# US 11,026,668 B1 · Amnio opening occlusion device with removal element > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,668 B1 - Document ID: US11026668B1 - Status: Granted - Kind: B1 - Application number: 17/191,415 - Filed: 2021-03-03 - Granted: 2021-06-08 - Earliest claimed: 2020-10-02 - Applicants: Ruben Quintero - Inventors: Ruben Quintero - Web page: https://patentgrep.com/patent/US11026668B1 ## CPC - A61B 17/0057: {Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect (sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009)} - A61B 2017/00592: {Elastic or resilient implements} - A61B 2017/00606: {Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening} - A61B 2017/00623: {Introducing or retrieving devices therefor} - A61B 2017/00867: {shape memory effect} - A61B 2017/4216: {Operations on uterus, e.g. endometrium} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A method for fetoscopic surgery using a collapsible medical device for occluding an opening includes a tubular woven metal fabric composed of braided metal strands, said woven metal fabric having an expanded preset configuration comprising an hourglass-shaped element and a waist element at a midpoint, wherein each end of the hourglass-shaped element has a diameter of about 5 mm, wherein the waist element has a diameter that is less than a diameter of each end of the hourglass-shaped element, said woven metal fabric further includes a bulbous element coupled to one end of the hourglass-shaped element via a shaft, wherein the woven metal fabric is deformable to a lesser cross-sectional dimension for delivery through a channel in a patient's body to said opening, and the woven metal fabric having a memory property whereby the medical device returns to said expanded preset configuration when unconstrained. ## Claims ### Claim 1 A method for performing minimally invasive fetal surgical procedures in a patient, the method comprising: a) providing a collapsible medical device comprising: a tubular woven metal fabric comprised of a plurality of braided metal strands, said woven metal fabric having an expanded preset configuration comprising an hourglass-shaped element and a waist at a midpoint of the hourglass-shaped element; wherein each end of the hourglass-shaped element has a diameter of about 5 mm; wherein the waist has a diameter that is less than a diameter of each end of the hourglass-shaped element; said expanded preset configuration of said woven metal fabric further comprising a bulbous element coupled to one end of the hourglass-shaped element via a shaft; wherein the woven metal fabric is deformable to a lesser cross-sectional dimension for delivery through a channel in the patient's body to said opening used for fetoscopic surgery; and the woven metal fabric having a memory property whereby the medical device returns to said expanded preset configuration when unconstrained; b) inserting a delivery tube into an opening used for fetoscopic surgery in the patient's body; c) moving the medical device in a retracted state through the delivery tube and into the opening; d) inserting the medical device in a deployed state into the opening, thereby occluding said opening; e) removing the delivery tube from the patient's body; and f) using the bulbous element to remove the medical device from the opening and the patient. ### Claim 2 (depends on 1) The method of claim 1, wherein the hourglass-shaped element comprises a first cone-shaped element coupled to a second cone-shaped element at a juncture that comprises the waist. ### Claim 3 (depends on 2) The method of claim 2, wherein the first cone-shaped element is oriented in an inverted matter with respect to the second cone-shaped element. ### Claim 4 (depends on 3) The method of claim 3, wherein the shaft is aligned with a longitudinal axis of the first and second cone shaped elements. ### Claim 5 (depends on 4) The method of claim 4, further comprising a clamp located at a distal end of the tubular woven metal fabric, the clamp configured for detachable coupling to a guidewire. ### Claim 6 (depends on 5) The method of claim 5, further comprising a second clamp located at a proximal end of the tubular woven metal fabric, the clamp configured for detachable coupling to a guidewire. ### Claim 7 A method for performing minimally invasive fetal surgical procedures in a patient, the method comprising: a) providing a collapsible medical device comprising: a tubular woven metal fabric comprised of a plurality of braided metal strands, said woven metal fabric having an expanded preset configuration comprising an hourglass-shaped element and a waist at a midpoint of the hourglass-shaped element, and wherein said woven metal fabric is configured to inhibit cell ingrowth when implanted in the patient; wherein each end of the hourglass-shaped element has a diameter of about 5 mm; wherein the waist has a diameter that is less than a diameter of each end of the hourglass-shaped element; said expanded preset configuration of said woven metal fabric further comprising a bulbous element coupled to one end of the hourglass-shaped element via a shaft; wherein the woven metal fabric is deformable to a lesser cross-sectional dimension for delivery through a channel in the patient's body to said opening used for fetoscopic surgery; and the woven metal fabric having a memory property whereby the medical device returns to said expanded preset configuration when unconstrained; b) inserting a delivery tube into an opening used for fetoscopic surgery in the patient's body; c) moving the medical device in a retracted state through the delivery tube and into the opening; d) inserting the medical device in a deployed state into the opening, thereby occluding said opening; e) removing the delivery tube from the patient's body; and f) using the bulbous element to remove the medical device from the opening and the patient's body. ### Claim 8 (depends on 7) The method of claim 7, wherein the hourglass-shaped element comprises a first cone-shaped element coupled to a second cone-shaped element at a juncture that comprises the waist. ### Claim 9 (depends on 8) The method of claim 8, wherein the first cone-shaped element is oriented in an inverted matter with respect to the second cone-shaped element. ### Claim 10 (depends on 9) The method of claim 9, wherein the shaft is aligned with a longitudinal axis of the first and second cone shaped elements. ### Claim 11 (depends on 10) The method of claim 10, further comprising a clamp located at a distal end of the tubular woven metal fabric, the clamp configured for detachable coupling to a guidewire. ### Claim 12 (depends on 11) The method of claim 11, further comprising a second clamp located at a proximal end of the tubular woven metal fabric, the clamp configured for detachable coupling to a guidewire. ### Claim 13 A method for performing minimally invasive fetal surgical procedures in a patient, the method comprising: a) providing a collapsible medical device comprising: a tubular woven metal fabric comprised of a plurality of braided metal strands, said woven metal fabric having an expanded preset configuration comprising an hourglass-shaped element and a waist at a midpoint of the hourglass-shaped element, and wherein said woven metal fabric is configured to inhibit cell ingrowth when implanted in the patient; wherein each end of the hourglass-shaped element has a diameter of about 5 mm; wherein the waist has a diameter that is less than a diameter of each end of the hourglass-shaped element; said expanded preset configuration of said woven metal fabric further comprising a bulbous element coupled to one end of the hourglass-shaped element via a shaft, wherein said bulbous element is configured for grabbing with forceps; wherein the woven metal fabric is deformable to a lesser cross-sectional dimension for delivery through a channel in the patient's body to said opening used for fetoscopic surgery; and the woven metal fabric having a memory property whereby the medical device returns to said expanded preset configuration when unconstrained; b) inserting a delivery tube into an opening used for fetoscopic surgery in the patient's body; c) moving the medical device in a retracted state through the delivery tube and into the opening; d) inserting the medical device in a deployed state into the opening, thereby occluding said opening; e) removing the delivery tube from the patient's body; and f) using the bulbous element to remove the medical device from the opening and the patient's body. ### Claim 14 (depends on 13) The method of claim 13, wherein the hourglass-shaped element comprises a first cone-shaped element coupled to a second cone-shaped element at a juncture that comprises the waist. ### Claim 15 (depends on 14) The method of claim 14, wherein the first cone-shaped element is oriented in an inverted matter with respect to the second cone-shaped element. ### Claim 16 (depends on 15) The method of claim 15, wherein the shaft is aligned with a longitudinal axis of the first and second cone shaped elements. ### Claim 17 (depends on 16) The method of claim 16, further comprising a clamp located at a distal end of the tubular woven metal fabric, the clamp configured for detachable coupling to a guidewire.