A multi-angle packaging sample preparation device for hip joint specimens

Abstract

The present invention belongs to the technical field of surgical implant testing, and discloses a multi-angle packaging sample preparation device for hip joint specimens, including a packaging device, an angle adjustment device, a neck embedding tool, and a handle embedding tool; in the packaging of the neck of the hip bone specimen, the packaging device, the angle adjustment device and the neck embedding tool are used in conjunction with each other; in the packaging of the handle of the hip bone specimen, the packaging device and the handle embedding tool are used in conjunction with each other. The present invention can achieve multi-angle adjustment of the anteversion angle, deflection angle and embedding plane of the hip bone specimen, adapt to various situations that may exist in the hip bone in the human body, and meet the fatigue performance test and performance requirements of the neck and handle of the femoral component with a handle; and has the characteristics of reliable connection and convenient operation.

Description

Technical Field

[0001] The invention belongs to the technical field of surgical implant testing, and in particular relates to a multi-angle packaging sample preparation device for hip joint samples. Background Art

[0002] With the development and progress of society and the accelerated pace of people's lives, the number of people suffering from orthopedic diseases has increased year by year. Various hip joint diseases and injuries caused by factors such as diseases, sports injuries and aging have seriously affected people's quality of life, and artificial total hip replacement has become the main way to treat hip joint diseases. Artificial hip joints can replace the original joints, but the mid- and long-term effects after replacement surgery are not ideal. Therefore, appropriate mechanical properties and fatigue performance tests are needed to evaluate the stability and safety of artificial hip joints during work.

[0003] The working environment of the human hip joint is complex inside the human body. The different growth angles of the human hip joint should be considered in the test and it should be encapsulated in the appropriate medium. The national medical industry standard YY / T 0819 "Surgical implant parts and total hip prostheses" Part 4: Fatigue performance test and performance requirements of stemmed femoral components, and Part 6: Fatigue performance test and performance requirements of stemmed femoral components neck, stipulates the packaging details of the human hip joint, requiring the hip specimen to have a certain anteversion angle and deflection angle in the stem test, and a certain embedding plane angle in the neck test.

[0004] However, the existing hip bone specimen packaging device only has an angle ruler to adjust the forward tilt angle of the specimen, but no reasonable solution is found to adjust the deflection angle and the embedding plane angle. In addition, the existing hip bone specimen packaging device is bolted as a whole, resulting in a complex structure and cumbersome operation. Therefore, in order to meet the standard requirements, it is urgent to develop a simple and easy packaging device. Summary of the invention

[0005] The present invention aims to solve relevant technical problems of hip bone specimen performance testing and provides a multi-angle packaging sample preparation device for hip joint specimens, which can realize the adjustment of the anteversion angle and deflection angle of the hip bone specimen and the anteversion angle and deflection angle of the embedding plane, adapt to various situations that may exist in the hip bone in the human body, and meet the fatigue performance test and performance requirements of the neck and handle of the femoral component with a handle; at the same time, it has the characteristics of reliable connection, simple structure and convenient operation.

[0006] In order to solve the above technical problems, the present invention is implemented by the following technical solutions:

[0007] The present invention provides a multi-angle packaging sample preparation device for hip joint specimens, comprising a neck embedding tool and a handle embedding tool, and also comprising a packaging device and an angle adjustment device;

