CN211409545U - Thighbone condyle measurer - Google Patents
Thighbone condyle measurer Download PDFInfo
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- CN211409545U CN211409545U CN201920773793.9U CN201920773793U CN211409545U CN 211409545 U CN211409545 U CN 211409545U CN 201920773793 U CN201920773793 U CN 201920773793U CN 211409545 U CN211409545 U CN 211409545U
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Abstract
The utility model provides a femoral condyle measuring device, which comprises a base, a pointer, a scale block, an adjusting block and a connecting mechanism; the surface of the scale block is longitudinally provided with scale marks for representing the model of the femoral condyle, and the scale block is fixed on the base; the adjusting block comprises a fixed seat, a first fixed plate and a second fixed plate which are fixed on one side of the fixed seat, and a locking piece which can sequentially pass through the first fixed plate, the scale block and the second fixed plate to fix the adjusting block on the scale block, the adjusting block can slide up and down along the scale block, and an indicating line for indicating the model of the femoral condyle is arranged on the surface of the adjusting block; one end of the connecting mechanism is fixed on the fixed seat, and the other end of the connecting mechanism is connected with the pointer. The thighbone condyle measuring device is simple in adjusting structure, high in adjusting speed and convenient to adjust, can directly select the type of the thighbone condyle, can accurately determine the type of the thighbone condyle, and can give the height value of the thighbone anterior condyle.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a thighbone condyle caliber is related to, especially, relate to a thighbone condyle AP caliber.
Background
The knee joint is one of the largest and most complex joints of the human body and is the most important joint in the process of human motion. The development of knee joint prosthesis systems has been in history for decades, and when a natural knee joint of a human body has lost partial or all functions due to pathological changes or injuries and the like, the knee joint prosthesis system needs to be adopted for replacement so as to rebuild the normal functions of the knee joint, reduce the pain and inconvenience of patients, achieve the optimal treatment effect by implementing the knee joint prosthesis system replacement, and can recover the mobility of the patients to the maximum extent.
Replacement of femoral condylar prostheses is part of a replacement procedure for a knee prosthesis system, and since each patient's femur is of a different size, there are generally a range of femoral condylar prostheses of a dimensional specification that require measurement of the femoral condyles during the procedure to determine the femoral condylar prosthesis specification.
In the prior art, the femoral condyle measuring device utilizes a screwdriver or a knob to adjust the vertical sliding of a pointer, and has the following defects: the adjusting process is complex or the adjusting structure is complex, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a thighbone condyle caliber, it is adjusted simple structure, and it is convenient to adjust, and the governing speed is fast, can directly elect thighbone condyle model, practices thrift operating time.
To achieve the purpose, the utility model adopts the following technical proposal:
a femoral condyle measurer comprises a base, a pointer, a scale block, an adjusting block and a connecting mechanism;
the surface of the scale block is provided with scale marks for representing the model of the femoral condyle along the axial direction, and the scale block is fixed on the base;
the adjusting block comprises a fixed seat, a first fixed plate and a second fixed plate which are fixed on one side of the fixed seat, and a locking piece which can sequentially pass through the first fixed plate, the scale block and the second fixed plate to fix the adjusting block on the scale block, the adjusting block can slide up and down along the scale block, and an indicating line for indicating the model of the femoral condyle is arranged on the surface of the adjusting block;
one end of the connecting mechanism is fixed on the fixed seat, and the other end of the connecting mechanism is connected with the pointer.
The method for measuring the anterior-posterior diameter of the femoral condyle by using the femoral condyle measuring device comprises the following steps:
before use, two femoral condyle positioning sheets are abutted against the femoral posterior condyle, the bolt is loosened to enable the adjusting block to move up and down, the adjusting block and the pointer are moved and the pointer is rotated to enable the pointer tip to be positioned on the femoral anterior condyle, at the moment, the bolt is screwed down to fix the adjusting block, and the model represented by the scale line aligned with the indicating line of the adjusting block is the model of the femoral condyle; the size of the ammeter of the pointer scale indicated by the indicating line of the pointer frame is the height of the femoral anterior condyle.
