Handheld pressing type large-aperture puncher

Abstract

When the handheld pressing type large-aperture puncher is used, a hand holds a grip, a thumb is placed on a pressing button, a sample adding positioning pipe is vertically inserted into a container for collecting a punched sample, the right end, with a blood sample to be detected, of a blood sampling card is inserted into a punching positioning groove of a punching positioning block from left to right, and then the punched sample is punched. A part with a to-be-tested blood sample is positioned between the upper through hole and the lower through hole, and then the pressing button is pressed downwards by a thumb, so that the punching head moves downwards, and the lower end of the punching head downwards penetrates through the punching positioning groove, the right end of the blood sampling card, the lower through hole and the sample adding positioning tube in sequence from the upper through hole; the bottom surface, namely the cutting surface, of the punching head downwards extends out of the sample adding positioning pipe, so that a part with a blood sample to be detected is cut off through the bottom surface, namely the cutting surface, of the punching head and is driven into a container for collecting a punched sample, and the punching head can be reset through the elastic piece. According to the blood sampling card, large-aperture to-be-detected blood samples can be sampled, and the samples can be added into a container for collecting the samples in a positioning manner.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, particularly to the technical field of large-aperture punching devices, and specifically refers to a handheld pressing type large-aperture punching device. Background Art

[0002] A punching device is a common device used in laboratories, usually used in combination with a blood collection card. The test blood sample on the blood collection card is cut regularly and then put into a reagent that can extract DNA / RNA for experiments.

[0003] Existing containers for storing extraction reagents are mostly 96-well plates, centrifuge tubes, and reagent troughs. Existing punching devices are mostly small-aperture punching devices, such as 0.1mm, 0.2mm, 1mm, and 2mm. For these 4 small apertures, due to the small aperture, the punching head can adopt a pressing type, and a generally sharp punching head can be used to achieve sampling and sample addition. However, this style is not suitable for the design of a large-aperture punching head. Existing small-aperture punching devices are all pen-type punching devices, also known as "punching pens". The bottom tip uses a conical punching head, and the punching head is exposed. When in use, the user holds the punching device and presses downward forcefully. Through the pressure and the sharpness of the tip of the punching head, the test blood sample to be transferred is cut from the whole blood card and temporarily stored inside the punching head, and finally transferred to the reaction container by pressing the button. This requires a very high sharpness of the punching head. If the sharpness is not high, it is very difficult to cut the test blood sample from the whole blood card. Moreover, as the diameter of the test blood sample increases, the requirement for the sharpness of the punching head is higher, and the force used for punching and sampling is also greater. Therefore, the current pen-type punching device cannot meet the need for sampling large-aperture samples. There are also clamp-type large-aperture (above 6mm, such as 6mm, 8mm, 10mm apertures) punching devices on the market, but they cannot perform positioning and sample addition operations. If an extension catheter is added, limited by the stroke of the clamp-type large-aperture punching device, positioning and sample addition still cannot be performed.

[0004] Therefore, it is desired to provide a large-aperture punching device that can sample large-aperture test blood samples from a blood collection card and can position and add samples to a container for collecting samples. Summary of the Utility Model

[0005] In order to overcome the above-mentioned shortcomings in the prior art, an object of the utility model is to provide a handheld pressing type large-aperture punching device that can sample large-aperture test blood samples from a blood collection card and can position and add samples to a container for collecting samples, and is suitable for large-scale popularization and application.

[0006] Another object of the utility model is to provide a handheld pressing type large-aperture punching device that is ingeniously designed, has a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale popularization and application.

[0007] To achieve the above object, the present utility model provides a handheld pressing type large-aperture puncher, including a punching head, the punching head is vertically arranged and downward, the bottom surface of the punching head is a cutting surface, and the feature is that the handheld pressing type large-aperture puncher further includes a punching positioning block, a sample adding positioning tube, a grip, a pressing button and an elastic member, wherein:

[0008] The punching positioning block is horizontally arranged and along the left-right direction, a punching positioning groove is arranged on the left side surface of the punching positioning block along the left-right direction, upper perforations and lower perforations are respectively vertically arranged on the upper groove wall and the lower groove wall of the punching positioning groove, the upper perforation and the lower perforation are vertically spaced from each other and both communicate with the punching positioning groove, the sample adding positioning tube is vertically arranged and located under the punching positioning block and connected to the punching positioning block, and the lower perforation is located on the sample adding positioning tube and communicates with the sample adding positioning tube;

[0009] The grip is vertically arranged, the bottom of the grip is arranged on the punching positioning block and vertically provided with a groove, the middle part of the punching head is located in the groove, the upper end of the punching head vertically movably penetrates through the bottom of the groove and is exposed on the top of the grip, the pressing button is horizontally arranged and located above the top of the grip and arranged on the upper end of the punching head, the lower end of the punching head vertically movably penetrates through the upper perforation, the punching positioning groove, the lower perforation and the sample adding positioning tube and is located in the upper perforation, the elastic member is vertically arranged and located in the groove, the lower end of the elastic member is arranged on the punching positioning block, and the upper end of the elastic member is connected to the outer side surface of the middle part of the punching head.

