WO2023104276A2

WO2023104276A2 - A surgical retractor device

Info

Publication number: WO2023104276A2
Application number: PCT/EG2022/000034
Authority: WO
Inventors: Mohamed Nageh Rabiei Ayed SHEHATA
Original assignee: Shehata Mohamed Nageh Rabiei Ayed
Priority date: 2021-12-08
Filing date: 2022-12-06
Publication date: 2023-06-15
Also published as: WO2023104276A3

Abstract

The present invention relates generally to a surgical device for use during surgical procedures. More particularly, the invention relates to a surgical retractor device for surgical procedures. The surgical retractor device includes transverse arms, a gear box, a box fixator, a retractor blade, and a vertical arm.

Description

A SURGICAL RETRACTOR DEVICE

FIELD OF THE INVENTION

[0001] The present invention relates generally to a surgical device for use during surgical procedures. More particularly, the invention relates to a surgical retractor device for surgical procedures.

BACKGROUND OF THE INVENTION

[0002] Physicians manipulate surgical retractor devices within the abdominal cavity of patients so that the surgical retractor device lifts and retracts the tissues, away from other smaller organs and connective tissue within the cavity where the surgical procedure is to be performed. In this manner, physicians have a clearer view of the surgical field within the abdominal cavity and have a larger area therein for manipulating other surgical tools during the surgical procedure. Current invention provides minimal time of mounting of the retractor, as it provides a quick and easy mounting of the arms using, one of the embodiments of the current invention is the threaded vertical arm compared to other retractors which use two-way fixation clamp which is time consuming. Current invention provides round shaped transverse aim which allows 360- degree direction of the gear fixator portion. Therefore, contrary to other retractors the flat arms limit the mounting of the gear fixator portion and hence the gear box and blades and limits their movement in a horizontal direction only. Threaded end of the vertical arms gives the advantage of easy control of the height of both sides, whether together or on one side only to achieve an oblique angle by elevating the transverse arm on one side.

SUMMARY OF THE INVENTION

[0003] The present invention relates to a surgical retractor device for surgical procedures. The preferred embodiment of the surgical retractor device includes a surgical retractor device includes transverse arms (also referred to as gear box mounting arm), a gear box fixator, a gear box, a retractor blade and a vertical arm (also referred to as transverse arm mounting arm 600). The medical device may be secured to a surgical table or other device. The medical device allows for one and/or multiple independent blades to be inserted into a patient and to provide direct access and visualization to the muscles and abdominal tissues. For example, the medical device may include one retractor blade and/or another blade that is connected to the transverse arms. Both blades may be inserted into the surgical site to access and retract tissue.

Brief description of the drawings

[0004] FIG. 1 A is a perspective view of a preferred embodiment of the surgical retractor device, constructed according to the present invention;

[0005] FIG. IB is a perspective view of a preferred embodiment of the surgical retractor device parts according to the present invention;

10006] FIG. 2 is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating transverse arms thereof; | 0007] FIG. 2Ais a highly enlarged, fragmentary view taken generally on a cubical part of the transverse arms of FIG 2 as a preferred embodiment of the surgical retractor device parts thereof;

[0008] FIG. 2bis a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating the transverse arms in different positions thereof;

[0009] FIG. 3 is a is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating a gear box thereof;

[0010] FIG. 4 is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating the gear box fixator thereof;

[001 1] FIG. 5 is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating the gear box and fixator parts connected to a retractor blade thereof;

[0012] FIG. 5Ais a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating examples of the retractor blades thereof;

[0013 ] FIG. 6 is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating vertical arms thereof;

DETAILED DESCRIPTION

[0014] Detailed implementations of the present invention are disclosed herein;however, it is to be understood that the disclosed implementations are merely examples of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting, but rather to provide an understandable description of the invention.

[0015] The terms “a” or “an, " as used herein, are defined as one or more than one. The term “another, " as used herein, is defined as at least a second or more. The terms “including” and / or “having”, as used herein, are defined as comprising (i.e., open transition).

[0016] The devices described herein are generally directed to medical devices that can be used to provide direct visualization and access to a surgical field within a body of a patient. More specifically, the system and techniques described provides surgical device which allows for direct visualization of the muscle layers and corresponding nerves to avoid complications during and after a surgical procedure.

[0017] The term patient may be used hereafter for a person who benefits from the medical device or the methods disclosed in the present invention. For example, the patient may be a person whose body receives the medical device disclosed by the present invention in a surgical treatment. For example, in some embodiments, the patient may be a human female, human male, or any other mammal.

