CN221949819U - Dialysis pipeline blood sampling device - Google Patents

Abstract

The utility model relates to a dialysis pipeline blood sampling device, which comprises a puncture needle, a blood collecting tube, a hydrophobic and breathable film, a blood sampling cap and a plastic protective sleeve; the blood collecting tube is of an L-shaped structure; the puncture needle is coaxially and fixedly connected to one side of the blood collecting tube, and the inner end of the puncture needle is of an L-shaped structure corresponding to the blood collecting tube; the hydrophobic and breathable film is arranged on the side wall of the corner of the blood collecting tube; the blood sampling cap is correspondingly arranged on the other side of the blood collecting tube, and a straight-line incision is radially arranged on the end surface of the blood sampling cap and used for inserting test paper; the plastic protective sleeve is correspondingly wrapped outside the needle head of the puncture needle, and the rear end of the plastic protective sleeve is fixedly connected with the blood collecting tube. The blood sampling device is simple in structure, can be used for blood sampling of blood glucose monitoring in the dialysis process of dialysis patients, can effectively avoid pain of the patients, improves measurement accuracy, avoids the risk of bleeding, and can prevent the occurrence of needle stick injuries and blood pollution of medical staff.

Description

A blood sampling device for dialysis pipeline

Technical Field

The utility model relates to the technical field of medical blood sampling instruments, in particular to a dialysis pipeline blood sampling device.

Background Art

Hypoglycemia is one of the common complications during hemodialysis. Patients may experience dizziness, sweating, and decreased blood pressure. In severe cases, they may lose consciousness, suffer shock, or even be life-threatening. Therefore, blood sugar monitoring during hemodialysis is common and important. The main blood sugar monitoring technologies include laboratory venous blood sugar, blood gas analyzer arterial blood sugar, continuous interstitial fluid blood sugar, and fingertip capillary rapid blood sugar. The commonly used blood sugar monitoring method for hemodialysis patients during hemodialysis is to use a blood glucose meter to monitor fingertip blood sugar. In addition, domestic and foreign studies have also confirmed that the blood sugar value of the mixed arteriovenous blood at the arterial end of the hemodialysis line of hemodialysis patients measured by a blood glucose meter can also accurately reflect the patient's blood sugar level. Compared with fingertip blood sugar measurement, it may be more accurate in this special group of hemodialysis patients, and it can also avoid pain, reduce bleeding, and reduce contact with patients.

However, the method of using a blood glucose meter to monitor fingertip blood sugar can cause pain to patients, and in special groups such as dialysis patients, there is an increased risk of bleeding at the fingertip puncture site, which may also affect the accuracy of measurements. While using a syringe to extract mixed blood from the arterial end of the pipeline and then dripping it onto a blood glucose meter test strip for blood glucose monitoring can avoid pain for patients, improve measurement accuracy, and avoid the risk of bleeding, using a syringe to extract mixed blood from the arterial end of the pipeline is prone to needlestick injuries and blood contamination. Combining the advantages and disadvantages of both, this device is designed to extract mixed blood from the arterial end of the pipeline, and then use a blood glucose meter to draw blood inside the device to monitor blood sugar. This can avoid the pain caused by fingertip puncture and blood collection, and can also avoid needlestick injuries, improve measurement accuracy, and avoid blood contamination.

Summary of the invention

In view of the above problems, the purpose of the utility model is to provide a dialysis pipeline blood sampling device, which can avoid the pain caused by puncturing blood at the end of the fingertip, and can also avoid needlestick injuries to medical staff, improve measurement accuracy, and avoid blood contamination.

The technical solution adopted by the utility model is as follows:

The utility model proposes a dialysis pipeline blood sampling device, comprising a puncture needle, a blood collecting blood vessel, a hydrophobic breathable membrane, a blood sampling cap and a plastic protective sleeve; the blood collecting blood vessel is an L-shaped structure; the puncture needle is coaxially fixedly connected to one side of the blood collecting blood vessel, and its inner end is an L-shaped structure corresponding to the blood collecting blood vessel; the hydrophobic breathable membrane is arranged on the side wall of the blood collecting blood vessel corner; the blood sampling cap is correspondingly arranged on the other side of the blood collecting blood vessel, and a straight-shaped incision is radially arranged on its end face for inserting a test paper; the plastic protective sleeve is correspondingly wrapped around the outside of the needle head of the puncture needle, and its rear end is fixedly connected to the blood collecting blood vessel.

Preferably, a needle cap is correspondingly provided at the front end of the blood collecting tube to protect the needle tip of the puncture needle, and the opening end of the needle cap is clamped with the front end of the blood collecting tube.

Preferably, the blood sampling cap is made of plastic, and the straight cutout on the end face thereof is kept closed by the elasticity of the plastic under normal conditions.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model has a simple structure and can be used for blood sampling for blood sugar monitoring during dialysis patients. It can effectively avoid the pain of patients, improve measurement accuracy, avoid the risk of bleeding, and prevent needlestick injuries and blood contamination of medical staff.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG. 2 is a schematic diagram of the structure of the blood sampling cap in FIG. 1 when viewed from above.

