CN1500449A - Multi-pattern indication dot and making method - Google Patents
Multi-pattern indication dot and making method Download PDFInfo
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- CN1500449A CN1500449A CNA021519714A CN02151971A CN1500449A CN 1500449 A CN1500449 A CN 1500449A CN A021519714 A CNA021519714 A CN A021519714A CN 02151971 A CN02151971 A CN 02151971A CN 1500449 A CN1500449 A CN 1500449A
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- index point
- nominal volume
- registration body
- ball
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Abstract
The present invention is one marking point with medical MRI and CT imaging equipment for stereo location of image and its making process. The marking point includes calibration body and registering body, the registering body has sticking unit in the lower part for fixing the marking point onto the body surface, and the calibration body is ball made of developing material and embedded inside the notch of the registering body of non-developing material. Compared with available marking point, the present invention can produce greater MRI and CT signal for easy distinction and registering with high precision.
Description
Invention field
The present invention relates to a kind of MRI of utilization and the CT medical imaging equipment carries out stereotactic index point of image and preparation method thereof, especially for navigating surgery.
Background technology
In medical domain, navigating surgery is extensively carried out in neurosurgery, department of otorhinolaryngology at present.Do navigating surgery, need obtain patient's scan-data with MRI or CT image documentation equipment, patient's CT or MRI scanogram are sent in the navigation system, the two and three dimensions image of reconstruct any direction on MRI or CT image workstation, help the doctor to carry out planning before the art, and before the art actual patient position and scanogram are carried out registration, just can reach the accurate location in the operation process.For achieving the above object, need adopt a plurality of index points on one's body, so that on image, index point is registered, preserve surgical planning, and use guide bar and index point registration before the art patient.Therefore, be can on CT, MRI image, develop not produce pseudo-shadow again to the specification requirement of index point, be easy to identification registration on MRI or CT image, easy registration before the Rhizoma Atractylodis Macrocephalae, and matter is soft, be fixed on patient on one's body patient do not have sense of discomfort.Index point is called nominal volume as the part of demarcating registration on MRI or the CT image, and the part that is used as the preceding guide bar of art and its registration is called the registration body.
Domestic clinical used index point relies on import fully now, as US Patent specification US 5363080 disclosed a kind of index points.This import index point becomes external diameter 20mm, internal diameter 5mm, height is the ring of 5mm, ring body is by the molding of PVC plastic sheeting, the inner brood lac lipid material of filling, this material presents high-brightness signal in MRI, present high density signal in CT, therefore be called developing material, otherwise be called not developing material.In use, this index point is fixed on human body surface, utilizes index point center nonvisualized hollow cylinder on MRI or CT to demarcate registration before registration and the art, so its nominal volume and registration body are one.This index point costs an arm and a leg, and each about 2 dollars, and index point is as disposable consumptive material consumption is very big clinically, each patient at every turn need be with 7-10.Because this index point is as nominal volume with the nonvisualized cylindrical part of the ring heart, therefore imaging signal is not strong, and can occur irregularly shapedly with the different of imaging angle along with scanning angle on CT or MRI image, be difficult for finding fixed point, point be demarcated inaccurate and time-consuming.Because this index point is glue lipid material will be enclosed in the PVC plastic sheeting, and to do circlewise again, so complex process, process equipment is required high, domestic processing difficulties, and the index point of import prices are rather stiff.
Summary of the invention
Purpose of the present invention is to provide a kind of novel index point, this index point except satisfying clinical requirement, also have imaging signal strong, be easy to the characteristics recognizing and register.
Further purpose of the present invention, the stated accuracy of raising index point.
The present invention also has a purpose, provides a kind of manufacturing process simple, realizes the index point of materials used cheapness easily.
Another object of the present invention is that a kind of method of making this index point is provided.
For realizing that the technical scheme that purpose of the present invention adopts is, the multimode index point, comprise nominal volume and registration body, have below the registration body index point is fixed on sticker on the human body surface, nominal volume is made of developing material, the registration body is made of developing material not, and a detachable fixture is arranged between nominal volume and the registration body.
And
Above-mentioned nominal volume is a spheroid, have above the above-mentioned registration body one with the suitable shrinkage pool of nominal volume, nominal volume is embedded in the shrinkage pool of registration body.
Above-mentioned registration body is for there being certain thickness annulus.
Above-mentioned nominal volume is the spheroid of diameter 6mm, and above-mentioned registration body is external diameter 13mm, and internal diameter and thickness are the annulus of 5mm.
When doing image scanning with MRI, above-mentioned nominal volume adopts the ball ball that includes stearol.
Do image when scanning with CT, above-mentioned nominal volume adopts stone material jewelry ball, and a device that this jewelry ball is taken out from above-mentioned registration body is arranged on the described stone material jewelry ball.
Above-mentioned registration body and function sponge or foam are made.
For realizing that the technical scheme that another object of the present invention adopted is that a kind of manufacture method of multimode index point comprises the following steps:
A) the one side of developing material sheet material is not fixed and is gone up sticker,
B) described sheet material is cut into have endoporus plate as the registration body,
C) with developing material be processed into the suitable entity of the described endoporus geomery of step b) as nominal volume,
D) the described nominal volume of step c) is embedded in the endoporus of the described registration body of step b).
