Wearable teaching mold for simulating infusion port maintenance
By designing a wearable teaching mold, the problem of existing simulated infusion port training devices being unable to realistically simulate changes in body position and puncture sensations has been solved. It provides a highly realistic training experience, adapts to different patients' subcutaneous fat thicknesses, enhances the realism and convenience of training, and improves operational skills.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV SCHOOL OF MEDICINE
- Filing Date
- 2024-12-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing simulated port-a-cath training devices cannot simulate real body position changes, do not provide a realistic sense of puncture breakthrough, cannot reflect the operational requirements brought about by different thicknesses of subcutaneous fat, and cannot intuitively show the water flow direction during port-a-cath flushing, resulting in a large gap between training and actual operation.
A wearable training mold was designed, including a wearable training garment, an infusion port assembly, and a puncture site skin module. The wearable training garment has a accommodating space and an operating port. The infusion port assembly is connected to the catheter assembly. The puncture site skin module is replaceable to simulate subcutaneous fat of different thicknesses. A sealing element prevents liquid leakage and provides a highly realistic training experience.
It achieves highly realistic port-of-care maintenance training, is lightweight and convenient, can simulate the physical conditions of different patients, improves the realism and convenience of training, and enhances the operational skills and accuracy of medical staff.
Smart Images
Figure CN224190577U_ABST
Abstract
Description
A wearable teaching mold for simulating port maintenance Technical Field
[0001] This utility model belongs to the field of medical teaching aids technology, and in particular relates to a wearable teaching device for simulating port maintenance. Background Technology
[0002] An implantable venous access port (PORT) is a closed infusion device that is completely implanted in the human body. It is mainly used to provide venous access for patients who require long-term or frequent infusion therapy. It is suitable for the infusion of high-concentration chemotherapy drugs, total parenteral nutrition, and blood products. When using an PORT, the following situations can easily occur due to improper operation: During the needle insertion process, tilting or shaking the needle may cause the needle tip to pierce the side wall of the PORT, resulting in damage to the PORT; Sometimes, flushing is required when using an PORT. During flushing, the flushing pressure needs to be adjusted. However, if the flushing pressure is too high, a large amount of saline may rush into the blood vessel, causing subcutaneous swelling.
[0003] Therefore, before using a port-a-cath, medical staff need to be trained using a simulated port-a-cath. However, most existing simulated port-a-caths use a mannequin with the port inside. Existing training devices cannot change body position, lack realistic puncture sensation, and fail to reflect the varying operational requirements arising from different thicknesses of subcutaneous fat in real clinical patients, resulting in a significant difference from actual clinical practice. Furthermore, in terms of teaching, existing models cannot visually demonstrate the water flow direction during port-a-cath flushing. Therefore, this invention proposes a wearable teaching device for the maintenance of simulated port-a-caths. Summary of the Invention
[0004] The technical objective of this invention is to provide a wearable teaching device for simulating port maintenance, in order to solve the problems mentioned in the background art.
[0005] To solve the above problems, the technical solution of this utility model is as follows:
[0006] A wearable teaching mold for simulating port maintenance includes:
[0007] Wearable training garments, port-a-cath components, and puncture site skin modules;
[0008] The wearable training garment has an internal storage space containing an infusion port assembly. It also has an operating port for use with a puncture needle. The operating port is positioned to match the placement of the infusion port assembly and is configured to allow for puncture into the assembly via the operating port to simulate infusion port maintenance.
[0009] The puncture site skin module is movable and covers the operating port. When the teaching device is used for training, the puncture site skin module is removed and configured to expose the operating port for unobstructed puncture. When the teaching device is used for examination, the puncture site skin module is placed and configured to simulate the skin during a real puncture to achieve simulated puncture.
[0010] The wearable training garment includes an artificial skin layer and a base layer;
[0011] The artificial skin layer is connected to the base layer surface by surface, with an accommodating space between them. The artificial skin layer has through holes as operating ports. The side of the base layer that is not connected to the artificial skin layer is the wearing surface and is configured to fit snugly when worn.
