CN2712301Y - Guiding device for puncturation, biopsy and injection under CT - Google Patents
Guiding device for puncturation, biopsy and injection under CT Download PDFInfo
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- CN2712301Y CN2712301Y CNU2004200849424U CN200420084942U CN2712301Y CN 2712301 Y CN2712301 Y CN 2712301Y CN U2004200849424 U CNU2004200849424 U CN U2004200849424U CN 200420084942 U CN200420084942 U CN 200420084942U CN 2712301 Y CN2712301 Y CN 2712301Y
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Abstract
The utility model discloses a guiding device for punctuation, biopsy and injection under CT, which combines the tomographic image of the tomoscan device to determine the position, angle, and depth of inserting the needle, and move out the tomographic plane and guide the punctuation on the tomographic plane. The utility model comprises a base; the range of movement of the guiding mechanism of the base is in a plane surface parallel to the scanning plane. The guiding mechanism clamps the puncture needle and guides the path of the puncture needle or the automatic punctuation, biopsy, and injection. The utility model uses the three-dimensional guiding device having the robot of 3 or 4 freedom degrees to replace the robot of 5 freedom degrees, and is matched with various medical appliances to realize the accurate punctuation, biopsy and injection to the focus point under CT. The utility model has convenient operation, simple structure, and low cost, and is convenient to recheck with needle after punctuation; the guiding mechanism can penetrate into the CT scanning plane and realize the real time guiding; the guiding device for punctuation, biopsy and injection under CT can realize hand operated punctuation, automatic punctuation, automatic biopsy, and automatic injection.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of be used in combination with medical diagnosis on disease equipment such as CT scan device, nuclear magnetic resonance device or other three-dimensional imagings under the image tomography, puncture, the guiding device when biopsy, injection.
Background technology
When inside of human body generation pathological changes, need to utilize puncture that focus is carried out biopsy or treatment sometimes.Normally determine the orientation of focus and skin anchor point and the degree of depth of puncture needle by means of instrument (as the CT scan device), at first on the cross section of human body, measure the position of focus, in this aspect, select best inserting needle position and needle angle, utilize the three-dimensional structure picture decision focus of inserting needle aspect, needle angle and depth of needle and the exact position of lancet puncture.Though the CT scan device can be determined three-dimensional needle angle and depth of needle exactly, but the process of puncture is all carried out patient after the CT scan aspect shifts out, when patient leaves the CT scan device, the doctor can only be according to the judgement of oneself, determine an inserting needle direction roughly, puncture, and then carry out CT scan and confirmed.Because artificial factor is more, usually causes inserting needle inaccurate, the degree of accuracy of influence treatment.Sometimes need to repeat repeatedly inserting needle, can cause mistake to be worn when serious, bring great misery and risk to the patient.Therefore, the insider develops some and is used to the positioning means for positioning that punctures.For example: U.S. Patent number US5,957,933 disclose a kind ofly in conjunction with the three-dimensional guiding device on the CT scan device, are used to guide probe to enter in the patient body.This solid guiding device is the drag articulation humanoid robot with 5 degree of freedom, comprising waist joint A, shoulder joint B, elbow joint C with have the subjoint axle combination wrist of two joint shaft D, E.The free end wrist 40 that it has the pedestal end 42 that is connected in the CT scan device and can move with respect to the CT scan device.This solid guiding device also comprises having and is used to limit the first terminal effector spare 106 that probe inserts the guide channel of route (track).This surgical operation guider further comprises the second terminal effector spare 104 and a lasing light emitter 108 at the free end of this stereochemical structure arm, and this lasing light emitter 108 inserts route along probe and produces a guiding light beam.To the helical scanning of human body, through the processing of computer, this solid guiding device can be from the different directions of human body by CT, and the guiding probe enters in patient's the body, and shows whole inserting needle process, makes puncture needle accurately arrive lesions position.But its complex structure, processing difficulties, with high costs.And, from human body diverse location inserting needle, whether correct, because the non-probe that enters along the scanning aspect if being unfavorable for rechecking the inserting needle position, when under scanner, rechecking, can not see the image of whole pin, can only see the part of puncture needle, can't judge whether needle point is positioned at the focus center, has only the probe that enters lesions position along the scanning aspect, when under scanner, rechecking, just can see the image of whole pin, judge clearly whether needle point is positioned at the focus center.If, only probe is entered lesions position along the scanning aspect, can simplify the complexity of the hardware facility and the control sequence software of guiding device greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of accurate positioning, easy to operate, simple in structure, the guiding device of image tomograph puncture, biopsy, injection cheaply.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The guiding device of a kind of image tomograph puncture, biopsy, injection, comprise image tomoscanning device 200, guiding device 100 and be arranged at the guide 180 of guiding device end, this guiding device 100 is arranged on one side of image tomoscanning device 200, this guiding device 100 is the robots with four freedoms of motion, and this robot comprises at least: firm banking 110, be arranged on the column 120 on the firm banking 110 and be installed in motion on the column 120.
