Douglas M Ball

US Patent:

7935077, May 3, 2011

Filed:

Sep 28, 2005

Appl. No.:

11/237558

Inventors:

Eric Joel Thor - Arden Hills MN, US
Michael John Bonnette - Minneapolis MN, US
Nicole Jaye Aasen - Minneapolis MN, US
Martyn Stuart Abbott - Dallas TX, US
Douglas James Ball - Coon Rapids MN, US
Walter Charles Croll - Maplewood MN, US
David Charles Cummings - Richardson TX, US
Chad Nicholas Grant - San Diego CA, US
Mark Alfred Hilse - Ham Lake MN, US
James Fredrick Karpinski - Blaine MN, US
Daniel Joseph Kneip - Anna TX, US
Jeffrey William Rogers - Plano TX, US
John Lloyd Teschendorf - Lino Lakes MN, US
Stephen Earl Weisel - Montrose MN, US
David Woodruff West - Richardson TX, US

Assignee:

Medrad, Inc. - Indianola PA

International Classification:

A61M 31/00
A61N 1/30

US Classification:

604 67, 604 19, 604 65

Abstract:

A thrombectomy catheter deployment system which greatly simplifies setup procedures and operation of a thrombectomy catheter includes a stand alone drive unit and a disposable pump/catheter assembly which is manually placed into a carriage assembly in the drive unit. The pump/catheter assembly has a plurality of preconnected components including tubular structure and a thrombectomy catheter connected thereto and is transported into or out of the interior of the drive unit for automatic high pressure pump piston head engagement or disengagement with a reciprocating linear actuator and for automatic engagement or disengagement of an effluent waste tube with a roller pump. A barcode reader senses specific operational data pertaining to an individual pump and provides an interface for operation of the reciprocating linear actuator. A bubble trap incorporated for effective debubbling of saline solution is closely coupled to an insert molded pump having an improved valve arrangement. A spiked bag with large tubing is incorporated for bubble-free transfer of saline.

US Patent:

7996974, Aug 16, 2011

Filed:

Jul 16, 2008

Appl. No.:

12/174125

Inventors:

Debra M. Kozak - Forest Lake MN, US
Douglas J. Ball - Coon Rapids MN, US
Eric J. Thor - Arden Hills MN, US
David B. Morris - Anoka MN, US
Michael J. Bonnette - Minneapolis MN, US
Stephen E. Weisel - Brook Park MN, US

Assignee:

MEDRAD, Inc. - Indianola PA

International Classification:

B21D 39/00
B23P 17/00
A61M 37/00

US Classification:

2940709, 29458, 29508, 29516, 29517, 604131

Abstract:

The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube.

US Patent:

8012117, Sep 6, 2011

Filed:

Feb 6, 2007

Appl. No.:

11/702990

Inventors:

Michael J. Bonnette - Minneapolis MN, US
Eric J. Thor - Arden Hills MN, US
Debra M. Kozak - Forest Lake MN, US
David B. Morris - Anoka MN, US
John L. Teschendorf - Lino Lakes MN, US
Douglas J. Ball - Coon Rapids MN, US
Stephen E. Weisel - Brook Park MN, US

Assignee:

Medrad, Inc. - Indianola PA

International Classification:

A61M 1/00
A61B 17/20

US Classification:

604 22, 604 35

Abstract:

The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube.

US Patent:

8162878, Apr 24, 2012

Filed:

Dec 5, 2005

Appl. No.:

11/294006

Inventors:

Michael John Bonnette - Minneapolis MN, US
Eric Joel Thor - Arden Hills MN, US
Douglas James Ball - Coon Rapids MN, US
Debra M. Kozak - Forest Lake MN, US

Assignee:

MEDRAD, Inc. - Indianola PA

International Classification:

A61M 29/00
A61M 31/00
A61B 17/22

US Classification:

604 9801, 606159, 606194, 604509

Abstract:

An exhaust-pressure-operated balloon catheter system which is a cross stream thrombectomy catheter, such as, but not limited to, an Angiojet catheter with a flexible and expandable balloon, wherein the balloon is formed from and is continuous with the catheter tube which, in part, forms the cross stream thrombectomy catheter, wherein the balloon is deployable and expandable about the distal region of the cross stream thrombectomy catheter to act as an occluder device, and wherein the balloon is located proximal to the fluid jet emanator and inflow and outflow orifices upstream of ablative cross stream flows. The balloon is expandably deployed by the exhaust or back pressure created by the operation of the cross stream flows as generated by the fluid jets of the operating exhaust-pressure-operated balloon catheter system.

