CN209107662U - The mechanical operation platform of accuracy manufacture rat femur bone nonunion model - Google Patents

Abstract

The utility model relates to a mechanical operation platform for accurately manufacturing a rat femoral nonunion model. The operation platform is provided with a base, an operation table, a fixture, a pitching table, a rotating table, a front-rear translation table, and a left-right translation table; the The base is provided with a support column; the operation table is supported by the support column; the fixing fixture is fixed on the side of the operation table; the movable fixture is fixed on the pitching table; the pitching table is fixed on the rotating table; The stage is fixed on the front and rear translation stages; the front and rear translation stages are fixed on the left and right translation stages; the left and right translation stages are fixed on the base. The advantages are: the utility model is used to manufacture rat femoral nonunion models, helps medical staff and scientific researchers to study the characteristics of nonunion, can manufacture four types of nonunion models, can meet various needs and is convenient to use. Using the mechanical structure, instead of the empirical operation of the human hand, can accurately and standardize the displacement of the fracture end or the rotation angle, and accurately manufacture the required nonunion model.

Description

A mechanical surgical platform for the precise fabrication of a rat femoral nonunion model

technical field

The utility model relates to the field of medical research, in particular to a mechanical operation platform for accurately manufacturing a rat femoral nonunion model.

Background technique

Fractures are a common clinical disease that often brings great pain to patients. After a fracture occurs, 9% of the patients have nonunion due to poor recovery due to various reasons, causing further disability and serious social impact. Therefore, the research on fracture and nonunion has important social significance.

In the study of fracture and nonunion, the most important premise is the establishment of a standard fracture model. By creating highly reproducible fracture defects with the same position, the same degree of movement of the broken end, and the same degree of soft tissue damage in the same part of the animals in different experimental groups, the position and strength of the fracture are relatively controllable, so as to achieve the study of fracture and nonunion specialty. In the current animal research, the rat is the most common laboratory animal and is widely used in various fracture studies. However, individual differences in animals, different modeling methods, and difficulty in controlling the accuracy of modeling restrict the study of fractures and nonunions.

Therefore, a stable and reusable fracture preparation device is needed to ensure the controllability of the experiment. At present, the devices for making fractures can be divided into internal fixation and external fixation according to the type of fracture fixation. The internal fixation device is mainly based on the model proposed by Einhorn in 1984. Although this device can reduce soft tissue damage, the device is more complicated. The external fixation type is used to fix the target bone in vitro, but it needs to be installed on the experimental animal all the time, the cost is high, the normal activities of the animal are affected, and the operation is relatively cumbersome.

Chinese patent document CN: CN201710652410.8, discloses a fracture model preparation device for animal experiments. The structure includes a base, a support plate, two supporting lateral columns, a force applying mechanism and two supporting sheets. The supporting lateral columns are symmetrically fixed. On the base, the support plate is horizontally installed between the columns on both sides, and the force applying mechanism consists of two spring sleeve rods vertically fixed on the support plate, and two spring sleeve rods respectively sleeved on the two spring sleeve rods with the same specifications It is composed of a spring, a weight bearing plate and a force application rod. The force application rod vertically passes through the weight bearing plate and is fixed. The weight bearing plate is sleeved on the two spring sleeve rods, supported by the spring, and the axis of the force application rod. The axes of the two spring sleeve rods are on the same vertical plane and are equidistant from the two spring sleeve rods. The lower end of the force application rod can movably pass through the corresponding perforations on the support plate, and the two support pieces can be installed relative to each other. on the base. The utility model realizes the manufacture of fracture sites with relatively consistent positions, and reduces soft tissue trauma to a certain extent. However, there is no disclosure about a stable and reusable fracture model manufacturing apparatus that can manufacture a variety of different fractures.

In summary, there is an urgent need for an easy-to-use and stable fracture preparation device, which can manufacture a variety of different fracture models, and has high accuracy, high repeatability, and standardized fracture conditions for different subjects. The instrument has not yet been reported.

SUMMARY OF THE INVENTION

The purpose of this utility model is to aim at the deficiencies in the prior art, to provide a solution to clinical practical problems, to develop a corresponding mechanical auxiliary device on the basis of the mechanical power research platform, and to complete the experimental animal model represented by rats. Batch and precise modeling can solve the problems of instability and difference in the process of animal model building.

