Stent with coiled spring

1. A stent for repairing a pipe comprising:

a coiled extension stent spring comprising a plurality of spring coils; and

a seal assembled with the coiled extension stent spring and configured to engage an inner surface of a pipe, the seal defining an elongated tubular sleeve encasing each of the plurality of spring coils, wherein the stent is configurable in an extended configuration and a contracted configuration, the coiled extension stent spring biasing the stent to the contracted configuration.

2. The stent for repairing a pipe of claim 1 , wherein:

the coiled extension stent spring defines a first end and an opposing second end;

the plurality of spring coils extend between the first end and the second end; and

a pulling structure is oriented at each of the first end and second end.

3. The stent for repairing a pipe of claim 2 , wherein the pulling structure at the first end defines a first hook and the pulling structure at the second end defines a second hook.

4. The stent for repairing a pipe of claim 1 , wherein:

the stent defines a contracted stent diameter in the contracted configuration;

the stent defines an extended stent diameter in the extended configuration; and

the contracted stent diameter is greater than the extended stent diameter.

5. The stent for repairing a pipe of claim 1 , wherein:

the coiled extension stent spring defines a diameter and a length;

the diameter of the coiled extension stent spring is greater in the contracted configuration than in the extended configuration; and

the length of the coiled extension stent spring is lesser in the contracted configuration than in the extended configuration.

6. The stent for repairing a pipe of claim 1 , wherein:

the coiled extension stent spring defines a first end and an opposing second end;

the coiled extension stent spring further defines an outer surface and an opposite inner surface;

the inner surface defines a void extending from the first end to the second end; and

a central axis extends through a center of the void.

7. The stent for repairing a pipe of claim 6 , wherein:

the seal defines a hollow cylindrical structure;

the hollow cylindrical structure wraps around a circumference of the coiled extension stent spring; and

an inner surface of the seal engages an outer surface of the coiled extension stent spring.

8. The stent for repairing a pipe of claim 7 , wherein the seal is concentric to the central axis.

9. A stent for repairing a pipe comprising:

a coiled wrapped stent spring comprising a plurality of spring coils, wherein the spring coils define a plurality of closed coil ends and a plurality of open coil channels; and

a seal assembled with the coiled wrapped stent spring and configured to engage an inner surface of a pipe, wherein the stent is configurable in an compressed configuration and an expanded configuration, the coiled wrapped stent spring biasing the stent to the expanded configuration.

10. The stent for repairing a pipe of claim 9 , wherein each of the closed coil ends is oriented in a facing relationship with a corresponding one of the open coil channels.

11. The stent for repairing a pipe of claim 10 , wherein:

in the expanded configuration, each of the closed coil ends is biased away from the corresponding one of the open coil channels by a spring force of the coiled wrapped stent spring; and

in the compressed configuration, each of the closed coil ends is moved towards the corresponding one of the open coil channels by a compression force.