Surgery – Instruments – Surgical mesh – connector – clip – clamp or band
Patent
1993-12-14
1996-08-27
Jackson, Gary
Surgery
Instruments
Surgical mesh, connector, clip, clamp or band
606213, 606215, 606216, A61B 1700
Patent
active
055496199
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is concerned with devices for medical and especially, but not necessarily exclusively, surgical applications. More particularly, the invention relates to such a device for attachment to a patient either for connecting together body parts, e.g., for closing wounds produced during surgical procedures, or for securing an external component, such as a cannula, to a body part to prevent accidental displacement.
The most common technique employed for wound closure during surgical operations is that of stitching using either nylon or other plastic thread or stainless steel wire where greater strength is required. Stitching is often complicated by the need to tie knots which must be reliable and not slip, and this frequently prolongs the time taken to complete an operation, thereby adding to the stress and trauma imparted upon the patient. Furthermore, it is sometimes necessary to apply a certain tension between body parts being connected together, which is difficult to achieve when conventional stitching methods are relied upon, whereby substantial skill is required on the part of the surgeon.
In U.S. Pat. No. 4,874,370 there is disclosed a securing strip for encircling a section of intestine to hold it onto a tubular adaptor inserted into the section of intestine. The securing strip has teeth and a channel portion at one end with complementary depressions so that the strip can be formed into a loop and tightened, the other end of the tie having a ring tab to assist tightening. This strip functions like a well known cable tie for holding together bundles of electric cables and it does not provide an answer to the drawbacks mentioned above.
SUMMARY OF THE INVENTION
The present invention addresses these drawbacks and as a solution it proposes a medical securing device comprising an elongate first part in the form of a flexible strip having a free end and having ratchet means provided therealong, and a second part including an eye for the free end to be passed therethrough, the eye including latching means arranged to cooperate with the ratchet means to permit forward movement of the strip through the eye but to retain the strip securely against reverse movement through the eye, thereby to enable the effective length of the first part to be adjusted, characterised in that the first part has fixed thereto means for use in attaching the first part to a body part of a patient and/or for connecting another external member thereto.
According to a first embodiment of the securing device adapted for wound closure, a needle (or stylet) is fixed to the free end of the flexible strip, and the eye is integrally connected to the other end of the strip. The needle is used to thread the flexible strip through, e.g., tissue segments to be sutured, and is then passed through the eye to lead the free end of the strip therethrough, whereby the strip is formed into a loop. The strip is pulled through the eye until the required tension is obtained in the loop and thereafter the needle, and possibly the excess length of strip protruding through the eye, is cut away. Such an embodiment facilitates the application of reliable sutures and also allows accurate control over the suture tension. It may be applied with considerable advantage in the closure of abdominal wounds, for closing together the sternum and in other similar procedures.
In accordance with another embodiment of the invention, the device comprises first and second parts which are separate and adapted for engagement with respective body parts or segments. When the two parts of the device have been engaged with the respective segments the flexible strip can be advanced through the eye to reduce the effective length of the strip and put the strip under tension. A device of this form could be used to advantage, for example, in repairing or rebuilding a ruptured organ, such as a liver, by being applied to span a split in the organ and to hold the split closed so that it may heal together. Another possible application may be in mending
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Kerr James W.
Peters Joseph L.
Clinical Product Development Limited
Jackson Gary
Schmidt Jeffrey A.
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