CN211156128U

CN211156128U - Interatrial septum stoma device

Info

Publication number: CN211156128U
Application number: CN201921676012.0U
Authority: CN
Inventors: 邱芹; 周庆亮; 刘晓芳; 孟坚; 张苏欣
Original assignee: Beijing Med Zenith Medical Scientific Co Ltd
Current assignee: Beijing medipeak Medical Technology Co.,Ltd.
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-08-04
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a interatrial septum stoma device. Comprises a supporting component and a cutting head; the supporting component comprises a driving part and a driven part, and the driving part is movably sleeved in the driven part; the cutting head comprises a first cutting part and a second cutting part, one end of the first cutting part is hinged to the driving part, one end of the second cutting part is hinged to the driven part, and the other end of the first cutting part is hinged to the other end of the second cutting part; the side surface of the first cutting member and/or the side surface of the second cutting member are/is provided with a blade part. The interatrial septum stoma device provided by the utility model is characterized in that the driving part is movably sleeved in the driven part; one end of the first cutting piece and one end of the second cutting piece are hinged with the driving piece and the driven piece respectively, and the other ends of the first cutting piece and the second cutting piece are hinged with each other, so that the first cutting piece can be pushed out from the inside of the driven piece by only pushing or rotating the driving piece to complete the stoma. The interatrial septum ostomy device has the advantages of simple structure, simple and convenient operation, safety and reliability.

Description

Interatrial septum stoma device

Technical Field

The utility model relates to the field of medical equipment, especially relate to an interatrial septum ostomy device.

Background

Heart failure (abbreviated as heart failure) is a complex group of clinical syndromes in which the filling of the ventricles or the ability to eject blood is impaired due to any structural or functional abnormality of the heart, and its main clinical manifestations are dyspnea and fatigue (limited movement tolerance), and fluid retention (pulmonary congestion and peripheral edema). Heart failure is a severe and terminal stage of various heart diseases, has high morbidity, and is one of the most serious cardiovascular diseases at present. There are left heart, right heart and whole heart failure according to the occurrence of heart failure.

An interatrial ostomy is a stoma at the patient's interatrial septum, thereby creating a shunt for the left and right heart rooms, used to treat pulmonary hypertension (right-to-left shunt) or left heart failure (left-to-right shunt), and has proven clinically effective.

One of the conventional interatrial septum ostomy methods is to puncture the interatrial septum and then expand the balloon to perform an ostium of the interatrial septum. The myocardial tissue has a tendency to spring back after the stoma and over time the stoma contracts or even closes completely. In order to solve the problem that the stoma is reduced or even closed, the prior art provides an ostomy bracket and respectively discloses an implant for atrial shunt, which is characterized in that after percutaneous interatrial puncture, a shunt device is implanted at the interatrial puncture position by delivering an implant percutaneously so as to keep the shunt opening unobstructed.

Another stoma making method comprises a cutting device and a gripping device, wherein when the instrument makes a stoma to the tissue, the gripping device firstly positions and grips part of the tissue to be cut; then, the cutting device cuts part of the tissue grabbed by the grabbing device through a mechanical or high-frequency electric knife, and the cut part of the tissue is taken out of the body by the grabbing device, so that the stoma is formed.

Both of the above techniques have the following drawbacks. First, with an atrial shunt implant, the instruments are left behind at the stoma, which can easily lead to thrombosis, or the instruments fall off, forming an embolism. In addition, due to intimal hyperplasia, the instrument opening is blocked, and the channel is closed and loses the shunting effect. Second, cutting of endocardial tissue by a mechanical or high frequency electrosurgical knife during surgery presents a high risk of the cut tissue becoming dislodged and forming an embolism, for example, during surgery or during post-operative retrieval. Furthermore, loosening of the grasping device can easily result in damage to other myocardial tissue if it is cut during the cutting process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing an interatrial septum ostomy device to solve the problem that the structure of ostomy device is complicated, the operation is difficult, the security is low among the prior art.

(II) technical scheme

In order to solve the technical problem, the utility model provides a interatrial septum stoma device. The interatrial septum ostomy device comprises a supporting component and a cutting head; the supporting assembly comprises a driving part and a driven part, and the driving part is movably sleeved in the driven part; the cutting head comprises a first cutting piece and a second cutting piece, one end of the first cutting piece is hinged to the driving piece, one end of the second cutting piece is hinged to the driven piece, and the other end of the first cutting piece is hinged to the other end of the second cutting piece; the side surface of the first cutting piece and/or the side surface of the second cutting piece are/is provided with a blade part.

