CN210130846U - Blood taking needle used in cooperation with indwelling needle - Google Patents

Abstract

The utility model discloses a blood collection needle used in conjunction with an indwelling needle, comprising: a connecting head, which is used for connecting with the interface of the indwelling needle; There is a protective cap; the blood collection needle is used to connect with a vacuum blood collection tube; the connecting tube, one end of the connecting tube is connected with the connecting head, the other end of the connecting tube is connected with the blood sampling needle, the connecting tube is connected with a branch tube, and one end of the branch tube is connected to The pipe is connected, the other end of the branch pipe is connected with the liquid sealing head, and the connecting pipe between the branch pipe and the blood collection needle is provided with a water stop clip. The blood collection needle used in conjunction with the indwelling needle provided by the utility model has the advantages of convenient operation and simple structure; it can effectively collect blood for patients with the indwelling needle, and relieve the pain of repeated puncturing; It can quickly collect the blood of patients to avoid blood pollution; it can also be used for the treatment of intravenous bolus injection of drugs after blood collection.

Description

A kind of blood collection needle used with indwelling needle

technical field

The utility model belongs to the technical field of medical devices, in particular to a blood collection needle used in conjunction with an indwelling needle.

Background technique

Collecting blood samples is a commonly used nursing operation in clinical work. At present, when blood collection needles are used with vacuum blood collection tubes, venipuncture is required for patients. Some patients need to collect blood multiple times in different time periods, which requires multiple steel needles. Puncture, repeated steel needle puncture will increase the number of punctures and bring pain to the patient; in addition, in emergency rescue, it is necessary to use an indwelling needle to establish a venous channel for the patient as soon as possible, and to collect blood samples as soon as possible, and complete two operations at the same time. , the existing method is to use a syringe to directly connect the indwelling needle interface to draw blood, and then inject it into the blood collection tube, which is troublesome and easy to cause blood pollution.

Utility model content

In view of the above deficiencies in the prior art, the utility model provides a blood collection needle used in conjunction with an indwelling needle, which has a simple structure and is convenient to operate; it can effectively collect blood for a patient with an indwelling needle, and relieve the pain of repeated puncturing of the patient; Improve work efficiency, especially in emergency rescue, can quickly collect patients' blood to avoid blood pollution; in addition, it can also be used for intravenous injection of drugs after blood collection.

In order to achieve the above purpose, the solution adopted by the present invention is: a blood collection needle used in conjunction with an indwelling needle, which is characterized by comprising: a connecting head, used for connecting with the interface of the indwelling needle; a liquid sealing head, used for bolus injection Medicine or sealing solution, the sealing head is detachably connected with a protective cap; a blood collection needle is used to connect with a vacuum blood collection tube; a connecting tube, one end of the connecting tube is connected with the connecting head, and the other end of the connecting tube is connected with the blood collection needle The connecting pipe is connected with a branch pipe, one end of the branch pipe is connected with the connecting pipe, the other end of the branch pipe is connected with the liquid sealing head, and a water stop clip is arranged on the connecting pipe between the branch pipe and the blood collection needle.

Further, the connecting head is internally provided with threads for threaded connection with the interface of the indwelling needle.

Further, a rubber protective sleeve is fixedly sleeved outside the blood collection needle, and a plastic protective sleeve is detachably sleeved outside the rubber protective sleeve.

Further, the inner diameter of the connecting pipe is less than 2 mm, and the length of the connecting pipe is less than 100 mm.

Further, the inner diameter of the branch pipe is less than 1.5mm, and the length of the branch pipe is less than 20mm.

The beneficial effects of the utility model are: when collecting blood for a patient with an indwelling needle, the connecting head can be directly connected to the interface of the indwelling needle, and the blood collection needle can be connected to the vacuum blood collection tube for blood collection, and the blood collection needle is convenient to operate and simple in structure It can effectively collect blood for patients with indwelling needles, reducing the pain of repeated punctures; and can improve work efficiency, especially in emergency rescue, can quickly collect blood from patients to avoid blood pollution; in addition, collecting blood After completion, the drug can also be injected through the sealing liquid head as a treatment.

Description of drawings

FIG. 1 is a schematic structural diagram of a blood collection needle used with an indwelling needle according to the present invention.

In the attached picture:

