CN104545920A - Titanium alloy positioning needle - Google Patents
Titanium alloy positioning needle Download PDFInfo
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- CN104545920A CN104545920A CN201510018036.7A CN201510018036A CN104545920A CN 104545920 A CN104545920 A CN 104545920A CN 201510018036 A CN201510018036 A CN 201510018036A CN 104545920 A CN104545920 A CN 104545920A
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- positioning needle
- titanium alloy
- quarter butt
- stock
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Abstract
The invention provides a titanium alloy positioning needle. The titanium alloy positioning needle is made from titanium alloy, and comprises a long rod main body, wherein a front end of the long rod is reversely bent rotatably to form a short rod; an internal included angle between the short rod and the long rod main body is 30-40 degrees; the positioning needle has a certain elasticity; a diamond-like film coating is arranged on the surface of the long rod main body; a coating is not arranged on the surface of the short rod. According to the characteristics of nodules of lungs and livers, the positioning needle disclosed by the invention is accurate in positioning, not prone to move, easy to find during operation, small in operation wound, and can be used for accurately cutting of a focus.
Description
Technical field
The invention belongs to medical instruments field, particularly a kind of titanium alloy positioning needle.
Background technology
In recent years, increasing needs of patients carries out Diagnosis and Treat under the help of nuclear magnetic resonance, NMR.Containing ferromagnetic insert thing under magnetic field environment by magnetic interaction time, can occur displacement and rotate, it moves degree and field strength, the quality inserting thing, size, shape and magnetic susceptibility thereof are proportional; Artifact is fairly obvious, the severe jamming judgement of image.
Titanium alloy has good machinery, anti-fatigue performance, is one of preferred material of surgery inserting.The magnetic attraction that titanium alloy produces in MRI environment is little compared with other metals, produces heat also little, and therefore titanium alloy inserting can accept MRI inspection safely, and the artifact that MRI image produces is significantly less than the inserting such as ferrum, rustless steel.By the artifact selecting suitable scanning and parameter can reduce the generation in MRI checks of titanium alloy inserting further, obtain good image.
The raising of Minimally Invasive Surgical Technology in recent years, carries out local lesion's excision by thoracoscope and becomes possibility.The lesser tubercle of pulmonary can move along with during breathing, this just gives during operation and brings greatest inconvenience, in order to find the time of focus and at substantial, the time longer harm to patient of operation is larger, therefore select suitable orientation tool to locate liver, small pulmonary artery is particularly important, still there is no good lesser tubercle positioning needle at present, particularly can produce the positioning needle of good image in MRI checks.
Summary of the invention
The present invention is directed to above shortcoming, provide a kind of positioning needle being applicable to liver, Small pulmonary nodule location, to reach accurate location, be convenient to MRI image viewing, and be not easy displacement, the object of convenient operation.
For achieving the above object, the present invention takes following technical proposals to realize:
A kind of titanium alloy positioning needle, described positioning needle is made up of titanium alloy;
Comprise a stock main body, folding is oppositely revolved in the front end of stock, forms a quarter butt;
The interior angle of quarter butt and stock main body is 30-40 degree;
Positioning needle has certain elasticity;
Stock body surfaces is provided with diamond like carbon membrane coat;
Coating is not established in quarter butt surface.
Preferably, the length of quarter butt is 10 millimeters.
Preferably, the interior angle of quarter butt and stock main body is 36 degree;
Preferably, the diameter of positioning needle is 0.8 millimeter.
Further, the thickness of described diamond-like carbon film layer is 0.02-0.05 millimeter.
Preferably, the thickness of described diamond-like carbon film layer is 0.03 millimeter.
Further, the length of positioning needle is 25-150 millimeter.
Preferably, the length of positioning needle is 50-120 millimeter.
Preferred, the length of positioning needle is 100 millimeters.
In a word, beneficial effect of the present invention is: the invention provides a kind of titanium alloy positioning needle, described positioning needle is made up of titanium alloy, can obtain more clearly under nuclear magnetic resonance, NMR good image obviously reduce metal can artifact, increase useful diagnostic message.
