Adjustable curved medical catheter and assembling method thereof
AssigneeLifetech Scientific (Shenzhen) Co., Ltd.
InventorsTingchao Zhang, Yang Li, Quanjie Jiang, Mingyang Cai
Life of this patent
Estimating the term…
Abstract
An adjustable curved medical device includes a catheter, a handle, and a traction wire provided in the catheter. The distal end of the traction wire is connected to the distal end of the catheter. A retainer device is provided in the handle, and includes a rotating member and a body having a receiving groove for receiving the rotating member, and a guiding hole extending through the outer wall of the body to the receiving groove. A slot formed between the rotating member and the inner wall of the body is smaller than the diameter of the traction wire. The proximal end of the traction wire extends through the guiding hole and engages in the slot.
Claims20
An adjustable curved medical device, comprising:
- a catheter having a distal end, a proximal end;
- a handle provided at the proximal end of the catheter;
- a traction wire provided in the catheter having a length, and having a diameter, a distal end and a proximal end, with the distal end of the traction wire connected to the distal end of the catheter and the entire length of the traction wire positioned within the adjustable curved medical device and having its proximal end extending to the handle;
- a retainer device provided in the handle and having a body and a rotating member, the body having a receiving groove for receiving the rotating member, the body also having an outer wall and an inner wall, and a guiding hole extending through the outer wall of the body to the receiving groove;
- a slot formed between the rotating member and the inner wall of the body, wherein the slot has a diameter that is smaller than the diameter of the traction wire, and wherein the proximal end of the traction wire extends through the guiding hole and engages in the slot;
- and
- a rotating drum in the handle, wherein, upon rotating the rotating drum, the retainer device slides in the axial direction of the rotating drum to drive the traction wire.
An adjustable curved medical device, comprising:
- a catheter having a distal end, a proximal end;
- a handle provided at the proximal end of the catheter;
- a traction wire provided in the catheter having a length, and having a diameter, a distal end and a proximal end, with the distal end of the traction wire connected to the distal end of the catheter and the entire length of the traction wire positioned within the adjustable curved medical device and having its proximal end extending to the handle;
- a retainer device provided in the handle and having a body and a rotating member, the body having a receiving groove for receiving the rotating member, the body also having an outer wall and an inner wall, and a guiding hole extending through the outer wall of the body to the receiving groove;
- a slot formed between the rotating member and the inner wall of the body, wherein the slot has a diameter that is smaller than the diameter of the traction wire, and wherein the proximal end of the traction wire extends through the guiding hole and engages in the slot;
- wherein the rotating member and the body are respectively provided thereon with a separate stop mechanism that comprises a stop groove that extends through a portion of the rotating member and a portion of the body to fix the position of the rotating member after its rotation.
An adjustable curved medical device, comprising:
- a catheter having a distal end, and a proximal end;
- a handle provided at the proximal end of the catheter;
- a traction wire provided in the catheter and having a diameter, a distal end and a proximal end, with the distal end of the traction wire connected to the distal end of the catheter;
- a retainer device provided in the handle and having a body and a rotating member, the body having a receiving groove for receiving the rotating member, the body also having an outer wall and an inner wall, and at least three guiding holes extending through the outer wall of the body to the receiving groove, with the proximal end of the traction wire extending through one pair of the guiding holes and turning back to extend through the remaining guiding holes;
- and
- a slot formed between the rotating member and the inner wall of the body, wherein the slot has a diameter that is smaller than the diameter of the traction wire, and wherein the proximal end of the traction wire extends through one guiding hole of the at least three guiding holes and engages in the slot.
Dependencies are inferred from the claim text.