Ultrasound-guided deep vein puncture and catheterization model

Abstract

The present invention discloses an ultrasound-guided deep vein puncture and catheterization model, relating to the technical field of medical puncture models. The present invention comprises a human body model and a blood vessel model; the blood vessel model and the human body model are plugged together; the sides of the outlet ends of the arterial and venous simulated tubes are both provided with U-shaped grooves; the sides of the arterial and venous simulated tubes are both adhesively wrapped with adhesive tape at the locations of the U-shaped grooves; an alkaline container and an acidic container are respectively connected to the blood vessel model; and a plug-in sleeve is plugged together with a phenolphthalein test tube. The present invention provides U-shaped grooves on the sides of the arterial and venous simulated tubes, and adhesive tape is used to wrap the U-shaped grooves. The adhesive tape can be replaced to simulate the feeling of a missed puncture. After the puncture is completed, the puncture needle is pulled out of the simulated tube, and the test fluid in the simulated tube seeps out of the puncture hole and falls into the puncture cavity, and then drips into the phenolphthalein test tube. The phenolphthalein does not change color when exposed to acid, but turns red when exposed to alkali, and is used to determine whether the punctured simulated tube is arterial or venous.

Description

Technical Field

[0001] The invention belongs to the technical field of medical puncture models, and in particular relates to a deep vein puncture and catheterization model under ultrasound guidance. Background Art

[0002] Venipuncture is a fundamental technique in clinical nursing. Achieving a successful first-time puncture and alleviating pain are not only crucial for clinical treatment and emergency response, but also build patient trust and enhance the hospital's reputation among the public. The medical venipuncture model is a realistic human model. It facilitates repeated puncture training for nursing staff, effectively improving the success rate of first-time punctures.

[0003] Most of the vascular models in existing deep vein puncture and catheterization models use rubber tubes to simulate arteries and veins. During the puncture process, the sense of missing the puncture is poor, which affects the training effect of medical workers. At the same time, the existing deep vein puncture and catheterization models lack internal judgment structures, making it difficult to determine whether the artery was accidentally punctured during the puncture process. Summary of the Invention

[0004] The present invention aims to provide a deep vein puncture and catheterization model under ultrasound guidance. The invention provides a U-shaped groove on the side of an arterial and venous simulated tube, and wraps the U-shaped groove with adhesive tape. The adhesive tape can be replaced to simulate the feeling of a missed puncture. After the puncture is completed, the puncture needle is pulled out of the simulated tube, and the test fluid in the simulated tube seeps out of the puncture hole into the puncture cavity and drips into a phenolphthalein test tube. The characteristic that the phenolphthalein does not change color when exposed to acid but turns red when exposed to alkali can be used to determine whether the punctured simulated tube is an artery or a vein.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a model for deep vein puncture and catheterization under ultrasound guidance, comprising a human body model and a blood vessel model; the blood vessel model is plugged into and matched with the human body model; the blood vessel model comprises a mounting frame; an arterial simulation tube and a venous simulation tube are fixedly connected in sequence within the mounting frame; the arterial simulation tube and the venous simulation tube are each provided with a U-shaped groove on the side surfaces surrounding the outlet ends; and the sides of the arterial simulation tube and the venous simulation tube at the U-shaped groove are both adhesively wrapped with adhesive tape.

[0007] An alkaline container and an acidic container are fixedly installed on the side of the human body model in sequence; the alkaline container and the acidic container are respectively connected to the blood vessel model; a support plate is symmetrically fixedly connected to the bottom surface of the human body model; a connecting plate is fixedly connected to the side of the support plate; a plug-in sleeve is fixedly connected to the surface of the connecting plate; and a phenolphthalein test tube is plugged into the plug-in sleeve.

[0008] Furthermore, a heart cavity is opened inside the human body model; an observation window is opened on the surface of the heart cavity; a puncture cavity is opened inside the human body model between the neck and the heart cavity; the human body model is made of layered identification ultrasonic material, and a soft block connected to the skin layer is provided on the surface of the human body model; a liquid outlet is opened on the bottom surface of the puncture cavity; the liquid outlet is located directly above the phenolphthalein test tube.

