Umbrella-shaped dura mater closure repairing device

Abstract

The utility model discloses an umbrella-shaped dura mater closure repairing device, which relates to the technical field of medical treatment and comprises an upper umbrella cover and a lower umbrella cover which are oppositely arranged, the upper umbrella cover and the lower umbrella cover are respectively provided with a conical point, the conical point of the upper umbrella cover and the conical point of the lower umbrella cover are oppositely arranged and fixedly connected with each other, and an umbrella opening of the upper umbrella cover is arranged upwards when the device is in an open state. An umbrella opening of the upper umbrella cover is arranged downwards when the device is used, and the bottom face of the upper umbrella cover is attached to the top face of the lower umbrella cover. According to the utility model, the repairing mode of dura mater suturing during minimally invasive surgery is simplified, and the operation is simple during use; dura mater notches and defects are closed by means of attachment of the upper umbrella cover and the lower umbrella cover; umbrella covers of different sizes can be designed and used according to the size of a hard film notch, and meanwhile operation and imbedding in a channel are facilitated. The upper umbrella cover and the lower umbrella cover are made of absorbable materials, and foreign matter removal reaction is reduced; the upper umbrella cover and the lower umbrella cover are made of flexible materials, and operation in a channel is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, in particular to an umbrella-shaped dural closure and repair device. Background Art

[0002] During minimally invasive neurosurgery using a foraminal endoscope to remove subdural tumors or perform filum terminale transection, the dura mater needs to be opened within the surgical channel. After the subdural operation, the dura mater needs to be sutured to avoid cerebrospinal fluid leakage or spinal canal hemorrhage. Since the suture is performed within the surgical channel, the operation of the instrument is restricted and difficult, and it cannot be sutured tightly, resulting in complications such as postoperative epidural effusion and bleeding.

[0003] At the same time, during the placement of pedicle screws in orthopedics, incorrect operation causes rupture and defect of the dura mater, and tight dural suture is also required. However, the suture is difficult, and sometimes only muscle and bone wax are used for occlusion.

[0004] In view of the above problems, the utility model hereby provides an umbrella-shaped dural closure and repair device. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and an umbrella-shaped dural closure and repair device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The umbrella-shaped dural closure and repair device includes an upper umbrella surface and a lower umbrella surface which are oppositely arranged. The upper umbrella surface and the lower umbrella surface are both provided with cone points. The cone points of the upper umbrella surface and the lower umbrella surface are oppositely arranged and fixedly connected to each other. The umbrella opening of the upper umbrella surface is upward in the open state of the device, and the umbrella opening of the upper umbrella surface is downward in the use state of the device. Moreover, the bottom surface of the upper umbrella surface is mutually attached to the top surface of the lower umbrella surface.

[0008] Furthermore, the umbrella opening angle a of the upper umbrella surface is smaller than the umbrella opening angle b of the lower umbrella surface.

[0009] Furthermore, the cross-section of the umbrella opening of the upper umbrella surface and the lower umbrella surface is circular, elliptical or rhombic.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model simplifies the repair method of dural suture during minimally invasive surgery, and the operation is simple during use; the dural defect and deficiency are closed by relying on the attachment of the upper and lower umbrella surfaces; umbrella surfaces of different sizes can be designed and used according to the size of the dural defect, which is also beneficial for operation and placement within the channel; the upper and lower umbrella surfaces are made of absorbable materials to reduce the foreign body rejection reaction; the upper and lower umbrella surfaces are made of flexible materials, which is convenient for operation within the channel. Description of the Drawings

[0012] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0013] Figure 1 It is a schematic structural view of the present utility model in an open state;

[0014] Figure 2 It is a schematic structural view of the present utility model in a use state;

[0015] Figure 3 It is a cross-sectional view of the present utility model.

[0016] In the figure: 1 upper umbrella surface, 2 lower umbrella surface, 3 conical point. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model;

[0018] Refer to Figures 1-3 , the umbrella-shaped dural closure repair device includes an upper umbrella surface 1 and a lower umbrella surface 2 which are oppositely arranged. The conical point 3 of the upper umbrella surface 1 is oppositely arranged and fixedly connected to the conical point 3 of the lower umbrella surface 2. The umbrella opening of the upper umbrella surface 1 is upward in the open state of the device, and the umbrella opening of the upper umbrella surface 1 is downward in the use state of the device, and the bottom surface of the upper umbrella surface 1 is in mutual fit with the top surface of the lower umbrella surface 2.

[0019] As Figure 3 shown, the umbrella opening angle a of the upper umbrella surface 1 is smaller than the umbrella opening angle b of the lower umbrella surface 2. Both the upper umbrella surface 1 and the lower umbrella surface 2 are made of materials that can be absorbed by human tissues, thereby reducing the foreign body rejection reaction.

[0020] The upper umbrella surface 1 and the lower umbrella surface 2 can be circular structures, or can be designed as elliptical or rhombic structures. As Figures 1-3 shown, in this embodiment, the upper umbrella surface 1 and the lower umbrella surface 2 are circular structures.

[0021] The working principle of the present utility model is as follows:

[0022] During use, the lower umbrella surface 2 is placed under the dura mater through the dural defect, and then the upper umbrella surface 1 is turned down and attached to the lower umbrella surface 2, and the dura mater can be closed. This device simplifies the repair method of dural suture during minimally invasive surgery, and is simple to operate during use; relies on the attachment of the upper and lower umbrella surfaces to close the dural gap and defect; can be designed with umbrella surfaces of different sizes and used according to the size of the dural gap, while facilitating operation and placement in the channel; the upper and lower umbrella surfaces are made of absorbable materials, reducing the foreign body rejection reaction; the upper and lower umbrella surfaces use flexible materials, facilitating operation in the channel.

Claims

1. An umbrella-shaped dura mater closure repair device, comprising an upper umbrella surface (1) and a lower umbrella surface (2) arranged opposite to each other, characterized in that: The upper umbrella surface (1) and the lower umbrella surface (2) are both provided with a cone point (3), the cone point (3) of the upper umbrella surface (1) and the cone point (3) of the lower umbrella surface (2) are arranged opposite to each other and are fixedly connected to each other, the umbrella opening of the upper umbrella surface (1) is arranged upward when the device is in an open state, and the umbrella opening of the upper umbrella surface (1) is arranged downward when the device is in use, and the bottom surface of the upper umbrella surface (1) and the top surface of the lower umbrella surface (2) are in contact with each other.

2. The umbrella-shaped dura mater closure repair device according to claim 1, characterized in that: The opening angle a of the upper umbrella surface (1) is smaller than the opening angle b of the lower umbrella surface (2).

3. The umbrella-shaped dura mater closure repair device according to claim 1, characterized in that: The cross-sections of the upper umbrella surface (1) and the lower umbrella surface (2) are circular, elliptical or diamond-shaped.

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