Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a magnetic compatible breast fixing device for use in a supine breast interventional procedure, which is used for solving the problem that the prior art breast fixing device is used for prone position of a patient and cannot be applied to supine position.
In order to achieve the above and other related objects, the present invention provides a magnetic compatible breast fixing device used in a supine breast interventional operation, comprising a fixing plate and a moving plate, wherein the moving plate is provided with a plurality of rows of puncture holes, and the fixing plate is provided with mounting holes for positioning and mounting the breast fixing device; the two ends of the movable plate are respectively provided with a guide shaft, the fixed plate is arranged on the guide shafts in a penetrating way, and the guide shafts are provided with positioning components which limit the fixed plate or release the fixed plate to slide along the guide shafts, so that the relative distance between the fixed plate and the movable plate is adjusted through the positioning components.
Preferably, the puncture hole is a conical hole, and a tip of the conical hole faces the fixing plate.
Preferably, a row of round holes are arranged between the adjacent rows of conical holes, and the round holes and the conical holes are arranged in a staggered manner.
Preferably, the positioning assembly comprises a positioning rod arranged on the fixed plate and parallel to the fixed plate, and a driving piece for driving the positioning rod to approach or separate from the guide shaft; the outer peripheral surface of the guide shaft is provided with a row of clamping grooves distributed along the axis of the guide shaft, and the front end of the positioning rod is provided with an insertion part inserted into the clamping grooves.
Preferably, the driving piece comprises a pull rod and a guide cylinder arranged on the fixing plate, the positioning rod is arranged in the guide cylinder in a penetrating mode, a limiting spring limiting the guide cylinder is arranged on the positioning rod in a penetrating mode, the pull rod is connected with the positioning rod, the limiting spring limits the insertion portion of the positioning rod to be inserted into the clamping groove of the guide shaft, and the positioning rod is driven to withdraw from the clamping groove when the pull rod is pulled.
Preferably, the fixing plate is provided with a guide sleeve for the guide shaft to pass through.
As described above, the magnetic compatible breast fixing device used in the supine breast interventional operation of the present invention has the following beneficial effects: the movable plate and the fixed plate with adjustable relative distance are adopted, so that the breast of a patient in the supine position can be clamped and positioned, and the movable plate is provided with the puncture hole, thereby facilitating puncture treatment.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 6. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
The invention provides a magnetic compatible mammary gland fixing device used in supine mammary gland interventional operation, as shown in figure 1, the mammary gland fixing device comprises a fixed plate 8 and a movable plate 1, a plurality of rows of puncture holes 11 (shown in figure 2) are arranged on the movable plate 1, and a mounting hole 81 for positioning and mounting the mammary gland fixing device is arranged on the fixed plate 8; both ends of the movable plate 1 are provided with guide shafts 2, the fixed plate 8 is arranged on the guide shafts 2 in a penetrating way, the guide shafts 2 are provided with positioning components which limit the fixed plate 8 or release the fixed plate 8 to slide along the guide shafts 2, and the relative distance between the fixed plate 8 and the movable plate 1 is adjusted through the positioning components. The distance between the fixed plate 8 and the movable plate 1 is adjustable, the distance between the movable plate 1 and the fixed plate 8 is adjusted by adopting the positioning component, the fixed plate 8 can be locked, the distance between the fixed plate 8 and the movable plate 1 can be kept fixed, the breast of a patient in the supine position can be clamped and positioned, and the movable plate is provided with the puncture hole, so that puncture treatment is facilitated.
As shown in fig. 2, the center of the moving plate in this embodiment has 5 rows and 8 columns of the piercing holes with the same size and same pitch. In this embodiment, the puncture hole 11 is a conical hole, the tip of the conical hole faces the fixing plate, the large aperture end of the conical hole faces the outer side, that is, the tip of the conical hole faces the breast, that is, the large aperture end of the conical hole faces the doctor side, in this embodiment, the puncture needle is used for penetrating through the puncture needle to perform interventional operation, and the conical hole enables the angle space of the puncture needle to be larger.
