CN219538562U - Universal type large and small mouse fracture and bone defect modeling apparatus - Google Patents
Universal type large and small mouse fracture and bone defect modeling apparatus Download PDFInfo
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- CN219538562U CN219538562U CN202320353516.9U CN202320353516U CN219538562U CN 219538562 U CN219538562 U CN 219538562U CN 202320353516 U CN202320353516 U CN 202320353516U CN 219538562 U CN219538562 U CN 219538562U
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Abstract
The utility model relates to a universal model making device for fracture and bone defect of a rat and a mouse, belongs to the technical field of animal experiment devices, and solves the problems that an open fracture model and the operation field of bone defect model making are difficult to expose and the exposed soft tissues, blood vessels and nerves are extremely easy to damage. The utility model comprises a bracket and a bearing component, wherein the bearing component is arranged on the bracket; the bracket comprises a plurality of first cross bars, a plurality of vertical bars and a second cross bar; the first cross rod, the vertical rod and the second cross rod are telescopic rods; the bearing component comprises a supporting hook, a cantilever and a cantilever seat; the supporting hook is used for supporting the forelimbs and the hind limbs of the experimental animal and carrying out fracture and bone defect modeling. The utility model can meet the different body type requirements of experimental animals, provide maximum operation convenience for operators, ensure the positioning of diaphysis, finish the fixation and lifting of limbs of the experimental animals, form an operation field at the fracture part, reduce collateral damage during fracture and osteotomy operations and ensure successful operation.
Description
Technical Field
The utility model relates to the technical field of animal experiment instruments, in particular to a universal type large and small mouse fracture and bone defect modeling instrument.
Background
Fracture is a clinical common disease, and stable, reliable, standard and repeatable animal models are required for researching pathophysiological mechanisms such as fracture occurrence, fracture healing, bone reconstruction after fracture and the like. The current fracture model construction of small animals mainly comprises an open fracture model, a bone defect model and the like.
The design thinking of the open fracture model is to plan the fracture and make the mould part (expose, cause the bone to separate under the direct vision. The concrete flow of this mould method is after anaesthetizing the mouse, make the incision from the medial border midpoint of limb to the near side in the femur, the incision size depends on animal body size, cut bone in the middle section of femur with the wire saw or pendulum saw long bone diaphysis, cause the transverse fracture.
The design idea of the bone defect model is to expose the planned fracture modeling part, cut off a large section of bone under direct vision and then connect with the internal fixation. The specific process of the modeling method is that after the anesthesia of the experimental object, a cut is made on the inner side of the femur from the midpoint of the inner side edge of the limb to the near side, the size of the cut is determined according to the size of the animal body, and the bone is cut on the diaphysis of the long bone by a wire saw or a pendulum saw in the middle section of the femur, or the bone is directly bitten by a rongeur, so that segmental bone defect is caused.
The open fracture model and the bone defect model have similar defects, the defects are that when the diaphysis of the long bone is exposed, the large blood vessels and the nerves are easy to damage, a certain anatomical knowledge background and operation experience are needed, meanwhile, when the diaphysis of the long bone is cut by a wire saw or a pendulum saw, the wire saw and the pendulum saw have no proper specifications, the exposed soft tissues, the blood vessels and the nerves are extremely easy to damage in the bone cutting process, and the operation risk is extremely high. Therefore, in order to maximize protection of surrounding vital tissue, this requires the surgeon to enlarge the incision as much as possible, fully exposing the surgical field, which causes significant damage to the experimental animal.
In order to overcome the defects of difficult exposure of the operation field of the open fracture model and the bone defect modeling and extremely easy damage of exposed soft tissues, blood vessels and nerves, a universal type device for modeling the fracture and the bone defect of the rat and the mouse is urgently needed.
Disclosure of Invention
In view of the above analysis, the present utility model aims to provide a universal model apparatus for fracture and bone defect modeling of rats and mice, which is used for solving the problems of difficult exposure of the open fracture model and the operation field of bone defect modeling, and extremely easy damage of exposed soft tissues, blood vessels and nerves.
The aim of the utility model is mainly realized by the following technical scheme:
a universal model making device for fracture and bone defect of rats and mice comprises a bracket and a bearing component, wherein the bearing component is arranged on the bracket; the bracket comprises a plurality of first cross bars, a plurality of vertical rods and a second cross bar, wherein the first cross bars are connected with each other, one end of each vertical rod is connected with the first cross bar, and the other end of each vertical rod is connected with the second cross bar; the first cross rod, the vertical rod and the second cross rod are telescopic rods; the bearing component comprises a supporting hook, a cantilever and a cantilever seat, one end of the cantilever is connected with the supporting hook, the other end of the cantilever is connected with the cantilever seat, and the cantilever seat is arranged on the second cross rod; the supporting hook is used for supporting the forelimbs and the hind limbs of the experimental animal and carrying out fracture and bone defect modeling.