[0012] The artificial skin layer is made of soft silicone material.
[0013] Specifically, the infusion port assembly includes an infusion port base and an infusion port;
[0014] The infusion port base is located in a groove in the base layer below the operating port, with the opening of the groove facing the operating port;
[0015] The infusion port is embedded in the infusion port base, and a pipeline connection port is opened on the side bottom of the infusion port; a first through hole is opened on the side of the infusion port base, and the first through hole is correspondingly set with the pipeline connection port; wherein, the infusion port is made of light-transmitting material.
[0016] Preferably, it also includes a conduit assembly and a storage bag for use with the infusion port assembly;
[0017] The catheter assembly is connected at both ends to a tubing connection port and a reservoir bag, respectively. The reservoir bag is located outside the wearable training garment and contains simulated blood, configured to simulate blood backflow during simulated maintenance of the infusion port.
[0018] The base layer has a through hole as a second through hole. The conduit assembly passes through the pipeline connection port, the first through hole and the second through hole in sequence to realize the liquid connection between the infusion port and the storage bag.
[0019] The infusion port is equipped with a sealing element at the top, which is configured to isolate the infusion port from the containment space to prevent liquid leakage.
[0020] Specifically, the surface of the sealing component is provided with a pre-placed opening for use with a puncture needle. The pre-placed opening includes a protective layer and a puncture part located in the center of the protective layer. The puncture part works with the puncture needle to perform puncture. The protective layer is made of resin material, and the puncture part is made of TPE material.
[0021] The puncture site skin module is a replaceable component. Different thicknesses and sizes of puncture site skin modules can be selected to simulate the maintenance of infusion ports installed under different subcutaneous fat thicknesses in people of different weights.
[0022] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:
[0023] This invention provides a highly realistic port-of-care maintenance training experience by simulating the components and operation of a real port-of-care device. Compared with existing technologies that use wearable training garments instead of human models, it is lighter and more convenient, requiring only the subject to wear the garment.
[0024] The puncture site skin module can cover the area above the operating port. During training, the puncture site skin module is removed to expose the operating port for unobstructed puncture. During examination, the puncture site skin module is placed to simulate the skin during a real puncture to achieve simulated puncture. In addition, the puncture site skin module simulates the skin during a real puncture and can be replaced with puncture site skin modules of different thicknesses and sizes to adapt to and simulate the physical conditions of different patients.
[0025] The sealing design at the top of the infusion port effectively isolates the infusion port from the containment space, preventing liquid leakage and intrusion, and ensuring the overall liquid-blocking performance of the device.
[0026] The pre-placed opening includes a protective layer and a puncture site. The protective layer is made of resin material, and the puncture site is made of TPE material, providing a good puncture experience and durability. Attached Figure Description
[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.
[0028] Figure 1 is a structural schematic diagram of a wearable teaching mold for simulating port maintenance according to this utility model;
[0029] Figure 2 is a schematic diagram of the disassembled structure of the puncture needle and teaching device of this utility model;
[0030] Figure 3 is a schematic diagram of the surface structure of the puncture needle and teaching device of this utility model during puncture;
[0031] Figure 4 is a side sectional view of the integration of the puncture needle and teaching device of this utility model.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1: Wearable training garment; 2: Infusion port assembly; 21: Infusion port; 22: Infusion port base; 23: Catheter assembly; 3: Skin module for puncture site; 4: Puncture needle; 5: Sealing component. Detailed Implementation
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0035] To keep the drawings concise, each figure only schematically shows the parts related to this utility model, and they do not represent the actual structure of the product. Furthermore, to make the drawings concise and easy to understand, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0036] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a wearable teaching device for simulating the maintenance of a port-a-cath 21 according to this utility model. The advantages and features of this utility model will become clearer from the following description and claims.
[0037] Referring to Figures 1 to 4, this embodiment provides a wearable teaching device for simulating port maintenance, which includes: a wearable training garment 1, a port component 2, and a skin module for the puncture site 3.
