Prosecution Insights
Last updated: November 03, 2026
Application No. 19/034,901

DISTAL TIPS AND ELEVATORS FOR MEDICAL DEVICES AND RELATED METHODS

Non-Final OA §102
Filed
Jan 23, 2025
Priority
Jan 25, 2024 — provisional 63/624,999
Examiner
GHIMIRE, SHANKAR RAJ
Art Unit
3795
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Boston Scientific Corporation
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
234 granted / 305 resolved
+6.7% vs TC avg
Strong +19% interview lift
Without
With
+19.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
32 currently pending
Career history
342
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
45.9%
+5.9% vs TC avg
§102
25.8%
-14.2% vs TC avg
§112
25.5%
-14.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 305 resolved cases

Office Action

§102
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 Applicants’ election of claims 1-18 is acknowledged. The election is considered without traverse and made final. See MPEP 818.01 (portions below) - 818.01(a) Reply Must be Complete [R-07.2015] As indicated in the first sentence of 37 CFR 1.143, the traverse to a requirement for restriction must be complete as required by 37 CFR 1.111(b). Under this rule, the applicant is required to specifically point out the reason(s) on which he or she bases his or her conclusion(s) that a requirement to restrict is in error. A mere broad allegation that the requirement is in error does not comply with the requirement of 37 CFR 1.111. Thus the required provisional election (see MPEP § 818.01(b)) becomes an election without traverse if accompanied by an incomplete traversal of the requirement for restriction. Claims 19-20 are withdrawn from further consideration. Information Disclosure Statement The information disclosure statement (IDS) submitted on 07/30/2025, 01/23/2025 is/are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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) 1-6, 8-18 is/are rejected under 35 U.S.C. 102 as being anticipated by Harada (US 20230355079). Regarding claim 1, Harada discloses a medical device (FIG. 1) comprising: a shaft (insertion part 14 has a working channel; FIGS. 1, 14; Para [0007]) comprising a working channel; a distal tip (distal end part 14a) coupled to the shaft and comprising a housing, wherein the housing includes a slot (an elevator housing space 37: FIG. 4, annotated) in communication with the working channel, wherein the slot includes a bottom opening (FIG. 4; Para [0045]) formed in a bottom wall of the housing; and an elevator (elevator 39; FIG. 13, annotated) positioned within the slot, wherein, in a fully lowered configuration of the elevator, at least a portion of the elevator extends through the bottom opening (FIGS. 4, 8A, 8B). PNG media_image1.png 390 498 media_image1.png Greyscale PNG media_image2.png 423 667 media_image2.png Greyscale Regarding claim 2, Harada discloses wherein the slot further includes a distal opening on a distal wall of the housing, and a top opening on a top wall of the housing (FIG. 4). Regarding claim 3, Harada discloses a protrusion (FIG. 13, annotated) extending from a back surface of the elevator (The protrusions can be considered extending from the back surface of the elevator.). Regarding claim 4, Harada discloses wherein, in the fully lowered configuration, the protrusion is received within the bottom opening (FIGS. 4, 8A, 8B). Regarding claim 5, Harada discloses wherein the elevator includes a guide surface (distal end part of the protrusion - 38, 51) configured to contact a medical instrument, and wherein the back surface is opposite to the guide surface. Regarding claim 6, Harada discloses wherein the protrusion is elongated in an axial direction (Protrusion, FIG. 13 is elongated in axial direction) along a distal portion of the back surface. Regarding claim 8, Harada discloses wherein a lateral width of the protrusion is less than a lateral width of the back surface (FIGS. 9-10, 13). Regarding claim 9, Harada discloses wherein in the fully lowered configuration, portions of the back surface adjacent to the protrusion (Side portion of the protrusion, FIGS. 3-4, 13, contact an inner surface of the bottom wall.) contact an inner surface of the bottom wall. Regarding claim 10, Harada discloses wherein the portions of the back surface adjacent to the protrusion are on a first lateral side of the back surface and a second lateral side of the back surface (FIG. 13). Regarding claim 11, Harada discloses wherein a portion of the back surface that is proximal of the protrusion contacts the inner surface of the bottom wall (FIGS. 3-4, 13). Regarding claim 12, Harada discloses wherein in the fully lowered configuration, a medical instrument extending along a guide surface of the elevator extends distally from the distal tip at an angle of approximately 0.0 degrees to approximately 5.0 degrees (Note the angle of treatment tool with the axis in FIG. 13, reproduced below). PNG media_image3.png 314 581 media_image3.png Greyscale Regarding claim 13, Harada discloses wherein a distal end of the elevator includes a distal surface, wherein the distal surface intersects a guide surface at a first distal edge (FIG. 13, reproduced below), and wherein a central portion of the first distal edge is distal to side portions of the first distal edge (A central portion of the first distal edge is distal to side