Miniature cage type centrifugal cutter

Abstract

The invention discloses a micro cage type centrifugal resection device, and belongs to the technical field of medical instruments. The miniature cage type centrifugal resection device comprises a centrifugal resection device head assembly and a rotating angle adjusting assembly. The centrifugal resection device head assembly comprises a spindle-shaped stainless steel cage body, a centrifugal rotor arranged in the spindle-shaped stainless steel cage body, a stainless steel resection piece connected with the centrifugal rotor and a driving motor connected with the centrifugal rotor. According to the micro cage type centrifugal resection device provided by the embodiment of the invention, through the design of the spindle-shaped stainless steel cage body, the front end of the spindle-shaped stainless steel cage body is made to form a strip seam for lesion tissues to be squeezed in by utilizing centrifugal acting force generated by rotation of the stainless steel resection sheet; and the front end of the spindle-shaped stainless steel cage body is driven by the rotating angle adjusting assembly to do conical rotating angle motion. In this way, focus tissue can be cut off and smashed more conveniently, accurately, efficiently, safely and comfortably, and adaptability is higher.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and in particular, relates to a micro cage centrifugal resection device. Background Art

[0002] Minimally invasive surgery has been widely used in clinical treatment. It can not only take samples, remove or inject drugs at the lesion site, but also has the advantages of less trauma, less pain, faster recovery and higher safety. Minimally invasive surgery is used in many diseases and has a wide range of applications.

[0003] However, most existing minimally invasive surgical instruments have complex structures, small surgical space, and difficult movements, which reduces the accuracy and efficiency of minimally invasive surgery. Summary of the invention

[0004] The present application provides a micro cage centrifugal resectoscope, which is a micro flexible minimally invasive surgical instrument with high surgical efficiency, safety and reliability, good comfort and strong adaptability, and is used to solve the above-mentioned technical problems.

[0005] In order to achieve the above application purpose, the technical solution adopted in this application is as follows:

[0006] The embodiment of the present application provides a micro cage type centrifugal resection device, comprising a centrifugal resection device head assembly and an angle adjustment assembly, wherein the centrifugal resection device head assembly comprises a spindle-shaped stainless steel cage body, a centrifugal rotor disposed in the spindle-shaped stainless steel cage body, a stainless steel resection piece connected to the centrifugal rotor, and a driving motor connected to the centrifugal rotor;

[0007] The centrifugal rotor is used to drive the stainless steel excision blade to rotate and generate centrifugal force when driven by the driving motor, so as to squeeze the spindle-shaped stainless steel cage body to expand outward, so that the front end of the spindle-shaped stainless steel cage body forms a slit for the lesion tissue to squeeze in, and the stainless steel excision blade is also used to excise and crush the lesion tissue;

[0008] The rotation angle adjustment component is connected to the rear end of the spindle-shaped stainless steel cage body and is used to drive the spindle-shaped stainless steel cage body so that the front end of the spindle-shaped stainless steel cage body performs a cone-shaped rotation angle movement.

[0009] In some embodiments, the stainless steel resection blade is a spiral stainless steel resection blade.

[0010] In some embodiments, the drive motor is a micro coreless motor.

[0011] In some embodiments, the drive motor and the centrifuge rotor are connected via a motor-rotor connecting shaft.

[0012] In some embodiments, the angle adjustment assembly includes: an angle motor, a cam connected to the angle motor, an angle pull rod connected to the cam, a rotating ring connected to the angle pull rod, and an outer cover, wherein the rotating ring is used to be sleeved and connected to the tail end of the spindle-shaped stainless steel cage.

[0013] In some embodiments, the micro-cage centrifugal resection device further comprises a control assembly connected to the centrifugal resection device head assembly via a flexible tube;

[0014] A medicine injection pipe, a waste liquid suction pipe and a power line are arranged in the flexible pipe, and one end of the medicine injection pipe, one end of the waste liquid suction pipe and one end of the power line are all extended into the spindle-shaped stainless steel cage;

[0015] The control component is used for injecting medicine into the spindle-shaped stainless steel cage through the medicine injection tube, extracting waste liquid from the spindle-shaped stainless steel cage through the waste liquid suction tube, and supplying power to the driving motor and the corner motor through the power cord.

[0016] In some embodiments, the power supply line includes a motor power supply line and a corner motor power supply line;

[0017] In the flexible pipe, the medicine injection pipe and the waste liquid suction pipe are arranged opposite to each other, and the motor power supply line and the corner motor power supply line are arranged at intervals.

