CN109009115B - Rotary shrinkage type mammary gland fixing mechanism for nuclear magnetic environment and using method - Google Patents
Rotary shrinkage type mammary gland fixing mechanism for nuclear magnetic environment and using method Download PDFInfo
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- CN109009115B CN109009115B CN201810948230.9A CN201810948230A CN109009115B CN 109009115 B CN109009115 B CN 109009115B CN 201810948230 A CN201810948230 A CN 201810948230A CN 109009115 B CN109009115 B CN 109009115B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
- A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
- A61B5/4312—Breast evaluation or disorder diagnosis
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Abstract
The invention discloses a rotary shrinkage type breast fixing mechanism for a nuclear magnetic environment and a using method thereof, and belongs to the field of medical instruments. Comprises a fixing frame, a fixing disc I, a fixing disc II, a fixing disc III, a telescopic universal coupling, a sliding rod and a tissue bracket. The fixing frame comprises a fixed upper plate, a fixed middle plate, a fixed lower plate and a Z-shaped connecting sheet. The fixed disc comprises a fixed sheet and a sliding sheet, and the fixed sheet is connected with the sliding sheet through a sliding rod. Adjacent fixed disks are connected through a telescopic universal coupling, and a tissue bracket is connected with a sliding rod. The invention can be used in nuclear magnetic environment, and the fixing mechanism can be adjusted according to individual differences of patients to adapt to different crowds, so as to fix breast tissues.
Description
Technical Field
The invention discloses a rotary shrinkage type mammary gland fixing mechanism for a nuclear magnetic environment and a using method thereof, relates to the field of medical equipment, and is particularly applied to mammary gland interventional operation in the nuclear magnetic environment.
Background
At present, a plurality of medical institutions at home and abroad treat breast by adopting a mammary gland interventional therapy mode under a nuclear magnetic environment
Adenocarcinoma, the prone position of a patient is commonly used in breast treatment procedures. Because the mammary gland tissue is not supported by bones, the tissue mobility is strong, when the tail end of the puncture needle performs interventional operation on the mammary gland focus point, the focus point is easy to generate offset phenomenon, the operation difficulty is increased, and the operation accuracy is affected. The patent application publication number CN105726137a discloses a mammary gland interventional operation tissue fixing device which can be used in a nuclear magnetic environment, wherein the mammary gland tissue fixing device in the device comprises three level baffles and three corresponding level positioning sliding blocks, which form a cylindrical space, and the mammary gland tissue fixing device cannot be clamped according to the original shape of the mammary gland tissue. CN107468252a discloses a breast biopsy device for prone position in nuclear magnetic environment, the breast tissue fixing device in the device is composed of four breast tissue tightening mechanisms and distributed circumferentially in a surrounding manner, but the breast tissue fixing device can not be adjusted according to the original shape of breast tissue, and has no individuation, so that patients are uncomfortable in the operation process. It is therefore necessary to design a rotary contracting breast immobilization mechanism for use in a nuclear magnetic environment that can create different spaces and achieve immobilization of breast tissue according to different tissue morphologies.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the rotary shrinkage type mammary gland fixing mechanism for the nuclear magnetic environment and the use method thereof, and the rotary shrinkage type mammary gland fixing mechanism clamps mammary gland tissues in the mammary gland interventional operation process, so that focus points are stabilized, the operation precision is improved, and the mammary gland tissue fixing mechanism can puncture mammary glands in all directions.
The invention discloses a rotary shrinkage type breast fixing mechanism for a nuclear magnetic environment, which comprises a fixing frame, a fixing disc I, a fixing disc II, a fixing disc III, a telescopic universal coupling, a sliding rod and a tissue bracket, and is characterized in that: the fixing frame comprises a fixed upper plate, a fixed middle plate, a fixed lower plate and a Z-shaped connecting sheet; the fixed disc I comprises a sliding piece I and a fixed piece I, and the sliding piece I is arranged on the fixed piece I; the fixed disc II comprises a sliding sheet II and a fixed sheet II, the sliding sheet II is arranged on the fixed sheet II, and the fixed disc I is connected with the fixed disc II through a telescopic universal coupling; the fixed disc III comprises a sliding sheet III and a fixed sheet III, the sliding sheet III is arranged below the fixed sheet III, and the fixed disc II is connected with the fixed disc III through a telescopic universal coupling; the telescopic universal coupler comprises a joint, a cross shaft and a telescopic rod; the upper part of the sliding rod is cylindrical, the lower part of the sliding rod is square, the convex groove is arranged on the side surface of the sliding rod, and the threaded hole is arranged on the bottom surface of the sliding rod; the tissue bracket comprises a tissue bracket, a tissue support and two through holes, wherein the two through holes in the tissue bracket are arranged on the tissue bracket, the two through holes in the tissue bracket are matched with the two threaded holes in the sliding rod, and the sliding rod is fixedly connected with the tissue bracket through screws; the fixed upper plate comprises a positioning hole I, the fixed middle plate comprises a notch, and the fixed lower plate comprises a positioning hole II; the sliding piece I comprises three rhombic notch I which are uniformly distributed along the circumference of the axis of the sliding piece I; the fixing piece I comprises three square notch I, three groove slide ways I and three round holes I, and the square notch I, the groove slide ways I and the round holes I are uniformly distributed along the circumference of the axis of the fixing piece I respectively; the sliding piece II comprises