US Patent:

8353858, Jan 15, 2013

Filed:

Jun 3, 2010

Appl. No.:

12/793121

Inventors:

Debra M. Kozak - Forest Lake MN, US
Michael J. Bonnette - Minneapolis MN, US
Eric J. Thor - Arden Hills MN, US
David B. Morris - Anoka MN, US
John L. Teschendorf - Lino Lakes MN, US
Douglas J. Ball - Blaine MN, US
Stephen E. Weisel - Brook Park MN, US
Michael Schrom - Wyoming Township MN, US

Assignee:

Medrad, Inc. - Indianola PA

International Classification:

A61N 1/30

US Classification:

604 19

Abstract:

Catheters including guidewire tubes having a limited length and methods of using the catheters are described. The catheters may be delivered over guidewires in procedures that are commonly referred to as rapid-exchange delivery. In some embodiments, the catheters may be miniature flexible thrombectomy catheters that may be used to remove thrombus or other unwanted material from a body blood vessel or other small regions of body cavities in which the distal portion of the catheter has smaller external dimensions than the larger proximal portion.

US Patent:

8491523, Jul 23, 2013

Filed:

May 2, 2011

Appl. No.:

13/098946

Inventors:

Eric Joel Thor - Arden Hills MN, US
Michael John Bonnette - Minneapolis MN, US
Nicole Jaye Aasen - Minneapolis MN, US
Martyn Stuart Abbott - Dallas TX, US
Douglas James Ball - Coon Rapids MN, US
Walter Charles Croll - Maplewood MN, US
David Charles Cummings - Richardson TX, US
James Fredrick Karpinski - Blaine MN, US
Daniel Joseph Kneip - Anna TX, US
Jeffrey William Rogers - Plano TX, US
John Lloyd Teschendorf - Lino Lakes MN, US
Stephen Earl Weisel - Montrose MN, US
David Woodruff West - Richardson TX, US

Assignee:

Medrad, Inc. - Indianola PA

International Classification:

A61M 31/00
A61N 1/30

US Classification:

604 67, 604 19, 604 65

Abstract:

Methods of conducting thrombectomy procedures and deploying a thrombectomy catheter are disclosed. A thrombectomy procedure is conducted with a thrombectomy catheter deployment system. A drive unit configured to operate an infusion pump is provided. The drive unit is operable according to one or more operating modes. A preconnected and consolidated pump and catheter assembly configured for loading in the drive unit is also provided. The assembly is separate from the drive unit prior to loading. The infusion pump and a catheter of the assembly are in communication prior to loading. The assembly provides one or more digital instructions to the drive unit. The drive unit is operable according to the one or more operating modes referenced by the one or more digital instructions. The assembly is loaded into the drive unit, and the drive unit is engaged to the infusion pump for operation of the infusion pump.

US Patent:

8608703, Dec 17, 2013

Filed:

Oct 30, 2007

Appl. No.:

11/980164

Inventors:

John C. Riles - Minneapolis MN, US
Douglas J. Ball - Coon Rapids MN, US
Michael J. Bonnette - Minneapolis MN, US
Eric J. Thor - Arden Hills MN, US
John L. Teschendorf - Lino Lakes MN, US
Hieu V. Le - Brooklyn Park MN, US

Assignee:

Medrad, Inc. - Indianola PA

International Classification:

A61M 5/178
A61M 25/00
A61B 17/22
A61D 1/02

US Classification:

60416706, 60416413, 60417002, 604524, 606159

Abstract:

An infusion flow guidewire system and method of use. The infusion flow guidewire system includes a delivery sheath and an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a flexible tip having a closed distal end, a coil, a core wire and at least one distally located jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.

US Patent:

8647294, Feb 11, 2014

Filed:

Mar 20, 2009

Appl. No.:

12/933520

Inventors:

Michael J. Bonnette - Minneapolis MN, US
Eric J. Thor - Arden Hills MN, US
Debra M. Kozak - Forest Lake MN, US
Douglas J. Ball - Blaine MN, US
Stephen E. Weisel - Brook Park MN, US
David B. Morris - Anoka MN, US

Assignee:

MEDRAD, Inc. - Indianola PA

International Classification:

A61B 17/20
A61M 31/00
A61M 37/00
A61M 5/00
A61M 25/00
A61M 5/32

US Classification:

604 22, 604 9301, 604 9502, 604181, 604264, 604266

Abstract:

A direct stream hydrodynamic catheter system is provided for the removal of thrombus, lesions and the like including provisions for the infusion of drugs, lysing fluids and the like into a blood vessel. Physician controlled high powered direct fluid jet streams emanate from a fluid jet emanator in the form of robust radially directed fluid jet streams to impinge upon and ablate difficult and strong thrombus or lesions within a blood vessel. Effluent aspiration is controlled by an exhaust regulator in the form of a roller pump, but effluent removal can be assistingly influenced by the fluid pressure associated with the radially directed fluid jet streams.