9 results about "Pneumoperitoneum needle" patented technology

A surgical access device, such as in the form of a Veress needle or trocar / obturator, for use in providing access to a patient in a surgical setting is disclosed. The surgical access device incorporates one or more sensors to provide real-time data usable to evaluate an insertion position of the surgical access device and provide feedback to a live user or robotic insertion device. Additionally, a system and method for adjusting the flow of insufflation gas based on the real-time data and a sensed pressure at the surgical access device is described.

The utility model discloses a multifunctional pneumoperitoneum needle, and belongs to the field of medical instruments. Comprising a handle which is provided with an air inlet; the needle sheath is arranged on the handle; the needle core is arranged in the needle sheath, and one end of the needle core extends out of the needle sheath and is provided with a side hole; the handle assembly is used for controlling the length of the needle sheath; the handle assembly comprises a control cavity formed in the handle, a control block is arranged in the control cavity in a sliding mode, the control block is arranged on the needle sheath in a sleeving mode and fixedly connected with the needle sheath, the handle is rotationally connected with a screw rod, one end of the screw rod is inserted into the control cavity, and one end of the screw rod penetrates through the control block and is in threaded connection with the control block. The multifunctional pneumoperitoneum needle has the beneficial effect that the length of the multifunctional pneumoperitoneum needle can be conveniently adjusted.

The utility model belongs to the technical field of medical instruments, particularly relates to an efficient air interchanger for gastrointestinal surgery, and aims to solve the problems of low air interchange efficiency, large air pressure fluctuation, potential safety hazards and the like in the prior art provided by the background technology, and adopts the following scheme that the efficient air interchanger comprises an air bleeding mechanism, and an air recovery mechanism is arranged on one side of the air bleeding mechanism; and a pneumoperitoneum needle is arranged between the deflation mechanism and the gas recovery mechanism. The multi-channel gas conveying pipe is adopted, carbon dioxide gas can be evenly conveyed to all parts of the abdominal cavity, the gas exchange efficiency is effectively improved, a clear operation view is obtained, the gas exchange efficiency is improved, the pressure sensor and the flow controller are adopted, the gas pressure can be monitored and adjusted in real time, and the stable pneumoperitoneum environment is maintained; and the gas filter and the gas recovery device are adopted, so that gas can be effectively filtered and purified, smog and bacteria generated in the operation process are prevented from polluting the operation environment, and the infection risk is reduced.

This invention relates to the field of surgical instruments, and particularly to a pneumoperitoneum needle for laparoscopic surgery and its control method. The pneumoperitoneum needle and its control method provided by this invention, during the puncture phase, activate the electromagnet cylinder for forward operation. The electromagnet cylinder drives the puncture needle tube forward and the inner core backward, ensuring the inner core does not obstruct the puncture needle's insertion. After puncture, the resistance to the puncture needle tube decreases, the pressure sensor's data increases, and the control unit activates the electromagnet cylinder for reverse operation. The electromagnet cylinder drives the puncture needle tube backward and the inner core forward, causing the puncture needle tube to retract instantly and the inner core to extend out, avoiding damage to organs. This method is rapid and efficient, while the interaction between the puncture needle tube and the inner core creates redundancy. When the control unit or the electromagnet cylinder fails to operate, the elastic element can control the inner core in a conventional manner, ensuring a safe puncture process for the pneumoperitoneum needle in laparoscopic surgery.

The utility model belongs to the technical field of pneumoperitoneum needles, and provides a multifunctional pneumoperitoneum needle with a limiting protection function. The puncturing mechanism is fixedly arranged at the bottom of the main body frame; the limiting mechanism is fixedly arranged on the puncture mechanism and used for limiting the use depth of the puncture mechanism; the adjusting mechanism is arranged in the main body frame; the control mechanism is fixedly arranged at the top of the main body frame; the pneumoperitoneum needle is fixedly arranged at the bottom of the main body frame, and the endoscope crochet hook is slidably connected into the pneumoperitoneum needle, so that the pneumoperitoneum needle can be matched with the endoscope crochet hook to be used for closing pneumoperitoneum and can also be used for an endoscope lower crochet hook, and meanwhile, the limiting protection plate is arranged on the outer wall of the pneumoperitoneum needle; the limiting protection plate can be stably fixed to the outer wall of the pneumoperitoneum needle for limiting use, the puncture depth of the pneumoperitoneum needle and the endoscope hook needle can be conveniently adjusted, the situation that the pneumoperitoneum needle and the endoscope hook needle puncture too deep and hurt internal organs is prevented, and the fixing effect can be achieved when the abdominal cavity is inflated.

The endoscope pneumoperitoneum machine for the minimally invasive surgery comprises an endoscope pneumoperitoneum machine body, a pipe storage cavity is formed in the lower end of the endoscope pneumoperitoneum machine body, the inner wall of the pipe storage cavity is connected with a pneumoperitoneum pipe through an inner connector, and one end of the pneumoperitoneum pipe penetrates through a threading hole in the front end of the endoscope pneumoperitoneum machine body. A pneumoperitoneum needle is further arranged at one end of the pneumoperitoneum tube through a connecting base, a reinforcing piece is arranged on the outer side of the pneumoperitoneum tube, an electric take-up and pay-off mechanism is arranged in the threading hole and comprises a connecting shaft rotationally arranged in the threading hole, and the connecting shaft and the reinforcing piece are in transmission connection through a gear and rack set. According to the endoscope pneumoperitoneum machine, the tube storage cavity is formed in the lower end of the endoscope pneumoperitoneum machine body, the pneumoperitoneum tube is connected to the inner wall of the tube storage cavity through the inner connector, and therefore the tube storage cavity can be used for collecting and storing the unused pneumoperitoneum tubes; more convenience and safety are realized.

The utility model relates to medical instrument technical field especially, more particularly to a kind of gas-tight interface falling off of anti-ventilation gas-tight needle, including gas-tight needle sleeve, gas-tight needle inner core, valve, fixed nut, vent connector and gas-tight tube, gas-tight needle sleeve is hollow structure, gas-tight needle inner core is slidably inserted gas-tight needle sleeve inside, valve is installed in gas-tight needle inner core top, vent connector is connected in gas-tight needle inner core top, vent connector is rotated into gas-tight tube from below to top, fixed nut is set on gas-tight needle inner core top handle, fixed nut and valve position are opposite.The utility model is locked by the locking structure of clamping groove, guide rod, wedge block and spring, effectively prevent gas-tight needle interface from loosening or falling off due to external force, vibration or abrasion, improve the stability of interface;The design of contact plate to push wedge block outward along guide rod is convenient for unlocking and taking off interface, improve operation convenience.

The present invention refers to an improved pneumoperitoneum needle device comprising an external needle formed by a sharp needle and an external needle capsule, and an internal needle positioned inside the external needle. The internal needle has an open lower portion, and an upper portion on which a spring is positioned, configured to promote the retraction and expansion of the internal needle. The pneumoperitoneum needle device, according to the present invention, further comprises a capsule connected to the external needle and a valve configured to control the passage of fluid through the device. There is also a top housing connected to the capsule, wherein the top housing stores an embedded electronic control system. The embedded electronic control system is connected to a pressure sensing mechanism and a visual feedback mechanism of the detected pressure. In addition, the device comprises a rod positioned through the capsule inside the internal needle. Said rod being configured to transmit the pressure exerted on the human tissue to the pressure sensing mechanism.

The invention relates to the field of surgical instruments, in particular to a pneumoperitoneum needle for laparoscopic surgery and a control method of the pneumoperitoneum needle. According to the pneumoperitoneum needle for the laparoscopic surgery and the control method of the pneumoperitoneum needle, in the puncture stage, the control part starts the electromagnet barrel to work in the forward direction, the electromagnet barrel drives the puncture needle tube forwards and drives the inner core part backwards, and the inner core part cannot block the puncture action of the puncture needle tube; after puncture is completed, resistance borne by the puncture needle tube is reduced, sensing data of the pressure sensor is increased, the control part starts the electromagnet barrel to work reversely, the electromagnet barrel drives the puncture needle tube backwards and drives the inner core part forwards, the puncture needle tube is withdrawn instantly, the inner core part stretches out of the puncture needle tube, and harm to visceral organs is avoided; meanwhile, the puncture needle tube and the inner core part act mutually to form redundancy; when the control part or the electromagnet cylinder cannot work, the elastic piece can control the inner core part in a traditional mode, and it is guaranteed that the pneumoperitoneum needle for the laparoscopic surgery can complete the safe puncture process.