CN219049768U

CN219049768U - Aortic cannula device for extracorporeal circulation of heart operation

Info

Publication number: CN219049768U
Application number: CN202222343143.5U
Authority: CN
Inventors: 刘一为; 董卫; 蒋琪; 郁夏风; 刘旭; 孙彦隽; 张海波; 张�浩
Original assignee: Shanghai Childrens Medical Center Affiliated to Shanghai Jiaotong University School of Medicine
Current assignee: Shanghai Childrens Medical Center Affiliated to Shanghai Jiaotong University School of Medicine
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-05-23
Anticipated expiration: 2032-09-02

Abstract

The utility model relates to the technical field of medical equipment, in particular to an aortic cannula device for extracorporeal circulation of heart surgery, which is used for being inserted into an ascending aorta, wherein the aortic cannula device comprises a cannula, the lower end of the cannula is connected with a water bag, and a first imbedding pipe, a second imbedding pipe and a filling pipe are arranged in the water bag on the lower end surface of the cannula; the device comprises a cannula, a first implantation tube, a second implantation tube, a water sac wall body, a protective liquid filling cavity, a first implantation tube and a filling tube.

Description

Aortic cannula device for extracorporeal circulation of heart operation

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an aortic cannula device for extracorporeal circulation of heart operation.

Background

The extracorporeal circulation is one of the necessary auxiliary operations in the heart operation, and mainly comprises the steps of suturing and placing a cannula at the distal end of an aorta, pumping blood in an extracorporeal circulation machine into the aorta through the cannula, suturing and placing a perfusion needle at the proximal end of the aorta, injecting myocardial protection liquid to stop the heart, blocking the cannula and the perfusion needle through a blocking clamp, and completing the extracorporeal circulation operation; in the pediatric heart operation, as the aortic artery of the infant is short, there is no aortic cannula which can be used for operation and perfusion, blocking and myocardial protection liquid perfusion, thus limiting the operation in the operation of cardiac surgeons.

To solve the above technical problems, chinese patent CN205460387U discloses an aortic cannula device for extracorporeal circulation, comprising a cannula, an aortic perfusion needle and a blocking balloon, the cannula being a cannula bundle composed of a main tube and a secondary tube; the main pipe is a single pipeline formed by an aortic cannula, and the auxiliary pipe is a double pipeline formed by an aortic perfusion needle and a blocking device filling needle; the intubation bundle formed by the main tube and the auxiliary tube is utilized, so that only one purse is needed to be sutured at the ascending aorta when the stereoscopic external circulation is established, and the operation of doctors is greatly simplified; however, the utility model requires the integration of the various components, and for this reason the overall diameter of the intubation device is too large to be used in pediatric cardiac surgery.

Therefore, the aortic cannula device for the extracorporeal circulation of the heart operation is provided, the components such as perfusion, blocking and myocardial protection liquid perfusion in the extracorporeal circulation operation are integrated, the whole diameter of the aortic cannula is reduced, and the application range is improved, which is required by the person skilled in the art.

Disclosure of Invention

The utility model aims to provide an aortic cannula device for extracorporeal circulation of heart surgery, which solves the technical problem that in the prior art, due to the fact that the aorta of an infant is short, there is no aortic cannula which can be used for surgery and perfusion, blocking and myocardial protection liquid perfusion into a whole, and the operation in the surgery of a heart surgeon is limited.

The technical scheme adopted for solving the technical problems is as follows: the aortic cannula device for extracorporeal circulation of heart operation is used for being inserted into an ascending aorta, and comprises a cannula, wherein the lower end of the cannula is connected with a water sac, and a first imbedding pipe, a second imbedding pipe and a filling pipe are arranged in the water sac on the lower end surface of the cannula; the device comprises a cannula, a first implantation tube, a second implantation tube, a water sac wall body, a protective liquid filling cavity, a first implantation tube and a filling tube.

Further, the upper end face of the cannula is uniformly connected with an aortic perfusion tube, a filling material perfusion tube and a myocardial protection liquid perfusion tube, the aortic perfusion cavity is communicated with the aortic perfusion tube, the protection liquid perfusion cavity is communicated with the myocardial protection liquid perfusion tube, and the filling material perfusion cavity is communicated with the filling material perfusion tube.

Further, the first implantation tube is horizontally arranged in the ascending aorta, the second implantation tube is horizontally arranged in the ascending aorta, and the first implantation tube and the second implantation tube are oppositely arranged.

Further, the water bag is hollow cylindrical, and the first imbedding pipe and the second imbedding pipe are fixedly connected to the water bag.

Further, the first and second insertion tubes are located at both ends of the filling tube, respectively, and the first insertion tube is farther from the heart than the second insertion tube.