Further, the driving part is an inner sheath tube, the driven part is an outer sheath tube, or the driving part is a jackscrew, and the driven part is an inner sheath tube

Further, the interatrial septum ostomy appliance further comprises a locking assembly arranged on the driven member to lock the relative positions of the driving member and the driven member.

Further, locking Assembly includes retaining member and extruded article, the retaining member cover is established keep away from on the follower the one end of second cutting member, the driving piece is worn out the retaining member, the extruded article sets up the retaining member with between the driving piece, the retaining member with the extruded article cooperation is with the locking the driving piece with the relative position of follower.

Further, the interatrial septum ostomy device still includes outer sheath pipe, outer sheath pipe is established the outside of follower, locking Assembly includes retaining member and extruded piece, the retaining member cover is established keep away from on the outer sheath pipe the one end of second cutting member, the follower is worn out the retaining member, the extruded piece sets up the retaining member with between the follower, the retaining member with the extruded piece cooperation is with the locking the follower with the relative position of outer sheath pipe.

Further, the locker is a lock nut, and the pressing member is made of an elastic material.

Furthermore, the peripheral surface of the driving part is also provided with scale marks.

Further, the interatrial septum ostomy appliance further comprises a hand-held assembly, wherein the hand-held assembly is arranged at one end of the active member far away from the first cutting member.

Further, the hand-held assembly includes a handle and a hemostasis valve coupled to the handle and in communication with the active member.

Further, the length of the driving part is greater than or equal to that of the driven part.

(III) advantageous effects

The interatrial septum stoma device provided by the utility model is characterized in that the driving part is movably sleeved in the driven part; one end of the first cutting piece and one end of the second cutting piece are hinged with the driving piece and the driven piece respectively, and the other ends of the first cutting piece and the second cutting piece are hinged with each other, so that the first cutting piece can be pushed out from the inside of the driven piece by only pushing or rotating the driving piece to complete the stoma. The interatrial septum ostomy device has the advantages of simple structure, simple and convenient operation, safety and reliability.

Drawings

FIG. 1 is a schematic block diagram of an interatrial septum ostomy appliance according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of the interatrial septum ostomy appliance of FIG. 1 in use;

FIG. 3 is a schematic block diagram of another atrial septal ostomy appliance provided by an embodiment of the present invention;

FIG. 4 is a schematic block diagram of the interatrial septum ostomy appliance of FIG. 3 in use;

fig. 5 is a schematic side view of fig. 4.

The reference numbers illustrate:

1. a driving member; 2. a driven member; 3. a first cutting member; 4. a second cutting member; 5. a locking member; 6. an extrusion; 7. a handle; 8. a hemostatic valve; 9. a circular ring structural member; 10. sealing the blood valve; 11. an outer sheath tube; 12. a developing ring; 13. a hinge member.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5 in combination, the interatrial septum ostomy appliance of the present embodiment includes a support assembly and a cutting head; the supporting component comprises a driving part 1 and a driven part 2, and the driving part 1 is movably sleeved in the driven part 2; the cutting head comprises a first cutting part 3 and a second cutting part 4, one end of the first cutting part 3 is hinged on the driving part 1, one end of the second cutting part is hinged on the driven part 2, and the other end of the first cutting part 3 is hinged with the other end of the second cutting part 4; the side of the first cutting member 3 and/or the side of the second cutting member 4 is provided with a blade.

The interatrial septum stoma device provided by the utility model is characterized in that the driving part 1 is movably sleeved in the driven part 2; one end of the first cutting part 3 and one end of the second cutting part 4 are hinged with the driving part 1 and the driven part 2 respectively, and the other ends of the first cutting part 3 and the second cutting part 4 are hinged with each other, so that the first cutting part 3 can be pushed out from the inside of the driven part 2 to complete the stoma only by pushing or rotating the driving part 1. The interatrial septum ostomy device has the advantages of simple structure, simple and convenient operation, safety and reliability.

