Adjusting clamping mechanism and embedding tweezers
By designing and adjusting the clamping mechanism, and adopting a gear rack and slider groove structure, the problems of slow cooling and uneven heat distribution of the clamping head are solved, achieving rapid cooling and temperature control, and improving the effectiveness and safety of the embedding forceps.
Patent Information
- Application Number
- CN202422369089.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Existing adjustment clamping mechanisms and embedding forceps are inefficient when cooling the gripping head, resulting in uneven heat conduction, poor embedding effect, or the release of harmful gases.
An adjustable clamping mechanism was designed, including a housing assembly, a clamping assembly, a movable cavity assembly, a displacement assembly, a heating element, and a temperature controller. Through the cooperation of a gear rack structure and a slider groove, the clamping head can be rapidly cooled and its temperature controlled.
It achieves rapid cooling and uniform temperature control of the gripper head, avoiding adverse effects during the embedding process and improving embedding effect and safety.
Smart Images

Figure CN223538631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable clamping mechanism and embedding forceps. Background Technology
[0002] Embedding is an important step in pathological work. It involves placing a fixed, dehydrated, cleared, and paraffin-impregnated specimen into an embedding frame filled with molten paraffin using forceps. After the paraffin solidifies, the tissue block gains a certain hardness and toughness to facilitate sectioning. The key points of the operation are to place the tissue block flat and upright.
[0003] Paraffin embedding of dehydrated pathological specimens is a crucial step in pathological procedures. Existing adjustable clamping mechanisms and embedding forceps incorporate heating units within the forceps to prevent paraffin from solidifying and tissue from sticking. However, since the melting points of embedding paraffins produced by different manufacturers and models vary, solidification can only be prevented through temperature control. For example, the "forceps for heated embedding" disclosed in patent publication number CN220922074U uses a heating sleeve placed at the top of the forceps body to transfer heat to the clamping end, and heating is achieved through temperature regulation.
[0004] However, when adjusting the temperature, the heating unit is relatively fixed, and the heat needs to be conducted over a certain time and distance to heat or cool the clamping end. The heat transfer efficiency is not high. If the temperature is too low, the wax will solidify, causing the embedding to fail. If the temperature is too high, it may cause harmful gases to volatilize. If it is necessary to change from a high-melting-point wax to a low-melting-point wax, the clamping end of the tweezers needs to be cooled. The fixed heating unit will result in low cooling efficiency. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] In view of the problems of slow cooling and low heat conduction efficiency of the tweezers gripping head when cooling is required, as mentioned above or in the prior art, this utility model is proposed.
[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable clamping mechanism, the main unit comprising a housing assembly, a clamping assembly symmetrically disposed at one end of the housing assembly and fixedly connected to the housing assembly, and a movable cavity assembly disposed within the housing assembly;
[0008] The adjustment unit includes a displacement component disposed within the movable cavity assembly, a snap-fit component fixedly engaged with the displacement component, and a sliding aid component fixedly connected to the end of the displacement component away from the clamping assembly.
[0009] As a preferred embodiment of the adjusting clamping mechanism of this utility model, the housing assembly includes an elastic bending portion and a handle housing symmetrically arranged at both ends of the elastic bending portion and fixedly connected to the elastic bending portion.
[0010] As a preferred embodiment of the adjustable clamping mechanism of this utility model, the clamping assembly includes a clamping head disposed at the end of the handle housing away from the elastic bending portion, and a heat-conducting plate disposed on the side of the handle housing close to each other and fixedly connected to one end of the clamping head.
[0011] The handle housing is compatible with the gripper head.
[0012] As a preferred embodiment of the adjusting clamping mechanism of this utility model, the movable cavity assembly includes a movable cavity disposed within the handle housing, a sliding groove disposed at the end of the displacement assembly away from the clamping head, and a fixing slot disposed at the end of the displacement assembly near the clamping head.