[0009] Furthermore, the inner wall of the puncture cavity is symmetrically provided with sliding grooves; the two sides of the mounting frame are symmetrically fixedly connected with sliding rails; the sliding rails are slidably matched with the sliding grooves; the inner walls of the heart cavity and the puncture cavity are both coated with acid and alkali resistant anti-corrosion paint.

[0010] Furthermore, the puncture cavity and the inner wall of the heart cavity are both provided with through grooves; the blood vessel model passes through the through grooves of the puncture cavity and the inner wall of the heart cavity in sequence; a plurality of plug holes are provided on the surface of the through groove of the inner wall of the puncture cavity; a plug rod is fixedly connected to the side of the mounting frame; the plug rod is plugged into and matched with the plug hole.

[0011] Furthermore, a liquid pump is provided on the side of the alkaline container and the acidic container; a liquid inlet hose is fixedly connected between the output ports of the two liquid pumps and the inlet ends of the arterial simulation tube and the venous simulation tube respectively; a reflux pipe is provided on the side of the liquid pump near the top; a recovery hose is fixedly connected between the outlet ends of the arterial simulation tube and the venous simulation tube and the two reflux pipes respectively.

[0012] The present invention has the following beneficial effects:

[0013] 1. The present invention provides a U-shaped groove on the side of the simulated artery and vein tube, and wraps the U-shaped groove with adhesive tape. The adhesive tape can be replaced to simulate the feeling of a missed puncture, thereby improving the training effect.

[0014] 2. After the puncture is completed, the puncture needle is pulled out of the simulation tube. The test liquid in the simulation tube seeps out from the puncture hole and drops into the puncture cavity and drips into the phenolphthalein test tube. The characteristic of phenolphthalein that it does not change color when it encounters acid but turns red when it encounters alkali is used to determine whether the punctured simulation tube is an artery or a vein, thereby improving the accuracy of the training.

[0015] 3. The present invention has a visible observation window, and the guidewire catheter can be seen entering the heart; the layered identification ultrasound material is made into an overall human body model for ultrasound identification guidance, and the dual pumps are separated, one connected to the arterial simulation tube and the other connected to the venous simulation tube, to control the flow rate in the inlet and outlet directions and simulate real ultrasound imaging.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural schematic diagram of an ultrasound-guided deep vein puncture and catheterization model of the present invention.

[0019] Figure 2 Schematic diagram of the structure of the human body model of the present invention.

[0020] Figure 3 This is a schematic structural diagram of the human body model of the present invention from another angle.

[0021] Figure 4 Schematic diagram of the structure of the blood vessel model of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1-Human body model, 2-Blood vessel model, 3-Mounting frame, 4-Arterial simulation tube, 5-Venous simulation tube, 6-U-shaped groove, 7-Adhesive tape, 8-Alkaline container, 9-Acid container, 10-Support plate, 11-Connecting plate, 12-Connecting sleeve, 13-Phenolphthalein test tube, 14-Heart cavity, 15-Observation window, 16-Punch cavity, 17-Sliding groove, 18-Slide rail, 19-Through groove, 20-Connecting hole, 21-Plug rod, 22-Suction pump, 23-Liquid inlet hose, 24-Return pipe, 25-Recovery hose, 26-Liquid outlet, 27-Soft block with cortex. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figure 1-4 As shown, the present invention is a model for deep vein puncture and catheterization under ultrasound guidance, comprising a human body model 1 and a blood vessel model 2; the blood vessel model 2 is plugged into the human body model 1; the blood vessel model 2 comprises a mounting frame 3; an arterial simulation tube 4 and a venous simulation tube 5 are fixedly connected in sequence within the mounting frame 3; U-shaped grooves 6 are formed on the sides of the outlet ends of the arterial simulation tube 4 and the venous simulation tube 5; and adhesive tape 7 is adhered and wrapped around the sides of the arterial simulation tube 4 and the venous simulation tube 5 at the position of the U-shaped groove 6.

