CN214712705U - Ultrasonic guide nerve block puncture needle - Google Patents

Abstract

The utility model discloses an ultrasonic-guided nerve block puncture needle, which comprises an inner needle seat and an outer needle seat, wherein the outer side of the inner needle seat is sleeved with an outer needle seat, an outer needle cylinder is fixedly embedded on one side end surface of the outer needle seat, a plurality of outer marking rings are arranged at the outer side of the outer needle cylinder in an equidistance manner, a through hole is arranged on the outer wall of the free end of the outer needle cylinder, two ends of the outer needle seat are respectively provided with a handle ring, the outer peripheral wall of the middle part of the outer needle seat is provided with a scale mark, and the outer needle seat is close to the outer wall of one end of the outer needle cylinder and is fixedly embedded with a drainage tube. The marking ring can effectively prompt the penetration depth of the inner and outer needle cylinders.

Description

Ultrasonic guide nerve block puncture needle

Technical Field

The utility model relates to a puncture needle, in particular to an ultrasound-guided nerve block puncture needle, which belongs to the medical field.

Background

The puncture needle is a common medical instrument, can be used for puncturing organs and tissues or injecting medicaments, is mainly applied to minimally invasive surgery, can directly reach pain points by combining the puncture needle with other medical equipment, eliminates the pain of patients, is an essential medical instrument in hospitals, can be used for intervertebral disc puncture, joint puncture, muscle pain point puncture, medicament injection and the like, is a generally good puncture needle, has smooth incision and no burr on the surface, and is good in use, fast in needle insertion and free of pain for patients.

The puncture means of pjncture needle in the past, need the doctor to independently select the point of puncture according to the human body structure, and the doctor needs according to self through the degree of depth and the position of judging the puncture, the sense of touch of this kind of puncture needle is subtle, in case take place the deviation and can cause very big injury to the patient, be difficult to avoid unnecessary medical accident, and the progress of ultrasonic imaging technique, make the puncture of pjncture needle become visual, but when involving secondary tissue puncture, the doctor also can be difficult to avoid taking place the condition of exerting oneself inequality and shake in the operation, this can cause the damage to patient's nervous tissue, the harmfulness is very big, need to improve current nerve blocking puncture needle structure urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an supersound guide nerve blocks pjncture needle to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an ultrasonic-guided nerve block puncture needle comprises an inner needle seat and an outer needle seat, wherein an outer needle seat is sleeved on the outer side of the inner needle seat, an outer needle cylinder is fixedly embedded on one side end face of the outer needle seat, a plurality of outer marking rings are arranged on the outer side of the outer needle cylinder in an equal distance mode, a penetrating hole is formed in the outer free end wall of the outer needle cylinder, a handle ring is arranged at each of two ends of the outer needle seat, a scale mark is arranged on the outer peripheral wall of the middle of the outer needle seat, a drainage tube is fixedly embedded in the outer wall of one end, close to the outer needle cylinder, of the outer needle seat, a limiting ring is rotationally embedded in the end face of the inner needle seat, a rubber sleeve is fixedly bonded on the outer side of the limiting ring, an inner needle cylinder is fixedly embedded in the inner wall of the inner needle cylinder, a plurality of diffusion holes are formed in the outer free end wall of the inner needle seat, a second handle ring is arranged at the other end of the inner needle seat, external threads are formed in the outer wall of the middle of the inner needle seat, the outer wall of one end of the inner needle seat close to the inner needle cylinder is also provided with an inner marking ring, and the outer sides of the outer needle cylinder and the inner needle cylinder are both provided with grooves.

Preferably, the two side end faces of the first handle ring and the second handle ring are densely provided with anti-skid protrusions, and anti-skid grains are further arranged on the outer peripheral wall of the second handle ring.

Preferably, the structure of the outer needle cylinder is matched with that of the inner needle cylinder, and the outer needle cylinder and the inner needle cylinder are both made of steel materials.

Preferably, the inner wall of the outer needle cylinder is provided with an internal thread matched with the external thread, and the outer needle cylinder and the inner needle cylinder are in interference fit.

