CN2164087Y

CN2164087Y - Arm model for intravenous puncture

Info

Publication number: CN2164087Y
Application number: CN 93240194
Authority: CN
Inventors: 衡凤莉; 张友峰; 桂艳丽
Original assignee: XINXIANG CITY NURSE TRAINING SCHOOL HENAN PROV
Current assignee: XINXIANG CITY NURSE TRAINING SCHOOL HENAN PROV
Priority date: 1993-09-27
Filing date: 1993-09-27
Publication date: 1994-05-04
Anticipated expiration: 2003-09-27

Abstract

The utility model discloses an arm model for intravenous puncture, comprising an emulational skin layer, a simulative blood vessel and a human body model. The surface below the upper hollow cavity of the human body model is provided with two flutes along the direction of the cardinal vein blood vessel, the surface of the simulative blood vessel is provided with a medical application vaseline layer, and the simulative blood vessel is arranged in the flute, above a spongy layer and below the emulational skin layer. A liquid-storing device in the hollow cavity is connected with the simulative blood vessel and a three-way pipe for drainage use, and a plug is arranged on the position of the simulative blood vessel leading to the fingertip of the middle finger and the ring finger. The arm model for intravenous puncture has the advantages of simple structure, low cost and strong reality. In addition, the utility model has the advantage that repeated intravenous puncture can be done at many places on the forearm, and after the puncture the liquid does not leak outward from the needle opening, reducing dirt to the model as much as possible.

Description

Arm model for intravenous puncture

The utility model relates to a kind of medical teaching apparatus, is applicable to that particularly the medical care student carries out the arm model of technique drills such as venipuncture blood drawing, injection, transfusion, blood transfusion.

" the upper limbs injection training pattern " of China Patent No. 90217061.9 is made up of skin layer, simulated blood vessel and human body, simulated blood vessel is communicated with hydraulic means, be provided with lead in the blood vessel, between blood vessel and the human body wire netting is arranged, lead, wire netting are connected in series with pilot lamp, power supply, syringe needle respectively and constitute display circuit, are used to show the accuracy of venipuncture.Though it is clear that it has the successfully back circuit demonstration of puncturing, help the student to carry out multiple venipuncture training, but its complex structure, and cost is higher, there is not the sense that falls through during puncture, pumpback does not have blood back, wears blood vessel even prick, as long as syringe needle contacting metal net pilot lamp still can be bright, can not show clinical puncture situation comprehensively, and puncture back simulated blood vessel pin mouth place easy to leak, the whole model of often making dirty can not repeatedly carry out the venipuncture training.

The purpose of this utility model provide a kind of simple in structure, cost is low, can make the not venipuncture arm model of easy to leak of repeatedly venipuncture and puncture back simulated blood vessel in the forearm many places.

Task of the present utility model is finished as follows: it is by the simulation skin layer, simulated blood vessel and human body model constitute, the human body model is a cavity by the upper arm end, sump assemblies is arranged in the cavity, the following surface of human body model cavity has two grooves along cardinal vein blood vessel trend, the groove inner bottom part is filled with the sponge layer, the human body model surface has the simulation skin layer, there is the medical ventolin layer on the simulated blood vessel surface, simulated blood vessel is contained in the groove above the sponge layer below the simulation skin layer, sump assemblies connects with three-way pipe with simulated blood vessel, retaining valve is equipped with in the sump assemblies porch, the exit three-way pipe connects simulated blood vessel and drainage tube, simulated blood vessel leads to middle finger and nameless finger tip around the human body model along groove, in the finger tip place simulated blood vessel stopper is housed.

The utility model makes cost simple in structure low owing to circuit part removed to change into fill out sponge in the groove, and strong sense of reality is because increase petrolatum layer with the simulated blood vessel surface, so puncture back liquid is difficult for from the outside seepage of the pin mouth model of making dirty.Can carry out repeatedly venipuncture training in the forearm many places.

Below with reference to accompanying drawing an embodiment of the present utility model is described in detail.

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

The utility model venipuncture arm model is by simulation skin layer 1, human body model 2, simulated blood vessel 5 and sump assemblies 9 are formed, human body model 2 semi-hard plastic single injection-molded, it is a cavity near the upper arm section part, sump assemblies 9 is installed in the cavity, the following surface of human body model 2 cavitys has two grooves 3 by human body cardinal vein trend, be stained with sponge layer 4 in the groove 3 as soft tissue layer, make and be punctured with the sense of reality, sponge layer 4 upper berth simulated blood vessel 5, simulated blood vessel 5 is to make with latex, the surface scribbles medical ventolin layer 6, a retaining valve 10 is equipped with in sump assemblies 9 porch, the effect of retaining valve is to stop liquid to flow out, and prevents to form in the infusion set negative pressure.The infusion set exit connects three-way pipe 8, three-way pipe 8 in addition two ends respectively with cavity in drainage tube 11 be connected with simulated blood vessel 5 in the groove 3, simulated blood vessel 5 leads to middle finger and nameless finger tip place along groove 3, stopper 7 is housed in the simulated blood vessel at this two place, and the skin that at last rubber and plastic hand with extended arm cover is enclosed within human body model 2 is as simulation skin layer 1.As when carrying out venipuncture procedure, clamp drainage tube 11 outlets earlier, open two stoppers 7, in sump assemblies 9, inject simulate blood by retaining valve 10, wait to fill with sump assemblies 9 and simulated blood vessel 5 after, with two stopper 7 jam-packs, can carry out venipuncture, as the success of puncturing, the pumpback visible blood-back; As make vein haemospasia, and can directly extract required blood volume with syringe, at this moment sump assemblies 9 inner bloods reduce, and can pass through retaining valve 10 supplemental blood in infusion set at any time; As do intravenous injection, when transfusion or blood transfusion, puncture successfully after, unclamp drainage tube 11, and with itself and drainage system connection, so that the liquid that reception is injected in the vein blood vessel.

Claims

1, a kind of venipuncture arm model, it includes the simulation skin layer, simulated blood vessel, with the human body model, it is characterized in that: the human body model is a cavity by the upper arm end, sump assemblies is arranged in the cavity, the following surface of human body model cavity has two grooves along cardinal vein blood vessel trend, the groove inner bottom part is filled with the sponge layer, the human body model surface has the simulation skin layer, there is the medical ventolin layer on the simulated blood vessel surface, simulated blood vessel is contained in the groove above the sponge layer below the simulation skin layer, sump assemblies connects with three-way pipe with simulated blood vessel, retaining valve is equipped with in the sump assemblies porch, the exit three-way pipe connects simulated blood vessel and drainage tube, and simulated blood vessel leads to middle finger and nameless finger tip around the human body model along groove, in the finger tip place simulated blood vessel stopper is housed.