[0026] An alkaline container 8 and an acidic container 9 are fixedly mounted on the side of the human body model 1 in sequence; the alkaline container 8 and the acidic container 9 are respectively connected to the blood vessel model 2; a support plate 10 is symmetrically fixedly connected to the bottom surface of the human body model 1; a connecting plate 11 is fixedly connected to the side of the support plate 10; a plug sleeve 12 is fixedly connected to the surface of the connecting plate 11; and a phenolphthalein test tube 13 is plugged into the plug sleeve 12.

[0027] U-shaped grooves 6 are provided on the sides of the arterial simulation tube 4 and the venous simulation tube 5, and the U-shaped grooves 6 are bonded and wrapped with adhesive tape 7. The adhesive tape 7 can be replaced to simulate the feeling of a missed puncture, thereby improving the training effect. After the puncture is completed, the puncture needle is pulled out of the simulation tube, and the test liquid in the simulation tube seeps out from the puncture hole and falls into the puncture cavity 16, and then drips into the phenolphthalein test tube 13. The characteristic that phenolphthalein does not change color when it comes into contact with acid but turns red when it comes into contact with alkali can be used to determine whether the punctured simulation tube is an artery or a vein, thereby improving the accuracy of the training.

[0028] The mannequin 1 has a heart cavity 14 formed inside; an observation window 15 is formed on the surface of the heart cavity 14; a puncture cavity 16 is formed inside the mannequin 1 between the neck and the heart cavity 14; the mannequin 1 is made of a layered ultrasonic identification material, and a soft block-connected skin layer 27 is provided on the surface of the mannequin 1; a liquid outlet 26 is formed on the bottom surface of the puncture cavity 16; the liquid outlet 26 is located directly above the phenolphthalein test tube 13;

[0029] The layered recognition ultrasound material is made into an overall human body model 1 for ultrasound recognition guidance.

[0030] Among them, the inner wall of the puncture cavity 16 is symmetrically opened with sliding grooves 17; the two sides of the mounting frame 3 are symmetrically fixedly connected with slide rails 18; the slide rails 18 slide in conjunction with the sliding grooves 17; the inner walls of the heart cavity 14 and the puncture cavity 16 are coated with acid and alkali resistant anti-corrosion paint;

[0031] Since the inner walls of the heart cavity 14 and the puncture cavity 16 are coated with acid and alkali resistant anti-corrosion paint, the heart cavity 14 and the puncture cavity 16 placed in the human body model 1 are protected from acid and alkali corrosion.

[0032] The puncture cavity 16 and the inner wall of the heart cavity 14 are each provided with a through slot 19; the blood vessel model 2 sequentially passes through the through slot 19 of the puncture cavity 16 and the inner wall of the heart cavity 14; the through slot 19 of the inner wall of the puncture cavity 16 is provided with a plurality of insertion holes 20; a plug rod 21 is fixedly connected to the side of the mounting frame 3; the plug rod 21 is plugged into the insertion hole 20;

[0033] The blood vessel model 2 slides along the sliding groove 17 so that the insertion rod 21 is inserted into the insertion hole 20 to achieve the installation of the blood vessel model 2; when the adhesive tape 7 needs to be replaced, the blood vessel model 2 can be pulled out of the puncture cavity 16.

[0034] The alkaline container 8 and the acid container 9 are both provided with a liquid pump 22 on their sides; a liquid inlet hose 23 is fixedly connected between the output ports of the two liquid pumps 22 and the inlet ends of the arterial simulation tube 4 and the venous simulation tube 5, respectively; a return pipe 24 is provided on the side of the liquid pump 22 near the top; a recovery hose 25 is fixedly connected between the outlet ends of the arterial simulation tube 4 and the venous simulation tube 5 and the two return pipes 24, respectively;

[0035] The alkaline solution and acidic solution in the alkaline container 8 and the acidic solution in the acidic container 9 are pumped into the arterial simulation tube 4 and the venous simulation tube 5 in the vascular model 2 respectively through two liquid pumping pumps 22, and then flow back to the corresponding alkaline container 8 and acidic container 9 through two recovery hoses 25.

