SURGICAL RETRACTORS

• US 20150313456A1
• Filed: 07/13/2015
• Published: 11/05/2015
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Hawkins, John Riley, Pavento, Nicholas, Selover, Sean P., LeClerc, Michelle
• Granted Patent: US 10,398,299 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/06 with illuminating arrangements
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 1/07 using light-conductive means, e.g. optical fibres
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 17/0206 with antagonistic arms as supports for retractor elements
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/025 Joint distractors
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 2017/00092 using thermocouples
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00946 malleable
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/0262 with a provision for protecting nerves
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/065 for measuring contact or contact pressure
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/14542 : for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 : for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/24 : Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61B 5/6847 : mounted on an invasive device
• CPC Class Codes: A61B 5/746 : Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61B 90/06 : Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/36 : Image-producing devices or illumination devices not otherwise provided for

Abstract

The present disclosure relates to methods and devices for surgically manipulating tissue. In general, the methods and devices can include an elongate retractor shaft having a distal retractor tip that is configured to manipulate tissue, for example the tip can be configured to separate muscle and nerve fibers surrounding a vertebra. The elongate retractor shaft can include an illumination source such that at least a portion of the surgical field is illuminated by the device when the device is used in the body. A sensor can also or alternatively be included on the elongate retractor shaft, for example on the blunt retraction tip, such that the sensor can monitor physiological parameters of the tissue in or adjacent to the surgical field.

Claims

1-23. -23. (canceled)

24. A surgical retractor device, comprising:

an elongate retractor shaft having a proximal end with a handle portion and a distal end having a blunt retraction tip configured to manipulate tissue within a body;

an illumination source disposed on the elongate retractor shaft and configured to illuminate tissue;

a sensor disposed on the retraction tip and configured to sense at least one physiological parameter of tissue being manipulated by the retraction tip; and

a signal processor disposed in the elongate retractor shaft;

wherein, when a parameter monitored by the sensor is outside a preset range, the signal processor is configured to activate the illumination source to alert a user.

25. The device of claim 24, further comprising an internal power source disposed within the handle portion and configured to provide power to at least one of the illumination source and the sensor.

26. The device of claim 24, wherein the blunt retraction tip has a concave surface configured to conform to a bone surface.

27. The device of claim 24, wherein the elongate retractor shaft is non-linear with at least one bend formed therein such that the blunt retraction tip extends along a central longitudinal axis that is transverse to a central longitudinal axis of the handle portion.

28. The device of claim 24, wherein the elongate retractor shaft has a lumen extending through at least a portion thereof.

29. The device of claim 28, wherein the illumination source is at least partially disposed within the lumen.

30. The device of claim 24, wherein the elongate retractor shaft has a lumen extending through at least a portion thereof, and the sensor is at least partially disposed within the lumen.

31. The device of claim 24, wherein the illumination source is disposed proximally adjacent to the retraction tip.

32. The device of claim 24, wherein the illumination source includes a fiber optic lighting system.

33. The device of claim 24, wherein the illumination source includes a light emitting diode.

34. The device of claim 24, wherein the blunt retraction tip is configured to anchor into bone.

35. The device of claim 24, wherein the sensor is configured to sense at least one physiological parameter selected from the group consisting of a temperature, a pressure, a blood oxygen level, neuro conductivity, or combinations thereof.

36. The device of claim 24, wherein at least a portion of the elongate retraction shaft is malleable.

37. The device of claim 24, wherein the sensor is laminated to an external surface of the elongate retractor shaft.

38. The device of claim 24, where the illumination source is configured to alert the user by flashing, blinking, turning off, or changing color.

39. A surgical retractor device for monitoring physiological parameters of tissue, comprising:

an elongate shaft having a proximal end and a distal end;

a handle portion located at the proximal end of the elongate shaft;

a retraction tip disposed on the distal end of the elongate shaft;

an illumination source disposed on the elongate shaft;

a sensor disposed on the retraction tip configured to sense at least one physiological parameter of the tissue selected from the group consisting of temperature, pressure, blood oxygen level, neural conductivity, and combinations thereof; and

a signal processor disposed within the elongate shaft configured to activate the illumination source when a parameter sensed by the sensor is outside a preset range.

40. The device of claim 39, further comprising:

a display disposed on the handle portion configured to communicate an output of the sensor or display tissue imaged by the sensor.

41. The device of claim 39, wherein:

the proximal end of the elongate shaft is coupled to a malleable connector; and

the malleable connector is configured to wrap around a support structure to support the device.

42. The device of claim 39, wherein the illumination source comprises a plurality of illumination sources which are disposed in recesses formed in the elongate shaft.