Tweezers for embedding small intestine paraffin of mouse

Abstract

The tweezers comprise a left tweezer handle and a right tweezer handle, a tweezer head is arranged at the lower end of the tweezer handle on each side, a clamping head is arranged on the inner side of each tweezer head, the upper ends of the left tweezer handle and the right tweezer handle are connected through an arc-shaped clamp, matching seats are correspondingly arranged in the middles of the two tweezer handles, and locking sliding rings are arranged between the matching seats and the arc-shaped clamp. The locking slip ring sleeves the outer sides of the two tweezers handles, a guide surface is arranged on one side, facing the locking slip ring, of the matching seat, and a limiting step is arranged on one side, far away from the locking slip ring, of the matching seat; the clamping heads are arranged along the length direction of the tweezers heads, the upper edges of the clamping heads are fixed on the tweezers heads, and the lower edges are suspended. The mouse small intestine sample clamping device is simple in structure and reasonable in design, samples are clamped through the clamping heads arranged on the forceps heads for embedding treatment, multiple mouse small intestine samples can be clamped at the same time at a time, operation is easy, efficiency is high, after the samples are clamped, the locking sliding ring can be clamped with the matching base by pushing the locking sliding ring downwards, then the two forceps handles are fixed, and the operation difficulty is low.

Description

Technical Field

[0001] The invention belongs to the technical field of clamping tools, and in particular relates to a pair of tweezers used for paraffin embedding of mouse small intestine. Background Art

[0002] Tweezers are a commonly used auxiliary tool. They are widely used in medicine, cosmetology, electronics and other industries because they can accurately and conveniently clamp objects. During the paraffin embedding process of the mouse small intestine, it is sometimes necessary to embed the small intestine perpendicular to the embedding box so that cross-sectional slices can be obtained later. However, since the small intestine is difficult to stand upright in liquid paraffin, it is necessary to use tweezers to clamp the small intestine segment and wait for the paraffin near the bottom to cool and stick to it. However, since this process is very short, it is difficult for ordinary tweezers to simultaneously clamp a second piece of small intestinal tissue and embed it in the same wax block. Moreover, the common tweezers in the prior art are easily broken or damaged by improper operation, which affects the experimental results and even causes the failure of the experiment. Therefore, it is necessary to optimize and improve the tweezers structure in the prior art. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a pair of forceps for paraffin embedding of mouse small intestine.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows: A pair of tweezers for paraffin embedding of mouse small intestine comprises left and right tweezer handles, the lower end of each tweezer handle is provided with a tweezer head, the inner side of each tweezer head is provided with a clamping head, the upper ends of the left and right tweezer handles are connected by an arc clamp, and a matching seat is correspondingly provided in the middle of the two tweezer handles, a locking slip ring is provided between the matching seat and the arc clamp, the locking slip ring is sleeved on the outer sides of the two tweezer handles, a guiding surface is provided on the side of the matching seat facing the locking slip ring, and a limiting step is provided on the side away from the locking slip ring; the clamping head is arranged along the length direction of the tweezer head, and the upper edge of the clamping head is fixed to the tweezer head, and the lower edge is suspended in the air.

[0005] Furthermore, the width of the arc-shaped clamp is greater than the width of the tweezers handle.

[0006] Furthermore, the outer wall of the arc-shaped clamp is provided with anti-slip textures.

[0007] Furthermore, the length of the tweezers head is 1-5 cm.

[0008] Furthermore, the tweezers head is a rectangular parallelepiped.

[0009] Furthermore, the clamping head is arc-shaped.

[0010] Furthermore, the angle between the tweezers head and the tweezers handle is 120-150 degrees.

[0011] Furthermore, each of the clamping heads is provided with a plurality of clamping grooves, and the clamping grooves of the clamping heads on the left and right tweezer handles are arranged alternately.

[0012] Furthermore, the tweezers head, the tweezers handle and the arc-shaped clamp are an integrally formed structure.

