Three-way remaining needle

Abstract

The utility model discloses a three-way indwelling needle, relates to the technical field of indwelling needles, solves the problems of low safety and low practicability of an existing device, and adopts the following scheme that a puncture needle is assembled in an indwelling needle sleeve, and the three-way indwelling needle is provided with the puncture needle, a needle cap and a hemostat, so that the indwelling needle can be inserted into the indwelling needle sleeve. After the puncture needle and the indwelling needle sleeve are inserted into a blood vessel, the puncture needle is drawn out through the needle cap, the situation that the blood vessel of a patient is damaged due to the fact that the needle head is left in the blood vessel is prevented, the hemostat prevents blood from flowing out of the right side of the indwelling needle sleeve base, and safety is high; the input end of the positive pressure connector is in butt joint with the conical connector, then the drainage hose is connected with the collection tube, the flow stopping clamp is opened, blood automatically flows into the collection tube through the positive pressure connector, blood collection is completed, the conical connector is in butt joint with the infusion connector after blood collection is completed, infusion can be conducted, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needles, in particular to a three-way indwelling needle. Background Art

[0002] Indwelling catheters are now widely used in clinical medicine. The use of indwelling catheters can reduce the pain caused by repeated intravenous punctures, relieve patients' anxiety, facilitate clinical medication, and rescue medication for emergency and critically ill patients. It can effectively reduce the workload of nurses and reduce patients' pain.

[0003] After searching, the application with patent application number CN212214300U discloses a three-way indwelling needle fixing device, including an indwelling needle, on which an infusion tee is arranged, and also includes an elastic cylindrical fixing sleeve, the fixing sleeve includes a transparent elastic material area and a breathable textile fabric area, the fixing sleeve can be put on the hand so that the indwelling needle is placed in the transparent elastic material area, so that the condition of the indwelling needle can be observed from the outside, and a pressure sensor is detachably installed on one end of the sleeve of the infusion tee, and the pressure sensor is used to detect the pressure and flow rate in the indwelling needle.

[0004] However, due to the setting of the needle and the transparent tee, the transparent tee is set at the rear end of the needle, so after the needle and the indwelling needle are inserted into the blood vessel, the indwelling needle is directly fixed, and the needle also remains in the indwelling needle. When the patient moves, the needle is easy to touch the blood vessel and cause pain and injury to the patient, and the safety is low. At the same time, the setting of the infusion tee causes the device to only have an infusion effect, and cannot directly draw blood from the patient through the indwelling needle, and the practicality is low.

[0005] Therefore, we proposed a three-way indwelling needle. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a three-way indwelling needle, which solves the problems of low safety and low practicality of the prior device.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a three-way indwelling needle, comprising an indwelling needle cannula, and an indwelling needle cannula seat is fixedly installed on the left side of the indwelling needle cannula;

[0008] The interior of the indwelling needle cannula is equipped with a puncture needle, the right side of the indwelling needle cannula seat is equipped with a needle cap fixedly connected to the puncture needle, the interior of the indwelling needle cannula seat is equipped with a hemostat, a handle is fixedly installed on the outer wall of the needle cap, a hose is installed on the outer wall of the indwelling needle cannula seat, an infusion tee is fixedly installed on the output end of the hose, and a conical joint is fixedly installed on the right side of the infusion tee;

[0009] A positive pressure joint of matching specifications is installed on the right side of the conical joint, a drainage hose is fixedly installed on the output end of the positive pressure joint, a drainage needle is fixedly installed on the right side of the drainage hose, and a collection tube of matching specifications is installed on the outer wall of the drainage needle.

[0010] Preferably, an indwelling needle sheath is mounted on the outer wall of the indwelling needle cannula, so that the indwelling needle cannula can be protected to prevent bacterial infection.

[0011] Preferably, a hose connector is fixedly mounted on the outer wall of the indwelling needle cannula seat, and the hose is matched with the hose connector, so that when the hose is damaged, the hose can be easily disassembled and replaced.

[0012] Preferably, a stop clamp of matching specifications is fixedly mounted on the outer wall of the hose, so that the flow of the hose can be controlled.

[0013] Preferably, a connected heparin cap is fixedly mounted on the outer wall of the infusion tee, so that the use time of the indwelling needle can be extended and infection and local blood coagulation can be prevented.

[0014] Preferably, the hose connector, the conical connector and the indwelling needle sleeve seat are equipped with protective caps of matching specifications, so that each connector can be sealed and protected to reduce bacterial infection.

[0015] 1. This three-way indwelling needle, through the arrangement of the puncture needle, the needle cap and the indwelling needle cannula, inserts the puncture needle and the indwelling needle cannula into the blood vessel, and then withdraws the puncture needle through the needle cap to prevent the needle from remaining in the blood vessel and causing damage to the patient's blood vessel. The hemostat can prevent blood from flowing out from the right side of the indwelling needle cannula seat, and is also convenient for fixing the indwelling needle and the indwelling needle cannula seat, with high safety;

[0016] 2. At the same time, through the setting of the conical joint, positive pressure joint, drainage hose and collection tube, the input end of the positive pressure joint is connected to the conical joint, and then the drainage hose is connected to the collection tube. The stop clamp is opened, and the blood automatically flows into the collection tube through the positive pressure joint to complete the blood collection. The positive pressure joint can prevent the backflow of blood. After the blood collection is completed, the conical joint is connected to the infusion joint to carry out infusion, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural schematic diagram of the indwelling needle cannula seat of the utility model;

[0019] Figure 3 This is a structural schematic diagram of the infusion tee of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the positive pressure joint of the utility model.