Among them, the figure marks are: 1-puncture needle; 2-blood collection blood vessel; 3-needle cap; 4-hydrophobic breathable membrane; 5-blood collection cap; 6-plastic protective cover.

DETAILED DESCRIPTION

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation.

1 , a specific structure of an embodiment of a dialysis line blood sampling device proposed by the utility model is given. In this embodiment, the device includes a puncture needle 1 , a blood collection tube 2 , a hydrophobic breathable membrane 4 , a blood sampling cap 5 and a plastic protective cover 6 .

Among them, the blood collecting tube 2 is an L-shaped structure; the puncture needle 1 is coaxially fixedly connected to one side of the blood collecting tube 2, and the inner end of the puncture needle 1 is also an L-shaped structure corresponding to the blood collecting tube 2; the plastic protective cover 6 is correspondingly wrapped around the outside of the needle head of the puncture needle 1, and its rear end is fixedly connected to the blood collecting tube 2; the hydrophobic breathable membrane 4 is arranged on the side wall of the corner of the blood collecting tube 2; the blood sampling cap 5 is correspondingly detachably installed on the other side of the blood collecting tube 2, and can be installed on the rear end of the blood collecting tube 2 by snap-on or threaded connection, and the blood sampling cap 5 is made of plastic material, and the I-shaped incision on its end face is kept closed under normal conditions by the elasticity of the plastic on both sides to prevent blood overflow, and it can be opened with the help of external force when a blood glucose test strip needs to be inserted.

In this embodiment, a needle cap 3 is also provided at the front end of the blood collecting tube 2. The needle cap 3 is arranged on the outside of the needle head of the puncture needle 1 and the plastic protective sleeve 6 to protect the needle head of the puncture needle 1. The open end of the needle cap 3 is clamped with the front end of the blood collecting tube 2.

When an ordinary syringe is used to collect blood from the blood collection port at the arterial end of the dialysis line, a puncture needle must be used to pierce the plastic protective rubber plug of the collection port to collect blood, which is prone to needlestick injuries to medical personnel, inaccurate blood collection volume, and prone to blood contamination. This device has made improvements in the puncture site, and the puncture needle 1 is wrapped with a plastic protective sleeve 6. Under normal circumstances, the puncture needle 1 is wrapped in the plastic protective sleeve 6. When blood is to be collected, the puncture needle 1 in the plastic protective sleeve 6 will pierce the protective sleeve and penetrate into the blood collection interface rubber plug under the action of external force, and the plastic protective sleeve 6 will be blocked outside, and the puncture needle 1 will enter the rubber plug. When the collection is completed, the puncture needle 1 is pulled out, and the plastic protective sleeve 6 will rebound to wrap the puncture needle 1. During the whole process, the puncture needle 1 is not exposed, which prevents the puncture needle from accidentally injuring the medical personnel who are operating.

Connected to the puncture needle 1 is a blood collection tube 2, and a blood sampling cap 5 is provided at the end of the blood collection tube 2. After the blood is collected, the blood glucose test strip will be inserted into the device to take blood, and the blood will be sucked by the blood glucose meter test strip. Connected to the corner side wall of the blood collection tube 2 is a hydrophobic breathable membrane 4, which is used to ensure that the blood can flow smoothly into the blood collection cavity 3, but it can also ensure that the blood will not flow out of the device to the outside and cause blood contamination. When blood is seen flowing into the lumen, remove the device, cover the puncture needle 1 part and the hydrophobic breathable membrane 4 with a protective sleeve, connect the blood glucose meter to the blood glucose meter test strip, insert the tail end of the device, and use the blood glucose meter test strip to suck the blood there for blood glucose measurement. After the measurement, put the device into the corresponding medical waste bin.

Matters not described in detail in this utility model are all known technologies.

The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims (3)

1. A dialysis tubing blood collection device, characterized in that: the device comprises a puncture needle, a blood collecting tube, a hydrophobic and breathable film, a blood collecting cap and a plastic protective sleeve; the blood collecting tube is of an L-shaped structure; the puncture needle is coaxially and fixedly connected to one side of the blood collecting tube, and the inner end of the puncture needle is of an L-shaped structure corresponding to the blood collecting tube; the hydrophobic and breathable film is arranged on the side wall of the corner of the blood collecting tube; the blood sampling cap is correspondingly arranged on the other side of the blood collecting tube, and a straight-line incision is radially arranged on the end surface of the blood sampling cap and used for inserting test paper; the plastic protective sleeve is correspondingly wrapped outside the needle head of the puncture needle, and the rear end of the plastic protective sleeve is fixedly connected with the blood collecting tube.

2. The dialysis tubing lancing device according to claim 1, wherein: the front end of the blood collection tube is correspondingly provided with a needle cap for protecting the needle head of the puncture needle, and the opening end of the needle cap is clamped with the front end of the blood collection tube.

3. The dialysis tubing lancing device according to claim 1, wherein: the blood sampling cap is made of plastic, and the straight-shaped notch on the end face of the blood sampling cap is kept closed under the conventional state by means of elasticity of plastic.