Positioning paste applied to CT (Computed Tomography) guidance
By designing a positioning patch for CT guidance, using iodine contrast agent development and CT image comparison technology, the expensive problem of neuronavigation system is solved, the accuracy and success rate of the surgery is improved, and the economical and practical Solution.
Patent Information
- Application Number
- CN202420393698.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-01
AI Technical Summary
In the prior art, the neuronavigation system is expensive, which makes many hospitals unable to be equipped, and lacks effective auxiliary means to accurately locate the craniotomy position, resulting in uncertainty in surgery.
A positioning patch applied to CT guidance is designed, including the main layer, the adhesive layer and the protective layer. The main layer is soaked with iodine contrast agent. It is developed through CT scanning and development, combined with three-dimensional reconstruction and comparison of CT images, and the scope of the positioning patch is adjusted to Determine the site of the intended craniotomy.
It improves the success rate of surgery, shortens the operation time, reduces the pain of patients, and provides a better user experience. At the same time, it is easy to promote due to the economical and practicality of the positioning patch.
Smart Images
Figure CN222517005U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical consumables, and in particular to a positioning sticker used under CT guidance. Background Art
[0002] Neurosurgery such as cerebral hemorrhage, brain trauma, brain tumors, etc. requires accurate positioning of the craniotomy before surgery. Accurate surgical positioning can greatly improve the success rate of surgery, shorten the operation time, and relieve the patient's pain. The craniotomy position and shape are variable, and there is a lack of effective auxiliary means to accurately position it before surgery. The choice of craniotomy position is mainly determined by the surgeon based on preoperative CT, which brings uncertainty to the surgery. At present, the intraoperative neuronavigation system is expensive, and most hospitals in backward areas are not equipped with it. Therefore, it is very necessary to provide a positioning sticker for use under CT guidance. Utility Model Content
[0003] The main purpose of the present application is to provide a positioning sticker for use under CT guidance, aiming to solve the problem of expensive neuronavigation systems in the prior art.
[0004] The technical solutions adopted in this application are as follows:
[0005] A positioning patch for use under CT guidance, comprising a main layer, a first adhesive layer, a second adhesive layer, a first protective layer and a second protective layer, wherein the first adhesive layer and the second adhesive layer are symmetrically covered on two main body sides of the main layer, and the first protective layer and the second protective layer are respectively covered on the outer sides of the first adhesive layer and the second adhesive layer, wherein the main layer is a non-woven fabric layer impregnated with an iodine contrast agent.
[0006] Optionally, the first adhesive layer and the second adhesive layer are pressure-sensitive adhesive coatings.
[0007] Optionally, the first protective layer and the second protective layer are PU film layers.
[0008] Optionally, the length and width of the positioning sticker are not less than 15 cm, and the thickness is not more than 0.5 cm.
[0009] Compared with the prior art, the beneficial effects of this application are:
[0010] First: The embodiment of the present application proposes a positioning patch for use under CT guidance. Since a main layer of iodine contrast agent is provided, each layer is developed as a line sample after CT scanning. Through three-dimensional reconstruction or comparison of the position relationship between each layer of lesions in each axial position under CT and the line sample development, the range of the positioning patch is adjusted with reference to determine the planned craniotomy site, thereby greatly improving the success rate of the operation, reducing the operation time, alleviating the pain of the patient during the operation, and providing a better user experience for the patient.
[0011] Second: The positioning sticker used under CT guidance proposed in the embodiment of the present application is simple to operate. It can be cut into any size and shape according to actual needs, and the protective layer on any side can be peeled off. It can be attached to any part of the patient's scalp through the adhesive layer without being affected by the body position. After determining the specific surgical site, the surgical site is outlined along the periphery of the positioning sticker with a marker pen and can be torn off without affecting the surgical operation.
[0012] Third: The positioning sticker used under CT guidance proposed in the embodiment of the present application is economical and practical, cost-effective and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A schematic diagram of the structure of a positioning sticker used under CT guidance provided in an embodiment of the present application;
[0014] Figure 2 An exploded schematic diagram of a positioning sticker used under CT guidance provided in an embodiment of the present application;
[0015] Figure 3 The positioning sticker for use under CT guidance provided in the embodiment of the present application is applied to the horizontal plane development image under CT scanning.
