Prosecution Insights
Last updated: May 29, 2026
Application No. 18/144,808

TELESCOPIC SHEATH

Non-Final OA §102§103
Filed
May 08, 2023
Examiner
TON, MARTIN TRUYEN
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
BIOSENSE WEBSTER (ISRAEL) LTD.
OA Round
3 (Non-Final)
62%
Grant Probability
Moderate
3-4
OA Rounds
5m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
324 granted / 525 resolved
-8.3% vs TC avg
Strong +35% interview lift
Without
With
+35.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
34 currently pending
Career history
575
Total Applications
across all art units

Statute-Specific Performance

§103
87.4%
+47.4% vs TC avg
§102
10.2%
-29.8% vs TC avg
§112
1.8%
-38.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 525 resolved cases

Office Action

§102 §103
DETAILED ACTION The following Office Action is in response to the Request for Continued Examination filed on April 1, 2026. Claims 1-19 are currently pending. 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on April 1, 2026 has been entered. Response to Arguments Concerning the “Rejections under 35 U.S.C. § 102” section on pages 8-11 of the Applicant’s Response filed on April 1, 2026, the applicant’s arguments have been fully considered, and they are persuasive. The applicant argues that the Heuser reference does not teach each and every element set forth in the claim, and the examiner agrees. Therefore, the rejections of the claims under 35 U.S.C. §102 as being anticipated by Heuser are withdrawn. Concerning the “Rejections under 35 U.S.C. § 103” section on pages 11-16 of the Applicant’s Response filed on April 1, 2026, the applicant’s arguments have been fully considered, but they are moot in view of the new ground(s) of rejection. The applicant argues that the Meyer reference does not teach the newly added limitation of “the telescopic sheath [being] configured for passing an intrabody catheter therethrough to dispose a distal end of the intrabody catheter distal to the distal end of the outer sleeve”. However, the interpretation of the Meyer reference has been modified to interpret the catheter body 106 of the Meyer reference as the intrabody catheter as discussed in the new ground(s) of rejection in the Office Action below. 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) 1-2, 5, 8, 11-12, 15, and 18 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Meyer et al. (US 2014/0180127, hereinafter Meyer). Concerning claim 1, the Meyer et al. prior art reference teaches a telescopic sheath (Figure 7-9; 100), comprising: an outer sleeve (Figure 7-9; 105) extending from a proximal end to a distal end, wherein the distal end is capable of being inserted into a heart, wherein the outer sleeve includes an outer sleeve proximal portion and an outer sleeve distal portion, the outer sleeve proximal portion having a proximal outer-sleeve inner circumference and including the proximal end (Figure 8; 105), and the outer sleeve distal portion having distal outer sleeve inner circumference and including the distal end (Figure 9; 105 before taper portion 107); an inner sleeve having a proximal end, a distal end, and an inner-sleeve outer circumference that is less than or identical to the distal outer sleeve inner circumference (Figure 7; 102), the inner sleeve being disposed in at least a portion of the outer sleeve proximal portion that defines the proximal outer-sleeve inner circumference (Figure 8; 102) such that the inner sleeve telescopically extends proximally from the proximal end of the outer sleeve proximal portion (Figure 7; 102) and such that the telescopic sheath is configured for passing an intrabody catheter therethrough to dispose a distal end of the intrabody catheter distal to the distal end of the outer sleeve (Figure 9; 106); a fluid seal (Figure 7; 103), which is disposed between the inner sleeve and outer sleeve and is configured to prevent back bleeding through a space between the inner sleeve and outer sleeve; and a lock (Figure 3; 104), configured to fix a position of the inner sleeve with respect to the outer sleeve ([¶ 0038]). Concerning claim 2, the Meyer reference teaches the telescopic sheath according to claim 1, wherein the Meyer reference further teaches a handle (Figure 7; 109) coupled to a proximal end of the inner sleeve. Concerning claim 5, the Meyer reference teaches the telescopic sheath according to claim 1, wherein the Meyer reference further teaches the lock comprising a ring