Further, the telescopic rod comprises a supporting rod and a sleeve, the supporting rod is arranged in the sleeve, and the supporting rod can extend and retract in the sleeve.
Further, the telescopic rod further comprises a hoop, and the hoop is movably connected with one end of the sleeve.
Further, the support rod is a straight rod, the support rod can stretch out and draw back along a straight line in the sleeve, an external thread is arranged at one end of the sleeve, an internal thread is arranged on the sleeve, and the sleeve can relax and lock the positions of the support rod and the sleeve.
Further, the support rod is provided with external threads, the hoops are provided with internal threads, the hoops are rotated, and the support rod can stretch and retract in the sleeve.
Further, the bracket also comprises a tee joint, and the first cross rod, the upright rod and the second cross rod are connected through the tee joint; the tee joint is T-shaped and comprises a transverse pipe and a longitudinal pipe; the two ends of the transverse tube are transparent; one end of the longitudinal pipe is connected with the transverse pipe, and the other end is open.
Further, the longitudinal pipe is fixedly connected with the first cross rod and the vertical rod; the first cross rod and the second cross rod pass through the transverse tube and are movably connected with the transverse tube; an anti-slip layer is arranged in the transverse tube.
Further, the supporting hooks are bent plates, and the supporting hooks comprise grooves.
Further, the cantilever is a universal movable cantilever.
Further, the cantilever seat can slide or rotate on the second cross rod, and a locking screw is arranged on the cantilever seat, penetrates through the cantilever seat and is connected with the second cross rod.
Compared with the prior art, the utility model has at least one of the following beneficial effects:
(1) The support provided by the utility model can adjust the length and width of the cross rod in the horizontal direction and also can adjust the height in the vertical direction, and the support can adapt to different body type requirements and different use environment requirements of experimental animals;
(2) The universal movable cantilever can be bent at any curvature, hovered and fixed at any time, so that the supporting hooks can be positioned and kept fixed, and the maximum operation convenience can be provided for operators;
(3) The supporting hooks can adjust positions in six directions of up, down, left, right, front and back so as to adapt to the operation requirements of different body types and postures of experimental animals, and meanwhile, the supporting hooks ensure the positioning of diaphysis, so that the fixing and lifting of limbs of the experimental animals are completed;
(4) The supporting hook can also isolate diaphysis and soft tissues, form an operation field at the fracture part, reduce collateral damage during fracture and osteotomy operation and ensure successful operation.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
figure 2 is a schematic view of the overall construction of the support assembly.
Reference numerals:
1-a first cross bar; 2-standing a pole; 3-a second cross bar; 4-a support assembly; 5-a ferrule; 6-tee joint; 7-a supporting hook; 8-cantilever; 9-cantilever base; 10-grooves; 11-locking screws.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
In one embodiment of the present utility model, as shown in fig. 1, a universal molding apparatus for fracture and bone defect of mice is disclosed, comprising a bracket and a supporting component 4, wherein the supporting component 4 is arranged on the bracket, and the supporting component is used for supporting forelimbs and hindlimbs of experimental animals and is used for molding fracture and bone defect.
Preferably, the bracket comprises a plurality of first cross bars 1, a plurality of vertical bars 2 and a second cross bar 3, wherein the plurality of first cross bars 1 are connected with each other, one end of each vertical bar 2 is connected with the first cross bar 1, and the other end of each vertical bar 2 is connected with the second cross bar 3.
Preferably, the first crossbar 1, the uprights 2 and the second crossbar 3 are telescopic. The length of the first cross rod 1 and the length of the second cross rod 3 can be adjusted, and the height of the vertical rod 2 can be adjusted. The support can adjust length and width in the horizontal direction, also can adjust height in the vertical direction to adapt to the different body types requirement and the different service environment requirement of experimental animal.
Preferably, the first cross bar 1, the upright 2 and the second cross bar 3 each comprise a strut and a sleeve, the struts being arranged in the sleeve, the struts being extendable and retractable in the sleeve, the struts and the sleeve forming a telescopic rod.
Preferably, the first cross bar 1, the upright 2 and the second cross bar 3 all comprise a hoop 5, the hoop 5 is movably connected with one end of the sleeve, and the hoop 5 is used for adjusting the extension of the telescopic rod and fixing the adjusted length of the telescopic rod.
Preferably, the supporting rod is a straight rod, can stretch and retract along a straight line in the sleeve, one end of the sleeve is provided with external threads (not shown in the figure), the sleeve hoop 5 is provided with internal threads, and the supporting rod can stretch and retract after the sleeve hoop 5 is unscrewed; after the hoop 5 is screwed, the supporting rod and the sleeve are locked, and the supporting rod cannot stretch or retract.