[0008] The packaging device includes a base plate, the surface of the base plate is used to install the handle embedding tooling or the angle adjustment device, and one end of the base plate surface is fixedly installed with a column; the column is provided with a fixed block, and the fixed block can slide and be fixed along the column; the fixed block is installed with a connecting shaft and a main viewing semicircular instrument; one end of the connecting shaft is hinged to the upper part of the fixed block so that it can rotate in a vertical plane with the hinge point as the center of the circle, and an angle pointer is fixed on the end face of the other end; the main viewing semicircular instrument is a semicircular ring sheet body, which is provided with a semicircular ring groove and angle scales are marked along the semicircular ring groove; one end of the main viewing semicircular instrument is fixed to the lower part of the fixed block and can move along the column together with the fixed block; a first knurled high head screw is passed through the semicircular ring groove, and the first knurled high head screw connects the main viewing semicircular instrument to the middle of the connecting shaft; by loosening the first knurled high head screw The connecting shaft can be rotated in a vertical plane, and the connecting shaft and the main view semicircular meter can be fixed by locking the first knurled high head screw, and the scale of the connecting shaft at the angle of the main view semicircular meter is read according to the first knurled high head screw to determine the anteversion angle of the hip bone specimen; the end of the connecting shaft fixed with the angle pointer is also connected to a semicircular angle ruler and a hip chuck, and the plug bolt passes through the hip chuck, the semicircular angle ruler, and the angle pointer in sequence and is locked and fixed with the end of the connecting shaft, and the hip chuck is equipped with a fixing screw for tightening the plug bolt; the hip chuck fixes the hip bone specimen by hand-tightening bolts on both sides; the plug bolt can realize the rotation of the semicircular angle ruler and the hip chuck around the axis of the connecting shaft, and the scale of the semicircular angle ruler is read according to the angle pointer to determine the deflection angle of the hip bone specimen;

[0009] The angle adjustment device comprises an angle adjustment mechanism base, the angle adjustment mechanism base comprises a base and side plates arranged on both sides of the base; one of the side plates of the angle adjustment mechanism base is provided with a hollow arc track, the arc track is used to pass a second knurled high-head screw; an adjustment platform is arranged inside the angle adjustment mechanism base, the adjustment platform is a semi-cylindrical structure, and is installed in the space surrounded by the bottom plate and two side plates of the angle adjustment mechanism base with the flat surface facing upward and the curved surface facing downward; the two sides of the adjustment platform are connected to the two side plates of the angle adjustment mechanism base by threaded cylindrical pins respectively, so that the adjustment platform can rotate inside the angle adjustment mechanism base with the threaded cylindrical pin as the axis; the adjustment An angle scale is provided on the side of the section platform, and the angle scale is exposed through the circular arc track; the second knurled high head screw passes through the circular arc track and is fixedly connected to the adjustment platform, and the rotation angle of the adjustment platform can be adjusted by moving the second knurled high head screw along the circular arc track, and the current angle scale can be read to determine the forward tilt angle of the embedding plane; a pad is fixedly connected to the plane on the top of the adjustment platform, the lower surface of the pad is a plane, and the upper surface is inclined from one side of the adjustment platform to the other side; by selecting different pads, embedding planes with different deflection angles can be obtained; the upper surface of the pad is fixedly connected to a packaging adjustment mounting plate; the upper surface of the packaging adjustment mounting plate is connected to the neck embedding tooling;

[0010] In the neck packaging of the hip bone specimen, the packaging device, the angle adjustment device and the neck embedding tool are used in conjunction with each other; the neck embedding tool is installed on the upper part of the angle adjustment device, and the angle adjustment device is installed on the bottom plate surface of the packaging device;

[0011] In the packaging of the hip bone specimen handle, the packaging device is used in conjunction with the handle embedding tool; the handle embedding tool is installed on the bottom plate surface of the packaging device.

[0012] Furthermore, a slide rail is provided on the surface of the bottom plate for cooperating with a slide groove provided on the bottom of the handle embedding tooling and the bottom of the angle adjustment mechanism base, so that the handle embedding tooling and the angle adjustment device can be fixed after adjusting their positions on the surface of the bottom plate.

[0013] Furthermore, the bottom of the column is fixedly connected to the base plate via a fixing plate.

[0014] Furthermore, a through-length groove is provided on one side of the column, and a height adjustment bolt passes through the fixing block and is stuck in the through-length groove, so that the fixing block can slide and be fixed along the column.

[0015] Furthermore, a top cover is fixed to the top of the column, and the top cover is used to prevent the fixing block from slipping off.

[0016] Furthermore, the hip chuck includes an integrally formed base and two oppositely disposed side plates, and the two side plates are respectively installed with the hand bolts so that the head of the hip bone specimen is placed between the two hand bolts and locked and fixed.

