JENNIFER CHU
Medical Practice in Haverford, PA

6532390, Mar 11, 2003

Nov 1, 2000

09/702772

Jennifer Chu - Haverford PA 19041
Peter Styles - Bramley Guildford, Surrey GU5 0LQ, GB
Martin Nichols - Old Woking, Surrey GU22 9JU, GB
Robert Hopkins - Old Woking, Surrey GU22 9JU, GB

A61B 1734

607116, 607 48, 606189, 128907

An intramuscular stimulation (IMS) device and method permit electrical and mechanical modes of stimulation to be carried out individually or together. The gun-like stimulation device permits a disposable needle applicator unit including a needle and elongate sheath to be removably attached thereto. Different needle penetration depths are obtainable with a single needle by virtue of a drive carriage with a position selecting element. To help avoid repetitive strain injury to a treating physician, a processor may monitor a body contact sensor and continue an intramuscular stimulation cycle only so long as contact is detected. In order to ensure that only a single IMS operation is performed during a period of body contact, performance of a further intramuscular stimulation cycle may be prevented unless it is determined that body contact was broken at a time following a previous IMS cycle.

5968063, Oct 19, 1999

May 14, 1997

8/856064

Jennifer Chu - Haverford PA
Zhen Guo Yan - Shanghai, CN

A61B 1734

606185

Intramuscular stimulation (IMS) pain relief therapy is facilitated by a hand-held tool which, once positioned against a patient's skin, can be controlled to automatically advance a needle to penetrate the patient's flesh, reciprocate the needle within the patient's flesh a predetermined number of times through a predetermined stroke, and retract the needle. A tubular guide member is provided at its distal end with a skin contact member forming a constricted orifice closely matching the diameter of the needle. The orifice allows substantially free passage of the needle therethrough and at the same time prevents bowing of the needle as it is advanced--a primary source of patient pain. Automation and control of the needle penetration, reciprocation and retraction sequence reduces the amount of manual and mental effort required on the part of the treating physician, thereby allowing physicians to perform IMS procedures more consistently, effectively and efficiently. This leads to better results (increased pain relief), decreased procedure induced patient pain and tissue trauma, and reduced risk of repetitive strain injury to the treating physician.

7877152, Jan 25, 2011

Jul 30, 2007

11/830235

Jennifer Chu - Haverford PA, US

JusJas LLC - Haverford PA

A61N 1/04

607145

A bipolar stimulator probe suitable for application of intramuscular stimulation provides an active stimulator electrode and a reference electrode as part of a single tool. The separation between the electrodes is significantly greater than the electrode separation of known bipolar stimulator probes and bipolar bar electrode configurations. The probe tool may be configured to permit adjustment of the fixed relative position of the electrodes within a given range. By providing a relatively wide spacing between the two electrodes, the tool can be used to approximate the effect of monopolar stimulation with a separate reference electrode, with the electrical stimulus producing less pain to the patient compared to bipolar stimulation where the two electrodes are spaced apart by only 2-4 cm or less.

RE42489, Jun 28, 2011

May 8, 2002

10/140370

Jennifer Chu - Haverford PA, US
Peter Styles - Cranleigh, GB

JusJas LLC - Haverford PA
Oxford Instruments Medical Limited - Eynsham, Whitney, Oxon

A61F 19/00

128898, 128907, 606189, 606167, 606169, 607 48, 607 59, 607 60, 607 61

A modality of twitch obtaining intramuscular stimulation (IMS) pain relief therapy employs an EMG needle having a Teflon coated shaft and exposed conductive tip to apply micro-electrical stimulation locally and focally to muscle motor end plate zones or regions of adjacent motor end plate zones. The electrical stimulation facilitates the elicitation of strong twitch responses from muscle fibers associated with the stimulated motor end plates, generally without requiring physical needle manipulation following the initial pin insertion. Less skill is required to effectively elicit pain relieving twitch responses, thus facilitating training of medical personnel to carry the procedure. Rapid movement between multiple treatment sites is possible allowing treatment of a larger number of afflicted muscles and muscle areas in a single treatment session. The strength and number of twitches obtained at the treatment sites can provide substantial relief from regional and diffuse myofacsial pain of radiculopathic origin. In addition, since physical manipulation of the pin is generally unnecessary, patients experience less pain and discomfort during the procedure, and the risk of repetitive stress injury to the therapist is reduced.

