Multifunctional aspirator suitable for endoscopic surgery

Abstract

The invention discloses a multifunctional aspirator suitable for endoscopic surgery, which integrates the functions of suction, flushing and multi-angle adjustment, and solves the problems of low operation efficiency, surgical field interference and the like of traditional equipment. The aspirator comprises an aspiration head, a rod body and a handle. The aspiration head is connected with the rod body through a movable rotating joint, and a plurality of aspiration openings are evenly distributed in the surface of the aspiration head to reduce the risk of negative pressure injury. A rotary adjusting mechanism is arranged at the lower end of the rod body, accurate deflection of the suction head from 60 degrees to 90 degrees is achieved through gear transmission, and the suction head adapts to a complex anatomical structure; a double-channel pipeline is integrated in the rod body and connected with the suction head and the suction button and the flushing button of the handle respectively, and the single-hand switching function is supported. Through a modular structure and intelligent control, the endoscope operation efficiency and safety are remarkably improved, the equipment replacement time is shortened, the tissue damage risk is reduced, and the endoscope system is suitable for scenes such as minimally invasive surgery and pleuroperitoneal cavity operation and has high clinical application value.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a multifunctional aspirator suitable for laparoscopic surgery, which integrates suction, flushing and multi-angle adjustment functions and is suitable for minimally invasive surgery scenarios. Background Art

[0002] Laparoscopic surgery, as the core technology of minimally invasive surgery, completes the operation by inserting a laparoscope and surgical instruments through a small incision. It has the advantages of less trauma and faster recovery, and has been widely used in general surgery, gynecology, thoracic surgery and other fields. However, the minimally invasive nature of laparoscopic surgery places extremely high demands on the clarity of the surgical field - if intraoperative bleeding, exudate or smoke is not cleared in time, it will directly block the lens, causing blurred vision for the doctor, thereby increasing the risk of operational errors (such as accidental injury to blood vessels, organ perforation, etc.), and even forcing the operation to be interrupted for surgical field cleaning, significantly prolonging the operation time and increasing the incidence of complications. Therefore, as a key tool for maintaining a clear surgical field, the performance of the suction device directly affects the efficiency and safety of the operation.

[0003] Traditional laparoscopic surgical aspirators generally have the following technical defects:

[0004] Rigid angle adjustment mechanism: Most suction devices use a fixed connection or simple hinge structure between the suction head and the rod. The deflection angle usually does not exceed 30 degrees and needs to be manually bent and adjusted. In surgeries involving deep cavities (such as the pelvic cavity and thoracic cavity) or complex anatomical structures (such as areas with dense blood vessels and nerves), fixed-angle suction devices are difficult to approach the target area. Doctors need to repeatedly adjust the position of the instrument or move the laparoscope lens as a whole. This operation is not only time-consuming, but may also damage surrounding tissues due to the shaking of the instrument.

[0005] Single function leads to process fragmentation: Traditional suction devices only have negative pressure suction function. If the surgical field needs to be flushed during surgery (such as to remove blood clots or dilute chemical burn fluid), the suction operation must be suspended and replaced with a flushing tube or double-lumen tube device. Frequent instrument changes not only interrupt the rhythm of the operation, but also increase the risk of infection due to the instruments entering and exiting the incision. To save time, some doctors may choose to manually flush with a saline syringe, but this cannot be done simultaneously with suction, resulting in fluid overflow and contamination of the surgical field.

[0006] Lack of surgical field protection design: The suction port of traditional suction devices is mostly unilateral centralized or open-end design, and the negative pressure distribution is uneven. When the suction head is close to the tissue, the local negative pressure may exceed -100mmHg (far exceeding the safety threshold of -40mmHg), causing tissue adsorption, tearing or vascular collapse. The risk is especially high in surgeries on fragile organs such as the liver and spleen. In addition, the centralized suction port is easily blocked by blood clots or tissue fragments, and the suction device needs to be repeatedly pulled up to clear it, further interfering with the surgical process.

[0007] In summary, the existing suction device technology cannot take into account angle flexibility, functional integration and surgical field safety, and it is difficult to meet the needs of laparoscopic surgery towards precision and intelligence. Summary of the Invention

[0008] The present invention aims to solve the problems of limited angle adjustment, single function and interference with the surgical field of existing laparoscopic surgical suction devices, and provide an integrated suction device with compact structure, easy operation, multi-angle adjustment and flushing functions.

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] A multifunctional suction device suitable for laparoscopic surgery, comprising a suction head, a rod body and a handle;

[0011] The suction head is connected to the upper end of the rod body through a movable rotating joint, and a plurality of suction ports are evenly distributed on the surface of the suction head;

[0012] The rod body is provided with a rotation adjustment mechanism near its lower end for controlling the deflection angle of the suction head relative to the rod body, with the deflection range being 60° to 90°;

[0013] The handle is integrated with a suction button and a flushing button;

[0014] A double-channel pipeline is provided inside the rod body, connecting the suction head with the suction button and the flushing button of the handle respectively.

[0015] Furthermore, the rotation adjustment mechanism includes:

[0016] A rotating button is arranged on the outer side of the lower end of the rod;

[0017] The gear transmission assembly connects the rotary button and the movable rotary joint, and drives the gear transmission assembly to deflect the suction head through the rotary button; it also includes a ratchet self-locking mechanism for fixing the position of the suction head after it deflects to the target angle.

[0018] Furthermore, an anti-clogging filter is provided on the inner wall of the suction port of the suction head, and the pore size of the filter is less than 0.2 mm.

[0019] Furthermore, the dual-channel pipeline includes:

[0020] Suction channel: connects the suction head with the external negative pressure source;

[0021] Flushing channel: connects the suction head and the saline bag;

[0022] The suction button and the flushing button respectively control the opening and closing of the suction channel and the flushing channel through the electromagnetic valve.

