CN109522574A - The construction method and forearm stabilizing brace of forearm surface model - Google Patents
The construction method and forearm stabilizing brace of forearm surface model Download PDFInfo
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- CN109522574A CN109522574A CN201710852363.1A CN201710852363A CN109522574A CN 109522574 A CN109522574 A CN 109522574A CN 201710852363 A CN201710852363 A CN 201710852363A CN 109522574 A CN109522574 A CN 109522574A
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Abstract
The invention discloses a kind of construction method of forearm surface model and forearm stabilizing braces, the construction method of the forearm surface model is the following steps are included: S1: referring to that finger tips carry out data acquisition to outside the forearm ancon to thumb of multiple human bodies four, obtains corresponding multiple forearm data models；S2: to each forearm data model, the characteristic plane for intercepting the forearm data model obtains forearm indicatrix, obtains corresponding more parts of forearm indicatrixes；S3: the more parts of forearm indicatrixes are aligned in predetermined position, seek the average value of the more parts of forearm indicatrixes, obtain average forearm indicatrix；S4: according to the forearm surface model of the average forearm indicatrix building standard.The construction method of the forearm surface model, the forearm surface model constructed can be used as a kind of standard, general surface model, and versatile, stickiness is good；The forearm stabilizing brace, versatile, stickiness is good.
Description
Technical field
The present invention relates to fracture the field of medical instrument technology more particularly to a kind of forearm surface model construction method and
Forearm stabilizing brace.
Background technique
In orthopedic injury clinic, because fracture of forearm caused by emergency event or osteoporosis is more multiple.Generally
, mainly use for example wooden fracture splint of stabilizing brace or gypsum etc. to consolidate fracture site the treatment of fracture of forearm
It is fixed, until fracture heals completely.Traditional stabilizing brace, because material, manufacture craft etc. limit, generally can not preferably with trouble
The limbs of person are bonded, and comfort is poor when patient wears.There are also stabilizing brace, by specially to the fracture site of patient into
The mode of row 3-D scanning reconstruct is customized design, so that stabilizing brace can be preferably bonded with limbs of patient.But
Stabilizing brace specificity obtained above is stronger, can not be suitable for different types of crowd, and versatility is poor.
Summary of the invention
Based on this, it is necessary to provide the construction method and forearm stabilizing brace of a kind of forearm surface model, the forearm is bent
The construction method of surface model can construct a kind of standard, general forearm surface model, which can be applicable in
Versatile in the forearm of different human body, stickiness is good；The forearm stabilizing brace can be suitable for the forearm of different human body, lead to
Strong with property, stickiness is good.
Its technical solution is as follows:
A kind of construction method of forearm surface model, comprising the following steps:
S1: refer to that finger tips carry out data acquisition to outside the forearm ancon to thumb of multiple human bodies four, obtain corresponding more
A forearm data model；
S2: to each forearm data model, the characteristic plane for intercepting the forearm data model obtains forearm feature
Curve obtains corresponding more parts of forearm indicatrixes；
S3: the more parts of forearm indicatrixes are aligned in predetermined position, and it is bent to seek the more parts of forearm features
The average value of line obtains average forearm indicatrix；
S4: according to the forearm surface model of the average forearm indicatrix building standard；
It is flat to include at least plane, arm protrusion bone highest point at wrist for the characteristic plane in one of the embodiments,
Face and brachioradialis and musculus flexor carpi radialis Curvature varying maximum plane, the indicatrix is corresponding to include at least feature at wrist
Curve, arm protrusion bone highest point indicatrix and brachioradialis and musculus flexor carpi radialis Curvature varying maximum indicatrix.
The characteristic plane at least further includes that thumb outer four refers to plane, the upper arm at finger tips in one of the embodiments,
Plane at oar flesh and musculus flexor carpi radialis bump pad plane and elbow position, the indicatrix correspondence at least further includes outside thumb
Plane is special at four finger finger tips position feature curves, brachioradialis and musculus flexor carpi radialis bump pad indicatrix and elbow position
Levy curve.
The indicatrix is spline curve in one of the embodiments,.
