Aorta shearing device
By designing the aortic shear device, the problems of inconsistency and damage of rat abdominal aorta manually pruning microscissors were solved, regular shearing and time were shortened, and the scope of use was expanded.
Patent Information
- Application Number
- CN202510463992.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, when using microscissors to manually trim the rat abdominal aorta, the size and shape of the pruning are inconsistent, the pruning time is long and it is easy to cause arterial damage.
An aortic shear device is designed, including the first and second pressing handles, replacement assembly and shear knife, which is connected by a hinge to achieve single-use regular shearing, and different types of shear knives can be replaced to meet different needs.
Regular shearing of the abdominal aorta is achieved, shortening the pruning time, avoiding arterial damage, and expanding the scope of use of the device.
Smart Images
Figure CN120284515A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of rat models, and more particularly to an aortic shearing device. Background Art
[0002] In medical research, rats are usually used to simulate human diseases or conduct related research. When performing a rat kidney transplantation surgery in the laboratory, since the rat renal artery is relatively thin and elastic, when performing an arterial anastomosis, usually a part of the abdominal aorta connected to the rat renal artery is cut off to facilitate anastomosis to the recipient's abdominal aorta.
[0003] Currently, the method of trimming the abdominal aorta is to manually trim it with a micro-scissors inside the rat. During shearing, the micro-scissors need to perform shearing actions multiple times, resulting in different sizes and shapes for each trimming, and a relatively long trimming time. Moreover, during the trimming process, it is easy to clamp the artery and cause arterial damage.
[0004] Therefore, those skilled in the art have proposed an aortic shearing device to solve the problems raised in the background art. Summary of the Invention
[0005] In order to solve the above technical problems, the present invention provides an aortic shearing device to solve the problems in the prior art that when using a micro-scissors to manually trim the abdominal aorta, the size and shape of each trimming are different, the trimming time is relatively long, and it is easy to clamp the artery and cause arterial damage during the trimming process.
[0006] An aortic shearing device includes a first pressing handle, the first pressing handle is connected to a second pressing handle. The first pressing handle and the second pressing handle are arc-shaped metal sheets. The first pressing handle and the second pressing handle are respectively provided with expansion parts. The first pressing handle and the second pressing handle are connected to a replacement component, and the replacement component is connected to a shearing knife.
[0007] Preferably, the replacement component includes insertion plates respectively connected to the first pressing handle and the second pressing handle. The insertion plates are provided with matching insertion sleeves. The insertion sleeves are provided with slots. The insertion plates are fixedly installed with first magnetic attraction blocks, and the slots are fixedly installed with second magnetic attraction blocks.
[0008] Preferably, the shearing knife includes a shearing slice fixedly connected to the insertion sleeve. The shearing slice is an arc-shaped metal sheet. The insertion plate is provided with an arc-shaped groove, and the shearing slice forms a shearing edge.
[0009] Preferably, the shearing knife includes a first shearing ring and a second shearing ring respectively fixedly connected to the socket. The first shearing ring and the second shearing ring are oval rings. The first shearing ring is formed with a shearing edge, and the second shearing ring is formed with a shearing groove. The first shearing ring and the socket are provided with oval holes, the second shearing ring is provided with an oval groove, and the second shearing ring and the socket are provided with a placing groove.
[0010] Preferably, the first pressing handle and the second pressing handle are rotatably connected by a hinge. The first pressing handle is provided with a through groove, the second pressing handle is connected with a movable strip, and one end of the movable strip far away from the second pressing handle is connected with a limiting protrusion.
[0011] Preferably, the second pressing handle, the movable strip and the limiting protrusion are integrally formed. The width of the through groove is equal to the width of the movable strip, and the widths of the second pressing handle and the limiting protrusion are both greater than the width of the through groove.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. By setting the shearing knife, when shearing the abdominal aorta, a regular shape can be formed, and the shearing action can be completed once, reducing the trimming time. Without multiple opening and closing, the situation of accidental injury during trimming can be avoided.
