CN114631875B - Device for puncturing atrial septum - Google Patents
Device for puncturing atrial septum Download PDFInfo
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- CN114631875B CN114631875B CN202210531582.0A CN202210531582A CN114631875B CN 114631875 B CN114631875 B CN 114631875B CN 202210531582 A CN202210531582 A CN 202210531582A CN 114631875 B CN114631875 B CN 114631875B
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- sheath
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- tube
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
Abstract
The invention relates to a device for atrial septal puncture of a heart, which comprises a sheath, a puncture needle, an inner airbag and an outer airbag, wherein the root of the puncture needle is fixed at the head end of the sheath, the root of the puncture needle is connected with an administration tube, the administration tube penetrates through the inside of the sheath, and the puncture needle is exposed outside the sheath; the root of the outer air sac is arranged at the head end of the sheath tube, the outer air sac can be wrapped outside the puncture needle after being inflated and expanded, and the puncture needle can be exposed after the outer air sac is exhausted; the inner air bag is arranged inside the head end of the sheath tube and comprises a plurality of sub air bags, each sub air bag independently controls air supply, and the inclination direction of the head end of the sheath tube is finely adjusted through the difference of the air inflation quantity of different sub air bags; the plurality of sub-air bags are annularly arranged in parallel along the inner wall of the sheath tube and surround the administration tube to assist in fixing the administration tube.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a device for puncturing atrial septa of a heart.
Background
With the development of medical technology, especially cardiovascular interventional therapy technology, atrial fibrillation radio frequency ablation is continuously deepened into the heart of people, and atrial septal puncture is gradually valued by general doctors. The interatrial puncture is a common operation for treating heart diseases, and the key step of the operation is the interatrial puncture which can be quickly and accurately realized. At present, medical instruments for atrial septal puncture mainly comprise a Mullins sheath, a Swartz sheath, a long guide wire, an atrial septal puncture needle, a contrast medium and the like, and can realize basic functions of micro-invasion, puncture and drug delivery. However, the existing medical devices have a great space for improving the flexibility, convenience and safety of application, and due to the limitation of application functions, surgeons are required to have a high technical level to be skilled in application of the existing devices.
Specifically, the existing medical instrument for atrial septal puncture has poor guidance performance, and is inconvenient for flexibly changing the advancing direction in real time; the puncture needle is easy to stab other organism tissues of the patient to cause secondary injury; when the medicine is administrated, the administration amount can be controlled only by an external administration device, but when the medicine is administrated by the body or tissue of a patient, the flexible control cannot be realized.
Disclosure of Invention
Aiming at the problems, the invention provides a device for puncturing atrial septal regions of a heart, which comprises a sheath, a puncture needle, an inner air sac and an outer air sac, wherein the root of the puncture needle is fixed at the head end of the sheath, the root of the puncture needle is communicated with an administration tube, the administration tube penetrates through the interior of the sheath, and the puncture needle is exposed out of the sheath;
the root of the outer air sac is arranged at the head end of the sheath tube, the outer air sac can be wrapped outside the puncture needle after being inflated and expanded, and the puncture needle can be exposed after the outer air sac exhausts;
the inner air bag is arranged inside the head end of the sheath tube and comprises a plurality of sub air bags, each sub air bag independently controls air supply, and the inclination direction of the head end of the sheath tube is adjusted through the difference of the air inflation quantity of different sub air bags; the plurality of sub-air bags are annularly arranged in parallel along the inner wall of the sheath tube and surround the administration tube to assist in fixing the administration tube.
