Adapters, systems incorporating the same, and methods for providing an electrosurgical forceps with clip-applying functionality

1. A surgical system, comprising:

a surgical forceps including an end effector assembly including a pair of jaw members each defining a tissue-contacting surface, the jaw members movable from a spaced-apart position to an approximated position;

an adapter releasably engagable with the end effector assembly, the adapter including a pair of jaw bodies and an interconnect band coupling the jaw bodies with one another, each jaw body including a support plate configured for positioning on the tissue-contacting surface of one of the jaw members, and a chuck;

a knife selectively translatable relative to the jaw members between a retracted position and an extended position, wherein the knife extends at least partially through a knife channel defined within and extending longitudinally through at least one of the tissue-contacting surfaces, and wherein the at least one of the jaw bodies of the adapter includes a fin configured for receipt within the knife channel of one of the jaw members; and

a surgical clip releasably engagable with the adapter, the surgical clip including a pair of legs and a backspan interconnecting the legs, each leg configured for receipt at least partially within the chuck of one of the jaw bodies of the adapter,

wherein, with the surgical clip engaged with the adapter and the adapter engaged with the end effector assembly, the jaw members are configured to move from the spaced-apart position towards the approximated position to move the jaw bodies towards one another to, in turn, urge the legs of the surgical clip towards one another to form the surgical clip.

2. The surgical system according to claim 1 , wherein the tissue contacting surface of at least one of the jaw members is adapted to connect to a source of electrosurgical energy.

3. The surgical system according to claim 1 , wherein the chuck of each jaw body defines a channel configured to receive a portion of one of the legs of the surgical clip therein.

4. The surgical system according to claim 1 , wherein the chuck of each jaw body defines at least one location feature, and wherein each leg of the surgical clip defines at least one complementary location feature configured to engage the at least one location feature to facilitate alignment of the surgical clip relative to the adapter.

5. The surgical system according to claim 4 , wherein the at least one location feature is at least one recess and wherein the at least one complementary location feature is at least one knob configured for engagement within the at least one recess.

6. The surgical system according to claim 4 , wherein the chuck of each jaw body includes a pair of spaced-apart feet configured to receive a portion of the surgical clip therebetween, each foot defining one of the at least one location features.

7. The surgical system according to claim 1 , wherein the adapter is engaged in a pre-compressed position within the end effector assembly.

8. The surgical system according to claim 7 , wherein the adapter defines an at-rest position wherein the interconnect band defines a first radius of curvature, and wherein, when the adapter is engaged with the end effector assembly, the adapter is retained in the pre-compressed position wherein the interconnect band is flexed to define a second radius of curvature smaller than the first radius of curvature.

9. The surgical system according to claim 1 , wherein the surgical clip is engaged in a pre-compressed position within the adapter.

10. The surgical system according to claim 9 , wherein the surgical clip defines an initial condition wherein the backspan defines a first radius of curvature, and wherein, when the surgical clip is engaged with the adapter, the surgical clip is retained in the pre-compressed condition wherein the backspan is flexed to define a second radius of curvature smaller than the first radius of curvature.