CN112890928A

CN112890928A - Ultrasonic guided puncture needle device

Info

Publication number: CN112890928A
Application number: CN202110208334.8A
Authority: CN
Inventors: 赵忠民; 赵文欣; 申飞燕
Original assignee: Taizhou Peoples Hospital
Current assignee: Taizhou Peoples Hospital
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-04

Abstract

The invention relates to an ultrasonic guided puncture needle device, comprising an outer puncture needle and an inner puncture needle, the outer puncture needle is a hollow structure, the inner puncture needle is a solid structure, and the outer puncture needle is sleeved on the inner puncture needle and can move relatively freely; A plurality of crescent-shaped outer needle grooves protruding toward the needle tip are arranged on the surface wall of the outer puncture needle near the needle tip and corresponding to the bevel side of the needle tip, and the outer needle grooves are arranged obliquely in a manner not perpendicular to the axis of the outer puncture needle; A number of crescent-shaped inner needle grooves protruding toward the needle tip are provided on the surface wall of the needle near the needle tip corresponding to the bevel side of the needle tip. When it is flush with the bevel of the needle tip of the puncture inner needle, the inclination directions of the outer needle groove and the inner needle groove are opposite. The invention has ingenious structure and reasonable design, can greatly increase the reflection cross section of the entire puncture needle device, and is more conducive to ultrasonic reflection, so that the puncture needle device can be displayed more clearly under ultrasound.

Description

Ultrasonic guided puncture needle device

Technical Field

The invention relates to a puncture needle, in particular to an ultrasonic guide puncture needle device, and belongs to the technical field of medical instruments.

Background

The ultrasonic guided puncture technology is widely applied in clinic, and is more commonly applied in pain departments particularly. Because the puncture needle is often close to dangerous structures such as blood vessels, visceral organs, spinal cords and the like, and simultaneously needs to accurately reach target points such as nerves and the like, good display of the puncture needle under ultrasound becomes important. The prior puncture needle adopts a reflecting surface manufactured on the surface of the needle to enhance the display, but the practical application effect is poor, the strength of the puncture needle is influenced when the reflecting surface is large, the display is not greatly improved when the reflecting surface is small, and the like.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an ultrasonic guide puncture needle device which is ingenious in structure and reasonable in design, can greatly increase the reflection section of the whole puncture needle device and is more beneficial to ultrasonic reflection, so that the puncture needle device can display more clearly under ultrasound.

According to the technical scheme provided by the invention: an ultrasonic guide puncture needle device is characterized in that: the puncture needle comprises a puncture outer needle and a puncture inner needle, wherein the puncture outer needle is of a hollow structure, the puncture inner needle is of a solid structure, and the puncture outer needle is sleeved on the puncture inner needle and can move freely relative to the puncture inner needle; the surface wall of the puncture outer needle close to the needle point and corresponding to the inclined surface side of the needle point is provided with a plurality of crescent outer needle grooves protruding towards the needle point, and the outer needle grooves are obliquely arranged in a mode of not being perpendicular to the axis of the puncture outer needle; the surface wall of the puncture inner needle close to the needle point and corresponding to the inclined surface side of the needle point is provided with a plurality of crescent inner needle grooves protruding towards the needle point, and the inner needle grooves are obliquely arranged in a mode of not being perpendicular to the axis of the puncture inner needle; when needle point slopes of the outer puncture needle and the inner puncture needle are flush, the outer needle groove and the inner needle groove are opposite in inclination direction.

As a further improvement of the invention, the surface wall of the needle point near the needle point and on the back needle point inclined surface side is also provided with a plurality of crescent outer needle grooves protruding towards the needle point, and the outer needle grooves corresponding to the needle point inclined surface side and the outer needle grooves on the back needle point inclined surface side have the same inclined direction but are distributed in a staggered way in the length direction of the outer needle.

As a further improvement of the invention, the included angle between the connecting line of the two ends of the outer needle groove and the axis of the outer puncture needle is 60 degrees, and the included angle between the connecting line of the two ends of the inner needle groove and the axis of the inner puncture needle is 60 degrees.

As a further improvement of the invention, the deepest depth of the outer needle groove is 1/4 of the wall thickness of the puncture outer needle.