[0017] Furthermore, the curved surface at the bottom of the adjustment platform is provided with gear teeth, and the gear teeth are interference fit with the driving gear, and the driving gear is located between the gear teeth of the adjustment platform and the base of the angle adjustment mechanism base; the two ends of the driving gear are respectively connected to the two side surfaces of the angle adjustment mechanism base through miniature bearings; the miniature bearing is equipped with a knurled threaded cylindrical pin for connecting the driving gear and the angle adjustment mechanism base.

[0018] Furthermore, a slide rail is provided on the surface of the packaging adjustment mounting plate for cooperating with a slide groove provided at the bottom of the neck embedding tooling, so that the neck embedding tooling can be fixed after the position is adjusted on the surface of the packaging adjustment mounting plate.

[0019] The beneficial effects of the present invention are:

[0020] (a) The multi-angle packaging sample preparation device for hip joint specimens of the present invention can realize that the hip chuck is at different heights in the vertical direction through the packaging device, thereby being able to adapt to various types of hip bone specimens and freely adjust the embedding heights of specimens of different sizes to meet different embedding heights specified by the standard.

[0021] (ii) The multi-angle packaging and sample preparation device for hip joint specimens of the present invention can realize vertical angle adjustment by freely rotating the connecting shaft in the vertical plane with the hinge point as the center of the circle, and the degree can be determined by the main viewing semicircular meter, and can realize multi-angle adjustment by freely rotating the hip chuck with the plug bolt as the center of the circle, and the degree can be determined by the semicircular angle ruler, thereby realizing multi-angle packaging of hip bone specimens, meeting the requirements of multi-angle adjustment of the anteversion angle and deflection angle of the hip bone specimens, and adapting to various possible situations of the hip bone in the human body.

[0022] (III) The multi-angle encapsulation sample preparation device for hip joint specimens of the present invention can adjust the embedding plane angle of the hip bone specimen by setting different angles of the adjustment platform in the angle adjustment mechanism. Different embedding plane forward inclination angles and deflection angles can be obtained by properly operating the angle adjustment device to simulate the working environment of the artificial hip joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a multi-angle packaging sample preparation device provided by an embodiment of the present invention for neck packaging;

[0024] Figure 2A schematic diagram of the structure of a multi-angle packaging sample preparation device for handle packaging provided by an embodiment of the present invention;

[0025] Figure 3 An exploded diagram of the structure of the packaging mechanism in the multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0026] Figure 4 A schematic front view of a packaging mechanism in a multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0027] Figure 5 A schematic side view of a packaging mechanism in a multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0028] Figure 6 A schematic top view of a packaging mechanism in a multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0029] Figure 7 An exploded diagram of the structure of the angle adjustment mechanism in the multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0030] Figure 8 A schematic front view of an angle adjustment mechanism in a multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0031] Fig. 9 A schematic side view of an angle adjustment mechanism in a multi-angle packaging sample preparation device provided by an embodiment of the present invention;

[0032] Fig.10 A schematic top view of an angle adjustment mechanism in a multi-angle packaging sample preparation device provided in an embodiment of the present invention.

[0033] In the above figure: 1: packaging device; 1-1: bottom plate; 1-2: fixing plate; 1-3: column; 1-4: fixing block; 1-5: main semicircular instrument; 1-6: connecting shaft; 1-7: hip chuck; 1-8: semicircular angle ruler; 1-9: angle pointer; 1-10: cross recessed countersunk bolt; 1-11: first knurled high head screw; 1-12: height adjustment bolt; 1-13: fixing screw; 1-14: top cover; 1-15: ordinary Flat key; 1-16: cylindrical pin; 1-17: hand-tightened bolt; 1-18: plug bolt; 2: angle adjustment device; 2-1: angle adjustment mechanism base; 2-2: knurled threaded cylindrical pin; 2-3: second knurled high-head screw; 2-4: threaded cylindrical pin; 2-5: miniature bearing; 2-6: driving gear; 2-7: adjustment platform; 2-8: spacer; 2-9: package adjustment mounting plate; 3: neck embedding fixture; 4: handle embedding fixture. DETAILED DESCRIPTION

[0034] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0035] The present invention proposes a new idea for the multi-angle adjustability, tightness and reliability of the hip bone sample packaging and sample preparation device. Corresponding sample packaging and sample preparation are performed according to the different angles that may appear in the hip bone in the human body, which can meet the packaging requirements of hip prosthesis handle fatigue samples and neck fatigue samples.

