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Support fast-delivering-releasing module and support fast-delivering releaser

A releaser and fast technology, which is applied in the direction of stents, blood vessels, and devices with human tubular structures, etc., can solve the problems of poor safety and complicated release process of medical stents, and achieve the effect of high safety and simplified push and release process

Pending Publication Date: 2019-04-23
李卫校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a stent rapid delivery release module and a stent rapid delivery releaser to solve the technical problems of complicated medical stent release process and poor safety in the existing medical stent placement process

Method used

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  • Support fast-delivering-releasing module and support fast-delivering releaser
  • Support fast-delivering-releasing module and support fast-delivering releaser
  • Support fast-delivering-releasing module and support fast-delivering releaser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A stent delivery release module, see Figure 1-5 , including a stent delivery releaser and a medical stent 5.

[0028] The stent delivery release device includes a catheter 1 with a first tube 11 and a second tube 12, a channel expansion head 2 fixed at the front end of the catheter 1, a balloon 122 fixed on the catheter 1, and a movable outer sheath 4 sleeved on the catheter 1 .

[0029]see figure 1 , the first tube 11 can be set in the lumen of the second tube 12, preferably the outer wall of the first tube 11 and the second tube 12 are integrally formed into a coaxial double tube through the connection point, in other embodiments, the first The lumen of the tube 11 can also be arranged outside the lumen of the second tube 12, but at this time, the outer wall of the first tube 11 and the outer wall of the second tube 12 need to be fixedly connected together. On the whole, the cross section of the catheter is " 8" shape, but the radii of the first tube...

Embodiment 2

[0037] Embodiment 2: A stent delivery and release module. As an improvement of Embodiment 1, the following technical features are added in this embodiment.

[0038] A constriction 211 is formed in the guidewire introduction hole 21, and part of the inner wall of the constriction 211 can be attached to the guidewire 6, so that the constriction 211 and the guidewire 6 form a tight fit relationship. It is made of a material with a certain hardness, so the tight fit between the constriction 211 and the guide wire 6 does not affect the penetration of the guide wire 6 . Between the balloon 122 and the channel expansion head 2 , a contrast agent outflow hole 113 is provided on the tube wall of the first tube 11 . see Figure 3-4 , The constriction 211 is formed by a frusto-conical portion. With the help of the plug and the contrast agent outflow hole, when the contrast agent is injected into the first tube through the side port at the end of the first tube, it can be observed with ...

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Abstract

The invention discloses a support fast-delivering-releasing module and a support fast-delivering releaser. The support fast-delivering releaser comprises a conduit with a first pipe and a second pipe,a channel expanding head, a ball sac and a movable outer pin; a support limiting block is fixed on the conduit, and a support position is formed between the channel expanding head and the support limiting block; the ball sac is arranged in the support position and used for expanding a medical support, and the second pipe is communicated with the ball-sac inner space; the movable outer pin can slide front and back along the conduit and can sleeve the support limiting block and the ball sac so that when the movable outer pin sleeves the support position, a support compression cabin can be formed between the movable outer pin, the support limiting block and the channel expanding head; the medical support is sleeved with the support cabin, and is compressed into the support compression cabinby an outer movable outer pin, and the support limiting block can stop the medical support in the compression state to slide towards the back end of the support cabin. The support fast-delivering releaser has the advantages of being high in safety and convenient to operate and use. When contrast-agent flowing-out holes are not formed, the position of the front end of the support can also be conveniently observed during an operation, and positioning is more accurate.

Description

technical field [0001] The invention relates to a medical stent insertion device, in particular to a stent rapid delivery and release module and a stent rapid delivery releaser. Background technique [0002] Globally, liver cirrhosis is the fourth leading cause of death (non-communicable diseases) after tumors, cardiovascular diseases, and chronic lung diseases. In the past 20 years, the mortality rate caused by liver cirrhosis and liver cancer has increased by about 50000000. The reason is that liver disease has a strong compensatory function, and the onset of liver disease is hidden and asymptomatic. Patients with liver cirrhosis will show various decompensation symptoms only after they have developed to the decompensation stage. In decompensated cirrhosis, patients will develop esophageal and gastric varices. Once the varicose esophageal and gastric fundus veins rupture and bleed, severe gastrointestinal bleeding will occur. Gastrointestinal bleeding caused by liver c...

Claims

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Application Information

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IPC IPC(8): A61F2/958A61F2/966A61F2/07A61F2/91
CPCA61F2/07A61F2/91A61F2/958A61F2/966A61F2002/9665A61F2002/075A61F2002/077
Inventor 李卫校翟水亭
Owner 李卫校
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