[0014] 2. By replacing components, a suitable shearing knife can be replaced according to operation needs, or a new shearing knife can be replaced, expanding the use range of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the first shearing knife of an aortic shearing device;
[0016] Figure 2 It is an exploded schematic diagram of the parts of the replacement component of an aortic shearing device;
[0017] Figure 3 It is for Figure 2 the enlarged schematic diagram at B in
[0018] Figure 4 It is for Figure 2 the enlarged schematic diagram at C in
[0019] Figure 5 It is for Figure 1 the enlarged schematic diagram at A in
[0020] Figure 6 It is a schematic diagram of the second shearing knife of an aortic shearing device;
[0021] Figure 7 It is for Figure 6Schematic diagram of the enlarged view at position D in
[0022] Figure 8 Schematic diagram of the first cutting ring of an aortic cutting device;
[0023] Figure 9 Schematic diagram of the second cutting ring of an aortic cutting device.
[0024] In the figure:
[0025] 1. First pressing handle; 2. Second pressing handle; 3. Inflation part; 4. Replacement component; 401. Insert plate; 402. Insert sleeve; 403. Slot; 404. First magnetic block; 405. Second magnetic block; 5. Cutting piece; 6. Arc groove; 7. Cutting edge; 8. First cutting ring; 9. Second cutting ring; 10. Cutting groove; 11. Oval hole; 12. Oval groove; 13. Placing groove; 14. Hinge; 15. Through groove; 16. Movable bar; 17. Limit projection. Specific implementation mode
[0026] The following further describes the implementation mode of the present invention in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0027] Embodiment 1
[0028] As shown in the attached Figure 1 to the attached Figure 4 This embodiment provides an aortic cutting device, including a first pressing handle 1. The first pressing handle 1 is connected to a second pressing handle 2. During use, the operator holds the first pressing handle 1 and the second pressing handle 2 with the palm of the hand. By squeezing tightly with the palm, the first pressing handle 1 and the second pressing handle 2 are deformed, and then the cutting knife cuts the abdominal aorta. The first pressing handle 1 and the second pressing handle 2 are arc-shaped metal sheets. By setting the shape and material of the first pressing handle 1 and the second pressing handle 2, the first pressing handle 1 and the second pressing handle 2 have elasticity. The first pressing handle 1 and the second pressing handle 2 are respectively provided with inflation parts 3. The inflation parts 3 expand the contact area between the first pressing handle 1 and the second pressing handle 2 and the palm, thereby increasing the friction and improving the operation stability. The first pressing handle 1 and the second pressing handle 2 are connected to a replacement component 4. Through the replacement component 4, a suitable cutting knife can be replaced according to the operation needs, or a new cutting knife can be replaced. The replacement component 4 is connected to a cutting knife. Among them, the cutting edge 7 is provided with two styles according to in-vivo operation and in-vitro operation, expanding the use range of the device. The first pressing handle 1, the second pressing handle 2, the inflation part 3, and the cutting knife are all made of stainless steel, with excellent corrosion resistance, high strength and toughness, and a long service life.
[0029] Specifically, the replacement component 4 includes a plug board 401 respectively connected to the first pressing handle 1 and the second pressing handle 2. The plug board 401 is provided with a socket 402 in a matching manner. The socket 402 is provided with a slot 403. A first magnetic block 404 is fixedly installed on the plug board 401, and a second magnetic block 405 is fixedly installed in the slot 403. Insert the plug board 401 into the slot 403. At this time, the first magnetic block 404 and the second magnetic block 405 attract each other to ensure the installation effect of the shear blade. If the shear blade needs to be replaced, pull out the current plug board 401 from the slot 403, and then insert the plug board 401 into the slot 403 used with the new shear blade. The plug board 401 and the socket 402 are made of stainless steel.