For realizing the above-mentioned purpose, the technical scheme that the utility model takes is:

A mechanical surgical platform for accurately manufacturing a rat femoral nonunion model, the surgical platform is provided with a base, an operating table, a fixture, a pitching table, a rotating table, a front-rear translation stage, and a left-right translation stage; the base is provided with a support column ; the support column is fixed on the base; the operation table is supported by the support column, located above the base, and the operation table is fixedly connected with the support column; the clamp is provided with a fixed clamp and a movable clamp; the fixed clamp is fixed on the operation The side of the platform; the pitching stage is provided with a pitching stage handle, a pitching stage support plate, a pitching stage fixed part, and a pitching stage movable part; the movable clamp is connected with the pitching stage movable part by bolts; the pitching stage movable part is connected with the pitching stage The fixed part is connected by movement; the rotary table is provided with a rotary table base, a rotary table handle, a rotary table fixed plate, a rotary table fixed part, and a rotary table movable part; the rotary table fixed plate is fixed on the rotary table base by bolts; The fixed part of the rotary table is fixed on the fixed plate of the rotary table by bolts; the movable part of the rotary table is movably connected with the fixed part of the rotary table; slide rail; the rotary table base is connected with the front and rear translation table rotating shafts through gears, and the rotary table base is articulated with the front and rear translation table sliding rails; the front and rear translation table handles are connected with the front and rear translation table rotating shafts; the left and right translation tables are provided with left and right The translation stage handle, the left and right translation stage shafts, and the left and right translation stage slide rails; the front and rear translation stages are movably connected with the left and right translation stage rotation shafts, and the front and rear translation stages are articulated with the left and right translation stage slide rails; the left and right translation stage handles are connected with the left and right translation stages. The shaft is fixedly connected.

As a preferred solution, the pitch stage, the rotation stage, the front and rear translation stages, and the left and right translation stages are active parts, and their motion priorities are gradually improved.

As a preferred solution, there are four support columns.

As a preferred solution, the movable clamp and the jaws of the fixed clamp are located on the same axis.

As a preferred solution, the movable part of the pitching table can be rotated through the movable connection part with the fixed part of the pitching table, the rotation track is arc-shaped, the axis of the rotary motion is a straight line, parallel to the base, and passes through the movable clamp. The jaw position is point A.

As a preferred solution, the movable part of the rotary table can be rotated through a movable connection structure with the fixed part of the rotary table, the rotation track is arc-shaped, the axis is a straight line perpendicular to the base, and passes through point A of the clamp mouth of the movable clamp.

As a preferred solution, the rotary table base is movably connected with the front and rear translation table rotating shafts through gears.

As a preferred solution, the front and rear translation stages are movably connected with the rotation shafts of the left and right translation stages through gears.

The utility model has the advantages of:

1. The mechanical operation platform of the present utility model accurately manufactures the rat femoral nonunion model, focusing on the manufacture of the nonunion model, which can realize the precise dislocation of the limbs at both ends of the thigh wound after the rat operation, so that it can be divided into four types. The situation is standardized and the nonunion model is accurately fabricated.

2. There are four kinds of mobile devices of the present invention, which can manufacture four kinds of nonunion models, namely normal dislocation nonunion model, axial separation nonunion model, axial rotation dislocation nonunion model and angled nonunion model. Nonunion model. It can meet various needs and is easy to use.

3. Using the mechanical structure to replace the experience operation of the human hand, the displacement of the fracture end or the rotation angle can be precise, and the required nonunion model can be accurately manufactured.

Description of drawings

1 is a schematic diagram of the overall structure of the mechanical operation platform of the present invention for accurately manufacturing a rat femoral nonunion model.

Figure 2 is a schematic diagram of the structure of the pitching platform.

Figure 3 is a schematic view of the structure of the rotary table.

Figure 4 is a schematic structural diagram of the front and rear translation stages.

Figure 5 is a schematic diagram of the structure of the left and right translation stage.

Figure 6 is a schematic diagram of the rotation axis of the pitch table.

Figure 7 is a schematic diagram of the axis of the rotary table.

Detailed ways

The specific embodiments provided by the present utility model will be described in detail below with reference to the accompanying drawings.

The reference numerals and components involved in the drawings are as follows:

1. Base 11. Support column

2. Operating table 3. Fixture

31. Fixed fixture 32. Active fixture

4. Tilt table 41. Tilt table handle

42. Elevating table support plate 43. Elevating table fixing part

44. Elevating table movable part 5. Rotary table

51. Rotary table base 52. Rotary table handle

53. Rotary table fixing plate 54. Rotary table fixing part

55. Rotary table movable part 6. Front and rear translation table

61. Front and rear translation stage handle 62. Front and rear translation stage shaft

63. Front and rear translation stage slide rails 7. Left and right translation stage

71. Left and right translation stage handle 72. Left and right translation stage shaft

73. Left and right translation table slides

Example 1

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of the overall structure of a mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to the present invention. The operating platform is provided with a base 1, an operating table 2, a fixture 3, a pitching table 4, a rotating table 5, a front and rear translation table 6, and a left and right translation table 7; the base is provided with a support column 11; the support column 11 is fixed on the base 1; the operation table 2 is supported by the support column 11 and is located above the base 1, and the operation table 2 is fixedly connected with the support column 11; the fixture 3 is provided with a fixed fixture 31 and a movable fixture 32; the fixed fixture 31 is fixed on the side of the operating table 2; the movable fixture 32 is fixed on the pitching table 4; the pitching table 4 is fixed on the rotating table 5; the rotating table 5 is fixed on the front and rear translation stages 6; 6 is fixed on the left and right translation stage 7 ; the left and right translation stage is fixed on the base 1 .