In this embodiment, a row of round holes 12 are disposed between the adjacent rows of conical holes, and the round holes 12 and the conical holes are staggered, so that the round holes can be used as complementary piercing holes, and the round holes 12 are used for making up piercing areas which cannot be covered by the conical holes.
For better adjusting the distance between the fixed plate 8 and the movable plate 1, as shown in fig. 1, the positioning assembly in this embodiment includes a positioning rod 3 disposed on the fixed plate 8 and parallel to the fixed plate, and a driving member for driving the positioning rod 3 to approach or separate from the guide shaft 2; the outer circumferential surface of the guide shaft 2 is provided with a row of clamping grooves 21 (see fig. 3) distributed along the axis of the guide shaft, in this embodiment, a row of inverted tooth-shaped clamping grooves are formed on the outer circumferential surface of the guide shaft, and the front end of the positioning rod 3 is provided with an insertion portion 31 inserted into the clamping grooves 21, and the insertion portion 31 of this embodiment shown in fig. 5 is wedge-shaped. In the embodiment, the driving piece drives the positioning rod to move, so that the positioning rod 3 moves towards the guide shaft 2, the positioning rod 3 is inserted into the clamping groove 21 of the guide shaft 2, and the positioning connection between the fixed plate 8 and the guide shaft 2 is realized, so that the distance between the fixed plate 8 and the movable plate 1 is kept unchanged; the distance between the fixed plate 8 and the movable plate 1 can be adjusted by moving the positioning rod 3 away from the guide shaft 2, i.e. releasing the positioning connection of the guide shaft and the fixed plate.
In order to facilitate the operator to adjust the distance between the fixed plate 8 and the moving plate 1, in this embodiment, the driving member includes a pull rod 4 and a guide cylinder 7 fixed on the fixed plate 8, as shown in fig. 4, the guide cylinder 7 has a through hole 71, the positioning rod 3 is inserted into the through hole 71 of the guide cylinder, and a limiting spring (not shown) limited in the guide cylinder 7 is inserted into the positioning rod 3, the pull rod 4 is connected with the positioning rod 3, the limiting spring limits the insertion portion 31 of the positioning rod 3 to be inserted into the clamping groove 21 of the guide shaft 2, and when the pull rod 4 is pulled, the positioning rod 3 is driven to withdraw from the clamping groove 21. The driving of the positioning rod is achieved by the aid of the pull rod 4, the guide cylinder and the limiting spring, when the pull rod 4 is not subjected to external force, the limiting spring keeps the positioning rod 3 inserted into the clamping groove 21 of the guide shaft, and when the pull rod is subjected to external force, the elastic force of the limiting spring is overcome, and the positioning rod is pulled out to enable the fixing plate to freely slide along the guide shaft. In this embodiment, the clamping groove on the guide shaft is realized by processing saw teeth on the outer peripheral surface of the guide shaft.
The positioning assembly is not limited to the positioning rod and other structures, and can be of other structures, and the positioning assembly can only connect the guide shaft with the fixed plate in a positioning way, and can connect and disconnect the guide shaft and the fixed plate when needed, so that the fixed plate can axially slide along the guide shaft.
In this embodiment, two mounting holes 13 are respectively formed at two ends of the moving plate 1, two guide shafts 2 are respectively arranged in one mounting hole in a penetrating manner, and external threads are formed at the end parts of the guide shafts 2, so that the guide shafts 2 and the moving plate 1 can be fixedly connected through bolts. In order to realize the synchronous release of the limit of the two guide shafts and the locating rod, in the embodiment, the pull rod 4 is a long rod, one end of the pull rod is connected with the locating rod 3 at one end of the fixing plate, the other end of the pull rod is connected with the locating rod 3 at the other end of the fixing plate, and the two locating rods can be simultaneously adjusted by pulling the pull rod.
