Laser-assisted ventricular puncture device

Abstract

The utility model provides a laser-assisted ventricular puncture device. The laser-assisted ventricular puncture device comprises a guide core part and a laser transmitter, the guide core part comprises a guide core and a handheld part arranged at the tail end of the guide core, the handheld part is provided with two fixing frames, the two fixing frames are perpendicular to each other on a projection plane perpendicular to the guide core, and the intersection point is coaxial with the guide core; the number of the laser emitters is two, and the two laser emitters are fixed to the two fixing frames respectively. Accurate and visual alignment can be realized; deviation caused by visual errors is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a laser-assisted ventricle puncture device. BACKGROUND

[0002] Ventricle puncture is a common technique in neurosurgery, which is suitable for various diseases such as brain trauma, hydrocephalus, intraventricular hemorrhage or intracranial infection. During the operation, the doctor needs to locate the puncture point according to the imaging examination results such as CT or MR, and accurately puncture the tip of the drainage tube into the ventricle in the deep part of the brain. For many years, neurosurgeons have summarized the Kocher point, Frazier point and Keen point and other ventricular catheter puncture points according to experience. When operating, the doctor simulates an imaginary plane at the puncture point according to the body surface markers, and the two planes intersect to form an imaginary puncture path. Taking the most commonly used Kocher point as an example, the surgeon needs to imagine the plane formed by the puncture point and the ipsilateral canthus on the sagittal plane, and the plane formed by the puncture point and the ipsilateral tragus on the coronal plane, and adjust the drainage tube to be punctured to coincide with the two planes, and then the drainage tube is inserted 5-6 cm to enter the ventricle. Before the actual operation, the doctor often marks two reference lines (i.e. cross reference lines) on the scalp, and during the operation, the puncture is performed by aiming at the reference lines with the naked eye. Many young doctors often cause actual puncture path deviation due to lack of experience or spatial visual error, resulting in poor placement of the drainage tube or puncture failure, which ultimately affects the operation effect, and repeated puncture also causes unnecessary damage. SUMMARY

[0003] Therefore, the utility model provides a laser-assisted ventricle puncture device suitable for the cross reference line method.

[0004] To achieve the above-mentioned purpose, the technical scheme provided by the utility model is as follows:

[0005] A laser-assisted ventricle puncture device, comprising a guide core part and a laser emitter; the guide core part comprises a guide core and a hand-held part arranged at the end of the guide core, the hand-held part has two fixed frames, the two fixed frames are perpendicular to each other on the projection plane perpendicular to the guide core, and the intersection point is coaxial with the guide core; the laser emitter is provided with two and is fixed on the two fixed frames respectively.

[0006] Further, the fixed frame is a circular fixed ring.

[0007] Further, the position of the laser emitter on the fixed ring can be adjusted.

[0008] Further, the laser emitter is detachably fixed on the fixed ring.

[0009] Further, the laser emitter is slidably mounted on the fixing ring and fixed by the fastening device with adjustable tightness.

[0010] Further, the laser emitter is slidably mounted on the fixing ring and fixed by the damping force between the fixing frame.

[0011] Further, the upper and lower ends of the two fixing rings intersect and form fixed connection.

[0012] Further, the fixing frame is a fixing frame or a fixing rod.

[0013] The technical scheme has the following beneficial effects:

[0014] Before the puncture operation, the doctor aims the tip of the guide core at the center of the preset cross reference line, turns on the laser emitter, and makes the laser emitted by the laser emitter on the two fixing frames fall on the two perpendicular lines of the cross reference line, so that the alignment is completed, intuitive and accurate judgment is realized, and deviation caused by visual error is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 Fig. 2 shows a structural schematic diagram of the guide core part in the embodiment;

[0016] Fig. 2 Fig. 3 shows a structural schematic diagram of the laser emitter in the embodiment;

[0017] Fig. 3 Fig. 4 shows a structural schematic diagram of the laser-assisted ventricle puncture device in the embodiment in a use state. DETAILED DESCRIPTION

[0018] To further illustrate the embodiments, the utility model provides the attached drawings. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be combined with the related description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0019] In the description of the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0020] The utility model will be further described in combination with the drawings and specific embodiments.

[0021] Referring to Figs. 1 to 3 As shown in the drawings, the laser-assisted ventricle puncture device provided by the embodiment comprises a guide core part 10 and a laser emitter 20; the guide core part 10 comprises a guide core 11 and a hand-held part arranged at the end of the guide core 11, that is, the guide core 11 has a tip and an end, and the hand-held part is connected to the end of the guide core 11. The hand-held part has two fixing frames 12, the two fixing frames 12 are perpendicular to each other on a projection plane perpendicular to the guide core 11, and the intersection point is coaxial with the guide core 11, that is, a cross-shaped pattern is obtained on the projection plane. Specifically, the fixing frame 12 is a circular fixing ring 121, and the upper and lower ends of the two fixing rings 121 intersect and are fixedly connected. The laser emitter 20 is fixed on the two fixing frames 12, that is, the number of the laser emitters 20 is two, and each is fixed on the two fixing rings 121.