[0010] Preferably, the punching head is a steel punching head.

[0011] Preferably, the bottom surface of the punching head is concave upward, so that the cutting surface is a concave cutting surface.

[0012] Preferably, the diameters of the punching head, the upper perforation, the lower perforation and the sample adding positioning tube are all 6 mm.

[0013] Preferably, the pressing button is sleeved and threadedly engaged with the upper end of the punching head.

[0014] Preferably, the handheld pressing type large-aperture puncher further includes a limiting plate, the limiting plate is horizontally arranged and located in the groove, the limiting plate is sleeved on the outer side surface of the middle part of the punching head and abuts against the upper end of the elastic member.

[0015] Preferably, the elastic member is a spring, and the spring is sleeved outside the outer side surface of the middle part of the punching head.

[0016] Preferably, the handheld pressing large-aperture punch further includes a connecting plate which is horizontally arranged along the left-right direction, is located between the bottom of the grip and the punching positioning block, and is respectively connected to the bottom of the grip and the punching positioning block. The lower end of the punching head is vertically movably inserted through the connecting plate, and the lower end of the elastic member is arranged on the connecting plate.

[0017] More preferably, the handheld pressing large-aperture punch further includes a first fastener which is vertically arranged and sequentially penetrates and is threadedly engaged with the connecting plate and the bottom of the grip from bottom to top.

[0018] More preferably, the handheld pressing large-aperture punch further includes a second fastener which is vertically arranged and sequentially penetrates and is threadedly engaged with the connecting plate and the punching positioning block from top to bottom.

[0019] The beneficial effects of the present utility model mainly lie in:

[0020] 1. When the handheld pressing large-aperture punch of the present utility model is in use, hold the grip with the hand, place the thumb on the pressing button, vertically insert the sample adding positioning tube into the container for collecting the punched sample, insert the right end of the blood collection card with the blood sample to be tested, which is horizontally arranged along the left-right direction, into the punching positioning groove of the punching positioning block from left to right. The part with the blood sample to be tested is located between the upper punching hole and the lower punching hole. Then, apply a downward force with the thumb to press down the pressing button, so that the punching head moves downward, and thus the lower end of the punching head sequentially passes through the punching positioning groove, the right end of the blood collection card, the lower punching hole and the sample adding positioning tube from the upper punching hole downward. The bottom surface of the punching head, that is, the cutting surface, extends downward out of the sample adding positioning tube. Thus, the part with the blood sample to be tested is cut off from the right end of the blood collection card and punched into the container for collecting the punched sample by the bottom surface of the punching head, that is, the cutting surface. During this process, the elastic member is compressed; then, the thumb no longer applies a downward force and releases the pressing button. The elastic member elongates and resets under the elastic action, so that the punching head moves upward, driving the pressing button to move upward until the lower end of the punching head returns to the lower punching hole. Therefore, it can perform large-aperture sampling of the blood sample to be tested on the blood collection card and can position and add the sample to the container for collecting the sample, and is suitable for large-scale popularization and application.

[0021] 2. When using the handheld pressing large-aperture punch of the present utility model, hold the handle with your hand, place your thumb on the pressing button, vertically insert the sampling positioning tube into the container for collecting the punched samples, insert the right end of the blood collection card with the blood sample to be tested, which is horizontally arranged and set in the left-right direction, from left to right into the punching positioning groove of the punching positioning block. The part with the blood sample to be tested is located between the upper punching hole and the lower punching hole. Then, apply downward force with your thumb to press down the pressing button, so that the punching head moves downward. As a result, the lower end of the punching head sequentially passes downward through the punching positioning groove, the right end of the blood collection card, the lower punching hole and the sampling positioning tube from the upper punching hole. The bottom surface of the punching head, that is, the cutting surface, extends downward out of the sampling positioning tube. Thus, the part with the blood sample to be tested is cut from the right end of the blood collection card by the bottom surface of the punching head, that is, the cutting surface, and is punched into the container for collecting the punched samples. During this process, the elastic member is compressed. Then, stop applying downward force with your thumb and release the pressing button. The elastic member elongates and resets under the elastic action, causing the punching head to move upward and driving the pressing button to move upward until the lower end of the punching head returns to the lower punching hole. Therefore, it has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale popularization and application.

