ORGAN RETRACTION DEVICE

Abstract

A disclosed medical device may have a sling, a first needle coupled to a first end of the sling and a second needle coupled to the second end of the sling. The first needle may be coupled via a first suture having one point of attachment on the sling, and the second needle may be coupled via a second suture having two points of attachment on the sling. The sling may be used in laparoscopic surgeries and is intended to, if desired, be left in place during the procedure. The sling is further configured to allow a surgeon to visualize the full and proper surgical field by holding and retaining at least one organ.

Claims

1: A method of organ retraction comprising: inserting a medical device into a body cavity of a patient, wherein the medical device includes: a triangular sling, a first needle coupled to a first end of the triangular sling via a first suture, and a second needle coupled to a second end of the triangular sling via a second suture; attaching the first needle to a first anatomical location of the patient; and attaching the second needle to a second anatomical location of the patient, wherein an organ in the body cavity is supported by the triangular sling.

2: The method of claim 1, wherein the first anatomical location is a diaphragm of the patient.

3: The method of claim 2, wherein attaching the first needle to the diaphragm includes hooking the first needle onto the diaphragm.

4: The method of claim 1, wherein the second anatomical location is an abdominal wall of the patient.

5: The method of claim 4, wherein attaching the second needle to the abdominal wall includes inserting the second needle through the abdominal wall.

6: The method of claim 5, wherein the second needle is a Keith suture needle.

7: The method of claim 1, wherein the organ is a liver.

8: The method of claim 1, wherein the medical device is inserted into the body cavity of the patient via a laparoscopic port.

9: The method of claim 1, wherein the triangular sling supports the organ in a hammock configuration.

10: The method of claim 1, wherein the triangular sling is comprised of a polypropylene mesh fabric.

11: The method of claim 1, wherein the triangular sling has an isosceles triangle profile.

12: The method of claim 1, wherein the medical device includes a reinforcement material disposed along a periphery of the triangular sling.

13: The method of claim 12, wherein the reinforcement material is comprised of silicone.

14: The method of claim 12, wherein the triangular sling is affixed to the reinforcement material via a plurality of securement tabs.

15: A method of organ retraction comprising: inserting a medical device into a body cavity of a patient, wherein the medical device includes: a sling, a curved needle coupled to a first end of the sling, and a straight needle coupled to a second end of the sling; hooking the curved needle to a first anatomical location of the patient; and inserting the straight needle through a second anatomical location of the patient, wherein an organ in the body cavity is supported by the sling.

16: The method of claim 15, wherein the first anatomical location is a diaphragm of the patient.

17: The method of claim 15, wherein the second anatomical location is an abdominal wall of the patient.

18: The method of claim 15, wherein the organ is a liver.

19: The method of claim 15, wherein the medical device includes a reinforcement material disposed along a periphery of the sling.

20: The method of claim 19, wherein the sling is affixed to the reinforcement material via a plurality of securement tabs.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 is a perspective view of a first embodiment of the present invention.

[0027] FIG. 2 is a top view of a first embodiment of the present invention.

[0028] FIG. 3 is a bottom view of a first embodiment of the present invention.

[0029] FIG. 4 is a top view of an unassembled sling of a first embodiment of the present invention.

[0030] FIG. 5 is a perspective view of a second embodiment of the present invention.

[0031] FIG. 6 is a top view of a second embodiment of the present invention.

[0032] FIG. 7 is a bottom view of a second embodiment of the present invention.

[0033] FIG. 8 is a top view of an unassembled sling of a second embodiment of the present invention.

[0034] FIG. 9 is a top view of a packaging layout for an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] The preferred embodiments of the present invention will now be described with reference to the drawings. Identical elements in the various figures are identified with the same reference numerals.

[0036] Reference will now be made in detail to each embodiment of the present invention. Such embodiments are provided by way of explanation of the present invention, which is not intended to be limited thereto. In fact, those of ordinary skill in the art may appreciate upon reading the present specification and viewing the present drawings that various modifications and variations can be made thereto.

[0037] Referring now to FIGS. 1-4, there is a first embodiment of the present invention. Generally, the device 100 comprises a sling 102, first needle 104, first suture 106, first attachment point 110, second needle 112, second suture 114, second attachment point 116, third attachment point 118, a reinforcement material 122, and a tab 124.

[0038] The device 100 is intended to be able to support any number and type of organs during a laparoscopic or other surgical procedure. In at least one embodiment, the device 100 is configured to support a human liver having a weight of about 1.2 kg to about 1.8 kg. In at least one embodiment, the device 100 is configured to fit into and through a 10 mm to 12 mm trocar, deploy, and subsequently be removed through the same or different 10 mm to 12 mm trocar.

[0039] The sling 102 is preferably formed from a polymer mesh fabric that is selected for its strong and flexible properties. Such a fabric may be a polypropylene knitted mesh manufactured from a 0.125 mm monofilament. In some embodiments, the fabric further has 1.0 mm by 0.6 mm pores and a weight of about 65 GSM.

