CN214965568U - Clinical indirect caliber of shin bone rotation angle - Google Patents
Clinical indirect caliber of shin bone rotation angle Download PDFInfo
- Publication number
- CN214965568U CN214965568U CN202022946018.4U CN202022946018U CN214965568U CN 214965568 U CN214965568 U CN 214965568U CN 202022946018 U CN202022946018 U CN 202022946018U CN 214965568 U CN214965568 U CN 214965568U
- Authority
- CN
- China
- Prior art keywords
- longitudinal rod
- lantern ring
- protractor
- rod
- telescopic rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a clinical indirect caliber of shin bone rotation angle, a serial communication port, include: the device comprises a longitudinal rod, a telescopic rod, a longitudinal rod lantern ring, an adjustable snap ring with a spring at the far end, a wing platform, a pointer, a far end protractor, a near end protractor, a telescopic rod lantern ring and an adjustable snap ring with a spring at the near end; the tibia rotation angle measurer is convenient to use and simple to operate, is specially designed for measurement of the tibia torsion angle, and reduces errors of measurement results to the greatest extent; the measurement can be carried out on different single living bodies, and has practical significance on the diseases of patients; compared with CT medical image measurement, the device has the advantages that the cost is low, the device can be repeatedly used, and the cost is greatly saved in the aspect of measuring the tibia torsion angle.
Description
Technical Field
The utility model belongs to orthopedics medical instrument field, concretely relates to clinical indirect caliber of shin bone rotation angle.
Background
CT research on the tibial rotation evolution from a normal embryo to a bone development maturation period finds that the tibia is in an increased external torsion state at the early stage of the embryo life and is gradually reduced along with the growth and development; when a newborn is born, the tibia is in an internal torsion state, then the tibia naturally rotates outwards to develop until the average tibia is twisted outwards by 15 degrees when the skeleton develops to maturity; the abnormal torsion of the tibia is an important factor causing lower limb diseases, and the problems of bone nonunion, influence on the deformity correction effect, lower limb force line deviation and the like caused by the poor rotation of the tibia; when treating diseases such as fracture, equinovarus deformity, traumatic acquired deformity and the like, a special measurer for indirectly measuring the tibial rotation angle is required to measure the tibial rotation angle value, and the measured tibial rotation angle value and the CT measured value have no statistical difference, so that the tibial rotation angle value can be guided and applied to the diseases caused by tibial torsion abnormality;
carrying out 3D model reconstruction on the tibiae of study objects consisting of a plurality of adult males and females, introducing the 3D reconstruction model into 3-matic software, and carrying out a series of analysis and calculation to obtain the tibia with the average length of (358 +/-22) mm (295-; the male tibia length is (365 +/-19) mm (323-;
before the age of 15, the rotation of the tibia is changed continuously, the rotation within the change range does not need to be processed, the rotation beyond the change range needs to be processed early, and after the age of 15, the tibia basically develops completely, and a physiological external rotation angle is formed, so that the study object is that of the tibia is over the age of 15 and adults; the tibia of a normal adult has a certain torsion angle, the average value of the normal torsion angle of the tibia of a Chinese person is 23.5 degrees, the normal range is 13.5-33.5 degrees, the tibia larger or smaller than the normal range is the torsion deformity, and the tibia needs to be corrected; the correction method mainly comprises the steps that through the tibial rotation osteotomy orthopedics, an osteotomy plane is generally selected to be 20mm below a tibial tubercle, steel plate internal fixation is carried out after the distal end of a tibia is rotated after the osteotomy, foot deformity is actively corrected, the normal load bearing line of the lower limb is recovered to the maximum extent, and the long-term deformity recurrence of a patient is reduced; at present, the tibia torsion angle is gradually known by a wide range of clinicians, and the measurement method is also improved along with the development of medical technology;
the measurement method of the tibia torsion angle is mainly divided into three categories: the corpse measurement is directly carried out, the measurement is directly carried out on the corpse, the result is visual and accurate, but the corpse measurement is separated from the whole body and can not be carried out in a living body, and the clinical application is less; secondly, indirect assessment is carried out through clinical examination, the living body can be repeatedly and directly measured by the clinical examination method, the method is convenient and harmless to the human body, but accurate bony mark points are difficult to find, the result is inaccurate, and no better clinical indirect measurement method exists at present; thirdly, the CT is utilized to carry out the imaging detection, the CT measuring method can repeatedly carry out the measurement on the living body, and the result is more accurate; however, the CT measurement requires repeated radiography, which can expose the patient to a large amount of radiation in a short time, and the CT cost is too high, which increases the treatment cost of the common patient;
