Intracranial hematoma puncture guide

Abstract

The invention discloses an intracranial hematoma puncture orientator, comprising: a hollow tube with an S-shaped slit on one side, the inside and outside of the hollow tube are coaxial, the length is 6cm, the tube wall thickness is 2mm, the inner diameter is made into a model matching the model of a puncture drainage tube according to the model, and the width of the S-shaped slit is the same as the inner diameter of the hollow tube; blades A, blades B and blades C that are perpendicular to each other and are in a right-angle trapezoidal shape, the blades A, blades B and blades C are respectively fixedly connected on three different side surfaces of the hollow tube H, the blades A and blades B corresponding to the left and right sides are on the same plane, and the plane passes through the axis of the hollow tube and are fixedly connected to the two sides of the hollow tube H in the same direction, another blade C is fixedly connected to the opposite side of the S-shaped slit in the same direction, the surface where the blade C is located is perpendicular to the surface where the blades A and blades B are located, and the surface where the blade C is located passes through the axis of the hollow tube, and the intersection of two mutually perpendicular planes is at the axis of the hollow tube H.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to an intracranial hematoma puncture orientator. Background Art

[0002] Most of the existing cranial puncture orientation technologies are head-frame stereotactic orientation. Although the orientation is accurate, the operation is complicated, the cost is high, the clinical application is cumbersome, and special supporting software is required, and special technical training is required. Some simple orientation devices still need to complete the fixation of the head and the orientation device, and multiple imaging examinations and adjustments. Its characteristics are precision, but the operation is complicated, time-consuming, expensive, and complex to use. This orientation device is mainly used for minimally invasive puncture of intracranial hematoma. It is simple and convenient to use. It can be used after being connected to the puncture tube. For patients with emergency cerebral hemorrhage, it can save rescue time and avoid the risks brought by repeated imaging examinations and movements. The puncture accuracy is within 5mm, which can fully meet the accuracy requirements of intracranial hematoma puncture. Its characteristics are fast, convenient, simple, accurate, cheap, and easy to promote and popularize. Summary of the invention

[0003] In order to solve the above problems, the present invention provides an intracranial hematoma puncture direction device.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] Intracranial hematoma puncture guide, including:

[0006] A hollow tube with an S-shaped slit on one side. The inside and outside of the hollow tube are coaxial, 6 cm long, and the inner diameter is made to match the model of the puncture drainage tube. The width of the S-shaped slit is the same as the inner diameter of the hollow tube. The S-shaped slit ensures that the puncture tube with a metal guide needle will not fall out of the hollow tube during the puncture process. At the same time, it ensures that after the puncture is completed and the metal guide needle is removed, the puncture drainage tube with a certain elasticity can be pulled out laterally from the S-shaped slit to achieve the separation of the puncture drainage tube and the orienter (because the puncture drainage tube must be left in the skull after the puncture is completed);

[0007] The blades A, B and C are perpendicular to each other and are in the shape of a right-angled trapezoid. The blades A, B and C are fixedly connected on three different sides of the hollow tube H respectively. The corresponding blades A and B on the left and right sides are on the same plane, and this plane passes through the axis of the hollow tube and is fixedly connected to the two sides of the hollow tube H in the same direction. Another blade C is fixedly connected on the opposite side of the S-shaped gap in the same direction, and the plane where the blade C is located is perpendicular to the plane where the blades A and B are located, and the plane where the blade C is located passes through the axis of the hollow tube, and the intersection line of the two mutually perpendicular planes is at the axis of the hollow tube H; during surgical puncture, the silicone puncture and drainage tube is inserted into the hollow tube H, and during puncture, the puncture and drainage tube is ensured to be punctured along the axis direction of the hollow tube H, that is, the puncture direction is ensured to be in the direction of the perpendicular intersection line between the plane where the blades A / B are located and the plane where the blade C is located, and the A / B plane and the C plane are used as reference planes, and the angle is adjusted to overlap with the corresponding scalp line plane to achieve directional puncture.

[0008] Furthermore, it also includes: an extended blade A', an extended blade B' and an extended blade C', which are used to extend blade A, blade B and blade C respectively to increase the reference surface and improve the puncture accuracy.

[0009] Furthermore, the extended blade A', the extended blade B' and the extended blade C' are connected with the blade A, the blade B and the blade C by means of an insert connection.

[0010] Furthermore, the distal ends of the extended blade A', the extended blade B' and the extended blade C' present a trapezoidal tip, which contacts the scalp and acts as a fixing guide, thereby improving the accuracy and stability of puncture.

[0011] Furthermore, one end of the extended blade A', the extended blade B' and the extended blade C' is provided with a gap with a width of 1 mm for connecting with the blade A, the blade B and the blade C respectively, so that the three extended blades A', the extended blade B' and the extended blade C' can be respectively inserted and connected with the blade A, the blade B and the blade C to extend the corresponding planes, and can move on the same plane to adapt to changes in the patient's head shape and the surgical space structure.