This robot is the revolute robot with four freedoms of motion of firm banking, this revolute robot's motion comprises: shoulder joint 130, big arm 140, elbow joint 150, forearm 160, carpal joint 170, this column 120 is connected with big arm 140 by shoulder joint 130, big arm 140 connects forearms 160 by elbow joint 150, and it is guides 180 in a plane that is parallel to the scanning aspect that the end of this forearm 160 connects range of movement by carpal joint 170.
This revolute robot's carpal joint 170 has the joint of swinging in the plane that is parallel to the scanning aspect at forearm place, or has and little arm swing and the composite joint that rotates around the forearm axis; This joint be provided with the weight of nulling function point to the earth's core automatically or be provided with automatic level adjusting device, to detect the angular transducer of its rotational angle.
This robot is the cartesian coordinate robot with four freedoms of motion of firm banking, the motion of this cartesian coordinate robot comprises: a transverse arm 330, be slidedly arranged on cross slide plate 340 by the feed screw nut level, this cross slide plate 340 is slidedly arranged on this column 120 by feed screw nut, and this transverse arm 330 is parallel to the scanning aspect of scanner; The end of this transverse arm 330 is provided with the first corner index dial 333 with angle indication; Be provided with handwheel or motor deceleration device at leading screw end and driving cross slide plate 340 that driving transverse arm 330 axially moves horizontally along the leading screw end that column moves up and down.
Set firmly a straight line telecontrol equipment 334 on this first angle-differentiated dish 333, the end of this linear motion device 334 is provided with terminal actuating unit: the rotating shaft of this first angle-differentiated dish connects motor deceleration device that drives its rotation and the angular transducer that detects its rotational angle.
The linear motion device 334 that is fixedly arranged on the first corner index dial is hydraulic means or motor feed screw nut carriage.
The end of this transverse arm is provided with second a corner index dial 332 perpendicular to the transverse arm axis, and this second corner index dial is fixedly arranged on the fixing head 331, sets firmly this first corner index dial that this that be parallel to the scanning aspect has the angle indication on this fixing head.
The end of this transverse arm is provided with the corner index dial 433 with angle indication; Set firmly slide rail 440 on this corner index dial, this guide 180 is slidedly arranged on the slide block 460 by slide bar 450, and this slide block 460 is slidedly arranged on this slide rail 440.
This slide rail 440 is arc-shaped slide rail or linear type slide rail.
This column 120 can also be to be slidedly arranged on the firm banking 110 with feed screw nut slide block device X-axis by parallel.
Use advantage of the present utility model to be:
The guiding device of image tomograph puncture provided by the utility model, biopsy, injection, substitute the three-dimensional guiding device of robot of 5 degree of freedom of prior art with the robot guiding device of 3 or 4 degree of freedom, cooperate various different medical utensils, realize the guiding of image tomography down accurately to the focus point puncture, biopsy, injection.This device is easy to operate, simple in structure, with low cost, and the band pin after being convenient to puncture is rechecked.And guide can be deep into the CT scan aspect, realizes guiding in real time.This device can be realized manual puncture, automatic puncturing, automatic biopsy, injection automatically.