therefore, a tool specially used for measuring the rotation angle of the tibia needs to be designed, the use is simple, and the error of the measurement result is small.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a clinical indirect caliber of shin bone rotation angle, and realize through following technical scheme, a clinical indirect caliber of shin bone rotation angle, a serial communication port, include: the device comprises a longitudinal rod, a telescopic rod, a longitudinal rod lantern ring, an adjustable snap ring with a spring at the far end, a wing platform, a pointer, a far end protractor, a near end protractor, a telescopic rod lantern ring and an adjustable snap ring with a spring at the near end;
the inner part of the proximal end part of the longitudinal rod is hollow, and the distal end of the telescopic rod is telescopically connected in the hollow part of the proximal end of the longitudinal rod; the longitudinal rod is connected with a longitudinal rod lantern ring which can rotate around the longitudinal rod near the far end, two symmetrical sides of the longitudinal rod lantern ring are respectively connected with a wing platform, the joint of the longitudinal rod lantern ring and the wing platform is symmetrically hinged with two far end adjustable snap rings with springs, the springs are connected between the far end adjustable snap rings with the springs and the wing platforms, and the inner diameter between the two far end adjustable snap rings with the springs can be adjusted through the elasticity of the springs; the lower end of the longitudinal rod lantern ring is fixedly connected with a pointer; the far-end protractor lantern ring is fixedly connected to the longitudinal rod next to the longitudinal rod lantern ring, the far-end protractor lantern ring is vertically connected with a far-end protractor connecting rod, the far-end protractor connecting rod is perpendicular to the wing platform, and the far-end protractor is connected to the lower end of the far-end protractor connecting rod; the wing table, the longitudinal rod lantern ring, the adjustable snap ring with the spring at the far end, the pointer and the longitudinal rod locking knob form a whole;
the telescopic rod is fixedly connected with a telescopic rod lantern ring close to the near end, two symmetrical sides of the telescopic rod lantern ring are respectively connected with a wing platform, two adjustable clamping rings with springs at the near ends are symmetrically hinged at the joint of the telescopic rod lantern ring and the wing platforms, the springs are connected between the adjustable clamping rings with the springs at the near ends and the wing platforms, and the inner diameter between the two adjustable clamping rings with the springs at the near ends can be adjusted through the elasticity of the springs; the lower end of the telescopic rod lantern ring is fixedly connected with a pointer; the near-end protractor lantern ring is fixedly connected to the telescopic rod next to the telescopic rod lantern ring, the near-end protractor lantern ring is vertically connected with a near-end protractor connecting rod, the near-end protractor connecting rod is perpendicular to the wing platform, and the lower end of the near-end protractor connecting rod is connected with a near-end protractor; the wing table, the telescopic rod lantern ring, the pointer and the near-end adjustable clamping ring with the spring form a whole, and the whole is fixedly connected to the near-end of the telescopic rod;
furthermore, a groove is formed in the surface of one side of the telescopic rod, a telescopic rod positioning knob is connected to the surface of the near end of the longitudinal rod, close to the opening, corresponding to the groove, the bottom of the telescopic rod positioning knob can be screwed into the groove and firmly abutted against the groove, so that the telescopic rod and the longitudinal rod are not adjustable in position locking; the positioning knob of the telescopic rod is unscrewed, so that the telescopic rod can be randomly stretched in the longitudinal rod to adapt to the shin bones with different lengths; the expansion range of the longitudinal rod is 295-431 mm.
Furthermore, the bottom of the longitudinal rod lantern ring penetrates through the longitudinal rod lantern ring and is connected with a longitudinal rod locking knob through threads; the longitudinal rod lantern ring can not rotate on the longitudinal rod by screwing down the longitudinal rod locking knob, the longitudinal rod locking knob is unscrewed, and the longitudinal rod lantern ring can freely rotate on the longitudinal rod, so that the adjustable clamp ring with the spring at the far end also rotates, and the rotation angle of the tibia is measured after the adjustable clamp ring with the spring at the far end is attached to the anatomical positions of the inner and outer ankle body surfaces as much as possible;
further, angle marks are marked on the far-end protractor and the near-end protractor, and the marking modes of the angle marks are that the middle is 0 degree, and the left angle and the right angle are respectively deviated by 60 degrees;
further, the pointer in the close vicinity of the proximal protractor always points to be kept unchanged at the 0-degree position of the proximal protractor;
further, a layer of soft material is pasted on the inner walls of the far-end adjustable clamping ring with the spring and the near-end adjustable clamping ring with the spring; the far and near ends are provided with adjustable snap rings with springs, and the inner diameter can be adjusted in an elastic mode so as to adapt to crus with different thicknesses.
