CA2038949A1 - Laser light emitter - Google Patents
Laser light emitterInfo
- Publication number
- CA2038949A1 CA2038949A1 CA002038949A CA2038949A CA2038949A1 CA 2038949 A1 CA2038949 A1 CA 2038949A1 CA 002038949 A CA002038949 A CA 002038949A CA 2038949 A CA2038949 A CA 2038949A CA 2038949 A1 CA2038949 A1 CA 2038949A1
- Authority
- CA
- Canada
- Prior art keywords
- laser light
- excision
- prominence
- optical fiber
- light emitter
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/24—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
Abstract
L A S E R L I G H T E M I T T E R
ABSTRACT OF THE DISCLOSURE
This invention relates to a lasser light emitter in use for excision of a prominence of living tissue of animal organisms.
This apparatus comprising an excision means, wherein a part of said excision means composes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence, the rest part of said excision means composes a light emission-intercepting member in the opposite side to said direction for excision of the prominence in order to shut off the laser light emission, and said laser light emitting portion is optically connected with a laser light generator.
ABSTRACT OF THE DISCLOSURE
This invention relates to a lasser light emitter in use for excision of a prominence of living tissue of animal organisms.
This apparatus comprising an excision means, wherein a part of said excision means composes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence, the rest part of said excision means composes a light emission-intercepting member in the opposite side to said direction for excision of the prominence in order to shut off the laser light emission, and said laser light emitting portion is optically connected with a laser light generator.
Description
2~3~9 SPECIFIC~TION
LASER L I GHT EMI TTER
TECHNICAL FIELD
This invention relates to a lasser light emitter in use for excision of a prominence of living tissue of animal organisms.
PRIOR ART
. _ It is known that a high frequency scalpel is used in excision of a prominence of living tissue as a prostate. For example, a high frequency scalpel has a hexagonal wire 5t (in general, it is called snare) projecting in front of a holder 50 as shown in Fig 11, and high frequency current is flown into the wire 51.
When such apparatus for excision is used, said wire 51 is so positioned that a prominence is disposed within the wire 51 so as to cauterize to remove the prominence by heat~
However, this kind of a high frequency snare has a disadvantage fundamentally. Namely9 when a pro~inence, that is an affected part, is removed under the presence of physlorogical salt solution, electrisity flowing through physiorogical salt solution occasionally gives a shock to the human body or a burn near the affected part.
So an operator cannot but substitute physiorogical salt solution by distilled water in ~edical treatment. And it is impossiblle to remove a prominence with stopping of bleeding.
The general object of the present invention is providing a .
:::
.
: . . ..
: : . - . - . .. .. ..
... . .. . ., . , .. . . ,....... ~ ;
2 ~ 7L 9 laser light emitter which can exert excision under the presence of physiorogical salt solution and can exert excision with controlling bleeding.
DISCLOSURE OF THE INVENTION
In order to solve above mentioned problems, the present invention features a laser light emitter comprising;an excision means , wherein a part of said excision means composes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence, the rest part of said excision means composes a light emission-intercepting member in the opposite side to said direction for excision of the prominence in order to shut off the laser light emission, and said laser light emitting portion is optically connected with a laser light generator.
Moreover, in the preferable embodiment for the convenience of manufacture, the present invention further features laser light emitter is made of an optical fiber covered with a metal member, a part of said laser light emitter is formed to be an excision -means, at least a part of said excision means is formed as an uncovered portion in the direction for excision of the prominence and the core of said optical fiber is exposed at said uncovered portion so as to form the laser emitting portion, and the rest part of said excision means is covered with said metal member to form the laser light emission-intercepting member.
According to the present invention, a prominence ~process) is removed by emitting laser light.
- ~ . :
2~3~9~
Accordingly, safe excision of the prominence can made without giving a shock to the human body or a burn, if laser light is emitted under the presence of physiorogical salt solution.
In addition, it is possible to remove the prominence with controlling bleeding by regulating quantity of laser light emission and the ability of hemostasis by laser light. Therefore a laser light emitter according to the present invention is so effective for excision of hemorrhagic organism.