[0012] The present invention has the following beneficial effects:

[0013] 1) The application is simple and fast. The operator only needs to connect the directional device to the puncture tube to perform directional puncture. For critically ill patients undergoing cerebral hemorrhage surgery, rescue time is very important. This invented product can complete the operation in one step, and continuous visual reference aiming and morphological angle adjustment are performed during the puncture process, without the need for repeated head CT examinations and numerical corrections.

[0014] 2) No orientation or head fixation is required, and no additional traumatic or invasive operations are required.

[0015] 3) No special training is required, the operator can use it directly after a simple understanding of the product structure.

[0016] 4) Low cost, only mechanical structure, low product cost, easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of an intracranial hematoma puncture orientator body according to an embodiment of the present invention.

[0018] Figure 2 The present invention is a schematic diagram of the overall structure of an intracranial hematoma puncture orientator according to an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the structure of the extended blade A', the extended blade B' and the extended blade C' in the embodiment of the present invention.

[0020] Figure 4 Schematic diagram of puncture of the anterior horn of the lateral ventricle.

[0021] Figure 5 Schematic diagram of transtemporal hematoma puncture.

[0022] Figure 6 Schematic diagram of puncture of cerebellar and brainstem hematoma. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] like Figure 1-Figure 3As shown, an embodiment of the present invention provides an intracranial hematoma puncture direction device, comprising a hollow tube with an S-shaped gap on one side, blades A, blades B and blades C that are perpendicular to each other and are in a right-angled trapezoidal shape, and extended blades A', extended blades B' and extended blades C' used to extend blades A, blades B and blades C respectively to increase the reference surface and improve the puncture accuracy. The thickness of blades A, blades B and blades C are all 1mm; the hollow tube with an S-shaped gap on one side is coaxial inside and outside, 6cm long, and 2mm thick. It is made of metal or hard plastic. The inner diameter is made according to the model of the puncture drainage tube to match it. The width of the S-shaped gap is the same as the inner diameter of the hollow tube. The S-shaped gap ensures that the puncture tube with a metal guide needle will not fall out of the hollow tube during the puncture process, and at the same time ensures that after the metal guide needle is removed after the puncture is completed, the silicone material with a certain elasticity can be punctured. The drainage tube can be pulled out laterally from the S-shaped gap to separate the puncture drainage tube from the direction finder (because the puncture drainage tube must be left in the skull after puncture); the width of blade A, blade B, and blade C are all 4 cm, and they are fixedly connected on three different sides of the hollow tube H, blade A and blade B are fixed on the corresponding two sides of the hollow tube H, blade A and blade B are cut on the same plane, this plane passes through the axis of the hollow tube H, and the plane where blade C is located is perpendicular to the plane where blade A and blade B are located, and the plane where blade C is located passes through the axis of the hollow tube, and the intersection of the two mutually perpendicular planes is at the axis of the hollow tube H; during surgical puncture, the silicone puncture drainage tube is inserted into the hollow tube H, and during puncture, the puncture drainage tube is ensured to be punctured along the axial direction of the hollow tube H, that is, the puncture direction is ensured to be in the direction of the intersection line between the plane where blade A / B is located and the plane where blade C is located, so as to achieve directional puncture.

[0025] In this embodiment, the extended blade A', the extended blade B' and the extended blade C' are connected with the blade A, the blade B and the blade C by inserting and connecting.

[0026] In this embodiment, the distal ends of the extended blade A', extended blade B' and extended blade C' present trapezoidal tips, which contact the scalp and act as a fixing guide, thereby improving the accuracy and stability of puncture.

[0027] In this embodiment, one end of the extended blade A', the extended blade B' and the extended blade C' is provided with a gap with a width of 1 mm for connecting with blade A, blade B and blade C respectively. The width of the gap is the same as the thickness of blade A, blade B and blade C, so that they can be fully fixed during the plug-in connection to improve the accuracy, so that the three extended blades A', extended blade B' and extended blade C' can be plug-in connected with blade A, blade B and blade C respectively, extending the corresponding planes, and can move on the same plane to adapt to changes in the patient's head shape and surgical space structure.

[0028] like Figure 4As shown, the present invention is applied to the puncture of the anterior horn of the lateral ventricle: the conventional puncture point is 8 cm above the center of the eyebrows and 2 cm away from the midline. The puncture direction is to align the nose tip left and right, and the front and back are on the imaginary plane connecting the puncture point and the external auditory meatus or the imaginary connecting line of the two external auditory meatuses. According to the above method, the puncture point O of the anterior horn of the lateral ventricle is selected, and the connecting lines OE and OF on both sides of the external auditory meatus are drawn through point O to form a plane OEF. The nose tip connecting line OK is drawn through point O. During the operation, a bone hole is drilled through point O, and the dura mater is punctured. The puncture drainage tube is inserted into the hollow tube of the orientator, and three extended blades are connected. The tip of the puncture tube is inserted into the bone hole about 1 cm (to ensure that the puncture tube does not touch the brain tissue in the bone hole), and the angle of the orientator is adjusted so that the blade A' / B The reference surface of the blade is aligned with the corresponding lines OE and OF on both sides, that is, the reference surface of the blade A' / B' and the OEF surface overlap. Under the premise of ensuring that the reference surface of the blade A' / B' and the OEF surface overlap, adjust the direction of the C' surface of the blade left and right to make the C' surface of the blade align with the nose tip line OK. Puncture in this direction to 6.5cm, pull out the metal guide needle, pull the puncture drainage tube laterally out of the S-shaped gap to separate it, and suture the drainage tube to the scalp to achieve precise puncture.

