CN213191995U

CN213191995U - Segmented adjustable bent sheath tube

Info

Publication number: CN213191995U
Application number: CN202021065672.8U
Authority: CN
Inventors: 卜彦峰; 徐安晨
Original assignee: Haisheng Medical Technology Ningbo Co ltd
Current assignee: Haisheng Medical Technology Ningbo Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-05-14
Anticipated expiration: 2030-06-11

Abstract

The utility model provides a curved sheath pipe of segmentation adjustable, includes the inner tube, the inner tube on cup joint fixedly connected with distal end anchor ring and near-end anchor ring, near-end anchor ring be located the below of distal end anchor ring, distal end anchor ring on fixedly connected with distal end haulage rope, near-end anchor ring on fixedly connected with near-end haulage rope, the outside of inner tube be provided with the outer tube, the outer tube from last to dividing into distal end turn section, near-end turn section and main part down in proper order, the hardness of distal end turn section be less than the hardness of near-end turn section, the near-end turn section the hardness be less than the hardness of main part. The utility model discloses following beneficial effect has: three-layer composite construction, and can adjust the curve at two anchor points, can realize that the S type is crooked, can be more convenient through circuitous route or reach the position that is difficult to the location interveneeing and diagnose, control convenient accurate, support and propelling movement are good.

Description

Segmented adjustable bent sheath tube

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to curved sheath pipe of segmentation adjustable.

Background

At present, an interventional operation usually needs to establish a channel between a diseased part in a patient and an external operation end by means of an interventional diagnosis and treatment sheath (such as a guiding sheath, a conveying sheath, a guiding catheter and the like) so as to introduce various diagnosis and treatment instruments, medicines, implantation instruments and the like to the diseased part of the patient, and achieve the purpose of avoiding surgical operation and reaching the diseased part. Intervene type and diagnose sheath pipe and generally comprise sheath pipe body and the operating handle who installs this sheath pipe body, and the sheath pipe body is longer and have the inner chamber as the passageway, and the sheath pipe body has distal end and near-end, and the distal end can conveniently get into human lumen (like the blood vessel), and the near-end then is used for connecting operating handle and supplies professional medical personnel to use. In the interventional operation, medical personnel need to send the distal end of the sheath catheter body to a preset position through the external operation on the operating handle under the guidance of an X-ray machine.

In order to adapt the distal end of the sheath tube body to the anatomical shape of a specific lesion site, people pre-mold the distal end of the sheath tube body into different curved shapes according to different sheath tube applications, however, even if the distal end pre-molded interventional diagnosis sheath tube with various shapes and angles is developed, the following situations frequently occur in clinical use: the distal end pre-molded sheath tubes with various shapes and angles can not be adapted to individual physiological anatomical structures one by one, when the problems occur in the operation, a doctor usually withdraws the sheath tube and selects the pre-molded sheath tubes with other shapes again, so that the operation consumption is improved, the cost born by a patient is increased, the probability that the lumen cavity tissues of the patient are damaged is increased, the operation time is prolonged, and the radiation time of the patient is prolonged.

At present, after intervention, an anchor point is pulled by adjusting a traction rope inside, and after force is applied to two ends of the anchor point, the anchor point can be bent leftwards or rightwards, but S-shaped bending cannot be formed, so that the limitation is large.

Disclosure of Invention

To the not enough among the prior art, the utility model provides a curved sheath pipe of segmentation adjustable solves current sheath pipe and can only bend on a left side, also can bend on the right side, but can't form the crooked problem of S type.

The utility model discloses a following technical scheme realizes.

The utility model provides a curved sheath pipe of segmentation adjustable, includes the inner tube, the inner tube on cup joint fixedly connected with distal end anchor ring and near-end anchor ring, near-end anchor ring be located the below of distal end anchor ring, distal end anchor ring on fixedly connected with distal end haulage rope, near-end anchor ring on fixedly connected with near-end haulage rope, the outside of inner tube be provided with the outer tube, the outer tube from last to dividing into distal end turn section, near-end turn section and main part down in proper order, the hardness of distal end turn section be less than the hardness of near-end turn section, the near-end turn section the hardness be less than the hardness of main part. Three-layer composite construction, and can adjust the curve at two anchor points, can realize that the S type is crooked, can be more convenient through circuitous route or reach the position that is difficult to the location interveneeing and diagnose, control convenient accurate, support and propelling movement are good.

