Dual-channel anti-acupuncture arterial blood sample collector

Abstract

The utility model discloses a dual-channel anti-acupuncture arterial blood sample collector, relates to the technical field of medical instruments, and solves the problems in the prior art that the risk of local infection is increased and the working efficiency is reduced as multiple times of puncture are required to extract a blood sample. Comprising a puncture needle tube and a double-channel blood guide valve, the double-channel blood guide valve is arranged at the rear end of the puncture needle tube and comprises a valve body and a rotary core, a first blood guide tube and a second blood guide tube are perpendicularly arranged in the valve body in a crossed mode, and the front end of the first blood guide tube and the front end of the second blood guide tube are both communicated with an inner cavity of the puncture needle tube. The rear ends respectively correspond to the first valve port and the second valve port; the first valve port and the second valve port are respectively connected with a sample storage device and a heparin cap; the rotary core is rotationally connected into the valve body, and a blood guide groove is formed in the rotary core. The puncture needle has the advantages that passages can be switched by rotating the rotary core, sample collection is achieved after one-time puncture, working efficiency is improved, and infection risks are reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dual-channel anti-needle-puncture arterial blood sample collector. Background Technology

[0002] In the medical field, arterial blood sampling, also known as arterial blood gas analysis, is a testing method that is a reliable indicator for determining whether there is an acid-base imbalance and the degree of hypoxia in the body. It is also one of the important indicators for rescuing critically ill patients and monitoring during surgery.

[0003] In actual medical practice, to meet the needs of rescuing critically ill patients and monitoring during surgery, it is often necessary to perform blood gas analysis for different items at the same time, which leads to the need to draw blood samples multiple times.

[0004] However, the existing methods of arterial blood sampling have obvious drawbacks. Each blood sample needs to be drawn by a puncture, and patients have to endure the pain of punctures multiple times, which can have adverse effects on patients. In addition, multiple punctures can increase the risk of local infection. At the same time, for medical staff, multiple punctures increase the workload and reduce work efficiency.

[0005] Therefore, this invention proposes a dual-path anti-needle-puncture arterial blood sample collector to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a dual-path anti-needle-puncture arterial blood sample collector to solve the problem in the prior art that multiple punctures are required to extract blood samples, which not only increases the risk of local infection but also reduces work efficiency.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A dual-path anti-needle-puncture arterial blood sample collector includes a puncture needle and a dual-path blood guide valve. The dual-path blood guide valve is located at the rear end of the puncture needle and includes a valve body and a rotating core. A first guide vessel and a second guide vessel are vertically and crosswise arranged within the valve body. The first guide vessel is a straight path, and the second guide vessel is an L-shaped bend. The front ends of both the first and second guide vessels communicate with the inner lumen of the puncture needle, and their rear ends correspond to the first valve port and the second valve port, respectively. A sample reservoir and a heparin cap are respectively connected to the first valve port and the second valve port.

[0009] The rotating core is rotatably connected at the intersection of the first guide vessel and the second guide vessel. The rotating core is threadedly connected to the valve body. The rotating core is a cylindrical rotating body. The outer periphery of the rotating core is provided with a limiting protrusion. The valve body is provided with a corresponding groove. The rotating core is provided with a blood guiding groove. The blood guiding groove can switch between connecting the first guide vessel and the second guide vessel by rotating the rotating core.

[0010] Furthermore, a rotation mark is provided on the upper end of the swivel core, and a passage mark is provided on the outer side of the valve body.

[0011] Furthermore, the top of the rotating core is circumferentially connected with multiple rotating ears, each of which is provided with anti-slip texture.

[0012] Furthermore, an anti-puncture sleeve is provided on the outside of the puncture needle tube, and the anti-puncture sleeve is rotatably connected to the bottom of the puncture needle tube.

[0013] Furthermore, a limiting groove is provided inside the anti-needle puncture sleeve, and a limiting block is provided on the outside of the puncture needle tube corresponding to the limiting groove. The limiting block is made of rubber.

[0014] Furthermore, both the first valve port and the second valve port are connected to Luer connectors, and the Luer connectors are detachably connected to the sample reservoir and the heparin cap.

[0015] Furthermore, the puncture needle is made of medical-grade stainless steel, and the dual-channel blood delivery valve is made of medical-grade transparent plastic.