[0022] These and other objects, features and advantages of the present utility model are fully reflected by the following detailed description and the accompanying drawings, and can be realized by the means, devices and their combinations specifically pointed out in the content of the utility model. Brief Description of the Drawings

[0023] Figure 1 is a three-dimensional schematic diagram of a specific embodiment of the handheld pressing large-aperture punch of the present utility model.

[0024] Figure 2 is Figure 1 the front view cross-sectional schematic diagram of the shown specific embodiment, where the punching head is in the state after sampling and adding samples.

[0025] Figure 3 is Figure 1 the three-dimensional schematic diagram when the shown specific embodiment is in use, where the punching head is in the state after sampling and adding samples.

[0026] (Symbol Explanation)

[0027] 1 Punching head; 2 Punching positioning block; 3 Sampling positioning tube; 4 Handle; 5 Pressing button; 6 Elastic member; 7 Cutting surface; 8 Punching positioning groove; 9 Upper punching hole; 10 Lower punching hole; 11 Groove; 12 Limiting plate; 13 Connecting plate; 14 First fastener; 15 Second fastener; 16 Baffle; 17 Blood collection card. Detailed Embodiment

[0028] In order to be able to more clearly understand the technical content of the present utility model, the following specific embodiments are specifically described in detail.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0030] Please refer to Figures 1 to 2 As shown, in a specific embodiment of the present utility model, the hand-held pressing large-aperture hole punch of the present utility model includes a punching head 1, a punching positioning block 2, a sampling positioning tube 3, a grip 4, a pressing button 5 and an elastic member 6, wherein:

[0031] The punching head 1 is vertically arranged and downward, the bottom surface of the punching head 1 is a cutting surface 7, the punching positioning block 2 is horizontally arranged and along the left-right direction, a punching positioning groove 8 is arranged on the left side surface of the punching positioning block 2 along the left-right direction, upper perforations 9 and lower perforations 10 are respectively vertically arranged on the upper groove wall and the lower groove wall of the punching positioning groove 8, the upper perforation 9 and the lower perforation 10 are vertically spaced from each other and both communicate with the punching positioning groove 8, the sampling positioning tube 3 is vertically arranged and is located below the punching positioning block 2 and connected to the punching positioning block 2, and the lower perforation 10 is located above the sampling positioning tube 3 and communicates with the sampling positioning tube 3;

[0032] The grip 4 is vertically arranged, the bottom of the grip 4 is arranged on the punching positioning block 2 and a groove 11 is vertically arranged, the middle part of the punching head 1 is located in the groove 11, the upper end of the punching head 1 vertically movably penetrates through the bottom of the groove 11 and is exposed on the top of the grip 4, the pressing button 5 is horizontally arranged and is located above the top of the grip 4 and is arranged on the upper end of the punching head 1, the lower end of the punching head 1 vertically movably penetrates through the upper perforation 9, the punching positioning groove 8, the lower perforation 10 and the sampling positioning tube 3 and is located in the upper perforation 9, the elastic member 6 is vertically arranged and is located in the groove 11, the lower end of the elastic member 6 is arranged on the punching positioning block 2, and the upper end of the elastic member 6 is connected to the outer side surface of the middle part of the punching head 1.

[0033] The punching head 1 can be a punching head made of any suitable material. In a specific embodiment of the present utility model, the punching head 1 is a steel punching head.

[0034] The bottom surface of the punching head 1 can have any suitable shape. Please refer to Figure 2As shown, in a specific embodiment of the present utility model, the bottom surface of the punching head 1 is concaved upward, so that the cutting surface 7 is a concave cutting surface.

[0035] Since the present utility model is a large-aperture punching tool, the diameter of the punching head 1, the diameter of the upper through-hole 9, the diameter of the lower through-hole 10, and the diameter of the sample-adding positioning tube 3 are more than 6 mm. The specific values can be determined according to needs. In a specific embodiment of the present utility model, the diameter of the punching head 1, the diameter of the upper through-hole 9, the diameter of the lower through-hole 10, and the diameter of the sample-adding positioning tube 3 are all 6 mm.

[0036] The pressing button 5 is arranged on the upper end of the punching head 1 and can adopt any suitable structure. In a specific embodiment of the present utility model, the pressing button 5 is sleeved on and threadedly engaged with the upper end of the punching head 1.