BRIEF DESCRIPTION OF THE DRAHINGS
Fig.1 is a perspective view of the first embodiment of a laser light emitter according to the present invention; Fig.2 is a front view of the embodiment of Fig.1; Fig.3 is a sectional view of the embodiment of Fig.1 taken on line m - m; Fig.4 is a sectional view of the embodiment of Fig.1 taken on line ~ - rV; Fig.5 is a perspective view of the second embodiment of a laser light emitter according to the present invention; Fig.6 is a vertical sectional view of a part of the second embodiment; Fig.7 is a plan view of the third embodiment of a laser light emitter according to the present invention; Fig.8 and Fig.9 are perspective views of still other embodiments; Flg~10 is a vertical sectional view of another embodimentJ wherein laser light is emitted through a light-transmissible ceramic material provided at the end of optical fiber;
Fig.11 is a plan view of a conventional apparatus.
LASER L I GHT EMI TTER
TECHNICAL FIELD
This invention relates to a lasser light emitter in use for excision of a prominence of living tissue of animal organisms.
PRIOR ART
. _ It is known that a high frequency scalpel is used in excision of a prominence of living tissue as a prostate. For example, a high frequency scalpel has a hexagonal wire 5t (in general, it is called snare) projecting in front of a holder 50 as shown in Fig 11, and high frequency current is flown into the wire 51.
When such apparatus for excision is used, said wire 51 is so positioned that a prominence is disposed within the wire 51 so as to cauterize to remove the prominence by heat~
However, this kind of a high frequency snare has a disadvantage fundamentally. Namely9 when a pro~inence, that is an affected part, is removed under the presence of physlorogical salt solution, electrisity flowing through physiorogical salt solution occasionally gives a shock to the human body or a burn near the affected part.
So an operator cannot but substitute physiorogical salt solution by distilled water in ~edical treatment. And it is impossiblle to remove a prominence with stopping of bleeding.
The general object of the present invention is providing a .
:::
.
: . . ..
: : . - . - . .. .. ..
... . .. . ., . , .. . . ,....... ~ ;
2 ~ 7L 9 laser light emitter which can exert excision under the presence of physiorogical salt solution and can exert excision with controlling bleeding.
DISCLOSURE OF THE INVENTION
In order to solve above mentioned problems, the present invention features a laser light emitter comprising;an excision means , wherein a part of said excision means composes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence, the rest part of said excision means composes a light emission-intercepting member in the opposite side to said direction for excision of the prominence in order to shut off the laser light emission, and said laser light emitting portion is optically connected with a laser light generator.
Moreover, in the preferable embodiment for the convenience of manufacture, the present invention further features laser light emitter is made of an optical fiber covered with a metal member, a part of said laser light emitter is formed to be an excision -means, at least a part of said excision means is formed as an uncovered portion in the direction for excision of the prominence and the core of said optical fiber is exposed at said uncovered portion so as to form the laser emitting portion, and the rest part of said excision means is covered with said metal member to form the laser light emission-intercepting member.
According to the present invention, a prominence ~process) is removed by emitting laser light.
- ~ . :
2~3~9~
Accordingly, safe excision of the prominence can made without giving a shock to the human body or a burn, if laser light is emitted under the presence of physiorogical salt solution.
In addition, it is possible to remove the prominence with controlling bleeding by regulating quantity of laser light emission and the ability of hemostasis by laser light. Therefore a laser light emitter according to the present invention is so effective for excision of hemorrhagic organism.
BRIEF DESCRIPTION OF THE DRAHINGS
Fig.1 is a perspective view of the first embodiment of a laser light emitter according to the present invention; Fig.2 is a front view of the embodiment of Fig.1; Fig.3 is a sectional view of the embodiment of Fig.1 taken on line m - m; Fig.4 is a sectional view of the embodiment of Fig.1 taken on line ~ - rV; Fig.5 is a perspective view of the second embodiment of a laser light emitter according to the present invention; Fig.6 is a vertical sectional view of a part of the second embodiment; Fig.7 is a plan view of the third embodiment of a laser light emitter according to the present invention; Fig.8 and Fig.9 are perspective views of still other embodiments; Flg~10 is a vertical sectional view of another embodimentJ wherein laser light is emitted through a light-transmissible ceramic material provided at the end of optical fiber;
Fig.11 is a plan view of a conventional apparatus.
