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CN-121987361-A - Operation auxiliary device for microwave ablation of liver tumor

CN121987361ACN 121987361 ACN121987361 ACN 121987361ACN-121987361-A

Abstract

The invention relates to the technical field of medical equipment, in particular to an operation auxiliary device for microwave ablation of liver tumors, which comprises an operation table, a supporting platform arranged on one side of the operation table, a rotary driving mechanism arranged on the top of the supporting platform, a lifting adjusting mechanism arranged on the rotary driving mechanism, a lifting sliding seat arranged on the lifting adjusting mechanism and a flexible positioning part arranged on the lifting sliding seat and extending to the position right above the operation table. The controllable pressure is applied to the chest and abdomen through the flexible positioning part, the breathing movement amplitude can be actively and physically limited, and compared with the method which simply relies on the breath holding of a patient, a more stable and durable operation environment is created, and the operation difficulty is reduced. After the operation is finished, the whole auxiliary device is rotated away from the position right above the operating table through the rotary driving mechanism, so that the transfer and the carrying of a patient are not hindered completely, and the turnover efficiency of an operating room is improved.

Inventors

  • LI MING
  • TU QIANG
  • HE JUN
  • Yuan Tinghao
  • YOU XIAOXIANG
  • Xie changji

Assignees

  • 江西省肿瘤医院(江西省第二人民医院、江西省癌症中心)

Dates

Publication Date
20260508
Application Date
20260317

Claims (10)

  1. 1. The operation assisting device for microwave ablation of liver tumors is characterized by comprising an operation table (1), a supporting platform (2) arranged on one side of the operation table (1), a rotary driving mechanism (3) arranged on the top of the supporting platform (2), a lifting adjusting mechanism arranged on the rotary driving mechanism (3), a lifting sliding seat (5) arranged on the lifting adjusting mechanism, and a flexible positioning part (8) arranged on the lifting sliding seat (5) and extending to the position right above the operation table (1); the flexible positioning part (8) is used for adjusting the position height through the lifting adjusting mechanism and is pressed on the chest of a patient to be operated so as to reduce the interference of respiration on surgical puncture, and the flexible positioning part (8) on the lifting adjusting mechanism is driven to rotate to one side of the operating table (1) through the rotary driving mechanism (3) after the operation is completed.
  2. 2. The microwave ablation surgical auxiliary device for liver tumors according to claim 1, wherein the rotary driving mechanism (3) comprises a rotary support base (31) arranged on the top of the support platform (2), a rotary support arranged on the top of the rotary support base (31) and a support platform (35) arranged on the top of the rotary support.
  3. 3. The operation assisting device for microwave ablation of liver tumor according to claim 2, wherein the slewing bearing comprises a bearing outer shell (32) arranged on the slewing bearing base (31), and a bearing inner shell (33) slidably arranged in the bearing outer shell (32) through balls or rollers; wherein the top of the supporting inner shell (33) is coaxially provided with the supporting platform (35); An inner rack is arranged on the inner peripheral wall of the supporting inner shell (33), a servo motor (34) is fixed on the supporting outer shell (32), and a driving gear which is meshed with the inner rack in an adaptive mode is arranged on a power output shaft of the servo motor (34).
  4. 4. A surgical aid for microwave ablation of liver tumors according to claim 3, characterized in that a first position sensor (53) is provided at the bottom of the lifting slide (5) to detect if the patient is on the operating table and to send patient position information to a controller to regulate the rotation of the servo motor (34).
  5. 5. The operation assisting device for microwave ablation of liver tumor according to claim 1, wherein the lifting adjusting mechanism comprises a lower support (4) arranged at the top of the rotary driving mechanism (3), an upper support (6) arranged right above the lower support (4) through at least two guide rods (41), a screw rod (71) arranged between the upper support (6) and the lower support (4) through a bearing, and a screw rod motor (7) arranged on the upper support (6) and used for driving the screw rod (71) to rotate; The screw motor (7) is provided with a coding controller, the lifting slide seat (5) is arranged on the screw (71) through a screw nut, and the lifting slide seat (5) is also provided with a linear bearing which is adaptively inserted into the guide rod (41); The bottom of the upper support (6) is provided with a second position sensor (61) for detecting the position height of the lifting sliding seat (5), and the working state of the screw motor (7) is controlled based on the second position sensor (61).
  6. 6. The operation assisting device for microwave ablation of liver tumor according to claim 1, wherein the flexible positioning part (8) comprises an air bag (81) arranged at the bottom of the lifting sliding seat (5), an air pump (51) is further arranged on the lifting sliding seat (5), the air pump (51) is communicated with the air bag (81) through an air duct (52), a coding controller is arranged on the air pump (51), and an air charging valve (521) is arranged on the air duct (52).
  7. 7. The operation assisting device for microwave ablation of liver tumor according to claim 6, wherein a limit seat (54) is arranged at the bottom of the lifting slide seat (5), an air bag supporting plate (83) assembled in the limit seat (54) is arranged at the top of the air bag (81), a pressure sensor (84) is arranged between the air bag supporting plate (83) and the bottom surface of the lifting slide seat (5) so as to detect that the air bag (81) provides pressure for the chest of a patient, and the working state of the air pump (51) is controlled based on the pressure sensor (84).
  8. 8. The microwave ablation surgical auxiliary device for liver tumors according to claim 7, wherein the balloon (81) is an arc-shaped balloon arranged at the bottom of the balloon supporting plate (83), and a built-in balloon (82) for providing stable support is arranged in the balloon supporting plate, and the built-in balloon (82) and the balloon (81) are independently supplied with air.
  9. 9. The microwave ablation surgical auxiliary device for liver tumors according to claim 7, wherein a plurality of support plate guide rods (85) for centralizing are arranged on the air bag support plate (83), guide holes which are convenient for the support plate guide rods (85) to pass through are formed in the lifting sliding seat (5), buffer springs (851) are sleeved on the support plate guide rods (85), and reserved grooves corresponding to the buffer springs (851) are formed in the lifting sliding seat (5) so as to prevent the air bag (81) from directly striking a patient when rapidly descending.
  10. 10. The operation assisting device for microwave ablation of liver tumor according to claim 6, wherein a plurality of strip-shaped air bags (81) are uniformly arranged at intervals on the top of the lifting slide seat (5).

