Blood collection device for hemodialysis department nursing

By introducing a drive motor and a shaking anti-coagulation mechanism into the hemodialysis department nursing device, the problem of blood coagulation during static storage was solved, enabling stable blood storage and smooth subsequent testing.

CN224125951UActive Publication Date: 2026-04-17GUANGZHOU RED CROSS HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU RED CROSS HOSPITAL
Filing Date
2025-01-10
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing hemodialysis nursing devices, blood tends to coagulate easily when left to stand in test tubes after collection, affecting subsequent laboratory analysis.

Method used

A blood collection device was designed, consisting of a shell, a blood collection tube, a collection needle, a drive motor, and a shaking anti-coagulation mechanism. The drive motor rotates a disc, causing the blood collection tube to swing back and forth, thus preventing coagulation.

Benefits of technology

It effectively prevents blood clotting, ensures blood quality, and guarantees the smooth progress of subsequent tests.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224125951U_ABST
Patent Text Reader

Abstract

The utility model discloses a blood collection device for hemodialysis department nursing, and relates to the field of hemodialysis nursing, the blood collection device comprises a shell and a blood collection tube arranged in the shell, the surface of the blood collection tube is provided with a collection needle tube, the upper surface of the shell is provided with a fixing block, and the outer side of the fixing block is provided with a portable taking and placing mechanism. And the portable pick-and-place mechanism is provided with a positioning block. According to the blood collection device for hemodialysis department nursing, after a blood collection tube is placed, a driving motor is started, the output end of the driving motor drives a disc to rotate, when the disc rotates, a cylinder can be driven to rotate, when the cylinder is rotated, a push rod can be pushed through an open groove in the left side of the push rod, and the push rod is driven to rotate under limiting of a shell. A mounting plate can be pushed to move left and right back and forth, so that the bottom of the blood collecting pipe can be driven to swing back and forth, collected blood is prevented from being coagulated, the blood quality is guaranteed, and subsequent detection is prevented from being affected after coagulation.
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Description

Technical Field

[0001] This utility model relates to the field of hemodialysis nursing technology, specifically a blood collection device for hemodialysis nursing. Background Technology

[0002] Blood collection devices used in hemodialysis nursing are primarily used to collect blood samples during or after dialysis. These devices are designed to ensure the safe and efficient collection of blood from dialysis patients for laboratory analysis or monitoring.

[0003] In existing technologies, when using the device, the test tube is prone to tilting and falling when drawing blood samples, which is inconvenient for the user and easily damaged.

[0004] To overcome the above shortcomings, existing Chinese patent (publication number CN213698187U) discloses a blood collection device for hemodialysis nursing, including a base, an internal support seat, a test tube movably connected to the inner side of the support seat, lifting columns fixedly connected to both sides of the support seat, a motor compartment fixedly connected to both sides of the bottom end of the base, a threaded rod movably connected to the top of the motor compartment, a threaded hole on the inner side of the lifting column, the threaded hole being threadedly connected to the threaded rod, and a base plate fixedly connected to the bottom end of the base. Through the coordinated arrangement of the support frame, telescopic column, buffer spring, support protection frame, soft pad, and base, the problem of inconvenience in protecting the support tube wall is solved, the stability and practicality of the device are improved, the test tube is prevented from tilting and falling, and the safety of the device is enhanced.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, after the patient's blood is collected, prolonged standing in the test tube can easily cause the blood to coagulate, making it impossible to perform subsequent laboratory analysis and hindering the staff's care in the hemodialysis department. Utility Model Content

[0006] The purpose of this invention is to provide a blood collection device for hemodialysis nursing care, in order to solve the problem mentioned in the background art that after the patient's blood is collected, the blood is left to stand in the test tube for a long time, which can easily cause the blood to coagulate, making it impossible to perform subsequent laboratory analysis and hindering the nursing care of hemodialysis staff.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a blood collection device for hemodialysis nursing, comprising a housing and a blood collection tube disposed inside the housing, wherein a collection needle is mounted on the surface of the blood collection tube, a fixing block is disposed on the upper surface of the housing, and a portable picking and placing mechanism is disposed on the outer side of the fixing block, wherein the portable picking and placing mechanism is disposed of a positioning block, and the positioning block is located inside the fixing block, a drive motor is disposed on the left side of the housing, and a shaking anti-coagulation mechanism is disposed at the output end of the drive motor, wherein the shaking anti-coagulation mechanism is disposed of a disc, and the lower end of the disc is disposed at the output end of the drive motor.