Preferably, the free end of the outer needle cylinder is in a shuttle-shaped structure, and the end part of the inner needle cylinder is provided with an inclined tangent plane.

Preferably, the outer needle base is made of transparent plastic materials.

Preferably, the outer and inner marker rings may be any one color or a combination of colors of red, green or yellow.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an supersound guide nerve blocks pjncture needle, the secondary puncture in-process, interior needle file keeps threaded connection with outer needle file, can avoid the condition that interior outer needle file breaks away from easily, and the mode of interior needle file screw precession, can effectively relax and pierce the process, make things convenient for the doctor to last contrast supersound development image to can reduce the puncture damage by the at utmost, the degree of depth of piercing of the interior outer cylinder can effectively be indicateed to the mark ring, can assist the doctor to make the puncture judgement, thereby avoid the unexpected condition to take place.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a sectional view of the combined structure of the needle holder of the present invention;

fig. 3 is a sectional schematic view of the combination structure of the middle needle cylinder of the present invention.

In the figure: 1. an inner needle seat; 2. an outer needle base; 3. an outer needle cylinder; 4. an outer marker ring; 5. a groove; 6. an outlet hole is formed; 7. scale lines; 8. a handle ring; 9. an inner needle cylinder; 10. a drainage tube; 11. an inner marker ring; 12. an external thread; 13. a second handle ring; 14. a diffusion hole; 15. a limiting ring; 16. and (4) a rubber sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an ultrasonic-guided nerve block puncture needle comprises an inner needle base 1 and an outer needle base 2, wherein the outer side of the inner needle base 1 is sleeved with the outer needle base 2, an outer needle cylinder 3 is fixedly embedded on one side end face of the outer needle base 2, a plurality of outer marking rings 4 are equidistantly arranged on the outer side of the outer needle cylinder 3, a penetrating hole 6 is formed in the outer wall of the free end of the outer needle cylinder 3, a handle ring 8 is arranged at each of two ends of the outer needle base 2, a scale mark 7 is arranged on the outer peripheral wall of the middle part of the outer needle base 2, a drainage tube 10 is fixedly embedded on the outer wall of one end, close to the outer needle cylinder 3, of the outer needle base 2, a limiting ring 15 is embedded in the end face of the inner needle base 1 in a rotating mode, a rubber sleeve 16 is fixedly bonded on the outer side of the limiting ring 15, an inner needle cylinder 9 is fixedly embedded in the inner wall of the limiting ring 15, a plurality of diffusion holes 14 are formed in the outer wall of the free end of the inner needle cylinder 9, a handle ring 13 of a second needle base is arranged at the other end of the inner needle base 1, external threads 12 are formed in the outer wall of the middle part of the inner needle base 1, the outer wall of one end of the inner needle base 1 close to the inner needle cylinder 9 is also provided with an inner marking ring 11, and the outer side of the outer needle cylinder 3 and the outer side of the inner needle cylinder 9 are both provided with grooves 5.

Wherein, the both sides terminal surface of a handle ring 8 and No. two handle rings 13 all gathers on has the non-skid protrusions, still is provided with anti-skidding line on wherein the periphery wall of No. two handle rings 13, can avoid the condition that the doctor perspires the smooth hand, has ensured operation safety.

Wherein, the structure looks adaptation of outer syringe 3 and interior syringe 9, and outer syringe 3 and interior syringe 9 are the steel material and make, and the recess 5 on outer syringe 3 and the interior syringe 9 sets up relatively, and this makes interior syringe 9 can only follow the straight line and pierce to reducible injury to nervous tissue.

Wherein, offer the internal thread with external screw thread 12 looks adaptations on the inner wall of outer syringe 3, interior needle holder 1 can spiral antedisplacement, can promote interior syringe 9 and pass out hole 6 and enter into nervous tissue in, and clearance weeping between outer syringe 3 and the interior syringe 9 can be avoided to outer syringe 3 and interior syringe 9 interference fit.

Wherein, the free end of outer syringe 3 is fusiform structure, and during the puncture, epidermis tissue and adipose tissue can not enter into outer syringe 3, and the tip of interior syringe 9 is provided with the slope tangent plane, and comparatively fragile interior syringe 9 then can pierce in the soft nervous tissue along outer syringe 3.

