CN216257328U - Artery indwelling needle puncture device - Google Patents

Abstract

The utility model discloses an arterial indwelling needle puncture device which is provided with a puncture seat and an injector, wherein the puncture seat and the injector are internally provided with a puncture sleeve, the puncture seat also comprises a push clamp internally provided with a hollow puncture needle, a bottom plate of the push clamp is provided with a sleeve for fixing the lower end part of the hollow puncture needle, a blood return tube communicated with the lower port of the hollow puncture needle is also arranged below the bottom plate, the blood return tube is made of transparent materials, the upper part in the blood return tube is provided with a blood return observation area, the lower part in the blood return tube is provided with a blocking area for installing and blocking, the length of the blood return observation area is more than 10mm, and the upper wall of the blood return observation area of the blood return tube is provided with a convex lens for observing blood return. The beneficial technical effects of the utility model are as follows: the blood return condition in the puncture process can be accurately observed through the magnification effect of the convex lens, and the puncture device has the characteristics of simple structure, convenience in use, accuracy in judgment and improvement of puncture success rate.

Description

Artery indwelling needle puncture device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an arterial indwelling needle puncture device.

Background

Arterial pressure, namely blood pressure, is the most basic circulation monitoring item and the simplest cardiovascular monitoring item, can reflect cardiac output and total resistance of peripheral blood vessels, is related to factors such as blood volume, elasticity of blood vessel walls, blood viscosity and the like, and is one of important indexes reflecting load before and after the heart, myocardial oxygen consumption, work and blood circulation function measurement. The arterial pressure monitoring can be divided into non-invasive arterial pressure monitoring and invasive arterial pressure monitoring, wherein the invasive blood pressure monitoring is a dynamic change process for continuously monitoring arterial blood pressure, is not influenced by artificial pressurization, decompression, cuff width and tightness, is accurate and visual, can take values at any time, and is beneficial to medical staff to find instantaneous changes of arterial pressure of critical patients such as shock and heavy bleeding in time and adjust treatment in time.

Generally, invasive blood pressure monitoring needs to keep an arterial indwelling needle for a patient, and connect a pressure monitoring device and electrocardiogram monitoring to present arterial pressure. The indwelling needle is composed of a hollow puncture needle and a puncture sleeve which are made of stainless steel materials, the hollow puncture needle is inserted into the puncture sleeve to be punctured into a blood vessel during puncture, after the puncture sleeve enters the blood vessel, the hollow puncture needle is drawn out, and only the puncture sleeve is indwelling in the blood vessel to carry out subsequent treatment and monitoring operation on a patient. Unlike venipuncture, arteriopuncture requires arterial pulsation, hemodynamics of critically ill patients are unstable, and if blood pressure is low, a large amount of vasoconstrictors are used to maintain the blood pressure, so that arteriovenous vessels are constricted, and puncture difficulty is increased. In a conventional operation, an operator performs touch artery pulsation evaluation on a predetermined puncture site such as a radial artery or a brachial artery of a patient through an index finger or a middle finger. After the arterial indwelling needle is fully sterilized, the arterial indwelling needle is held by hands to enter the needle for puncture at the strongest point of arterial pulsation, blood returns to the blood return cavity of the indwelling needle, the needle entering angle is reduced, the puncture cannula is parallelly sent into the arterial blood vessel, and the arterial indwelling needle is placed. In clinical practice, an operator generally judges that the puncture is successful by observing the blood return, the blood return cavity actually sees the blood return, and except the successful puncture, the situation that the blood return cavity returns the blood when the hollow puncture needle penetrates through the blood vessel wall can also occur; therefore, an operator cannot correctly judge whether the puncture is successful or not, and cannot intuitively perform the puncture and needle feeding processes like venipuncture, and often the puncture sleeve is too long, so that the puncture sleeve penetrates through the vascular wall when pushed, and the indwelling failure is caused. The clinical practice problem of the artery indwelling needle reflects the defects of the artery indwelling needle in the prior art: firstly, the problems of high puncture difficulty and the like caused by unclear observation and inaccurate judgment of blood return are solved, and the same problems can be encountered in blind puncture and ultrasonic-guided assisted puncture; secondly, the material cost is high and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an arterial indwelling needle puncture device which has the characteristics of simple structure, convenient use, accurate observation of blood return condition in the puncture process through a convex lens and improvement of puncture success rate.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model relates to an artery indwelling needle puncture device, which comprises a puncture seat and an injector, wherein a puncture sleeve is arranged in the puncture seat, a push clamp is arranged in the puncture seat, a hollow puncture needle is arranged in the push clamp, an inner sleeve for fixing the lower end part of the hollow puncture needle is arranged on a bottom plate for pushing the push clamp, a blood return tube communicated with the lower end opening of the hollow puncture needle is also arranged below the bottom plate, the blood return tube is made of transparent materials, a blood return observation area is arranged at the upper part in the blood return tube, a blocking area for installing and blocking is arranged at the lower part in the blood return tube, the length of the blood return observation area is more than 10mm, and a convex lens for observing blood return is arranged on the upper wall of the blood return observation area of the blood return tube.

