ITBS20020029U1 - FIBER OPTIC CATHETER FOR THERMAL-ABLATION - Google Patents
FIBER OPTIC CATHETER FOR THERMAL-ABLATION Download PDFInfo
- Publication number
- ITBS20020029U1 ITBS20020029U1 ITBS20020029U ITBS20020029U1 IT BS20020029 U1 ITBS20020029 U1 IT BS20020029U1 IT BS20020029 U ITBS20020029 U IT BS20020029U IT BS20020029 U1 ITBS20020029 U1 IT BS20020029U1
- Authority
- IT
- Italy
- Prior art keywords
- optical fiber
- optical fibers
- catheter
- central element
- catheter according
- Prior art date
Links
- 238000002679 ablation Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 title claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 38
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000011514 reflex Effects 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011298 ablation treatment Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
-
- 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
- A61B2018/2255—Optical elements at the distal end of probe tips
- A61B2018/2272—Optical elements at the distal end of probe tips with reflective or refractive surfaces for deflecting the beam
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
- Radiation-Therapy Devices (AREA)
- Materials For Medical Uses (AREA)
Description
HIESSE s.r.l HIESSE s.r.l
D E S C R I Z I O N E DESCRIPTION
del BREVETTO per MODELLO INDUSTRIALE DI UTILITÀ’ avente per titolo: of the PATENT for INDUSTRIAL UTILITY MODEL entitled:
“CATETERE A FIBRE OTTICHE PER TERMO - ABLAZIONE” a nome FOGAZZI di Venturelli Andrea & C. S.n.c., di nazionalità italiana, con sede in Via L. Marenzio 7 - Loc. Roncaglie, 25062 CONCESIO, Brescia Domanda No. „ ..^ ΛDepositata li 5» 5 MfìP "FIBER OPTIC CATHETER FOR THERMO - ABLATION" in the name of FOGAZZI di Venturelli Andrea & C. S.n.c., of Italian nationality, with headquarters in Via L. Marenzio 7 - Loc. Roncaglie, 25062 CONCESIO, Brescia Application No. „.. ^ ΛDeposit on 5 »5 MfìP
ÌlBS2OS:U0t0U29 ÌlBS2OS: U0t0U29
Il presente modello di utilità riguarda in generale i cateteri a fibre ottiche per l’impiego in campo medicale e chirurgico, e si riferisce in particolare ad un catetere a fibre ottiche per la termo-ablazione mediante las Nell’ambito dei dispositivi medicali e chirurgici attualmente disponib sono noti anche dei cateteri per effettuare interventi di termo-ablazione in va parti o organi di un corpo raggiungibili attraverso condotti o lumi naturali. T essi sono pure noti i cateteri a fibre ottiche per la termo-ablazione media raggi laser. In questi cateteri, le fibre ottiche si estendono secondo la lunghez The present utility model generally relates to fiber optic catheters for use in the medical and surgical field, and refers in particular to a fiber optic catheter for thermo-ablation by las In the field of medical and surgical devices currently There are also known catheters for carrying out thermo-ablation operations in various parts or organs of a body which can be reached through natural ducts or lumens. There are also known fiber optic catheters for the average thermal ablation of laser beams. In these catheters, the optical fibers extend in length
del catetere da un connettore prossimale collegabile ad una macchina laser fino ad un’estremità distale dove le fibre ottiche sono esposte per l’irradiazione della parte da trattare. of the catheter from a proximal connector that can be connected to a laser machine up to a distal end where the optical fibers are exposed for the irradiation of the part to be treated.
Tuttavia, in una tale forma di realizzazione, l’irradiazione desiderata avviene attraverso le estremità libere delle fibre ottiche e sostanzialmente è diretta solo frontalmente, in avanti oltre la parte distale del catetere. Taluni interventi di termo-ablazione mediante raggi laser possono invece richiedere un’irradiazione essenzialmente radiale, a guisa di corona circolare attorno al catetere, azione che i cateteri di tipo noto non sono in grado di attuare. However, in such an embodiment, the desired irradiation occurs through the free ends of the optical fibers and is essentially directed only frontally, forward beyond the distal part of the catheter. Some thermo-ablation interventions using laser beams may instead require essentially radial irradiation, in the form of a circular crown around the catheter, an action that known catheters are not able to perform.
3 miLaaL· s.i.i. 3 miLaaL · s.i.i.
Il presente trovato è rivolto a rimediare ad una tale mancanza. E è infatti suo scopo principale di fornire un catetere con una particolare e innovativa combinazione di elementi funzionali che permetta un’irradiazione prevalentemente radiale per trattamenti di termo-ablazione da effettuarsi attorno al catetere. Un altro scopo del trovato è di fornire un catetere in grado di ricevere aggiuntivamente almeno una fibra ottica per un irraggiamento laser di termo-ablazione anche frontale. The present invention is aimed at remedying such a deficiency. In fact, its main purpose is to provide a catheter with a particular and innovative combination of functional elements that allows a predominantly radial irradiation for thermo-ablation treatments to be carried out around the catheter. Another object of the invention is to provide a catheter capable of additionally receiving at least one optical fiber for thermal ablation laser irradiation, including frontal.
