CN220655580U - New medical micro-injury living blood collection device - Google Patents

Abstract

The utility model relates to a novel medical micro-damage living body blood sampling device which comprises a hollow communicating pipe, wherein the front end of the communicating pipe is provided with a blood taking needle assembly, the tail end of the communicating pipe is provided with a sealing plug with holes, and the side surface of the communicating pipe is provided with a hose communicated with the blood taking needle assembly. The utility model can reduce the damage to the sampling blood vessel, does not need high cooperation of patients, further reduces the pain of the child patient, and improves the working efficiency of medical staff.

Description

New medical micro-injury living blood collection device

Technical field

The utility model belongs to the technical field of medical devices, and in particular relates to a new type of medical micro-injury living body blood collection device.

Background technique

In medical institutions, when collecting blood samples and infusing patients, syringes, blood collection needles, etc. are indispensable blood collection devices. For the sake of medical safety, blood collection needles, syringes, etc. are all for one-time use to avoid cross-infection caused by multiple uses.

Since the blood collection needles currently on the market are all purely rigid metal needles, when applied to children, the technical level of the operator is high and often requires 1 to 2 people to assist. At the same time, during the process of replacing the blood collection tube, the patient often Crying and restless children cause the needle to damage blood vessels, which increases the risk of vasospasm, subcutaneous hematoma, infection, etc. at the blood collection site. It only increases the pain of the children and the anxiety of the parents, and also causes inconvenience to the development of clinical work.

In addition, if the needle is not protected after blood collection or infusion, there is still a risk of injuring medical staff. At present, what is widely used in hospitals and other medical institutions is to put a protective cover on the needle to protect the needle or prevent the needle from stabbing medical staff. At the same time, some blood collection needles use the technical means of needle retraction. The retraction structure with spring may During the blood collection process, the needle retracts due to misoperation, causing inconvenience and losses to patients and medical staff.

Utility model content

The technical problem to be solved by this utility model is to provide a new type of medical micro-injury living blood collection device, which reduces damage to the sampling blood vessels, does not require a high degree of cooperation from the patient, and improves the work efficiency of medical personnel.

The technical solution adopted by the utility model to solve the technical problem is to provide a new type of medical micro-injury living body blood collection device, which includes a hollow connecting tube. The front end of the connecting tube is provided with a blood collection needle assembly, and the side of the connecting tube is provided with a blood collection needle assembly. There is a hose connected with the blood collection needle assembly. The blood collection needle assembly includes a needle sleeve and a rigid metal needle core concentrically arranged inside the blood collection needle assembly. The tail end of the rigid metal needle core is connected from the The end of the tube goes out, and a pair of self-adhesive films are provided on both sides of the communicating tube.

Further, the material of the needle sleeve is flexible polyurethane.

Furthermore, a handle is provided at the rear end of the rigid metal needle core. When the handle is clamped on the communication tube, the end surface of the needle sleeve is flush with the needle of the rigid metal needle core.

Further, the blood collection tube puncture head is covered with an elastic silicone sheath.

Further, the needle sleeve is coated with a heparin layer.

beneficial effects

Through the cooperation of the needle sleeve and the rigid metal needle core in the blood collection needle assembly, the needle sleeve rebounds and surpasses the metal needle core while breaking through the blood vessel wall, preventing the needle from piercing the opposite side blood vessel wall and greatly increasing the puncture time. success rate.

After the needle enters the blood vessel cavity, the metal needle core is pulled out from the rear of the assembly and the needle sleeve is completely pushed in. Only the flexible structure is retained in the blood vessel cavity, which can reduce damage to the blood vessel during long-term sampling.

The communication tube of this utility model is provided with self-adhesive films on both sides. After the blood collection needle assembly is inserted into the blood vessel, it can be quickly pasted on the patient's skin and fix the blood collection device to prevent accidental slippage of the needle due to the patient being irritated and agitated, thus eliminating the need for the patient. High cooperation can also reduce the pain of children and improve the work efficiency of medical staff.

Description of the drawings

Figure 1 is a schematic structural diagram of a new type of medical micro-injury living blood collection device.

