JPH0739541A - Vacuum blood collecting needle - Google Patents

Abstract

PURPOSE:To obtain a vacuum blood collecting needle which makes collection of blood easy even for an inexperienced person by providing a transparent resin cover at the middle part of the needle and making holes at the middle of the needle opened inside this transparent resin cover with a rubber cap placed at another end of the needle. CONSTITUTION:A small hole 5 is opened at the middle part of the needle 1 and the transparent resin cover 2 is set and adjusted to cover this part in order to connect the small hole 5 with the inside of a hollow opening part made in the cover 2, and the cover 2 is conected and fixed firmly with the needle 1, lest the blood flowing into the hollow opening part 6 should leak. Then, the end part of the opposit side of the needle is covered with a rubber cap 3 which prevents the leakage of the blood. When the tip of the needle 1 is inserted into the blood vessel of the subject to be examined, the blood is flowing into the hollow opening part 6 in the resin cover 2 and therefore, the state of collecting blood can be confirmed with the naked eye. After this, by inserting the end part the needle 1 with the rubber cap 3 removed into the rubber plug part of vacuum test tubes, the blood is made to flow into the test tube and the collection of blood into several tubes is made possible by single operation.

Description

Description: BACKGROUND OF THE INVENTION [0001] This invention relates to a vacuum blood collection needle (hereinafter referred to as a blood collection needle) for collecting blood from a blood vessel. When the tip of the needle enters the blood vessel, it can be confirmed that the blood flows in the middle space part (6) of the resin cover (2) of FIGS. 1 and 2, and the tip of the needle (1) enters the blood vessel. In addition, it is a blood collection needle that can easily collect blood. [0002] [Prior Art] In the conventional vacuum blood collection needle (Fig. 3), even if the tip of the needle (1) is inside the blood vessel of the subject when collecting blood, it cannot be confirmed. There was the inconvenience of having to puncture many times or collecting blood with another syringe. [0003] [Problems to be solved by the invention] Manufacturers have also conducted research and development to make it possible to easily collect blood even with difficult-to-identify blood vessels with a vacuum blood collection needle, but cannot meet the needs of users. It was According to the present invention, when the tip of the needle enters the blood vessel, blood flows into the middle space portion (6) of the resin cover (2) of the blood sampling needle (1), which allows confirmation and smooth blood collection. It has a structure that eliminates the drawbacks. [Means for Solving the Problem] (a) A small hole (5) is opened in the middle part of the needle (1) in FIG. 1, and this part is covered with a transparent resin, and the inside of this is a medium space part ( Make 6). The incoming blood is prevented from leaking into the intermediate space (6), and the needle and the resin are combined and fixed. One needle has a rubber cap (3) to prevent blood leakage. The blood collecting needle configured in this way. (B) Separate the needles (1) and (3) in FIG. 2, cover the middle part with a transparent resin cover (2), and provide the middle space part (6). Needles (1) and (3) are adhesively bonded to the resin cover,
Prevent blood leakage. The blood collection needle having the above structure.
The size of the middle space portion (6) is determined by the average blood pressure of the human body. [Operation] To describe this operation, when the tip of the needle (1) enters the blood vessel, blood flows into the middle space portion (6) and the middle space portion (6) becomes red. It can be seen that the tip of the needle (1) has surely entered the blood vessel, and blood can be easily collected with a vacuum test tube. [Example] [Example] When the tip of the needle (1) enters a blood vessel of a subject,
Blood flows into the middle space portion (6) of the resin cover (2), which is visually confirmed. Then push the rubber stopper of the vacuum test tube into the rubber cuff of the needle,
Since blood easily flows into the test tubes, it is possible to collect blood from any number of test tubes with one operation. [Advantages of the Invention] By forming the medium space portion (6) in the transparent resin cover (2) of the needle (1), blood flows from the tip of the needle (1) into the medium space portion (6). Since it can be visually confirmed, it is effective for beginners to easily collect blood.

[Brief description of drawings] Figure 1 Cross-sectional view of the present invention Figure 2 Cross-sectional view of the present invention Figure 3 Conventional vacuum blood collection needle [Explanation of symbols] 1. needle 2. Transparent resin cover 3. Rubber cap 4. needle 5. Small hall 6. Middle space

Claims (1)

[Claims] [Claim 1] (B) Cover the middle part of the needle (1) with transparent resin, (B) Make a hole (5) in the middle of the needle (1). (C) Attach a rubber cap (3) to one of the needles. A blank blood collection needle having the above configuration [Claim 2] The empty blood collection needle according to claim 1, which is divided into a needle (1) and a needle (4).