CN109009358A - The sterile sting device of non-blind area and its imaging method - Google Patents
The sterile sting device of non-blind area and its imaging method Download PDFInfo
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- CN109009358A CN109009358A CN201811093945.7A CN201811093945A CN109009358A CN 109009358 A CN109009358 A CN 109009358A CN 201811093945 A CN201811093945 A CN 201811093945A CN 109009358 A CN109009358 A CN 109009358A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 19
- 238000002604 ultrasonography Methods 0.000 claims abstract description 28
- 239000000523 sample Substances 0.000 claims abstract description 21
- 230000004927 fusion Effects 0.000 claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/13—Edge detection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20212—Image combination
- G06T2207/20221—Image fusion; Image merging
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Image Processing (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
A kind of sterile sting device of non-blind area and its imaging method, it include: the ultrasonic probe group being set in operation handle and the puncture needle support being set between it, wherein: ultrasonic probe group includes at least two ultrasound units, puncture needle support is movably set between two ultrasound units, further by the way that multiple deflection image Weighted Fusions of multiple ultrasound units are achieved imaging.Structure and position of the present invention by optimization puncture needle support, cooperate the image generation algorithm of special designing, completely eliminate the blind area of existing sting device, can not carry out aseptic process and be imaged have the defects that dark space or bright border.
Description
Technical field
The present invention relates to a kind of technology of medical instruments field, the sterile sting device of specifically a kind of non-blind area and its
Imaging method.
Background technique
Existing medical thrust equipment is generally fixedly connected with ultrasonic probe, by the probe oblique fixed puncture needle in side
The mode of bracket, so that doctor acquires the reflection signal of corresponding position by ultrasonic probe while puncturing and generates image
Information.Due to the volumetric constraint of ultrasonic probe, there is larger blind area as shown in Figure 1 before entering the ultrasonic visual field in puncture needle, lead
Cause dangerous property in operating process.Additionally due to the defect of existing image overlap technique, meeting in multiple image overlay process
Dark space or bright border are generated, causes extremely to be easy mutually to obscure generation malpractice with puncture needle in practical operation.Although there is technology logical
The puncture needle for crossing polymorphic structure reduces blind area, but since the limitation of structure design is so that puncture needle and ultrasonic probe can not lead to respectively
Cross aseptic process, such as cladding sterile sleeve.Since above-mentioned Multiple factors make existing sting device be unable to satisfy medical demand.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of sterile sting device of non-blind area and its imaging side
Method cooperates the image generation algorithm of special designing, completely eliminates existing wear by optimizing structure and the position of puncture needle support
The blind area of thorn device can not carry out aseptic process and be imaged have the defects that dark space or bright border.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of sterile sting devices of non-blind area, comprising: be set to the ultrasonic probe group in operation handle with
And it is set to the puncture needle support between it, in which: ultrasonic probe group includes at least two ultrasound units, puncture needle support activity
It is set between two ultrasound units.
The ultrasonic probe group is set to the end of the operation handle of bending structure, the preferred activity setting of puncture needle support
Symmetry axis or center in all ultrasound units.
The puncture needle support, including horizontal part and vertical component effect, in which: the vertical component effect for puncture needle to be arranged is hollow
Structure, horizontal part for fixing and operation handle are clamped to realize movable setting.
It is described sterile to refer to: puncture needle support and the ultrasonic probe group being set in operation handle to be socketed respectively sterile
It is clamped again after set.
The present invention relates to a kind of imaging method of the sterile sting device of non-blind area, by by multiple ultrasound units it is multiple partially
Turn image weighting fusion to be achieved.
Technical effect
Compared with prior art, the problem of this invention removes the blind areas in the imaging of existing pricking device and several ultrasounds
The problem of overlapping region dark space generated during image superposition or bright border, at the same solve existing ultrasonic probe and puncture needle without
Method realizes the problem of aseptic process.
Detailed description of the invention
Fig. 1 is existing ultrasonic puncture effect diagram；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is partial enlargement diagram of the present invention；
Fig. 4 is puncture needle support schematic diagram；
Fig. 5 is that imaging method compares figure；
Fig. 6 a and Fig. 6 b are two kinds of Weighted Fusion schematic diagrams of embodiment；
Fig. 7 is embodiment imaging schematic diagram；
Fig. 8 is embodiment effect diagram；
In figure: operation handle 1, ultrasonic probe group 2, puncture needle support 3, ultrasound unit 4, horizontal part 5, vertical component effect 6, hollow
Structure 7, puncture needle 8.
