CN221730590U - Disposable connecting blood gas analysis needle - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a disposable connecting blood gas analysis needle which comprises a puncture part, wherein the puncture part is in threaded connection with a needle connector, and a blood collection tube is sleeved in the needle connector; the needle connecting device is characterized in that a first connecting hole is formed in the needle connecting device, threads matched with the puncture part are formed in the inner surface of the first connecting hole, the puncture part is convenient to fix quickly through threaded connection of the needle connecting device and the puncture part, and blood collection tubes can be inserted into the needle connecting device through the needle collecting tube, so that blood collection is completed through the connection with the fixed puncture part, and the relative positions of the puncture part and the blood collection tubes are not required to be adjusted. Specifically, when actually collecting blood, firstly, the puncture part is in threaded connection with the needle connector, medical staff extracts blood through the puncture part, the puncture part is fixed by using the adhesive tape, then the blood collection tube is inserted into the needle connector, blood flows into the blood collection tube through the tail end of the puncture part, and then blood can be extracted, so that the blood extraction operation is simplified, the puncture times of patients are reduced, the workload of the medical staff is reduced, and the clinical practicability is strong.

Description

Disposable connected blood gas analysis needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a disposable connected blood gas analysis needle.

Background Art

In clinical medicine, clinical test results are an important basis for doctors' diagnosis. In order to conduct blood gas analysis and blood sample testing on patients, arterial blood and venous blood are usually drawn separately. The tools used are arterial blood gas needle and venous blood collection needle respectively. However, at least two punctures and blood draws will make some patients difficult to understand and take non-cooperative measures, which also increases the workload of nurses. In addition, for patients with anemia and severe blood loss, multiple blood draws will increase the physical burden on patients.

Therefore, in clinical practice, blood gas analysis is usually performed directly using a venous blood collection needle. The tail end of the venous blood collection needle is first removed, and then the tail tube mouth is connected to the spiral mouth of the blood gas needle. After blood collection is completed, the blood collection needle and the blood gas needle need to be removed. The nurse needs to use force to remove the tail end of the blood collection needle, which can easily cause blood leakage from the tail end of the blood collection tube, and there is a risk of bringing the vascular puncture needle out of the patient's body if excessive force is used.

Utility Model Content

The utility model aims to provide a disposable connected blood gas analysis needle to solve the above-mentioned deficiencies in the prior art.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A disposable connected blood gas analysis needle comprises a puncture portion, the puncture portion is threadedly connected to a needle connector, a blood collection tube is sleeved in the needle connector; a first connecting hole is provided on the needle connector, and a thread matching the puncture portion is provided on the inner surface of the first connecting hole.

Furthermore, the puncture part comprises a vascular puncture needle, the outer surface of the end of the vascular puncture needle is fixedly connected with a needle handle, the end of the vascular puncture needle is connected with a hose, and the end of the hose is connected with a connecting part.

Furthermore, the connecting part includes a needle seat connected to the end of the hose, and the needle seat is respectively provided with a tube plug puncture needle and a rubber protective sleeve, and the rubber protective sleeve is arranged on the outer surface of the tube plug puncture needle. The needle seat is also fixed with a connector, and the outer surface of the connector is provided with a thread.

Furthermore, the blood collection tube comprises a blood collection tube and a blood collection rod slidably connected to the blood collection tube, a piston is installed at the end of the blood collection rod, and a connecting portion is provided at the end of the blood collection tube.

Furthermore, the connecting portion comprises a tube cover, the tube cover is threadedly connected to the end of the blood collection tube, a second connecting hole is opened on the tube cover, and a rubber layer is arranged in the second connecting hole.

Furthermore, the blood collection tube is also provided with scale lines.

Furthermore, a limiting ring is fixedly provided inside the needle connector.

In the above technical solution, the disposable connected blood gas analysis needle provided by the utility model has the following beneficial effects:

The threaded connection between the needle connector and the puncture part facilitates quick fixation of the puncture part, and the blood collection tube can be connected to the fixed puncture part by inserting the needle connector to complete blood collection, without adjusting the relative positions of the puncture part and the blood collection tube. Specifically, when actually collecting blood, the puncture part is first threadedly connected to the needle connector, and the medical staff draws blood through the puncture part, fixes the puncture part with tape, and then inserts the blood collection tube into the needle connector. The blood flows into the blood collection tube through the tail end of the puncture part to complete the blood drawing, which simplifies the blood drawing operation, reduces the number of punctures for patients, reduces the workload of medical staff, and has strong clinical practicality.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is a schematic diagram of the overall structure provided by an embodiment of the utility model;

FIG2 is a schematic diagram of an explosion structure provided by an embodiment of the utility model;

FIG3 is a schematic diagram of the structure of the puncture portion provided in an embodiment of the utility model;

FIG4 is a schematic diagram of the structure of a needle connector provided by an embodiment of the utility model;

FIG5 is a schematic diagram of the structure of the cylinder cover provided by an embodiment of the utility model;

FIG6 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 7 is a schematic diagram of a local enlarged structure of A provided in an embodiment of the utility model.