The indicatrix is circular curve in one of the embodiments, and the circular curve includes at least four circles
Arc component curve, at least four circular arc component curves are respectively circular arc component curve at palmar, circular arc component curve at back side, circular arc at ulnar side
Circular arc component curve at component curve and oar side.
The circular curve includes eight circular arc component curves in one of the embodiments,.
In one of the embodiments, the predeterminated position be at wrist, arm protrusion bone highest point, brachioradialis and oar side
Wrist musculus flexor Curvature varying maximum, thumb outer four refer at finger tips, brachioradialis and musculus flexor carpi radialis bump pad or brachioradialis with
Wherein position at two in musculus flexor carpi radialis bump pad.
The predeterminated position is brachioradialis and musculus flexor carpi radialis Curvature varying maximum and hand in one of the embodiments,
At wrist, and brachioradialis and musculus flexor carpi radialis Curvature varying maximum are main aligned position, are secondary aligned position at wrist.
In one of the embodiments, in step sl, using depth camera or handheld laser scanner to multiple people
Four refer to that finger tips carry out data acquisition outside the forearm ancon to thumb of body.
A kind of forearm stabilizing brace, using the construction method of forearm surface model as described above construct it is described before
Arm surface model makes to obtain.
The beneficial effects of the present invention are:
The construction method of the forearm surface model refers to finger end by outside the forearm ancon to thumb to multiple human bodies four
End carries out data acquisition, obtains corresponding multiple forearm data models, then obtains more parts of forearm indicatrixes accordingly again, right
More parts of forearm indicatrixes carry out alignment averaged in predetermined position, obtain average forearm indicatrix and construct standard
Forearm surface model, on the one hand, due to forearm surface model be by human body forearm limbs carry out data acquisition obtain,
It can be preferably bonded with human body forearm, stickiness is good；On the other hand, forearm surface model is by multiple human bodies again
It is acquired and carries out alignment averaged and obtain, can be used as a kind of standard, general forearm surface model, Neng Goushi
It is versatile for the forearm of most of different human bodies, initial data is provided for medical research and brace device design.
The forearm stabilizing brace, using the forearm surface model system of the construction method component of above-mentioned forearm surface model
It obtains, can either be preferably bonded with human body forearm, stickiness is good, and can be suitable for before most of different human bodies
Arm, it is versatile.
Detailed description of the invention
Fig. 1 is the flow diagram of the construction method of forearm surface model described in the embodiment of the present invention；
The structural schematic diagram of Fig. 2 is indicatrix described in the embodiment of the present invention when being spline curve forearm surface model；
The front view of Fig. 3 is indicatrix described in the embodiment of the present invention when being spline curve forearm surface model；
Fig. 4 is the structural schematic diagram one of forearm stabilizing brace described in the embodiment of the present invention；
The structural schematic diagram of Fig. 5 is indicatrix described in the embodiment of the present invention when being circular curve forearm surface model；
The front view of Fig. 6 is indicatrix described in the embodiment of the present invention when being circular curve forearm surface model；
Fig. 7 is the structural schematic diagram two of forearm stabilizing brace described in the embodiment of the present invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are
For illustrative purposes, it is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.Term as used herein " first ", " second " etc. are used herein
In differentiation object, but these objects should not be limited by these terms.
As shown in Figure 1, a kind of construction method of forearm surface model, comprising the following steps:
S1: refer to that finger tips carry out data acquisition to outside the forearm ancon to thumb of multiple human bodies four, obtain corresponding more
A forearm data model；
S2: to each forearm data model, the characteristic plane for intercepting the forearm data model obtains forearm feature
Curve obtains corresponding more parts of forearm indicatrixes；
S3: the more parts of forearm indicatrixes are aligned in predetermined position, and it is bent to seek the more parts of forearm features
The average value of line obtains average forearm indicatrix；
S4: according to the forearm surface model of the average forearm indicatrix building standard；
The construction method of the forearm surface model refers to finger end by outside the forearm ancon to thumb to multiple human bodies four
End carries out data acquisition, obtains corresponding multiple forearm data models, then obtains more parts of forearm indicatrixes accordingly again, right
More parts of forearm indicatrixes carry out alignment averaged in predetermined position, obtain average forearm indicatrix and construct standard
Forearm surface model, on the one hand, due to forearm surface model be by human body forearm limbs carry out data acquisition obtain,
It can be preferably bonded with human body forearm, stickiness is high；On the other hand, which is by multiple people again
Body forearm carries out data acquisition and simultaneously carries out what alignment averaged obtained, can be used as a kind of standard, general forearm it is bent
Surface model can be suitable for the forearm of most of different human bodies, versatile, provide original number for medical research and device design
According to the forearm surface model can be come out with 3D printing and be used for academic research, can also be used as need of the CAD model for other designs
It wants.In addition, referring to that finger tips carry out data acquisition by outside the forearm ancon to thumb to human body four, the forearm designed is bent
One end of surface model can be corresponding with the elbow position of patient forearm, and the other end can refer to finger tips position with outside patient's thumb four
Correspondence is set, the forearm stabilizing brace obtained according to the corresponding design of the forearm surface model is in use, easy to wear, fixed effect
It is good.
