Pulsation transfusion device

A pulsatile, blood transfusion needle technology, used in pressure infusion, devices introduced into the body, etc., can solve problems such as aggravating the disease, patient discomfort, and easily interfere with treatment, and achieve the effect of reducing discomfort

Active Publication Date: 2019-10-01
THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing pressurization devices use constant pressure, which causes the blood flow rate to be stable and inconvenient. If the flow rate is too large, it will cause discomfort to the patient, and even if the patient is unconscious, the body will also have some stress reactions, which is easy Interfere with treatment, and in severe cases, aggravate the condition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The extruding mechanism includes a mounting plate 10 vertically fixed on the supporting plate 6. A sleeve 17 and a first linear reciprocating mechanism are fixedly arranged on the mounting plate 10. The sleeve 17 and the conduit 5 are perpendicular to each other. There are a fixed ring 16 and a movable ring 19, wherein the movable ring 19 is close to the expansion part 9, and the fixed ring 16 and the movable ring 19 are connected by a first spring 18, and the first linear reciprocating mechanism is driven and connected with a push rod 15 to push The rod 15 passes through the fixed ring 16 and the movable ring 19 in sequence and is fixedly connected with the extruding plate 20 , and the pushing rod 15 is fixedly connected with the movable ring 19 .

[0028] During the working process of the first linear reciprocating mechanism, the push rod 15 is driven to move axially during the process of stroke expansion, and then the push rod 15 pushes the movable ring 19 and the ext...

Embodiment 2

[0033] The extrusion mechanism includes a mounting plate 10 vertically arranged on the supporting plate 6 and a movable sleeve 26 slidingly sleeved on the conduit 5. The mounting plate 10 is fixedly provided with a guide seat 21 and a fixed seat 27, and the guide seat 21 and the fixed seat 27 are respectively located on both sides of the conduit 5, the guide seat 21 is provided with a guide groove 22, and the guide groove 22 is provided with a fixed block 23 and a movable block 25, the fixed block 23 and the movable block 25 are connected by the second spring 24, and the fixed seat A sliding piece is slidably arranged on 27, and the sliding piece and the movable block 25 are fixedly connected with the movable sleeve 26, and the sliding piece is also connected with a pushing unit for pushing the sliding piece.

[0034] The pushing unit pushes the movable part to slide on the fixed seat 27, and the movable part drives the movable sleeve 26 to move toward the patient along the cathe...

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PUM

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Abstract

A pulsation transfusion device comprises a catheter for making a blood bag communicated with a transfusion needle. The middle of the catheter from the blood bag to the transfusion needle is sequentially provided with a shrinkage part and an expansion part. An extrusion mechanism for periodically extruding the expansion part is arranged on one side of the expansion part. By means of the pulsation transfusion device, the normal blood supply process of a heart can be simulated, and therefore the discomfort of a patient is relieved, and it is avoided that the illness state of the patient is worsened by the irritability reaction generated by the body of the patient.

Description

technical field [0001] The invention relates to the field of blood transfusion devices, in particular to a pulsatile blood transfusion device. Background technique [0002] Blood transfusion is a commonly used rescue method in the medical process, mainly for patients who have lost blood. In the prior art, in order to overcome the resistance of the blood vessels and ensure the smooth progress of the blood transfusion process, an additional pressurizing device is usually added to increase the blood pressure and flow rate. However, most of the existing pressurization devices use constant pressure, which causes the blood flow rate to be stable and inconvenient. If the flow rate is too high, it will cause discomfort to the patient, and even if the patient is unconscious, the body will also have some stress reactions, which is easy Interfering with treatment can worsen the condition in severe cases. Contents of the invention [0003] In order to solve the deficiencies in the p...

Claims

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Application Information

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IPC IPC(8): A61M5/152
CPCA61M5/152
Inventor 王改王聪蕊徐小丹
Owner THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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