CN218484601U

CN218484601U - Brain tissue retractor

Info

Publication number: CN218484601U
Application number: CN202221497034.2U
Authority: CN
Inventors: 应建有; 赛亚杰
Original assignee: Beijing Huaxin Hospital
Current assignee: Beijing Huaxin Hospital
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-02-17
Anticipated expiration: 2032-06-15

Abstract

The utility model provides a brain tissue retractor to ensure the safety of brain tissue retraction operation. The brain tissue retracting device of the utility model comprises: the brain pressing plate is provided with a barrel body of a retracting channel capable of keeping brain tissues, and a first accommodating space with two communicated ends is formed in the barrel body; the expansion bag is provided with a bag body, the bag body is provided with a second accommodating space capable of expanding and contracting, an opening part is arranged on the bag body, and the opening part is communicated with the second accommodating space; and the flexible conduit is connected with the opening part of the bag body in a closed manner, the flexible conduit is communicated with the second accommodating space through the opening part, the bag body can be arranged in the bag body through the first end of the first accommodating space and exposed at the second end of the first accommodating space, and the first end is opposite to the second end.

Description

Brain tissue retractor

Technical Field

The utility model relates to the field of medical equipment, more specifically relates to a brain tissue leads out device.

Background

In craniocerebral surgery, it is often necessary to use a craniocerebral retraction device to pull the brain tissue to increase the spatial exposure to facilitate the smooth performance of the procedure.

Traditionally, brain tissue is primarily retracted by a brain plate in a craniocerebral retraction device. However, cerebral vessels and nerves are easily damaged by brain pressboard during the process of retracting brain tissue.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and an object of the present invention is to provide a brain tissue retraction device capable of ensuring safety of brain tissue retraction operation.

According to an aspect of the utility model, a brain tissue retractor device is provided, it includes: the brain pressing plate is provided with a cylinder body of a retracting channel capable of keeping brain tissues, and a first accommodating space with two communicated ends is formed in the cylinder body; the expansion bag is provided with a bag body, the bag body is provided with a second accommodating space capable of expanding and contracting, an opening part is arranged on the bag body, and the opening part is communicated with the second accommodating space; and the flexible conduit is connected with the opening part of the bag body in a closed manner, the flexible conduit is communicated with the second accommodating space through the opening part, the bag body can be arranged in the bag body through the first end of the first accommodating space and exposed at the second end of the first accommodating space, and the first end is opposite to the second end.

As an implementation manner, the cylinder is in a circular truncated cone shape.

As an implementation, the outer diameter of the cylinder is in the range of 0.5-15 cm.

In one implementation, the cylinder is cylindrical or conical.

As an implementation, the bladder is made of an elastic material.

In one implementation, the flexible conduit has a modulus of elasticity less than the modulus of elasticity of the dilation balloon.

As one way of achieving this, the balloon body of the expansion balloon is inflated by being injected with a liquid or gas and deflated by being withdrawn with a liquid or gas.

According to the utility model discloses, can replace traditional manual brain tissue to lead out the operation, provide the standard and lead out the mode to can reduce the danger that the operation was led out to the brain tissue, ensure to lead out the security of operation.

Drawings

Fig. 1 is a schematic view illustrating a brain tissue retracting device according to an embodiment of the present invention.

Fig. 2 is a schematic view illustrating a brain press plate in a brain tissue retraction device according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating a brain press plate in a brain tissue retraction device according to other embodiments of the present invention.

Fig. 4 is a schematic view showing a process of using the brain tissue retracting device according to the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a schematic view showing a brain tissue retracting device according to the present invention.

As shown in fig. 1, the brain tissue retractor device 100 of the present invention includes a brain pressing plate 200 and an expansion capsule 300.

The brain platen 200 is used to maintain a retracted channel of brain tissue. Specifically, the brain spatula 200 has a barrel capable of holding a retraction channel of brain tissue, and a first accommodating space with two ends communicated is formed in the barrel.

Preferably, the cylinder of the brain spatula 200 is made of medical polymer material or stainless steel material, and is used for entering the retracted channel to keep the retracted channel in a retracted state.

Further, as shown in fig. 1, the cylinder of the brain spatula 200 is preferably circular truncated cone-shaped.

Fig. 2 is a schematic view illustrating a brain compression plate in a brain tissue retraction device according to an embodiment of the present invention, as shown in fig. 2,

in addition, as shown in fig. 3, the barrel of the brain compression plate 200 may be cylindrical, elliptic conical or square round-cornered conical.