Foretell an artery is kept somewhere needle piercing depth, convex lens are circular convex lens, the upper wall that returns the blood observation district of blood vessel is equipped with circular opening, be equipped with the concave pit on the circular opening, circular convex lens inlays in the concave pit.

The artery indwelling needle puncture device further comprises an additional sleeve made of transparent materials, wherein the convex lens is a rectangular convex lens and is made on the wall of the additional sleeve, and the additional sleeve is sleeved on the outer surface of a blood return observation area of a blood return vessel.

According to the artery indwelling needle puncture device, the puncture seat is arranged inside the pushing clamp, the hollow puncture needle is inserted into the puncture sleeve, the upper end of the hollow puncture needle extends out of the upper end of the puncture sleeve, the plug is located outside the blocking area, and the upper end of the injector is inserted into the blood return tube and located in the blocking area.

The utility model provides an arterial indwelling needle puncture device which is provided with a puncture seat and an injector, wherein the puncture seat and the injector are internally provided with a puncture sleeve, the puncture seat also comprises a push clamp internally provided with a hollow puncture needle, the bottom plate of the push clamp is provided with an inner sleeve for fixing the lower end part of the hollow puncture needle, the lower surface of the bottom plate is also provided with a blood return tube communicated with the lower port of the hollow puncture needle, the blood return tube is made of transparent materials, the upper part in the blood return tube is provided with a blood return observation area, the lower part in the blood return tube is provided with a blocking area for installing blocking, the length of the blood return observation area is more than 10mm, and the upper wall of the blood return observation area of the blood return tube is provided with a convex lens for observing blood return. The beneficial technical effects of the utility model are as follows: the convex lens for observing the blood return is arranged on the upper wall of the blood return observation area of the blood return tube, the blood return condition in the puncture process can be accurately observed through the amplification effect of the convex lens, the arterial blood gushing out in a pulse state can be easily observed, and the puncture success can be judged. Has the characteristics of simple structure, convenient use, accurate judgment and improvement of the success rate of puncture.

Drawings

FIG. 1 is a schematic view showing the combination of the components of the conventional puncturing device;

FIG. 2 is a schematic view of the assembled structure of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the push clip of FIG. 1;

FIG. 4 is a schematic view of the circular convex lens of the present invention mounted on a blood vessel;

FIG. 5 is a view A-A of FIG. 4;

FIG. 6 is a schematic view of the rectangular convex lens of the present invention mounted on a blood return tube;

fig. 7 is a view B-B in fig. 6.