[0021] In the figure: 1. Indwelling needle cannula; 2. Indwelling needle cannula seat; 3. Indwelling needle sheath; 4. Puncture needle; 5. Needle cap; 6. Handle; 7. Hemostat; 8. Hose connector; 9. Hose; 10. Infusion tee; 11. Stop clamp; 12. Conical connector; 13. Heparin cap; 14. Positive pressure connector; 15. Drainage hose; 16. Collection tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] like Figure 1-4 As shown: the interior of the indwelling needle cannula 1 is equipped with a puncture needle 4, the right side of the indwelling needle cannula seat 2 is equipped with a needle cap 5 fixedly connected to the puncture needle 4, the interior of the indwelling needle cannula seat 2 is equipped with a hemostat 7, a handle 6 is fixedly installed on the outer wall of the needle cap 5, a hose 9 is installed on the outer wall of the indwelling needle cannula seat 2, an infusion tee 10 is fixedly installed on the output end of the hose 9, and a conical joint 12 is fixedly installed on the right side of the infusion tee 10. Through the arrangement of the puncture needle 4, the needle cap 5, and the hemostat 7, after the puncture needle 4 and the indwelling needle cannula 1 are inserted into the blood vessel, the puncture needle 4 is then withdrawn through the needle cap 5 to prevent the needle from remaining in the blood vessel and causing damage to the patient's blood vessel. The hemostat 7 can prevent blood from flowing out from the right side of the indwelling needle cannula seat 2, and is also convenient for fixing the indwelling needle and the indwelling needle cannula seat 2, with high safety.

[0025] Embodiment 2:

[0026] like Figure 2-4As shown: the right side of the conical joint 12 is equipped with a positive pressure joint 14 of matching specifications, a drainage hose 15 is fixedly installed on the output end of the positive pressure joint 14, a drainage needle is fixedly installed on the right side of the drainage hose 15, and a collecting tube 16 of matching specifications is installed on the outer wall of the drainage needle. Through the arrangement of the conical joint 12, the positive pressure joint 14, the drainage hose 15 and the collecting tube 16, the input end of the positive pressure joint 14 is connected to the conical joint 12, and then the drainage hose 15 is connected to the collecting tube 16, the stop clamp 11 is opened, and the blood automatically flows into the collecting tube 16 through the positive pressure joint 14 to complete the blood collection. The positive pressure joint 14 can prevent the backflow of blood. After the blood collection is completed, the conical joint 12 is connected to the infusion joint to carry out infusion, which is highly practical.

[0027] Embodiment 3:

[0028] like Figure 2-3 As shown: a connected heparin cap 13 is fixedly installed on the outer wall of the infusion tee 10, so that the use time of the indwelling needle can be extended and infection and local blood coagulation can be prevented.

[0029] The working principle and use process of the utility model are as follows: when the device is needed to work, first insert the puncture needle 4 and the indwelling needle cannula 1 into the blood vessel, and then withdraw the puncture needle 4 through the needle cap 5 to prevent the needle from remaining in the blood vessel and causing damage to the patient's blood vessel. The hemostat 7 can prevent blood from flowing out from the right side of the indwelling needle cannula seat 2, and it is also convenient to fix the indwelling needle and the indwelling needle cannula seat 2. Then, the input end of the positive pressure joint 14 is connected to the conical joint 12, and then the drainage hose 15 is connected to the collection tube 16. The flow stop clamp 11 is opened, and the blood automatically flows into the collection tube 16 through the positive pressure joint 14 to complete the blood collection. The positive pressure joint 14 can prevent the backflow of blood. After the blood collection is completed, the conical joint 12 is connected to the infusion joint to carry out infusion, which is highly practical.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A three-way indwelling needle, comprising an indwelling needle cannula (1), wherein an indwelling needle cannula seat (2) is fixedly mounted on the left side of the indwelling needle cannula (1); Features: The interior of the indwelling needle cannula (1) is equipped with a puncture needle (4); the right side of the indwelling needle cannula seat (2) is equipped with a needle cap (5) fixedly connected to the puncture needle (4); the interior of the indwelling needle cannula seat (2) is equipped with a hemostat (7); the outer wall of the needle cap (5) is fixedly mounted with a handle (6); the outer wall of the indwelling needle cannula seat (2) is equipped with a hose (9); the output end of the hose (9) is fixedly mounted with an infusion tee (10); and the right side of the infusion tee (10) is fixedly mounted with a conical joint (12); A positive pressure joint (14) of matching specifications is mounted on the right side of the conical joint (12); a drainage hose (15) is fixedly mounted on the output end of the positive pressure joint (14); a drainage needle is fixedly mounted on the right side of the drainage hose (15); and a collection tube (16) of matching specifications is mounted on the outer wall of the drainage needle.

2. A three-way indwelling needle according to claim 1, characterized in that: An indwelling needle sheath (3) is mounted on the outer wall of the indwelling needle cannula (1).

3. A three-way indwelling needle according to claim 1, characterized in that: A hose connector (8) is fixedly mounted on the outer wall of the indwelling needle cannula seat (2), and the hose (9) is adapted to the hose connector (8).

4. A three-way indwelling needle according to claim 1, characterized in that: A flow-stop clamp (11) of matching specifications is fixedly mounted on the outer wall of the hose (9).

5. The three-way indwelling needle according to claim 1, characterized in that: A connected heparin cap (13) is fixedly mounted on the outer wall of the infusion tee (10).

6. A three-way indwelling needle according to claim 3, characterized in that: The hose connector (8), the conical connector (12) and the indwelling needle sleeve seat (2) are equipped with protective caps with matching specifications.

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