A CT puncture locator for tumor treatment

Abstract

The present invention relates to the field of medical devices and provides a CT puncture locator for tumor treatment. It includes connecting columns, connecting plates are connected between the connecting columns, and the connecting columns are connected to the adjustment bracket through the connecting columns. The bottom of the connecting column is connected and fixed with a support ring, and multiple groups of moving blocks are slidably connected to the support ring; the moving block is rotatably connected to a guide sleeve, and the treatment needle for puncture is inserted into the guide sleeve, and a micromotor II is connected to one side of the guide sleeve. A micromotor I is fixed in the middle of the connecting plate, and the micromotor I drives the rotating plate to rotate. During the rotation of the rotating plate, the moving block can be driven to move on the support ring. The beneficial effects of the present invention are: it has multiple groups of guide sleeves to guide and fix the treatment needle, and the adjustment bracket for adjusting the position of the locator can move in three dimensions, and the locator can be quickly moved above the lesion area. At the same time, the adjustment bracket has a simple structure and will not block the surgical field of view.

Description

Technical Field

[0001] The present invention relates to the field of tumor treatment equipment, specifically advanced treatment equipment and services in the biomedical engineering industry. It also relates to the fields of medical imaging equipment and services, as well as medical examination and testing instruments. Specifically, it relates to a CT puncture locator for tumor treatment. Background Art

[0002] The purpose of tumor puncture is to clarify the pathological diagnosis of the tumor and guide subsequent anti-tumor treatment. The method of tumor puncture is different depending on the location of the tumor. For example, for superficial tumors, such as skin tumors or breast tumors, puncture can be performed directly in the outpatient operating room or dressing room. For tumors in the liver, lungs, abdomen or pelvis, a puncture biopsy is required under CT guidance. Generally, a CT scan is required first to determine the location of the tumor, understand the depth and angle of the needle, and then perform a puncture biopsy on the tumor. For tumors that are deeper, closely related to surrounding organs, and closely related to blood vessels, bile ducts, etc., it may be necessary to perform a puncture biopsy under the guidance of color ultrasound. Regardless of the method used, the main purpose is to improve the accuracy of the puncture and reduce the risk of puncture.

[0003] At the same time, the tumor lesion may metastasize and spread, so during clinical treatment, puncture treatment needs to be performed multiple times. However, each puncture treatment will place a heavy burden on the patient. In order to reduce the burden on the body and improve the treatment effect, clinical practice will also choose to perform multiple punctures simultaneously when the lesion has not spread to a small area.

[0004] This also correspondingly increases the difficulty of positioning the treatment needle tube, because the added positioning equipment will affect the surgical field of view and activity space, so there is a great demand clinically for a locator that can position and fix multiple sets of treatment needles at a time. Summary of the Invention

[0005] The purpose of the present invention is to at least partially overcome the defects of the prior art and provide a CT puncture locator for tumor treatment.

[0006] Another object of the present invention is to provide a CT puncture locator for tumor treatment, which can automatically adjust the position of the locator.

[0007] Another object of the present invention is to provide a CT puncture locator for tumor treatment, which can guide and locate multiple groups of treatment needles at one time.

[0008] Another object of the present invention is to provide a CT puncture locator for tumor treatment, which can be used in combination with a CT machine or used alone.

[0009] To achieve the above purpose or one of the purposes, the technical solutions of the present invention are as follows:

[0010] A CT puncture locator for tumor treatment includes connecting columns, connecting plates connected between the connecting columns, connected to an adjustment bracket through the connecting columns, and supported and moved by the adjustment bracket. The bottom of the connecting column is fixedly connected to a support ring, and multiple groups of moving blocks are slidably connected to the support ring.

[0011] The top end of the moving block is connected to a locking piece, and the moving block is fixed to the support ring through the locking piece;

[0012] The moving block is rotatably connected to a guide sleeve, in which a treatment needle for puncture is inserted. One side of the guide sleeve is connected to a micromotor II, and the inclination angle of the guide sleeve is adjusted by the micromotor II.