Preferably, the thighbone condyle measuring device sets up the regulating block to include fixing base, first stationary blade, second stationary blade and retaining member, only needs to reciprocate the fixing base and can realize the upper and lower slip of regulating block, and then realizes reciprocating of coupling mechanism and pointer, and after the pointer arrived appointed point, fix the regulating block on the scale block through the retaining member can, can directly read out the model of thighbone condyle through the indicating line on the fixing base and the scale mark on the scale block. Therefore, the adjusting mechanism has simple structure, does not need other auxiliary devices, has high adjusting speed and saves the operation time.
Preferably, the base comprises a base and two femoral condyle positioning plates, and the femoral condyle positioning plates are arranged perpendicular to the base. The femoral condyle positioning plate is used for positioning the base during measurement, and is abutted against the femoral posterior condyle during measurement, so that measurement can be performed.
Preferably, the scale block comprises a mounting block and a rectangular block connected with the mounting block, the rectangular block is provided with an inner cavity and comprises a front side face, a rear side face, a left side face, a right side face and a top face, scale marks are arranged on the front side face, sliding grooves are correspondingly arranged on the left side face and the right side face, the sliding grooves are communicated with a hollow structure of the rectangular block, and an insertion hole for inserting the adjusting block is formed in the rear side face; the top surface is provided with a hole through which the connecting mechanism penetrates; the mounting block is fixed on the base.
Preferably, the scale block is vertically fixed on the base. When the regulating block slides up and down, the first fixing piece slides up and down along the chute on the left side surface, and the second fixing piece slides up and down along the chute on the right side surface. The setting of the inserting hole can assemble the femoral condyle measuring device more conveniently.
Preferably, the mounting block is provided with a mounting hole, the base is provided with a protrusion, and the scale block and the base are in interference fit with the protrusion through the mounting hole.
Preferably, the front side surface is further provided with a damping hole, an elastic marble is arranged in the damping hole, and the elastic marble is in contact with the connecting mechanism. The setting of elasticity marble can prevent to loosen coupling mechanism and the quick gliding of pointer behind the retaining member, plays the effect of stabilizing coupling mechanism and pointer.
Preferably, fixing base, first stationary blade and second stationary blade integrated into one piece, the fixing base both ends still are provided with the location pinhole. The positioning needle hole is convenient for the follow-up operation of the knee joint replacement operation.
Preferably, the locking member includes a bolt, and the first fixing plate and the second fixing plate are both provided with a fixing hole engaged with the bolt. Preferably, the fixing hole of the first fixing plate is a unthreaded hole, the fixing hole of the second fixing plate is a threaded hole, and the thread of the bolt is matched with the threaded hole.
Preferably, the connection mechanism comprises a connecting rod, preferably the connecting rod is a hollow rod, to reduce the weight of the femoral condylar gauge.
Preferably, the pointer is rotatably connected with the connecting mechanism through a pointer frame, the pointer is fixed on the pointer frame, and the upper surface of the pointer frame is provided with scale indicating lines. The pointer can rotate, so that the pointer can conveniently indicate a designated position.
Preferably, the pointer is L-shaped so as to indicate a specific point of the femoral condyle, and the upper surface of the pointer is provided with scale marks for indicating the height of the femoral anterior condyle.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a thighbone condyle caliber adjusts simple structure, does not need other auxiliary device, and the governing speed is fast, and it is convenient to adjust, can directly elect thighbone condyle model, practices thrift operating time.
The utility model provides a fixed effect of regulating block of thighbone condyle caliber is better, is favorable to the accurate thighbone condyle model of confirming.
The utility model provides an in the thighbone condyle caliber accommodation process coupling mechanism and pointer remove more steadily, the accurate thighbone condyle model of being convenient for is confirmed.
The utility model provides a thighbone condyle caliber can also give thighbone anterior condyle height value.
