CN212996622U - Osteotomy module of integrated patella forming holder - Google Patents
Osteotomy module of integrated patella forming holder Download PDFInfo
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- CN212996622U CN212996622U CN202020250081.1U CN202020250081U CN212996622U CN 212996622 U CN212996622 U CN 212996622U CN 202020250081 U CN202020250081 U CN 202020250081U CN 212996622 U CN212996622 U CN 212996622U
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- patella
- integrated
- osteotomy
- base
- clamping
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Abstract
The utility model discloses an osteotomy module of an integrated patella forming holder, which comprises two forceps bodies which are mutually pivoted, wherein each forceps body comprises a holding part and a clamping part; the pivoting table is arranged at the pivoting position of the two clamp bodies; the depth adjusting mechanism comprises a base and a depth adjuster, the base is positioned below the pivoting table, the depth adjuster is installed on the pivoting table, one end of the depth adjuster is connected with the base, and the depth adjuster adjusts the interval between the base and the pivoting table; the two osteotomy grooves are respectively arranged on the two clamping parts and are used for connecting the swing saw; the osteotomy module of the integrated patella forming holder adjusts the vertical distance from the base to the two clamping parts according to the measurement result by measuring the length and the thickness of the patella in advance, the two clamping parts clamp the patella, the patella is trimmed and cut by using the swing saw installed in the osteotomy groove, the osteotomy angles at the two ends are adjusted to restore the patella to the patella surface matched with the femoral side prosthesis, and the operation time is shortened.
Description
Technical Field
The utility model relates to the field of medical instrument tools, in particular to integrated patella forming holder's osteotomy module.
Background
Currently, the artificial knee joint replacement is widely applied to clinic, and the operation amount of the artificial knee joint replacement is increased by 10-20% every year. The patella is a main component of the knee stretching device, and numerous researches prove that the patella has important influence on the functional recovery after the artificial knee joint replacement operation. The treatment of patella in artificial knee joint replacement still remains widely controversial. Currently, most of the artificial knee joint replacement operations select the patella trimming operation, however, the current patella trimming operation has the defects of a holder for trimming the patella and a tool for grinding the osteotomy module, so that the patella after being trimmed has different surface forms, is not matched with the artificial knee joint prosthesis, and increases the operation time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least, provide the bone cutting module of integration patella shaping holder, can maintain into ideal state with the patella through adjusting the bone cutting angle.
According to a first aspect of the present invention, there is provided an osteotomy module of an integrated patella formation holder, comprising two forceps bodies pivotally connected to each other, each of the two forceps bodies including a grip portion and a clamping portion; the pivoting table is arranged at the pivoting position of the two clamp bodies; the depth adjusting mechanism comprises a base and a depth adjuster, the base is positioned below the pivoting table, the depth adjuster is installed on the pivoting table, one end of the depth adjuster is connected with the base, and the depth adjuster adjusts the interval between the base and the pivoting table; and the two osteotomy grooves are arranged on the clamping part and are used for connecting the swinging saw.
Has the advantages that: the osteotomy module of the integrated patella forming holder adjusts the vertical distance from the base to the two clamping parts according to the measurement result by measuring the length and the thickness of the patella in advance, clamps the patella by utilizing the two clamping parts, trims and cuts the patella by utilizing the swing saw installed in the osteotomy groove, restores the patella to the patella surface matched with the femoral side prosthesis by adjusting the osteotomy angles at the two ends, and replaces the patella prosthesis.
According to the utility model discloses the integration patella takes shape and cuts bone module of holder of first aspect embodiment, clamping part include stiff end and centre gripping arm, and stiff end one end is connected with the portion of gripping, and the other end of stiff end is articulated with the centre gripping arm, is equipped with angle regulator between stiff end and the centre gripping arm, and angle regulator adjusts the contained angle between stiff end and the centre gripping arm. The clamping part can adapt to different patellas, and fine adjustment ensures reliable clamping.
