The characteristics such as the tissue damage of effect and Bladder stone is small, physiology interference is few roll into one, and are a kind of surgeries for being rich in development prospect Surgical laser light source.Thulium lasers can provide continuous wave and impulse wave, the former cutting efficiency is high, be primarily adapted for use in prostate hand Art, the latter are primarily adapted for use in the accurate operations such as ureterostenosis and ankylurethria incision.

The above laser belongs to invisible laser, and when carrying out Minimally Invasive Surgery, operative doctor can not be accurately fixed shoot laser Positioned at the position performed the operation of needs, so need visible light as instruction light to guide positioning, with facilitate the use of operative doctor with And guarantee the accuracy and safety of operation.It indicates that light is positioned as the instruction of medical laser, needs to have with medical laser identical Optical path outgoing.The sharp combiner of two-way different wave length, most common solution are that the dichroic mirror placed by 45 ° realizes one The transmission of road laser, another way laser reflection, to realize that two-way laser is combined into one.During specific implementation, it is desirable that reflection swashs The position that light is incident on the dichroic mirror reflecting surface of 45 ° of placements needs, exit direction reflection after identical as transmission laser position It is identical as transmission laser direction.So the adjustment of reflection laser or transmission laser needs the tune of X/Y and θ x/ θ y four dimensions It is whole.Authorization Notice No. is the Chinese patent of CN202554108U, discloses laser instruction optically coupled device.The utility model is special A four-dimensional adjustment frame has been used to indicate that reflection laser, light carries out the adjustment of X/Y and θ x/ θ y four dimensions in benefit.

Adjustment frame volume is relatively large, and adjustment structure is mostly spring structure, and stability is poor.Coupled system uses multidimensional tune Whole frame can bring very big challenge to the stability of system.The present invention guarantees X/Y directional precision by machining accuracy, utilizes O The scheme that type circle elasticity carries out the adjustment of θ x/ θ y-dimension realizes it will be seen that indicating to be optically coupled in invisible laser main optical path, solution The technical issues of certainly various positioning bad for Minimally Invasive Surgery laser.

[summary of the invention]

The purpose of this utility model is that designing a set of medical laser instruction optically coupled system, it is applied to it will be seen that instruction The coupled system being optically coupled in invisible main optical path, mainly solving medical laser is invisible infrared light, bad fixed in operation The technical issues of position.The utility model is particularly suitable in the medical laser device of Minimally Invasive Surgery.

In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of medical laser instruction optically coupled system, Coupled system is by laser alignment output end, dichroic mirror piece, instruction light source, instruction light source fixing frame, O-ring, mounting seat and light Fine coupler.45 ° of dichroic mirror piece is tiltedly placed on the right side of laser alignment output end, and laser exports in main optical path optical axis and dichroic mirror piece Heart intersection, with eyeglass angle at 45 °, it is O-ring above mounting seat that dichroic mirror piece top, which is mounting seat, and instruction light source is fixed Frame is located above O-ring, is fixed in mounting seat by three screws, three screws are uniformly arranged in the circumference of same diameter On, fiber coupler is located at the right side of dichroic mirror piece, and the SMA905 female of standard is had on fiber coupler, is used for medical laser The fixation of optical fiber.Laser alignment output end shoot laser be invisible laser, wavelength can be 1064nm, 1940nm, 2050nm, Any one of 2100nm, 2940nm etc. can be transmitted from dichroic mirror piece, and indicate the visible light that light source issues, wavelength Range can be any one in 390nm~780nm, and the face reflection that reflectance coating can be plated by dichroic mirror piece imports main optical path In, it is coupled to together with medical laser in medical laser optical fiber by fiber coupler.

The utility model, which can be realized, imports instruction light in medical laser main optical path, couples together with invisible medical laser Into medical laser optical fiber, in Minimally Invasive Surgery can first open instruction light find the lesion tissue that need to be performed the operation, be then turned on medical treatment and swash Light is performed the operation, to guarantee the accuracy and safety of operation.