The utility model has the advantages that:
1. the clinical indirect measurement instrument for the tibia rotation angle is convenient to use and simple to operate, is specially designed for measurement of the tibia torsion angle, and reduces errors of measurement results to the greatest extent;
2. compared with cadaver measurement, the clinical indirect measurement device for the tibia rotation angle can be used for measurement on different single living bodies, and has practical significance for diseases of patients; compared with CT medical image measurement, the device has the advantages that the cost is low, the device can be repeatedly used, and the cost is greatly saved in the aspect of measuring the tibia torsion angle.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a clinical indirect measurement instrument for a tibia rotation angle;
FIG. 2 is a schematic diagram of the longitudinal rod, the telescopic rod and the auxiliary structure of the clinical indirect measurement instrument for the tibia rotation angle;
FIG. 3 is a schematic view of an adjustable snap ring with a spring at the distal end of a clinical indirect measurement instrument for measuring the rotation angle of tibia and its attached structure;
FIG. 4 is a schematic view of a proximal adjustable snap ring with a spring and its attached structure of a clinical indirect measurement instrument for measuring a tibial rotation angle;
FIG. 5 is a cross-sectional view of a longitudinal rod of a clinical indirect measurement instrument for measuring the rotation angle of tibia;
FIG. 6 is a schematic view of a distal and proximal protractor of a clinical indirect tibial rotation angle measurer;
in the drawings, the components represented by the respective reference numerals are listed below:
1-longitudinal bar, 101-telescopic bar positioning knob, 2-telescopic bar, 201-groove, 3-longitudinal bar lantern ring, 301-longitudinal bar locking knob, 4-far end with spring adjustable snap ring, 5-wing platform, 501-articulated shaft, 502-spring, 6-pointer, 7-far end protractor, 701-angle identification, 702-far end protractor lantern ring, 703-far end protractor connecting rod, 8-telescopic bar lantern ring, 9-near end with spring adjustable snap ring, 10-near end protractor, 1001-near end protractor lantern ring, 1002-near end protractor connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 6, a clinical indirect measurement instrument for a tibia rotation angle includes: the device comprises a longitudinal rod 1, a telescopic rod 2, a longitudinal rod lantern ring 3, a far-end adjustable snap ring with a spring 4, a wing platform 5, a pointer 6, a far-end protractor 7, a near-end protractor 10, a telescopic rod lantern ring 8 and a near-end adjustable snap ring with a spring 9;
the inner part of the near end part of the longitudinal rod 1 is hollow, and the far end of the telescopic rod 2 is telescopically connected in the hollow part of the near end of the longitudinal rod 1; the longitudinal rod 1 is connected with a longitudinal rod lantern ring 3 which can rotate around the longitudinal rod 1 near the far end, two symmetrical sides of the longitudinal rod lantern ring 3 are respectively connected with a wing platform 5, the joint of the longitudinal rod lantern ring 3 and the wing platform 5 is symmetrically hinged with two far end adjustable snap rings 4 with springs, the springs 502 are connected between the far end adjustable snap rings 4 with springs and the wing platforms 5, and the inner diameter between the two far end adjustable snap rings 4 with springs can be adjusted through the elasticity of the springs 502 so as to adapt to ankles with different thicknesses; the lower end of the longitudinal rod lantern ring 3 is fixedly connected with a pointer 6; the far-end protractor lantern ring 702 is fixedly connected to the longitudinal rod 1 next to the longitudinal rod lantern ring 3, the far-end protractor lantern ring 702 is vertically connected with a far-end protractor connecting rod 703, the far-end protractor connecting rod 703 is perpendicular to the wing platform 5, and the lower end of the far-end protractor connecting rod 703 is connected with a far-end protractor 7; the wing table 5, the longitudinal rod lantern ring 3, the adjustable snap ring 4 with the spring at the far end, the pointer 6 and the longitudinal rod locking knob 301 form a whole;
the telescopic rod 2 is fixedly connected with a telescopic rod lantern ring 8 close to the near end, two symmetrical sides of the telescopic rod lantern ring 8 are respectively connected with a wing platform 5, two near-end adjustable clamping rings 9 with springs are symmetrically hinged at the joint of the telescopic rod lantern ring 8 and the wing platforms 5, the springs 502 are connected between the near-end adjustable clamping rings 9 with the springs and the wing platforms 5, and the inner diameter between the two near-end adjustable clamping rings 9 with the springs can be adjusted through the elasticity of the springs 502 so as to adapt to shin bones with different thicknesses; the lower end of the telescopic rod lantern ring 8 is fixedly connected with a pointer 6; next to the telescopic rod collar 8, the proximal protractor collar 1001 is fixedly connected to the telescopic rod 2, the proximal protractor collar 1001 is vertically connected to a proximal protractor connecting rod 1002, the proximal protractor connecting rod 1002 is perpendicular to the wing platform 5, and the proximal protractor 10 is connected to the lower end of the proximal protractor connecting rod 1002; the wing table 5, the telescopic rod lantern ring 8, the pointer 6 and the near-end adjustable snap ring 9 with the spring form a whole, and the whole is fixedly connected to the near-end of the telescopic rod 2;
