Multifunction central venous catheter maintenance folding chair
Patent Information
- Application Number
- CN202522506199.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-26
AI Technical Summary
这类常规座椅虽能解决患者短期休息与输液的基本需要,但并非专门针对中心静脉导管维护设计,传统的折叠椅缺少用于无菌操作的专用工作面或敷料托盘,护理人员在处理导管时常需额外摆放托盘或使用移动小车,增加操作复杂度与污染风险
[0011] Compared to traditional folding chairs, this chair features a storage box that facilitates CVC maintenance by doctors. The box is used to separately store sterile and clean items to meet medical operating standards. The box also provides sealed storage for both types of items. The surface of the box can also be used for placing other items. It offers good support and, with its height adjustable (to accommodate medical staff of different heights), it always remains above the patient's hands (i.e., the armrests) to ensure that sterile items do not cross with the patient's hands. Finally, a trash can is located at the bottom for easy recycling of medical waste.
Smart Images

Figure CN224853554U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical supplies, specifically, it relates to a multifunctional folding chair for the maintenance of central venous catheters. Background Technology
[0002] Central venous catheters (CVCs) are widely used in medical settings such as long-term intravenous infusion, chemotherapy, hemodialysis, and intravenous nutritional support. Compared to peripheral venous catheters, CVCs require more stringent maintenance, including regular flushing, blood sampling, access management, and dressing changes. These procedures place high demands on patient positioning stability, a sterile environment, and ease of operation for nursing staff.
[0003] Currently, common equipment used in clinical, outpatient, and home care for patients to sit, receive intravenous infusions, or make short stays includes ordinary folding chairs, infusion chairs, reclining chairs, and hospital beds. While these conventional chairs can meet the basic needs of patients for short-term rest and intravenous infusions, they are not specifically designed for central venous catheter maintenance. Traditional folding chairs lack dedicated work surfaces or dressing trays for aseptic procedures, and nursing staff often need to place additional trays or use mobile carts when handling catheters, increasing the complexity of the operation and the risk of contamination. Utility Model Content
[0004] To address the above deficiencies, this utility model provides a multifunctional folding chair for central venous catheter maintenance, comprising a folding chair body, which includes a backrest, a seat cushion, and a leg rest that are movably connected. Hand rests are installed on both the left and right sides of the folding chair body. A positioning frame is fixed to the backrest by bolts, and a bracket is hinged to the positioning frame via a fixing rod. Storage boxes for storing sterile and clean items are fixed on the bracket. A steering shaft is installed at the bottom of the seat cushion, and a tray for placing a trash can is hinged to the bottom end of the steering shaft via a pin.
[0005] Furthermore, the left and right sides of the positioning frame are integrally formed with several sets of fixing pages, and the end of the positioning frame away from the seat cushion is provided with several limiting slots. The fixing rod is limited by inserting the integrally formed plug into the limiting slot.
[0006] Furthermore, the limiting slot is either in the shape of a line or a cross.
[0007] Furthermore, the bracket and the fixed rod are hinged together by a pin, and a limiting plate for preventing the bracket from rotating is welded to the bottom end of the fixed rod at the hinge.
[0008] Furthermore, the horizontal position of the bottommost limiting slot is higher than the horizontal position of the hand rest.
[0009] Furthermore, the upper surface of the tray is provided with a groove, and a matching slider is installed inside the groove. The slider is inserted into a slot opened at the center of the bottom of the trash can.
[0010] Compared with the prior art, the present invention has the following advantages:
[0011] Compared to traditional folding chairs, this chair features a storage box that facilitates CVC maintenance by doctors. The box is used to separately store sterile and clean items to meet medical operating standards. The box also provides sealed storage for both types of items. The surface of the box can also be used for placing other items. It offers good support and, with its height adjustable (to accommodate medical staff of different heights), it always remains above the patient's hands (i.e., the armrests) to ensure that sterile items do not cross with the patient's hands. Finally, a trash can is located at the bottom for easy recycling of medical waste. Attached Figure Description
[0012] Figure 1 This is a perspective view of the present invention.
[0013] Figure 2 This is a schematic diagram of the connection between the steering shaft and the tray in this utility model.
[0014] Figure 3 This is a schematic diagram showing the connection between the positioning frame, fixing rod, and bracket of this utility model.