[0008] Furthermore, the upper surface of the housing has an opening, and the blood collection tube is located inside the opening.

[0009] Furthermore, the portable retrieval mechanism is provided with a damping rod, and the middle end of the damping rod is fixedly installed at the middle end of the fixing block, and the inner output end of the damping rod is fixedly installed on the outer side of the positioning block.

[0010] Furthermore, the inner side of the positioning block is arc-shaped, and a first anti-slip pad is fixedly installed on the inner wall of the positioning block. The first anti-slip pad is arc-shaped, and the inner side of the first anti-slip pad is in contact with the outer wall of the blood collection tube.

[0011] Furthermore, a pull rod is installed through both sides of the fixing block, and the inner side of the pull rod is fixedly installed on the outer side of the positioning block. A return spring is provided between the positioning block and the fixing block, and the return spring is sleeved on the inner surface of the pull rod.

[0012] Furthermore, the shaking anti-solidification mechanism is provided with a cylinder, and the lower end of the cylinder is fixedly installed on the surface of the disc. A push rod is sleeved on the surface of the cylinder, and the middle end of the push rod penetrates the mounting housing.

[0013] Furthermore, an installation plate is fixedly installed on the inner side of the push rod, and a support cylinder is fixedly installed on the inner side of the installation plate. The support cylinder is sleeved on the bottom of the blood collection tube, and a second anti-slip pad is provided on the inner wall of the blood collection tube. A partition is provided on the outer side of the drive motor and the disc, and the inner side of the partition is fixedly installed on the outer wall of the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Three blood collection tubes are placed inside the shell. When using the device, the blood required for hemodialysis nursing is collected by the collection needle. After the blood collection is completed, it enters the blood collection tube. After collection, it is placed inside the opening on the surface of the shell to facilitate blood collection and storage.

[0015] Furthermore, when placing the blood collection tube, pulling the lever causes it to move along the fixed block, which in turn moves the positioning block outward. This, combined with the return spring, reduces shock and prevents the return spring from reciprocating. This makes it easier for the user to place the blood collection tube and avoids collision damage. At the same time, the first anti-slip pad increases the friction between the positioning block and the blood collection tube, ensuring the stability of the clamping.

[0016] 2. After the blood collection tube is placed, the drive motor is started. The output end of the drive motor drives the disc to rotate. When the disc rotates, it drives the cylinder to rotate. When the cylinder is rotated, it can push the push rod through the slot on the left side of the push rod. Under the limit of the housing, the push rod can move back and forth to push the mounting plate. This can drive the bottom of the blood collection tube to swing back and forth, so as to avoid the blood from coagulating after collection, ensure the quality of the blood, and avoid the impact of coagulation on subsequent tests.

[0017] Furthermore, when the mounting plate moves, it can push the support cylinder, which can increase the friction between the support cylinder and the blood collection tube and provide protection. With the partition set, the drive motor part is isolated. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This is a frontal sectional view of the three-dimensional structure of this utility model;

[0021] Figure 4 This is a top-section three-dimensional structural diagram of the present invention;

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the support cylinder of this utility model;

[0023] Figure 6 This is a top-view three-dimensional structural diagram of the portable retrieval mechanism of this utility model.

