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Inner-core-free thrombolytic catheter

A thrombolysis and catheter technology, applied in the field of medical thrombolysis catheters and coreless thrombolysis catheters, can solve the problems of increasing the bleeding risk of patients, increasing the medical expenses of patients, etc., achieving good thrombosis prevention, reducing space-occupying effect, The effect of preventing solidification

Pending Publication Date: 2018-03-13
SHANGHAI CHANGHAI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid this situation, clinically, the dosage of thrombolytic drugs is usually increased to prevent the formation of new thrombus, which not only increases the medical expenses of patients, but also increases the risk of bleeding of patients

Method used

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  • Inner-core-free thrombolytic catheter
  • Inner-core-free thrombolytic catheter
  • Inner-core-free thrombolytic catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 It is a structural schematic diagram of the coreless thrombolytic catheter of the present invention.

[0023] Such as figure 1 As shown, the coreless thrombolytic catheter 10 of the present invention (hereinafter referred to as the thrombolytic catheter) 10 has a tubular shape as a whole, and includes a connection end 4 , a delivery section 3 , a perfusion section 2 and a head end 1 in sequence.

[0024] The outer wall of the connection end 4 has a threaded structure for connecting with the drug delivery device; the delivery section 3 is used to deliver the thrombolytic drug pumped into the drug delivery device; the wall of the perfusion section 2 has a through structure for the thrombolytic drug to release. In this embodiment, the length of the perfusion section 2 is 30 cm, and the penetrating structure on the wall is a plurality of through holes formed by laser engraving; the outer diameter of the delivery section 3 and the perfusion section 2 is the same, ...

Embodiment 2

[0035] In the second embodiment, the same numbers are assigned to the same structures as those in the first embodiment, and the same descriptions are omitted.

[0036] In this embodiment, the total length of the thrombolysis catheter 10 is about 150 cm; the length of the perfusion section 2 is 30 cm, and the wall is provided with a penetrating crack structure formed by laser engraving. The outer diameters of the delivery section 3 and the perfusion section 2 are the same, which is 3F.

[0037] The application of the thrombolysis catheter of this embodiment will be described below with reference to the accompanying drawings.

[0038] image 3 It is a schematic diagram of the application of the coreless thrombolytic catheter according to the second embodiment of the present invention.

[0039] Such as image 3 As shown, the patient involved in this case was a patient with stenosis and thrombosis of the right femoropopliteal artery. Examination revealed that a large number of ...

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Abstract

The invention provides an inner-core-free thrombolytic catheter which is used for conveying thrombolytic medicine of medicine delivery equipment to the periphery of a thrombus for perfusion in catheter directed thrombolysis. The catheter is characterized by sequentially comprising a connecting end, a conveying section, a perfusion section and a head end, wherein the connecting end is provided witha threaded structure and is connected with the medicine delivery equipment; the conveying section is used for conveying the thrombolytic medicine; a penetrating structure is arranged on the wall of the perfusion section, and the perfusion section is used for pouring the thrombolytic medicine to the periphery of the thrombus; the head end is provided with a first closing piece and a second closingpiece, and the edges of the first closing piece and the second closing piece are attached to each other so that the head end can be sealed; heparin coatings are arranged on the outer walls of the conveying section, the perfusion section and the head end respectively. The thrombolytic catheter does not need to use an inner core, a finer outer diameter can be obtained, the catheter can be applied to a thinner blood vessel and can also reduce the mass effect, and new thrombi are prevented.

Description

technical field [0001] The invention belongs to the field of medical devices, and relates to a medical thrombolysis catheter, in particular to a coreless thrombolysis catheter. Background technique [0002] Catheter contact thrombolysis (catheter thrombolysis for short) is a method for the treatment of intravascular thrombus. Its mechanism is to infuse high-concentration thrombolytic drugs directly around the thrombus through the thrombolysis catheter to dissolve the thrombus and achieve the purpose of treatment. . Compared with traditional methods such as catheter thrombectomy, catheter thrombolysis does not require general anesthesia, the surgical trauma is also small, and it can also avoid repeated dragging of the catheter in the blood vessel and reduce damage to the blood vessel, so it is an ideal method. Thrombosis treatments. [0003] The thrombolytic catheter in the prior art is usually a sleeve type, including a catheter main body and a matching inner core. The cat...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61B17/22
CPCA61M25/0023A61M25/0045A61M25/0068A61M25/007A61B17/22A61B2017/22084A61M2025/0008A61M2025/0057
Inventor 袁良喜段现利董健包俊敏景在平
Owner SHANGHAI CHANGHAI HOSPITAL
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