[0015] In the diagram: 1. Backrest; 2. Hand rest; 3. Leg rest; 41. Positioning frame; 42. Fixing plate; 43. Limiting slot; 44. Fixing rod; 45. Limiting plate; 46. Bracket; 5. Trash can; 61. Steering shaft; 62. Tray; 63. Slide; 64. Slider; 7. Storage box. Detailed Implementation
[0016] To facilitate understanding of this utility model, the device of this utility model will be described more fully below with reference to the accompanying drawings. Embodiments of the device are shown in the drawings. However, this device can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Example
[0019] like Figures 1 to 3 As shown, this embodiment provides a multifunctional central venous catheter maintenance folding chair, including a folding chair body. The folding chair body includes a backrest 1, a seat cushion, and a leg rest 3 that are movably connected. It should be noted that the folding chair body has the same hinge mechanism and folding function as a traditional folding chair, that is, the backrest 1 and the seat cushion are movably connected by a pin. When needed, it is unfolded for use, and otherwise folded for storage. This will not be elaborated here.
[0020] The folding chair body has armrests 2 installed on both the left and right sides. The backrest 1 is fixed with a positioning frame 41 by bolts. The positioning frame 41 is hinged to a bracket 46 by a fixing rod 44. The bracket 46 is fixed with storage boxes 7 for storing sterile and clean items respectively. Specifically, the left and right sides of the positioning frame 41 are integrally formed with several sets of fixing pages 42 (fixed to the screw holes on the back of the backrest 1 by bolts). The end of the positioning frame 41 away from the seat cushion has several straight or cross-shaped limiting slots 43. The horizontal position of the bottom limiting slot 43 is higher than the horizontal position of the armrest 2. Firstly, the cross or straight shape increases the contact area compared to the traditional cylindrical shape, even when facing the object. The pressure generated can also provide a good fixation effect, and the horizontal position setting can effectively prevent the risk of the patient's hand accidentally sliding and coming into contact with sterile items; the fixing rod 44 is fixed by inserting an integrally formed plug into the limiting slot 43, and the bracket 46 and the fixing rod 44 are hinged by a damping pin. The bottom end of the fixing rod 44 is welded with a limiting plate 45 to prevent the bracket 46 from rotating, which limits the rotation angle of the bracket 46 and ensures that the storage box on top is in a horizontal state. By setting the limiting slot 43 at different positions, the corresponding height can be selected according to the height and operation needs of different medical staff, which has good adaptability.
[0021] A steering shaft 61 is installed at the bottom of the seat. The bottom end of the steering shaft 61 is hinged to a tray 62 for placing the trash can 5 via a pin. A groove 63 is provided on the upper surface of the tray 62. A matching slider 64 is installed inside the groove 63. The slider 64 is inserted into a slot opened at the center of the bottom of the trash can. Alternatively, the slider 64 can be made of magnetic material and be attracted and fixed to the magnet embedded in the bottom of the trash can.
[0022] This folding chair can be used for various maintenance tasks, including those involving PICC, infusion ports, CVC, and femoral veins.
[0023] It should be noted that the structure described in this utility model can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this utility model.
Claims
1. A multifunctional folding chair for central venous catheter maintenance, comprising a folding chair body, characterized in that: The folding chair body includes a backrest, a seat cushion, and a leg rest that are movably connected. Hand rests are installed on both the left and right sides of the folding chair body. The backrest is fixed with a positioning frame by bolts. The positioning frame is hinged to a bracket that can rotate to a horizontal position by a fixing rod. Storage boxes for storing sterile items and cleaning items are fixed on the bracket. A steering shaft is installed at the bottom of the seat cushion. The bottom end of the steering shaft is hinged to a tray for placing a trash can by a pin.
2. The multifunctional central venous catheter maintenance folding chair as described in claim 1, characterized in that: The positioning frame has several sets of fixing plates integrally formed on both the left and right sides for bolt fixing. The end of the positioning frame away from the seat cushion has several limiting slots. The fixing rod is limited by inserting an integrally formed insert into the limiting slot.
3. The multifunctional central venous catheter maintenance folding chair as described in claim 2, characterized in that: The limiting slot is either straight or cross-shaped.
4. The multifunctional central venous catheter maintenance folding chair as described in claim 2, characterized in that: The bracket and the fixed rod are hinged together by a pin, and a limiting plate is welded to the bottom end of the fixed rod at the hinge to prevent the bracket from rotating.
5. The multifunctional central venous catheter maintenance folding chair as described in claim 2, characterized in that: The horizontal position of the bottommost limiting slot is higher than the horizontal position of the hand rest.
6. The multifunctional central venous catheter maintenance folding chair as described in claim 1, characterized in that: The upper surface of the tray is provided with a groove, and a matching slider is installed inside the groove. The slider is inserted into a slot opened at the center of the bottom of the trash can.