As a further improvement of the invention, the puncture outer needle has the length of 100mm, the outer diameter of 0.8mm, the inner diameter of 0.6mm, the wall thickness of 0.2mm, the deepest depth of the outer needle groove of 0.05mm, the width of the widest part of 0.2mm and the height of two tips of 0.35mm, the outer needle groove is arranged from the 3mm position at the rear end of the needle tip inclined plane, the overall length is 10mm, and the distance between the adjacent outer needle grooves is 0.3 mm; the length of the inner needle for puncture is 150mm, the outer diameter is 0.5mm, the depth of the deepest part of the inner needle groove is 0.1mm, the width of the widest part is 0.5mm, the height of the two tips is 0.25mm, the inner needle groove is arranged from the 3mm position at the rear end of the needle tip inclined plane, the overall length of the inner needle groove is 10mm, and the distance between the adjacent inner needle grooves is 0.3 mm.

As a further improvement of the invention, the puncture outer needle has the length of 150mm, the outer diameter of 1.2mm, the inner diameter of 0.8mm, the wall thickness of 0.4mm, the deepest depth of the outer needle groove of 0.1mm, the width of the widest part of 1.0mm, the height of two tips of 0.55mm, the outer needle groove is arranged from the 3mm position at the rear end of the needle tip inclined plane, the integral arrangement length of 10mm, and the distance between the adjacent outer needle grooves of 0.3 mm; the length of the inner needle for puncture is 200mm, the outer diameter is 0.7mm, the depth of the deepest part of the inner needle groove is 0.2mm, the width of the widest part is 0.8mm, the height of two tips is 0.35mm, the inner needle groove is arranged from the 3mm position at the rear end of the needle tip inclined plane, the overall length of the inner needle groove is 10mm, and the distance between the adjacent inner needle grooves is 0.3 mm.

Compared with the prior art, the invention has the following advantages:

1) the puncture needle device is ingenious in structure and reasonable in design, the outer needle groove is formed in the puncture outer needle, the inner needle groove is formed in the puncture inner needle, and when the puncture needle device conducts puncture under the ultrasonic guidance, if the display is poor, the inner needle groove and the outer needle groove can be adjusted in a dynamic cross mode by rotating the puncture inner needle, the reflection section of the whole puncture needle device can be greatly increased, ultrasonic reflection is facilitated, and the display of the puncture needle device under the ultrasonic is clearer.

2) The outer needle groove and the inner needle groove are both convex towards the needle point, so that the puncture resistance can be reduced, and the operation is convenient; because the reflection is increased by the interaction of the inside and the outside of the outer puncture needle and the inner puncture needle, the defect that the strength of the needle is poor because a deep groove has to be formed on the existing puncture needle to increase the reflection surface of the needle is overcome.

Drawings

Fig. 1 is a schematic front structural view of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a back structure according to an embodiment of the invention.

Description of reference numerals: 1-puncture outer needle, 1 a-outer needle groove, 2-puncture inner needle and 2 a-inner needle groove.

Detailed Description

The invention is further illustrated by the following specific figures and examples.

As shown in fig. 1, the embodiment discloses an ultrasonic guided puncture needle device, which comprises a puncture outer needle 1 and a puncture inner needle 2, wherein the puncture outer needle 1 is of a hollow structure, the puncture inner needle 2 is of a solid structure, and the puncture outer needle 1 is sleeved on the puncture inner needle 2 and can move freely relative to the puncture inner needle; the surface wall of the puncture outer needle 1 close to the needle point and corresponding to the needle point inclined surface side is provided with a plurality of crescent outer needle grooves 1a protruding towards the needle point, and the outer needle grooves 1a are obliquely arranged in a mode of not being vertical to the axis of the puncture outer needle 1; the surface wall of the puncture inner needle 2 close to the needle point and corresponding to the needle point inclined surface side is provided with a plurality of crescent inner needle grooves 2a protruding towards the needle point, and the inner needle grooves 2a are obliquely arranged in a mode of not being vertical to the axis of the puncture inner needle 2; when the needle point slopes of the outer puncture needle 1 and the inner puncture needle 2 are flush, the outer needle groove 1a and the inner needle groove 2a are inclined in opposite directions.

