CN211157738U

CN211157738U - Blood sampling transfusion device

Info

Publication number: CN211157738U
Application number: CN201920812981.8U
Authority: CN
Inventors: 魏龙飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-08-04
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a blood sampling transfusion device, which comprises a vein needle, a hose, a transfusion interface and a transfusion end plug, wherein one end of the hose is connected with the vein needle, and the other end of the hose is connected with one end of the transfusion interface; the infusion connector is characterized in that the other end of the infusion connector is an open end and is connected with an infusion end plug in a pulling and inserting mode, and a handle seat is arranged on the infusion connector. The utility model has the advantages that: the replacement of the blood sampling needle head and the infusion apparatus can be realized through the infusion interface without pulling and inserting the vein needle, so that the pain of a patient is reduced.

Description

Blood sampling transfusion device

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to a blood sampling infusion set.

Background

The existing medical disposable blood sampling device is generally characterized in that one end of a hose is connected with a vein needle, the other end of the hose is connected with a blood sampling needle head, the blood sampling needle head is connected with blood sampling equipment, and blood sampling is realized after the vein needle is inserted into a vein of a human body. An existing infusion apparatus is usually connected with an infusion bag or an infusion bottle at one end, and connected with a human body at the other end through a venous needle, but the venous needle can be distinguished due to different patients, for example, some babies need to use a scalp needle or an indwelling needle. For some patients, blood sampling and transfusion are needed, and the conventional blood sampling equipment or transfusion device cannot realize the replacement of blood sampling and transfusion, so that the number of times of needle insertion of the patient is increased, and inconvenience or pain of the patient is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that blood sampling device and infusion set can't match among the prior art, provide a blood sampling and infusion set match each other, need not the blood sampling infusion set of contact pin many times.

In order to realize the purpose, the blood sampling transfusion device designed by the utility model comprises a vein needle, a hose, a transfusion interface and a transfusion end plug, wherein one end of the hose is connected with the vein needle, and the other end of the hose is connected with one end of the transfusion interface; the other end of the infusion interface is an open end and is connected with an infusion end plug in a pulling and inserting manner; the blood sampling transfusion device also comprises a blood sampling needle head or a transfusion device which is connected with the open end of the transfusion interface in a pulling and inserting way.

Further, the venous needle is a scalp needle or an indwelling needle.

Further, the indwelling needle comprises a steel needle and a catheter; the diameter of the catheter is larger than or equal to that of the blood sampling needle.

Further, a handle seat is arranged on the infusion interface; a plug cylinder which is matched with the infusion end plug in a pulling and inserting manner is arranged on the handle seat; one end of the plug cylinder is a seal, the other end of the plug cylinder is an opening, and the opening is covered with a pierceable film.

Furthermore, one end of the infusion end plug is provided with a sharp part for puncturing the membrane.

The utility model has the advantages that: the replacement of the blood sampling needle head and the infusion apparatus can be realized through the infusion interface without pulling and inserting a vein needle, so that the pain of a patient is reduced; in addition, due to the arranged infusion end plug and the plug barrel, the sterility and the sealing of the infusion interface can be ensured, and the safety is good.

Drawings

Fig. 1 is a schematic structural view of the connection between an indwelling needle and an infusion set of an embodiment of the blood sampling and infusion device of the present invention.

Fig. 2 is a schematic structural view of the infusion set of fig. 1 replaced by a blood collection needle.

Fig. 3 is a schematic structural view of the indwelling needle of fig. 2 replaced with a scalp needle.

Fig. 4 is a schematic structural view of another embodiment of the blood sampling and infusion device of the present invention, in which an infusion end plug is inserted into an infusion port.

Fig. 5 is a schematic cross-sectional structure view of the infusion port and the infusion end plug in fig. 4.

Fig. 6 is a schematic structural view of the infusion end plug inserted into the plug barrel in fig. 5.

Fig. 7 is a schematic structural view of the transfusion needle of fig. 4 with the open end inserted.

Fig. 8 is a schematic structural view of the infusion set inserted into the open end of the infusion interface in fig. 4.