[Detailed description of the invention]

The structural schematic diagram of Fig. 1 the utility model.

[specific embodiment]

The utility model is described in detail below with reference to embodiment and attached drawing, but it is practical new that this should not be limited with this The protection scope of type:

As shown in Figure 1, medical laser equipment indicate optically coupled system, it is characterised in that: by laser alignment output end (1), Dichroic mirror piece (2), instruction light source (3), instruction light source fixing frame (4), O type circle (5), mounting seat (6) and fiber coupler coupling Clutch (7) composition.(2) 45 ° of dichroic mirror piece is tiltedly placed on the right side of laser alignment output end (1), and dichroic mirror piece (2) is directed at laser 45 ° of incident high transmittance films are plated in the face A for collimating output end, and the high instruction light high-reflecting film thoroughly of 45 ° of incident lasers is plated in the face B.Laser exports key light Road optical axis intersects with dichroic mirror piece (2) center, with dichroic mirror piece (2) angle at 45 °.It is mounting seat above dichroic mirror piece (2) (6), circular through hole and three threaded holes are machined in mounting seat (6), through hole center line is overlapped with instruction light light path light axis, and Guarantee the precision that center line intersects with the center in dichroic mirror piece (2) face B by machining, three threaded holes are evenly distributed in logical Hole center is on the circumference in the center of circle.O-ring (5) is placed in above mounting seat (6), O-ring (5) center line and mounting seat (6) through hole center line is overlapped.Indicate that light source fixing frame (4) are truncated cone-shaped, centre is circular hole, places instruction light source (3), is with outside Three through-holes, are uniformly distributed on circumference, and circle diameter is identical as mounting seat (6) threaded hole arrangement circle diameter.Pass through three A screw will indicate that photofixation frame (4) are fixed on mounting seat (6), different by the degree of three fastened by screw, can incite somebody to action Indicate that light optical path carries out the adjusting of θ x/ θ y both direction, fiber coupler (7) is located at the right side of dichroic mirror piece (2), optical fiber coupling The SMA905 female that standard is had in clutch (7), for connecting medical laser optical fiber.

Claims (4)

1. medical laser equipment indicate optically coupled system, it is characterised in that: by laser alignment output end (1), dichroic mirror piece (2), Indicate light source (3), instruction light source fixing frame (4), O-ring (5), mounting seat (6) and fiber coupler (7) composition, dichroic mirror (2) 45 ° of piece is tiltedly placed on the right side of laser alignment output end (1), is above dichroic mirror piece (2) mounting seat (6), and O-ring (5) is put It is placed in above mounting seat (6), instruction light source (3) is placed in instruction light source fixing frame (4), is fixed on mounting seat (6), light Fine coupler (7) is located at the right side of dichroic mirror piece (2), the SMA905 female of standard is had on fiber coupler (7), for connecting Medical laser optical fiber, instruction light source fixing frame (4) are fixed on mounting seat (6), and O-ring (5) is located between the two, utilize O The elasticity of type circle (5) carries out the adjustment of instruction light source (3) shoot laser bidimensional angle direction.

2. medical laser equipment according to claim 1 indicates optically coupled system, it is characterised in that: dichroic mirror piece (2) one Medical laser high transmittance film is plated in face, and another side plates the high instruction light high-reflecting film thoroughly of medical laser, laser alignment output end (1) shoot laser Optical axis and fiber coupler (7) optical axis coincidence after dichroic mirror piece (2).

3. medical laser equipment according to claim 1 indicates optically coupled system, it is characterised in that: instruction light source (3) hair Visible wavelength range out is any one in 390nm~780nm, from light path light axis and light after dichroic mirror piece (2) reflection Fine coupler (7) optical axis coincidence.

4. medical laser equipment according to claim 1 indicates optically coupled system, it is characterised in that: fiber coupler (7) With SMA905 female, medical laser optical fiber can be directly connected to.