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Blocking type intravenous infusion catheter device

A catheter device and intravenous infusion technology, applied in the direction of catheter, medical science, body balance valve, etc., can solve the problems of infusion catheter blood laser therapy, pipeline pollution, cumbersome process, etc.

Pending Publication Date: 2018-09-28
ZHEJIANG BAIHUO HEALTH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Treatments such as blood laser therapy cannot be performed using the infusion catheter during the indwelling period without drug infusion
[0011] When collecting blood samples from the infusion catheter, it is necessary to additionally flush the blood remaining in the lumen of the infusion catheter and the lumen of the infusion catheter adapter into the lumen of the vein. Usually, it is necessary to open the connecting tube joint and use a flushing syringe to operate. cumbersome and risk of pipeline contamination

Method used

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  • Blocking type intravenous infusion catheter device
  • Blocking type intravenous infusion catheter device
  • Blocking type intravenous infusion catheter device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] like Figure 4A , 4B , 4C, Embodiment 1 of the present invention includes: a rigid needle tube 11 for puncturing the skin and vein wall, a needle tube base 12 that fixes the needle tube bottom part 114 therein; the needle tube base 12 is connected with a needle tube base Handle 16, a flexible infusion catheter 14 made of materials such as PU, FEP, PTFE, and an infusion catheter adapter 15 that is sealingly connected to the bottom end 142 of the infusion catheter. The infusion catheter adapter 15 has a main body 151, The outer surface 154 of the infusion catheter adapter, the top 152 of the infusion catheter adapter is in sealing connection with the bottom end 142 of the infusion catheter, and there is a hollow infusion side branch 155 on the left side of the main body 151 of the infusion catheter adapter, which is connected with the connecting pipe 13, and the infusion side branch The lumen 150c communicates with the lumen 130 of the connecting tube, and the infusion s...

Embodiment 2

[0139] like Figure 5A , 5B As shown, in order to ensure that the spherical and capsule-shaped free blocking components 31 and 32 do not accidentally enter the venous lumen V0, at least a part of the tethering wire 5 is located in the infusion cavity, and one end of the tethering wire 5 is a connecting end 52 It is connected with spherical and capsule-shaped free blocking components 31 and 32 , and one end is a fixed end 51 , and the fixed end 51 of the tether wire 5 is relatively fixed to the infusion catheter holder 15 .

[0140] The infusion cavity refers to the space through which the fluid must or may pass, including the sealing plug front cavity 150a, the infusion side branch lumen 150c, the connecting tube lumen 130 connected with the infusion side branch 155, and the infusion catheter lumen 140 .

[0141] In this embodiment, the fixed end 51 of the tether wire 5 is located between the infusion side branch 155 and the connecting tube 13 .

[0142] The fixed end 51 of...

Embodiment 3

[0145] like Figure 6A , 6B As shown, the blocking component 3 shown in this embodiment is a guide wire 33 isolated from the outside and capable of blocking. , the top part 331 of the blocking guide wire 33 is used as the blocking part 30, the top part 331 of the blocking guide wire 33 can move along the lumen 140 of the infusion catheter to the opening 144 at the top of the infusion catheter and block it to prevent blood from entering the infusion Catheter lumen 140; at least the bottom end portion 332 of the blocking guide wire 33 is located in a thin film tubular flexible isolation member 61 made of materials such as silicone rubber, PU, ​​PE, CPP, PET, etc., and the isolation member lumen 60 is opened through its top end 610. The side branch lumen 1570 of the occluded guide wire communicates with the part of the infusion catheter hub lumen 150 that contacts the infusion fluid.

[0146] The occlusion guide wire 33 can be made of biocompatible materials such as PA, PU, ​​F...

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Abstract

The invention provides a blocking type intravenous infusion catheter device which comprises a rigid needle tube, a needle tube base, a flexible infusion catheter and an infusion catheter base, whereinthe rigid needle tube is used for piercing skin and vein walls; the bottom end of the needle tube is fixed in the needle tube base; the infusion catheter base is hermetically connected with the bottom end of the infusion catheter; the front end of the needle tube penetrates through a sealing plug and is positioned in the inner cavity of the infusion catheter; and the tip of the needle tube is exposed from an opening in the top end of the infusion catheter. The blocking type intravenous infusion catheter device is characterized by also comprising a movable blocking component which is externally isolated, at least the blocking part of the blocking component can enter the inner cavity of the infusion catheter through the inner cavity of the infusion catheter base under the driving of the external force, and the blocking part of the blocking component can move to the opening in the top end of the infusion catheter along the inner cavity of the infusion catheter and block the opening so asto prevent the blood from entering the inner cavity of the infusion catheter and simultaneously prevent the liquid medicine from entering veins.

Description

technical field [0001] The invention relates to a blocking type intravenous infusion catheter device, which belongs to the technical field of medical instruments. Background technique [0002] Venipuncture and associated intravenous infusion is the most commonly used general technique in various clinical departments. When the infusion time is long, flexible infusion catheters are most often used to indwell in the venous lumen. During the indwelling period, flexible infusion catheters eliminate The risk of puncturing the vein due to the rigid needle tip is avoided; however, during the indwelling period without drug solution injection, the local blood flow or blood stagnation in the infusion catheter and the opening can easily cause blood coagulation, even if positive pressure connectors, heparin Anticoagulant locking, saline flushing and other measures still cannot prevent the formation of thrombus in the lumen of the infusion catheter, and the detachment of thrombus will lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61M39/06A61B5/153
CPCA61M5/158A61M39/06A61B5/153A61M2005/1588A61M2205/3653A61M2039/062A61M2039/0633A61M25/0606A61M2025/0018A61M25/0017A61M25/0097
Inventor 董东生张薇王茹徐晓明张琳琳王晶
Owner ZHEJIANG BAIHUO HEALTH TECH CO LTD
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