three rhombic notch II and three oblique cylindrical notches, and the rhombic notch II and the oblique cylindrical notches are uniformly distributed along the circumference of the axis of the sliding piece II respectively; the fixing piece II comprises three square notch II, three groove slide ways II and three round holes II, and the square notch II, the groove slide ways II and the round holes II are uniformly distributed along the circumference of the axis of the fixing piece II respectively; the sliding plate III comprises three rhombic notch III which are uniformly distributed along the circumference of the axis of the sliding plate III respectively; the slide way I is matched with the convex groove in the slide rod, the upper part of the slide rod, namely the cylindrical part, is placed in the rhombic notch I in the slide plate I, when the slide plate I is rotated clockwise, the slide plate I pushes the slide rod along the radial direction towards the axis, so that the convex groove in the slide rod slides towards the axis along the groove slide way I in the fixing piece I, and the circular diameter formed by the tissue bracket can be reduced; when the sliding plate I rotates anticlockwise, the sliding plate I pushes the sliding rod along the radial direction towards the opposite direction of the axle center, so that the convex groove in the sliding rod slides along the groove slideway I in the fixing piece I towards the opposite direction of the axle center, and the circular diameter formed by the tissue bracket can be enlarged; the sliding plate II in the fixed disc II is connected with the fixed plate II through a sliding rod, the lower part of the sliding rod, namely the square part, is placed in a square notch II in the fixed plate II, the groove slideway II is matched with a convex groove in the sliding rod, the upper part of the sliding rod, namely the cylindrical part, is placed in a square notch II in the sliding plate II, the lower part of the sliding rod is connected with a tissue bracket, when the sliding plate II is rotated clockwise, the sliding plate II pushes the sliding rod in the radial direction towards the axis, so that the convex groove in the sliding rod slides towards the axis along the groove slideway II in the fixed plate II, and the circular diameter formed by the tissue bracket can be reduced; when the sliding plate II is rotated anticlockwise, the sliding plate II pushes the sliding rod along the radial direction towards the opposite direction of the axis, so that the convex groove in the sliding rod slides along the groove slideway II in the fixing plate II towards the opposite direction of the axis, and the circular diameter formed by the tissue bracket can be enlarged; the sliding plate III in the fixed disc III is connected with the fixed plate III through a sliding rod, the lower part of the sliding rod, namely the square part, is placed in a square notch III in the fixed plate III, the groove slideway III is matched with a convex groove in the sliding rod, the upper part of the sliding rod, namely the cylindrical part, is placed in a square notch III in the sliding plate III, the lower part of the sliding rod is connected with a tissue bracket, when the sliding plate III is rotated clockwise, the sliding plate III pushes the sliding rod in the radial direction towards the axis, so that the convex groove in the sliding rod slides towards the axis along the groove slideway III in the fixed plate III, and the circular diameter formed by the tissue bracket can be reduced; when the slide plate III is rotated anticlockwise, the slide plate III pushes the slide rod along the radial direction in the opposite direction of the axis, so that the convex groove in the slide rod slides along the groove slideway III in the fixing plate III in the opposite direction of the axis, and the circular diameter formed by the tissue bracket can be enlarged; the diameter range that three tissue brackets of fixed disc I can form is 100mm-150mm, the diameter range that three tissue brackets of fixed disc II can form is 50mm-100mm, the diameter range that three tissue brackets of fixed disc III can form is 0mm-50mm, fixed disc I and fixed disc II are connected through three telescopic universal couplings, two ends of the joint in the telescopic universal couplings are respectively matched with three round holes I in the fixed sheet I and three round holes II in the fixed sheet II in a shaft hole manner, the diameter of the circle center of the round hole I is 200mm, the diameter of the circle center of the round hole II is 150mm, and the round holes I and the round holes II are in different diameters, so that the telescopic universal couplings incline by 30 degrees when the round holes I and the round holes II are matched with the shaft holes of the telescopic universal couplings; the fixed disc II is connected with the fixed disc III through three telescopic universal couplings, two ends of a joint in the telescopic universal couplings are respectively matched with three round holes II in the fixing piece II and three round holes III in the fixing piece III in a shaft hole mode, the diameter of the circle center of the round hole II is 150mm, the diameter of the circle center of the round hole III is 100mm, the round holes II and the round holes III are in different diameters, and when the round holes II and the round holes III are matched with the shaft holes of the telescopic universal couplings, the telescopic universal couplings incline at an angle of 30 degrees; the fixed disc I, the fixed disc II and the fixed disc III are connected with the shaft hole of the telescopic universal coupler in a matched way, so that the whole device is conical and accords with the shape of human mammary tissue; the fixed upper plate in the mount passes through screw connection with the prone support, and notch and the upper end of Z shape connection piece on the fixed medium plate are carried out the cooperation and are connected, and the lower extreme of Z shape connection piece links to each other with stationary blade I's lower surface welding, and locating hole II in the fixed lower plate cooperates with locating hole I shaft hole in the fixed upper plate, and the fixed medium plate can rotate in the space that fixed upper plate and fixed lower plate formed, makes whole device along the central axis axial rotation through Z shape connection piece to prevent scalable universal joint in situ and hinder carrying out puncture biopsy to mammary tissue.