The device for puncturing the atrial septum of the heart fundamentally changes the structure and the application form that the puncture needle needs to be hidden in the sheath tube at the early stage and then pushed out when puncturing is needed in the traditional puncturing device. The conventional application requires the arrangement of the relevant components for controlling the movement of the needle and this places high demands on the operating physician if the needle is controlled slightly improperly, which would cause secondary injuries to the patient. The puncture needle is directly arranged at the head end of the sheath, the puncture needle is arranged outside the sheath, so that parts for controlling the puncture needle are saved, the outer air bag is creatively arranged outside the puncture needle, and the outer air bag is inflated and exhausted to control the expansion and contraction of the outer air bag, so that the puncture needle is wrapped and exposed. In practical application, the safety of the control outer air sac is far higher than that of the control puncture needle. In addition, the sheath tube can finely adjust the direction of the head of the sheath tube under the action of the inner air sac, so that the requirement of positioning a fine puncture site in a narrow ventricular space can be quickly and flexibly met. The head end of a sheath tube of a certain part is softer and easier to bend by controlling the inflation quantity of different sub-air bags, and the outer air bag wraps the puncture needle to move forward and can bend towards the direction which is easier to bend when encountering a barrier.
Optionally, a fixing seat is arranged at the head end of the sheath tube, and the root of the puncture needle is embedded in the center of the fixing seat and is used for being firmly connected with the sheath tube; the administration tube penetrates through the fixing seat, extends to the inside of the sheath tube, extends to the external environment through the sheath tube and is connected with the administration device.
Further optionally, the root of the outer airbag is fixed around the fixing seat around the root of the puncture needle, and the part of the fixing seat corresponding to the outer airbag is provided with at least one vent hole for supplying or exhausting air to the outer airbag;
the air vent penetrates through the fixing seat along the vertical direction, the bottom of the air vent is connected with a first air vent, the first air vent penetrates through a gap between the adjacent sub-air bags, extends to the inside of the sheath pipe, and then extends out of the sheath pipe to be connected with an air supply device.
Preferably, the outer airbag is a hollow inflation ring, the whole outer airbag is in a cylinder shape with a small upper part and a big lower part, and the hollow part is a reserved space of the puncture needle; the height of the outer air sac is larger than that of the puncture needle body;
the top of the outer air sac is provided with a layer of rubber film, and the rubber film covers the hollow part of the outer air sac above the puncture needle.
Further optionally, a circle of hard retainer ring is arranged on the upper portion, facing the outer wall surface of the puncture needle, of the outer airbag, the middle upper portion of the outer side wall of the hard retainer ring is fixedly connected with the outer wall surface of the outer airbag, and the top of the hard retainer ring contacts the rubber film.
Optionally, a circle of concave fixing grooves are formed in the side surface curved surface of the fixing base at positions corresponding to the hard retainer rings, and are used for accommodating and fixing the hard retainer rings after the outer airbag is exhausted and contracted, and meanwhile, the hard retainer rings drive the outer airbag to contract near the fixing base, so that the puncture needle is exposed.
Further optionally, the bottom of the hard retainer ring is symmetrically connected with at least two pull wires, and the tail ends of the pull wires penetrate through the bottom of the fixing groove and extend to the external environment through the sheath tube.
During the use, when needs puncture, through first breather pipe and the quick pump drainage gas in the outer gasbag of air vent for the outer gasbag contracts into the slice rapidly, and attached on the outer wall of stereoplasm retaining ring, operating personnel is at the outside tensile of sheath pipe the pull wire, the pull wire is in between two adjacent minute gasbags when the gasbag region in, does not influence the branch gasbag and aerifys the exhaust, and the pull wire pulls stereoplasm retaining ring joint and gets into the fixed slot, and the stereoplasm retaining ring drives and fixes the outer gasbag of slice near the fixed slot simultaneously, makes the pjncture needle expose completely.
Optionally, the inner air bag is arranged below the fixing seat, is located inside the sheath tube, and is composed of a plurality of annularly arranged sub air bags, the bottom of each sub air bag is connected with a second vent pipe, and all the second vent pipes extend to the external environment through the sheath tube and are connected with the air supply device;
the air supply device controls the inflation quantity or the air displacement of each second vent pipe, and further controls the expansion degree of each sub air bag.
Drawings
FIG. 1 is a schematic view showing the external structure of the device for puncturing atrial septum of heart;
FIG. 2 is a side sectional view of FIG. 1;
FIG. 3 is a cross-sectional view of the inner bladder portion;
FIG. 4 is a schematic structural view of a direction control device;
fig. 5 is a schematic view of another alternative device for atrial septal puncture.
