Extremity Surgical Positioning Device

Abstract

The present inventive subject matter is a device or fixture for positioning, adjusting, and stretching a patient's extremity for surgical procedures where alignment is critical and minute adjustments may be required. The device prevents the patient's extremity to move once the physician has selected the precise position for the elected procedure, using a combination of an articulating and rotating frame or support plates and support rings attached to the extremity surgical positioning system which acts as a limb splint that firmly attached to the surgical table. The support plates are attached to the patient via a series of adjustable straps preventing the extremity from moving independently of the support plate. A locking rack and gear configuration and a myriad of adjustable locking pivot points positioned along and within the outer/inner proximal tube and outer/inner distal tube to either lengthen or rotate various portions of the extremity.

Claims

1. A patient limb positioning device, comprising: an articulating frame; a rotating frame; one or more limb supporting plates, wherein the patient's limb is securely affixed in the limb supporting plates with one or more straps; a limb supporting clocking lever, the limb supporting clocking lever to help in locking the position of the limb supporting plates; and a limb supporting ball joint, the limb supporting ball joint for adjusting movements of the limb supporting plates and is lockable to a position via a limb supporting plates ball joint cam-lock.

2. The patient limb positioning device as described in claim 1, wherein the patient's limb can be manipulated to different positions via the limb supporting plates by a rack and gear components of one or more pivot points.

3. The patient limb positioning device as described in claim 2, wherein the rack and gear components are locked into a stationary position by mechanism chosen from a group comprising friction mechanism or spring and pawl mechanism.

4. The patient limb positioning device as described in claim 2, wherein the pivot points are locked into a stationary position by mechanism chosen from a group comprising friction mechanism or spring and pawl mechanism.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0025] FIG. 1 is an oblique view of the Extremity Surgical Positioning Device with patient's lower extremity positioned in it.

[0026] FIG. 2 is an oblique view of the Extremity Surgical Positioning Device with identification markers for referenced characters.

LIST OF REFERENCE CHARACTERS

[0027] 001: Patient [0028] 002: O.R. Table (Generic) [0029] 100: Extremity Surgical Positioning System [0030] 105: Table Clamp Cam-Lock [0031] 110: Table Clamp [0032] 115: Base [0033] 120: Rotary Joint Cam-Lock (Locks Adduction/Abduction) [0034] 125: Rotary Joint (Adduction/Abduction) [0035] 130: Proximal Hinge (Proximal Joint Flexion/Extension) [0036] 135: Proximal Hinge Cam-Lock (Locks Proximal Joint Flexion/Extension) [0037] 140: Outer Proximal Tube [0038] 145: Outer Proximal Tube Cam-Lock (Locks Int/Ext Rotation of Proximal Joint and Distraction/Compression) [0039] 150: Proximal Support Cam-Lock [0040] 155: Proximal Support Arm [0041] 160: Proximal Support Plate [0042] 165: Inner Proximal Tube [0043] 170: Proximal Distraction/Compression Ring [0044] 175: Proximal Distraction/Compression Engagement Lever [0045] 180: Intermediate Hinge (Distal Limb Flexion/Extension) [0046] 185: Intermediate Hinge Cam-Lock (Locks Distal Limb Flexion/Extension) [0047] 190: Distal Limb Support Cam-Lock [0048] 195: Distal Limb Support Arms [0049] 200: Distal Limb Support Plate [0050] 205: Distal Limb Support Plate Lock Knob [0051] 210: Outer Distal Limb Tube [0052] 215: Distal Tube Clocking Ring [0053] 220: Inner Distal Limb Tube [0054] 225: Distal Limb Distraction/Compression Ring [0055] 230: Distal Limb Distraction/Compression Engagement Lever [0056] 235: Foot/Hand Support Clocking Lever [0057] 240: Foot/Hand Plate Ball Joint Cam-Lock [0058] 245: Foot/Hand Support Arm [0059] 250: Foot/Hand Plate Ball Joint [0060] 255: Foot/Hand Plate [0061] 260: Ring Support [0062] 265: Ring Support Cam-Lock [0063] 270: Ring Support Rings (Vary in Size) [0064] 275: Ring Support Ring Retention Pin

DETAILED DESCRIPTION

[0065] Representative embodiments according to the inventive subject matter are shown in FIGS. 1-2, wherein similar features share common reference numerals.

Description of the Inventive Subject Matter

[0066] The inventive subject matter of a multi-purpose positioning device has the following method of operation.

[0067] FIG. 1 shows an oblique view of a patient 001, an operating room table 002, an extremity surgical positioning system (hereinafter positioning system).

[0068] FIG. 2 shows an oblique view of the positioning system 100, which shows a table clamp 110, table clamp cam-lock 105, a positioning system base 115, rotary joint cam-lock 120, and a rotary joint 125 connected to proximal hinge 130, with a proximal hinge cam-lock 135, an outer proximal tube 140, outer proximal tube cam-lock 145, proximal limb support cam-lock 150, proximal limb support arm 155, proximal limb support plate 160, inner proximal tube 165, proximal limb distraction/compression ring 170, proximal limb distraction/compression engagement lever 175.

[0069] The inner proximal tube 165 is connected to an intermediate hinge 180, an intermediate hinge cam-lock 185, distal limb support cam-lock 190, distal limb support arms 195, distal limb support plate 200, distal limb support plate lock knob 205, outer distal limb tube 210, outer distal tube clocking ring 215, inner distal limb tube 220, distal limb distraction/compression ring 225, distal limb distraction/compression engagement lever 230.

