Two-dimensional plane-guided craniocerebral puncture positioning instrument

Abstract

The present invention discloses a two-dimensional plane guided cranial puncture positioning instrument, comprising a first ruler, a second ruler, a mounting plate and a positioning ruler, wherein the first ruler and the second ruler are arranged in parallel and fixedly arranged on the same side of the mounting plate to form an "F"-shaped frame, and the positioning ruler is slidably arranged on the "F"-shaped frame and is parallel to the mounting plate; the first ruler and the second ruler are provided with scale markings, and the positioning ruler and the mounting plate are provided with a positioning screw at one end away from the first ruler, and the positioning ruler is provided with a directional sliding sleeve sleeved on the first ruler and the second ruler, and the directional sliding sleeve is fixed by a fastening screw. The present invention is designed according to the actual clinical application, and has the advantages of being easy to use and highly practical.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a two-dimensional plane guided cranial brain puncture locator. Background Art

[0002] At present, due to the application of advanced medical instruments such as CT and MRI, the clinical diagnosis accuracy and surgical success rate of brain diseases such as cerebral hematoma, intracranial abscess, brain tumors, etc. have been greatly improved. When performing cranial surgery, it is necessary to determine the location of the lesion from the CT film, and then mark the location on the corresponding surface of the brain as the entry point for puncture or the incision for craniotomy.

[0003] However, most of the existing positioning products are conceptual products, and there are no products that can be actually applied in clinical practice, resulting in low practicality. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a two-dimensional plane-guided cranial puncture locator that is highly practical and easy to use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a two-dimensional plane guided cranial puncture positioning instrument, comprising a first ruler, a second ruler, a mounting plate and a positioning ruler, wherein the first ruler and the second ruler are arranged in parallel and fixedly arranged on the same side of the mounting plate to form an "F"-shaped frame, and the positioning ruler is slidably arranged on the "F"-shaped frame and is parallel to the mounting plate; scale markings are arranged on the first ruler and the second ruler, and a positioning screw is respectively arranged at one end of the positioning ruler and the mounting plate away from the first ruler, and the positioning ruler is provided with a directional sliding sleeve which is sleeved on the first ruler and the second ruler, and the directional sliding sleeve is fixed by a fastening screw.

[0007] Preferably, the first ruler and the second ruler are 20 cm long, the mounting plate is 15 cm long, the first ruler is fixed at one end of the mounting plate, and the second ruler is fixed on the mounting plate 5 cm away from the first ruler.

[0008] Preferably, the accuracy of the scale markings is 0.1 cm.

[0009] The beneficial effects of the present invention are: the present invention is designed according to actual clinical application, and has the advantages of being easy to use and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 A schematic diagram of the structure of a two-dimensional plane-guided craniocerebral puncture locator provided in an embodiment of the present invention;

[0012] Figure 2 A schematic diagram of the usage status of the two-dimensional plane-guided cranial puncture locator provided in an embodiment of the present invention.

[0013] Description of reference numerals:

[0014] 1-first scale, 2-second scale, 3-mounting plate, 4-positioning scale, 5-positioning screw, 6-directional sleeve, 7-fastening screw. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1 As shown, a two-dimensional plane-guided cranial puncture positioning instrument comprises a first ruler 1, a second ruler 2, a mounting plate 3 and a positioning ruler 4. The first ruler 1 and the second ruler 2 are arranged in parallel and fixed on the same side of the mounting plate 3 to form an "F"-shaped frame. The positioning ruler 4 is slidably arranged on the "F"-shaped frame and is parallel to the mounting plate 3. The first ruler 1 and the second ruler 2 are 20 cm long, and the mounting plate 3 is 15 cm long. The first ruler 1 is fixedly arranged at one end of the mounting plate 3, and the second ruler 2 is fixedly arranged at the mounting plate 3. The mounting plate 3 is 5 cm away from the first scale 1; the first scale 1 and the second scale 2 are provided with scale markings, and the accuracy of the scale markings is 0.1 cm; the positioning scale 4 and the end of the mounting plate 3 away from the first scale 1 are each provided with a positioning screw 5, and the positioning scale 4 is provided with a directional sleeve 6 sleeved on the first scale 1 and the second scale 2, and the directional sleeve 6 is fixed by a fastening screw 7. After the directional sleeve 6 is moved to the corresponding positions of the first scale 1 and the second scale 2, it can be locked with the fastening screw 7.

[0017] When using, Figure 2 As shown, Figure 2The large circle represents the plane of the largest intracranial hematoma, and the small circle represents the hematoma. This plane can be easily obtained by drawing on the surface of the skull through standard CT scanning. O represents the puncture target point, which is fixed to the skull by positioning screws 5 at points E and F. PO is the intended puncture direction, and O is the target point determined on the CT image. The OF length can be measured on the CT image, and then a parallel line OC of JF is made on JK and on the edge of GH to mark points B and C, then OF=BJ=CG, PO is an arbitrary intended puncture direction, and the intersection D of this direction and JK can be marked on the second ruler 2. Because the target point O is actually virtual, it is necessary to refer to the auxiliary line AB when puncturing in the PO direction (here AC is equal to 1 / 2BD, so point A can be easily marked), and the entire puncture instrument can be flipped over by the Tiny screws 5 at points E and F, so the target point can be punctured from any point on the skull.

[0018] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A two-dimensional plane-guided cranial puncture locator, characterized in that: It includes a first ruler, a second ruler, a mounting plate and a positioning ruler. The first ruler and the second ruler are arranged in parallel and fixed on the same side of the mounting plate to form an "F"-shaped frame. The positioning ruler is slidably arranged on the "F"-shaped frame and is parallel to the mounting plate. The first ruler and the second ruler are provided with scale markings. The positioning ruler and the mounting plate are each provided with a positioning screw at one end away from the first ruler. The positioning ruler is provided with a directional sliding sleeve which is sleeved on the first ruler and the second ruler, and the directional sliding sleeve is fixed by a fastening screw.

2. The two-dimensional plane-guided craniocerebral puncture positioning instrument as claimed in claim 1, characterized in that: The first ruler and the second ruler are 20 cm long, the mounting plate is 15 cm long, the first ruler is fixed at one end of the mounting plate, and the second ruler is fixed on the mounting plate at a distance of 5 cm from the first ruler.

3. The two-dimensional plane-guided craniocerebral puncture locator as claimed in claim 1, characterized in that: The accuracy of the scale markings is 0.1 cm.

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