Further, the ends of the first implantation tube and the second implantation tube, which are positioned in the ascending aorta, are arc-shaped.

Further, the cannula is cylindrical, a partition plate is arranged in the cannula, the partition plate is in a herringbone shape, and the partition plate partitions the aortic infusion cavity, the filling material infusion cavity and the protection liquid infusion cavity.

Further, the cross sections of the filling material filling cavity, the aorta filling cavity and the protection liquid filling cavity are in a sector shape.

Further, the aortic perfusion tube is internally used for injecting blood, the myocardial protection liquid perfusion tube is internally used for injecting myocardial protection liquid, and the filling material perfusion tube is internally used for injecting normal saline.

The beneficial effects of the utility model are as follows:

the utility model structurally integrates the cannula, the cannula inserted into the aorta is arranged into a cavity structure, the overall diameter of the cannula is reduced, and then the opening of a doctor on the aorta is reduced, the damage of a patient is effectively reduced, and the device is suitable for shorter aorta of children; compared with the prior art, the utility model only needs to suture one purse in the aorta, and the single and fixed purse can effectively simplify the process of establishing and evacuating the extracorporeal circulation operation, thereby improving the operation portability of doctors.

Drawings

Fig. 1 is a perspective view of an aortic cannula device for extracorporeal circulation of cardiac surgery according to the present utility model.

Fig. 2 is an exploded schematic view of an aortic cannula device for extracorporeal circulation of cardiac surgery according to the present utility model.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a cross-sectional view taken along A-A in fig. 3.

Fig. 5 is a cross-sectional view taken along B-B in fig. 3.

Fig. 6 is a front view of an aortic cannula device for extracorporeal circulation of cardiac surgery according to the present utility model.

Fig. 7 is a cross-sectional view taken along line C-C in fig. 6.

Fig. 8 is an exploded view of the aortic cannula device for extracorporeal circulation of cardiac surgery (to be used state) according to the present utility model.

The components in the drawings are marked as follows: 10. a cannula; 101. the aorta perfuses the cavity; 102. filling the cavity with a filler; 103. filling the cavity with a protective liquid; 104. a partition plate; 11. an aortic perfusion tube; 12. filling a pipe with a filler; 13. a myocardial protective liquid perfusion tube; 15. a water bag; 16. a first insertion tube; 17. a second insertion tube; 18. a filling tube; 20. ascending aorta.

Detailed Description

The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.

Referring to fig. 1 and 2, the utility model provides an aortic cannula device for extracorporeal circulation of heart surgery, which is used for being inserted into an ascending aorta 20, the aortic cannula device comprises a cannula 10, the cannula 10 is in a cylindrical tube shape, an aortic perfusion tube 11, a filler perfusion tube 12 and a myocardial protection liquid perfusion tube 13 are uniformly connected to the upper end surface of the cannula 10, a water bag 15 is connected to the lower end of the cannula 10, and a first imbedding tube 16, a second imbedding tube 17 and a filling tube 18 are arranged on the lower end surface of the cannula 10 and positioned in the water bag 15.

Preferably, the first insertion tube 16 is disposed opposite to the second insertion tube 17; the most distal ends of the first and

second insertion tubes

16 and 17 respectively penetrate through the wall of the water bladder 15 in opposite directions and extend to the outside of the water bladder 15.

Referring to fig. 3, 4, 5 and 8, the aortic infusion tube 11 is connected to the first implantation tube 16, the filling material infusion tube 12 is connected to the filling tube 18, and the myocardial preservation solution infusion tube 13 is connected to the second implantation tube 17.

Further, the aortic perfusion tube 11 is used for injecting blood, the myocardial preservation solution perfusion tube 13 is used for injecting myocardial preservation solution, and the filler perfusion tube 12 is used for injecting physiological saline.

Specifically, the water bag 15 is in a hollow cylindrical shape, the end part of the insertion tube 10 with the filling tube 18 passes through the wall body of the water bag 15 and is fixedly connected in the water bag 15, and the filling tube 18 is communicated with the cavity inside the water bag 15. In a normal state, the water bag 15 is in a shrunken state, and when in use, the filling material filling pipe 12 is filled with physiological saline, and the physiological saline passes through the cannula 10 and then is sprayed out of the filling pipe 18 and is filled into the water bag 15.

It is to be understood that the water bag 15 is made of rubber, and when the physiological saline is filled in the water bag 15, the volume of the water bag 15 is expanded, and the high toughness of the rubber is utilized to ensure the use stability.