Particularly, the cutting head is used for realizing the function of making a mouthful, and the supporting component still plays the effect that drives the cutting head and accomplish the action of making a mouthful when realizing providing the supporting role to the cutting head.

In this embodiment, the supporting assembly includes a driving member 1 and a driven member 2, wherein the driving member 1 is movably sleeved in the driven member 2. In the present embodiment, the driving member 1 and the driven member 2 may be both tubular structural members, that is, the driving member 1 is an inner sheath tube, and the driven member 2 is an outer sheath tube. Or when the driving part 1 is a structural part such as a jackscrew, the driven part 2 is an inner sheath tube.

In addition, the driving member 1 and the driven member 2 may be made of plastic pipes with high hardness and good toughness, such as PE, HDPE, Pebax, and the like.

Furthermore, the outer peripheral surface of the driving member 1 is also provided with scale marks. The relative positions of the driving part 1 and the driven part 2 can be clearly and accurately displayed by setting scale marks. For example, five scale marks can be sequentially marked on the outer peripheral surface of the driving part 1, and the relative positions of the first cutting part 3 and the second cutting part 4 can be adjusted by adjusting the relative positions of the driving part 1 and the driven part 2, so that the stomas with different specifications can be realized.

Still further, the length of the driving member 1 is greater than or equal to the length of the driven member 2. The purpose of this is to be able to act by adjusting the position of the driving member 1 relative to the driven member 2 to adjust the position of the first cutting member 3 relative to the second cutting member 4. In this embodiment, the driven member 2 is fixed, that is, one end of the second cutting member 4 is fixed, and the driving member 1 is adjusted to drive the first cutting member 3 to move so as to realize the stomas with different specifications.

In this embodiment, the first cutting member 3 and the second cutting member 4 are used to perform a specific stoma operation, wherein one end of the first cutting member 3 is hinged to the end of the active member 1; one end of the second cutting member 4 is hinged to the end of the driven member 2. Note that the end of the driving member 1 and the end of the driven member 2 are directed to the same side. The other end of the first cutting member 3 is hinged to the other end of the second cutting member 4. Thus, the first cutting member 3 and the second cutting member 4 can rotate relatively to each other, and the opening or the retraction of the cutting head can be completed.

In addition, in order to ensure the connection stability of the first cutting member 3 and the second cutting member 4 with the driving member 1 and the driven member 2, a circular structural member 9 is further arranged at the end portions of the driving member 1 and the driven member 2, and the first cutting member 3 and the second cutting member 4 can be respectively hinged on the circular structural member 9.

The first cutting member 3 and the second cutting member 4 in this embodiment can be made of metal material, such as stainless steel, nitinol, etc. Because the metal material has higher structural strength, the stoma can be well finished. Of course, in other embodiments, other materials may be used to form the first and

second cutting members

3, 4, such as a stronger plastic material.

The first cutting member 3 and the second cutting member 4 in this embodiment are metal members with a sheet structure, so that the purpose of accurate stoma can be achieved. Of course, the first cutting member 3 and the second cutting member 4 may be configured to perform an ostomy function, such as a wire-shaped metal member.

Furthermore, in order to be able to perform the stoma function, the side of the first cutting member 3 and/or the side of the second cutting member 4 is provided with a blade. The edge portion may be formed on the side of the first cutting member 3 and/or the second cutting member 4 by means of grinding. The side faces referred to herein particularly refer to the side faces of the first cutting member 3 and/or the second cutting member 4 that are directed away from the central axis of the active member 1. Of course, in some alternative embodiments, blades may also be provided on both sides of the first cutting member 3 and/or the second cutting member 4.

Preferably, only the side of the second cutting member 4 is provided with a blade opening at least to 1/2 of the side of the second cutting member 4; the side surfaces of the first cutting member 3 may be provided with a chamfered structure.

Further, first cutting member 3 is a plurality of, and a plurality of first cutting member 3 set up along the circumference interval of initiative piece 1, and second cutting member 4 sets up with first cutting member 3 one-to-one.

For example, the number of the first cutting members 3 may be 4, correspondingly, the number of the second cutting members 4 is also 4, and 4

first cutting members

3 and 4 second cutting members 4 are all equally spaced on the driving member 1 and the driven member 2, so that a cross-shaped opening can be formed.

