Dried blood spot sampling forceps

Abstract

The utility model provides a pair of dried blood spot sampling forceps, the pair of dried blood spot sampling forceps comprises a forceps main body and an extrusion exhaust assembly, the forceps main body is provided with a punching head, a cutting hole and a catheter, the punching head and the cutting hole are matched on a filter paper dried blood spot to take down a dried blood spot sample, and the dried blood spot sample falls into the catheter; a vent hole is formed in the lower end of the punching head; and the extrusion exhaust assembly is connected with the forceps main body, is communicated with the vent hole through a pipeline, and is suitable for exhausting gas through the vent hole after being extruded so as to blow out a dried blood spot sample in the catheter. When the dried blood spot sampling forceps provided by the utility model are used for sampling, a dried blood spot sample is taken down from a filter paper dried blood spot through the matching of the punching head and the cutting hole, the dried blood spot sample falls into the guide pipe, and air is blown into the air guide pipe through the vent hole in the punching head by pressing and extruding the exhaust component, so that the dried blood spot sample is blown out; and a dried blood spot sample is effectively prevented from being clamped in the catheter.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and particularly relates to a dry blood spot sampling forceps. Background Art

[0002] Blood spot collection is an important link in the neonatal genetic metabolic disease screening (referred to as new screening for short), and the quality of blood spots directly affects the laboratory test results. The laboratory technicians in the new screening center receive the filter paper dry blood spots sent by each blood collection unit, punch out several dry blood spot samples on the filter paper dry blood spots, and put the taken dry blood spot samples into sample tubes one by one for the detection of relevant screening items. Since the technicians punch holes many times every day, there is a possibility that the dry blood spots will fall to the ground when manually holding the dry blood spots for punching, which is likely to cause blood sample contamination. Therefore, some sampling forceps are equipped with a catheter, and the dry blood spot samples fall into the sample tubes through the catheter.

[0003] However, after using for a period of time, due to reasons such as the inner wall of the catheter adhering to the fluff or static electricity generated during punching, the dry blood spot samples are likely to get stuck in the catheter, affecting the use. Summary of the Utility Model

[0004] The utility model provides a dry blood spot sampling forceps, aiming to solve the technical problem that the dry blood spot samples of the sampling forceps with a catheter in the prior art are likely to get stuck in the catheter.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a dry blood spot sampling forceps, including:

[0006] A forceps body main body, provided with a punching head, a cutting hole and a catheter. The punching head cooperates with the cutting hole to take a dry blood spot sample on the filter paper dry blood spot and fall into the catheter; a ventilation hole is provided at the lower end of the punching head; and

[0007] An extrusion exhaust assembly, connected to the forceps body main body. The extrusion exhaust assembly is communicated with the ventilation hole through a pipeline and is adapted to discharge gas through the ventilation hole after being extruded to blow out the dry blood spot samples in the catheter.

[0008] In a possible implementation manner of the dry blood spot sampling forceps provided by the utility model, the forceps body main body includes:

[0009] A first forceps body, including a first forceps arm and a first forceps head. The first forceps head is connected to the first forceps arm, and the punching head is arranged on the lower side of the first forceps head; and

[0010] The second clamping body includes a second clamping arm and a second clamping head. The second clamping arm is rotatably connected to the first clamping arm. The second clamping head is disposed on the lower side of the first clamping head and is connected to the second clamping arm. A cutting hole is formed in the second clamping head. The catheter is disposed on the lower side of the second clamping head, aligned with the cutting hole and connected to the second clamping head.

[0011] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the catheter is a transparent plastic tube.

[0012] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the upper end diameter of the catheter is larger than the lower end diameter.

[0013] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the upper end of the catheter is snap-connected to the cutting hole.

[0014] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the extrusion and exhaust assembly is disposed between the first clamping arm and the second clamping arm and is connected to the first clamping arm or the second clamping arm.

[0015] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the extrusion and exhaust assembly includes:

[0016] A cylinder body, one end of which is connected to the first clamping arm or the second clamping arm;

[0017] A piston, disposed in the cylinder body and slidably cooperating with the cylinder body;

[0018] A push rod, one end of which is connected to the piston and the other end of which protrudes from the cylinder body; and

[0019] A spring, sleeved on the push rod, one end of which is connected to the cylinder body and the other end of which is connected to the push rod.

[0020] In a possible implementation manner of the dried blood spot sampling forceps provided by the present utility model, the extrusion and exhaust assembly further includes a roller, which is disposed at the end of the push rod facing away from the piston and is rotatably connected to the push rod.

