CN2214201Y

CN2214201Y - Weak laser inner irradiating therapeutic needle

Info

Publication number: CN2214201Y
Application number: CN 94219712
Authority: CN
Inventors: 王希平
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-29
Filing date: 1994-08-29
Publication date: 1995-12-06
Anticipated expiration: 2004-08-29

Abstract

The utility model discloses a 'weak laser inner irradiating' therapeutic needle, which is characterized in that optical fibre (1) is installed in the stainless steel needle tube (3) of a standard injection needle, and the optical fibre (1) and the needle tube (3) are tightly fitted (stuck fast); the end of the needle tube is sheathed with a positioning end (4) that can be well fitted with the output end of the laser, and the positioning end (4) can be the internal-plugging structure of an external cone or a housing type structure with an inner cone. The utility model combines a 'puncturing-retainable' needle and an 'irradiating' needle to a single 'puncturing-irradiating' needle, and provides condition for the disposable use with reduced production cost, simplified operation and enhanced therapy safety.

Description

Weak laser inner irradiating therapeutic needle

This utility model relates to a kind of treatment pin, more specifically says to relate to used puncture and the irradiation pin of a kind of " weak laser intravascular irradiation blood " therapy (Intravascular Laser Irradiation on Blood, ILIB method).

This therapy is that low-yield (＜5mw) the visible weak laser of long wave (as 632.8nm) that produces of laser instrument (as the He-Ne laser instrument) is introduced intravascular irradiation blood to reach a kind of physiotherapy of therapeutic purposes through optical fiber, laser accunputure to a kind of usefulness of The former Russian scholar invention.Progressively be applied to clinical in recent years at home.

All adopt puncture and sub irradiation from method of operating, so that laser is introduced in the blood vessel at present clinically.Operating process is as follows:

1. vascular puncture--keep put let the acupuncture needle remain at a certain point: with puncture shown in Figure 1--is put that let the acupuncture needle remain at a certain point and is organized and is set on the syringe, (suction heparin solution), make venipuncture procedure.Anticoagulant heparin is injected in success back, extracts puncture needle (1-1) then out, keeps and put that let the acupuncture needle remain at a certain point (1-2).

2. insert the irradiation pin: the irradiation pin as shown in Figure 2 that will sterilize (or claim " laser needle ") is located termination (2-4) and is inserted in fiber-optic output, will shine then in needle tubing (2-3) the insertion hole of putting that let the acupuncture needle remain at a certain point, can carry out irradiation treatment.

3. irradiation finish to be taken out the irradiation pin and is put that let the acupuncture needle remain at a certain point, will shine pin and immerse disinfectant solution and prepare against and reuse.

Adopt the main cause of aforesaid operations rules to have two: the one, continue to use traditional venous transfusion or blood sampling standard (entity material turnover blood vessel is arranged); The 2nd, put let the acupuncture needle remain at a certain point the existing product of Denging for using.

This mode of operation has following several problem as can be seen:

1), not only comparatively bothers but also be difficult to avoid fully and stain because operation will be extracted and insert in the puncture back out under the vessel open situation.

2) irradiation needle tubing (2-3) diameter that shines pin as can be seen from Figure 2 is subjected to putting let the acupuncture needle remain at a certain point internal diameter restriction, adds protective casing (2-2) thickness effect, and center optical fibers (2-1) is very thin to making.Therefore the rear portion of pin is the very high termination (2-4), coupling location of precision.This irradiation needle tubing (2-3) also will closely cooperate with the remaining needle endoporus.This has more increased manufacture difficulty, thereby makes the production cost of irradiation pin higher.Generally all want repeated multiple times to use (～～50 times).Because the layers of material coefficient of thermal expansion differs more, hospital can only adopt soaking disinfection, thereby has the hidden danger of cross infection.

