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Hirudin anticoagulation tube sealing device for venous retention needle

A technique of venous indwelling needle and hirudin, applied in the field of medical devices, can solve the problems of limited research and clinical application, difficulty in obtaining a sufficient amount of pure product, lack of sources of leeches, etc. Effect

Inactive Publication Date: 2012-01-18
天津百新生物技术研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the cumbersome extraction steps of natural hirudin, the difficulty of raising leeches, and the lack of sources of leeches, it is difficult to obtain a sufficient amount of pure products, which limits research and clinical applications.

Method used

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  • Hirudin anticoagulation tube sealing device for venous retention needle
  • Hirudin anticoagulation tube sealing device for venous retention needle
  • Hirudin anticoagulation tube sealing device for venous retention needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] figure 1 It is a structural schematic diagram of the hirudin anticoagulant blood tube sealing device of the intravenous indwelling needle according to the first embodiment of the present invention. Such as figure 1 As shown, the hirudin anticoagulant blood tube sealing device of the intravenous indwelling needle of the first embodiment includes a sleeve 1 guided by a puncture needle and inserted into the vein, and a transparent three-piece transparent plug 3 connected to the built-in isolation sealing plug 3 at the rear end of the sleeve 1. 2 and the infusion connector 6 for connecting the infusion line or blood collection line.

[0047] One end of the transparent tee 2 is connected to the casing 1 , one end is sealed by an isolation sealing plug 3 , and the third end is connected to the infusion joint 6 through the extension tube 4 . The extension tube 4 is provided with a liquid stop card 5 . The cannula 1 is sleeved on the outside of the puncture needle 17 , and t...

Embodiment 2

[0054] figure 2 It is a schematic structural view of the intravenous indwelling needle according to the second embodiment of the present invention; image 3 It is a structural schematic diagram of the locking syringe of the second embodiment of the present invention. Such as figure 2 and image 3 As shown, the hirudin anticoagulant blood tube sealing device of the intravenous indwelling needle in the second embodiment includes the sleeve tube 1 guided by the puncture needle 17 and inserted into the vein, and the transparent three-piece transparent plug 3 connected to the built-in isolation sealing plug 3 at the rear end of the sleeve tube 1. 2 and the infusion connector 6 for connecting the infusion line or blood collection line.

[0055] One end of the transparent tee 2 is connected to the casing 1 , one end is sealed by an isolation sealing plug 3 , and the third end is connected to the infusion joint 6 through the extension tube 4 . The extension tube 4 is provided wi...

Embodiment 3

[0062] The hirudin anticoagulant blood tube sealing device for intravenous indwelling needles of the third embodiment of the present invention comprises a cannula inserted into the vein guided by a puncture needle, a transparent three-way connection with a built-in isolation sealing plug connected to the rear end of the cannula and used for The infusion connector for connecting the infusion line or the blood collection line.

[0063] One end of the transparent tee is connected with the casing, one end is sealed by an isolation sealing plug, and the third end is connected with the infusion joint through an extension tube. The infusion joint can adopt a single-lumen tube or a double-lumen tube. If a single-lumen tube is used, the free end of the single-lumen tube is sealed by a sealing end cap; if a double-lumen tube is used, two different drugs can be infused simultaneously, and the two ends of the double-lumen tube are respectively sealed by the first sealing end cap and the s...

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PUM

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Abstract

The invention discloses a hirudin anticoagulation tube sealing device for a venous retention needle, which comprises a sleeve, a transparent tee joint connected with the rear end of the sleeve, and a transfusion connector connected with a transfusion tube or a blood collecting tube; a connecting part connected with a tube sealing injector is arranged on the middle section of an extension tube; the tube sealing injector comprises a liquid tube in which a tube cavity is formed, a needle part connected with the front end of a sealed tube, and a shell which is sleeved outside the liquid tube and of which the rear end is sealed; a raised clamping wire is formed on the outer surrounding wall of the rear end of the liquid tube; a clamping groove is formed on the inner surrounding wall of the front end of the shell, and clamping steps at equal distance intervals are formed on the inner surrounding wall of the shell; and a sealing plug connected with the rear wall of the shell is arranged in the liquid tube. The hirudin anticoagulation tube sealing device for the venous retention needle can ensure the same amount of tube sealing liquid can be pushed in at each time and the tube sealing liquid can fully fill the tube cavity of the retention needle. The tube sealing liquid in the tube sealing injector is dilute solution of hirudin which has high anticoagulation effect and does not influence the test of the indexes of the serum in blood.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a hirudin anticoagulant blood tube sealing device for intravenous indwelling needles. Background technique [0002] In recent years, with the rapid development of medical science, intravenous indwelling needles that can reduce the pain of repeated punctures have been widely used in critically ill patients for rescue infusion, intravenous hypernutrition, and intermittent intravenous antibiotics or other drugs. Indwelling catheters include puncture needles and cannulas. After the puncture needle is inserted into the patient's vein with the cannula, the puncture needle is pulled out, the cannula remains in the body, and the outer end is connected to the infusion device or the blood collection device. The venous indwelling needle can not only be used for routine venous infusion, but also can be used for intermittent multiple blood collection, which not only avoids the pain c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/158A61B5/153
Inventor 刘晨刘金雪
Owner 天津百新生物技术研发有限公司
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