CN215534872U

CN215534872U - Puncture needle with auxiliary reminding function

Info

Publication number: CN215534872U
Application number: CN202121701772.XU
Authority: CN
Inventors: 汤明昊
Original assignee: First Peoples Hospital of Jiashan
Current assignee: First Peoples Hospital of Jiashan
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-18
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a puncture needle with an auxiliary reminding function, which comprises a needle seat; the needle head is connected with one end of the needle seat and communicated with the needle seat; the light collecting column is fixedly arranged on the needle seat and positioned on the same plane with the needle head, and forms an obtuse included angle with the needle head; the light collecting column comprises a fiber core, one side of the fiber core, facing the needle head, is provided with a smooth light inlet plane, one side of the fiber core, back to the light inlet plane, is provided with a V-shaped reflecting surface, and the outside of the fiber core is provided with a cladding layer which is leaked out of the light inlet plane. A large amount of light is concentrated in a small area through the mode and is emitted out, so that the brightness of the area emitting the light is high, the medical staff can observe the light conveniently, and the eye strength of the medical staff is reduced.

Description

Puncture needle with auxiliary reminding function

Technical Field

The utility model relates to a puncture needle, in particular to a puncture needle with an auxiliary reminding function.

Background

Puncture is a diagnostic technique in which a puncture needle is inserted into a body cavity to extract secretions for testing, gas or contrast agents are injected into the body cavity to perform contrast examination, or medicines are injected into the body cavity. The purpose of puncture is to take blood for examination, blood transfusion, fluid infusion and to put in a catheter for angiography. In the process of puncture, medical personnel often adopt a B-ultrasonic machine to conduct ultrasonic guidance in order to improve the success rate of puncture and reduce the pain of puncture of patients. The B-ultrasonic guided puncture technique is widely used due to the outstanding advantages of overall visual puncture path, accurate positioning of the needle point of the puncture needle and the like. During the puncture operation under the guidance of the B ultrasonic, the section of the B ultrasonic probe reflecting the ultrasonic waves for development is thin, and the puncture needle can be developed only in the section. For promoting the puncture success rate, the patent: CN202021629949.5 and CN202021612994.X disclose a B-ultrasonic machine capable of accurately guiding puncture, wherein a light ray which is in a narrow plane with a developing surface of the B-ultrasonic probe is irradiated on a B-ultrasonic probe, the light ray is irradiated on a puncture needle to display a bright line, when the bright line and the puncture needle are in the same straight line, the needle head of the puncture needle is positioned in an ultrasonic detection area, and medical personnel can accurately master the position relation between the B-ultrasonic probe and the puncture needle through the form, so that the puncture accuracy is improved. However, because the puncture needle is made of the material and the puncture needle is under the light of the shadowless lamp, the display of the light emitted from the B-mode ultrasonic probe on the puncture needle is not obvious enough, the eyes need to be highly concentrated when medical staff analyze the light, and eye fatigue is easy to occur when the medical staff observes the mark for a long time.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned disadvantages, an object of the present invention is to provide a puncture needle with an auxiliary reminding function, which can concentrate light irradiated on the puncture needle on a small area and emit the light, so as to improve the brightness of the light concentrated emission area for the observation and discovery of medical staff.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a puncture needle with auxiliary reminding function comprises

A needle seat;

the needle head is connected with one end of the needle seat and communicated with the needle seat;

the light collecting column is fixedly arranged on the needle seat and positioned on the same plane with the needle head, and forms an obtuse included angle with the needle head;

the light collecting column comprises a fiber core, one side of the fiber core, facing the needle head, is provided with a smooth light inlet plane, one side of the fiber core, back to the light inlet plane, is provided with a V-shaped reflecting surface, and the outside of the fiber core is provided with a cladding layer which is leaked out of the light inlet plane.

Furthermore, the included angle of the V-shaped reflecting surface is 30-150 degrees.

Furthermore, the included angle between the light collecting column and the needle head is 100-150 degrees.

Furthermore, one end of the fiber core, which is far away from the needle seat, is provided with an optical ball.

Furthermore, the sliding sleeve exposed out of the light inlet plane is covered outside the light collecting column.

The working principle is as follows: when the light emitted from the ultrasonic probe irradiates the light-collecting column, the puncture needle, the light-collecting column and the developing surface of the ultrasonic probe are in the same plane. At the moment, the light emitted from the ultrasonic probe irradiates on the light collecting column and enters into the light collecting column, and after the light enters the light collecting column, the light is totally reflected in the light collecting column and ascends until the light is emitted from one end, far away from the needle seat, of the light collecting column in a concentrated mode. A large amount of light is concentrated in a small area through the mode and is emitted out, so that the brightness of the area emitting the light is high, the medical staff can observe the light conveniently, and the eye strength of the medical staff is reduced.

