Bone tumor operation puncture positioning device accurate in positioning and guiding

Abstract

The invention relates to the technical field of puncture positioning, and discloses a bone tumor surgery puncture positioning device accurate in positioning and guiding, which comprises a torsional resistance adjusting mechanism and a puncture angle positioning mechanism, an annular hollow shell which is fixedly mounted on one side of the central rotating shaft and is filled with a buffer solution, a rotating ball head which is mounted in the center of the annular hollow shell and can rotate, and an annular elastic gas film which has a wrapping type clamping effect on the rotating ball head are arranged in the annular hollow shell. According to the bone tumor surgery puncture positioning device accurate in positioning and guiding, by means of the spherical hinge connection principle, a puncture needle can have the ability of adjusting the puncture angle, meanwhile, the device can adjust the torsion needed when a rotating ball head rotates according to needs, and therefore it is guaranteed that the puncture needle can have the accurate positioning angle, and meanwhile the puncture needle can be accurately positioned and guided. And the torque can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture positioning, and in particular to a puncture positioning device for bone tumor surgery with accurate positioning and guidance. Background Art

[0002] Currently, when performing puncture biopsy in the oncology department, the puncture position and insertion depth of the puncture needle are determined by the medical staff's experience, which can easily lead to puncture errors. Repeated punctures not only cause great pain to patients, but also bring greater labor intensity to medical staff.

[0003] To this end, the Chinese patent publication number "CN210408553U" discloses "A puncture positioning device for bone tumor surgery with accurate positioning guidance", whose main structure includes a pair of fixed seats, both of which are connected to a first telescopic rod; the telescopic end of the first telescopic rod is provided with a first adjustment square shaft, the telescopic ends of the pair of first telescopic rods are connected through the first adjustment square shaft, and the first adjustment square shaft is slidably connected to the second adjustment square shaft; the second telescopic rod is slidably connected to the second adjustment square shaft, and the telescopic end of the second telescopic rod is connected to a micro-adjustment structure; the micro-adjustment structure includes a vertical micro-adjustment structure connected to the telescopic end of the second telescopic rod, the vertical micro-adjustment structure is connected to a horizontal micro-adjustment structure, and the horizontal micro-adjustment structure is connected to a puncture structure. The bone tumor surgery puncture positioning device performs three-dimensional coarse adjustment of the puncture structure through the first telescopic rod, the first adjustment square shaft, the second adjustment square shaft, and the second telescopic rod, and performs three-dimensional micro-adjustment of the puncture structure through the vertical micro-adjustment structure and the horizontal micro-adjustment structure, so as to facilitate puncture by medical staff.

[0004] The inner ball and the outer ball are connected, and when they are working, they cannot perform effective braking effect, and it is easy for the inner ball to rotate, resulting in inaccurate positioning angle. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a bone tumor surgical puncture positioning device with accurate positioning and guidance. By utilizing the ball hinge connection principle, the puncture needle can have the ability to adjust the puncture angle. At the same time, the device can adjust the torque required for the rotating ball head when rotating according to the needs, thereby ensuring that the puncture needle can have a more accurate positioning angle. At the same time, it has an adjustable torque function, which solves the above technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a puncture positioning device for bone tumor surgery with accurate positioning and guidance, comprising a main mounting plate with a No. 1 docking plate provided on one end face, and a torsional resistance adjustment mechanism, wherein a central rotating shaft fixedly connected to the No. 1 docking plate and having a hollow interior is provided inside the main mounting plate, a No. 1 limit plate and a No. 2 limit plate placed inside the central rotating shaft and capable of longitudinal movement, and a coil spring installed between the No. 1 limit plate and the No. 2 limit plate and acting as an elastic force; and a puncture angle positioning mechanism, wherein an annular hollow shell fixedly mounted on one side of the central rotating shaft and filled with a buffer solution is provided inside the main mounting plate, a rotating ball head installed at the center of the annular hollow shell and capable of rotation, and an annular elastic air film that produces a wrapping clamping effect on the rotating ball head.