During clinical use, this pjncture needle device punctures under the supersound guide, when showing not good under the supersound, through rotatory puncture interior needle 2, because the incline direction of outer needle recess 1a and interior needle recess 2a is opposite, rotatory puncture interior needle 2 can make interior needle recess 2a and outer needle recess 1a developments cross adjustment, can the whole pjncture needle device's of greatly increased reflection cross section, more do benefit to the ultrasonic reflection to make the pjncture needle device show under the supersound more clearly. Because the outer needle groove 1a and the inner needle groove 2a are both convex towards the needle point, the puncture resistance can be reduced, and the operation is convenient. Because the reflection is alternately increased inside and outside the puncture outer needle 1 and the puncture inner needle 2, the defect that the strength of the needle is poor because a deep groove has to be formed on the existing puncture needle to increase the reflection surface of the needle is overcome.

In the present embodiment, as shown in fig. 2, the outer needle groove 1a protruding toward the needle point is also provided with a plurality of crescent-shaped outer needle grooves 1a on the front wall of the needle point-facing oblique surface of the outer puncturing needle 1 near the needle point, and the outer needle grooves 1a corresponding to the needle point-facing oblique surface are inclined in the same direction as the outer needle grooves 1a facing away from the needle point-facing oblique surface but are distributed in a staggered manner in the longitudinal direction of the outer puncturing needle 1. So set up, because 1 table wall two sides of outer needle of puncture all are equipped with outer needle recess 1a, when needle 2 strengthens the demonstration in the rotatory puncture, only need the interior needle 2 of small-angle rotation puncture, have outer needle recess 1a promptly and interior needle recess 2a constitution developments alternately, it is more convenient to operate.

As shown in fig. 1, in this embodiment, an angle between a connecting line of two ends of the outer needle groove 1a and an axis of the outer puncturing needle 1 is 60 degrees, and an angle between a connecting line of two ends of the inner needle groove 2a and an axis of the inner puncturing needle 2 is 60 degrees. So set up, can make the dynamic cross adjustment between interior needle recess 2a and the outer needle recess 1a effectual.

In the present embodiment, as shown in fig. 1, the deepest depth of the outer needle groove 1a is 1/4 of the wall thickness of the piercing outer needle 1. So set up, can guarantee that puncture outer needle 1 has sufficient structural strength.

In the present invention, the outer needle groove 1a of the outer piercing needle 1 and the inner needle groove 2a of the inner piercing needle 2 are formed according to the specifications of the outer piercing needle 1 and the inner piercing needle 2. Two general specifications are given here:

1. the puncture outer needle 1 is 100mm in length, 0.8mm in outer diameter, 0.6mm in inner diameter and 0.2mm in wall thickness, the deepest part of an outer needle groove 1a is 0.05mm in depth, the width of the widest part is 0.2mm, the heights of two tips are 0.35mm (the heights of the two tips are the linear distance between the two tips of the outer needle groove 1a), the outer needle groove 1a is arranged from the 3mm position at the rear end of the needle tip inclined plane, the overall arrangement length is 10mm, and the distance between the adjacent outer needle grooves 1a is 0.3 mm; the length of the puncture inner needle 2 is 150mm, the outer diameter is 0.5mm, the deepest depth of the inner needle groove 2a is 0.1mm, the width of the widest part is 0.5mm, the height of the two tips is 0.25mm, the inner needle groove 2a starts to be arranged from the 3mm position of the rear end of the needle tip inclined plane, the whole length is 10mm, and the distance between the adjacent inner needle grooves 2a is 0.3 mm.

2. The puncture outer needle 1 is 150mm in length, 1.2mm in outer diameter, 0.8mm in inner diameter and 0.4mm in wall thickness, the deepest part of an outer needle groove 1a is 0.1mm in depth, the width of the widest part is 1.0mm, the heights of two tips are 0.55mm, the outer needle groove 1a is arranged from the 3mm position at the rear end of a needle tip inclined plane, the overall arrangement length is 10mm, and the distance between adjacent outer needle grooves 1a is 0.3 mm; the length of the puncture inner needle 2 is 200mm, the outer diameter is 0.7mm, the deepest depth of the inner needle groove 2a is 0.2mm, the width of the widest part is 0.8mm, the height of the two tips is 0.35mm, the inner needle groove 2a starts to be arranged from the 3mm position of the rear end of the needle tip inclined plane, the whole length is 10mm, and the distance between the adjacent inner needle grooves 2a is 0.3 mm.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the invention, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims

1. An ultrasound-guided puncture needle device, characterized in that it comprises an outer puncture needle (1) and an inner puncture needle (2), the outer puncture needle (1) is a hollow structure, and the inner puncture needle (2) is a solid structure, and the puncture needle (2) is a solid structure. The outer needle (1) is sleeved on the inner puncture needle (2) and can move relatively freely; a plurality of crescent-shaped convexes are provided on the surface wall of the outer puncture needle (1) near the needle tip and corresponding to the inclined surface side of the needle tip The outer needle groove (1a) of the needle tip, the outer needle groove (1a) is arranged obliquely in a manner not perpendicular to the axis of the outer puncture needle (1); the inner puncture needle (2) is close to the corresponding needle tip slope at the needle tip A plurality of crescent-shaped inner needle grooves (2a) protruding toward the needle tip are provided on the surface wall of the side, and the inner needle grooves (2a) are arranged obliquely in a manner not perpendicular to the axis of the puncturing inner needle (2); when When the needle tip slopes of the outer puncture needle (1) and the inner needle (2) are flush, the inclination directions of the outer needle groove (1a) and the inner needle groove (2a) are opposite.

2 . The ultrasonic-guided puncture needle device according to claim 1 , wherein the outer puncture needle ( 1 ) is also provided with a number of crescent-shaped convexes on the surface wall of the outer puncture needle (1) that is close to the needle tip and faces away from the inclined surface of the needle tip. 3 . The outer needle groove (1a) of the needle tip, and the outer needle groove (1a) corresponding to the bevel side of the needle tip and the outer needle groove (1a) facing away from the bevel side of the needle tip are inclined in the same direction but within the length of the puncture outer needle (1) Staggered distribution in direction.

3. The ultrasonic-guided puncture needle device according to claim 1, characterized in that: the included angle between the line connecting the two ends of the outer needle groove (1a) and the axis of the outer puncture needle (1) is 60 degrees, so The included angle between the line connecting the two ends of the inner needle groove (2a) and the axis of the puncturing inner needle (2) is 60 degrees.

4. The ultrasonic-guided puncture needle device according to claim 1, wherein the deepest depth of the outer needle groove (1a) is 1/4 of the wall thickness of the puncture outer needle (1).

5. The ultrasonic-guided puncture needle device according to claim 1, wherein the outer puncture needle (1) has a length of 100 mm, an outer diameter of 0.8 mm, an inner diameter of 0.6 mm, a wall thickness of 0.2 mm, and a concave outer needle. The deepest depth of the groove (1a) is 0.05mm, the width at the widest part is 0.2mm, and the height of the two tips is 0.35mm. The outer needle groove (1a) is set from 3mm at the rear end of the bevel of the needle tip, and the overall setting length is 10mm. The spacing between adjacent outer needle grooves (1a) is 0.3mm;

The length of the puncture inner needle (2) is 150mm, the outer diameter is 0.5mm, the deepest depth of the inner needle groove (2a) is 0.1mm, the width at the widest part is 0.5mm, the height of the two tips is 0.25mm, and the inner needle concave The grooves (2a) are set from 3mm at the rear end of the inclined surface of the needle tip, and the overall set length is 10mm, and the distance between adjacent inner needle grooves (2a) is 0.3mm.

6. The ultrasonic-guided puncture needle device according to claim 1, wherein the outer puncture needle (1) has a length of 150 mm, an outer diameter of 1.2 mm, an inner diameter of 0.8 mm, a wall thickness of 0.4 mm, and the outer needle is concave. The depth of the groove (1a) is 0.1mm at the deepest part, the width at the widest part is 1.0mm, and the height of the two tips is 0.55mm. The distance between the adjacent outer needle grooves (1a) is 0.3 mm; the length of the puncture inner needle (2) is 200 mm, the outer diameter is 0.7 mm, and the inner needle groove (2a) has a deepest depth of 0.2 mm and a widest width of 0.7 mm. The width is 0.8mm, the height of the two tips is 0.35mm, the inner needle groove (2a) is set from 3mm at the rear end of the bevel of the needle tip, the overall setting length is 10mm, and the distance between adjacent inner needle grooves (2a) is 0.3mm.