[0013] As a preferred embodiment of the adjustment and clamping mechanism of this utility model, the displacement component includes a hand-rolling gear disposed in the movable cavity, a rack meshing with the hand-rolling gear, and a rotating shaft disposed at both ends of the hand-rolling gear and passing through the hand-rolling gear.
[0014] As a preferred embodiment of the adjusting clamping mechanism of this utility model, the snap-fit fixing component includes fixing bolts that pass through both sides of the handle housing.
[0015] As a preferred embodiment of the adjusting clamping mechanism of this utility model, the sliding aid component includes a sliding plate disposed at the end of the rack away from the clamping head and fixedly connected to the rack, and a slider disposed on the side of the sliding plate.
[0016] As a preferred embodiment of the adjusting clamping mechanism of this utility model, the handle housing includes an opening on a side of the handle housing that is far apart from each other, and a threaded hole that is threadedly connected to a fixing bolt.
[0017] The opening is compatible with hand-operated gears.
[0018] As a preferred embodiment of the adjustment clamping mechanism of this utility model, the hand-rolled gear includes a fixing hole that engages with the fixing bolt, and a rotating shaft through hole provided on both sides of the center of the hand-rolled gear.
[0019] The fixing bolts are compatible with the fixing holes.
[0020] The beneficial effects of the adjustable clamping mechanism of this utility model are as follows: This utility model adjusts the displacement through the adjustment unit. When it is necessary to cool down the clamping head, the hand-operated gear is rubbed and the rack drives the heating element away from the clamping head, thereby increasing the heat conduction distance and the heat dissipation range, thus enabling rapid cooling of the clamping head.
[0021] In actual use, there is still a problem with the temperature control of the gripper head not being precise enough.
[0022] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: wherein: an embedding forceps includes a heating component.
[0023] As a preferred embodiment of the embedding forceps of this utility model, the heating assembly includes a heating element fixedly connected to one end of the rack near the gripping head, a power cord disposed on the side of the elastic bending portion away from the handle housing, a temperature controller disposed on the side of the handle housing away from each other, and a temperature display screen disposed on the side of the temperature controller near the elastic bending portion.
[0024] The beneficial effects of this embedding forceps are that the heating element is heated by inserting the power cord into the power source, and the predetermined temperature can be effectively controlled by adjusting the temperature controller. The temperature change can be clearly seen on the temperature display screen. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0026] Figure 1 An exploded view of the overall structure of the clamping mechanism and embedding forceps for adjusting the gripping mechanism.
[0027] Figure 2 A schematic diagram of the overall structure of the clamping mechanism and embedding forceps for adjusting the gripping mechanism.
[0028] Figure 3 An exploded view of the overall structure for adjusting the clamping mechanism and embedding forceps at another angle.
[0029] Figure 4 An exploded view of the overall structure for adjusting the clamping mechanism and embedding forceps at another angle.
[0030] Figure 5 A schematic diagram of the gears and fixing components for adjusting the clamping mechanism and embedding forceps. Detailed Implementation
[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0034] Example 1
[0035] Reference Figures 1-3 This is the first embodiment of the present invention. This embodiment provides an adjustable clamping mechanism that can clamp tissue samples into an embedding frame through its structure and provide space for the movement of the adjustment unit.
[0036] Specifically, the main unit 100 includes a shell assembly 101, a clamping assembly 102 symmetrically arranged at one end of the shell assembly 101 and fixedly connected to the shell assembly 101, and a movable cavity assembly 103 disposed within the shell assembly 101. The shell assembly 101 mainly provides a structural basis for clamping tissue samples; the clamping assembly 102 mainly clamps tissue samples and places them into the embedding frame; the movable cavity assembly 103 mainly provides space for adjusting the mechanical movement of the unit.
[0037] Furthermore, the housing assembly 101 includes an elastic bending portion 101a and a handle housing 101b symmetrically disposed at both ends of the elastic bending portion 101a and fixedly connected to the elastic bending portion 101a.
[0038] Furthermore, the clamping assembly 102 includes a clamping head 102a disposed on one end of the handle housing 101b away from the elastic bending portion 101a, and a heat-conducting plate 102b disposed on the side of the handle housing 101b close to each other and fixedly connected to one end of the clamping head 102a.
