Blood sampling device of portable glucometer

Abstract

The utility model discloses a blood sampling device of a portable glucometer in the technical field of blood sampling devices, which comprises a blood sampling cylinder and a needle head, the needle head is detachably fixed at the bottom of the blood sampling cylinder, a sealing cover is sleeved on the blood sampling cylinder on the outer side of the needle head in a sliding mode, and a blood sampling needle hole matched with the needle head is formed in the bottom of the sealing cover in a penetrating mode. A blocking plate is slidably arranged on one side of the interior of the sealing cover, a connecting rod is fixed to the center of the top face of the sealing cover, and the connecting rod is rotationally connected with the interior of the blocking plate in a sleeved mode; by means of a rotary pressing mode, during blood collection, the sealing cover is rotated to enable the needle hole to be aligned with the needle head, the sealing cover is pulled upwards after alignment to enable the needle head to leak out, blood collection can be conducted, during blood collection, the sealing cover cannot be separated from the blood collection cylinder, pollution or loss is avoided, and the blood collection efficiency is improved. The problem that a sealing cover of a blood sampling device of an existing portable glucometer is prone to being polluted and lost is solved, and sanitation and convenience of the blood sampling device in the using process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood sampling devices, in particular to a blood sampling device of a portable blood glucose meter. Background Art

[0002] Diabetes is a chronic disease characterized by high blood sugar caused by absolute or relative insufficient secretion of insulin and impaired utilization. Diabetic patients need to strictly control blood sugar in daily life, so they need to test blood sugar indicators in time. A blood glucose meter is an electronic instrument for measuring blood sugar levels. It is used by diabetic patients to monitor blood sugar and understand blood sugar changes in the body.

[0003] At present, most blood glucose meters are of the damaged type, that is, they need to draw blood for measurement. When drawing blood, the cover on the blood collection tube needs to be removed, and after removal, it is placed aside and then pierced with a needle for blood drawing. However, since the interior is in an exposed state when the cover is removed and placed aside, dust is easily entered, and the cover is small in size and easy to be lost. Based on this, the utility model designs a blood collection device for a portable blood glucose meter to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a portable blood sampling device for a blood glucose meter, so as to solve the problem that the sealing cover of the existing blood sampling device for a portable blood glucose meter proposed in the above background technology is easy to be contaminated and lost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blood collection device of a portable blood glucose meter, comprising a blood collection tube and a needle, the bottom of the blood collection tube is detachably fixed with a needle, a sealing cover is provided on the sliding sleeve of the blood collection tube outside the needle, and a blood collection needle hole matching the needle is opened through the bottom of the sealing cover, a sealing plate is slidably arranged on one side of the inside of the sealing cover, a connecting rod is fixed at the center position of the top surface of the sealing cover, and the connecting rod is rotatably sleeved inside the sealing plate, a sliding rod is symmetrically fixed on the top surface of the sealing plate, and the sliding rod is slidably inserted inside the blood collection tube, a spring is sleeved on the sliding rod on the bottom surface of the blood collection tube, and the two ends of the spring are respectively fixed to the bottom surface of the blood collection tube and the top surface of the sealing plate.

[0006] Preferably, an inner limit plate is slidably sleeved on the inner top surface of the sealing cover, and the inner circle of the inner limit plate is fixed on the outer surface of the blood collection tube, an outer limit plate is fixed on the outer surface of the blood collection tube on the top surface of the sealing cover, and the top surface of the sealing cover is provided with a groove that cooperates with the outer limit plate.

[0007] Preferably, a fixed needle rod is fixed on the top of the needle, and the fixed needle rod is inserted in the bottom of the blood collection tube, a fixed clamp is slidably provided inside the blood collection tube on the side of the fixed needle rod, and the side of the fixed clamp away from the fixed needle rod is rotatably connected with a fixed screw through a bearing, the fixed screw is connected to the internal thread of the blood collection tube, an operating groove cooperating with the fixed screw is opened on the side of the blood collection tube, and the bottom surface of the operating groove is flush with the top surface of the outer limit plate.

[0008] Preferably, a positioning block is fixed on the top surface of the sealing cover, and the thickness of the positioning block is equal to the thickness of the outer limiting plate, and the two positioning blocks are both configured to be fan-shaped to cooperate with the sealing cover.

[0009] Preferably, the diameter of the blood collection needle hole is larger than the diameter of the needle head, a rectangular slot cooperating with the fixed needle rod is provided at the bottom of the blood collection tube, and the height of the fixed needle rod is larger than the height of the needle head.

[0010] Preferably, a non-slip rubber sleeve is glued and fixed to the outer surface of the upper part of the blood collection tube, and the bottom surface of the non-slip rubber sleeve is arranged to be inclined, and the height from the middle of the non-slip rubber sleeve to the bottom surface of the blood collection tube is equal to the height inside the sealing cover.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model rotates the sealing cover to align the needle hole with the needle tip by rotating and pressing during blood collection. After alignment, the sealing cover is pulled upward to make the needle tip appear, and blood collection can be performed. The sealing cover will not be separated from the blood collection tube during blood collection, thus avoiding contamination or loss. The utility model solves the problem that the sealing cover of the blood collection device of the existing portable blood glucose meter is easy to be contaminated and lost, thereby improving the hygiene and convenience of the blood collection device during use.

[0013] (2) Through the detachable design between the needle and the blood collection tube, when the needle is damaged or has been used for a period of time, the fixing screw can be turned to directly remove the needle for replacement, making the blood collection device more convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic front view of the structure of the blood sampling device of the utility model;

[0016] Figure 2 It is a bottom view schematic diagram of the structure of the blood sampling device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model blood sampling device when sampling blood;

[0018] Figure 4 This is a schematic front view of the structure of the utility model blood sampling device when it is closed;

[0019] Figure 5 It is a front view cross-sectional schematic diagram of the structure of the blood sampling device of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-blood collection tube, 2-needle, 3-fixed needle rod, 4-fixed clamping block, 5-fixed screw, 6-operating slot, 7-sealing cover, 8-blood collection needle hole, 9-sealing plate, 10-connecting rod, 11-sliding rod, 12-spring, 13-inner limit plate, 14-outer limit plate, 15-anti-slip rubber sleeve, 16-positioning block. 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 of 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] See also Figure 1-4The utility model provides a technical solution: a blood sampling device of a portable blood glucose meter, comprising a blood sampling tube 1 and a needle 2, a non-slip rubber sleeve 15 is glued and fixed to the outer surface of the upper part of the blood sampling tube 1, and the bottom surface of the non-slip rubber sleeve 15 is arranged in an inclined shape, and the height between the middle part of the non-slip rubber sleeve 15 and the bottom surface of the blood sampling tube 1 is equal to the height inside the sealing cover 7, the bottom of the blood sampling tube 1 is detachably fixed with the needle 2, the blood sampling tube 1 outside the needle 2 is slidably sleeved with a sealing cover 7, the inner top surface of the sealing cover 7 is slidably sleeved with an inner limit plate 13, and the inner circle of the inner limit plate 13 is fixed to the outer surface of the blood sampling tube 1, the outer surface of the blood sampling tube 1 on the top surface of the sealing cover 7 is fixed with an outer limit plate 14, and the top surface of the sealing cover 7 is provided with a groove matched with the outer limit plate 14, a positioning block 16 is fixed to the top surface of the sealing cover 7, and the positioning block 16 The thickness is equal to that of the outer limit plate 14. Both positioning blocks 16 are arranged in a fan shape that cooperates with the sealing cover 7, and a blood collection needle hole 8 that cooperates with the needle 2 is provided at the bottom of the sealing cover 7. The diameter of the blood collection needle hole 8 is larger than the diameter of the needle 2. A rectangular slot that cooperates with the fixed needle rod 3 is provided at the bottom of the blood collection tube 1, and the height of the fixed needle rod 3 is larger than the height of the needle 2. A sealing plate 9 is slidably arranged on one side of the inside of the sealing cover 7, a connecting rod 10 is fixed at the center position of the top surface of the sealing cover 7, and the connecting rod 10 is rotatably sleeved inside the sealing plate 9, a sliding rod 11 is symmetrically fixed on the top surface of the sealing plate 9, and the sliding rod 11 is slidably inserted inside the blood collection tube 1, and a spring 12 is sleeved on the sliding rod 11 on the bottom surface of the blood collection tube 1, and the two ends of the spring 12 are respectively fixed to the bottom surface of the blood collection tube 1 and the top surface of the sealing plate 9.

[0024] When blood sampling is required, the sealing cover 7 is rotated so that the sealing cover 7 is rotated to the right positioning block 16 and fits with the outer limiting plate 14. At this time, the blood sampling needle hole 8 is aligned with the needle head 2, and the slot is aligned with the outer limiting plate 14. The sealing cover 7 is pushed upward so that the sealing cover 7 compresses the sealing plate 9 and moves upward, so that the sealing plate 9 drives the sliding rod 11 to compress the spring 12 and move it upward until the bottom surface of the blood sampling needle hole 8 fits with the bottom surface of the blood sampling tube 1. At this time, the top of the sealing cover 7 squeezes the anti-slip rubber sleeve 15, and the sealing cover 7 and the blood sampling tube 1 are in contact. Under the action of the squeezing force and friction force between the anti-slip rubber sleeve 15, the sealing cover 7 can be fixed. At this time, the needle 2 can leak out and blood can be collected. After the blood collection is completed, the sealing cover 7 is pushed downward to separate the sealing cover 7 from the anti-slip rubber sleeve 15. At this time, the sealing plate 9 and the sealing cover 7 are pushed by the spring 12 to abut against the inner limit plate 13. The sealing cover 7 is rotated to make the other positioning block 16 abut against the outer limit plate 14. At this time, the blood collection needle hole 8 is rotated to be misaligned with the needle 2 and fits the bottom surface of the sealing plate 9 to complete the sealing.

