Invented by Michael C. Hiles, Umesh H. Patel, Bhavin Shah, Chad S. McAlexander, Cook Biotech Inc
The Cook Biotech Inc invention works as follows
The invention describes medical devices that are useful in applying a bolster to a surgical fastening tool such as a stapler and methods for their manufacture and use. The devices comprise an applicator for receiving between the arms of the stapler and a bolster, preferably a remodelable matrix extracellular material, attached to the applicator. In some embodiments, bolster material can be held by the stapler element. For example, a portion may be looped or received over or through a portion. Unique implantable materials are also described, including coatings of dried reversible glue.Background for Medical devices for the application of bolster material and methods to apply them
The present invention is a general medical field and it relates to specific aspects of devices and methods for the application of bolster materials to a device used for inserting surgical fasteners. “The present invention resides generally in the field of medicine and in particular aspects to devices and methods that are useful for applying a bolster material to a device for inserting surgical fasteners, e.g.
As a further background, the surgical stapler device is designed to seal a segment of tissue or cut and seal it simultaneously in a patient. Some surgical staplers have two arms. The first arm has two or more rows of multiple staples. Some surgical staplers have two arms, a first arm with multiple lines of staples (also called a?cartridge? The second arm includes an anvil, or some other feature that bends each staple into a closed state when the stapler is operated. So-called ?anastomotic? The staplers have a blade to cut tissue in between the staple lines. Non-anastomotic staplers are those without a cutting edge. staplers.
For some medical procedures, it is acceptable to use bare staples that are in direct contact with tissue. Normaly, the integrity of the tissue of the patient will prevent the staples tearing through the tissue before the healing process has taken place. In other cases, the tissue of the patient to be sealed may not be strong enough to hold staples securely in place. In the case of lung tissues, especially diseased lung tissues, the tissue that is to be stapled can easily tear through the staple lines if they are not protected. In the increasing use of surgical staplers for operations on diseased lungs tissues, such as bullectomies or volume reduction procedures, there is a need to take steps to protect delicate tissue from tears caused by surgical staples.
One well-known protective measure is the use of reinforcement or bolster materials, in which the staples are inserted through both the reinforcement material and the tissue of the patient. As a first step, in many cases the reinforcement material will be applied to the arms or the surgical stapler. The stapler is then used to secure the tissue of the patient. “The present invention provides medical device and methods for attaching bolster material to surgical fasteners or other similar devices.
The present invention, in one aspect, provides a medical tool useful for applying a support material to a stapler or similar surgical fastening devices, wherein the device comprises an applicator and a support material that are coupled together. This coupling could, for example, be such that the applicator and the bolster materials are kept in close association without any other mechanical components.
In one embodiment, this invention provides a device for applying a bolster to a surgical fastening tool with a first and second arms presenting first and second surfaces that are opposed. The invention comprises an applicator having at least one first side and one or several pieces of bolster materials coupled to the application element and displayed on the first side. The bolster can be attached to the applicator by, for instance, extending portions of the bolster through or around the applicator, and/or bonding. The bolster surface on the first side can be brought in contact with the first arm surface of a fastening device when a loading process is performed. In some embodiments, the bolster material can be applied to the first and second surfaces of the fastening devices by presenting it on both the first and the second side of the applicator. In one example, opposed arm surfaces on a device like a surgical stapler may be closed to create adherent contact between the arm surfaces and the bolster material. It is possible to eliminate the coupling between bolster and applicator elements, allowing the applicator component to be removed from the bolster contacting the surface of the arms. If desired, the applicator can be disposed. Other embodiments of the invention are related to manufacturing and using devices like those described above as well as applicator materials and inventive applicator components used in such devices.
The invention also provides a bolster that is composed of a bolstering material designed to be applied to the arm of a surgical device fastening, as well as a dried, reversible, adhesive coating.
In a further embodiment, the invention provides a medical device (for example, a bolster) that includes a layer dried collagenous extracellular matrix material and a dried reversible adhesion coating on the layer ECM material.
The description of the invention herein will reveal additional embodiments, features and benefits.
DESCRIPTION OFF THE FIGURES
FIG. “FIG.
FIG. “FIG.
FIG. “FIG. “Figures 1 and 2, respectively.
FIG. “FIG. 3 .
FIG. “FIG.
FIG. “FIG.
FIG. “FIG. 6 .
FIGS. “FIGS. 8-11 show front views of medical devices that are not shown in the other images (FIGS. The FIGS. 8 and 11 show front views of additional medical devices (FIGS. “9 and 10” can be used to incorporate the invention.
FIG. “FIG.
FIG. “FIG. 12 .
FIG. “FIG. “13 taken along the line 14-14, and viewed to the right of the arrows.
Click here to view the patent on Google Patents.