In the figure, a scalp acupuncture 1, a hose 2, a handle seat 3, an infusion interface 4, an infusion end plug 5, a sharp part 5.1, a plug cylinder 6, a membrane 7, an indwelling needle 8, a steel needle 8.1, a catheter 8.2, a blood sampling needle head 9, an infusion apparatus 10 and an external cone joint 10.1.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

Example 1

The blood sampling and transfusion device shown in fig. 1-3 comprises a vein needle, a hose 2, a transfusion interface 4 and a transfusion end plug 5, wherein one end of the hose 2 is connected with the vein needle, and the other end of the hose 2 is connected with one end of the transfusion interface 4; the other end of the infusion interface 4 is an open end and is connected with an infusion end plug 5 in a plugging and unplugging way; the blood sampling transfusion device also comprises a blood sampling needle 9 or a transfusion device 10 which is connected with the open end of the transfusion interface 4 in a pulling and inserting way.

The venous needle is a scalp needle 1 or an indwelling needle 8. The remaining needle 8 comprises a steel needle 8.1 and a catheter 8.2; the diameter of the conduit 8.2 is greater than or equal to the diameter of the lancet needle 9. When the device is used, a corresponding matching mode is selected according to needs, for example, when blood is collected, a blood collecting needle head 9 is inserted into the open end of the infusion interface 4, the type of the connected venous needle is selected according to the condition of a patient at the other end of the hose 2, and the venous needle can be a scalp needle 1 or an indwelling needle 8, and certainly, in order to relieve the pain of the patient, the indwelling needle 8 is preferably used; when the patient needs to continue transfusion, the blood sampling needle head 9 is directly pulled out from the transfusion interface 4, the transfusion device 10 is connected to the transfusion interface 4, and the remaining needle 8 at the other end of the hose 2 does not need to be pulled out.

One of the reasons that the existing blood collection needle 9 and the indwelling needle 8 cannot be matched is that the diameter of the blood collection needle 9 is not easy to be too thin for blood collection effect, otherwise, red blood cells are crushed to cause blood hemolysis of collected blood, the catheter 8.2 of the existing indwelling needle 8 is usually thin, and the diameter is smaller than that of the blood collection needle 9, so that the diameter of the catheter 8.2 of the indwelling needle 8 needs to be enlarged for smooth matching of the indwelling needle 8 and the blood collection needle 9 to complete blood collection.

Example 2

The blood sampling and transfusion device shown in fig. 4-8 comprises a vein needle, a hose 2, a transfusion interface 4 and a transfusion end plug 5; one end of the hose 2 is connected with the vein needle, and the other end of the hose 2 is connected with one end of the transfusion interface 4; the other end of the infusion interface 4 is an open end and is connected with an infusion end plug 5 in a pulling and inserting way, and a handle seat 3 is arranged on the infusion interface 4; the handle seat 3 is provided with a plug cylinder 6 which is matched with the infusion end plug 5 in a pulling and inserting way; one end of the plug cylinder 6 is a seal, the other end is an opening, and the opening is covered with a pierceable film 7; the blood sampling transfusion device also comprises a blood sampling needle 9 or a transfusion device 10 which is connected with the open end of the transfusion interface 4 in a pulling and inserting way. As shown in figure 4, the open end of the transfusion interface 4 is inserted with a blood sampling needle head 9, when in use, the blood sampling needle head 9 is connected with blood sampling equipment, and the remaining needle 8 is inserted into a vein to perform blood sampling operation. As shown in fig. 5, an infusion set 10 is inserted into the open end of the infusion interface 4, the infusion set 10 is a conventional infusion set, and has the same structure as the infusion set 10 in embodiment 1, for example, the infusion set disclosed in the chinese utility model patent with publication number CN203694231U, in the infusion set, the intravenous needle seat is connected with the external cone connector 10.1 in a pull-and-insert manner, which is equivalent to inserting the external cone connector 10.1 of the infusion set into the infusion interface 4 of the embodiment, and of course, the inner diameter of the infusion interface 4 of the embodiment is matched with the outer diameter of the external cone connector 10.1 of the infusion set.