[0007] Preferably, the torsional resistance adjustment mechanism includes an externally threaded rod and a longitudinally threaded sleeve integrally arranged at one end of the central rotating shaft, one end of the externally threaded rod is provided with a No. 2 docking plate which is an integral structure with it and fixedly mounted at one end of the No. 1 docking plate, the interior of the central rotating shaft is provided with a No. 1 longitudinal component movable cavity, one end of the central rotating shaft is provided with a No. 3 docking plate which is an integral structure with it, the bottom of the central rotating shaft is provided with a No. 1 rod body through-hole which connects the No. 1 longitudinal component movable cavity and the external space, and the central rotating shaft is provided with a No. 1 rod body through-hole which connects the No. 1 longitudinal component movable cavity and the external space, and the central rotating shaft is provided with a No. 2 Two symmetrical longitudinal grooves, the center of the longitudinal threaded sleeve is provided with an internal threaded hole installed on the rod body of the external threaded rod through a threaded structure, the barrel of the longitudinal threaded sleeve is installed in the ring hole of a rotating ring body through a bearing, and the interior of the movable cavity of the No. 1 longitudinal component is provided with a No. 1 limit plate and a No. 2 limit plate that can move longitudinally, and a coil spring in a compressed state is installed between the No. 1 limit plate and the No. 2 limit plate. The side surface of the No. 1 limit plate and the bottom surface of the rotating ring body are linked by an L-shaped connecting rod passing through the longitudinal groove, and one end of the No. 2 limit plate is provided with a rod body fixing groove with an inward concave structure.

[0008] Preferably, the threaded structure includes an internal threaded structure provided in the internal threaded hole and an external threaded structure provided at the shaft of the external threaded rod, and the internal threaded structure matches the external threaded structure.

[0009] Preferably, the width of the transverse rod in the L-shaped connecting rod for sliding along the longitudinal sliding groove is consistent with the width of the longitudinal sliding groove.

[0010] Preferably, the puncture angle positioning mechanism includes a spherical mounting cavity arranged at the center of the annular hollow shell, the annular hollow shell is provided with a rotatable rotating ball head installed inside the spherical mounting cavity, a puncture needle insertion hole for limiting the angle of the puncture needle is provided at the center of the rotating ball head, the annular hollow shell is provided with an annular liquid flow cavity on the periphery of the central area of ​​the spherical mounting cavity, the annular hollow shell is provided with an annular elastic air membrane in a sealed edge-sealed manner at the intersection of the spherical mounting cavity and the annular liquid flow cavity, and the annular hollow shell is provided with an annular elastic air membrane in a sealed edge-sealed manner at the intersection of the spherical mounting cavity and the annular liquid flow cavity. A horizontal component movable chamber is provided on the periphery of the side, and the annular liquid flow chamber and the horizontal component movable chamber are connected by a liquid flow hole. The other end of the horizontal component movable chamber is provided with a No. 2 rod body through-hole, and the annular hollow shell is provided with a No. 4 docking disk fixedly connected to the No. 3 docking disk at one end located at the No. 2 rod body through-hole. A piston plate capable of axial movement along the horizontal component movable chamber is placed in the horizontal component movable chamber, and a horizontal movable rod passing through the No. 2 rod body through-hole and the No. 1 rod body through-hole is fixedly installed on one end of the piston plate, and one end of the horizontal movable rod is fixedly installed inside the rod body fixing groove.

[0011] Preferably, the annular elastic air membrane is an annular structure made of a rubber material with elastic extensibility.

[0012] Preferably, the closed area formed by the piston plate, the horizontal component active cavity, the liquid flow hole, the annular liquid flow cavity and the annular elastic air membrane is filled with a buffer solution.

