A positioning auxiliary device for minimally invasive puncture and drainage operation of hypertensive cerebral hemorrhage

Abstract

The utility model relates to a kind of high blood pressure cerebral hemorrhage minimally invasive puncture drainage operation positioning auxiliary device, including base and sliding block, the base is 180 ° fan ring plate, its surface is equipped with sliding slot, and its both ends are equipped with positioning bolt respectively;The sliding slot is circular-arc groove, and with the base concentric, its central angle is greater than 120 °;The positioning bolt is set along the radial direction of the base, can be tightly in the left and right temple of patient's head;The sliding block is fan ring plate, its shape and size are adapted to the sliding slot, and be placed in the sliding slot movably, and can move along concentric circle of the sliding slot;Still including limiting structure, install on the sliding block, with the linear type puncture channel of the center of base pointing to straight line type.This utility model is by hand operation and is connected on patient's head with base, then by moving sliding block and will puncture channel aim at skull hole, it can be realized puncture positioning, improve the efficiency and accuracy of positioning operation, create favorable conditions for improving operation quality.

Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to a positioning auxiliary device for minimally invasive surgery for hypertensive intracerebral hemorrhage, specifically a positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage. Background Technology

[0002] Hypertensive intracerebral hemorrhage primarily involves intracerebral hematomas in the basal ganglia and thalamus, which can be treated with minimally invasive drainage surgery. Currently, most of these surgeries are performed manually based on experience and imaging data. Only a few large-scale tertiary hospitals possess the stereotactic equipment from functional neurosurgery for targeted puncture.

[0003] However, manual puncture and drainage surgery for hypertensive intracerebral hemorrhage has a low success rate and accuracy, significantly impacting surgical quality and progress. While surgery supported by stereotactic positioning equipment offers higher positioning accuracy, the procedure is complex. It requires first installing a positioning frame on the head, then performing another thin-slice imaging scan, followed by computer data calculation and installation of positioning rulers before the puncture can be performed. This not only increases equipment purchase costs but also tends to prolong surgical time and increase costs, making it difficult to meet market demand.

[0004] Therefore, improvements are urgently needed to better meet the needs of surgical treatment. Utility Model Content

[0005] The purpose of this invention is to address the problems encountered in minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage by providing a positioning auxiliary device for such surgery. This device allows for quick and easy positioning through manual operation, greatly improving operational efficiency and accuracy, and creating favorable conditions for enhancing the quality of surgery in manual operation mode.

[0006] The technical solution of this utility model is:

[0007] A positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage includes a base and a slider. The base is a 180° fan-shaped annular plate with a groove on its surface and positioning bolts at both ends. The groove is an arc-shaped groove concentric with the base, with a central angle greater than 120°. The positioning bolts are arranged radially along the base and can be pressed against the left and right temporal regions of the patient's head.

[0008] The slider is a fan-shaped annular plate whose shape and size are adapted to the groove. It is movably placed in the groove and can move concentrically along the groove.

[0009] It also includes a limiting structure, mounted on the slider, having a straight puncture channel pointing towards the center of the base.

[0010] Furthermore, the base is provided with scale lines arranged along its circumference; the scale at the center line of the base is 0°, and the scales at both ends are 90°.

[0011] Furthermore, the centerline of the groove coincides with the centerline of the base.

[0012] Furthermore, the width and thickness of the slider are adapted to the width and depth of the groove, respectively, and the radius of its central circle is the same as the radius of the central circle of the groove, with a central angle of 120°.

[0013] Furthermore, the limiting structure includes limiting blocks; there are two limiting blocks, both of which are fan-shaped short plates with a width equivalent to the width of the base; the limiting blocks are disposed on the surface of the slider, spaced apart and concentrically arranged to form the puncture channel; the width of the puncture channel is adapted to the outer diameter of the puncture drainage tube.

[0014] Furthermore, the puncture channel is located at the center of the slider.

[0015] Furthermore, an indicator line is provided in the center of the puncture channel; the indicator line is arranged radially along the slider.

