# US 2026/0090845 A1 · Laparoscopic access device with real-time measurements

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- Number: US 2026/0090845 A1
- Document ID: US20260090845A1
- Status: Published application
- Kind: A1
- Application number: 19/413,896
- Filed: 2025-12-09
- Published: 2026-04-02
- Earliest claimed: 2021-02-12
- Assignees: Northgate Technologies Inc.
- Applicants: Northgate Technologies Inc.
- Inventors: Jacob M. Bumpus
- Web page: https://patentgrep.com/patent/US20260090845A1

## CPC

- A61B 17/3474: {Insufflating needles, e.g. Veress needles}
- A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B 1/00154: {using guiding arrangements for insertion}
- A61B 1/3132: {for laparoscopy}
- A61B 17/3496: {Protecting sleeves or inner probes; Retractable tips (for protecting body piercing guide needles A61M25/0612)}
- A61B 34/30: Surgical robots
- A61B 34/35: for telesurgery
- A61B 34/76: {Manipulators having means for providing feel, e.g. force or tactile feedback}
- A61B 2017/00022: {Sensing or detecting at the treatment site}
- A61B 2017/00075: {Motion}
- A61B 2034/2046: {Tracking techniques}
- A61B 2090/061: {for measuring dimensions, e.g. length}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

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.

## Claims

### Claim at position 1

-10. (canceled)

### Claim 11

A method for use in performing a laparoscopic surgical operation, the method comprising:
inserting a laparoscopic access device, the laparoscopic device having an insertion tube comprising an outer sheath slidably connected to an inner sheath, into an abdominal wall of a patient;
while inserting the laparoscopic access device:
automatically monitoring a displacement of the outer sheath relative to the inner sheath;
automatically monitoring, with at least one inertial measurement sensor embedded into the laparoscopic access device, an orientation and an acceleration of the laparoscopic access device;
transmitting to a controller in communication with the laparoscopic access device, in real-time, data relating to the monitored displacement, orientation and acceleration; and
providing feedback to a user of the laparoscopic access device regarding positioning of the laparoscopic access device based on the transmitted data.

### Claim 12 (depends on 11)

The method of claim 11, wherein providing feedback comprises presenting instructions to the user of the laparoscopic access device regarding ceasing movement of the laparoscopic access device.

### Claim 13 (depends on 11)

The method of claim 11, wherein providing feedback comprises generating a haptic response via a gripping portion on an external portion of the laparoscopic access device.

### Claim 14 (depends on 11)

The method of claim 11, further comprising storing the real-time data and training a machine learning model regarding guiding a user for a desired positioning of the laparoscopic access device based on the stored real-time data.

### Claim 15 (depends on 11)

The method of claim 11, further comprising adjusting an insufflation gas flow through a lumen of the laparoscopic access device in response to a pressure sensed at a gas port of the laparoscopic access device.

### Claim 16 (depends on 11)

The method of claim 11, wherein inserting the laparoscopic access device comprises a user manually inserting the laparoscopic access device.

### Claim 17 (depends on 11)

The method of claim 11, wherein inserting the laparoscopic access device comprises a robotically controlled mechanical actuator inserting the laparoscopic access device.

### Claim 18 (depends on 11)

The method of claim 11, wherein automatically monitoring a displacement of the outer sheath relative to the inner sheath comprises detecting the displacement via at least one optical sensor embedded on the laparoscopic access device.

### Claim 19 (depends on 11)

The method of claim 11, wherein automatically monitoring, with at least one inertial measurement sensor embedded into the laparoscopic access device, an orientation and an acceleration of the laparoscopic access device, comprises monitoring the orientation and acceleration with one or more accelerometer, gyroscope and/or magnetometer sensors positioned toward the proximal end of the laparoscopic access device.

### Claim 20 (depends on 11)

The method of claim 11, wherein:
automatically monitoring automatically monitoring, with at least one inertial measurement sensor embedded into the laparoscopic access device, an orientation and an acceleration of the laparoscopic access device, comprises monitoring the orientation and acceleration with one or more accelerometer, gyroscope and/or magnetometer sensors positioned in the gripping portion the laparoscopic access device; and
transmitting to the controller comprises transmitting the data in real-time via a wireless transmitter of the laparoscopic access device.