The parts in the figures are numbered: the puncture device comprises a puncture sleeve 1, a puncture seat 2, a switch 3, a puncture seat sleeve 4, a hollow puncture needle 5, a splint 6, an inner sleeve 7, a bottom plate 8, a blood returning pipe 9, a plug 10, an injector 11, a blood returning observation area L1, a plug area L2, a lower port 12, a circular convex lens 13, a concave pit 14, a circular opening 15, an additional sleeve 16, a support rib 17 and a rectangular convex lens 18.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 to 7, the usage of the arterial indwelling needle puncture device provided by the present invention is as follows: the puncture sleeve 1 and the hollow puncture needle 5 are made of stainless steel, the rest parts are all made of transparent plastic materials and are subjected to injection molding, and the convex lens is a magnifying lens made of plastic materials and subjected to injection molding. First, the puncture base 2 is mounted inside the push clip, the hollow puncture needle 5 is inserted into the puncture sleeve 1, the upper end of the hollow puncture needle 5 protrudes from the upper end of the puncture sleeve 1, and the stopper 10 is mounted in the stopper region L2 in the blood return tube 9. Two, handheld propelling movement presss from both sides and punctures patient's artery, because hollow puncture needle 5 inserts puncture sleeve 1, the two gets into the artery successively, withdraw hollow puncture needle 5, and keep partly in puncture sleeve 1, put low puncture angle back, keep puncture sleeve 1 somewhere in arterial blood vessel, because arterial blood receives the pressure of heart beating and is the pulse state and gushes out, observe the arterial blood that the pulse state gushed out easily through convex lens, can judge that the puncture is successful, the blood that the pulse state gushed out the artery stops, think promptly that the puncture fails. Thirdly, the plug 10 can be pulled out, the upper port of the injector 11 is connected with the puncture seat sleeve 4, and blood returns to the injector 11, so that the blood return condition can be conveniently observed. Fourthly, the puncture is successful, the push clamp is completely taken out, the puncture sleeve 1 is kept in the artery, and the follow-up treatment and monitoring operation can be carried out on the patient.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings herein. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (4)

1. The utility model provides an artery indwelling needle piercing depth, establishes puncture seat (2) and syringe (11) of puncture sleeve (1) in including, its characterized in that: still including establishing the propelling movement of hollow pjncture needle (5) and bottom plate (8) in and pressing from both sides, be equipped with interior sleeve pipe (7) of fixed hollow pjncture needle (5) lower tip on bottom plate (8), still be equipped with blood return pipe (9) with lower port (12) intercommunication of hollow pjncture needle (5) below bottom plate (8), blood return pipe (9) are makeed with transparent material, and upper portion in blood return pipe (9) is equipped with blood return observation area (L1), and lower part in blood return pipe (9) is equipped with the jam area (L2) that the installation blockked up (10), the length of blood return observation area (L1) is greater than 10mm, is equipped with the convex lens of observing the blood return at the upper wall of blood return observation area (L1) of blood return pipe (9).

2. The arterial needle puncture device according to claim 1, characterized in that: the convex lens is circular convex lens (13), the upper wall of the blood return observation area (L1) of the blood return vessel (9) is provided with a circular opening (15), the circular opening (15) is provided with a concave pit (14), and the circular convex lens (13) is embedded in the concave pit (14).

3. The arterial needle puncture device according to claim 1, characterized in that: still include additional sleeve pipe (16) of making with transparent material, convex lens are rectangle convex lens (18) and make on the wall of additional sleeve pipe (16), additional sleeve pipe (16) suit is in the surface of returning blood observation district (L1) of blood vessel (9).

4. An arterial needle puncture device according to claim 2 or 3, characterized in that: the puncture seat (2) is arranged in the pushing clamp, the hollow puncture needle (5) is inserted into the puncture sleeve (1), the upper end part of the hollow puncture needle (5) extends out of the upper end part of the puncture sleeve (1), the plug (10) is positioned outside the blocking area (L2), and the upper end part of the injector (11) is inserted into the blood return tube (9) and is positioned in the blocking area (L2).

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