Nuclear magnetic compatible mammary gland minimally invasive interventional operation positioning and navigation device

Abstract

The invention belongs to the technical field of medical instruments, and provides a nuclear magnetic compatible mammary gland minimally invasive interventional operation positioning and navigation device, a moving assembly is arranged on an operating bed, and a puncture mechanism for operation is arranged on the moving assembly; the puncture mechanism comprises a moving shell, a rotating piece is rotationally arranged in the moving shell, a puncture box is arranged in the rotating piece in a sliding mode, and a control assembly for driving the rotating piece to rotate and driving the puncture box to move is arranged on the rotating piece; the control assembly comprises a second gear rotationally arranged in the rotating piece, and the rotating sleeve is used for driving the puncture box to move; the puncture box and the puncture needle are slidably arranged in the rotating part, the puncture box is pushed to move under driving of the third gear, a pathological part can be punctured more slightly and accurately, the second gear drives the rotating part to rotate, and the puncture angle of the puncture needle can be adjusted, so that the puncture angle of the puncture needle is adjusted, and the minimum trauma of an operation is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular is a nuclear magnetic resonance compatible positioning and navigation device for minimally invasive breast interventional surgery. Background Art

[0002] The mammary gland is located between the superficial and deep layers of the subcutaneous superficial fascia. The superficial fascia extends into the mammary tissue to form cord-like lobular septa, one end of which is connected to the pectoralis muscle fascia and the other end is connected to the skin, fixing the mammary gland in the subcutaneous tissue of the chest. The fibrous connective tissue that supports and fixes the position of the breast is called the mammary suspensory ligament or Coopers ligament. The deep layer of the superficial fascia is located on the deep surface of the mammary gland and is connected to the superficial layer of the pectoralis major fascia by loose tissue, called the retromammary space, which can make the breast relatively fixed and have a certain degree of mobility on the chest wall. Sometimes, part of the mammary gland can pass through the loose tissue and penetrate into the superficial layer of the pectoralis major muscle. Therefore, during radical mastectomy for breast cancer, the pectoralis major muscle fascia and muscles should be removed together. The fibrous connective tissue extends into the mammary tissue to form many intervals, so in emergency surgery. In case of mastitis, the abscess cavity is often divided into several parts. These fibrous connective tissues fix the breasts and prevent them from sagging when people stand, so they are called suspensory ligaments of the breasts. When breast cancer occurs, the tumor may invade this ligament and cause it to shrink, so the breast skin is sunken, which is called "dimple sign". The breast glands are composed of 15 to 20 lobes, each of which is divided into several lobules, and each lobule is composed of 10 to 100 alveoli. These alveoli are closely arranged around the small milk ducts, and the openings of the alveoli are connected to the small milk ducts. At present, breast diseases are one of the common diseases in women, and the most common one is breast mass disease. Breast mass disease requires puncture treatment during treatment, and a puncture guide positioning device is required before puncture treatment to accurately locate the depth of puncture, etc.

[0003] In the Chinese patent with publication number CN116269670A, a puncture positioning device for breast surgery is mentioned, including a body, one side of the body is fixedly connected to a first motor, and the top of the body is fixedly connected to a fixed frame. The present invention controls the operation of the first motor, the second motor and the electric push rod, so that the patient's chest moves to the bottom end of the fixed frame, the fixed plate operates to the top of the chest that needs to be punctured, and the positioning pad is close to both sides of the chest, and the position of the patient's chest is positioned and fixed. By rotating the first gear, the puncture head is driven to move downward and puncture into the patient's body. Through the number of turns of the first gear and the role of the scale, the depth of the puncture needle inserted into the body is effectively controlled, and the accuracy of the puncture position positioning is effectively improved. At the same time, the two sides of the chest are fixed, and the puncture position deviation caused by the shaking of the chest is effectively prevented, thereby improving the puncture efficiency and enhancing the puncture effect, avoiding secondary puncture, and improving the accuracy of puncture positioning, which solves the problem of not needing to perform the corresponding puncture depth based on the doctor's own experience.

[0004] However, the angle of the puncture needle in the above invention cannot be adjusted. When the pathology is located deeper in the side of the patient's breast, puncturing from top to bottom will deepen the puncture depth of the patient, causing further damage to the patient, thereby increasing the difficulty of subsequent recovery; and the above invention adjusts the position of the puncture needle and the patient by adjusting the height of the operating table, which requires the whole person to be lifted, requires a lot of power and the accuracy of adjustment is difficult to control, and the patient may be accidentally injured.