a groove 201 is formed in the surface of one side of the telescopic rod 2, the surface of the near end of the longitudinal rod 1, close to the opening, corresponds to the groove 201 and is connected with a telescopic rod positioning knob 101, the bottom of the telescopic rod positioning knob 101 can be screwed into the groove 201 and firmly abuts against the groove 201, and the telescopic rod 2 and the longitudinal rod 1 are not adjustable in position locking; the positioning knob 101 of the telescopic rod is unscrewed, so that the telescopic rod 2 can be randomly stretched in the longitudinal rod 1 to adapt to the shin bones with different lengths; before the age of 15, the rotation of the tibia is changed continuously, the rotation in the change range does not need to be processed, the early processing is needed when the rotation exceeds the range, and the rotation is basically developed completely after the age of 15, and the physiological internal rotation angle is formed, so that the research object is above the age of 15 and adults, and the literature shows that the average length of the tibia is 295 plus 431mm in combination with the gender and the left and right, so that the expansion range of the longitudinal rod can be designed to be 295 plus 431mm according to the average length of the tibia of adults above the age of 15 when the rod patent is implemented;
the bottom of the longitudinal rod lantern ring 3 penetrates through the longitudinal rod lantern ring 3 and is connected with a longitudinal rod locking knob 301 through threads; the longitudinal rod lantern ring 3 can not rotate on the longitudinal rod 1 by screwing down the longitudinal rod locking knob 301, the longitudinal rod locking knob 301 is unscrewed, the longitudinal rod lantern ring 3 can freely rotate on the longitudinal rod 1, so that the adjustable clamp ring 4 with the spring at the far end also rotates, and the tibia rotation angle is measured after the adjustable clamp ring 4 with the spring at the far end is attached to the anatomical positions of the inner and outer ankle body surfaces as much as possible;
the far-end protractor 7 and the near-end protractor 10 are respectively marked with angle marks in a mode that the middle is 0 degrees and the left angle and the right angle are deviated by 60 degrees;
the pointer 6 in the immediate vicinity of the proximal protractor 10 always points to the 0 ° position of the proximal protractor.
Example 2
Referring to fig. 1 to 6, a clinical indirect measurement instrument for a tibia rotation angle includes: the device comprises a longitudinal rod 1, a telescopic rod 2, a longitudinal rod lantern ring 3, a far-end adjustable snap ring with a spring 4, a wing platform 5, a pointer 6, a far-end protractor 7, a near-end protractor 10, a telescopic rod lantern ring 8 and a near-end adjustable snap ring with a spring 9;
the inner part of the near end part of the longitudinal rod 1 is hollow, and the far end of the telescopic rod 2 is telescopically connected in the hollow part of the near end of the longitudinal rod 1; the longitudinal rod 1 is connected with a longitudinal rod lantern ring 3 which can rotate around the longitudinal rod 1 near the far end, two symmetrical sides of the longitudinal rod lantern ring 3 are respectively connected with a wing platform 5, the joint of the longitudinal rod lantern ring 3 and the wing platform 5 is symmetrically hinged with two far end adjustable snap rings 4 with springs, the springs 502 are connected between the far end adjustable snap rings 4 with springs and the wing platforms 5, and the inner diameter between the two far end adjustable snap rings 4 with springs can be adjusted through the elasticity of the springs 502 so as to adapt to ankles with different thicknesses; the lower end of the longitudinal rod lantern ring 3 is fixedly connected with a pointer 6; the far-end protractor lantern ring 702 is fixedly connected to the longitudinal rod 1 next to the longitudinal rod lantern ring 3, the far-end protractor lantern ring 702 is vertically connected with a far-end protractor connecting rod 703, the far-end protractor connecting rod 703 is perpendicular to the wing platform 5, and the lower end of the far-end protractor connecting rod 703 is connected with a far-end protractor 7; the wing table 5, the longitudinal rod lantern ring 3, the adjustable snap ring 4 with the spring at the far end, the pointer 6 and the longitudinal rod locking knob 301 form a whole;