[0013] A micro motor I is fixed in the middle of the connecting plate, the micro motor I is connected to a rotating shaft, a rotating plate is plugged into the top end of the rotating shaft, and the micro motor I can drive the rotating plate to rotate;

[0014] The other end of the rotating plate is slidably connected to the moving block, and the rotating plate can drive the moving block to move on the supporting ring during rotation.

[0015] Preferably, the adjustment bracket includes a guide rail, with bases connected to the bottoms of both ends of the guide rail, supporting the guide rail via the bases. A slide rail is fixed to the top of the guide rail, a slide plate is slidably connected to the slide rail, an electric telescopic rod is fixed to the top of the slide plate, and a support plate is fixed to the top of the electric telescopic rod. A connecting sleeve is fixed to the top of the support plate, and a connecting rod is fixed by plugging through the connecting sleeve. The other end of the connecting rod is connected to a vertical plate, and a micromotor III is fixed to the outside of the vertical plate. A screw is connected to the micromotor III, and the screw is spirally connected to the connecting column.

[0016] The main function of the adjusting bracket is to quickly move the locator to the vicinity of the lesion. Therefore, the adjusting bracket can also be a manipulator, which is connected to the connecting column through the manipulator.

[0017] Preferably, both ends of the guide rail are spirally connected with screws, and the screws cooperate with the base to fix the guide rail on the CT bed.

[0018] The guide rail can be placed directly beside the CT bed through the base, or it can be fixed to the CT bed through screws.

[0019] Preferably, the guide rails are provided in two sets, front and rear, with two sets of connecting sleeves on each of the front and rear support plates. A pair of slide bars II connects the front and rear uprights, with the top end of the connecting column sliding on these slide bars II. The two sets of connecting sleeves increase the supporting strength of the connecting rods, and the pair of slide bars II prevent the connecting column from flipping during the screw-driven process, reducing mechanical vibration, alleviating surgical pain, and improving positioning accuracy.

[0020] Preferably, slide bars I are vertically fixed on both sides of the top of the slide plate, and the electric telescopic rod drives the support plate to slide on the slide bars I.

[0021] Preferably, a locking bolt is spirally connected to one side of the connecting sleeve, and the connecting rod is fixed by the locking bolt.

[0022] Preferably, the shape of the support ring is one of circular, square, and elliptical. The shape of the support ring is determined by the location of the lesion and the shape of the spread range. Selecting a suitable support ring shape can correspondingly reduce the movement of the guide sleeve and reduce the difficulty of positioning.

[0023] Preferably, the locking piece connected to the top end of the moving block is an electric telescopic rod, which can automatically lock the moving block on the support ring.

[0024] The electric telescopic rod as the locking member can also be a locking bolt, which requires manual locking of the moving block, and the accuracy will not be as high as automatic locking. The locking member can also be other mechanisms that can achieve a fixed connection between the moving block and the support ring.

[0025] Preferably, a connecting rib is provided on the outer side of the moving block, and a connecting groove is opened on the connecting rib. Rotating rods are provided at both ends of the outer side of the guide sleeve. The guide sleeve is supported by the rotating rods and rotates in the connecting groove. The rotating rods at both ends are rotatably connected to the end covers, and the end covers are fixed to the outer side of the connecting rib, and the micromotor II is fixed to the outer side of one end cover.

[0026] Preferably, the rotating plate and the rotating shaft are clearance-fitted, and the rotating plate defines a strip groove. A locking member at the top of the movable block moves within the strip groove, and the rotating plate acts on the locking member to move the movable block. When a movable block needs to be moved, the strip groove of the rotating plate is placed over the movable block. After moving one movable block, the rotating plate is manually removed and placed over the next movable block to be moved.

