Aspirator structure for single-port thoracoscopic surgery

Abstract

The invention discloses an aspirator structure for single-port thoracoscopic surgery, which comprises a suction tube body, a control handle, a connector and a suction head, the suction tube body is of a hollow tubular structure, a drainage channel is arranged in the suction tube body, the suction tube body adopts a reducing design, the pipe diameter of one end close to the control handle is larger, and the pipe diameter of one end close to the suction head is gradually reduced; the pipe diameter change part is of a smooth transition structure; the main body part of the suction head is of the cone frustum-shaped structure, the main suction hole is formed in the front end of the main body part, and the multiple deformable suction branches radially distributed on the side face of the main body part are matched, so that impurities in different positions and forms can be sucked from multiple angles, the suction range is expanded, and it is ensured that the impurities in the surgical field can be comprehensively removed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a suction device structure for single-port thoracoscopic surgery. Background Art

[0002] Single-port thoracoscopic surgery is a minimally invasive surgical method developed in recent years. It has been widely used clinically due to its advantages such as less trauma and faster postoperative recovery. During single-port thoracoscopic surgery, an aspirator is an indispensable instrument, which is mainly used to remove blood, tissue fluid, smoke, etc. from the surgical field of view to ensure a clear surgical field of view; however, existing single-port thoracoscopic surgical aspirators have many shortcomings. On the one hand, the diameter design of the aspirator is unreasonable. If the diameter is too thick, it will occupy a larger surgical operation space and affect the operation of other surgical instruments; if the diameter is too thin, it will lead to low suction efficiency and will not be able to quickly and effectively remove impurities in the surgical field of view; on the other hand, the existing aspirator head structure is single, and it is easy to adhere to the tissue during the suction process, causing tissue damage, and it is difficult to accurately aspirate impurities of different positions and shapes; therefore, the present invention provides a suction device structure for single-port thoracoscopic surgery to solve the above technical problems. Summary of the Invention

[0003] In view of the above-mentioned problems existing in the use of the existing single-port thoracoscopic surgical suction device, the present invention is proposed.

[0004] Therefore, the purpose of the present invention is to provide a suction device structure for single-port thoracoscopic surgery to solve the above-mentioned technical problems.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A suction device structure for single-port thoracoscopic surgery includes a suction tube body, a control handle, a connector, and a suction head. The suction tube body is a hollow tubular structure with a drainage channel inside. The suction tube body adopts a variable diameter design. The tube diameter is larger at the end near the control handle and gradually decreases at the end near the suction head. The tube diameter change is a smooth transition structure. The suction head is installed at the front end of the suction tube body through a thread. The suction head includes a main body and multiple deformable suction branches. The main body is a truncated cone structure with a main suction hole at the front end. The multiple suction branches are radially distributed on the side of the main body. The suction branches are made of flexible material, have independent suction channels inside, and have side suction holes at the end. The suction branches are provided with ring-shaped memory alloy wires. The number of the suction branches is 1-6. An adjustment component is provided inside the suction tube body, and the control handle is installed at the rear end of the suction tube body. A control button is provided on the control handle, and a circuit is provided in the control button. The control button is used to start the motor to rotate forward and reverse.

[0006] Preferably, the adjustment component includes a stretching rope A and a stretching rope B, one end of the stretching rope B is fixedly connected to the stretching block in the attraction head, and the other end of the stretching block is connected to the corresponding ring shape memory alloy wire through multiple branch ropes.

[0007] Preferably, the other end of the stretching rope B is rotatably connected to the threaded connecting nail, and the other end of the threaded connecting nail is threadedly connected to the threaded connecting cap, and the other end of the threaded connecting cap is rotatably connected to the stretching rope A. One end of the stretching rope A slides through the guide block and the mounting frame, and the guide block and the mounting frame are fixedly installed on the surface of the drainage channel in turn.

[0008] Preferably, the adjustment component includes a motor, which is fixedly mounted on the surface of the mounting frame, and the output shaft of the motor rotates through the mounting frame and is fixedly connected to the rotating gear disk, which engages with the surface of the tensile rope A. Rotating the rotating gear disk can drive the tensile rope A to slide in the mounting frame.