And
The described sticker of step a) is a Double-face gummed paper.
Processing method in the step b) is for to cut into annulus to sheet material as the registration body with the different mould in inside and outside footpath.
The described nominal volume of step c) adopts ball ball or the stone material jewelry ball that includes stearol, and wearing in described stone material jewelry ball center hole is a pull rope, is used for the jewelry ball is taken out from described registration body.
After having adopted technique scheme, owing to make nominal volume with developing material, therefore MRI and the CT signal that produces is strong, makes index point be easier to identification and registration on MRI and CT image; Because nominal volume is a ball-type, the image of its CT or MRI all is circular on any scanning angle and imaging angle, is easy to find accurately fixed point, has improved the registration precision, thereby has improved navigation accuracy.Again because the processing technique that adopts simple, realize easily, thereby replaced import, and the material that is adopted is inexpensive, be again existing material on the market, as cod-liver oil pill and stone material jewelry ball, so cost reduces greatly, 1 yuan of each index point cost less than has very high economic benefit.
Therefore, technique scheme has just reached purpose of the present invention.
Description of drawings
Describe preferred embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the axonometric chart of import index point.
Fig. 2 is the structural representation of import index point.
Fig. 3 is that the import index point is at scanning or the asynchronous two dimension view of imaging angle.
Fig. 4 is an axonometric chart of the present invention
Fig. 5 is a structural representation of the present invention.
Fig. 6 is that the present invention is at scanning or the asynchronous two dimension view of imaging angle.
Fig. 7 is the present invention with guide bar and the sketch map of removing the index point registration after the nominal volume.
Fig. 8 is the present invention when working as nominal volume and being stone material jewelry ball, is the structural representation of a pull rope in stone material jewelry ball center hole.
The specific embodiment
As shown in Figure 2, the import index point is made of the annulus that developing material 11 impales, and it is demarcated and the function of registration is all finished by circle ring center's part 12 of not developing, and as seen from the figure, the ring heart is a hollow cylinder.
Figure 3 shows that import index point actual three width of cloth images that present when scanning or imaging angle difference, 13 is the body surface among the figure.From Fig. 3 as seen, because the nominal volume 12 of import index point is the column type that do not develop, so imaging signal is not strong, fixed point is smudgy, and particularly when scanning or imaging angle difference, the two dimensional image of nominal volume 12 presents irregularly shaped, given marker tape comes difficulty, and the registration precision is affected.
As Fig. 5, in embodiments of the present invention, index point is by nominal volume 22 and registration body 21 and be used for fixing at the sticker 20 of human body surface and form, nominal volume 22 is a spheroid, made by developing material, registration body 21 is to have a certain thickness annulus, is made by developing material not, it is intracardiac that nominal volume 22 is embedded in the ring of registration body 21 annulus, and sticker 20 is attached to below the registration body.During clinical use, with sticker 20 index point is fixed on patient and scans on one's body, index point is registered.Fig. 6 is index point of the present invention actual three width of cloth images that present when scanning or imaging angle difference, because nominal volume 22 is made of developing material and be ball-type, its imaging signal on CT or MRI is strong, and imaging all is circular on any scanning angle and imaging angle, identify clear, be highly susceptible to finding accurately fixed point, improved the registration precision.Nominal volume 22 can be removed after the scanning, patient only is being with registration body 21 to carry out daily routines.Registration body 21 is developing material not, adopts sponge, foam, plastics etc. usually, and this class material matter is soft flexibility, therefore it is submissive on one's body, firm to be fixed on patient, and patient does not have sense of discomfort, before the operation, as shown in Figure 7, in the internal ring of registration body 21, carry out registration, can navigate in the art with guide bar 33.
In actual use, nominal volume 22 can be the spheroid of 6mm with diameter, and registration body 21 available internal diameter and thickness are 5mm, and external diameter is the annulus of 13mm.Nominal volume can be selected existing material on the market for use, and for example, during as MRI scanning, nominal volume can be with the ball ball that includes stearol, as fish liver oil capsule; During as CT scan, nominal volume stone material jewelry ball.
Manufacture method of the present invention is very simple, selects the thick sponge of 5mm, and one side is pasted Double-face gummed paper, is 13mm with external diameter, and internal diameter is that the mould of 5mm carries out machinery and cuts apart, and the annular sponge sheet that just is cut into required specification is as the registration body; Adopt diameter be the stone material jewelry ball of 6mm or diameter be 6mm pill cod-liver oil as nominal volume, respectively two kinds of spheroids are placed in the sponge ring and both can.Because nominal volume 22 needs to take out from registration body 21 after scanning, fish liver oil capsule matter is soft, and is flexible, be easy to take out, and stone material jewelry ball matter is hard, is difficult for taking out, so as shown in Figure 8, is a pull rope 23 in the centre bore of jewelry ball, is used for the jewelry ball is proposed.More than various materials to be market existing, and cheap, therefore greatly reduce the production cost of index point.
