Peripheral vascular access maintenance teaching aid

Abstract

The utility model relates to the technical field of medical instruments, and discloses a peripheral vascular access maintenance teaching aid, which comprises a simulation teaching aid arm and a simulation blood vessel penetrating through the surface of the simulation teaching aid arm, and further comprises an operation hole, a remaining needle part which is arranged on the surface of the simulation teaching aid arm and is communicated with the simulation blood vessel in a penetrating manner is arranged in a groove of the operation hole; and the catheter balloon is sleeved outside the simulation blood vessel, the tail end of the simulation blood vessel is connected with a liquid storage bag, and a rotating shaft is arranged at the joint of the two groups of simulation teaching aid arms. The simulation teaching aid arm is used as a teaching aid carrier, pulse type tube washing and direct injection type tube washing can be carried out on the teaching aid, whether residual sediments in the wall of an indwelling needle tube in the two modes are washed away or not is observed, and the situation that the tube is blocked by blood return can be observed by simulating increase of blood vessel internal pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a peripheral vascular access maintenance teaching aid. Background Art

[0002] Peripheral venous catheters are the main tools for intravenous treatment such as clinical infusion, blood transfusion or blood collection. However, if they are not properly cared for during clinical use, complications such as tube blockage, phlebitis and fluid extravasation may occur. Therefore, it is very important to use correct flushing and sealing tube care to prevent complications.

[0003] VAD catheter maintenance requires the use of pulse flushing technology, and the teaching teachers will repeatedly emphasize the need for pulse flushing. However, nursing students, who are unaware of the role and principle of pulse flushing, often use direct push-type flushing. In addition, they have no clinical experience and no venous catheter maintenance teaching aids for repeated practice. Inappropriate flushing and fixing methods increase the incidence of indwelling needle blockage and phlebitis. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a peripheral vascular access maintenance teaching aid, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: a simulated teaching arm and a simulated blood vessel passing through the surface of the simulated teaching arm,

[0006] Also includes:

[0007] An operating opening is provided on the surface of the simulated teaching aid arm, and a retention needle portion connected to the simulated blood vessel is arranged in the groove of the operating opening;

[0008] The catheter balloon is sleeved outside the simulated blood vessel, the end of the simulated blood vessel is connected with a liquid storage bag, and a rotating shaft is arranged at the connection between the two sets of simulation teaching aid arms.

[0009] Furthermore, one end of the simulated blood vessel away from the liquid storage bag extends outward through the simulation teaching aid arm and is connected to a syringe.

[0010] Furthermore, one end of the indwelling needle portion is connected to the indwelling connecting tube, and one end of the indwelling connecting tube away from the indwelling needle portion is connected to the Y-shaped tube.

[0011] Furthermore, one end of the Y-shaped tube is connected to the injector via an indwelling connecting tube.

[0012] Furthermore, a bottom platform is arranged at the bottom of the arm of the simulation teaching aid.

[0013] Furthermore, an indwelling needle clamp is arranged on the outside of the simulated blood vessel and is located on one side of the catheter balloon close to the proximal end.

[0014] Furthermore, a rubber piece is provided between the two sets of arms of the simulation teaching aids.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The present application utilizes a simulated teaching aid arm as a teaching aid carrier, on which pulse flushing and direct push-in flushing can be performed, and whether the residual sediment in the wall of the indwelling needle tube is flushed clean by the two methods can be observed. The occurrence of blood return and tube blockage can also be observed by simulating an increase in intravascular pressure, and the blood return in the indwelling needle caused by arm movement can be simulated through the structure of rubber parts and rotating shafts. Various experiments can be completed with the teaching aid, which helps medical staff to learn more clearly and improves the convenience and quality of learning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the arm of the simulation teaching aid of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the connection between the indwelling needle tube clamp and the indwelling connecting tube of the utility model.

[0021] In the figure: 1. Simulated teaching arm; 2. Operation opening; 3. Simulated blood vessel; 4. Syringe; 5. Indwelling needle; 6. Indwelling connecting tube; 7. Y-tube; 8. Injector; 9. Catheter balloon; 10. Liquid storage bag; 11. Indwelling needle clamp; 12. Rotating shaft; 13. Rubber part; 14. Bottom platform. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4, including: a simulation teaching aid arm 1 and a simulation blood vessel 3 passing through the surface of the simulation teaching aid arm 1, wherein one end of the simulation blood vessel 3 passes through the end of the simulation teaching aid arm 1, an operation opening 2 is opened on the upper part of the simulation teaching aid arm 1, the other end of the simulation blood vessel 3 passes outward from the operation opening 2 and continues to extend outward, and an indwelling needle part 5 is arranged above the operation opening 2, one group of through tubes of the indwelling needle part 5 is connected with the simulation blood vessel 3, one end of the simulation blood vessel 3 is connected with a syringe 4, and the other end of the simulation blood vessel 3 is connected with a liquid storage bag 10, and a bottom platform 14 is arranged at the bottom of the simulation teaching aid arm 1, and the bottom platform 14 makes the simulation teaching aid arm 1 as a whole placed on the teaching desk stably.