Detti scopi e gli impliciti vantaggi che ne derivano sono raggiunti con un catetere a fibre ottiche collegabile ad una sorgente laser, nel quale le estremità distali delle fibre ottiche sono troncate obliquamente e associate complementarmente ad una superficie riflettente definita da un puntale ogivale posto all’estremità ditale del catetere, in modo che i raggi laser che percorrono le fibre ottiche siano riflessi lateralmente verso l’esterno dal catetere stesso. Said purposes and the implicit advantages deriving from them are achieved with an optical fiber catheter connectable to a laser source, in which the distal ends of the optical fibers are truncated obliquely and complementarily associated with a reflecting surface defined by an ogival tip placed at the end. thimble of the catheter, so that the laser rays that travel through the optical fibers are reflected laterally outwards from the catheter itself.
Il catetere può essere attraversato o non da un foro longitudinale. Quando presente, un tale foro è utilizzabile eventualmente per infilarvi e spostarvi un filo guida o per alloggiarvi almeno una fibra ottica aggiuntiva per un’irradiazione anche in fronte al catetere. The catheter may or may not be traversed by a longitudinal hole. When present, such a hole can possibly be used to insert and move a guide wire or to house at least one additional optical fiber for irradiation also in front of the catheter.
Maggiori dettagli del trovato risulteranno comunque evidenti del seguito della presente descrizione fatta con riferimento agli allegati disegni, indicativi e non limitativi, nei quali: Further details of the invention will in any case become evident from the rest of the present description made with reference to the accompanying drawings, indicative and not limiting, in which:
la Fig. 1 mostra una vista d’assieme di un catetere a fibre ottiche; la Fig. 2 mostra, ingrandita, una vista di lato della parte distale del catetere della Fig. 1 ; Fig. 1 shows an overall view of an optical fiber catheter; Fig. 2 shows, enlarged, a side view of the distal part of the catheter of Fig. 1;
la Fig 3 mostra una sezione longitudinale ulteriormente ingrandita della parte distale del catetere rappresentato nella Fig. 2; Fig 3 shows a further enlarged longitudinal section of the distal part of the catheter shown in Fig. 2;
4 BIESSE s.r.i. 4 BIESSE s.r.i.
la Fig. 4 mostra una sezione trasversale secondo le frecce A - A sulla Fig. 2 di un catetere a quattro fibre; Fig. 4 shows a cross section according to the arrows A - A on Fig. 2 of a four-fiber catheter;
la Fig. 5 mostra un’analoga sezione trasversale di un catetere a sei fibre ottiche; e Fig. 5 shows a similar cross section of a six-fiber optic catheter; And
la Fig. 6 mostra una sezione trasversale a livello del puntale metallico secondo le frecce B - B sulla Fig. 2. Fig. 6 shows a cross section at the level of the metal tip according to the arrows B - B on Fig. 2.
Il catetere qui proposto comprende un elemento centrale flessibile 11 , esteso in lunghezza secondo un asse longitudinale, attorno al quale sono parallelamente disposte delle fibre ottiche 12, la cui quantità può essere scelta a volontà. Negli esempi delle Fig. 4 e 5, le fibre ottiche sono in numero di quattro e sei, rispettivamente. The catheter proposed here comprises a flexible central element 11, extending in length along a longitudinal axis, around which optical fibers 12 are parallel arranged, the quantity of which can be chosen at will. In the examples of Figs. 4 and 5, the optical fibers are four and six in number, respectively.
L’elemento centrale 11 può essere a sezione piena, ma più preferibilmente tubolare così da definire un foro longitudinale 13. The central element 11 can have a solid section, but more preferably tubular so as to define a longitudinal hole 13.
Le fibre ottiche 12 si estendono da un’estremità prossimale 14 fino in prossimità ad un’estremità distale 15 dell’elemento centrale 11. Esse sono perifericamente racchiuse in una guaina di contenimento flessibile 16 e possono essere stabilizzate nella loro posizione con un materiale di riempimento o legante, quale una resina, posto tra la guaina e le fibre stesse. The optical fibers 12 extend from a proximal end 14 to near a distal end 15 of the central element 11. They are peripherally enclosed in a flexible containment sheath 16 and can be stabilized in their position with a filling material or binder, such as a resin, placed between the sheath and the fibers themselves.
All’estremità prossimale 14 le fibre ottiche 12 sono collegabili per il tramite di un connettore 17 ad una macchina generatrice di radiazioni laser -non rappresentata. At the proximal end 14 the optical fibers 12 can be connected through a connector 17 to a laser radiation generating machine - not shown.
