Prosecution Insights
Last updated: April 19, 2026
Application No. 18/663,495

ANGIOPLASTY DEVICE

Non-Final OA §102
Filed
May 14, 2024
Examiner
FISHBACK, ASHLEY LAUREN
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nexstep Medical
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
3y 2m
To Grant
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
754 granted / 942 resolved
+10.0% vs TC avg
Strong +22% interview lift
Without
With
+21.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
24 currently pending
Career history
966
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
36.1%
-3.9% vs TC avg
§102
35.8%
-4.2% vs TC avg
§112
17.6%
-22.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 942 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Election/Restrictions Applicant’s election without traverse of Species A in the reply filed on 1/7/2026 is acknowledged. Applicant remarks that claims 1-5, 7, 8, 11, 13, & 14 read on the elected species (i.e. Figs. 1 & 2). However, examiner disagrees with the analysis: claim 14, which recites ‘the first conduit being open radially into the third conduit’, is seen in non-elected Species D-F (Figs. 5-7); claim 11 is drawn to the first conduit opening shown in Fig. 8, which was not elected. Examiner believes that perhaps applicant meant to recite claim 15 instead of claim 14 in this listing, as claim 15 reads on Species A. Claim 10 reads on the first conduit openings of Species A (Fig. 1) and is believed to be elected in place of claim 11. Claim 12 also recites a generic limitation and is believed to be also included in said election. For the purpose of examination, according to the election made, examiner will examine claims 1-5, 7, 8, 10, 12, 13, and 15. Claims 6, 9, 11, & 14 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 1/7/2026. Claim Objections Claim 1 is objected to because of the following informalities: line 25 - ‘outat’ should be amended to read --out at--. Appropriate correction is required. Claim 3 is objected to because of the following informalities: lines 1 & 2 - ‘the injection orifices’ should be amended to read --the one or more injection orifices-- to mimic the language used in claim 1, furthermore, the ‘one or more injection orifices’ has not been further limited to definitively be more than one, making the recitation ‘the injection orifices’ be a cause for confusion. Appropriate correction is required. Claim 10 is objected to because of the following informalities: ‘outat’ and ‘andat’ should be amended to read --out at-- and --and at--, respectively. Appropriate correction is required. Claim Rejections - 35 USC § 102 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 the appropriate paragraphs of pre-AIA 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 – (b) the invention was patented or described in a printed publication in this or a foreign country or in public use or on sale in this country, more than one year prior to the date of application for patent in the United States. Claims 1-5, 7, 8, 10, 12, and 13 are rejected under pre-AIA 35 U.S.C. 102(b) as being anticipated by St. Goar et al. (US Pat. No. 6,090,096). Regarding claim 1, St. Goar et al. disclose an angioplasty device 20, 80 (Figs. 1, 2, 8, 9) configured for local widening of a narrowed segment of an internal lumen of a blood vessel including atheromatous deposits on walls of the blood vessel, the angioplasty device comprising a flexible tubular body 22, 82 (Figs. 1 & 8) extending along a longitudinal axis between a proximal end and a distal end, wherein the flexible tubular body 22, 82 comprises a proximal part that includes the proximal end, and a distal part that includes the distal end, the tubular body 22, 82 further comprising: an inflatable angioplasty balloon 28/84,110 arranged radially about the tubular body in the distal part, wherein the angioplasty balloon 28/84,110 is such that an inflation of the angioplasty balloon in the narrowed segment of the blood vessel causes the internal lumen of the blood vessel to widen, the atheromatous deposits to compress against the walls of the blood vessel and a stenosis to be durably rectified; a first internal conduit 44, 98 (Figs. 1 & 8) extending parallel to the longitudinal axis at least in the distal part, to enable an insertion of a guidewire having a predetermined external diameter into the first conduit and a sliding of the tubular body along a guide wire (conduit 44, 98 extends from a