CN216962583U - Interatrial septum puncture assembly - Google Patents
Interatrial septum puncture assembly Download PDFInfo
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- CN216962583U CN216962583U CN202220015828.4U CN202220015828U CN216962583U CN 216962583 U CN216962583 U CN 216962583U CN 202220015828 U CN202220015828 U CN 202220015828U CN 216962583 U CN216962583 U CN 216962583U
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Abstract
The utility model provides an interatrial septum puncture assembly, which relates to the field of medical appliances and comprises a catheter sheath, an expansion sheath and a puncture needle; the catheter sheath comprises an outer sheath tube and a sealing seat connected to the rear end of the outer sheath tube; the expansion sheath tube passes through the sealing seat and the outer sheath tube; the puncture needle comprises a needle seat, a needle tube and a needle head which are sequentially connected from the rear end to the front end, the needle tube penetrates through the expansion sheath tube, and the needle seat is positioned at the rear side of the expansion sheath tube; wherein: a position indicating component capable of indicating the relative position between the front end of the needle head and the front end surface of the expansion sheath tube is arranged between the front end of the needle seat and the rear end of the expansion sheath tube. The utility model solves the technical problems that when the existing interatrial septum puncture assembly is used, the puncture point and puncture strength of a puncture needle are not convenient to determine, and the blood vessel is easy to be damaged.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an interatrial septum puncture assembly.
Background
In the medical field, cardiac atrial septal puncture is often used to treat heart diseases. Normally, percutaneous access catheters cannot be advanced anteriorly directly into the left atrium, and although they can be advanced retrograde through the two turns of the aortic and mitral valves into the left atrium, they are complicated to operate, and puncturing the interatrial septum makes it possible and simplified to perform left system examinations from the right atrium to the left atrium. The atrial septal puncture in the early years is mainly used for left cardiac catheter examination of patients with mitral valve or aortic stenosis, along with development of cardiovascular interventional therapy, particularly the vigorous development of mitral valve forming, the atrial septal puncture technology is increasingly emphasized, for patients with atrial fibrillation (atrial fibrillation), radio frequency ablation under guidance of a three-dimensional system is preferred for radical treatment of atrial fibrillation, and one of important steps for completing the operation is cardiac atrial septal puncture.
However, when the existing interatrial septum puncture assembly is used, the puncture point and puncture force of the puncture needle are not convenient to determine, and the blood vessel is easy to be damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an interatrial septum puncture assembly to solve the technical problems that when the existing interatrial septum puncture assembly is used, a puncture point and puncture strength of a puncture needle are not convenient to determine, and blood vessels are easy to be damaged.
In order to achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:
the embodiment of the utility model provides an interatrial septum puncture assembly, which comprises a catheter sheath, an expansion sheath and a puncture needle; the catheter sheath comprises an outer sheath tube and a sealing seat connected to the rear end of the outer sheath tube; the expansion sheath pipe penetrates through the sealing seat and the outer sheath pipe, and the outer peripheral surface of the expansion sheath pipe is connected with the inner peripheral surface of the sealing seat in a sealing mode through a sealing structure; the puncture needle comprises a needle seat, a needle tube and a needle head which are sequentially connected from the rear end to the front end, the needle tube penetrates through the expansion sheath tube, and the needle seat is positioned on the rear side of the expansion sheath tube; particularly, in the embodiment of the utility model, a position indicating assembly capable of indicating the relative position between the front end of the needle head and the front end surface of the expansion sheath is arranged between the front end of the needle seat and the rear end of the expansion sheath.
The puncture flow of the interatrial septum puncture system is as follows: firstly, puncturing a femoral vein, and delivering a guide wire into a superior vena cava; secondly, under the guidance of a guide wire, the outer sheath and the expansion sheath are sent into the vein; taking out the guide wire, sucking the expanded sheath tube and flushing with normal saline to ensure that no air enters; fourthly, the needle tube of the puncture needle penetrates into the expansion sheath tube, the running state of the puncture needle is ensured through the position indicating assembly arranged at the front end of the needle seat and the rear end of the expansion sheath tube, and the front end of the needle head is ensured not to extend out of the expansion sheath tube when not being punctured; fifthly, after the front end of the expansion sheath tube is determined to be in the correct position of the oval fossa, the needle tube of the puncture needle is pushed forward to penetrate into the oval fossa, and the puncture depth and the puncture force are determined by position indicating assemblies arranged at the front end of the needle seat and the rear end of the expansion sheath tube in the process; sixthly, keeping the needle head of the puncture needle fixed at the position of the left atrium, and meanwhile, advancing the expansion sheath tube and the outer sheath tube to the left atrium along the needle tube of the puncture needle, and meanwhile, preventing the puncture needle from damaging the left atrium; finally, the whole puncture needle and the expansion sheath are withdrawn.