For structure of the present utility model, characteristics and effect are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 be prior art in conjunction with the three-dimensional guiding arrangement structure figure on the CT scan device.
Fig. 2 is the structural representation of the guiding device embodiment one of image tomograph puncture of the present utility model, biopsy, injection.
Fig. 3 is the structural representation of the guiding device embodiment two of image tomograph puncture of the present utility model, biopsy, injection.
Fig. 4 is the structural representation of another embodiment of guiding device of image tomograph puncture of the present utility model, biopsy, injection.
Fig. 5 is the structural representation of the another embodiment of guiding device of image tomograph puncture of the present utility model, biopsy, injection.
Fig. 6 is this utility model image tomography guiding puncture location enforcement figure down.
Fig. 7 is the structural representation of the clamping guide of this utility model guiding device.
Fig. 8 is that the A of Fig. 7 is to view.
Fig. 9 is the another kind of structural representation of the clamping guide of this utility model guiding device.
Figure 10 is another structural representation of the clamping guide of this utility model guiding device.
Figure 11 is the another enforcement illustration of the guiding device of image tomograph puncture of the present utility model, biopsy, injection.
The specific embodiment
The present invention proposes a kind of simple in structure, with low cost, the guiding device of the image tomograph puncture of being convenient to recheck, biopsy, injection (abbreviation guiding device) is that a kind of image tomography in conjunction with the solid sectional scanning means is determined inserting needle position, needle angle and the degree of depth.Guiding device of the present utility model comprises image tomoscanning device 200 and guiding device 100.Please in conjunction with consulting Fig. 6, image tomoscanning device 200 is medical diagnosis on disease equipment such as CT scan device, nuclear magnetic resonance device or other three-dimensional imaging.Medical diagnosis on disease equipment such as this guiding device and three-dimensional imaging are connected, and data sharing is used in reference to the CT image after by digitized processing and leads device, realizes digitized, automatization; Computer is by the desired value of lesions position on the CT scan that obtains, and the control guide moves to corresponding coordinate position and realizes guiding.
Be that example is illustrated now, set up guiding device 100 of the present utility model on one side in this CT scan device with the CT scan device.For the structure that clearly demonstrates guiding device of the present utility model with and beneficial effect, at first set three-dimensional X, Y, the Z coordinate direction of CT scan device: the direction that moves horizontally of establishing the bed of CT scan device 200 is an X-axis, the direction perpendicular to X-axis in the horizontal plane of X-axis place is a Y-axis, the Z axle is perpendicular to the XOY face, and making scanning focus point overlap with zero O, the YOZ plane is the CT scan aspect.Set up three-dimensional rectangular coordinate X '-Y '-Z ' in the sound end of guiding device 100, and make plane, lancet device place Y ' O ' Z ' parallel with fault plane YOZ.At first detect the three-dimensional coordinate position of focus point O by the CT scan device, determine the fault plane YOZ of puncture inserting needle, and at body surface labelling skin entry point L, the labeling method of skin entry point L is vertical placement positioning metal gate at the entry point place, to obtain metal gate grid sectional position on the scanning aspect.As shown in Figure 5, find out focus center aspect as inserting needle aspect A by the CT scan device, in inserting needle aspect A, determine focus point O and inserting needle position L inserting needle position L and focus point O to be connected a straight line, be the inserting needle direction, the angle of itself and Z axle is inserting needle angle theta (LOZ).Because Y ', the Z ' plane of guiding device 100 are parallel with the plane of scanning motion of CT scan device 200, therefore, after CT scan is determined puncture inserting needle aspect A (YOZ), earlier focus is put in the parallel plane Y ' O ' Z ' (B face) that moves to the lancet device place of the inserting needle aspect A at O place.Rotate the guide of guiding device, the angle that makes lancet device with the scanning aspect in needle angle identical, and mobile needle tip makes near inserting needle position L.Microprocessor controller is according to difference in height and the depth of needle OL of θ angle and needle tip and pin position L, through computing, send instruction drive puncture needle by skin entry point L along the θ angle exactly automatically inserting needle to focus put O.Said process also can come manual finishing by the centre bore that puncture needle is inserted the clamping guide.Because the inserting needle route is in the scanning fault plane, but not the aspect of other directions, thereby guiding device of the present utility model compares with the three-dimensional guiding device of prior art and has advantage simple in structure, with low cost, recheck the back of being more convenient for puncturing.Concrete enforcement structure of the present utility model is as follows:
