Prosecution Insights
Last updated: August 06, 2026
Application No. 18/037,490

EAR CATHETER AND INSERTION AID FOR A CATHETER

Non-Final OA §102§103§112
Filed
May 17, 2023
Priority
Nov 27, 2020 — DE 10 2020 131 572.4 +2 more
Examiner
SCHMIDT, EMILY LOUISE
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Auriventis GmbH
OA Round
1 (Non-Final)
58%
Grant Probability
Moderate
1-2
OA Rounds
2m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
591 granted / 1010 resolved
-11.5% vs TC avg
Strong +37% interview lift
Without
With
+36.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
48 currently pending
Career history
1081
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
49.8%
+9.8% vs TC avg
§102
21.7%
-18.3% vs TC avg
§112
22.2%
-17.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1010 resolved cases

Office Action

§102 §103 §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 . Election/Restrictions Claims 2-7, 13, 16, and 19-21 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Species, there being no allowable generic or linking claim.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 April 17, 2026. In response to Applicant’s further election of Set 1 Species ii the Examiner is additionally withdrawing claims 2-7. Claims 2, 6, and 7, which were originally identified as generic, upon further consideration appear specific to Fig. 2, as the expansion device is only present when the self-expanding sealing element is employed, this is not applicable when the elected balloon is used for sealing. Applicant’s election without traverse of Set 2 Species c in the reply filed on April 17, 2026 is acknowledged. During a telephone call on April 27, 2026 with Stephanie Mansfield Applicant further elected Set 1 Species ii. Claim Objections Claims 1, 8-12, 15, 17, and 18 are objected to because of the following informalities: the preambles of the claims should start with “An” or “The” as appropriate. Appropriate correction is required. Claim 1 is objected to because of the following informalities: claim 1 requires grammar correction where it recites “as catheter tube,” “as injection lumen,” and “as pressure relief lumen.” Appropriate correction is required. Claim 10 is objected to because of the following informalities: claim 10 recites “the connection device” which lacks antecedent basis. Appropriate correction is required. Claim Rejections - 35 USC § 112 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 9, 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. Regarding claims 9, 12, and 14, the phrase "in particular" renders the claim indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). 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. Claim(s) 1, 8, 9, 10, and 12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Spiggle et al. (US 2019/0209815 A1). With regards to claim 1, Spiggle et al. teach ear catheter for insertion into the eustachian tube, including a first tube as catheter tube (Fig. 2 member 2) with at least one first lumen as injection lumen (Fig. 2 member 9) for application of a liquid, at least one second lumen as pressure relief lumen (Fig. 2 member 13) for pressure relief, and a self-expandable sealing element (Fig. 2 member 5, [0030]) for the occlusion of the eustachian tube. With regard to claim 8, balloon 5 is on the distal portion of the tube and is inflated by lumen 6 (Fig. 2). With regard to claim 9, see [0018], not shown but all lumens have couplings. With regard to claim 10, see Fig. 2 lumens 9 and 12 extend distally of 5. With regard to claim 12, see [0018] valves may be provided in the lumens, at least a flap valve would be a one-way valve. 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(s) 11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Spiggle et al. (US 2019/0209815 A1) as applied to claim 1 above, and further in view of Chan et al. (US 2017/0119414 A1). With regard to claim 11, Spiggle et al. teach a device substantially as claimed but do not specifically disclose the tip to be atraumatic. However, Chan et al. teach a catheter for insertion in the ear in which the trip is atraumatic to access the eustachian tube ([0046], [0051]). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to use an atraumatic tip in Spiggle et al. as Chan et al. teach this is beneficial for providing atraumatic to access the eustachian tube. Claim(s) 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Spiggle et al. (US 2019/0209815 A1) as applied to claim 1 above, and further in view of Chan et al. (US 2017/0119414 A1). With regard to claim 14, Spiggle et al. teach insertion aid in particular for an ear catheter according to claim 1 (see the rejection above) provided with a headpiece, a middle piece and an end piece ([0008] an insertion tool is used which would necessarily have a headpiece, middle piece, and end piece as it has opposing ends on either side of a middle). Spiggle et al. do not disclose the material of the insertion tool. However, Chan et al. teach using a guide tube to insert a balloon catheter into the eustachian tube and using polymeric materials ([0044], [0045] the materials listed are biocompatible). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to use a biocompatible polymer in Spiggle et al. as Chan et al. teach such is an art effective material for guiding an instrument into the ear and would yield the same predicted result of insertion. Claim(s) 15, 17, and 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Spiggle et al. (US 2019/0209815 A1) and Chan et al. (US 2017/0119414 A1) as applied to claim 14 above, and further in view of Smith (US 4,985,018). With regard to claims 15, 17, and 18, Spiggle et al. teach a device substantially as claimed but do not disclose the insertion aid to be divided with a connecting element. However, Smith teaches using a splitable insertion tube with an insertion aid which includes two parts with a headpiece, end piece, and middle piece and connecting elements, this aids in removing the insertion member without pulling the inserted catheter (abstract, Col. 1 lines 35-39, Fig. 1 device 1 divided into members 2 and 3 connecting elements 26 and 2, headpiece in the area of 11 and 12, end piece opposite, middle piece between). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to use a splitable sheath with an insertion aid in Spiggle et al. as in Smith as this aids in ensuring the inserted catheter remains while the introducer is removed. As combined the introducer sheath is not considered as the insertion aid rather the aid as provided by Smith is considered. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The Examiner notes Chan et al. teach using a self-expanding member (exemplary Figs. 16). Any inquiry concerning this communication or earlier communications from the examiner should be directed to EMILY L SCHMIDT whose telephone number is (571)270-3648. The examiner can normally be reached Monday through Thursday 7:00 AM to 4:30 PM. 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 Sirmons can be reached at 571-272-4965. 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. /EMILY L SCHMIDT/ Primary Examiner, Art Unit 3783
Read full office action

Prosecution Timeline

May 17, 2023
Application Filed
May 14, 2026
Non-Final Rejection mailed — §102, §103, §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
58%
Grant Probability
95%
With Interview (+36.7%)
3y 4m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1010 resolved cases by this examiner. Grant probability derived from career allowance rate.

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