Medical devices with sensing characteristics for intravascular treatment sites and methods thereof

Patent metadata

Field	Value
Publication number	US-11944505-B2
Application number	US-202117450965-A
Country	US
Kind code	B2
Filing date	Oct 14, 2021
Priority date	Oct 14, 2020
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

The present disclosure relates to medical devices including occlusion devices, clot retrieval systems, and stents. More particularly, the medical devices described herein measure characteristics for intravascular treatment sites. The medical devices may include pressure sensors and/or length sensors that may be used to determine the effectiveness of the medical devices during or after treatment. These sensors may be particularly helpful when used on an occlusion device or a clot removal device.

First claim

What is claimed is:

1. An occlusion device for occluding a space within a patient, comprising:
an implant body; and,
a distance sensor that measures a distance between a distal portion of the implant body and a proximal portion of the implant body.

2. The occlusion device of claim 1 , wherein the distance sensor comprises an antenna having one or more wires connected at the distal portion of the implant body and at the proximal portion of the implant body.

3. The occlusion device of claim 2 , wherein two regions of the one or more wires are configured to create a point of contact and wherein the location of the point of contact moves as the distance between the distal portion and the proximal portion of the implant body decreases.

4. The occlusion device of claim 2 , wherein the one or more wires are configured to change size and/or shape as the distance between the distal portion and the proximal portion of the implant body decreases.

5. The occlusion device of claim 2 , wherein the antenna is positioned within a lumen of the implant body.

6. The occlusion device of claim 1 , wherein the distance sensor is configured to independently measure a first distance of a proximal half of the implant body and a second distance of a distal half of the implant body.

7. The occlusion device of claim 6 , further comprising a first antenna positioned within the proximal half of the implant body and a second antenna positioned within the distal half of the implant body.

8. The occlusion device of claim 2 , further comprising an RFID circuit connected to the antenna; wherein the RFID circuit is configured to transmit identification data.

9. The occlusion device of claim 2 , further comprising a measurement device configured to determine a resonate frequency of the antenna.

10. The occlusion device of claim 7 , wherein the measurement device includes a spectrum analyzer configured to transmit a plurality of wireless frequencies and monitor for a return loss signal indicating a resonant frequency of the antenna.

11. An occlusion device for occluding a space within a patient, comprising:
an implant body; and,
a sensor measuring a distance between a first end region of the implant body and a second end region of the implant body.

12. The occlusion device of claim 11 , wherein the sensor comprises an antenna having one or more wires connected at the first end region of the implant body and at the second end region of the implant body.

13. The occlusion device of claim 12 , wherein two wire regions of the one or more wires create a point of contact and wherein the location of the point of contact moves as the distance between the first end region and the second end region of the implant body decreases.

14. The occlusion device of claim 12 , wherein the one or more wires change size and/or shape as the distance between the first end region and the second end region of the implant body decreases.

15. The occlusion device of claim 12 , wherein the antenna is positioned within a lumen of the implant body.

16. The occlusion device of claim 12 , further comprising an RFID circuit connected to the antenna; wherein the RFID circuit transmits identification data.

17. The occlusion device of claim 12 , further comprising a measurement device that determines a resonate frequency of the antenna.

18. The occlusion device of claim 11 , wherein the sensor independently measures a first distance of a proximal portion of the implant body and a second distance of a distal portion of the implant body.

19. The occlusion device of claim 18 , further comprising a first antenna positioned within the proximal portion of the implant body and a second antenna positioned within the distal portion of the implant body.

20. An occlusion device for occluding a space within a patient, comprising:
an implant body; and,
a sensor means for measuring a distance between a first end region of the implant body and a second end region of the implant body.

Assignees

• Microvention Inc

Inventors

• Rangwala Hussain
• Dholakia Ronak
• Rye Joseph

Classifications

• A61B90/06 Primary

  Measuring instruments not otherwise provided for · CPC title

• A61B17/12118

  for positioning in conjunction with a stent · CPC title

• A61B17/1214

  Coils or wires · CPC title

• A61B90/98

  using electromagnetic means, e.g. transponders · CPC title

• A61B2017/1205

  Introduction devices · CPC title