Newswire (Published: Tuesday, March 9, 2021, Received: Tuesday, March 9, 2021, 4:34:36 PM CST)

Word Count: 1857

2021 MAR 09 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Business Daily -- From Alexandria, Virginia, NewsRx journalists report that a patent by the inventors Racenet, David (Killingworth, CT); Hodgkinson, Gerald (Killingworth, CT); Kachru, Abhinav (Woodbridge, CT), filed on December 20, 2018, was published online on March 8, 2021.

The patent’s assignee for patent number 10,926,105 is Covidien LP (Mansfield, Massachusetts, United States).

News editors obtained the following quote from the background information supplied by the inventors: “The present disclosure relates to surgical implants, clips or fasteners and, more particularly, to surgical low dose brachytherapy implants, clips or fasteners and applicators therefor.

“Generally, brachytherapy is an advanced form of cancer treatment. Specifically, permanent radioactive seeds, sutures, buttresses or the like are placed in or near the cancer site itself, which radioactive seeds, sutures or buttresses emit a relatively low dose of radiation directly to the cancer site while reducing exposure of surrounding healthy tissue to the radiation.

“Depending on the underlying cancer to be treated and on the underlying tissue, particular dosimetry guidelines have been developed for the placement of radioactive seeds, sutures or buttresses and for the radiation levels emitted by the radioactive seeds, sutures or buttresses. Generally, the placement of such radioactive seeds, sutures or buttresses are at predefined distances relative to one another in order to enable effective dosimetry. The radioactive sutures and/or buttresses generally include radioactive seeds incorporated therein, which have been placed at fixed, uniform distances to one another.

“In view thereof, a need exists, and it is desirous, for surgical brachytherapy implants, clips or fasteners, which may be placed at any desired location relative to the target cancer site. The need also exists, and it is desirous, for an apparatus capable of placing, individually, the surgical brachytherapy implants, clips or fasteners. The brachytherapy implant can be configured as a staple, clip, pin, tack, coil or other implant, to name a few.

“The need also exists, and it is desirous, for methods of using the surgical brachytherapy implants, clips or fasteners, and/or the apparatus for placing, individually, the surgical brachytherapy implants, clips or fasteners.”

As a supplement to the background information on this patent, NewsRx correspondents also obtained the inventors’ summary information for this patent: “The present disclosure relates to surgical implants, clips, and/or fasteners.

“According to an aspect of the present disclosure, a surgical implant is provided comprising a biocompatible member configured for securement to an underlying target surgical site and a radiation source integrated into or onto the biocompatible member.

“The surgical implant may be one of a clip, pin, or coil and the radiation source includes at least one brachytherapy capsule providing a dose of radiation to the target surgical site. The surgical implant may also be formed from titanium, stainless steel or polymers.

“According to another aspect of the present disclosure, the clip comprises a deformable backspan, wherein a first leg extends from a first end of the backspan and a second leg extends from a second end of the backspan, and wherein the first leg and the second leg extend substantially in the same direction from the backspan.

“A biocompatible radioactive material may be dispersed throughout the surgical implant such that the entirety of the surgical implant irradiates radioactively. The surgical implant may also be coated with one of gold or a colored oxide layer such that the surgical implant is substantially visible in the surgical field during an open procedure or radiographic location.

“According to another aspect of the present disclosure, the pin comprises a leg having a proximal end and a distal end and a head extending from the proximal end of the leg at an angular orientation relative to a longitudinal axis of the leg. The pin may include a barb extending from the distal end of the leg and may further include a barb extending from a free end of the head.

“According to still another aspect of the present disclosure, the coil comprises a body portion having a first end and a second end opposite the first end, the first end of the body portion having a sharp tissue penetrating point, and the second end having a tang disposed generally inward toward the center of the body portion. The body portion may include approximately 2.5 coils.

“According to yet another aspect of the present disclosure, a method of performing a surgical procedure at a target surgical site may be provided. The method may comprise providing a surgical applier loaded with at least one surgical implant, wherein the at least one surgical implant includes a biocompatible member configured for securement to an underlying target surgical site and a radiation source integrated into or onto the biocompatible member, placing the surgical applier adjacent to a first location of the target surgical site, and firing the surgical applier to secure a first surgical implant of the at least one surgical implant to the first location of the target surgical site.

“The method may further comprise relocating the surgical applier to a second location of the target surgical site and re-firing the surgical applier to secure a second surgical implant of the at least one surgical implant to the second location of the target surgical site.

