CN216876524U

CN216876524U - Be used for subdural hematoma puncture guiding device

Info

Publication number: CN216876524U
Application number: CN202122188550.9U
Authority: CN
Inventors: 耿尚勇; 赵世君; 徐宁; 李虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-07-05
Anticipated expiration: 2031-09-10

Abstract

The utility model relates to a puncture guiding device for hematoma under dura mater, which comprises a guide needle tube, a drainage catheter, a guide needle core and a guide wire, wherein the guide needle tube is a hollow tube body with openings at two ends; the guide needle core is arranged in the guide needle tube, and the outer wall of the guide needle core is tightly attached to the inner wall of the guide needle tube; the guide wire can be inserted into the drainage catheter, and the drainage catheter passes through the guide needle tube and is guided into the hematoma part. The utility model is used in the subdural hematoma puncture operation, so that the position for draining subdural hematoma is more accurate, the possible injury of the operation is greatly reduced, the cost is low, the operation is convenient and quick, and an operator can place the puncture drainage catheter at an ideal position without long-term training.

Description

Puncture guiding device for subdural hematoma

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to a puncture guiding device for subdural hematoma.

Background

Chronic subdural hematoma is a common clinical disease, is different from other common hematomas, subdural hematoma is an arc-shaped hematoma on the surface of a brain, hematoma drainage is the most common operation method, and the subdural hematoma drainage mainly has two aspects of technologies at present: one is the cerebral surgery incision drilling drainage, when the technology is used, the scalp incision wound is larger, the diameter of a drilled hole is also larger, and a drainage tube is generally vertical to the surface of the brain after the tube is placed, so that the arachnoid and the cerebral cortex are easily injured; the other is minimally invasive drilling drainage, the technique does not need to cut the scalp, the bone hole is small, the wound is small, but in view of the special form of subdural hematoma, the drainage tube is not easy to control the placement angle, long-term clinical training is needed, arachnoid and brain tissues are possibly damaged along with the reduction of hematoma, the drainage effect is not good, and the like. In view of the above, there is a need for a drainage device that is both minimally invasive and easy to place.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a puncture guiding device for subdural hematoma so as to solve the technical problems that the placement angle of a drainage tube is not easy to control in the existing operation, the drainage tube is likely to damage arachnoid and brain tissues along with hematoma reduction, the drainage effect is poor, long-term clinical training is required for placement of the drainage tube, and the like.

The technical problem solved by the utility model can be realized by adopting the following scheme: a puncture guiding device for hematoma under dura mater comprises a guiding needle tube, a drainage catheter, a guiding needle core and a guiding guide wire, wherein the guiding needle tube is a hollow tube body with openings at two ends; the guide needle core is arranged in the guide needle tube, and the outer wall of the guide needle core is tightly attached to the inner wall of the guide needle tube; the guide wire can be inserted into the drainage catheter, and the drainage catheter passes through the guide needle tube and is guided into the hematoma part.

Furthermore, the steering angle is less than or equal to 90 degrees.

Further, the steering angle is 90 °.

Furthermore, a graduated scale is arranged on the guide needle tube.

Furthermore, the graduated scale and the opening at the end of the guide needle tube with the turning camber are arranged oppositely.

Furthermore, one end of the guide needle core, which is far away from the guide needle tube, is provided with a push handle protruding out of the end face of the guide needle tube, the guide needle tube can be placed in a hematoma part by pushing the push handle, and the guide needle core can be pulled out of the guide needle tube by pulling the push handle.

Furthermore, the drainage catheter is made of silica gel.

Furthermore, the guide wire is arc-shaped, the arc radian is matched with the steering curvature of the guide needle tube, the guide wire can go deep into the drainage catheter, and one end of the drainage catheter, which is provided with a plurality of guide holes, penetrates through the guide needle tube and is placed in a hematoma part.

Furthermore, the guide wire is made of metal material.

According to the puncture guiding device for the subdural hematoma, the guiding needle tube is a hollow tube with one end provided with an opening with a steering bending degree, the drainage catheter is a hose with one end provided with a plurality of flow guide holes on the side wall, the drainage direction of the drainage catheter can be adjusted after the drainage catheter passes through the guiding needle tube, so that the subdural hematoma drainage position is more accurate, the possible injury of an operation is greatly reduced, the cost is low, the operation is convenient and rapid, and an operator can place the puncture drainage catheter at an ideal position without long-term training.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of a drainage catheter insertion guide needle tube according to the present invention;

FIG. 2 is a schematic view of a guide needle cannula of the present invention;

FIG. 3 is a schematic view of the structure of the guide needle core and the guide needle tube of the present invention;

FIG. 4 is a schematic view of a guide wire operating configuration of the present invention;

FIG. 5 is a schematic illustration of the operation of an embodiment of the present invention

Main standard parts and labels:

guiding the needle tube: 1; drainage catheter: 2; guiding the needle core: 3; guiding a guide wire: 4; a flow guide hole: 5; a graduated scale: 6; a handle is pushed: 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly shown, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Examples

A puncture guiding device for subdural hematoma comprises a guide needle tube 1, a drainage catheter 2, a guide needle core 3 and a guide wire 4, as shown in figure 2, the structure of the guide needle tube is schematic, the guide needle tube 1 is a hollow tube body with openings at two ends, and the opening at one end of the guide needle tube 1 has a steering curvature; as shown in fig. 1, which is a schematic structural diagram of the guiding needle tube 1 inserted into the drainage catheter 2 in this embodiment, one end of the drainage catheter 2 contacting with a hematoma part is a flexible tube with a closed end surface, and a plurality of flow guiding holes 5 are arranged on a side wall close to the closed end surface. As shown in fig. 3, which is a schematic structural view of the guiding needle core 3 of the present invention, the guiding needle core 3 is disposed inside the guiding needle tube 1, and the outer wall of the guiding needle core 3 is closely attached to the inner wall of the guiding needle tube 1; as shown in fig. 4, which is a schematic view of the operation structure of the guide wire 4 of the present invention, the guide wire 4 can be inserted into the drainage catheter 2, and the drainage catheter 2 is guided into the hematoma site through the guide needle tube 1.