[0037] The upper end of the elastic member 6 is connected to the outer side surface of the middle part of the punching head 1 and can adopt any suitable structure. Please refer to Figure 2 As shown, in a specific embodiment of the present utility model, the handheld pressing type large-aperture punching tool further includes a limiting plate 12. The limiting plate 12 is horizontally arranged and located in the groove 11. The limiting plate 12 is sleeved on the outer side surface of the middle part of the punching head 1 and abuts against the upper end of the elastic member 6.

[0038] The elastic member 6 can be any suitable elastic member. Please refer to Figure 2 As shown, in a specific embodiment of the present utility model, the elastic member 6 is a spring. The spring is sleeved outside the outer side surface of the middle part of the punching head 1.

[0039] The bottom of the grip 4 is arranged on the punching positioning block 2 and can adopt any suitable structure. Please refer to Figures 1 to 2 As shown, in a specific embodiment of the present utility model, the handheld pressing type large-aperture punching tool further includes a connecting plate 13. The connecting plate 13 is horizontally arranged and arranged along the left-right direction. The connecting plate 13 is located between the bottom of the grip 4 and the punching positioning block 2 and is respectively connected to the bottom of the grip 4 and the punching positioning block 2. The lower end of the punching head 1 is also vertically movably penetrated through the connecting plate 13. The lower end of the elastic member 6 is arranged on the connecting plate 13. In this case, the lower end of the punching head 1 can also be located in the connecting plate 13 instead of in the lower through-hole 10.

[0040] The connecting plate 13 is connected to the bottom of the grip 4 and can adopt any suitable structure. Please refer to Figure 2As shown, in a specific embodiment of the present utility model, the handheld pressing large-aperture punch further includes a first fastener 14. The first fastener 14 is vertically arranged and sequentially penetrates and is threadedly engaged with the connecting plate 13 and the bottom of the handle 4 from bottom to top.

[0041] The first fastener 14 can be any suitable fastener. In a specific embodiment of the present utility model, the first fastener 14 is a screw.

[0042] The connecting plate 13 connects the punching positioning block 2 and can adopt any suitable structure. Please refer to Figure 1 As shown, in a specific embodiment of the present utility model, the handheld pressing large-aperture punch further includes a second fastener 15 (which can be further referred to in Figure 3 shown). The second fastener 15 is vertically arranged and sequentially penetrates and is threadedly engaged with the connecting plate 13 and the punching positioning block 2 from top to bottom.

[0043] The second fastener 15 can be any suitable fastener. In a specific embodiment of the present utility model, the second fastener 15 is a screw.

[0044] The handheld pressing large-aperture punch can further include any other suitable components. Please refer to Figures 1 to 2 As shown, in a specific embodiment of the present utility model, the handheld pressing large-aperture punch further includes a baffle 16. The baffle 16 is horizontally arranged and disposed along the left-right direction. The baffle 16 is located on the right side of the top of the handle 4 and connects to the top of the handle 4. With the above arrangement, through the baffle 16, when holding the handle 4 of the present utility model by hand during use, it can prevent the handle 4 from falling downward.

[0045] During use, that is, when punching and adding samples, please refer to Figure 3As shown in the figure, hold the grip 4 of the present utility model by hand, place the thumb on the pressing button 5, vertically insert the sample adding positioning tube 3 into the container for collecting the punched samples, insert the right end of the blood collection card 17 which is horizontally arranged and arranged in the left-right direction and has the blood sample to be tested into the punching positioning groove 8 of the punching positioning block 2 from left to right. The part with the blood sample to be tested is located between the upper punching hole 9 and the lower punching hole 10. Then, apply a downward force with the thumb to press down the pressing button 5, so that the punching head 1 moves downward, so that the lower end of the punching head 1 sequentially passes through the punching positioning groove 8, the right end of the blood collection card 17, the lower punching hole 10 and the sample adding positioning tube 3 from the upper punching hole 9 downward. The bottom surface of the punching head 1, that is, the cutting surface 7, extends downward out of the sample adding positioning tube 3. Thus, the part with the blood sample to be tested is cut off from the right end of the blood collection card 17 by the bottom surface of the punching head 1, that is, the cutting surface 7, and is punched into the container for collecting the punched samples. During this process, the elastic member 6 is compressed; then, the thumb no longer applies a downward force and releases the pressing button 5. The elastic member 6 elongates and resets under the elastic action, so that the punching head 1 moves upward, driving the pressing button 5 to move upward until the lower end of the punching head 1 returns to the lower punching hole 10, and one-time punching, sampling and sample adding are completed.