The beneficial effects of the invention are as follows:
1. through the diameter difference of each fixed disc, each disc passes through the connection of scalable universal joint for whole device can form the toper space, accords with human mammary gland tissue structure.
2. Through the rotation of fixed medium plate in the space that fixed upper plate and fixed hypoplastron formed, the connected mode of reuse Z shape connection piece makes whole device follow the axial rotation of central axis to prevent scalable universal joint in position and hinder the puncture biopsy to mammary gland tissue.
3. Through the combination of stationary blade, slide and slide bar in the fixed disc, rotate the slide and can realize adjusting the space that mammary gland tissue fixed establishment formed, convenient operation, the flexibility is good, and the slide bar lower part is the square simultaneously, and the upper portion is the cylinder, and one of them side of square sets up the tongue, passes through bolted connection tissue bracket below the slide bar, makes the fixed space of mammary gland of this mammary gland tissue fixed establishment's tissue bracket can form the mammary gland of different diameters to can carry out individualized regulation according to the mammary gland characteristic of different individuals, realized the nimble fixed to the mammary gland tissue, the commonality is strong.
4. The tissue support material in the tissue support is rubber, so that a patient feels comfortable in the clamping process.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1: the general structure of the invention is schematically shown;
fig. 2: the whole assembly schematic diagram of the prone support and the mammary tissue fixing mechanism is provided;
fig. 3: the invention relates to an explosion diagram of a fixing frame;
fig. 4: the structure and the connection mode of the fixed sliding plate I are schematically shown;
fig. 5: the structure and the connection mode of the fixed sliding plate II are schematically shown;
fig. 6: the structure and the connection mode of the fixed slide III are schematically shown;
fig. 7: the telescopic universal coupler is structurally schematic;
fig. 8: the sliding rod structure of the invention is schematically shown;
fig. 9: the structure of the tissue bracket is schematically shown;
in the figure: 1. the fixing frame, the 1-1 fixing upper plate, the 1-1 locating hole I, the 1-2 fixing middle plate, the 1-2-1 notch, the 1-3 fixing lower plate, the 1-3-1 locating hole II, the 1-4Z connecting piece, the 2 fixing disc I, the 2-1 sliding piece I, the 2-1 rhombic notch I, the 2-2 fixing piece I, the 2-2-1 square notch I, the 2-2 groove slideway I, the 2-2-3 round hole I, the 3 fixing disc II, the 3-1 sliding piece II, the 3-1-1 rhombic notch II, the 3-1-2 oblique cylindrical notch, the 3-2 fixing piece II 3-2-1 straight square notch II, 3-2-2 groove slide II, 3-2-3 round hole II, 4 fixed disk III, 4-1 slide III, 4-1-1 rhombic notch III, 4-2 fixed disk III, 4-2-1 straight square notch III, 4-2-2 groove slide III, 4-2-3 round hole III, 5-1 joint, 5-2 cross, 5-3 telescopic rod, 6 sliding rod, 6-1 convex groove, 6-2 threaded hole, 7-1 bracket, 7-2 bracket, 7-3 through hole, 8 prone bracket, 9 mammary gland tissue.
