CN-122024571-A - Blood collection simulation teaching device for children

CN122024571ACN 122024571 ACN122024571 ACN 122024571ACN-122024571-A

Abstract

The invention belongs to the technical field of medical teaching, and particularly relates to a children blood collection simulation teaching device which comprises a table plate, wherein a model is placed on the table plate, a disassembly and assembly part comprises an elbow block, the elbow block is connected with a hand block, the model is connected with a foot block, the elbow block, the hand block and the foot block are respectively inserted with a simulation block, a switching part comprises a supporting rod, the supporting rod is connected with a rotating pipe, a gear is connected with the rotating pipe, the simulation block is arranged in the rotating pipe, a driving part comprises a pull rod, the pull rod is connected with a driving rod A, the driving rod A is connected with a driving rod B, the driving rod A and the driving rod B are connected with a push rod, and a fixing part comprises a sliding rod, and the sliding rod is connected to the side face of the elbow block and is connected with the pull rod. The invention can simulate blood sampling teaching and training for different positions of the infant, and can replace different simulation blocks according to requirements, thereby simulating the infant in body shape and state and improving the teaching effect.

Inventors

LI CUICUI
HUANG MIMI
WANG YANYAN
JIANG XUN
FU CHUNNING
DU YAN
WANG WEITING

Assignees

中国人民解放军空军军医大学

Dates

Publication Date: 20260512
Application Date: 20260330

Claims (10)

1. The blood collection simulation teaching device for children is characterized by comprising: The table board is provided with a model at the upper end; The disassembly and assembly part comprises an elbow block, the elbow block is connected to the side face of the model, the elbow block is connected with a hand block, the model is connected with a foot block, and the elbow block, the hand block and the foot block are respectively inserted with a simulation block; The switching part comprises a supporting rod, the supporting rod is connected in the elbow block, the outer ring of the supporting rod is connected with a rotary pipe, the rotary pipe is connected with a gear, the inner cavity of the rotary pipe is provided with four groups of simulation blocks, and one group of simulation blocks extends out of the elbow block; the driving part comprises a pull rod, the pull rod is connected with a driving rod A, the driving rod A is connected with a driving rod B, the driving rod A and the driving rod B are both rotationally connected with a push rod, and the upper end of the push rod is connected with the lower end of the simulation block; the fixed part comprises a sliding rod which is connected to the side surface of the elbow block and is connected with the pull rod; the simulation block is divided into two states according to the motion of the driving part, wherein the driving rod A is positioned in the inner cavity of the rotary pipe, the ejector rod and the simulation block are in a retracted state, and the rotary gear can drive the rotary pipe to rotate at the moment; and in the second state, the pull rod is connected with the driving rod A and pulls the sliding rod, at the moment, the driving rod A and the driving rod B move reversely to drive the two groups of ejector rods to rotate upwards, so that the simulation block rises and stretches out of the elbow block, and at the moment, the rotary pipe cannot rotate.
2. The blood collection simulation teaching device for children according to claim 1, wherein the lower end of the table plate is fixedly connected with lifting legs, the right side of the table plate is rotatably connected with two groups of extension tables, the upper end of the table plate is provided with a model, and foot areas of the model are arranged on the extension tables.
3. The blood collection simulation teaching device for children according to claim 1, wherein elbow blocks are fixedly inserted into two arm areas of the model, hand blocks are rotatably connected to one ends of the two elbow blocks, which are far away from the head of the model, and foot blocks are rotatably connected to the lower ends of leg areas of the model.
4. The children blood collection simulation teaching device according to claim 3, wherein a groove is formed in a fingertip position of the hand block, a silica gel block is movably inserted into the groove, a buckle is arranged at a connecting part of the silica gel block and the hand block, the silica gel block is clamped with the hand block through the buckle, and a simulation block is movably inserted above each of the elbow block, the hand block and the foot block.
5. The simulated teaching device for blood collection of children according to claim 1, wherein the part of the elbow block, which is in contact with the model, is provided with a cavity, a supporting rod is fixedly connected in the cavity, an outer ring of the supporting rod is rotationally connected with a rotary pipe, one end of the rotary pipe, which is far away from the hand block, is fixedly connected with a gear ring, an annular groove is formed on the side surface of the elbow block, a gear is rotationally connected in the groove, the outer ring of the gear is meshed with the outer ring of the gear ring, a driving wheel is fixedly connected on the side surface of the gear, and the driving wheel is movably sleeved in the annular groove on the side surface of the elbow block.
6. The children blood collection simulation teaching device of claim 5, wherein four groups of grooves are formed in the outer ring of the rotating tube, mounting plates are slidably connected in the grooves, simulation blocks are fixedly inserted into the outer ends of the four groups of mounting plates, through grooves are formed in the middle of the upper ends of the elbow blocks, and one group of simulation blocks extend out of the elbow blocks through the through grooves.
7. The children blood collection simulation teaching device of claim 6, wherein the driving part further comprises a limiting pipe, the limiting pipe is fixedly connected to the middle part of the supporting rod, a pull rod is slidably connected to the inner cavity of the limiting pipe, one end of the pull rod, which is close to the hand block, penetrates through and extends out of the supporting rod, one end of the pull rod, which extends out of the supporting rod, is fixedly connected with a pull block, the inner cavity of the rotating pipe is slidably connected with a driving rod A, one end of the driving rod A, which extends out of the rotating pipe, is movably sleeved on the outer ring of the pull block, the inner cavity of the rotating pipe is slidably connected with a driving rod B, a cavity is formed in the position of the rotating pipe between the driving rod A and the driving rod B, a driving wheel is rotationally connected to the inner cavity, tooth grooves are formed in one surface, which is adjacent to the driving rod A and the driving rod B, and two groups of tooth grooves are meshed with the outer ring of the driving wheel.
8. The simulated teaching device for blood collection of children according to claim 7, wherein the driving rod A and the driving rod B are rotatably connected with ejector rods at the ends far away from each other, the ejector rods are slidably connected in the inner cavity of the rotating tube, and the upper ends of the two groups of ejector rods are rotatably connected at the lower end of the mounting plate.
9. The children blood collection simulation teaching device of claim 7, wherein the sliding rod is fixedly connected to the side face of the pull rod, through grooves are formed in the side face of the limiting pipe and the side face of the elbow block, the outer ring of the sliding rod is slidably connected in the through grooves, the middle part of the supporting rod is fixedly connected with the limiting rod, the outer ring of the middle section of the sliding rod is slidably connected to the outer ring of the limiting rod, and a handle is fixedly connected to the part of the sliding rod extending out of the elbow block.
10. The children blood collection simulation teaching device of claim 9, wherein the upper side and the lower side of the elbow block side through groove are respectively provided with a positioning groove, the upper side and the lower side of the sliding rod are respectively and rotatably connected with a positioning block, one side, close to the inner cavity of the sliding rod, of the positioning block is fixedly connected with a pull rope, the other end of the pull rope penetrates through the sliding rod and stretches into the inner cavity of the handle, the upper side and the lower side of the handle are respectively and slidably connected with a push block, and one end, stretching into the inner cavity of the handle, of the pull rope is fixedly connected with the middle part of the push block.

Description

Blood collection simulation teaching device for children Technical Field The invention belongs to the technical field of medical teaching, and particularly relates to a blood collection simulation teaching device for children. Background Venous blood sampling is one of the most basic and frequent operations in clinical care, but in the pediatric field, this operation is a "test stone" that tests the state of the art and psychological quality of caregivers. Compared with adults, the intravenous blood sampling of children has the defects of slender blood vessels, poor coordination degree, abundant subcutaneous fat and the like, and the operation difficulty is remarkably improved, however, the simulation training means for the blood sampling of children in the current nursing education still has some problems. First, children are not simple scaled-down versions of adults, infants have finer veins, and children of different ages and different nutritional status have significant differences in vein depth. While the newborn has thin subcutaneous fat and superficial vein, part of the infants has abundant subcutaneous fat and deeper vein positions, the needle insertion angle and depth need to be accurately grasped, the existing teaching model is only provided with one vein depth, the difference of the blood vessel depths of children with different age groups and different nutrition conditions cannot be simulated, and the infants can easily form a fixed operation mode and strength expectation after practicing on a hand feeling for a long time. When facing a truly ill child, once the hand is different from that when training, the operator may fail because of the inability to adapt. Second, unlike adults, which predominate the upper extremity vein, the pediatric blood collection site is more extensive, including but not limited to the dorsal, median elbow, and dorsal foot veins. The fixing modes, the needle inserting angles and the hemostasis methods of different parts are different and need to be trained respectively, however, the existing model is usually only provided with the upper limb vein, and blood sampling simulation cannot be carried out on the region of the lower limb. Disclosure of Invention The invention aims to provide a children blood collection simulation teaching device which can simulate blood collection teaching and training for different positions of an infant and can replace different simulation blocks according to requirements, so that the infant with the body shape and the state can be simulated, and the teaching effect is improved. The technical scheme adopted by the invention is as follows: A blood collection simulation teaching device for children, comprising: The table board is provided with a model at the upper end; The disassembly and assembly part comprises an elbow block, the elbow block is connected to the side face of the model, the elbow block is connected with a hand block, the model is connected with a foot block, and the elbow block, the hand block and the foot block are respectively inserted with a simulation block; The switching part comprises a supporting rod, the supporting rod is connected in the elbow block, the outer ring of the supporting rod is connected with a rotary pipe, the rotary pipe is connected with a gear, the inner cavity of the rotary pipe is provided with four groups of simulation blocks, and one group of simulation blocks extends out of the elbow block; the driving part comprises a pull rod, the pull rod is connected with a driving rod A, the driving rod A is connected with a driving rod B, the driving rod A and the driving rod B are both rotationally connected with a push rod, and the upper end of the push rod is connected with the lower end of the simulation block; the fixed part comprises a sliding rod which is connected to the side surface of the elbow block and is connected with the pull rod; the simulation block is divided into two states according to the motion of the driving part, wherein the driving rod A is positioned in the inner cavity of the rotary pipe, the ejector rod and the simulation block are in a retracted state, and the rotary gear can drive the rotary pipe to rotate at the moment; and in the second state, the pull rod is connected with the driving rod A and pulls the sliding rod, at the moment, the driving rod A and the driving rod B move reversely to drive the two groups of ejector rods to rotate upwards, so that the simulation block rises and stretches out of the elbow block, and at the moment, the rotary pipe cannot rotate. In a preferred scheme, the lower extreme fixedly connected with lift leg of table, the right side of table rotates and is connected with two sets of extension platforms, and the model has been placed to the upper end of table, and the foot region of model is placed on extending platform. In a preferred scheme, the elbow blocks are fixedly inserted into the two arm areas of the model, the hand blocks are rotatably co