CN214856989U - Negative pressure suction catheter for grabbing left auricle - Google Patents
Negative pressure suction catheter for grabbing left auricle Download PDFInfo
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- CN214856989U CN214856989U CN202120723199.6U CN202120723199U CN214856989U CN 214856989 U CN214856989 U CN 214856989U CN 202120723199 U CN202120723199 U CN 202120723199U CN 214856989 U CN214856989 U CN 214856989U
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- negative pressure
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- atrial appendage
- left atrial
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Abstract
The utility model relates to the field of medical equipment, in particular to a negative pressure suction catheter for snatching left auricle. The utility model discloses a negative pressure suction catheter for snatching left auricle includes the pipe, the pipe is inside to be equipped with mutually independent negative pressure chamber along its tube length and says and the air current chamber says, the one end parcel of pipe be equipped with the shutoff sacculus of air current chamber way intercommunication, the pipe other end be equipped with respectively with the air inlet/outlet interface and the negative pressure interface that negative pressure chamber says and says the intercommunication with the air current chamber, the negative pressure chamber says and extends pipe one end is outside, and passes the shutoff sacculus to form the negative pressure suction inlet in port department. The advantages are that: structural design is reasonable, through the device can be quick snatch left atrial appendage in left atrial appendage ligation, no thorn damage reaches the risk of bleeding, and the security is high.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a negative pressure suction catheter for snatching left auricle.
Background
The left auricle is a long and narrow tubular blind cavity with irregular shape, has a plurality of sections of tortuosity, has the size equivalent to that of a thumb, and has an opening with the size of 10 mm-40 mm. The left auricle has abundant pectinate muscles and musculature, so the blood flow in the left auricle is easy to generate vortex and the flow speed is slow, and the left auricle is a good part for forming thrombus.
Studies have shown that 60% of patients with rheumatic heart disease have cardiogenic thrombi with atrial fibrillation from the Left Atrial Appendage (LAA) and that 91% of strokes with non-valvular atrial fibrillation are caused by thrombi in the left atrial appendage. Thus removing/closing the left atrial appendage will help reduce left atrial thrombosis and stroke events.
However, current methods of removing or closing the left atrial appendage are interventional occlusion and surgical excision or closure. The operation process is troublesome, the recovery period of the patient is long, and certain operation risks exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a negative pressure suction catheter for snatching left atrial appendage is provided, the effectual defect of overcoming prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a negative pressure suction catheter for grabbing left auricles comprises a catheter, wherein a negative pressure cavity channel and an airflow cavity channel which are mutually independent are arranged in the catheter along the length of the catheter, one end of the catheter is wrapped with a blocking balloon communicated with the airflow cavity channel, the other end of the catheter is provided with an air inlet/outlet interface and a negative pressure interface which are respectively communicated with the negative pressure cavity channel and the airflow cavity channel, the negative pressure cavity channel extends out of the outer part of one end of the catheter, penetrates through the blocking balloon, and forms a negative pressure suction port at the port.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the guide tube includes an inner tube and an outer tube, the inner tube is disposed in the outer tube, the inner tube forms the negative pressure channel, and the outer tube forms the airflow channel.
Further, the air intake/exhaust port is provided at the side of the other end of the outer tube, and the negative pressure port is provided at the end of the other end of the outer tube.
Further, the guide pipe comprises two pipe bodies which are mutually parallel and fixed, and the negative pressure cavity channel and the airflow cavity channel are respectively formed inside the two pipe bodies.
Furthermore, the negative pressure suction port is in a flared shape which is expanded outwards, or is a cylindrical pipe orifice which is spliced in multiple stages by adopting different pipe diameters.
Further, the conduit is one of polytetrafluoroethylene, S stainless steel, block polyether amide or thermoplastic polyurethane elastic tubes.
Furthermore, the occlusion balloon is made of one of nylon high polymer, polydodecalactam or polyamide.