[0016] Description of the reference numerals in the accompanying drawings:
[0017] 100-main layer, 200-first adhesive layer, 300-first protective layer, 400-second adhesive layer, 500-second protective layer. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0019] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0020] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0022] Refer to the attached Figure 1 to Figure 2 The present application embodiment provides a positioning sticker for use under CT guidance, the structure of which includes: a main layer 100, a first adhesive layer 200, a second adhesive layer 400, a first protective layer 300 and a second protective layer 500, Figure 2 For example, the first adhesive layer 200 covers the main layer 100, the first protective layer 300 covers the first adhesive layer 200, the second adhesive layer 400 covers the main layer 100, and the second protective layer 500 covers the second adhesive layer 400. The layers are adhered and fixed to each other to form a whole, and the main surface contours of each layer are basically the same, that is, they have basically the same size on the horizontal plane.
[0023] In this embodiment, the main layer 100 is a non-woven fabric layer impregnated with an iodine contrast agent. Specifically, the main layer 100 is prepared by immersing the non-woven fabric in a liquid containing an iodine contrast agent and drying it. Since the iodine contrast agent is a contrast agent that can be developed under CT scanning, the non-woven fabric is impregnated with the iodine contrast agent so that the main layer 100 is rich in the contrast agent and can achieve the effect of developing under CT.
[0024] Of course, it is not difficult to understand that the adhesive layer and the protective layer are provided on both sides of the main layer 100. Therefore, during use, the adhesive layer and the protective layer can be torn off from any side of the main layer 100 and pasted on the patient's surgical site, which is very convenient.
[0025] In a preferred embodiment, the first adhesive layer 200 and the second adhesive layer 400 are pressure-sensitive adhesive coatings, and the first protective layer 300 and the second protective layer 500 are PU film layers. Pressure-sensitive adhesives are commonly known as self-adhesive adhesives, and are particularly suitable for the field of medical adhesives. PU films have good elasticity, high lightness and good waterproof effect, and are suitable for use as outer protective films.
[0026] In this embodiment, the positioning sticker has a width of not less than 15 cm, a length of not less than 15 cm, and a thickness of not more than 0.5 cm, so that the positioning sticker can be cut into different sizes to meet the requirements of different surgical ranges.
[0027] In summary, the positioning sticker provided in the embodiment of the present application for use under CT guidance has the following specific implementation process:
[0028] The positioning sticker is cut into corresponding sizes according to the requirements of the surgical scope. Before the CT scan, the protective layer on either side is peeled off, and the adhesive layer on the same side is pasted to the intended surgical scope, such as peeling off the first protective layer 300, and then peeling off the first adhesive layer 200, and pasting the first adhesive layer 200 to the intended surgical scope. After the CT scan, based on the relationship between the lesion and the positioning sticker in each axial scan image of the CT, it is indirectly reflected whether the intended surgical position is accurate. Based on the relationship between the lesion and the positioning sticker in each axial scan image of the CT, the positioning sticker is adjusted until it meets the craniotomy position, and finally the surgical position is drawn along the periphery of the positioning sticker with a marker.
[0029] like Figure 3 As shown, based on the positioning sticker used under CT guidance provided by the embodiment of the present application, the horizontal plane development image under CT shows that the positioning sticker is clearly distinguished from human tissue without obvious artifacts. It should be noted that Figure 3 The area indicated by the arrow is the positioning sticker provided in the embodiment of the present application.
[0030] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A positioning sticker used under CT guidance, characterized in that: The invention comprises a main layer (100), a first adhesive layer (200), a second adhesive layer (400), a first protective layer (300) and a second protective layer (500), wherein the first adhesive layer (200) and the second adhesive layer (400) are symmetrically covered on two main side surfaces of the main layer (100), and the first protective layer (300) and the second protective layer (500) are respectively covered on the outer sides of the first adhesive layer (200) and the second adhesive layer (400), wherein the main layer (100) is a non-woven fabric layer impregnated with an iodine contrast agent.
2. The positioning sticker for use under CT guidance according to claim 1, characterized in that: The first adhesive layer (200) and the second adhesive layer (400) are pressure-sensitive adhesive coatings.
3. The positioning sticker for use under CT guidance according to claim 1, characterized in that: The first protective layer (300) and the second protective layer (500) are PU film layers.
4. The positioning sticker for use under CT guidance according to claim 1, characterized in that: The length and width of the positioning sticker are not less than 15 cm, and the thickness is not more than 0.5 cm.