Above-mentioned whole in-process, the position indication subassembly that the rear end through the front end of needle file and expansion sheath pipe set up supplies the art person to look over in order to confirm relative position between syringe needle front end and the expansion sheath pipe front end face, and then reaches the running state of ensureing the pjncture needle, and supplementary art person makes clear and definite the puncture point and the puncture dynamics of pjncture needle, reduces the beneficial effect to the damage that blood vessel caused.
In some optional implementation manners of the embodiment of the utility model, a tube seat is arranged at the rear end of the expansion sheath tube, the needle tube penetrates through the tube seat and the expansion sheath tube, and the needle seat is positioned at the rear side of the tube seat; the position indicating assembly comprises a strip-shaped extension plate which is arranged on the needle seat and extends out towards the front of the needle seat and a limiting block which is arranged on the tube seat;
a limiting groove is formed in the side face of the strip-shaped extending plate in the length direction, the limiting groove penetrates through the front end face of the strip-shaped extending plate, and the limiting block can slide in the limiting groove under the condition that the needle seat slides forwards and backwards relative to the tube seat;
and the front end face of the bar-shaped extension plate and the rear end face of the limiting block are in the state of the same circumferential face of the needle tube, the needle head is positioned in the expansion sheath tube, the in-groove rear end face of the limiting groove in the bar-shaped extension plate is abutted against the rear end face of the limiting block, and the needle head completely extends out of the expansion sheath tube.
Further optionally, the limiting groove penetrates through the strip-shaped extending plate along the width direction of the strip-shaped extending plate.
Optionally, a scale extending along the length direction of the bar-shaped extension plate is arranged at a position, on one side of the limiting groove, of the bar-shaped extension plate.
In some optional implementations of embodiments of the present invention, the position indicating assembly includes a luer female connector and a luer male connector;
the front end of the needle seat is provided with a connecting part, one of the outer peripheral surface of the connecting part and the inner peripheral surface of the rear end of the luer female connector is provided with an annular clamping groove, and the other is provided with a boss which can rotate in the annular clamping groove, so that the luer female connector can rotate relative to the needle seat;
the front end of the luer male connector is detachably connected to the rear end of the sealing seat, and the front end of the luer male connector is fixedly connected to the outer peripheral surface of the rear end of the expansion sheath tube;
the front end of the luer female connector is in threaded connection with the rear end of the luer male connector; the needle is located inside the dilating sheath in a state where the rear end of the luer male connector is in contact with the front end of the luer female connector but is not inserted; the needle fully extends out of the dilating sheath in a state where a rear end of the luer male connector is fully butted against a front end of the luer female connector.
Further optionally, the front end of the luer male connector is connected to the rear end of the sealing seat through another luer female connector; one of the outer peripheral surface of the front end of the luer male connector and the inner peripheral surface of the rear end of the other luer female connector is provided with an annular clamping groove, and the other one of the outer peripheral surface of the front end of the luer male connector and the inner peripheral surface of the rear end of the other luer female connector is provided with a boss which can rotate in the annular clamping groove, so that the other luer female connector can rotate relative to the luer male connector; the front end of the other luer female joint is in threaded connection with the rear end of the sealing seat.
Alternatively, a scale extending in the extending direction of the luer female connector is provided on the outer peripheral surface of the luer female connector connected to the hub.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic overall block diagram of a first alternate embodiment of a transseptal puncture assembly provided in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an exploded view of the transseptal puncture assembly shown in FIG. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
FIG. 5 is a schematic view of the overall configuration of a second alternate embodiment of a transseptal puncture assembly provided in accordance with an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion C of FIG. 5;
FIG. 7 is a cross-sectional view of the transseptal puncture assembly shown in FIG. 5;
FIG. 8 is an enlarged view of a portion D of FIG. 7;
FIG. 9 is a schematic view of the overall construction of a third alternate embodiment of a transseptal puncture assembly provided in accordance with an embodiment of the present invention;
FIG. 10 is an enlarged view of a portion E of FIG. 9;
FIG. 11 is a cross-sectional view of the transseptal puncture assembly illustrated in FIG. 9;
fig. 12 is a partial structure enlarged view of a portion F in fig. 11.