For another example, the number of the first cutting members 3 may be 6, and correspondingly, the number of the second cutting members 4 is also 6, and the 6 first cutting members 3 and the 6 second cutting members 4 are all equally spaced on the driving member 1 and the driven member 2, so that a hexagonal star-shaped opening can be formed.

Still further, the length and cross-sectional area of the first cutting member 3 are equal to the length and cross-sectional area of the second cutting member 4. For example, the lengths of the first cutting member 3 and the second cutting member 4 may each be set to a length of 0.5-2 cm.

As mentioned above, by adjusting the relative positions of the driving member 1 and the driven member 2, a mouth with a diameter of at least 0.5-2cm can be formed at the corresponding position of the human body.

In addition, since the blade portions are preferably provided only on the side surfaces of the second cutting member 4, the cross-sectional width of the hinge member 13 is larger than the cross-sectional widths of the first cutting member 3 and the second cutting member 4 in order to prevent the second cutting member 4 from scratching the inner wall of the driven member 2 during the pushing-out process. Thus, when the first cutting member 3 rotates relative to the second cutting member 4, the side surfaces of the first cutting member 3 or the second cutting member 4 are not in contact with the inner wall, so that the second cutting member 4 can be prevented from scratching the inner wall of the driven member 2.

In a preferred embodiment, the interatrial septum ostomy appliance further comprises a locking assembly arranged on the driven member 2 to lock the relative position of the driving member 1 and the driven member 2.

The locking assembly can play a role in limiting the relative positions of the driving part 1 and the driven part 2, so that the first cutting part 3 and the second cutting part 4 can be stably kept, and the stability of the stoma operation is ensured.

Particularly, locking Assembly in this embodiment is including retaining member 5 and extruded piece 6, and the retaining member 5 cover is established and is kept away from the one end of second cutting member on follower 2, and retaining member 5 is worn out to drive piece 1, and extruded piece 6 sets up between retaining member 5 and drive piece 1, retaining member 5 with extruded piece 6 cooperates with the locking drive piece 1 with the relative position of follower 2.

The pressing piece 6 can be tightly pressed between the locking piece 5 and the driving piece 1 by operating the locking piece 5, and the purpose of mutually locking the driving piece 1 and the driven piece 2 is further realized.

In addition, in some alternative embodiments, the interatrial septum ostomy device further comprises a sheath tube 11, the sheath tube 11 being sleeved on the outside of the driven member 2. Correspondingly, retaining member 5 just overlaps and establishes the one end of keeping away from second cutting member 4 on outer sheath pipe 11, and retaining member 5 is worn out to follower 2, and extruded piece 6 sets up between retaining member 5 and follower 2, and retaining member 5 and extruded piece 6 cooperate the relative position of locking follower 2 and outer sheath pipe 11.

Wherein, for the convenience of operation, the locker 5 is a locking nut and the pressing member 6 is made of an elastic material. Correspondingly, only the matched thread of the locking nut needs to be arranged on the outer sheath tube 11 or the driven part 2. For example, an external thread may be formed on the outer circumferential surface of the driven member 2 or the outer sheath tube 11, and the locking member 5 (i.e., a locking nut) may be screwed to the driven member 2 through the external thread. Thus, retaining member 5 can be closely attached to follower 2 or sheath pipe 11, and then produces the extrusion to extrusion 6 for extrusion 6 produces elastic deformation, and extrusion 6 is compressed to produce the deformation and then can fill up the space that forms between retaining member 5, drive piece 1 and the follower 2 tip, or fill up the space that forms between retaining member 5, follower 2 and the sheath pipe 11. Thus, the purpose of locking the driving part 1 and the driven part 2 or the driven part 2 and the outer sheath tube 11 is realized.

In a preferred embodiment, as shown in fig. 1 and 3, the interatrial septum ostomy appliance further comprises a hand-held assembly, which is arranged at the end of the active member 1 remote from the first cutting member 3; the hand-held assembly comprises a handle 7 and a hemostasis valve 8, wherein the hemostasis valve 8 is connected to the handle 7 and communicated with the driving piece 1.

The hand-held component is used for facilitating an operator to hold the interatrial septum ostomy device, a handle 7 in the hand-held component is arranged at one end, far away from the first cutting part 3, of the driving part 1, a hemostasis valve 8 is connected onto the handle, and the hemostasis valve 8 is communicated with the driving part 1. Thus, when blood flows out of the active member 1, the hemostatic valve 8 can prevent the blood from overflowing or restrict the blood in the active member 1.