[0038] The wearable training garment 1 consists of an artificial skin layer and a base layer, connected by stitching or adhesive. The artificial skin layer is made of highly realistic silicone material, simulating the appearance and feel of real skin. The base layer is made of a more durable material, such as polyester fiber or nylon, to provide sufficient support and durability. The side of the base layer not connected to the artificial skin layer is the wearing surface, designed for a close fit to ensure the wearer's comfort during operation. The periphery of the artificial skin layer is connected to the periphery of the base layer, ensuring a tight fit and leaving a space between them for accommodating the infusion port assembly 2. A through-hole is formed in the artificial skin layer as an access port. This access port is positioned to match the infusion port assembly 2, ensuring that the puncture needle 4 can accurately puncture into the infusion port assembly 2 to achieve simulated maintenance of the infusion port.
[0039] Next, as shown in Figures 1 and 2, the infusion port assembly 2 includes an infusion port base 22 and an infusion port 21 (i.e., the body). The infusion port base 22 is disposed within a groove in the base layer below the operating port, with the opening of the groove facing the operating port. The infusion port 21 is embedded in the infusion port base 22, and the top of the infusion port 21 can be nested within the operating port. A tubing connection port is provided on the side bottom of the infusion port 21. The material of the infusion port 21 should be medical-grade plastic, stainless steel, or aluminum alloy that is resistant to high temperatures and sterilization. Preferably, transparent plastic material is used for easy observation. Correspondingly, a first through hole is provided on the side of the infusion port base 22, and the first through hole is correspondingly provided with the tubing connection port. Preferably, this embodiment also includes a catheter assembly 23 and a reservoir bag. The two ends of the catheter assembly 23 are respectively connected to the tubing connection port of the infusion port 21 and the reservoir bag. The catheter assembly 23 should have a certain degree of flexibility to facilitate operation and simulate the process of blood flow in real blood. Medical-grade silicone tubing can be used to ensure a tight seal and durability of the connection. The reservoir bag, located on the outside of the wearable training garment 1, is a replaceable component and stores simulated blood to mimic blood return. The reservoir bag should be made of transparent, non-toxic medical-grade plastic to allow observation of the internal liquid flow. Preferably, the base layer has a through-hole as a second through-hole, allowing the catheter assembly 23 to sequentially pass through the tubing connection port, the first through-hole, and the second through-hole to achieve fluid connection between the infusion port 21 and the reservoir bag.
[0040] It is worth mentioning that, referring to Figures 2 and 3, in this embodiment, the top of the infusion port 21 is provided with a sealing member 5. The top sealing member 5 is designed to be removable for easy cleaning and maintenance. The surface of the sealing member 5 has a pre-placed opening for use with the puncture needle 4. The purpose of providing the sealing member 5 is to isolate the infusion port 21 from the containing space to prevent liquid leakage. The pre-placed opening includes a protective layer and a puncture part located at the center of the protective layer. The puncture part cooperates with the puncture needle 4 to perform puncture. The protective layer is made of resin material, and the puncture part is made of TPE material, providing a good puncture experience and durability.
[0041] Referring to Figures 3 and 4, in this embodiment, the puncture site skin module 3 is movable and covers the operating port, simulating the skin during a real puncture. When performing puncture maintenance training using this embodiment, the puncture site skin module 3 can be removed to expose the operating port, allowing a direct view of the internal structure of the infusion port 21, thus enabling barrier-free puncture training and serving a teaching or training purpose. When performing examinations or simulation training using this embodiment, the puncture site skin module 3 can be placed back on the operating port to simulate the skin during a real puncture, achieving simulated puncture. The puncture site skin module 3 is a replaceable component; puncture site skin modules 3 of different thicknesses and sizes can be selected to simulate the infusion port maintenance under different physical conditions of different patients. The material of the puncture site skin module 3 should be consistent with the artificial skin layer.