Icon: 1-a catheter sheath; 11-sheath canal; 12-a sealing seat; 2-expanding the sheath; 21-tube seat; 3, puncturing needle; 31-a needle seat; 32-needle tube; 33-a needle head; 41-a strip-shaped extension plate; 411-a limiting groove; 42-a limiting block; 43-luer female linker; 44-luer male; 51-a ring card slot; 52-boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The present embodiment provides a transseptal puncture assembly, which, referring to fig. 1 to 12, comprises an introducer sheath 1, an expansion sheath 2 and a puncture needle 3; the catheter sheath 1 comprises an outer sheath tube 11 and a sealing seat 12 connected to the rear end of the outer sheath tube 11, a through hole penetrating through the sealing seat 12 is formed in the sealing seat 12 in the front and back direction, and the outer sheath tube 11 is communicated with the through hole; the expansion sheath tube 2 passes through the sealing seat 12 and the outer sheath tube 11, the outer circumferential surface of the expansion sheath tube 2 is connected with the inner circumferential surface of the sealing seat 12 in a sealing way through a sealing structure, and the expansion sheath tube 2 can slide back and forth relative to the sealing seat 12 so as to slide back and forth relative to the outer sheath tube 11; the puncture needle 3 comprises a needle seat 31, a needle tube 32 and a needle head 33 which are sequentially connected from the rear end to the front end, the needle seat 31 is provided with a front needle seat 31 hole and a rear needle seat 31 hole which are communicated with the needle tube 32, the needle head 33 is provided with a needle hole, the needle seat 31 hole and the needle hole are communicated with the tube cavity of the needle tube 32, the needle tube 32 penetrates through the expansion sheath tube 2, and the needle seat 31 is positioned on the rear side of the expansion sheath tube 2. Specifically, a position indicating assembly capable of indicating the relative position between the front end of the needle head 33 and the front end surface of the expansion sheath 2 is arranged between the front end of the needle seat 31 and the rear end of the expansion sheath 2.
The puncture flow of the interatrial septum puncture system is as follows: firstly, puncturing a femoral vein, and delivering a guide wire into a superior vena cava; secondly, under the guidance of a guide wire, the outer sheath tube 11 and the expansion sheath tube 2 are sent into a vein; thirdly, taking out the guide wire, sucking the expanded sheath 2 and flushing with physiological saline to ensure that no air enters; fourthly, the needle tube 32 of the puncture needle 3 is penetrated into the expansion sheath tube 2, the running state of the puncture needle 3 is ensured through the position indicating components arranged at the front end of the needle seat 31 and the rear end of the expansion sheath tube 2, and the front end of the needle head 33 is ensured not to extend out of the expansion sheath tube 2 when not being punctured; fifthly, after the front end of the expansion sheath tube 2 is determined to be in the correct position of the oval fossa, the needle tube 32 of the puncture needle 3 is pushed forward to penetrate the oval fossa, and the puncture depth and the puncture force are determined by position indicating assemblies arranged at the front end of the needle seat 31 and the rear end of the expansion sheath tube 2 in the process; sixthly, keeping the position of the needle head 33 of the puncture needle 3 in the left atrium still, and simultaneously advancing the dilating sheath 2 and the outer sheath 11 along the needle tube 32 of the puncture needle 3 to the left atrium, while preventing the puncture needle 3 from damaging the left atrium; finally, the puncture needle 3 as a whole and the dilating sheath 2 are withdrawn.
Above-mentioned whole in-process, the position indication subassembly that sets up through the front end of needle file 31 and the rear end of expansion sheath pipe 2 supplies the art person to look over in order to confirm relative position between syringe needle 33 front end and the preceding terminal surface of expansion sheath pipe 2, and then reaches the running state who ensures pjncture needle 3, and supplementary art person makes clear the puncture point and the puncture dynamics of pjncture needle 3, reduces the beneficial effect to the damage that blood vessel caused.
In this embodiment, the specific structure of the position indicating assembly is various, such as but not limited to:
referring to fig. 1 to 4, as a first optional structure of the position indicating assembly of the present embodiment, a tube seat 21 is provided at the rear end of the dilating sheath 2, a needle tube 32 penetrates the tube seat 21 and the dilating sheath 2, and a needle hub 31 is located at the rear side of the tube seat 21; the position indicating assembly includes a strip-shaped extension plate 41 disposed on the needle holder 31 and extending out toward the front of the needle holder 31, and a stopper 42 disposed on the tube seat 21. A limiting groove 411 is arranged on the side surface of the strip-shaped extension plate 41 in the length direction, the limiting groove 411 penetrates through the front end surface of the strip-shaped extension plate 41, and the limiting block 42 can slide in the limiting groove 411 under the condition that the needle seat 31 slides back and forth relative to the tube seat 21; and the needle 33 is positioned inside the dilating sheath 2 in a state where the front end face of the strip-shaped extension plate 41 and the rear end face of the stopper 42 are in the same circumferential face of the needle tube 32, and the needle 33 is completely extended out of the dilating sheath 2 in a state where the rear end face in the groove of the stopper groove 411 on the strip-shaped extension plate 41 abuts against the rear end face of the stopper 42.
