CN211155831U

CN211155831U - Artery indwelling needle with bottom end capable of preventing bending

Info

Publication number: CN211155831U
Application number: CN201921538325.XU
Authority: CN
Inventors: 卜梁姝
Original assignee: Third Hospital of Hebei Medical University
Current assignee: Third Hospital of Hebei Medical University
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-08-04
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a medical equipment technical field specifically is a needle is kept somewhere to artery that bottom anti-bending, including the steel needle, the steel needle end is equipped with the needle wing, the steel needle outside is equipped with the plastic sleeve pipe, the length of steel needle is slightly longer than the plastic sleeve pipe, the plastic sleeve pipe end is equipped with the needle handle, needle handle upper portion is equipped with moves back the needle groove, the needle handle bottom surface is equipped with interface branch road module, be equipped with the passageway on the interface branch road module and switch the button, interface branch road module rear end is equipped with the interface. The bottom of the channel switching button is provided with a switching channel, and the bottom end of the switching channel is provided with a channel block. The interface is internally provided with an interface branch. The plastic sleeve is internally provided with a supporting guide wire which is arranged on the inner wall of the plastic sleeve in a surrounding way, and a groove with the same width as that of the steel needle is reserved at the steel needle at the lower part of the supporting guide wire. The utility model discloses can be used to critical patients' dynamic blood pressure monitoring. The bending and folding probability of the indwelling casing is reduced, the influence of the bent casing on pressure monitoring is reduced, and more accurate data is provided.

Description

Artery indwelling needle with bottom end capable of preventing bending

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an artery indwelling needle with a bottom end capable of preventing bending.

Background

The artery indwelling needle is a medical means for assisting surgical treatment, has a plurality of purposes, can accelerate the efficiency of rescue, can quickly take blood if the artery indwelling needle is available, can relieve the secondary pain of patients, and is very practical. However, in the blood pressure measuring method for invasive arterial blood pressure monitoring, the needle head of the indwelling needle is mostly positioned in the center of the needle handle, and the arterial catheter is directly placed into the artery, so that a certain height distance exists between the arterial catheter and the skin of a patient when the arterial catheter is fixed, the indwelling needle is easy to bend and fold, and the accuracy of monitoring data is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a needle is kept somewhere to artery that bottom bending prevention is crooked to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a needle is kept somewhere to artery of bottom antiflex, includes the steel needle, the steel needle end is equipped with the needle wing, the steel needle outside is equipped with the plastic cannula, the length of steel needle is slightly longer than the plastic cannula, the plastic cannula end is equipped with the needle handle, needle handle upper portion is equipped with moves back the needle groove, needle handle bottom surface is equipped with interface branch road module, be equipped with the passageway on the interface branch road module and switch the button, interface branch road module rear end is equipped with the interface.

Further: the bottom of the channel switching button is provided with a switching channel, and the bottom end of the switching channel is provided with a channel block.

Further: and an interface branch is arranged in the interface.

Further: the plastic sleeve is internally provided with a supporting guide wire which is arranged on the inner wall of the plastic sleeve in a surrounding mode, and a groove with the same width as that of a steel needle is reserved at the steel needle at the lower portion of the supporting guide wire.

Further: the needle wing is triangular.

Compared with the prior art, the beneficial effects of the utility model are that: the steel needle head is located the bottom of plastic casing, and the puncture in-process steel needle combines with the plastics sleeve pipe of staying precision all the time at the puncture in-process, increases the plastics sleeve pipe and gets the puncture ability, does not have the angle laminating with the skin after the puncture, then, gets the drag hook through the afterbody and can easily isolate the steel needle part, and the plastics sleeve pipe can remain and be used for data acquisition in the blood vessel. The needle wing is designed to be beneficial to exerting force during puncture and holding during separation.

The artery indwelling needle under the design can be used for monitoring the dynamic blood pressure of critically ill patients. The bending and folding probability of the indwelling casing is reduced, the influence of the bent casing on pressure monitoring is reduced, and more accurate data is provided.

Drawings

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

FIG. 2 is a schematic view of the structure of the steel needle of the present invention;

FIG. 3 is a schematic structural view of the needle handle of the present invention;

fig. 4 is a sectional view of the needle handle of the present invention.