[0027] The beneficial effects of the present invention are:

[0028] 1. Multiple guide sleeves guide and secure the treatment needle, and the adjustable bracket that adjusts the position of the locator can be moved three-dimensionally, allowing the locator to be quickly moved over the lesion area. The adjustable bracket is also simple in structure and does not obstruct the surgical field of view.

[0029] 2. The locator can select support rings of different shapes according to the distribution and shape characteristics of the lesions, which can reduce the difficulty of positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the partial structure of the CT puncture locator for tumor treatment of the present invention;

[0031] Figure 2 This is a schematic structural diagram of the CT puncture locator for tumor treatment of the present invention;

[0032] Figure 3 This is an enlarged view of detail A of the present invention;

[0033] Figure 4 A schematic structural diagram of a component connecting column of the present invention;

[0034] Figure 5 A schematic structural diagram of a component support ring of the present invention; DETAILED DESCRIPTION

[0035] Below in conjunction with the accompanying drawings, exemplary embodiments of the present invention are described in detail, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may also be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the drawings.

[0036] A CT puncture locator for tumor treatment, its functional modules are as follows Figure 1 As shown, it includes two connecting columns 1 extending in the vertical direction. The two connecting columns have the same structure. A connecting plate 2 is connected between the two connecting columns 1. As an example, a groove is provided in the middle and lower parts of the two connecting columns. The connecting plate 2 is a long strip. The two ends of the connecting plate 2 extend into the groove and cooperate with the groove, and appropriate connection means are used to connect the connecting column 1 and the connecting plate 2. The bottom of the connecting column 1 is fixedly connected to a support ring 8, and a plurality of groups of moving blocks 9 are slidably connected to the support ring 8. Two parallel sliding holes are provided on the end of each connecting column 1 away from the support ring 8, and threaded holes are provided below the two sliding holes for cooperating with the screw rod 27 to be described later. Among them, the end of the connecting column 1 away from the support ring 8 includes a flat portion, two sliding holes are provided on the flat portion, and the threaded holes are provided on the cylindrical body of the connecting column 1.

[0037] The shape of the support ring 8 is one of circular, square, and oval. The shape of the support ring 8 is determined by the location of the lesion and the shape of the spread range. Selecting a suitable shape of the support ring 8 can correspondingly reduce the movement of the guide sleeve 13 and reduce the difficulty of positioning.

[0038] The connecting column 1 is connected to the adjustment bracket, and the connecting column 1 is supported and moved by the adjustment bracket, thereby driving the treatment needle on the support ring 8 to move. Figure 2 shown.

[0039] exist Figure 1 In the embodiment, the number of moving blocks 9 is six, and the moving blocks 9 are blocks, and a sliding hole that cooperates with the support ring 8 is provided in the block, so that the moving blocks 9 can slide along the support ring 8. It should be noted that due to the different shapes of the support ring 8, moving blocks 9 with different sliding hole forms need to be matched. For example, when the support ring 8 is circular, the sliding hole in the moving block 9 should be a sliding hole extending along the arc of the circle; when the support ring 8 is square, the sliding hole in the moving block 9 that cooperates with it is a linear extension. A locking piece 10 is connected to the top of the moving block 9, and the locking piece 10 is used to fix or release the fixing of the moving block 9 and the support ring 8.

[0040] The locking piece 10 connected to the top end of the moving block 9 is an electric telescopic rod, which can automatically lock the moving block 9 on the support ring 8.

[0041] The electric telescopic rod as the locking member 10 can also be a locking bolt, which requires manual locking of the moving block 9, and the accuracy will not be as high as automatic locking. The locking member 10 can also be other mechanisms that can achieve a fixed connection between the moving block 9 and the support ring 8.

