Dissecting tool for animals
By designing an animal dissection tool with a T-shaped grip and a double-edged structure, the problem of insufficient compatibility between existing tools and the curved surface of the skull was solved, enabling efficient and safe dissection operations and improving dissection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DINGTAI MEDICINE RES CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
Existing animal dissection tools have limitations in large animal skull anatomy research, including insufficient mechanical compatibility between the tools and the curved surface of the skull, leading to soft tissue residue or accidental incision into the cranial cavity, as well as insufficient operational precision and safety.
An animal dissection tool was designed, which adopts a T-shaped grip and a double-edged structure. The first blade has a double bevel and the second blade has a hyperboloid, forming a three-dimensional torque transmission channel. It achieves precise mechanical transmission through the lever enhancement principle and adapts to complex craniofacial geometry.
It improves the precision and safety of anatomical procedures, reduces the intensity of force applied, decreases the risk of soft tissue injury and operational injury, and enhances anatomical efficiency and quality.
Smart Images
Figure CN224369890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dissection tools, and more specifically to animal dissection tools. Background Technology
[0002] In large animal skull anatomy studies, soft tissue dissection and cranial cavity exposure are key preprocessing steps for obtaining complete anatomical data.
[0003] Currently, straight-handled anatomical instruments are routinely used for periosteal dissection and skull cutting. However, their tool design has inherent limitations in its biomechanical compatibility with the curved surface of the skull. Due to the complex three-dimensional geometry and varied suture structures of the craniofacial complex, traditional straight-bladed instruments are prone to stress concentration during periosteal dissection, leading to soft tissue residue or accidental incision into the cranial cavity. When performing foramen magnum or coronal suture separation, the linear force application method and the curved bone surface make it difficult to achieve the optimal angle of action, affecting the precise control of the bone cutting path.
[0004] As mentioned above, there is still room for improvement in terms of mechanical transmission efficiency, operational precision, and safety protection of existing dissection tools. There is an urgent need to develop specialized instruments that meet the biomechanical characteristics of anatomy in order to improve the standardization and repeatability of dissection operations. Summary of the Invention
[0005] To address the technical problems existing in current animal dissection tools, this utility model proposes an animal dissection tool, comprising:
[0006] The grip portion is configured as a columnar structure that can be gripped by a user and extends along a first direction;
[0007] A first cutting edge structure is connected to the gripping part, and the first cutting edge structure has a double-beveled first cutting edge in the direction away from the gripping part;
[0008] A second cutting edge structure is connected to the gripping part, and the second cutting edge structure has a hyperboloid second cutting edge in the direction away from the gripping part;
[0009] Wherein, the extension direction of the first cutting edge structure is the second direction, the second direction is perpendicular to the first direction, and the two first cutting edges form a linear first cutting edge at the end of the first cutting edge structure, the extension direction of the first cutting edge is parallel to the first direction;
[0010] The extension direction of the second cutting edge structure is the first direction, and the two second cutting edges form a linear second cutting edge at the end of the second cutting edge structure. The extension direction of the second cutting edge is perpendicular to the first direction and the second direction.
[0011] Preferably, the first blade structure is constructed as a columnar structure, the axis of the first blade structure intersects with the axis of the grip and forms a first plane, and the first blade tip is located in the first plane.
[0012] Preferably, the first cutting surface is a plane, and the first cutting surface is configured to intersect the first plane at the first cutting peak.
[0013] Preferably, the two first cutting surfaces are located on the first side and the second side of the first plane, respectively, and the two first cutting surfaces have the same angle with the first plane.
[0014] Preferably, a support rod is provided between the grip portion and the first cutting edge structure, and the outer diameter of the support rod is smaller than the outer diameter of the grip portion and the outer diameter of the first cutting edge structure.
[0015] Preferably, the axis of the first blade structure extends to the grip portion near the second blade structure.
[0016] Preferably, the second blade structure is constructed as a columnar structure, and the axis of the second blade structure coincides with the axis of the grip.
[0017] Preferably, the second cutting surface is curved, and the second cutting peak intersects the axis of the second cutting structure.
[0018] Preferably, the second cutting surface includes a first curved surface and a second curved surface, the curvature of the first curved surface is greater than the curvature of the second curved surface, and the first curved surface is located on the side away from the first cutting surface structure.
[0019] Preferably, the end of the second blade structure is provided with a connecting rod, which is detachably connected to the grip.