According to the utility model discloses the osteotomy module of integrated patella shaping holder, angle modulation ware include transmission shaft, scale and lock nut, and lock nut installs in the top of scale, and the scale is installed at the tip of transmission shaft, and the end and the centre gripping arm of transmission shaft are connected, and the scale rotates the drive transmission shaft and rotates, and transmission shaft drive centre gripping arm swings, utilizes angle modulation ware high efficiency, conveniently adjusts and both sides contained angle between the osteotomy.
According to the utility model discloses the osteotomy module of integrated patella shaping holder, angle adjuster still include the calibrated scale, and the centre of rotation of scale and the coincidence of the centre of a circle of calibrated scale have calculated the angle and carry out corresponding regulation according to the calibrated scale for it is more high-efficient to operate.
According to the utility model discloses the osteotomy module of integrated patella shaping holder, depth adjuster are including adjusting the pole, the end of adjusting the pole links to each other with the base, adjust the pole and install on the pivot bench with sliding from top to bottom, adjust the base through gliding regulation pole from top to bottom, and more directly perceived and easy control.
According to the utility model discloses the integration patella takes shape and holds ware cuts bone module, the depth adjuster still includes the button, the button with adjust the end connection of pole, button drive adjusts the pole and reciprocates, utilizes the button to conveniently adjust the regulation of pole, only need calculate can adjust the button.
According to the utility model discloses the osteotomy module of integrated patella shaping holder of first aspect embodiment, be equipped with the scale on the lateral wall of pivot platform, the cooperation button is used together, and it is more convenient to operate.
According to the utility model discloses the osteotomy module of integrated kneecap shaping holder of first aspect embodiment, the base includes the round platform, be equipped with the mounting hole on the round platform, the end of adjusting the pole is installed on the mounting hole.
According to the utility model discloses the osteotomy module of integrated patella shaping holder of first aspect embodiment, the base still includes two round bars, two the round bar interval sets up on the lateral wall of round platform, two the equal level of round bar sets up, utilizes two round bars as the supporting body, fixes anomalous patella on the appointed degree of depth more easily.
According to the utility model discloses the integration patella takes shape and holds ware cuts bone module, two all be equipped with the sawtooth on the clamping face of clamping part, utilize the sawtooth to increase with the frictional force of patella, firm centre gripping.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of an angle adjuster according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 2, the osteotomy module of the integrated patella forming holder comprises two forceps bodies pivoted with each other, each of the two forceps bodies comprises a holding portion 10 and a clamping portion, the two holding portions 10 are relatively close to each other to drive the two clamping portions to be relatively close to each other, and the two holding portions 10 are relatively far away from each other to drive the two clamping portions to be relatively far away from each other; the pivoting table 14 is in a round table 16-shaped structure and is arranged at the pivoting position of the two pliers bodies; the depth adjusting mechanism comprises a base and a depth adjuster, the depth adjuster comprises an adjusting rod 15, the adjusting rod 15 is installed on the pivot platform 14 in a vertically sliding mode, the tail end of the adjusting rod 15 is connected with the base, the base is suspended below the pivot platform 14, the base is driven to move up and down by the vertically sliding of the adjusting rod 15, and the height of the base is adjusted to be matched with the thickness of the patella; two osteotomy grooves 111 are respectively arranged on the two clamping parts, the osteotomy groove 111 is a crescent groove and is used for connecting an oscillating saw which is used for osteotomy operation, and the arrangement of the oscillating saw belongs to the common knowledge and is not described in encumbrance. Meanwhile, the tool for performing the osteotomy operation is not limited to the oscillating saw, but also includes other surgical tools capable of achieving the same effect.