[0042] The movable block 9 is rotatably connected to a guide sleeve 13, into which a treatment needle for puncture is inserted. A micromotor II 15 is connected to one side of the guide sleeve 13, and the tilt angle of the guide sleeve 13 is adjusted by the micromotor II 15. The movable block 9 has two connecting ribs 11 extending radially along the support ring 8 on the block body. The vertical extension of the guide sleeve 13 can be accommodated between the two connecting ribs 11. The connecting ribs 11 are provided with connecting grooves 12. Rotating rods are provided at both ends of the outer side of the guide sleeve 13. The guide sleeve 13 is supported by the rotating rods and rotates in the connecting grooves 12. The rotating rods at both ends are rotatably connected to end caps 14, which are fixed to the outer side of the connecting ribs 11. The micromotor II 15 is fixed to the outer side of one end cap 14.

[0043] During use, the moving block 9 and the guide sleeve 13 connected to the moving block 9 can be increased or decreased according to actual needs.

[0044] A micromotor I3 is fixed in the middle of the connecting plate 2. The micromotor I3 is connected to a rotating shaft 4. The rotating shaft 4 is connected to the output shaft of the micromotor I3. The output shaft of the micromotor I3 extends vertically upward through the connecting plate 2. A rotating plate 5 is inserted at the top of the rotating shaft 4. The micromotor I3 can drive the rotating plate 5 to rotate. The rotating plate 5 is a long strip.

[0045] The other end of the rotating plate 5 is slidably connected to the moving block 9 , and the rotating plate 5 can drive the moving block 9 to move on the supporting ring 8 during the rotation process.

[0046] As an example, the vertical upper end of the rotating shaft 4 has a square cross-section, and the rotating plate 5 has a square hole that matches the square cross-section. There is a clearance fit between the rotating plate 5 and the rotating shaft 4, so the rotating plate 5 can be removed from the rotating shaft 4. The rotating plate 5 is provided with a strip groove 6, and the locking piece 10 at the top of the moving block 9 moves in the strip groove 6. The rotating plate 5 moves the moving block 9 by acting on the locking piece 10. When a moving block 9 needs to be moved, the strip groove 6 of the rotating plate 5 is put on the moving block 9. After moving one moving block 9, the rotating plate 5 is manually pulled out and the rotating plate 5 is put on another moving block 9 that needs to be moved. The design of the strip groove 6 allows the rotating plate 5 to adapt to support rings 8 of different shapes, that is, after the support ring 8 is replaced, the rotating plate 5 does not need to be replaced to enable it to be connected to the moving block 9 on the support ring 8.

[0047] Furthermore, the strip groove 6 on the rotating plate 5 can be a concealed groove, that is, the strip groove 6 does not pass through the rotating plate 5. In particular, the strip groove 6 is located on the surface of the rotating plate 5 facing the movable block 9, that is, the strip groove 6 faces downward. In this way, when the rotating plate 5 and the movable block 9 are attached, the locking member 10 is inserted into the strip groove 6 and the locking member 10 abuts against the groove bottom surface of the strip groove 6. The covering and pressing of the groove bottom surface can prevent the locking member 10 from being accidentally locked, ensuring that the movable block 9 is firmly positioned.

[0048] The locator function is connected to the Figure 2 Adjust the bracket as shown for your specific application.

[0049] The adjustment bracket includes two parallel guide rails 16, with bases 17 connected to the bottoms of both ends of the guide rails 16, and the guide rails 16 are supported by the bases 17. A slide rail 19 is fixed to the top of the guide rail 16, and a slide plate 20 is slidably connected to the slide rail 19. An electric telescopic rod 21 is fixed to the top of the slide plate 20. The electric telescopic rod 21 can be extended and retracted in the vertical direction. A support plate 22 is fixed to the top of the electric telescopic rod 21, thereby driving the support plate 22 to rise or fall in the vertical direction. A connecting sleeve 24 is fixed to the top of the support plate 22, and a connecting rod 25 is fixed by plugging through the connecting sleeve 24. The other end of the connecting rod 25 is connected to a vertical plate 26, and a micromotor III 29 is fixed to the outside of the vertical plate 26. The micromotor III 29 is connected to a screw rod 27, and the screw rod 27 is spirally connected to the connecting column 1. The output shaft of the micromotor III 29 is connected to the screw 27, so the micromotor III 29 can drive the screw 27 to rotate. When the rotation of the connecting column 1 is restricted, the rotational motion of the screw 27 will be converted into the translational motion of the connecting column 1. Figure 2 In the embodiment, the number of the connecting sleeves 24 on each supporting plate 22 is two, and correspondingly, the number of the connecting rods 25 on each vertical plate 26 is two.