[0020] Compared with the prior art, the advantages of this utility model are:
[0021] The anatomical tool proposed in this application has a first cutting edge structure and a second cutting edge structure. The first cutting edge structure and the grip form a mechanical transmission system based on the lever enhancement principle. The T-shaped orthogonal grip design can form a three-dimensional torque transmission channel. The operator can accurately guide the cutting force to the working surface of the cutting edge by rotating the wrist. Compared with traditional straight-handle instruments, it can reduce the force intensity. The cutting edge design can prevent the cutting edge from accidentally cutting into the cranial cavity and avoid operational injuries caused by instrument slippage. The curved surface design of the second cutting edge structure can conform to the skull, which is conducive to the separation of muscles / fascia from the skull. Attached Figure Description
[0022] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:
[0023] Figure 1 This is a schematic diagram of the structure of the animal dissection tool shown in this utility model;
[0024] Figure 2 This is a schematic diagram of the blade structure shown in this utility model;
[0025] Figure 3 This is a front view of the animal dissection tool shown in this utility model;
[0026] Figure 4 This is a side view of the animal dissection tool shown in this utility model. Detailed Implementation
[0027] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.
[0028] Combination Figure 1 and Figure 2 As shown, this utility model proposes an animal dissection tool that is suitable for skull and muscle stripping and skull separation operations in the dissection of different kinds of large animals (such as monkeys, dogs, pigs, etc.), and is especially suitable for toxicological pathology research, nervous system anatomy and other delicate dissection operations.
[0029] The aforementioned animal dissection tool mainly includes a grip 10, a first blade structure 20, and a second blade structure 40. Compared to the traditional arrangement where the blade and grip are in the same direction, this application arranges the grip 10 and the first blade structure 20 vertically to form a T-shape, which is particularly suitable for applying force when prying open bone sutures.
[0030] Thus, the grip 10 and the first cutting edge structure 20 form a mechanical transmission system based on the lever enhancement principle. The T-shaped orthogonal grip 10 design can form a three-dimensional torque transmission channel. The operator can accurately guide the cutting force to the working surface of the cutting edge by rotating the wrist, which can reduce the force intensity compared with traditional straight handle instruments.
[0031] Furthermore, the second cutting edge structure 40 is provided with a hyperboloid second cutting edge 42 in the direction away from the gripping part 10. The extension direction of the second cutting edge structure 40 is the first direction. The two second cutting edges 42 form a linear second cutting edge 422 at the end of the second cutting edge structure 40. The extension direction of the second cutting edge 422 is perpendicular to the first direction and the second direction.
[0032] Thus, through the curved surface design, muscles and fascia can be quickly and precisely separated from the skull during skull dissection, minimizing soft tissue damage.
[0033] Specifically, in combination Figure 1 and Figure 2 As shown, the grip portion 10 is constructed as a columnar structure that can be gripped by a user and extends along a first direction. The first blade structure 20 is connected to the grip portion 10, and the first blade structure 20 has a first blade surface 22 with double bevels in the direction away from the grip portion 10.
[0034] The first cutting edge structure 20 extends in a second direction, which is perpendicular to the first direction. Two first cutting edges 22 form a linear first cutting edge 223 at the end of the first cutting edge structure 20. The extension direction of the first cutting edge 223 is parallel to the first direction.
[0035] As described above, the end of the first blade structure 20 forms a linear first blade peak 223. When the user operates the grip 10, the user's force direction can be towards the extension direction of the first blade structure 20, completing the operation of separating some muscles / fascia and bones. At the same time, the user can also complete the operation of prying open the skull by rotating the wrist or pressing down with the arm, which can provide the necessary leverage when prying open the skull.
[0036] Thus, compared to traditional straight-handled instruments, the T-shaped design of this application increases the versatility of the tool and allows for multi-angle operation, making it adaptable to the needs of different species anatomy scenarios.
[0037] Furthermore, the first cutting edge structure 20 is constructed as a columnar structure, the axis of the first cutting edge structure 20 intersects with the axis of the gripping part 10 and forms a first plane, and the first cutting edge 223 is located in the first plane.
[0038] Combination Figure 1 and Figure 2 As shown, the first cutting edge structure 20 includes a columnar main body structure 21. Two first cutting edges are formed at the front end of the main body structure 21, namely cutting edge A221 and cutting edge B222. A first cutting edge peak 223 is formed at the intersection of cutting edge A221 and cutting edge B222.