[0018] FIG.lAillustrates perspective view of a medical device 100 according to an embodiment of the invention. The medical device 100 may be one of the components of the surgical system to allow for direct visualization and access during abdominal surgery. In one example embodiment, medical device 100 is a surgical retractor device that may be used to retract tissue in a surgical procedure, as further described below with the use of the device and its use in a particular surgical technique. In other example embodiments, the medical device 100 may be used in other types of surgeries and surgical procedures. The medical device 100 may be used to help retract the tissues and organs out of the surgical field. FIG. IB is a perspective view of a preferred embodiment of the surgical retractor device parts according to the present invention;

[0019] The medical device 100 includes transverse arms 200A and 200B (also referred to as gear box mounting arm), a gear box fixator 400, agear box 300, a retractor blade 500 and a vertical arm (also referred to as transverse arm mounting arm 600). The medical device 100 may be secured to a surgical tableor other device. For example, the mount may be a table mount that secures the medical device 100 to a bedrail or other rail or component on a surgical table, as illustrated later in figs 2-6.

[0020] The medical device 100 allows for one and/or multiple independent blades to be inserted into a patient and to provide direct access and visualization to the muscles and abdominal tissues.For example, the medical device 100 may include one retractor blade 500 and/or another blade that is connected to the transverse arms 200A &B. Both blades may be inserted into the surgical site to access and retract tissue.

[0021] Figure 2 is a perspective view of one of the preferred embodiment of the surgical retractor device, illustrating transverse arms thereof. The transverse arms 200 A and 200 B allow maneuverability of the retractor blade and the gear box in the operative field in multiple directions and/or planes. While the description of one arm 200A may be described, it is understood that the description applies equally the arm 200B. The arms 200A and 200B may be positioned thus providing multiple positioning and maneuverability of respective blades or blade assemblies attached to the arms 200A and 200B.

[0022] Each arm 200A and 200B may include a proximal end 201A and a distal end 201C. The proximal end 201 A on each of the arms 200A - 200B may connect to or may provide a connection point to other arm or an optional position for gearbox fixation. For example, the proximal end 201 A on arm 200A provides a connection point to the proximal end 20 IB on arm component 200B, including a pin 202 and hole 203 connection. In this example embodiment, the proximal end of each arm includes a hole 203 through which a pin 202may be inserted to connect one arm to another arm. The pin 202 may be tightened and un - tightened to secure the arms in relation to one another.

[0023] Each of the arms 200A - 200B as described above the hole 203 and the pin 202 forms a knob portion. In one example embodiment, the knob portion may be located between the proximal ends 201A-201B. The knob portion may be used to lock the arms in a desired position, the knob may change from one position to at least one other position to lock and unlock the movement of the arms. For example, when the knob portion is in a first position the arm may be in a locked position. When the arm is locked in place, it may be prevented from further articulation and movement. When the knob is in a second position, the arm may be unlocked and capable of disconnecting into a desired positionfor example during sterilization of the device.

[0024] The distal end 201C - 201D of each of the arms 200A - 200B includes a locking mechanism. The locking mechanisms provide a connection point 204 (also referred to as cubical part) to another component of the medical device 100 which is the vertical arm. The transverse arm 200A includes a locking mechanism that connects to the vertical arms 600 A. locking mechanisms include, but are not limited to, a cubical part 204, nut ,a threaded oval hole, and an interference fit. In the illustrated embodiment, a nut and threaded oval hole feature are used to connect the arms 200A to the vertical arm 600 A.

[0025] FIG. 2Ahighly enlarged, fragmentary view taken generally on the cubical part 204 of FIG 2Aas a preferred embodiment of the current invention. The locking mechanism discussed above may be at different heights and directions as needed by the surgeon.

[0026] FIG. 2b illustrated a perspective view the transverse arms in different positions thereof.

[0027] FIG. 3illustrates another preferred embodiment of the current invention, a gear box 300 may include a reel 301, a reel can include a reel frame 302 also can be referred to a gear housing and a spool shaft 303 extending through the reel frame and rotatably supported by the gear housing 302. A handle 304 can be mechanically coupled to the spool shaft 303 such that a rotation of the handle 304 causes a rotation of the spool shaft 303. A lock portion 307 which can be locked and unlocked manually. The lock when locked allows to retract the wire using the handle 304 and when unlocked it allows spontaneous release of the wire. A wire 305 can be coupled to the reel 301. A spool 303can be mechanically coupled to the spool shaft 303and configured to rotate with the rotation of the spool shaft 303 allows retract or release of the wire 305 attached to aretractor blade distally.