Alternatively, the rod may be provided with external threads (not shown), the ferrule 5 may be provided with internal threads, the ferrule 5 may be rotated, and the rod may be telescoped within the sleeve.
Preferably, the first cross bar 1, the upright 2 and the second cross bar 3 are connected by a tee joint 6. The tee joint 6 is T-shaped and comprises a transverse pipe and a longitudinal pipe; the two ends of the transverse tube are transparent; one end of the longitudinal pipe is connected with the transverse pipe, and the other end is open.
The longitudinal pipe is fixedly connected with the first cross rod 1 and the upright rod 2, so that the first cross rod 1 and the upright rod 2 are prevented from being separated from the tee joint 6; the first cross rod 1 and the second cross rod 3 pass through the transverse pipe and are movably connected with the transverse pipe.
Preferably, an anti-slip layer is arranged in the transverse tube, and damping is arranged while the transverse tube is movably connected with the first transverse rod 1 and the second transverse rod 3, so that sliding displacement of the transverse tube, the first transverse rod 1 and the second transverse rod 3 is prevented.
Preferably, as shown in fig. 2, the support assembly 4 comprises a hook 7, a cantilever arm 8 and a cantilever arm seat 9, one end of the cantilever arm 8 being connected to the hook 7 and the other end of the cantilever arm 8 being connected to the cantilever arm seat 9.
Preferably, the supporting hooks 7 are plate-shaped, further, the supporting hooks 7 are bent plates, and the supporting hooks 7 are used for supporting limbs of experimental animals and isolating diaphysis and soft tissues.
Preferably, the hook 7 comprises a groove 10.
Preferably, the groove 10 is a groove, and comprises a hollow part with one end open, wherein the hollow part leaves an operation space for the surgical instrument, so that the surgical instrument can conveniently run down the backbone; alternatively, the groove 10 is a groove, and comprises a hollow part with two open ends, so that the operation of penetrating the diaphysis under the surgical instrument is facilitated, and soft tissues isolated by the supporting hooks 7 can be observed through the groove.
Preferably, the cantilever 8 is a universal movable cantilever, can be bent at any curvature, hovers and is fixed at any time, so that the supporting hooks 7 can be positioned and kept fixed conveniently.
Preferably, the supporting hook 7 is connected with the cantilever 8 through a ball-and-socket pair, and the supporting hook 7 can flexibly rotate relative to the cantilever 8.
Preferably, the cantilever seat 9 is arranged on the second cross rod 3, the cantilever seat 9 can slide or rotate on the second cross rod 3, and then the cantilever 8 and the supporting hook 7 are driven to move along the second cross rod 3, and the supporting hook 7 can adjust positions in six directions up, down, left, right, front, back and the like so as to adapt to the operation requirements of different body types and postures of experimental animals.
Preferably, the cantilever seat 9 is provided with a locking screw 11, the locking screw 11 penetrates through the cantilever seat 9 and is connected with the second cross rod 3, the locking screw 11 is loosened, and the cantilever seat 9 can slide or rotate on the second cross rod 3; the locking screw 11 is screwed, and the cantilever seat 9 is fixed on the second cross bar 3, so that the position of the cantilever 8 is fixed.
Preferably, there are more than two second rails 3, and one support assembly 4 is provided on each second rail 3.
When in use, firstly, 4 first cross bars 1 are installed, and the adjusting hoops 5 form a bottom layer framework which is matched with the limb of the operation; secondly, according to the height of the limbs of the tested small animal, the position and the height of the vertical rod are adjusted to be slightly higher than the limbs, and after confirmation, the hoop 5 of the second cross rod 3 is rotated to fasten the second cross rod 3; when the operation incision is opened and the diaphysis is separated, the operator holds one end of the hook 7 to cling to the diaphysis along the radian of the diaphysis and wind close to half a circle, namely, the hook passes through the diaphysis from the opposite side of the operation field to the opposite side of the operation field so as to protect blood vessels and nerves passing under the diaphysis and not to influence operation above the diaphysis; finally, after adjusting the supporting hook 7, if the cantilever 8 obstructs the operation, the whole height of the bracket or the position of the cantilever seat 9 can be adjusted again to adapt to the depth of the operation incision and the exposure requirement of the operation field, and after confirming that the operation is not obstructed, the locking screw 11 is screwed to fix the cantilever seat 9.
