CN208464221U - A kind of Novel puncture needle - Google Patents

Abstract

The utility model relates to a kind of Novel puncture needle, remaining needle is easy the problem of bending knots in the existing puncture process of effective solution；Its technical solution solved includes the needle core of puncture needle, needle core outer sheath is equipped with remaining needle, remaining needle is affixed with needle core periphery to be merged and can horizontally slip on needle core, the rear side of remaining needle is equipped with fixed push plate, seal wire is equipped with inside needle core, seal wire can move left and right inside needle core and the hardness of seal wire is less than the hardness of needle core greater than the hardness of remaining needle, and the periphery of seal wire is equipped with one and is axially arranged with guide groove along it, and the periphery of seal wire is equipped with one and is axially arranged with guide groove along it；The utility model is more convenient and humanized.

Description

A kind of Novel puncture needle

Technical field

The utility model relates to medical instruments field, especially a kind of Novel puncture needle.

Background technique

Puncture technique is widely applied on clinical medicine at present, and existing puncture needle does not have with common injection needle core There is any difference, but be directed to some special puncture needles and generally have remaining needle, this remaining needle in the process of work can Puncture pin puncture is followed to enter first intravascular, to interior promotion remaining needle after seeing and puncturing successfully, so that remaining needle stays in It is intravascular, safer side is provided to intravascular conveying medical fluid to be lasting in the blood vessels by soft remaining needle indwelling Method is effectively reduced due to medical staff the elbow shake when carrying out puncture injection and causes destruction to patient's blood vessel.

But this puncture needle has a kind of defect, and after puncture needle passes through blood vessel and during seeing blood back, inwardly push is stayed When setting needle, directly bending knotting results in blockage after needle guard touches the vascular wall of opposite side due to too soft, and It causes to be administered by puncture needle, at this time if repeating inwardly to will cause the destruction to needle guard into puncture needle and have can The destruction of blood vessel can be will cause.

The utility model provides a kind of Novel puncture needle to solve problem above.

Utility model content

For above situation, for the defect for overcoming the prior art, the utility model provides a kind of Novel puncture needle, effectively Solve the problems, such as that remaining needle is easy bending knotting in existing puncture process.

Its technical solution solved the problems, such as includes the needle core of puncture needle, and needle core outer sheath is equipped with remaining needle, remaining needle and needle Core periphery is affixed merging and can horizontally slip on needle core, and the rear side of remaining needle is equipped with fixed push plate, is equipped with seal wire inside needle core, Seal wire can move left and right inside needle core and the hardness of seal wire is less than the hardness of needle core, the outer circle of seal wire greater than the hardness of remaining needle Face is equipped with one and is axially arranged with guide groove along it.

The utility model is novel, clever structure, practical, by the seal wire for being provided with guide groove in puncture needle To solve the problems, such as that the puncture pin puncture caused by remaining needle bending in the blood vessels knots is unsuccessful.

Detailed description of the invention

Fig. 1 is the main view sectional view of the utility model.

Fig. 2 is the right pseudosection of the utility model.

Specific embodiment

Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.

It include the needle core 1 of puncture needle by Fig. 1 the utility model known to, 1 outer sheath of needle core is equipped with remaining needle 2, remaining needle 2 It is affixed with 1 periphery of needle core and merges and can horizontally slip on needle core 1, the rear side of remaining needle 2, which is equipped with, fixes push plate 3, inside needle core 1 Equipped with seal wire 4, seal wire 4 can move left and right inside needle core 1 and the hardness of seal wire 4 is greater than the hardness of remaining needle 2 less than needle core 1 Hardness, the periphery of seal wire 4 are equipped with one and are axially arranged with guide groove 5 along it.

In order to realize the propulsion effect of needle core 1, the rear side of the needle core 1 is equipped with handle 6, by holding handle 6 for needle core 1, seal wire 4 and remaining needle 2 push to the intravascular indwelling effect to realize puncture and remaining needle 2.

The specifically used process of utility model: seal wire 4 should be inserted into inside needle core 1 by the present apparatus first when in use, and By being placed in seal wire 4 in needle core 1, and guarantee that one end that seal wire 4 is placed in inside needle core 1 is concordant with remaining needle 2.

Handle 6 is held when specifically used again and is pierced by skin needle core 1 intravascular, passes through the observation blood back shape of guide groove 5 Condition, after there is blood back, then the hand steered fixed push plate 3 and present apparatus made is temporarily fixed pushes seal wire 4 to make seal wire 4 along needle Core 1 enters intravascular, turns after making seal wire 4 touch the vascular wall of opposite side due to the hardness of seal wire 4 itself, and suitable Vascular wall advance.

After seal wire 4 is made in order in the blood vessels, push fixed push plate 3 that fixed push plate 3 is made to drive remaining needle 2 to blood vessel forward Interior propulsion, in remaining needle 2 to during intravascular propulsion, remaining needle 2 can enter blood vessel along the direction of seal wire 4, and avoid There is the phenomenon that bending knotting after touching opposite side vascular wall in remaining needle 2.

After completing to set that let the acupuncture needle remain at a certain point 2 propulsion, seal wire 4 is slowly extracted, then needle core 1 is being extracted, remaining needle 2 is being fixed, i.e., Complete this puncture.

In the actual puncture process, it may appear that puncture needle has just passed through side vascular wall, is pushing ahead remaining needle 2 at this time When since apart from opposite side vascular wall, also farther out, 2 outreach process of remaining needle encounters opposite side during propulsion It easily knots after vascular wall and bending can't carry out turning along vascular wall under the action of vascular wall, the present apparatus passes through hardness Seal wire 4 greater than remaining needle 2 realizes the Auxiliary support to remaining needle 2, to facilitate the propulsion of remaining needle 2.

Remaining needle 2 also will appear bending phenomenon when promoting when needle core 1 occur and puncturing too deep, by leading Making in order for silk 4 can effectively reduce this bending phenomenon.

By can effectively solve puncture needle in the seal wire 4 that installation hardness is placed between remaining needle 2 and needle core 1 in puncture needle Penetrate vascular wall it is relatively deep and shallower when remaining needle 2 the phenomenon that being easy to appear knotting bending.

The utility model advantage: the utility model is novel, and clever structure is practical, by setting in puncture needle The seal wire with guide groove is set to solve the problems, such as that the puncture pin puncture caused by remaining needle bending in the blood vessels knots is unsuccessful.

Claims (2)

1. a kind of Novel puncture needle, the needle core (1) including puncture needle, which is characterized in that needle core (1) outer sheath is equipped with indwelling Needle (2), remaining needle (2) is affixed with needle core (1) periphery to be merged and can horizontally slip on needle core (1), and remaining needle is set on rear side of (2) Have fixed push plate (3), be equipped with seal wire (4) inside needle core (1), seal wire (4) can move left and right inside needle core (1) and seal wire (4) Hardness be greater than the hardness of remaining needle (2) and be less than the hardness of needle core (1), the periphery of seal wire (4) is equipped with one along its axial direction Equipped with guide groove (5).

2. a kind of Novel puncture needle according to claim 1, which is characterized in that the rear side of the needle core (1) is equipped with handle (6).