US 11,026,669 B2Granted

Collapsible dilator

AssigneeMedtronic Vascular, Inc.

InventorsBrian Castelli, Michael Krivoruchko

Life of this patent

Estimating the term…

Loading patent…

Abstract

In some examples, an introducer apparatus includes an outer elongated member defining a lumen extending therethrough, the lumen having a lumen dimension in cross-section, and a dilator configured to be received within the lumen of the outer elongated member, the dilator may comprise a proximal section, a distal section comprising a distal end of the dilator, and an intermediate section disposed between the proximal section and the tapered distal section. In some examples, the intermediate section may define a through-opening that configures the intermediate section to be collapsible from an expanded configuration to a collapsed configuration. In the collapsed configuration, the intermediate section may have a first dilator dimension in cross-section that is less than a second dilator dimension in cross-section when the intermediate section is in the expanded configuration.

Claims30

Dependent claims

A device comprising:

an outer elongated member defining a lumen and a first sloping wall;
and
a dilator configured to be received within the lumen of the outer elongated member, the dilator comprising:
a distal section;
a proximal section;
an intermediate section integrally formed with the distal section and the proximal section between the distal section and the proximal section, the intermediate section defining a second sloping wall;
wherein, in an assembled configuration of the outer elongated member and the dilator, the second sloping wall is seated against the first sloping wall;
and
a guidewire lumen extending from the proximal section to the distal section, through the proximal, intermediate and distal sections;
wherein the intermediate section defines a through-opening that configures the intermediate section to be collapsible from an expanded configuration to a collapsed configuration;
wherein, the dilator is configured such that as the intermediate section transitions from the collapsed configuration to the expanded configuration, only the intermediate section of the dilator expands in diameter;
further wherein the guidewire lumen is bifurcated by the through-opening.

9 more elements

An apparatus comprising:

an outer elongated member defining a lumen extending therethrough, the lumen having a lumen dimension in cross-section;
and
a dilator configured to be received within the lumen of the outer elongated member, the dilator comprising:
a proximal section;
a distal section;
an intermediate section integrally formed with the distal section and the proximal section between the distal section and the proximal section;
and
a guidewire lumen extending from the proximal section to the distal section, through the proximal, intermediate and distal sections;
and
wherein the intermediate section defines a through-opening that configures the intermediate section to be collapsible from an expanded configuration to a collapsed configuration, wherein in the collapsed configuration, the intermediate section has a dilator dimension in cross-section that is less than or equal to the lumen dimension;
wherein, the dilator is configured such that as the intermediate section transitions from the collapsed configuration to the expanded configuration, only the intermediate section of the dilator expands in diameter;
further wherein the guidewire lumen is bifurcated by the through-opening;
wherein, in an assembled configuration of the outer elongated member and the dilator, the outer elongated member and dilator abut to collectively define a substantially continuous outer diameter.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/648,512Filed 13 Jul 2017
Published: US 2019/0015088 A117 Jan 2019
Granted: 8 Jun 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 17/02
Surgical instruments, devices or methods: for holding wounds open, e.g. retractors; Tractors
A61B 17/22
Surgical instruments, devices or methods: implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out…
A61B 17/34
Surgical instruments, devices or methods: trocars; Puncturing needles
A61B 17/3417
Trocars; Puncturing needles: details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating

Family

US 2019/0015088 A1Pre-grant publication · published 17 Jan 2019
US 11,026,669 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key