IP Library › Granted Patent US 12,295,677
Granted Patent B2
US 12,295,677 · App. 17/540,602 · Granted May 13, 2025

End-effectors for surgical robotic systems having sealed optical components

Inventors: James Cascarano (Cambridge, MA); Justin Larson (Reading, MA); Zachary Olenio (Derry, NH); Sritam Parashar Rout (Dracut, MA); Norbert Johnson (North Andover, MA)
Assignee: Globus Medical, Inc.
A61B34/30B25J15/0019B25J19/021A61B2034/2057A61B2034/2072A61B2090/3983
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Quick Facts
Patent No.
US 12,295,677
App. No.
17/540,602
Filed
Dec 2, 2021
Granted
May 13, 2025
Kind
B2
Art Unit
3792
USPC
606/1
Abstract

An end-effector for a surgical robot system may include an end-effector body and an optical sub-assembly. The optical sub-assembly may include a housing coupled to the end-effector body, the housing including a threaded portion. The optical sub-assembly may further include a window that is transparent to a predetermined range of light radiation wavelengths. The optical sub-assembly may further include a gasket disposed between the housing and the window. The optical sub-assembly may further include a threaded ring disposed over the window and threadedly engaging the threaded portion of the housing, the threaded ring compressing the gasket between the window and the housing to form a seal between the window and the housing. The optical sub-assembly may further include a light emitter configured to emit light in the predetermined range of light radiation wavelengths through the window.

Claims (51)

1. A ruggedized auto-clavable end-effector for a surgical robot system, comprising:

an end-effector body configured to guide a surgical instrument and adapted to attach to a robotic arm via a mounting collar, the mounting collar configured to be secured to the end-effector body; the end effector further including:

an optical sub-assembly received in the end-effector body and including:

a housing coupled to the end-effector body, the housing comprising an engagement portion;

a retainer cover engaging the engagement portion of the housing and defining a cover hole therethrough;

a window that is transparent to a predetermined range of light radiation wave lengths, and being disposed below the retainer cover;

a gasket disposed below the window and between the end-effector body and the window to define an internal cavity of the end effector body, the gasket further including a gasket hole;

wherein the retainer cover compresses the gasket between the window and the end effector body to form a seal between the window and the end effector body; and

a tracking marker disposed in the internal cavity, the tracking marker configured to be tracked by a navigation camera system, the tracking marker configured to emit light through the gasket hole, the window, and the cover hole,

wherein the mounting collar, when secured to the end effector body is secured to the compress a plurality of O-rings in corresponding O-ring seats to protect the electronic components without any potting material and the optical sub-assembly,

wherein the retainer cover is threadably engaged to the engagement portion of the housing,

wherein the seal formed by the retainer cover compressing the gasket between the window and the end effector body forms a cavity seal that atmospherically isolates the internal cavity from an atmosphere outside the end-effector body.

2. The end-effector of claim 1 , wherein the window includes a sapphire window.

3. The end-effector of claim 1 , wherein the tracking marker is an infrared (IR) emitter, and wherein the predetermined range of light radiation wavelengths is within a wavelength range of 700 nanometers to 1 millimeter.

4. The end-effector of claim 1 , wherein the optical sub-assembly comprises a plurality of optical sub-assemblies received in a plurality of recesses in the end effector body.

5. The end-effector of claim 1 , wherein the seal formed by the retainer cover compressing the gasket between the window and the end effector body is a moisture-proof seal.

6. The end-effector of claim 1 , wherein the seal formed by the retainer cover compressing the gasket between the window and the end effector body forms a cavity seal that atmospherically isolates the internal cavity from an atmosphere outside the end-effector.

7. The end-effector of claim 1 , wherein:

the end effector body includes an inwardly facing thread; and

the retainer cover includes an outwardly facing thread that is complementary to the inwardly facing thread of the end effector body.

8. The end-effector of claim 1 , wherein:

the retainer cover includes an inwardly facing thread, and

the end effector body includes an outwardly facing thread that is complementary to the inwardly facing thread of the retainer cover.

9. The end-effector of claim 1 , wherein the end effector body includes a tube through which the surgical instrument is received.

10. A ruggedized auto-clavable end-effector for a surgical robot system, comprising:

an end-effector body configured to guide a surgical instrument and adapted to attach to a robotic arm, the end effector including:

an optical sub-assembly received in the end-effector body and including:

a window that is transparent to a predetermined range of light radiation wavelengths;

a gasket disposed below the window and between the end-effector body and the window to define an internal cavity of the end effector body, the gasket further including a gasket hole;

a retainer cover disposed over the window and compressing the gasket between the window and the end effector body to form a seal between the window and the end effector body, the retainer cover including a cover hole;

a light emitter disposed in the internal cavity configured to emit light through the gasket hole, the window, and the cover hole; and

a mounting collar, the mounting collar configured to be secured to the end-effector body;

wherein the mounting collar, when secured to the end effector body is secured to the compress a plurality of O-rings in corresponding O-ring seats to protect the electronic components without any potting material and the optical sub-assembly,

wherein an interior portion of the end effector body includes electronic components coupled to the light transmitter and the entire interior portion of the end effector body is free of any potting material,

wherein the retainer cover is threadably engaged to the housing

wherein the seal formed by the retaining cover compressing the gasket between the window and the end effector body forms a cavity seal that atmospherically isolates the internal cavity from an atmosphere outside the end-effector body.

11. The end-effector of claim 10 , wherein the O-ring is compressible.

12. The end-effector of claim 10 , wherein the window includes a sapphire window.

13. The end-effector of claim 10 , wherein the optical sub-assembly comprises a plurality of optical sub-assemblies received in a plurality of recesses in the end effector body.

14. The end-effector of claim 10 , wherein:

the end effector body includes an inwardly facing thread; and

the retainer cover includes an outwardly facing thread that is complementary to the inwardly facing thread of the end effector body.

15. The end-effector of claim 10 , wherein:

the retainer cover includes an inwardly facing thread, and

the end effector body includes an outwardly facing thread that is complementary to the inwardly facing thread of the retainer cover.

16. The end-effector of claim 10 , wherein the end effector body includes a tube through which the surgical instrument is received.

17. The surgical robot system of claim 10 , wherein the optical sub-assembly comprises a plurality of optical sub-assemblies, and wherein, for each optical sub-assembly of the plurality of optical sub-assemblies:

the gasket includes a compressible O-ring;

the window includes a sapphire window;

the seal formed by the retainer cover compressing the gasket between the window and the end effector body is a moisture-proof seal and forms a seal that atmospherically isolates the internal cavity from an atmosphere outside the end-effector body; and

wherein the retainer cover includes an outwardly facing thread that is complementary to an inwardly facing thread of the end effector body.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2021
From: CASCARANO, JAMES; LARSON, JUSTIN; OLENIO, ZACHARY; ROUT, SRITAM PARASHAR; JOHNSON, NORBERT
To: GLOBUS MEDICAL, INC.
Reel/Frame 058269/0545 →
Continuity (2)
Continuation 16193447 · Nov 16, 2018
Related Publication 20220087756A1 · Mar 24, 2022
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