Method for enabling modular part replacement within an electron microscope sample holder

Patent metadata

Field	Value
Publication number	US-2016336144-A1
Application number	US-201615154157-A
Country	US
Kind code	A1
Filing date	May 13, 2016
Priority date	May 13, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

An electron microscope sample holder that includes at least one capillary having a sufficient inner diameter to act as a catheter pathway that allows objects that can be accommodated within the at least one capillary to be replaced or swapped with other objects. The sample holder having at least one capillary allows the user to insert and remove temporary fluidic pathways, sensors or other tools without the need to dissemble the holder.

First claim

What is claimed is:

1 . An electron microscope sample holder comprising an end, a barrel, a specimen tip, and at least one capillary that travels from the end of the sample holder along the barrel to the specimen tip, wherein the at least one capillary has an inner diameter that accommodates a small form factor object selected from the group consisting of removable tubing, sensors, tools, electrodes, and combinations thereof.

2 . The sample holder of claim 1 , wherein the specimen tip comprises a fluidic reservoir and the at least one capillary terminates (a) in the specimen tip between the barrel and the fluidic reservoir, (b) at the interface of the specimen tip and the barrel, or (c) in the fluidic reservoir.

3 . The sample holder of claim 1 , comprising two or three capillaries.

4 . The sample holder of claim 3 , wherein each capillary accommodates the same or different small form factor object therein.

5 . The sample holder of claim 1 , wherein at least one small form factor object has an outer diameter that is less than the inner diameter of the at least one capillary so the at least one small form factor object can be inserted into and removed from the at least one capillary.

6 . The sample holder of claim 1 , wherein the at least one capillary is replaceable.

7 . The sample holder of claim 1 , wherein the at least one small form factor object forms a fluid seal against the at least one capillary.

8 . The sample holder of claim 7 , wherein the fluid seal is formed at the end of the at least one capillary or within the at least one capillary.

9 . The sample holder of claim 7 , wherein the fluid seal is selected from the group consisting of elastomeric compression, swaged compression, ferrule compression, barbed seal, and any combination thereof.

10 . The sample holder of claim 1 , wherein the small form factor object has a first end and a second end, wherein the first end is positioned in proximity of a sample in the specimen tip.

11 . The sample holder of claim 10 , wherein the first end comprises a sensor, electrode, tool, or material to be delivered.

12 . The sample holder of claim 10 , wherein the small form factor object is replaceable tubing and wherein the first end is an open tube.

13 . The sample holder of claim 10 , wherein the small form factor object has a preset length, wherein the second end has a securing means for securing the small form factor object in the sample holder.

14 . The sample holder of claim 13 , wherein the securing means comprise a threaded male member that can be inserted into a complimentary female fitting at the end of the sample holder.

15 . The sample holder of claim 13 , wherein the securing means further comprise a connection point for connecting external microfluidic tubing, external cabling, external fiber optics, or any other external electronics or fluid housings to the small form factor object.

16 . The sample holder of claim 1 , wherein the specimen tip comprises a closed cell comprising a closed cell body, a closed cell cover, and at least one gasket.

17 . The sample holder of claim 16 , further comprising at least one MEMS chip in the closed cell.

18 . A method of imaging a sample in an electron microscope, said method comprising positioning a sample in a specimen tip of an electron microscope sample holder, inserting the sample holder comprising the sample in an electron microscope, and imaging the sample in the electron microscope, wherein the electron microscope sample holder comprises an end, a barrel, the specimen tip, and at least one capillary that travels from the end of the sample holder along the barrel to the specimen tip, wherein the at least one capillary has an inner diameter that accommodates a small form factor object selected from the group consisting of removable tubing, sensors, tools, electrodes, and combinations thereof.

19 . A method of preparing an electron microscope sample holder for imaging, said method comprising inserting a small form factor object into a capillary such that a first end of the small form factor object is in close proximity to a sample in a specimen tip of the sample holder, wherein the electron microscope sample holder comprises an end, a barrel, the specimen tip, and at least one capillary that travels from the end of the sample holder along the barrel to the specimen tip, wherein the at least one capillary has an inner diameter that accommodates the small form factor object selected from the group consisting of removable tubing, sensors, tools, electrodes, and combinations thereof.

Assignees

• Protochips Inc

Inventors

• Gardiner Daniel Stephen
• Walden Ii Franklin Stampley
• Damiano Jr John

Classifications

• H01J2237/204

  Means for introducing and/or outputting objects · CPC title

• H01J2237/2003

  Environmental cells · CPC title

• H01J37/26

  Electron or ion microscopes; Electron or ion diffraction tubes · CPC title

• H01J37/20 Primary

  Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support · CPC title

• H01J37/22

  Optical {, image processing} or photographic arrangements associated with the tube · CPC title