In the figure: 1. a steel needle; 11. a needle wing; 12. a support guidewire; 2. a needle handle; 21. a plastic sleeve; 22. an interface branch module; 23. a path switching button; 231. switching a path; 232. a road block; 24. an interface; 241. an interface branch; 25. a needle withdrawing groove.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but 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" 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a needle is kept somewhere to artery of bottom antiflex, includes steel needle 1, and 1 end of steel needle is equipped with needle wing 111, and 1 outside of steel needle is equipped with plastic sleeve 211, and the length of steel needle 1 is slightly longer than plastic sleeve 211, and the plastic sleeve 211 end is equipped with needle handle 2, and 2 upper portions of needle handle are equipped with and move back needle groove 25, and 2 bottom surfaces of needle handle are equipped with interface branch road module 22, are equipped with route switching button 23 on the interface branch road module 22, and interface branch road module 22 rear end is equipped with interface 24.

Specifically, the needle wing 11 is used for exerting the stress when the needle, and the plastic sleeve 21 is promptly to keep somewhere the sleeve pipe, because steel needle 1 sets up in plastic sleeve 21 bottom, can not produce unsettled after exerting the needle, can hug closely skin, reduces the probability that the atress is buckled, improves the accuracy of monitoring data.

It should be noted that after the needle is applied, the steel needle 1 needs to be withdrawn, and the plastic sleeve 21 is left inside, because the steel needle 1 is very small, the needle handle 2 needs to be held to separate the steel needle 1 from the needle withdrawing groove 25 while the needle wing 11 at the end of the steel needle 1 is held.

The bottom of the channel switching button 23 is provided with a switching channel 231, and the bottom end of the switching channel is provided with a channel stop block 232.

The interface 24 is provided with an interface branch 241 inside.

Specifically, in order to prevent arterial blood from overflowing from the needle withdrawal groove 25 during the separation of the steel needle 1 from the needle withdrawal groove 25, the switching path 231 and the port branch 241 are in a staggered state before the path switching button 23 is pressed, so that the port 24 is closed, and when the steel needle 1 is withdrawn, the path switching button 23 is pressed, the switching path 231 and the port branch 241 are connected, and the path blocking block 232 is pressed into the inner needle withdrawal groove 25 to prevent arterial blood from flowing out.

The plastic sleeve 211 is internally provided with a supporting guide wire 12 which surrounds the inner wall of the plastic sleeve 211, and a groove with the same width as that of the steel needle 1 is reserved at the steel needle 1 at the lower part of the supporting guide wire 12.

The needle wing 11 is triangular, and the needle wing 11 is triangular. The needle wing 11 is stressed greatly in the puncture process, meanwhile, in order to reduce the structure and the weight of the needle, the needle is not easy to be designed to be too large and complex, and in the existing size, the triangular stress and the stability are the best.

The supporting guide wire 21 is arranged in the plastic sleeve 21 and surrounds the inner wall of the plastic sleeve 21, the supporting guide wire is arranged on the inner wall of the plastic sleeve 21 in a surrounding mode, the stress capacity of the plastic sleeve 21 is improved, the flow rate of blood in the plastic sleeve 21 passing through a guide pipe is reduced, blowout is avoided, and a groove with the same width as that of the steel needle 1 is reserved at the steel needle 1 at the lower portion of the supporting guide wire 21. The lower part of the surrounding supporting guide wire 21 avoids the process of embedding the steel needle 1 into the plastic sleeve 21.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a needle is kept somewhere to artery of crooked is prevented to bottom, includes steel needle (1), its characterized in that: the utility model discloses a needle, including steel needle (1), plastic sleeve pipe (21) are equipped with in the steel needle (1) end, the length of steel needle (1) is slightly longer than plastic sleeve pipe (21), plastic sleeve pipe (21) end is equipped with needle handle (2), needle handle (2) upper portion is equipped with moves back needle groove (25), needle handle (2) bottom surface is equipped with interface branch road module (22), be equipped with route switching button (23) on interface branch road module (22), interface branch road module (22) rear end is equipped with interface (24).

2. The bottom-end anti-buckling arterial indwelling needle of claim 1, wherein: the bottom of the channel switching button (23) is provided with a switching channel (231), and the bottom end of the switching channel is provided with a channel stop block (232).

3. The bottom-end anti-buckling arterial indwelling needle of claim 1, wherein: an interface branch (241) is arranged in the interface (24).

4. The bottom-end anti-buckling arterial indwelling needle of claim 1, wherein: the plastic sleeve (21) is internally provided with a support guide wire (12) which surrounds the inner wall of the plastic sleeve (21), and a groove with the same width as that of the steel needle (1) is reserved at the steel needle (1) at the lower part of the support guide wire (12).

5. The bottom-end anti-buckling arterial indwelling needle of claim 1, wherein: the needle wing (11) is triangular.