[0005] Therefore, those skilled in the art have proposed a MRI-compatible positioning and navigation device for minimally invasive breast interventional surgery to solve the problems raised by the background technology. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a MRI-compatible breast minimally invasive interventional surgery positioning and navigation device to solve the problem that the puncture needle angle cannot be adjusted in the prior art.

[0007] A MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, comprising:

[0008] An operating table, wherein a moving assembly is provided on the operating table, and a puncture mechanism for surgery is provided on the moving assembly;

[0009] The puncture mechanism comprises a moving shell, the moving shell is slidably arranged on the moving assembly, a rotating member is rotatably arranged in the moving shell, a first tooth is arranged on the inner side of the rotating member, a puncture box is slidably arranged in the rotating member, a puncture needle is arranged on one side of the puncture box, the puncture needle passes through a first rotating groove opened on one side of the moving shell, and a control assembly is arranged on the rotating member to drive the rotating member to rotate and the puncture box to move;

[0010] The control component includes a second gear rotatably arranged in the rotating member, the second gear cooperates with the first tooth to drive the rotating member to rotate, a rotating shaft is arranged on one side of the second gear, a rotating sleeve is sleeved on the rotating shaft, the rotating sleeve is used to drive the puncture box to move, and a limiting component for limiting the rotation of the rotating shaft and the rotating sleeve is arranged in the rotating member.

[0011] Preferably, the movable shell is cylindrical, the arc surface of the movable shell is provided with a first rotation groove, a plane on one side of the movable shell is transparent, and the first tooth is arranged on the inner arc surface of the movable shell away from the transparent plane.

[0012] Preferably, the moving component includes a gantry movably arranged on the operating table. The gantry is in a "U" shape. Two fixing blocks are arranged on both sides of the operating table. A second threaded rod is rotatably arranged between the two fixing blocks. The extending part of the gantry is penetrated by the second threaded rod. First sliding grooves are opened on both sides of the gantry. A moving block is arranged in each group of first sliding grooves. A cross bar is detachably arranged between the two moving blocks. A first threaded rod is rotatably arranged in the first sliding groove. The first threaded rod penetrates through the moving block. A threaded hole for the first threaded rod to pass through is opened in the moving block.

[0013] Preferably, a moving groove is opened on the cross bar. A second sliding groove is opened in the moving groove. A first toothed plate is arranged on one side of the moving groove. A limiting plate is arranged on the moving shell. The limiting plate is embedded in the second sliding groove. A rotating rod is arranged on the limiting plate. The rotating rod passes out of the moving groove. A first gear is arranged on the side of the rotating rod. The gear meshes with the first toothed plate.

[0014] Preferably, a cavity is opened in the rotating part. A cushion block is arranged at the bottom of the cavity. The puncture box is slidably arranged on the cushion block. A scale line is engraved on one side of the puncture box. A second toothed plate is arranged on the puncture box. A third gear is arranged on the rotating sleeve close to the second gear. The third gear meshes with the second toothed plate. The second gear passes through a second rotating groove opened on the side of the rotating part and meshes with the first tooth.

[0015] Preferably, a limiting turntable is arranged on the rotating sleeve. A tension spring is sleeved outside the rotating sleeve. One end of the tension spring is connected to the limiting turntable, and the other end is connected to one side of the moving shell.

[0016] Preferably, an inspection window is opened on one side of the rotating part. The scale line corresponds to the inspection window in position.

[0017] Preferably, the limiting component includes a limiting piece. The limiting piece is arranged in the cavity. A convex block is arranged on the limiting piece facing the third gear. A limiting column is arranged on the rotating shaft. The limiting column is located between the second gear and the third gear. A plurality of groups of limiting grooves are opened on one side of the third gear facing the limiting column. In the state where the limiting component restricts the rotation of the rotating shaft and the rotating sleeve, the convex block is embedded in the third gear, and the limiting column is embedded in the limiting groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention slides the puncture box and the puncture needle in the rotating part, and the puncture box is pushed to move under the drive of the third gear, so that the puncture needle can move slightly, so that the pathological part can be punctured more gently and accurately. The second gear drives the rotating part to rotate, so that the puncture angle of the puncture needle can be adjusted, so that the puncture angle of the puncture needle can be adjusted according to the position of the patient's breast pathology, thereby ensuring the minimum trauma of the operation. The puncture distance and puncture angle of the puncture needle are adjusted by a rod, which reduces the difficulty of adjustment.

