System providing improved visibility for minimally invasive surgery systems

Patent metadata

Field	Value
Publication number	US-12426777-B2
Application number	US-202418662478-A
Country	US
Kind code	B2
Filing date	May 13, 2024
Priority date	May 7, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A modular access medical system configured to enable a surgeon to conduct a medical procedure in fluid contained within a defined space is disclosed. As such, the system increases visibility to an operating surgeon by eliminating smoke and other vapors formed during use of a medical instrument at the surgical site. The modular access medical system may be formed from a distal end of a cannula configured to be placed into contact with tissue such that fluid can be administered within the cannula and retained therein to facilitate a surgical procedure to be conducted via one or more instruments extending through fluid contained within the cannula.

First claim

We claim:

1. A method of using an instrument within a patient via a modular access medical system, comprising:
obtaining access to a target surgical site within a patient;
positioning at least a portion of the modular access medical system within the patient, wherein the modular access medical system, comprises:
a housing having a working channel, a proximal opening providing access to the working channel, and a distal opening providing access to the working channel;
a cannula formed from at least one detachable segment and extending distally from the housing and forming a channel extending therethrough for receiving the instrument, whereby the channel in the cannula is aligned with the working channel of the housing;
wherein a distal end of the cannula is configured to be placed into contact with tissue such that fluid can be administered within the cannula and retained therein to facilitate a surgical procedure to be conducted via the instrument extending through fluid contained within the cannula;
placing the distal end of the cannula in contact with tissue of a patient to seal the distal end;
filling the cannula with fluid such that an upper surface of the fluid is aligned with a lower edge of an aspiration port in the housing;
inserting the instrument into the fluid; and
using the instrument on the patient in the fluid contained in the cannula.

2. The method of claim 1 , wherein the at least one detachable segment is formed from a plurality of detachable segments coupled together, wherein the plurality of detachable segments are different lengths.

3. The method of claim 1 , wherein inserting the instrument into the fluid comprises inserting at least a portion of the instrument through at least one dam positioned in the housing to retain the fluids in the working channel of the housing.

4. The method of claim 1 , wherein inserting the instrument into the fluid comprises using a positioning system on the at least one detachable segment to assist in positioning the distal end of the at least one detachable segment within a patient.

5. The method of claim 1 , wherein filling the cannula with fluid comprises filling the cannula with fluid via an enhanced fluid exchange section of an inflow port.

6. The method of claim 1 , wherein inserting the instrument into the fluid comprises retaining the instrument in place via an instrument securement system.

7. The method of claim 1 , wherein inserting the instrument into the fluid comprises retaining a camera in position via a camera positioning system.

8. A method of using an instrument within a patient via a modular access medical system, comprising:
obtaining access to a target surgical site within a patient;
positioning at least a portion of the modular access medical system within the patient, wherein the modular access medical system, comprises:
a housing having a working channel, a proximal opening providing access to the working channel, and a distal opening providing access to the working channel;
a cannula extending distally from the housing and forming a channel extending therethrough for receiving the instrument, whereby the channel in the cannula is aligned with the working channel of the housing;
wherein a distal end of the cannula is configured to be placed into contact with tissue such that fluid can be administered within the cannula and retained therein to facilitate a surgical procedure to be conducted via the instrument extending through fluid contained within the cannula;
placing the distal end of the cannula in contact with tissue of a patient to seal the distal end;
filling the cannula with fluid such that an upper surface of the fluid is level with a lower edge of an aspiration port;
inserting the instrument into the fluid; and
using the instrument on the patient in the fluid contained in the cannula.

9. The method of claim 8 , wherein the aspiration port is positioned in the housing.

10. The method of claim 8 , wherein the cannula extending distally from the housing is formed a plurality of detachable segments coupled together, wherein the plurality of detachable segments are different lengths.

Assignees

• Arthrex Inc

Inventors

• Dreyfuss Peter
• Kemp Zachary A
• Adamson Tim E
• Gallizzi Michael
• Jensen Wade K
• Karnes G Joshua
• Noble Shane J

Classifications

• A61B17/3423

  Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247) · CPC title

• A61B17/3439

  with means for changing the inner diameter of the cannula, e.g. expandable (A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662) · CPC title

• A61B1/00105 Primary

  characterised by modular construction · CPC title

• A61B2217/005

  with suction drainage system · CPC title

• A61B1/042

  characterised by a proximal camera, e.g. a CCD camera · CPC title