[0050] The slide rail 19 has a linear groove. A linear protrusion is provided on the side of the slide plate 20 facing the slide rail 19. The linear protrusion is embedded in the linear groove and is movable within the linear groove. The linear groove and linear protrusion allow the slide plate 20 to move along the slide rail 19. In the embodiment shown in the figure, the slide plate 20 can be moved by an operator. To ensure synchronous movement of the slide plates 20 on the two guide rails 16, scale lines are provided on the slide rail 19 to accurately position the two slide plates 20 and synchronize their movement. In an alternative embodiment, the positioner of the present invention can be equipped with a slide plate motor. Each slide plate 20 is equipped with a slide plate motor, which is a stepper motor. The two slide plates 20 can be synchronously moved horizontally under the control of a controller using the actuation force of the two slide plate motors. When equipped with a slide plate motor, the slide plates 20 can be locked by the slide plate motor. When not equipped with a slide plate motor, the slide plates 20 require an additional locking portion to lock to the slide rail 19. The locking method can adopt conventional locking methods in the prior art and will not be described in detail here.

[0051] The main function of the adjusting bracket is to quickly move the positioner to the vicinity of the lesion. Therefore, the adjusting bracket can also be a manipulator, which is connected to the connecting column 1 through the manipulator.

[0052] Both ends of the guide rail 16 are spirally connected with screw rods 18 , and the screw rods 18 cooperate with the base 17 to fix the guide rail 16 on the CT bed.

[0053] The guide rail 16 can be directly placed beside the CT bed via the base 17 , or can be fixed to the CT bed via the screw 18 .

[0054] Among them, the guide rail 16 is provided with two groups, namely Figure 2 The upper first guide rail and the lower second guide rail are each equipped with two sets of connecting sleeves 24 on the front and rear support plates 22. A pair of slide rods II 28 connects between the front and rear uprights 26. The two sliding holes at the top of the connecting column 1 slide on these slide rods II 28. The two sets of connecting sleeves 24 increase the support strength of the connecting rod 25, while the pair of slide rods II 28 prevent the connecting column 1 from flipping while being driven by the screw 27, reducing mechanical vibration, alleviating surgical pain, and improving positioning accuracy. Here, the connecting rod 25 is L-shaped.

[0055] Among them, sliding rods I 23 are vertically fixed on both sides of the top of the slide plate 20, and the electric telescopic rod 21 drives the support plate 22 to slide on the sliding rods I 23.

[0056] A locking bolt 30 is spirally connected to one side of the connecting sleeve 24 , and the connecting rod 25 is fixed by the locking bolt 30 .

[0057] During use, the guide rail 16 is first fixed to the CT bed, and the screw 18 is tightened to clamp the CT bed between the screw 18 and the base 17. Then, the shape and size of the support ring 8 are selected according to the shape of the lesion. In this embodiment, the support ring 8 is circular.

[0058] like Figure 4-5 As shown, the support ring 8 has a connection hole, and the bottom of the connecting column 1 has a separate bottom cover. The support ring 8 is placed on the bottom of the two connecting columns 1, and then the support ring 8 is fixed to the bottom of the connecting column 1 with bolts using the bottom cover.

