Shixin Chen from Pleasanton, CA, age 49

Us Patents

Steerable And Curvable Vertebroplasty System With Clog-Resistant Exit Ports
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US Patent:

20120158004, Jun 21, 2012
Filed:

Jul 13, 2011
Appl. No.:

13/182335
Inventors:

Keith Burger - San Francisco CA, US
Joshua Cheatwood - Windsor CA, US
Shixin Chen - Santa Rosa CA, US
International Classification:

A61B 17/88
US Classification:

606 94
Abstract:

Methods and devices for augmenting bone, such as in performing vertebroplasty are disclosed. A bone cement injection needle is provided, having a laterally deflectable distal end. The distal end may be provided with one or two or more cavity creation elements, such as a bevel or diamond tip or inflatable balloons. A cavity creation element may include one or more filament layers. Systems are also disclosed, including the steerable and curvable injection needle, introducer and stylet. The system can also include various exit ports that can be configured with clog-resistant features. Methods are also disclosed.

Steerable Curvable Vertebroplasty Drill
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US Patent:

20120191095, Jul 26, 2012
Filed:

Aug 22, 2011
Appl. No.:

13/215098
Inventors:

Keith Burger - San Francisco CA, US
Shixin Chen - Santa Rosa CA, US
Joshua Cheatwood - Windsor CA, US
International Classification:

A61B 17/16
US Classification:

606 80
Abstract:

Disclosed herein is a steerable and curvable drill that can be used for various applications including vertebroplasty. The drill can include an elongate, tubular body, having a proximal end, a distal end, and a central lumen extending therethrough; a deflectable zone on the distal end of the tubular body including one or more laser cuts, deflectable through an angular range; an insertable wire insertable into at least a portion of the central lumen of the elongate, tubular body; a handle on the proximal end of the tubular body; a deflection control on the handle; a drill control on the handle; a drive shaft within the elongate tubular body having a proximal end and a distal end; and a boring element on the distal end of the device for creating a cavity within bone. The boring element can be operably connected to the distal end of the drive shaft via a crimping mechanism. Systems and methods involving the drill are also disclosed.

Steerable And Curvable Cavity Creation System
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US Patent:

20130345709, Dec 26, 2013
Filed:

Jan 8, 2013
Appl. No.:

13/736871
Inventors:

Joshua Cheatwood - Windsor CA, US
Shixin Chen - Santa Rosa CA, US
Assignee:

Osseon Therapeutics, Inc. - Santa Rosa CA
International Classification:

A61B 17/88
US Classification:

606 94
Abstract:

Methods and devices for augmenting bone, such as in performing vertebroplasty are disclosed. A bone cement injection needle is provided, having a laterally deflectable distal end. Systems are also disclosed, including the steerable and curvable injection needle, introducer and stylet. The system can also include various exit ports that can be configured with clog-resistant features, such as an obturator. Steerable cavity creation systems and methods are also disclosed.

Systems For Wearable Infusion Port And Associated Pump
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US Patent:

20220265919, Aug 25, 2022
Filed:

May 2, 2022
Appl. No.:

17/734764
Inventors:

- Northridge CA, US
Shixin Chen - Simi Valley CA, US
Magnus Johansson - Oak Park CA, US
Louis J. Lintereur - Boise ID, US
Austin Reeder - Los Angeles CA, US
Peter Schultz - Chatsworth CA, US
International Classification:

A61M 5/142
Abstract:

A pump for delivering a fluid includes a pump housing that defines at least one reservoir having a circumferentially open first end, a circumferentially closed second end and a chamber to receive the fluid. The pump includes a plunger assembly having at least one plunger arm and a cannula fluidly coupled to the plunger arm to dispense the fluid from the pump. The plunger arm is receivable within the first end of the reservoir, and the at least one plunger arm defining an internal conduit to receive the fluid from the at least one fluid reservoir. The internal conduit is fluidly coupled to the cannula. The plunger assembly is movable in a first direction relative to the pump housing to advance the plunger arm within the fluid reservoir to dispense the fluid from the fluid reservoir out of the pump via the cannula.

