CN201179111Y - Laser side-irradiation optical fiber knife head for minimally invasive operation - Google Patents
Laser side-irradiation optical fiber knife head for minimally invasive operation Download PDFInfo
- Publication number
- CN201179111Y CN201179111Y CNU2008200743610U CN200820074361U CN201179111Y CN 201179111 Y CN201179111 Y CN 201179111Y CN U2008200743610 U CNU2008200743610 U CN U2008200743610U CN 200820074361 U CN200820074361 U CN 200820074361U CN 201179111 Y CN201179111 Y CN 201179111Y
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Abstract
The utility model relates to a laser side transmitting optical fiber scalpel head for a minimally invasive operation, which comprises an optical fiber, a reflecting glass, a quartz sleeve pipe and a protecting layer, wherein, the fiber core end surface of the optical fiber is a plane, the reflecting surface of the reflecting glass is a concave surface or a plane, an included angle of the reflecting surface and the axial line of the optical fiber is from 20 to 45 degrees, reflecting film is plated on the reflecting surface according to the wavelength of incident laser and an incident angle, the optical fiber and the quartz sleeve pipe are pasted and sealed by sealing glue, the reflecting glass and the quartz sleeve pipe are connected in a sealing mode, a sealing air cavity is formed among the optical fiber, the reflecting glass and the quartz sleeve pipe, the protecting layer is arranged outside the quartz sleeve pipe, and a laser outgoing hole is left on the protecting layer. The utility model has the advantages that the laser side transmitting optical fiber scalpel head can compress a laser transmitting and radiating angle according to requirements and can effectively increase the laser power density of the acting point of the laser and soft tissues, the vapourization cutting efficiency of the soft tissues is increased, the optical fiber scalpel head can effectively avoid the conglutination by the soft tissues, the difficulty of an operation is reduced, and the service life of the optical fiber scalpel head is prolonged.
Description
(1) technical field
This utility model relates to a kind of medical laser Minimally Invasive Surgery cutter head, particularly a kind of laser side-shooting optical tool bit that is used for Minimally Invasive Surgery.
(2) background technology
Laser micro-hurt operation in the human body body cavity application aspect soft tissue vaporization, the excision by people cognition, particularly after high power holmium laser and the appearance of green laser, the laser micro-hurt operation has obtained using widely in the benign prostate hyperplasia treatment more.In the laser micro-hurt operation, the transmission means of laser mainly contains the direct projection mode and side is penetrated two kinds of modes.When laser direct projection mode was worked, laser was to be the transmission of center and the cone-shaped beam with certain angle of divergence with the shaft axis of optic fibre, the tissue of the excision optical tool bit front that is suitable for vaporizing.Though this kind mode optical tool bit is simple in structure, the operation technique difficulty is big when handling chamber, side such as prostate wall soft tissue, and the advantage of laser micro-hurt operation can not be fully played.The laser side-shooting mode then can be aimed at laser energy the tissue of the excision of will vaporizing easily, and operation technique is simple and convenient, better guarantees the operation quality.Traditional lateral type optical fiber operation cutter head is that the fiber end face grinding and polishing is become the inclined-plane, utilize total reflection principle to realize that the laser side direction penetrates, but because laser beam divergent angle can not be adjusted by the Optical Fiber Numerical Aperture decision, cause laser action excessive in the area of tissue, thereby the application point laser energy density is low, tissue vaporization efficient is reduced greatly, for some bigger soft tissues such as prostate etc., then cause operating time long, bring a series of problem to operation.In addition the operation in order to reduce the active area of laser and soft tissue, need to improve energy density, be forced to optical tool bit as far as possible near soft tissue, thereby cause soft tissue and optical fiber adhesion easily, optical tool bit is damaged, so not only cause the waste of material and the raising of medical treatment cost, and limited the application of laser micro-hurt operation.
(3) utility model content
The purpose of this utility model is the problem at above-mentioned existence, provide a kind of can compress laser beam divergent angle as required and can effectively improve laser and soft tissue do use laser power density, improve soft tissue vaporization excision efficient, can effectively avoid optical tool bit by the soft tissue adhesion, reduce operation technique difficulty, the extended fiber cutter head laser side-shooting optical tool bit in service life.
The technical solution of the utility model:
A kind of laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is characterized in that: be made of optical fiber, reflecting mirror, quartz socket tube and protective layer; The fibre core end face of optical fiber is the plane; The reflecting surface that reflecting mirror is corresponding with the fibre core end face is that the angle of concave surface or plane and its reflecting surface and shaft axis of optic fibre is 20～45 °, and the side the place ahead that makes laser be 40～90 ° is penetrated, and reflecting surface is according to laser wavelength of incidence and angle of incidence plating reflectance coating; Optical fiber and quartz socket tube fluid sealant adhering and sealing, reflecting mirror and quartz socket tube are tightly connected, and form an airtight air chamber between optical fiber, reflecting mirror and quartz socket tube; Protective layer is arranged on the outside of quartz socket tube and leaves the laser emitting hole.