Wherein, the outer needle seat 2 is made of transparent plastic materials, so that the doctor can see the inner marking ring 11, and the depth of the secondary puncture can be conveniently mastered.

Wherein, outer mark ring 4 and interior mark ring 11 can be any one colour or the combination of several kinds of colours in red, green or yellow, chooses for use striking colour, can make things convenient for the doctor to distinguish to can accurately judge the depth of puncturing.

Specifically, when the utility model is used, compared with the ultrasonic development image, the inner needle cylinder 9 is inserted into the outer needle cylinder 3 in the hole pair, until the inner needle base 1 is connected with the outer needle base 2 by screw thread, the free end of the outer needle cylinder 3 is pierced into the position to be retarded, so that the end part of the outer needle cylinder 3 can pierce the epidermis and the fat layer, the arrangement of the outer mark ring 4 can effectively prompt the piercing depth, thereby facilitating the reference of a doctor, after the end part of the outer needle cylinder 3 reaches the nerve tissue layer, the outer needle cylinder 3 can be fixed on the skin of a patient by using a medical adhesive tape, the shaking of the outer needle cylinder 3 is avoided, the second handle ring 13 is slowly rotated, so that the inner needle base 1 can spirally move forward, the inner needle cylinder 9 can be pushed to pass through the piercing hole 6 to enter the nerve tissue, the piercing process can be effectively slowed down, thereby facilitating the doctor to continuously contrast the ultrasonic development image, thereby reducing the piercing damage to the maximum degree, the arrangement of the scale mark line 7 and the inner mark ring 11, the puncture length can be prompted, so that the judgment of a doctor can be assisted.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an supersound guide nerve block pjncture needle, its characterized in that includes interior needle file (1) and outer needle file (2), the outside cover of interior needle file (1) is equipped with outer needle file (2), fixed outer cylinder (3) of inlaying on one side terminal surface of outer needle file (2), the outside equidistance of outer cylinder (3) is provided with a plurality of outer mark rings (4), the free end outer wall of outer cylinder (3) is provided with wears hole (6), the both ends of outer needle file (2) all are provided with one handle ring (8), be provided with scale mark (7) on the middle part periphery wall of outer needle file (2), the outer needle file (2) is close the one end outer cylinder (3) outer wall still fixed the inlaying and is equipped with drainage tube (10), the terminal surface internal rotation of interior needle file (1) inlays and is equipped with spacing ring (15), the outside of spacing ring (15) is fixed to be bonded has gum cover (16), the inner wall of spacing ring (15) is fixed to be inlayed and is equipped with interior cylinder (9), a plurality of diffusion holes (14) have been seted up to the free end outer wall of interior cylinder (9), the other end of interior needle file (1) is provided with No. two handle ring (13), external screw thread (12) have been seted up to the middle part outer wall of interior needle file (1), the one end outer wall that interior needle file (1) is close interior cylinder (9) still is provided with interior mark ring (11), the outside of outer cylinder (3) and interior cylinder (9) all is provided with recess (5).

2. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the both sides terminal surface of a handle ring (8) and No. two handle ring (13) is all densely covered with the non-slip raised, wherein still be provided with anti-skidding line on the periphery wall of No. two handle ring (13).

3. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the structure of the outer needle cylinder (3) is matched with that of the inner needle cylinder (9), and the outer needle cylinder (3) and the inner needle cylinder (9) are both made of steel materials.

4. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the inner wall of the outer needle cylinder (3) is provided with an internal thread matched with the external thread (12), and the outer needle cylinder (3) is in interference fit with the inner needle cylinder (9).

5. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the free end of the outer needle cylinder (3) is in a shuttle-shaped structure, and the end part of the inner needle cylinder (9) is provided with an inclined tangent plane.

6. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the outer needle base (2) is made of transparent plastic materials.

7. An ultrasound guided nerve block puncture needle according to claim 1, characterized in that: the outer marking ring (4) and the inner marking ring (11) can be any one color or a combination of colors of red, green or yellow.

Images