In the attached figure, 1-sheath tube, 2-puncture needle, 3-inner air bag, 4-outer air bag, 5-administration tube, 6-air distribution bag, 7-fixing seat, 8-vent hole, 9-first vent pipe, 10-hard retainer ring, 11-fixing groove, 12-second vent pipe, 13-traction line, 14-sleeve, 15-steering rod, 16-handle, 17-steering head, 18-rubber film and 19-guide wire.
Detailed Description
The device for puncturing interatrial septum provided by the embodiment comprises a sheath 1, a puncture needle 2, an inner balloon 3 and an outer balloon 4, as shown in fig. 1-4, wherein the root of the puncture needle 2 is fixed at the head end of the sheath 1, the root of the puncture needle 2 is communicated with an administration tube 5, the administration tube 5 penetrates through the sheath 1, and the puncture needle 2 is exposed outside the sheath 1;
the root of the outer air bag 4 is arranged at the head end of the sheath tube 1, the outer air bag 4 can be wrapped outside the puncture needle 2 after being inflated and expanded, and the puncture needle 2 can be exposed after the outer air bag 4 is exhausted;
the inner air bag 3 is arranged inside the head end of the sheath tube 1, the inner air bag 3 comprises a plurality of sub air bags 6, each sub air bag 6 independently controls air supply, and the inclination direction of the head end of the sheath tube 1 is finely adjusted through different inflation quantities of the sub air bags 6; the sub-air bags 6 are arranged in a ring shape in parallel along the inner wall of the sheath tube 1, surround the administration tube 5 and assist in fixing the administration tube 5.
Optionally, a fixed seat 7 is arranged at the head end of the sheath tube 1, and the root of the puncture needle 2 is embedded in the center of the fixed seat 7 and is used for being firmly connected with the sheath tube 1; the administration tube 5 penetrates through the fixing seat 7, extends into the sheath tube 1, extends to the external environment through the sheath tube 1, and is connected with the administration device.
Further optionally, the root of the outer airbag 4 is fixed around the root of the puncture needle 2 around the fixing seat 7, and the fixing seat 7 is provided with at least one vent hole 8 corresponding to the outer airbag 4 for supplying or exhausting air to or from the outer airbag 4;
the air vent 8 penetrates through the fixing seat 7 along the vertical direction, the bottom of the air vent 8 is connected with the first air vent 9, the first air vent 9 penetrates through a gap between the adjacent sub-air bags 6, extends into the sheath pipe 1, then extends out of the sheath pipe 1, and is connected with an air supply device.
In one embodiment of the invention, the fixed seat 7 is in a round table shape, the root of the puncture needle 2 is embedded in the center of the fixed seat 7, and the needle body of the puncture needle 2 is exposed out of the fixed seat 7; the root of the outer airbag 4 surrounds the root of the puncture needle 2 and is arranged on the side surface curved surface of the fixed seat 7; two vent holes 8 are arranged on the side surface curved surface of the fixed seat 7 and at symmetrical positions on two sides of the center of the fixed seat 7, and are used for supplying and exhausting air to the outer air bag 4 together, so that the shape change of the outer air bag 4 is uniform when the outer air bag is expanded and contracted, and the outer air bag is prevented from being punctured by the puncture needle 2; the bottom of each vent hole 8 is connected with a first vent pipe 9, the first vent pipe 9 penetrates through the outer wall surface between two adjacent sub-air bags 6 at the corresponding position, and the first vent pipe 9 preferably does not penetrate through the insides of the sub-air bags 6; the first vent pipe 9 is made of hard plastics and can bear certain pressure, and when the sub-air bags 6 on the two sides are inflated to a large amount, the first vent pipe 9 cannot be squeezed flat, so that smooth ventilation is kept; the two first vent pipes 9 extend to the external environment through the sheath pipe 1 and are connected with a gas supply device.