In this alternative embodiment, it is preferable, but not limited to, that the limiting groove 411 penetrates the strip-shaped extending plate 41 along the width direction of the strip-shaped extending plate 41; in addition, in the present embodiment, it is preferable, but not limited to, that a scale extending along the length direction of the bar-shaped extending plate 41 is provided at a position on the side of the limiting groove 411 on the bar-shaped extending plate 41, so that the relative position between the front end of the needle 33 and the front end surface of the dilating sheath 2 is more accurately indicated by the scale.
Referring to fig. 5 to 8, as a second alternative structure of the position indicating assembly of the present embodiment, the position indicating assembly includes a luer female connector 43 and a luer male connector 44. Specifically, the front end of the needle seat 31 is provided with a connecting part, one of the outer peripheral surface of the connecting part and the inner peripheral surface of the rear end of the luer connector 43 is provided with an annular clamping groove 51, the other is provided with a boss 52, and the boss 52 can rotate in the annular clamping groove 51, so that the luer connector 43 can rotate relative to the needle seat 31; the front end of the luer male connector 44 is inserted or detachably connected to the rear end of the sealing seat 12 through a connecting piece, and the front end of the luer male connector 44 is inserted or connected through a connecting piece or fixedly connected to the outer peripheral surface of the rear end of the dilating sheath 2 in other ways; the front end of the luer female connector 43 is screwed to the rear end of the luer male connector 44; when the luer female connector 43 is rotated, the luer female connector 43 can be connected to or disconnected from the luer male connector 44 while bringing the needle holder 31 forward or backward sliding with respect to the seal holder 12 and the dilating sheath 2. In a state where the rear end of the luer male connector 44 is in contact with the front end of the luer female connector 43 but is not inserted, the needle 33 is positioned inside the dilating sheath 2; in a state where the rear end of the luer male connector 44 is completely butted against the front end of the luer female connector 43, the needle 33 is completely extended out of the dilating sheath 2.
Referring to fig. 9 to 12, as a third optional structure of the position indicating assembly of the present embodiment, in addition to the second optional structure of the position indicating assembly described above, further, the front end of the luer male connector 44 is connected to the rear end of the seal holder 12 through another luer female connector 43; one of the front outer peripheral surface of the luer male connector 44 and the rear inner peripheral surface of the luer female connector 43 connected to the rear end of the seal holder 12 is provided with an annular groove 51, and the other is provided with a boss 52, and the boss 52 can rotate in the annular groove 51, so that the luer female connector 43 connected to the rear end of the seal holder 12 can rotate relative to the luer male connector 44; the luer female connector 43 connected to the rear end of the sealing housing 12 is screwed at its front end to the rear end of the sealing housing 12, and when the luer female connector 43 connected to the rear end of the sealing housing 12 is turned, the luer female connector 43 can be connected to or disconnected from the rear end of the sealing housing 12 while carrying the dilating sheath 2 forward or backward relative to the sealing housing 12.
In any one of the second and third alternative structures of the position indicating assembly of the present embodiment, preferably, but not limited to, a scale extending in the extending direction of the luer fitting 43 is provided on the outer peripheral surface of the luer fitting 43 attached to the needle holder 31, so that the relative position between the front end of the needle 33 and the front end surface of the dilating sheath 2 is indicated more accurately by the scale.
Finally, it should be noted that: the embodiments in the present description are all described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments can be referred to each other; the above embodiments in the present specification are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. An interatrial septum puncture assembly comprises a catheter sheath (1), an expansion sheath tube (2) and a puncture needle (3); the catheter sheath (1) comprises an outer sheath tube (11) and a sealing seat (12) connected to the rear end of the outer sheath tube (11); the expansion sheath tube (2) penetrates through the sealing seat (12) and the outer sheath tube (11), and the outer peripheral surface of the expansion sheath tube (2) is connected with the inner peripheral surface of the sealing seat (12) in a sealing mode through a sealing structure; the puncture needle (3) comprises a needle seat (31), a needle tube (32) and a needle head (33) which are sequentially connected from the rear end to the front end, the needle tube (32) penetrates through the expansion sheath tube (2), and the needle seat (31) is positioned on the rear side of the expansion sheath tube (2);
it is characterized in that the preparation method is characterized in that,
a position indicating assembly capable of indicating the relative position between the front end of the needle head (33) and the front end surface of the expansion sheath tube (2) is arranged between the front end of the needle seat (31) and the rear end of the expansion sheath tube (2).