[0059] At the same time, the support ring 8 in this embodiment is not a closed structure, and is disconnected at one of the connecting holes. The moving blocks 9 are inserted into the support ring 8 through the fracture, and as many moving blocks 9 as needed are inserted from the fracture. The number of support blocks at both ends of the connecting column 1 is determined according to the distribution characteristics of the moving blocks 9 designed in advance, and can be different. The number of moving blocks 9 on both sides of the support ring 8 does not have to be equal and symmetrical. Further preferably, a ruler is provided on the support ring 8 to facilitate the clear position of the moving block 9 on the support ring 8. Such a setting is advantageous. During the puncture treatment under CT guidance, the position of the treatment needle on the circumference of the support ring 8 can be recorded. In the case of multiple treatments, the needle insertion position of the previous treatment can be understood in subsequent treatments.

[0060] The guide sleeve 13 is then connected to the connecting groove 12 of the moving block 9 .

[0061] Then connect the top of the connecting column 1 to the slide bar II 28, and the screw rod 27 is also connected to the connecting column 1, and then connect the two ends of the screw rod 27 and the slide bar II 28 to the vertical plate 26. Then connect the connecting rod 25 to the vertical plate 26.

[0062] Finally, the patient lies down on the CT bed, and the connecting rod 25 is inserted into the connecting sleeve 24 , and the locking bolt 30 is tightened to fix the connecting rod 25 and the connecting sleeve 24 .

[0063] The control lines of micro motor I 3, micro motor II 15, micro motor III 29, electric telescopic rod 21 and slide rail 19 are connected to the control box. Not shown in the figure, it is a control connection method known in the prior art.

[0064] First, by controlling the slide rail 19, the electric telescopic rod 21, and the micromotor III 29, the support ring 8 is quickly moved to the vicinity of the lesion. Then, the micromotor I 3 and micromotor II 15 are controlled to move the positions of the various moving blocks 9 and adjust the tilt angle of the guide sleeve 13. After the angles of the various guide sleeves 13 are adjusted, the treatment needle is inserted into each guide sleeve 13 to begin puncture treatment. The beneficial effects of the present invention are:

[0065] The device features multiple guide sleeves to guide and secure the needles, and a three-dimensional adjustable bracket for adjusting the position of the locator, allowing the locator to be quickly moved over the affected area. The bracket is also simple in structure and does not obstruct the surgical field of view.

[0066] The locator can select support rings of different shapes according to the distribution and shape characteristics of the lesions, which can reduce the difficulty of positioning.

[0067] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes can be made to these embodiments without departing from the principles and spirit of the invention. The scope of application of the present invention is defined by the following claims and their equivalents.

[0068] List of reference numerals:

[0069] 1 connecting column

[0070] 2 connecting plates

[0071] 3 Micromotor I

[0072] 4 reels

[0073] 5 transfer board

[0074] 6 strip slots

[0075] 8 support ring

[0076] 9 moving blocks

[0077] 10 locking piece

[0078] 11 Connecting ribs

[0079] 12 connection slots

[0080] 13 guide sleeve

[0081] 14 end cap

[0082] 15 Micromotor II

[0083] 16 guide rails

[0084] 17 base

[0085] 18 screw

[0086] 19 slide rails

[0087] 20 skateboards

[0088] 21 Electric telescopic rod

[0089] 22 support plate

[0090] 23 Slide Bar I

[0091] 24 connecting sleeve

[0092] 25 connecting rod

[0093] 26 vertical boards

[0094] 27 screw

[0095] 28 Slide II

[0096] 29 Micromotor III

[0097] 30 locking bolts.

