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Liquid medicine injector and enteral nutrition pump with liquid medicine injector

An enteral nutrition and injector technology, applied in the field of medical devices, can solve the problems of not advocating rapid drug injection, physical loss of medical staff, occupation of medical staff, etc., and achieve the effect of simplifying the operation of adding liquid medicine

Active Publication Date: 2021-07-13
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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  • Liquid medicine injector and enteral nutrition pump with liquid medicine injector
  • Liquid medicine injector and enteral nutrition pump with liquid medicine injector
  • Liquid medicine injector and enteral nutrition pump with liquid medicine injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as 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 set at the head end of the liquid storage cylinder 1, and the piston 2 is set at the liquid storage cylinder 1 Inside, the head end of the push rod 4 is connected to the piston 2, and the other end protrudes from the tail end of the liquid storage cylinder 1. The above-mentioned structure is the same as that of a traditional syringe. The difference is that: the tail end of the push rod 4 is provided with a first transmission tooth 5, and the first transmission tooth 5 is used to transmit external force, and finally make the push rod 4 move axially to complete the injection work. The outer cylinder wall of the liquid storage cylinder 1 in this embodiment is rectangular, and the advantage of the outer wall being a rectangular cylinder is that it is not easy to overturn, because, when the first transmission gear 5 transmits for...

Embodiment 2

[0037] Such as 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 set at the head end of the liquid storage cylinder 1, and the piston 2 is set at the liquid storage cylinder 1 Inside, the head end of the push rod 4 is connected with the piston 2, and the other end protrudes 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 . The difference from Example 1 is that the outer 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. Flip occurs during the injection process, which affects the injection effect. Through this emb...

Embodiment 3

[0039] Such as 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 to rotate by a coaxially arranged drive wheel 10. The nutritional pump body also has a placement chamber 11 where the medicinal liquid injector in Embodiment 1 or 2 can be installed, the pump tube 9 has a rubber plug 12 that can pass through the needle 3 of the medicinal liquid injector, and the driving wheel 10 also drives A power wheel 13 is connected, and the circumferential direction of the power wheel 13 is provided with a second transmission tooth 14. After the liquid medicine injector is placed in the placement cavity 11, the second transmission tooth 14 on the power wheel 13 can be connected with the first transmission tooth 14 on the push rod 4. 5 sections of a transmission gear are meshed to convert the rotation of the power wheel 13 into the linear motion of the push r...

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Abstract

The invention provides a liquid medicine injector and an enteral nutrition pump with the liquid medicine injector, the liquid medicine 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, the piston is arranged in the liquid storage cylinder, the head end of the push rod is connected with the piston, the other end of the push rod extends out of the tail end of the liquid storage cylinder, and a first transmission gear is arranged at the tail end of the push rod. The enteral nutrition pump comprises a nutrition pump body, the nutrition pump body is provided with a pump shell, a pump wheel and a pump pipe, the pump wheel is driven by a driving wheel which is coaxially arranged to rotate, and the nutrition pump body is further provided with a containing cavity where the liquid medicine filling device can be installed. According to the enteral nutrition pump, the injection of the liquid medicine injector is driven by the power of the pump wheel, the slow injection of the liquid medicine can be realized without additional power, and the operation of injecting the liquid medicine in the enteral nutrition supply process can be greatly simplified.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a liquid medicine injector and an enteral nutrition pump with the injector. Background technique [0002] In medicine, 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 of critically ill patients can lead to a sharp 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 body's metabolic rate increased significantly, weight loss averaged, and malnutrition occurred. A number of randomized controlled trials (RCTs) and systematic reviews have proved that early nutritional support can help improve the clinical outcomes of critically ill patients, starting 24 to 48 hours after ...

Claims

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Application Information

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Patent Type & Authority Applications(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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