A medicinal liquid injector and an enteral nutrition pump with the injector

A technology of enteral nutrition and nutrition pump, which is applied in the field of medical devices, can solve the problems of not advocating rapid drug injection, physical exhaustion of medical staff, difficulty in controlling the speed, etc., and achieve the effect of simplifying the operation of injecting drug solution

Active Publication Date: 2022-07-19
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

There are some shortcomings in the above methods: different components of the liquid medicine and patients with different conditions have different requirements for the injection speed of the liquid medicine, especially fast injection is not advocated, if slow injection is required, when the injection operation is performed manually, On the one hand, the speed is difficult to control; on the other hand, it will cause a lot of physical damage to the medical staff, and it will take a lot of time for the medical staff to perform slow injections.

Method used

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  • A medicinal liquid injector and an enteral nutrition pump with the injector
  • A medicinal liquid injector and an enteral nutrition pump with the injector
  • A medicinal liquid injector and an enteral nutrition pump with the injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 Shown: a liquid medicine injector, including a liquid storage cylinder 1, a piston 2, a needle 3 and a push rod 4, the needle 3 is arranged at the head end of the liquid storage cylinder 1, and the piston 2 is arranged on the liquid storage cylinder 1 Inside, the head end of the push rod 4 is connected with the piston 2, and the other end is protruded from the tail end of the liquid storage cylinder 1. The above structure is the same as that of the traditional syringe. The difference is that the rear end of the push rod 4 is provided with a first transmission tooth 5, which is used to transmit external force, and finally causes the push rod 4 to perform axial displacement to complete the injection work. In this embodiment, the outer wall of the liquid storage cylinder 1 is rectangular, and the advantage of the rectangular outer wall is that it is not easy to turn over, because when the first transmission tooth 5 transmits the force with the external force,...

Embodiment 2

[0037] like figure 2 Shown: a liquid medicine injector, including a liquid storage cylinder 1, a piston 2, a needle 3 and a push rod 4, the needle 3 is arranged at the head end of the liquid storage cylinder 1, and the piston 2 is arranged on the liquid storage cylinder 1 Inside, the head end of the push rod 4 is connected with the piston 2 , and the other end extends from the tail end of the liquid storage cylinder 1 . The above structure is no different from the traditional syringe structure. The tail end of the push rod 4 is provided with a first transmission tooth 5 . Different from Embodiment 1, the outer cylinder wall of the liquid storage cylinder 1 is circular, and the outer wall of the liquid storage cylinder 1 is provided with a positioning head 6. The function of the positioning head 6 is to prevent the liquid storage cylinder 1 from being injected during the injection process. Inversion occurs during the injection process, which affects the injection effect. This...

Embodiment 3

[0039] like image 3 Shown: an enteral nutrition pump, including a nutrition pump body, the nutrition pump body has a pump casing 7, a pump wheel 8 and a pump tube 9, and the pump wheel 8 is driven by a coaxially arranged drive wheel 10 to rotate. The nutrition pump body also has a placement cavity 11 that can be installed with the liquid medicine injector in Embodiment 1 or 2, the pump tube 9 has a rubber stopper 12 for the needle 3 of the liquid medicine injector to pass through, and the drive wheel 10 also drives The power wheel 13 is connected, and the power wheel 13 is provided with a second transmission tooth 14 in the circumferential direction. 5 segments of a transmission tooth are meshed, and the rotation of the power wheel 13 is converted into a linear motion of the push rod 4 to complete the injection of the medicinal liquid.

[0040]The basic structure of the nutrition pump body is the structure of the existing enteral nutrition pump. In order to meet the needs of...

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Abstract

A medicinal liquid injector and an enteral nutrition pump with the injector, the medicinal liquid injector comprises a liquid storage cylinder, a piston, a needle and a push rod, the needle is arranged at the head end of the liquid storage cylinder, and the piston is arranged Inside the liquid storage cylinder, the head end of the push rod is connected with the piston, and the other end extends from the tail end of the liquid storage cylinder, and the tail end of the push rod is provided with a first transmission tooth. The enteral nutrition pump includes a nutrition pump body, the nutrition pump body has a pump casing, a pump wheel and a pump tube, the pump wheel is driven to rotate by a coaxially arranged driving wheel, and the nutrition pump body also has a place where the above-mentioned medicinal liquid injector can be installed cavity. The enteral nutrition pump of the present invention utilizes the power of the pump wheel to drive the injection of the liquid medicine injector, can realize the slow injection of the liquid medicine without additional power, and can greatly simplify the injection of medicine in the process of enteral nutrition supply. liquid operation.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medicinal liquid injector and an enteral nutrition pump having the injector. Background technique [0002] Medically, hospitalized patients with common severe diseases such as major surgery, severe acute pancreatitis, severe trauma, acute physiology and chronic health score II are at risk of severe malnutrition. The metabolic response during the stress period in critically ill patients can lead to rapid consumption of lean body tissue, resulting in damage to visceral function, and a significant decline in repair function and immune function. After severe stress, the metabolic rate of the body is significantly increased, the weight loss is average, and malnutrition occurs. Several randomized controlled trials (RCTs) and systematic reviews have proved that early nutritional support can help improve the clinical outcomes of critically ill patients, and early nutritional s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/145A61J15/00
CPCA61M5/1452A61J15/00
Inventor 高薇梁硕刘秀勤
Owner THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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