the telescopic rod 2 is fixedly connected with a telescopic rod lantern ring 8 close to the near end, two symmetrical sides of the telescopic rod lantern ring 8 are respectively connected with a wing platform 5, two near-end adjustable clamping rings 9 with springs are symmetrically hinged at the joint of the telescopic rod lantern ring 8 and the wing platforms 5, the springs 502 are connected between the near-end adjustable clamping rings 9 with the springs and the wing platforms 5, and the inner diameter between the two near-end adjustable clamping rings 9 with the springs can be adjusted through the elasticity of the springs 502 so as to adapt to shin bones with different thicknesses; the lower end of the telescopic rod lantern ring 8 is fixedly connected with a pointer 6; next to the telescopic rod collar 8, the proximal protractor collar 1001 is fixedly connected to the telescopic rod 2, the proximal protractor collar 1001 is vertically connected to a proximal protractor connecting rod 1002, the proximal protractor connecting rod 1002 is perpendicular to the wing platform 5, and the proximal protractor 10 is connected to the lower end of the proximal protractor connecting rod 1002; the wing table 5, the telescopic rod lantern ring 8, the pointer 6 and the near-end adjustable snap ring 9 with the spring form a whole, and the whole is fixedly connected to the near-end of the telescopic rod 2;
the surface of the telescopic rod 2 is provided with a length mark, so that the adjustment length of the far end and the near end can be conveniently mastered; a groove 201 is formed in the surface of one side of the telescopic rod 2, the surface of the near end of the longitudinal rod 1, close to the opening, corresponds to the groove 201 and is connected with a telescopic rod positioning knob 101, the bottom of the telescopic rod positioning knob 101 can be screwed into the groove 201 and firmly abuts against the groove 201, and the telescopic rod 2 and the longitudinal rod 1 are not adjustable in position locking; the positioning knob 101 of the telescopic rod is unscrewed, so that the telescopic rod 2 can be randomly stretched in the longitudinal rod 1 to adapt to the shin bones with different lengths; before the age of 15, the rotation of the tibia is changed continuously, the rotation in the change range does not need to be processed, the early processing is needed when the rotation exceeds the range, and the rotation is basically developed completely after the age of 15, and the physiological internal rotation angle is formed, so that the research object is above the age of 15 and adults, and the literature shows that the average length of the tibia is 295 plus 431mm in combination with the gender and the left and right, so that the expansion range of the longitudinal rod can be designed to be 295 plus 431mm according to the average length of the tibia of adults above the age of 15 when the rod patent is implemented;
the bottom of the longitudinal rod lantern ring 3 penetrates through the longitudinal rod lantern ring 3 and is connected with a longitudinal rod locking knob 301 through threads; the longitudinal rod lantern ring 3 can not rotate on the longitudinal rod 1 by screwing down the longitudinal rod locking knob 301, the longitudinal rod locking knob 301 is unscrewed, the longitudinal rod lantern ring 3 can freely rotate on the longitudinal rod 1, so that the adjustable clamp ring 4 with the spring at the far end also rotates, and the tibia rotation angle is measured after the adjustable clamp ring 4 with the spring at the far end is attached to the anatomical positions of the inner and outer ankle body surfaces as much as possible;
the far-end protractor 7 and the near-end protractor 10 are respectively marked with angle marks in a mode that the middle is 0 degrees and the left angle and the right angle are deviated by 60 degrees;
the pointer 6 in the immediate vicinity of the proximal protractor 10 always points to the 0 ° position of the proximal protractor.
Example 3
Referring to fig. 1 to 6, a clinical indirect measurement instrument for a tibia rotation angle includes: the device comprises a longitudinal rod 1, a telescopic rod 2, a longitudinal rod lantern ring 3, a far-end adjustable snap ring with a spring 4, a wing platform 5, a pointer 6, a far-end protractor 7, a near-end protractor 10, a telescopic rod lantern ring 8 and a near-end adjustable snap ring with a spring 9;