Preferably, the outer airbag 4 is a circle of hollow inflatable ring, the whole body of the outer airbag is in a cylindrical shape with a small upper part and a large lower part, and the hollow part is a reserved space of the puncture needle 2; the height of the outer air sac 4 is larger than that of the needle body of the puncture needle 2, so that the outer air sac 4 can smoothly pass through the body and can be prevented from being punctured by the puncture needle 2;
the top of the outer balloon 4 is provided with a rubber membrane 18, and the rubber membrane 18 covers the hollow part of the outer balloon 4 above the puncture needle 2. When the puncture is not needed, the outer air bag 4 is inflated to expand, the puncture needle 2 is hidden in the hollow area of the inflation ring of the outer air bag 4, and meanwhile, the rubber film 18 prevents tissue fluid or blood from entering the area where the puncture needle 2 is located and also prevents the puncture needle 2 from being exposed. When puncture is required, the outer bag 4 is deflated and the puncture needle 2 pierces the rubber film 18 and is exposed to the outside, and puncture work is performed.
Further optionally, a hard retainer ring 10 is arranged on the upper portion of the outer wall surface of the outer airbag 4 facing the puncture needle 2, the middle upper portion of the outer side wall of the hard retainer ring 10 is fixedly connected with the outer wall surface of the outer airbag 4, and the top of the hard retainer ring 10 contacts the rubber membrane 18. The hard retaining ring 10 is made of hard plastics, metal or hard rubber, the puncture needle 2 can be effectively prevented from puncturing the outer airbag 4, when puncture is not needed, the head end of the sheath 1 leads the sheath 1 to pass through the human body, when the direction is changed, the outer airbag 4 can possibly touch the organism tissue to further extrude the puncture needle 2, and in order to further prevent the outer airbag 4 from being punctured, the hard retaining ring 10 is arranged at the position corresponding to the needle head of the puncture needle 2 to protect the outer airbag 4.
Optionally, a circle of concave fixing grooves 11 is formed in the side surface curved surface of the fixing seat 7 at a position corresponding to the hard retainer ring 10, and is used for accommodating and fixing the hard retainer ring 10 after the outer airbag 4 is deflated and contracted, and meanwhile, the hard retainer ring 10 drives the outer airbag 4 to contract near the fixing seat 7, so that the puncture needle 2 is exposed.
Further optionally, the bottom of the hard retainer ring 10 is symmetrically connected with at least two pulling wires 13, and the ends of the pulling wires 13 penetrate through the bottom of the fixing groove 11 and extend to the external environment through the sheath tube 1.
During the use, when needs puncture, through the quick pump drainage gas in the outer gasbag 4 of first breather pipe 9 and air vent 8 for outer gasbag 4 contracts into the slice fast, and attached on the outer wall of stereoplasm retaining ring 10, surgical personnel is at the outside tensile of sheath pipe 1 the pull wire 13, pull wire 13 are in between two adjacent minute gasbag 6 when interior gasbag 3 is regional, do not influence minute gasbag 6 and aerify the exhaust, and pull wire 13 pulls stereoplasm retaining ring 10 joint and get into fixed slot 11, and stereoplasm retaining ring 10 drives and fixes flaky outer gasbag 4 near fixed slot 11 simultaneously, makes pjncture needle 2 expose completely.
After the outer air bag 4 is exhausted, particularly after all the air is exhausted, the whole body is contracted into a sheet shape and is attached to the puncture needle 2, so that the operation of the puncture needle 2 is influenced. The design of the hard retainer ring 10 can protect the outer air bag 4 when the outer air bag 4 is in an inflated state, and after the outer air bag 4 exhausts the gas, the outer air bag 4 is attached to the outer side of the hard retainer ring 10, and after the hard retainer ring 10 is clamped into the fixing groove 11, the outer air bag 4 is driven to further contract at the lower part of the puncture needle 2, so that the puncture and the drug administration are not influenced.
Optionally, the inner airbag 3 is disposed below the fixing seat 7, is located inside the sheath tube 1, and is composed of a plurality of sub-airbags 6 arranged in a ring shape, the bottom of each sub-airbag 6 is connected to a second vent pipe 12, and all the second vent pipes 12 extend to the external environment through the sheath tube 1 and are connected to an air supply device;
the air supply device controls the amount of inflation or deflation of each second vent pipe 12, thereby controlling the degree of inflation of each sub-air bag 6.
