Sample sampling device

Abstract

The utility model relates to the technical field of pathology department, in particular to a sample sampling device, which comprises a grab handle, the end part of the grab handle is fixedly connected with a first tweezers body and a second tweezers body, and the end parts of the first tweezers body and the second tweezers body, which are far away from the grab handle, are fixedly provided with tweezers heads for clamping samples. An anti-deviation mechanism used for preventing the tweezers heads from inclining is fixedly installed between the first tweezers body and the second tweezers body, and the sample sampling tweezers can prevent the tweezers heads from inclining and misplacing in the clamping process and are worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of pathology, in particular to a sample sampling device. Background Art

[0002] Common pathological sample collection is to collect tissue samples. Medical staff need to use tweezers to pick up the samples and put them into a container. The tweezers have slightly sharp tips, and users cannot always maintain precision when applying force. After long-term use, the tweezers may shift when pinching each other, causing the tweezers to cross and affect the effect of the tweezers in grabbing sample tissue. Utility Model Content

[0003] The utility model aims to provide a sample sampling device to solve the defect in the prior art that the tweezer heads are easily deviated when kneading, resulting in cross-phase misalignment and affecting the clamping effect.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sample sampling device is designed, comprising a handle, wherein a first tweezer body and a second tweezer body are fixedly connected to the end of the handle, and ends of the first tweezer body and the second tweezer body away from the handle are fixedly installed with tweezer heads for clamping samples, and an anti-deflection mechanism for preventing the tweezer heads from tilting is fixedly installed between the first tweezer body and the second tweezer body.

[0006] Preferably, the anti-deflection mechanism includes a protrusion, the end of the protrusion is fixedly connected to the inner surface of the first tweezers body, elastic pads are fixedly installed on both side surfaces of the protrusion, and limiting blocks are fixedly installed on the inner surface of the second tweezers body, and a pair of limiting blocks are provided and located on both sides of the protrusion.

[0007] Preferably, a line connecting the centers of a pair of the limiting blocks coincides with a plane on which the length directions of the first tweezer body and the second tweezer body are located.

[0008] Preferably, the end of the limiting block close to the protrusion is provided with a rounded corner, the cross-section of the elastic pad is an arc shape, and the elastic pad can contact the rounded end surface of the limiting block.

[0009] Preferably, a push rod is threadedly connected inside the second tweezers body, the push rod is located between the limit blocks, and a buffer pad is fixedly installed at the end of the push rod close to the protrusion, and the buffer pad can contact the end of the protrusion.

[0010] Preferably, surfaces of the first tweezers body and the second tweezers body that are away from each other are provided with first anti-slip patterns.

[0011] Preferably, second anti-slip grooves are provided on surfaces of the tweezer heads that are close to each other.

[0012] The utility model provides a sample sampling device, which has the beneficial effect that when the sample sampling device is in use, when the first tweezers body and the second tweezers body are pinched, the protrusion cannot be skewed due to the restriction of the limit block, so that the tweezers heads can be accurately close to each other to clamp the sample tissue, and the clamping effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the top view of a sample sampling device proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of a transverse cross-sectional structure of a sample sampling device proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of a sample sampling device proposed by the utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0017] Figure 5 A sample sampling device proposed in the utility model Figure 3 A schematic diagram of the structure of the middle forceps bodies being in a state of being separated from each other;

[0018] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at BB in the middle.

[0019] In the figure: 1. handle; 2. first tweezer body; 3. second tweezer body; 4. tweezer head; 5. protrusion; 6. elastic pad; 7. limit block; 8. buffer pad; 9. support rod; 10. first anti-slip pattern; 11. second anti-slip pattern. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1

[0022] Reference Figure 1-6A sample sampling device comprises a handle 1, a first forceps body 2 and a second forceps body 3 are fixedly connected at the end of the handle 1, and a first anti-skid pattern 10 is provided on the surfaces of the first forceps body 2 and the second forceps body 3 that are away from each other. The first anti-skid pattern 10 is arranged at the position where the user holds the forceps body, and plays an anti-skid role. The ends of the first forceps body 2 and the second forceps body 3 that are away from the handle 1 are fixedly installed with forceps heads 4 for clamping samples. When the user pinches the first forceps body 2 and the second forceps body 3 with the thumb and index finger, the distance between the forceps heads 4 at both ends becomes smaller, so that the sample tissue can be clamped. The surfaces of the forceps heads 4 that are close to each other are provided with second anti-skid patterns 10. The second anti-skid patterns 10 play an anti-skid role, which can make the contact between the forceps heads 4 and the sample tissue closer, and prevent the sample tissue from slipping off the forceps heads 4.

