Self suturing anchor device
View Patent ↗A catheter securement device which automatically deploys one or more sutures to secure a catheter without requiring the practitioner to manually suture the catheter to the self-suturing anchor device. A ratchet mechanism having one or more rotatable ratchet members, which pivot, and a ratchet member engagement spring, which maintains contact between the teeth of the rotatable ratchet member and the teeth of the ratchet ring. A suture retention assembly is provided to maintain the position of the sutures to minimize disruption of the sutures before deployment of the sutures.
1. A catheter anchor device for use with a catheter, the anchor device comprising:
a stationary base secured to the patient;
a rotatable ring secured to the stationary base such that the rotatable outer ring can be rotated by the user relative to the stationary base;
one or more sutures positioned internally within the rotatable ring such that actuation of the rotatable ring automatically deploys the one or more sutures from within the rotatable ring to engage a sidewall of the catheter and to secure the catheter relative to the rotatable ring;
a ratchet mechanism mechanically operable with the rotatable ring such that when a user rotates the rotatable ring, the ratchet mechanism is engaged during rotation of the rotatable ring, the ratchet mechanism comprising a rotatable ratchet member which maintains cooperative engagement of the components of the ratchet mechanism allowing movement of the rotatable ring in a first direction while minimizing inadvertent movement of the rotatable ring in a second direction securing the rotational position of the rotatable ring against movement in the second direction;
means for retaining the one or more sutures in a desired location relative to the base; and
means for biasing, the means for biasing cooperating with the means for retaining to aid in retention of the one or more sutures in a desired location relative to the base.
2. The catheter anchor device of claim 1 , wherein the rotatable ratchet member comprises a spring.
3. The catheter anchor device of claim 1 , wherein the rotatable ratchet member comprises a resilient component.
4. The catheter anchor device of claim 1 , wherein the rotatable ratchet member includes a pivot point at one end and one or more teeth at the opposing end.
5. The catheter anchor device of claim 4 , wherein the ratchet mechanism comprises one or more stationary teeth and wherein the teeth of the rotatable ratchet member pass over the stationary teeth during movement of the rotatable ring.
6. The catheter anchor device of claim 5 , wherein the rotatable ratchet member allows biasing of one or more components of the ratchet mechanism allowing the one or more teeth of the rotatable ratchet mechanism to pass over the stationary teeth while maintaining contact between the one or more teeth of the rotatable ratchet mechanism and the stationary teeth.
7. The catheter anchor device of claim 6 , wherein the rotatable ratchet member comprises a pivot point which allows for movement of the one or more teeth of the rotatable ratchet mechanism allowing passage of the one or more teeth of the rotatable ratchet mechanism over the stationary teeth.
8. The catheter anchor device of claim 6 , wherein a rotatable ratchet member engagement spring is positioned adjacent the one or more teeth of the rotatable ratchet mechanism to maintain contact between the one or more teeth of the rotatable ratchet mechanism and the stationary teeth.
9. The catheter anchor device of claim 8 , wherein the rotatable ratchet member engagement spring comprises a resilient component of the head of the rotatable ratchet member which deforms as the teeth of the rotatable ratchet member pass over the stationary teeth.
10. The catheter anchor device of claim 1 , wherein the means for biasing exerts a force on the rotatable outer ring in a direction away from the stationary base.