Please refer to FIG. 2 , the pitch stage 4 is provided with a pitch stage handle 41, a pitch stage support plate 42, a pitch stage fixed portion 43, and a pitch stage movable portion 44; the movable fixture 32 is connected with the pitch stage movable portion 44 by bolts; The movable part 44 of the pitching table and the fixing part 43 of the pitching table are movably connected by sliding guide rails.

Please refer to FIG. 3 , the rotary table 5 is provided with a rotary table base 51 , a rotary table handle 52 , a rotary table fixing plate 53 , a rotary table fixing part 54 , and a rotary table movable part 55 ; the rotary table fixing plate 53 is fixed by bolts On the rotary table base 51 ; the rotary table fixed part 54 is fixed on the rotary table fixed plate 53 by bolts; the rotary table movable part 55 is connected with the rotary table fixed part 54 by sliding guide rails.

4 , the front and rear translation stages 6 are provided with front and rear translation stage handles 61, front and rear translation stage rotation shafts 62, and front and rear translation stage slide rails 63; the rotation stage base 51 is connected with the front and rear translation stage rotation shafts 62 through gears. The base 51 is articulated with the front and rear translation stage slide rails 63 ; the front and rear translation stage handles 61 are connected with the front and rear translation stage rotation shafts 62 .

Please refer to FIG. 5 , the left and right translation stage 7 is provided with a left and right translation stage handle 71, a left and right translation stage rotation shaft 72, and a left and right translation stage slide rail 73; The stage 6 is articulated with the left and right translation stage slide rails 73 ; the left and right translation stage handle 71 is connected with the left and right translation stage rotation shaft 72 .

It should be noted:

Described pitching stage 4, rotating stage 5, front and rear translation stage 6, left and right translation stage 7 are movable parts, and their common purpose is to drive movable fixture 32 to move, and its priority is gradually improved, and left and right translation stage 7 can drive front and rear translation stage 6 , Rotary stage 5, and pitching stage 4 move synchronously, the front and rear translation stage 6 can drive the rotating stage 5, the pitching stage 4 to move, and the rotary stage 5 can drive the pitching stage 4 to move.

The base 1 should be placed on a clean, hygienic and level desktop to support the console 2 and the left and right translation stages 7; the support columns 11 have four; the movable clamps 32 and the jaws of the fixed clamps 31 are located on the same axis superior.

Please refer to FIG. 6 , the movable part 44 of the pitching table can be rotated through the movable connection part with the fixing part 43 of the pitching table, the rotation track is arc-shaped, the axis is a straight line, and is parallel to the base 1 , passing through the clamp of the movable clamp 32 Oral location point A; it is worth noting that the axis is virtual and not a structural part of the surgical platform.

Please refer to FIG. 7 , the movable part 55 of the rotary table can be rotated through the movable connection structure with the fixed part 54 of the rotary table, the rotation track is arc-shaped, the axis (not shown) is a straight line perpendicular to the base 1, Clamp 32 jaw point A.

The front and rear translation stage handles 61 can be twisted by force to drive the front and rear translation stage shafts 62 to rotate, and the front and rear translation stage rotation shafts 62 are connected with the rotary table base 51 through gears, which can drive the rotary table base 51 on the front and rear translation stage slide rails. The left and right translation stage handles 71 are connected with the left and right translation stage shafts 72, and the left and right translation stage handles 71 can be twisted to drive the left and right translation stage shafts 72 to rotate, and then drive the front and rear translation stages 6 on the left and right translation stage slide rails 73. slide.

The use method of the mechanical operation platform for accurately manufacturing the rat femoral nonunion model of the utility model:

First, place a sterile surgical drape on the operating table, and place the rat on the drape. The rat is lying on the operating table in a supine position, the head is away from the fixture 3, and the left and right translation table handles 71 are rotated at the same time, so that the movable fixture 32 is close to the fixed fixture 31, and the hind limbs on the operation side are lifted and clamped between the fixed fixture 31 and the movable fixture 32. In the middle, the fixing jig 31 is a manual flat-nose forceps, which clamps one end of the rat's hind leg near the pelvis. The movable clamp 32 is also a manual flat-nose pliers, and clamps the thigh and knee. The ideal surgical incision is exposed between the two clamps, and the exposed width is approximately the width of the scalpel blade.