;: ~
: ~ ,, .
, ~ , ' ~ ' ', . ' ~ ' ' ' . ' ' ., - ' : ' ., .,1" . . '"' '.'. "" "~' ' ' ': ' " 2~333~
THE BEST MODE_TO CARRY OUT THE INVENTION
The present invention is described more particularly hereinafter.
Fig.1-Fig4 show the first embodiment. An optical fiber 1 is covered with a metal member, for example a stainless-steel tube 2.
An instrument for excision 10 provides a parallel holding portions 11A,11B and a ring-shaped portion 12 continuously connecting with the holding portion 11A and the holding portion llB.
Further, a ring-shaped portion in the present invention does not mean a close-ring portion, but an open-ring portion. In fact, it is an open-loop portion.
The ring-shaped portion 12 is projecting downward in the shape of letter U from the ends of the holding portions 11A,llB.
Either side of optical fiber for example the other end of the optical fiber 1 covered with the holding portion 11A is optically connected with a laser light generator (not illustrated).
On the other hand, a part of the ring-shaped portion 12 composes a laser light emitting portion L which is capable of emitting laser light in the direction C for excision the prominence M, and the rest part of the ring-shaped portion 12 composes a emission-intercepting member in the opposite side to the direction C for excision in order to shut off the laser light emission.
To be concrete, the ring-shaped portion 12 is formed as an uncovered portion by a stainless-steel tube 2 on the emitting portion L and the core of the optical fiber 1 is exposed at the uncovered portion so as to form the emitting portion L, and the ,:
:' ' .. . .
: ~. . - . . ~ . ~ . . .. . .
rest part of the ring-shaped portion 12 is covered with the stain]ess-steel tube 2 to form the laser light emission-intercepting member in the present invention.
In such apparatus, a laser light generated from the light generator is transmitted into the optical fiber 1. Wherein laser light is so covered with the stainless-steel tube 2 that laser light is not emitted at the covered portion. Accordingly, a part of the stainless-steel tube 2 on the emitting portion L is so opened in the direction C for excision that a laser light is emitted from the exposed portion of the core of the optical fiber 1 in Fig.2. Laser light is irradiated to the prominence M, and excision is done from the root of the prominence M by the excision ability of laser light. An operator generally holds the instrument for excision in the present invention on the holding portion 11A, llB, and then moves succesively the instrument in the direction C
for excision to exert excision.
In the above-described embodiment, the core of the optical fiber 1 is directly covered with the stainless-steel tube 2, however the core of the optical fiber 1 may be covered with clad.
Wherein the core of the optical fiber 1 needs to be exposed by removing of the clad on at least the emitting portion L.
In the first embodiment3 the angle ~ refined by the holding portion 11A,llB and the emitting portion L is 45-120 , preferably 65-~5 ~ .
In the first embodiment, the parallel holding portion 11A~llB
are formed to be hold, however only the holding portion 11A is ..
. ~ , , , ' .:
- . ,............ .' : ' :.' ;,' , ' ' , , ' ' . . ~ ; :
~38~
for~ed and the e~itting portion L is capable of being for~ed at the end of the holding portion 11A in Fig.5. The part designated by numeral 15 is a holder provided if needed for making easy to hold.
Moreover, accordong to the second embodiment in Figo5 and Fig.6, a laser light reflecting portion 13 is provided at the end of the emitting portion L, wherein the reflecting portion 13 prevents laser light from being emitted at the end of the optical fiber 1 and laser light is capable of being emitted only at the side of the optical fiber 1. The reflecting portion 13 is providing a supporting member 14 continuously at the end of the stainless-steel tube 2 and the reflecting portion 13 is capable o~ being made of a reflecting material as a layer made by a gold plating positioned inside the supporting member 14.
Further, the emitting portion L is for~ed in U-shape in the above-described embodiments, when it is observed from the left side in Fig.2. However it may be a circle or a trapezium or a rectangle (the top of every shape needs to remain discontinuous).
On the other hand, Fig.7 shows a plan view of the third embodiment, and a ring-shaped porton 12A is formed at the end of a holder 20. A part of stainless-steel tube 2 is broken away and the core of the optical fiber 1 is exposed as shown in the first embodiment.