1-Connecting head, 2-Liquid sealing head, 3-Protective cap, 4-Blanching needle, 5-Rubber protective sleeve, 6-Connecting tube, 7-Branch tube, 8-Water stop clip, 9-Plastic protective sleeve.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model are described clearly and completely below. Obviously, the described embodiments are a part of the present utility model rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1: the present utility model provides a blood collection needle used in conjunction with an indwelling needle. The blood collection needle is a disposable blood collection needle, comprising: a connecting head 1 for connecting with the interface of the indwelling needle; a liquid sealing head 2, It is used to inject medicine and sealing liquid, the sealing head 2 is detachably connected with a protective cap 3, and the connecting column of the protective cap 3 extends into the pipeline of the sealing liquid head 2, and is sealedly connected with the sealing liquid head 2; the blood collection needle 4 , used to connect with a vacuum blood collection tube, the blood collection needle 4 is fixedly sleeved with a rubber protective sleeve 5, and the rubber protective sleeve 5 is detachably sleeved with a plastic protective sleeve 9; connecting pipe 6, one end of the connecting pipe 6 is connected to the The head 1 is connected, the other end of the connecting pipe 6 is connected with the blood collection needle 4, the connecting pipe 6 is connected with a branch pipe 7, one end of the branch pipe 7 is connected with the connecting pipe 6, and the other end of the branch pipe 7 is connected with the liquid sealing head 2, and the branch pipe 7 The connecting tube 6 with the blood collection needle 4 is sleeved with a water stop clip 8 . When it is necessary to collect blood for a patient who has just established an indwelling needle venous channel or already has an indwelling needle, you can directly connect the connector 1 to the indwelling needle interface, connect the blood collection needle 4 to the vacuum blood collection tube, and seal the liquid sealing head 2 to stop. The water clip is opened, and the negative pressure of the vacuum blood collection tube is used to collect blood to the vacuum blood collection tube. After the collection is completed, the water stop clip 8 is closed, the protective cap 3 is removed, and the liquid medicine or sealing tube liquid is pushed from the sealing liquid head 2 for use. Intravenous bolus drug treatment or to prevent blood clotting in the indwelling needle, resulting in blood clots, resulting in blockage. The blood collection needle used in conjunction with the indwelling needle has the advantages of convenient operation and simple structure; it can effectively collect blood for patients with the indwelling needle, and relieve the pain of repeated puncturing; and can improve the work efficiency, especially in emergency rescue, can quickly It can collect the blood of patients to avoid blood contamination; it can also be used for the treatment of intravenous bolus drugs after blood collection.

More specifically, the connector 1 is configured as a conical shape, the inside of the conical shape is provided with threads, and the external interface of the indwelling needle is provided with threads. Threaded connection.

In this embodiment, the inner diameter of the connecting pipe 6 is less than 2 mm, the length of the connecting pipe 6 is less than 100 mm, the inner diameter of the branch pipe 7 is less than 1.5 mm, and the length of the branch pipe 7 is less than 20 mm. Controlling the inner diameter and length of the connecting pipe 6 and the branch pipe 7 is to prevent the negative pressure of blood entering the vacuum blood collection tube from the indwelling needle from being too small, resulting in insufficient blood collection.

Instructions:

When a patient with an indwelling needle or a patient who needs to use an indwelling needle collects blood, take out the blood collection needle used in conjunction with the indwelling needle of the present invention, open the water stop clip 8, and seal the protective cap 3 and the liquid sealing head 2 well. The heparin cap of the indwelling needle is unscrewed, the interface of the indwelling needle is provided with a thread outside, and the connecting head 1 is internally provided with a thread, and the connector 1 of the blood collection needle used with the indwelling needle of the present invention is sleeved outside the interface of the indwelling needle And tighten, insert the blood collection needle 4 into the vacuum blood collection tube, through the negative pressure in the vacuum blood collection tube, the blood automatically flows into the vacuum blood collection tube; after the blood collection is completed, close the water stop clip 8, open the protective cap 3, and pass the medicine through the sealing liquid head. 2 Push the injection into the vein to achieve the purpose of drug treatment, or inject the tube sealing solution into the indwelling needle through the sealing liquid head 2 to prevent the blood clotting in the indwelling needle from causing blood clots to block the tube; after the injection of the drug or tube sealing solution is completed, Unscrew the connector 1, cover the interface of the indwelling needle with a heparin cap, dispose of the used blood collection needle, and complete the entire operation. The above operation process requires strict aseptic operation.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit of the technical solutions of the embodiments of the present invention. and range.

Claims (3)

1. A blood taking needle used in cooperation with an indwelling needle is characterized by comprising:

the connector is used for being connected with the interface of the indwelling needle;

the liquid sealing head is used for injecting medicine or tube sealing liquid, and the liquid sealing head is detachably connected with a protective cap;

the blood taking needle is connected with a vacuum blood taking tube;

one end of the connecting pipe is communicated with the connecting head, the other end of the connecting pipe is connected with the blood taking needle, the connecting pipe is communicated with a branch pipe, one end of the branch pipe is communicated with the connecting pipe, the other end of the branch pipe is communicated with the liquid sealing head, and a water stopping clip is arranged on the connecting pipe between the branch pipe and the blood taking needle;

the connector is internally provided with threads for being in threaded connection with a connector of an indwelling needle;

the internal diameter of connecting pipe is less than 2mm, the length of connecting pipe is less than 100 mm.

2. The blood taking needle used together with an indwelling needle according to claim 1, wherein a rubber protective sleeve is sleeved outside the blood taking needle, and a plastic protective sleeve is detachably sleeved outside the rubber protective sleeve.

3. A lancet for use with an indwelling needle according to claim 1, wherein the internal diameter of the manifold is less than 1.5mm and the length of the manifold is less than 20 mm.

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