[0013] Compared with the prior art, the present invention has the following advantages: The invention has a simple structure and a reasonable design. The sample is clamped by a clamping head arranged on the tweezer head for embedding treatment. A plurality of mouse small intestine samples can be clamped at one time. The operation is simple and the efficiency is high. Moreover, after the sample is clamped, the locking slip ring can be pushed down to engage with the matching seat, thereby fixing the two tweezer handles, and the tweezer head is always kept in the state of clamping the sample. The operation difficulty is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings: Figure 1 A schematic diagram of the structure created by the present invention; Figure 2 A schematic diagram of the locking slip ring and the mating seat part is created for the present invention; Figure 3 This is a schematic diagram of the locking slip ring and the matching seat in the invention; Figure 4 A schematic diagram of the clamping head portion of the present invention; Figure 5 This is a schematic diagram of an embodiment of the present invention without the tweezers head; Figure 6 It is a schematic diagram of a clamping head provided with a plurality of clamping grooves in the invention; Figure 7 for Figure 6 Schematic diagram of the structure of the clamping head part.

[0015] Description of reference numerals: 1-tweezers handle; 2-tweezers head; 3-clamping head; 4-arc clamp; 5-matching seat; 6-locking slip ring; 7-guide surface; 8-limiting step; 9-anti-slip texture; 10-connecting column; 11-T-slot; 12-clamping groove. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] A pair of forceps for paraffin embedding of mouse small intestine, such as Figures 1 to 5 As shown, it includes left and right side tweezers handles 1, the lower end of each side of the tweezers handle is provided with a tweezer head 2, the inner side of each tweezer head is provided with a clamping head 3, the upper ends of the left and right tweezers handles are connected by an arc clamp 4, and a matching seat 5 is correspondingly provided in the middle of the two tweezers handles, a locking slip ring 6 is provided between the matching seat and the arc clamp, and the locking slip ring is sleeved on the outer sides of the two tweezers handles, the matching seat is provided with a guide surface 7 on the side facing the locking slip ring, and is provided with a limiting step 8 on the side away from the locking slip ring; the clamping head is arranged along the length direction of the tweezers head, and the upper edge of the clamping head is fixed to the tweezers head, and the lower edge is suspended.

[0021] In an optional embodiment, the upper edge of the clamping head is hinged to the forceps head through a hinge, and the lower limit of the force applied to the hinge rotation is greater than the force applied when the mouse small intestine sample is clamped off. Since the mouse small intestine sample is very light, such a structural design can ensure that the clamping head clamps the sample. At the same time, the clamping force of the clamping head is small and will not cause damage to the mouse small intestine sample. That is, when the clamping force on the sample is large, the lower edge of the clamping head is allowed to flip toward the outer wall of the forceps head to protect the sample. In addition, in another optional embodiment, the clamping head is also made of an elastic thin steel sheet. When the forceps head (the clamping head) is used to clamp the sample, the elastic thin steel sheet is allowed to produce a certain deformation to avoid damage to the sample when the clamping force is too large.

[0022] Typically, the width of the arc-shaped clamp is greater than the width of the tweezers handle. The outer wall of the arc-shaped clamp is provided with anti-slip lines 9. The length of the tweezers head is 1-5 cm. As an example, the tweezers head is a rectangular parallelepiped. The clamping head is arc-shaped. For ease of operation, typically, the angle between the tweezers head and the tweezers handle is 120-150 degrees. In order to facilitate clamping of samples, each of the clamping heads is provided with a plurality of clamping grooves, and the clamping grooves of the clamping heads on the left and right tweezers handles are arranged alternately.

[0023] In an optional embodiment, the tweezers head, the tweezers handle and the arc-shaped clamp are an integrally formed structure. In another optional embodiment, the tweezers head can be detachably mounted on the tweezers handle, that is, in this solution, the arc-shaped clamp and the two tweezers handles are an integrally formed structure, and the tweezers head can be detachably mounted on the ends of the tweezers handles. The specific structure can be: Figure 4 The figure is a schematic diagram after the tweezers head is removed, a horizontal connecting column 10 is provided at the lower end of the tweezers handle, and an insertion hole matching the connecting column is provided at one end of the tweezers head facing the tweezers handle.