[0009] Preferably, the diameter of the suction tube body at the end close to the control handle is in the range of 8-12 mm, and the diameter of the tube body at the end close to the suction head is in the range of 3-5 mm.

[0010] Preferably, the ring shape memory alloy wire is made of nickel-titanium alloy.

[0011] Preferably, a scale mark is provided on the outside of the suction tube body to indicate the depth of the suction device inserted into the body.

[0012] Preferably, the side suction hole at the end of the suction branch is elliptical, and the long axis direction is consistent with the extension direction of the suction branch.

[0013] Preferably, the suction tube body, suction head and control handle are all made of medical-grade stainless steel or medical-grade polymer materials, and the surface of the control handle is provided with a frosted layer.

[0014] In the above technical solution, the technical effects and advantages provided by the present invention are: The present invention provides a suction head with a main body having a truncated cone-shaped structure, a main suction hole at the front end, and a plurality of deformable suction branches radially distributed on the side of the main body. Impurities in different positions and shapes can be sucked from multiple angles, thereby expanding the suction range and ensuring that impurities in the surgical field of view can be completely removed. The suction branches are made of flexible materials, have independent suction channels inside, and side suction holes at the ends. During the suction process, the flexible material can avoid rigid adhesion to tissues, thereby effectively reducing tissue damage. The ring-shaped shape memory alloy wire provided on the suction branch can be controlled to deform by adjusting the component, thereby adjusting the shape and angle of the suction branch, so that the suction head can better adapt to the complex structure of the surgical site and accurately suck impurities. In the present invention, the adjustment component controls the stretching block in the suction head through the cooperation of components such as the stretching rope A, the stretching rope B, the threaded connecting nail, and the threaded connecting cap, or adopts a motor-driven rotating gear disk to drive the stretching rope A to slide, and then changes the shape and bending angle of the suction branch through the branch rope adjustment ring shape memory alloy wire; when there is one suction branch, the doctor can flexibly adjust the state of the suction branch through the control button on the control handle according to the actual needs of the operation, making the suction operation more accurate and efficient, and improving the safety and success rate of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of a suction device structure for single-port thoracoscopic surgery proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the straw body; Figure 3 for Figure 2 Schematic diagram of the structure in circle A; Figure 4 for Figure 1 Schematic diagram of the attracting head structure; Figure 5 for Figure 4 Schematic diagram of part of the internal structure.

[0017] Description of reference numerals: 1. Suction tube body; 2. Control handle; 3. Connector; 4. Control button; 5. Mounting frame; 6. Motor; 7. Adjustment assembly; 8. Suction head; 9. Suction branch; 10. Side suction hole; 11. Rotating gear disc; 12. Ring shape memory alloy wire; 13. Guide block; 71. Tensile rope A; 72. Tensile rope B; 73. Threaded connection cap; 74. Threaded connection nail; 75. Tensile block; 76. Branch rope. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Embodiment 1 of the present invention discloses a suction device structure for single-port thoracoscopic surgery.

[0020] Reference Figure 1-5A suction device structure for single-port thoracoscopic surgery includes a suction tube body 1, a control handle 2, a connecting head 3, and a suction head 8. The suction tube body is a hollow tubular structure with a drainage channel inside. The suction tube body adopts a variable diameter design. The diameter of the tube is larger at the end near the control handle 2 and gradually decreases at the end near the suction head 8. The diameter change is a smooth transition structure. The suction head 8 is installed at the front end of the suction tube body through a thread. The suction head 8 includes a main body and multiple deformable suction branches 9. The main body is a truncated cone structure with a main suction hole at the front end. Multiple suction branches 9 are radially distributed on the side of the main body. The suction branches 9 are made of flexible material, with independent suction channels inside and side suction holes 10 at the end. The suction branches 9 are provided with ring shape memory alloy wires 12. The number of suction branches 9 is 1-6; An adjustment component 7 is provided inside the suction tube body, and a control handle 2 is installed at the rear end of the suction tube body. A control button 4 is provided on the control handle 2. The control button 4 has a circuit inside, and the control button 4 is used to start the motor 6 to rotate forward and reverse; The suction tube body adopts a variable diameter design. The tube diameter is larger at the end near the control handle 2, ensuring that there is enough space in the drainage channel, making the suction process smooth, and can quickly and effectively remove blood, tissue fluid, smoke and other impurities in the surgical field of view, thereby improving the suction efficiency; the tube diameter gradually becomes smaller near the end of the suction head 8, reducing the occupation of the surgical operation space, avoiding affecting the operation of other surgical instruments, and ensuring the smooth progress of single-port thoracoscopic surgery; at the same time, the tube diameter change is a smooth transition structure, which reduces the resistance of the liquid or impurities to the flow in the tube during the suction process, further improving the suction effect.