[0036] like Figure 1 and Figure 2 As shown, a hip bone specimen preparation and packaging device provided in this embodiment mainly includes a packaging device 1, an angle adjustment device 2, a neck embedding tool 3, and a handle embedding tool 4. In the packaging of the neck of the hip bone specimen, the anteversion angle and deflection angle of the hip bone specimen and the anteversion angle and deflection angle of the embedding plane are specified, and the packaging device 1, the angle adjustment device 2 and the neck embedding tool 3 need to be used in conjunction; in the packaging of the handle of the hip bone specimen, the anteversion angle and deflection angle of the hip bone specimen are specified, and only the packaging device 1 and the handle embedding tool 4 are needed.

[0037] like Figure 3 As shown, the packaging device 1 includes a base plate 1-1, a fixing plate 1-2, a column 1-3, a fixing block 1-4, a main viewing semicircular instrument 1-5, a connecting shaft 1-6, a hip chuck 1-7, a semicircular angle ruler 1-8, an angle pointer 1-9, a cross-slot countersunk bolt 1-10, a first knurled high-head screw 1-11, a height adjustment bolt 1-12, a fixing screw 1-13, a top cover 1-14, a common flat key 1-15, a cylindrical pin 1-16, a hand-tightened bolt 1-17, and a plug bolt 1-18.

[0038] The bottom plate 1-1 is a rectangular stainless steel plate, and the middle position of its upper surface is convex to form a slide rail, which extends along the length direction of the bottom plate 1-1 and is used to cooperate with the handle embedding tool 4 and the slide groove at the bottom of the angle adjustment device 2. The handle embedding tool 4 is an existing component in the prior art, and its main structure is a stainless steel cylinder, which is fixedly connected to a stainless steel base, and a slide groove is processed on the lower surface of the stainless steel base. The handle embedding tool 4 is placed on the bottom plate 1-1 and can move linearly along its slide rail.

[0039] The fixing plate 1-2 is a stainless steel disc, which is connected to one end of the upper surface of the base plate 1-1 by bolts. The bottom of the column 1-3 is inserted into the fixing plate 1-2 and connected to the fixing plate 1-2 by a flat key 1-15.

[0040] The fixed block 1-4 is a rectangular stainless steel block, which is mounted on the outside of the column 1-3 and can slide up and down relative to the column 1-3. A through-length groove is provided on one side of the column 1-3, and a height adjustment bolt 1-12 is installed on the fixed block 1-4. The height adjustment bolt 1-12 passes through the fixed block 1-4 and its tail is stuck in the through-length groove of the column 1-3. Loosen the height adjustment bolt 1-12, and the fixed block 1-4 can slide along the column 1-3. Lock the height adjustment bolt 1-12 so that its tail is tightly pressed in the through-length groove of the column 1-3, so that the fixed block 1-4 can be fixed on the column 1-3 to meet the embedding height required for the test.

[0041] The top cover 1-14 is fixed to the top of the column 1-3 by a cylindrical pin 1-16 installed at its center. The top cover 1-14 is used to prevent the fixing block 1-4 from slipping off the top of the column 1-3.

[0042] One end of the connecting shaft 1-6 is hingedly connected to the upper part of the fixed block 1-4, so that the connecting shaft 1-6 can rotate freely in a vertical plane with the hinge point as the center. An angle pointer 1-9 is installed on the other end face of the connecting shaft 1-6, and the two sides of the lower part of the angle pointer 1-9 are respectively fixed to the end face of the connecting shaft 1-6 by cross slot countersunk bolts 1-10.