2. The interatrial septum puncture assembly according to claim 1, wherein a hub (21) is provided at a rear end of the dilating sheath (2), the needle tube (32) passes through the hub (21) and the dilating sheath (2), and the needle hub (31) is located at a rear side of the hub (21); the position indicating assembly comprises a strip-shaped extension plate (41) which is arranged on the needle seat (31) and extends out towards the front of the needle seat (31), and a limiting block (42) which is arranged on the tube seat (21);
a limiting groove (411) is formed in the side face of the strip-shaped extending plate (41) in the length direction, the limiting groove (411) penetrates through the front end face of the strip-shaped extending plate (41), and the limiting block (42) can slide in the limiting groove (411) under the condition that the needle seat (31) slides forwards and backwards relative to the tube seat (21);
and the preceding terminal surface of bar extension board (41) with the rear end face of stopper (42) is in under the state of the same periphery of needle tubing (32), syringe needle (33) are located expand sheath pipe (2) inside limit groove (411)'s inslot rear end face on bar extension board (41) with under the state of the rear end face butt of stopper (42), syringe needle (33) stretch out completely expand sheath pipe (2).
3. The atrial septum puncture assembly according to claim 2, wherein the stopper groove (411) penetrates the strip-shaped extension plate (41) in the width direction of the strip-shaped extension plate (41).
4. The transseptal puncture assembly of claim 2, wherein a scale extending along the length direction of the strip-shaped extension plate (41) is provided on the strip-shaped extension plate (41) at a position on one side of the limit groove (411).
5. The transseptal assembly of claim 1, wherein the position indicating assembly comprises a luer female connector (43) and a luer male connector (44);
the front end of the needle seat (31) is provided with a connecting part, one of the outer peripheral surface of the connecting part and the inner peripheral surface of the rear end of the luer female connector (43) is provided with an annular clamping groove (51), the other is provided with a boss (52), and the boss (52) can rotate in the annular clamping groove (51) so that the luer female connector (43) can rotate relative to the needle seat (31);
the front end of the luer male connector (44) is detachably connected to the rear end of the sealing seat (12), and the front end of the luer male connector (44) is fixedly connected to the outer peripheral surface of the rear end of the expansion sheath tube (2);
the front end of the luer female connector (43) is in threaded connection with the rear end of the luer male connector (44); the needle (33) is located inside the dilating sheath (2) in a state where the rear end of the luer male connector (44) is in contact with the front end of the luer female connector (43) but is not inserted; the needle (33) is completely extended out of the dilating sheath (2) in a state where the rear end of the luer male connector (44) is completely butted against the front end of the luer female connector (43).
6. The transseptal assembly of claim 5,
the front end of the luer male connector (44) is connected to the rear end of the sealing seat (12) through another luer female connector (43); one of the front end outer peripheral surface of the luer male connector (44) and the rear end inner peripheral surface of the other luer female connector (43) is provided with an annular clamping groove (51), and the other is provided with a boss (52), wherein the boss (52) can rotate in the annular clamping groove (51) so that the other luer female connector (43) can rotate relative to the luer male connector (44); the front end of the other luer female joint (43) is screwed to the rear end of the seal holder (12).
7. Atrial septum puncture assembly according to claim 5 or 6, wherein a scale extending in the direction of extension of the luer connector (43) is provided on the outer circumferential surface of the luer connector (43) connected to the needle hub (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220015828.4U CN216962583U (en) | 2022-01-05 | 2022-01-05 | Interatrial septum puncture assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220015828.4U CN216962583U (en) | 2022-01-05 | 2022-01-05 | Interatrial septum puncture assembly |
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| CN216962583U true CN216962583U (en) | 2022-07-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363711A (en) * | 2022-08-22 | 2022-11-22 | 上海玮启医疗器械有限公司 | Interatrial septum puncture needle with adjustable needle tip extension length |
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2022
- 2022-01-05 CN CN202220015828.4U patent/CN216962583U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363711A (en) * | 2022-08-22 | 2022-11-22 | 上海玮启医疗器械有限公司 | Interatrial septum puncture needle with adjustable needle tip extension length |
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