[0046] Therefore, the present utility model is a hand-held pressing type large-aperture puncher with a sample adding positioning tube, which adopts a vertical pressing method. The pressing is labor-saving and the punching effect is good. The blood sample to be tested can be cut off from the blood collection card by the punching head, and the sample can be added to the container for collecting the punched samples through the sample adding positioning tube. Thus, accurate sampling and sample adding can be achieved, and the need for collecting the blood sample to be tested on the large-aperture blood collection card and accurately positioning it into the container for collecting the punched samples can be effectively solved, without increasing the manufacturing difficulty and cost, and it is easy to promote and use.

[0047] In summary, the hand-held pressing type large-aperture puncher of the present utility model can sample the large-aperture blood sample to be tested on the blood collection card and can position and add the sample to the container for collecting the samples. The design is ingenious, the structure is simple, the manufacturing is simple, the manufacturing cost is low, and it is suitable for large-scale popularization and application.

[0048] Thus, it can be seen that the purpose of the present utility model has been completely and effectively achieved. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the above principles, the implementation manners can be modified arbitrarily. Therefore, the present utility model includes all modified implementation manners based on the spirit and scope of the claims.

Claims

1. A handheld press-type large-aperture punch, comprising a punch head, the punch head is arranged vertically and downwardly, the bottom surface of the punch head is a cutting surface, characterized in that: The handheld press-type large-aperture puncher also includes a punching positioning block, a sample adding positioning tube, a grip, a press button and an elastic member, wherein: The punching positioning block is arranged horizontally and along the left-right direction, the left side of the punching positioning block is provided with a punching positioning groove along the left-right direction, the upper groove wall and the lower groove wall of the punching positioning groove are respectively vertically provided with an upper through hole and a lower through hole, the upper through hole and the lower through hole are arranged vertically and spaced from each other and are both connected to the punching positioning groove, the sample loading positioning tube is vertically arranged and located under the punching positioning block and connected to the punching positioning block, and the lower through hole is located on the sample loading positioning tube and is connected to the sample loading positioning tube; The handle is arranged vertically, the bottom of the handle is arranged on the punching positioning block and is vertically provided with a groove, the middle part of the punching head is located in the groove, the upper end of the punching head is vertically movable to penetrate the bottom of the groove and is exposed on the top of the handle, the push button is horizontally arranged and located above the top of the handle and arranged on the upper end of the punching head, the lower end of the punching head is vertically movable to penetrate the upper hole, the punching positioning groove, the lower hole and the sample loading positioning tube and is located in the upper hole, the elastic member is vertically arranged and located in the groove, the lower end of the elastic member is arranged on the punching positioning block, and the upper end of the elastic member is connected to the outer side surface of the middle part of the punching head.

2. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The punching head is a steel punching head.

3. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The bottom surface of the punching head is upwardly concave, so that the cutting surface is a concave cutting surface.

4. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The diameters of the punching head, the upper through hole, the lower through hole and the sample adding positioning tube are all 6 mm.

5. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The pressing button is sleeved and threadedly engaged with the upper end of the punching head.

6. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The handheld press-type large-aperture hole punch also includes a limit plate, which is horizontally arranged and located in the groove. The limit plate is sleeved on the outer surface of the middle part of the punch head and abuts against the upper end of the elastic member.

7. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The elastic member is a spring, and the spring is sleeved outside the outer side surface of the middle part of the punching head.

8. The handheld press-type large-aperture hole puncher according to claim 1, characterized in that: The handheld press-type large-aperture hole puncher also includes a connecting plate, which is horizontally arranged and arranged along the left and right directions. The connecting plate is located between the bottom of the handle and the punching positioning block and is respectively connected to the bottom of the handle and the punching positioning block. The lower end of the punching head can also be vertically moved through the connecting plate, and the lower end of the elastic member is arranged on the connecting plate.

9. The handheld press-type large-aperture hole puncher according to claim 8, characterized in that: The handheld push-type large-aperture hole punch also includes a first fastener, which is vertically arranged and penetrates sequentially from bottom to top and is threadedly engaged with the connecting plate and the bottom of the handle.

10. The handheld press-type large-aperture hole puncher according to claim 8, characterized in that: The handheld press-type large-aperture hole punch also includes a second fastener, which is vertically arranged and penetrates through the connecting plate and the punching positioning block in sequence from top to bottom and is threadedly engaged with the connecting plate and the punching positioning block.

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