[0025] See also Figure 1-4A fixed needle rod 3 is fixed on the top of the needle 2, and the fixed needle rod 3 is inserted into the bottom of the blood collection tube 1. A fixed clamp block 4 is slidably arranged inside the blood collection tube 1 on the side of the fixed needle rod 3, and the fixed clamp block 4 is rotatably connected with a fixed screw 5 through a bearing on the side away from the fixed needle rod 3. The fixed screw 5 is threadedly connected to the inside of the blood collection tube 1, and an operating groove 6 cooperating with the fixed screw 5 is opened on the side of the blood collection tube 1, and the bottom surface of the operating groove 6 is flush with the top surface of the outer limit plate 14.

[0026] When the needle 2 needs to be replaced, the blood collection tube 1 is first placed horizontally with the operating slot 6 facing upward, and the fixing screw 5 is rotated to drive the fixing clamp 4 to move outward under the action of the thread, so that the clamping fixation of the fixing clamp 4 on the fixed needle rod 3 is released, and then the sealing cover 7 is rotated until the blood collection needle hole 8 is aligned with the needle 2, and the sealing cover 7 is pushed toward the side of the blood collection tube 1 to expose the needle 2, and then the needle 2 and the fixed needle rod 3 are directly pulled out from the inside of the blood collection tube 1, and the new needle 2 and the fixed needle rod 3 are pushed into the inside of the blood collection tube 1, the length of the needle 2 is adjusted, and the fixing screw 5 is turned to re-clamp the fixed needle rod 3 to fix it.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A blood sampling device for a portable blood glucose meter, comprising a blood sampling tube (1) and a needle (2), characterized in that: The bottom of the blood collection tube (1) is detachably fixed with a needle (2), the blood collection tube (1) outside the needle (2) is slidably sleeved with a sealing cover (7), and a blood collection needle hole (8) cooperating with the needle (2) is formed through the bottom of the sealing cover (7), a sealing plate (9) is slidably arranged on one side of the inside of the sealing cover (7), a connecting rod (10) is fixed at the center position of the top surface of the sealing cover (7), and the connecting rod (10) is rotatably sleeved inside the sealing plate (9), a sliding rod (11) is symmetrically fixed on the top surface of the sealing plate (9), and the sliding rod (11) is slidably inserted inside the blood collection tube (1), and a spring (12) is sleeved on the sliding rod (11) on the bottom surface of the blood collection tube (1), and the two ends of the spring (12) are respectively fixed to the bottom surface of the blood collection tube (1) and the top surface of the sealing plate (9).

2. The portable blood glucose meter blood sampling device according to claim 1, characterized in that: An inner limit plate (13) is slidably sleeved on the inner top surface of the sealing cover (7), and the inner circle of the inner limit plate (13) is fixed to the outer surface of the blood collection tube (1). An outer limit plate (14) is fixed to the outer surface of the blood collection tube (1) on the top surface of the sealing cover (7), and a groove cooperating with the outer limit plate (14) is provided on the top surface of the sealing cover (7).

3. The portable blood glucose meter blood sampling device according to claim 1, characterized in that: A fixed needle rod (3) is fixed on the top of the needle head (2), and the fixed needle rod (3) is inserted into the bottom of the blood collection tube (1). A fixed clamp (4) is slidably arranged inside the blood collection tube (1) on the side of the fixed needle rod (3), and a fixed screw (5) is rotatably connected to the side of the fixed clamp (4) away from the fixed needle rod (3) through a bearing. The fixed screw (5) is threadedly connected to the inside of the blood collection tube (1), and an operating groove (6) cooperating with the fixed screw (5) is opened on the side of the blood collection tube (1), and the bottom surface of the operating groove (6) is flush with the top surface of the outer limit plate (14).

4. The portable blood glucose meter blood sampling device according to claim 1, characterized in that: A positioning block (16) is fixed on the top surface of the sealing cover (7), and the thickness of the positioning block (16) is equal to the thickness of the outer limiting plate (14). Both positioning blocks (16) are configured to be fan-shaped to match the sealing cover (7).

5. The portable blood glucose meter blood sampling device according to claim 1, characterized in that: The diameter of the blood collection needle hole (8) is greater than the diameter of the needle head (2); a rectangular slot matching the fixed needle rod (3) is provided at the bottom of the blood collection tube (1); and the height of the fixed needle rod (3) is greater than the height of the needle head (2).

6. The portable blood glucose meter blood sampling device according to claim 1, characterized in that: The upper outer surface of the blood collection tube (1) is glued and fixed with an anti-skid rubber sleeve (15), and the bottom surface of the anti-skid rubber sleeve (15) is arranged in an inclined shape. The height between the middle of the anti-skid rubber sleeve (15) and the bottom surface of the blood collection tube (1) is equal to the height inside the sealing cover (7).

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