[0018] In some embodiments, the control assembly includes: a transition connection joint, a front fixing member, an open connection pipe, a middle fixing member, an injection pump, an injection pump connecting rod, and an injection pump handle connected in sequence, the transition connection joint is also connected to the flexible tube, and the injection pump handle is also connected to the first handle rotating shaft;

[0019] The other end of the medicine injection tube is connected to the injection pump, and the other end of the power line and the other end of the waste liquid suction tube are both extended from the opening of the open connecting tube.

[0020] In some embodiments, the control assembly further comprises: a rear fixing member, a suction pump, a suction pump connecting rod, and a suction pump handle connected in sequence, the suction pump handle being further connected to a second handle rotating shaft;

[0021] The other end of the waste liquid suction pipe is connected to a suction pump.

[0022] In some embodiments, the control assembly further includes: a main handle, a main power switch, a battery compartment, a rechargeable battery installed in the battery compartment, a motor control button, a button pressure plate for pressing the motor control button, and a corner button.

[0023] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0024] The embodiment of the present application provides a micro cage centrifugal resection device, which is designed with a spindle-shaped stainless steel cage body and uses the centrifugal force generated by the rotation of the stainless steel resection piece to form a slit at the front end of the spindle-shaped stainless steel cage body for the lesion tissue to squeeze in, and the front end of the spindle-shaped stainless steel cage body is driven to rotate in a cone shape through the angle adjustment component. In this way, the lesion tissue can be removed and crushed more conveniently, accurately, efficiently, safely and comfortably, and the adaptability is stronger and can adapt to more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a micro cage centrifugal resection device provided in an embodiment of the present application is shown;

[0027] Figure 2 Shows Figure 1 A sectional view of the

[0028] Figure 3 Shows Figure 1 BB cross-sectional view;

[0029] Figure 4 Shows Figure 1 CC cross-sectional view.

[0030] Illustration Description:

[0031] 1. Centrifugal resection head assembly; 2. Flexible tube; 3. Transition joint; 4. Front fixing piece; 5. Medicine injection tube; 6. Power cord; 7. Open connection tube; 8. Waste liquid suction tube; 9. Middle fixing piece; 10. Injection pump; 11. Injection pump connecting rod; 12. Rear fixing piece; 13. Suction pump; 14. Suction pump connecting rod; 15. Suction pump handle; 16. Main power switch; 17. Second handle shaft; 18. Battery compartment; 19. Rechargeable battery; 2 0. Main handle; 21. Motor control button; 22. Button pressure plate; 23. Corner button; 24. Injection pump handle; 25. First handle shaft; 26. Spindle-shaped stainless steel cage; 27. Centrifugal rotor; 28. Stainless steel cutting piece; 29. ​​Motor and rotor connecting shaft; 30. Micro hollow cup motor; 31. Rotating collar; 32. Motor power supply line; 33. Corner motor power supply line; 34. Corner pull rod; 35. Cam; 36. Corner motor; 37. Outer cover. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.

[0036] See also Figures 1 to 4 As shown, the embodiment of the present application provides a micro cage type centrifugal resection device, including a centrifugal resection device head assembly 1 and an angle adjustment assembly, wherein the centrifugal resection device head assembly 1 includes a spindle-shaped stainless steel cage 26, a centrifugal rotor 27 disposed in the spindle-shaped stainless steel cage 26, a stainless steel resection piece 28 connected to the centrifugal rotor 27, and a drive motor connected to the centrifugal rotor 27. As an example, the spindle-shaped stainless steel cage 26 has a very small diameter and is made of ultra-thin stainless steel, so as to be applied to minimally invasive surgery. As an example, the drive motor is a micro hollow cup motor 30.

[0037] The centrifugal rotor 27 is used to drive the stainless steel resection blade 28 to rotate and generate centrifugal force when driven by the driving motor to squeeze the spindle-shaped stainless steel cage 26 to expand outward, so that the front end of the spindle-shaped stainless steel cage 26 forms a slit for the diseased tissue to squeeze in. The stainless steel resection blade 28 is also used to resect and crush the diseased tissue.

[0038] The angle adjustment component is connected to the tail end of the spindle-shaped stainless steel cage 26, and is used to drive the spindle-shaped stainless steel cage 26 so that the front end of the spindle-shaped stainless steel cage 26 rotates around the center line to achieve a cone-shaped angle movement. As an example, the angle adjustment component includes: an angle motor 36, a cam 35 connected to the angle motor 36, an angle pull rod 34 connected to the cam 35, a rotating collar 31 connected to the angle pull rod 34, and an outer cover 37, and the rotating collar 31 is used to be sleeved and connected to the tail end of the spindle-shaped stainless steel cage 26. When the angle motor 36 is working, the front end of the spindle-shaped stainless steel cage 26 can be driven to rotate in a cone shape through the cam 35, the angle pull rod 34 and the rotating collar 31.

