CN2252011Y - Disposable optical-fibre needle - Google Patents

Abstract

The utility model relates to a disposable optical fiber needle, which is an improvement of the existing non disposable optical fiber needle, comprising a core body (7) and a needle inserting body (8), wherein, a sheath-shaped body is sheathed out of the core body (7); the sheath-shaped body is composed of a needle tube (9) and a needle seat (10); the core body (7) is a bare optical fiber or an optical fiber provided with a protective layer; the needle inserting body (8) is inosculated and fixed with the tail of the needle seat (10); the side of the needle seat (10) is provided with an air hole (11). The utility model has reasonable structure, convenient operation and low cost. The utility model can use the light for irradiating a consequently can be used for pharmacotherapy. The utility model can be used once.

Description

Disposable optical fiber pin

The optical fiber pin is the biography optical element in the laser medical device, belongs to a device in the laser medical device, and its major function is that laser or other light (as ultraviolet, infrared etc.) are imported in the body, to implement laser medicines such as acupuncture point deep irradiation or intravascular irradiation.

When laser medicine, for the optical fiber pin is introduced in deep, acupuncture point or the blood vessel, must use remaining needle at present, the price of remaining needle own is higher, has therefore increased medical expense, and operation is also inconvenient.

Existing remaining needle structure is as follows: the part (see figure 1) is kept somewhere by first, and it comprises plastic tube (1) and keeps somewhere needle stand (2); Second portion is the remaining needle needle body, and it comprises draw point (3) and transparent plastic seat (4) (see figure 2); Third part is a stopper, and it is plastic plug (a 5) (see figure 3) that has gas permeable material (6).The existing fiber needle construction is as figure (4), and it comprises core body (7) and contact pin body (8).

Using method is as follows: at first stopper (5) is filled in the plastic seat (4), draw point (3) is inserted in the plastic tube (1) of keeping somewhere part, together insert draw point (3) and plastic tube (1) in the patient body by draw point (3) needle point, can observe the blood back situation from transparent plastic seat (4), behind affirmation needle point intravasation, draw point (3) is extracted, and remaining needle is retained in the patient body, the core body (7) of optical fiber pin is injected in the plastic tube (1) of keeping somewhere part, import laser or other light and treat.As other medicines treatment such as will infuse, also need the optical fiber pin is withdrawed from, changing transfusion device again carries out, and operation is extremely inconvenient.Use though but the optical fiber pin is a repeated multiple times, yet remaining needle can only be disposable that therefore every treatment one less important consumption one cover remaining needle causes medical expense too high like this.Because the repeated multiple times of optical fiber pin is used, also increased the possibility of patient's cross infection in addition, above various shortcoming has influenced applying of this new and high technology Therapeutic Method greatly.

The purpose of this utility model is the problem at above-mentioned existence, proposes a kind of simple in structure, cheap, function is better, disposable optical fiber pin easy and simple to handle, to be implemented in the use of abolishing remaining needle in the laser therapy, reduce medical expense, reduce cross infection.

Technical solution of the present utility model is as follows: it comprises the optical fiber pin of being made up of core body (7) and contact pin body (8), outside the optical fiber pin, be with a sheath shape body, sheath shape body is made of needle tubing (9) and needle stand (10) two parts, core body (7) is bare fibre or the optical fiber that has sheath, and contact pin body (8) is identical and fixing with needle stand (10) afterbody of sheath shape body; The side of needle stand (10) has an air-vent (11).

Core body (7) is the element of transmission laser or other light, and contact pin body (8) is that core body (7) is fixed on the needle stand (10) of sheath shape body, core body (7) and contact pin body (8) be make through accurate location coaxial mutually.For the light input end that makes core body (7) and the light output end of optical fiber efficiently are coupled, the light input end of optical fiber (7) can be total to end face with contact pin body (8) afterbody, (seeing Fig. 5, Fig. 7) also can stretch out beyond the end face and directly with laser or other light source (see figure 6) that is coupled, obtaining higher coupling efficiency, or still with the light output end coupling of optical fiber.The needle tubing (9) of sheath shape body can be successfully with in core body (7) the introducing body or in the blood vessel.After contact pin body (8) is fixed on the needle stand (10), between needle tubing (9) and needle stand (10), just formed an airtight cavity.An air-vent (11) is left in the side of needle stand (10), gas permeable material (12) can be housed on it or establish little stopple (13), and the exhaust channel so that blood back to be provided also is simultaneously the liquid-transport pipe-line interface when implementing Drug therapy.Needle stand (10) mainly is convenient to operator and is observed blood back by transparent or semitransparent material.

Adopt the optical fiber pin of the disposable effect of technical solutions of the utility model manufacturing, original optical fiber pin and the various remaining needle of member are organically combined together, greatly reduce and make cost, realized disposable use.The air-vent that it is provided with can be implemented in laser or other light-struck Drug therapy that imposes simultaneously, has increased the function of use of optical fiber pin.Because it is reasonable in design, has simplified medical worker's operating process greatly, it will promote popularizing and promoting of this new and high technology Therapeutic Method.

Fig. 1 is indwelling part sketch map, 1-be plastic tube, 2-for keeping somewhere the part needle stand.

Fig. 2 is a remaining needle needle body sketch map, 3-draw point, 4-plastic seat.

Fig. 3 is the stopper sketch map, 5-plastic plug, 6-gas permeable material.

Fig. 4 is an existing fiber pin sketch map, 7-core body, 8-contact pin body.

Fig. 5, Fig. 6, Fig. 7 are this utility model optical fiber pin sketch map, 9-needle tubing wherein, 10-needle stand, 11-air-vent, 12-gas permeable material, 13-little stopple.

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 6, needle tubing (9) is the injection needle tubing of internal diameter Φ=0.6mm, and needle stand (10) is a transparent medical grade plastic.Core body (7) optical fiber filament diameter Φ=0.25mm, its outside has the rustless steel sheath of Φ=0.04mm.Core body (7) two ends end face is through fine gtinding and polishing, and contact pin body (8) is the medical plastic spare of Φ=4mm, and air-vent (11) Φ=2mm is coated with breathable adhesive tape (12) on it.This is disposable to use optical fiber to be directed to wavelength can to reach 90% as the light transmissioning efficiency of 6328A ° He-Ne laser.It is disposable optical fiber pin.

Claims (3)

1, disposable optical fiber pin, it comprises core body (7) and contact pin body (8), it is characterized in that outside core body (7), being with a sheath shape body, sheath shape body is made of needle tubing (9) and needle stand (10) two parts, core body (7) is bare fibre or the optical fiber that has sheath, contact pin body (8) is identical fixing with needle stand (10) afterbody of sheath shape body, and the side of needle stand (10) has an air-vent (11).

2, disposable optical fiber pin according to claim 1 is characterized in that the light input end of core body (7) can be total to end face with contact pin body (8), also can stretch out outside the end face of contact pin body (8).

3, disposable optical fiber pin according to claim 1 and 2 is characterized in that on the air-vent (11) gas permeable material (12) being housed, and also can be provided with a little stopple (13).

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