Drawings
Fig. 1 is a schematic perspective view of a femoral condyle measuring instrument provided in embodiment 1.
Fig. 2 is a front view of the femoral condyle measuring instrument provided in example 1.
Fig. 3 is a schematic perspective view of an adjusting block provided in embodiment 1.
Fig. 4 is a front view of fig. 3 provided in embodiment 1.
Wherein: 1, a base; 2, adjusting a block; 3, a scale block; 4, connecting rods; 5, a pointer; 6, a pointer frame; 7, femoral condyle positioning sheets; 8, positioning a pinhole; 9, a locking piece; 10, a first threaded hole; 11, a second threaded hole; 12, scale marks; 13, scale marks; 14, an indicator line; 15, a damping hole; 16, mounting holes; 17, a bump; 18, a first fixing sheet; 19, a second fixing sheet; 20, a first light hole; 21, a second light hole; 22, a chute; 23, elastic marbles; 24, mounting a block; and 25, fixing the base.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
Referring to fig. 1-4, a femoral condyle measuring device comprises a base, a pointer 5, a scale block 3, an adjusting block 2 and a connecting mechanism;
the base comprises a base 1 and two femoral condyle positioning sheets 7, wherein the femoral condyle positioning sheets 7 are arranged vertical to the base 1;
the scale block 3 comprises a mounting block 24 and a rectangular block, the rectangular block is provided with an inner cavity, the rectangular block comprises a front side face, a rear side face, a left side face, a right side face and a top face, the front side face is provided with scale marks 13 representing the types of the femoral condyles along the axial direction, the rectangular block is also provided with a damping hole 15, an elastic marble 23 is arranged in the damping hole 15, the elastic marble 23 is contacted with a connecting mechanism, the left side face and the right side face are correspondingly provided with sliding grooves 22, the sliding grooves 22 are communicated with the hollow structure of the rectangular block, and the rear side face is provided with an insertion hole for inserting the adjusting; the top surface is provided with a hole through which the connecting mechanism penetrates; the front side face of the rectangular block is connected with a mounting block 24, the mounting block 24 is provided with a mounting hole 16, the base 1 is provided with a bulge 17, the scale block 3 and the base are in interference fit with the bulge 17 through the mounting hole 16, and the rectangular block is vertically fixed with the base 1;
the adjusting block 2 comprises a fixed seat 25, a first fixed plate 18 and a second fixed plate 19 which are fixed on the fixed seat 25, and a locking part 9 which can sequentially pass through the first fixed plate 18, the scale block 3 and the second fixed plate 19 to fix the adjusting block 2 on the scale block 3, the adjusting block 2 can axially slide up and down along the scale block 3, and an indicating line 14 for indicating the model of the femoral condyle is arranged on the surface of the adjusting block 2; the fixed seat 25, the first fixed sheet 18 and the second fixed sheet 19 are integrally formed, and two ends of the fixed seat 25 are also provided with positioning pin holes 8; the locking piece 9 comprises a bolt, the first fixing piece 18 and the second fixing piece 19 are both provided with fixing holes matched with the bolt, the fixing hole formed in the first fixing piece 18 is a second unthreaded hole 21, the fixing hole formed in the second fixing piece 19 is a first threaded hole 10, and the thread of the bolt is matched with the first threaded hole 10;
the connecting mechanism comprises a connecting rod 4, one end of the connecting rod 4 is fixed on a fixed seat 25 through a bolt (the fixed seat 25 is provided with a first unthreaded hole 20 and a second threaded hole 11 with vertical axes, one end of the connecting rod 4 is inserted into the first unthreaded hole 20 and is fixed by the bolt in the second threaded hole 11), the other end of the connecting rod 4 is connected with a pointer 5 through a pointer frame 6, and the pointer frame 6 is rotatably fixed at the end part of the connecting rod 4 (the pointer frame 6 is connected with the connecting rod 4 through a thread in the embodiment);
the pointer 5 is connected with the connecting rod 4 through a pointer frame 6, the pointer 5 is fixed on the pointer frame 6, the pointer 5 is L-shaped and is convenient to indicate the femoral condyle, and scale marks 12 are arranged on the upper surface of the pointer 5 and used for indicating the height of the femoral anterior condyle; the pointer 5 comprises an upper layer and a lower layer, the width of the lower layer is larger than that of the upper layer, and the lower layer is in a T shape;
the pointer frame 6 is cylindrical, the top surface of the pointer frame fixes the pointer 5 through a T-shaped groove, the top surface of the pointer frame is provided with an indicating line, and the bottom of the pointer frame is rotatably connected with the connecting rod 4.