Positioning needle comprises a stock main body, and folding is oppositely revolved in the front end of stock, forms a quarter butt; The interior angle of quarter butt and stock main body is 30-40 degree.When oppositely revolving folding, when positioning needle uses, when stock main body and quarter butt fold, its front end is circular arc, but not general tip, avoid the damage to tissue.Simultaneously quarter butt of the present invention is that stock main body is oppositely revolved folding and formed, and quarter butt can in Small pulmonary nodule or its vicinity, and stock body guided surgery doctor can find the position of quarter butt.Simultaneously for liver, Small pulmonary nodule itself and operation time lung tissue's atrophy compacting and the feature of easily movement, the angle between selection quarter butt and guidewire body is 30-40 degree, can fixedly positioning.
Positioning needle has certain elasticity; When first meeting the use of titanium positioning guide wire, stock and quarter butt fold, and the trocar sheath through coaxial puncture needle after coaxial puncture needle puncture penetrates, and then push with coaxial inner core push rod, titanium positioning needle pushes at coaxial inner core push rod; Next meets 10 millimeters, front end and oppositely revolves folding hook and open immediately once the constraint departing from coaxial puncture needle trocar sheath, and maintains the angle set between stock and quarter butt, reaches fixing, locates nodular effect.Stock body scribbles that diamond-film-like coated optical transmitance is high, and hardness is high, anti-wear performance good, heat conductivity and insulating properties is high, chemical stability good, is convenient to use in location and operation under MRI, not untoward reaction; And quarter butt surface is not provided with coating, makes quarter butt can maintain the angle with stock, be not easy to walk.
Accompanying drawing explanation
Fig. 1 is the structural representation of titanium alloy positioning needle in one embodiment of the invention.
Fig. 2 is the structural representation of another angle of titanium alloy positioning needle in Fig. 1.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of titanium alloy positioning needle in one embodiment of the invention, and Fig. 2 is the structural representation of another angle of titanium alloy positioning needle in Fig. 1.Composition graphs 1 and Fig. 2 known, a kind of titanium alloy positioning needle, comprises stock body 1, and folding is oppositely revolved in 10 millimeters, the front end place of stock, forms the quarter butt 2 of 10 millimeters;
Stock body 1 and quarter butt 2 are integrated, and make by titanium alloy.The magnetic attraction that titanium alloy produces in MRI environment is little compared with other metals, produces heat also little, and therefore titanium alloy inserting can accept MRI inspection safely, and the artifact that MRI image produces is significantly less than the inserting such as ferrum, rustless steel.By the artifact selecting suitable scanning and parameter can reduce the generation in MRI checks of titanium alloy inserting further, obtain good image.
The length of stock body 1, according to different needs, can be divided into 25 millimeters, 30 millimeters, 35 millimeters, 40 millimeters, 45 millimeters, 50 millimeters, 55 millimeters, 60 millimeters, 65 millimeters, 70 millimeters, 75 millimeters, 75 millimeters, 80 millimeters, 85 millimeters, 90 millimeters, 95 millimeters, 100 millimeters, 120 millimeters, 150 millimeters.Can meet and can obtain good image more clearly under MRI, increase useful diagnostic message.
The diameter of stock body 1 is 0.6-1mm, and in preferred embodiment, the diameter of guidewire body is 0.8mm.
Stock body 1 surface is provided with diamond like carbon membrane coat, and diamond-film-like coated optical transmitance is high, and hardness is high, anti-wear performance good, heat conductivity and insulating properties is high, chemical stability is good, is convenient to use in location and operation under MRI.
Stock body 1 surface all oiling diamond like carbon membrane coats.
Under the prerequisite meeting result of use, superslide coating layer thickness is little cost-saved, and the thickness of general described diamond-like carbon film layer is 0.02-0.05 millimeter.In preferred embodiment, the thickness of superslide coating is 0.03mm.
Quarter butt 2 is integrated with stock main body 1 is former, and quarter butt 2 is arranged on stock main body 1 front end, oppositely revolves folding formed for 10mm place, stock main body 1 front end.It is very short that revolving after oppositely revolving folding between stock main body 1 and quarter butt 2 rolls over arc, only meets opisthotonos and carry out smoothly, maintains the angle of setting between quarter butt 2 and stock main body 1, and this result is more accurate to liver, Small pulmonary nodule location.In between quarter butt 2 and stock main body 1, angle is 30-40 degree, and in preferred embodiment, angle is 36 degree.
Quarter butt 2 is made up of titanium alloy equally.
