CN201379582Y

CN201379582Y - CT guided puncture positioning device

Info

Publication number: CN201379582Y
Application number: CN200920089921U
Authority: CN
Inventors: 刘广辉; 韩晓东; 翟世民; 杨进民; 张和平; 贺祥; 靳海英; 张�杰; 王俊芝; 刘秋月
Original assignee: 刘广辉
Priority date: 2009-04-29
Filing date: 2009-04-29
Publication date: 2010-01-13
Anticipated expiration: 2019-04-29

Abstract

The utility model relates to a puncture positioning device under CT guide. The aim is to solve the problem of inaccurate puncture positioning. The device comprises two protractors AOB and CED marked with angle scales and a plumb bob with a line, wherein, at least the protractor AOB is a right-angle protractor, and the radius of the protractor CED is not larger than the radius of the protractor AOB. The protractor AOB is marked with length scales along the radial direction, and the plane which the protractor AOB lies on is vertical to the plane which the protractor CED lies on. The right-angle edge OA of the protractor AOB is overlapped on the symmetric axis EF of the protractor CED, and the right-angle vertex of the protractor CED and an A point of the protractor AOB coincide. One end of the plumb bob line is hung on an A point column. The puncture positioning device has significant meaning for further improving the accuracy of CT guided puncture and success rate and reducing complications, and has the advantages of simple structure, easy use and disinfection, low manufacturing cost and wide application prospect.

Description

CT ultrasonic puncture positioner

Technical field

This utility model relates to a kind of medical apparatus and instruments, the puncture positioning device under particularly a kind of CT guiding.

Background technology

CT guiding percutaneous transthoracic needle biopsy technology is used more and more widely clinically, the tuberosity in many internal organs (as lung, liver, pancreas, kidney etc.), and lump character is not bright, needs to make a definite diagnosis by this technology.It has accurate positioning, relatively B ultrasonic and common X-ray puncture success rate height, and characteristics such as complication is few, but the doctor all operates under range estimation angle condition, still has part blindness.Often because of reasons such as range estimation deviation, operating technology level, judgement, patient's cooperate degrees, cause the inserting needle deviation, thereby needing to adjust angle punctures again, increase the inserting needle number of times, the risk that produces complication also increases thereupon, especially under the situation that lesions position is in around the chest abdomen viscera trunk and the position is dark, volume is little, puncture danger heightens, and puncture success rate also descends.Chinese patent literature CN 1353969 discloses a kind of CT guide puncture position finder, be made of clamping device, angle measurer and base, but its structure is comparatively complicated, and use neither be very convenient; CN 2558330 discloses a kind of people's internal lesions puncture positioning rule, and it comprises longitudinal ruler, laterally chi, goniometer reach the fixedly track card of ruler, also has this project organization complexity, awkward problem.

The utility model content

The technical problems to be solved in the utility model provides a kind of simple in structure, accurate CT ultrasonic puncture positioner of localised puncture point and puncture angle.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of CT ultrasonic puncture positioner, this device comprises that two marks have protractor AOB, the CED of angle index and the plummet of band wire, wherein AOB is the right angle protractor at least, the radius of radius≤AOB of CED, radially mark along right angle protractor AOB has the length scale, and plane, AOB place is perpendicular to plane, CED place, and the right-angle side OA of AOB overlaps on the axis of symmetry EF of CED, and the summit at CED angle coincides with the A point of AOB, and perpendicular one end hangs on suspension stalk or the hanging column that A is ordered.

On the AB of the arc limit of described right angle protractor AOB, be that starting point marks 0～90 ° angle index successively with A.

On the right-angle side OA of described right angle protractor AOB, be that starting point marks corresponding length scale successively with O, and be the camber line in the center of circle with O along each length scale place labelling successively.

On described protractor CED, angular dimension scale successively on the camber line of its axis of symmetry EF both sides.

Described protractor CED is the right angle protractor.

Described protractor AOB, CED are made by stainless steel material or transparent rigid plastics.

The utlity model has actively useful effect:

1. remedy blind shortcoming of wearing, provide a kind of aid of novel practical to CT guiding percutaneous transthoracic needle biopsy technology, to the accuracy of further raising CT ultrasonic puncture, success rate and reduce the complication aspect and have significant meaning;

2. simple in structure, volume is little, is convenient to sterilization, and is easy for operation, and cost of manufacture is cheap;

3. assist the interventional therapys such as biopsy, intralesional tapping, injection, placement drainage tube of under the CT guiding, drawing materials, be with a wide range of applications.