[0039] The handle housing 101b is adapted to the gripper head 102a.
[0040] Furthermore, the movable cavity assembly 103 includes a movable cavity 103a disposed within the handle housing 101b, a slide groove 103b disposed at the end of the displacement assembly 201 away from the gripper head 102a, and a fixing slot 103c disposed at the end of the displacement assembly 201 near the gripper head 102a.
[0041] Furthermore, the handle housing 101b includes an opening 101b-1 on a side of the handle housing 101b that is far apart from each other, and a threaded hole 101b-2 that is threadedly connected to the fixing bolt 202a.
[0042] The opening 101b-1 is compatible with the hand-rolled gear 201a.
[0043] Preferably, the combination of the elastic bending part 101a and the handle housing 101b enables the clamping of tissue samples, resulting in a simple structure and convenient operation.
[0044] Preferably, the heat can be quickly dissipated through the heat conduction plate 102b and placed in the relatively enclosed cavity of the handle housing 101b to heat up.
[0045] Preferably, by fixing the slot 103c, the heating element 301a can be fixed in the slot 103c, which can make the adjusting clamping mechanism and the two gripping heads 102a of the embedding forceps heat evenly, and prevent uneven heating from having different effects on the wax body, which would have an adverse effect on the embedding.
[0046] It should be noted that the edges of the handle shell 101b are rounded, and the sides that are close to each other are made of heat-conducting material. The three sides that are gripped are also made of heat-insulating material to prevent injury to the human body due to heat conduction.
[0047] It should be noted that the movable cavity 103a is used to prevent the adjustment unit 200 from extending beyond the opening 101b-1, so that it can be used to provide power for motion adjustment.
[0048] It should be noted that the elastic bending portion 101a makes the opposite sides of the handle housing 101b parallel to each other in the initial state.
[0049] During use, the components work together to hold and place tissue samples. The handle housing 101b and the elastic bending part 101a are fixed together. When in use, pressing against the side of the handle housing 101b causes the gripping head 102a to move relative to the elastic bending part 101a, thus holding the tissue sample. Furthermore, the heat-conducting plate 102b, under the action of the adjustment unit 200, can move closer to the gripping head 102a until it abuts against the fixing slot 103c in the movable cavity 103a. The cooperation between the heat-conducting plate 102b and the fixing slot 103c ensures that the gripping head 102a is heated evenly, preventing adverse effects on embedding.
[0050] In summary, the beneficial effects of an adjustable clamping mechanism and embedding forceps are that by pressing the side of the handle housing 101b, the clamping head 102a clamps the tissue sample, and the movement of the adjustment unit 200 causes the heat-conducting plate 102b to abut against the fixing slot 103c, so that the clamping head 102a is heated evenly and prevents adverse effects on embedding.
[0051] Example 2
[0052] Reference Figures 3-5 This is the second embodiment of the present invention. This embodiment provides an adjustable clamping mechanism and embedding forceps. It differs from the first embodiment in that it specifically includes an adjustment unit 200, which includes a displacement component 201 disposed in the movable cavity assembly 103, a clamping and fixing component 202 fixedly engaged with the displacement component 201, and a sliding component 203 fixedly connected to the end of the displacement component 201 away from the clamping assembly 102; and a heating component 301.
[0053] Furthermore, the displacement assembly 201 includes a hand-rolling gear 201a disposed in the movable cavity 103a, a rack 201b meshing with the hand-rolling gear 201a, a rotating shaft 201c disposed at both ends of the hand-rolling gear 201a and passing through the hand-rolling gear 201a, and a heating element 301a fixedly connected to one end of the rack 201b near the gripping head 102a;
[0054] The heating element 301a is compatible with the fixing slot 103c.
[0055] Furthermore, the snap-fit fixing component 202 includes fixing bolts 202a that pass through both sides of the handle housing 101b.