In addition, the brain compression plate 200 is preferably provided with a coating on the outer surface and the inner surface, and the coating may be made of hydrophilic, teflon, silicone oil, or the like.

In addition, the brain compression plate 200 may be made in different sizes to accommodate different retraction channel sizes. For example, the outer diameter of the brain compression plate 200 may be in the range of 0.5 to 15cm, 1cm, 5cm, or 10cm.

The expansion bladder 300 has a bladder body having a second receiving space capable of expanding and contracting, and an opening portion provided on the bladder body, the opening portion being communicated with the second receiving space.

Preferably, the dilatation balloon 300 is made of an elastic material, which may be natural latex, polyurethane, thermoplastic elastomer polymer, silicone, etc.

The flexible tube 310 is connected to the opening of the balloon body of the balloon 300 in a closed manner. The flexible conduit 310 is communicated with the second receiving space of the dilatation balloon 300 through the opening.

Preferably, the flexible conduit 310 is also made of an elastic material, but its elastic modulus is smaller than that of the dilatation balloon 300.

The flexible tube 310 may be formed integrally with the balloon body of the balloon 300, or may be formed separately and connected to the opening of the balloon 300 by a connecting sleeve or the like. A syringe may be connected to the end of the flexible tube 310 to facilitate the injection of liquid or gas through the flexible tube 310 into the dilatation balloon 300.

When the brain tissue retractor device 100 of the present invention is used, the brain tissue is retracted by the expansion balloon 300 being filled with liquid or gas and inflated, so as to establish a working channel for intracranial surgery.

That is, as shown in fig. 4, the balloon body of the expansion balloon 300 can be placed in the cylinder of the brain compression plate 200 through a first end of the first accommodating space of the brain compression plate 200 and exposed at a second end of the first accommodating space, wherein the first end is opposite to the second end.

The specific application process is as follows.

First, as shown in fig. 4 (a), the expanding bag 300 is inserted from one end of the brain pressing plate 200 with a larger diameter to make the brain pressing plate 200 sleeved on the expanding bag 300, and the end of the expanding bag 300 is exposed out of the end of the brain pressing plate 200 with a smaller diameter, liquid or gas is injected into the expanding bag 300 through an injector to expand the expanding bag 300 and tightly fit the inner wall of the brain pressing plate 200, and the diameter of the expanding bag 300 exposed out of the brain pressing plate 200 is slightly larger than the diameter of the brain pressing plate 200, so that the blood vessels and nerves are not substantially damaged when the brain pressing plate 200 is inserted into the brain tissue.

Then, as shown in fig. 4 (B), the brain tissue is retracted by the gradual entry of the brain spatula 200 from a smaller diameter to a larger diameter.

Finally, as shown in fig. 4 (C), after the fluid or gas in the dilatation balloon 300 is pumped out and the dilatation balloon 300 is taken out, the brain spatula 200 forms an operation channel to visualize the lesion such as intracerebral hematoma.

The brain tissue retraction device of the present invention has been described in detail above.

According to the utility model discloses, can replace traditional manual brain tissue to lead out the operation, provide the standard and lead out the mode, reduce the operation degree of difficulty of brain surgery, require to reduce to operation operator's technique and experience. In addition, according to the utility model discloses, can reduce the brain tissue and draw out the danger of operation, reduce inefficacy and expose, shorten operation time and reduce the wound to ensure the security that brain tissue draws out the operation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A brain tissue retraction device, comprising:

the brain pressing plate is provided with a barrel body of a retracting channel capable of keeping brain tissues, and a first accommodating space with two communicated ends is formed in the barrel body;

the expansion bag is provided with a bag body, the bag body is provided with a second accommodating space capable of expanding and contracting, an opening part is arranged on the bag body, and the opening part is communicated with the second accommodating space; and

the flexible catheter is connected with the opening part of the balloon body in a sealing way and is communicated with the second accommodating space through the opening part,

the capsule body can be arranged in the cylinder body through a first end of the first accommodating space and is exposed at a second end of the first accommodating space, wherein the first end is opposite to the second end.

2. The device of claim 1, wherein the barrel is frustoconical.

3. The device of claim 2, wherein the outer diameter of the barrel is in the range of 0.5-15 cm.

4. The device of claim 1, wherein the barrel is cylindrical or pyramidal.

5. The device of claim 1, wherein the bladder is made of an elastomeric material.

6. The device of claim 1, wherein the flexible conduit has a modulus of elasticity less than a modulus of elasticity of the dilation balloon.

7. The device according to claim 1, wherein the balloon of the dilatation balloon is inflated by being injected with a liquid or gas and deflated by being withdrawn with a liquid or gas.