[0039] The above-mentioned micro-cage centrifugal resection device is designed with a spindle-shaped stainless steel cage 26, and utilizes the centrifugal force generated by the rotation of the stainless steel resection piece 28 to form a slit at the front end of the spindle-shaped stainless steel cage 26 for the lesion tissue to squeeze in, and the front end of the spindle-shaped stainless steel cage 26 is driven to rotate in a cone shape through the angle adjustment component. In this way, the lesion tissue can be removed and crushed more conveniently, accurately, efficiently, safely and comfortably, and the adaptability is stronger, and it can adapt to more scenarios (for example, the surgical space is small and the action is difficult to carry out).

[0040] In some embodiments of the present application, the stainless steel resection blade 28 is a spiral stainless steel resection blade 28, which is conducive to generating centrifugal force, has a better effect on the resection and crushing of the diseased tissue, and can reduce the risk of resection device failure.

[0041] In some embodiments of the present application, the driving motor and the centrifugal rotor 27 are connected via a motor-rotor connecting shaft 29 .

[0042] In some embodiments of the present application, the micro-cage centrifugal resection device further comprises a control component connected to the centrifugal resection device head component 1 via a flexible tube 2 .

[0043] The flexible tube 2 is provided with a medicine injection tube 5, a waste liquid suction tube 8 and a power line 6, and one end of the medicine injection tube 5, one end of the waste liquid suction tube 8 and one end of the power line 6 are all extended into the spindle-shaped stainless steel cage 26. As an example, the power line 6 includes a motor power line 32 and a corner motor power line 33.

[0044] The control component is used to inject medicine into the spindle-shaped stainless steel cage 26 through the medicine injection tube 5, extract the waste liquid in the spindle-shaped stainless steel cage 26 through the waste liquid suction tube 8, and supply power to the drive motor and the corner motor 36 through the power cord 6.

[0045] The above-mentioned micro-cage centrifugal resectoscope can not only add medicine through the medicine injection tube 5, but also extract the accumulated fluid, blood, excess medicine and other liquids in the surgical area or wound through the waste liquid suction tube 8, which can indirectly improve the accuracy, efficiency, safety and comfort of minimally invasive surgery, that is, it can more accurately, efficiently, safely and comfortably resect and crush the diseased tissue.

[0046] As an example, in the flexible tube 2, the medicine injection tube 5 and the waste liquid suction tube 8 are arranged opposite to each other, so as to avoid the mutual influence between the medicine injection tube 5 and the waste liquid suction tube 8, thereby improving the utilization rate of the newly injected medicine and the waste liquid extraction efficiency.

[0047] As an example, in the flexible tube 2, the motor power supply line 32 and the corner motor power supply line 33 are arranged at intervals, which can reduce the electromagnetic interference generated by the mutual influence between the motor power supply line 32 and the corner motor power supply line 33 and improve the safety of minimally invasive surgery.

[0048] In some embodiments of the present application, the control assembly includes: a transition connection joint 3, a front fixing member 4, an open connecting tube 7, a middle fixing member 9, an injection pump 10, an injection pump connecting rod 11, and an injection pump handle 24 connected in sequence, the transition connection joint 3 is also connected to the flexible tube 2, and the injection pump handle 24 is also connected to the first handle rotating shaft 25.

[0049] The other end of the medicine injection tube 5 is connected to the injection pump 10 , and the other end of the power cord 6 and the other end of the waste liquid suction tube 8 both extend from the opening of the open connecting tube 7 .

[0050] In some embodiments of the present application, the control assembly further includes: a rear fixing member 12, a suction pump 13, a suction pump connecting rod 14, and a suction pump handle 15 connected in sequence, and the suction pump handle 15 is also connected to a second handle rotating shaft 17;

[0051] The other end of the waste liquid suction pipe 8 is connected to a suction pump 13 .

[0052] In some embodiments of the present application, the control component also includes: a main handle 20, a main power switch 16, a battery compartment 18, a rechargeable battery 19 installed in the battery compartment 18, a motor control button 21, a button pressure plate 22 for pressing the motor control button 21, and a corner button 23.