The purpose of this utility model just provides a kind of puncture and the one-time treatment pin that shines unification in view of the above.It is characterized in that the optical fibers (can be silica fibre, optical glass optical fiber or plastic optical fiber) of having packed in the rustless steel needle tubing (band puncture inclined-plane) at the pumping needle of standard.Optical fiber and needle tubing close-fitting or with nontoxic glue bond (also can by needle tubing local deformation to clamp plastic optical fiber).The rear portion of needle tubing be with can with laser instrument or the good fit termination, location of laser transmission fiber outfan, the termination, location can be by plastics or metal interpolation type cylindrical cone, rear end face with cone flushes with needle tubing, and the termination, location also can be the jacket structure of band inner conical surface.Adopt this reason that unites two into one: the one, venipuncture is hospital's routine operation, success rate is very high.The 2nd, it is nanometer more than 600 that this therapy is introduced intravenous optical maser wavelength, its penetration depth in body very big (＞10mm), thereby do not have strict demand to penetrating the venous position.

Fig. 1 is existing puncture-put a let the acupuncture needle remain at a certain point sketch map;

Fig. 2 is existing irradiation pin sketch map;

Fig. 3 is a sketch map of the present utility model.

Below in conjunction with Fig. 3 a kind of embodiment is described.Rustless steel puncture needle tubing (3-3) front end is made the puncture inclined-plane routinely, and the needle tubing center is the thicker silica fibre of diameter (3-1), and optical fiber (3-1) outside is covered with soft sleeve pipe (3-2) to strengthen optical fiber toughness and intensity.Scribbling non-toxic adhesive between optical fiber (3-1) and the needle tubing (3-3) comes off to prevent optical fiber.The rear portion of pin manufactures the termination (3-4), interpolation type location that can cooperate with laser instrument or optical fibers outfan, ［ also can be jacket-type, as commercially available standard injection syringe needle tail structure ］.Termination, location (3-4) is the cylindrical cone of being made by plastics (as organic glass, polyethylene, polrvinyl chloride etc.), and this cone has higher position accuracy demand with puncture needle tubing (3-3).Optical fiber (3-1) can be simple optical fiber or multifiber bundle, fiber optic materials can be quartz, optical glass or leaded light plastics, optical fibers (3-1) head can not stretch out outside the puncture inclined-plane of needle tubing (3-3), optical fiber (3-1) afterbody flushes with needle tubing (3-3) rearward end, do not exceed the inclined-plane at cutting tip, in order to avoid influence puncture, its other end flushes with the needle tubing afterbody and through optics processed (as mill, throwing etc.), with the assurance coupling efficiency.As seen from the figure this utility model with former two the cover independently puncture, shine pin in conjunction with and one, this has not only reduced cost, more important is to have simplified operation, has prevented blood contamination danger.

This treatment pin can adopt strict cleaning measure (purification assembled condition) and disinfect (cobalt 60 irradiation or the sterilization of epoxy hexane) and guarantee safe and sanitary when specialization is produced.Owing to be disposable use, stopped cross infection, improved the safety of treatment.By Fig. 1, Fig. 2, Fig. 3 as can be seen, when the puncture needle diameter in the intravasation is identical, be that mid-let the acupuncture needle remain at a certain point the external diameter of external diameter and Fig. 1 of Fig. 3 pin is when identical, the diameter of the optical fibers among Fig. 3 (3-1) shines the diameter of the optical fiber (2-1) in the pin greater than Fig. 2, this has relaxed the coupling requirement of transmission laser, promptly reduced the accuracy of manufacture of pin shown in Figure 3, thereby the simplification that adds structure reduces production cost, created condition for disposable use.

Claims

1, a kind of weak laser internal radiation is with treating pin, it is characterized in that having packed in the rustless steel needle tubing (3-3) with the puncture inclined-plane can transmitted light optical fibers (3-1), optical fibers (3-1) cooperates closely (or with nontoxic gluing jail) with needle tubing (3-3), the rear portion of needle tubing (3-3) be with can with laser instrument or the good fit termination, location (3-4) of laser transmission fiber outfan, this termination, location (3-4) can be that this cone rear end face flushes with needle tubing (3-3) by plastics or metal interpolation type cylindrical cone.Termination, location (3-4) also can be the jacket-type structure of band internal conical surface.

2, weak laser irradiation according to claim 1 is characterized in that with the treatment pin optical fibers (3-1) can be simple optical fiber or multifiber bundle; Fiber optic materials can be quartzy ［ outside is covered with soft sleeve pipe (3-2) ］, optical glass or leaded light plastics; Optical fibers (3-1) head can not stretch out outside needle tubing (3-3) the puncture inclined-plane, and optical fiber (3-1) afterbody flushes with needle tubing (3-3) rearward end.