[0020] 2. The present invention arranges a rotating sleeve for controlling the rotation of the third gear outside the rotating shaft for controlling the second gear. When there is no need to adjust the puncture needle, the third gear is clamped on the limit member through a tension spring, and the limit column is embedded in the limit groove, thereby ensuring that the rotating shaft sleeve and the rotating shaft will not rotate, thereby ensuring that the puncture box and the puncture needle can be stabilized after adjustment, and ensuring the smooth progress of subsequent operations.

[0021] 3. The present invention arranges the movable shell on the movable assembly so that the puncture box and the puncture needle can be adjusted to the approximate position of the breast pathology according to the patient's body shape, without manually inserting the puncture needle into the patient's breast, thus avoiding unnecessary harm to the patient caused by the doctor's hand tremor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of;

[0024] Figure 3 It is a schematic diagram of the structure of the mobile shell of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the rotating part of the present invention;

[0026] Figure 5 For the present invention Figure 4 Rear view structure diagram;

[0027] Figure 6 For the present invention Figure 4 Another perspective structural diagram;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the cross bar of the present invention;

[0029] Figure 8 For the present invention Figure 4 Schematic diagram of the B amplification structure;

[0030] Fig. 9 For the present invention Figure 6Schematic diagram of the enlarged C structure.

[0031] In the figure:

[0032] 1. operating table; 2. gantry; 3. first slide; 4. cross bar; 41. first tooth plate; 42. second slide; 5. moving block; 6. first threaded rod; 7. second threaded rod; 8. fixed block; 9. puncture box; 10. puncture needle; 11. moving shell; 12. first turntable; 13. moving slot; 14. second turntable; 15. rotating sleeve; 16. inspection window; 17. rotating member; 18. first rotating slot; 19. limiting plate; 20. first gear; 21. rotating rod; 22. first tooth; 23. pad; 24. cavity; 25. second gear; 26. limiting member; 27. third gear; 28. tension spring; 29. ​​rotating shaft; 30. limiting turntable; 31. second tooth plate; 32. graduation line; 33. second rotating slot; 34. limiting column; 35. limiting slot. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] As attached Figure 1 To Attachment Figure 6 As shown:

[0035] Embodiment 1: The present invention provides a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, comprising:

[0036] An operating table 1, on which a moving assembly is provided, and on which a puncture mechanism for surgery is provided;

[0037] The puncture mechanism includes a moving shell 11, which is slidably arranged on a moving assembly, a rotating member 17 is rotatably arranged in the moving shell 11, a first tooth 22 is arranged on the inner side of the rotating member 17, a puncture box 9 is slidably arranged in the rotating member 17, a puncture needle 10 is arranged on one side of the puncture box 9, and the puncture needle 10 passes through a first rotating groove 18 opened on one side of the moving shell 11, and a control component is arranged on the rotating member 17 to drive the rotating member 17 to rotate and the puncture box 9 to move;

[0038] To further explain, the puncture needle 10 is a breast rotation puncture needle, and a rotation removal structure is arranged inside. It is a prior art and will not be described in detail here.

[0039] The control component includes a second gear 25 rotatably arranged in the rotating member 17. The second gear 25 cooperates with the first tooth 22 to drive the rotating member 17 to rotate. A rotating shaft 29 is arranged on one side of the second gear 25. A rotating sleeve 15 is sleeved on the rotating shaft 29. The rotating sleeve 15 and the rotating shaft 29 rotate with each other. The rotating sleeve 15 is used to drive the puncture box 9 to move. A limiting component for limiting the rotation of the rotating shaft 29 and the rotating sleeve 15 is arranged in the rotating member 17.

[0040] As attached Figure 2 and attached Figure 3 As shown, the movable shell 11 is cylindrical, the curved surface of the movable shell 11 is provided with a first rotating groove 18, one side plane of the movable shell 11 is transparent, the first tooth 11 is arranged on the curved surface inside the movable shell 11 away from the transparent plane, the first tooth 22 is located on the curved side surface, and is arranged side by side along the curved side surface, and the first tooth 22 is located away from the transparent plane.

[0041] As attached Figure 4 -Attached Figure 6 As shown, a cavity 24 is provided in the rotating member 17, a pad 23 is provided at the bottom of the cavity 24, the puncture box 9 is slidably provided on the pad 23, a groove for the movement of the puncture box 9 is provided on the pad 23, and a scale line 32 is engraved on one side of the puncture box 9. During the movement of the puncture box 9, the puncture distance can be grasped according to the scale line 32, so as to better ensure the accuracy of the puncture depth, a second tooth plate 31 is provided on the puncture box 9, and a third gear 27 is provided on the rotating sleeve 15 near the second gear 25. The third gear 27 is meshed with the second tooth plate 31, and the second gear 25 passes through the second rotating groove 33 provided on the side of the rotating member 17 and meshes with the first tooth 22.

