Disposable stamp finger blood collection device
By designing a seal-type finger blood collector with annular plate and threaded groove, the problem of traditional blood collectors being pierced too deeply during the blood collection process of children is solved, and blood collection effect is achieved suitable for children.
Patent Information
- Application Number
- CN202421184968.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-28
AI Technical Summary
During the blood collection process of children, due to the different thicknesses of muscles and other tissues in children than adults, the use of traditional blood collection devices to perform blood collection work on children can easily lead to the puncture of the blood collection needle too deep, causing harm to children.
A disposable seal-type finger blood collector is designed. By setting an annular plate and thread groove between the outer cylinder one and the outer cylinder two, the structure of the blood collector is adjusted to extend the path before triggering and the stroke after triggering of the elastic component, thereby reducing the depth of the blood collector piercing into the skin.
It effectively reduces the depth of the blood collection needle piercing on children's skin, reduces the damage to children, and achieves the effect of adapting to children for blood collection.
Smart Images
Figure CN222708240U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blood sampling devices, and more specifically to a disposable stamp-type finger blood sampling device. Background Art
[0002] Venous blood sampling is the most common medical operation technique for laboratories and nursing staff. The blood collection needle at the top of the venous blood collection needle is used to puncture blood vessels. The transparent plastic hose in the middle section is connected to the needle seat and the tail needle. The tail needle is wrapped with a rubber sleeve and a needle cap. The tail needle is used to pierce a vacuum blood collection tube and use the negative pressure in the tube to draw blood into the tube.
[0003] At present, when using a disposable blood collection device to collect blood from a finger, the blood collection device is usually placed directly on the fingertip and pressed hard, forcing the spring to drive the blood collection needle to pop out and quickly pierce the finger, so that blood flows out from the needle hole by squeezing the finger to complete the blood collection. However, during the blood collection process for children, since the thickness of children's muscles and other tissues is different from that of adults, using a traditional blood collection device to collect blood from children is likely to cause the blood collection needle to penetrate too deeply, causing harm to the child. In view of this, we propose a disposable stamp-type finger blood collection device. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a disposable stamp-type finger blood collection device to solve the technical problem that in the current blood collection process for children, due to the different thickness of muscle tissues such as children compared with adults, the use of traditional blood collection devices to collect blood from children is prone to cause the blood collection needle to penetrate too deeply, causing harm to the children.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a disposable stamp-type finger blood collection device, comprising an outer cylinder body 1 and an outer cylinder body 2 which are detachably connected;
[0006] An annular plate is arranged on the inner edge surface of one end of the outer cylinder body 2 facing the outer cylinder body 1, a thread groove matching with the thread of the annular plate is arranged on the inner edge surface of one end of the outer cylinder body 1 facing the outer cylinder body 2, and a blood collection assembly is movably installed inside the outer cylinder body 1 and the outer cylinder body 2;
[0007] The blood sampling assembly comprises a pressurizing component movably arranged in the outer cylinder body 1 and an elastic component arranged in the outer cylinder body 2 for elastically triggering blood sampling. A safety cap is detachably mounted on one end of the outer cylinder body 1 away from the outer cylinder body 2.
[0008] The utility model designs an annular plate and a threaded groove, and the cooperation between the annular plate and the threaded groove is conducive to adjusting the distance between the outer cylinder body one and the outer cylinder body two, so that the path of the elastic component before being triggered is extended, and the stroke after being triggered is extended, so that the depth of the elastic component penetrating into the skin after being triggered is reduced, so as to achieve the effect of adapting blood collection work for children, and solve the problem that in the process of blood collection work for children, due to the different thickness of muscles and other tissues of children compared with adults, the use of traditional blood collection devices for blood collection work on children is likely to cause the blood collection needle to penetrate too deeply, causing harm to the children.
[0009] Preferably, the pressurizing component includes a movable block movably arranged at one end of an inner part of the outer cylinder, one end of the movable block is provided with elastic components in a ring array for movably contacting the elastic component for blood sampling, and a positioning groove is centrally provided inside the movable block.
[0010] Preferably, the elastic component includes a connecting plate with one side structure connected to the movable block, and an elastic connecting arm that can be elastically bent is fixedly provided at the end of the connecting plate away from the movable block. A limiting slot is formed on one side of the elastic connecting arm, and the end of the elastic connecting arm is a curved structure.
[0011] Preferably, the elastic component includes a pressure plate movably arranged in the outer cylinder body 2, a spring is fixedly installed on one side of the pressure plate, one end of the spring away from the pressure plate is fixedly connected to the outer cylinder body 2, an annular groove is formed at the edge position of the pressure plate, the annular groove has a curved groove structure, and an annular rounded corner portion is formed at the edge position of the annular groove.
[0012] Preferably, a blood collection needle seat that can be movably extended and retracted in the positioning groove is fixedly provided in the center of a side of the annular rounded corner away from the spring, and a blood collection needle body is fixedly provided at one end of the blood collection needle seat away from the pressure plate.
