一种可通气式体外开胸器
By integrating airway channels and three-way valve adjustment functions into the external thoracotomy device, the problems of complex operation and safety hazards of existing external thoracotomy devices in cardiac surgery are solved, achieving a clear surgical field and protection for medical staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE AFFILIATED CENT HOSPITAL OF DALIAN UNIV OF TECH (DALIAN CENT HOSPITAL)
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing external thoracotomy devices lack integrated channels in cardiac surgery, requiring the introduction of additional gas perfusion and suction equipment, increasing operational complexity and affecting surgical efficiency. Furthermore, the lack of a closed exhaust system leads to blood splatter and aerosol exposure in the surgical field, endangering the health of medical staff.
Design a ventilable external chest opener that integrates an airway and uses an L-shaped instrument arm to achieve carbon dioxide perfusion and negative pressure suction. Combined with a three-way valve adjustment function, it provides a sealed connection and gas management, ensuring a clear surgical field and the safety of medical staff.
It effectively reduces the risk of air embolism in patients, reduces the concentration of smoke in the surgical field, protects the health of medical staff, and shortens the length of hospital stay for patients.
Smart Images

Figure CN224505484U_ABST
Abstract
Claims
1. An aeratable extracorporeal thoracotomy device, characterized in that, The device includes an L-shaped instrument arm (1) and a robotic arm A (3). The robotic arm A (3) is slidably connected to the L-shaped instrument arm (1). A locking device (2) is provided on the robotic arm A (3) to lock the robotic arm A (3) onto the L-shaped instrument arm (1). The L-shaped instrument arm (1) integrates an air passage. The L-shaped instrument arm (1) forms a sealed connection through a hollow claw hand baffle (6). An air source connector (7) is provided on the top of the L-shaped instrument arm (1) and communicates with the air passage.
2. The ventilatable extracorporeal thoracotomy of claim 1, wherein, The L-shaped instrument arm (1) includes instrument arm A (11) and instrument arm B (12), wherein the instrument arm B (12) is vertically connected to one end of the instrument arm A to form an L-shape.
3. The ventilatable extracorporeal thoracotomy of claim 2, wherein, The instrument arm A (11) includes a toothed meshing section, which forms a 0-90° angle locking mechanism with the mechanical arm A (3) through the locking device (2); The locking device (2) includes a crank (21) and a shaft (22). The robotic arm A (3) is provided with a double-hole positioning structure and forms a rotating pair with the shaft (22). The crank (21) is detachably connected to the shaft (22) through a threaded interface.
4. The ventilatable extracorporeal thoracotomy of claim 2, wherein, The hollow claw hand baffle (6) includes a connector with a check plug, and the hollow claw hand baffle (6) is fixedly connected to the instrument arm B (12) through the connector.
5. The ventilatable extracorporeal thoracotomy of claim 1, wherein, The robotic arm A (3) is provided with two connection holes. The claw hand baffle (4) is fixedly connected to the robotic arm A (3) through the connection joint and is also fixed by the fixed baffle A (5).
6. The ventilatable extracorporeal thoracotomy of claim 1, wherein, The gas source connector (7) is connected to the pipeline (8), which includes a main pipe (81). The gas source connector (7) is connected to one end of the main pipe (81), and the other end of the main pipe (81) is connected to one of the valve ports of a three-way valve (82). The other two valve ports of the three-way valve (82) are respectively connected to the gas source pipe (83) and the negative pressure pipe (84).