The specific embodiment is as follows:
for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the specific embodiment of the present invention adopts the following technical scheme, and the present invention includes a fixing frame 1, a fixing disc I2, a fixing disc II3, a fixing disc III4, a telescopic universal coupling 5, a sliding rod 6 and a tissue bracket 7, and is characterized in that: the fixing frame 1 comprises a fixed upper plate 1-1, a fixed middle plate 1-2, a fixed lower plate 1-3 and a Z-shaped connecting sheet 1-4; the fixed disc I2 comprises a sliding piece I2-1 and a fixed piece I2-2, and the sliding piece I2-1 is arranged on the fixed piece I2-2; the fixed disc II3 comprises a sliding piece II 3-1 and a fixed piece II3-2, the sliding piece II 3-1 is arranged on the fixed piece II3-2, and the fixed disc I2 is connected with the fixed disc II3 through a telescopic universal coupling 5; the fixed disc III4 comprises a sliding sheet III 4-1 and a fixed sheet III 4-2, the sliding sheet III 4-1 is arranged below the fixed sheet III 4-2, and the fixed disc II3 is connected with the fixed disc III4 through a telescopic universal coupling 5; the telescopic universal coupler 5 comprises a joint 5-1, a cross shaft 5-2 and a telescopic rod 5-3; the upper part of the sliding rod 6 is cylindrical, the lower part of the sliding rod 6 is square, the convex groove 6-1 is arranged on the side surface of the sliding rod 6, and the threaded hole 6-2 is arranged on the bottom surface of the sliding rod 6; the tissue bracket 7 comprises a tissue bracket 7-1, a tissue bracket 7-2 and two through holes 7-3, wherein the two through holes 7-3 in the tissue bracket 7 are arranged on the tissue bracket 7-1, the two through holes 7-3 in the tissue bracket 7-1 are matched with the two threaded holes 6-2 in the sliding rod 6, and the fixed connection between the sliding rod 6 and the tissue bracket 7 is realized through screws; the fixed upper plate 1-1 comprises a positioning hole I1-1-1, the fixed middle plate 1-2 comprises a notch 1-2-1, and the fixed lower plate 1-3 comprises a positioning hole II 1-3-1; the sliding piece I2-1 comprises three rhombic notch I2-1-1, and the rhombic notch I2-1-1 is uniformly distributed along the circumference of the axle center of the sliding piece I2-1; the fixing piece I2-2 comprises three square notch I2-2-1, three groove slide ways I2-2-2 and three round holes I2-2-3, wherein the square notch I2-2-1, the groove slide ways I2-2-2 and the round holes I2-2-3 are uniformly distributed along the circumference of the axis of the fixing piece I2-2; the sliding plate II 3-1 comprises three rhombic notch II 3-1-1 and three oblique cylindrical notch 3-1-2, wherein the rhombic notch II 3-1-1 and the oblique cylindrical notch 3-1-2 are uniformly distributed along the circumference of the axle center of the sliding plate II 3-1 respectively; the fixing piece II3-2 comprises three square notch II 3-2-1, three groove slide ways II 3-2-2 and three round holes II3-2-3, wherein the square notch II 3-2-1, the groove slide ways II 3-2-2 and the round holes II3-2-3 are uniformly distributed along the circumference of the axis of the fixing piece II 3-2; the sliding sheet III 4-1 comprises three rhombic notch III 4-1-1, and the rhombic notch III 4-1-1 are uniformly distributed along the circumference of the axle center of the sliding sheet III 4-1; the slide way I2-2-2 is matched with the convex groove 6-1 in the slide rod 6, the upper part of the slide rod 6, namely the cylindrical part, is placed in the rhombic notch I2-1-1 in the slide plate I2-1, when the slide plate I2-1 is rotated clockwise, the slide plate I2-1 pushes the slide rod 6 along the radial direction towards the axis, so that the convex groove 6-1 in the slide rod 6 slides towards the axis along the groove slide way I2-2-2 in the fixed plate I2-2, and the circular diameter formed by the tissue bracket can be reduced; when the sliding piece I2-1 is rotated anticlockwise, the sliding piece I2-1 pushes the sliding rod 6 in the opposite axial direction along the radial direction, so that the convex groove 6-1 in the sliding rod 6 slides in the opposite axial direction along the groove slideway I2-2-2 in the fixing piece I2-2, and the circular diameter formed by the tissue brackets can be enlarged; the sliding plate II 3-1 in the fixed disc II3 is connected with the fixed sheet II3-2 through the sliding rod 6, the lower part of the sliding rod 6, namely the square part, is placed in the straight square notch II 3-2-1 in the fixed sheet II3-2, the groove slideway II 3-2-2 is matched with the convex groove 6-1 in the sliding rod 6, the upper part of the sliding rod 6, namely the cylindrical part, is placed in the rhombic notch II 3-1-1 in the sliding plate II 3-1, the tissue bracket 7 is connected below the sliding rod 6, and when the sliding plate II 3-1 is rotated clockwise, the sliding plate II 3-1 pushes the sliding rod 6 along the radial direction of the axis, so that the convex groove 6-1 in the sliding rod 6 slides along the groove slideway II 3-2-2 in the fixed sheet II3-2 towards the axis, and the circular diameter formed by the tissue bracket can be reduced; when the sliding plate II 3-1 is rotated anticlockwise, the sliding plate II 3-1 pushes the sliding rod 6 in the opposite axial direction along the radial direction, so that the convex groove 6-1 in the sliding rod 6 slides in the opposite axial direction along the groove slideway II 3-2-2 in the fixing piece II3-2, and the circular diameter formed by the tissue bracket can be enlarged; the sliding plate III 4-1 in the fixed disc III4 is connected with the fixed plate III 4-2 through the sliding rod 6, the lower part of the sliding rod 6, namely the square part, is placed in the straight square notch III 4-2-1 in the fixed plate III 4-2, the groove slideway III 4-2-2 is matched with the convex groove 6-1 in the sliding rod 6, the upper part of the sliding rod 6, namely the cylindrical part, is placed in the rhombic notch III 4-1-1 in the sliding plate III 4-1, the tissue bracket 7 is connected below the sliding rod 6, and when the sliding plate III 4-1 is rotated clockwise, the sliding plate III 4-1 pushes the sliding rod 6 along the radial direction of the axis, so that the convex groove 6-1 in the sliding rod 6 slides along