the inner part of the near end part of the longitudinal rod 1 is hollow, and the far end of the telescopic rod 2 is telescopically connected in the hollow part of the near end of the longitudinal rod 1; the longitudinal rod 1 is connected with a longitudinal rod lantern ring 3 which can rotate around the longitudinal rod 1 near the far end, two symmetrical sides of the longitudinal rod lantern ring 3 are respectively connected with a wing platform 5, the joint of the longitudinal rod lantern ring 3 and the wing platform 5 is symmetrically hinged with two far end adjustable snap rings 4 with springs, the springs 502 are connected between the far end adjustable snap rings 4 with springs and the wing platforms 5, and the inner diameter between the two far end adjustable snap rings 4 with springs can be adjusted through the elasticity of the springs 502 so as to adapt to ankles with different thicknesses; a soft cushion layer is pasted on the inner side walls of the two adjustable snap rings 4 with springs at the far ends, so that the use feeling is more comfortable; the lower end of the longitudinal rod lantern ring 3 is fixedly connected with a pointer 6; the far-end protractor lantern ring 702 is fixedly connected to the longitudinal rod 1 next to the longitudinal rod lantern ring 3, the far-end protractor lantern ring 702 is vertically connected with a far-end protractor connecting rod 703, the far-end protractor connecting rod 703 is perpendicular to the wing platform 5, and the lower end of the far-end protractor connecting rod 703 is connected with a far-end protractor 7; the wing table 5, the longitudinal rod lantern ring 3, the adjustable snap ring 4 with the spring at the far end, the pointer 6 and the longitudinal rod locking knob 301 form a whole;
the telescopic rod 2 is fixedly connected with a telescopic rod lantern ring 8 close to the near end, two symmetrical sides of the telescopic rod lantern ring 8 are respectively connected with a wing platform 5, two near-end adjustable clamping rings 9 with springs are symmetrically hinged at the joint of the telescopic rod lantern ring 8 and the wing platforms 5, the springs 502 are connected between the near-end adjustable clamping rings 9 with the springs and the wing platforms 5, and the inner diameter between the two near-end adjustable clamping rings 9 with the springs can be adjusted through the elasticity of the springs 502 so as to adapt to shin bones with different thicknesses; a soft cushion layer is pasted on the inner side walls of the two adjustable snap rings 9 with springs at the near ends, so that the use feeling is more comfortable; the lower end of the telescopic rod lantern ring 8 is fixedly connected with a pointer 6; next to the telescopic rod collar 8, the proximal protractor collar 1001 is fixedly connected to the telescopic rod 2, the proximal protractor collar 1001 is vertically connected to a proximal protractor connecting rod 1002, the proximal protractor connecting rod 1002 is perpendicular to the wing platform 5, and the proximal protractor 10 is connected to the lower end of the proximal protractor connecting rod 1002; the wing table 5, the telescopic rod lantern ring 8, the pointer 6 and the near-end adjustable snap ring 9 with the spring form a whole, and the whole is fixedly connected to the near-end of the telescopic rod 2;
a groove 201 is formed in the surface of one side of the telescopic rod 2, the surface of the near end of the longitudinal rod 1, close to the opening, corresponds to the groove 201 and is connected with a telescopic rod positioning knob 101, the bottom of the telescopic rod positioning knob 101 can be screwed into the groove 201 and firmly abuts against the groove 201, and the telescopic rod 2 and the longitudinal rod 1 are not adjustable in position locking; the positioning knob 101 of the telescopic rod is unscrewed, so that the telescopic rod 2 can be randomly stretched in the longitudinal rod 1 to adapt to the shin bones with different lengths; before the age of 15, the rotation of the tibia is changed continuously, the rotation in the change range does not need to be processed, the early processing is needed when the rotation exceeds the range, and the rotation is basically developed completely after the age of 15, and the physiological internal rotation angle is formed, so that the research object is above the age of 15 and adults, and the literature shows that the average length of the tibia is 295 plus 431mm in combination with the gender and the left and right, so that the expansion range of the longitudinal rod can be designed to be 295 plus 431mm according to the average length of the tibia of adults above the age of 15 when the rod patent is implemented;
the bottom of the longitudinal rod lantern ring 3 penetrates through the longitudinal rod lantern ring 3 and is connected with a longitudinal rod locking knob 301 through threads; the longitudinal rod lantern ring 3 can not rotate on the longitudinal rod 1 by screwing down the longitudinal rod locking knob 301, the longitudinal rod locking knob 301 is unscrewed, the longitudinal rod lantern ring 3 can freely rotate on the longitudinal rod 1, so that the adjustable clamp ring 4 with the spring at the far end also rotates, and the tibia rotation angle is measured after the adjustable clamp ring 4 with the spring at the far end is attached to the anatomical positions of the inner and outer ankle body surfaces as much as possible;
the far-end protractor 7 and the near-end protractor 10 are respectively marked with angle marks in a mode that the middle is 0 degrees and the left angle and the right angle are deviated by 60 degrees;
the pointer 6 in the immediate vicinity of the proximal protractor 10 always points to the 0 ° position of the proximal protractor.