[0016] Furthermore, a screw hole is provided between the outer edge of the base and the slide groove, which is radially arranged on the base; a fixing bolt is provided in the screw hole, which can tighten the slider.

[0017] Furthermore, the screw holes are in two sets, symmetrically arranged around the centerline of the base, with an included angle of 90° between them.

[0018] The beneficial effects of this utility model are:

[0019] This invention features a reasonable design, simple structure, and convenient use. The base can be manually attached to the patient's skull, and the puncture channel can be aligned with the skull opening by moving the slider, thus achieving puncture positioning. This significantly improves the efficiency and accuracy of positioning operations, avoids prolonged surgical time and increased surgical costs, fully meets the needs of manual surgery, and creates favorable conditions for improving the surgical quality of hypertensive intracerebral hemorrhage of the basal ganglia and thalamus types. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the slider and limiting structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the points on the patient's head when this utility model is used.

[0023] Figure 4 This is a schematic diagram of the locations inside the patient's skull when this utility model is in use.

[0024] Among them, 1-base; 2-puncture channel; 21-indicator line; 3-limiting block; 4-slider; 5-fixing bolt; 6-slide groove; 7-positioning bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 and 2 As shown.

[0027] A positioning aid device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage includes a base 1 and a slider 4, etc.

[0028] The base 1 is a 180° fan-shaped plate made of aluminum alloy, with a width of about 40mm, a thickness of about 8mm, an inner radius of about 110mm, and an outer radius of about 150mm, which can fully meet the needs of surgery.

[0029] The base 1 has scale lines arranged circumferentially, corresponding to different angles. The scale at the center line of the base 1 is 0°, and the scales at both ends are 90°.

[0030] The base 1 has positioning bolts 7 at both ends. These positioning bolts 7 are arranged radially along the base 1, screwing inwards to abut against the left and right temporal regions of the patient's head. Each positioning bolt 7 corresponds to a 90° graduation, ensuring the line connecting the two positioning bolts coincides with the diameter of the base. Preferably, the positioning bolt 7 is approximately 80mm long and 5mm in diameter, adequately meeting usage requirements.

[0031] The surface of the base 1 is provided with a groove 6. The groove 6 is an arc-shaped groove with a width of approximately 2 mm and a depth of approximately 5 mm. The groove 6 is concentric with the base 1, and its central angle is greater than 120°. Moreover, the center line of the groove 6 coincides with the center line of the base 1, which meets the usage requirements.

[0032] The slider 4 is a fan-shaped annular plate made of aluminum alloy. Its width and thickness are adapted to the width and depth of the groove 6, respectively. The radius of its central circle is the same as the radius of the central circle of the groove 6, and its central angle is about 120°, so that the slider 4 can be smoothly placed in the groove 6 and can move concentrically along the groove 6.

[0033] The surface of the slider 4 is provided with a limiting structure to limit the puncture drainage tube. This limiting structure includes two limiting blocks 3, each a short, fan-shaped annular plate made of aluminum alloy, with a width approximately equal to the width of the base 1. These limiting blocks 3 are mounted on the surface of the slider 4, allowing them to protrude from the base when the slider is installed in the groove. Simultaneously, the limiting blocks 3 are spaced apart from each other and concentric with the base, forming a puncture channel 2 between them. The puncture channel 2 has a width of approximately 5 mm and a depth of approximately 3 mm to adequately limit the puncture drainage tube. Preferably, the central angle α between the outer edges of the two limiting blocks 3 is approximately 30°, and the puncture channel 2 is located in the center of the slider 4 for ease of use.

[0034] An indicator line 21 is provided in the center of the puncture channel 2. The indicator line 21 is a thin line, engraved on the slider 4 and arranged radially along the slider 4 so that it can point to the center of the base 1 and clearly and accurately correspond to the puncture point on the patient's head, which is convenient for operation.