Embodiment one, consults shown in Figure 2ly, and this guiding device 100 is revolute robots, has a firm banking 110, is provided with column 120 in firm banking 110; Column 120 connects big arm 140 by shoulder joint 130; Big arm 140 connects forearm 160 by elbow joint 150; The end of forearm 160 connects guide 180 by carpal joint 170, and the range of movement of this guide 180 is to be positioned at the plane that is parallel to scanning aspect ZOY; The guide 180 of this guiding device is the two semicircle pipes of cutting open along axis 181,182 (shown in Fig. 7,8), this two semicircles pipe 181,182 is combined into the clamping guide by fastener 183, be used for clamping probe (inserting needle automatically) or guiding probe (manually inserting needle), the liner of clamping guide can be sterilized, and have different inner diameters, so that the puncture needle of the corresponding external diameter of clamping or automatic puncturing device.The guide of this guiding device can also be a clamping type pedestal (as shown in Figure 9), can clamp automatic puncturing, biopsy, injection device above it.The vectoring aircraft of this guiding device also can comprise a lasing light emitter, and this lasing light emitter inserts route along probe and produces a guiding light beam.
This revolute robot's carpal joint 170 has the joint of swinging in the plane that is parallel to the scanning aspect at forearm place; This carpal joint 170 is provided with level and indicates 190, comprising: have the weight of nulling function or point to the earth's core automatically or be provided with the angular transducer of automatic level adjusting device, to detect the angle of its rotation; The joint of forearm 160 swings is in order to realize the adjustment at guide 180 θ angle in the YOZ face.For adapting to the plane of scanning motion and the non-perpendicular situation of X-axis of scanner, this revolute robot's carpal joint can also be the composite joint that has little arm swing and rotate around the forearm axis, and have level and indicate (or weight) 190, this carpal joint not only can be realized the adjustment at guide 180 θ angle in the YOZ face, and can make parallel around the rotation of forearm axis with the plane of scanning motion, the angle that it rotated can be indicated (or weight) 190 by level and learn, to adapt to the needs of dip sweeping; This carpal joint can also be the angular transducer that is provided with automatic level adjusting device, with angle and the adjustment automatically that detects its rotation.For ease of manual puncture, terminal clamping guide is to be connected with carpal joint by a curved boom 184, and curved boom 184 and forearm axis are in same plane, as shown in Figure 7; Also can be as shown in figure 10 with the direction of forearm axis normal on.
See also Fig. 6, and in conjunction with Fig. 2.During installation, adjust guiding device 100, making the plane, place of column 120, big arm 140 and forearm 160 is that plane, lancet device place Y ' O ' Z ' is parallel with fault plane YOZ.During use, detect the three-dimensional coordinate position of focus point O, determine the fault plane YOZ of puncture inserting needle by the CT scan device, and at body surface labelling skin entry point L.Because the Y ' Z ' plane of guiding device 100 and the plane of scanning motion of CT scan device 200 be arranged in parallel, therefore, after CT scan was determined puncture inserting needle aspect A (YOZ), the inserting needle aspect A that focus is put the O place was along in the parallel plane Y ' O ' Z ' (B face) that moves to the lancet device place of X-axis.Rotate carpal joint 170, the axis that order is clamped on the lancet device in the guide 180 and the folded angle of Z axle and the scanning aspect in needle angle identical, the Z axle of adjustment guide 180 ends and the coordinate position of Y-axis make needle tip near inserting needle position L.Microprocessor controller is according to difference in height and the depth of needle OL of θ angle and needle tip and probe location L, through computing, send instruction and drive the stepper motor of being located at column and arm end, make puncture needle by skin entry point L along the θ angle exactly automatically inserting needle to focus put O, or guide exactly inserting needle to focus to put O via the clamping guide by manual mode.This shows that this utility model is simple in structure, precision is high, and is easy to operate.