Drawings

FIG. 1 is a schematic view of the present invention without the light ball;

FIG. 2 is a schematic diagram of the structure of the present invention with a light ball;

FIG. 3 is an axial projection view of the reflection path in the light collector bar after light enters the light collector bar from different positions on the light entrance plane;

FIG. 4 is a radial projection view of the reflection path in the light collector bar after light enters the light collector bar from different positions in the light entrance plane.

Reference numerals: 100. the optical fiber laser comprises a needle seat 200, a needle head 300, a light collecting column 310, a fiber core 311, a light inlet plane 312, a V-shaped reflecting surface 320, a cladding 330, a light scattering ball 340 and a sheath.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the puncture needle with auxiliary reminding function comprises a needle base 100, a needle head 200 connected with one end of the needle base and communicated with the needle base, and a light collecting column 300 fixedly arranged on the needle base. In the utility model, in order to ensure that the light-collecting column can play a better reminding role when the developing surfaces of the needle head, the light-collecting column and the B-ultrasonic probe are positioned on the same plane, the light-collecting column and the needle head are arranged in the same plane, and an obtuse included angle is formed between the light-collecting column and the needle head, so that light rays irradiating the light-collecting column and entering the light-collecting column can be reflected in the light-collecting column and then emitted from one end of the light-collecting column, which is far away from the needle base, in a concentrated manner. In addition, before the light rays are emitted out of the light collecting column, in order to keep the intensity of the light rays in the reflecting process as much as possible and ensure that the end face of the light collecting column has enough brightness when the light rays are emitted out of the end face of the light collecting column, the light collecting column has the function of carrying out total reflection on the light rays entering the light collecting column. Specifically, the light collecting column adopts the same principle as an optical fiber (the optical dense medium is irradiated to the optical sparse medium and the total reflection occurs when the incident angle is larger than or equal to the critical angle), and has a material and layer structure, that is, the light collecting column comprises a fiber core 310 (the optical dense medium) positioned inside and a cladding 320 (the optical sparse medium) coated outside the fiber core.

It should be noted that, in order to make the light irradiated on the light collecting column enter the fiber core, a smooth light entering plane 311 for the light to enter the fiber core is disposed on the side of the fiber core facing the needle, and in match with this, a notch for leaking out the light entering plane is disposed on the cladding, and in order to make the light entering the fiber core still remain in the fiber core after multiple reflections in the fiber core and finally exit through the end of the fiber core, so as to ensure that the end face of the light collecting column has enough brightness for medical staff to observe and find after being irradiated by the light, a V-shaped reflecting surface 312 is disposed on the side of the fiber core opposite to the light entering plane. Specifically, as shown in fig. 1 to 2, the V-shaped surface of the V-shaped reflecting surface may be disposed to be recessed into the fiber core or to be protruded from the fiber core.

As a further improvement of the above embodiment, when the included angle of the V-shaped reflecting surface is in the range of 30-150 degrees, the light irradiated to the fiber core can be reflected for more times in the fiber core under the reflection of the V-shaped reflecting surface, and then the retention rate of the light in the fiber core is improved.

As a further improvement of the above embodiment, the included angle between the light collecting column and the needle head ranges from 100 degrees to 150 degrees. When the light-collecting column and the needle head are positioned between the included angles, the angle of the light rays refracted and advancing in the light-collecting column is larger, the transmission distance of the light rays in the light-collecting column after refraction at each time can be increased by increasing the refraction angle, and the purpose that the light rays with less times of refraction are emitted from the end face of the light-collecting column is achieved. The retention rate of light in the light collecting column before the light is emitted from the end face of the light collecting column can also be improved by reducing the required refraction times.

As a further improvement of the above embodiment, in order to make the light beam emitted from the fiber core easier for the medical staff to find, an optical ball 330 is disposed at one end of the fiber core far away from the needle seat. Specifically, the optical sphere and the fiber core are made of the same material, so that light rays emitted from the end face of the fiber core can smoothly enter the optical sphere. After light enters the light ball, the light ball shines, and medical personnel can observe from various angles.

As a further improvement of the above embodiment, the light-collecting column is made of an inorganic material, so that the flexibility is low, and in order to prevent the light-collecting column from being broken and affecting the use, the light-collecting column is covered with a sheath 340 exposed out of the light-entering plane.

Claims

1. A puncture needle with auxiliary reminding function is characterized in that: comprises that

A needle seat;

2. A puncture needle with auxiliary reminding function according to claim 1, characterized in that: the included angle of the V-shaped reflecting surface is 30-150 degrees.

3. A puncture needle with auxiliary reminding function according to claim 1, characterized in that: the included angle between the light collecting column and the needle head is 100-150 degrees.

4. A puncture needle with auxiliary reminding function according to claim 1, characterized in that: one end of the fiber core, which is far away from the needle seat, is provided with a light ball.

5. A puncture needle with auxiliary reminding function according to claim 1, characterized in that: the light collecting column is externally coated with a sliding sleeve exposed out of the light inlet plane.