In order to make the above-mentioned fixed plate slide smoothly and better relative to the guide shaft, in this embodiment, the fixed plate 8 is provided with a guide sleeve 5 for the guide shaft 2 to pass through, and the guide sleeve 5 and the fixed plate can be connected and fixed by a screw. In order to facilitate the positioning rod to pass through the guide sleeve and be matched with the guide shaft, as shown in fig. 5, a notch 51 for the positioning rod to pass through is arranged on the guide sleeve in the embodiment.
By adopting the magnetic compatible breast fixing device used in the supine type breast interventional operation, a patient is in a supine position, the fixing plate 8 is connected with the fixing frame, breasts with different sizes are fixed by adjusting the distance between the moving plate 1 and the fixing plate 8, the moving plate 1 can freely move towards the direction of the fixing plate 8 through the guide shaft 2, but when the moving plate moves in the opposite direction, the positioning rod 3 is clamped in the clamping groove 21 on the guide shaft 2, and the moving plate 1 is limited to move in the opposite direction, so that the breasts are fixed; placing the surface coil or the special breast coil on the surface of the breast fixing device or fixing the surface coil or the special breast coil on two sides of the breast fixing device, and performing magnetic resonance scanning of the breast; after the scanning is finished, the focus and the puncture path are determined by combining the optical navigation system, a proper puncture hole is selected, the focus is punctured, and if the multi-needle puncture is needed, the puncture needle can puncture from different puncture holes by combining the optical navigation planning path. After the use is completed, the puncture instrument is taken down, then the distance between the movable plate 1 and the fixed plate 8 is increased to loosen the mammary gland, the pull rod 4 is only required to be lifted slightly, the positioning rod 3 is lifted, the inserting part 31 of the positioning rod 3 is separated from the clamping groove 21 of the guide shaft, the guide shaft 2 is not locked in one direction any more, and the movable plate 1 can slide easily to loosen the mammary gland.
In order to better fix the special breast coil, the fixing plate is further provided with a fixing connecting piece 6, in this embodiment, the fixing connecting piece 6 is a protruding cube connected to the fixing plate, the protruding thickness exceeds the thickness of the guide cylinder 7, the special breast coil is hung, and then the special breast coil is fixed through sticking a magic tape.
In summary, the magnetic compatible breast fixing device used in the supine breast interventional operation has the following characteristics: 1) The materials adopted by the invention are all made of non-magnetic materials and are compatible with magnetic resonance; 2) The breast fixing device is used for the breast swelling, fixing and loosening of the supine position of a patient on a magnetic resonance imaging instrument, and compared with the interventional operation of the prone position of the patient, the breast fixing device greatly improves the comfort level of the patient during the breast interventional operation and the convenience of the doctor in the interventional operation; 3) The insertion part of the positioning rod is clamped in the clamping groove of the guide shaft, the inverted tooth-shaped clamping groove is adopted, the movement of the moving plate can be locked in one direction, the mammary gland is fixed, and the positioning rod can be easily lifted by the pressing rod to be separated from the clamping groove of the guide shaft, so that the moving plate can freely slide, and the mammary gland can be easily loosened; 4) The moving plate is provided with conical puncture holes which are arranged at equal intervals and complementary circular holes (used for supplementing the puncture Kong Shouxian positions to a certain extent, supplementing uncovered areas of the puncture holes, and the puncture needle performs puncture intervention through the puncture holes or the complementary circular holes and can reduce puncture errors in cooperation with optical navigation; 5) The invention can be matched with a surface coil marked on a magnetic resonance imaging instrument for use, and a special mammary gland coil is not required to be additionally arranged on the magnetic resonance imaging instrument, so that on one hand, the cost can be saved, and on the other hand, the mammary gland interventional operation can be performed on the conventional magnetic resonance. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.