the groove slideway III 4-2-2 in the fixed plate III 4-2 towards the axis, and the circular diameter formed by the tissue bracket can be reduced; when the slide plate III 4-1 is rotated anticlockwise, the slide plate III 4-1 pushes the slide rod 6 along the radial direction towards the opposite direction of the axis, so that the convex groove 6-1 in the slide rod 6 slides along the groove slideway III 4-2-2 in the fixing piece III 4-2 towards the opposite direction of the axis, and the circular diameter formed by the tissue bracket can be enlarged; the diameter range that three tissue brackets of the fixed disc I2 can form is 100mm-150mm, the diameter range that three tissue brackets of the fixed disc II3 can form is 50mm-100mm, the diameter range that three tissue brackets of the fixed disc III4 can form is 0mm-50mm, the fixed disc I2 and the fixed disc II3 are connected through three telescopic universal couplings 5, two ends of a joint 5-1 in the telescopic universal couplings 5 are respectively matched with three round holes I2-2-3 in the fixed disc I2-2 and three round holes II3-2-3 in the fixed disc II3-2, the diameter of the circle center of the round holes I2-2-3 is 200mm, the diameter of the circle center of the round holes II3-2-3 is 150mm, the diameters of the round holes I2-2-3 and the round holes II3-2-3 are different in diameter, and when the round holes I2-2-3 are matched with the round holes II3-2-3 and the telescopic universal couplings 5, the telescopic universal couplings 5 are inclined at an angle of 30 degrees; the fixed disc II3 is connected with the fixed disc III4 through three telescopic universal couplings 5, two ends of a joint 5-1 in the telescopic universal couplings 5 are respectively matched with three round holes II3-2-3 in the fixed sheet II3-2 and three round holes III 4-2-3 in the fixed sheet III 4-2 in a shaft hole mode, the diameter of the circle center of the round hole II3-2-3 is 150mm, the diameter of the circle center of the round hole III 4-2-3 is 100mm, the round holes II3-2-3 and the round holes III 4-2-3 are in different diameters, and when the round holes II3-2-3 are matched with the round holes III 4-2-3 in the shaft hole of the telescopic universal couplings 5, the telescopic universal couplings 5 incline at an angle of 30 degrees; the fixed disc I2, the fixed disc II3 and the fixed disc III4 are connected with the shaft hole of the telescopic universal coupler 5 in a matched manner, so that the whole device is conical and accords with the shape of human breast tissue 9; the fixed upper plate 1-1 in the fixed frame 1 is connected with the prone support 8 through screws, the notch 1-2-1 on the fixed middle plate 1-2 is connected with the upper end of the Z-shaped connection 1-4) in a matched mode, the lower end of the Z-shaped connection piece 1-4 is connected with the lower surface of the fixed piece I2-2 in a welded mode, the locating hole II 1-3-1 in the fixed lower plate 1-3 is matched with the locating hole I1-1-1 shaft hole in the fixed upper plate 1-1, the fixed middle plate 1-2 can rotate in a space formed by the fixed upper plate 1-1 and the fixed lower plate 1-3, the whole device can rotate axially along the central axis through the Z-shaped connection piece 1-4, and therefore the position of the telescopic universal coupler 5 is prevented from blocking the puncture biopsy on the mammary tissue 9.
The working principle of the specific embodiment is as follows:
before performing a breast biopsy operation, a patient is prone on a prone support which assists in performing a prone position breast biopsy operation in an MRI apparatus, and breast tissue naturally drops from two openings on a support surface; the adjustable range of the length of the six telescopic universal couplings in the mammary tissue fixing mechanism is 25mm-50mm; when all the telescopic universal couplings are telescopic to the shortest state, namely the length of each telescopic universal coupling is 25mm, the whole length of the device is 50mm, the diameter of a tissue bracket formed on a fixed disc I is 150mm, the diameter of a tissue bracket formed on a fixed disc II is 100mm, the diameter of a tissue bracket formed on a fixed disc III is 50mm, namely the tissue space of a fixed mammary gland formed by the tissue brackets on each fixed disc is the largest, the maximum reachable diameters are respectively 150mm, 100mm and 50mm, the length of the telescopic universal coupling 5 is 25mm, and the whole length of the device is a conical space of 50mm, and at the moment, the mammary gland tissue fixing mechanism is in an initial state;
after a patient is prone to a prone operation support, a doctor firstly adjusts the length of the telescopic universal coupler according to the size of breast tissue, so that the breast tissue fixing mechanism can completely cover the breast tissue, secondly sequentially adjusts the diameters formed by three tissue brackets of a fixing disc I in the breast tissue fixing mechanism, the diameter formed by three tissue brackets of a fixing disc II and the diameter formed by three tissue brackets of a fixing disc III, so that the breast tissue fixing mechanism can completely wrap the breast tissue, and the breast tissue fixing mechanism can adapt to the size of the tissue, and the fixation of the breast tissue is completed;
after the operation is finished, the patient leaves the prone support, the telescopic universal coupler is firstly adjusted to be shortened to be shortest, the telescopic universal coupler is restored to an initial state, the diameter formed by the tissue brackets on the fixed disc I is 150mm, the diameter formed by the tissue brackets on the fixed disc II is 100mm, the diameter formed by the tissue brackets on the fixed disc III is 50mm, namely, the fixed breast tissue space formed by the tissue brackets on each fixed disc is maximum, the maximum diameter can be up to 150mm formed by the three tissue brackets on the fixed disc I, the diameter formed by the three tissue brackets on the disc II is 100mm, the diameter formed by the three tissue brackets on the fixed disc III is 50mm, the length of the telescopic universal coupler is 25mm, the total length of the device is 50mm, the conical space is restored to the initial state, and the use of the patient in the next position is convenient.