[0042] As attached Figure 4 As shown, a limit turntable 30 is provided on the rotating sleeve 15, and the limit turntable 30 can facilitate the rotation of the rotating sleeve 15. A tension spring 28 is provided on the outer sleeve of the rotating sleeve 15, and one end of the tension spring 28 is connected to the limit turntable 30, and the other end is connected to one side of the movable shell 11. After the puncture box 9 and the puncture needle 10 need to be fixed, the tension spring 28 pulls the rotating sleeve 15 back and cooperates with the limit assembly to limit it.

[0043] As attached Figure 2 As shown, the rotating member 17 has an inspection window 16 on one side, and the scale line 32 corresponds to the inspection window 16. The scale line 32 can be more conveniently observed through the inspection window 16.

[0044] As can be seen from the above, first the staff needs to adjust the position of the puncture needle 10 according to the position of the patient's breast pathology. Specifically, first pull the limit dial 30 to engage the third gear 27 with the second tooth plate 31. At this time, rotate the rotating shaft 29 to drive the second gear 25 to rotate, thereby cooperating with the first tooth 22 engaged with the second gear 25 to realize the rotation of the rotating member 17. After the angle is adjusted, the puncture box 9 can be moved to move the puncture needle 10, and then rotate the limit dial 30 to drive the second tooth plate 31 engaged with the third gear 27 to move, so as to realize the movement of the puncture box 9 and the movement of the puncture needle 10. By observing the scale line 32, the patient's pathological site can be accurately reached. When the puncture needle 10 moves to the pathological site of the patient's breast, the limit dial 30 can be loosened.

[0045] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that Figure 4 and attached Figure 8 -Attached Fig. 9 As shown, the limit assembly includes a limit member 26, and the limit member 26 is arranged in the cavity 24. The limit member 26 is provided with a protrusion toward the third gear 27. A limit column 34 is provided on the rotating shaft 29. The limit column 34 is located between the second gear 25 and the third gear 27. The third gear 27 has multiple groups of limit grooves 35 on the side of the limit column 34. When the limit assembly restricts the rotation of the rotating shaft 29 and the rotating sleeve 15, the protrusion is embedded in the third gear 27, and the limit column 34 is embedded in the limit groove 35.

[0046] As can be seen from the above, when the staff inserts the puncture needle 10 into the patient's pathological site, the limit turntable 30 is released, and then under the pulling of the tension spring 28, the third gear 27 is disengaged from the second gear plate 31. At this time, the third gear 27 is stuck with the limit member 26, and the limit column 34 is restricted in the limit groove 35, ensuring that the rotating sleeve 15 and the rotating shaft 29 cannot rotate, thereby limiting the rotation and movement of the rotating member 17 and the puncture box 9.

[0047] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that Figure 1 and attached Figure 7As shown in the figure, the moving component includes a gantry 2 movably arranged on the operating table 1. The gantry 2 is in a "U" shape. Two fixing blocks 8 are arranged on both sides of the operating table. A second threaded rod 7 is rotatably arranged between the two fixing blocks 8. The extending part of the gantry 2 is penetrated by the second threaded rod 7. First chutes 3 are opened on both sides of the gantry 2. A moving block 5 is arranged in each group of the first chutes 3. A cross bar 4 is detachably arranged between the two moving blocks 5. A first threaded rod 6 is rotatably arranged in the first chute 3. The first threaded rod 6 penetrates through the moving block 5. A threaded hole for the first threaded rod 6 to penetrate through is opened in the moving block 5. A moving groove 13 is opened on the cross bar 4. A second chute 42 is opened in the moving groove 13. A first toothed plate 41 is arranged on one side of the moving groove 13. A limiting plate 19 is arranged on the moving shell 11. The limiting plate 19 is embedded in the second chute 42. A rotating rod 21 is arranged on the limiting plate 19. The rotating rod 21 penetrates out of the moving groove 13. A first gear 20 is arranged on the side of the rotating rod 21. The gear 20 meshes with the first toothed plate 41.

[0048] As can be seen from the above, when the staff places the patient on the operating table 1, the position of the puncture needle 10 is adjusted according to the patient's body size. Specifically, rotate the second threaded rod 7 to move the gantry 2, and then rotate the first threaded rod 6 to adjust the up and down position of the puncture needle 10. Then rotate the first turntable 12 to make the first gear 20 rotate. With the cooperation of the first toothed plate 41 and the first gear 20, the left and right movement of the puncture needle 10 is adjusted until it is adjusted to a reasonable position.