Embodiment two, consult shown in Figure 3ly, showed one scan instrument 200, guiding device 300 among the figure, and this guiding device 300 has base 310, which is provided with a column 320; One transverse arm 330 is slidedly arranged on cross slide plate 340 by the feed screw nut level, and this cross slide plate 340 is slidedly arranged on this column 320 by feed screw nut, and this transverse arm 330 is parallel to the scanning aspect (XOZ face) of scanner; Leading screw end that the driving transverse arm axially moves horizontally and driving cross slide plate are provided with handwheel or motor deceleration device for manually or automatically controlling along the leading screw end that column moves up and down, it is ball screw shaft that wherein said silk is shouldered, and described motor is a stepper motor.The end of this transverse arm 330 is provided with the first corner index dial 333 with angle indication; The rotating shaft of this first corner index dial 333 connects motor deceleration device or handwheel and the angular transducer (not shown) that drives its rotation, and described motor is a stepper motor, accurately rotates to certain angle for controlling it.This first corner index dial 333 can also be located at the end of transverse arm 330 rotationally by the second corner index dial 332 of a fixing head 331 and adjustable angle.Set firmly guide 180 (clamping guide) on this corner index dial 333, be used for clamping or guiding medical examination apparatus as: lancet device, biopsy instrument or injection device, its concrete structure is with embodiment one.Guiding device 300 shown in Figure 4, this column 320 are by being slidedly arranged on the base 310 by the feed screw nut slide block device, being used for accurately regulating the X-axis position of guide 180.
See also Fig. 6, and in conjunction with Fig. 3,4.During installation, adjust guiding device 300, make transverse arm 330 be parallel to Y-axis, make plane, lancet device place Y ' O ' Z ' parallel with fault plane YOZ.During use, detect the three-dimensional coordinate position of focus point O, determine the fault plane YOZ of puncture inserting needle by the CT scan device, and at body surface labelling skin entry point L.Because the Y ' Z ' plane of guiding device 100 and the plane of scanning motion of CT scan device 200 be arranged in parallel, therefore, after CT scan was determined puncture inserting needle aspect A (YOZ), the inserting needle aspect A that focus is put the O place was along in the parallel plane Y ' O ' Z ' (B face) that moves to the lancet device place of X-axis.The first corner index dial 333 of transverse arm 330 ends is located in rotation, the axis that order is clamped on the lancet device in the guide 180 and the folded angle of Z axle and the interior needle angle of scanning aspect identical, adjust the Z axle of transverse arm 330 ends and the coordinate position of Y-axis, make needle tip near inserting needle position L.Microprocessor controller is according to difference in height and the depth of needle OL of θ angle and needle tip and probe location L, through computing, send instruction and drive the stepper motor of being located at column and arm end, make puncture needle by skin entry point L along the θ angle exactly automatically inserting needle to focus put O, or guide exactly inserting needle to focus to put O via the clamping guide by manual mode.