A kind of above-mentioned laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is characterized in that: the fibre core length of optical fiber is 3～5mm.
A kind of above-mentioned laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is characterized in that: the radius of curvature of concave mirror Optical Fiber Numerical Aperture be 0.22 o'clock be 30～100mm.
A kind of above-mentioned laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is characterized in that: reflecting mirror and the quartz socket tube mode of being tightly connected are the fluid sealant adhering and sealing or with quartz socket tube non-reflecting surface one end of reflecting mirror are wrapped the back frit seal entirely.
The utility model has the advantages that: this laser side-shooting optical tool bit can compress laser beam divergent angle as required, can effectively improve laser and soft tissue make the laser power density of use, improve soft tissue vaporization excision efficient, can effectively avoid optical tool bit sticking by soft tissue, reduce operation technique difficulty, extended fiber cutter head service life.
(4) description of drawings
Accompanying drawing 1 is looked the cross section structure sketch map for the laser side-shooting optical tool bit master.
Accompanying drawing 2 is a laser side-shooting optical tool bit plan structure sketch map.
Among the figure: 1. optical fiber 2. fibre core end faces 3. reflecting mirrors 4. reflectings surface
5. quartz socket tube 6. protective layer 7-I, 7-II. fluid sealant
8. laser emitting hole 9. air chambers
(5) specific embodiment
Embodiment 1:
A kind of laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is made of optical fiber 1, reflecting mirror 3, quartz socket tube 5 and protective layer 6; The fibre core end face 2 of optical fiber 1 is the plane, and fibre core length is 5mm, makes optical fiber connector shoot laser light beam evenly and avoid polluting fiber end face because of the too high roasting bad fiber optic protection layer of fiber end face temperature; Reflecting mirror 3 and fibre core end face 2 corresponding reflectings surface are concave surface, the size of laser side-shooting beam divergence angle can be regulated by the radius of curvature of reflecting surface 4, the radius of curvature of present embodiment reflecting surface 4 Optical Fiber Numerical Aperture be 0.22 o'clock be 40mm, its reflecting surface 4 is 41 ° with the angle of optical fiber 1 axis, according to optical maser wavelength plating reflectance coating, make the area of laser and soft tissue application point less, improved laser power density, laser beam is side the place ahead ejaculation of 82 °, is convenient to operation technique; Optical fiber 1 and quartz socket tube 5 usefulness fluid sealant 7-I adhering and sealings, reflecting mirror 3 and quartz socket tube 5 usefulness fluid sealant 7-II adhering and sealings, between optical fiber 1, reflecting mirror 3 and quartz socket tube 5, form an airtight air chamber 9, can effectively protect fiber core end face 2 and reflecting surface 4; Protective layer 6 is arranged on the outside of quartz socket tube 5; it is the protective metal shell of 0.1mm that protective layer 6 adopts thickness; protective layer 6 tightly be enclosed within quartz socket tube 5 and with the surface of optical fiber 1 junction; can improve the intensity of optical fiber operation cutter head; avoid cutter head in operation process, to break or come off; protective layer 6 leaves laser emitting hole 8, and the laser beam that optical fiber 1 penetrates sees through quartz socket tube 5 and penetrates from laser emitting hole 8 after reflecting surface 4 reflections.Present embodiment is in carrying out chamber, side wall operation on soft tissues such as prostate, and result of use is good.
Embodiment 2:
A kind of laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is made of optical fiber 1, reflecting mirror 3, quartz socket tube 5 and protective layer 6; The fibre core end face 2 of optical fiber 1 is the plane, and fibre core length is 3mm; Reflecting mirror 3 and fibre core end face 2 corresponding reflectings surface are the plane, and its reflecting surface 4 is 30 ° with the angle of optical fiber 1 axis, and according to optical maser wavelength plating reflectance coating, and laser beam is side the place ahead of 60 ° and penetrates, and is convenient to operation technique; Optical fiber 1 and quartz socket tube 5 usefulness fluid sealant 7-I adhering and sealings, reflecting mirror 3 is the sealing means that non-reflecting surface one end of reflecting mirror wrapped full the back welding with quartz socket tube with the sealing of quartz socket tube 5, between optical fiber 1, reflecting mirror 3 and quartz socket tube 5, form an airtight air chamber 9, can effectively protect fiber core end face 2 and reflecting surface 4; Protective layer 6 is arranged on the outside of quartz socket tube 5; it is the metal canula of 0.1mm that protective layer 6 adopts thickness; protective layer 6 tightly be enclosed within quartz socket tube 5 and with the surface of optical fiber 1 junction; can improve the intensity of optical fiber operation cutter head; protective layer 6 leaves laser emitting hole 8, and the laser beam that optical fiber 1 penetrates sees through quartz socket tube 5 and penetrates from laser emitting hole 8 after reflecting surface 4 reflections.Present embodiment carries out in chamber, the side wall operation on soft tissues such as prostate, and result of use is good.
