Arterial blood sample collector capable of preventing blood pollution

Abstract

The utility model discloses an arterial blood sample collector capable of preventing blood pollution, relates to the technical field of medical instruments, and solves the problem that in the prior art, a blood sample cannot be sealed in time, so that the accuracy of a detection result is influenced. Comprising a sample storage device, a blood sampling needle head, a conical head sealing piece and a connecting assembly, the sample storage device comprises a needle cylinder, a piston and a core rod, the piston and the core rod are both arranged in the needle cylinder, and the piston is arranged at the end of the core rod; the end part of the needle cylinder is connected with a locking joint, the locking joint is internally in threaded connection with a blood sampling needle head, the blood sampling needle head is connected with the needle cylinder in a sleeving manner, and the blood sampling needle head is connected with a needle head sleeve in a sleeving manner; the locking connector is connected with the conical head sealing piece through the connecting assembly, and the conical head sealing piece can be connected between the locking connector and the needle cylinder in a sleeved mode. The device has the beneficial effects that a blood sample can be sealed in time, and pollution is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an arterial blood sample collector that prevents blood contamination. Background Technology

[0002] Arterial blood sampling, also known as arterial blood gas analysis, is a reliable indicator for determining whether the body has acid-base imbalance, as well as hypoxia and the degree of hypoxia. It is also one of the important indicators for rescuing critically ill patients and monitoring during surgery. Accurate arterial blood sample test results are crucial for disease diagnosis and treatment planning.

[0003] During the process of removing the needle connection cone seal after blood sample collection, the cone seal is small and can easily fall off or roll during unpacking or use, causing contamination of the parts. This prevents the blood sample from being sealed in time, causing inconvenience to medical staff. Furthermore, the blood sample may be exposed to air for a long time due to the lack of timely sealing, thus contaminating the blood sample and affecting the accuracy of the test results.

[0004] Therefore, this invention proposes an arterial blood sample collector that prevents blood contamination, in order to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an arterial blood sample collector that prevents blood contamination, thereby solving the problem in the prior art where blood samples cannot be sealed in a timely manner, affecting the accuracy of test results.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A blood-contamination-resistant arterial blood sample collector includes a sample reservoir, a blood collection needle, a conical seal, and a connecting assembly. The sample reservoir includes a syringe barrel, a piston, and a core rod, both of which are disposed within the syringe barrel. The piston is located at the end of the core rod. A locking connector is connected to the end of the syringe barrel, and the blood collection needle is internally threaded onto the locking connector. The blood collection needle is sleeved onto the syringe barrel, and a needle sleeve is fitted onto the blood collection needle. The locking connector is connected to the conical seal via the connecting assembly, and the conical seal can be sleeved between the locking connector and the syringe barrel.

[0008] Furthermore, the conical seal includes a conical sealing part and a handheld part, the conical sealing part is fixedly connected to the handheld part, a plug is connected to the inner center of the conical sealing part, the plug is sleeved inside the syringe, and a solid heparin layer is provided on the plug.

[0009] Furthermore, a sealing ring is provided on the outer wall of the conical sealing part, and a sealing gasket is connected to the bottom of the inner side of the conical sealing part.

[0010] Furthermore, a sealing foil is connected to the port of the conical sealing part, and a pull lug is provided on the sealing foil.

[0011] Furthermore, the handheld part has an annular groove corresponding to the locking connector.

[0012] Furthermore, the outer walls of the syringe, needle sheath, and hand grip are all provided with anti-slip textures.

[0013] Furthermore, the connecting assembly includes a collar and a connecting wire. The collar is rotatably connected to the outer periphery of the locking joint, and an elastic connecting wire is fixedly connected to the collar. The elastic connecting wire is fixedly connected to the conical seal.

[0014] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The connecting component of this utility model connects the cone-shaped seal to the locking connector, which can be used in time when sealing operation is required, ensuring that blood samples can be sealed in a timely manner.