Claims (2)
1. The rotary shrinkage type mammary gland fixing mechanism for the nuclear magnetic environment comprises a fixing frame (1), a fixing disc I (2), a fixing disc II (3), a fixing disc III (4), a telescopic universal coupling (5), a sliding rod (6) and a tissue bracket (7), and is characterized in that the rotary shrinkage type mammary gland fixing mechanism comprises a fixing disc I, a fixing disc II and a fixing disc III; the fixing frame (1) comprises a fixed upper plate (1-1), a fixed middle plate (1-2), a fixed lower plate (1-3) and a Z-shaped connecting sheet (1-4); the fixed disc I (2) comprises a sliding piece I (2-1) and a fixed piece I (2-2), and the sliding piece I (2-1) is arranged on the fixed piece I (2-2); the fixed disc II (3) comprises a sliding sheet II (3-1) and a fixed sheet II (3-2), the sliding sheet II (3-1) is arranged on the fixed sheet II (3-2), and the fixed disc I (2) is connected with the fixed disc II (3) through a telescopic universal coupling (5); the fixed disc III (4) comprises a sliding sheet III (4-1) and a fixed sheet III (4-2), the sliding sheet III (4-1) is arranged below the fixed sheet III (4-2), and the fixed disc II (3) is connected with the fixed disc III (4) through a telescopic universal coupling (5); the telescopic universal coupler (5) comprises a joint (5-1), a cross shaft (5-2) and a telescopic rod (5-3); the upper part of the sliding rod (6) is cylindrical, the lower part of the sliding rod (6) is square, the convex groove (6-1) is arranged on the side surface of the sliding rod (6), and the threaded hole (6-2) is arranged on the bottom surface of the sliding rod (6); the tissue bracket (7) comprises a tissue bracket (7-1), a tissue support (7-2) and two through holes (7-3), wherein the two through holes (7-3) in the tissue bracket (7) are arranged on the tissue bracket (7-1), the two through holes (7-3) in the tissue bracket (7-1) are matched with the two threaded holes (6-2) in the sliding rod (6), and the sliding rod (6) is fixedly connected with the tissue bracket (7) through screws; the fixed upper plate (1-1) comprises a positioning hole I (1-1-1), the fixed middle plate (1-2) comprises a notch (1-2-1), and the fixed lower plate (1-3) comprises a positioning hole II (1-3-1); the sliding piece I (2-1) comprises three rhombic notch I (2-1-1), and the rhombic notch I (2-1-1) is uniformly distributed along the circumference of the axis of the sliding piece I (2-1); the fixing piece I (2-2) comprises three straight square notch I (2-2-1), three groove slide ways I (2-2-2) and three round holes I (2-2-3), and the straight square notch I (2-2-1), the groove slide ways I (2-2-2) and the round holes I (2-2-3) are uniformly distributed along the circumference of the axis of the fixing piece I (2-2) respectively; the sliding plate II (3-1) comprises three rhombic notch II (3-1-1) and three oblique cylindrical notches (3-1-2), and the rhombic notch II (3-1-1) and the oblique cylindrical notches (3-1-2) are uniformly distributed along the circumference of the axle center of the sliding plate II (3-1); the fixing piece II (3-2) comprises three square notch II (3-2-1), three groove slide ways II (3-2-2) and three round holes II (3-2-3), and the square notch II (3-2-1), the groove slide ways II (3-2-2) and the round holes II (3-2-3) are uniformly distributed along the axis circumference of the fixing piece II (3-2) respectively; the sliding sheet III (4-1) comprises three rhombic notch III (4-1-1), and the rhombic notch III (4-1-1) are uniformly distributed along the circumference of the axis of the sliding sheet III (4-1); the slide way I (2-2-2) is matched with the convex groove (6-1) in the slide rod (6), the upper part, namely the cylindrical part, of the slide rod (6) is placed in the rhombic notch I (2-1-1) in the slide plate I (2-1), when the slide plate I (2-1) is rotated clockwise, the slide plate I (2-1) pushes the slide rod (6) along the radial direction towards the axis, so that the convex groove (6-1) in the slide rod (6) slides towards the axis along the concave groove slide way I (2-2-2) in the fixed plate I (2-2), and the circular diameter formed by the tissue bracket can be reduced; when the sliding piece I (2-1) is rotated anticlockwise, the sliding piece I (2-1) pushes the sliding rod (6) in the opposite direction of the axis along the radial direction, so that the convex groove (6-1) in the sliding rod (6) slides in the opposite direction of the axis along the concave groove slideway I (2-2-2) in the fixing piece I (2-2), and the circular diameter formed by the tissue bracket can be enlarged; the sliding plate II (3-1) in the fixed disc II (3) is connected with the fixed plate II (3-2) through the sliding rod (6), the lower part of the sliding rod (6), namely the square part, is placed in the square notch II (3-2-1) in the fixed plate II (3-2), the groove slideway II (3-2-2) is matched with the convex groove (6-1) in the sliding rod (6), the upper part of the sliding rod (6), namely the cylindrical part, is placed in the square notch II (3-1-1) in