Prosecution Insights
Last updated: April 19, 2026
Application No. 18/589,859

ENDOSCOPE DISTAL END AND ENDOSCOPE

Non-Final OA §103
Filed
Feb 28, 2024
Examiner
TILAHUN, ALAZAR
Art Unit
2424
Tech Center
2400 — Computer Networks
Assignee
Olympus Medical Systems Corp.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
85%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
464 granted / 654 resolved
+12.9% vs TC avg
Moderate +14% lift
Without
With
+14.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
27 currently pending
Career history
681
Total Applications
across all art units

Statute-Specific Performance

§101
6.9%
-33.1% vs TC avg
§103
57.5%
+17.5% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 654 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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on February 28, 2024 is being considered by the examiner. 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. Claim(s) 1-15 are rejected under 35 U.S.C. 103 as being unpatentable over HIRAOKA Pub. No.: US 2019/0239739 A1 (Hereinafter “HIRAOKA”) in view of OHKI Pub. No.: US 2018/0185045 A1 (Hereinafter “OHKI”). Regarding Claim 1, HIRAOKA discloses a distal end portion for use with an endoscope (see abstract), the distal end portion comprising: a distal end body having an insertion hole, the insertion hole configured to accept a treatment tool inserted therethrough (see fig.2 and paragraph [0046]); a shaft rotatably disposed relative to the distal end body (see figs.4-5 and paragraph [0081]); and a raising base configured to rotate with the shaft (see paragraph [0074]), and the raising base (see fig. 3) comprising; a shaft hole having an interior configured to be engaged with an exterior of the shaft (see figs.4-5 and paragraphs [0082-0084]); and a treatment tool guiding surface configured to abut against the treatment tool to adjust a direction in which the treatment tool protrudes (see paragraph [0048]), the treatment tool guiding surface provided on at least a proximal end side of the raising base (see paragraph [0048]), wherein the interior of the shaft hole comprises a first surface configured to abut against a corresponding portion of the exterior of the shaft, the first surface is positioned at a shortest distance from the treatment tool guiding surface relative to other portions of the interior of the shaft hole (see paragraphs [0082-0084]), HIRAOKA fails to disclose: a raising base configured to rotate with the shaft and be movable between a raised state where the raising base has been raised relative to a longitudinal direction of the distal end body and a laid state where the raising base has been laid relative to the longitudinal direction; the treatment tool guiding surface is configured to intersect the longitudinal direction in the laid state. In analogous art, OHKI teaches: a raising base configured to rotate with the shaft and be movable between a raised state where the raising base has been raised relative to a longitudinal direction of the distal end body and a laid state where the raising base has been laid relative to the longitudinal direction (see paragraphs [0018] and [0090]); the treatment tool guiding surface is configured to intersect the longitudinal direction in the laid state (see paragraph [0020]). Therefore, it would have been obvious to one ordinary skill in the art before the effective filing date of the claimed invention to modify the distal end portion of HIRAOKA with the teaching as taught by OHKI in order to provide an endoscope and a treatment tool-standing mechanism that allows a distal-end-portion body to be reduced in size while ensuring good operability of a standing base. Regarding Claim 2, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. OHKI further teaches wherein when the raising base is in the laid state, the treatment tool guiding surface extends in a direction in which the insertion hole extends (see paragraphs [0073] and [0083]). Regarding Claim 3, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. OHKI further teaches wherein a cross section of the treatment tool guiding surface has a linear shape, the cross section being orthogonal to the longitudinal direction of the distal end body (see paragraphs [0103] and [0124]). Regarding Claim 4, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 3. HIRAOKA further teaches wherein the interior of the shaft hole further having a second surface configured to abut against another corresponding surface of the exterior of the shaft, and the first surface and the second surface are at an acute angle relative to each other (see paragraph [0043]). Regarding Claim 5, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 4. OHKI further teaches wherein the raising base further comprising a screw hole communicating with the shaft hole, and the distal end portion further comprising a screw inserted into the screw hole for biasing the shaft against the first surface and the second surface (see fig. 4 and paragraph [0086]). Regarding Claim 6, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. OHKI further teaches wherein the shaft hole is a through hole (see fig. 4 and paragraph [0082]). Regarding Claim 7, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. OHKI further teaches wherein the shaft hole is a blind hole (see paragraph [0077]). Regarding Claim 8, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. OHKI further teaches wherein a cross section of the treatment tool guiding surface has a curved shape, the cross section being orthogonal to the longitudinal direction of the distal end body (see paragraph [0091]). Regarding Claim 9, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 8. HIRAOKA further teaches wherein the interior of the shaft hole further having a second surface configured to abut against another corresponding portion of the exterior of the shaft, and the first surface and the second surface are at an acute angle relative to each other (see paragraph [0043]). Regarding Claim 10, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 9. OHKI further teaches wherein the raising base further comprising a screw hole communicating with the shaft hole, and the distal end portion further comprising a screw for biasing the shaft against the first surface and the second surface (see fig. 4 and paragraph [0086]). Regarding Claim 11, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 8. OHKI further teaches wherein the raising base has a third surface on a periphery of the treatment tool guiding surface (see paragraph [0070]). Regarding Claim 12, HIRAOKA in view of OHKI teach the distal end portion as discussed in the rejection of claim 1. HIRAOKA further teaches an ultrasound probe positioned distally relative to the raising base (see paragraph [0031]). Regarding Claim 13, the claim is being analyzed with respect to the rejection of claim 1. Regarding Claim 14, the claim is being analyzed with respect to the rejection of claim 2. Regarding Claim 15, the claim is being analyzed with respect to the rejection of claim 12. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Alazar Tilahun whose telephone number is (571)270-5712. The examiner can normally be reached Monday -Friday, From 9:00 AM-6:00 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, Benjamin Bruckart can be reached at 571-272-3982. 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. /ALAZAR TILAHUN/ Primary Examiner Art Unit 2424 /A.T/Primary Examiner, Art Unit 2424
Read full office action

Prosecution Timeline

Feb 28, 2024
Application Filed
Nov 20, 2025
Non-Final Rejection — §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
71%
Grant Probability
85%
With Interview (+14.5%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 654 resolved cases by this examiner. Grant probability derived from career allow rate.

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