[0016] 2. This utility model can quickly fit the conical sealing part between the locking connector and the syringe after blood collection. The sealing ring on the outer wall of the conical sealing part fits tightly with the locking connector, and the sealing gasket at the bottom of the inner side contacts the end of the syringe, forming a double sealing structure. This quickly prevents external contaminants from entering the syringe, avoids contamination of the blood sample, and ensures the accuracy of the test results.

[0017] 3. The sealing foil of this utility model can prevent the inside of the conical sealing part from being contaminated, and the pull ear makes it easy for medical staff to quickly tear off the sealing foil, thus improving the convenience of operation.

[0018] 4. The plug head of this utility model is provided with a solid heparin layer. When the conical sealing part is inserted into the syringe, it will come into contact with the collected blood and dissolve rapidly, exerting an anticoagulant effect, preventing blood coagulation, and making the test results more reliable.

[0019] 5. The anti-slip texture on the outer wall of the syringe, needle cap, and hand handle of this utility model increases the friction when medical staff hold it, making the operation more stable and improving the safety of the operation.

[0020] 6. The annular groove on the handheld part of this utility model corresponding to the locking joint can further tighten the conical seal and the locking joint, and the end of the locking joint can be engaged in the annular groove. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the main view of this utility model;

[0025] In the diagram: 1. Syringe; 2. Piston; 3. Core rod; 4. Blood collection needle; 5. Needle cap; 6. Locking connector; 7. Conical sealing part; 8. Handhold part; 9. Sealing ring; 10. Plug head; 11. Solid heparin layer; 12. Sealing gasket; 13. Sealing foil; 14. Pulling lug; 15. Annular groove; 16. Collar; 17. Flexible connecting wire. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] like Figure 1-4 As shown, an arterial blood sample collector for preventing blood contamination includes a sample reservoir, a blood collection needle 4, a conical seal, and a connecting assembly. The sample reservoir includes a syringe barrel 1, a piston 2, and a core rod 3. Both the piston 2 and the core rod 3 are disposed inside the syringe barrel 1, with the piston 2 located at the end of the core rod 3. A locking connector 6 is connected to the end of the syringe barrel 1, and the blood collection needle 4 is internally threaded onto the locking connector 6. The blood collection needle 4 is sleeved and connected to the syringe barrel 1, and a needle sleeve 5 is sleeved and connected to the blood collection needle 4. The locking connector 6 is connected to the conical seal through the connecting assembly, and the conical seal can be sleeved and connected between the locking connector 6 and the syringe barrel 1.

[0029] Furthermore, the conical seal includes a conical sealing part 7 and a handle part 8. The conical sealing part 7 is fixedly connected to the handle part 8. A sealing ring 9 is provided on the outer wall of the conical sealing part 7, and a plug head 10 is connected to the middle of the inner side of the conical sealing part 7. The plug head 10 is sleeved inside the syringe 1, and a solid heparin layer 11 is provided on the plug head 10. A sealing gasket 12 is connected to the bottom of the inner side of the conical sealing part 7. A sealing foil 13 is connected to the port of the conical sealing part 7, and a pull lug 14 is provided on the sealing foil 13. The handle part 8 has an annular groove 15 corresponding to the locking connector 6.

[0030] Furthermore, anti-slip textures are provided on the outer walls of the syringe 1, needle cap 5, and handle 8.

[0031] Furthermore, the connecting assembly includes a collar 16 and a connecting wire. The collar 16 is rotatably connected to the outer periphery of the locking connector 6, and an elastic connecting wire 17 is fixedly connected to the collar 16. The elastic connecting wire 17 is fixedly connected to the cone-shaped seal.