[0043] The main viewing semicircular instrument 1-5 is a semicircular ring sheet, which is provided with a semicircular ring groove and angle scales are marked along the semicircular ring groove. One end of the main viewing semicircular instrument 1-5 is fixed to the lower part of the fixed block 1-4, so that the main viewing semicircular instrument 1-5 can move along the column 1-3 together with the fixed block 1-4. The first knurled high head screw 1-11 passes through the semicircular ring groove and is connected to the middle part of the connecting shaft 1-6. By loosening the first knurled high head screw 1-11, the connecting shaft 1-6 can be rotated in the vertical plane. By locking the first knurled high head screw 1-11, the connecting shaft 1-6 is fixed to the main viewing semicircular instrument 1-5, and the scale of the connecting shaft 1-6 on the main viewing semicircular instrument 1-5 is read with the help of the first knurled high head screw 1-11 to determine the angle between the connecting shaft 1-6 and the horizontal plane required for the test, which is the anteversion angle of the hip bone specimen.

[0044] The hip chuck 1-7 includes an integrally formed base and two oppositely arranged side panels, and the two side panels are respectively installed with hand-tightening bolts 1-17, so that the head of the hip bone specimen can be placed between the two hand-tightening bolts 1-17, and the hand-tightening bolts 1-17 are locked to fix the hip bone specimen. The hip chuck 1-7 is installed with a plug bolt 1-18, and the plug bolt 1-18 is only provided with threads at the tail, and the rest is a plain axis; the plug bolt 1-18 passes through the base center of the hip chuck 1-7, the semicircular angle ruler 1-8, and the bottom center of the angle pointer 1-9 in sequence, and is locked and fixed with the other end of the connecting shaft 1-6. The base of the hip chuck 1-7 is also installed with a fixing screw 1-13, and the fixing screw 1-13 is arranged perpendicular to the plug bolt 1-18. The bottom of the fixing screw 1-13 presses the side of the plug bolt 1-18 to achieve the fixation of the hip chuck 1-7. In this way, the semicircular angle ruler 1-8 is located between the base of the hip chuck 1-7 and the angle pointer 1-19. After loosening the fixing screw 1-13, the semicircular angle ruler 1-8 can rotate freely around the connecting shaft 1-6 following the hip chuck 1-7 by plugging the bolt 1-18, and the scale on the semicircular angle ruler 1-8 can be read by the angle pointer 1-9 fixed at the end of the connecting shaft 1-6 to determine the angle between the hip chuck 1-7 and the horizontal plane required for the test, that is, the deflection angle of the hip specimen.

[0045] The angle adjustment device 2 includes an angle adjustment mechanism base 2-1, a knurled threaded cylindrical pin 2-2, a second knurled high head screw 2-3, a threaded cylindrical pin 2-4, a miniature bearing 2-5, a driving gear 2-6, an adjustment platform 2-7, a cushion block 2-8, and a packaging adjustment mounting plate 2-9.

[0046] The angle adjustment mechanism base 2-1 is made of stainless steel plate, and is integrally composed of a rectangular base and two oppositely arranged side panels. A slide groove is provided on the lower surface of the base of the angle adjustment mechanism base 2-1, and the slide groove is used to cooperate with the slide rail on the upper surface of the bottom plate 1-1, so that when the angle adjustment mechanism base 2-1 is placed on the bottom plate 1-1, the angle adjustment device 2 can move linearly along the slide rail. One of the side panels of the angle adjustment mechanism base 2-1 is provided with a hollow arc track, and the arc track is used to pass the second knurled high head screw 2-3.

[0047] The adjustment platform 2-7 is a semi-cylindrical structure, which is installed inside the angle adjustment mechanism base 2-1 with the flat surface facing upward and the curved surface facing downward, and is located in the space surrounded by the bottom plate and two side plates of the angle adjustment mechanism base 2-1. The two sides of the adjustment platform 2-7 are connected to the two side plates of the angle adjustment mechanism base 2-1 through threaded cylindrical pins 2-4 respectively. The optical axis part of the threaded cylindrical pin 2-4 passes through the perforation of the side plate of the angle adjustment mechanism base 2-1, and the threaded part is tightened with the threaded hole on the side of the adjustment platform 2-7, so that the adjustment platform 2-7 can rotate inside the angle adjustment mechanism base 2-1 with the threaded cylindrical pin 2-4 as the axis. The side of the adjustment platform 2-7 is provided with an angle scale of 0°-60°, which represents the angle between the upper surface of the adjustment platform 2-7 and the horizontal plane, and also represents the angle between the embedded plane and the horizontal plane, which is referred to as the forward tilt angle of the embedded plane. The angle scale corresponds to the position of the circular arc track of the angle adjustment mechanism base 2-1, so the angle scale can be seen through the circular arc track. The second knurled high head screw 2-3 passes through the circular arc track and is fixedly connected to the adjustment platform 2-7. By moving the second knurled high head screw 2-3 along the circular arc track, the rotation angle of the adjustment platform 2-7 can be adjusted, and the current angle scale can be read through the second knurled high head screw 2-3. The lower curved surface of the adjustment platform 2-7 is provided with gear teeth, and the coverage range of the gear teeth on the lower curved surface of the adjustment platform 2-7 is also 0°-60°