Physiological Characteristic Sensor System
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US Patent:

20210378560, Dec 9, 2021
Filed:

Jun 4, 2020
Appl. No.:

16/892854
Inventors:

- Northridge CA, US
Matthew William Yavorsky - Granada Hills CA, US
Manolo Colon Diaz - Aguadilla PR, US
Eric Allan Larson - Simi Valley CA, US
Shixin Chen - Simi Valley CA, US
International Classification:

A61B 5/145
A61B 5/1486
A61B 5/00
Abstract:

A physiological characteristic sensor system includes a physiological characteristic sensor. The physiological characteristic sensor includes a housing having a first housing portion coupled to a second housing portion, and an antenna coupled to the first housing portion. The physiological characteristic sensor system includes a sensor inserter configured to be coupled to the physiological characteristic sensor. The sensor inserter includes a sensor retainer, and the sensor retainer is configured to couple to the second housing portion in a second state to couple the physiological characteristic sensor to the sensor inserter.

Systems For Wearable Infusion Port And Associated Pump
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US Patent:

20210154394, May 27, 2021
Filed:

Nov 21, 2019
Appl. No.:

16/691506
Inventors:

- Northridge CA, US
Shixin Chen - Simi Valley CA, US
Magnus Johansson - Oak Park CA, US
Louis J. Lintereur - Stevenson Ranch CA, US
Austin Reeder - Los Angeles CA, US
Peter Schultz - Chatsworth CA, US
International Classification:

A61M 5/142
A61M 5/168
Abstract:

A wearable infusion port for infusing a fluid includes a first housing that defines an inlet port to receive the fluid, and a second housing coupled to the first housing. The second housing is to be coupled to an anatomy. The wearable infusion port includes a valve assembly fluidly coupled to the inlet port, and the valve assembly is movable from a closed state to an opened state to dispense the fluid. The wearable infusion port includes a cannula assembly extending through the first housing and the second housing, and the cannula assembly includes a cannula fluidly coupled to the valve assembly. The cannula is to be coupled to the anatomy. The wearable infusion port includes a flow sensor fluidly coupled to the inlet port and the cannula. The flow sensor is fluidly coupled upstream from the cannula to observe an amount of fluid received by the cannula.

Systems For Wearable Infusion Port And Associated Pump
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US Patent:

20210154395, May 27, 2021
Filed:

Nov 21, 2019
Appl. No.:

16/691513
Inventors:

- Northridge CA, US
Shixin Chen - Simi Valley CA, US
Magnus Johansson - Oak Park CA, US
Louis J. Lintereur - Stevenson Ranch CA, US
Austin Reeder - Los Angeles CA, US
Peter Schultz - Chatsworth CA, US
International Classification:

A61M 5/142
Abstract:

A pump for delivering a fluid includes a pump housing that defines at least one reservoir having a circumferentially open first end, a circumferentially closed second end and a chamber to receive the fluid. The pump includes a plunger assembly having at least one plunger arm and a cannula fluidly coupled to the plunger arm to dispense the fluid from the pump. The plunger arm is receivable within the first end of the reservoir, and the at least one plunger arm defining an internal conduit to receive the fluid from the at least one fluid reservoir. The internal conduit is fluidly coupled to the cannula. The plunger assembly is movable in a first direction relative to the pump housing to advance the plunger arm within the fluid reservoir to dispense the fluid from the fluid reservoir out of the pump via the cannula.

Steerable Curvable Vertebroplasty Drill
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US Patent:

20200022709, Jan 23, 2020
Filed:

May 20, 2019
Appl. No.:

16/417502
Inventors:

- South Jordan UT, US
Joshua Cheatwood - Windsor CA, US
Shixin Chen - Santa Rosa CA, US
International Classification:

A61B 17/16
A61B 17/88
Abstract:

Disclosed herein is a steerable and curvable drill that can be used for various applications including vertebroplasty. The drill can include an elongate, tubular body, having a proximal end, a distal end, and a central lumen extending therethrough; a deflectable zone on the distal end of the tubular body including one or more laser cuts, deflectable through an angular range; an insertable wire insertable into at least a portion of the central lumen of the elongate, tubular body; a handle on the proximal end of the tubular body; a deflection control on the handle; a drill control on the handle; a drive shaft within the elongate tubular body having a proximal end and a distal end; and a boring element on the distal end of the device for creating a cavity within bone. The boring element can be operably connected to the distal end of the drive shaft via a crimping mechanism. Systems and methods involving the drill are also disclosed.