CN222237675U - A quantitative blood collection needle - Google Patents

Abstract

The utility model discloses a quantitative blood collection needle, including a push plate, a piston rod, a syringe, a piston, a connection port, a nipple, a nipple protection cover, a base, a puncture needle protection cover, a puncture needle protection sleeve, a puncture needle, and a connection port protection cover. The piston is connected to the bottom end of the piston rod, and the top end of the piston rod is a push plate. The piston fits tightly with the inner wall of the syringe and can move up and down by pushing the push plate and the piston rod. The outer wall of the syringe is printed with scales, and the blood collection volume can be accurately measured by the scales, solving the problem of insufficient blood collection volume that may occur when judging whether the blood collection volume meets the standard by experience. The utility model is simple, practical, easy to use, and is a disposable product.

Description

Quantitative blood taking needle

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a quantitative blood taking needle.

Background

The blood sampling test is a basic examination measure in medical and health activities, and the judgment on whether the blood sampling amount reaches the examination in the blood sampling process is only judged by naked eyes of nurses, so that the problem of insufficient blood sampling amount can be less caused for nurses with abundant experience, and the medical consumable waste and the pain of the patient caused by puncture of blood sampling needles can be caused by inaccurate judgment for young nurses. In addition, for patients whose blood is difficult to collect, the outflow of blood from the patients is slow and small, and it is difficult for nurses of high and low annual cost to judge the blood collection amount. In intensive care units, the arterial puncture catheter is often used to collect blood through an external three-way opening, and the problems described above also exist and there is a lack of special blood collection tools for collecting blood. Therefore, there is a need to design a lancing device that is easy to operate to address the above-described issues.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a quantitative lancet.

The utility model relates to a quantitative blood taking needle which comprises a push plate, a piston rod, a needle cylinder, a piston, a connecting port, a nipple protecting cover, a base, a puncture needle protecting cover, a puncture needle and a connecting port protecting cover. The base, the puncture needle protection cover and the puncture needle form a puncture structure together. The piston is connected to the bottom end of the piston rod, the top end of the piston rod is provided with a push plate, the piston is tightly attached to the inner wall of the needle cylinder, and the push plate and the piston rod can be pushed to move up and down. The outer wall of the needle cylinder is printed with scales, the bottom end is a nipple, and one side of the bottom end is a connecting port. The base and the protective cover of the connecting port can be tightly connected to the connecting port.

Further, the shape and the size of the nipple, the connection port protective cover, the nipple protective cover and the base are consistent with those of clinically common tools. The nipple can be tightly connected with structures such as a tee joint and the like.

Further, the puncture needle protecting sleeve is arranged outside the puncture needle and wraps the puncture needle, and blood is not discharged before the puncture needle protecting sleeve is punctured. After the blood collection tube is connected, the puncture needle punctures the puncture needle protective sleeve, and blood flows out.

The utility model is simple and practical, is simple and convenient to use, and is a disposable product. The outer wall of the needle cylinder is provided with scales, so that the blood sampling amount can be accurately measured through the scales, and the problem that the blood sampling amount is insufficient if the blood sampling amount reaches the standard is solved.

Drawings

FIG. 1 is a schematic view of the structure of the connecting puncture needle of the present utility model;

FIG. 2 is a schematic view of a protective cover for a connection port according to the present utility model;

FIG. 3 is a schematic illustration of the present utility model in connection with a tee;

FIG. 4 is a schematic view showing the connection of the puncture needle with the blood collection tube according to the present utility model;

In the figure, 1, a push plate 2, a piston rod 3, a needle cylinder 4, a piston 5, a connecting port 6, a nipple 7, a nipple protecting cover 8, a base 9, a puncture needle protecting cover 10, a puncture needle protecting cover 11, a puncture needle 12, a tube plug 13, a blood collection tube 14, a three-way opening 15, a three-way valve 16, a three-way valve 17, a catheter 18 and a connecting port protecting cover.

