Prosecution Insights
Last updated: April 19, 2026
Application No. 18/595,803

TELESCOPING CANNULA ARM

Non-Final OA §DP
Filed
Mar 05, 2024
Examiner
SCHERBEL, TODD J
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Intuitive Surgical Operations, Inc.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
3y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
581 granted / 763 resolved
+6.1% vs TC avg
Strong +52% interview lift
Without
With
+51.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
18 currently pending
Career history
781
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
33.6%
-6.4% vs TC avg
§102
34.4%
-5.6% vs TC avg
§112
23.4%
-16.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 763 resolved cases

Office Action

§DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Objections Claims 3, 14, and 17 are objected to because of the following informalities: Claim 3, line 1-2, “wherein the extending of the cannula mount arm unwinds the spring” should read “wherein extending the cannula mount arm unwinds the spring”. Claim 14, line 1, “The system of claim 1, further comprises a damper” should read “The system of claim 1 further comprising a damper”. Claim 17, line 1-2, “wherein the extending of the cannula mount arm unwinds the spring from the spool assembly” should read “wherein extending the cannula mount arm unwinds the spring”. Appropriate correction is required. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1 and 15 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 11,950,866 (Thompson). Although the claims at issue are not identical, they are not patentably distinct from each other because Thompson claims: 1. A system comprising: a manipulator arm comprising a first link and a latch link coupled to the first link and configured to engage with a latch (claim 1); and a cannula mount arm comprising the latch (claim 1); wherein: the cannula mount arm is configured to be manually extended from the first link to an extended position (claim 1), wherein extending the cannula mount arm stores potential energy in a spring (claim 10); the latch link is configured to engage with the latch when the cannula mount arm is extended from the first link to the extended position so as to lock the cannula mount arm in the extended position (claim 1); and disengagement of the latch link from the latch results in the cannula mount arm being retracted into the first link using the potential energy stored in the spring (claim 9-10). 15. A cannula mount system comprising: a cannula dock configured to receive a cannula (claim 1); a cannula mount arm (claim 1); and a latch (claim 1); wherein: the cannula mount arm is configured to be manually extended from a first link of a manipulator arm to an extended position (claim 1), wherein extending the cannula mount arm stores potential energy in a spring (claim 10); the latch is configured to engage with a latch link of the manipulator arm when the cannula mount arm is extended from the first link to the extended position so as to lock the cannula mount arm in the extended position (claim 1); and disengagement of the latch link from the latch results in the cannula mount arm being retracted into the first link using the potential energy stored in the spring (claim 9-10). Claim 11 is rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 11,950,866 (Thompson), as applied above and further in view of US 2009/0269179 (Gale). Although the claims at issue are not identical, they are not patentably distinct from each other because: 11. Thompson claims the invention substantially as claimed as discussed above but does not claim the cannula mount arm and first link being curved. Gale teaches a system in the same field of endeavor having curved cannula mount arm (arm 4) and first link (arm 5) for the purpose of telescopically nesting curved links to arcuately extend the cannula (FIG. 1). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the cannula mount arm and first of Thompson to be curved as taught by Gale in order to telescopically nest curved links to arcuately extend the cannula. Claim 14 is rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 11,950,866 (Thompson), as applied above and further in view of US 2010/0168762 (Osawa). Although the claims at issue are not identical, they are not patentably distinct from each other because: 14. Thompson claims the invention substantially as claimed as discussed above but does not claim the system having a damper. Osawa teaches a retraction system in the same field of endeavor having a damper (FIG. 5; P0050) for the purpose of damping the rotation of an element (P0050). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the retraction system of Thompson to include a damper as taught by Osawa in order to damp the rotation of an element. Allowable Subject Matter Claim(s) 1-20 (as filed ) 05/18/2024 are free from prior art rejections under 35 U.S.C. 102/103. Claim(s) 1, 11, 14, and 15 are currently only rejected under double patenting. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TODD J SCHERBEL whose telephone number is (571)270-7085. The examiner can normally be reached Mon - Fri 9:00-6:00. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jackie Ho can be reached at 571-272-4696. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. TJ SCHERBEL Primary Examiner Art Unit 3771 /TODD J SCHERBEL/Primary Examiner, Art Unit 3771
Read full office action

Prosecution Timeline

Mar 05, 2024
Application Filed
Feb 02, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599540
Pressure Pad Headgear Device
2y 5m to grant Granted Apr 14, 2026
Patent 12599375
MEDICAL MATERIAL
2y 5m to grant Granted Apr 14, 2026
Patent 12594405
CATHETER HAVING COMPLIANT BALLOON
2y 5m to grant Granted Apr 07, 2026
Patent 12594076
SIDE-TO-END ANASTOMOTIC COUPLER
2y 5m to grant Granted Apr 07, 2026
Patent 12589014
EXPANDABLE BODY DEVICE AND METHOD OF USE
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
76%
Grant Probability
99%
With Interview (+51.8%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 763 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month