The venous needle is a scalp needle 1 or an indwelling needle 8, the venous needle is the scalp needle 1 as shown in fig. 4, the venous needle is the indwelling needle 8 as shown in fig. 7 or 8, and the indwelling needle 8 comprises a steel needle 8.1 and a catheter 8.2; the diameter of the conduit 8.2 is greater than or equal to the diameter of the lancet needle 9. In addition, for the convenience of using the infusion end plug 5 and preventing the infusion end plug from being lost after being pulled out of the infusion interface 4, a plug barrel 6 is arranged on the handle seat 3, and the infusion end plug 5 is inserted into the plug barrel 6 when the infusion end plug 5 is not needed, such as when blood sampling or infusion is carried out. After blood sampling or transfusion, the transfusion end plug 5 needs to be inserted into the transfusion interface 4 again to realize sealing, so that the transfusion end plug 5 needs to be ensured not to be polluted, a penetrable film 7 covers the opening of the plug tube 6 to ensure the cleanness of the interior of the plug tube 6, and the interior of the plug tube 6 is sterile when the plug tube 6 is used for at least the first time, so that the whole device can be subjected to sterile treatment when the device leaves a factory, and particularly the interior of the plug tube 6 is ensured to be in a vacuum state. In order to puncture the membrane 7 quickly and improve the use convenience, one end of the infusion end plug 5 is provided with a sharp part 5.1 for puncturing the membrane 7; in addition, the spike 5.1 ensures that the rupture of the membrane 7 occurs in the central region thereof, so that, when the infusion end plug 5 is pulled out, the membrane 7 can be returned to a nearly horizontal position to close the opening of the plug cylinder 6 as much as possible, and naturally, the return of the membrane 7 can be achieved depending on the material and thickness of the membrane 7 and the specific process parameters, and since this function can be achieved or can be accomplished by a simple thought of a skilled person, and is not a problem to be solved by the present application, the present embodiment will not be described in detail.

The scalp acupuncture 1, the indwelling needle 8, the blood sampling needle head 9 and the like in the embodiment 1 and the embodiment 2 are all the existing models or existing products, the improvement in the embodiment 1 or the embodiment 2 is not the improvement of the size, and the infusion port and the infusion end plug 5 can be the components of the existing infusion device actually, therefore, the size of the infusion port and the infusion end plug 5 is not limited or improved too much in the embodiment 1 or the embodiment 2, and only the size can achieve the purpose of the embodiment, of course, the size of the infusion port is matched with the external conical connector 10.1 or the blood sampling needle head 9 of the existing infusion device 10.

Claims

1. A blood sampling transfusion device is characterized in that: the intravenous infusion set comprises a venous needle, a hose (2), an infusion interface (4) and an infusion end plug (5), wherein one end of the hose (2) is connected with the venous needle, and the other end of the hose (2) is connected with one end of the infusion interface (4); the other end of the transfusion interface (4) is an open end and is connected with a transfusion end plug (5) in a pulling and inserting way, and the blood sampling transfusion device further comprises a blood sampling needle head (9) or a transfusion device (10) which is connected with the open end of the transfusion interface (4) in a pulling and inserting way.

2. The blood collection infusion device of claim 1, wherein: the venous needle is a scalp needle (1) or an indwelling needle (8).

3. The blood collection and infusion device of claim 2, wherein: the indwelling needle (8) comprises a steel needle (8.1) and a catheter (8.2); the diameter of the conduit (8.2) is larger than or equal to that of the blood sampling needle (9).

4. The blood collection infusion device of claim 1, wherein: a handle seat (3) is arranged on the infusion interface (4); a plug cylinder (6) which is matched with the infusion end plug (5) in a pulling and inserting way is arranged on the handle seat (3); one end of the plug cylinder (6) is a seal, the other end of the plug cylinder is an opening, and the opening is covered with a pierceable film (7).

5. The blood collection and infusion device of claim 4, wherein: one end of the infusion end plug (5) is provided with a sharp part (5.1) for puncturing the membrane (7).