Claims

1. A CT puncture locator for tumor treatment, comprising connecting columns (1), connecting plates (2) connected between the connecting columns (1), connected to an adjustment bracket via the connecting columns (1), and supporting and moving the connecting columns (1) via the adjustment bracket, characterized in that: A support ring (8) is fixedly connected to the bottom of the connecting column (1), and a plurality of moving blocks (9) are slidably connected to the support ring (8); The top end of the moving block (9) is connected to a locking piece (10), and the moving block (9) and the supporting ring (8) are fixed by the locking piece (10); The moving block (9) is rotatably connected to a guide sleeve (13), a treatment needle for puncture is inserted into the guide sleeve (13), and a micromotor II (15) is connected to one side of the guide sleeve (13), and the tilt angle of the guide sleeve (13) is adjusted by the micromotor II (15); A micromotor I (3) is fixed in the middle of the connecting plate (2), the micromotor I (3) is connected to a rotating shaft (4), a rotating plate (5) is plugged into the top end of the rotating shaft (4), and the micromotor I (3) can drive the rotating plate (5) to rotate; The other end of the rotating plate (5) is slidably connected to the moving block (9), and the rotating plate (5) can drive the moving block (9) to move on the supporting ring (8) during rotation.

2. The CT puncture locator for tumor treatment according to claim 1, characterized in that: The adjustment bracket comprises a guide rail (16), and the bottoms of both ends of the guide rail (16) are connected to bases (17), and the guide rail (16) is supported by the bases (17); A slide rail (19) is fixed to the top of the guide rail (16), a slide plate (20) is slidably connected to the slide rail (19), an electric telescopic rod (21) is fixed to the top of the slide plate (20), and a support plate (22) is fixed to the top of the electric telescopic rod (21); A connecting sleeve (24) is fixed to the top end of the support plate (22), and a connecting rod (25) is inserted and fixed through the connecting sleeve (24); The other end of the connecting rod (25) is connected to a vertical plate (26), and a micro motor III (29) is fixed on the outside of the vertical plate (26); The micromotor III (29) is connected to a screw rod (27), and the screw rod (27) is spirally connected to the connecting column (1).

3. The CT puncture locator for tumor treatment according to claim 2, characterized in that: Both ends of the guide rail (16) are spirally connected with screw rods (18), and the guide rail (16) is fixed on the CT bed through the cooperation of the screw rods (18) and the base (17).

4. The CT puncture locator for tumor treatment according to claim 2, characterized in that: The guide rail (16) is provided with two groups, front and rear, and the support plates (22) on the front and rear sides are each provided with two groups of connecting sleeves (24); a pair of sliding rods II (28) is connected between the vertical plates (26) on the front and rear sides, and the top end of the connecting column (1) slides on the sliding rods II (28).

5. The CT puncture locator for tumor treatment according to claim 2, characterized in that: Slide rods I (23) are vertically fixed on both sides of the top of the slide plate (20), and the electric telescopic rod (21) drives the support plate (22) to slide on the slide rods I (23).

6. The CT puncture locator for tumor treatment according to claim 2, characterized in that: A locking bolt (30) is screwed onto one side of the connecting sleeve (24), and the connecting rod (25) is fixed by the locking bolt (30).

7. The CT puncture locator for tumor treatment according to claim 1, characterized in that: The shape of the support ring (8) is one of circular, square and elliptical.

8. The CT puncture locator for tumor treatment according to claim 1, characterized in that: The locking piece (10) connected to the top end of the moving block (9) is an electric telescopic rod, which can automatically lock the moving block (9) on the supporting ring (8).

9. The CT puncture locator for tumor treatment according to claim 1, characterized in that: The outer side of the moving block (9) is provided with a connecting rib (11), and the connecting rib (11) is provided with a connecting groove (12). The outer ends of the guide sleeve (13) are provided with rotating rods. The guide sleeve (13) is supported by the rotating rods and rotates in the connecting groove (12). The rotating rods at both ends are rotatably connected to the end covers (14). The end covers (14) are fixed to the outer side of the connecting rib (11), and the outer side of one end cover (14) is fixed with the micro motor II (15).

10. The CT puncture locator for tumor treatment according to claim 1, characterized in that: The rotating plate (5) and the rotating shaft (4) are clearance-fitted, the rotating plate (5) is provided with a strip groove (6), the locking piece (10) at the top end of the moving block (9) moves in the strip groove (6), and the rotating plate (5) moves the moving block (9) by acting on the locking piece (10).

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