[0023] Furthermore, the suction head and the rod body are made of medical-grade stainless steel or titanium alloy; the handle is made of antibacterial polymer material with a surface hardness of ≥80 Shore D; and the movable rotary joint is made of ceramic bearings or polyetheretherketone plastic.

[0024] Beneficial effects of the present invention:

[0025] Multi-angle adjustment: The suction head can be deflected 60°-90° by rotating the button to adapt to deep or complex anatomical structures;

[0026] Functional integration: Suction and flushing can be switched with one hand, reducing equipment replacement time;

[0027] Surgical field protection: evenly distributed suction ports reduce local negative pressure peaks and avoid tissue adsorption damage;

[0028] Structural optimization: Modular design facilitates disinfection and maintenance, meeting the aseptic requirements of laparoscopic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic diagram of the overall structure of a multifunctional suction device suitable for laparoscopic surgery according to the present invention. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] In the description of the embodiments of the present invention, "a plurality of" means at least two.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] Example:

[0034] This embodiment provides a multifunctional suction device suitable for laparoscopic surgery, which is characterized by:

[0035] It includes a suction head 1, a rod body 2 and a handle 3;

[0036] The suction head 1 is connected to the upper end of the rod body 2 via a movable rotary joint 4. A plurality of suction ports 5 are evenly distributed on the surface of the suction head 1 to ensure uniform distribution of negative pressure and reduce the risk of tissue damage.

[0037] A rotation adjustment mechanism is provided near the lower end of the rod body 2 to control the deflection angle of the suction head 1 relative to the rod body 2. The deflection range is 60° to 90° to meet the requirements of different surgical viewing angles.

[0038] The handle 3 integrates a suction button 6 and a flushing button 7;

[0039] A dual-channel pipeline is provided inside the rod body 2 , connecting the suction head 1 with the suction button 6 and the flushing button 7 of the handle 3 respectively.

[0040] As a further improvement of this embodiment,

[0041] The rotation adjustment mechanism comprises:

[0042] The rotation button 8 is arranged on the outer side of the lower end of the rod body 2;

[0043] The gear transmission assembly connects the rotating button 8 and the movable rotating joint 4, and drives the gear transmission assembly through the rotating button 8 to drive the suction head 1 to deflect; it also includes a ratchet self-locking mechanism for fixing the position of the suction head 1 after it deflects to the target angle.

[0044] As a further improvement of this embodiment,

[0045] An anti-clogging filter is provided on the inner wall of the suction port 5 of the suction head 1 , and the pore size of the filter is less than 0.2 mm.

[0046] As a further improvement of this embodiment,

[0047] The dual-channel pipeline includes:

[0048] Suction channel 9: connects the suction head with the external negative pressure source;

[0049] Flushing channel 10: connects the suction head and the saline bag;

[0050] The suction button 6 and the flushing button 7 respectively control the opening and closing of the suction channel 9 and the flushing channel 10 through the electromagnetic valve 11.

[0051] As a further improvement of this embodiment,

[0052] The suction head and the rod body are made of medical-grade stainless steel or titanium alloy; the handle is made of antibacterial polymer material with a surface hardness of ≥80 Shore D; and the movable rotary joint is made of ceramic bearings or polyetheretherketone plastic.

[0053] Operation process

[0054] Suction mode: Press the suction button, the solenoid valve opens the suction channel, and negative pressure clears blood or exudate from the surgical field through evenly distributed suction ports;

[0055] Flush mode: Press the flush button, the solenoid valve switches to the flush channel, and normal saline is sprayed out through the nozzle at the end of the rod to clean the surgical field;

[0056] Angle adjustment: Rotate the button at the lower end of the rod, and the suction head will deflect to the target angle and then lock it to maintain a stable surgical field of view.

[0057] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A multifunctional suction device suitable for laparoscopic surgery, characterized by: Including suction head, rod body and handle; The suction head is connected to the upper end of the rod body through a movable rotating joint, and a plurality of suction ports are evenly distributed on the surface of the suction head; The rod body is provided with a rotation adjustment mechanism near its lower end for controlling the deflection angle of the suction head relative to the rod body, with the deflection range being 60° to 90°; The handle is integrated with a suction button and a flushing button; A double-channel pipeline is provided inside the rod body, connecting the suction head with the suction button and the flushing button of the handle respectively.

2. The multifunctional suction device suitable for laparoscopic surgery according to claim 1, characterized in that: The rotation adjustment mechanism comprises: A rotating button is arranged on the outer side of the lower end of the rod; The gear transmission assembly connects the rotary button and the movable rotary joint, and drives the gear transmission assembly to deflect the suction head through the rotary button; it also includes a ratchet self-locking mechanism for fixing the position of the suction head after it deflects to the target angle.

3. The multifunctional suction device suitable for laparoscopic surgery according to claim 1, characterized in that: An anti-clogging filter is provided on the inner wall of the suction port of the suction head, and the pore size of the filter is less than 0.2 mm.

4. The multifunctional suction device according to claim 1, characterized in that: The dual-channel pipeline includes: Suction channel: connects the suction head with the external negative pressure source; Flushing channel: connects the suction head and the saline bag; The suction button and the flushing button respectively control the opening and closing of the suction channel and the flushing channel through the electromagnetic valve.

5. A multifunctional suction device suitable for laparoscopic surgery according to any one of claims 1 to 4, characterized in that: The suction head and the rod body are made of medical-grade stainless steel or titanium alloy; the handle is made of antibacterial polymer material with a surface hardness of ≥80 Shore D; and the movable rotary joint is made of ceramic bearings or polyetheretherketone plastic.

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