[0021] The adjustment component 7 includes a stretching rope A71 and a stretching rope B72. One end of the stretching rope B72 is fixedly connected to the stretching block 75 in the suction head 8, and the other end of the stretching block 75 is connected to the corresponding ring shape memory alloy wire 12 through multiple branch ropes 76.

[0022] The other end of the stretching rope B72 is rotatably connected to the threaded connecting nail 74, and the other end of the threaded connecting nail 74 is threadedly connected to the threaded connecting cap 73, and the other end of the threaded connecting cap 73 is rotatably connected to the stretching rope A71. One end of the stretching rope A71 slides through the guide block 13 and the mounting frame 5, and the guide block 13 and the mounting frame 5 are fixedly installed on the surface of the drainage channel in turn.

[0023] The adjustment component 7 includes a motor 6, which is fixedly mounted on the surface of the mounting frame 5, and the output shaft of the motor 6 rotates through the mounting frame 5 and is fixedly connected to the rotating gear disc 11. The rotating gear disc 11 engages with the surface of the tensile rope A71. Rotating the rotating gear disc 11 can drive the tensile rope A71 to slide in the mounting frame 5.

[0024] The diameter of the suction tube body near the control handle 2 is in the range of 8-12 mm, and the diameter of the tube body near the suction head 8 is in the range of 3-5 mm; The diameter of the suction tube body near the control handle 2 is in the range of 8-12mm, and the diameter of the tube body near the suction head 8 is in the range of 3-5mm. Such a tube diameter setting ensures the suction efficiency while minimizing the occupation of the surgical operation space, which meets the special needs of single-port thoracoscopic surgery.

[0025] The ring shape memory alloy wire 12 is made of nickel-titanium alloy.

[0026] There are scale marks on the outside of the suction tube body to indicate the depth of the suction device inserted into the body; the scale marks set on the outside of the suction tube body can clearly indicate the depth of the suction device inserted into the body, making it convenient for doctors to accurately grasp the position of the suction device in the patient's body, avoiding unnecessary harm to the patient due to excessive insertion, and improving the accuracy and safety of surgical operations.

[0027] The side suction hole 10 at the end of the suction branch 9 is elliptical, and the long axis direction is consistent with the extension direction of the suction branch 9.

[0028] The suction tube body, suction head 8 and control handle 2 are all made of medical grade stainless steel or medical grade polymer materials, and the surface of the control handle 2 is set to a frosted layer; The side suction hole 10 at the end of the suction branch 9 is elliptical, and the long axis direction is consistent with the extension direction of the suction branch 9. This design can increase the suction area, improve the suction effect, and reduce the pulling of the tissue during the suction process; the suction tube body, suction head 8 and control handle 2 are all made of medical grade stainless steel or medical grade polymer materials, which ensures the strength, corrosion resistance and biocompatibility of the suction device, and ensures its safety and reliability during the operation; the surface of the control handle 2 is set to a frosted layer, which increases the friction when the doctor holds it, prevents the suction device from slipping during the operation, and improves the stability of the operation.