In order to prevent blood from flowing into the connecting gap between the active part 1 and the handle 7, a blood sealing flap 10 is arranged at one end of the active part 1 close to the handle 7, and a side branch of the blood sealing flap can be used as an infusion passage after being introduced into a pressure extension tube.

Still further, be provided with development ring 12 on first cutting member 3, can guarantee through setting up development ring 12 that medical personnel see the position of first cutting member 3 under the operation in-process through referring to X line perspective, and then confirm patient's pathological change position.

When using the interatrial septum ostomy device, the following steps may be followed:

firstly, after a room puncture needle is adopted to puncture the fossa ovalis successfully, a driven part 2 and a driving part 1 are reserved;

then, the cutting head is input to the interatrial septum puncture along the driven part 2;

then, the driving part 1 is moved backwards or the driven part 2 is moved forwards, so that the cutting head is driven to act to enable the cutting head to be in close contact with the interatrial space, the distance is further advanced by about 2-3 cm, and the interatrial space stoma is completed.

Alternatively, the cutting head is passed along the follower 2 at the interatrial septum puncture;

then, the driving part 1 is moved backwards or the driven part 2 is moved forwards, so as to drive the cutting head to act, so that the cutting head is in close contact with the interatrial septum, and the interatrial septum stoma device is further withdrawn, thereby completing the interatrial septum stoma.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An interatrial septum ostomy appliance, comprising a support assembly and a cutting head;

the supporting assembly comprises a driving part (1) and a driven part (2), and the driving part (1) is movably sleeved in the driven part (2);

the cutting head comprises a first cutting part (3) and a second cutting part (4), one end of the first cutting part (3) is hinged to the driving part (1), one end of the second cutting part is hinged to the driven part (2), and the other end of the first cutting part (3) is hinged to the other end of the second cutting part (4); the side surface of the first cutting piece (3) and/or the side surface of the second cutting piece (4) are/is provided with a blade part.

2. Interatrial septum ostomy device according to claim 1, wherein the driving member (1) is an inner sheath and the driven member (2) is an outer sheath, or the driving member (1) is a jackscrew and the driven member (2) is an inner sheath.

3. Interatrial septum ostomy according to claim 1, further comprising a locking assembly provided on the driven member (2) to lock the relative position of the driving member (1) and the driven member (2).

4. The interatrial septum ostomy device of claim 3, wherein the locking assembly comprises a retaining member (5) and an extrusion member (6), the retaining member (5) is sleeved on the driven member (2) and is far away from one end of the second cutting member (4), the driving member (1) penetrates out of the retaining member (5), the extrusion member (6) is arranged between the retaining member (5) and the driving member (1), and the retaining member (5) and the extrusion member (6) are matched to lock the relative position of the driving member (1) and the driven member (2).

5. The interatrial septum ostomy device according to claim 3, wherein the interatrial septum ostomy device further comprises an outer sheath (11), the outer sheath (11) is sleeved outside the driven member (2), the locking assembly comprises a locking member (5) and an extrusion member (6), the locking member (5) is sleeved on the outer sheath (11) and is far away from one end of the second cutting member (4), the driven member (2) penetrates out of the locking member (5), the extrusion member (6) is arranged between the locking member (5) and the driven member (2), the locking member (5) is matched with the extrusion member (6) to lock the relative position of the driven member (2) and the outer sheath (11).

6. Atrial septal ostomy according to claim 4 or 5, characterised in that the retaining member (5) is a retaining nut and the pressing member (6) is made of an elastic material.

7. Atrial septal ostomy device according to claim 1, wherein a scale mark is further provided on the outer circumferential surface of the active member (1).

8. Interatrial septum ostomy device according to claim 1, characterised in that it further comprises a hand-held assembly arranged at the end of the active member (1) remote from the first cutting member (3).

9. Interatrial septum ostomy device according to claim 8, wherein the hand-held assembly comprises a handle (7) and a haemostatic valve (8), the haemostatic valve (8) being connected to the handle (7) and communicating with the active member (1).

10. Interatrial septum ostomy according to claim 1, wherein the length of the driving member (1) is greater than or equal to the length of the driven member (2).