[0032] The working process of this utility model is as follows:

[0033] First, medical staff can hold the blood collection device stably through the anti-slip texture. Then, they remove the needle cap 5 to expose the blood collection needle 4. The medical staff then insert the blood collection needle 4 into the patient's artery by holding the blood collection device and pushing the core rod 3 to move the piston 2 inside the syringe 1. Arterial blood is collected using the negative pressure of the syringe 1. During the collection process, the anti-slip texture ensures stable operation and avoids blood collection errors due to slipping.

[0034] After blood collection, medical staff hold the handle 8 and pull the ear 14 to tear off the sealing foil 13. Then, the conical seal is aligned with the position between the locking connector 6 and the syringe 1, and the conical seal 7 is fitted between the locking connector 6 and the syringe 1. At the same time, the sealing ring 9 on the outer wall of the conical seal 7 fits tightly with the locking connector 6, achieving an initial seal. As the conical seal 7 is inserted deeper, the plug 10 is gradually inserted into the syringe 1. The solid heparin layer 11 on the plug 10 comes into contact with the collected blood. The solid heparin layer 11 dissolves rapidly, exerting an anticoagulant effect and preventing blood coagulation from affecting the test results. Then, the sealing gasket 12 on the inner bottom of the conical seal 7 makes tight contact with the end of the syringe 1, further enhancing the sealing effect. The handle 8 has an annular groove 15 corresponding to the locking connector 6. The end of the locking connector 6 is engaged in the annular groove 15, effectively preventing blood contamination and sample leakage.

[0035] The collar 16 in the connecting assembly can rotate on the outer periphery of the locking joint 6, which facilitates the installation and position adjustment of the cone seal. The elastic connecting line 17 connects the cone seal to the locking joint 6, preventing the cone seal from being lost.

Claims

1. A blood-contamination-resistant arterial blood sample collector, comprising a sample reservoir, a blood collection needle (4), a conical seal, and a connecting assembly, characterized in that, The sample reservoir includes a syringe (1), a piston (2), and a core rod (3). The piston (2) and the core rod (3) are both disposed inside the syringe (1). The piston (2) is disposed at the end of the core rod (3). A locking connector (6) is connected to the end of the syringe (1). A blood collection needle (4) is threadedly connected to the locking connector (6). The blood collection needle (4) is sleeved and connected to the syringe (1). A needle sleeve (5) is sleeved and connected to the blood collection needle (4). The locking connector (6) is connected to the conical seal through the connecting assembly. The conical seal can be sleeved and connected between the locking connector (6) and the syringe (1).

2. The arterial blood sample collector for preventing blood contamination according to claim 1, characterized in that, The conical seal includes a conical sealing part (7) and a handheld part (8). The conical sealing part (7) is fixedly connected to the handheld part (8). A plug (10) is connected to the inner middle of the conical sealing part (7). The plug (10) is sleeved inside the syringe (1). A solid heparin layer (11) is provided on the plug (10).

3. The arterial blood sample collector for preventing blood contamination according to claim 2, characterized in that, A sealing ring (9) is provided on the outer wall of the conical sealing part (7), and a sealing gasket (12) is connected to the bottom of the inner side of the conical sealing part (7).

4. The arterial blood sample collector for preventing blood contamination according to claim 3, characterized in that, A sealing foil (13) is connected to the port of the conical sealing part (7), and a pull ear (14) is provided on the sealing foil (13).

5. The arterial blood sample collector for preventing blood contamination according to claim 4, characterized in that, The handheld part (8) has an annular groove (15) corresponding to the locking connector (6).

6. The arterial blood sample collector for preventing blood contamination according to claim 5, characterized in that, The outer walls of the syringe (1), needle sheath (5) and handheld part (8) are all provided with anti-slip textures.

7. The arterial blood sample collector for preventing blood contamination according to claim 1, characterized in that, The connecting assembly includes a collar (16) and a connecting wire. The collar (16) is rotatably connected to the outer periphery of the locking joint (6). An elastic connecting wire (17) is fixedly connected to the collar (16) and is fixedly connected to the cone-shaped seal.

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