[0023] An anti-deflection mechanism for preventing the tweezer head 4 from tilting is fixedly installed between the first tweezer body 2 and the second tweezer body 3, and the anti-deflection mechanism includes a protrusion 5, the end of the protrusion 5 is fixedly connected to the inner surface of the first tweezer body 2, and elastic pads 6 are fixedly installed on the two side surfaces of the protrusion 5, and a limiting block 7 is fixedly installed on the inner surface of the second tweezer body 3. A pair of limiting blocks 7 are provided and are located on both sides of the protrusion 5. The connecting line between the centers of the pair of limiting blocks 7 coincides with the plane where the length directions of the first tweezer body 2 and the second tweezer body 3 are located. The end of the limiting block 7 near the protrusion 5 is provided with a rounded corner, and the cross-section of the elastic pad 6 is arc-shaped. The elastic pad 6 can contact the rounded end surface of the limiting block 7. As shown in the accompanying drawing, the distance between the rounded ends of the limiting block 7 is smaller than the distance between the two elastic pads 6, and the elastic pad 6 will encounter resistance when passing between the limiting blocks 7. When the user pinches the first tweezers body 2 and the second tweezers body 3 to move closer to each other, the protrusion 5 and the limiting block 7 will move closer to each other. Under the restriction of the limiting block 7, the protrusion 5 can only extend between the limiting blocks 7. When the protrusion 5 is located between the limiting blocks 7, the tweezers heads 4 at both ends are accurately pinched and moved closer to each other, and there is no deviation between the tweezers heads 4 at both ends. Under the action of the elastic pad 6, the gap between the protrusion 5 and the limiting block 7 can be filled, which can further improve the accuracy of the matching of the tweezers heads 4 at both ends. The elastic pad 6 will encounter resistance when passing through the limit block 7, and the magnitude of this resistance is smaller than the magnitude of the resilience of the first tweezer body 2 and the second tweezer body 3 themselves. That is to say, even if the elastic pad 6 encounters the resistance of the limit block 7, it will not affect the first tweezer body 2 and the second tweezer body 3 from returning to the open state. When the user releases the pinching of the first tweezer body 2 and the second tweezer body 3, the resilience of the first tweezer body 2 and the second tweezer body 3 themselves causes the tweezer heads 4 at both ends to move away from each other. Under the action of this resilience force, the protrusion 5 and the elastic pad 6 are separated from the limit block 7. The protrusion 5 and the limit block 7 can limit the pinching accuracy of the tweezer head 4 without affecting the clamping function of the tweezer head 4.

[0024] Working principle: During use of the sample sampling device, the user moves the tweezers head 4 to the position of the sample tissue, pinches the first tweezers body 2 and the second tweezers body 3, so that the tweezers heads 4 are close to each other, the protrusion 5 and the limit block 7 are close to each other, and after the elastic pad 6 is in contact with the limit block 7, the protrusion 5 enters the limit block 7. At this time, the tweezers head 4 is restricted by the protrusion 5 and the limit block 7 and will not be skewed or offset. The tweezers heads 4 can accurately approach each other to clamp the sample tissue.

[0025] Example 2

[0026] In the above embodiment 1, when the first forceps body 2 and the second forceps body 3 are pinched together, the user will feel a certain resistance when the elastic pad 6 passes between the limit blocks 7. This resistance may make the user unable to control the force of clamping the sample tissue, and may over-pinch and damage the sample tissue. For this reason, this embodiment 2 is proposed. Figure 2-6 As another preferred embodiment of the utility model, on the basis of embodiment 1, a push rod 9 is further threadedly connected inside the second forceps body 3, and the push rod 9 is located between the limit blocks 7. By rotating the push rod 9, the extent to which the push rod 9 extends to the second forceps body 3 can be adjusted, so that the distance between the push rod 9 and the protrusion 5 can be adjusted, and the protrusion 5 can be blocked by the push rod 9. When the first forceps body 2 and the second forceps body 3 are pinched, after the elastic pad 6 passes through the limit block 7 and the protrusion 5 enters the limit block 7, the push rod 9 can control the depth of the protrusion 5 extending into the limit block 7, so that the protrusion 5 can be prevented from excessively extending into the limit block 7, thereby preventing the forceps head 4 from excessively clamping the sample tissue. In addition, the position of the push rod 9 can be adjusted according to the size of the clamped sample tissue, so as to control the extension range of the protrusion 5. A buffer pad 8 is fixedly installed on the end of the support rod 9 close to the protrusion 5. The buffer pad 8 can contact the end of the protrusion 5 and can play a buffering role. When the buffer pad 8 contacts the protrusion 5, the tweezers head 4 can already slightly clamp the sample tissue. If the user continues to apply force, the buffer pad 8 will be squeezed and deformed, so that the tweezers head 4 can firmly clamp the sample tissue. Since the deformation of the buffer pad 8 is small, the sample tissue will not be excessively clamped.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sample sampling device, comprising a handle (1), characterized in that: The end of the handle (1) is fixedly connected to a first tweezer body (2) and a second tweezer body (3); ends of the first tweezer body (2) and the second tweezer body (3) away from the handle (1) are fixedly mounted with tweezer heads (4) for clamping samples; an anti-deflection mechanism for preventing the tweezer heads (4) from tilting is fixedly mounted between the first tweezer body (2) and the second tweezer body (3).

2. The sample sampling device according to claim 1, characterized in that: The anti-deflection mechanism comprises a protrusion (5), the end of the protrusion (5) is fixedly connected to the inner surface of the first tweezers body (2), elastic pads (6) are fixedly installed on both side surfaces of the protrusion (5), and a limiting block (7) is fixedly installed on the inner surface of the second tweezers body (3), and a pair of the limiting blocks (7) are provided and located on both sides of the protrusion (5).

3. The sample sampling device according to claim 2, characterized in that: The line connecting the centers of the pair of limit blocks (7) coincides with the plane on which the length directions of the first tweezer body (2) and the second tweezer body (3) are located.

4. The sample sampling device according to claim 3, characterized in that: The end of the limiting block (7) close to the protrusion (5) is provided with a rounded corner, the cross section of the elastic pad (6) is in an arc shape, and the elastic pad (6) can contact the rounded end surface of the limiting block (7).

5. The sample sampling device according to claim 4, characterized in that: The second tweezers body (3) is also threadedly connected to a support rod (9), the support rod (9) is located between the limit blocks (7), and a buffer pad (8) is fixedly installed at the end of the support rod (9) close to the protrusion (5), and the buffer pad (8) can contact the end of the protrusion (5).

6. The sample sampling device according to claim 1, characterized in that: Surfaces of the first tweezers body (2) and the second tweezers body (3) that are away from each other are provided with first anti-slip grooves (10).

7. The sample sampling device according to claim 1, characterized in that: The surfaces of the tweezer heads (4) that are close to each other are provided with second anti-slip grooves (11).

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