Tissue Compression Device with Pressure Indicator

2:

• A device according to claim 1, wherein the ring indicator is configured to move from the concave configuration to the convex configuration when fluid pressure in the bladder reaches a selected level.

3:

• A device according to claim 1, wherein the ring indicator comprises an indicator surface facing away from the upper surface of the bladder and a contact surface facing and in contact with the upper surface of the bladder, wherein the indicator surface faces the compression axis when the ring indicator is in the concave configuration and wherein the indicator surface faces away from the compression axis when the ring indicator is in the convex configuration.

4:

• A device according to claim 3, wherein the ring indicator comprises an indicator color that contrasts with a color of the upper surface of the bladder.

5:

• A device according to claim 1, wherein the device further comprises a dial attached to the base, and wherein the ring indicator is attached to the dial.

7:

• A device according to claim 6, wherein the mating features comprise raised ribs on the inner surfaces of the plurality of dial posts and recesses formed into the inner wall of the dial channel, wherein the raised ribs are located within the recesses.

8:

• A device according to claim 6, wherein the dial comprises a dial orifice, and wherein the upper surface of the bladder is visible through the dial orifice.

9:

• A device according to claim 8, wherein the ring indicator comprises an indicator surface facing away from the upper surface of the bladder and a contact surface facing and in contact with the upper surface of the bladder, wherein the indicator surface faces the compression axis when the ring indicator is in the concave configuration and wherein the indicator surface faces away from the compression axis when the ring indicator is in the convex configuration, and wherein the indicator surface of the ring indicator is visible to a viewer viewing the upper surface of the bladder along the compression axis through the dial orifice when the ring indicator is in the concave configuration.

10:

• A device according to claim 8, wherein the upper surface of the bladder forms a curved surface that bulges upward away from the top surface of the base when the dial compresses the upper surface of the bladder and/or wherein the upper surface of the bladder comprises a matte finish.

12:

• A device according to claim 11, wherein the device further comprises:
• a second stop member extending from the top surface of the base, wherein the second stop member is located in the channel of the dial, wherein the second stop member is configured to engage with the plurality of slots to prevent rotation of the dial about the compression axis in the absence of a force acting to move the second stop member out of engagement with the plurality of stops;
• a second stop member release lever operably connected to the second stop member, wherein the second stop member release lever is configured such that movement of the second stop member release lever moves the second stop member out of engagement with the plurality of slots in the outer wall of the dial channel such that the dial can rotate about the compression axis.

13:

• A device according to claim 1, wherein a first portion of the bladder including the upper surface of the bladder is located above the top surface of the base, and wherein a second portion of the bladder including the lower surface of the bladder is located between the bottom surface of the base and a limb on which the base is retained.

14:

• A device according to claim 1, wherein the bladder comprises an upper chamber positioned adjacent a lower chamber, wherein the upper chamber is located above the top surface of the base and the lower chamber is located below the bottom surface of the base.

15:

• A device according to claim 14, wherein the bladder comprises an opening between the upper chamber and the lower chamber, wherein fluid in the upper chamber can pass into or out of the lower chamber through the opening, and wherein inflation of the bladder moves the top layer of the upper chamber away from the top surface of the base and also moves the bottom layer of the lower chamber away from the bottom surface of the base.

16:

• A device according to claim 14, wherein an outer perimeter of the upper chamber and an outer perimeter of the lower chamber are larger than the bladder orifice as measured in a plane transverse to the compression axis.

17:

• A device according to claim 14, wherein an outer perimeter of the upper chamber has a different shape than a shape of an outer perimeter of the lower chamber when projected onto a plane transverse to the compression axis.

18:

• A device according to claim 14, wherein the upper chamber comprises a first upper chamber and wherein the bladder further comprises a second upper chamber located between the first upper chamber and the top surface of the base, wherein fluid within the first upper chamber passes through the second upper chamber when moving into the lower chamber.

19:

• A device according to claim 14, wherein the lower chamber comprises a first lower chamber and wherein the bladder further comprises a second lower chamber located between the first lower chamber and the bottom surface of the base, wherein fluid within the first lower chamber passes through the second lower chamber when moving into the upper chamber.

20:

• A device according to claim 1, wherein the bladder comprises a port in fluid communication with the bladder and configured to allow for fluid delivery into the bladder.

21:

• A device according to claim 1, wherein the bladder comprises a pump configured to deliver fluid into the bladder.

23:

• A method according to claim 22, wherein the ring indicator is configured to move from the concave configuration to the convex configuration when the fluid pressure in the bladder reaches a selected level.

24:

• A method according to claim 22, wherein increasing fluid pressure within the bladder comprises increasing the volume of fluid within the bladder.

25:

• A method according to claim 22, wherein the tissue compression device comprises a dial attached to the base, and wherein the ring indicator is attached to the dial, and further wherein increasing fluid pressure within the bladder comprises rotating the dial in a first direction about an axis that extends through the upper surface of the bladder to move the dial towards the top surface of the base to compress the bladder.

26:

• A method according to claim 25, wherein the method further comprises decreasing the fluid pressure within the bladder by rotating the dial in a second direction about the axis to move the dial away from the top surface of the base.

27-40. (canceled)