[0024] In a further improved scheme, a magnetic part is provided in the insertion hole. After the connecting column is inserted into the insertion hole, the connecting column is subjected to magnetic adsorption to ensure the stable combination of the tweezers head and the tweezers handle. It should be pointed out that since the sample weight in the mouse small intestine embedding experiment is very light, the force on the tweezers head is relatively small. Therefore, normal usage requirements can be guaranteed by magnetic adsorption.

[0025] In an optional embodiment, the clamping head can be detachably installed on the tweezers head, and the specific structure can be: a T-shaped slot 11 is horizontally provided on the inner wall of the tweezers head, and the two sides of the T-shaped slot are notched. A T-shaped folded edge matching the T-shaped slot is provided on the upper edge of the clamping head. When installing the clamping head, it is only necessary to insert the T-shaped folded edge of the clamping head from one side of the T-shaped slot.

[0026] In an optional embodiment, if Figure 6 and Figure 7As shown, each of the clamping heads is provided with a plurality of vertical clamping grooves 12 at intervals, and the clamping grooves on the clamping heads of the two tweezers are arranged alternately. After the sample is placed in the clamping groove and clamped by the two tweezers, one side of the sample is in the arc-shaped clamping groove of one of the clamping heads, and the other side is against the surface of the other clamping head (the position where the clamping groove is not provided). Such a structural design can maximize the guarantee that the sample is firmly clamped and fixed while avoiding damage to the sample. At the same time, the process of withdrawing the tweezers will not affect the sample standing in the wax.

[0027] The invention has a simple structure and a reasonable design. The sample is clamped by a clamping head arranged on the tweezer head for embedding treatment. A plurality of mouse small intestine samples can be clamped at one time. The operation is simple and the efficiency is high. Moreover, after the sample is clamped, the locking slip ring can be pushed down to engage with the matching seat, thereby fixing the two tweezer handles, and the tweezer head is always kept in the state of clamping the sample. The operation difficulty is low.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pair of forceps for paraffin embedding of mouse small intestine, characterized in that: It comprises left and right tweezer handles, each of which has a tweezer head at the lower end, a clamping head on the inner side of each tweezer head, the upper ends of the left and right tweezer handles are connected by an arc-shaped clamp, and a matching seat is correspondingly provided in the middle of the two tweezer handles, a locking slip ring is provided between the matching seat and the arc-shaped clamp, and the locking slip ring is sleeved on the outer sides of the two tweezer handles, the matching seat is provided with a guide surface on the side facing the locking slip ring, and a limiting step is provided on the side away from the locking slip ring; the clamping head is arranged along the length direction of the tweezer head, and the upper edge of the clamping head is fixed to the tweezer head, and the lower edge is suspended in the air.

2. A pair of forceps for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The width of the arc-shaped clamp is greater than the width of the tweezers handle.

3. The tweezers for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The outer wall of the arc-shaped clip is provided with anti-slip patterns.

4. The tweezers for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The length of the tweezers head is 1-5 cm.

5. The tweezers for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The tweezers head is a rectangular parallelepiped.

6. The tweezers for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The clamping head is arc-shaped.

7. The forceps for paraffin embedding of mouse small intestine according to claim 1, characterized in that: The angle between the tweezer head and the tweezer handle is 120-150 degrees.

8. The forceps for paraffin embedding of mouse small intestine according to claim 1, characterized in that: Each of the clamping heads is provided with a plurality of clamping grooves, and the clamping grooves of the clamping heads on the left and right tweezer handles are arranged alternately.

9. A pair of forceps for paraffin embedding of mouse small intestine according to any one of claims 1 to 8, characterized in that: The tweezers head, tweezers handle and arc-shaped clamp are an integrated structure.

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