[0056] Furthermore, the sliding aid component 203 includes a slide plate 203a disposed at one end of the rack 201b away from the gripping head 102a and fixedly connected to the rack 201b, and a slider 203b disposed on the side of the slide plate 203a.
[0057] Furthermore, the hand-rolled gear 201a includes a fixing hole 201a-1 that engages with the fixing bolt 202a, and a rotating shaft through hole 201a-2 provided on both sides of the center of the hand-rolled gear 201a.
[0058] The fixing bolt 202a is compatible with the fixing hole 201a-1.
[0059] Furthermore, the heating assembly 301 includes a heating element 301a fixedly connected to one end of the rack 201b near the gripping head 102a, a power cord 301b disposed on the side of the elastic bending portion 101a away from the handle housing 101b, a temperature controller 301c disposed on the side of the handle housing 101b away from each other, and a temperature display screen 301d disposed on the side of the temperature controller 301c near the elastic bending portion 101a.
[0060] Preferably, the hand-rolled gear 201a can be fixed by the engagement of the fixing bolt 202a and the threaded hole 101b-2, preventing the hand-rolled gear 201a from rotating when it is not needed.
[0061] Preferably, the meshing of the hand-operated gear 201a and the rack 201b can effectively drive the heating element 301a to rotate. Furthermore, the rack 201b is fixedly connected to the slide plate 203a. The slider 203b and the groove 103b set on the side of the slide plate 203a provide good assistance to the movement of the rack 201b.
[0062] It should be noted that the connection between the rack 201b and the heating element 301a is made of a heat insulation layer, which can effectively prevent the heating element 301a from transferring heat to the rack 201b and prevent the rack 201b from being heated.
[0063] It should be noted that the rotating shaft 201c passes through the hand-grip gear 201a and is placed in the handle housing 101b, which has a bearing seat for housing the rotating shaft 201c.
[0064] It should be noted that when rotating the hand-rolled gear 201a, the fixing bolt 202a is not inserted into the fixing hole 201a-1 to prevent interference with the rotation of the hand-rolled gear 201a.
[0065] In use, plug the power cord 301b into the power source, adjust the temperature controller 301c to set the desired temperature, and adjust the position of the heating element 301a via the adjustment unit 200 to improve overall heat conduction efficiency. During use, the heating element 301a can be turned on and the temperature set. Then, manually rotate the hand-operated gear 201a. The hand-operated gear 201a will drive the meshing rack 201b to move along one end of the gripping head 102a. A slide plate 203a is fixedly connected to the rack 201b, and a slider 203b is fixedly connected to the side of the slide plate 203a. The slider 203b will slide in conjunction with the sliding groove 103b, providing good lubrication for the movement of the rack 201b. When the heating element 301a on the rack 201b reaches the fixed slot 103c, the heat conduction efficiency is effectively increased. Furthermore, whether the heating element 301a in the two movable chambers 103a of the handle housing 101b has reached the fixed slot 103c can be used to determine whether it has reached the desired temperature. To prevent uneven heating of the gripping head 102a due to different positions of the heating element 301a in the two movable cavities 103a, which could adversely affect the embedding of tissue samples, the fixing bolt 202a can be rotated when the heating element 301a reaches the designated position. This allows the fixing bolt 202a to engage with the fixing hole 201a-1, preventing the hand-operated gear 201a from being accidentally bumped and rotated, which could cause uneven heating of the gripping head 102a and adversely affect the embedding of tissue samples. When cooling the gripping head 102a, the hand-operated gear 201a is rotated in the opposite direction. The rack 201b moves the heating element 301a away from the gripping head 102a, thereby increasing the heat conduction distance and the heat dissipation range, thus rapidly cooling the gripping head 102a.
[0066] In summary, the beneficial effects of an adjustable clamping mechanism and embedding forceps are as follows: by setting a predetermined temperature through the temperature controller 301c, manually rotating the hand-operated gear 201a drives the meshing rack 201b to move along one end of the gripping head 102a, thereby increasing the heat conduction efficiency and effectively solving the problem of slow cooling and heat dissipation of the gripping head 102a. The sliding of the slider 203b and the sliding groove 103b through mutual cooperation can provide good lubrication for the movement of the rack 201b, preventing uneven heating of the gripping head 102a caused by the different positions of the heating elements 301a in the two movable cavities 103a, which may have an adverse effect on the embedding of tissue samples.
