IP Library › Granted Patent US 12,490,967
Granted Patent B2
US 12,490,967 · App. 18/444,925 · Granted Dec 9, 2025

Tissue-spreader assembly

Inventor: Christian Balkovec (Cambridge, CA)
Assignee: Boston Scientific Medical Device Limited
A61B17/02
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Quick Facts
Patent No.
US 12,490,967
App. No.
18/444,925
Granted
Dec 9, 2025
Kind
B2
Abstract

A tissue-spreader assembly is configured to be selectively inserted into a patient having a first biological tissue and a second biological tissue, and to be maneuvered proximate to the second biological tissue. The tissue-spreader assembly is also configured to selectively engage, at least in part, an area of the second biological tissue without engaging the first biological tissue. The tissue-spreader assembly is also configured to selectively spread, at least in part, the area of the second biological tissue, and maintain the area of the second biological tissue in a spread-apart condition after the tissue-spreader assembly, in use, selectively engages, at least in part, the area of the second biological tissue.

Claims (67)

1 . An apparatus, comprising:

a tissue-spreader assembly configured to be selectively inserted into a patient having a first biological tissue and a second biological tissue being positioned over the first biological tissue, and to be maneuvered proximate to the second biological tissue; and

the tissue-spreader assembly further configured to selectively engage an area of the second biological tissue without engaging the first biological tissue after the tissue-spreader assembly, in use, is maneuvered proximate to the second biological tissue; and

the tissue-spreader assembly also configured to provide a guide path for an ancillary device;

wherein the tissue-spreader assembly includes:

a first tube;

a second tube configured to be received within the first tube, wherein the second tube includes the guide path; and

prongs configured to selectively engage or spread the area of the second biological tissue, the prongs surrounding a circumferential surface of the second tube.

2 . The apparatus of claim 1 , wherein:

the first tube and the second tube are coaxially aligned with each other after the second tube is received within, and along, the longitudinal length of the first tube.

3 . The apparatus of claim 1 , wherein:

the tissue-spreader assembly includes:

prongs movable between an undeployed condition and a deployed condition; and

the prongs being configured to engage the area of the second biological tissue.

4 . The apparatus of claim 3 , wherein:

the prongs include:

hollow tubes with open portals being configured to face the second biological tissue; and

said open portals being configured to be embedded into the second biological tissue.

5 . The apparatus of claim 3 , wherein:

the first tube and the second tube being coaxially aligned with each other after the second tube is received within the first tube; and

the prongs extend past a distal end of the second tube after the prongs are moved from the undeployed condition to the deployed condition.

6 . The apparatus of claim 3 , wherein:

the first tube and the second tube being coaxially aligned with each other after the second tube is received within the first tube; and

the first tube is configured to maneuver the prongs from the undeployed condition to the deployed condition, after the first tube is retracted proximally over the second tube.

7 . The apparatus of claim 3 , wherein:

the tissue-spreader assembly includes:

the first tube and the second tube being coaxially aligned with each other after the second tube is received within the first tube; and

biased bowed portions, the prongs extending from the biased bowed portions; and

the biased bowed portions being configured to be positioned between the first tube and the second tube after the tissue-spreader assembly is placed in the undeployed condition; and

the biased bowed portions also being configured to be compressed after the tissue-spreader assembly is placed in the undeployed condition.

8 . The apparatus of claim 7 , wherein:

positioned on an outer surface of the second tube are support grooves; and

the support grooves respectively correspond to bowed portions; and

the support grooves are configured to receive and support the biased bowed portions after the support bowed portions are positioned in the undeployed condition.

9 . The apparatus of claim 8 , wherein:

the prongs extend from the biased bowed portions; and

the prongs terminate at a location distal to an end portion of the second tube.

10 . The apparatus of claim 7 , wherein:

the first tube is configured to force compression of the biased bowed portions against the second tube once the first tube is moved to cover the biased bowed portions.

11 . The apparatus of claim 7 , wherein:

the first tube is configured to reduce a bow angle formed by the biased bowed portions.

12 . The apparatus of claim 7 , wherein:

the biased bowed portions are set to a shape that bows outwards from the second tube near a distal end of the second tube once the first tube is moved along the patient; and

the first tube is configured to compress and conform the biased bowed portions to an outer surface of the second tube after the first tube is positioned over top of the biased bowed portions.

13 . The apparatus of claim 7 , wherein:

the biased bowed portions are configured to return from a stressed condition to a relaxed condition after the first tube is moved to expose an outer surface of the second tube.

14 . The apparatus of claim 1 , wherein:

the guide path is configured to guide an ancillary device toward the area of the second biological tissue while the area of the second biological tissue remains spread apart by the tissue-spreader assembly and while the first biological tissue remains unengaged with the tissue-spreader assembly.

15 . The apparatus of claim 14 , wherein:

the tissue-spreader assembly also configured to selectively disengage from the area of the second biological tissue after the ancillary device has completed application of treatment to the area of the second biological tissue.

16 . The apparatus of claim 14 , wherein:

the ancillary device being configured to treat the area of the second biological tissue while the area of the second biological tissue remains spread apart by the tissue-spreader assembly.

17 . The apparatus of claim 14 , wherein:

the ancillary device is configured to contact the area of the second biological tissue without contacting the first biological tissue after the area of the second biological tissue is spread apart by the tissue-spreader assembly; and

the ancillary device includes a puncture device configured to impart a puncture force sufficient for puncturing the second biological tissue without puncturing the first biological tissue after the area of the second biological tissue is selectively spread apart by the tissue-spreader assembly.

18 . An apparatus, comprising:

a tissue-spreader assembly configured to be selectively inserted into a patient having a first biological tissue and a second biological tissue being positioned proximate to the first biological tissue, and to be maneuvered proximate to the second biological tissue; and

the tissue-spreader assembly further configured to selectively engage an area of the second biological tissue without engaging the first biological tissue after the tissue-spreader assembly, in use, is maneuvered proximate to the second biological tissue; wherein:

the tissue-spreader assembly includes:

hollow tubes being movable between an undeployed condition and a deployed condition; and

the hollow tubes including open portals being configured to engage the area of the second biological tissue.

19 . An apparatus, comprising:

a tissue-spreader assembly configured to be selectively inserted into a patient having a first biological tissue and a second biological tissue being positioned proximate to the first biological tissue, and to be maneuvered proximate to the second biological tissue; and

the tissue-spreader assembly further configured to selectively engage an area of the second biological tissue without engaging the first biological tissue after the tissue-spreader assembly, in use, is maneuvered proximate to the second biological tissue; wherein:

the tissue-spreader assembly includes:

a first tube and a second tube; wherein:

positioned on an outer surface of the second tube are spaced-apart support grooves configured to receive and support biased bowed portions.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2024
From: BAYLIS MEDICAL COMPANY INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 067166/0023 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2024
From: BALKOVEC, CHRISTIAN
To: BAYLIS MEDICAL COMPANY INC.
Reel/Frame 067137/0769 →
Continuity (3)
Continuation 17350075 · Jun 17, 2021
Provisional Application 63040593 · Jun 18, 2020
Related Publication 20240245393A1 · Jul 25, 2024
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