Specific embodiment
Embodiment 1
As shown in Fig. 2, for a kind of sting device that the present embodiment is related to, wherein including: being set to super in operation handle 1
Sonic probe group 2 and the puncture needle support 3 being set between it, in which: ultrasonic probe group includes two ultrasound units 4, is punctured
Needle rack 3 is movably set between two ultrasound units 4.
As shown in figure 3, the ultrasonic probe group 2 is set to the end of the operation handle 1 of bending structure, puncture needle support
3 are movably set in the symmetry axis of all ultrasound units 4 or center.
As shown in figure 4, the puncture needle support 3, including horizontal part 5 and vertical component effect 6, in which: for puncture needle 8 to be arranged
Vertical component effect 6 be hollow structure, horizontal part for fixing 5 is clamped with operation handle 1.
The vertical component effect 6 is preferably placed at the symmetry axis of two ultrasound units 4.
The present embodiment is related to a kind of imaging method of sterile sting device of non-blind area, by by the multiple of multiple ultrasound units
Deflection image Weighted Fusion is achieved, and further obviates dark space or the bright border of overlapping region compared with prior art.
Multiple ultrasound units, preferably two.
The deflection image refers to: each ultrasound unit is sampled and is divided with parallel/direction for deflecting from puncture needle
It Huo get not two images.
The deflection image is preferably parallel and the every frame of deflection staggeredly carries out.
As shown in figure 5, the finally obtained image I of this method includes that single frames deflection image region x1, two frame deflection images are folded
Add region x2 and three frame deflection image superposition region x3.
The Weighted Fusion includes: inclined obtained by the synthesis and two ultrasound units of adjacent two frame of each ultrasound unit
Turn the synthesis between image.
As shown in figures 6 a and 6b, the weighting that the sequence of the Weighted Fusion is not limited to first carry out each ultrasound unit is melted
It closes, then carries out the further Weighted Fusion of two ultrasound unit combination pictures；Or first the respective deflection of two ultrasound units is schemed
As further Weighted Fusion is carried out after Weighted Fusion again and obtains final image.
The synthesis refers to: being carried out obtaining superimposed combination picture after weight is divided equally according to the superposition number of overlap-add region
Or final image, i.e.,Wherein: IaFor combination picture or final image, I11And I12Respectively two two frames
Deflection image in deflection image overlap-add region x2；OrWherein: IbFor combination picture or most
Whole image, I21~I23Deflection image in respectively three three frame deflection image superposition region x3.
As shown in fig. 7, it is further provided with buffer area on the two frame deflection image superposition region x2, the buffer area
Domain uses but is not limited to: being the buffer strip h that symmetrical axial sides extend with overlap-add region1And h2。
Synthesis in the buffer area, by the way of fixed weight or variation weight, wherein fixed weight refers to
Buffer areaVariation weight refers to weight size according to superposed positions and buffering
Depending on the distance at the edge in region, preferably change in a linear fashion.
The data that direction for being parallel to puncture needle carries out the image of sampling acquisition are rendered as rectangle, pass through geometric transformation
The image that the available direction for deflecting from puncture needle is sampled, any point on combination picture or final image can be with
It is obtained by inverse transformation and corresponds to the coordinate in rectangular in form, therefore the variation weight is especially by following manner reality
It is existing:
1. calculating the pixel should be by which normalized coordinate of each deflection image to each pixel in composograph
Point synthesis remembers that the coordinate points of deflection image are (xi, yi), i=[0, N-1], N are deflection image sum；As calculated xi,yi
When more than [0,1] range, show that the deflection image is not involved in current pixel synthesis.Initialize the composite coefficient of all deflection images
Wi, for participating in deflection image, that is, W of current pixel synthesisi=1/M, wherein M is the number for participating in the deflection image of synthesis, no
Participate in the composite coefficient W of the deflection image of current pixel synthesisi=0.
2. carrying out traversal calculating: x to the pixel in each deflection image for participating in synthesisi* D, i.e., each pixel distance its
The distance at the edge of the deflection image of itself, in which: D is the width of deflection image: when meeting xi* D < H, in which: H is buffer area
The width in domain, then be in buffer area, then calculates the transition factor a of each deflection image in buffer areai=xi*
D/H and transition factor bi=Wi*(1-ai)/(M-K), and update the composite coefficient W ' for being located at the deflection image of buffer areai=
ai*WiAnd not buffer area image composite coefficient W 'i=Wi+SUM(bi), i.e., all images in buffer area
B sum, in which: H is the width of buffer area, and K is the quantity of deflection image in buffer area.
3. obtaining the resulting pixel I=SUM (W of current location by updated composite coefficienti*I(xi, yi))。
The width of the buffer area, size use but are not limited to the width of 10~200 pixels.