[0048] The driving gear 2-6 is located inside the angle adjustment mechanism base 2-1 and is arranged between the base of the angle adjustment mechanism base 2-1 and the gear of the adjustment platform 2-7. The driving gear 2-6 and the gear teeth at the bottom of the adjustment platform 2-7 are interference fit, so that the rotation angle of the adjustment platform 2-7 is subject to a certain resistance and avoids rapid rotation, thereby achieving precise regulation. The two ends of the driving gear 2-6 are respectively installed on the two sides of the angle adjustment mechanism base 2-1 through micro bearings 2-5. The knurled threaded cylindrical pin 2-2 passes through the micro bearing 2-5 and connects the driving gear 2-6, which is used to connect the driving gear 2-6 to the angle adjustment mechanism base 2-1.

[0049] The pad 2-8 is a stainless steel plate, which is located on the upper plane of the adjustment platform 2-7 and is fixedly connected to the adjustment platform 2-7 by screws. Its lower surface is a plane, and its upper surface is inclined from one side of the adjustment platform 2-7 to the other side, so that it forms a certain angle with the horizontal plane. By selecting pads 2-8 with different inclined angles, embedding planes with different deflection angles can be obtained.

[0050] The main body of the package adjustment mounting plate 2-9 is a flat plate structure, which is located on the cushion block 2-8 and is fixedly connected to the cushion block 2-8 by screws, so that the package adjustment mounting plate 2-9 is placed at a certain angle to the horizontal plane. The upper surface of the package adjustment mounting plate 2-9 is raised to form a slide rail, which is used to cooperate with the slide groove at the bottom of the neck embedding tooling 3.

[0051] The neck embedding tool 3 is an existing component, the main body is a stainless steel cylinder, the bottom is connected to a square stainless steel base by bolts, and the lower surface of the stainless steel base is processed with a slide groove. The neck embedding tool 3 is placed on the packaging adjustment mounting plate 2-9 and can move linearly along its slide rail; after aligning the packaging adjustment mounting plate 2-9 of the angle adjustment device 2 with the pre-processed screw holes of the base of the neck embedding tool 3, the stainless steel base of the neck embedding tool 3 is fixedly connected to the packaging adjustment mounting plate 2-9 by screws.

[0052] For the angle adjustment device 2, adjusting the second knurled high head screw 2-3 can rotate the adjustment platform 2-7, thereby realizing multi-angle movement and fixation of the package adjustment mounting plate 2-9 to obtain different embedding plane angles. On the other hand, by customizing the different inclinations of the pad 2-8, the different inclination angles of the package adjustment mounting plate 2-9 and the horizontal plane can be adjusted, thereby broadening the application range of the device.

[0053] The hip bone sample preparation and packaging device of the present invention is packaged in the hip bone sample handle, such as Figure 2 As shown, the usage process is as follows:

[0054] (1) Place the packaging device 1 on a horizontal operating table.

[0055] (2) Place the handle embedding tool 4 along the slide rail of the bottom plate 1-1 of the packaging device under the hip chuck 1-7 and fix it with screws.

[0056] (3) Slide the fixing block 1-4 along the column 1-3 to the top, and tighten the height adjustment bolt 1-12.

[0057] (4) Rotate the connecting shaft 1-6 until the knurled high head screw 1-11 is at a position where the scale of the main viewing semicircular instrument 1-5 is at an angle α determined by the experimental plan, and tighten the knurled high head screw 1-11 so that the connecting shaft 1-6 forms an angle α with the horizontal plane, that is, a forward tilt angle.

[0058] (5) Rotate the hip chuck 1-7 so that the angle pointer 1-9 points to the position of the semicircular angle ruler 1-8 that satisfies the β angle, i.e., the deflection angle, determined in the experimental plan, to ensure that the hip chuck 1-7 forms an angle β with the horizontal plane.

[0059] (6) Place the head of the hip bone specimen in the middle of the hip bone chuck 1-7, use a heavy hammer to pass the metal ball center of the hip bone specimen head to ensure that it is perpendicular to the bottom surface, and tighten the hand screw 1-17.

[0060] (7) Loosen the height adjustment bolt 1-12 of the fixing block 1-4, and adjust the fixing block 1-4 to slide downward along the column 1-3 so that the hip bone specimen enters the handle embedding fixture 4 and the lower end of the hip bone specimen is 1 to 2 cm away from the bottom of the handle embedding fixture 4.

[0061] (8) Control the height of the poured embedding medium according to the embedding height D determined in the test plan, and complete the encapsulation of the hip bone specimen handle after the embedding medium cools down.

[0062] The hip bone specimen preparation and packaging device of the present invention is packaged in the hip bone specimen neck, such as Figure 1 As shown, the usage process is as follows:

[0063] The process of adjusting the α and β angles is the same as steps (1)-(5) of encapsulating the hip bone specimen handle. First, adjust the α and β angles according to the experimental plan, and then adjust the embedding plane angle. During the embedding plane angle adjustment;

[0064] (1) Place the angle adjustment device 2 below the hip chuck 1-7 along the slide rail of the packaging device bottom plate 1-1.

[0065] (2) Adjust the second knurled high head screw 2-3 to rotate the adjustment platform 2-7 until the 0°-60° rotation angle scale set on the side of the adjustment platform 2-7 meets the embedding plane angle requirement determined by the experimental plan, and then tighten the second knurled high head screw 2-3.

[0066] (3) Select the angle of the pad 2-8 according to the experimental plan requirements so that the angle between the pad 2-8 and the horizontal plane meets the experimental requirements.

[0067] (4) The neck embedding tool 3 is placed along the upper surface slide rail of the packaging adjustment mounting plate 2-9 of the angle adjustment device 2, and connected to the packaging adjustment mounting plate 2-9 by screws.

[0068] (5) The process of adjusting the embedding height D is the same as the steps (6)-(8) of the hip bone specimen handle packaging.

