A guiding device for spinal canal puncture
By designing a spinal canal puncture guidance device, which utilizes a combination of base and support plate and indicator lines, the problem of difficult control of the puncture angle within the spinal canal is solved, improving the accuracy and safety of puncture and reducing the risk of nerve damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD AFFILIATED HOSPITAL OF ZHENGZHOU UNIVERSITY
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-30
AI Technical Summary
The lack of reference points during spinal canal puncture makes it difficult to control the puncture angle, which can easily lead to complications such as nerve damage, especially for novice medical staff.
A spinal canal puncture guidance device was designed, including a base and a support plate. The bottom of the base has adhesive paper for sticking to the patient. The support plate is rotatable and fixed by a latch. The support plate is provided with an indicator line to help locate the puncture angle.
It improves the accuracy and safety of spinal puncture, reduces the risk of nerve damage, and is especially easy for primary healthcare workers to perform.
Smart Images
Figure CN224421103U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to a guiding device for spinal canal puncture. Background Technology
[0002] Spinal puncture is a medical procedure that involves injecting anesthetic or other drugs into the subarachnoid or epidural space of the spinal canal. Spinal puncture blocks the spinal nerve roots, thereby anesthetically numbing the corresponding area innervated by that nerve root. This process is collectively known as spinal anesthesia. Depending on the injection site, anesthesia techniques can be further subdivided into subarachnoid anesthesia (also called spinal or lumbar anesthesia), epidural block, combined spinal-epidural anesthesia, and caudal block anesthesia. The advantages of this method include the patient remaining conscious during surgery, unaffected respiratory function, and faster postoperative recovery. However…
[0003] Spinal anesthesia also carries some risks and complications, such as hypotension, headache, and nausea. Serious but rare complications include local infection, bleeding, and nerve damage. Currently, during spinal puncture...
[0004] Lacking reference points, medical staff rely on their experience to perform spinal canal punctures on patients. Due to differences in experience among staff, the angle of spinal canal puncture can vary greatly, and complications such as nerve damage may even occur. Therefore, junior resident physicians often find it difficult to locate the needle and determine the angle of insertion when performing spinal canal punctures. Each aspect requires multiple practices to master, and puncture complications are not uncommon at this stage. Utility Model Content
[0005] This invention addresses the technical problem of inconvenience for medical personnel during spinal puncture surgery in existing technologies by providing a guiding device for spinal puncture. The device includes a base with adhesive backing at its bottom. During use, the adhesive backing is peeled off, and the base is attached to the patient. A support plate, shaped like an isosceles triangle, is located above the base. The base is cylindrical, with its diameter equal to the height of the support plate. Both the base and the support plate are made of medical-grade soft PVC material. Two symmetrically arranged support blocks are fixed to the top of the base. The lower end of the support plate is rotatably mounted on the support blocks via a pivot. An L-shaped baffle is fixed to one side of the support plate, with a claw at its bottom. A corresponding slot is provided at the top of the base. During use, the support plate is rotated until it is perpendicular to the base. At this point, the claw engages in the slot, keeping the support plate perpendicular to the base.
[0006] Preferably, vertically arranged indicator lines are provided in the middle of both sides of the support plate.
[0007] Preferably, both the base and the support plate are made of transparent material.
[0008] Preferably, the adhesive backing paper has protrusions that facilitate peeling off the adhesive backing paper.
[0009] The above-mentioned approach has the following advantages:
[0010] The support plate and base are designed so that the support plate can be rotated before use, allowing it to be stacked on top of the base, saving space and facilitating storage. The adhesive backing on the bottom of the base allows for easy attachment of the base to the patient, preventing movement and facilitating positioning for spinal canal punctures by medical staff. The claws and slots allow the claws to engage with the slots when the support plate is rotated to be perpendicular to the base, providing a lifting and fixing function. The indicator lines serve as a guide. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0013] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the left-side structure of this utility model;
[0015] Figure 5 This is a schematic diagram of the folded structure of this utility model;
[0016] Figure 6 for Figure 5 Enlarged view of part A.
[0017] Reference numerals: 1. Base; 2. Adhesive paper; 3. Support plate; 4. Support block; 11. Slot; 21. Protrusion; 31. Indicator line; 32. Baffle; 33. Claw; 41. Rotating shaft. Detailed Implementation
[0018] like Figure 1-6As shown, a guiding device for spinal puncture includes a base 1 with adhesive backing 2 at its bottom. In use, the adhesive backing 2 is peeled off, and the base is attached to the patient. A support plate 3 is positioned above the base 1. The support plate 3 is an isosceles triangle, while the base 1 is cylindrical, with its diameter equal to the height of the support plate 3. Both the base 1 and the support plate 3 are made of medical-grade soft PVC material. Two symmetrically arranged support blocks 4 are fixed to the top of the base 1. The lower end of the support plate 3 is rotatably mounted on the support blocks 4 via a pivot 41. An L-shaped baffle 32 is fixed to one side of the support plate 3, with a claw 33 at its bottom. A corresponding slot 11 is provided at the top of the base 1. In use, the support plate 3 is rotated so that it is perpendicular to the base 1. At this time, the claw 33 engages in the slot 11, keeping the support plate 3 perpendicular to the base 1.
[0019] Preferably, the support plate 3 has vertically arranged indicator lines 31 in the middle of both sides.
[0020] Preferably, both the base 1 and the support plate 3 are made of transparent material.
[0021] Preferably, the adhesive backing paper 2 is provided with protrusions 21 that facilitate peeling off the adhesive backing paper 2.
[0022] Usage process:
[0023] In use, the device is first taken out, and then the support plate 3 is rotated until it is perpendicular to the base 1. The claws 33 on the baffle 32 then engage with the slots 11 on the base 1, ensuring that the baffle remains perpendicular to the base 1. Then, medical personnel peel off the adhesive backing paper 2 through the protrusion 21 and attach the bottom to the patient. Depending on the practical needs, the plane of the support plate 3 can be parallel or perpendicular to the line connecting the spinous processes of the patient's spine. When parallel, it guides the puncture needle to be parallel to the line connecting the apex of the support plate 3 to the dot of the base 1. When perpendicular, it can quantify the deviation angle of the puncture needle. When the deviation angle exceeds the threshold, the angle is adjusted in time to avoid nerve stimulation or damage.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A guiding device for intravertebral puncture, comprising a base, a back gum paper being arranged at the bottom end of the base, characterized in that: The base has a support plate on top, which is an isosceles triangle. Two symmetrically arranged support blocks are fixed at the top of the base. The lower end of the support plate is rotatably mounted on the support blocks via a pivot. An L-shaped baffle is fixed on one side of the support plate. The bottom of the baffle has a claw. The top of the base has a slot that corresponds to the claw.
2. The device of claim 1, wherein: The base is cylindrical, and the diameter of the base is equal to the height of the support plate.
3. The device of claim 1, wherein: Vertical indicator lines are provided in the middle of both sides of the support plate.
4. The device of claim 3, wherein: Both the base and the support plate are made of medical-grade soft PVC material.
5. The device of claim 1, wherein: Both the base and the support plate are made of transparent material.
6. The device of claim 1, wherein: The adhesive backing paper has raised bumps that make it easy to peel off.