[0024] The simulation teaching aid arm 1 is composed of two parts, wherein the bottoms of the two groups of simulation teaching aid arms 1 are connected by a rotating shaft 12, and a bottom platform 14 is provided at the connection between the two groups of simulation teaching aid arms 1, so that the two groups of simulation teaching aid arms 1 can rotate, and a rubber part 13 is provided between the two groups of simulation teaching aid arms 1 and on one side of the bottom platform 14, and the extension ability of the rubber part 13 is used to provide closure of the opening for the bending of the simulation teaching aid arm 1, and one end of the indwelling needle part 5 is connected to the indwelling connecting tube 6, and the indwelling connecting tube 6 is away from the indwelling needle part 5. One end of the needle placement part 5 is connected to a Y-shaped tube 7, and one end of the Y-shaped tube 7 is connected to the push injector 8 through an indwelling connecting tube 6. Two flushing methods, pulse flushing and direct push injection flushing, can be performed at the push injector 8. The cleaning ability of the two flushing methods on the residue on the inner wall of the Y-shaped tube 7 can be observed at the Y-shaped tube 7. The pulse flushing is an intermittent propulsion method, which will form a vortex in the channel, so that the cleaning ability is stronger, which can effectively reduce the blockage in the tube, thereby facilitating the observation and in-depth learning of medical staff;

[0025] The catheter balloon 9 is sleeved outside the simulated blood vessel 3, and the end of the simulated blood vessel 3 is connected to a liquid storage bag 10. The outside of the simulated blood vessel 3 is provided with an indwelling needle tube clamp 11 located on one side of the catheter balloon 9 near the proximal end. By squeezing the catheter balloon 9 to simulate the increase in pressure in the patient's blood vessels and simulating the patient's hand movement, students can observe the probability of blood return and tube blockage in the indwelling needle part 5. The indwelling needle tube clamp 11 is used in a U-shaped fixing method and a random fixing method, and the simulation teaching aid arm 1 is rotated by the rotating shaft 12 to simulate the movement of the patient's arm, so as to observe whether the indwelling needle part 5 has blood return. The intravenous catheter maintenance teaching aid can be operated repeatedly, which not only exercises the students' hands-on ability, but also allows students to understand the principles behind the correct operation through experiments, so that they can know the reasons and easily master the standardized process of peripheral venous access maintenance in the process of learning and playing.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Peripheral vascular access maintenance teaching aids, including: A simulated teaching aid arm (1) and a simulated blood vessel (3) passing through the surface of the simulated teaching aid arm (1), It is characterized by further comprising: An operating opening (2) is provided on the surface of the simulated teaching aid arm (1); a retention needle portion (5) is provided in the groove of the operating opening (2) and is interlaced and communicated with the simulated blood vessel (3); The catheter balloon (9) is sleeved outside the simulated blood vessel (3); the end of the simulated blood vessel (3) is connected to a liquid storage bag (10); and a rotating shaft (12) is provided at the connection between the two sets of simulated teaching aid arms (1).

2. The peripheral vascular access maintenance teaching aid according to claim 1, characterized in that: One end of the simulated blood vessel (3) away from the liquid storage bag (10) passes through the simulated teaching aid arm (1) and extends outwards and is connected to a syringe (4).

3. The peripheral vascular access maintenance teaching aid according to claim 1, characterized in that: One end of the indwelling needle portion (5) is connected to an indwelling connecting tube (6), and one end of the indwelling connecting tube (6) away from the indwelling needle portion (5) is connected to a Y-shaped tube (7).

4. The peripheral vascular access maintenance teaching aid according to claim 3, characterized in that: One end of the Y-shaped tube (7) is connected to the injection device (8) via an indwelling connecting tube (6).

5. The peripheral vascular access maintenance teaching aid according to claim 1, characterized in that: A bottom platform (14) is provided at the bottom of the simulation teaching aid arm (1).

6. The peripheral vascular access maintenance teaching aid according to claim 1, characterized in that: The simulated blood vessel (3) is provided with an indwelling needle tube clamp (11) located on one side of the catheter balloon (9) close to the proximal end.

7. The peripheral vascular access maintenance teaching aid according to claim 1, characterized in that: A rubber piece (13) is provided between the two sets of simulated teaching aid arms (1).

Images