the sliding plate II (3-1), the tissue bracket (7) is connected below the sliding rod (6), and when the sliding plate II (3-1) is rotated clockwise, the sliding rod (3-1) pushes the sliding rod (6) in the radial direction towards the axis, so that the convex groove (6-1) in the sliding rod (6) slides towards the axis along the groove slideway II (3-2-2) in the fixed plate II (3-2), and the diameter formed by the tissue bracket can be reduced; when the slide plate II (3-1) is rotated anticlockwise, the slide plate II (3-1) pushes the slide rod (6) in the opposite direction of the axis along the radial direction, so that the convex groove (6-1) in the slide rod (6) slides in the opposite direction of the axis along the groove slide way II (3-2-2) in the fixing piece II (3-2), and the circular diameter formed by the tissue bracket can be enlarged; the sliding plate III (4-1) in the fixed disc III (4) is connected with the fixed plate III (4-2) through the sliding rod (6), the lower part of the sliding rod (6), namely the square part, is placed in the square notch III (4-2-1) in the fixed plate III (4-2), the groove slideway III (4-2-2) is matched with the convex groove (6-1) in the sliding rod (6), the upper part of the sliding rod (6), namely the cylindrical part, is placed in the square notch III (4-1-1) in the sliding plate III (4-1), the tissue bracket (7) is connected below the sliding rod (6), and when the sliding plate III (4-1) is rotated clockwise, the sliding rod III (4-1) pushes the sliding rod (6) along the radial direction of the axis, so that the convex groove (6-1) in the sliding rod (6) slides along the groove slideway III (4-2-2) in the fixed plate III (4-2) towards the axis, and the diameter formed by the tissue bracket can be reduced; when the slide sheet III (4-1) is rotated anticlockwise, the slide sheet III (4-1) pushes the slide rod (6) in the opposite direction of the axis along the radial direction, so that the convex groove (6-1) in the slide rod (6) slides in the opposite direction of the axis along the groove slide way III (4-2-2) in the fixing sheet III (4-2), and the circular diameter formed by the tissue bracket can be enlarged; the diameter range that three tissue brackets of fixed disc I (2) can form is 100mm-150mm, the diameter range that three tissue brackets of fixed disc II (3) can form is 50mm-100mm, the diameter range that three tissue brackets of fixed disc III (4) can form is 0mm-50mm, fixed disc I (2) and fixed disc II (3) are connected through three telescopic universal couplings (5), both ends of joint (5-1) in telescopic universal couplings (5) respectively carry out shaft hole fit with three round holes I (2-2-3) in stationary blade I (2-2) and three round holes II (3-2-3) in stationary blade II (3-2), the diameter that the center of round hole I (2-2-3) is 200mm, the diameter that the center of round hole II (3-2-3) is 150mm, the round hole I (2-2-3) and the round hole II (3-2-3) are on different diameters, when the round hole I (2-2-3) and the telescopic universal couplings (5-3) can form a telescopic universal coupling angle with the telescopic universal couplings (30); the fixed disc II (3) is connected with the fixed disc III (4) through three telescopic universal couplings (5), two ends of a joint (5-1) in the telescopic universal couplings (5) are respectively matched with three round holes II (3-2-3) in the fixed disc II (3-2) and three round holes III (4-2-3) in the fixed disc III (4-2), the diameter of the circle center of the round holes II (3-2-3) is 150mm, the diameter of the circle center of the round holes III (4-2-3) is 100mm, and the round holes II (3-2-3) and the round holes III (4-2-3) are in different diameters, so that the telescopic universal couplings (5) are inclined at an angle of 30 degrees when the round holes II (3-2-3) are matched with the round holes III (4-2-3) and the axial holes of the telescopic universal couplings (5); the fixed disc II (3) and the fixed disc III (4) are connected with the shaft hole of the telescopic universal coupler (5) in a matched way through the fixed disc I (2), so that the whole device is conical and accords with the shape of human mammary tissue (9); the fixed upper plate (1-1) in the fixed frame (1) is connected with the prone support (8) through screws, the notch (1-2-1) on the fixed middle plate (1-2) is connected with the upper end of the Z-shaped connecting piece (1-4) in a matched mode, the lower end of the Z-shaped connecting piece (1-4) is connected with the lower surface of the fixed piece I (2-2) in a welded mode, the locating hole II (1-3-1) in the fixed lower plate (1-3) is matched with the locating hole I (1-1-1) in the fixed upper plate (1-1) in a shaft hole, the fixed middle plate (1-2) can rotate in a space formed by the fixed upper plate (1-1) and the fixed lower plate (1-3), the whole device can rotate axially along the central axis through the Z-shaped connecting piece (1-4), and therefore the position of the telescopic coupler (5) is prevented from blocking the puncture biopsy of mammary tissue (9).