Description

Operation auxiliary device for microwave ablation of liver tumor Technical Field The invention relates to the technical field of medical appliances, in particular to a liver tumor microwave ablation operation auxiliary device. Background Conventional microwave ablation is a common minimally invasive means of treating liver tumors by placing an ablation antenna in the center of the tumor through percutaneous penetration, and utilizing the microwave thermal effect to coagulate and necrotize the tumor tissue. However, the liver can be significantly displaced with the respiratory motion of the patient, which presents a significant challenge for puncture accuracy. In current clinical practice, to reduce respiratory disturbances, the "passive suppression and immobilization" technique is mainly relied on, i.e. requiring the patient to hold his breath at the critical moment of the puncture. The method has the inherent defects that firstly, the method is completely dependent on the coordination ability and physical ability of a patient, the effect of the method on the old, the weak or the patient incapable of effectively shielding qi is poor, secondly, even if the patient can shield qi, the depth and the amplitude of each breath shielding are difficult to be completely consistent, accumulated errors can be generated among multiple punctures to influence the ablation effect on multiple tumors, and finally, the time of a static window provided by simply depending on the breath shielding of the patient is limited, so that the pressure of a doctor for completing accurate operation in tension time is increased. Therefore, there is a need for an auxiliary device that actively and stably suppresses respiratory motion from interfering with the operation, so as to reduce the dependence on the patient's fit and improve the accuracy and safety of the operation. Disclosure of Invention The invention aims to provide a microwave ablation operation auxiliary device for liver tumors, which can gently and stably press the chest of a patient, thereby physically limiting the respiratory activity of diaphragm and liver and creating a relatively static environment for puncture operation. In order to solve the technical problems, the invention adopts the following technical scheme: The invention provides an operation auxiliary device for microwave ablation of liver tumors, which comprises an operation table, a supporting platform arranged on one side of the operation table, a rotary driving mechanism arranged on the top of the supporting platform, a lifting adjusting mechanism arranged on the rotary driving mechanism, a lifting sliding seat arranged on the lifting adjusting mechanism and a flexible positioning part arranged on the lifting sliding seat and extending to the position right above the operation table, wherein the lifting sliding seat is arranged on the lifting sliding seat; The flexible positioning part is used for adjusting the position height through the lifting and adjusting mechanism and pressing the flexible positioning part on the chest of a patient to be operated so as to reduce the interference of respiration on surgical puncture, and the flexible positioning part on the lifting and adjusting mechanism is driven to rotate to one side of the operating table through the rotary driving mechanism after the operation is completed. In this embodiment, the slewing drive mechanism includes a slewing bearing base disposed at the top of the supporting platform, a slewing bearing disposed at the top of the slewing bearing base, and a supporting platform disposed at the top of the slewing bearing. In yet a further embodiment, the slewing bearing includes a bearing outer shell disposed on the slewing bearing base, a bearing inner shell slidably disposed within the bearing outer shell by balls or rollers; wherein the top of the supporting inner shell is coaxially provided with the supporting platform; An inner rack is arranged on the inner peripheral wall of the supporting inner shell, a servo motor is fixed on the supporting outer shell, and a driving gear which is meshed with the inner rack in an adaptive mode is arranged on a power output shaft of the servo motor. In still further embodiments, a first position sensor is disposed at the bottom of the lifting slide to detect whether the patient is on the operating table, and send patient position information to the controller, so as to adjust the rotation of the servo motor. In still further embodiments, the lifting adjustment mechanism includes a lower support disposed at the top of the rotation driving mechanism, an upper support disposed directly above the lower support through at least two guide rods, a screw rod disposed between the upper support and the lower support through a bearing, and a screw rod motor disposed on the upper support and used for driving rotation of the screw rod; The lifting sliding seat is arranged on the screw rod through a screw rod nut, and is also p