The design of the inner bladder 3 proposed by the present invention has three functions: (1) an auxiliary fixed administration tube 5 and a first vent tube 9; (2) when the medicine is not needed to be administered, the inclined direction of the head end of the sheath tube 1 is finely adjusted by controlling the inflation amount of different sub-airbags 6; (3) when the medicine needs to be administered, the outer air bag 4 exhausts and contracts at the moment, the puncture needle 2 is exposed and punctures, the first vent pipe 9 is free of gas, the extrusion influence of the inner air bag 3 on the first vent pipe 9 is not considered, the air supply device and the second vent pipe 12 are used for enabling the inflating quantity of each sub air bag 6 to be the same, namely, the extrusion effect on the middle medicine administration pipe 5 in all directions is the same, the medicine administration quantity passing through the medicine administration pipe 5 is adjusted in real time by controlling the extrusion pressure of the whole inner air bag 3 on the medicine administration pipe 5, the adjusting effect is used as an assistant or supplement of an external medicine administration control device, and micro-adjustment and precise medicine administration are realized.
Optionally, the device for puncturing the atrial septum further comprises a direction control device, the direction control device comprises a sleeve 14, a hollow steering rod 15 and a handle 16, the sleeve 14 is arranged inside the sheath 1 and is located below the inner balloon 3, the head of the steering rod 15 penetrates through the sleeve 14, and the tail of the steering rod is connected with the handle 16;
the head of the steering rod 15 is provided with a telescopic steering head 17, a flexible propelling rod is arranged in the steering head 17, and the tail of the flexible propelling rod is connected with a handle 16; when the steering head 17 extends, the steering head 17 can deflect to one direction, the steering head 17 can be driven to rotate by rotating the handle 16, the deflection direction is adjusted, the steering head 17 can be driven to stretch by driving the push rod to enter and exit by the handle 16, and the deflection amplitude is adjusted.
The first vent pipe, the second vent pipe, the administration pipe and the pull wire all penetrate through the sleeve 14 and then extend to the outside along the sheath pipe.
The invention provides another device for atrial septal puncture, which comprises a puncture needle 2, a sheath tube 1, a guide wire 19 and an outer air sac 4, wherein the outer air sac 4 is arranged at the head end of the sheath tube 1, the head end of the sheath tube 1 is provided with a rotatable direction changing device, the outer air sac 4 is in an inward concave flaring structure after being inflated, the outer air sac 4 is annular and forms the side wall of the flaring structure after being inflated, so that the inside of the flaring structure is hollow, the tail part of the outer air sac 4 is connected with the annular side wall at the head end of the sheath tube 1, the puncture needle 2 can extend out from the head end of the sheath tube 1, the tail part of the puncture needle 2 is connected with an administration tube 5, and a vent pipe is embedded in the side wall of the sheath tube 1 and used for supplying air to the outer air sac 4.
When in use, the sheath 1 is sent to a designated position in a patient body under the guidance of the guide wire 19, and after the outer balloon 4 is inflated, the tissue contacted with the head end of the sheath 1 can be protected to avoid tissue damage caused by the head end of the sheath 1; removing the guide wire 19, inserting the puncture needle 2 through the tail end of the sheath tube 1, wherein the puncture needle 2 penetrates through the sheath tube 1 and extends out of the head end of the sheath tube 1 to puncture; meanwhile, the tail part of the sheath tube 1 is sucked by using a suction device, and the head end of the sheath tube 1 forms a certain negative pressure suction effect when the outer air bag 4 is closely contacted with the tissue so as to stabilize the contact of the head end of the sheath tube 1 and the tissue; after puncture, the puncture needle 2 is withdrawn from the sheath 1, and the outer balloon 4 is deflated and then can be recovered into the sheath 1, so that the sheath 1 can pass through human tissues. The inhalation device may be an ear bulb.
The direction changing device can be the direction control device, so that the pointing direction of the head end of the sheath tube 1 can be adjusted.