[0039] The first cutting edge structure 20 formed in this way has high strength, and the first cutting edge 223 and the first cutting edges on both sides can meet the operational requirements of prying open the bone seams and separating the bone from the flesh, thus improving operational efficiency.
[0040] In a preferred embodiment, the first cutting surface 22 (cutting surface A221 and cutting surface B222) is a plane, and the first cutting surface 22 is configured to intersect the first plane at the first cutting peak 223.
[0041] Preferably, the two first cutting surfaces 22 are located on the first side and the second side of the first plane, respectively, and the two first cutting surfaces 22 have the same angle with the first plane.
[0042] Specifically, cutting edge A221 is located on the first side of the first plane, and cutting edge B222 is located on the second side of the first plane.
[0043] In an optional embodiment, the length of the cutting edge 223 is 15±3 mm. The included angle between the two first cutting edges 22 is A, where A=26.4±5°.
[0044] Thus, by adopting the aforementioned blade angle design, the efficiency of muscle / fascia and bone separation can be improved by 30%.
[0045] Furthermore, a support rod 30 is provided between the gripping part 10 and the first cutting edge structure 20. The outer diameter of the support rod 30 is smaller than the outer diameter of the gripping part 10 and the outer diameter of the first cutting edge structure 20.
[0046] In an optional embodiment, the length of the support rod 30 is 20±2mm. Specifically, when the user holds the grip part 10, their thumb can rest against the outer wall of the support rod 30 to prevent the first blade structure 20 from deviating from the target position.
[0047] Thus, the grip 10 and the first cutting edge structure 20 are connected by a support rod 30. This short bridge connection design effectively suppresses lateral displacement while ensuring the stability and durability of the tool, reducing the risk of animal tissue damage and personnel injury.
[0048] Furthermore, the second cutting edge structure 40 is constructed as a columnar structure, and the axis of the second cutting edge structure 40 coincides with the axis of the grip portion 10. The second cutting edge structure 40 includes a columnar main body 41 and a second cutting edge 42 located at the front end of the main body 41.
[0049] In this way, the user can control the end position of the second blade structure 40 by controlling the posture of the grip 10, thereby achieving the muscle and fascia stripping operation.
[0050] The second cutting surface 42 is curved, and the second cutting peak 422 intersects the axis of the second cutting structure 40.
[0051] Preferably, the second cutting surface 42 includes a first curved surface 421 and a second curved surface 423, the curvature of the first curved surface 421 is greater than the curvature of the second curved surface 423, and the first curved surface 421 is located on the side away from the first cutting edge structure 20.
[0052] In this way, by setting the curved surface, the second cutting surface 42 can be better fitted to the surface of the skull, which is conducive to achieving the goal of rapid separation of muscles, fascia and skull during skull dissection.
[0053] Combination Figure 3 As shown, the end of the second blade structure 40 is provided with a connecting rod 50, which is detachably connected to the gripping part 10.
[0054] It should be understood that the second blade structure 40 can be configured in various models to adapt to the skull anatomy of different species.
[0055] Thus, when faced with the dissection of the skulls of different animals, a second blade structure 40 of appropriate size can be selected and assembled onto one end of the grip 10 to complete the skull dissection.
[0056] In an optional embodiment, the connecting rod 50 includes a cylindrical portion 51 and a hexagonal prism portion 52. The end of the grip portion 10 is provided with a socket 12, the hexagonal prism portion 52 can be inserted into the socket, and the bottom of the socket is provided with a magnetic structure. The hexagonal prism portion 52 is inserted into the socket 12 and fixed by magnetic attraction.
[0057] Combination Figure 1 As shown, the axis of the first blade structure 20 extends to the grip portion 10 near the second blade structure 40.
[0058] It should be understood that the first blade structure 20 completes the prying open of the skull and the separation of muscles and fascia in the planar portion, while the second blade structure 40 completes the separation of muscles / fascia from the skull in the skull portion. The gripping methods of the first blade structure 20 and the second blade structure 40 are different.
[0059] Specifically, in combination Figure 1 As shown, when the first blade structure 20 is used as the operating part, the hand is held in the central area F of the grip 10, the index finger is held in the connecting area A of the connecting rod 50 and the grip 10, the middle finger is held in the first side area B of the support rod 30 on the grip 10, the ring finger is held in the second side area C of the support rod 30 on the grip 10, and the little finger is held in the end area D of the grip 10.