Claims (4)
1. a laser side-shooting optical tool bit that is used for Minimally Invasive Surgery is characterized in that: be made of optical fiber, reflecting mirror, quartz socket tube and protective layer; The fibre core end face of optical fiber is the plane; The reflecting surface that reflecting mirror is corresponding with the fibre core end face is that the angle of concave surface or plane and its reflecting surface and shaft axis of optic fibre is 20～45 °, and the side the place ahead that makes laser be 40～90 ° is penetrated, and reflecting surface is according to laser wavelength of incidence and angle of incidence plating reflectance coating; Optical fiber and quartz socket tube fluid sealant adhering and sealing, reflecting mirror and quartz socket tube are tightly connected, and form an airtight air chamber between optical fiber, reflecting mirror and quartz socket tube; Protective layer is arranged on the outside of quartz socket tube and leaves the laser emitting hole.
2. according to the described laser side-shooting optical tool bit that is used for Minimally Invasive Surgery of claim 1, it is characterized in that: the fibre core length of optical fiber is 3～5mm.
3. according to the described laser side-shooting optical tool bit that is used for Minimally Invasive Surgery of claim 1, it is characterized in that: the radius of curvature of concave mirror Optical Fiber Numerical Aperture be 0.22 o'clock be 30～100mm.
4. according to the described laser side-shooting optical tool bit that is used for Minimally Invasive Surgery of claim 1, it is characterized in that: reflecting mirror and the quartz socket tube mode of being tightly connected are the fluid sealant adhering and sealing or non-reflecting surface one end of reflecting mirror are wrapped full the sealing means of back welding with quartz socket tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200743610U CN201179111Y (en) | 2008-04-09 | 2008-04-09 | Laser side-irradiation optical fiber knife head for minimally invasive operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200743610U CN201179111Y (en) | 2008-04-09 | 2008-04-09 | Laser side-irradiation optical fiber knife head for minimally invasive operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179111Y true CN201179111Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200743610U Expired - Lifetime CN201179111Y (en) | 2008-04-09 | 2008-04-09 | Laser side-irradiation optical fiber knife head for minimally invasive operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN201179111Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950395A (en) * | 2014-03-31 | 2015-09-30 | 北京自动化控制设备研究所 | Optical fiber end surface reflecting mirror packaging method |
| CN105074519A (en) * | 2013-01-18 | 2015-11-18 | 庆北大学校产学协力团 | Bundled fiber optic probe |
| CN105310772A (en) * | 2014-07-31 | 2016-02-10 | 郑博文 | Minimally invasive surgery assembly |
| CN110531461A (en) * | 2018-05-25 | 2019-12-03 | 北京华夏光谷光电科技有限公司 | Medical laser optical fiber is penetrated in side |
| EP3597133A1 (en) * | 2015-03-19 | 2020-01-22 | Boston Scientific Scimed, Inc. | Side-fire laser fiber having a molded reflective surface |
-
2008
- 2008-04-09 CN CNU2008200743610U patent/CN201179111Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074519A (en) * | 2013-01-18 | 2015-11-18 | 庆北大学校产学协力团 | Bundled fiber optic probe |
| CN105074519B (en) * | 2013-01-18 | 2018-10-19 | 庆北大学校产学协力团 | Bundled optical fiber probe |
| CN104950395A (en) * | 2014-03-31 | 2015-09-30 | 北京自动化控制设备研究所 | Optical fiber end surface reflecting mirror packaging method |
| CN104950395B (en) * | 2014-03-31 | 2018-02-09 | 北京自动化控制设备研究所 | A kind of optical fiber end face reflector method for packing |
| CN105310772A (en) * | 2014-07-31 | 2016-02-10 | 郑博文 | Minimally invasive surgery assembly |
| EP3597133A1 (en) * | 2015-03-19 | 2020-01-22 | Boston Scientific Scimed, Inc. | Side-fire laser fiber having a molded reflective surface |
| US11399892B2 (en) | 2015-03-19 | 2022-08-02 | Boston Scientific Scimed, Inc. | Side-fire laser fiber having a molded reflective surface |
| CN110531461A (en) * | 2018-05-25 | 2019-12-03 | 北京华夏光谷光电科技有限公司 | Medical laser optical fiber is penetrated in side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Tiankun Photoelectric Tech Co., Ltd., Tianjin City Document name: Notification of Expiration of Patent Right Duration |
|
| DD01 | Delivery of document by public notice |