[0024] In the diagram: 1. Shell; 2. Blood collection tube; 3. Collection needle; 4. Fixing block; 5. Damping rod; 6. Positioning block; 7. First anti-slip pad; 8. Pull rod; 9. Return spring; 10. Partition plate; 11. Drive motor; 12. Disc; 13. Cylinder; 14. Push rod; 15. Mounting plate; 16. Support cylinder; 17. Second anti-slip pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: As Figure 1 , Figure 3 and Figure 4 The technical solution shown is a blood collection device for hemodialysis nursing. In order to solve the problem of inconvenience in collecting blood samples, it discloses: a shell 1 and a blood collection tube 2 disposed inside the shell 1, and a collection needle tube 3 is installed on the surface of the blood collection tube 2. An opening is opened on the upper surface of the shell 1, and the blood collection tube 2 is located inside the opening.

[0027] Three blood collection tubes 2 are placed inside the housing 1. When using the device, blood required for hemodialysis nursing is collected through the collection needle 3. After the blood is collected by the collection needle 3, it enters the blood collection tube 2. After collection, it is placed inside the opening on the surface of the housing 1 to facilitate blood collection and storage.

[0028] Example 2: Figure 1 , Figure 2 and Figure 6 The technical solution shown, based on Embodiment 1, discloses the following to solve the problem of inconvenient removal and placement: a fixing block 4 is provided on the upper surface of the housing 1, and a portable removal and placement mechanism is provided on the outer side of the fixing block 4. The portable removal and placement mechanism is provided with a positioning block 6, and the positioning block 6 is located on the inner side of the fixing block 4. The portable removal and placement mechanism is provided with a damping rod 5, and the middle end of the damping rod 5 is fixedly installed on the middle end of the fixing block 4. The inner output end of the damping rod 5 is fixedly installed on the outer side of the positioning block 6. The inner side of the positioning block 6 is arc-shaped, and a first anti-slip pad 7 is fixedly installed on the inner wall of the positioning block 6. The first anti-slip pad 7 is arc-shaped, and the inner side of the first anti-slip pad 7 is in contact with the outer wall of the blood collection tube 2. Pull rods 8 are installed through both sides of the fixing block 4, and the inner side of the pull rods 8 is fixedly installed on the outer side of the positioning block 6. A return spring 9 is provided between the positioning block 6 and the fixing block 4, and the return spring 9 is sleeved on the inner surface of the pull rod 8.

[0029] When placing the blood collection tube 2, by pulling the lever 8, the lever 8 moves along the fixed block 4 and moves the positioning block 6 outward. After placing the blood collection tube 2 inside the housing 1, the lever 8 is released, so that the positioning block 6 moves inward under the elastic force of the return spring 9 to clamp the blood collection tube 2. The damping rod 5, together with the return spring 9, reduces shock and prevents the return spring 9 from reciprocating. This makes it easier for the user to place the blood collection tube 2 and avoids collision damage. At the same time, the first anti-slip pad 7 increases the friction between the positioning block 6 and the blood collection tube 2, ensuring the stability of the clamping.

[0030] Example 3: Figure 1 , Figure 3 , Figure 4 and Figure 5 The technical solution shown, based on Embodiment 2, discloses the following to address the problem of blood coagulation: A drive motor 11 is installed on the left side of the housing 1, and a shaking anti-coagulation mechanism is provided at the output end of the drive motor 11. The shaking anti-coagulation mechanism is provided with a disc 12, and the lower end of the disc 12 is located at the output end of the drive motor 11. The shaking anti-coagulation mechanism is provided with a cylinder 13, and the lower end of the cylinder 13 is fixedly installed on the surface of the disc 12. A push rod 14 is sleeved on the surface of the cylinder 13, and the middle end of the push rod 14 penetrates the housing 1. An installation plate 15 is fixedly installed on the inner side of the push rod 14, and a support cylinder 16 is fixedly installed on the inner side of the installation plate 15. The support cylinder 16 is sleeved on the bottom of the blood collection tube 2, and a second anti-slip pad 17 is provided on the inner wall of the blood collection tube 2. A partition 10 is provided on the outer side of the drive motor 11 and the disc 12, and the inner side of the partition 10 is fixedly installed on the outer wall of the housing 1.