A using method of a clinical indirect measuring device for a tibia rotation angle comprises the following steps:
(1) before use, the length of the tibia of a patient is compared, the telescopic rod positioning knob is unscrewed, and the distance between the far end and the near end is adjusted to be suitable for the length of the tibia of the patient by adjusting the telescopic rod;
(2) loosening a longitudinal rod locking knob on a distal longitudinal rod lantern ring, and rotating the distal longitudinal rod lantern ring to enable a pointer tip connected to the lower end of the longitudinal rod lantern ring to point to the position 0 degree in the middle of the distal protractor and completely coincide with the proximal zeroing pointer in the axial direction; immediately screwing the longitudinal rod locking knob to keep the longitudinal rod lantern ring on the longitudinal rod;
(3) the two adjustable snap rings with the springs at the near ends are sleeved at the tibial tubercles after being opened outwards, the inner and outer edges of the tibia are attached to the greatest extent, the two adjustable snap rings with the springs at the near ends are loosened, and the two adjustable snap rings with the springs at the near ends are tightly clamped on the legs under the action of the springs;
(4) the two adjustable snap rings with springs at the far ends are sleeved at the ankle joint after being outwards broken, the two adjustable snap rings with springs at the far ends are loosened, and the adjustable snap rings with springs at the far ends are tightly clamped at the ankle joint under the action of the springs;
(5) after the adjustable snap ring with the spring at the far end is clamped stably at the ankle joint, the longitudinal rod locking knob on the longitudinal rod lantern ring at the far end is loosened, the wing platform is held by a hand, the longitudinal rod lantern ring at the far end is rotated, the adjustable snap ring with the spring at the far end on the longitudinal rod lantern ring and the pointer are driven to rotate together by the longitudinal rod lantern ring, and when the adjustable snap ring with the spring at the far end is rotated to be free from gaps at the points of the inner and outer ankles or the vertex, the longitudinal rod locking knob is screwed again;
(6) after the step 5 is finished, the degree pointed by the pointer is directly read on the far-end protractor, and the outward rotation is a few degrees of outward rotation, and the inward rotation is a few degrees of inward rotation.
In summary, 1, the clinical indirect measurement instrument for the tibial rotation angle is convenient to use and simple to operate, is specially designed for measurement of the tibial torsion angle, and reduces the error of the measurement result to the greatest extent;
2. compared with cadaver measurement, the clinical indirect measurement device for the tibia rotation angle can be used for measurement on different single living bodies, and has practical significance for diseases of patients; compared with CT medical image measurement, the device has the advantages that the cost is low, the device can be repeatedly used, and the cost is greatly saved in the aspect of measuring the tibia torsion angle.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A clinical indirect measurement instrument for a tibial rotation angle, comprising: the device comprises a longitudinal rod, a telescopic rod, a longitudinal rod lantern ring, an adjustable snap ring with a spring at the far end, a wing platform, a pointer, a far end protractor, a near end protractor, a telescopic rod lantern ring and an adjustable snap ring with a spring at the near end;
the inner part of the proximal end part of the longitudinal rod is hollow, and the distal end of the telescopic rod is telescopically connected in the hollow part of the proximal end of the longitudinal rod; the longitudinal rod is connected with a longitudinal rod lantern ring which can rotate around the longitudinal rod near the far end, two symmetrical sides of the longitudinal rod lantern ring are respectively connected with a wing platform, the joint of the longitudinal rod lantern ring and the wing platform is symmetrically hinged with two far end adjustable snap rings with springs, the springs are connected between the far end adjustable snap rings with the springs and the wing platforms, and the inner diameter between the two far end adjustable snap rings with the springs can be adjusted through the elasticity of the springs; the lower end of the longitudinal rod lantern ring is fixedly connected with a pointer; the far-end protractor lantern ring is fixedly connected to the longitudinal rod next to the longitudinal rod lantern ring, the far-end protractor lantern ring is vertically connected with a far-end protractor connecting rod, the far-end protractor connecting rod is perpendicular to the wing platform, and the far-end protractor is connected to the lower end of the far-end protractor connecting rod; the wing table, the longitudinal rod lantern ring, the adjustable snap ring with the spring at the far end, the pointer and the longitudinal rod locking knob form a whole;
the telescopic rod is fixedly connected with a telescopic rod lantern ring close to the near end, two symmetrical sides of the telescopic rod lantern ring are respectively connected with a wing platform, two adjustable clamping rings with springs at the near ends are symmetrically hinged at the joint of the telescopic rod lantern ring and the wing platforms, the springs are connected between the adjustable clamping rings with the springs at the near ends and the wing platforms, and the inner diameter between the two adjustable clamping rings with the springs at the near ends can be adjusted through the elasticity of the springs; the lower end of the telescopic rod lantern ring is fixedly connected with a pointer; the near-end protractor lantern ring is fixedly connected to the telescopic rod next to the telescopic rod lantern ring, the near-end protractor lantern ring is vertically connected with a near-end protractor connecting rod, the near-end protractor connecting rod is perpendicular to the wing platform, and the lower end of the near-end protractor connecting rod is connected with a near-end protractor; the wing table, the telescopic rod lantern ring, the pointer and the near-end adjustable clamping ring with the spring form a whole, and the whole is fixedly connected at the near-end of the telescopic rod.