[0016] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, through a single puncture combined with a dual-pathway design, allows medical staff to switch pathways by rotating the core, enabling sample collection and anticoagulation treatment after a single puncture, significantly shortening blood collection time, improving work efficiency, reducing damage, and lowering the risk of infection.

[0018] 2. The rotating core and valve body of this utility model are connected by threads, with limiting protrusions and grooves to avoid confusion in the passage due to improper rotation angle; the rotating ear at the top of the rotating core is provided with anti-slip texture, which makes it easy for medical staff to rotate; and the rotation mark at the top of the rotating core and the passage mark on the outside of the valve body can intuitively display the current passage status, reducing the rate of operational errors; the detachable connection of the Luer connector facilitates quick replacement of the sample container and heparin cap, adapts to different specifications of consumables, and improves the flexibility of use.

[0019] 3. The dual-channel blood-conducting valve of this utility model is made of medical transparent plastic material, which allows medical staff to directly observe the blood flow, detect problems in time, and ensure the smooth blood collection process; the puncture needle is made of medical stainless steel material, which can ensure the accuracy and stability of puncture. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the working state 1 of this utility model;

[0021] Figure 2 for Figure 1 A magnified view of part A;

[0022] Figure 3 This is a schematic diagram of the second working state of this utility model;

[0023] Figure 4 This is a schematic diagram of the working state 3 of this utility model;

[0024] Figure 5 This is a schematic diagram of the puncture needle of this utility model;

[0025] In the diagram: 1. Puncture needle tube; 2. Valve body; 3. Rotary core; 4. First valve port; 5. Second valve port; 6. Sample container; 7. Heparin cap; 8. Luer connector; 9. Rotation mark; 10. Access mark; 11. Rotating lug; 12. Anti-puncture sleeve; 13. Limiting groove; 14. Limiting block. 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 1-5As shown, a dual-path anti-needle-puncture arterial blood sample collector includes a puncture needle tube 1 and a dual-path blood guide valve. The puncture needle tube 1 is made of medical-grade stainless steel, and the dual-path blood guide valve is made of medical-grade transparent plastic. The dual-path blood guide valve is located at the rear end of the puncture needle tube 1. The dual-path blood guide valve includes a valve body 2 and a rotating core 3. A first guide vessel and a second guide vessel are vertically and crosswise arranged inside the valve body 2. The first guide vessel is a straight path, and the second guide vessel is an L-shaped bend. The front ends of both the first and second guide vessels communicate with the inner lumen of the puncture needle tube 1, and their rear ends correspond to the first valve port 4 and the second valve port 5, respectively. A sample reservoir 6 and a heparin cap 7 are connected to the first valve port 4 and the second valve port 5, respectively. A Luer connector 8 is connected to both the first valve port 4 and the second valve port 5. The Luer connector 8 can be detachably connected to both the sample reservoir 6 and the heparin cap 7.

[0029] Furthermore, the rotating core 3 is rotatably connected at the intersection of the first guide vessel and the second guide vessel. The rotating core 3 is threadedly connected to the valve body 2. The rotating core 3 is a cylindrical rotating body. The outer periphery of the rotating core 3 is provided with a limiting protrusion. The valve body 2 is provided with a corresponding groove. The rotating core 3 is provided with a blood guiding groove. The blood guiding groove can switch between connecting the first guide vessel or the second guide vessel by rotating the rotating core 3.

[0030] Furthermore, a rotation mark 9 is provided on the upper end of the swivel core 3, and a passage mark 10 is provided on the outer side of the valve body 2. Multiple rotating ears 11 are circumferentially connected to the top of the swivel core 3, and anti-slip textures are provided on each rotating ear 11.

[0031] Furthermore, an anti-puncture sleeve 12 is provided on the outside of the puncture needle tube 1, and the anti-puncture sleeve 12 is rotatably connected to the bottom of the puncture needle tube 1. A limiting groove 13 is provided inside the anti-puncture sleeve 12, and a limiting block 14 is provided on the outside of the puncture needle tube 1 corresponding to the limiting groove 13. The limiting block 14 is made of rubber.

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

[0033] First, connect the sample container 6 to the first valve port 4 via the Luer connector 8, then connect the heparin cap 7 to the second valve port 5. Next, rotate the rotating core 3 by rotating the lug 11, and then identify it by rotating the indicator 9. Then confirm that the blood guide groove is connected to the first guide vessel. Then, hold the puncture needle 1 and insert the tip into the artery. After the puncture is completed, the inner lumen of the puncture needle 1 is connected to the blood vessel. Then the blood flows through the puncture needle 1 → first guide vessel → first valve port 4 → sample container 6 to complete the sample collection.