[0067] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0068] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0069] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0070] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An adjustable clamping mechanism, characterized in that: include, The main body unit (100) includes a housing assembly (101), a clamping assembly (102) symmetrically disposed at one end of the housing assembly (101) and fixedly connected to the housing assembly (101), and a movable cavity assembly (103) disposed within the housing assembly (101); The adjustment unit (200) includes a displacement component (201) disposed in the movable cavity assembly (103), a snap-fit component (202) fixedly snapped to the displacement component (201), and a sliding aid component (203) fixedly connected to the end of the displacement component (201) away from the clamping component (102).
2. The adjusting clamping mechanism as described in claim 1, characterized in that: The housing assembly (101) includes an elastic bending portion (101a) and a handle housing (101b) symmetrically disposed at both ends of the elastic bending portion (101a) and fixedly connected to the elastic bending portion (101a).
3. The adjusting clamping mechanism as described in claim 2, characterized in that: The clamping assembly (102) includes a clamping head (102a) disposed at one end of the handle housing (101b) away from the elastic bending portion (101a), and a heat-conducting plate (102b) disposed on the side of the handle housing (101b) close to each other and fixedly connected to one end of the clamping head (102a). The handle housing (101b) is adapted to the gripper head (102a).
4. The adjusting clamping mechanism as described in claim 3, characterized in that: The movable cavity assembly (103) includes a movable cavity (103a) disposed in the handle housing (101b), a slide groove (103b) disposed at the end of the displacement assembly (201) away from the gripper head (102a), and a fixed slot (103c) disposed at the end of the displacement assembly (201) near the gripper head (102a).
5. The adjusting clamping mechanism as described in claim 4, characterized in that: The displacement assembly (201) includes a hand-operated gear (201a) disposed in the movable cavity (103a), a rack (201b) meshing with the hand-operated gear (201a), and a rotating shaft (201c) disposed at both ends of the hand-operated gear (201a) and passing through the hand-operated gear (201a).
6. The adjusting clamping mechanism as described in claim 5, characterized in that: The snap-fit fixing assembly (202) includes fixing bolts (202a) that pass through both sides of the handle housing (101b).
7. The adjusting clamping mechanism as described in claim 6, characterized in that: The sliding aid component (203) includes a slide plate (203a) disposed at the end of the rack (201b) away from the gripper (102a) and fixedly connected to the rack (201b), and a slider (203b) disposed on the side of the slide plate (203a).
8. The adjusting clamping mechanism as described in claim 7, characterized in that: The handle housing (101b) includes an opening (101b-1) on a side of the handle housing (101b) that is far apart from each other, and a threaded hole (101b-2) that is threadedly connected to the fixing bolt (202a). The opening (101b-1) is adapted to the hand-rubbed gear (201a).
9. The adjusting clamping mechanism as described in claim 8, characterized in that: The hand-rolled gear (201a) includes a fixing hole (201a-1) that engages with the fixing bolt (202a), and a rotating shaft through hole (201a-2) provided on both sides of the center of the hand-rolled gear (201a); The fixing bolt (202a) is adapted to the fixing hole (201a-1).
10. An embedding forceps, characterized in that: Includes the adjusting clamping mechanism as described in any one of claims 5 to 9; and, The heating assembly (301) includes a heating element (301a) fixedly connected to one end of the rack (201b) near the gripping head (102a), a power cord (301b) disposed on the side of the elastic bend (101a) away from the handle housing (101b), a temperature controller (301c) disposed on the side of the handle housing (101b) away from each other, and a temperature display screen (301d) disposed on the side of the temperature controller (301c) near the elastic bend (101a).
Citation Information
Patent Citations
Tweezers for heating and embedding
CN220922074U