[0069] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms of specific changes without departing from the scope of protection of the invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A multi-angle packaging sample preparation device for hip joint specimens, comprising a neck embedding tool and a handle embedding tool, characterized in that: Also includes a packaging device and an angle adjustment device; The packaging device includes a base plate, the surface of which is used to install the handle embedding tooling or the angle adjustment device, and one end of the base plate surface is fixedly installed with a column; the column is provided with a fixed block, and the fixed block can slide and be fixed along the column; the fixed block is installed with a connecting shaft and a main viewing semicircular instrument; one end of the connecting shaft is hinged to the upper part of the fixed block so that it can rotate in a vertical plane with the hinge point as the center of the circle, and an angle pointer is fixed on the end face of the other end; the main viewing semicircular instrument is a semicircular ring sheet body, which is provided with a semicircular ring groove and angle scales are marked along the semicircular ring groove; one end of the main viewing semicircular instrument is fixed to the lower part of the fixed block and can move along the column together with the fixed block; a first knurled high head screw is passed through the semicircular ring groove, and the first knurled high head screw connects the main viewing semicircular instrument to the middle of the connecting shaft; by loosening the first knurled high head screw The nail can realize the rotation of the connecting shaft in the vertical plane, and the connecting shaft and the main view semicircular instrument can be fixed by locking the first knurled high head screw, and the scale of the connecting shaft at the angle of the main view semicircular instrument is read according to the first knurled high head screw to determine the anteversion angle of the hip bone specimen; the end of the connecting shaft fixed with the angle pointer is also connected to a semicircular angle ruler and a hip chuck, and the plug bolt passes through the hip chuck, the semicircular angle ruler, and the angle pointer in sequence and is locked and fixed with the end of the connecting shaft, and the hip chuck is equipped with a fixing screw for tightening the plug bolt; the hip chuck fixes the hip bone specimen by hand-tightening bolts on both sides; the plug bolt can realize the rotation of the semicircular angle ruler and the hip chuck around the axis of the connecting shaft, and the scale of the semicircular angle ruler is read according to the angle pointer to determine the deflection angle of the hip bone specimen; The angle adjustment device comprises an angle adjustment mechanism base, the angle adjustment mechanism base comprises a base and side plates arranged on both sides of the base; one of the side plates of the angle adjustment mechanism base is provided with a hollow arc track, the arc track is used to pass a second knurled high-head screw; an adjustment platform is arranged inside the angle adjustment mechanism base, the adjustment platform is a semi-cylindrical structure, and is installed in the space surrounded by the bottom plate and two side plates of the angle adjustment mechanism base with the flat surface facing upward and the curved surface facing downward; the two sides of the adjustment platform are connected to the two side plates of the angle adjustment mechanism base by threaded cylindrical pins respectively, so that the adjustment platform can rotate inside the angle adjustment mechanism base with the threaded cylindrical pin as the axis; the adjustment An angle scale is provided on the side of the section platform, and the angle scale is exposed through the circular arc track; the second knurled high head screw passes through the circular arc track and is fixedly connected to the adjustment platform, and the rotation angle of the adjustment platform can be adjusted by moving the second knurled high head screw along the circular arc track, and the current angle scale can be read to determine the forward tilt angle of the embedding plane; a pad is fixedly connected to the plane on the top of the adjustment platform, the lower surface of the pad is a plane, and the upper surface is inclined from one side of the adjustment platform to the other side; by selecting different pads, embedding planes with different deflection angles can be obtained; the upper surface of the pad is fixedly connected to a packaging adjustment mounting plate; the upper surface of the packaging adjustment mounting plate is connected to the neck embedding tooling; In the packaging of the neck of the hip bone specimen, the packaging device, the angle adjustment device and the neck embedding tool are used in conjunction with each other; The neck embedding tool is installed on the upper part of the angle adjustment device, and the angle adjustment device is installed on the bottom plate surface of the packaging device; In the packaging of the hip bone specimen handle, the packaging device is used in conjunction with the handle embedding tool; the handle embedding tool is installed on the bottom plate surface of the packaging device.

2. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: The bottom plate surface is provided with a slide rail for cooperating with the slide grooves provided at the bottom of the handle embedding tooling and the bottom of the angle adjustment mechanism base, so that the handle embedding tooling and the angle adjustment device can be fixed after adjusting their positions on the bottom plate surface.

3. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: The bottom of the column is fixedly connected to the base plate via a fixing plate.

4. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: A through-length groove is provided on one side of the column, and a height adjustment bolt passes through the fixing block and is clamped in the through-length groove, so that the fixing block can slide and be fixed along the column.

5. The multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: A top cover is fixed on the top of the column, and the top cover is used to prevent the fixing block from slipping off.

6. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: The hip bone chuck comprises an integrally formed base and two oppositely arranged side plates, and the two side plates are respectively installed with the hand-tightening bolts so that the head of the hip bone specimen is placed between the two hand-tightening bolts and locked and fixed.

7. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: The curved surface at the bottom of the adjustment platform is provided with gear teeth, and the gear teeth are interference fit with the driving gear. The driving gear is located between the gear teeth of the adjustment platform and the base of the angle adjustment mechanism base; the two ends of the driving gear are respectively connected to the two side surfaces of the angle adjustment mechanism base through miniature bearings; the miniature bearing is equipped with a knurled threaded cylindrical pin for connecting the driving gear and the angle adjustment mechanism base.

8. A multi-angle packaging sample preparation device for hip joint specimens according to claim 1, characterized in that: The surface of the packaging adjustment mounting plate is provided with a slide rail for cooperating with a slide groove provided at the bottom of the neck embedding tooling. The neck embedding tooling can be fixed after the position is adjusted on the surface of the packaging adjustment mounting plate.

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