In the third embodiment, the ring-shaped portion 12 is so positioned that the prominence is disposed within the ring-shaped portion 12A like a conventional snare, and then the ring-shaped portion 12A is moved in the direction C to exert excision by laser ~3~9~ ~
light irradiation.
In the third embodi~ent, the holder 20 can be omitted.
On the other hand, in the above described embodiments, the emitting portion is formed on almost ~he whole of the ring-shaped portion 12 or 12A, however in the first embodiment the emitting portion can be formed only at the bottom of the U-shaped portion and in the third embodiment the emitting portion can be formed only on the right half of the ring-shaped portion.
Moreover, in the above-described embodiments, the core of the optical fiber is covered with a metal member for example stainless-steel tube from the point of view of strength. However, if so much strength is not needed, a light emitter can be formed of single optical fiber covered with a clad, wherein the clad is partly broken away and the core is exposed to form the emitting portion.
In this case, the clad is equivalent to the light emission-intercepting portion in the present invention.
Moreover, in a modification of the third embodiment illustrared in Fig.~, an emitting member 31 made of a light-transmissible ceramic for example bent into ring-shape having circular cross section is provided at the end of an optical fiber 30 having a core 30a and a clad 30b, and laser light exited at the end of the core 30a of the optical fiber 30 enters into the emitting member 31, and then laser light is capable of being emitted from the emitting ~ember 31. The part designated by numeral 32 is a holder and the part designated by numeral 33 is the instrument for connecting.
Such method of the indirect incidence is applicable in the first :, , . :
~ IL 3 ~ r embodiment and the second embodiment.
On the other hand, as shown in Fig.9 and Fig.10 respectively corresponding to Fig.1 and Fig.5, if laser light is wanted to be emitted more concentratedly to the direction for excision, the core 1 is be so formed that its diameter gradually gets thinner.
Then the quantity of emitted laser light increases at the diminished portion as with the case of a slender conic probe, so the laser light can be led to the direction for excision more effectively.
On the other hand, the surface of a laser light emitting portion can be provided with the surface layer for diffusing of laser light if needed. A laser light absorbing particle as carbon or a laser light diffusing particle as silica having larger refractive index than that of an emitting member as a core material can be utilized~ And the surface of a laser light emitting portion can be provided with a roughened surface to raise diffusing.
Moreover, a laser light e~itter in the present invention is capable of being used in an operation by using endoscope as well as a surgical operationO
INDUSTRIAL UTILIZATION
As a result, according to the present invention, it is possible to remove the prominence under the presence of physiorogical salt solution with controlling bleeding without giving a shock to the human body.
: - . - . .: . . -, . . . . .
: ~ ,, .
, ~ , ' ~ ' ', . ' ~ ' ' ' . ' ' ., - ' : ' ., .,1" . . '"' '.'. "" "~' ' ' ': ' " 2~333~
THE BEST MODE_TO CARRY OUT THE INVENTION
The present invention is described more particularly hereinafter.
Fig.1-Fig4 show the first embodiment. An optical fiber 1 is covered with a metal member, for example a stainless-steel tube 2.
An instrument for excision 10 provides a parallel holding portions 11A,11B and a ring-shaped portion 12 continuously connecting with the holding portion 11A and the holding portion llB.
Further, a ring-shaped portion in the present invention does not mean a close-ring portion, but an open-ring portion. In fact, it is an open-loop portion.
The ring-shaped portion 12 is projecting downward in the shape of letter U from the ends of the holding portions 11A,llB.
Either side of optical fiber for example the other end of the optical fiber 1 covered with the holding portion 11A is optically connected with a laser light generator (not illustrated).
On the other hand, a part of the ring-shaped portion 12 composes a laser light emitting portion L which is capable of emitting laser light in the direction C for excision the prominence M, and the rest part of the ring-shaped portion 12 composes a emission-intercepting member in the opposite side to the direction C for excision in order to shut off the laser light emission.
To be concrete, the ring-shaped portion 12 is formed as an uncovered portion by a stainless-steel tube 2 on the emitting portion L and the core of the optical fiber 1 is exposed at the uncovered portion so as to form the emitting portion L, and the ,:
:' ' .. . .