[0013] Compared with the prior art, the present invention provides a puncture positioning device for bone tumor surgery with accurate positioning guidance, which has the following beneficial effects: By utilizing the ball hinge connection principle, the puncture needle can be equipped with the ability to adjust the puncture angle. At the same time, the device can adjust the torque required for the rotating ball head when rotating according to the needs, thereby ensuring that the puncture needle can have a more accurate positioning angle and at the same time, has the function of adjusting the torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A perspective view of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 is a three-dimensional diagram of the torsional resistance adjustment mechanism of the present invention; Figure 4 is a three-dimensional cross-sectional view of the torsional resistance adjustment mechanism of the present invention; Figure 5 A three-dimensional diagram of the puncture angle positioning mechanism of the present invention; Figure 6 It is a three-dimensional cross-sectional view of the puncture angle positioning mechanism of the present invention.

[0015] Wherein: 1. Main mounting plate; 2. Docking plate No. 1; 3. Torsional resistance adjustment mechanism; 31. Central shaft; 32. Docking plate No. 2; 33. Externally threaded rod; 34. Longitudinal threaded sleeve; 35. Internally threaded hole; 36. Rotating ring; 37. L-shaped connecting rod; 38. Limiting plate No. 1; 39. Limiting plate No. 2; 310. Coil spring; 311. Longitudinal slide; 312. Through hole of rod No. 1; 313. Rod fixing slot; 314 , docking plate No. 3; 315, movable cavity of longitudinal component No. 1; 4, puncture angle positioning mechanism; 41, annular hollow shell; 42, spherical installation cavity; 43, annular liquid flow cavity; 44, annular elastic air film; 45, rotating ball head; 46, puncture needle insertion hole; 47, movable cavity of horizontal component; 48, liquid flow hole; 49, perforation of rod body No. 2; 410, docking plate No. 4; 411, piston plate; 412, horizontal movable rod. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1 and Figure 2 A puncture positioning device for bone tumor surgery with accurate positioning and guidance includes a main mounting plate 1 with a No. 1 docking plate 2 on one end face. The main mounting plate 1 is fixedly connected to a robotic arm or movable arm that can be installed on one side of the bedside through bolts. The robotic arm or movable arm needs to have the functions of both longitudinal movement and horizontal movement.

[0018] For torque adjustment, see Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up a torsional resistance adjustment mechanism 3, which is internally provided with a central rotating shaft 31 fixedly connected to the No. 1 docking plate 2 and having a hollow interior, a No. 1 limit plate 38 and a No. 2 limit plate 39 placed inside the central rotating shaft 31 and capable of longitudinal movement, and a coil spring 310 installed between the No. 1 limit plate 38 and the No. 2 limit plate 39 and acting as an elastic force. When it is necessary to adjust the torsional resistance, the longitudinal threaded sleeve 34 is rotated in a direction. Due to the threaded structure connection, the longitudinal threaded sleeve 34 will drive the No. 1 limit plate 38 to move through the L-shaped connecting rod 37 to change the distance between the No. 1 limit plate 38 and the No. 2 limit plate 39, thereby changing the elastic strength of the coil spring 310 at this time, and then changing the elastic pressure of the coil spring 310 on the No. 2 limit plate 39. This elastic pressure is the torsional resistance required when rotating the ball head 45, thereby having an adjustable torque function.