In the present embodiment, the characteristic plane includes at least plane, arm protrusion bone highest point plane and the upper arm at wrist
Oar flesh and musculus flexor carpi radialis Curvature varying maximum plane.The indicatrix is corresponding to include at least indicatrix, hand at wrist
Arm protrusion bone highest point indicatrix and brachioradialis and musculus flexor carpi radialis Curvature varying maximum indicatrix, i.e. every part of forearm
Corresponding indicatrix includes above at least three indicatrixes.For human body forearm, narrower width at wrist, arm protrusion bone
Highest point is not protuberance flat but with higher, the Curvature varying of brachioradialis and musculus flexor carpi radialis Curvature varying maximum
Greatly, it can most reflect human body forearm feature, be affected for the design of forearm surface model, by least intercepting forearm data mould
The three above characteristic plane of type, representative stronger, obtained indicatrix can most reflect human body forearm feature, and then be designed
To forearm surface model can also well adapt to human body forearm, be preferably bonded with patient forearm, guarantee patient wear relax
It is suitable.
Further, the characteristic plane at least further includes that thumb outer four refers to plane, brachioradialis and oar side at finger tips
Plane at wrist musculus flexor bump pad plane and elbow position.The indicatrix correspondence at least further includes that thumb outer four refers to finger end
Plane characteristic curve at end position indicatrix, brachioradialis and musculus flexor carpi radialis bump pad indicatrix and elbow position, i.e.,
Corresponding every part of forearm indicatrix includes at least six indicatrixes.For human body forearm, thumb outer four refers at finger tips, the upper arm
Also have stronger representativeness at oar flesh and musculus flexor carpi radialis bump pad and elbow position, by it is comprehensive to human body forearm with
Position carries out characteristic plane extraction at upper six, and the forearm surface model designed can be good at adapting to human body forearm, with trouble
Preferably, the comfort of patient's wearing is effectively ensured in the fitting of person's forearm.When actual design, position above six can be only intercepted as needed
The characteristic plane set, it is swift and convenient to operate；The position that interception characteristic plane can also be increased, so that every part of forearm indicatrix pair
It should include a plurality of indicatrix, the forearm surface model that design is obtained more is bonded human body forearm.
In the present embodiment, as shown in Figure 2 and Figure 3, the indicatrix can be spline curve.By at characteristic plane
It carrying out plane interception and obtains spline curve, spline curve precision is higher, and it is true to nature to the fitting effect of the outer profile of human body forearm, it is a
Property degree is higher, and obtained forearm indicatrix can preferably be fitted human body forearm, so that prepared forearm
Surface model can be preferably bonded with human body forearm, help to improve the comfort of patient's wearing.Fig. 4 is illustrated using sample
Prepared a kind of structural schematic diagram of forearm stabilizing brace when curve is as indicatrix.Optionally, the feature is bent
Line is the spline curve of closure, and the correspondence section of obtained forearm surface model is closure spline curve, practical according to forearm
When surface model makes forearm stabilizing brace, it can be fabricated to the fixed nested structure of forearm or forearm strap structure as needed
Deng use is more flexible and convenient.