In this embodiment, the clamping portion includes a fixed end 12 and a clamping arm 11, one end of the fixed end 12 is connected to the holding portion 10, the other end of the fixed end 12 is hinged to the clamping arm 11, an angle adjuster 13 is disposed at the hinged position for adjusting an included angle between the fixed end 12 and the clamping arm 11, so that the clamping portion adapts to different patellas and different osteotomy angles, wherein the angle adjuster 13 includes a transmission shaft 133, a scale 131 and a lock nut 132, the lock nut 132 is mounted above the scale 131 for locking the clamping arm 11, so that the clamping arm 11 is maintained at an adjusted angle, the angle adjustment is achieved by rotating the scale 134, the scale 131 has a tip, a position at which the tip points is an angle at which the clamping arm 11 is located, the scale 131 is mounted at an end of the transmission shaft 133, the rotation of the scale 131 drives the transmission shaft 133 to swing, and the other end of the transmission shaft, the swinging of the shaft 133 further translates into a fine adjustment of the gripping arm 11, changing the angle between the gripping arm 11 and the fixed end 12. The arrangement of the angle regulator 13 can enable the clamping part to adapt to different patella and osteotomy angles, and fine adjustment can ensure reliable clamping.
In order to ensure reliable adjustment, the rotation center of the scale 131 coincides with the center of the circle of the dial 134, the angle is calculated in advance, and corresponding adjustment is performed according to the dial 134, so that the operation is more efficient.
In this embodiment, the base includes two round rods 18 and a circular platform 16, the circular platform 16 is vertically arranged, a mounting hole is arranged on the central axis position of the upper top surface of the circular platform 16, the tail end of the adjusting rod 15 is mounted on the mounting hole, a raised bearing platform is further arranged on the side wall of the circular platform 16, two through holes are reserved on the bearing platform, the two round rods 18 are mounted on the side wall of the circular platform 16 through the through holes, the two round rods 18 are horizontally arranged and have parallel axes, the two round rods 18 are used as bearing bodies, the interval between the two round rods 18 is used for placing irregular patella, wherein the adjusting rod 15 is slidably mounted on the pivoting platform 14, the end of the adjusting rod 15 is provided with a button 17, the tail end is connected with the circular platform 16, the side wall of the pivoting platform 14 is provided with a graduated scale 141, the side wall of the adjusting rod 15 is provided with a protrusion extending, the depth of the two cylinders is adjusted by matching the button 17 with the scale on the graduated scale 141 according to the depth of the patella, so that the two cylinders are adjusted to a specific osteotomy thickness.
In this embodiment, the holding portion 10 is a handle, and the handle is provided with an anti-slip layer to ensure more reliable clamping. The saw teeth 112 are arranged on the clamping surfaces of the clamping arms 11, the clamping surfaces are the surfaces of the two clamping arms 11 close to each other, and the saw teeth 112 are used for increasing the friction force with the patella to clamp the patella firmly.
When the osteotomy module of the integrated patella forming holder is used specifically, namely before the patella forming operation, the widest width and thickness of the patella need to be measured firstly, the 12cm bottom of the patella needs to be reserved during measurement, the widest width is used as a bottom edge, and the thickness is used as a height to calculate the angles of the left end and the right end of the osteotomy. Then the bottom surface of the patella is placed between two cylinders, the contact surface of the patellofemoral joint faces upwards, the buttons 17 are adjusted according to the measured thickness, the two cylinders reach the widest width position, the two clamping parts are driven to approach through the two holding parts 10, the patella is clamped, the angles of the two clamping parts are adjusted according to the angles, the two clamping parts correspond to the osteotomy angles on the two sides, after the adjustment is completed, the swinging saw extends into the osteotomy groove 111 to perform osteotomy adjustment, the patella is restored to the Wiberg type II through adjusting the osteotomy angles on the two ends, wherein the Wiberg's I and II type patella are stable patella, and the Wiberg's III type patella belongs to unstable patella. Furthermore, the Wiberg type II is a patella surface matched with the femoral side prosthesis, and can partially or mostly replace the patella prosthesis, so that the adjustment of the osteotomy angles at the two ends to restore the patella to the Wiberg type II can reduce the operation time and save the subsequent maintenance cost.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. Osteotomy module of integrated patella formation holder, comprising:
the clamp comprises two clamp bodies which are pivoted with each other, wherein each clamp body comprises a holding part and a clamping part;
the pivoting table is arranged at the pivoting position of the two clamp bodies;
the depth adjusting mechanism comprises a base and a depth adjuster, the base is positioned below the pivoting table, the depth adjuster is installed on the pivoting table, one end of the depth adjuster is connected with the base, and the depth adjuster adjusts the interval between the base and the pivoting table;
and the two osteotomy grooves are arranged on the clamping part and are used for connecting the swinging saw.