: ~. . - . . ~ . ~ . . .. . .
rest part of the ring-shaped portion 12 is covered with the stain]ess-steel tube 2 to form the laser light emission-intercepting member in the present invention.
In such apparatus, a laser light generated from the light generator is transmitted into the optical fiber 1. Wherein laser light is so covered with the stainless-steel tube 2 that laser light is not emitted at the covered portion. Accordingly, a part of the stainless-steel tube 2 on the emitting portion L is so opened in the direction C for excision that a laser light is emitted from the exposed portion of the core of the optical fiber 1 in Fig.2. Laser light is irradiated to the prominence M, and excision is done from the root of the prominence M by the excision ability of laser light. An operator generally holds the instrument for excision in the present invention on the holding portion 11A, llB, and then moves succesively the instrument in the direction C
for excision to exert excision.
In the above-described embodiment, the core of the optical fiber 1 is directly covered with the stainless-steel tube 2, however the core of the optical fiber 1 may be covered with clad.
Wherein the core of the optical fiber 1 needs to be exposed by removing of the clad on at least the emitting portion L.
In the first embodiment3 the angle ~ refined by the holding portion 11A,llB and the emitting portion L is 45-120 , preferably 65-~5 ~ .
In the first embodiment, the parallel holding portion 11A~llB
are formed to be hold, however only the holding portion 11A is ..
. ~ , , , ' .:
- . ,............ .' : ' :.' ;,' , ' ' , , ' ' . . ~ ; :
~38~
for~ed and the e~itting portion L is capable of being for~ed at the end of the holding portion 11A in Fig.5. The part designated by numeral 15 is a holder provided if needed for making easy to hold.
Moreover, accordong to the second embodiment in Figo5 and Fig.6, a laser light reflecting portion 13 is provided at the end of the emitting portion L, wherein the reflecting portion 13 prevents laser light from being emitted at the end of the optical fiber 1 and laser light is capable of being emitted only at the side of the optical fiber 1. The reflecting portion 13 is providing a supporting member 14 continuously at the end of the stainless-steel tube 2 and the reflecting portion 13 is capable o~ being made of a reflecting material as a layer made by a gold plating positioned inside the supporting member 14.
Further, the emitting portion L is for~ed in U-shape in the above-described embodiments, when it is observed from the left side in Fig.2. However it may be a circle or a trapezium or a rectangle (the top of every shape needs to remain discontinuous).
On the other hand, Fig.7 shows a plan view of the third embodiment, and a ring-shaped porton 12A is formed at the end of a holder 20. A part of stainless-steel tube 2 is broken away and the core of the optical fiber 1 is exposed as shown in the first embodiment.
In the third embodiment, the ring-shaped portion 12 is so positioned that the prominence is disposed within the ring-shaped portion 12A like a conventional snare, and then the ring-shaped portion 12A is moved in the direction C to exert excision by laser ~3~9~ ~
light irradiation.
In the third embodi~ent, the holder 20 can be omitted.
On the other hand, in the above described embodiments, the emitting portion is formed on almost ~he whole of the ring-shaped portion 12 or 12A, however in the first embodiment the emitting portion can be formed only at the bottom of the U-shaped portion and in the third embodiment the emitting portion can be formed only on the right half of the ring-shaped portion.
Moreover, in the above-described embodiments, the core of the optical fiber is covered with a metal member for example stainless-steel tube from the point of view of strength. However, if so much strength is not needed, a light emitter can be formed of single optical fiber covered with a clad, wherein the clad is partly broken away and the core is exposed to form the emitting portion.
In this case, the clad is equivalent to the light emission-intercepting portion in the present invention.
Moreover, in a modification of the third embodiment illustrared in Fig.~, an emitting member 31 made of a light-transmissible ceramic for example bent into ring-shape having circular cross section is provided at the end of an optical fiber 30 having a core 30a and a clad 30b, and laser light exited at the end of the core 30a of the optical fiber 30 enters into the emitting member 31, and then laser light is capable of being emitted from the emitting ~ember 31. The part designated by numeral 32 is a holder and the part designated by numeral 33 is the instrument for connecting.