The method for measuring the anterior-posterior diameter of the femoral condyle by using the femoral condyle measuring device comprises the following steps:
before use, two femoral condyle positioning sheets 7 are abutted against the femoral posterior condyle, the bolt is loosened to enable the adjusting block 2 to move up and down, the adjusting block 2 and the pointer 5 are moved, the pointer 5 is rotated, the tip of the pointer 5 is located above the femoral anterior condyle, at the moment, the bolt is screwed, the adjusting block 2 is fixed, and the model represented by the scale line aligned with the indication line 14 of the adjusting block 2 is the model of the femoral condyle; the size of the ammeter marked by the pointer 5 scale indicated by the indicating line of the pointer frame 6 is the height of the femoral anterior condyle.
The thighbone condyle measuring device is characterized in that the adjusting block 2 is arranged to comprise a fixing seat 25, a first fixing plate 18, a second fixing plate 19 and a locking part 9, up-and-down sliding of the adjusting block 2 can be achieved only by moving the fixing seat 25 up and down, up-and-down movement of the connecting mechanism and the pointer 5 is achieved, the pointer 5 reaches a designated point, the adjusting block 2 is fixed on the scale block 3 through the locking part 9, and the type of the thighbone condyle can be directly read out through an indication line 14 on the fixing seat 25 and a scale line on the scale block 3. Therefore, the adjusting mechanism has simple structure, does not need other auxiliary devices, has high adjusting speed and saves the operation time.
The femoral condyle positioning plate 7 is used for positioning the base during measurement, and is abutted against the femoral posterior condyle during measurement, so that measurement can be performed.
When the adjusting block 2 slides up and down, the first fixing piece 18 slides up and down along the sliding groove 22 on the left side surface, and simultaneously the second fixing piece 19 slides up and down along the sliding groove 22 on the right side surface. The setting of the inserting hole can assemble the femoral condyle measuring device more conveniently.
The setting of elasticity marble 23 can prevent to loosen coupling mechanism and pointer 5 gliding fast behind retaining member 9, plays the effect of stabilizing coupling mechanism and pointer 5.
The positioning needle hole 8 is convenient for subsequent operation of knee joint replacement surgery.
The pointer 5 can rotate to facilitate the pointer 5 to indicate a designated position.
The pointer 5 is L-shaped, so that the specific point of the femoral condyle can be conveniently indicated, and the upper surface of the pointer 5 is provided with scale marks 12 for indicating the height of the femoral anterior condyle.
The utility model has simple adjusting structure, no need of other auxiliary devices, fast adjusting speed and convenient adjustment, and can directly select the model of the femoral condyle, thereby saving the operation time; the adjusting block 2 has good fixing effect and is beneficial to accurately determining the model of the femoral condyle; the connecting mechanism and the pointer 5 move more stably in the adjusting process, so that the model of the femoral condyle can be determined accurately; it is also possible to give a femoral anterior condyle height value.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. A femoral condyle measurer is characterized by comprising a base, a pointer (5), a scale block (3), an adjusting block (2) and a connecting mechanism;
scale marks (13) for representing the type of the femoral condyle are longitudinally arranged on the surface of the scale block (3), and the scale block (3) is fixed on the base;
the adjusting block (2) comprises a fixing seat (25), a first fixing piece (18) and a second fixing piece (19) which are fixed on one side of the fixing seat (25), and a locking piece (9) which can sequentially penetrate through the first fixing piece (18), the scale block (3) and the second fixing piece (19) to fix the adjusting block (2) on the scale block (3), the adjusting block (2) can slide up and down along the scale block (3), and an indicating line (14) used for indicating the model of the femoral condyle is arranged on the surface of the adjusting block (2);
one end of the connecting mechanism is fixed on the fixed seat (25), and the other end is connected with the pointer (5).