[0036] The specific working principle of the present invention is:

[0037] The blood vessel model 2 slides along the sliding groove 17 so that the insertion rod 21 is inserted into the insertion hole 20 to achieve the installation of the blood vessel model 2; when the adhesive tape 7 needs to be replaced, the blood vessel model 2 can be pulled out of the puncture cavity 16; the alkaline solution and acidic solution in the alkaline container 8 and the acidic container 9 are respectively pumped into the arterial simulation tube 4 and the venous simulation tube 5 in the blood vessel model 2 through the two liquid pumps 22, and then returned to the corresponding alkaline container 8 and acidic container 9 through the two recovery hoses 25; A U-shaped groove 6 is provided on the side of the arterial simulation tube 4 and the venous simulation tube 5, and the U-shaped groove 6 is bonded and wrapped with adhesive tape 7. The adhesive tape 7 can be replaced to simulate the feeling of a missed puncture, thereby improving the training effect. After the puncture is completed, the puncture needle is pulled out of the simulation tube, and the test liquid in the simulation tube seeps out from the puncture hole and falls into the puncture cavity 16, and then drips into the phenolphthalein test tube 13. The characteristic of phenolphthalein that it does not change color when exposed to acid but turns red when exposed to alkali can be used to determine whether the punctured simulation tube is an artery or a vein, thereby improving the accuracy of the training.

[0038] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A deep vein puncture and catheterization model under ultrasound guidance, comprising a human body model (1) and a blood vessel model (2); the blood vessel model (2) is plugged into and matched with the human body model (1); Its characteristics are: The blood vessel model (2) includes a mounting frame (3); an arterial simulation tube (4) and a venous simulation tube (5) are fixedly connected in sequence inside the mounting frame (3); a U-shaped groove (6) is formed on the side surfaces around the outlet ends of the arterial simulation tube (4) and the venous simulation tube (5); and adhesive tape (7) is adhered and wrapped around the side surfaces of the arterial simulation tube (4) and the venous simulation tube (5) at the position of the U-shaped groove (6); An alkaline container (8) and an acid container (9) are fixedly mounted on the side of the human body model (1) in sequence; the alkaline container (8) and the acid container (9) are respectively connected to the blood vessel model (2); a support plate (10) is symmetrically fixedly connected to the bottom surface of the human body model (1); a connecting plate (11) is fixedly connected to the side of the supporting plate (10); a plug-in sleeve (12) is fixedly connected to the surface of the connecting plate (11); a phenolphthalein test tube (13) is plugged into the plug-in sleeve (12); The human body model (1) has a heart cavity (14) formed inside; an observation window (15) is formed on the surface of the heart cavity (14); a puncture cavity (16) is formed inside the human body model (1) between the neck and the heart cavity (14); the human body model (1) is made of a layered ultrasonic identification material, and a soft block-connected skin layer (27) is provided on the surface of the human body model (1); a liquid outlet (26) is formed on the inner bottom surface of the puncture cavity (16); the liquid outlet (26) is located directly above the phenolphthalein test tube (13); The inner wall of the puncture cavity (16) is symmetrically provided with sliding grooves (17); the two sides of the mounting frame (3) are symmetrically fixedly connected with sliding rails (18); the sliding rails (18) and the sliding grooves (17) are slidably matched; the inner walls of the heart cavity (14) and the puncture cavity (16) are both coated with acid and alkali resistant anti-corrosion paint; A liquid extraction pump (22) is provided on the side of the alkaline container (8) and the acid container (9); a liquid inlet hose (23) is fixedly connected between the output ports of the two liquid extraction pumps (22) and the inlet ends of the arterial simulation tube (4) and the venous simulation tube (5); a return pipe (24) is provided on the side of the liquid extraction pump (22) near the top; a recovery hose (25) is fixedly connected between the outlet ends of the arterial simulation tube (4) and the venous simulation tube (5) and the two return pipes (24).

2. The ultrasound-guided deep vein puncture and catheterization model according to claim 1, characterized in that: The inner walls of the puncture cavity (16) and the heart cavity (14) are both provided with a through groove (19); the blood vessel model (2) sequentially passes through the through groove (19) of the puncture cavity (16) and the inner wall of the heart cavity (14); a plurality of plug holes (20) are provided on the surface of the through groove (19) of the inner wall of the puncture cavity (16); a plug rod (21) is fixedly connected to the side of the mounting frame (3); the plug rod (21) is plugged into and matched with the plug hole (20).

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