In the present embodiment, as shown in Figure 5, Figure 6, the indicatrix may be circular curve.The circular curve packet
At least four circular arc component curves are included, at least four circular arc component curves are respectively circular arc component curve at palmar, circular arc point song at back side
Circular arc component curve at circular arc component curve and oar side at line, ulnar side.Circular arc song is obtained by carrying out plane interception at characteristic plane
Line, to the fitting of the outer profile of human body forearm by multi-section circular arc approximate representation, adaptability is more extensive, and versatility is stronger.It is optional
Ground, the circular curve include eight circular arc component curves.In turn, the circular curve obtained can preferably reflect human body forearm
Outer profile feature, workload when being operated is again more appropriate, swift and convenient to operate.Fig. 7 is illustrated using circular arc song
Prepared a kind of structural schematic diagram of forearm stabilizing brace when line is as indicatrix.Optionally, the indicatrix is
The circular curve of closure, at least four circular arc component curves connect the circular curve to form closure.In turn, the forearm curved die obtained
The correspondence section of type is that closure circular curve can be according to need when reality makes forearm stabilizing brace according to forearm surface model
It is fabricated to forearm fixed nested structure or forearm strap structure etc., use is more flexible and convenient.
In the present embodiment, the predeterminated position is at wrist, arm protrusion bone highest point, brachioradialis and musculus flexor carpi radialis are bent
Rate change maximum, thumb outer four refer at finger tips, brachioradialis and musculus flexor carpi radialis bump pad or brachioradialis and carpi radialis it is in the wrong
Wherein position at two in flesh bump pad.Using above-mentioned setting, position is compared with the forearm feature that can reflect human body, alignment above six
Reliably, easy to operate.Optionally, the predeterminated position is brachioradialis and musculus flexor carpi radialis Curvature varying maximum and hand
At wrist, and brachioradialis and musculus flexor carpi radialis Curvature varying maximum are main aligned position, are secondary aligned position at wrist.For people
The influence of body forearm, brachioradialis and musculus flexor carpi radialis Curvature varying maximum for wearing comfort is maximum, at wrist secondly, logical
It crosses using above-mentioned alignment thereof, the forearm surface model designed can well adapt to the forearm of most of crowds, adapt to
Property is strong, applied widely.
In the present embodiment, in step sl, using depth camera or handheld laser scanner to the forearm of multiple human bodies
Four refer to that finger tips carry out data acquisition outside ancon to thumb.It is counted by using depth camera or handheld laser scanner
According to acquisition, collection effect is good.In addition, depth camera does not use infrared mode to be scanned, when scanning, will not generate strong light, will not
Burning heat sensation is generated, the experience for carrying out acquisition individual when data acquisition is more preferable；Handheld laser scanner is carried out using infrared mode
Scanning, scanning accuracy is higher, easy to operate.Specifically, for step S2, S3, S4, can be used special feature extraction software into
Row design.
It, can be according to features such as height or weight to multiple people when carrying out data acquisition to multiple human bodies in the present embodiment
Body carries out sample classification.For example, 100 human bodies within the scope of 1.7m~1.8m can be acquired, or acquisition weight difference is 50
100 human bodies etc. within jin, in turn, prepared forearm surface model can be particularly suitable for this kind of crowds, both
It can be preferably bonded with such patient forearm, and can be suitable for the forearm of the most people such crowd.This implementation
The construction method of the forearm surface model of example, it is easy to operate, it, can either be with using the prepared forearm surface model of this method
Patient forearm is preferably bonded, and stickiness is high, and can be suitable for the forearm of most of different type human bodies, versatility
By force, applied widely and easy to wear, good fixing effect.