[0021] The beneficial effects of the dried blood spot sampling forceps provided by the present utility model are as follows: Compared with the prior art, when sampling with the dried blood spot sampling forceps provided by the present utility model, a dried blood spot sample is taken from the filter paper dried blood spot by the cooperation of the punching head and the cutting hole. The dried blood spot sample falls into the catheter, and by pressing the extrusion and exhaust assembly, gas is blown into the catheter through the ventilation holes on the punching head, thereby blowing out the dried blood spot sample, effectively avoiding the dried blood spot sample from getting stuck in the catheter. Description of the Drawings

[0022] Figure 1A schematic diagram of the three-dimensional structure of the dried blood smear sampling forceps provided in an embodiment of the utility model;

[0023] Figure 2 A schematic cross-sectional view of the dry blood smear sampling forceps provided in an embodiment of the utility model;

[0024] Description of reference numerals:

[0025] 11. first clamp arm; 12. first clamp head; 13. punching head; 14. vent hole;

[0026] 21. second clamp arm; 22. second clamp head; 23. cutting hole; 24. catheter;

[0027] 31. Cylinder body; 32. Piston; 33. Push rod; 34. Spring; 35. Roller; 36. Pipeline. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it will not be necessary to discuss it further in subsequent drawings.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.

[0034] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning, and thus cannot be construed as limiting the protection scope of the present application.

[0035] Please refer to Figures 1 to 2, the dry blood spot sampling forceps provided by the present utility model will be described below. The dry blood spot sampling forceps include a forceps body main body and an extrusion exhaust assembly. The forceps body main body is provided with a punching head 13, a cutting hole 23 and a catheter 24. The punching head 13 and the cutting hole 23 cooperate to take a dry blood spot sample from the filter paper dry blood spot and fall into the catheter 24. A ventilation hole 14 is provided at the lower end of the punching head 13. The extrusion exhaust assembly is connected to the forceps body main body, and the extrusion exhaust assembly is communicated with the ventilation hole 14 through a pipeline 36, and is adapted to discharge gas through the ventilation hole 14 after being extruded, and blow out the dry blood spot sample in the catheter 24.

[0036] The beneficial effects of the dry blood spot sampling forceps provided by the present utility model are as follows: Compared with the prior art, when sampling with the dry blood spot sampling forceps provided by the present utility model, the punching head 13 and the cutting hole 23 cooperate to take a dry blood spot sample from the filter paper dry blood spot. The dry blood spot sample falls into the catheter 24, and by pressing the extrusion exhaust assembly, gas is blown into the catheter through the ventilation hole 14 on the punching head 13, and then the dry blood spot sample is blown out, effectively avoiding the dry blood spot sample from getting stuck in the catheter 24.

[0037] As Figure 1 and Figure 2 shown, in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present utility model, the forceps body main body includes a first forceps body and a second forceps body. The first forceps body includes a first forceps arm 11 and a first forceps head 12. The first forceps head 12 is connected to the first forceps arm 11, and the punching head 13 is provided on the lower side of the first forceps head 12. The second forceps body includes a second forceps arm 21 and a second forceps head 22. The second forceps arm 21 is rotatably connected to the first forceps arm 11. The second forceps head 22 is provided on the lower side of the first forceps head 12 and is connected to the second forceps arm 21. The cutting hole 23 is opened on the second forceps head 22, and the catheter 24 is provided on the lower side of the second forceps head 22, aligned with the cutting hole 23 and connected to the second forceps head 22.

[0038] Specifically, the second forceps arm 21 is hinged to the first forceps arm 11. Place the filter paper dry blood spot between the first forceps head 12 and the second forceps head 22, align the dry blood spot sample with the cutting hole 23, and squeeze the second forceps arm 21 and the first forceps arm 11 inward, then the punching head 13 on the first forceps head 12 can be inserted into the cutting hole 23 on the second forceps head 22 to take a dry blood spot sample from the filter paper dry blood spot.

[0039] As Figure 1 and Figure 2 shown, in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present utility model, the catheter 24 is a transparent plastic tube, which has a relatively low cost and is convenient for viewing the state of the dry blood spot sample in the catheter 24.

[0040] AsFigure 1 and Figure 2 As shown in Figure 2 , in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present invention, the upper end diameter of the catheter 24 is larger than the lower end diameter, which is convenient for the dry blood spot sample to fall into the catheter 24, and is also convenient for the lower end of the catheter 24 to be aligned with the sample vial, so that the dry blood spot sample falls into the sample vial.

[0041] As Figure 1 and Figure 2 As shown in Figure 2 , in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present invention, the upper end of the catheter 24 is snap-fitted with the cutting hole 23.

[0042] Specifically, the upper end of the catheter 24 is in interference fit with the cutting hole 23, thereby realizing the snap connection between the catheter 24 and the cutting hole 23, which is convenient for disassembly and replacement.