[0031] After the blood collection tube 2 is placed, the drive motor 11 is started. The output end of the drive motor 11 drives the disc 12 to rotate. When the disc 12 rotates, it drives the cylinder 13 to rotate. When the cylinder 13 is rotated, it can push the push rod 14 through the slot on the left side of the push rod 14. Under the limitation of the housing 1, the push rod 14 can move back and forth to push the mounting plate 15. When the mounting plate 15 moves, it can push the support cylinder 16. The support cylinder 16 causes the bottom of the blood collection tube 2 to swing back and forth. The setting of the second anti-slip pad 17 can increase the friction between the support cylinder 16 and the blood collection tube 2 and provide protection. With the setting of the partition 10, the drive motor 11 is isolated. In this way, the bottom of the blood collection tube 2 can swing back and forth, so as to avoid the blood coagulation after collection, ensure the quality of the blood, and avoid the impact of coagulation on subsequent tests.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blood collection device for hemodialysis nursing, comprising a housing (1) and a blood collection tube (2) disposed inside the housing (1), wherein a collection needle (3) is mounted on the surface of the blood collection tube (2). characterized in that The upper surface of the housing (1) is provided with a fixing block (4), and a portable picking and placing mechanism is provided on the outside of the fixing block (4), and the portable picking and placing mechanism is provided with a positioning block (6), and the positioning block (6) is located on the inside of the fixing block (4). A drive motor (11) is installed on the left side of the housing (1), and a shaking anti-solidification mechanism is provided at the output end of the drive motor (11), and a disc (12) is provided at the output end of the shaking anti-solidification mechanism, and the lower end of the disc (12) is provided at the output end of the drive motor (11).

2. The blood collection device for hemodialysis department nursing according to claim 1, characterized in that: The upper surface of the housing (1) has an opening, and the blood collection tube (2) is located inside the opening.

3. The blood collection device for hemodialysis department nursing according to claim 1, characterized in that: The portable retrieval mechanism is provided with a damping rod (5), and the middle end of the damping rod (5) is fixedly installed at the middle end of the fixing block (4), and the inner output end of the damping rod (5) is fixedly installed on the outer side of the positioning block (6).

4. The blood collection device for hemodialysis unit nursing according to claim 3, characterized in that: The inner side of the positioning block (6) is arc-shaped, and a first anti-slip pad (7) is fixedly installed on the inner wall of the positioning block (6). The first anti-slip pad (7) is arc-shaped, and the inner side of the first anti-slip pad (7) is attached to the outer wall of the blood collection tube (2).

5. The blood collection device for use in a hemodialysis unit according to claim 4, characterized in that: Pull rods (8) are installed through both sides of the fixing block (4), and the inner side of the pull rods (8) is fixedly installed on the outer side of the positioning block (6). A return spring (9) is provided between the positioning block (6) and the fixing block (4), and the return spring (9) is sleeved on the inner surface of the pull rod (8).

6. The blood collection device for hemodialysis department nursing according to claim 1, characterized in that: The shaking anti-solidification mechanism is provided with a cylinder (13), and the lower end of the cylinder (13) is fixedly installed on the surface of the disc (12). A push rod (14) is sleeved on the surface of the cylinder (13), and the middle end of the push rod (14) penetrates the mounting housing (1).

7. The blood collection device for use in a hemodialysis unit according to claim 6, characterized in that: An mounting plate (15) is fixedly installed on the inner side of the push rod (14), and a support cylinder (16) is fixedly installed on the inner side of the mounting plate (15). The support cylinder (16) is sleeved on the bottom of the blood collection tube (2), and a second anti-slip pad (17) is provided on the inner wall of the blood collection tube (2). A partition (10) is provided on the outer side of the drive motor (11) and the disc (12), and the inner side of the partition (10) is fixedly installed on the outer wall of the housing (1).

Citation Information

Patent Citations

  • Blood collection device for hemodialysis department nursing

    CN213698187U