In vicinanza della loro parte distale 15, le fibre ottiche 12 sono circondate da un anello di bloccaggio 18 che può essere, per esempio, in platino o oro e comunque in un materiale adatto e compatibile con la destinazione e l’uso del catetere. Nella loro parte distale 15, le fibre ottiche 12, In the vicinity of their distal part 15, the optical fibers 12 are surrounded by a locking ring 18 which can be, for example, in platinum or gold and in any case in a suitable material compatible with the destination and use of the catheter. In their distal part 15, the optical fibers 12,
BIESSE s.r.l. BIESSE s.r.l.
al di là dell’anello di bloccaggio 18, hanno un tratto esposto verso l’esterno e sono tagliate di sbieco, per risultare con un terminale obliquo 19. Come mostrato nella Fig. 3, il terminale obliquo 19 di ogni fibra ottica è inclinato dall’ esterno verso l’asse dell’elemento centrale e associato con una prospiciente superficie riflettente 20 parimenti inclinata. Questa superficie riflettente 20 è definita da un puntale metallico 21, di forma ogivale o simile, fissato all’estremità distale dell’elemento centrale 11. beyond the locking ring 18, they have a portion exposed to the outside and are cut at an angle, to result in an oblique terminal 19. As shown in Fig. 3, the oblique terminal 19 of each optical fiber is inclined from external towards the axis of the central element and associated with a facing reflecting surface 20 which is also inclined. This reflecting surface 20 is defined by a metal tip 21, of ogival shape or similar, fixed to the distal end of the central element 11.
Pertanto, le radiazioni laser che percorrono le fibre ottiche 12 vengono riflesse ed emesse lateralmente verso l’esterno del catetere, presso l’estremità distale di questo, attorno ad esso, irradiando la parte circostante da trattare mediante termo-ablazione. Therefore, the laser radiations that travel through the optical fibers 12 are reflected and emitted laterally towards the outside of the catheter, at the distal end of this, around it, irradiating the surrounding part to be treated by thermo-ablation.
L’angolo di inclinazione del terminale obliquo 19 di ogni fibra ottica 12 e corrispondentemente della superficie riflettente 20 può essere scelto a volontà in funzione della riflessione totale o parziale che si vuol ottenere. Un tale angolo di inclinazione può essere uguale per tutte le fibre ottiche dello stesso catetere oppure può variare per talune fibre ottiche rispetto ad altre, così da orientare diversamente il campo di emissione di raggi laser in risposta alle esigenze di irradiazione della parte da curare. The angle of inclination of the oblique terminal 19 of each optical fiber 12 and correspondingly of the reflecting surface 20 can be chosen at will according to the total or partial reflection to be obtained. Such an angle of inclination can be the same for all the optical fibers of the same catheter or it can vary for some optical fibers with respect to others, so as to orient the laser beam emission field differently in response to the irradiation needs of the part to be treated.
Quando il catetere è attraversato longitudinalmente da un foro 13, questo può essere usato per farvi passare un filo guida o anche per alloggiarvi almeno una fibra ottica aggiuntiva, questa non rappresentata, con un suo proprio terminale in fronte al puntale per corrispondere ad esigenze di irradiazione, ove utile, anche sul davanti del catetere per una termo-ablazione frontale. When the catheter is crossed longitudinally by a hole 13, this can be used to pass a guide wire through it or even to house at least one additional optical fiber, this not shown, with its own terminal in front of the tip to correspond to irradiation needs. , where useful, also on the front of the catheter for a frontal thermal ablation.
Claims (9)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBS20020029 ITBS20020029U1 (en) | 2002-03-05 | 2002-03-05 | FIBER OPTIC CATHETER FOR THERMAL-ABLATION |
| PCT/IT2003/000026 WO2003073950A1 (en) | 2002-03-05 | 2003-01-27 | Optical fibre catheter for thermal ablation |
| AU2003207997A AU2003207997A1 (en) | 2002-03-05 | 2003-01-27 | Optical fibre catheter for thermal ablation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBS20020029 ITBS20020029U1 (en) | 2002-03-05 | 2002-03-05 | FIBER OPTIC CATHETER FOR THERMAL-ABLATION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITBS20020029U1 true ITBS20020029U1 (en) | 2003-09-05 |
Family
ID=27773195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITBS20020029 ITBS20020029U1 (en) | 2002-03-05 | 2002-03-05 | FIBER OPTIC CATHETER FOR THERMAL-ABLATION |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2003207997A1 (en) |
| IT (1) | ITBS20020029U1 (en) |
| WO (1) | WO2003073950A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672961A (en) * | 1986-05-19 | 1987-06-16 | Davies David H | Retrolasing catheter and method |
| ATE159647T1 (en) * | 1989-07-31 | 1997-11-15 | Israel Barken | ULTRASONIC LASER SURGICAL DEVICE |
| DE4326037C2 (en) * | 1993-08-03 | 1997-01-16 | Dieter C Dr Med Goebel | Laser device |
| US5451221A (en) * | 1993-12-27 | 1995-09-19 | Cynosure, Inc. | Endoscopic light delivery system |
| DE60025087D1 (en) * | 1999-07-30 | 2006-02-02 | Terumo Corp | Laser irradiation apparatus |
-
2002
- 2002-03-05 IT ITBS20020029 patent/ITBS20020029U1/en unknown
-
2003
- 2003-01-27 WO PCT/IT2003/000026 patent/WO2003073950A1/en not_active Application Discontinuation
- 2003-01-27 AU AU2003207997A patent/AU2003207997A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003073950A1 (en) | 2003-09-12 |
| AU2003207997A1 (en) | 2003-09-16 |
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