[0029] Example 2 1. Assembly of the overall structure of the attractor This single-port thoracoscopic surgery suction device mainly consists of a suction tube body 1, a control handle 2, a connecting head 3, a suction head 8, and an adjustment component 7. The suction tube body is made of medical-grade stainless steel or medical-grade polymer material and has a hollow tubular structure with a drainage channel formed inside. The suction tube body has a variable diameter design. The diameter of the tube near the control handle 2 is set at 8-12mm, and the diameter of the tube near the suction head 8 is 3-5mm. The tube diameter change adopts a smooth transition structure to ensure the smooth flow of internal liquid or impurities. The suction head 8 is connected to the front end of the suction tube body by a thread, which is convenient for disassembly and replacement. The main body of the suction head 8 is a truncated cone structure with a main suction hole at the front end. Multiple suction branches 9 are radially distributed on the side of the main body. The suction branches 9 are made of flexible material and have independent suction channels inside. The ends are provided with elliptical side suction holes 10, and the long axis direction of the side suction holes 10 is consistent with the extension direction of the suction branches 9, thereby improving the suction effect. A ring-shaped nickel-titanium alloy wire is embedded in each suction branch 9 to provide support for the deformation of the suction branch 9. The control handle 2 is mounted at the rear end of the suction tube and has a frosted surface to increase grip friction. The control handle 2 houses a circuit connected to the control button 4, which controls the adjustment assembly 7. The outside of the suction tube is engraved with scale markings to accurately indicate the depth of insertion of the suction device into the body.

[0030] 2. Implementation Method of Adjustment Component 7 (1) Rope transmission adjustment method One end of the stretching rope B72 in the adjustment assembly 7 is fixedly connected to the stretching block 75 in the suction head 8. The other end of the stretching block 75 is connected to the corresponding ring shape memory alloy wire 12 through multiple branch ropes 76. The other end of the stretching rope B72 is rotatably connected to the threaded connecting nail 74. The other end of the threaded connecting nail 74 is threadedly engaged with the threaded connecting cap 73. The other end of the threaded connecting cap 73 is further rotatably connected to the stretching rope A71. One end of the stretching rope A71 slides through the guide block 13 and the mounting frame 5 fixedly mounted on the surface of the drainage channel. When the doctor presses the control button 4 on the control handle 2, the circuit controls the transmission action, driving the stretching rope A71 to slide in the mounting frame 5, and through the transmission of the threaded connecting nail 74 and the threaded connecting cap 73, pulling the stretching rope B72, thereby driving the stretching block 75 to move. The stretching block 75 deforms the ring shape memory alloy wire 12 through the branch rope 76, thereby achieving the shape and angle adjustment of the attraction branch 9.

[0031] (2) Motor 6 drive adjustment method In another embodiment, the adjustment component 7 includes a motor 6, which is fixedly mounted on the surface of the mounting frame 5. The output shaft of the motor 6 rotates through the mounting frame 5 and is fixedly connected to the rotating gear disk 11, and the rotating gear disk 11 engages with the surface of the stretching rope A71; when the doctor operates the control button 4 on the control handle 2, the circuit starts the motor 6, and the motor 6 drives the rotating gear disk 11 to rotate. Since the rotating gear disk 11 engages with the stretching rope A, it drives the stretching rope A71 to slide in the mounting frame 5. The subsequent transmission process is the same as the rope transmission adjustment method, thereby realizing flexible adjustment of the attraction branch 9.

[0032] 3. Operation of the suction device Before performing a single-port thoracoscopic surgery, medical staff first select a suitable suction head 8 according to the surgical requirements, and install the suction head 8 on the front end of the suction tube body through a threaded connection; during the operation, the doctor holds the control handle 2 and adjusts the shape and angle of the suction branch 9 of the suction head 8 through the control button 4 on the control handle 2 and the adjustment component 7 according to the position and form of impurities such as blood, tissue fluid, smoke, etc. in the surgical field of view; the variable diameter design of the suction tube body enables the doctor to ensure the suction efficiency during operation without affecting the operation of other surgical instruments due to the excessive diameter of the tube. During the suction process, the main suction hole and the side suction hole 10 work together to suck impurities into the drainage channel; the scale markings on the outside of the suction tube body can help the doctor grasp the depth of the suction device inserted into the body in real time to ensure safe operation; after the operation, the medical staff can remove the suction head 8 from the suction tube body for cleaning and disinfection for next use.