Description of reference numerals:

1. Puncture part; 11. Blood vessel puncture needle; 12. Needle handle; 13. Hose; 14. Connecting part; 140. Needle seat; 141. Tube plug puncture needle; 142. Rubber protective cover; 143. Connecting head; 2. Needle receiver; 21. First connecting hole; 22. Limiting ring; 3. Blood collection tube; 31. Blood collection tube; 32. Blood collection rod; 33. Piston; 34. Connecting part; 341. Tube cover; 342. Second connecting hole; 343. Rubber layer; 4. Graduation line.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

Please refer to Figures 1-7. The disposable connected blood gas analysis needle includes a puncture part 1, and the puncture part 1 is threadedly connected to a needle receiver 2, and a blood sampling tube 3 is sleeved in the needle receiver 2; a first connecting hole 21 is opened on the needle receiver 2, and the inner surface of the first connecting hole 21 is provided with a thread matched with the puncture part 1. When actually collecting blood, the puncture part 1 is first threadedly connected to the needle receiver 2, and the medical staff draws blood through the puncture part 1, fixes the puncture part 1 with tape, and then inserts the blood sampling tube 3 into the needle receiver 2. The blood flows into the blood sampling tube 3 through the tail end of the puncture part 1 to complete the blood drawing, thereby reducing the number of punctures for patients and the workload of medical staff, and has strong clinical practicality.

In an embodiment further provided by the utility model, the puncture part 1 includes a vascular puncture needle 11, a needle handle 12 is fixedly connected to the outer surface of the end of the vascular puncture needle 11, a hose 13 is connected to the end of the vascular puncture needle 11, and a connecting part 14 is connected to the end of the hose 13. Medical staff hold the needle handle 12 to insert the vascular puncture needle 11 into the patient's body.

In an embodiment further provided by the present invention, the connecting part 14 includes a needle seat 140 connected to the end of the hose 13, and the needle seat 140 is respectively provided with a tube plug puncture needle 141 and a rubber protective sleeve 142, and the rubber protective sleeve 142 is arranged on the outer surface of the tube plug puncture needle 141. A connecting head 143 is also fixedly provided on the needle seat 140, and the outer surface of the connecting head 143 is provided with a thread. The top end of the rubber protective sleeve 142 is thickened so that after the tube plug puncture needle 141 completes blood drawing, the rubber protective sleeve 142 can rebound quickly to prevent air from entering the rubber protective sleeve 142; the connecting head 143 is adapted to the first connecting hole 21 of the needle receiver 2 and is connected through threads. The connection head 143 can quickly complete the connection between the puncture part 1 and the needle receiver 2 and the fixation of the puncture part 1, saving time for medical staff.

In an embodiment further provided by the utility model, the blood collection tube 3 includes a blood collection tube 31 and a blood collection rod 32 slidably connected to the blood collection tube 31, a piston 33 is installed at the end of the blood collection rod 32, and a connecting portion 34 is provided at the end of the blood collection tube 31. By pulling the blood collection rod 32, venous blood can be extracted or storage space can be reserved for arterial blood. Anticoagulants are pre-placed in the blood collection tube 31 to facilitate subsequent detection and analysis of the blood.

In the embodiment further provided by the present invention, the connecting portion 34 includes a tube cover 341, and the tube cover 341 is threadedly connected to the end of the blood sampling tube 31. A second connecting hole 342 is opened on the tube cover 341, and a rubber layer 343 is provided in the second connecting hole 342. The second connecting hole 342 is directly opposite to the tube plug puncture needle 141 so that when the blood sampling tube 3 is inserted into the needle receiving device 2, the tube plug puncture needle 141 is inserted into the blood sampling tube 3 through the second connecting hole 342 and the rubber layer 343; the rubber layer 343 can isolate external air from entering the interior of the blood sampling tube 3, and when the tube plug puncture needle 141 is inserted into the rubber layer 343 and extends into the blood sampling tube 31, blood can be drawn. The rubber protective sleeve 142 of the tube plug puncture needle 141 is tightly abutted against the rubber layer 343 to prevent external air from entering during the blood drawing process. After the blood is drawn, the rubber protective sleeve 142 and the rubber layer 343 of the blood sampling tube 3 are pulled out and automatically rebound to prevent air from entering the interior thereof. Therefore, blood collection can be performed continuously for multiple times to facilitate blood sample testing.