[0022] Before puncture, the doctor first puts the guide core 11 into the drainage tube 1, the tip of which is aligned with the center of the preset cross reference line I, turns on the laser emitter 20, adjusts the guide core part 10, so that the laser emitted by the laser emitter 20 on the two fixing frames 12 falls on the two perpendicular lines of the cross reference line I respectively, at this time, the path selection is completed, and the brain ventricle can be reached by penetrating to an appropriate depth. The intuitive and accurate judgment is realized, and deviation caused by visual error is avoided. The scheme has the characteristics of simple structure and easy operation. It can meet the needs of emergency surgery and is suitable for various ventricle puncture points commonly used at present.

[0023] Specifically, due to the different sizes of the heads of each patient, the size of the preset cross reference line I is different, in order to ensure that it can be well applied to patients with different sizes of heads, in the embodiment, the two fixing frames 12 are both circular fixing rings 121; the position of the laser emitter 20 on the fixing ring 121 can be adjusted, such as in the embodiment, the laser emitter 20 can slide along the annular track of the fixing ring 121, in this way, when the laser emitter 20 is at different track positions of the fixing ring 121, the orientation of the laser emitter 20 changes, it can be understood that the laser a emitted by the laser emitter 20 is tangent to the circular track of the fixing ring 121, when the laser emitter 20 is set at the outermost position of the fixing ring 121, the laser a emitted by the laser emitter 20 is vertically downward, when the laser emitter 20 is set at the upper half ring position of the fixing ring 121, the laser a emitted by the laser emitter 20 is outwardly inclined (i.e. away from the center point of the cross reference line I), when the laser emitter 20 is set at the lower half ring position of the fixing ring 121, the laser a emitted by the laser emitter 20 is inwardly inclined (i.e. close to the center point of the cross reference line I). In this way, when used for patients with smaller heads, due to the limited range of the cross reference line I, the laser emitter 20 can be set at the lower half ring position of the fixing ring 121, so that the laser a emitted by the laser emitter 20 is inwardly inclined, so that it can irradiate the scalp of the patient, ensuring the operation.

[0024] Specifically, the installation mode that the laser emitter 20 can slide along the annular track of the fixing ring 121 can be fixed by adjustable tight fastening devices, such as by the cooperation of a screw bolt, when it is necessary to slide and adjust the position, the screw bolt is loosened, so that the laser emitter 20 can slide on the annular track of the fixing ring, when the position adjustment is completed, the screw bolt is tightened again; or it can be fixed by the damping force between the fixing frame 12 (i.e. the fixing ring 121), that is, under the action of no external force, the laser emitter 20 and the fixing ring 121 are fixed by static friction force; when a certain external force is applied, the laser emitter 20 overcomes the static friction force and slides on the fixing ring 121, when the external force is removed, the laser emitter 20 is fixed again by the static friction force. Alternatively, the way to adjust the position of the laser emitter 20 on the fixing ring 121 can also be to disassemble the laser emitter 20 first, and then install it at the corresponding position of the fixing ring 121; as long as the position of the laser emitter 20 on the fixing ring 121 can be adjusted.

[0025] Specifically, the upper and lower ends of the two fixing rings 121 intersect and are fixedly connected, realizing stable connection.

[0026] The structure of the fixing frame 12 and the matching structure with the laser emitter 20 are disclosed above, which is one of the preferred embodiments in the application. Of course, in other embodiments, the fixing frame 12 can also be a frame structure (such as a four-side frame) or a fixing rod (such as a straight rod), which is not limited to this. Specifically, when the fixing rod is adopted, two fixing rods are also arranged in a cross shape, and the laser emitter 20 is arranged to slide transversely along the fixing rod.

[0027] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, which are all within the protection scope of the utility model.

Claims

1. A laser-assisted ventricular puncture device, characterized by: The laser emitter is arranged on the fixed frame.

2. The laser-assisted ventricular puncture device of claim 1, wherein: The fixed frame is a circular fixed ring.

3. The laser-assisted ventricular puncture device of claim 2, wherein: The laser emitter is adjustable on the fixed ring.

4. The laser-assisted ventricular puncture device of claim 3, wherein: The laser emitter is detachably fixed on the fixed ring.

5. The laser-assisted ventricular puncture device of claim 3, wherein: The laser emitter is slidably mounted on the fixed ring and fixed by a fastening device with adjustable tightness.

6. The laser-assisted ventricular puncture device of claim 3, wherein: The laser emitter is slidably mounted on the fixed ring and fixed by a damping force between the laser emitter and the fixed frame.

7. The laser-assisted ventricular puncture device of claim 3, wherein: The upper and lower ends of the two fixed rings intersect and are fixedly connected.

8. The laser-assisted brain ventricle puncture device according to claim 1, characterized in that: The fixed frame is a fixed frame or a fixed rod.

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