The composite coefficient only needs needle after primary generate when shape/position of deflection image does not change
It is applicable to all frames.
As shown in figure 8, for the imaging effect figure that above-mentioned fusion method obtains, this method as can be seen compares Fig. 1 and Fig. 6
The prior art in left side obviously solves the problems, such as the problem of puncture needle blind area and overlapping region dark space or bright border.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (10)
1. a kind of sterile sting device of non-blind area characterized by comprising the ultrasonic probe group that is set in operation handle and
The puncture needle support being set between it, in which: ultrasonic probe group includes at least two ultrasound units, and puncture needle support is located at two
Between a ultrasound unit；
The ultrasonic probe group is set to the end of the operation handle of bending structure, the puncture needle support, including level
Portion and vertical component effect, in which: the vertical component effect for puncture needle to be arranged is hollow structure, horizontal part for fixing and operation handle card
It connects.
2. the sterile sting device of non-blind area according to claim 1, characterized in that the puncture needle support is located at all
The symmetry axis of ultrasound unit or center.
3. the sterile sting device of non-blind area according to claim 1, characterized in that described sterile to refer to: by puncture needle
Bracket and the ultrasonic probe group being set in operation handle are clamped again after being socketed sterile sleeve respectively.
4. a kind of imaging method of the sterile sting device of non-blind area, which is characterized in that by the way that the ultrasound of mutual angled setting is single
The obtained overlapping image of member is fused to piece image by weighting scheme；
The deflection image refers to: each ultrasound unit sample and obtain respectively with parallel/direction for deflecting from puncture needle
Obtain two images；
The Weighted Fusion includes: deflection figure obtained by the synthesis and two ultrasound units of adjacent two frame of each ultrasound unit
Synthesis as between.
5. imaging method according to claim 4, characterized in that the synthesis refers to: according to the superposition of overlapping image
The superposition number in region carries out obtaining superimposed combination picture or final image after weight is divided equally.
6. imaging method according to claim 4 or 5, characterized in that the overlap-add region enterprising one of the overlapping image
Step is equipped with buffer area.
7. imaging method according to claim 6, characterized in that the synthesis in the buffer area is weighed using fixed
Value or the mode for changing weight are realized.
8. imaging method according to claim 7, characterized in that the variation weight, especially by following manner reality
It is existing:
1. calculating the pixel should be closed by which normalized coordinate point of each deflection image to each pixel in composograph
At, remember deflection image coordinate points be (xi, yi), i=[0, N-1], N are deflection image sum；As calculated xi,yiIt is more than
When [0,1] range, show that the deflection image is not involved in current pixel synthesis；Initialize the composite coefficient W of all deflection imagesi,
For participating in deflection image, that is, W of current pixel synthesisi=1/M, wherein M is the number for participating in the deflection image of synthesis, is not joined
The composite coefficient W of the deflection image of sovolin preceding pixel synthesisi=0；
2. carrying out traversal calculating: x to the pixel in each deflection image for participating in synthesisi* D, i.e., each pixel distance its own
The distance at the edge of deflection image, in which: D is the width of deflection image: when meeting xi* D < H, in which: H is the width of buffer area
Degree, then be in buffer area, then calculates the transition factor a of each deflection image in buffer areai=xi* D/H and
Transition factor bi=Wi*(1-ai)/(M-K), and update the composite coefficient W ' for being located at the deflection image of buffer areai=ai*WiWith
And not buffer area image composite coefficient W 'i=Wi+SUM(bi), i.e., the b's of all images in buffer area
With, in which: H is the width of buffer area, and K is the quantity of the deflection image in buffer area；
3. obtaining the resulting pixel I=SUM (W of current location by updated composite coefficienti*I(xi, yi))。
9. imaging method according to claim 6, characterized in that the width of the buffer area is 10~200 pictures
The width of element.
10. imaging method according to claim 8, characterized in that the composite coefficient is in shape/position of deflection image
It sets applicable for all frames after only needing primary generate in the case of not changing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093945.7A CN109009358B (en) | 2018-09-19 | 2018-09-19 | Non-blind area sterile puncture device and imaging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093945.7A CN109009358B (en) | 2018-09-19 | 2018-09-19 | Non-blind area sterile puncture device and imaging method thereof |
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| CN109009358A true CN109009358A (en) | 2018-12-18 |
| CN109009358B CN109009358B (en) | 2024-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109157267A (en) * | 2018-10-25 | 2019-01-08 | 深圳深超换能器有限公司 | Ultrasonic probe puncture device and lancing system |
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