[0019] For the specific structure of the torsional resistance adjustment mechanism 3, please refer to Figure 3 and Figure 4 , including an externally threaded rod 33 and a longitudinally threaded sleeve 34 integrally arranged at one end of the central rotating shaft 31, one end of the externally threaded rod 33 is provided with a second docking plate 32 which is an integral structure with it and fixedly mounted at one end of the No. 1 docking plate 2, the interior of the central rotating shaft 31 is provided with a No. 1 longitudinal component active cavity 315, one end of the central rotating shaft 31 is provided with a No. 3 docking plate 314 which is an integral structure with it, the bottom of the central rotating shaft 31 is provided with a No. 1 rod body through-hole 312 which connects the No. 1 longitudinal component active cavity 315 and the external space, the central rotating shaft 31 is provided with two symmetrical longitudinal sliding grooves 311 at the circumferential wall thickness of the No. 1 longitudinal component active cavity 315, the center of the longitudinal threaded sleeve 34 is provided with an internally threaded hole 35 which is installed at the rod body of the externally threaded rod 33 through a threaded structure, the longitudinal threaded sleeve 3 The cylinder of 4 is installed in the annular hole of a rotating ring body 36 through a bearing. The interior of the movable cavity 315 of the No. 1 longitudinal component is provided with a No. 1 limit plate 38 and a No. 2 limit plate 39 that can move longitudinally. A coil spring 310 in a compressed state is installed between the No. 1 limit plate 38 and the No. 2 limit plate 39. The side surface of the No. 1 limit plate 38 and the bottom surface of the rotating ring body 36 are linked by an L-shaped connecting rod 37 that passes through the longitudinal slide groove 311. One end of the No. 2 limit plate 39 is provided with a rod fixing groove 313 with an inner concave structure. The thread structure includes an internal thread structure provided in the internal thread hole 35 and an external thread structure provided at the rod body of the external thread rod 33, and the internal thread structure matches the external thread structure. The width of the transverse rod body in the L-shaped connecting rod 37 for sliding along the longitudinal slide groove 311 is consistent with the width of the longitudinal slide groove 311.

[0020] In order to be able to position the puncture angle of the puncture needle, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 , it is necessary to set up a puncture angle positioning mechanism 4, which is internally provided with an annular hollow shell 41 fixedly mounted on one side of the central rotating shaft 31 and filled with buffer, a rotating ball head 45 mounted at the center of the annular hollow shell 41 and capable of rotation, and an annular elastic air film 44 that produces a wrap-type clamping effect on the rotating ball head 45. First, reduce the torsional resistance of the rotating ball head 45, and then insert the puncture needle into the hole 46 to simulate the puncture angle above the patient's puncture site. At this time, the angle of the puncture needle can be continuously adjusted, and the rotating ball head 45 will rotate with the puncture needle inside the annular hollow shell 41. When the puncture angle reaches a suitable position, increase the torsional resistance of the rotating ball head 45 until the rotating ball head 45 remains stable. At this time, the puncture needle can be used to insert into the hole 46 again, and then the puncture needle is inserted into the patient's body along the puncture needle insertion hole 46 for puncture sampling, thereby positioning the puncture angle of the puncture needle.

[0021] For the specific structure of the puncture angle positioning mechanism 4, please refer to Figure 5 and Figure 6 , including a spherical mounting cavity 42 arranged at the center of an annular hollow shell 41, the annular hollow shell 41 is provided with a rotatable rotating ball head 45 installed inside the spherical mounting cavity 42, and a puncture needle insertion hole 46 for limiting the angle of the puncture needle is provided at the center of the rotating ball head 45, the annular hollow shell 41 is provided with an annular liquid flow cavity 43 on the periphery of the central area of ​​the spherical mounting cavity 42, the annular hollow shell 41 is provided with an annular elastic air membrane 44 in a sealed edge-sealed manner at the intersection of the spherical mounting cavity 42 and the annular liquid flow cavity 43, the annular hollow shell 41 is provided with a horizontal component active cavity 47 on the periphery of one side of the annular liquid flow cavity 43, the annular liquid flow cavity 43 and the horizontal component active cavity 47 are connected through a liquid flow hole 48, and the other side of the horizontal component active cavity 47 is connected to the liquid flow hole 48. A No. 2 rod body through-hole 49 is provided at one end, and a No. 4 docking disc 410 fixedly connected to the No. 3 docking disc 314 is provided at one end of the annular hollow shell 41 located at the No. 2 rod body through-hole 49. A piston plate 411 capable of axially moving along the horizontal component movable cavity 47 is placed in the horizontal component movable cavity 47. A horizontal movable rod 412 passing through the No. 2 rod body through-hole 49 and the No. 1 rod body through-hole 312 is fixedly installed at one end of the piston plate 411, and one end of the horizontal movable rod 412 is fixedly installed inside the rod body fixing groove 313. The annular elastic air membrane 44 is an annular structure made of a rubber material with elastic extensibility. The closed area formed by the piston plate 411, the horizontal component movable cavity 47, the liquid flow hole 48, the annular liquid flow cavity 43 and the annular elastic air membrane 44 is filled with a buffer solution.