[0043] As Figure 1 and Figure 2 As shown in Figure 2 , in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present invention, the extrusion and exhaust assembly is arranged between the first forceps arm 11 and the second forceps arm 21 and is connected to the first forceps arm 11 or the second forceps arm 21.

[0044] Specifically, as Figure 1 and Figure 2 As shown in Figure 2 , in a specific implementation manner of the dry blood spot sampling forceps provided by the embodiment of the present invention, the extrusion and exhaust assembly includes a cylinder body 31, a piston 32, a push rod 33 and a spring 34. One end of the cylinder body 31 is connected to the first forceps arm 11 or the second forceps arm 21; the piston 32 is arranged in the cylinder body 31 and is slidably matched with the cylinder body 31; one end of the push rod 33 is connected to the piston 32, and the other end protrudes from the cylinder body 31; the spring 34 is sleeved on the push rod 33, one end of which is connected to the cylinder body 31 and the other end is connected to the push rod 33.

[0045] Preferably, the cylinder body 31 is connected to the second forceps arm 21, and the push rod 33 is adapted to abut against the first forceps arm 11; when the first forceps arm 11 and the second forceps arm 21 are pressed inward, the punching head 13 on the first forceps head 12 is inserted into the cutting hole 23 on the second forceps head 22, a dry blood spot sample is taken from the filter paper dry blood spot, and the sample falls into the catheter 24. During this process, the push rod 33 is pressed into the interior of the cylinder body 31, and the gas in the cylinder body 31 is extruded and discharged into the catheter 24 through the pipeline and the ventilation hole 14, blowing the dry blood spot sample in the catheter 24 and blowing out the dry blood spot sample; then, the first forceps arm 11 and the second forceps arm 21 are released, and the push rod 33 is reset under the action of the spring 34. At the same time, the first forceps arm 11 and the second forceps arm 21 are pushed back to facilitate re-sampling.

[0046] AsFigure 1 and Figure 2 As shown in Figure 2 , in a specific implementation manner of the dried blood spot sampling forceps provided in the embodiment of the present utility model, the extrusion exhaust assembly further includes a roller 35, and the roller 35 is arranged at one end of the ejector rod 33 facing away from the piston 32 and is rotatably connected to the ejector rod 33.

[0047] It should be noted that the roller 35 is adapted to abut against the first forceps arm 11 to convert sliding friction into rolling friction, so as to reduce the wear of the first forceps arm 11 when pressing the extrusion exhaust assembly.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A dry blood smear sampling forceps, characterized in that: include: The clamp body is provided with a punching head, a cutting hole and a catheter. The punching head cooperates with the cutting hole to take the dried blood sample from the filter paper dried blood smear and drop it into the catheter. The lower end of the punching head is provided with a vent hole; and The extrusion exhaust component is connected to the clamp body, and the extrusion exhaust component is communicated with the vent through a pipeline, and is suitable for exhausting gas through the vent after being squeezed, so as to blow out the dry blood sample in the catheter.

2. The dried blood smear sampling forceps according to claim 1, characterized in that: The clamp body comprises: A first clamp body, comprising a first clamp arm and a first clamp head, wherein the first clamp head is connected to the first clamp arm, and the punching head is arranged at the lower side of the first clamp head; and The second pliers body comprises a second pliers arm and a second pliers head, wherein the second pliers arm is rotatably connected to the first pliers arm, and the second pliers head is arranged on the lower side of the first pliers head and connected to the second pliers arm; the second pliers head is provided with the cutting hole, and the guide tube is arranged on the lower side of the second pliers head, aligned with the cutting hole and connected to the second pliers head.

3. The dried blood smear sampling forceps according to claim 1, characterized in that: The catheter is a transparent plastic tube.

4. The dried blood smear sampling forceps according to claim 3, characterized in that: The diameter of the upper end of the conduit is greater than the diameter of the lower end.

5. The dried blood smear sampling forceps according to claim 3, characterized in that: The upper end of the conduit is snap-connected with the cutting hole.

6. The dried blood smear sampling forceps according to claim 2, characterized in that: The extrusion exhaust assembly is arranged between the first clamp arm and the second clamp arm, and is connected to the first clamp arm or the second clamp arm.

7. The dried blood smear sampling forceps according to claim 6, characterized in that: The extrusion exhaust assembly comprises: A cylinder body, one end of which is connected to the first clamp arm or the second clamp arm; A piston is disposed in the cylinder body and slidably cooperates with the cylinder body; A push rod, one end of which is connected to the piston and the other end of which protrudes out of the cylinder body; and The spring is sleeved on the push rod, one end of which is connected to the cylinder body, and the other end of which is connected to the push rod.

8. The dried blood smear sampling forceps according to claim 7, characterized in that: The extrusion exhaust assembly also includes a roller, which is arranged at one end of the push rod facing away from the piston and is rotatably connected to the push rod.

Images