Figure 2 is an enlarged structural diagram of the blood collection needle assembly in Figure 1.

Among them, 1-connected tube; 2-self-adhesive film; 3-grip; 4-blood collection tube puncture head; 401-elastic silicone sheath; 5-blood collection needle assembly; 501-needle sleeve; 502-rigid metal needle core ; 503-hole sealing plug; 6-hose.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

As shown in Figures 1 and 2, the present utility model provides a new type of medical micro-injury living body blood collection device, which includes a hollow communication tube. The front end of the communication tube is provided with a blood collection needle assembly, and the tail end of the communication tube is provided with a blood collection needle assembly. A sealing plug with a hole, and a hose connected to the blood collection needle assembly is provided on the side of the communication tube. The blood collection needle assembly includes a needle sleeve and a rigid metal needle core concentrically located inside the blood collection needle assembly. The tail end of the rigid metal needle core penetrates from the end of the communication tube, and a pair of self-adhesive films are provided on both sides of the communication tube.

When the rigid metal needle core is withdrawn, the center of the hole sealing plug automatically rebounds to form a squeeze seal, preventing the collected blood from flowing out from the tail end of the communication tube.

In a specific embodiment, the needle sleeve is made of flexible polyurethane.

In a specific embodiment, a handle is provided at the rear end of the rigid metal needle core, and the handle includes an end cap clamped on the rear end of the communication tube and a wrench located on one side of the end cap. When the handle is clamped on the communication tube, the end surface of the needle sleeve is flush with the needle of the rigid metal needle core.

In a specific embodiment, the blood collection tube puncture head is covered with an elastic silicone sheath, which can protect the operator from occupational exposure and prevent blood from flowing back or spraying out during the replacement of the blood collection tube.

In a specific embodiment, the needle sleeve is coated with a heparin layer. The heparin layer can prevent blood coagulation and blockage during the operation, resulting in blood collection failure.

When the utility model is used, only one medical staff is required to peel off the self-adhesive film gasket and pierce the blood collection needle assembly into the patient's blood vessel. The needle sleeve made of elastic polyurethane will partially retreat during the puncture. , does not affect the rigid metal needle core to puncture the skin; after the rigid metal needle core breaks through the blood vessel wall, the front resistance disappears, the needle sleeve will quickly rebound to the initial length and break the skin along the rigid metal needle core and the subcutaneous tissue into the blood vessel cavity. At this time, the blood will enter the gap between the needle sleeve seam and the rigid metal needle core, indicating that the head end has reached the blood vessel cavity, and then the rigid metal needle core can be pulled out in cooperation to achieve safe placement. Tube.

Claims (5)

1. A new type of medical micro-injury living body blood collection device, including a hollow communication tube (1). The front end of the communication tube (1) is provided with a blood collection needle assembly (5), and the tail end of the communication tube (1) is provided with a blood collection needle assembly (5). There is a perforated sealing plug (503), and a hose (6) communicated with the blood collection needle assembly (5) is provided on the side of the communication tube (1). The characteristic is that the blood collection needle assembly (5) includes The needle sleeve (501) and the rigid metal needle core (502) concentrically arranged inside the blood collection needle assembly (5), the tail end of the rigid metal needle core (502) passes through the end of the communication tube (1) A pair of self-adhesive films (2) are provided on both sides of the communication tube (1). 2. A new type of medical micro-injury living blood collection device according to claim 1, characterized in that the material of the needle sleeve (501) is flexible polyurethane. 3. A new type of medical micro-injury living body blood collection device according to claim 1, characterized in that the tail end of the rigid metal needle core (502) is provided with a grip (3). When the grip (3) is stuck, When connected to the communication tube (1), the end surface of the needle sleeve (501) is flush with the needle of the rigid metal needle core (502). 4. A new type of medical micro-injury living body blood collection device according to claim 1, characterized in that the other end of the flexible tube (6) is provided with a blood collection tube puncture head (4), and the blood collection tube puncture head (4) 4) The jacket has an elastic silicone sheath (401). 5. A new type of medical micro-injury living blood collection device according to claim 1, characterized in that the inside of the needle sleeve (501) is coated with a heparin layer.