[0042] Actual usage process: First, confirm the integrity of this embodiment, such as whether the reservoir bag contains simulated blood and whether it is tightly connected. Wear the wearable training garment 1 on the simulated object. Replace the puncture site skin module 3 with different thicknesses and sizes as needed to simulate different patient physical conditions. When using this embodiment for training or teaching, remove the puncture site skin module 3 to expose the operating port. The puncture needle 4 can directly pass through the operating port into the infusion port 21 for unobstructed puncture. Since the inside of the infusion port 21 is visible, it is convenient for trainees to understand the impact of different flushing factors on the maintenance cleaning effect of the infusion port. When using this embodiment for simulation training or examination, place the puncture site skin module 3 to simulate the skin during a real puncture, serving as a training or assessment tool. Then, the operator punctures the infusion port component 2 through the operating port to simulate the maintenance process of the infusion port 21. Through the above design and manufacturing, this wearable teaching device can significantly improve the realism and convenience of highly simulated infusion port 21 maintenance training, helping medical personnel improve their skills and accuracy in actual operation.
[0043] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the above embodiments. Even if various changes are made to this utility model, if these changes fall within the scope of the claims of this utility model and their equivalents, they shall still fall within the protection scope of this utility model.
Claims
1. A wearable teaching mold for simulating port-of-care maintenance, characterized in that... The device includes: a wearable training garment, an infusion port assembly, and a puncture site skin module; the wearable training garment has an internal accommodating space, in which the infusion port assembly is placed; the wearable training garment has an operating port for use with a puncture needle, the operating port being matched with the placement position of the infusion port assembly and configured to perform simulated maintenance of the infusion port by puncturing the infusion port assembly through the operating port; the puncture site skin module is movable and covers the operating port; when the teaching model is used for training, the puncture site skin module is removed, and the operating port is exposed for barrier-free puncture teaching; when the teaching model is used for examination, the puncture site skin module is placed, and the skin is configured to simulate the skin during a real puncture for simulated puncture.
2. The wearable teaching mold for simulating port maintenance as described in claim 1, characterized in that... The wearable training garment includes an artificial skin layer and a base layer; the artificial skin layer is connected to the base layer surface by surface, and there is an accommodating space between them; the artificial skin layer has a through hole as the operating port; the side of the base layer not connected to the artificial skin layer is the wearing surface, which is configured to fit snugly; wherein, the artificial skin layer is made of soft silicone material.
3. The wearable teaching mold for simulating port maintenance according to claim 2, characterized in that... The infusion port assembly includes an infusion port base and an infusion port; the infusion port base is located in a groove in the base layer below the operating port, with the opening of the groove facing the operating port; the infusion port is embedded in the infusion port base, and a pipeline connection port is provided on the bottom side of the infusion port; a first through hole is provided on the side of the infusion port base, and the first through hole is correspondingly provided with the pipeline connection port; wherein, the infusion port is made of a light-transmitting material.
4. The wearable teaching mold for simulating port maintenance according to claim 3, characterized in that... It also includes a catheter assembly and a reservoir bag for use with the infusion port assembly; the two ends of the catheter assembly are connected to the pipeline connection port and the reservoir bag respectively; the reservoir bag is located outside the wearable training garment and stores simulated blood inside, configured to simulate blood aspiration during simulated maintenance of the infusion port; the base layer has a through hole as a second through hole, and the catheter assembly passes through the pipeline connection port, the first through hole and the second through hole in sequence to realize the fluid connection between the infusion port and the reservoir bag.
5. The wearable teaching mold for simulating port maintenance according to claim 3, characterized in that... The top of the infusion port is provided with a sealing element, which is configured to isolate the infusion port from the accommodating space to prevent liquid leakage.
6. The wearable teaching mold for simulating port maintenance according to claim 5, characterized in that... The sealing component has a pre-placed opening on its surface for use with a puncture needle. The pre-placed opening includes a protective layer and a puncture part located at the center of the protective layer. The puncture part works with the puncture needle to perform puncture. The protective layer is made of resin material, and the puncture part is made of TPE material.
7. The wearable teaching mold for simulating port maintenance according to claim 1, characterized in that... The puncture site skin module is a replaceable component. Different thicknesses and sizes of the puncture site skin modules can be selected to simulate the maintenance of infusion ports installed under different subcutaneous fat thicknesses in people of different weights.