Furthermore, the steering bending degree alpha of the guide needle tube 1 is less than or equal to 90 degrees.

Further, the steering bending degree alpha of the guide needle tube 1 is 90 degrees.

Furthermore, a graduated scale 6 is arranged on the guide needle tube 1.

Furthermore, the graduated scale 6 is arranged opposite to the opening at the end of the guide needle tube 1 with the turning camber.

Furthermore, one end of the guide needle core 3, which is far away from the guide needle tube 1, is provided with a push handle 7 protruding out of the end face of the guide needle tube 1, the guide needle tube 1 can be placed in a hematoma part by pushing the push handle 7, and the guide needle core 3 can be pulled out of the guide needle tube 1 by pulling the push handle 7.

Further, the drainage catheter 2 is made of silica gel.

Furthermore, the guide wire is arc-shaped, the arc radian is matched with the steering curvature of the guide needle tube, the guide wire 4 can go deep into the drainage catheter 2, and one end of the drainage catheter 2 provided with a plurality of guide holes 5 penetrates through the guide needle tube 1 and is placed in a hematoma part.

Further, the guide wire 4 is made of metal.

As shown in figure 5, different from other common hematomas, the subdural hematoma is an arc-shaped hematoma on the surface of the brain, if a drainage tube is vertically inserted into a hematoma cavity according to a general hematoma puncture method, the drainage tube can be pricked on the brain tissue along with the swelling of the hematoma on the surface of the brain, the drainage catheter 2 of the utility model enters the hematoma cavity in a non-vertical way and is parallel to or has a certain angle with the hematoma cavity, and after the swelling of the surface of the brain, the drainage catheter 2 covers the brain tissue, so that the risk of inserting the brain tissue is avoided. When the puncture guiding device for subdural hematoma is used in an operation, firstly, a puncture point is determined according to skull CT, and hairs at the puncture position and nearby are shaved off by a patient; secondly, after minimally invasive perforation of the skull, puncturing the dura mater by using a special surgical needle, then pushing a push handle 7 of the guide needle core 3 to place the guide needle tube 1 into a hematoma cavity, placing the guide needle tube 1 into a preoperatively determined proper position and depth of the hematoma through a graduated scale 6 on the guide needle tube 1, adjusting the direction of an opening at one end of the guide needle tube 1, which is turned to be bent, according to the surgical needs, and pulling the push handle 7 to draw out the guide needle core 3; thirdly, the porous drainage catheter 2 is inserted into the depth required by hematoma drainage through the guide needle tube 1 by using the guide wire 4, the guide wire 4 is pulled out, and the radian of the guide wire 4 made of a micro-radian metal material is matched with the steering curvature of the guide needle tube 1; fourthly, the drainage catheter 2 is fixed by suturing, and the drainage bag is connected with the suction, the irrigation and the continuous drainage according to the requirement; the extravasated blood at the hematoma part is drained out through a plurality of flow guide holes 5 arranged on the drainage catheter 2.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A puncture guiding device for subdural hematoma comprises a guide needle tube (1), a drainage catheter (2), a guide needle core (3) and a guide wire (4), and is characterized in that the guide needle tube (1) is a hollow tube body with openings at two ends, the opening at one end of the guide needle tube (1) has a steering curvature, one end of the drainage catheter (2) contacting with a hematoma part is a hose with a sealed end face, and a plurality of guide holes (5) are arranged on the side wall close to the sealed end face; the guide needle core (3) is arranged inside the guide needle tube (1), and the outer wall of the guide needle core (3) is tightly attached to the inner wall of the guide needle tube (1); the guide wire (4) can be inserted into the drainage catheter (2), and the drainage catheter (2) passes through the guide needle tube (1) and is guided into the hematoma part.

2. The penetration guide for subdural hematomas of claim 1, wherein the steering angle is less than or equal to 90 °.

3. The penetration guide for subdural hematomas of claim 2, wherein the steering angle is 90 °.

4. The puncture guide device for subdural hematoma according to claim 3, characterized in that the guide needle tube (1) is provided with a graduated scale (6).

5. The puncture guide device for subdural hematoma according to claim 4, characterized in that the graduated scale (6) is arranged opposite to the opening of the end of the guide needle tube (1) having a turning curve.

6. The puncture guide device for subdural hematoma according to claim 5, wherein one end of the guide needle core (3) far away from the guide needle tube (1) is provided with a push handle (7) protruding out of the end face of the guide needle tube (1), the guide needle tube (1) can be placed into the hematoma part by pushing the push handle (7), and the guide needle core (3) can be pulled out of the guide needle tube (1) by pulling the push handle (7).

7. The puncture guide device for subdural hematoma according to claim 6, wherein the drainage catheter (2) is made of silica gel.

8. The puncture guide device for subdural hematoma according to claim 7, wherein the guide wire (4) is arc-shaped, the arc-shaped radian is matched with the steering curvature of the guide needle tube (1), the guide wire (4) can go deep into the drainage catheter (2), and one end of the drainage catheter (2) provided with a plurality of guide holes (5) is inserted into the hematoma part through the guide needle tube (1).

9. The puncture guide device for subdural hematoma according to claim 8, wherein the guide wire (4) is made of metal.