The present invention can have multiple implementation in practice, as: the registration body just can also can make different shape, as square, rectangle, triangle, rhombus etc. with multiple ready-made cheap material (sponge, foam, plastics etc.); Cheap nominal volume also has multiple, as animal oil, various contrast agent etc., and different shape can be arranged also, and not necessarily spheroidal can make cube, ellipse, polygon etc.Those of ordinary skill in the art can make various suitable distortion or replacement on basis of the present invention, but all these distortion or replacement all belong to protection scope of the present invention.
Claims (12)
1. multimode index point, comprise nominal volume (22) and registration body (21), have below the registration body index point is fixed on sticker (20) on the human body surface, it is characterized in that: nominal volume (22) is made of developing material, registration body (21) is made of developing material not, between nominal volume (22) and the registration body (21) a detachable fixture is arranged.
2. multimode index point according to claim 1 is characterized in that: described nominal volume (22) is a spheroid, have above the described registration body (21) one with the suitable shrinkage pool of nominal volume (22), described nominal volume (22) is embedded in the shrinkage pool of registration body (21).
3. multimode index point according to claim 2 is characterized in that: described registration body (21) is for there being certain thickness annulus.
4. multimode index point according to claim 3 is characterized in that: described nominal volume (22) is the spheroid of diameter 6mm, and described registration body (21) is external diameter 13mm, and internal diameter and thickness are the annulus of 5mm.
5. according to the described multimode index point of claim 2 to 4, it is characterized in that: described nominal volume (22) adopts the ball ball that includes stearol.
6. according to the described multimode index point of claim 2 to 4, it is characterized in that: described nominal volume (22) adopts stone material jewelry ball, and a device (23) that this jewelry ball is taken out from described registration body (21) is arranged on the described stone material jewelry ball.
7. according to the described multimode index point of claim 1-6, it is characterized in that: described registration body (21) is made with sponge or foam.
8. the manufacture method of multimode index point comprises the following steps:
A) the one side of developing material sheet material is not fixed and is gone up sticker (20),
B) the described sheet material of step a) is cut into have endoporus plate as registration body (21),
C) be processed into and the suitable entity of the described endoporus geomery of step b) with developing material, as nominal volume (22),
D) the described nominal volume of step c) (22) is embedded in the endoporus of the described registration body of step b) (21).
9. the manufacture method of multimode index point according to claim 8 is characterized in that: the described sticker of step a) (20) is a Double-face gummed paper.
10. the manufacture method of multimode index point according to claim 8 is characterized in that: the described processing method of step b) is for to cut into annulus to sheet material as registration body (21) with the different mould in inside and outside footpath.
11. the manufacture method of multimode index point according to claim 8 is characterized in that: the described nominal volume of step c) (22) adopts ball ball or the stone material jewelry ball that includes stearol.
12. the manufacture method of multimode index point according to claim 11 is characterized in that: wearing in described stone material jewelry ball center hole is a pull rope, is used for the jewelry ball is taken out from described registration body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519714A CN1500449A (en) | 2002-11-12 | 2002-11-12 | Multi-pattern indication dot and making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519714A CN1500449A (en) | 2002-11-12 | 2002-11-12 | Multi-pattern indication dot and making method |
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| CN1500449A true CN1500449A (en) | 2004-06-02 |
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| CNA021519714A Pending CN1500449A (en) | 2002-11-12 | 2002-11-12 | Multi-pattern indication dot and making method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102178526A (en) * | 2011-05-12 | 2011-09-14 | 上海交通大学医学院附属新华医院 | Ultrasonic and nuclear magnetic resonance image fusion transluminal registration device and method |
| CN103892918A (en) * | 2012-12-27 | 2014-07-02 | 财团法人金属工业研究发展中心 | Positioning device, image superposition method and image projection system |
| CN104992450A (en) * | 2015-05-07 | 2015-10-21 | 中国科学院自动化研究所 | Hybrid imaging 3D registration method based on profile model |
| CN113733234A (en) * | 2020-05-27 | 2021-12-03 | 先临三维科技股份有限公司 | Mark point forming assembly and mark point forming method |
-
2002
- 2002-11-12 CN CNA021519714A patent/CN1500449A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102178526A (en) * | 2011-05-12 | 2011-09-14 | 上海交通大学医学院附属新华医院 | Ultrasonic and nuclear magnetic resonance image fusion transluminal registration device and method |
| CN102178526B (en) * | 2011-05-12 | 2013-03-20 | 上海交通大学医学院附属新华医院 | Ultrasonic and nuclear magnetic resonance image fusion transluminal registration device and method |
| CN103892918A (en) * | 2012-12-27 | 2014-07-02 | 财团法人金属工业研究发展中心 | Positioning device, image superposition method and image projection system |
| CN103892918B (en) * | 2012-12-27 | 2016-02-10 | 财团法人金属工业研究发展中心 | positioning device, image superposition method and image projection system |
| CN104992450A (en) * | 2015-05-07 | 2015-10-21 | 中国科学院自动化研究所 | Hybrid imaging 3D registration method based on profile model |
| CN113733234A (en) * | 2020-05-27 | 2021-12-03 | 先临三维科技股份有限公司 | Mark point forming assembly and mark point forming method |
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