2. The femoral condyle measurer according to claim 1, wherein the base comprises a base (1) and two femoral condyle positioning plates (7), and the femoral condyle positioning plates (7) are arranged perpendicular to the base (1).
3. The femoral condyle measurer according to claim 1 or 2, wherein the scale block (3) comprises a mounting block (24) and a rectangular block connected with the mounting block (24), the rectangular block has an inner cavity, the rectangular block comprises a front side, a rear side, a left side, a right side and a top surface, the front side is provided with scale lines, the left side and the right side are correspondingly provided with sliding grooves (22), the sliding grooves (22) are communicated with the hollow structure of the rectangular block, the rear side is provided with an insertion hole for inserting the adjusting block (2), and the top surface is provided with a hole through which the connecting mechanism penetrates; the mounting block (24) is fixed on the base.
4. The femoral condyle measurer according to claim 3, wherein the mounting block (24) is provided with a mounting hole (16), the base is provided with a protrusion (17), and the scale block (3) and the base are in interference fit with the protrusion (17) through the mounting hole (16).
5. The femoral condyle measurer according to claim 3, wherein the front side is further provided with a damping hole (15), an elastic marble (23) is arranged in the damping hole (15), and the elastic marble (23) is in contact with the connecting mechanism.
6. The femoral condyle measuring instrument according to claim 1 or 2, wherein the fixing seat (25), the first fixing plate (18) and the second fixing plate (19) are integrally formed, and positioning pin holes (8) are further formed at two ends of the fixing seat (25).
7. The femoral condylometer according to claim 1 or 2, characterized in that said locking member (9) comprises a bolt, the first and second fixing plates (18, 19) each being provided with a fixing hole cooperating with the bolt.
8. The femoral condylometer according to claim 1 or 2, characterized in that said connection mechanism comprises a connecting rod (4).
9. The femoral condyle measurer according to claim 1 or 2, wherein the pointer (5) is rotatably connected with the connecting mechanism through a pointer frame (6), and a scale indication line (14) is arranged on the upper surface of the pointer frame (6).
10. The femoral condyle measurer according to claim 1 or 2, wherein the pointer (5) is L-shaped, and the upper surface of the pointer (5) is provided with scale marks (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773793.9U CN211409545U (en) | 2019-05-27 | 2019-05-27 | Thighbone condyle measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773793.9U CN211409545U (en) | 2019-05-27 | 2019-05-27 | Thighbone condyle measurer |
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| Publication Number | Publication Date |
|---|---|
| CN211409545U true CN211409545U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920773793.9U Active CN211409545U (en) | 2019-05-27 | 2019-05-27 | Thighbone condyle measurer |
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| CN (1) | CN211409545U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367861A (en) * | 2021-06-21 | 2021-09-10 | 天衍医疗器材有限公司 | Probe lockable femur measurer |
| CN114176709A (en) * | 2021-12-29 | 2022-03-15 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
-
2019
- 2019-05-27 CN CN201920773793.9U patent/CN211409545U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367861A (en) * | 2021-06-21 | 2021-09-10 | 天衍医疗器材有限公司 | Probe lockable femur measurer |
| CN113367861B (en) * | 2021-06-21 | 2023-01-03 | 天衍医疗器材有限公司 | Probe lockable thighbone measurer |
| CN114176709A (en) * | 2021-12-29 | 2022-03-15 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
| CN114176709B (en) * | 2021-12-29 | 2022-09-30 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
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