CN2076858U - Multi-functional intravenous guide tube device - Google Patents

Abstract

The utility model relates to a multi-functional intravenous guide tube device, comprising a puncture needle and an indwelling catheter. The utility model is used for multiple terms of clinical medical works such as long-term venous fluid infusion, central venous pressure measurement, complete parenteral alimentation, etc. The utility model has the advantages of simple structure, convenient operation, etc., and satisfies the requirement of achieving bacterium-free and dust-free operation. At the same time, the utility model provides convenience for medical staff, shortens operation time and reduces the pain of a patient.

Description

Multi-functional intravenous guide tube device

This utility model relates to the conduit in the medical apparatus and instruments.

In the clinical medicine counterweight danger patient implement long-term vein fluid infusion, measurement of central venous pressure, fully during treatment means such as parenteral alimentation, need be to vein (particularly dark vein) puncture, and bury conduit underground at intravenous.At present, venipuncture and to bury conduit underground be to adopt puncture--guiding--telescopic method is carried out promptly earlier with behind the hollow metal puncture needle-penetration vein, is passed guiding steel wire from the hollow metal pin, enter vein and arrive appointed part; Withdraw from the metal puncture pin again, carry out skin expansion by guiding steel wire, withdraw from convergent divergent channel with the skin expansion pipe; By guiding steel wire the polyethylene conduit is imbedded in the vein again; Withdraw from seal wire again.Adopt this venipuncture, bury the method for conduit underground, because metal needle puncture, penetrate guiding steel wire, imbed process such as conduit all independent, separately carry out, so use very inconvenient, operating process is also very loaded down with trivial details, and require the operator to be skilled in technique, make troubles to the medical worker, also bring a lot of miseries for patient.In addition because the restriction of operational approach and apparatus, also make this operational approach be unfavorable for preventing dust, fungi-proofing.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of operation convenient continuously, and the multi-functional venous duct device that infection chance is reduced.

Technical essential of the present utility model is: this device is made up of puncture needle and inlying catheter, puncture needle comprises hollow steel needle and draw point seat, being with in the draw point outside can be along the indwelling trocar and the indwelling casing tube needle stand of its slip, combine closely for making indwelling trocar and draw point, can be free to slide again, the internal diameter of indwelling trocar should equal the external diameter of draw point.Inlying catheter comprises conduit and inserts the interior seal wire of conduit that the diameter of seal wire is less than the internal diameter of conduit.Be handled easily, be provided with holder, be provided with locking cap at an end of seal wire at an end of conduit.

Carry out under sealing and aseptic condition in order to make whole puncture, pipe laying process, this utility model also can be at the outer setting dirt-proof boot of conduit, the one end closure, the other end connects the dirt-proof boot holder, does not pacify an end outside of holder at conduit, is provided with bearing support, this bearing support can be divided into two and half lobes, and fashionable, an end inserts the dirt-proof boot holder, and the other end is with the bearing support medicated cap.

Conduit retainers of the present utility model is a funnel-form object, and the middle part caves inward, and there is a holder locker that can move at recess recess outside.

Operating process of the present utility model is such: draw point that is nested together and indwelling casing tube needle penetration are gone forward side by side into intravenous, withdraw from draw point; Again the conduit that is nested together and seal wire direct stationary are put the sleeve pipe needle stand and pass indwelling trocar and enter intravenous, and continue to be pushed into inward desired area; Withdraw from seal wire then, the intubate process finishes.Funnelform conduit retainers can make transfusion or other operation more convenient, and being positioned on holder locker outward can be locked at holder on the indwelling casing tube needle stand.Can be retained in intravenous for long periods behind this device one-time puncture, exposure can be used as stationary support at extracutaneous indwelling casing tube needle stand and is fixed on body surface with adhesive tape.The pipe guide of dirt-proof boot and bearing support is housed, and its operating process is similar and more convenient to top described method, and more can reach aseptic dustless requirement.When pushing conduit, can catch bearing support on the other hand, pinch on the other hand the outer dirt-proof boot of conduit, conduit is imbedded vein after, it is just passable to take off bearing support and dirt-proof boot holder.

This utility model compared with prior art has the following advantages: simple to operation, and can prevent dust effectively, fungi-proofing.This device is specially adapted to dark venous puncture and buries conduit underground, can be widely used in every clinical treatment work such as long-term venous transfusion, measurement of central venous pressure.

Below in conjunction with accompanying drawing this utility model is further described.

Fig. 1 is the puncture needle structural representation.

In Fig. 1, draw point 6 and indwelling trocar 5 are nested together, draw point seat 3 is equipped with handle with staying on the sleeve pipe needle stand 4, draw point 6 is the sharp-pointed circular hollow of an end, indwelling trocar 5 is made by medical macromolecular materials, have soft, flexible characteristics, its length should be no more than the sharp-pointed part of draw point 6.For protection draw point and handled easily, outside draw point 6, be equipped with sheath 7, be equipped with helmet 2 and locking cap 1 at an end of draw point 3.

Fig. 2 is the inlying catheter structural representation that dirt-proof boot 13, dirt-proof boot holder 10, bearing support 9 etc. have been installed.Seal wire 12 adopts guide wire commonly used in the present medical skill, and conduit 11 and seal wire 12 are nested together, and the same end of conduit 11 and seal wire 12 connects holder 14 and seal wire locking cap 16 respectively.Bearing support 9 is stuck in conduit 11 outsides, and an end inserts dirt-proof boot holder 10, and the other end is sharp mouth shape and is with bearing support medicated cap 8, and dirt-proof boot 13 is a clear films, and an end closure, the other end are bonded on the dirt-proof boot holder 14.

Claims (3)

1, a kind of multi-functional venous duct device, it is characterized in that: this device is made up of puncture needle and inlying catheter, puncture needle comprises hollow steel needle [6] and draw point seat [3], draw point [6] outside is with slidably indwelling trocar [5] and indwelling casing tube needle stand [4], the internal diameter of indwelling trocar [5] equals the external diameter of draw point [6], inlying catheter comprises conduit [11], in conduit [11], be equipped with seal wire [12], the diameter of seal wire is less than the internal diameter of conduit, one end of conduit [11] is connected and fixed device [14], and an end of seal wire [12] connects seal wire locking cap [16].

2, multi-functional venous duct device according to claim 1, it is characterized in that: the other end at described conduit ［ 11 ］ also can be provided with the bearing support ［ 9 ］ and the dirt-proof boot holder ［ 10 ］ that can be separated into two halves, one end of bearing support ［ 9 ］ stretches in the dirt-proof boot holder ［ 10 ］, the other end is with bearing support medicated cap ［ 8 ］, be provided with dirt-proof boot ［ 13 ］ in the outside of conduit ［ 11 ］, one end of dirt-proof boot is fixed in dirt-proof boot holder ［ 10 ］, other end sealing.

3, multi-functional venous duct device according to claim 1 and 2, it is characterized in that: described holder ［ 14 ］ is the funnel-form object of medial recess, is with movably holder locker ［ 15 ］ in the recess outside.