[0029] The puncture of the posterior horn of the lateral ventricle is similar to that of the anterior horn. After measuring based on the CT scan of the skull, a line can be drawn on the scalp, and the locator can be used as a reference for aiming to achieve precise puncture.

[0030] like Figure 5 As shown, the present invention is applied to the puncture of the temporal hematoma: the method of puncturing the temporal hematoma: during surgical puncture, now combined with the numerical measurement of the head CT, determine the center point of the hematoma largest layer (i.e., the puncture plane) at the temporal or frontal projection point as the puncture point O, and then draw the projection line L of the head CT scanning plane passing through the puncture point on the scalp (the projection line is actually drawn in an arc shape on the scalp, which can determine a surface), and then draw another line J through the puncture point perpendicular to the projection line of the CT scanning plane (the head image is actually drawn in an arc shape on the scalp, which can determine a surface). During surgical puncture, first drill a bone hole at the puncture point and puncture the dura mater, and then Put a metal guide needle on the puncture and drainage tube of the corresponding model, insert it into the hollow tube of the orienter, and expose 1 cm of the puncture tube head. Insert the exposed 1 cm into the bone hole with an appropriate depth without damaging the brain tissue. Adjust the angle so that the surface of blade A / B is aligned with the projection line L of the hematoma puncture surface on the scalp, that is, the surface reference surface blade A / B and the puncture plane are in the same plane, and the blade C reference surface is aligned with the vertical line J on the scalp. According to this direction, the puncture depth is the depth that has been measured in advance. Pull out the metal guide needle, pull the puncture and drainage tube laterally out of the S-shaped gap to separate it, and suture the drainage tube to the scalp to complete the precise puncture.

[0031] like Figure 6As shown, the present invention is applied to puncture of cerebellum and brainstem hematoma: the puncture point is determined through clinical cranial CT measurement, and a reference line is drawn. During puncture, the three extension blades are connected to the three blades according to actual needs, and the angles are adjusted and fixed so that the surfaces of the two sets of blades coincide with the two scalp reference lines to achieve accurate puncture. The main function of the three extension blades is to increase the range of the reference surface and improve the accuracy. The angles of the three extension blades can be adjusted according to the head shape and surgical space so that the ends of the extension blades contact the scalp to play a fulcrum fixing role.

[0032] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An intracranial hematoma puncture directional device, characterized in that: include: A hollow tube with an S-shaped gap on one side, the inside and outside of the hollow tube are coaxial, 6 cm long, and the inner diameter is made to match the model of the puncture drainage tube. The width of the S-shaped gap is the same as the inner diameter of the hollow tube. The S-shaped gap ensures that the puncture tube with a metal guide needle will not fall out of the hollow tube during the puncture process. At the same time, it ensures that after the puncture is completed and the metal guide needle is removed, the elastic silicone puncture drainage tube is pulled out laterally from the S-shaped gap to achieve the separation of the puncture drainage tube and the orienter; The blades A, B and C are perpendicular to each other and are in the shape of right-angle trapezoids. The blades A, B and C are fixedly connected on three different sides of the hollow tube H respectively. The corresponding blades A and B on the left and right sides are on the same plane, and this plane passes through the axis of the hollow tube. They are fixedly connected to the two sides of the hollow tube H in the same direction. Another blade C is fixedly connected to the opposite side of the S-shaped gap in the same direction. The plane where the blade C is located is perpendicular to the plane where the blades A and B are located, and the plane where the blade C is located passes through the axis of the hollow tube. The intersection of the two perpendicular planes is at the axis of the hollow tube H. It also includes: an extended blade A', an extended blade B' and an extended blade C', which are used to extend blade A, blade B and blade C respectively to increase the reference surface and improve the puncture accuracy; the distal ends of the extended blade A', extended blade B' and extended blade C' present a trapezoidal tip, contacting the scalp to act as a fixed guide; The extended blade A', extended blade B' and extended blade C' are connected with blade A, blade B and blade C by inserting and connecting.

2. The intracranial hematoma puncture guide device according to claim 1, characterized in that: One end of the extended blade A', extended blade B' and extended blade C' is provided with a gap with a width of 1 mm for connecting with blade A, blade B and blade C respectively, so that the three extended blades A', extended blade B' and extended blade C' can be respectively inserted and connected with blade A, blade B and blade C, extend the corresponding planes, and move on the same plane to adapt to changes in the patient's head shape and surgical space structure.

Images