Prosecution Insights
Last updated: April 19, 2026
Application No. 17/886,881

THREE-DIMENSIONAL (3D) HERNIA PLUG DEVICE AND A METHOD OF MANUFACTURING THEREOF

Non-Final OA §102§103
Filed
Aug 12, 2022
Examiner
DORNA, CARRIE R
Art Unit
3791
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
The Governors of the University of Alberta
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
3y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
649 granted / 900 resolved
+2.1% vs TC avg
Strong +28% interview lift
Without
With
+28.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
35 currently pending
Career history
935
Total Applications
across all art units

Statute-Specific Performance

§101
5.7%
-34.3% vs TC avg
§103
37.2%
-2.8% vs TC avg
§102
21.3%
-18.7% vs TC avg
§112
25.7%
-14.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 900 resolved cases

Office Action

§102 §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 . Election/Restrictions Claims 12-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 5 December 2025. The examiner acknowledges the cancellation of non-elected claims 12-20. Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. Claim Objections Claims 3, 4, and 8 are objected to because of the following informalities: Claim 3: “the one or more and second first overhangs” should read --the one or more first and second overhangs-- Claim 4: “translates” should read --transforms-- for consistency with parent claim 1 Claim 8: “allot” should read --alloy-- Appropriate correction is required. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-4 and 6-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by U.S. Patent Application Publication No. 2010/0131006 (Chanduszko). Regarding claim 1, Chanduszko teaches a three-dimensional (3D) hernia plug (30) (abstract; The limitation “hernia plug” is intended use. Since the plug of Chanduszko is configured and employed for closing an aperture in a body organ, the plug is capable of performing the claimed intended use, [0018], Figure 5), comprising: a waist portion (36, 38) extending, along a longitudinal extension axis, between a first waist end and a second waist end; one or more first overhangs (32a-32c) coupled to the first waist end; and one or more second overhangs (34a-34c) coupled to the second waist end, wherein the hernia plug is configured to transform between a pre-activation state and a post-activation state (shape memory: [0008], [0018]-[0019], “pre-activation state” shown in Figure 1 and “post-activation state” shown in Figures 2-4; [0024]; Figures 3-4). Regarding claims 2-4 and 6-8, Chanduszko teaches the hernia plug (30) is configured to change shape between the pre-activation state and a post-activation state; wherein in the pre-activation state, each of the one or more first and second overhangs (32a-32c, 34a-34c) extends substantially parallel to the extension axis, and in the post-activation state, each of the one or more first and second overhangs extends substantially orthogonal to the extension axis; wherein the hernia plug translates from the pre-activation state to the post-activation state in response to a thermal stimuli; wherein the hernia plug is manufactured from a smart memory material; wherein the thermal stimuli corresponds to the glass transition temperature (Tg) of the smart memory material; wherein the smart material polymer comprises a shape memory alloy ([0018]-[0019]; [0021]; nitinol, [0035]; Figures 1-3). Regarding claim 9, Chanduszko teaches the hernia plug (30) is deployable at a hernia-defect site in the post-activated state, the hernia-defect site comprising an inguinal hernia-defect side, and the one or more first overhangs are configured to engage a groin-side of an abdominal wall, and the one or more second overhangs are configured to engage an abdomen-side of the abdominal wall, such that the hernia plug is self-gripping (The limitation “deployable at a hernia-defect site in the post-activated state, the hernia-defect site comprising an inguinal hernia-defect side, and the one or more first overhangs are configured to engage a groin-side of an abdominal wall, and the one or more second overhangs are configured to engage an abdomen-side of the abdominal wall, such that the hernia plug is self-gripping” is functional language. Since the plug 30 of Chanduszko is configured for insertion into a defect in a body organ in a first state, and to transform to a second state to anchor its overhangs on either side of the defect of the body organ, the plug 30 is capable of performing the claimed function. See “anchoring”, [0007], [0018], [0024]-[0025], and Figures 1-5). Regarding claim 10, Chanduszko teaches each of the one or more first and second overhangs (32a-32c, 34a-34c) comprises one of a planar member and a rod-like elongate member, and the waist portion (36, 38) comprises one of, (i) one or more connected continuous members, and (ii) one or more spaced discrete members (Figures 1-4). Regarding claim 11, Chanduszko teaches the waist portion (36, 38) expands in an axis orthogonal to the extension axis in the post-activation state (“waist portion” construed as central portion 38 and whiskers or foam collar 36, [0024], which “expands” orthogonally to the longitudinal axis when released from the deployment catheter). Claim Rejections - 35 USC § 103 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. Claim 5 is rejected under 35 U.S.C. 103 as being unpatentable over U.S. Patent Application Publication No. 2010/0131006 (Chanduszko) in view of U.S. Patent Application Publication No. 2007/0282374 (Sogard). Regarding claim 5, Chanduszko teaches all the limitations of claim 4. Chanduszko teaches the thermal stimuli is an ambient temperature (upon deployment in the body, the device reverts to memory shape, [0021], [0035]), but does not quantify the temperature range. However, Sogard teaches a three-dimensional (3D) implantable device (abstract; [0022]-[0024]), wherein the device translates from a pre-activation state to a post-activation state in response to a thermal stimuli, wherein the thermal stimuli is an ambient temperature in a range of 35°C to 40°C ([0081]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the material of Chanduszko such that the device transforms from the pre-activation state to the post-activation state in response to an ambient temperature in a range of 35°C to 40°C, such as 37°C to 40°C, as taught by Sogard, to that the configuration of the device changes upon placement in the body at its target location following deployment (Sogard: [0081]). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 2006/0190036 (Wendel): shape memory sealing plug with a plurality of overhangs extending from first and second ends of a waist portion (Figure 3; [0043]) US 2004/0215231 (Fortune): sealing plug with first and second overhands extending from first and second ends of a waist portion (Figures 1-6) Any inquiry concerning this communication or earlier communications from the examiner should be directed to Carrie R Dorna whose telephone number is (571)270-7483. The examiner can normally be reached 8am-5pm. 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, Alexander Valvis can be reached at 571-272-4233. 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. /CARRIE R DORNA/Primary Examiner, Art Unit 3791
Read full office action

Prosecution Timeline

Aug 12, 2022
Application Filed
Jan 09, 2026
Non-Final Rejection — §102, §103 (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
72%
Grant Probability
99%
With Interview (+28.4%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 900 resolved cases by this examiner. Grant probability derived from career allow rate.

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