CN203436636U - Syringe needle with bionic-form point - Google Patents

Abstract

The utility model relates to a syringe needle with a bionic-form point, which is applied in the field of one-time intervention medical equipment for processes such as clinic transfusion, puncture and sampling and is characterized in that an external wall face (3) of the point or an inclined face (4) of the point of the syringe needle has a macro or micro bionic structure form; a bionic structure can be divided into a stripe type, a pit type and a ripple type; and the bionic form is added to the needle point in order to reduce friction borne by the point during injection and the puncture, reduce stimulation of the point to subcutaneous nerve endings during the puncture and realize pain relief.

Description

A kind of needle point has the syringe needle of bionical form

Technical field

This utility model relates to the syringe needle that a kind of needle point has bionical form.Be applied to the disposable interventional medical device field of the processes such as clinical transfusion, puncture and sampling.

Background technology

The interventional therapys such as drug injection, puncture sampling are the Main Means of clinical treatment.And inject, skin histology is damaged in piercing process, thereby teleneuron being experienced stimulate produces pain, the puzzlement that this process is brought to patient can not be ignored.Current people, pursue under the overall background of life Happiness, effectively reduce injection pain and be and reduce Medical fear, the raising people effective means of quality of life.Due to, the mankind, from birth vaccinate in beginning, just must start the injection pain problem in the face of coexisting with drug effect, and therefore, the injection, puncture pain and the body injury that effectively reduce patient are one of main directions of current medical device research.

At present, the existing research for drug injection pain mechanism of production shows, injection pain comes from syringe needle and thrusts the algogenic substance that skin discharges cell rupture.For induced pain mechanism, existing painless injection method mainly contains the injection of (1) micropin.Take microneedle array as representative, by reducing the mode of needle tubing diameter, effectively reduce skin injury area and algogenic substance and produce quantity, thereby realize painless injection object.But the advantage that micropin needle tubing diameter is little has limited the effect of drug absorption, thereby its scope of application has been confined to efficient, a small amount of drug injection when reducing pain.(2) Needleless injection.Utilize high-pressure spray that drug particles is directly squeezed into subcutaneous a kind of painless injection technology.But the required supplementary instrument of high-pressure spray is more, with high costs owing to realizing, so the popularization difficulty of Needleless injection is larger.(3) fast injection.Adopt inserting needle fast, push away medicine slow, pull out two fast one fast slow methods of pin, alleviate to a certain extent injection and keenly feel.But this method is subject to the impact of patient's subjective factors in actual applications, different patient's results of use are different, and effect is unstable.(4) laser injection.Utilize laser ablation trace epidermis, make insulin directly enter human body, reach painless object.But its applicable medicine is single, still can not promote on a large scale.(5) meridians are massaged and Acupressure.As its name suggests, be by manipulation of massage, to slow down a kind of technical skill of injection pain.But its effect is very not remarkable, and and be not suitable for everyone, as anemia of pregnant woman, thus can only as subtract pain supplementary means.(6) bionical needle injection.On needle tubing outer wall, be processed with spiral type, corrugated, zigzag or dimple-shaped biomimetic features, by reducing the mode of the frictional resistance between syringe needle and skin histology, reduce the stimulation to teleneuron in injection process, reach the object that subtracts pain.But the method is only considered the frictional resistance of needle tubing part, do not relate to the drag reduction of tip portion.And needle point penetration Resistance is generally 2-3 times of needle tubing frictional resistance, thus, the minimizing needle tubing frictional resistance that the penetration Resistance of minimizing needle point compares, meaning is more great.Therefore the utility model that, we this time propose has the syringe needle of bionical form for reducing the needle point of penetration Resistance.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned many disadvantages and the deficiency of existing painless injection mode, provides a kind of needle point to have the syringe needle of bionical form.By changing the mode of needle surface form, the frictional resistance in minimizing drug injection piercing process between needle point and skin histology, thus reduce the stimulation of injection process to teleneuron, reach the object that reduces injection pain.

Above-mentioned purpose of the present utility model is achieved through the following technical solutions, and accompanying drawings is as follows:

Needle point has a syringe needle for bionical form, and its needle point outside wall surface or pinpoint inclined plane have the biomimetic features of bionical form, and described bionical form is stripe-shaped, dimple-shaped or corrugated; By bionical form size, be divided into two kinds of macroscopic view, microcosmic; By bionical morphologic localization, be divided into two kinds of needle point outside wall surface, pinpoint inclined planes; Rectangular or the del of the cross section of the bionical form of described stripe-shaped; The cross section of the bionical form of described dimple-shaped is circular arc; The cross section of described corrugated bionical form is corrugated.Described stripe-shaped and corrugated biomimetic features, its arragement direction with needle shaft to vertical; Described dimple-shaped biomimetic features, the rectangular or rhombus of its arrangement mode on needle point.