[0035] Furthermore, a screw hole is provided between the outer edge of the base 1 and the sliding groove 6, arranged radially along the base 1, and a fixing bolt 5 is provided in the screw hole so that the slider can be tightened by rotating the fixing bolt, preventing the slider from moving accidentally during the puncture operation. Preferably, there are two sets of screw holes, symmetrically arranged about the center line of the base, with an included angle of approximately 90° between them, for ease of use.

[0036] Before use, this invention should be sterilized under high temperature and high pressure. Simultaneously, the head of the patient diagnosed with cerebral hemorrhage should be prepared (shaved), and the target layer G to be punctured should be selected based on the CT images, such as... Figure 3 and 4 As shown. Then, mark the projection points M and N of the target point G on the left and right temporal sides of the skull, and mark the projection line QP of point G parallel to the sagittal plane of the brain midline on the top of the skull. After successful anesthesia, routine disinfection and draping are performed. A puncture point is then routinely selected 25mm lateral to the midline on the hematoma side and 20mm anterior to the coronal suture. The present invention is then fitted onto the patient's skull, with the base spanning the puncture point, and the positioning bolts aligned with points M and N respectively. The length of the positioning bolts is then adjusted so that they are pressed against the skull, and the 0° mark on the base aligns with the QP line. Next, the slider is moved so that the indicator line in the puncture channel aligns with the puncture point. At this point, the center of the base coincides with the target point G, and the puncture depth is the radius of the base. Finally, the fixing bolts are tightened to ensure the slider is stable. Next, a 4.9mm diameter silicone drainage tube with a metal guide is slowly inserted into the puncture channel. When the silicone tube shows 110mm at the inner rim of the base, the target point G has been reached. Then, the guide is removed, the drainage tube is retained and fixed, and the device is removed, indicating a successful puncture.

[0037] This utility model is reasonably designed, has a simple structure, and is easy to use. It can greatly improve the efficiency and accuracy of positioning operations, avoid prolonged operation time and increased operation costs, fully meet the needs of freehand surgery, and create favorable conditions for improving the surgical quality of hypertensive intracerebral hemorrhage of the basal ganglia and thalamus types.

[0038] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A positioning aid device for minimally invasive puncture and drainage surgery in hypertensive intracerebral hemorrhage, comprising a base and a slider, characterized in that, The base is a 180° fan-shaped annular plate with a groove on its surface and positioning bolts at both ends. The groove is an arc-shaped groove concentric with the base, with a central angle greater than 120°. The positioning bolts are arranged radially along the base and can be pressed against the left and right temporal regions of the patient's head. The slider is a fan-shaped annular plate whose shape and size are adapted to the groove. It is movably placed in the groove and can move concentrically along the groove. It also includes a limiting structure, mounted on the slider, having a straight puncture channel pointing towards the center of the base.

2. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 1, characterized in that, The base is provided with scale lines arranged along its circumference; the scale at the center line of the base is 0°, and the scales at both ends are 90°.

3. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 1, characterized in that, The centerline of the groove coincides with the centerline of the base.

4. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 1, characterized in that, The width and thickness of the slider are adapted to the width and depth of the groove, respectively, and the radius of its central circle is the same as the radius of the central circle of the groove, with a central angle of 120°.

5. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 1, characterized in that, The limiting structure includes two limiting blocks, each a short, fan-shaped annular plate with a width equivalent to that of the base. The limiting blocks are disposed on the surface of the slider, spaced apart and concentrically arranged to form the puncture channel. The width of the puncture channel is adapted to the outer diameter of the puncture drainage tube.

6. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 5, characterized in that, The puncture channel is located in the center of the slider.

7. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 5, characterized in that, An indicator line is provided in the center of the puncture channel; the indicator line is arranged radially along the slider.

8. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 1, characterized in that, A screw hole is provided between the outer edge of the base and the slide groove, which is arranged radially along the base; a fixing bolt is provided in the screw hole, which can tighten the slider.

9. The positioning auxiliary device for minimally invasive puncture and drainage surgery for hypertensive intracerebral hemorrhage according to claim 8, characterized in that, The screw holes are in two sets, symmetrically arranged about the center line of the base, with an included angle of 90° between them.

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