[0040] The sling is generally triangular in shape, when assembled, and may take the form of an isosceles triangle. By triangle it is meant that the sling is a polygon having generally three main sides coming to three points or vertices. However, the points or vertices may be true vertices or may otherwise be rounded. In yet other embodiments, the triangle is a cut corner triangle where the traditional three vertices have been cut off thereby leaving three additional edges to the overall triangular shape as shown in the drawings.

[0041] In at least one embodiment the overall length of the finished sling is about 127 mm and may range from about 100 mm to about 150 mm. In at least one embodiment, the unassembled version of the sling has a length of about 141 mm and may range from 120 mm to about 180 mm.

[0042] The sling 102 further has a reinforcement material 122 disposed along a periphery of the sling 102. The reinforcement material 122 may be a silicone 0-ring. The reinforcement material 122 is positioned and sealed into place by folding a portion of the sling 102 over onto itself and sealing the folded over portion using conventional means. The reinforcement material 122 allows the sling 102 and device 100, as a whole, to be inserted through a trocar and otherwise manipulated once inside the patient. Further, the reinforcement material 122 provides the necessary rigidity to support and retractor at least one organ of a patient.

[0043] At a first end 108, the sling 102 is about 5 mm in width and may range from about 1 mm to about 10 mm in width. Further at the first end 108, a first suture 106 is coupled to a first attachment point 110. The first suture 106 (and second suture 114) may be a size O braided surgical suture such the Vicryl suture manufactured by Ethicon. One end of the first suture 106 is coupled to the first attachment point 110 and the second end of the first suture 106 is coupled to a first needle 104. The first needle 104 is preferably an arcuate taper pointed needle. Such a needle is capable of being coupled to the diaphragm of the patient or other structure when the device 100 is in use.

[0044] At a second end 120, the sling 102 is about 76 mm in width and may range from about 50 mm to about 100 mm. Further at the second end 120, there is a second needle 112 coupled to the sling 102 by a second suture 114. The second suture 114 preferably has multiple points of attachment to the sling 102 but the number of points of attachment may range from one to five. In a preferred embodiment, the second suture 114 is coupled on one end to the second needle 112 and coupled to the sling 102 via a second attachment point 116 and a third attachment point 118. Each of the second attachment point 116 and the third attachment point 118 are located at the vertices of the sling 102. Further, these attachment points are the vertices adjacent to the sides of the isosceles triangular shape having equal lengths.

[0045] The second needle 112 is generally a straight, cutting, surgical stainless steel needle and is more preferably a Keith-style needle. The second needle 112 is preferably about 60 mm in length but may range from about 30 mm to about 100 mm in length. In use, the second needle 112 is passed through the abdominal wall and anchored in place via a hemostat or other suitable structure. Other implementations and uses for this needles are also contained under the purview of this application.

[0046] With regard to the aforementioned first suture 106 and second suture 114, the sutures may come pre-attached or precut for use in a surgical setting. However, in other embodiments a length of suture is provided which is then cut to the specifications required by the surgical team employing the device 100.

[0047] Each of the first attachment point 110, second attachment point 116, and third attachment point 118 are openings in the sling 102 configured to allow the requisite suture to be coupled thereto. Each of the attachment points are reinforced with at least one additional layer of sling material. As shown, the sling 102 in its unassembled form, has tabs 124 located at each of the vertices. These tabs 124 are folded over onto the sling 102 and adhered thereto via conventional means such a heat sealing. This additional material strengthens the attachment points thereby providing a solid anchor for the sutures and prevents tearing or dislodgment of the sling 102 during use.

[0048] Referring now to FIGS. 5-8, there is a second embodiment of the present invention. The second embodiment is slightly narrower than the first embodiment as shown. This provides greater flexibility in terms of manner of use, but provides the same benefits as otherwise described herein.

[0049] In FIG. 9, there is a packaging layout for an embodiment of the present invention. Preferably, the device 100 comes fully assembled thereby allowing for out of the box usage by a physician. However, in other embodiments, some assembly may be required.

[0050] The sling is configured to reside in a molded pocket (not shown) with the securement tabs 126 folded or otherwise positioned to secure the sling in place. The securement tabs 126 may have an adhesive component or may have a rigidity that allows the tabs to be bent to remove the sling but otherwise are sufficiently rigid to retain the sling. There may be between two and ten securement tabs 126 and more preferably about five securement tabs 126. A portion of the securement tabs 126 is configured to be secured to the molded pocket and surrounding area, where another portion extends over the sling thereby retaining the position of the sling.

[0051] Each of the needles may be held in place by snap latches 128 which are coupled to the material forming the molded pocket. The snap latches 128 may be constructed such that the needle(s) can be pressed into a void formed by the latch arms thereby retaining the position of the needle once pressed into the latch void. To remove the needle(s), one simply need to lift up on the needle. Such an action causes the latch arms to separate thereby releasing the needle(s) from the void. Each needle is preferably held by one to five snap latches 128 and more preferably two snap latches 128 each.

[0052] Any length of suture that is coupled to the sling may have a packaging feature (not shown) allowing the suture to by properly wound around the feature to prevent tangles, knots, and the like. Posts or protrusions from the packaging material may further be used to position the suture sufficiently taut such that the device 100 may be easily unpackaged and used without having the materials tangled or otherwise rendered not useful.

[0053] Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made only by way of illustration and that numerous changes in the details of construction and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention.