CN204364507U - Extract hydrarthrosis syringe - Google Patents

Abstract

The utility model relates to a syringe for extracting joint effusion, which comprises a syringe, a pull rod, a piston, a piston handle, a nipple, and a needle point. The two ends of the pull rod are respectively connected with the piston and the piston handle. The nipple is fixed on the end of the syringe, and the needle tip is fixed on the nipple. The pull rod is composed of three rectangular planes, one long side of the three rectangular planes is connected together, and several long sides are arranged on the other long side of the three rectangular planes. Equidistant depressions, the cross-section of the pull rod is Y-shaped, and a plurality of equidistant protrusions corresponding to the depressions are provided on the tail end of the inner wall of the syringe. The utility model is convenient for orthopedic doctors to extract joint effusion, and is convenient for the diagnosis and treatment of diseases such as effusion in the joint cavity.

Description

Syringe for extracting joint effusion

technical field

The utility model relates to a medical device. Specifically relates to a syringe for extracting joint effusion.

Background technique

At present, orthopedic doctors in most hospitals use ordinary syringes to aspirate joint effusion. Due to the pressure difference, all doctors are laborious in operation and easy to aspirate. However, ordinary syringes cannot overcome the pressure of the atmosphere, making the operation of the syringe several times more difficult in the presence of negative pressure. The cost of arthroscopy is high, and the cost of treatment is high, so it is not suitable for popularization at present.

Utility model content

The purpose of the utility model is to provide a syringe for extracting joint effusion, which is convenient for orthopedic doctors to extract joint effusion, and is convenient for the diagnosis and treatment of diseases such as effusion in the joint cavity.

In order to achieve the above object, the utility model has the following technical solutions:

A syringe for extracting joint effusion according to the utility model comprises a syringe, a pull rod, a piston, a piston handle, a nipple, and a needle point. The nipple is fixed on the end of the syringe, and the needle tip is fixed on the nipple. The pull rod is composed of three rectangular planes, one long side of the three rectangular planes is connected together, and several long sides are arranged on the other long side of the three rectangular planes. Equidistant depressions, the cross-section of the pull rod is Y-shaped, and a plurality of equidistant protrusions corresponding to the depressions are provided on the rear end of the inner wall of the syringe.

Wherein, the width of the protrusion is 3mm, and the length is 2mm.

Wherein, the depressions are arranged staggered on two adjacent rectangular planes.

Owing to having taken above technical scheme, the utility model has the advantage that:

1 Effectively prevent the negative pressure of the extracted joint cavity from causing the internal fluid to be absorbed again, reducing repetitive work. 2. It not only has a scale consistent with the syringe, which is helpful for doctors to control the dose of liquid aspiration and injection, and is easy to read, but also simple, economical, easy to operate, more suitable for universality, and easy to promote. 3 It can be used in all orthopedic hospitals, consulting rooms, and medical institutions engaged in orthopedic treatment. 4 Suitable for large, medium and small cities, more suitable for community and township hospitals with poor conditions, and can also be used for other operations that require negative pressure suction and injection.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the structural representation of the syringe of the utility model;

Fig. 3 is an enlarged schematic diagram of the pull rod of the present invention.

In the figure: 1. Nipple; 2. Syringe; 3. Piston; 4. Pull rod; 5. Piston handle; 6. Protrusion; 7. Depression; 8. Needle tip.

Detailed ways

The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Figures 1-3, a syringe for extracting joint effusion of the present invention is composed of a syringe, a pull rod, a piston, a piston handle, a nipple, and a needle point. The two ends of the pull rod are respectively connected with the piston and the piston handle. The piston handle is located in the syringe, the nipple is fixed at the end of the syringe, and the needle tip is fixed on the nipple. The pull rod is composed of three rectangular planes, one long side of the three rectangular planes is connected together, and the other of the three rectangular planes is Several equidistant depressions are provided on the long side, the cross section of the pull rod is Y-shaped, and several equidistant protrusions corresponding to the depressions are provided on the rear end of the inner wall of the syringe.

The protrusion has a width of 3mm and a length of 2mm.

The depressions are arranged staggered on two adjacent rectangular planes. Taking a 20ml syringe as an example, a protrusion with a width of 3mm and a length of 2mm is set at every 1ml at the end of the inner wall of the syringe; a depression is set at every 2ml on the corresponding side of the pull rod; the adjacent rectangular plane is 1ml complementary, that is Set depressions at 1ml, 3ml, and 5ml on a rectangular plane of the pull rod, and set depressions at 2ml, 4ml, and 6ml on the adjacent rectangular plane. The depressions can fit the inner wall of the syringe.

When in use, the protruding part is located between the adjacent rectangular planes of the pull rod. When the pull rod is to be stopped, the pull rod is slightly rotated so that the depressions and protrusions on the two rectangular planes of the pull rod are opposite to each other, thereby achieving the purpose of preventing sucking back.

Refer to Figures 1 to 3. Concrete implementation steps: 1, the basic steps of the beginning are the same as the general medical syringes now. 2. After extracting the liquid or gas, turn the piston handle so that the depression on the rectangular plane is stuck on the protrusion on the inner wall of the syringe, then remove the syringe from the catheter and take a reading. The catheter is a catheter connected to the human body. 3. Turn the piston handle again, drain the gas or liquid in the syringe, draw the gas or liquid again, and so on.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. All the implementation manners cannot be exhaustively listed here. All obvious changes or variations derived from the technical solutions of the utility model are still within the scope of protection of the utility model.

Claims (3)

1. one kind is extracted hydrarthrosis syringe, comprise syringe, pull bar, piston, piston handle, nipple, needle point, pull bar two ends respectively with piston, piston handle connects, pull bar, piston, piston handle is positioned at syringe, nipple is fixed on syringe end, needle point is fixed on nipple, it is characterized in that: described pull bar is made up of three rectangle planes, a long limit of three rectangle planes links together, another long limit of three rectangle planes is provided with several equidistant depressions, the cross section of described pull bar is bifurcation font, the inwall tail end of described syringe is provided with and several the equidistant projections caving in corresponding.

2. a kind of extraction hydrarthrosis syringe as claimed in claim 1, it is characterized in that: the wide of described projection is 3mm, long is 2mm.

3. as claimed in claim 1 a kind of extract hydrarthrosis syringe, it is characterized in that: described in be recessed in setting that two adjacent rectangle planes stagger.