Quarter butt 2 has certain elasticity.The elastic demand of quarter butt 2 is moderate, and elasticity is excessive, then cannot maintain the angle designed between quarter butt 2 and stock body 1, thus cannot fixedly secure, and is easily shifted in operation; Elasticity is too small, then easily scratch, tear tissue, further too small time be even difficult to fold with stock body 1.
Quarter butt 2 diameter and stock are consistent, and are 0.6-1mm, preferably 0.8mm.
Coating is not established in quarter butt 2 surface, is convenient to location lesser tubercle and can not be shifted.
When titanium alloy positioning needle of the present invention uses, first under MRI guides, after coaxial puncture needle puncture, titanium alloy positioning needle stock body 1 of the present invention and quarter butt 2 are folded, trocar sheath through coaxial puncture needle penetrates, and then pushes with coaxial inner core push rod, and titanium positioning needle is when coaxial inner core push rod pushes, the quarter butt 2 of the 10 millimeters of opisthotonos in front end opens immediately once the constraint departing from coaxial puncture needle trocar sheath, reaches fixing, locates nodular effect.Doctor can find focus fast and excise, and operating time can shorten greatly, reduces the misery of patient, and what is more important can obtain good image more clearly and obviously reduce metal meeting artifact under nuclear magnetic resonance, NMR, increases useful diagnostic message.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification made above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.
Claims (9)
1. a titanium alloy positioning needle, is characterized in that, described positioning needle is made up of titanium alloy;
Comprise a stock main body, folding is oppositely revolved in the front end of stock, forms a quarter butt;
The interior angle of quarter butt and stock main body is 30-40 degree;
Positioning needle has certain elasticity;
Stock body surfaces is provided with diamond like carbon membrane coat;
Coating is not established in quarter butt surface.
2. positioning needle according to claim 1, is characterized in that, the length of described quarter butt is 10 millimeters.
3. positioning needle according to claim 1, is characterized in that, the interior angle of quarter butt and stock main body is 36 degree.
4. positioning needle according to claim 1, is characterized in that, the diameter of positioning needle is 0.8 millimeter.
5. positioning needle according to claim 1, is characterized in that, the thickness of described diamond-like carbon film layer is 0.02-0.05 millimeter.
6. positioning needle according to claim 3, is characterized in that, the thickness of described diamond-like carbon film layer is 0.03 millimeter.
7. positioning needle according to claim 1, is characterized in that, the length of positioning needle is 25-150 millimeter.
8. positioning needle according to claim 6, is characterized in that, the length of positioning needle is 50-120 millimeter.
9. positioning needle according to claim 7, is characterized in that, the length of positioning needle is 100 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018036.7A CN104545920A (en) | 2015-01-14 | 2015-01-14 | Titanium alloy positioning needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018036.7A CN104545920A (en) | 2015-01-14 | 2015-01-14 | Titanium alloy positioning needle |
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| CN104545920A true CN104545920A (en) | 2015-04-29 |
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| CN201510018036.7A Pending CN104545920A (en) | 2015-01-14 | 2015-01-14 | Titanium alloy positioning needle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307537A (en) * | 2009-02-06 | 2012-01-04 | 塞诺克斯股份有限公司 | Anchor markers |
| CN202637680U (en) * | 2012-06-26 | 2013-01-02 | 江苏蓝域创新技术投资有限公司 | Needling instrument for puncturing and positioning pulmonary nodule |
| CN102908181A (en) * | 2012-10-31 | 2013-02-06 | 裴元民 | Breast mass positioning needle |
| CN204562160U (en) * | 2015-01-14 | 2015-08-19 | 浙江伽奈维医疗科技有限公司 | A kind of titanium alloy positioning needle |
-
2015
- 2015-01-14 CN CN201510018036.7A patent/CN104545920A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307537A (en) * | 2009-02-06 | 2012-01-04 | 塞诺克斯股份有限公司 | Anchor markers |
| CN202637680U (en) * | 2012-06-26 | 2013-01-02 | 江苏蓝域创新技术投资有限公司 | Needling instrument for puncturing and positioning pulmonary nodule |
| CN102908181A (en) * | 2012-10-31 | 2013-02-06 | 裴元民 | Breast mass positioning needle |
| CN204562160U (en) * | 2015-01-14 | 2015-08-19 | 浙江伽奈维医疗科技有限公司 | A kind of titanium alloy positioning needle |
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Application publication date: 20150429 |
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