Prosecution Insights
Last updated: April 19, 2026
Application No. 17/891,670

SURGICAL UPPER COMPUTER FOR TOTAL KNEE ARTHROPLASTY, AND TOTAL KNEE ARTHROPLASTY SYSTEM

Non-Final OA §112
Filed
Aug 19, 2022
Examiner
SHIRSAT, MARCELA
Art Unit
3775
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Tinavi Medical Technologies Co. Ltd.
OA Round
3 (Non-Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
3y 2m
To Grant
94%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
467 granted / 641 resolved
+2.9% vs TC avg
Strong +21% interview lift
Without
With
+20.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
33 currently pending
Career history
674
Total Applications
across all art units

Statute-Specific Performance

§101
4.9%
-35.1% vs TC avg
§103
40.8%
+0.8% vs TC avg
§102
24.3%
-15.7% vs TC avg
§112
23.3%
-16.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 641 resolved cases

Office Action

§112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 1/16/26 has been entered. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 11 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 11 is rejected as indefinite for the recitation of “a fourth operating mode” in lines 2 and 3, “a fourth interactive interface” in line 4, “fourth information to be input” in lines 4 and 5. This is indefinite since in claim 1 from which it directly depends only recites “a first operating mode” in line 8, “an interactive interface” in line 10, and “first information to be input in line 10. Therefore, it is unclear how there can be a fourth of any of these items listed above when there is no recitation of a second or third of the items recited. Allowable Subject Matter Claim 1-7 and 13 are allowed. The closest prior art of record are Todorov et al (US Patent Pub. 20160278754A1) and Plaskos et al (US Patent 10285683). Both of these references disclose the use of a computer aided system utilizing a butting member and a push plate to apply a force between the femoral and tibial bones and exhibiting the data to the user. However, the references do not recite a first set of multiple medial and lateral pushing force and gap combinations and acquiring a relationship data between the two; and then controlling the butting member and push plate in the gap between the femur and tibia to acquire a second set of multiple medial and lateral pushing force and gap combinations and acquiring a second set of relationship data between the two, and displaying the sets of data. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARCELA I SHIRSAT whose telephone number is (571)270-5269. The examiner can normally be reached M-F 9:00am-5:30pm MST. 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, Kevin Truong can be reached at 571-272-4705. 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. /MARCELA I. SHIRSAT/ Primary Examiner, Art Unit 3775
Read full office action

Prosecution Timeline

Aug 19, 2022
Application Filed
Jun 09, 2025
Non-Final Rejection — §112
Sep 10, 2025
Response Filed
Oct 10, 2025
Final Rejection — §112
Jan 16, 2026
Request for Continued Examination
Feb 18, 2026
Response after Non-Final Action
Feb 19, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594170
COMPUTER-IMPLEMENTED SURGICAL PLANNING BASED ON BONE LOSS DURING ORTHOPEDIC REVISION SURGERY
2y 5m to grant Granted Apr 07, 2026
Patent 12582428
A CLAMP AND CABLE
2y 5m to grant Granted Mar 24, 2026
Patent 12582318
ILLUMINATION UNIT AND MEDICAL IMAGING SYSTEM FOR FLUORESCENCE IMAGING IN OPEN SURGERY
2y 5m to grant Granted Mar 24, 2026
Patent 12575839
SYSTEMS AND METHODS FOR BONE FIXATION
2y 5m to grant Granted Mar 17, 2026
Patent 12569285
DYNAMIC COMPRESSION DEVICES AND PROCESSES FOR MAKING AND USING SAME
2y 5m to grant Granted Mar 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
73%
Grant Probability
94%
With Interview (+20.9%)
3y 2m
Median Time to Grant
High
PTA Risk
Based on 641 resolved cases by this examiner. Grant probability derived from career allow rate.

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