In an embodiment further provided by the present invention, the blood collection tube 3 is further provided with scale lines 4, and medical personnel can judge the amount of blood drawn according to the scale lines 4.

In an embodiment further provided by the utility model, a limiting ring 22 is fixedly provided in the needle connector 2, and the limiting ring 22 can prevent the barrel cover 341 from directly contacting the end of the needle connector 2, thereby preventing the rubber protective sleeve 142 from shrinking too tightly and being unable to rebound quickly, causing the tube plug puncture needle 141 to be exposed to the air. In addition, when the blood collection tube 3 is inserted into the needle connector 2 and abuts against the limiting ring 22, the tube plug puncture needle 141 is inserted into the blood collection tube 3.

Working principle:

When actually collecting blood, firstly, the connector 143 of the puncture part 1 is threadedly connected to the first connecting hole 21 of the needle receiver 2. The medical staff draws blood through the blood vessel puncture needle 11 of the puncture part 1, and fixes the needle handle 12 of the puncture part 1 with tape, and then inserts the blood collection tube 3 into the needle receiver 2 until it abuts against the limit ring 22. At this time, the tube plug puncture needle 141 of the puncture part 1 successively penetrates the rubber protective sleeve 142 and the rubber layer 343 on the tube cover 341, and extends into the blood collection tube 31. Anticoagulants are pre-placed in the blood collection tube 31 to facilitate subsequent various blood tests and analyses. The blood passes through the blood vessel puncture needle 11, the hose 13, the needle seat 140, and the tube plug puncture needle 141 in turn until it flows into the blood collection tube 31, thereby reducing the number of punctures for patients and the workload of medical staff, and having strong clinical practicality.

It is worth noting that the operations for drawing venous blood and arterial blood are slightly different. When collecting venous blood, it is necessary to pull the blood sampling rod 32 to provide negative pressure to draw venous blood from the patient's body. The existing vacuum blood collection tube 3 can also be used directly. Since the rubber protective sleeve 142 will close after the tube plug puncture needle 141 is separated from the rubber layer 343 of the blood collection tube 31 to prevent blood from contacting the air, continuous blood drawing can be performed to facilitate blood sample testing; when collecting arterial blood, it is necessary to pull the blood sampling rod 32 in advance before blood collection, and the position can be confirmed by the scale line 4. The reserved space is the amount of arterial blood drawn, which is convenient for medical staff to operate.

The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (7)

1. Disposable connected blood gas analysis needle, its characterized in that: the blood collection device comprises a puncture part (1), wherein the puncture part (1) is in threaded connection with a needle connector (2), and a blood collection tube (3) is sleeved in the needle connector (2);

The needle connector (2) is provided with a first connecting hole (21), and threads matched with the puncture part (1) are arranged on the inner surface of the first connecting hole (21).

2. The single-use connected blood gas analysis needle according to claim 1, wherein the puncture part (1) comprises a blood vessel puncture needle (11), a needle handle (12) is fixedly connected to the outer surface of the end part of the blood vessel puncture needle (11), a hose (13) is connected to the end part of the blood vessel puncture needle (11), and a connecting part (14) is connected to the end part of the hose (13).

3. The disposable connecting type blood gas analysis needle according to claim 2, wherein the connecting portion (14) comprises a needle seat (140) connected to the end portion of the hose (13), a tube plug puncture needle (141) and a rubber protection sleeve (142) are respectively arranged on the needle seat (140), the rubber protection sleeve (142) is arranged on the outer surface of the tube plug puncture needle (141), a connector (143) is fixedly arranged on the needle seat (140), and threads are arranged on the outer surface of the connector (143).

4. The single-use connected blood gas analyzing needle according to claim 1, wherein the blood collection tube (3) comprises a blood collection tube (31) and a blood collection rod (32) slidingly connected with the blood collection tube (31), a piston (33) is mounted at the end of the blood collection rod (32), and a communicating part (34) is arranged at the end of the blood collection tube (31).

5. The disposable connecting type blood gas analyzing needle according to claim 4, wherein the communicating portion (34) comprises a cylinder cover (341), the cylinder cover (341) is in threaded connection with the end portion of the blood collection cylinder (31), a second connecting hole (342) is formed in the cylinder cover (341), and a rubber layer (343) is arranged in the second connecting hole (342).

6. The single-use connected blood gas analyzing needle according to claim 5, wherein the blood collection tube (3) is further provided with graduation marks (4).

7. The single-use connected blood gas analysis needle according to claim 1, wherein a limiting ring (22) is also fixedly arranged in the needle connector (2).