Carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application

A carotid artery and axillary artery technology, which is used in carotid artery and axillary artery cannulation and application fields, can solve problems such as difficult to achieve blood flow distribution and pressure regulation, easy damage to axillary artery subclavian vein, right common carotid artery ischemia, etc. problems, to achieve the effect of reducing limb ischemia time, shortening operation time, and reducing blood damage

Inactive Publication Date: 2014-12-24
黄强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology usually uses a straight intubation tube with a length of 20 cm, one end of which is connected to the artificial heart-lung machine arterial perfusion tube, and the other end is inserted into the right axillary artery. Because the right axillary artery is located deep, it is difficult to expose and intubate, and it is easy to damage the axillary artery. Arteries, subclavian veins, axillary nerves, etc., the operation is more difficult
Moreover, during the operation, the patient’s right upper limb at the distal end was always in an ischemic state due to the intubation facing the proximal end; an artificial blood vessel with a diameter of 8 mm was used, one end was connected to the arterial perfusion tube of the artificial heart-lung machine, and the other end had to be sutured to the right axillary artery Or the right common carotid artery, and it takes 10 minutes or more to suture the artificial blood vessel, which may lead to ischemia of the right common carotid artery, which may cause irreversible ischemic brain damage in some patients
The disadvantage of the suture method can also lead to blood leakage from the anastomosis during heparinization; in addition, the arterial perfusion of different parts must use their own proprietary straight cannula or artificial blood vessel, which cannot be used universally. Inability or difficulty with cannulation for blood flow distribution and pressure regulation as needed

Method used

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  • Carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application
  • Carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application
  • Carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application

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Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 , the simplest structure of the present invention includes the cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch short tubes with shunt and partial pressure that communicate with the cannula main body 1—the proximal end tube 2 and the The distal end tube 3 is a medical perfusion plastic tube with a T-shaped structure on the overall structure. The internal diameters are all taken as 8mm, and the ends of the above-mentioned proximal end tube 2 and distal end tube 3 form a 45° oblique opening 5 to facilitate intubation.

[0043] Usually, the length of the main body of the cannula is 20 cm, and the proximal end tube 2 and the distal end tube 3 are 1.5 cm and 1.0 cm, respectively.

Embodiment 2

[0045] Such as Figure 4 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes a proximal end tube 2 and a distal end tube 3 communicating with the cannula main body 1, and the three are medical plastics with a Y-shaped structure on the same plane tube, and the proximal tube 2 and the cannula main body 1 at the blood supply end form an angle of 120°, that is, Q is an angle of 60° to reduce blood flow resistance and pump pressure, thereby ensuring perfusion flow and reducing blood damage.

Embodiment 3

[0047] Such as image 3 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch tubes that communicate with the cannula main body 1 and have a shunt and a partial pressure effect—a proximal end tube 2 and a distal end tube 3, forming The perfusion plastic tube for medical extracorporeal circulation with a T-shaped or Y-shaped structure in the overall structure, and the above-mentioned perfused plastic tube with a T-shaped or Y-shaped structure in the overall structure, its proximal end tube 2 and distal end tube The ends of 3 can be spherical crowns with side holes, and there are 6 symmetrically arranged side holes, and it is ensured that the total area of ​​each side hole is greater than the maximum opening area of ​​the intubation tube main body 1.

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Abstract

The invention relates to a carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application. The carotid artery and arteria axillaris cannula comprises a cannula body at the blood supply end and is characterized by further comprising a proximal end tube, a far-heart end tube and an extracorporeal circulation and infusion plastic tube of a T or Y type structure, the proximal end tube and the far-heart end tube are communicated with the cannula body and have the flow and pressure dividing function, the extracorporeal circulation and infusion plastic tube is formed on an overall structure, and the proximal end tube of the Y-type infusion tube and the cannula body at the blood supply end form an included angle to distribute or adjust the infusion blood flow. The carotid artery and arteria axillaris cannula is used for the arteria carotis communis on the right side to achieve whole-body arterial perfusion and deep hypothermic circulatory arrest selective cerebral perfusion in the extracorporeal circulation period. The arteria axillaris on the right side achieves whole-body arterial perfusion and deep hypothermic circulatory arrest selective cerebral perfusion in the extracorporeal circulation period. Meanwhile, the upper right limb is prevented from ischemia. Obviously, the carotid artery and arteria axillaris cannula can achieve distribution and adjustment of the perfusion blood flow, and is convenient to operate and high in practicality, operation time is greatly shortened, therefore, the brain or limb ischemia time is reduced, the success rate of aortic arch surgery is improved, and the carotid artery and arteria axillaris cannula can be widely applied.

Description

[0001] technology field. [0002] The invention relates to the field of medical devices, in particular to a carotid artery and axillary artery catheterization and its application which can reduce the ischemia time of the brain or limbs. Background technique [0003] The existing technology usually uses a straight intubation tube with a length of 20 cm, one end of which is connected to the artificial heart-lung machine arterial perfusion tube, and the other end is inserted into the right axillary artery. Because the right axillary artery is located deep, it is difficult to expose and intubate, and it is easy to damage the axillary artery. Arteries, subclavian veins, and axillary nerves are more difficult to operate. Moreover, during the operation, the patient’s right upper limb at the distal end was always in an ischemic state due to the intubation facing the proximal end; an artificial blood vessel with a diameter of 8 mm was used, one end was connected to the arterial perfusi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/14
Inventor 黄强朱蕾黄晓
Owner 黄强
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