Description of drawings

Fig. 1 is a kind of structural representation of CT ultrasonic puncture positioner;

Fig. 2 is a kind of user mode figure of CT ultrasonic puncture positioner.

The specific embodiment

1 one kinds of CT ultrasonic punctures of embodiment positioner, referring to Fig. 1, Fig. 2, comprise that two marks have the protractor AOB 1 of angle index, the plummet 3 of CED 2 and band wire 4, the two is and is the right angle protractor, the radius of CED is 10cm, the radius of AOB is 30cm, on the right-angle side OA of right angle protractor AOB, with O is that starting point marks corresponding length scale successively, and be the camber line in the center of circle with O along each length scale place labelling successively, on the AB of the arc limit of right angle protractor AOB, be that starting point marks 0～90 ° angle index successively with A, on right angle protractor CED, angular dimension scale successively on the camber line of its axis of symmetry EF both sides; Plane, protractor AOB place, right angle is perpendicular to plane, protractor CED place, right angle, the right-angle side OA of AOB overlaps on the axis of symmetry EF of CED, and the summit, right angle of CED coincides with the A point of AOB, perpendicular one end hangs on the hanging column 5 that is positioned at A point place, and this hanging column 5 is perpendicular to plane, protractor CED place.Described protractor AOB, CED are made by stainless steel material.

Above-mentioned CT ultrasonic puncture positioner is manipulated method:

1) on the CT tomography 6, select best puncture aspect,, on this aspect, select best body surface point of puncture O ', and mark O ' position at body surface according to CT position line and the telltale mark that presets, and along draw mark line by O ' of CT position line;

2) use the CT machine on this aspect, G upwards draws a vertical line from puncture target position central point, again from the G point to body surface point of puncture O ' line, line segment G O ' and the formed angle α of vertical line of ordering through G are the puncture angle through body surface O ', the length of CT airborne measurements line segment G O ' is puncture needle and thrusts the intravital degree of depth of people;

3) the summit O of protractor AOB and selected body surface point of puncture O ' are coincided (as if puncture needle band handle, then should be with half distance of protractor AOB cephalad or sufficient side translation needle handle thickness, so that puncture shank and protractor AOB place plane parallel), the OA limit of protractor AOB parallels with catenary 4, faces protractor CED:

1. if CT is a vertical scanning, then catenary should be overlapped on 0 ° of scale (EF) of protractor CED, and overlaps with the OA limit; During 2. as if CT scan, cephalad or the oblique x of sufficient inclination °, then protractor AOB also should do corresponding inclination, makes catenary point to x ° on protractor CED;

4) puncture through body surface point of puncture O ' to become the α angle with the OA limit with puncture needle;

5) total length of puncture needle deducts the length of line segment OO ', promptly be needle handle after needle point stings target site central point G on protractor AOB face residing length calibration points M.

2 one kinds of CT ultrasonic punctures of embodiment positioner, substantially the same manner as Example 1, difference is: protractor CED is the on-right angle protractor, and its drift angle is acute angle or obtuse angle (deciding as required), and protractor is made by corrosion resistant rigid plastics.

Claims

1. CT ultrasonic puncture positioner, it is characterized in that, this device comprises that two marks have protractor AOB, the CED of angle index and the plummet of band wire, wherein AOB is the right angle protractor at least, the radius of the radius of protractor CED≤protractor AOB, radially mark along right angle protractor AOB has the length scale, plane, protractor AOB place is perpendicular to plane, CED place, the right-angle side OA of protractor AOB overlaps on the axis of symmetry EF of protractor CED, and the summit at protractor CED angle coincides with the A point of protractor AOB, and perpendicular one end hangs on the hanging column that A is ordered.

2. CT ultrasonic puncture positioner according to claim 1 is characterized in that, on the AB of the arc limit of described right angle protractor AOB, is that starting point marks 0～90 ° angle index successively with A.

3. CT ultrasonic puncture positioner according to claim 1 and 2, it is characterized in that, on the right-angle side OA of described right angle protractor AOB, be that starting point marks corresponding length scale successively with summit O, and be the camber line in the center of circle with summit O along each length scale place labelling successively.

4. CT ultrasonic puncture positioner according to claim 3 is characterized in that, on described protractor CED, and angular dimension scale successively on the camber line limit of its axis of symmetry EF both sides.

5. CT ultrasonic puncture positioner according to claim 4 is characterized in that described protractor CED is the right angle protractor.

6. CT ultrasonic puncture positioner according to claim 5 is characterized in that described protractor AOB, CED are made by stainless steel material or transparent rigid plastics.