proximal conduit opening 46, 100 to a distal conduit opening 48, 102 which would allow for a guidewire to extend therethrough and allow the tubular body/catheter to be slide thereover; column 9, lines 63-67) ; a leaktight second internal conduit 50, 112 (Figs. 1, 2, 8, 9) extending parallel to the longitudinal axis and opening out at the proximal end 52 and opening out into the balloon 28, 110 (via port 54, 116) in such a way as to permit an injection of a fluid into the balloon; a third internal conduit 30, 86 (Figs. 1, 2, 8, 9) opening out at the proximal end and into one or more injection orifices 34, 90 (Figs. 1, 2, 8, 9) situated in the distal part, at least one of which is less than 5 cm away from the angioplasty balloon (column 6, lines 58-60), wherein the third conduit has a cross-section dimension based on an amount and a viscosity of a contrast agent to be injected therethrough and into a patient's blood (fluid intended to be delivered therethrough - column6, lines 63-64); a fourth internal conduit 38, 92 (Figs. 1, 2, 8, 9) for injecting medicaments or substances into the patient’s blood. Regarding claim 2, St. Goar et al. further disclose wherein the first 44(98), second 50(112) and third conduits 30(86) are leaktight with respect to one another (Figs. 2 & 9). Regarding claim 3, St. Goar et al. further disclose wherein the injection orifices 34 (90) (Figs. 1 & 8) are distributed radially about the tubular body 22,82 (on a radial location). Regarding claim 4, St. Goar et al. further disclose wherein the one or more injection orifices 90 (Fig. 8) include at least one downstream injection orifice situated between the angioplasty balloon 110 and the distal end (Fig. 8). Regarding claim 5, St. Goar et al. further disclose wherein the one or more injection orifices 34 (Fig. 1) include at least one upstream injection orifice situated between the proximal part and the angioplasty balloon 28 (Fig. 1). Regarding claim 7, St. Goar et al. further disclose wherein the first 44(98), second 50(112) and third conduits 30(86) are arranged side by side (Figs. 2 & 9). Regarding claim 8, St. Goar et al. further disclose wherein the first conduit 44 (98) has a circular cross section (at the proximal end where the ports link up to the tubular body 22 (82) and has a diameter substantially equal to that of the guide wire 68 (column 9, lines 63-67). Regarding claim 10, St. Goar et al. further disclose wherein the first conduit 44 (98) opens out at the proximal end and at the distal end (conduit 44, 98 extends from a proximal conduit opening 46, 100 to a distal conduit opening 48, 102; column 9, lines 63-67). Regarding claim 12, St. Goar et al. further disclose wherein each of the one or more injection orifices 34, 90 (Figs. 1, 2, 8, 9) is located less than 5 cm away from the angioplasty balloon (column 6, lines 58-60) Regarding claim 13, St. Goar et al. further disclose further comprising a guide wire 68 (column 9, lines 63-67) of said predetermined external diameter. Allowable Subject Matter Claim 15 is allowed. The following is an examiner’s statement of reasons for allowance: the following is a list of the most pertinent prior art with respect to the claims: US Pat. Nos. 6,723,070; 6,322,577*; 6,090,096*; 5,637,086*; 4,909,258*; 4,777,951*; 4,763,654*. (*IDS reference) The closest prior art to claim 15 is found to be US Pat. No. 6,322,577 which has a multipurpose conduit 16 and inflation conduit 13 as claimed in claim 15 (Fig. 1), but fails to further disclose, teach, or suggest an additional conduit for injecting medicaments or substances into a patient’s blood. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ASHLEY LAUREN FISHBACK whose telephone number is (571)270-7899. The examiner can normally be reached M-F 7:30a-3:30p. 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, Darwin Erezo can be reached at (571) 272-4695. 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. ASHLEY LAUREN FISHBACK Primary Examiner Art Unit 3771 /ASHLEY L FISHBACK/Primary Examiner, Art Unit 3771 February 7, 2026
Read full office action

Prosecution Timeline

May 14, 2024
Application Filed
Feb 07, 2026
Non-Final Rejection — §102 (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
80%
Grant Probability
99%
With Interview (+21.8%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 942 resolved cases by this examiner. Grant probability derived from career allow rate.

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