Prosecution Insights
Last updated: April 19, 2026
Application No. 18/417,975

CONTINUOUS-MOTION, LOW RADIODENSITY SURGICAL RETRACTOR FOR FACILITATING IMPROVED VISUALIZATION AND PRECISE RETRACTION OF A TISSUE OF A BODY

Final Rejection §101§102§112
Filed
Jan 19, 2024
Examiner
KU, SI MING
Art Unit
3775
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Alumina Medical LLC
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
3y 2m
To Grant
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
543 granted / 752 resolved
+2.2% vs TC avg
Strong +34% interview lift
Without
With
+33.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
52 currently pending
Career history
804
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
39.2%
-0.8% vs TC avg
§102
26.3%
-13.7% vs TC avg
§112
24.7%
-15.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 752 resolved cases

Office Action

§101 §102 §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 . Status of the Claims This Office Action is responsive to the amendment filed November 11, 2025. As directed by the amendment: Claims 1, 9, and 12 have been amended. Claims 5, 6, 8, 10, and 13 have been cancelled. Claims 1-4, 7, 9, 11, 12, and 14 are presently pending in this application. Claim Objections Claim 11 is objected to because of the following informalities: In ll. 1, the phrase “The surgical retractor of claim 10” appears to be mis-written because claim 10 has been cancelled. Appropriate correction is required. Claim Rejections - 35 USC § 112(a) The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-4, 7, 9, 11, 12, and 14 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Regarding claim 1, ll. 23-28, the phrase “the first and second legs configured to move between a closed position and a plurality of open positions such that rotation of the adjustment component in an opposite direction reduces retraction force without collapse under tissue pressure, and such that the surgical retractor is configured to permit intra-operative radiographic imaging while remaining in place without obscuring anatomical detail” renders new matter as the originally filed disclosure is silent on this feature. Applicant is suggested to cancel any new matter in order to overcome this rejection. Regarding claim 12, ll. 13-14, the phrase “such that the operative portions of the retractor remain visible to the surgeon while permitting intra-operative imaging without removal” and ll. 19-22, the phrase “to provide continuous, sub-millimeter incremental adjustment of spacing between the legs and to reduce retraction force without collapse under tissue pressure such that edges of a tissue separate or are loosened from a recent separation” renders new matter as the originally filed disclosure is silent on this feature. Applicant is suggested to cancel any new matter in order to overcome this rejection. Claims 2-4, 7, 9, 11, and 14 are rejected on being dependent on a rejected base claim. Claim Rejections - 35 USC § 112(b) 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. Claims 1-4, 7, 9, 11, 12, and 14 are 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 1 recites the limitation "the spacing" in ll. 21. There is insufficient antecedent basis for this limitation in the claim. The term “smooth” in claim 1 is a relative term which renders the claim indefinite. The term “smooth” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Regarding claim 1, ll. 23-28, the phrase “the first and second legs configured to move between a closed position and a plurality of open positions such that rotation of the adjustment component in an opposite direction reduces retraction force without collapse under tissue pressure, and such that the surgical retractor is configured to permit intra-operative radiographic imaging while remaining in place without obscuring anatomical detail” is unclear as to what is meant by the phrase. Amendment and clarification are required. Claim 12 recites the limitations "the operative portions" in ll. 13, “the surgeon” in ll. 13-14. There is insufficient antecedent basis for these limitations in this claim. Regarding claim 12, ll. 19-22, the phrase “to provide continuous, sub-millimeter incremental adjustment of spacing between the legs and to reduce retraction force without collapse under tissue pressure such that edges of a tissue separate or are loosened from a recent separation” is unclear as to what is meant by the phrase. Amendment and clarification are required. Claims 2-4, 7, 9, 11, and 14 are rejected on being dependent on a rejected base claim. Claim Rejections - 35 USC § 112(d) The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 4 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Regarding claim 4, ll. 1-2, the phrase “wherein the adjustment component comprises a knob” fails to further limit the subject matter of the claim upon which it depends, see claim 1, ll. 14-15. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Section 33(a) of the America Invents Act reads as follows: Notwithstanding any other provision of law, no patent may issue on a claim directed to or encompassing a human organism. Claims 12 and 14 are rejected under 35 U.S.C. 101 and section 33(a) of the America Invents Act as being directed to or encompassing a human organism. See also Animals - Patentability, 1077 Off. Gaz. Pat. Office 24 (April 21, 1987) (indicating that human organisms are excluded from the scope of patentable subject matter under 35 U.S.C. 101). Regarding claim 12, ll. 13-14, the phrase “such that the operative portions of the retractor remain visible to the surgeon” is directed to or encompassing a human organism. Applicant is suggested to use the language such as “adapted to/for” or configured to/for”. Claim 14 is rejected on being dependent to a rejected base claim. Response to Arguments Applicant’s arguments on pages 7-12, under 35 U.S.C. 102(a)(1) and 35 U.S.C 103, of the Remarks with respect to the references Josse, Serra, Lee have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SI MING KU whose telephone number is (571)270-5450. The examiner can normally be reached Monday-Friday, 9:30am-6pm. 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. /SI MING KU/Primary Examiner, Art Unit 3775
Read full office action

Prosecution Timeline

Jan 19, 2024
Application Filed
Jun 13, 2025
Non-Final Rejection — §101, §102, §112
Nov 11, 2025
Response Filed
Feb 25, 2026
Final Rejection — §101, §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599442
ASSISTIVE SURGICAL ROBOT FOR DISTAL HOLE LOCALIZATION IN INTRAMEDULLARY NAIL
2y 5m to grant Granted Apr 14, 2026
Patent 12594104
SCREW IMPLANTS FOR BONE FUSION
2y 5m to grant Granted Apr 07, 2026
Patent 12582453
ANTEROLATERAL CLAVICLE FRACTURE FIXATION PLATE
2y 5m to grant Granted Mar 24, 2026
Patent 12575869
COMPLIANT ORTHOPEDIC DRIVER
2y 5m to grant Granted Mar 17, 2026
Patent 12569237
FORCE-INDICATING RETRACTOR DEVICE AND METHODS OF USE
2y 5m to grant Granted Mar 10, 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

3-4
Expected OA Rounds
72%
Grant Probability
99%
With Interview (+33.8%)
3y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 752 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