Preferably, the ends of the inner pipe and the outer pipe are also provided with flexible heads. The arc-shaped flexible TIP head can reduce the trauma to the tissue to the maximum extent.

Preferably, the far-end traction rope and the near-end traction rope are arranged in a 180-degree mode by taking the axis of the inner pipe as a circle center. Between 150 degrees and 180 degrees.

Preferably, the proximal anchoring ring is provided with an opening for receiving a distal pull cord. The device is convenient for the random movement of the far-end hauling rope, and the size of the whole device is not changed.

Compared with the prior art: three-layer composite construction, and can adjust the curve at two anchor points, can realize that the S type is crooked, can be more convenient through circuitous route or reach the position that is difficult to the location interveneeing and diagnose, control convenient accurate, support and propelling movement are good.

Drawings

Fig. 1 is a schematic structural view of the far end bending section and the near end bending section of the hidden outer tube of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the utility model after S-shaped bending.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the embodiments.

A segmented adjustable bent sheath tube comprises an inner tube 1, wherein a far-end anchoring ring 2 and a near-end anchoring ring 4 are fixedly connected to the inner tube 1 in a sleeved mode, the near-end anchoring ring 4 is located below the far-end anchoring ring 2, a far-end traction rope 3 is fixedly connected to the far-end anchoring ring 2, a near-end traction rope 5 is fixedly connected to the near-end anchoring ring 4, an outer tube is arranged on the outer side of the inner tube 1 and is sequentially divided into a far-end bending adjusting section 7, a near-end bending adjusting section 8 and a main body 9 from top to bottom, the hardness of the far-end bending adjusting section 7 is smaller than that of the near-end bending adjusting section 8, the hardness of the near-end bending adjusting section 8 is smaller than that of the main body 9, flexible heads 6 are further arranged at the end portions of the inner tube 1 and the outer tube, the far-end traction rope 3 and the near-end traction rope 5 are arranged in a 180-degree mode by taking the axis center of the inner tube 1 as the circle center, the opening is adapted to receive a distal pull cord 3.

In the use, need intervene the sheath pipe of vertical state in fig. 2, the sheath pipe body has distal end and near-end, and the distal end can conveniently get into human lumen, and the near-end then is used for connecting operating handle and supplies professional medical personnel to use.

In an interventional operation, medical personnel need to operate a near end under the guidance of an X-ray machine, when the near end is operated, the far-end traction rope 3 is pulled, at the moment, the far-end traction rope 3 drives the inner tube 1 and the far-end bending adjusting section 7 of the outer tube to turn to the right side together, if the near-end traction rope 5 is pulled, at the moment, the near-end traction rope 5 drives the inner tube 1 and the near-end bending adjusting section 8 of the outer tube to turn to the left together, the whole body is S-shaped as shown in figure 2, at the moment, the hardness of the far-end bending adjusting section 7 is lower than that of the near-end bending adjusting section 8, the hardness of the near-end bending adjusting section 8 is lower than that of the main body 9, the far-end traction line, the bending adjusting angle is.

In the operation process, the main body 9 is always kept in a vertical state and is not influenced, a distal bending section with the hardness of 20-30D, a proximal bending section with the hardness of 40-60D and a main body section with the hardness of 70-75D.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. The utility model provides a curved sheath pipe of segmentation adjustable, includes inner tube (1), its characterized in that, inner tube (1) on cup joint fixedly connected with distal end anchor ring (2) and near-end anchor ring (4), near-end anchor ring (4) be located the below of distal end anchor ring (2), distal end anchor ring (2) on fixedly connected with distal end haulage rope (3), near-end anchor ring (4) on fixedly connected with near-end haulage rope (5), the outside of inner tube (1) be provided with the outer tube, the outer tube from last to dividing into distal end turn section (7), near-end turn section (8) and main part (9) down in proper order, the hardness of distal end turn section (7) be less than the hardness of near-end turn section (8), the hardness of near-end turn section (8) be less than the hardness of main part (9).

2. The segmented adjustable bending sheath according to claim 1, wherein the ends of the inner tube (1) and the outer tube are further provided with flexible heads (6).

3. The sheath according to claim 2, wherein the distal end pulling rope (3) and the proximal end pulling rope (5) are arranged at 180 degrees around the axis of the inner tube (1).

4. A segmented adjustable curved sheath according to claim 3, characterised in that the proximal anchoring ring (4) is provided with an opening for receiving the distal pulling rope (3).