2. The osteotomy module of the integrated patella formation holder of claim 1, wherein: the clamping part comprises a fixed end, a clamping arm and an angle adjuster, one end of the fixed end is connected with the holding part, the other end of the fixed end is hinged to the clamping arm, the angle adjuster is arranged between the fixed end and the clamping arm, and the angle adjuster adjusts an included angle between the fixed end and the clamping arm.
3. The osteotomy module of the integrated patella formation holder of claim 2, wherein: the angle regulator includes transmission shaft, scale and lock nut, lock nut installs the top at the scale, the tip at the transmission shaft is installed to the scale, the end and the centre gripping arm of transmission shaft are connected, the scale rotates the swing of drive transmission shaft, the swing of drive shaft swing drive centre gripping arm.
4. The osteotomy module of the integrated patella formation holder of claim 3, wherein: the angle regulator further comprises a dial, and the rotation center of the scale coincides with the circle center of the dial.
5. The osteotomy module of the integrated patella formation holder of claim 1, wherein: the depth adjuster comprises an adjusting rod, the tail end of the adjusting rod is connected with the base, and the adjusting rod is installed on the pivot platform in a vertically sliding mode.
6. The osteotomy module of the integrated patella formation holder of claim 5, wherein: the depth adjuster further comprises a button, the button is connected with the end of the adjusting rod, and the button drives the adjusting rod to move up and down.
7. The osteotomy module of the integrated patella formation holder of claim 6, wherein: and a graduated scale is arranged on the side wall of the pivot platform.
8. The osteotomy module of the integrated patella formation holder of claim 6, wherein: the base comprises a circular truncated cone, a mounting hole is formed in the circular truncated cone, and the tail end of the adjusting rod is mounted on the mounting hole.
9. The osteotomy module of the integrated patella formation holder of claim 8, wherein: the base still includes two round bars, two the round bar interval sets up on the lateral wall of round platform, two the equal level of round bar sets up.
10. The osteotomy module of the integrated patella formation holder of any of claims 1-9, wherein: the clamping surfaces of the two clamping parts are provided with saw teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020250081.1U CN212996622U (en) | 2020-03-04 | 2020-03-04 | Osteotomy module of integrated patella forming holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020250081.1U CN212996622U (en) | 2020-03-04 | 2020-03-04 | Osteotomy module of integrated patella forming holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212996622U true CN212996622U (en) | 2021-04-20 |
Family
ID=75443638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020250081.1U Expired - Fee Related CN212996622U (en) | 2020-03-04 | 2020-03-04 | Osteotomy module of integrated patella forming holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212996622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813009A (en) * | 2021-09-28 | 2021-12-21 | 庄华烽 | Orthopedic osteotomy fixing and guiding device |
| CN113951969A (en) * | 2021-10-14 | 2022-01-21 | 北京纳通医疗科技控股有限公司 | Bone surface forming abrasive drill, bone surface rasping instrument and patella trimming forming instrument |
-
2020
- 2020-03-04 CN CN202020250081.1U patent/CN212996622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813009A (en) * | 2021-09-28 | 2021-12-21 | 庄华烽 | Orthopedic osteotomy fixing and guiding device |
| CN113951969A (en) * | 2021-10-14 | 2022-01-21 | 北京纳通医疗科技控股有限公司 | Bone surface forming abrasive drill, bone surface rasping instrument and patella trimming forming instrument |
| CN113951969B (en) * | 2021-10-14 | 2023-12-08 | 北京纳通医疗科技控股有限公司 | Bone surface forming grinding drill, bone surface grinding file instrument and patella trimming forming instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210420 |