[0053] In summary, the embodiment of the present application provides a micro cage centrifugal resection device, the working end of which is a centrifugal resection device head assembly 1, which is connected and fixed to the outer end of the main handle 20 through a flexible tube 2 at a transition connection joint 3. Specifically, the main handle 20 is equipped with: an open connection pipe 7, an injection pump 10, an injection pump handle 24, a suction pump 13, a suction pump handle 15, and a battery compartment 18, a rechargeable battery 19, a main power switch 16, a motor control button 21, a button pressure plate 22, and a corner button 23. Among them, the open connection pipe 7 is fixed to the front end of the main handle 20 through a front fixing member 4, the injection pump 10 is fixed to the middle of the main handle 20 through a middle fixing member 9, and the suction pump 13 is fixed to the rear of the main handle 20 through a rear fixing member 12. The suction pump handle 15 can rotate around the second handle rotation axis 17, and the injection pump handle 24 can rotate around the first handle rotation axis 25.

[0054] Therefore, the working principle of a micro cage centrifugal resection device provided in the embodiment of the present application is:

[0055] When working, the main power switch 16 is closed, and the resection device is in a power supply standby state. The button pressure plate 22 is pressed, and the motor control button 21 is pressed down to turn on. The micro hollow cup motor 30 in the cage works, and the centrifugal rotor 27 is driven to rotate at high speed through the motor and rotor connecting shaft 29. The spiral stainless steel resection blade 28 on the centrifugal rotor 27 also rotates at high speed. Due to the centrifugal effect of the resection blade, the soft spindle-shaped stainless steel cage 26 will be squeezed outward to expand and bulge, so that the diseased tissue squeezes into the cage from the slits of the spindle-shaped stainless steel cage 26. The high-speed rotating spiral stainless steel resection blade 28 cuts and crushes these diseased tissues, and the crushed diseased tissues are mixed with the injected liquid medicine, and are sucked out and discharged by the suction pump 13 through the waste liquid suction pipe 8; the liquid medicine needed in the surgical area can be pressed into the injection pump 10 through the liquid medicine injection pipe 5. At the same time, the turning motor 36 can be started by the turning button 23 to drive the front end of the spindle-shaped stainless steel cage 26 to move in a cone shape, which can more accurately, efficiently, safely and comfortably remove and crush the diseased tissue.

[0056] Specifically, when the main power switch 16 is closed, the injection pump handle 24 is pulled to inject the medicine into the surgical area; the suction pump handle 15 is pressed to suck out the waste liquid in the surgical area; the button pressing plate 22 is pressed, the motor control button 21 is pressed and turned on, the micro hollow cup motor 30 rotates at high speed, and the resection piece works; the button pressing plate 22 is pressed again, and the micro hollow cup motor 30 stops. The start and stop of the corner motor 36 can be controlled by the corner button 23.

[0057] In other embodiments of the present application, the rotation speed of the centrifugal rotor 27 and the stainless steel resection blade 28 can be adjusted by adjusting the rotation speed of the driving motor, thereby changing the magnitude of the centrifugal force, so that the size of the slit formed at the front end of the spindle-shaped stainless steel cage 26 can be changed. Such a setting can make the micro-cage centrifugal resection device suitable for the resection of lesions of different types, sizes or locations, and improve the efficiency, accuracy, safety, comfort and adaptability of minimally invasive surgery.

[0058] For example, the rotation speed of the driving motor can be adjusted automatically or manually according to the size of the lesion tissue area to adjust the size of the slit.

[0059] For example, when it is observed that the area of ​​lesion tissue is large, the speed of the drive motor can be appropriately increased (for example, one gear higher) to increase the size of the formed slit and speed up the removal of the lesion tissue, thereby improving the efficiency of minimally invasive surgery.

[0060] For example, when it is observed that the area of ​​lesion tissue is small, the speed of the drive motor can be appropriately lowered (for example, by one gear) to reduce the size of the slit formed and avoid removing normal tissue other than the lesion tissue, thereby achieving more accurate, safe and comfortable removal of the lesion tissue and improving the accuracy, safety, comfort and adaptability of minimally invasive surgery.

[0061] As an example, the micro hollow cup motor 30 is connected in series with an adjustable resistor, and the micro hollow cup motor 30 and the adjustable resistor connected in series are connected to the rechargeable battery 19. In this way, the input voltage of the micro hollow cup motor 30 can be changed by adjusting the size of the adjustable resistor, thereby adjusting the rotation speed of the micro hollow cup motor 30. For example, when the input voltage of the micro hollow cup motor 30 increases (or decreases), the rotation speed of the micro hollow cup motor 30 increases (or decreases) accordingly. For example, a gear knob is also provided on the main handle 20 for adjusting the size of the adjustable resistor. For example, the gear knob can be set to multiple gears, and the resistance values ​​of the adjustable resistors corresponding to different gears are not equal.