In the second step, when the rat's thigh is fixed, use a scalpel to cut out an incision. The translation or rotation of each platform can drive the movement of other platforms, thereby driving the lower side of the rat's hind limb incision to move relative to the upper side. . The lower side of the incision is the part below the hind limb incision, including knees, calves, etc., and the upper side of the incision is the part above the thigh, which is fixed on the operating table 2 by the fixing fixture 31 . The movement types of the lower side of the incision relative to the upper side are divided into four types, namely the axial rotation generated by the pitch table 4, the left and right swing rotation generated by the rotary table 5, the displacement in the normal direction of the front and rear translation stages 6, and the axis of the left and right translation stages. The axial direction is the axial direction of the rat thigh bone, and the normal line is the horizontal direction perpendicular to the axis. In this way, four artificial nonunion models were generated in turn: axial rotational dislocation, angled dislocation of limbs on both sides of the incision, dislocation along the normal direction on both sides of the incision, and axial displacement dislocation.

The utility model accurately manufactures the mechanical operation platform for the rat femoral nonunion model, focusing on the manufacture of the nonunion model, and can realize the precise dislocation of the limbs at both ends of the thigh wound after the rat operation, so that it can be standardized in four cases. , and accurately model nonunion. There are four kinds of moving devices in the utility model, which can manufacture four kinds of nonunion models, namely normal dislocation nonunion model, axial separation nonunion model, axial rotation dislocation nonunion model and angled nonunion model. even model. It can meet various needs and is easy to use. Using the mechanical structure, instead of the experience operation of the human hand, the displacement or rotation angle of the fracture end can be precise, and the required nonunion model can be accurately manufactured.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the method of the present invention, several improvements and supplements can be made. These improvements and supplements are also It should be regarded as the protection scope of the present invention.

Claims (8)

1. a mechanical surgical platform for accurately manufacturing a rat femoral nonunion model, characterized in that the surgical platform is provided with a base, an operating table, a fixture, a pitching table, a rotating table, a front-rear translation table, a left-right translation table; The base is provided with a support column; the support column is fixed on the base; the operation table is supported by the support column, located above the base, and the operation table is fixedly connected with the support column; the fixture is provided with a fixed fixture and a movable fixture ; the fixing fixture is fixed on the side of the operating table; the pitching stage is provided with a pitching stage handle, a pitching stage supporting plate, a pitching stage fixed part, and a pitching stage movable part; the movable fixture and the pitching stage movable part are connected by bolts; The movable part of the pitching table is movably connected with the fixing part of the pitching table; the rotary table is provided with a rotary table base, a rotary table handle, a rotary table fixing plate, a rotary table fixing part, and a rotary table movable part; the rotary table fixing plate is provided with bolts Fixed on the base of the rotary table; the fixed part of the rotary table is fixed on the fixed plate of the rotary table by bolts; the movable part of the rotary table is movably connected with the fixed part of the rotary table; The rotation axis of the translation table and the slide rails of the front and rear translation tables; the base of the rotation table is movably connected with the rotation shaft of the front and rear translation tables, and the base of the rotation table is articulated with the sliding rails of the front and rear translation tables; the handle of the front and rear translation tables is connected with the rotation shaft of the front and rear translation tables; The left and right translation stages are provided with left and right translation stage handles, left and right translation stage rotation shafts, and left and right translation stage slide rails; the front and rear translation stages are movably connected with the left and right translation stage rotation shafts, and the front and rear translation stages are articulated with the left and right translation stage slide rails; The table handle is fixedly connected with the left and right translation table rotating shafts. 2 . The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1 , wherein the pitching table, the rotating table, the front-rear translation stage, and the left-right translation stage are movable parts. 3 . 3 . The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1 , wherein there are four support columns. 4 . 4 . The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1 , wherein the movable clamp and the jaws of the fixed clamp are located on the same axis. 5 . 5. The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1, wherein the movable part of the pitching table can be rotated through the movable connection part with the fixed part of the pitching table, and the rotation track It is arc-shaped, and the axis of rotation is a straight line, which is parallel to the base and passes through the jaw position A of the movable clamp. 6. The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1, wherein the movable part of the rotary table can be rotated through the movable connection structure with the fixed part of the rotary table, and the rotation track It is arc-shaped, and the axis is a straight line perpendicular to the base, and passes through point A of the jaw of the movable clamp. 7 . The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1 , wherein the base of the rotary table and the rotation shaft of the front and rear translation tables are movably connected through gears. 8 . 8 . The mechanical operation platform for accurately manufacturing a rat femoral nonunion model according to claim 1 , wherein the front and rear translation stages and the rotation shafts of the left and right translation stages are movably connected through gears. 9 .