[0060] As can be seen, using the support rod 30 as the dividing point between the middle and ring fingers, this grip method is beneficial for controlling the position of the cutting edge 223 of the first cutting edge structure 20, providing a comfortable grip, and the cutting edge 223 can be precisely and controllably moved to the ideal working surface by manipulating the grip part 10.
[0061] Specifically, in combination Figure 4 As shown, when the second blade structure 40 is used as the operating part, the hand is held in the central area F of the grip 10, the thumb is placed on the surface area A of the connecting rod 50, the index finger is placed on the first side end area B of the support rod 30 on the surface of the grip 10, the middle finger is placed on the second side surface area C of the support rod 30 on the surface of the grip 10, and the ring finger and little finger are placed in adjacent areas D and E of area C in sequence.
[0062] Thus, when separating muscles / fascia and skull, the thumb can control the direction of force and accurately control the position of the second blade peak 422.
[0063] In the above embodiments, the two end faces 11 of the grip portion 10 are connected to the main body with rounded or chamfered corners, which can increase grip comfort.
[0064] Optionally, the grip 10 is made of high-quality stainless steel casting with a sandblasted surface, which combines high corrosion resistance and mechanical strength.
[0065] In combination with the above embodiments, the aforementioned dissection tools enable rapid dissection of the skull and muscles in large animal dissections, while simultaneously allowing for precise and rapid separation of the sawn-open skull. This significantly improves dissection efficiency and quality, reduces the risk of animal tissue damage and personnel injury, and ensures precise and safe operation.
[0066] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.
Claims
1. An animal dissection kit, comprising: include: The grip (10) is configured as a columnar structure that can be gripped by a user and extends along a first direction; A first cutting edge structure (20) is connected to the gripping part (10), and the first cutting edge structure (20) has a first cutting edge (22) with double bevels in the direction away from the gripping part (10). The second cutting edge structure (40) is connected to the gripping part (10), and the second cutting edge structure (40) has a hyperboloid second cutting edge (42) in the direction away from the gripping part (10); Wherein, the extension direction of the first cutting edge structure (20) is the second direction, the second direction is perpendicular to the first direction, and the two first cutting edges (22) form a linear first cutting edge (223) at the end of the first cutting edge structure (20), the extension direction of the first cutting edge (223) is parallel to the first direction; The extension direction of the second cutting edge structure (40) is the first direction, and the two second cutting edges (42) form a linear second cutting edge (422) at the end of the second cutting edge structure (40). The extension direction of the second cutting edge (422) is perpendicular to the first direction and the second direction.
2. The animal dissection kit of claim 1, wherein, The first cutting edge structure (20) is constructed as a columnar structure, the axis of the first cutting edge structure (20) intersects with the axis of the gripping part (10) and forms a first plane, and the first cutting edge (223) is located in the first plane.
3. The animal dissection kit of claim 2, wherein, The first cutting edge (22) is a plane, and the first cutting edge (22) is set to intersect the first plane at the first cutting edge (223).
4. The animal dissection tool according to claim 3, characterized in that, The two first cutting surfaces (22) are located on the first side and the second side of the first plane, respectively, and the two first cutting surfaces (22) have the same angle with the first plane.
5. The animal dissection tool according to claim 1, characterized in that, A support rod (30) is provided between the grip (10) and the first blade structure (20). The outer diameter of the support rod (30) is smaller than the outer diameter of the grip (10) and the outer diameter of the first blade structure (20).
6. The animal dissection tool according to claim 1, characterized in that, The axis of the first blade structure (20) extends to the position of the grip (10) near the second blade structure (40).
7. The animal dissection tool according to claim 1, characterized in that, The second blade structure (40) is constructed as a columnar structure, and the axis of the second blade structure (40) coincides with the axis of the grip (10).
8. The animal dissection tool according to claim 7, characterized in that, The second cutting surface (42) is curved, and the second cutting peak (422) intersects the axis of the second cutting structure (40).
9. The animal dissection tool according to claim 1, characterized in that, The second cutting edge (42) includes a first curved surface (421) and a second curved surface (423), wherein the curvature of the first curved surface (421) is greater than the curvature of the second curved surface (423), and the first curved surface (421) is located on the side away from the first cutting edge structure (20).
10. The animal dissection tool according to any one of claims 1-9, characterized in that, The end of the second blade structure (40) is provided with a connecting rod (50), which is detachably connected to the grip (10).