[0028] The distal end of the gear box 300may include a curved portion also can be referred to a hook 306. The curved portion or the hook 306connected to the wire 305 which may allow retract or release the wire305connected to asurgical retractor device blade illustrated in FIG 5. The hook 306can pull the blade in a desired direction and/or orientation and may allow a doctor to position theretractor blade in a desired manner. For example, the blade portion may be retracted or released in multiple positions. The retractor blade may be locked into any one of the multiple positions along the movement of travel about the gear box 300. In other example embodiments, other types of gear boxes may be used to enable the retractor blades to be retracted or to lock into a desired position.

[0029] FIG.4 illustrates another preferred embodiment of the current invention includes a gear box fixator portion 400. It is a portion of the device which fixes the gear box 300 to the transverse arm 200. The gear box 300 is fixed to the fixator portion from below surface by screwing in an aperture 302on the upper surface of the gear frame or housing illustrated in FIG 3, the fixator may include a body 401 for mounting the transverse arm. It may also include a clamp 402 fixed to the posterior wall of the fixator by screwing. The clamp is connected to an external fastening member 403. The fastening member 403 may include a threaded screw 404 and a mechanically atached handle 405threadably engaged such that rotation forces the plate of the fixator 400 to move horizontally relative to the axis of the transverse arm. The fixation mechanism together with the round shaped transverse arms allow mobility of the gear box 300 in 360 degrees which allows positioning of the blade in a desired direction and/or orientation which may allow a doctor to position the retractor blade in a desired manner.

[0030] FIG 5 illustrates another preferred embodiments of the current invention which is the blade portion 500. The blade portion is connected to the curved hook portion near the proximal end of the gear box portion. The blade may be a removable component of the retractor blade. Different types of blades may be used with the same curved hook portion.

[0031] The retractor blade 500 may be secured and connected to the transverse arm 200A of FIG 2. Examples of the surgical retractor device blade 500 are illustrated in FIG 5A. Different blade portions may be used with the same surgical retractor device. The blade portion may vary in lengths and / or widths. The distal end of the blade portion may be blunted to prevent tissue damage. The blade portion may be concave on an inner surface and convex along an outer surface. The curved portion allows for engagement of tissue at a surgical site.

[0032] FIG. 6 illustrates the vertical arm 600. While the description of one arm 600A may be described, it is understood that the description applies equally to the arm 600B. The arms 600A and 600B may be positioned thus providing multiple positioning and maneuverability to the transverse arms 200A-200B.The vertical table arm, as described above, may be used to connect to one of the arms of the medical device 100 and to another.In this illustrated example, the mounting vertical table arm 600 includes multiple connection points and to enable the arm to connect to one of the transverse arms 200A-200B of the medical device 100 and the operation table by table clamps 605A - 605B. The vertical arms 600A -600B may include several components. As shown in the figure the vertical arm comprises a pin 601, an internally threaded nut 602, a cylindrical member 603, a spring 604, a first table clamp 605 A, a second table clamp 605 B, an attachment member 606 with distal shaft to receive the spring and proximal internally threaded end. The vertical arm second component is a distal shaft 607which may include a threaded proximal end to be connected to the atachment member 606. The distal shaft includesa threaded distal part to receive the transverse arm where the transverse arm is positioned and secured with upper and lower nuts 608A-608B to lock it in a desired position.

[0033] The distal threaded shaft 607when connected to the cubical part of the transverse arm 204 provides a wide range of degrees of freedom can be set at a wide range of positions on the table by changing the height and changing the angle. As described above, the vertical arm provides a suitable way to raise and lower the transverse arm mechanically by the rotating upper and lower the nuts.

[0034] As discussed above with respect to FIG. 1 The vertical arm and the transverse arm cubical connecting member are threadably engaged such that rotation forces the transverse arm to move perpendicularly relative to the axis of the vertical arm, through the oval hole of the cubical part, from a first position to a second position vertical arm includes a first portion configured to operatively connect to the transverse arm of the device to control movement of a retractor blade and support for a surgical table.

[0035] The device may be manufactured, molded, formed or configured of aluminum, titanium or stainless steel or any durable metal that can be used to provide the element of lightness, durability, economic cost, biocompatibility and serializable.