Such method of the indirect incidence is applicable in the first :, , . :
~ IL 3 ~ r embodiment and the second embodiment.
On the other hand, as shown in Fig.9 and Fig.10 respectively corresponding to Fig.1 and Fig.5, if laser light is wanted to be emitted more concentratedly to the direction for excision, the core 1 is be so formed that its diameter gradually gets thinner.
Then the quantity of emitted laser light increases at the diminished portion as with the case of a slender conic probe, so the laser light can be led to the direction for excision more effectively.
On the other hand, the surface of a laser light emitting portion can be provided with the surface layer for diffusing of laser light if needed. A laser light absorbing particle as carbon or a laser light diffusing particle as silica having larger refractive index than that of an emitting member as a core material can be utilized~ And the surface of a laser light emitting portion can be provided with a roughened surface to raise diffusing.
Moreover, a laser light e~itter in the present invention is capable of being used in an operation by using endoscope as well as a surgical operationO
INDUSTRIAL UTILIZATION
As a result, according to the present invention, it is possible to remove the prominence under the presence of physiorogical salt solution with controlling bleeding without giving a shock to the human body.
: - . - . .: . . -, . . . . .
Claims (2)
1. A laser light emitter for excision of a prominence of an animal organism comprising an excision means, wherein a part of said excision means composes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence, the rest part of said excision means composes a light emission-intercepting member in the opposite side to said direction for excision of the prominence in order to shut off the laser light emission, and said laser light emitting portion is optically connected with a laser light generator.
2. A laser light emitter according to claim 1, wherein said laser light emitter is made of an optical fiber covered with a metal member, a part of said laser light emitter is formed to be an excision means, at least a part of said excision means is formed as an uncovered portion in the direction for excision of the prominence and the core of said optical fiber is exposed at said uncovered portion so as to form the laser emitting portion, and the rest part of said excision means is covered with said metal member to form the laser light emission-intercepting member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1227092A JP3069108B2 (en) | 1989-09-01 | 1989-09-01 | Laser light emitting device |
| JP1-227092 | 1989-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2038949A1 true CA2038949A1 (en) | 1991-03-02 |
Family
ID=16855367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002038949A Abandoned CA2038949A1 (en) | 1989-09-01 | 1990-08-30 | Laser light emitter |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5151097A (en) |
| EP (1) | EP0441978B1 (en) |
| JP (1) | JP3069108B2 (en) |
| CN (1) | CN1051667A (en) |
| AT (1) | ATE107153T1 (en) |
| AU (1) | AU6281890A (en) |
| CA (1) | CA2038949A1 (en) |
| DE (1) | DE69009976T2 (en) |
| ES (1) | ES2057586T3 (en) |
| WO (1) | WO1991003206A1 (en) |
| ZA (1) | ZA906920B (en) |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195958A (en) * | 1990-05-25 | 1993-03-23 | Phillips Edward H | Tool for laparoscopic surgery |
| US5300063A (en) * | 1991-05-11 | 1994-04-05 | Nidek Co., Ltd. | Ophthalmic laser apparatus |
