Novel disposable heel blood collector
By adopting the design of the pivot and slider structure in the blood collector, the arc-shaped motion trajectory and instant trigger of the knife head are realized, solving the safety hazards caused by the difficulty of controlling the force of the existing blood collector during use, and providing a disposable heel blood collector with simple operation, safe and reliable operation.
Patent Information
- Application Number
- CN202421882532.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-06
AI Technical Summary
During use, existing blood collectors have problems such as difficult to control their strength and reuse that may lead to infection and wounds being difficult to heal, and are inconvenient to operate. In particular, needle blood collectors and micro blade blood collectors have insufficient accuracy and safety.
The arc-shaped motion trajectory of the tool head is realized by adopting the lever structure, and instantly triggered with the slider chute structure to ensure that the tool head quickly retracts into the shell after use. Through the matching design of the lever, slider, limit block and tension spring, it cannot be reused after one-time use.
It realizes a simple, safe and reliable blood collection process, ensuring that the blade head cannot be reused after use, improving the accuracy and safety of blood collection, and avoiding wound infection and discomfort in bleeding.
Smart Images
Figure CN223126535U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a novel disposable heel blood collector, and particularly to a heel blood collector that cannot be reused after one use and can be safely used again only after a unused needle holder is reinstalled into the blood collector. Background Art
[0002] Currently, there are many methods for collecting blood samples in health centers or hospitals. For example, for simple blood type or blood glucose tests with a small amount of blood collection, manual operation is generally used. That is, the blood collector holds a lancet and uses the wrist rotation to make the lancet penetrate the heel of the person to be blood collected. However, due to the difficulty in controlling the manual force, the penetration may be too deep or too shallow. One type is a needle-type blood collector that uses pressing to quickly extend the blood collection needle linearly to complete blood collection. Such a blood collection needle not only has the possibility of repeated misuse causing infection to the person being blood collected, but also can cause problems such as difficult wound healing or less bleeding in the person being blood collected. There is also a blood collector that uses a micro blade to perform arc-shaped cutting for blood collection. However, because the triggering device is at the rear of the blood collector, the operation is inconvenient, and sometimes the blood collection site cannot be accurately aligned. Summary of the Invention
[0003] The purpose of the present invention is to improve the defects of the existing technology and provide a novel disposable heel blood collector that is convenient and comfortable to operate, has a simple structure, a small shape, and cannot be pushed up again after one use. It must be reinstalled with a new blade and knife holder before it can be used again.
[0004] The present invention is realized through the following technical solutions: A novel disposable heel blood collector uses a dial block structure to achieve the arc-shaped movement trajectory of the blade head and a slider chute structure to achieve the instant triggering of the blade head. It includes a lower cover, a tension spring, a handle, an upper cover, a slider, a limit block, a blade head, and a dial block. The characteristics are as follows: The blade head is glued in the blade head installation groove of the handle. One end of the tension spring is connected to the fixed column on the lower cover, and the other end is connected to the fixed column on the handle. The dial block is installed on the positioning column of the lower cover. The upper and lower limit columns on the handle are respectively embedded in the linear chute and arc chute of the lower cover. The rotating shaft on the handle is embedded in the slot on the dial block. The other end of the dial block is inserted into the groove on the slider. The slider is installed in the chute on the side of the upper cover and the lower cover. The limit block is inserted into the groove on the side of the slider through the square groove on the lower cover.
[0005] The periphery of the lower cover is provided with positioning columns, and there are two handle chutes in the middle position. The linear chute in the upper middle is perpendicular to the lower arc chute. The vertical distance between the middle highest point and the lowest point on the right side of the arc chute trajectory determines the vertical extension length of the blade head. There is a handle inclined chute connected to the left side of the arc chute to determine the depth of the blade head retracted into the housing. There is a chute for installing the slider on the left side of the lower cover, and a long strip notch is provided on the left side surface.
[0006] At the very top of the described tool handle, there is a tool bit mounting groove, with a limiting post provided respectively above and below, a rotating shaft for fixing the shifting block at a position slightly above the middle, and a fixing post for fixing the tension spring at a position slightly below the middle.
[0007] The described slider is provided with an arc-shaped pushing surface with cross stripes, and rectangular grooves are respectively provided on the bottom surface and the side surface of the slider.
[0008] The described limiting block has a small amount of elasticity, and there are small protrusions on both outer sides of the clamping end.
[0009] The described shifting block is "V"-shaped, with a slot at one end and a through hole at the corner.
[0010] The beneficial effects of this solution can be known from the above. The new type of disposable heel blood collector not only has the characteristics of simple structure, easy to process and manufacture, convenient and comfortable operation, small and delicate appearance, safe and reliable, etc., but also realizes the rapid piercing of the tool bit at the blood collection site through an instantaneous triggering device. After being used once, the tool bit can quickly retract into the shell body and cannot be reused again. Description of the Drawings
[0011] Figure 1 is the front view of the new type of disposable heel blood collector of the present invention. In Figure 1, it includes (1) lower cover, (2) tension spring, (3) tool handle, (4) upper cover, (5) slider, (6) limiting block, (7) tool bit, (8) shifting block.
[0012] Figure 2 is the front view of the new type of disposable heel blood collector of the present invention. In Figure 1, it includes (1) lower cover, (2) tension spring, (3) tool handle, (5) slider, (6) limiting block, (7) tool bit, (8) shifting block.
[0013] Figure 3 is the front view of the new type of disposable heel blood collector of the present invention. In Figure 1, it includes (1) lower cover, (2) tension spring, (3) tool handle, (5) slider, (6) limiting block, (7) tool bit, (8) shifting block.
[0014] Figure 4 is the front view of the new type of disposable heel blood collector of the present invention. In Figure 1, it includes (1) lower cover, (2) tension spring, (3) tool handle, (5) slider, (6) limiting block, (7) tool bit, (8) shifting block.
[0015] Figure 5 is the front view of the new type of disposable heel blood collector of the present invention. In Figure 1, it includes (1) lower cover, (2) tension spring, (3) tool handle, (5) slider, (6) limiting block, (7) tool bit, (8) shifting block. Detailed Implementation Manner
[0016] To clearly illustrate the technical features of this solution, the following further describes the specific embodiments of the present invention with reference to the accompanying drawings: A new type of disposable heel blood collector, comprising a lower cover (1), a tension spring (2), a knife handle (3), an upper cover (4), a slider (5), a limit block (6), a blade tip (7), and a dial block (8), characterized in that: the blade tip (7) is adhesively fixed in the blade tip mounting groove of the knife handle (3); one end of the tension spring (2) is connected to the fixed column on the lower cover (1), and the other end is connected to the fixed column on the knife handle (3); the dial block (8) is mounted on the positioning column of the lower cover (1); the upper and lower limit columns on the knife handle (3) are respectively embedded in the linear chute and the arc chute of the lower cover (1); the rotating shaft on the knife handle (3) is embedded in the slot on the dial block (8); the other end of the dial block (8) is inserted into the groove of the slider (5); the slider (5) is mounted in the chute on the side of the upper cover (4) and the lower cover (1); the limit block (6) is inserted into the groove on the side of the slider (5) after passing through the square slot on the lower cover (1). The periphery of the lower cover (1) is provided with positioning columns, and there are two knife handle chutes in the middle position. The linear chute in the upper middle part is perpendicular to the arc chute in the lower part. The vertical distance between the middle highest point and the right lowest point of the arc chute trajectory determines the vertical protruding length of the blade tip (7). There is an inclined chute of the knife handle (3) communicating with the left side of the arc chute, which determines the depth of the blade tip (7) retracted into the housing. There is a chute for mounting the slider (5) on the left side of the lower cover (1), and a long strip notch is provided on the left side surface. The topmost part of the knife handle (3) is provided with a blade tip mounting groove, and there is a limit column above and below respectively. There is a rotating shaft for fixing the dial block (8) in the upper middle part, and a fixed column for fixing the tension spring (2) in the lower middle part. The slider (5) is provided with an arc-shaped pushing surface with transverse stripes, and rectangular grooves are respectively provided on the bottom surface and the side surface of the slider (5). The limit block (6) has a small amount of elasticity, and there are small protrusions on both outer sides of the clamping end. The dial block (8) is "V"-shaped, with a slot at one end and a through hole at the corner.
Claims
1. A novel disposable heel blood collector, characterized in that: The arc-shaped movement trajectory of the cutter head is realized by adopting a dial block structure, and the instant trigger of the cutter head is realized by adopting a slider and chute structure, including a lower cover, a tension spring, a handle, an upper cover, a slider, a limit block, a cutter head, and a dial block. The cutter head is glued in the cutter head mounting groove of the handle. One end of the tension spring is connected to the fixed column on the lower cover, and the other end is connected to the fixed column on the handle. The dial block is installed on the positioning column of the lower cover. The upper and lower limit columns on the handle are respectively embedded in the linear chute and the arc chute of the lower cover. The rotating shaft on the handle is embedded in the slot on the dial block. The other end of the dial block is inserted into the groove on the slider. The slider is installed in the chute on the side surfaces of the upper cover and the lower cover. The limit block is inserted into the groove on the side surface of the slider after passing through the square groove on the lower cover.
2. The novel disposable heel blood collector according to claim 1, wherein: The periphery of the lower cover is provided with positioning columns, and two handle chutes are provided at the middle position. The linear chute in the upper middle part is perpendicular to the arc chute in the lower part. The vertical distance between the highest point in the middle of the arc chute trajectory and the lowest point on the right determines the vertical extension length of the cutter head. A handle inclined chute communicated with the arc chute is provided on the left side of the arc chute to determine the depth of the cutter head retracted into the housing. There is a chute for installing the slider on the left side of the lower cover, and a long strip notch is provided on the left side surface.
3. The novel disposable heel blood collector according to claim 1, characterized in that: A cutter head mounting groove is provided at the top end of the handle, a limit column is provided at the upper and lower parts respectively, a rotating shaft for fixing the dial block is provided at the upper middle position, and a fixed column for fixing the tension spring is provided at the lower middle position.
4. The novel disposable heel blood collector according to claim 1, characterized in that: The slider is provided with an arc-shaped pushing surface with transverse stripes. Rectangular grooves are respectively provided on the bottom surface and the side surface of the slider. The limit block has a small amount of elasticity, and small protrusions are provided on both outer sides of the clamping end. The dial block is "V"-shaped, with a slot at one end and a through hole at the corner.