[0034] After the sample reservoir 6 has completed collection, it is connected to the second valve port 5 via the Luer connector 8. The rotating core 3 is rotated by the rotating lug 11, and the blood guide groove is confirmed to be connected to the second guide vessel by the rotating indicator 9. The rotating core 3 is threaded to the valve body 2 and is equipped with a limiting protrusion and groove structure to ensure precise control of the rotation stroke and avoid excessive rotation that could cause the passage to become disordered. The blood guide groove switches the connection direction as the rotating core 3 rotates, achieving single-path conduction. Then, the sample reservoir 6 is removed from the first valve port 4 via the Luer connector 8, and the heparin cap 7 is connected to the first valve port 4. The blood then flows through the puncture needle tube 1 → second guide vessel → second valve port 5 → sample reservoir 6, completing the sample collection.

[0035] After sample collection is completed, heparin caps 7 can be detachably connected to both the first valve port 4 and the second valve port 5. This pushes the anti-puncture sleeve 12 to rotate along the puncture needle tube 1, thereby engaging the internal limiting groove 13 of the anti-puncture sleeve 12 with the outer rubber limiting block 14 of the puncture needle tube 1 to lock the sleeve position, thus completely covering the needle tip with the anti-puncture sleeve 12 to prevent accidental needle pricks by medical personnel.

Claims

1. A dual-path anti-needle-puncture arterial blood sample collector, comprising a puncture needle (1) and a dual-path blood guide valve, characterized in that, The dual-path blood guiding valve is located at the rear end of the puncture needle tube (1). The dual-path blood guiding valve includes a valve body (2) and a rotating core (3). The valve body (2) has a first guiding vessel and a second guiding vessel arranged vertically and crosswise. The first guiding vessel is a straight passage, and the second guiding vessel is an L-shaped bend passage. The front ends of the first guiding vessel and the second guiding vessel are connected to the inner lumen of the puncture needle tube (1), and the rear ends correspond to the first valve port (4) and the second valve port (5), respectively. A sample container (6) and a heparin cap (7) are connected to the first valve port (4) and the second valve port (5), respectively. The swivel core (3) is rotatably connected at the intersection of the first guide vessel and the second guide vessel. The swivel core (3) is threadedly connected to the valve body (2). The swivel core (3) is a cylindrical rotating body. The outer periphery of the swivel core (3) is provided with a limiting protrusion. The valve body (2) is provided with a corresponding groove. The swivel core (3) is provided with a blood guiding groove inside. The blood guiding groove can switch between connecting the first guide vessel or the second guide vessel by rotating the swivel core (3).

2. The dual-path anti-needle-puncture arterial blood sample collector according to claim 1, characterized in that, The upper end of the swivel core (3) is provided with a rotation mark (9), and the outer side of the valve body (2) is provided with a passage mark (10).

3. The dual-path anti-needle-puncture arterial blood sample collector according to claim 2, characterized in that, The top of the swivel core (3) is circumferentially connected with multiple rotating ears (11), and each rotating ear (11) is provided with anti-slip texture.

4. A dual-pathway anti-needle-puncture arterial blood sample collector according to claim 1, characterized in that, The puncture needle tube (1) is provided with an anti-puncture sleeve (12) on the outside, and the anti-puncture sleeve (12) is rotatably connected to the bottom of the puncture needle tube (1).

5. A dual-pathway anti-needle-puncture arterial blood sample collector according to claim 4, characterized in that, The anti-needle puncture sleeve (12) has a limiting groove (13) inside, and the puncture needle tube (1) has a limiting block (14) on the outside corresponding to the limiting groove (13), and the limiting block (14) is made of rubber.

6. A dual-pathway anti-needle-puncture arterial blood sample collector according to claim 1, characterized in that, Both the first valve port (4) and the second valve port (5) are connected to Luer connectors (8), and the Luer connectors (8) can be detachably connected to the sample container (6) and the heparin cap (7).

7. A dual-pathway anti-needle-puncture arterial blood sample collector according to claim 1, characterized in that, The puncture needle (1) is made of medical stainless steel, and the dual-channel blood guide valve is made of medical transparent plastic.

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