[0049] The embodiments of the present invention are given for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A MRI-compatible positioning and navigation device for minimally invasive breast interventional surgery, characterized in that: Comprising: An operating table (1), a moving component is arranged on the operating table (1), and a puncture mechanism for surgery is arranged on the moving component; The puncture mechanism includes a moving shell (11), the moving shell (11) is slidably arranged on the moving component, a rotating member (17) is rotatably arranged in the moving shell (11), a first tooth (22) is arranged on the inner side surface of the rotating member (17), a puncture box (9) is slidably arranged in the rotating member (17), a puncture needle (10) is arranged on one side of the puncture box (9), and the puncture needle (10) passes through a first rotating groove (18) opened on one side of the moving shell (11); a control component for driving the rotation of the rotating member (17) and the movement of the puncture box (9) is arranged on the rotating member (17); The control component includes a second gear (25) rotatably arranged in the rotating member (17), the second gear (25) is engaged with the first tooth (22) for driving the rotation of the rotating member (17), a rotating shaft (29) is arranged on one side of the second gear (25), a rotating sleeve (15) is sleeved on the rotating shaft (29), the rotating sleeve (15) is used for driving the movement of the puncture box (9), and a limiting component for restricting the rotation of the rotating shaft (29) and the rotating sleeve (15) is arranged in the rotating member (17).

2. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: The moving shell (11) is cylindrical, a first rotating groove (18) is opened on the arc surface of the moving shell (11), one side plane of the moving shell (11) is transparent, and the first tooth (11) is arranged on the arc surface inside the moving shell (11) away from the transparent plane.

3. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: The moving component includes a gantry (2) movably arranged on the operating table (1), the gantry (2) is in a "U" shape, two fixing blocks (8) are arranged on both sides of the operating table, a second threaded rod (7) is rotatably arranged between the two fixing blocks (8), the extending part of the gantry (2) is penetrated by the second threaded rod (7), first sliding grooves (3) are opened on both sides of the gantry (2), a moving block (5) is arranged in each group of first sliding grooves (3), a cross bar (4) is detachably arranged between the two moving blocks (5), a first threaded rod (6) is rotatably arranged in the first sliding groove (3), the first threaded rod (6) passes through the moving block (5), and a threaded hole for the first threaded rod (6) to pass through is opened in the moving block (5).

4. According to claim 3, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: A moving groove (13) is opened on the cross bar (4), a second sliding groove (42) is opened in the moving groove (13), a first toothed plate (41) is arranged on one side of the moving groove (13), a limiting plate (19) is arranged on the moving shell (11), the limiting plate (19) is embedded in the second sliding groove (42), a rotating rod (21) is arranged on the limiting plate (19), the rotating rod (21) passes through the moving groove (13), and a first gear (20) is arranged on the side surface of the rotating rod (21), and the gear (20) is engaged with the first toothed plate (41).

5. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: A cavity (24) is provided in the rotating member (17), a cushion block (23) is provided at the bottom of the cavity (24), the puncture box (9) is slidably provided on the cushion block (23), a scale line (32) is engraved on one side of the puncture box (9), a second tooth plate (31) is provided on the puncture box (9), a third gear (27) is provided on the rotating sleeve (15) on the side close to the second gear (25), the third gear (27) is meshed with the second gear plate (31), and the second gear (25) passes through a second rotating groove (33) provided on the side of the rotating member (17) and is meshed with the first tooth (22).

6. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: A limit rotating disk (30) is arranged on the rotating sleeve (15), and a tension spring (28) is arranged on the outer sleeve of the rotating sleeve (15). One end of the tension spring (28) is connected to the limit rotating disk (30), and the other end is connected to one side of the moving shell (11).

7. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: An inspection window (16) is provided on one side of the rotating member (17), and the scale line (32) corresponds to the position of the inspection window (16).

8. According to claim 1, a MRI-compatible positioning and navigation device for minimally invasive breast intervention surgery, characterized in that: The limiting assembly comprises a limiting member (26), the limiting member (26) is arranged in the cavity (24), a protrusion is arranged on the limiting member (26) facing the third gear (27), a limiting column (34) is arranged on the rotating shaft (29), the limiting column (34) is located between the second gear (25) and the third gear (27), and a plurality of groups of limiting grooves (35) are provided on one side of the third gear (27) facing the limiting column (34), and when the limiting assembly limits the rotation of the rotating shaft (29) and the rotating sleeve (15), the protrusion is embedded in the third gear (27), and the limiting column (34) is embedded in the limiting groove (35).

Images