| DE59208936D1 (en) * | 1991-07-17 | 1997-11-06 | Siemens Ag | Handpiece for the stomatological application of laser light |
| US5688264A (en) * | 1992-10-19 | 1997-11-18 | The University Of Miami | Laser treatment for retinal detachment |
| US5342358A (en) * | 1993-01-12 | 1994-08-30 | S.L.T. Japan Co., Ltd. | Apparatus for operation by laser energy |
| US5451221A (en) * | 1993-12-27 | 1995-09-19 | Cynosure, Inc. | Endoscopic light delivery system |
| US5668993A (en) | 1994-02-28 | 1997-09-16 | Teleflex Information Systems, Inc. | Multithreaded batch processing system |
| US5476461A (en) * | 1994-05-13 | 1995-12-19 | Cynosure, Inc. | Endoscopic light delivery system |
| US6558375B1 (en) * | 2000-07-14 | 2003-05-06 | Cardiofocus, Inc. | Cardiac ablation instrument |
| US6270492B1 (en) | 1994-09-09 | 2001-08-07 | Cardiofocus, Inc. | Phototherapeutic apparatus with diffusive tip assembly |
| US5908415A (en) * | 1994-09-09 | 1999-06-01 | Rare Earth Medical, Inc. | Phototherapy methods and apparatus |
| US5632767A (en) * | 1994-09-09 | 1997-05-27 | Rare Earth Medical, Inc. | Loop diffusers for diffusion of optical radiation |
| US5637877A (en) * | 1995-06-06 | 1997-06-10 | Rare Earth Medical, Inc. | Ultraviolet sterilization of instrument lumens |
| US5947959A (en) * | 1994-09-09 | 1999-09-07 | Rare Earth Medical, Inc. | Phototherapeutic apparatus with diffusive tip assembly |
| US6676656B2 (en) * | 1994-09-09 | 2004-01-13 | Cardiofocus, Inc. | Surgical ablation with radiant energy |
| US8025661B2 (en) | 1994-09-09 | 2011-09-27 | Cardiofocus, Inc. | Coaxial catheter instruments for ablation with radiant energy |
| US6423055B1 (en) | 1999-07-14 | 2002-07-23 | Cardiofocus, Inc. | Phototherapeutic wave guide apparatus |
| US6579285B2 (en) * | 1994-09-09 | 2003-06-17 | Cardiofocus, Inc. | Photoablation with infrared radiation |
| US8540704B2 (en) | 1999-07-14 | 2013-09-24 | Cardiofocus, Inc. | Guided cardiac ablation catheters |
| US7935108B2 (en) | 1999-07-14 | 2011-05-03 | Cardiofocus, Inc. | Deflectable sheath catheters |
| US9033961B2 (en) | 1999-07-14 | 2015-05-19 | Cardiofocus, Inc. | Cardiac ablation catheters for forming overlapping lesions |
| US8900219B2 (en) | 1999-07-14 | 2014-12-02 | Cardiofocus, Inc. | System and method for visualizing tissue during ablation procedures |
| US20040147911A1 (en) * | 1999-08-25 | 2004-07-29 | Cardiofocus, Inc. | Surgical ablation instruments for forming an encircling lesion |
| US20040167503A1 (en) * | 1999-08-25 | 2004-08-26 | Cardiofocus, Inc. | Malleable surgical ablation instruments |
| WO2004000098A2 (en) | 2002-06-19 | 2003-12-31 | Palomar Medical Technologies, Inc. | Method and apparatus for treatment of cutaneous and subcutaneous conditions |
| US7731715B2 (en) * | 2004-12-10 | 2010-06-08 | Edwards Lifesciences Corporation | Ablative treatment of atrial fibrillation via the coronary sinus |
| US20060253025A1 (en) * | 2005-04-21 | 2006-11-09 | Kaufman Jonathan J | Ultrasonic Bone Assessment Apparatus and Method |
| US7856985B2 (en) | 2005-04-22 | 2010-12-28 | Cynosure, Inc. | Method of treatment body tissue using a non-uniform laser beam |
| DE102006016957B4 (en) * | 2006-04-11 | 2010-04-22 | Vimecon Gmbh | laser applicator |
| US7586957B2 (en) | 2006-08-02 | 2009-09-08 | Cynosure, Inc | Picosecond laser apparatus and methods for its operation and use |
| US8696653B2 (en) | 2009-10-02 | 2014-04-15 | Cardiofocus, Inc. | Cardiac ablation system with pulsed aiming light |
| EP2485671B1 (en) | 2009-10-06 | 2019-03-20 | Cardiofocus, Inc. | Cardiac ablation image analysis system |
