Prosecution Insights
Last updated: October 25, 2026
Application No. 18/982,672

Arteriovenous Graft System

Non-Final OA §112
Filed
Dec 16, 2024
Priority
Jul 26, 2022 — NL 2032601 +1 more
Examiner
ZIMBOUSKI, ARIANA
Art Unit
3781
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Academisch Ziekenhuis Leiden
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
1y 5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
418 granted / 614 resolved
-1.9% vs TC avg
Strong +31% interview lift
Without
With
+31.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
26 currently pending
Career history
639
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
12.9%
-27.1% vs TC avg
§112
31.4%
-8.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 614 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 . Claim Rejections - 35 USC § 112 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. Regarding claim 11, the phrase "preferably" renders the claim indefinite because it is unclear whether the limitations following the phrase are part of the claimed invention. See MPEP § 2173.05(d). Allowable Subject Matter Claims 1-10 are allowable and claim 11 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: the closest prior art found is Geelhoed et al. (US 2022/0047375), which does not disclose all required limitations of the claimed actuator device. Geelhoed discloses an arteriovenous graft system (see Figs. 1-2) comprising: an arteriovenous graft comprises a valve device 15, wherein the valve device comprises an open state in which fluid flow through the graft is possible (see par. 14), and a closed state in which the fluid flow through the arteriovenous graft is blocked (see par. 14); an actuator device 16 to actuate the valve device between the closed state and the open state (see par. 30); a transmission cable 17 connecting the actuator device with the valve device; wherein the actuator device comprises at least one magnet (see par. 61-62). However, Geelhoed does not disclose the at least one magnet being a movable magnet, which at least one movable magnet connects directly or indirectly to a rotatable plate comprising a spiraled groove, wherein said spiraled groove receives a pin that is movable in a linear path, wherein said pin is connected to the transmission cable so as to arrange that motion of the at least one magnet translates into a linear displacement of the pin and the transmission cable connected thereto . Leonard et al. (WO 2017/109016) discloses an arteriovenous graft system (see Fig. 1-6) comprising: an arteriovenous graft device comprising a valve device 1, 2, wherein the valve device comprises an open state in which fluid flow through the graft is possible, and a closed state in which the fluid flow through the arteriovenous graft is blocked (see Figs. 4-6, page 5, lines 9-14); an actuator device 4 to actuate the valve device between the closed state and the open state, and wherein a transmission cable 14 connectors the actuator device with the valve device. Leonard additionally discloses a set of magnets set into a rotatable disc in the actuator (see page 7, lines 12-20), and therefore discloses the actuator device comprising at least one movable magnet connected to a rotatable plate but does not disclose the required spiraled groove and pin. In applicant’s invention, the conversion of rotary motion to linear motion translated via the magnet and pin configuration allows for a rotary to linear motion conversion that does not involve a change in length of the actuator. Consequently, one of ordinary skill in the art would not be motivated to have such a spiraled groove, magnet, and pin configuration absent glancing into applicant’s specification. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Zougari (US 2020/0289737), disclosing a contactless actuation for valve implant and Johnson et al. (US 2015/0305746), disclosing a magnetically activated arteriovenous access valve system. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ARIANA ZIMBOUSKI whose telephone number is (303)297-4665. The examiner can normally be reached 8:30 - 5:00 PST M-F. 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, REBECCA E EISENBERG can be reached at (571) 270-5879. 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. /ARIANA ZIMBOUSKI/Primary Examiner, Art Unit 3781
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Prosecution Timeline

Dec 16, 2024
Application Filed
Sep 29, 2026
Non-Final Rejection mailed — §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
68%
Grant Probability
99%
With Interview (+31.1%)
3y 4m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 614 resolved cases by this examiner. Grant probability derived from career allowance rate.

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