[0022] During use, the main mounting plate 1 is fixedly connected to a mechanical arm or movable arm that can be mounted on one side of the bedside by bolts. The mechanical arm or movable arm needs to have the functions of longitudinal movement and horizontal movement at the same time. First, reduce the torsional resistance of the rotating ball head 45, and then insert the puncture needle into the hole 46 to simulate the puncture angle above the patient's puncture site. At this time, the angle of the puncture needle can be continuously adjusted, and the rotating ball head 45 will rotate with the puncture needle inside the annular hollow shell 41. When the puncture angle reaches the appropriate orientation, increase the torsional resistance of the rotating ball head 45 until the rotating ball head 45 remains stable. At this time, the puncture needle can be used again to insert into the hole 46, and then the puncture needle is inserted into the patient's body along the puncture needle insertion hole 46 for puncture sampling. In this process, when the torsional resistance needs to be adjusted, the directional rotation The longitudinal threaded sleeve 34, due to the threaded structure connection, will drive the No. 1 limit plate 38 to move through the L-shaped connecting rod 37 to change the distance between the No. 1 limit plate 38 and the No. 2 limit plate 39, thereby changing the elastic strength of the coil spring 310 at this time, and then changing the elastic pressure of the coil spring 310 on the No. 2 limit plate 39. The No. 2 limit plate 39 will drive the piston plate 411 to move, and the piston plate 411 will generate pressure on the buffer at one end thereof. The liquid pressure will be transmitted to the outside of the annular elastic air film 44, so that the annular elastic air film 44 wraps and clamps the rotating ball head 45. The friction force of the annular elastic air film 44 on the rotating ball head 45 forms a torsional resistance. Therefore, the elastic pressure is the torsional resistance required when rotating the rotating ball head 45, thereby having the adjustable torque function.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A puncture positioning device for bone tumor surgery with accurate positioning guidance, comprising a main mounting plate (1) with a first docking plate (2) provided on one end face, characterized in that: Also includes, A torsional resistance adjustment mechanism (3) is provided with a central rotating shaft (31) fixedly connected to the first docking plate (2) and having a hollow interior, a first limiting plate (38) and a second limiting plate (39) disposed inside the central rotating shaft (31) and capable of longitudinal movement, and a coil spring (310) installed between the first limiting plate (38) and the second limiting plate (39) and exerting an elastic force; And a puncture angle positioning mechanism (4), which is provided with an annular hollow shell (41) fixedly mounted on one side of the central rotating shaft (31) and filled with a buffer solution, a rotating ball head (45) mounted at the center of the annular hollow shell (41) and capable of rotating, and an annular elastic air film (44) that produces a wrapping clamping effect on the rotating ball head (45).