[0070] The inner distal tube 220 is connected to a foot/hand support clocking lever 235, foot/hand plate ball joint cam-lock 240, foot/hand support arm 245 connects to a foot/hand plate ball joint 250 and a foot/hand plate 255.

[0071] A modular ring support 260 can be attached and locked to the outer proximal tube or outer distal tube with the ring support cam-lock. The ring support ring 270 is held in the ring support 260 by a ring support ring retention pin 275.

[0072] The configuration of the aforementioned inventive subject matter should not be limited to any single embodiment described, instead all possible configurations that can be implemented and derived by one skilled in the arts are understood to be embodied herein.

Method and Operation of the Inventive Subject Matter

[0073] The inventive subject matter of a multi-purpose positioning device has the following method of operation.

[0074] The patient is placed into position on the operating table. FIG. 1 shows a patient 001, with an extremity surgical positioning system 100, this is mounted to an operating room table 002, via a table clamp 110, and lockable into position with the table clamp cam-lock 105. The lower extremity is placed in the extremity surgical positioning system 100, the proximal lower extremity is placed on the proximal limb support plate 160, the patient's distal lower extremity is placed on the distal limb support plate 200, and the foot is placed against the foot/hand plate 255. The limb is further secured to the support plate via commonly used sterile strapping and wraps.

[0075] The length of the outer proximal limb tube 140, and inner proximal limb tube 165, are adjustable to provide for specific patient limb length. This is also used for distraction/compression and is actuated through the proximal limb distraction/compression engagement lever 175, and fine movements are controlled through the proximal distraction/compression ring 170. The length of the outer distal limb tube 210, and inner distal limb tube 220, are adjustable to provide for specific patient limb length. This is also used for distraction/compression and is actuated through the distal limb distraction/compression engagement lever 230, and fine movements are controlled through the distal distraction/compression ring 225. The foot/hand support arm 245, is adjustable for internal/external rotation and/or valgus/varus alignment of the lower limb and is lockable in to position from the foot/hand support clocking lever 235.

[0076] The foot/hand plate ball joint 250, can be adjusted for height, flexion, extension, pronation, supination and rotational movements and is lockable into position from the foot/hand plate ball joint cam-lock 240.

[0077] This extremity surgical positioning system 100, allows for the use of variety of ring support rings 270, that are placed in a ring support 260, maintained in place by a ring support retention pin 275, and secured to the outer proximal limb tube 140 and/or distal limb tube 210, and lockable into position from the ring support cam-lock 265.

[0078] An extremity can be flexed/extended at the proximal joint through the proximal hinge 130, and lockable into position from the proximal hinge cam-lock 135. Abduction/adduction is controlled via the rotary joint 125, and lockable into position via the rotary joint cam-lock 120. Internal/external rotation is controlled through pivoting of the outer proximal limb tube 140, and inner proximal limb tube 165, and lockable from the outer proximal limb tube cam-lock 145.

[0079] An extremity can be flexed/extended at the intermediate joint through the intermediate hinge 180, and lockable into position from the intermediate hinge cam-lock 185. Abduction/adduction is controlled via the rotary joint 125, and lockable into position via the rotary joint cam-lock 120.

[0080] The materials as depicted in FIG. 2, can be fabricated from materials generally used in operating room environments. These materials may be also constructed from metal, fiberglass, carbon fiber or plastic. The use of wood laminates and/or wood can be utilized. In operating environments where X-Rays will need to be taken while the limb is positioned into the extremity surgical positioning system 100, the material should be fabricated from radio-lucent material.

Certain Advantages of the Inventive Subject Matter Over the Prior Art

[0081] The inventive subject matter is a multi-purpose positioning device that can be used for certain surgical procedures, including, but not limited to, ankle arthroscopy, tibia fractures, fibula fractures, bimaleollar/trimaleollar fractures as well as pylon fractures.

[0082] The inventive subject matter provides for: [0083] multiplanar motion for fracture reduction [0084] quick lockdown of a reduction through positioning with distraction and compression [0085] control of the varus/valgus drift after reduction [0086] provide a consistent, easy to manipulate, control, and measure sterile non-invasive distraction was well as a compression device. [0087] eliminates need for external fixation pins and unnecessary additional surgical wounds. [0088] less trays/equipment to have available on the surgical field. [0089] quick limb position changes for easier surgical approach [0090] bilateral wound closure access for surgeon and the assistant [0091] raised limb elevation during surgery minimizing need for tourniquet use [0092] eliminate need for sand bag/bump under buttock to control ankle/foot neutral position [0093] eliminates concerns of lumbar spine clearance [0094] eliminates concerns of low back pain complications in patients with past history of low back pain/injury/surgeries [0095] devise design provides better surgical site access

[0096] There is an overall reduction on operation time due to better surgical site access, quicker fracture reduction, faster x-ray time, and faster wound-closure through better positioning.

[0097] Persons skilled in the art will recognize that many modifications and variations are possible in the details, materials, and arrangements of the parts and actions which have been described and illustrated in order to explain the nature of this inventive concept and that such modifications and variations do not depart from the spirit and scope of the teachings and claims contained therein.

[0098] All patent and non-patent literature cited herein is hereby incorporated by references in its entirety for all purposes.