Prosecution Insights
Last updated: April 19, 2026
Application No. 18/583,122

CADAVEROUS HEART MODEL

Non-Final OA §103
Filed
Feb 21, 2024
Examiner
FERNSTROM, KURT
Art Unit
3715
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Maximum Fidelity Surgical Simulations Inc.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
81%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allow Rate
1048 granted / 1589 resolved
-4.0% vs TC avg
Moderate +15% lift
Without
With
+14.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
43 currently pending
Career history
1632
Total Applications
across all art units

Statute-Specific Performance

§101
11.9%
-28.1% vs TC avg
§103
38.6%
-1.4% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
22.6%
-17.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1589 resolved cases

Office Action

§103
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 § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1, 3, 5, and 7-9 are rejected under 35 U.S.C. 103 as being unpatentable over Fernandez (US 2016/0140878) in view of Reich. Fernandez discloses in the Figures and specification a testing system (see paragraph [0050]) comprising a pump, a heart valve, a vessel, a fluid and a cadaveric tissue (all disclosed at paragraph [0022]), where the vessel is in fluidic connection with the pump and the cadaveric tissue. Fernandez does not disclose the provision of a partial cadaver. This feature is known in the art, as taught for example by Reich at paragraph [0169], and would have been obvious to one of ordinary skill in the art as an obvious substitution of one known element for another to achieve predictable results and for the purpose of providing a more portable testing system. With respect to claim 3, Fernandez discloses at paragraph [0025] the provision of a pulsatile pump. With respect to claim 5, Fernandez further discloses the provision of a cadaveric artery. With respect to claim 7, the heart valve of Fernandez is located within a vessel. With respect to claim 8, Fernandez discloses the provision of a full cadaver, which includes each of the recited cadaveric tissue types. With respect to claim 9, Fernandez discloses the use of expired blood at paragraph [0049]. Claims 2 and 6 are rejected under 35 U.S.C. 103 as being unpatentable over Fernandez (US 2016/0140878) in view of Reich, and further in view of Alkhatib. Fernandez teaches or suggests the claim limitations with the exception of the provision of a synthetic aorta valve as recited. This feature is known in the art, as taught for example by Alkhatib at paragraphs [0006] and [0027-28], and would have been obvious to one of ordinary skill in the art as an obvious substitution of one known element for another to achieve predictable results and for the purpose of facilitating testing of an implantable heart valve. With respect to claim 6, Alkhatib further discloses at paragraphs [0006] and [0027-28] the provision of a synthetic tube. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over Fernandez (US 2016/0140878) in view of Reich, and further in view of Lemieux. This feature is known in the art, as taught for example by Lemieux at paragraph [0042], and would have been obvious to one of ordinary skill in the art as an obvious substitution of one known element for another to achieve predictable results Claims 10-18 are rejected under 35 U.S.C. 103 as being unpatentable over Fernandez (US 2016/0140878) in view of Alkhatib. With respect to claim 10, Fernandez teaches or suggests the claim limitations with the exception of the provision of an implantable medical device as recited. This feature is known in the art, as taught for example by Alkhatib at paragraphs [0006] and [0027-28], and would have been obvious to one of ordinary skill in the art as an obvious substitution of one known element for another to achieve predictable results and for the purpose of facilitating testing of an implantable medical device. With respect to claim 11, Fernandez discloses the use of expired blood at paragraph [0049]. With respect to claim 12, Fernandez discloses the step of controlling the temperature of the fluid at paragraph [0038]. With respect to claim 13, Fernandez discloses the step of controlling the temperature of the fluid at paragraph [0026]. With respect to claim 14, Alkhatib discloses the step of causing fluid to flow through a tubular vessel in communication with the implantable medical device. With respect to claim 15, Fernandez discloses the provision of a full cadaver, which includes each of the recited cadaveric tissue types. With respect to claim 16, Fernandez discloses the provision of a natural blood vessel. With respect to claims 17 and 18, Alkhatib discloses at paragraphs [0006] and [0027-28] that its implantable medical device is in one embodiment an artificial aorta valve. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KURT FERNSTROM whose telephone number is (571)272-4422. The examiner can normally be reached M-F 10-6. 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, Peter Vasat can be reached at 571-270-7625. 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. /KURT FERNSTROM/Primary Examiner, Art Unit 3715 February 11, 2026
Read full office action

Prosecution Timeline

Feb 21, 2024
Application Filed
Feb 11, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12588778
UPLIFTED HANDS ASSIST DEVICE FOR PRAYING LIKE MOSES
2y 5m to grant Granted Mar 31, 2026
Patent 12567342
Fluid Simulation Apparatus
2y 5m to grant Granted Mar 03, 2026
Patent 12562078
VEIN SIMULATOR SYSTEM
2y 5m to grant Granted Feb 24, 2026
Patent 12555493
SYSTEMS, METHODS, AND MANIPULATIVES FOR INSTRUCTION IN EXPONENTS AND LOGARITHMS
2y 5m to grant Granted Feb 17, 2026
Patent 12555494
VASCULAR ACCESS TRAINING SIMULATOR SYSTEM AND TRANSPARENT ANATOMICAL MODEL
2y 5m to grant Granted Feb 17, 2026
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
66%
Grant Probability
81%
With Interview (+14.8%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1589 resolved cases by this examiner. Grant probability derived from career allow rate.

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