Guiding device of the present utility model, also can on the first corner index dial, install a straight line telecontrol equipment 334 (as shown in Figure 4), shoulder slide block device etc. as hydraulic means, motor silk, the end of this linear motion device 334 sets firmly the clamping guide, be used for clamping or guiding medical apparatus and instruments, as: lancet device, biopsy instrument or injection device.During use, earlier focus is put in the parallel plane Y ' O ' Z ' (B face) that moves to the lancet device place of the inserting needle aspect A at O place.The transverse arm 330 ends first corner index dial 333 is located in rotation, the angle that makes lancet device with the scanning aspect in needle angle identical, adjust the Z coordinate positions of transverse arm 330, make needle tip near inserting needle position L.Microprocessor controller is according to difference in height and the depth of needle OL of θ angle and needle tip and pin position L, through computing, sends instruction and drives linear motion device, make puncture needle by skin entry point L along the θ angle exactly inserting needle to focus put O.
Embodiment three, consult shown in Figure 5ly, showed one scan instrument 200, guiding device 400 among the figure, and this guiding device 400 has base 410, which is provided with a column 420; One transverse arm 430 can horizontally rotate and is slidedly arranged on movably on the column 420, and this transverse arm 430 is parallel to the scanning aspect (XOZ face) of scanner; The leading screw end that the driving transverse arm axially moves horizontally is provided with handwheel or the motor deceleration device supplies manually or automatically to control, and it is ball screw shaft that wherein said silk is shouldered, and described motor is a stepper motor.The end of this transverse arm 430 is provided with the corner index dial 433 with angle indication; Set firmly arc-shaped slide rail 440 on this corner index dial 433, this guide 180 (clamping guide) is slidedly arranged on the slide block 460 by slide bar 450, and this slide block 460 is slidedly arranged on this arc-shaped slide rail 440, and, to regulate guide 180 inserting needle directions.
In above-mentioned three kinds of guiding devices, this column 120,320,420 can also be to be slidedly arranged on the base by the feed screw nut slide block device, is used for accurately regulating the X-axis position of guide 180.
See also Fig. 6, and in conjunction with Fig. 5.During installation, adjust guiding device 400, make transverse arm 430 be parallel to Y-axis, make plane, lancet device place Y ' O ' Z ' parallel with fault plane YOZ.During use, detect the three-dimensional coordinate position of focus point O, determine the fault plane YOZ of puncture inserting needle by the CT scan device, and at body surface labelling skin entry point L.Because the Y ' Z ' plane of guiding device 400 and the plane of scanning motion of CT scan device 200 be arranged in parallel, therefore, after CT scan was determined puncture inserting needle aspect A (YOZ), the inserting needle aspect A that focus is put the O place was along in the parallel plane Y ' O ' Z ' (B face) that moves to the lancet device place of X-axis.Make slide block 460 slide by the motor gear rackwork along arc-shaped slide rail 440, make the axis that is clamped on the lancet device in the guide 180 and the folded angle of Z axle and the scanning slice song in needle angle identical, adjust the extension of transverse arm 430 and slide bar 450, make needle tip near inserting needle position L.Microprocessor controller is according to difference in height and the depth of needle OL of θ angle and needle tip and probe location L, through computing, send instruction and drive the stepper motor of being located at slide bar 450 arm ends, make puncture needle by skin entry point L along the θ angle exactly automatically inserting needle to focus put θ, or guide exactly inserting needle to focus to put O via the clamping guide by manual mode.This shows that this utility model is simple in structure, precision is high, and is easy to operate.
Figure 11 is the another enforcement illustration of the guiding device of image tomograph puncture of the present utility model, biopsy, injection.This embodiment is based in above-mentioned three kinds of guiding devices, column 120,320,420 is slidedly arranged on the base by the feed screw nut slide block device, diagram is to be that example is to explain with scheme two, this guiding device is located at the back of solid sectional scanning means, former X ' axle and Y ' axle are exchanged, so that column can move along Y direction, transverse arm can move in the X-axis direction.So use, patient's human body is not shifted out scanning means and realizes guiding in real time when can be implemented in scanning.
Claims (10)
1, the guiding device of a kind of image tomograph puncture, biopsy, injection, comprise image tomoscanning device (200), guiding device (100) and be arranged at the guide (180) of guiding device end, this guiding device (100) is arranged on one side of image tomoscanning device (200), it is characterized in that:
This guiding device (100) is a robot with four freedoms of motion, and this robot comprises at least: firm banking (110), be arranged on the column (120) on the firm banking (110) and be installed in motion on the column (120).