| JP2015510142A (en) * | 2012-01-31 | 2015-04-02 | アシメトリック メディカル リミテッド | Optical fiber configured to emit radiation by bending |
| KR102342629B1 (en) | 2012-04-18 | 2021-12-22 | 싸이노슈어, 엘엘씨 | Picosecond laser apparatus and methods for treating target tissues with same |
| US10285757B2 (en) | 2013-03-15 | 2019-05-14 | Cynosure, Llc | Picosecond optical radiation systems and methods of use |
| EP3137007A4 (en) | 2014-04-28 | 2017-09-27 | Cardiofocus, Inc. | System and method for visualizing tissue with an icg dye composition during ablation procedures |
| EP3226744A4 (en) | 2014-12-03 | 2018-08-08 | Cardiofocus, Inc. | System and method for visual confirmation of pulmonary vein isolation during ablation procedures |
| KR102627248B1 (en) | 2018-02-26 | 2024-01-19 | 싸이노슈어, 엘엘씨 | Q-switched cavity dumping subnanosecond laser |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126136A (en) * | 1976-02-09 | 1978-11-21 | Research Corporation | Photocoagulating scalpel system |
| DE2821376C3 (en) * | 1977-05-16 | 1981-02-19 | Olympus Optical Co., Ltd., Tokio | Laser instrument for etching or sclerosing a piece of tissue within the coelom |
| JPS5710648Y2 (en) * | 1977-06-24 | 1982-03-02 | ||
| US4266547A (en) * | 1977-05-16 | 1981-05-12 | Olympus Optical Co., Ltd. | Laser knife |
| US4240431A (en) * | 1977-05-16 | 1980-12-23 | Olympus Optical Co., Ltd. | Laser knife |
| US4249533A (en) * | 1977-05-16 | 1981-02-10 | Olympus Optical Co., Ltd. | Laser knife |
| US4273127A (en) * | 1978-10-12 | 1981-06-16 | Research Corporation | Method for cutting and coagulating tissue |
| JPS5810039A (en) * | 1981-07-13 | 1983-01-20 | 住友電気工業株式会社 | Handpiece for laser knife |
| US4693244A (en) * | 1984-05-22 | 1987-09-15 | Surgical Laser Technologies, Inc. | Medical and surgical laser probe I |
| US4736743A (en) * | 1986-05-12 | 1988-04-12 | Surgical Laser Technology, Inc. | Vaporization contact laser probe |
| JPS62202815U (en) * | 1986-06-13 | 1987-12-24 | ||
| JPS63216579A (en) * | 1987-03-05 | 1988-09-08 | 大工園 則雄 | Laser beam irradiation apparatus for hyperthermia |
| JP2671016B2 (en) * | 1988-07-08 | 1997-10-29 | サージカル・レーザー・テクノロジーズ・インコーポレイテッド | Laser treatment device for narrow path in living tissue |
-
1989
- 1989-09-01 JP JP1227092A patent/JP3069108B2/en not_active Expired - Lifetime
-
1990
- 1990-08-28 US US07/573,563 patent/US5151097A/en not_active Expired - Fee Related
- 1990-08-30 DE DE69009976T patent/DE69009976T2/en not_active Expired - Fee Related
- 1990-08-30 ZA ZA906920A patent/ZA906920B/en unknown
- 1990-08-30 EP EP90912952A patent/EP0441978B1/en not_active Expired - Lifetime
- 1990-08-30 WO PCT/JP1990/001108 patent/WO1991003206A1/en active IP Right Grant
- 1990-08-30 CA CA002038949A patent/CA2038949A1/en not_active Abandoned
- 1990-08-30 AT AT90912952T patent/ATE107153T1/en not_active IP Right Cessation
- 1990-08-30 ES ES90912952T patent/ES2057586T3/en not_active Expired - Lifetime
- 1990-08-30 AU AU62818/90A patent/AU6281890A/en not_active Abandoned
- 1990-08-31 CN CN90108169A patent/CN1051667A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69009976T2 (en) | 1995-03-02 |
| JPH0390143A (en) | 1991-04-16 |
| EP0441978A4 (en) | 1992-04-22 |
| AU6281890A (en) | 1991-04-08 |
| CN1051667A (en) | 1991-05-29 |
| ES2057586T3 (en) | 1994-10-16 |
| US5151097A (en) | 1992-09-29 |
| WO1991003206A1 (en) | 1991-03-21 |
| EP0441978B1 (en) | 1994-06-15 |
| DE69009976D1 (en) | 1994-07-21 |
| JP3069108B2 (en) | 2000-07-24 |
| ATE107153T1 (en) | 1994-07-15 |
| ZA906920B (en) | 1991-06-26 |
| EP0441978A1 (en) | 1991-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |