CN216535464U - Ultrasonic guided blood vessel puncture needle - Google Patents

Abstract

The utility model discloses an ultrasonic guided blood vessel puncture needle, which comprises a needle core and a needle sleeve, wherein the needle core comprises a needle body and a needle point, the front end of the needle body is integrally formed by ultrasonic strong echo materials, the outer wall of the needle body, which is close to the needle point, is provided with a first strong echo part which generates strong echo under the action of ultrasonic, the needle sleeve is provided with a plurality of second strong echo parts at intervals along the length direction, the needle point penetrates out of the needle sleeve, the needle sleeve is sleeved outside the needle body, the part from a first second strong echo part on the needle sleeve to the foremost end of the needle sleeve is overlapped with the first strong echo part, and the front edge of the first second strong echo part is overlapped with the rear edge of the first strong echo part. The needle point of the utility model is made of strong echo material, the needle body is provided with a first strong echo part adjacent to the needle point, the needle sleeve is provided with a second strong echo part at intervals, and the needle point can be accurately positioned and the shape of the puncture needle can be captured under the ultrasonic guidance.

Description

Ultrasonic guided blood vessel puncture needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic guided blood vessel puncture needle.

Background

At present, traditional blood vessel puncture needle in the market, the needle body is mostly even material, can not accurately judge pjncture needle tip position under the supersound guide, and during the guide puncture, peripheral organ, blood vessel, nerve, lymph node damage complication incidence is high, and is higher to piercing technical requirement, especially to the little needle of piercing that the diameter is thinner, during the relatively deep blood vessel puncture in position, often catch pjncture needle tip position more difficult during the supersound guide puncture.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ultrasonic guided blood vessel puncture needle, aiming at solving the problems that the position of the tip of a puncture needle head is difficult to judge when the existing blood vessel puncture needle is subjected to ultrasonic guided puncture, and the like.

In order to achieve the technical purpose, the utility model discloses an ultrasonic guided blood vessel puncture needle, which comprises a needle core and a needle sleeve,

the needle core comprises a needle body and a needle point which is integrally formed by ultrasonic strong echo materials at the front end of the needle body, a first strong echo part which generates strong echo under the ultrasonic action is arranged on the outer wall of the needle body close to the needle point,

the needle sleeve is provided with a plurality of second strong echo parts at intervals along the length direction, the needle point penetrates through the needle sleeve, the needle sleeve is sleeved outside the needle body, the part from the first second strong echo part on the needle sleeve to the foremost end of the needle sleeve is overlapped with the first strong echo part, and the front edge of the first second strong echo part is overlapped with the rear edge of the first strong echo part.

Further, the first hyperechoic component is a frosted layer, a textured layer, or a first hyperechoic coating.

Further, the first hyperechoic coating is a titanium metal coating.

Further, the second hyperechoic component is a second hyperechoic coating coated on the inner wall or the outer wall of the needle sleeve.

Further, the second hyperechoic coating is a titanium metal coating.

Further, the needle tip is integrally formed by titanium metal.

Further, the length of the first hyperechoic component is 1.8 mm-2.3 mm.

The utility model has the beneficial effects that:

the needle point of the ultrasonic guided blood vessel puncture needle is made of a strong echo material, the strong echo part is arranged on the needle body close to the needle point, the strong echo part is arranged on the needle sleeve at intervals, and the position of the needle point can be accurately positioned and the deformation of the puncture needle can be captured under the ultrasonic guidance.

Drawings

FIG. 1 is a schematic structural view of an ultrasound guided blood vessel puncture needle in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural view of the core of an ultrasound guided blood vessel puncture needle in accordance with an embodiment of the present invention;

fig. 3 is a structural schematic view of the needle sheath of the ultrasound guided blood vessel puncture needle according to the embodiment of the utility model.

In the figure, the position of the upper end of the main shaft,

1. a needle core; 11. a needle tip; 12. a needle body; 13. a first hyperechoic component; 14. a limiting block; 2. a needle sleeve; 21. a second hyperechoic component.

Detailed Description

The ultrasonic guided blood vessel puncture needle provided by the utility model is explained and explained in detail in the following with the attached drawings of the specification.

As shown in fig. 1, this embodiment specifically discloses an ultrasonic guidance blood vessel puncture needle, including nook closing member 1 and needle cover 2, the cover of needle cover 2 is outside at nook closing member 1, and the afterbody of nook closing member 1 is equipped with stopper 14, and stopper 14 is square plastics material, and the length of side of stopper 14 is greater than the internal diameter of needle cover 2, and stopper 14 card is outside needle cover 2, with nook closing member 1 spacing in needle cover 2, avoids nook closing member 1 to continue to slide to needle cover 2, makes up nook closing member 1 and needle cover 2 as an organic whole.

As shown in fig. 1 and 2, the needle core 1 includes a needle body 12 and a needle tip 11 formed by integrally molding an ultrasonic hyperechoic material at the front end of the needle body 12, in this embodiment, the ultrasonic hyperechoic material is titanium metal, and the needle tip 11 is formed by integrally molding titanium metal. The needle body 12 is made of steel, a first strong echo part 13 which generates strong echo under the action of ultrasound is arranged on the outer wall of the needle body 12 close to the needle point 11, namely the head part of the needle body 12, the first strong echo part 13 is close to the needle point 11, no gap is arranged in the middle, and the length of the first strong echo part 13 is 1.8 mm-2.3 mm. The length of the first hyperechoic feature 13 refers to the length along the length of the needle body 12 and is preferably 2.0 mm. The strong echo needle point 11 and the first strong echo part 13 on the head part of the needle body 12 can accurately position the position of the needle point 11 under the ultrasonic guidance, and the ultrasonic guidance puncture is accurately carried out, so that the incidence rate of complications is reduced. The surface of the needle body 12 is smooth except for the first hyperechoic feature 13 on the remaining part of the needle body 12.

The limiting block 14 is provided with a marking surface, and the marking surface and the inclined surface of the needle point 11 are in the same direction. The edge of the needle tip 11 is polished smooth, so that complications caused by scraping of the hydrophilic coating of the ultra-smooth guide wire are avoided.

As shown in fig. 1 and 3, the needle sleeve 2 is provided with a plurality of second hyperechoic parts 21 at intervals along the length direction, and the number of the second hyperechoic parts 21 can be set according to clinical needs, and is at least 2. The spacing between all of the second hyperechoic components 21 may be the same or different. The second hyperechoic component 21 closest to the head of the sleeve 2 is the first hyperechoic component which is located at a distance from the head end of the sleeve 2 which is the same as the length of the first hyperechoic component 13. After the needle point 11 penetrates into the needle sleeve 2, the needle point 11 penetrates out of the needle sleeve 2, the needle point 11 is located outside the needle sleeve 2, the needle sleeve 2 is sleeved outside the needle body 12, the part from the first second hyperechoic component 21 on the needle sleeve 2 to the foremost end of the needle sleeve 2 is overlapped with the first hyperechoic component 13, and the front edge of the first second hyperechoic component 21 is overlapped with the rear edge of the first hyperechoic component 13. The second hyperechoic component 21 is prevented from covering the first hyperechoic component 13, so that the interference on the positioning of the needle tip 11 is avoided, and the position of the needle tip 11 can be accurately positioned.

The first hyperechoic component 13 is a frosted layer, a textured layer or a first hyperechoic coating. Furthermore, the first strong echo coating is a titanium metal coating, and the echo intensity of the titanium metal is high, so that the positioning is more accurate.

The second hyperechoic member 21 is a second hyperechoic coating applied to the inner or outer wall of the sleeve 2. Further, the second hyperechoic coating is a titanium metal coating. The setting of second hyperechoic component can confirm that the pjncture needle is out of shape, and second hyperechoic component 21 chooses for use the hyperechoic material coating moreover, and the surface is smooth, avoids closing on damage such as tissue, organ, blood vessel, nerve, more accurate.

The ultrasonic guided blood vessel puncture needle can be designed into various diameters and various length specifications, and the specific diameter and length dimensions are designed according to actual clinical requirements. The puncture needle of the present embodiment is designed to have a gauge of 18G × 7cm and 21G × 7cm, wherein G is the BWG gauge specification of Bermingham. The outer diameter of 18G is 1.20mm, the outer diameter of 21G is 0.80mm, the guide wire passing and guiding of 0.018 inch and 0.035 inch are respectively met, the size is the most common puncture needle model at present, the clinical use is more convenient and rapid, and the injury is small.

In the ultrasonic lower puncture operation, the principle of developing the puncture needle in an ultrasonic image is that sound waves emitted by an ultrasonic probe are reflected by the surface of the needle core 1 and then echo feedback is formed. If the surface of the stylet 1 is too smooth and the included angle between the ultrasonic probe and the sound wave is too small, most of the sound wave is refracted and dissipated through the surface of the stylet 1, and only few echoes can be fed back to form an image, so that the development of the stylet 1 under the ultrasonic influence is extremely fuzzy, and the puncture operation is not facilitated. In order to enhance the echo of the needle core 1, the needle point 11 is made of a high-echo material, the head of the needle body 12 is frosted or textured, even under the condition that the included angle between the needle core 1 and the ultrasonic sound wave direction is small, the needle point 11 can form strong echo under the ultrasonic condition, the surface of the needle body 12 which is frosted or textured is not smooth, part of ultrasonic waves can be refracted to the direction of the ultrasonic probe, a clearer needle head image can be formed under the influence of the ultrasonic waves, and the position of the needle point 11 can be accurately positioned.

When the head of the needle body 12 is coated with the ultrasonic strong echo material to form the strong echo coating, the needle point 11 and the head of the needle body 12 can form strong echoes under the ultrasonic condition, and the strong echoes are fed back to an ultrasonic receiving system in an ultrasonic probe to form a clear ultrasonic image, so that the position of the needle point 11 is judged when an operator punctures the needle, the operation accuracy is increased, and the puncture risk is reduced.

In a similar way, the surface of the needle sleeve 2 is coated with a strong echo coating formed by an ultrasonic strong echo material, the needle sleeve 2 can form strong echo under ultrasonic, and the strong echo is fed back to an ultrasonic receiving system in an ultrasonic probe to form a clear ultrasonic image, so that an operator can judge the shape of the puncture needle during puncture, and the operation accuracy is improved.

The design of the needle point 11 and the needle body 12 can more accurately position the needle point 11 under ultrasound, can clearly distinguish the needle point 11 from the needle body 12, better avoid surrounding important tissues, nerves and other blood vessels, and reduce puncture complications and iatrogenic injuries.

When the ultrasonic guided blood vessel puncture needle is used, the traditional ultrasonic guided puncture technology is adopted, the blood vessel can be punctured by tracking the whole longitudinal cutting process of the blood vessel, and the point-to-point puncture can also be realized by the transverse cutting point of the ultrasonic probe, so that the conventional ultrasonic guided puncture technology in the field is adopted, and the details are not repeated. The blood vessel puncture needle guided by the ultrasonic wave can easily and conveniently penetrate into the blood vessel through the high-echo needle point 11 and the first strong echo component 13, and can avoid penetrating through the back wall of the blood vessel. The plurality of second strong echo parts 21 arranged on the needle sleeve 2 at intervals can determine the shape of the puncture needle, avoid the damage to adjacent tissues, organs, blood vessels, nerves and the like, and are more accurate.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims (7)

1. An ultrasonic guided blood vessel puncture needle is characterized by comprising a needle core (1) and a needle sleeve (2),

the needle core (1) comprises a needle body (12) and a needle point (11) which is integrally formed by an ultrasonic strong echo material at the front end of the needle body (12), a first strong echo part (13) which generates strong echo under the ultrasonic action is arranged on the outer wall of the needle body (12) close to the needle point (11),

the needle sleeve (2) is provided with a plurality of second strong echo components (21) at intervals along the length direction, the needle tip (11) penetrates out of the needle sleeve (2), the needle sleeve (2) is sleeved outside the needle body (12), the part from the first second strong echo component (21) to the foremost end of the needle sleeve (2) is overlapped with the first strong echo component (13), and the front edge of the first second strong echo component (21) is overlapped with the rear edge of the first strong echo component (13).

2. The ultrasound-guided vascular puncture needle according to claim 1, wherein the first hyperechoic component (13) is a frosted layer, a textured layer, or a first hyperechoic coating.

3. The ultrasound guided vessel puncture needle of claim 2, wherein the first hyperechoic coating is a titanium metal coating.

4. The ultrasound guided vessel puncture needle according to claim 1, wherein the second hyperechoic component (21) is a second hyperechoic coating applied to the inner or outer wall of the needle sheath (2).

5. The ultrasound guided vessel puncture needle according to claim 4, wherein the second hyperechoic coating is a titanium metal coating.

6. The ultrasound guided vascular puncture needle according to claim 1, wherein the needle tip (11) is integrally formed of titanium metal.

7. The ultrasound-guided vascular puncture needle according to claim 1, wherein the first hyperechoic component (13) has a length of 1.8mm to 2.3 mm.

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