[0033] It should be understood that the embodiments of the present application are not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present application is limited only by the appended claims.

[0034] The above-described embodiments merely represent several implementation methods of the embodiments of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the embodiments of the present application, and these modifications and improvements fall within the scope of protection of the embodiments of the present application.

Claims

1. A suction device structure for single-port thoracoscopic surgery, characterized in that: The invention comprises a suction tube body (1), a control handle (2), a connecting head (3), and a suction head (8). The suction tube body (1) is a hollow tubular structure with a drainage channel provided therein. The suction tube body (1) adopts a variable diameter design, with a larger diameter at one end close to the control handle (2) and a gradually smaller diameter at one end close to the suction head (8), and a smooth transition structure at the point where the diameter changes. The suction head (8) is installed on the front end of the suction tube body (1) through a thread, and the suction head (8) includes a main body and a plurality of deformable suction branches (9). The main body is a truncated cone structure, and a main suction hole is provided at the front end. The plurality of suction branches (9) are radially distributed on the side of the main body. The suction branches (9) are made of a flexible material, and are provided with independent suction channels inside. The end is provided with a side suction hole (10), and the suction branches (9) are provided with a ring shape memory alloy wire (12); An adjustment component (7) is provided inside the suction tube body (1), and the control handle (2) is installed at the rear end of the suction tube body (1). A control button (4) is provided on the control handle (2), and a circuit is provided inside the control button (4).

2. The suction device structure for single-port thoracoscopic surgery according to claim 1, characterized in that: The adjustment component (7) comprises a stretching rope A (71) and a stretching rope B (72), one end of the stretching rope B (72) is fixedly connected to a stretching block (75) in the suction head (8), and the other end of the stretching block (75) is connected to corresponding ring shape memory alloy wires (12) through multiple branch ropes (76).

3. The suction device structure for single-port thoracoscopic surgery according to claim 2, characterized in that: The other end of the stretching rope B (72) is rotatably connected to the threaded connecting nail (74), and the other end of the threaded connecting nail (74) is threadedly connected to the threaded connecting cap (73), and the other end of the threaded connecting cap (73) is rotatably connected to the stretching rope A (71). One end of the stretching rope A (71) slides through the guide block (13) and the mounting frame (5), and the guide block (13) and the mounting frame (5) are fixedly mounted on the surface of the drainage channel in sequence.

4. The suction device structure for single-port thoracoscopic surgery according to claim 3, characterized in that: The adjustment assembly (7) includes a motor (6), which is fixedly mounted on the surface of the mounting frame (5), and the output shaft of the motor (6) rotates through the mounting frame (5) and is fixedly connected to the rotating gear disc (11), and the rotating gear disc (11) is engaged with the surface of the tensile rope A (71). Rotating the rotating gear disc (11) can drive the tensile rope A (71) to slide in the mounting frame (5).

5. The suction device structure for single-port thoracoscopic surgery according to claim 1, characterized in that: The diameter of the suction tube body (1) at the end close to the control handle (2) is in the range of 8-12 mm, and the diameter of the tube at the end close to the suction head (8) is in the range of 3-5 mm.

6. The suction device structure for single-port thoracoscopic surgery according to claim 1, characterized in that: The ring shape memory alloy wire (12) is made of nickel-titanium alloy.

7. The suction device structure for single-port thoracoscopic surgery according to claim 1, characterized in that: The outer side of the suction tube body (1) is provided with a scale mark for indicating the depth of the suction device inserted into the body.

8. The suction device structure for single-port thoracoscopic surgery according to claim 1, characterized in that: The side suction hole at the end of the suction branch (9) is elliptical, and the long axis direction is consistent with the extension direction of the suction branch (9).

9. The suction device structure for single-port thoracoscopic surgery according to any one of claims 1 to 8, characterized in that: The suction tube body (1), the suction head (8) and the control handle (2) are all made of medical-grade stainless steel or medical-grade polymer materials, and the surface of the control handle (2) is provided with a frosted layer.

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