2. A rotary contracting breast immobilization mechanism for a nuclear magnetic environment as defined in claim 1, wherein: when performing a breast biopsy procedure, the patient is prone on a prone support (8) which assists in performing the prone position breast biopsy procedure in the MRI apparatus, and breast tissue (9) naturally sags from two openings in the support surface; the adjustable range of the length of the 6 telescopic universal couplings (5) in the mammary tissue fixing mechanism is 25mm-50mm; when all the telescopic universal couplings (5) are telescopic to the shortest state, namely the length of each telescopic universal coupling (5) is 25mm, the whole length of the device is 50mm, the diameter of the tissue bracket (7) formed on the fixed disc I (2) is 150mm, the diameter of the tissue bracket (7) formed on the fixed disc II (3) is 100mm, the diameter of the tissue bracket (7) formed on the fixed disc III (4) is 50mm, namely the maximum available diameter of the fixed breast tissue space formed by the tissue bracket (7) on each fixed disc is 150mm, 100mm and 50mm, the length of the telescopic universal coupling (5) is 25mm, the whole length of the device is a conical space of 50mm, and the breast tissue fixing mechanism is in the initial state; after a patient is prone to an operation prone support (8), a doctor firstly adjusts the length of the telescopic universal coupler (5) according to the size of breast tissue (9) so that the breast tissue fixing mechanism can completely cover the breast tissue (9), and secondly sequentially adjusts the diameter size formed by three tissue brackets (7) of a fixing disc I (2) in the breast tissue fixing mechanism, the diameter size formed by three tissue brackets (7) of a fixing disc II (3) and the diameter size formed by three tissue brackets (7) of a fixing disc III (4) in order to ensure that the breast tissue fixing mechanism can completely wrap the breast tissue (9), so that the breast tissue fixing mechanism can adapt to the size of the tissue and fix the breast tissue (9); after the operation is finished, the patient leaves the prone support (8), the telescopic universal couplings (5) are firstly adjusted to be shortened to be the shortest, the initial state is restored, the diameters of the tissue brackets (7) formed on the fixed disc I (2) are adjusted to be 150mm, the diameters of the tissue brackets (7) formed on the fixed disc II (3) are 100mm, the diameters of the tissue brackets (7) formed on the fixed disc III (4) are 50mm, namely, the maximum fixed breast tissue space formed by the tissue brackets (7) on each fixed disc is the maximum, the diameters of the three tissue brackets (7) on the fixed disc I (2) are 150mm, the diameters of the three tissue brackets (7) on the disc II (3) are 100mm, the diameters of the three tissue brackets (7) on the fixed disc III (4) are 50mm, the length of the telescopic universal couplings (5) is 25mm, the total device length is 50mm, the conical space is restored to the initial state, and the next patient can use conveniently.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948230.9A CN109009115B (en) | 2018-08-20 | 2018-08-20 | Rotary shrinkage type mammary gland fixing mechanism for nuclear magnetic environment and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948230.9A CN109009115B (en) | 2018-08-20 | 2018-08-20 | Rotary shrinkage type mammary gland fixing mechanism for nuclear magnetic environment and using method |
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| CN109009115A CN109009115A (en) | 2018-12-18 |
| CN109009115B true CN109009115B (en) | 2023-08-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103976762A (en) * | 2014-05-22 | 2014-08-13 | 中国科学院高能物理研究所 | Full-automatic mammary gland biopsy puncture method and device |
| CN106983525A (en) * | 2017-05-08 | 2017-07-28 | 哈尔滨理工大学 | A kind of compatible comprehensive mammary gland intervention device of nuclear-magnetism |
| CN107468252A (en) * | 2017-09-11 | 2017-12-15 | 哈尔滨理工大学 | A kind of breast biopsy device for being used for prone position in nuclear-magnetism environment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7769426B2 (en) * | 2002-04-23 | 2010-08-03 | Ethicon Endo-Surgery, Inc. | Method for using an MRI compatible biopsy device with detachable probe |
| WO2009146176A1 (en) * | 2008-04-14 | 2009-12-03 | Blake Larson | Device and method for mri-guided breast interventions |
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- 2018-08-20 CN CN201810948230.9A patent/CN109009115B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103976762A (en) * | 2014-05-22 | 2014-08-13 | 中国科学院高能物理研究所 | Full-automatic mammary gland biopsy puncture method and device |
| CN106983525A (en) * | 2017-05-08 | 2017-07-28 | 哈尔滨理工大学 | A kind of compatible comprehensive mammary gland intervention device of nuclear-magnetism |
| CN107468252A (en) * | 2017-09-11 | 2017-12-15 | 哈尔滨理工大学 | A kind of breast biopsy device for being used for prone position in nuclear-magnetism environment |
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