configured to fix the position of the inner sleeve by clamping the outer sleeve against the inner sleeve (Figure 7; 104 | [¶ 0038]). Concerning claim 8, the Meyer reference teaches the telescopic sheath according to claim 1, wherein the Meyer reference further teaches the lock being capable of transferring, to the outer sleeve, torque that is applied to the inner sleeve given the lock fixes the relative positions of the sleeves ([¶ 0038]). Concerning claim 11, the Meyer et al. prior art reference teaches a method for manufacturing a telescopic sheath that is configured to guide an intrabody catheter into the body (Figure 7-9; 100), the method comprising: forming an outer sleeve (Figure 7-9; 105) extending from a proximal end to a distal end, wherein the distal end is capable of being inserted into a heart, wherein the outer sleeve includes an outer sleeve proximal portion and an outer sleeve distal portion, the outer sleeve proximal portion having a proximal outer-sleeve inner circumference and including the proximal end (Figure 8; 105), and the outer sleeve distal portion having distal outer sleeve inner circumference and including the distal end (Figure 9; 105 before taper portion 107); forming an inner sleeve having a proximal end, a distal end, and an inner-sleeve outer circumference that is less than or identical to the distal outer sleeve inner circumference (Figure 7; 102), the inner sleeve being disposed in at least a portion of the outer sleeve proximal portion that defines the proximal outer-sleeve inner circumference (Figure 8; 102) such that the inner sleeve telescopically extends proximally from the proximal end of the outer sleeve proximal portion (Figure 7; 102) and such that the telescopic sheath is configured for passing an intrabody catheter therethrough to dispose a distal end of the intrabody catheter distal to the distal end of the outer sleeve (Figure 9; 106); disposing a fluid seal between the inner sleeve and outer sleeve proximal portion (Figure 7; 103), the fluid seal, being configured to prevent back bleeding through a space between the inner sleeve and outer sleeve; and a lock (Figure 3; 104), providing a lock configured to fix a position of the inner sleeve with respect to the outer sleeve ([¶ 0038]). Concerning claim 12, the Meyer reference teaches the method according to claim 1, wherein the Meyer reference further teaches a handle (Figure 7; 109) coupled to the proximal end of the inner sleeve. Concerning claim 15, the Meyer reference teaches the method according to claim 1, wherein the Meyer reference further teaches the lock comprising a ring configured to fix the position of the inner sleeve by clamping the outer sleeve against the inner sleeve (Figure 7; 104 | [¶ 0038]). Concerning claim 18, the Meyer reference teaches the method according to claim 1, wherein the Meyer reference further teaches the lock being capable of transferring, to the outer sleeve, torque that is applied to the inner sleeve given the lock fixes the relative positions of the sleeves ([¶ 0038]). 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) 1, 3-4, 11, and 13-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Root et al. (US 2014/0249562, hereinafter Root) in view of Meyer et al. (US 2014/0180127, hereinafter Meyer). Concerning claim 1, the Root et al. prior art reference teaches a telescopic sheath (Figure 4; 480), comprising: an outer sleeve (Figure 4; 450) extending from a proximal end to a distal end, wherein the distal end is capable of being inserted into a heart, wherein the outer sleeve includes an outer sleeve proximal portion (Figure 4; 451) and an outer sleeve distal portion (Figure 4; 450), the outer sleeve proximal portion having a proximal outer-sleeve inner circumference and including the proximal end (Figure 4; 451), and the outer sleeve distal portion having distal outer sleeve inner circumference and including the distal end (Figure 4; 450); an inner sleeve having a proximal end, a distal end, and an inner-sleeve outer circumference that is less than or identical to the distal outer sleeve inner circumference (Figure 4; 420), the inner sleeve being disposed in at least a portion of the outer sleeve proximal portion that defines the proximal outer-sleeve inner circumference (Figure 4; 473) such that the inner sleeve telescopically extends proximally from the proximal end of the outer sleeve proximal portion (Figure 4; 420) and such that the telescopic sheath