[0013] Preferably, a covering ring is constructed on the inner wall of one end of the outer cylinder body 2 away from the outer cylinder body 1, the covering ring cover is arranged outside one end of the spring, and a fixing plate is arranged in a circular array structure between the outer edge surface of the covering ring and the inner wall of the outer cylinder body 2.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model designs an annular plate and a threaded groove, and the cooperation between the annular plate and the threaded groove is conducive to adjusting the distance between the outer cylinder body 1 and the outer cylinder body 2, so that the path of the elastic component before being triggered is extended, and the stroke after being triggered is extended, so that the depth of the elastic component penetrating the skin after being triggered is reduced, so as to achieve the effect of adapting children to perform blood collection work, and solve the problem that during the blood collection process of children, due to the different thickness of muscles and other tissues of children compared with adults, the use of traditional blood collection devices for blood collection work on children is prone to cause the blood collection needle to penetrate too deeply, causing harm to the children.
[0016] 2. The utility model also designs an elastic connecting arm and a pressure plate. By pressing the movable block, the elastic connecting arm abuts against the annular groove and continuously applies pressure to the pressure plate, so that the spring is compressed and deformed. As the pressure applied by the elastic connecting arm to the pressure plate gradually increases, the connecting part of the connecting plate and the elastic connecting arm undergoes elastic expansion and deformation, thereby releasing the elastic force of the spring to drive the blood collection needle body to extend and collect blood. After the blood collection is completed, the spring resets and is clamped in the limit slot, achieving the effect of automatic locking after blood collection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the utility model in the adult use mode;
[0018] Figure 2 This is a schematic diagram of the structure of the utility model in a child use mode;
[0019] Figure 3 For this utility model Figure 1 A cross-sectional view of
[0020] Figure 4 For this utility model Figure 2 A cross-sectional view of
[0021] Figure 5 This is a schematic diagram of the structure of the blood sampling assembly of the utility model;
[0022] Figure 6 It is a structural schematic diagram of the practical elastic component.
[0023] Description of the numbers in the figure:
[0024] 1. Outer cylinder body 1; 2. Outer cylinder body 2; 3. Safety helmet; 4. Annular plate; 5. Blood collection assembly; 501. Spring; 502. Pressure plate; 503. Annular slide groove; 504. Blood collection needle seat; 505. Blood collection needle body; 506. Movable block; 507. Annular fillet; 6. Elastic component; 601. Connecting plate; 602. Elastic connecting arm; 603. Limiting slot; 7. Covering ring; 8. Fixed plate. DETAILED DESCRIPTION
[0025] like Figure 1-Figure 4 As shown, the disposable stamp-type finger blood sampler involved in the utility model comprises an outer cylinder body 1 and an outer cylinder body 2 which are detachably connected, an annular plate 4 is constructed and arranged on the inner edge surface of one end of the outer cylinder body 2 facing the outer cylinder body 1, a threaded groove which is threadably matched with the annular plate 4 is provided on the inner edge surface of one end of the outer cylinder body 1 facing the outer cylinder body 2, and a blood sampling component 5 is movably installed inside the outer cylinder body 1 and the outer cylinder body 2, the blood sampling component 5 comprises a pressurizing component movably arranged in the outer cylinder body 1 and an elastic component arranged in the outer cylinder body 2 for elastically triggering blood sampling, and a safety cap 3 is detachably installed on the end of the outer cylinder body 1 away from the outer cylinder body 2.
[0026] like Figure 3-Figure 6 As shown, in the embodiment of the utility model, the pressurizing component includes a movable block 506 movably arranged at one end of the inner part of the outer cylinder 1, one end of the movable block 506 is provided with an elastic component 6 for movably contacting the elastic component for blood collection in a ring array, and a positioning groove is provided in the center of the movable block 506, and the elastic component 6 includes a connecting plate 601 connected to the movable block 506 on one side, and an elastic connecting arm 602 that can be elastically bent is fixedly provided on the end of the connecting plate 601 away from the movable block 506, and a limited position slot 603 is formed on one side of the elastic connecting arm 602, and the end of the elastic connecting arm 602 is a curved structure, and the elastic The component includes a pressure plate 502 movably arranged in the outer cylinder body 2, a spring 501 is fixedly installed on one side of the pressure plate 502, and one end of the spring 501 away from the pressure plate 502 is fixedly connected to the outer cylinder body 2, and an annular groove 503 is formed at the edge of the pressure plate 502. The annular groove 503 has a curved groove structure, and an annular fillet 507 is formed at the edge of the annular groove 503. A blood collection needle seat 504 that can be movably extended and retracted in the positioning groove is fixedly arranged in the center of the annular fillet 507 away from the spring 501, and a blood collection needle body 505 is fixedly arranged at one end of the blood collection needle seat 504 away from the pressure plate 502.