“The method may further include relocating the surgical applier at a plurality of locations of the target surgical site and re-firing the surgical applier to secure a surgical implant of the at least one surgical implant to each respective location of the plurality of locations of the target surgical site. Additionally, the method may further include relocating the surgical applier at the plurality of locations of the target surgical site and arranging the at least one surgical implant in any configuration, in any pattern, or in any quantity.

“A surgical implant of the at least one surgical implant in the form of one of a clip, pin, or coil may also be provided wherein the radiation source is at least one brachytherapy capsule providing a dose of radiation to the target surgical site. A surgical implant of the at least one surgical implant wherein a biocompatible radioactive material is dispersed throughout the surgical implant such that the entirety of the surgical implant irradiates radioactively may also be provided.

“According to still another aspect of the present disclosure, a surgical applier is provided. The surgical applier may comprise a handle assembly and an endoscopic shaft assembly rotatably supported on and extending from the handle assembly, the endoscopic shaft assembly configured to articulate off-axis, the endoscopic shaft assembly including an end effector supported at a distal end of the endoscopic shaft assembly, and a plurality of surgical implants loaded therein, wherein a distal-most surgical implant of the plurality of implants is disposable in the end effector and is fired by the end effector upon an actuation of the handle assembly, each surgical implant includes a biocompatible member configured for securement to an underlying target surgical site, and a radiation source integrated into or onto the biocompatible member.

“The surgical applier may further comprise a cartridge loaded with the plurality of surgical implants wherein the endoscopic shaft assembly is configured to selectively receive the cartridge. The plurality of surgical implants may be one of a clip, pin, or coil and the radiation source is at least one brachytherapy capsule providing a dose of radiation to the target surgical site.”

The claims supplied by the inventors are:

“What is claimed is:

“1. A surgical implant comprising: a proximal half including: a proximal portion of a coil body portion, the proximal portion having a proximal end; and a tang extending from the proximal end of the coil body portion; and a distal half including: a distal portion of the coil body portion, the distal portion having a distal end terminating in a sharp tip: and a plurality of radiation sources disposed in or on the proximal half, the plurality of radiation sources integrated into or onto the proximal portion of the coil body portion or the tang, wherein each of the proximal portion of the coil body portion and the tang includes more than one radiation source of the plurality of radiation sources.

“2. The surgical implant according to claim 1, wherein the plurality of radiation sources are brachytherapy seeds.

“3. The surgical implant according to claim 2, wherein the brachytherapy seeds are integrated into the coil body portion.

“4. The surgical implant according to claim 2, wherein the brachytherapy seeds are secured to an outer surface of the coil body portion.

“5. The surgical implant according to claim 2, wherein the brachytherapy seeds are integrated into the tang.

“6. The surgical implant according to claim 2, wherein the brachytherapy seeds are secured to an outer surface of the tang.

“7. The surgical implant according to claim 1, wherein the coil body portion includes 2.5 coils.

“8. The surgical implant according to claim 7, wherein the coil body portion includes a proximal coil and a distal coil, and the plurality of radiation sources are disposed in or on the proximal coil.

“9. The surgical implant according to claim 1, wherein the coil body portion is wound in a plurality of coils around a central longitudinal axis defined through the coil body portion.

“10. The surgical implant according to claim 9, wherein the plurality of coils follows a helical path.

“11. The surgical implant according to claim 1, wherein the tang extends inwardly toward a center of the coil body portion.

“12. The surgical implant according to claim 1, wherein the distal half is free of a radioactive source.

“13. A method of performing a surgical procedure at a target surgical site, the method comprising: placing a surgical applier adjacent to a first location of a target surgical site; and firing a first surgical implant from the surgical applier into the first location, the first surgical implant including: a proximal half including: a proximal portion of a coil body portion, the proximal portion having a proximal end; and a tang extending from the proximal end of the coil body portion; and a distal half including: a distal portion of the coil body portion, the distal portion having a distal end terminating in a sharp tip: and a plurality of radiation sources disposed in or on the proximal half, the plurality of radiation sources integrated into or onto the proximal portion of the coil body portion or the tang, wherein each of the proximal portion of the coil body portion and the tang includes more than one radiation source of the plurality of radiation sources.

“14. The method according to claim 13, further comprising: moving the surgical applier adjacent to a second location of the target surgical site; and firing a second surgical implant from the surgical applier into the second location.”

For additional information on this patent, see: Racenet, David; Hodgkinson, Gerald; Kachru, Abhinav. Brachytherapy Clip And Applicator. U.S. Patent Number 10,926,105, filed December 20, 2018, and published online on March 8, 2021. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,926,105.PN.&OS=PN/10,926,105RS=PN/10,926,105

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