The utility model has the advantages that: structural design is reasonable, through the device can be quick snatch left atrial appendage in left atrial appendage ligation, no thorn damage reaches the risk of bleeding, and the security is high.
Drawings
Fig. 1 is a schematic structural view of the negative pressure suction catheter for grasping left atrial appendage of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a conduit; 2. blocking the balloon; 11. an intake/exhaust interface; 12. a negative pressure interface; 13. an inner tube; 14. an outer tube.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example (b): as shown in fig. 1, the negative pressure suction catheter for grasping left atrial appendage of the present embodiment includes a catheter 1, a negative pressure channel and an airflow channel independent from each other are arranged inside the catheter 1 along the length of the catheter, an occlusion balloon 2 communicated with the airflow channel is wrapped at one end of the catheter 1, an air inlet/outlet port 11 and a negative pressure port 12 are respectively arranged at the other end of the catheter 1 and are communicated with the negative pressure channel and the airflow channel, the negative pressure channel extends out of one end of the catheter 1 and passes through the occlusion balloon 2, and a negative pressure suction port is formed at the port.
The realization process is as follows:
femoral artery puncture, the intubate, will carry the sheath pipe to send to left auricle opening part under the guide of supersound or radiography, then put into this negative pressure suction pipe along carrying the sheath pipe, and stretch to in the left auricle, it is sufficient to aerify to shutoff sacculus 2 through advancing/exhaust interface 11, its fixed left auricle inner wall, provide negative pressure suction environment (in the left auricle), negative pressure generating source is connected to negative pressure interface 12, begin to aspirate, adsorb left auricle tissue in the negative pressure is inhaled, reach the purpose of snatching the left auricle, then release shutoff sacculus 2, outwards stimulate, can be with left auricle enstrophe, then, to left auricle inside ligature can, whole device structural design is reasonable, can be quick snatch the left auricle in left auricle art through the ligature device, no thorn damage and bleeding risk, the security is high.
In this embodiment, the catheter 1 includes at least the following two structural forms:
1) the catheter 1 includes an inner tube 13 and an outer tube 14, the inner tube 13 is disposed in the outer tube 14, the inner tube 13 forms the negative pressure channel, and the outer tube 14 forms the gas flow channel.
In this scheme, pipe 1 adopts two bodys of inside and outside plug bush, inner tube 13 and outer tube 14 promptly, and this kind of structural design is reasonable, and inner tube 13 passes shutoff sacculus 2 to wear out the position connection and seal, make shutoff sacculus 2 parcel in the one end outside that inner tube 13 wore out, ensure that shutoff sacculus 2 gas tightness is good.
Preferably, the air inlet/outlet port 11 is disposed at the side of the other end of the outer tube 1, the negative pressure port 12 is disposed at the end of the other end of the outer tube 1, and the two ports form a Y-shaped joint shape, so as to facilitate connection with corresponding devices respectively.
2) The duct 1 includes two fixed tubes arranged in parallel, and the insides of the two tubes respectively form the negative pressure channel and the airflow channel.
In the scheme, the catheter is composed of two parallelly attached tubes, the processing technology is simple, and the use is convenient.
Preferably, the conduit 1 is one of polytetrafluoroethylene, S304 stainless steel, block polyether amide or thermoplastic polyurethane elastic tube.
Preferably, the occlusion balloon 2 is made of one of nylon high polymer, polydodecalactam and polyamide.
Of course, in this embodiment, the air inlet/outlet port 11 and the negative pressure port 12 are both made of polycarbonate.
Preferably, above-mentioned negative pressure suction opening is the bellmouth column structure that expands outward, or adopts different pipe diameters to carry out the cylinder mouth of pipe of multistage concatenation, can more effectual absorption hold left auricle head end.