[0030] Furthermore, a hinge 14 is rotatably connected to the first pressing handle 1 and the second pressing handle 2. By setting the hinge 14, the two groups of shear blades can rotate relative to each other to complete the opening and closing actions, and then complete the shearing action. A through groove 15 is provided in the first pressing handle 1, and a movable bar 16 is connected to the second pressing handle 2. One end of the movable bar 16 away from the second pressing handle 2 is connected with a limiting protrusion 17. When the operator holds the first pressing handle 1 and the second pressing handle 2 tightly, the first pressing handle 1 and the second pressing handle 2 approach each other and deform to store energy for resetting. The two groups of shear blades perform a shearing action. At the same time, the movable bar 16 moves in the through groove 15 to assist the deformation of the first pressing handle 1 and the second pressing handle 2.
[0031] Furthermore, the second pressing handle 2, the movable bar 16 and the limiting protrusion 17 are integrally formed. The width of the through groove 15 is equal to the width of the movable bar 16. The widths of the second pressing handle 2 and the limiting protrusion 17 are both greater than the width of the through groove 15. During use, the limiting protrusion 17 can prevent the movable bar 16 from disengaging from the through groove 15.
[0032] As can be seen from the above, the operator holds the first pressing handle 1 and the second pressing handle 2 with the palm, inserts the device into the rat's body, and makes the abdominal aorta located on the movement path of the two groups of shear blades. The palm is held tightly to apply an external force to make the first pressing handle 1 and the second pressing handle 2 approach each other. Due to the setting of the hinge 14, at this time, the two groups of shear blades can rotate relative to each other to complete the closing action, and then the shear blades shear the abdominal aorta. When the palm is held tightly, the first pressing handle 1 and the second pressing handle 2 deform. Then, the palm is slightly opened. At this time, the first pressing handle 1 and the second pressing handle 2 return to their original states, and the two groups of shear blades open to complete the operation of shearing the abdominal aorta.
[0033] Embodiment 2
[0034] As shown in the attachment Figure 5As shown in the figure, this embodiment is basically the same as the first embodiment, except that the shearing knife includes a shearing piece 5 fixedly connected to the socket 402. The shearing piece 5 is an arc-shaped metal piece, preferably made of stainless steel. The inserting plate 401 is provided with an arc-shaped groove 6, and the shearing piece 5 is formed with a shearing edge 7. When the two groups of shearing pieces 5 are closed to each other, the two groups of shearing edges 7 come into contact with each other, thereby cutting off the abdominal aorta, and the shearing action can be completed at one time. Since the shearing piece 5 is arc-shaped, the incision of the abdominal aorta can form a regular shape.
[0035] As can be seen from the above, during the operation, the shearing piece 5 is inserted into the rat body, and the arc-shaped groove 6 of the inserting plate 401 is located at the connection of the abdominal aorta and the renal artery. Since the inserting plate 401 is provided with an arc-shaped groove 6 and the shearing knife is an arc-shaped metal piece, a regular shape can be formed during shearing. The palm tightly holds the first pressing handle 1 and the second pressing handle 2, and the two shearing pieces 5 are brought closer to each other through the hinge 14. When the two groups of shearing pieces 5 are closed, the two groups of shearing edges 7 come into contact with each other, thereby cutting off the abdominal aorta, and the shearing action can be completed at one time, reducing the trimming time and not requiring multiple openings and closings, and the situation of accidental injury during the trimming process can be avoided.
[0036] Embodiment Three
[0037] As shown in the attached Figure 6 to the attached Figure 9 As shown in the figure, this embodiment is basically the same as the first embodiment, except that the shearing knife includes a first shearing ring 8 and a second shearing ring 9 respectively fixedly connected to the socket 402. The shearing action is performed by closing the first shearing ring 8 and the second shearing ring 9. The first shearing ring 8 and the second shearing ring 9 are oval rings. The first shearing ring 8 is formed with a shearing edge 7, and the second shearing ring 9 is formed with a shearing groove 10. When the first shearing ring 8 and the second shearing ring 9 are closed, the shearing edge 7 fits with the shearing groove 10. The first shearing ring 8 and the socket 402 are provided with oval holes 11. Through the oval holes 11 under the stereomicroscope, it can be seen whether the opening of the renal artery is in the middle of the first shearing ring 8. The second shearing ring 9 is provided with an oval groove 12, and the second shearing ring 9 and the socket 402 are provided with a placing groove 13. The placing groove 13 is composed of a connected circular groove and a straight groove.