[0036] Such improvements, changes and modifications within the skill of the art are intended to be covered by the appended claims.

Claims

1- A surgical retractor device, comprising: transverse arms; a gear box; a gearbox fixator; a retractor blade; and a vertical arm.

2- The surgical retractor device according to claim 1, wherein the transverse arms comprise two connection points a single attachment point on each side.

3- The surgical retractor device according to claim 2, wherein the transverse arm may include connection members.

4- The surgical retractor device according to claim 3, wherein connection members are cubical members wherein there are two nuts with threaded holes on each side of the cubical member and an internal threaded hole inside of the cubical member.

5- The surgical retractor device according to claim 4, wherein transverse arm connects to the one connection point using a locking mechanism to make a secure attachment to a vertical arm.

6- The surgical retractor device according to claim 4, wherein the cubical part comprises an oval slot to accept an arm.

7- The surgical retractor device according to claim 6, wherein the oval slot may receive the vertical arm and lock the arm therein using the locking mechanism.

8- The surgical retractor device according to claim 7, wherein the locking mechanism may be in a first position to allow the insertion and removal of the vertical arm into the transverse arm.

9- The surgical retractor device according to claim 8, wherein the locking mechanism may be at different heights and directions.

10- The surgical retractor device according to claim 1, further comprising a gear box.

11- The surgical retractor device according to claim 10, wherein the gear box comprising a reel, a reel comprising a reel frame and a spool shaft.

12- The surgical retractor device according to claim 11, whereinthe spool shaft extending through the reel frame and rotatably supported by the gear housing.

13- The surgical retractor device according to claim 12, wherein a handle can be mechanically coupled to the spool shaft such that a rotation of the handle causes a rotation of the spool shaft.

14- The surgical retractor device according to claim 13, wherein a wire can be coupled to the reel.

15- The surgical retractor device according to claim 14, wherein a spool can be mechanically coupled to the spool shaft and configured to rotate with the rotation of the spool shaft.

7 - The surgical retractor device according to claim 15, wherein a lock portion which when locked manual allows retraction of the wire using the handle and when unlocked it allows spontaneous release of the wire. - The surgical retractor device according to claim 16, whereinthe distal end of the gear box comprising a curved portion also can be referred to a hook. - The surgical retractor device according to claim 17, wherein the curved portion can pull the blade in a desired direction and/or orientation. - The surgical retractor device according to claim 18, wherein a blade portion is connected to the curved hook portion near the proximal end of the gear box portion. - The surgical retractor device according to claim 19, wherein the retractor blade may be secured and connected to the transverse arm via gear box. - The surgical retractor device according to claim 1, further comprising a gear box fixator portion wherein it is a portion of the device which fixes the gear box to the transverse arm. - The surgical retractor device according to claim 21, whereinthe gear box is fixed to the fixator portion from below surface by screwing in an aperture on the upper surface of the gear frame or housing. - The surgical retractor device according to claim 22, wherein the fixator may include a body for mounting on the transverse arm. - The surgical retractor device according to claim 23, wherein a clamp is connected within an external fastening member. - The surgical retractor device according to claim 24, wherein the fastening member may include a threaded screw and a mechanically attached handle. - The surgical retractor device according to claim 25, wherein the hand le threadably engaged such that rotation forces the clamp of the fixator to move horizontally relative to the axis of the transverse arm. - The surgical retractor device according to claim 26, wherein the fixator allows mobility of the gear box 360 degrees. - The surgical retractor device according to claim 1 , further comprising a vertical arm.- The surgical retractor device according to claim 28, wherein The vertical arms may be positioned thus providing multiple positioning to the transverse arms. - The surgical retractor device according to claim 29, wherein The vertical table arm comprising multiple connection points to enable the arm to connect to one of the transverse arms of the medical device and the operation table. - The surgical retractor device according to claim 30, wherein The vertical arms comprises a pin, an internally threaded nut, threaded nut, a cylindrical member, a first table clamp, a second table clamp a spring, attachment member with distal shaft to receive the spring and proximal internally threaded end. - The surgical retractor device according to claim 31, wherein The vertical arm further comprising a shaft with a threaded distal end to be connected to the attachment member distally.

8 - The surgical retractor device according to claim 32, comprisinga proximal threaded shaft to receive the transverse arm where the transverse arm is positioned and secured with upper and lower nut to block it in desired position.

9