2, image tomograph puncture according to claim 1, biopsy, the guiding device of injection, it is characterized in that: this robot is the revolute robot with four freedoms of motion of firm banking, this revolute robot's motion comprises: shoulder joint (130), big arm (140), elbow joint (150); forearm (160); carpal joint (170); this column (120) is connected with big arm (140) by shoulder joint (130); big arm (140) is by elbow joint (150) connection forearm (160), the end of this forearm (160) is a guide (180) in a plane that is parallel to the scanning aspect by carpal joint (170) connection range of movement.
3, the guiding device of image tomograph puncture according to claim 2, biopsy, injection, it is characterized in that: this revolute robot's carpal joint (170) has the joint of swinging in the plane that is parallel to the scanning aspect at forearm place, or have and little arm swing and the composite joint that rotates around the forearm axis, this joint be provided with the weight of nulling function point to the earth's core automatically or be provided with automatic level adjusting device, to detect the angular transducer of its rotational angle.
4, the guiding device of image tomograph puncture according to claim 1, biopsy, injection, it is characterized in that: this robot is the cartesian coordinate robot with four freedoms of motion of firm banking, and the motion of this cartesian coordinate robot comprises:
One transverse arm (330) is slidedly arranged on cross slide plate (340) by the feed screw nut level, and this cross slide plate (340) is slidedly arranged on this column (120) by feed screw nut, and this transverse arm (330) is parallel to the scanning aspect of scanner; The end of this transverse arm (330) is provided with the first corner index dial (333) with angle indication; Be provided with handwheel or motor deceleration device at leading screw end and driving cross slide plate (340) that driving transverse arm (330) axially moves horizontally along the leading screw end that column moves up and down.
5, the guiding device of image tomograph puncture according to claim 4, biopsy, injection, it is characterized in that: set firmly a straight line telecontrol equipment (334) on this first angle-differentiated dish (333), the end of this linear motion device (334) is provided with terminal actuating unit; The rotating shaft of this first angle-differentiated dish connects motor deceleration device that drives its rotation and the angular transducer that detects its rotational angle.
6, the guiding device of image tomograph puncture according to claim 5, biopsy, injection is characterized in that: the linear motion device (334) that is fixedly arranged on the first corner index dial is hydraulic means or motor feed screw nut carriage.
7, according to the guiding device of the described image tomograph puncture of claim 4, biopsy, injection, it is characterized in that: the end of this transverse arm is provided with second a corner index dial (332) perpendicular to the transverse arm axis, this second corner index dial is fixedly arranged on the fixing head (331), sets firmly this first corner index dial that this that be parallel to the scanning aspect has the angle indication on this fixing head.
8, the guiding device of image tomograph puncture according to claim 4, biopsy, injection is characterized in that: the end of this transverse arm is provided with the corner index dial (433) with angle indication; Set firmly slide rail (440) on this corner index dial, this guide (180) is slidedly arranged on the slide block (460) by slide bar (450), and this slide block (460) is slidedly arranged on this slide rail (440).
9, the guiding device of image tomograph puncture according to claim 8, biopsy, injection is characterized in that: this slide rail (440) is arc-shaped slide rail or linear type slide rail.
10, according to the guiding device of claim 2 or 4 or 8 described image tomograph punctures, biopsy, injection, it is characterized in that: this column (120) can also be to be slidedly arranged on the firm banking (110) with feed screw nut slide block device X-axis by parallel.
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| CNU2004200849424U CN2712301Y (en) | 2004-06-17 | 2004-07-28 | Guiding device for puncturation, biopsy and injection under CT |
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| CN200420066079.X | 2004-06-17 | ||
| CNU2004200849424U CN2712301Y (en) | 2004-06-17 | 2004-07-28 | Guiding device for puncturation, biopsy and injection under CT |
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2004
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