[0038] As can be seen from the above, the shearing knife of this embodiment is used in cooperation with a micro-scissors, that is, first use the micro-scissors to cut the abdominal aorta in the rat body. At this time, the incision of the renal artery forms an irregular patch. After adjusting the patch of the renal artery to the outside of the body, the patch is trimmed by the shearing knife of this embodiment;
[0039] Specifically, pass the renal artery located outside the body through the straight groove and place it into the circular groove of the second cutting ring 9, and lay the patch on the elliptical groove 12. Part of the laid patch extends out of the area of the second cutting ring 9. During this period, it is possible to observe whether the incision of the renal artery is in the middle of the first cutting ring 8 through the elliptical hole 11. Close the first cutting ring 8 and the second cutting ring 9, make the cutting blade 7 fit with the cutting groove 10, cut the patch into a regular shape, loosen the first cutting ring 8 and the second cutting ring 9, and take out the renal artery from the placement groove 13 to complete the operation, and the incision of the renal artery can be quickly trimmed into a regular shape.
[0040] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0041] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "plurality" is two or more, unless otherwise specifically defined.
[0042] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0045] In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An aortic shearing device, characterized in that: It includes a first pressing handle (1), the first pressing handle (1) is connected to a second pressing handle (2), the first pressing handle (1) and the second pressing handle (2) are arc-shaped metal sheets, the first pressing handle (1) and the second pressing handle (2) are respectively provided with expansion parts (3), the first pressing handle (1) and the second pressing handle (2) are connected to a replacement component (4), and the replacement component (4) is connected to a shear knife.
2. The aortic shear device according to claim 1, wherein: The replacement component (4) includes insertion plates (401) respectively connected to the first pressing handle (1) and the second pressing handle (2), the insertion plates (401) are provided with insertion sleeves (402) in a matching manner, the insertion sleeves (402) are provided with insertion slots (403), the insertion plates (401) are fixedly installed with first magnetic attraction blocks (404), and the insertion slots (403) are fixedly installed with second magnetic attraction blocks (405).
3. The aortic shear device according to claim 2, characterized in that: The shear knife includes a shear slice (5) fixedly connected to the insertion sleeve (402), the shear slice (5) is an arc-shaped metal sheet, the insertion plate (401) is provided with an arc-shaped groove (6), and the shear slice (5) forms a shear edge (7).
4. The aortic shearing device according to claim 2, characterized in that: The shear knife includes a first shear ring (8) and a second shear ring (9) respectively fixedly connected to the insertion sleeve (402), the first shear ring (8) and the second shear ring (9) are oval rings, the first shear ring (8) forms a shear edge (7), the second shear ring (9) forms a shear groove (10), the first shear ring (8) and the insertion sleeve (402) are provided with oval holes (11), the second shear ring (9) is provided with an oval groove (12), and the second shear ring (9) and the insertion sleeve (402) are provided with placing grooves (13).
5. Aortic shear device according to any one of claims 2-4, characterized in that: The first pressing handle (1) and the second pressing handle (2) are rotatably connected by a hinge (14), the first pressing handle (1) is provided with a through groove (15), the second pressing handle (2) is connected to a movable strip (16), and one end of the movable strip (16) far away from the second pressing handle (2) is connected to a limit projection (17).
6. The aortic shearing device according to claim 5, wherein: The second pressing handle (2), the movable strip (16) and the limit projection (17) are integrally formed, the width of the through groove (15) is equal to the width of the movable strip (16), and the widths of the second pressing handle (2) and the limit projection (17) are both greater than the width of the through groove (15).