JPWO2020036499A5

JPWO2020036499A5 -

Info

Publication number: JPWO2020036499A5
Application number: JP2021507614A
Authority: JP
Publication date: 2022-11-15
Anticipated expiration: 2039-08-16

Claims

A surgical cannula for supplying insufflated gas to a surgical cavity and for providing a passageway for insertion of one or more medical devices, comprising:
a cannula upper housing including an opening;
an elongate shaft extending from the cannula upper housing, the shaft defining a hollow passageway for supplying the insufflation gas to the surgical cavity, the passageway also for receiving a medical instrument; an elongated shaft, comprising:
a heating element disposed on or within at least a portion of the cannula along the longitudinal axis of the cannula;
including
The heating element transfers heat to the insufflation gas passing through a portion of the cannula and/or the medical device to raise the temperature of the insufflation gas and/or the device and reduce condensation in the insufflation gas. configured to reduce and/or prevent and/or reduce and/or prevent condensation on the medical device;
surgical cannula.

A surgical cannula for supplying insufflated gas to a surgical cavity and for providing a passageway for insertion of one or more medical devices, comprising:
a cannula upper housing including an opening;
an elongate shaft extending from the cannula upper housing, the shaft defining a hollow passageway for supplying the insufflation gas to the surgical cavity, the passageway also for receiving a medical instrument; an elongated shaft, comprising:
a heating element disposed on or within at least a portion of the cannula along the longitudinal axis of the cannula;
including
The heating element raises the temperature of the insufflation gas passing through the cannula and/or the device above a dew point to reduce and/or prevent condensation of the gas and/or on the medical device. configured to reduce and/or prevent condensation;
surgical cannula.

A surgical cannula according to claim 1 or 2, wherein the heating element extends the length of at least a portion of the elongate shaft.

The surgical cannula of Claim 3, wherein the heating element is positioned within the wall of the elongate shaft.

The surgical cannula of any one of claims 1-4, wherein the heating element is isolated from the insufflation gas such that the heating element is out of the insufflation gas flow path.

The surgery of any one of claims 1-5, wherein the heating element extends at least substantially circumferentially around the hollow passageway of the elongate shaft or the opening of the cannula upper housing. cannula for.

7. Any of claims 1-6, comprising one or more wires in electrical communication with the heating element, the one or more wires extending along and/or through the wall of the cannula. A surgical cannula according to claim 1.

A surgical cannula according to any preceding claim, wherein the heating element is powered by a humidifier controller, an independent controller, or a pneumoperitoneum controller.

The surgical cannula of any one of claims 1-8, wherein the elongate shaft includes a second hollow passageway.

10. The method of claim 9, including a second heating element extending around the second hollow passageway, or wherein the second hollow passageway is offset from the hollow passageway and adjacent to a portion of the heating element. surgical cannula.

The surgical cannula of any one of claims 1-8, wherein the elongate shaft includes a plurality of lumens.

The surgical cannula of claim 11, wherein the heating element is disposed within one or more lumens of the plurality of lumens to heat gas passing through the one or more lumens.

13. The surgical cannula of claim 12, wherein the elongate shaft includes two lumens and the heating elements include first and second heating elements respectively disposed within both lumens. .

14. The surgical cannula of claim 13, wherein the first heating element heats insufflation gas and the second heating element heats expelled gas and/or smoke.

15. Any one of claims 1 to 14, including a filter disposed on or within the cannula, or a filter module removably coupled to or contained within the surgical cannula. Surgical cannula as described.

16. The surgical cannula of claim 15, wherein the heating element is arranged to heat the filter, or is arranged in contact with or extends into the filter module.

A surgical system for supplying insufflated gas to a surgical cavity, comprising:
a humidifier in fluid communication with a gas supply configured to provide the insufflation gas and configured to humidify the insufflation gas received from the gas supply;
a surgical cannula according to any one of claims 1 to 16;
a gas delivery tube configured to extend between the humidifier and the surgical cannula and configured to be in fluid communication with the humidifier and the surgical cannula, respectively;
including
the gas delivery tube is configured to be in electrical communication with the humidifier and the surgical cannula, respectively;
the gas delivery tube is configured to direct the insufflation gas to the surgical cannula and to direct electrical current from the humidifier to the heating element within the surgical cannula;
surgical system.

18. The surgical system of claim 17, wherein said surgical system comprises said gas supply.