Specifically, when the negative pressure suction port is designed in a multi-stage splicing mode, the multi-stage pipe diameter of the negative pressure suction port gradually increases from one end close to the negative pressure cavity channel to the other end.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A negative pressure aspiration catheter for grasping a left atrial appendage, comprising: including pipe (1), pipe (1) is inside to be equipped with mutually independent negative pressure chamber along its pipe length and says with the air current chamber, the one end parcel of pipe (1) be equipped with shutoff sacculus (2) that the air current chamber says the intercommunication, pipe (1) other end be equipped with respectively with negative pressure chamber says and says advancing/exhaust interface (11) and negative pressure interface (12) of intercommunication with the air current chamber, the negative pressure chamber says to extend pipe (1) one end is outside, and passes shutoff sacculus (2) to form the negative pressure suction inlet in port department.
2. A negative pressure aspiration catheter for grasping a left atrial appendage as in claim 1, wherein: the guide pipe (1) comprises an inner pipe (13) and an outer pipe (14), the inner pipe (13) is arranged in the outer pipe (14), the inner part of the inner pipe (13) forms the negative pressure cavity channel, and the inner part of the outer pipe (14) forms the airflow cavity channel.
3. A negative pressure aspiration catheter for grasping a left atrial appendage as in claim 2, wherein: the air inlet/outlet port (11) is arranged on the side of the other end of the outer pipe (14), and the negative pressure port (12) is arranged on the end part of the other end of the outer pipe (14).
4. A negative pressure aspiration catheter for grasping a left atrial appendage as in claim 1, wherein: the guide pipe (1) comprises two pipe bodies which are mutually parallel and fixed, and the insides of the two pipe bodies respectively form the negative pressure cavity channel and the airflow cavity channel.
5. A negative pressure aspiration catheter for grasping a left atrial appendage according to any one of claims 1 to 4, wherein: the negative pressure suction port is in a flared shape which is expanded outwards, or is a cylindrical pipe orifice which is spliced in a multistage manner by adopting different pipe diameters.
6. A negative pressure aspiration catheter for grasping a left atrial appendage according to any one of claims 1 to 4, wherein: the catheter (1) is one of polytetrafluoroethylene, S304 stainless steel, block polyether amide or thermoplastic polyurethane elastic tubes.
7. A negative pressure aspiration catheter for grasping a left atrial appendage according to any one of claims 1 to 4, wherein: the occlusion saccule (2) is made of one of nylon high polymer, polydodecalactam or polyamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120723199.6U CN214856989U (en) | 2021-04-09 | 2021-04-09 | Negative pressure suction catheter for grabbing left auricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120723199.6U CN214856989U (en) | 2021-04-09 | 2021-04-09 | Negative pressure suction catheter for grabbing left auricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214856989U true CN214856989U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120723199.6U Active CN214856989U (en) | 2021-04-09 | 2021-04-09 | Negative pressure suction catheter for grabbing left auricle |
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| CN (1) | CN214856989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027913A (en) * | 2021-12-07 | 2022-02-11 | 云南省阜外心血管病医院 | Adsorption type left auricle external ring ligation system for cardiac surgery |
-
2021
- 2021-04-09 CN CN202120723199.6U patent/CN214856989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027913A (en) * | 2021-12-07 | 2022-02-11 | 云南省阜外心血管病医院 | Adsorption type left auricle external ring ligation system for cardiac surgery |
| CN114027913B (en) * | 2021-12-07 | 2024-04-19 | 云南省阜外心血管病医院 | Left auricle and heart external cerclage system for adsorption type cardiac surgery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211222 Address after: 518000 Room 601, building 2, Yinxing Zhijie, No. 1301-72, sightseeing Road, Xinlan community, Guanlan street, Longhua District, Shenzhen, Guangdong Patentee after: McGrady leading medical technology (Shenzhen) Co.,Ltd. Address before: Floor 3-1, building B13, 818 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: WUHAN KAIHE TONGLI MEDICAL TECHNOLOGY Co.,Ltd. |