Compared with the prior art, the support provided by the utility model can adjust the length and width of the cross rod in the horizontal direction and also can adjust the height in the vertical direction, and can adapt to different body type requirements and different use environment requirements of experimental animals; the cantilever 8 can be bent at any curvature and hovered and fixed at any time, so that the supporting hooks 7 can be positioned and the fixing of the supporting hooks 7 can be kept, and the maximum operation convenience can be provided for operators; the supporting hooks 7 can adjust positions in six directions up, down, left, right, front and back so as to adapt to the operation requirements of different body types and postures of experimental animals, and meanwhile, the supporting hooks 7 ensure the positioning of diaphysis, so that the fixing and lifting of limbs of the experimental animals are completed; the supporting hook 7 can also isolate diaphysis and soft tissues, form an operation field at the fracture part, reduce collateral damage during fracture and osteotomy operation and ensure successful operation.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. The utility model relates to a universal model making device for the fracture and bone defect of a rat and a mouse, which is characterized by comprising a bracket and a bearing component (4), wherein the bearing component (4) is arranged on the bracket;
the support comprises a plurality of first cross bars (1), a plurality of vertical rods (2) and a second cross bar (3), wherein the plurality of first cross bars (1) are connected with each other, one end of each vertical rod (2) is connected with the corresponding first cross bar (1), and the other end of each vertical rod (2) is connected with the corresponding second cross bar (3);
the first cross rod (1), the vertical rod (2) and the second cross rod (3) are telescopic rods;
the bearing assembly (4) comprises a supporting hook (7), a cantilever (8) and a cantilever seat (9), one end of the cantilever (8) is connected with the supporting hook (7), the other end of the cantilever (8) is connected with the cantilever seat (9), and the cantilever seat (9) is arranged on the second cross rod (3);
the supporting hooks (7) are used for supporting forelimbs and hind limbs of experimental animals to perform fracture and bone defect modeling.
2. The universal mouse bone fracture and bone defect modeling apparatus of claim 1, wherein the telescoping rod comprises a rod and a sleeve, the rod being disposed within the sleeve, the rod being extendable and retractable within the sleeve.
3. The universal mouse and rat fracture and bone defect modeling apparatus of claim 2, wherein the telescopic rod further comprises a cuff (5), the cuff (5) being movably connected with one end of the sleeve.
4. A universal mould apparatus for the fracture and bone defect of mice according to claim 3, wherein the supporting rod is a straight rod which can be linearly stretched in the sleeve, one end of the sleeve is provided with external threads, the sleeve (5) is provided with internal threads, and the sleeve (5) can relax and lock the positions of the supporting rod and the sleeve.
5. A universal mould apparatus for the fracture and bone defect of mice according to claim 3, wherein the supporting rod is provided with external threads, the hoop (5) is provided with internal threads, and the supporting rod can stretch and retract in the sleeve by rotating the hoop (5).
6. The universal large and small mouse fracture and bone defect modeling apparatus according to claim 1, wherein the bracket further comprises a tee joint (6), and the first cross bar (1), the upright (2) and the second cross bar (3) are connected through the tee joint (6); the tee joint (6) is T-shaped, and the tee joint (6) comprises a transverse pipe and a longitudinal pipe; the two ends of the transverse tube are transparent; one end of the longitudinal pipe is connected with the transverse pipe, and the other end is open.
7. The universal large and small mouse fracture and bone defect modeling apparatus according to claim 6, wherein the longitudinal tube is fixedly connected with the first transverse rod (1) and the upright rod (2); the first cross rod (1) and the second cross rod (3) penetrate through the transverse tube and are movably connected with the transverse tube; an anti-slip layer is arranged in the transverse tube.
8. The universal type device for molding fracture and bone defect of mice according to claim 1, wherein the supporting hook (7) is a bent plate, and the supporting hook (7) comprises a groove (10).
9. A universal large and small mouse fracture and bone defect modeling apparatus according to claim 1, characterized in that the cantilever (8) is a universal movable cantilever.
10. The universal large and small mouse fracture and bone defect modeling apparatus according to claim 1, wherein the cantilever seat (9) can slide or rotate on the second cross rod (3), a locking screw (11) is arranged on the cantilever seat (9), and the locking screw (11) penetrates through the cantilever seat (9) and is connected with the second cross rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320353516.9U CN219538562U (en) | 2023-02-20 | 2023-02-20 | Universal type large and small mouse fracture and bone defect modeling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320353516.9U CN219538562U (en) | 2023-02-20 | 2023-02-20 | Universal type large and small mouse fracture and bone defect modeling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219538562U true CN219538562U (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320353516.9U Active CN219538562U (en) | 2023-02-20 | 2023-02-20 | Universal type large and small mouse fracture and bone defect modeling apparatus |
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| Country | Link |
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| CN (1) | CN219538562U (en) |
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- 2023-02-20 CN CN202320353516.9U patent/CN219538562U/en active Active
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