[0062] In summary, the micro-cage centrifugal resection device provided in the embodiment of the present application can solve the problems of lesion resection, wound observation, and waste fluid suction generated during surgery in complex situations, thereby improving the accuracy, efficiency, safety and comfort of the surgical medical process and having stronger adaptability.

[0063] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A micro cage centrifugal resection device, characterized in that: It comprises a centrifugal cutter head assembly and a rotation angle adjustment assembly, wherein the centrifugal cutter head assembly comprises a spindle-shaped stainless steel cage, a centrifugal rotor arranged in the spindle-shaped stainless steel cage, a stainless steel cutting piece connected to the centrifugal rotor, and a driving motor connected to the centrifugal rotor; The centrifugal rotor is used to drive the stainless steel resection blade to rotate and generate centrifugal force when driven by the driving motor, so as to squeeze the outward expansion bulge of the spindle-shaped stainless steel cage body, so that a slit is formed at the front end of the spindle-shaped stainless steel cage body for the diseased tissue to squeeze in, and the stainless steel resection blade is also used to resect and crush the diseased tissue; The rotation angle adjustment component is connected to the rear end of the spindle-shaped stainless steel cage body and is used to drive the spindle-shaped stainless steel cage body so that the front end of the spindle-shaped stainless steel cage body performs a cone-shaped rotation angle movement.

2. The micro-cage centrifugal resection device according to claim 1, characterized in that: The stainless steel cutting piece is a spiral stainless steel cutting piece.

3. The micro-cage centrifugal resection device according to claim 1, characterized in that: The driving motor is a micro hollow cup motor.

4. The micro-cage centrifugal resection device according to claim 1, characterized in that: The driving motor and the centrifugal rotor are connected via a motor-rotor connecting shaft.

5. The micro-cage centrifugal resection device according to claim 1, characterized in that: The angle adjustment assembly includes: an angle motor, a cam connected to the angle motor, an angle pull rod connected to the cam, a rotating collar connected to the angle pull rod, and an outer cover, wherein the rotating collar is used to be sleeved and connected to the tail end of the spindle-shaped stainless steel cage.

6. The micro-cage centrifugal resection device according to claim 5, characterized in that: The micro-cage centrifugal resection device also includes a control component connected to the centrifugal resection device head component via a flexible tube; A medicine injection tube, a waste liquid suction tube and a power cord are arranged in the flexible tube, and one end of the medicine injection tube, one end of the waste liquid suction tube and one end of the power cord are all extended into the spindle-shaped stainless steel cage; The control component is used to inject medicine into the spindle-shaped stainless steel cage through the medicine injection tube, extract waste liquid from the spindle-shaped stainless steel cage through the waste liquid suction tube, and supply power to the drive motor and the corner motor through the power cord.

7. The micro-cage centrifugal resection device according to claim 6, characterized in that: The power lines include a motor power line and a corner motor power line; In the flexible tube, the medicine injection tube and the waste liquid suction tube are arranged opposite to each other, and the motor power supply line and the corner motor power supply line are arranged at intervals.

8. The micro-cage centrifugal resection device according to claim 6, characterized in that: The control assembly comprises: a transition connection joint, a front fixing member, an open connection pipe, a middle fixing member, an injection pump, an injection pump connecting rod, and an injection pump handle which are connected in sequence, wherein the transition connection joint is also connected to the flexible pipe, and the injection pump handle is also connected to the first handle rotating shaft; The other end of the medicine injection tube is connected to the injection pump, and the other end of the power cord and the other end of the waste liquid suction tube both extend from the opening of the open connecting tube.

9. The micro-cage centrifugal resection device according to claim 8, characterized in that: The control assembly further comprises: a rear fixing member, a suction pump, a suction pump connecting rod, and a suction pump handle connected in sequence, wherein the suction pump handle is also connected to a second handle rotating shaft; Wherein, the other end of the waste liquid suction pipe is connected to the suction pump.

10. The micro-cage centrifugal resection device according to claim 9, characterized in that: The control assembly further includes: a main handle, a main power switch, a battery compartment, a rechargeable battery installed in the battery compartment, a motor control button, a button pressing plate for pressing the motor control button, and a corner button.

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