portions of the first distal edge). PNG media_image4.png 423 694 media_image4.png Greyscale Regarding claim 14, Harada discloses wherein the elevator includes a guide surface configured to contact a medical instrument, and wherein the guide surface has a "V" shape (FIG. 13). Regarding claim 15, Harada discloses wherein the bottom opening is continuous with a distal opening of the slot (FIG. 4), wherein the distal opening is formed in a distal wall of the distal tip (FIG. 4). Regarding claim 16, Harada discloses a medical device (FIG. 1) comprising: a shaft (insertion part 14 has a working channel; FIGS. 1, 14; Para [0007]) comprising a working channel; a distal tip (distal end part 14a) coupled to the shaft and comprising a housing, wherein the housing includes a slot (an elevator housing space 37: FIG. 4, annotated) in communication with the working channel; and an elevator (elevator 39; FIG. 13, annotated) positioned within the slot, wherein the elevator includes a first side surface having a first top edge and a first bottom edge (The elevator has a side surface, a first top edge and a first bottom edge.); a second side surface having a second top edge and a second bottom edge (On the other side, the elevator has a side surface a first top edge and a first bottom edge); and a distal surface having a distal top edge and a distal bottom edge (FIGS. 9-10, 13); wherein the first top edge is parallel to the first bottom edge (FIG. 13), wherein the second top edge is parallel to the second bottom edge (On the two sides, the top edge and bottom edges are parallel), and wherein the distal bottom edge is straight and extends from the first bottom edge to the second bottom edge (the distal bottom edge is straight and extends from the first bottom edge to the second bottom edge; FIGS. 9-10). PNG media_image5.png 408 771 media_image5.png Greyscale Regarding claim 17, Harada discloses wherein the elevator includes a guide surface to contact a medical instrument (FIG. 13), wherein the guide surface has a "C" shape, and wherein the distal top edge is a distal edge of the guide surface, such that the distal top edge has a "C" shape (FIG. 13, reproduced below). PNG media_image6.png 483 764 media_image6.png Greyscale Regarding claim 18, Harada discloses wherein the housing includes a distalmost (The distalmost extends substantially perpendicularly to a longitudinal axis of the distal tip. FIG. 13) surface that extends substantially perpendicularly to a longitudinal axis of the distal tip. Claim(s) 1-7 is/are rejected under 35 U.S.C. 102 as being anticipated by Katsurada (US 5868663). Regarding claim 1, Katsurada discloses a medical device (FIG. 3) comprising: a shaft comprising a working channel (FIG. 6); a distal tip coupled to the shaft (FIG. 3) and comprising a housing, wherein the housing includes a slot in communication with the working channel (FIG. 3), wherein the slot includes a bottom opening formed in a bottom wall of the housing (FIG. 3); and an elevator (raising piece 3 is held in a receptacle groove 2 formed in the front end body 1.) positioned within the slot, wherein, in a fully lowered configuration of the elevator, at least a portion of the elevator extends through the bottom opening (FIG. 1). PNG media_image7.png 402 504 media_image7.png Greyscale PNG media_image8.png 371 684 media_image8.png Greyscale Regarding claim 2, Katsurada discloses wherein the slot further includes a distal opening on a distal wall of the housing, and a top opening on a top wall of the housing (FIG. 1). Regarding claim 3, Katsurada discloses wherein a protrusion (FIG. 2) extending from a back surface of the elevator (FIG. 3). Regarding claim 4, Katsurada discloses wherein in the fully lowered configuration, the protrusion is received within the bottom opening (FIG. 1). PNG media_image9.png 465 588 media_image9.png Greyscale Regarding claim 5, Katsurada discloses wherein the elevator includes a guide surface configured to contact a medical instrument, and wherein the back surface is opposite to the guide surface (FIGS. 1, 2). Regarding claim 6, Katsurada discloses wherein the protrusion is elongated in an axial direction along a distal portion of the back surface (protrusion is elongated in an axial direction along a distal portion of the back surface; FIG. 2). Regarding claim 7, Katsurada discloses wherein the protrusion has a rounded square shape (The protrusion has a rounded square shape. FIGS. 2-3; FIG.2, reproduced above). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO – 892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANKAR R GHIMIRE whose telephone number is (571)272-0515. The examiner can normally be reached 8 AM - 5 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, Anhtuan Nguyen can be reached on 571-272-4963. 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. /SHANKAR RAJ GHIMIRE/Examiner, Art Unit 3795 /ANHTUAN T NGUYEN/Supervisory Patent Examiner, Art Unit 3795 10/20/26
Read full office action

Prosecution Timeline

Jan 23, 2025
Application Filed
Oct 22, 2026
Non-Final Rejection mailed — §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
77%
Grant Probability
96%
With Interview (+19.4%)
3y 0m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 305 resolved cases by this examiner. Grant probability derived from career allowance rate.

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