Detailed Description

The head and face cushion 1 consists of an inner bracket and a pillowcase, wherein the head and face cushion 1 is shown in fig. 1 to 4, and the utility model relates to a quantitative blood taking needle which comprises a push plate 1, a piston rod 2, a needle cylinder 3, a piston 4, a connecting port 5, a nipple 6, a nipple protecting cover 7, a base 8, a puncture needle protecting cover 9, a puncture needle protecting cover 10, a puncture needle 11 and a connecting port protecting cover 18. The base 8, the puncture needle protection cover 9, the puncture needle protection cover 10 and the puncture needle 11 form a puncture structure together.

The piston 4 is connected to the bottom end of the piston rod 2, the top end of the piston rod 2 is provided with the push plate 1, the piston is tightly connected with the inner wall of the needle cylinder 3, and the push plate 1 and the piston rod 2 are pushed to move up and down. The outer wall of the needle cylinder 3 is printed with scales, the bottom end is a nipple 6, and one side of the bottom end is a connecting port 5. The base 8 and the connection port protecting cover 18 can be tightly connected to the connection port.

The nipple 6, the connection port 5, the connection port protection cap 18, the nipple protection cap 7, and the base 8 are all formed in the same size as a clinically common tool. The nipple can be tightly connected with structures such as a tee joint and the like.

Further, the puncture needle protecting cover 10 is positioned outside the puncture needle 11 and wraps the puncture needle, so that blood is not discharged until the puncture needle protecting cover 10 is punctured. After the blood collection tube is connected, the puncture needle 11 punctures the puncture needle protective sleeve 10, and blood flows out.

The specific application mode of the utility model in clinic is as follows:

The base 8 of the puncture structure is arranged on the connecting port 5, the nipple protecting cover 7 is taken down, the nipple 6 is connected with the three-way opening 14 externally connected with arterial puncture after the physiological saline is discharged, the blood sampling amount is controlled through the push plate 1, whether the blood sampling amount is reached or not is judged according to the scales printed on the outer wall of the needle cylinder 3, and the problem that whether the blood sampling amount reaches the standard or not is possibly insufficient or excessive and wasted due to the fact that the blood sampling amount is judged empirically is solved. After the blood collection amount is reached, a blood passage between the nipple 6 and the catheter 17 is closed through the three-way valve 15, the puncture needle protective cover 9 is removed, the puncture structure is penetrated into the tube plug 12 at the top of the blood collection tube 13, the puncture needle 11 is penetrated into the puncture needle protective sleeve 10, the tube plug 12 is penetrated, the push plate 1 is pushed to discharge blood into the blood collection tube 13, and then the operation is repeated to collect other blood. After conventional blood collection is completed, the lancing structure can be removed, the port protector cap 18 can be mounted onto the port 5 to close the opening, and blood collection can be resumed for measuring activated whole blood clotting time, or the like.

While the utility model has been described in conjunction with the detailed description thereof, it will be understood by those skilled in the art that the foregoing detailed description is merely illustrative of the utility model and that the utility model is not limited thereto.

Claims (2)

1. A quantitative blood taking needle is characterized by comprising a push plate, a piston rod, a needle cylinder, a piston, a connecting port, a nipple protecting cover, a base, a puncture needle protecting cover, a puncture needle and a connecting port protecting cover, wherein the piston is connected to the bottom end of the piston rod, the top end of the piston rod is the push plate, the piston is tightly attached to the inner wall of the needle cylinder, scales are printed on the outer wall of the needle cylinder, the nipple is arranged at the bottom end, the connecting port is arranged at one side of the bottom end, the base, the puncture needle protecting cover and the puncture needle form a puncture structure together, and the base can be tightly connected to the connecting port.

2. The quantitative blood taking needle according to claim 1, wherein the nipple, the nipple protecting cover, the connecting port protecting cover and the base are all in the same shape and size as a clinically common tool, and can be tightly connected with corresponding structures.