[0027] like Figure 4 and Figure 5 As shown, in an embodiment of the utility model, a covering ring 7 is constructed on the inner wall of one end of the outer cylinder body 2 away from the outer cylinder body 1, the covering ring 7 is covered on the outside of one end of the spring 501, and a fixing plate 8 is arranged in a circular array structure between the outer edge surface of the covering ring 7 and the inner wall of the outer cylinder body 2.
[0028] Working principle: This embodiment provides a disposable stamp-type finger blood sampling device. When in use, first remove the safety cap 3, then place the movable block 506 against the blood sampling position, then press the outer cylinder 1 and the outer cylinder 2 2 downward to retract the movable block 506 into the outer cylinder 1. During the retraction process, the connecting plate 601 and the elastic connecting arm 602 are simultaneously driven to move, so that the elastic connecting arm 602 is abutted against the annular groove 503 and continuously pressurizes the pressure plate 502, so that the spring 501 is compressed and deformed. Since the end of the elastic connecting arm 602 and the annular groove 503 are both curved structures, the elastic connecting arm 602 expands outward during the pressure application process. The elastic force of the spring 501 gradually increases, and the elastic connecting arm 602 expands outward and deforms. At this time, the pressure plate 502 breaks away from the restriction of the elastic connecting arm 602, and the elastic force of the spring 501 is released and pushes the blood collection needle seat 504 to pass quickly through the positioning groove, so that the blood collection needle body 505 is inserted into the skin to complete the blood collection work. When blood collection work is required for children, the cooperation between the annular plate 4 and the threaded groove is conducive to adjusting the distance between the outer cylinder body 1 and the outer cylinder body 2, so that the path before the elastic component is triggered is extended, and the stroke after the trigger is extended, so that the depth of the elastic component penetrating the skin after being triggered is reduced.
[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A disposable stamp-type finger blood collection device, characterized in that: It comprises an outer cylinder body 1 (1) and an outer cylinder body 2 (2) which are detachably connected; An annular plate (4) is constructed on the inner edge surface of one end of the outer cylinder body 2 (2) facing the outer cylinder body 1 (1), a thread groove is provided on the inner edge surface of one end of the outer cylinder body 1 (1) facing the outer cylinder body 2 (2) to cooperate with the thread of the annular plate (4), and a blood collection assembly (5) is movably installed inside the outer cylinder body 1 (1) and the outer cylinder body 2 (2); The blood sampling assembly (5) comprises a pressurizing component movably arranged in the outer cylinder body 1 (1) and an elastic component arranged in the outer cylinder body 2 (2) for elastically triggering blood sampling. A safety cap (3) is detachably mounted on one end of the outer cylinder body 1 (1) away from the outer cylinder body 2 (2).
2. The disposable stamp-type finger lancet according to claim 1, characterized in that: The pressurizing component comprises a movable block (506) movably arranged at one end of the inner part of the outer cylinder (1), one end of the movable block (506) is provided with elastic components (6) in a ring array for movably contacting the elastic component for blood collection, and a positioning groove is centrally provided inside the movable block (506).
3. The disposable stamp-type finger lancet according to claim 2, characterized in that: The elastic component (6) comprises a connecting plate (601) having one side structure connected to the movable block (506); an elastic connecting arm (602) that can be elastically bent is fixedly provided at the end of one side of the connecting plate (601) away from the movable block (506); a limiting slot (603) is formed on one side of the elastic connecting arm (602), and the end of the elastic connecting arm (602) is a curved structure.
4. The disposable stamp-type finger lancet according to claim 3, characterized in that: The elastic component comprises a pressure plate (502) movably arranged in the outer cylinder body 2 (2), a spring (501) is fixedly installed on one side of the pressure plate (502), one end of the spring (501) away from the pressure plate (502) is fixedly connected to the outer cylinder body 2 (2), an annular groove (503) is formed at the edge position of the pressure plate (502), the annular groove (503) is a curved groove structure, and an annular rounded corner portion (507) is formed at the edge position of the annular groove (503).
5. The disposable stamp-type finger lancet according to claim 4, characterized in that: A blood collection needle seat (504) that can be movably extended and retracted in the positioning groove is fixedly arranged in the center of the side of the annular rounded corner portion (507) away from the spring (501), and a blood collection needle body (505) is fixedly arranged at one end of the blood collection needle seat (504) away from the pressure plate (502).
6. The disposable stamp-type finger lancet according to claim 4, characterized in that: A covering ring (7) is formed on the inner wall of one end of the outer cylinder body 2 (2) away from the outer cylinder body 1 (1), the covering ring (7) is arranged outside one end of the spring (501), and a fixing plate (8) is arranged between the outer edge surface of the covering ring (7) and the inner wall of the outer cylinder body 2 (2) in a ring array structure.