is configured for passing an intrabody catheter therethrough to dispose a distal end of the intrabody catheter distal to the distal end of the outer sleeve (Figure 7; 730), but it does not specifically teach a fluid seal, which is disposed between the inner sleeve and outer sleeve and is configured to prevent back bleeding through a space between the inner sleeve and outer sleeve, and a lock, configured to fix a position of the inner sleeve with respect to the outer sleeve. However, the Meyer reference teaches a telescopic sheath similar to that of the Root reference, wherein the Meyer reference teaches a fluid seal (Figure 7; 103), which is disposed between the inner sleeve and outer sleeve and is configured to prevent back bleeding through a space between the inner sleeve and outer sleeve; and a lock (Figure 3; 104), configured to fix a position of the inner sleeve with respect to the outer sleeve ([¶ 0038]). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to have the telescopic sheath of the Root reference include the fluid seal and lock of the Meyer reference to prevent fluid from entering the space between the inner and outer sleeves (Meyer; [¶ 0027]), and to further maintain a relative position of the inner and outer sleeves (Meyer; [¶ 0038]). Concerning claim 3, the combination of the Root and Meyer references as discussed above teaches the telescopic sheath according to claim 1, wherein the Root reference further teaches the outer sleeve narrowing distally from the proximal portion of the outer sleeve to the distal portion of the outer sleeve (Figure 4; 450, 451). Concerning claim 4, the combination of the Root and Meyer references as discussed above teaches the telescopic sheath according to claim 1, wherein the Root reference further teaches the inner-sleeve outer circumference being identical to the distal outer-sleeve inner circumference (Figure 4; 473). Concerning claim 11, the Root et al. prior art reference teaches a method for manufacturing a telescopic sheath that is configured to guide an intrabody catheter into the body (Figure 4; 480), the method comprising: forming an outer sleeve (Figure 4; 450) extending from a proximal end to a distal end, wherein the distal end is capable of being inserted into a heart, wherein the outer sleeve includes an outer sleeve proximal portion (Figure 4; 451) and an outer sleeve distal portion (Figure 4; 450), the outer sleeve proximal portion having a proximal outer-sleeve inner circumference and including the proximal end (Figure 4; 451), and the outer sleeve distal portion having distal outer sleeve inner circumference and including the distal end (Figure 4; 450); forming an inner sleeve having a proximal end, a distal end, and an inner-sleeve outer circumference that is less than or identical to the distal outer sleeve inner circumference (Figure 4; 420), inserting the inner sleeve having a proximal end, a distal end, and an inner-sleeve outer circumference less than or identical to the outer sleeve inner circumference in at least a portion of the outer sleeve proximal portion that defines the proximal outer-sleeve inner circumference (Figure 4; 473) such that the inner sleeve telescopically extends proximally from the proximal end of the outer sleeve proximal portion (Figure 4; 420) and such that the telescopic sheath is configured for passing an intrabody catheter therethrough to dispose a distal end of the intrabody catheter distal to the distal end of the outer sleeve (Figure 7; 730), but it does not specifically teach disposing a fluid seal between the inner sleeve and outer sleeve proximal portion, the fluid seal being configured to prevent back bleeding through a space between the inner sleeve and outer sleeve, and a lock, configured to fix a position of the inner sleeve with respect to the outer sleeve. However, the Meyer reference teaches a telescopic sheath similar to that of the Root reference, wherein the Meyer reference teaches a fluid seal (Figure 7; 103), which is disposed between the inner sleeve and outer sleeve and is configured to prevent back bleeding through a space between the inner sleeve and outer sleeve; and a lock (Figure 3; 104), configured to fix a position of the inner sleeve with respect to the outer sleeve ([¶ 0038]). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to have the telescopic sheath of the Root reference include the fluid seal and lock of the Meyer reference to prevent fluid from entering the space between the inner and outer sleeves (Meyer; [¶ 0027]), and to further maintain a relative position of the inner and outer sleeves (Meyer; [¶ 0038]). Concerning claim 13, the combination of the Root and Meyer references as discussed above teaches the telescopic sheath according to claim 11, wherein the Root reference further teaches the outer sleeve narrowing distally from the proximal portion of the outer sleeve to the distal portion of the outer sleeve (Figure 4; 450, 451). Concerning claim 14, the combination of the Root and Meyer references as discussed above teaches the telescopic sheath according to claim 11, wherein the Root reference further teaches the inner-sleeve outer circumference being identical to the distal outer-sleeve inter circumference (Figure 4; 473). Claim(s) 6, 7, 16, and 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Root et al. (US 2014/0249562, hereinafter Root) in view of Meyer et al. (US 2014/0180127, hereinafter Meyer) as applied to claims 1, 3-4, 11, and 13-14 above, and further in view of Mauch (US 2018/0126121). Concerning claims 6, 7, 16, and 17, the combination of the Root and Meyer references as discussed above teaches the telescopic sheath and the method of manufacturing the telescopic sheath of claims 1 and 11, wherein the Root reference further teaches a handle coupled to the proximal end of the inner sleeve (Figure 4; 410), but does not specifically teach the handle comprising a valve configured to prevent back bleeding through the proximal end of the inner sleeve. However, the Mauch reference teaches a telescopic sheath and a method of manufacturing the telescopic sheath including a handle that may include a hemostatic valve in the handle ([¶ 0031]). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to have the handle of the Root and Meyer combination reference include a hemostatic valve as in the Mauch reference, that is configured to prevent back bleeding through the proximal end of the inner sleeve, the valve further being associated with the fluid seal, to allow the intrabody catheter introduced through the telescopic sheath to be locked at the proximal ends together along the longitudinal axis (Mauch; [¶ 0031]). Claim(s) 9 and 19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Root et al. (US 2014/0249562, hereinafter Root) in view of Meyer et al. (US 2014/0180127, hereinafter Meyer) as applied to claims 1, 3-4, 11, and 13-14 above, and further in view of West et al. (US 2001/0001813, hereinafter West). Concerning claims 9 and 19, the combination of the Root and Meyer references as discussed above teaches the he telescopic sheath and the method of manufacturing the telescopic sheath of claims 1 and 11, but does not specifically teach a length of the inner sleeve, from the distal end to the proximal end of the inner sleeve being less than 50 cm. However, the West reference teaches a telescoping dilator similar to that of the Root and Meyer references, wherein the West reference teaches that the length of the system may be 10 cm to 25 cm. ([¶ 0014]). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to have the introducer sheath of the Root and Meyer combination be 10 cm to 25 cm, which is less than 50 cm given the West reference teaches that this is an appropriate length for a vascular dilator (West; [¶ 0014]). Allowable Subject Matter Claim 10 is objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARTIN TRUYEN TON whose telephone number is (571)270-5122. The examiner can normally be reached Monday - Friday; EST 10:00 AM - 6:30 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, 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. /MARTIN T TON/Examiner, Art Unit 3771 5/12/2026
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Prosecution Timeline

May 08, 2023
Application Filed
Jun 02, 2025
Non-Final Rejection mailed — §102, §103
Sep 02, 2025
Response Filed
Jan 02, 2026
Final Rejection mailed — §102, §103
Feb 20, 2026
Response after Non-Final Action
Apr 01, 2026
Request for Continued Examination
Apr 22, 2026
Response after Non-Final Action
May 14, 2026
Non-Final Rejection mailed — §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

3-4
Expected OA Rounds
62%
Grant Probability
97%
With Interview (+35.0%)
3y 6m (~5m remaining)
Median Time to Grant
High
PTA Risk
Based on 525 resolved cases by this examiner. Grant probability derived from career allowance rate.

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