As shown in Fig. 4, Fig. 7, a kind of forearm stabilizing brace, using the construction method structure of forearm surface model as described above
The forearm surface model of part makes to obtain.The forearm stabilizing brace makes to obtain using above-mentioned forearm surface model, can
Enough to be preferably bonded with human body forearm, stickiness is good, and can be suitable for the forearm of most of different human bodies, versatility
By force.In addition, one end of forearm stabilizing brace can be with the elbow position of patient forearm when the forearm stabilizing brace is dressed
Corresponding, the other end can refer to that finger tips position is corresponding with outside patient's thumb four, easy to wear, good fixing effect.Optionally, institute
Stating forearm stabilizing brace can be forearm fixed nested structure or forearm strap structure etc..Optionally, the fixed branch of the forearm
Tool makes to obtain using 3D printing, easy to make.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of construction method of forearm surface model, which comprises the following steps:
S1: to outside the forearm ancon to thumb of multiple human bodies four refer to finger tips carry out data acquisition, obtain it is corresponding it is multiple before
Arm data model；
S2: to each forearm data model, the characteristic plane for intercepting the forearm data model obtains forearm indicatrix,
Obtain corresponding more parts of forearm indicatrixes；
S3: the more parts of forearm indicatrixes are aligned in predetermined position, seek the more parts of forearm indicatrixes
Average value obtains average forearm indicatrix；
S4: according to the forearm surface model of the average forearm indicatrix building standard.
2. the construction method of forearm surface model according to claim 1, which is characterized in that the characteristic plane at least wraps
Include plane at wrist, arm protrusion bone highest point plane and brachioradialis and musculus flexor carpi radialis Curvature varying maximum plane, institute
It is corresponding including at least indicatrix, arm protrusion bone highest point indicatrix and brachioradialis and oar side at wrist to state indicatrix
Wrist musculus flexor Curvature varying maximum indicatrix.
3. the construction method of forearm surface model according to claim 2, which is characterized in that the characteristic plane is at least also
Refer to plane at finger tips including outside thumb four, plane at brachioradialis and musculus flexor carpi radialis bump pad plane and elbow position,
The indicatrix correspondence at least further includes that thumb outer four refers to that finger tips position feature curve, brachioradialis and musculus flexor carpi radialis are grand
Plane characteristic curve at indicatrix and elbow position at rising.
4. the construction method of forearm surface model according to claim 1, which is characterized in that the indicatrix is batten
Curve.
5. the construction method of forearm surface model according to claim 1, which is characterized in that the indicatrix is circular arc
Curve, the circular curve include at least four circular arc component curves, and at least four circular arc component curves are respectively circular arc point at palmar
Circular arc component curve at curve, back side, circular arc component curve at circular arc component curve and oar side at ulnar side.
6. the construction method of forearm surface model according to claim 5, which is characterized in that the circular curve includes eight
Circular arc component curve.
7. the construction method of forearm surface model according to claim 1, which is characterized in that the predeterminated position is wrist
Place, arm protrusion bone highest point, brachioradialis and musculus flexor carpi radialis Curvature varying maximum, thumb outer four refer at finger tips, the upper arm
Wherein position at two in oar flesh and musculus flexor carpi radialis bump pad or brachioradialis and musculus flexor carpi radialis bump pad.
8. the construction method of forearm surface model according to claim 7, which is characterized in that the predeterminated position is upper arm oar
At flesh and musculus flexor carpi radialis Curvature varying maximum and wrist, and it is right based on brachioradialis and musculus flexor carpi radialis Curvature varying maximum
Neat position is secondary aligned position at wrist.
9. the construction method of forearm surface model according to claim 1-8, which is characterized in that in step S1
In, refer to that finger tips carry out to outside the forearm ancon to thumb of multiple human bodies four using depth camera or handheld laser scanner
Data acquisition.
10. a kind of forearm stabilizing brace, which is characterized in that using such as the described in any item forearm surface models of claim 1-9
The forearm surface model that constructs of construction method make to obtain.
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| CN201710852363.1A CN109522574B (en) | 2017-09-19 | 2017-09-19 | Forearm curved surface model construction method and forearm fixing support |
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| CN201710852363.1A CN109522574B (en) | 2017-09-19 | 2017-09-19 | Forearm curved surface model construction method and forearm fixing support |
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| US20070055191A1 (en) * | 2004-12-30 | 2007-03-08 | Saebo, Inc. | Dynamic splint assemblies |
| US20100156935A1 (en) * | 2008-12-22 | 2010-06-24 | Electronics And Telecommunications Research Institute | Method and apparatus for deforming shape of three dimensional human body model |
| US20150309535A1 (en) * | 2014-02-25 | 2015-10-29 | Medibotics Llc | Wearable Computing Devices and Methods for the Wrist and/or Forearm |
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