The utility model opens on the ascending aorta 20, one end of the cannula 10 with the water sac 15 is placed in the ascending aorta 20, physiological saline is filled in the water sac 15 to expand the water sac 15, the water sac 15 is utilized to block the ascending aorta 20, the mutual dissolubility between blood and myocardial protection liquid is ensured, meanwhile, the water sac 15 is fixed at the place placed in the ascending aorta 20, the dissociation of equipment in the gap between the ascending aorta and the pulmonary artery is effectively reduced, the mediastinum adhesion caused by excessive dissection dissociation operation is avoided, and the bleeding is prevented, meanwhile, the utility model only needs to stitch a purse in the ascending aorta 20, and the single and fixed purse placement can effectively simplify the process of establishing and evacuating extracorporeal circulation operation, and improve the operation portability of doctors.

Further, one end of the first implantation tube 16 passes through the wall of the water sac 15 and extends into the ascending aorta 20, and the other end of the first implantation tube 16 is fixedly connected to the cannula 10 and is communicated with the cannula 10.

Further, one end of the second imbedding tube 17 passes through the wall of the water sac 15 and extends into the ascending aorta 20, and the other end of the second imbedding tube 17 is fixedly connected to the cannula 10 and is communicated with the cannula 10.

Specifically, the first implantation tube 16 and the second implantation tube 17 are respectively located at two ends of the filling tube 18, and during operation, since the ascending aorta 20 is connected with the heart, a doctor needs to make the first implantation tube 16 far away from the heart compared with the second implantation tube 17 during implantation, so as to ensure that the infusion is successful.

Preferably, the ends of the first and

second insertion tubes

16 and 17 located in the ascending aorta 20 are arc-shaped.

Preferably, the first insertion tube 16 is disposed horizontally in the ascending aorta 20, and the second insertion tube 17 is disposed horizontally in the ascending aorta 20.

When in use, blood is injected into the aortic perfusion tube 11, the blood passes through the cannula 10 and enters the first implantation tube 16, myocardial protection liquid is injected into the myocardial protection liquid perfusion tube 13, the myocardial protection liquid passes through the cannula 10 and enters the second implantation tube 17, and as the injection port of the first implantation tube 16 is far away from the heart and the injection port of the second implantation tube 17 is close to the heart, after the blood is injected into the aorta from the first implantation tube 16, the blood flows into other parts of the human body to supply oxygen to organs of the whole body, and myocardial protection liquid is injected into the heart after the myocardial protection liquid is injected into the aorta from the second implantation tube 17, so that the blocked heart muscle cells remain active and myocardial cell ischemia necrosis is avoided.

It can be appreciated that the first insertion tube 16 and the second insertion tube 17 are hoses made of soft rubber, and are fixedly connected to the water bag 15, so that the first insertion tube 16, the second insertion tube 17 and the water bag 15 form a whole, and the installation portability is ensured; soft steel wires are embedded in the tube bodies of the first imbedding tube 16 and the second imbedding tube 17, so that good plasticity of the first imbedding tube 16 and the second imbedding tube 17 is guaranteed, and when the portable type solar cell is used, the tube body directions of the first imbedding tube 16 and the second imbedding tube 17 can be directly and manually adjusted, so that the installation portability is further improved.

Referring to fig. 6 and 7, a v-shaped partition plate 104 is formed in the cannula 10, and the partition plate 104 partitions the cavity in the cannula 10 into a filling material filling cavity 102, an aortic filling cavity 101 and a protecting liquid filling cavity 103.

Further, referring to fig. 5 and 7, the upper end of the aortic perfusion cavity 101 is connected to the aortic perfusion tube 11, and the lower end of the aortic perfusion cavity 101 is connected to the first implantation tube 16; the upper end of the protecting liquid filling cavity 103 is communicated with the myocardial protecting liquid filling pipe 13, and the lower end of the protecting liquid filling cavity 103 is communicated with the second imbedding pipe 17.

Further, referring to fig. 4 and 7, the upper end of the filling cavity 102 is connected to the filling tube 12, and the lower end of the filling cavity 102 is connected to the filling tube 18.

Preferably, the filling material filling cavity 102, the aorta filling cavity 101 and the protecting liquid filling cavity 103 have sector-shaped cross sections.

According to the utility model, the cannula 10 inserted into the ascending aorta 20 is arranged into a cavity structure, so that the overall diameter of the cannula 10 is reduced, the opening of a doctor on the ascending aorta 20 can be further reduced, the damage of a patient is effectively reduced, and the device is suitable for shorter aorta of children; due to the structural integration of the entire cannula 10, a sufficient operation space is also provided for subsequent surgical operations, improving the operation field of view of the surgeon, and simplifying the operation steps.

In another embodiment, the insertion tube 10 is in a cylindrical structure, three through holes are formed in the insertion tube 10 along the axial direction, the upper ends of the three through holes are respectively connected with an aortic infusion tube 11, a filler infusion tube 12 and a myocardial preservation solution infusion tube 13, the lower ends of the three through holes are respectively connected with a first implantation tube 16, a filler tube 18 and a second implantation tube 17, the aortic infusion tube 11 is communicated with the first implantation tube 16, the filler infusion tube 12 is communicated with the filler tube 18, and the myocardial preservation solution infusion tube 13 is communicated with the second implantation tube 17; therefore, the intubation and infusion of the ascending aorta 20 are realized, the opening of a doctor on the ascending aorta 20 is reduced, the damage of a patient is effectively reduced, and the device is suitable for shorter aorta of children.

The specific application mode of the utility model is as follows: a pouch is sutured on the ascending aorta 20, one end of the cannula 10 with the water sac 15 is placed in the ascending aorta 20, the injection port of the first placement tube 16 is located at the telecentric end, the injection port of the second placement tube 17 is located at the proximal end, the water sac 15 is in a collapsed state, physiological saline is filled in the water sac 15 to expand the water sac 15, the water sac 15 is utilized to block the ascending aorta 20, blood is injected into the first placement tube 16 to supply oxygen to organs of the whole body, myocardial protection liquid is injected into the second placement tube 17 to protect the activity of heart muscle cells, and extracorporeal circulation operation is completed.

The utility model structurally integrates the intubation tube 10, and the intubation tube 10 inserted into the ascending aorta 20 is arranged into a cavity structure, so that the overall diameter of the intubation tube 10 is reduced, the opening of a doctor on the ascending aorta 20 can be further reduced, the damage of a patient can be effectively reduced, and the utility model is applicable to shorter aorta of children; the utility model only needs to suture a purse in the ascending aorta 20, and the single and fixed purse can effectively simplify the process of establishing and evacuating the extracorporeal circulation operation, thereby improving the operation portability of doctors.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The aortic cannula device for extracorporeal circulation of heart surgery is used for being inserted into an ascending aorta (20), and is characterized by comprising a cannula (10), wherein the lower end of the cannula (10) is connected with a water bag (15), and a first imbedding pipe (16), a second imbedding pipe (17) and a filling pipe (18) are arranged in the water bag (15) on the lower end surface of the cannula (10);

the utility model discloses a catheter, including cannula (10) and catheter, be formed with aorta and pour cavity (101), filler and pour cavity (102) and protection liquid and pour cavity (103) in cannula (10), first implantation pipe (16) one end is passed water pocket (15) wall and is extended into in ascending aorta (20), and first implantation pipe (16) other end intercommunication aorta fills cavity (101), second implantation pipe (17) one end is passed water pocket (15) wall and is extended into in ascending aorta (20), and second implantation pipe (17) other end intercommunication protection liquid fills cavity (103), filling pipe (18) are located water pocket (15) and intercommunication filler and pour cavity (102).

2. The aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 1, wherein an aortic perfusion tube (11), a filler perfusion tube (12) and a myocardial protection liquid perfusion tube (13) are uniformly connected to the upper end surface of the cannula (10), the aortic perfusion cavity (101) is communicated with the aortic perfusion tube (11), the protection liquid perfusion cavity (103) is communicated with the myocardial protection liquid perfusion tube (13), and the filler perfusion cavity (102) is communicated with the filler perfusion tube (12).

3. The aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 1, wherein the first insertion tube (16) is horizontally disposed in the ascending aorta (20), the second insertion tube (17) is horizontally disposed in the ascending aorta (20), and the first insertion tube (16) and the second insertion tube (17) are disposed opposite to each other.

4. An aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 3, wherein the water bag (15) is hollow cylindrical, and the first insertion tube (16) and the second insertion tube (17) are fixedly connected to the water bag (15).

5. Aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 4, characterized in that the first and second insertion tubes (16, 17) are located at both ends of the filling tube (18), respectively, the first insertion tube (16) being further away from the heart than the second insertion tube (17).

6. The aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 1, wherein the ends of the first and second insertion tubes (16, 17) located in the ascending aorta (20) are arc-shaped.

7. The aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 1, wherein the cannula (10) is in a cylindrical tube shape, a partition plate (104) is arranged in the cannula (10), the partition plate (104) is in a shape of a figure, and the partition plate (104) partitions the aortic perfusion cavity (101), the filler perfusion cavity (102) and the protection liquid perfusion cavity (103).

8. Aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 7, characterized in that the filling material perfusion cavity (102), the aortic perfusion cavity (101) and the protection fluid perfusion cavity (103) have a sector-shaped cross section.

9. Aortic cannula device for extracorporeal circulation of cardiac surgery according to claim 2, characterized in that the aortic perfusion tube (11) is used for injecting blood, the myocardial protection liquid perfusion tube (13) is used for injecting myocardial protection liquid, and the filler perfusion tube (12) is used for injecting physiological saline.