Described biomimetic features being distributed as on needle point is whole or local.

When described biomimetic features is macroscopic form, the groove depth 0.01-0.05mm of striped form, groove width 0.01-0.10mm, spacing 0.02-0.10mm, the pit depth 0.01-0.05mm of pit form, diameter 0.01-0.10mm, spacing 0.02-0.10mm, the ripple's depth 0.01-0.05mm of ripple form, width 0.01-0.10mm, spacing 0.02-0.10mm.

When described biomimetic features is microscopic pattern, be etched or sandblast go material partial depth 1-10nm, width 1-10nm, spacing 1-20nm.

The processing method of macroscopic view biomimetic features form is laser ablation; The processing method of microcosmic biomimetic features form is sandblast or chemical etching.

Needle point has a syringe needle for bionical form, and needle point outside wall surface or the pinpoint inclined plane of described syringe needle have biomimetic features; According to bionical form, be divided into stripe-shaped, dimple-shaped, corrugated three kinds; According to bionical shape size, be divided into two kinds of macroscopic view, microcosmic.

This utility model is the syringe needle that needle point has bionical form, can be used for the biological tissue puncture injections such as intravenous needle, intramuscular injection pin, blood taking needle, living body sampling pin, body fluid drainage needle, medical intervention apparatus punctures.Its clinical occupation mode, method are identical with conventional syringe syringe needle, without special operational instructions for use.

Technique effect of the present utility model is:

This syringe needle, by processing biomimetic features form on the needle point outside wall surface at standard syringe syringe needle or pinpoint inclined plane, reduces the frictional resistance between needle point and skin histology, realizes the object that reduces pain when injection or puncture.Conventionally, in injection, in piercing process, pain mainly comes from the neural perception to algogenic substance, and algogenic substance comes from syringe needle and skin histology contact process destroyed histiocyte under the effect of frictional force between the two.The syringe needle on the disclosed needle point of this utility model with bionical form, can reduce the contact area of needle point and skin histology in injection, piercing process, reduce frictional resistance between the two, thereby histiocyte destructiveness is decreased, the algogenic substance discharging reduces, and injection pain reduces.

Accompanying drawing explanation

Fig. 1 (a) is needle head structure schematic diagram of the present utility model;

Fig. 1 (b) is the needle point partial enlarged drawing of Fig. 1 (a);

Fig. 1 (b1) is stripe-shaped on Fig. 1 (b) basis and corrugated pinpoint inclined plane biomimetic features partial enlarged drawing;

Fig. 1 (b2) is the dimple-shaped pinpoint inclined plane biomimetic features partial enlarged drawing on Fig. 1 (b) basis;

Fig. 1 (c) is the needle point partial enlarged drawing of Fig. 1 (a);

Fig. 1 (c1) is the stripe-shaped needle point outside wall surface biomimetic features partial enlarged drawing on Fig. 1 (c) basis;

Fig. 1 (c2) is the corrugated needle point outside wall surface biomimetic features partial enlarged drawing on Fig. 1 (c) basis;

Fig. 1 (c3) is the dimple-shaped needle point outside wall surface biomimetic features partial enlarged drawing on Fig. 1 (c) basis;

Fig. 1 (d1), (d2) are stripe-shaped biomimetic features cross section Local map;

Fig. 1 (d3) is dimple-shaped biomimetic features cross section Local map;

Fig. 1 (d4) is corrugated biomimetic features cross section Local map.

Fig. 2 (a) is dimple-shaped biomimetic features distribution mode schematic diagram: by the rectangular distribution;

Fig. 2 (b) is dimple-shaped biomimetic features distribution mode schematic diagram: by rhombus, distribute.

Fig. 3 (a1) be take the biomimetic features degree of depth, width, the spacing schematic diagram (pinpoint inclined plane) that cross section is example as zigzag striated structure;

Fig. 3 (a2) be take the biomimetic features degree of depth, width, the spacing schematic diagram (needle point outside wall surface) that cross section is example as zigzag striated structure;

Fig. 3 (b1) be take the biomimetic features degree of depth, diameter, the spacing schematic diagram (pinpoint inclined plane) that the dimple-shaped structure of distributed rectangular is example;

Fig. 3 (b2) be take the biomimetic features degree of depth, diameter, the spacing schematic diagram (needle point outside wall surface) that the dimple-shaped structure of distributed rectangular is example;

Fig. 3 (c1) is the degree of depth, width, the spacing schematic diagram (pinpoint inclined plane) of corrugated biomimetic features;

Fig. 3 (c2) is the degree of depth, width, the spacing schematic diagram (needle point outside wall surface) of corrugated biomimetic features;

Fig. 4 is the application schematic diagram in other types injection, puncture instrument.