2. The clinical indirect measurement instrument for the tibia rotation angle according to claim 1, wherein a groove is formed in one side surface of the telescopic rod, a telescopic rod positioning knob is connected to a position, close to the opening, of the proximal surface of the longitudinal rod, corresponds to the groove, and the bottom of the telescopic rod positioning knob can be screwed into the groove and firmly abuts against the groove, so that the positions of the telescopic rod and the longitudinal rod are not adjustable; the positioning knob of the telescopic rod is unscrewed, so that the telescopic rod can be randomly stretched in the longitudinal rod to adapt to the shin bones with different lengths; the expansion range of the longitudinal rod is 295-431 mm.
3. The clinical indirect measurement instrument for the tibia rotation angle according to claim 1, wherein a longitudinal rod locking knob is connected to the bottom of the longitudinal rod sleeve ring and penetrates through the longitudinal rod sleeve ring through threads; the longitudinal rod lantern ring can not rotate on the longitudinal rod by screwing up the longitudinal rod locking knob, the longitudinal rod locking knob is unscrewed, and the longitudinal rod lantern ring can freely rotate on the longitudinal rod, so that the adjustable clamping ring with the spring at the far end also rotates.
4. The clinical indirect measurement instrument for the tibia rotation angle according to claim 1, wherein the distal protractor and the proximal protractor are each marked with an angle indicator, and the angle indicators are marked in a manner that the angle indicator is 0 ° in the middle and 60 ° in each of the left and right sides.
5. The clinical indirect measurement instrument for the tibia rotation angle according to claim 1, wherein the pointer in the immediate vicinity of the proximal protractor always points to be kept unchanged at the 0 ° position of the proximal protractor, and functions as a zero-resetting and measurement base.
6. The clinical indirect measurement instrument for the tibia rotation angle according to claim 1, wherein a layer of soft material is attached to inner walls of the distal adjustable snap ring with the spring and the inner walls of the proximal adjustable snap ring with the spring; the far and near ends are provided with adjustable snap rings with springs, and the inner diameter can be adjusted in an elastic mode so as to adapt to crus with different thicknesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022946018.4U CN214965568U (en) | 2020-12-07 | 2020-12-07 | Clinical indirect caliber of shin bone rotation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022946018.4U CN214965568U (en) | 2020-12-07 | 2020-12-07 | Clinical indirect caliber of shin bone rotation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214965568U true CN214965568U (en) | 2021-12-03 |
Family
ID=79083157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022946018.4U Active CN214965568U (en) | 2020-12-07 | 2020-12-07 | Clinical indirect caliber of shin bone rotation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214965568U (en) |
-
2020
- 2020-12-07 CN CN202022946018.4U patent/CN214965568U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| af Ekenstam et al. | The load on the radius and ulna in different positions of the wrist and forearm: a cadaver study | |
| Jernberger | Measurement of stability of tibial fractures: a mechanical method | |
| Thomas et al. | Comparison of measurements obtained by use of an electrogoniometer and a universal plastic goniometer for the assessment of joint motion in dogs | |
| US20180289286A1 (en) | Alignment device | |
| Yeh et al. | Effects of forearm rotation on the clinical evaluation of ulnar variance | |
| US20130041288A1 (en) | Apparatus and Method of Monitoring Healing and/or Assessing Mechanical Stiffness of a Bone Fracture Site or the Like | |
| EP2578150A1 (en) | Device for measuring knee laxity | |
| Bauman et al. | Femoral neck anteversion in ballerinas. | |
| Milner et al. | A comparison of four in vivo methods of measuring tibial torsion | |
| CN205126436U (en) | Shin bone spin control measuring device in art that fractures futilely | |
| Henenberg et al. | Correcting torsional deformities with Ilizarov's apparatus | |
| Lang et al. | Measurement of tibial torsion | |
| Ring et al. | Both scanning plane and observer affect measurements of scaphoid deformity | |
| CN112545494A (en) | Clinical indirect caliber of shin bone rotation angle | |
| CN214965568U (en) | Clinical indirect caliber of shin bone rotation angle | |
| RU2350268C1 (en) | Method of neck of femur antetorsion determination | |
| Citak et al. | Rotational stability of femoral osteosynthesis in femoral fractures–navigated measurements | |
| Eichler | Methodological errors in documenting leg length and leg length discrepancies | |
| CN211796810U (en) | Medial patella ligament operation access positioning device | |
| Tuijthof et al. | Accuracy of a CT-based bone contour registration method to measure relative bone motions in the hindfoot | |
| Gullapalli et al. | Morphometric study of femoral neck shaft angle and its clinical significance | |
| Hudson | A comparison of ultrasound to goniometric and inclinometer measurements of torsion in the tibia and femur | |
| Luchini et al. | Validity of torsional profile examination | |
| Kirby et al. | Comparison of four methods for measuring femoral anteversion | |
| RU63667U1 (en) | ORTHOPEDIC CARGO METER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |