CN221511910U - A safe venous blood sampling device that can be used for infusion - Google Patents

Abstract

The utility model relates to the technical field of blood sampling devices, and discloses a safe type venous blood sampling device capable of being used for transfusion, which comprises a safe indwelling needle, wherein the side wall of the safe indwelling needle is provided with a wing piece, one side, far away from the wing piece, of the safe indwelling needle is communicated with a first hose, the outer wall of the first hose is sleeved with an adjusting clamp, and the other end of the first hose is fixedly communicated with a first connecting cap; through the arrangement of the adjusting clamp, the threaded head, the first threaded groove, the second threaded groove, the first connecting cap and the second connecting cap, when blood collection is needed, the patient is subjected to blood collection under the action of the safety indwelling needle and the small needle holder, and when the blood collection is finished, the threaded head is removed from the first threaded groove, and then the positive pressure connector is connected with the first connecting cap, so that the patient is subjected to transfusion, the risk of needle puncture injury is reduced, and skin damage, bleeding or blood disease transmission are avoided; the whole process can be used for clamping or dredging the first hose through the adjusting clamp.

Description

A safe venous blood sampling device that can be used for infusion

Technical Field

The utility model relates to the technical field of blood sampling devices, in particular to a safe venous blood sampling device which can be used for infusion.

Background Art

In the medical field, medical staff use various means to collect and obtain physiological and pathological information of the human body for correct diagnosis of diseases. There are usually three ways to collect blood samples: (1) subcutaneous blood collection, which is mostly used for simple classification and counting of blood components, and mostly uses subcutaneous (solid or triangular) blood collection needles; (2) venous blood collection, which can be used for detailed testing of hematology, blood pathogens and other related subject indicators, and is widely used in clinical practice, and mostly uses pen-type or split venous blood collection needles; (3) arterial blood collection, which is mostly used to test arterial blood gas indicators in critical emergencies, is less used, and is mostly collected using a special syringe for arterial blood collection. Venous blood collection is also a common blood collection method. The structure of the venous blood collection needle includes a puncture needle, the tail end of the puncture needle is connected to a catheter, the other end of the catheter is connected to a needle holder, and the outer end of the needle holder is connected to the blood collection needle. When in use, venous puncture is performed through the puncture needle. After the puncture is successful, the blood collection needle is inserted into the vacuum blood collection tube. Under the action of negative pressure, blood is drawn into the blood collection tube through the puncture needle, catheter and blood collection needle; this process is repeated to achieve the collection of multiple blood samples. After the blood collection is completed, the venous puncture needle is pulled out and local bleeding is stopped.

In existing medical equipment, infusion and blood collection usually adopt a single operation method, that is, puncture with a needle; if the patient needs multiple punctures when testing or infusion, the risk of needle stick injury will increase, causing skin damage and bleeding or spreading blood diseases.

Therefore, it is necessary to provide a safe venous blood sampling device that can be used for infusion to solve the above technical problems.

Utility Model Content

The utility model aims to provide a safe venous blood sampling device that can be used for infusion, which can reduce the risk of needle stick injuries through the arrangement of a threaded head, a first thread groove, a second thread groove, a first connecting cap and a second connecting cap.

The above technical purpose of the utility model is achieved through the following technical solutions: a safe venous blood sampling device that can be used for infusion, comprising a safety indwelling needle, a wing is provided on the side wall of the safety indwelling needle, a first hose is connected to the side of the safety indwelling needle away from the wing, an adjustment clip is sleeved on the outer wall of the first hose, the other end of the first hose is fixedly connected to a first connecting cap, a second thread groove is provided inside the first connecting cap, a first thread groove is provided at the end of the first connecting cap away from the first hose, a threaded head is connected to the internal thread of the first thread groove, a syringe is provided at the bottom of the safety indwelling needle, and the syringe is adapted to the safety indwelling needle.

By adopting the above technical scheme, through the arrangement of the adjusting clamp, the threaded head, the first threaded groove, the second threaded groove, the first connecting cap and the second connecting cap, when blood collection is needed, blood is collected from the patient through the action of the blood collection needle and the needle holder. When the blood collection is completed, the threaded head is removed from the first threaded groove, and then the positive pressure connector is connected to the first connecting cap to perform infusion on the patient, thereby reducing the risk of needlestick injuries, avoiding skin damage and bleeding or spreading blood diseases, and the first hose can be clamped or unblocked by the adjusting clamp throughout the whole process.

The utility model is further configured as follows: a side of the threaded head away from the first connecting cap is fixedly connected to a second connecting cap, and an end of the second connecting cap away from the threaded head is fixedly connected to a second hose.

By adopting the above technical solution, it is convenient to draw blood from the patient, and after the blood is drawn, the second hose and the rear half thereof are disconnected.

The utility model is further configured as follows: a third connecting cap, a second needle seat, a tube plug puncture needle and a small needle holder are provided at one end of the second hose away from the second connecting cap, and the third connecting cap is fixedly connected to the end of the second hose away from the second connecting cap.

By adopting the above technical solution, it is convenient to draw blood from patients, and after the blood is drawn, it is convenient to connect the positive pressure connector to infuse the patient.

The utility model is further configured as follows: the second needle seat is clamped with the third connecting cap, and the tube plug puncture needle is installed on the side wall of the second needle seat.

By adopting the above technical solution, in combination with a small needle holder and a third connecting cap, blood sampling from patients can be facilitated.

The utility model is further configured as follows: one end of the tube plug puncture needle is located inside the small needle holder, and the second needle seat is threadedly connected to the small needle holder.

By adopting the above technical solution, in combination with a small needle holder, a third connecting cap, a second needle seat and a tube plug puncture needle, blood sampling from patients is facilitated.

In summary, the utility model has the following beneficial effects: through the arrangement of the adjusting clamp, the threaded head, the first threaded groove, the second threaded groove, the first connecting cap and the second connecting cap, when blood collection is needed, blood is collected from the patient through the action of the safety indwelling needle and the small needle holder, and when the blood collection is completed, the threaded head is removed from the first threaded groove and the positive pressure connector is connected to the first connecting cap to give the patient an infusion, thereby reducing the risk of needlestick injuries and avoiding skin damage and bleeding or the spread of blood diseases; the first hose can be clamped or unblocked through the adjusting clamp during the whole process.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a three-dimensional structure of the utility model;

FIG2 is a schematic diagram of the three-dimensional structure of the syringe and the safety indwelling needle of the utility model;

FIG3 is a schematic diagram of a partial three-dimensional structure of the first connecting cap and the second connecting cap of the utility model;

FIG4 is a schematic diagram of the three-dimensional structure of the small needle holder and the tube plug puncture needle of the utility model;

FIG5 is a schematic diagram of the three-dimensional structure of the first connecting cap of the utility model.

In the figure: 1. safety indwelling needle; 2. syringe; 3. wing; 4. first hose; 5. first connecting cap; 6. second connecting cap; 7. threaded head; 8. first thread groove; 9. second thread groove; 10. second hose; 11. third connecting cap; 12. second needle seat; 13. tube plug puncture needle; 14. small needle holder; 15. adjustment clip.

DETAILED DESCRIPTION

The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to Figures 1 to 5. In the embodiment of the utility model, a safe venous blood sampling device that can be used for infusion includes a safety indwelling needle 1, a side wall of the safety indwelling needle 1 is provided with a wing 3, a side of the safety indwelling needle 1 away from the wing 3 is connected to a first hose 4, an outer wall of the first hose 4 is sleeved with an adjustment clamp 15, the other end of the first hose 4 is fixedly connected to a first connecting cap 5, a second thread groove 9 is provided inside the first connecting cap 5, a first thread groove 8 is provided at the end of the first connecting cap 5 away from the first hose 4, a threaded head 7 is connected to the internal thread of the first thread groove 8, and a syringe 2 is provided at the bottom of the safety indwelling needle 1, and the syringe 2 is adapted to the safety indwelling needle 1; when in use, the medical staff takes the entire device to perform an injection on the patient, then removes the syringe 2, and then uses the push wing 3 to insert the safety indwelling needle 1 into the patient's body, and then fixes the safety indwelling needle 1 and the wing 3 respectively by sticking adhesive tape; if blood is to be drawn, a small needle holder 14 and a safety indwelling needle 2 are used. Under the joint action of the needle 1, blood is drawn from the patient. After the blood drawing is completed, the first hose 4 is clamped and closed by the adjusting clamp 15 to prevent blood from flowing out. Then the second connecting cap 6 is rotated, thereby driving the second connecting cap 6 and the threaded head 7 to separate the first connecting cap 5 and the threaded head 7, and then the positive pressure connector is connected to the first connecting cap 5. The first hose 4 is reset by the adjusting clamp 15 again, and then the patient is infused, so that the risk of needle stick injury can be reduced. Through the arrangement of the adjusting clamp 15, the threaded head 7, the first thread groove 8, the second thread groove 9, the first connecting cap 5 and the second connecting cap 6, when blood drawing is required, blood is drawn from the patient by the action of the safety indwelling needle 1 and the small needle holder 14. At the end of blood drawing, the threaded head 7 is removed from the first thread groove 8 at the same time, and then the positive pressure connector is connected to the first connecting cap 5 to infuse the patient, reducing the risk of needle stick injury and avoiding skin damage and bleeding or spreading blood diseases. The first hose 4 can be clamped or unblocked by the adjusting clamp 15 throughout the process.

In this embodiment, preferably, the side of the threaded head 7 away from the first connecting cap 5 is fixedly connected to the second connecting cap 6, and the end of the second connecting cap 6 away from the threaded head 7 is fixedly connected to the second hose 10; it is convenient to draw blood from the patient, and the second hose 10 and its rear half are disconnected after blood collection.

In this embodiment, preferably, the end of the second hose 10 away from the second connecting cap 6 is provided with a third connecting cap 11, a second needle seat 12, a tube plug puncture needle 13 and a small needle holder 14, and the third connecting cap 11 is fixedly connected to the end of the second hose 10 away from the second connecting cap 6, so that it is convenient to draw blood from the patient, and after the blood is drawn, it is convenient to connect the positive pressure connector for infusion to the patient.

In this embodiment, preferably, the second needle seat 12 is snap-fitted with the third connecting cap 11, and the tube plug puncture needle 13 is installed on the side wall of the second needle seat 12; in combination with the small needle holder 14 and the third connecting cap 11, blood sampling from patients is convenient.

In this embodiment, preferably, one end of the tube plug puncture needle 13 is located inside the small needle holder 14, and the second needle seat 12 is threadedly connected to the small needle holder 14; the small needle holder 14, the third connecting cap 11, the second needle seat 12 and the tube plug puncture needle 13 are combined to facilitate blood sampling from patients.

Working principle: When in use, the medical staff takes the entire device to perform an injection on the patient, then removes the syringe 2, and then uses the push wing 3 to insert the safety indwelling needle 1 into the patient's body, and then fixes the safety indwelling needle 1 and the wing 3 respectively by sticking adhesive tape; if blood collection is to be performed, the patient's blood is collected under the joint action of the small needle holder 14 and the safety indwelling needle 1, and after the blood collection is completed; use the adjustment clamp 15 to clamp the first hose 4 to prevent blood from flowing out; then rotate the second connecting cap 6, and then drive the second connecting cap 6 and the threaded head 7 to separate the first connecting cap 5 and the threaded head 7, and then connect the positive pressure connector to the first connecting cap 5, and use the adjustment clamp 15 again to reset the first hose 4, and then give the patient an infusion, which can reduce the risk of needlestick injuries.

The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims (5)

1. A safe venous blood sampling device for transfusion, which comprises a safe indwelling needle (1), and is characterized in that: the lateral wall of needle (1) is kept somewhere safely is provided with fin (3), one side intercommunication that fin (3) was kept away from to needle (1) is kept somewhere safely is provided with first hose (4), first hose (4) outer wall cover is equipped with regulation clamp (15), the other end fixed intercommunication of first hose (4) has first connecting cap (5), second screw thread groove (9) have been seted up to the inside of first connecting cap (5), first screw thread groove (8) have been seted up to the one end that first hose (4) was kept away from to first connecting cap (5), the inside threaded connection of first screw thread groove (8) has screw thread head (7), the bottom of needle (1) is kept somewhere safely is provided with cylinder (2), cylinder (2) and needle (1) looks adaptation are kept somewhere to the safety.

2. A safety intravenous blood collection device for infusion of claim 1 wherein: one side of the thread head (7) far away from the first connecting cap (5) is fixedly communicated with a second connecting cap (6), and one end of the second connecting cap (6) far away from the thread head (7) is fixedly communicated with a second hose (10).

3. A safety intravenous blood collection device for infusion of claim 2 wherein: the one end that second hose (10) kept away from second connecting cap (6) is provided with third connecting cap (11), second needle file (12), stopcock pjncture needle (13) and small-size needle holder (14), the one end that second connecting cap (6) was kept away from to third connecting cap (11) and second hose (10) is fixed to be linked together.

4. A safety intravenous blood collection device for use in infusion of claim 3 wherein: the second needle seat (12) is clamped with the third connecting cap (11), and the pipe plug puncture needle (13) is arranged on the side wall of the second needle seat (12).

5. A safety intravenous blood collection device for use in infusion of claim 3 wherein: one end of the tube plug puncture needle (13) is positioned in the small needle holder (14), and the second needle seat (12) is in threaded connection with the small needle holder (14).