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Cartridge special for routine insulin of pen type insulin syringe

A technology of insulin and syringes, which is applied in the field of medical devices, can solve the problem of large remaining volume of pen cores, etc., and achieve the effect of simple implementation, significant economic effect, and reduced residual volume

Inactive Publication Date: 2009-06-24
关和瑜 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the existing pen-type insulin injector has a large amount of refill left after use when regular insulin is used, the present invention provides a special refill for regular insulin in a pen-type insulin injector. , the convex plunger coincides with the top of the refill bottle, filling the entire space

Method used

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  • Cartridge special for routine insulin of pen type insulin syringe
  • Cartridge special for routine insulin of pen type insulin syringe

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Experimental program
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Effect test

Embodiment Construction

[0009] figure 1 In the shown embodiment, the left and right sides are the comparison diagrams of the front and rear termination states of the improved convex plunger. The stop position of the original plunger (1) on the left side of the figure is the position after the pen-type insulin syringe pushes to the end of the stroke. It can be seen that The amount of original remaining insulin (2) is relatively large, and the right side of the figure is the state when the injection of the convex plunger is terminated. Since the convex shape of the channel-type convex plunger (5) is completely in line with the top of the insulin cartridge bottle (3), Same, only a certain distance is left between the top of the convex plunger and the mouth of the bottle to ensure that the plunger shoulder is in good contact and is the point where the bolus injection terminates. This method makes the amount of remaining insulin (4) very small after improvement .Due to the structural shape of the top of t...

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Abstract

The invention belongs to the field of medical apparatus, and relates to improvement of a general insulin special refill structure for a pen insulin syringe. Currently, when known pen insulin syringes are used for general insulin, refills still have abundant residual insulin after being used, thereby causing waste. When injection of an inner plunger of the refill of the pen insulin syringe stops, the convex plunger is tallied with the top of a refill bottle and fills the whole space. The invention has the advantages of capability of reducing the residual insulin in the refill of the general insulin refill, simple implementation and obvious economic benefit.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to an improvement of the special pen core structure of a pen-type insulin injector for conventional insulin. Background technique [0002] At present, when the known pen-type insulin injector is used for regular insulin, there is still a lot of insulin remaining in the pen core after use, resulting in waste. Because the pen core used in the pen type insulin injector has the same structure no matter it is used in conventional or suspension type. When the plunger is pushed to the end of the stroke, the suspension type insulin needs to leave a certain mixing space, and the regular type insulin has the same unnecessary space. In addition, the shape of the plane plunger in the refill cannot be consistent with the shoulder of the refill bottle. Matching, there is still a certain amount of space left, so when it is used for regular insulin, the remaining space is relatively large, and the r...

Claims

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Application Information

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IPC IPC(8): A61M5/31A61M5/315
Inventor 关和瑜关绍雷
Owner 关和瑜
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