2. The device for accurate positioning and guidance of bone tumor surgery according to claim 1, characterized in that: The torsion resistance adjustment mechanism (3) comprises an external threaded rod (33) and a longitudinal threaded sleeve (34) integrally arranged at one end of a central rotating shaft (31); one end of the external threaded rod (33) is provided with a second docking plate (32) integrally arranged therewith and fixedly mounted at one end of a first docking plate (2); a first longitudinal component movable cavity (315) is provided inside the central rotating shaft (31); one end of the central rotating shaft (31) is provided with a third docking plate (314) integrally arranged therewith; a first rod body through-hole (312) communicating with the first longitudinal component movable cavity (315) and the external space is provided at the bottom of the central rotating shaft (31); and two symmetrical longitudinal through-holes (312) are provided at the circumferential wall thickness of the first longitudinal component movable cavity (315). The center of the longitudinal threaded sleeve (34) is provided with an internal threaded hole (35) installed at the rod body of the external threaded rod (33) through a threaded structure. The barrel of the longitudinal threaded sleeve (34) is installed in the ring hole of a rotating ring body (36) through a bearing. A No. 1 limit plate (38) and a No. 2 limit plate (39) capable of longitudinal movement are placed inside the movable cavity (315) of the No. 1 longitudinal component. A coil spring (310) in a compressed state is installed between the No. 1 limit plate (38) and the No. 2 limit plate (39). The side surface of the No. 1 limit plate (38) and the bottom surface of the rotating ring body (36) are linked by an L-shaped connecting rod (37) passing through the longitudinal chute (311). One end of the No. 2 limit plate (39) is provided with a rod body fixing groove (313) with an inner concave structure.

3. The device for accurate positioning and guidance of bone tumor surgery according to claim 2, characterized in that: The thread structure comprises an internal thread structure provided in the internal thread hole (35) and an external thread structure provided at the shaft of the external thread rod (33), and the internal thread structure matches the external thread structure.

4. The device for accurate positioning and guidance of bone tumor surgery according to claim 3, characterized in that: The width of the transverse rod in the L-shaped connecting rod (37) for sliding along the longitudinal sliding groove (311) is consistent with the width of the longitudinal sliding groove (311).

5. The device for accurate positioning and guidance of bone tumor surgery according to claim 4, characterized in that: The puncture angle positioning mechanism (4) includes a spherical mounting cavity (42) arranged at the center of the annular hollow shell (41), the annular hollow shell (41) is provided with a rotatable rotating ball head (45) inside the spherical mounting cavity (42), and a puncture needle insertion hole (46) for limiting the angle of the puncture needle is provided at the center of the rotating ball head (45), the annular hollow shell (41) is provided with an annular liquid flow cavity (43) on the periphery of the middle area of ​​the spherical mounting cavity (42), the annular hollow shell (41) is provided with an annular elastic air membrane (44) at the intersection of the spherical mounting cavity (42) and the annular liquid flow cavity (43), and the annular hollow shell (41) is provided with a horizontal component on the periphery of one side of the annular liquid flow cavity (43). The movable chamber (47), the annular liquid flow chamber (43) and the horizontal component movable chamber (47) are connected through the liquid flow hole (48), the other end of the horizontal component movable chamber (47) is provided with a No. 2 rod body through-hole (49), the annular hollow shell (41) is provided with a No. 4 docking disc (410) fixedly connected to the No. 3 docking disc (314) at one end located at the No. 2 rod body through-hole (49), and a piston plate (411) capable of axial movement along the horizontal component movable chamber (47) is placed in the horizontal component movable chamber (47), one end of the piston plate (411) is fixedly installed with a horizontal movable rod (412) that passes through the No. 2 rod body through-hole (49) and the No. 1 rod body through-hole (312), and one end of the horizontal movable rod (412) is fixedly installed inside the rod body fixing groove (313).

6. The device for accurate positioning and guidance of bone tumor surgery according to claim 5, characterized in that: The annular elastic air membrane (44) is an annular structure made of a rubber material with elastic extensibility.

7. The device for accurate positioning and guidance of bone tumor surgery according to claim 6, characterized in that: The closed area formed by the piston plate (411), the horizontal component active cavity (47), the liquid flow hole (48), the annular liquid flow cavity (43) and the annular elastic air membrane (44) is filled with a buffer solution.

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