Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
93 words
A laser catheter for directing a laser beam to an affected part inside a living body, comprising: a catheter tube (1) having a smooth inner surface; a window (3) aligned with the catheter tube (1) and attached to one end of it; a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it; and, a transparent liquid (4) injected into the catheter tube (1) from the liquid injection port (2), the liquid (4) having a greater refractive index than that of the catheter tube (1).
Claim 2
Dependent Claim
93 words
A laser catheter for directing a laser beam to an affected part inside a living body, comprising: a catheter tube (1) having a smooth inner surface; a window (3) aligned with the catheter tube (1) and attached to one end of it; a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it; and, a transparent liquid (4) injected into the catheter tube (1) from the liquid injection port (2), the liquid (4) having a greater refractive index than that of the catheter tube (1).
Claim 3
Dependent Claim
25 words
A laser catheter according to Claim 1, wherein the catheter tube (1) is made from tetrafluoroethylene-hexafluoropropylene copolymer or tetrafluoroethylene resin or methacrylate resin containing fluorine.
Claim 4
Dependent Claim
30 words
A laser catheter according to Claim 1 or 2, wherein the liquid (4) is either glycerin or a mixture of glycerin and a physiological saline or an isotonic dextrose solution.
Claim 5
Dependent Claim
104 words
A laser catheter for removing obstacles from blood vessels comprising:- a laser; a transparent catheter tube (1) having a smooth inner surface; a window (3) at one end of the catheter tube (1) aligned with the inside of it to admit light (5) from the laser into the inside of it; a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it; and, a transparent liquid (4) for injection into the catheter tube (1) via the liquid injection port (2), the transparent liquid (4) having a greater refractive index than that of the catheter tube (1).
Claim 6
Dependent Claim
104 words
A laser catheter for removing obstacles from blood vessels comprising:- a laser; a transparent catheter tube (1) having a smooth inner surface; a window (3) at one end of the catheter tube (1) aligned with the inside of it to admit light (5) from the laser into the inside of it; a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it; and, a transparent liquid (4) for injection into the catheter tube (1) via the liquid injection port (2), the transparent liquid (4) having a greater refractive index than that of the catheter tube (1).
Claim 7
Dependent Claim
27 words
A laser catheter according to Claim 4, wherein the laser is one operating in the visible region or in the near infrared region of the electromagnetic spectrum.
Claim 8
Dependent Claim
69 words
A laser catheter for surgical, therapeutic or diagnostic use comprising:- a transparent catheter tube (1) having a smooth inner surface; a window (3) at one end of the catheter tube (1) aligned with the inside of it to admit light (5) from the laser into the inside of it; and, a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it.
Claim 9
Dependent Claim
69 words
A laser catheter for surgical, therapeutic or diagnostic use comprising:- a transparent catheter tube (1) having a smooth inner surface; a window (3) at one end of the catheter tube (1) aligned with the inside of it to admit light (5) from the laser into the inside of it; and, a liquid injection port (2) at the one end of the catheter tube (1) for injecting liquid into it.