2009020, Aug 13, 2009

Apr 22, 2009

12/428320

Jennifer Chu - Haverford PA, US

Jus-Jas LLC - Haverford PA

A61N 1/04

607115

A bipolar stimulator probe suitable for application of intramuscular stimulation provides an active stimulator electrode and a reference electrode as part of a single tool. The separation between the electrodes is significantly greater than the electrode separation of known bipolar stimulator probes and bipolar bar electrode configurations. The probe tool may be configured to permit adjustment of the fixed relative position of the electrodes within a given range. By providing a relatively wide spacing between the two electrodes, the tool can be used to approximate the effect of monopolar stimulation with a separate reference electrode, with the electrical stimulus producing less pain to the patient compared to bipolar stimulation where the two electrodes are spaced apart by only 2-4 cm or less.

2010025, Oct 7, 2010

Nov 25, 2009

12/625667

Jennifer CHU - Haverford PA, US

JUS-JAS LLC - Haverford PA

A61N 1/04

607145, 607153

Composite electrode pads/plugs are configured to be utilized in an electrical stimulator device, particularly one designed to provide surface-applied electrical twitch obtaining intramuscular stimulation (eToims®). The composite pads/plugs include a porous liquid absorbent (e.g., felt) plug sized to be placed in a receptacle of the stimulator device, and a composite pad of porous liquid absorbent (e.g., cotton) material that covers the plug. In an embodiment, the composite pad is formed of cotton stuffing material encased between two sheets of cotton mesh/pad material. The composite pads/plugs can serve to increase, and improve wetting of, the surface area which contacts the patient and delivers the electrical stimulation. In addition to convenience of application, the disclosed structures have been found to help reduce sharp pain felt by the patient during stimulation, without interfering with the ability of the electricity to penetrate deeply in order to provide effective eToims®.

6058938, May 9, 2000

Jan 23, 1998

9/012425

Jennifer Chu - Haverford PA
Peter Styles - Brookwell, GB

Medelec Limited - Eynsham

A61B 1900

128898

A modality of twitch obtaining intramuscular stimulation (IMS) pain relief therapy employs an EMG needle having a Teflon coated shaft and exposed conductive tip to apply micro-electrical stimulation locally and focally to muscle motor end plate zones or regions of adjacent motor end plate zones. The electrical stimulation facilitates the elicitation of strong twitch responses from muscle fibers associated with the stimulated motor end plates, generally without requiring physical needle manipulation following the initial pin insertion. Less skill is required to effectively elicit pain relieving twitch responses, thus facilitating training of medical personnel to carry the procedure. Rapid movement between multiple treatment sites is possible allowing treatment of a larger number of afflicted muscles and muscle areas in a single treatment session. The strength and number of twitches obtained at the treatment sites can provide substantial relief from regional and diffuse myofacsial pain of radiculopathic origin.

7725193, May 25, 2010

Sep 7, 2006

11/470757

Jennifer Chu - Haverford PA, US

Jus-Jas LLC - Haverford PA

A61N 1/00

607 48

A modality of electrical twitch obtaining intramuscular stimulation pain relief therapy utilizes a surface probe with a conductive tip to apply surface electrical stimulation of relatively high voltage locally and focally to muscle motor points and regions of adjacent motor end plate zones. The surface-applied electrical stimulation through intact skin readily facilitates the elicitation of forceful twitch responses from muscle fibers associated with the stimulated motor points and motor end plate zones, without requiring needle penetration into the patient's flesh. Rapid movement between multiple treatment sites is possible allowing treatment of a larger number of muscle motor point areas in afflicted muscles and more muscles to be treated in a single treatment session. The therapeutic effect of the twitches increases with the force and number of the twitches. In addition, since physical insertion of the needle electrode is totally unnecessary, patients experience little to no pain during and after the procedure, and the risk of repetitive stress injury to the therapist is reduced.

D655410, Mar 6, 2012

Jun 2, 2011

29/393319

Jennifer Chu - Haverford PA, US
Janette Chu - Broomall PA, US

Jusjas LLC - Haverford PA

2402

D24128

2012025, Oct 4, 2012

Mar 30, 2012

13/436221

Jennifer Chu - Haverford PA, US
Janette Chu - Broomall PA, US

JUSJAS LLC - Haverford PA

A61N 1/36, F16M 13/00

607115, 2483091, 2483168

A holder serves as a removable accessory to a stimulator unit chassis or cabinet, or other device. It can function as an integral part of the device that closely fits over the top of the device, to provide a support for a hand-held tool associated with the device, e.g., a bipolar probe with widely spaced electrodes. The holder, which may be constructed to be of one piece, is configured to be easily removed from the device to facilitate cleaning of the holder and/or to facilitate packing of the stimulator unit (or other device) for shipping purposes, e.g., in case of device repairs, etc. In other embodiments, the holder may associate a tray or box for storing a variety of items with a host device on which the holder is mounted.