Claims (10)
1. A device for atrial septal puncture of a heart is characterized by comprising a sheath, a puncture needle, an inner airbag and an outer airbag, wherein the root of the puncture needle is fixed at the head end of the sheath, the root of the puncture needle is communicated with an administration tube, the administration tube penetrates through the interior of the sheath, and the puncture needle is exposed out of the sheath;
the root of the outer air sac is arranged at the head end of the sheath tube, the outer air sac can be wrapped outside the puncture needle after being inflated and expanded, and the puncture needle can be exposed after the outer air sac is exhausted;
the inner air bag is arranged inside the head end of the sheath tube and comprises a plurality of sub air bags, each sub air bag independently controls air supply, and the inclination direction of the head end of the sheath tube is adjusted through the difference of the air inflation quantity of different sub air bags; the plurality of sub-air bags are annularly arranged in parallel along the inner wall of the sheath tube and surround the administration tube to assist in fixing the administration tube.
2. The apparatus for atrial septal puncture of claim 1, wherein the sheath has a fixing seat at the head end, and the puncture needle has a root embedded in the central inner portion of the fixing seat for firm connection with the sheath.
3. The device for atrial septal puncture of claim 2, wherein the drug delivery tube extends through the holder, into the sheath, through the sheath to the external environment, and into connection with the drug delivery device.
4. The apparatus according to claim 2, wherein the outer balloon is fixed around the base of the puncture needle at its base, and the base is provided with at least one ventilation hole corresponding to the outer balloon for supplying or exhausting air to or from the outer balloon.
5. The device for puncturing atrial septal puncture of claim 4, wherein the vent hole penetrates through the fixing base along a vertical direction, the bottom of the vent hole is connected with a first vent pipe, and the first vent pipe passes through a gap between adjacent sub-air sacs, extends to the inside of the sheath pipe, extends out of the sheath pipe and is connected with the air supply device.
6. The device for puncturing the interatrial septum of the heart according to claim 4, wherein the outer airbag is a hollow inflatable ring and has a cylindrical shape with a small top and a big bottom, and the hollow part is a reserved space for the puncture needle; the height of the outer air sac is larger than that of the puncture needle body;
the top of the outer air sac is provided with a layer of rubber film, and the rubber film covers the hollow part of the outer air sac above the puncture needle.
7. The device for atrial septal puncture of claim 6, wherein the outer balloon has a ring of hard collar at the upper part of the outer wall surface facing the puncture needle, the middle upper part of the outer sidewall of the hard collar is fixedly connected with the outer wall surface of the outer balloon, and the top of the hard collar contacts the rubber membrane.
8. The device for atrial septal puncture of claim 7, wherein the side curved surface of the fixing base is provided with a circle of concave fixing grooves at the position corresponding to the hard retainer ring, and the fixing grooves are used for accommodating and fixing the hard retainer ring after the outer air bag is deflated, and the hard retainer ring drives the outer air bag to be contracted near the fixing base to expose the puncture needle.
9. The device for atrial septal puncture of claim 8, wherein the bottom of the hard collar is symmetrically connected with at least two pull wires, and the ends of the pull wires penetrate through the bottom of the fixing groove and extend to the external environment through the sheath.
10. The device for atrial septal puncture of claim 1, wherein a second vent is connected to the bottom of each sub-balloon, all the second vents extending to the external environment through the sheath and being connected to the gas supply device;
the air supply device controls the inflation quantity or the air displacement of each second vent pipe, and further controls the expansion degree of each sub air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531582.0A CN114631875B (en) | 2022-05-17 | 2022-05-17 | Device for puncturing atrial septum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531582.0A CN114631875B (en) | 2022-05-17 | 2022-05-17 | Device for puncturing atrial septum |
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| CN114631875A CN114631875A (en) | 2022-06-17 |
| CN114631875B true CN114631875B (en) | 2022-07-26 |
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| CN202210531582.0A Active CN114631875B (en) | 2022-05-17 | 2022-05-17 | Device for puncturing atrial septum |
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| CN216148150U (en) * | 2020-12-23 | 2022-04-01 | 深圳市业聚实业有限公司 | Interatrial septum saccule sheath tube |
| CN113940736A (en) * | 2021-10-21 | 2022-01-18 | 汕头大学医学院第一附属医院 | Interatrial septum puncture device and method of use |
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