Oximetry Device with Laparoscopic Extension

Patent metadata

Field	Value
Publication number	US-2024188860-A1
Application number	US-202418582556-A
Country	US
Kind code	A1
Filing date	Feb 20, 2024
Priority date	Jul 18, 2016
Publication date	Jun 13, 2024
Grant date	—

Abstract

A laparoscopic medical device includes an oximeter sensor at its tip, which allows the making of oxygen saturation measurements laparoscopically. The device can be a unitary design, wherein a laparoscopic element includes electronics for the oximeter sensor at a distal end (e.g., opposite the tip). The device can be a multiple piece design (e.g., two-piece design), where some electronics is in a separate housing from the laparoscopic element, and the pieces (or portions) are removably connected together. The laparoscopic element can be removed and disposed of; so, the electronics can be reused multiple times with replacement laparoscopic elements. The electronics can include a processing unit for control, computation, or display, or any combination of these. However, in an implementation, the electronics can connect wirelessly to other electronics (e.g., another processing unit) for further control, computation, or display, or any combination of these.

First claim

The invention claimed is:

1 . A device comprising:
a first portion comprising a sensor head, wherein the sensor head comprises a first structure and a second structure, the first structure is an emitter, and the second structure is a detector; and a second portion, coupled to the first portion, wherein the second portion comprises a first enclosure comprising an analog-to-digital converter circuit, coupled to the second structure of the sensor head, an interface circuit, coupled to the analog-to-digital converter circuit, and a battery, coupled to the analog-to-digital converter and interface circuits.

2 . The device of claim 1 wherein the second portion is fixedly coupled to the first portion.

3 . The device of claim 1 wherein the first portion comprises a first connector, the second portion comprises a second connector, and the second portion is coupled to the first portion by mating of the first connector to the second connector, and when the first and second first connectors are mated, the first and second portions are held via the connectors in fixed positions relative to each other.

4 . The device of claim 1 wherein first portion comprises an elongated laparoscopic element having a stainless steel outer surface.

5 . The device of claim 1 wherein the interior tubular space, between the proximal end and distal end, comprises a uniform cross-sectional dimension.

6 . The device of claim 1 wherein the first enclosure comprises a light source, coupled to the first structure and the battery.

7 . The device of claim 1 wherein the first enclosure comprises a processing circuit, coupled to the analog-to-digital converter and the battery, wherein the interface circuit is a first wireless transceiver circuit, and the device comprises
a third portion comprising a second enclosure, separate from the first enclosure, wherein the second enclosure comprises
a second wireless transceiver circuit, which is wirelessly coupled to the first wireless transceiver circuit, and
a display, coupled to the processing circuit through the second wireless transceiver circuit and a power source separate from the battery of the first enclosure.

8 . The device of claim 1 wherein first enclosure comprises
a processing circuit, coupled to the analog-to-digital converter and the battery, wherein the interface circuit is a first wired transceiver circuit, and the device comprises
a third portion comprising a second enclosure, separate from the first enclosure, wherein the second enclosure comprises
a second wired transceiver circuit, which is coupled to the first wired transceiver circuit via a cable, and
a display, coupled to the processing circuit through the second wired transceiver circuit and a power source separate from the battery of the first enclosure.

9 . The device of claim 1 wherein the first enclosure comprises
a processing circuit, coupled to the analog-to-digital converter and the battery, and
a display, coupled to the processing circuit through the interface circuit and coupled to the battery.

10 . The device of claim 1 wherein the detector of the second structure comprises a photodetector, and the first portion comprises
a current-to-voltage converter circuit, within the interior tubular space of the laparoscopic element, wherein the current-to-voltage converter circuit is coupled to the second structure, and
electrical conductors that extend from the current-to-voltage converter circuit through the interior tubular space of the laparoscopic element to couple to the analog-to-digital converter circuit.

11 . The device of claim 1 wherein the detector of the second structure comprises an optical fiber, and the second portion comprises
a photodetector, wherein the optical fiber extends through the interior tubular space of the laparoscopic element to couple to the photodetector, and
a current-to-voltage converter circuit, coupled between the photodetector and the analog-to-digital converter circuit.

12 . The device of claim 4 wherein the detector of the second structure comprises a photodetector, and the second portion comprises
a current-to-voltage converter circuit, coupled to the analog-to-digital converter circuit, wherein the first portion comprises
electrical conductors that extend from the photodetector through the interior tubular space of the laparoscopic element to couple to the current-to-voltage converter circuit of the second portion.

13 . The device of claim 1 wherein the detector of the second structure comprises a photodetector, and the first portion comprises
a printed circuit board comprising a current-to-voltage converter circuit coupled to the photodetector, wherein the printed circuit board comprises a first surface and second surface on which components of the current-to-voltage converter circuit are formed, and a plane of the first and second surfaces are about parallel with the first direction, and
first electrical conductors, coupled to the current-to-voltage converter circuit, wherein the first electrical conductors extend from a first end of the printed circuit board to couple to the analog-to-digital converter circuit.

14 . The device of claim 13 wherein first portion comprises an optical fiber, which is coupled to the first structure.

15 . The device of claim 13 within the first portion comprises second electrical conductors, coupled to the current-to-voltage converter circuit, wherein the second electrical conductors extend from a second end of the printed circuit board to couple to the photodetector.

16 . The device of claim 15 wherein power from the battery of the second portion is supplied through the first electrical conductors to the current-to-voltage converter circuit and through the second electrical conductors to the photodetector.

17 . The device of claim 16 comprising a third structure, wherein the third structure is a detector,
a first distance is between the first structure and the second structure,
a second distance is between the first structure and the third structure, and
the first distance is different from the second distance.

18 . The device of claim 13 wherein the printed circuit board is positioned in an interior space of the first element to be closer to the sensor head than proximal end.

19 . A device comprising:
a first portion comprising a sensor head, wherein the sensor head comprises a first structure and a second structure, the first structure is an emitter, and the second structure is a detector; a second portion, coupled to the first portion at the proximal end of the laparoscopic element, wherein the second portion comprises a first enclosure comprising an analog-to-digital converter circuit, coupled to the second structure of the sensor head, an interface circuit, coupled to the analog-to-digital converter circuit, wherein the interface circuit comprises a first wireless transceiver circuit, and a battery, coupled to the analog-to-digital converter and interface circuits; and a third portion comprising a second enclosure, separate from the first enclosure, wherein the second enclosure comprises a second wireless transceiver circuit, which is wirelessly coupled to the first wireless transceiver circuit, a processing circuit, coupled through the second wireless transceiver circuit to the analog-to-digital converter circuit, and a display, coupled to the processing circuit and a power source separate from the battery of the first enclosure.

20 . A device comprising:
a fir

Assignees

• Vioptix Inc

Inventors

• Bechtel Kate Leeann
• Harris Todd Louis
• Soloman Edward Gerald
• Sun Winston
• Baldwin Alan
• Coleridge Scott E
• Lonsinger Mark

Classifications

• A61B2560/0223

  of calibration, e.g. protocols for calibrating sensors · CPC title

• A61B2560/0214

  of power generation or supply · CPC title

• A61B2505/05

  Surgical care · CPC title

• A61B5/7445

  Display arrangements, e.g. multiple display units · CPC title

• A61B5/7278

  Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals · CPC title