Valve loader method, system, and apparatus
View Patent ↗A valve loading system is provided that uses a valve loader to transfer a valve or other medical device from a storage cartridge into a deployment catheter. The valve or other medical device can be implanted or positioned within a patient using the catheter after the valve or other medical device has been compressed and loaded into the catheter using the valve loader. The process then can be repeated by using the valve loading system to load or introduce another valve or other medical device into the catheter.
1. A deployment catheter system comprising:
a catheter shaft comprising a proximal end and a distal end and a lumen extending through the catheter shaft, the distal end being configured to receive a deployable medical device;
a stabilization wire disposed at least partially within the catheter shaft, the stabilization wire being configured to engage with a proximal end of the deployable medical device; and
a proximal handle assembly, the proximal handle assembly comprising:
a sleeve slider;
a sleeve slider housing coaxially arranged with the sleeve slider, the sleeve slider housing fixedly coupled with the stabilization wire; and
at least one of a frictional member fully disposed between an outer diameter of the sleeve slider housing and an inner diameter of the sleeve slider to increase sliding friction between the sleeve slider and the sleeve slider housing or a frictional sleeve configured to frictionally resist movement of the stabilization wire,
wherein the sleeve slider is the outermost component of the proximal handle assembly,
wherein the sleeve slider housing and stabilization wire move independent from the sleeve slider.
2. The deployment catheter system of claim 1 , wherein the frictional member is configured to increase sliding friction between the sleeve slider and the sleeve slider housing in one sliding direction relative to the sliding friction between the sleeve slider and the sleeve slider housing in an opposite sliding direction.
3. The deployment catheter system of claim 2 , wherein the frictional member comprises a collar.
4. The deployment catheter system of claim 3 , wherein the collar comprises rubber.
5. The deployment catheter system of claim 2 , wherein the frictional sleeve comprises a material fixed in position around at least a portion of the stabilization wire.
6. The deployment catheter system of claim 5 , wherein the sleeve slider housing comprises a friction cavity configured to contain the at least one frictional member.
7. The deployment catheter system of claim 1 , further comprising a biasing member configured to bias the sleeve slider housing in the proximal direction with respect to the sleeve slider.
8. The deployment catheter system of claim 7 , wherein the biasing member comprises at least one of a coil spring or a resilient tube.