In accompanying drawing 1, needle tubing Connection Block, 2, needle tubing surface, 3, needle point, 4, the bionical form on pinpoint inclined plane, 5, the range of work, 6, distributed rectangular, 7 rhombuses distribute, and 8, spacing, 9, width, 10, diameter, 11, the degree of depth, 12, sub-pin, 13, female pin, 14, bionic surface

The specific embodiment

Below in conjunction with accompanying drawing example illustrated, particular content of the present utility model and embodiment are further illustrated.

Needle point has a syringe needle for bionical form, the biomimetic features on syringe needle and needle point, consists of, and biomimetic features wherein, is divided into two kinds of both macro and micros by size; By shape, be divided into stripe-shaped, dimple-shaped, corrugated three kinds; Opsition dependent is divided into two kinds of needle point outside wall surface and pinpoint inclined planes.

The size range of pinpoint inclined plane biomimetic features: during macroscopic form, the groove depth 0.01-0.05mm of striped form, groove width 0.01-0.10mm, spacing 0.02-0.10mm, the pit depth 0.01-0.05mm of pit form, diameter 0.01-0.10mm, spacing 0.02-0.10mm, the ripple's depth 0.01-0.05mm of ripple form, width 0.01-0.10mm, spacing 0.02-0.10mm; During microscopic pattern, be etched or sandblast go material partial depth 1-10nm, width 1-10nm, spacing 1-20nm.

The distribution of biomimetic features can occupy whole needle points, also can only be present in part.

This utility model is the syringe needle that needle point has bionical form, on the medical interventional instruments such as the venoclysis needle that need use while can be applicable to the Chinese medicine injection of clinical treatment field, puncture sampling, intramuscular injection pin, blood taking needle, biopsy needle.Its clinical use is identical with conventional syringe syringe needle, without special operational instructions for use.

Feature of the present utility model is the biomimetic features form on needle point.Take intramuscular injection pin as example, on syringe needle needle point outside wall surface 3 or pinpoint inclined plane 4, there is biomimetic features, bionical female area account for needle surface long-pending 30% in, its depression distributes and can consult Fig. 1 (a～d4) and Fig. 2 (a～b).In clinical use, effect due to bionical shape depression on needle point, has reduced needle point and has thrust the real contact area in process and between skin histology, and histiocytic destructiveness in the process of thrusting is declined, the algogenic substance discharging reduces, and the stimulation of teleneuron is weakened.The disclosed syringe needle of this utility model, its using method and conventional syringe syringe needle are as good as, and user is not had to SOR, are subject to user because syringe needle penetration Resistance reduces, and the pain being subject to reduces.

Consult Fig. 4, the bionical form on needle point can be used for injection, the Centesis instruments such as venoclysis needle, biopsy male/female needle 12,13.Different according to syringe needle model, its biomimetic features arrangement mode can suitably be adjusted, but need the shared needle surface of the bionical recess of assurance to amass, is less than 30%.Its painless principle is identical, is all by reducing the mode of the real contact area between syringe needle and skin histology, realizes and subtracts pain effect.

Macroscopic view biomimetic features form can be obtained by laser ablation; Microcosmic biomimetic features form can be obtained by sandblast or chemical etching.

Claims (5)

1. needle point has a syringe needle for bionical form, and its needle point outside wall surface or pinpoint inclined plane have the biomimetic features of bionical form, it is characterized in that:

Described bionical form is stripe-shaped, dimple-shaped or corrugated; Bionical form size is two kinds of macroscopic view, microcosmic; Bionical morphologic localization is two kinds of needle point outside wall surface, pinpoint inclined planes; Rectangular or the del of the cross section of the bionical form of described stripe-shaped; The cross section of the bionical form of described dimple-shaped is circular arc; The cross section of described corrugated bionical form is corrugated.

2. a kind of needle point according to claim 1 has the syringe needle of bionical form, it is characterized in that: described stripe-shaped and corrugated bionical form, its arragement direction with needle shaft to vertical; The bionical form of described dimple-shaped, the rectangular or rhombus of its arrangement mode on needle point.

3. a kind of needle point according to claim 1 and 2 has the syringe needle of bionical form, it is characterized in that: described biomimetic features being distributed as on needle point is whole or local.

4. a kind of needle point according to claim 3 has the syringe needle of bionical form, it is characterized in that:

When described biomimetic features is macroscopic form, the groove depth 0.01-0.05mm of striped form, groove width 0.01-0.10mm, spacing 0.02-0.10mm, the pit depth 0.01-0.05mm of pit form, diameter 0.01-0.10mm, spacing 0.02-0.10mm, the ripple's depth 0.01-0.05mm of ripple form, width 0.01-0.10mm, spacing 0.02-0.10mm.

5. a kind of needle point according to claim 3 has the syringe needle of bionical form, it is characterized in that:

When described biomimetic features is microscopic pattern, be etched or sandblast go material partial depth 1-10nm, width 1-10nm, spacing 1-20nm.

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