CN219071754U - Support inner tube for balloon catheter - Google Patents

Abstract

The utility model discloses a supporting inner tube for a balloon catheter, which comprises an adapter, an outer tube, a balloon, an inner tube and a connecting seat, wherein the adapter consists of a connecting tube and a pressurizing tube, two ends of the balloon are fixedly connected with connectors, the inner wall of each connector is fixedly connected with a fixed block, the left side of each connector is fixedly connected with the outer tube, the right side ends of the connecting tube and the pressurizing tube are fixedly penetrated through the connecting seat, the right side end of each connecting seat is detachably connected with the left side end of the outer tube, the inner tube sequentially penetrates through the connecting tube, the outer tube and the balloon, the abutting surfaces between the left and right groups of fixed blocks are fixedly connected with supporting tubes, the supporting tubes are connected through elastic tubes, and the supporting tubes and the elastic tubes are sleeved on the outer side of the inner tube. In the process of expanding the middle part of the balloon, the two sides of the balloon can be stretched, so that the balloon can be fully expanded along with continuous inflation, the use requirement is met, and the balloon is worthy of popularization in the existing medical operation.

Description

Support inner tube for balloon catheter

Technical Field

The utility model relates to the field of medical surgical instruments, in particular to a supporting inner tube for a balloon catheter.

Background

The intra-aortic balloon counterpulsation is one of mechanical auxiliary circulation methods, improves the intra-aortic diastolic pressure, increases coronary blood supply and improves myocardial function through physical action, and has been widely applied to rescue and treatment of critical patients with cardiac insufficiency and the like. The intra-aortic balloon counterpulsation consists of a cylindrical balloon fixed to a catheter, which is placed at the thoracic aortic site. The proximal end of the catheter is located distal to the left subclavian artery and the distal end is located in the renal artery. The balloon is inflated when the heart is diastole and deflated when the heart is systole. Thereby producing a dual hemodynamic effect: the diastolic balloon is inflated to advance blood flow, increasing diastolic pressure and coronary perfusion. The balloon is deflated prior to systole to reduce systolic pressure (cardiac afterload) and thereby improve left ventricular ejection. The control console can be used for inflating and deflating the air bag once in each cardiac cycle (1:1 mode) and once in every two cardiac cycles (1:2 mode) and once in every three cardiac cycles (1:3 mode). The console can adjust the size of the balloon according to the amount of gas entering the balloon.

At present, when the cylindrical balloon in the existing intra-aortic balloon counterpulsation is expanded under pressure, the expansion is realized only by the bulge of the middle part, the expansion direction mainly goes up and down, and the expansion of the positions of the two ends is not complete enough, so that the practicability is questionable.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a supporting inner tube for a balloon catheter, which can be stretched on two sides in the process of expanding the middle part of the balloon, so that the balloon catheter can be completely expanded along with continuous inflation, and the use requirement is met.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a sacculus pipe is with supporting inner tube, includes adapter, outer tube, sacculus, inner tube, connecting seat, and the adapter comprises connecting pipe, pressurization pipe, sacculus both ends fixedly connected with connector, connector inner wall fixedly connected with fixed block, left side connector fixedly connected with outer tube, connecting pipe, pressurization pipe right side end are all fixed the run through the connecting seat, the connecting seat right side end can be dismantled and be connected in the left side end of outer tube, the equal fixedly connected with stay tube of butt joint face between two sets of fixed blocks about, and pass through elastic tube connection between the stay tube.

Preferably, the adapter further comprises a handle post fixedly connected to the left end of the connecting pipe, the inner pipe penetrates through the handle post, and the inner pipe is fixedly connected with the handle post.

Preferably, the inner tube movably penetrates through the connecting tube, the outer tube and the balloon in sequence, and the inner tube also movably penetrates through the fixing block in the connector and then extends to the right side of the balloon.

Preferably, the connecting pipe is connected with the pressurizing pipe through a rubber piece.

Preferably, the connecting seat comprises a threaded head which is in threaded connection with the left side end of the outer tube, and a sealing gasket is arranged on the contact surface of the connecting seat and the outer tube.

Preferably, the left side the fixed block built-in of connector transversely runs through and is provided with multiunit gas pocket.

Preferably, the supporting tube and the elastic tube are both sleeved on the outer side of the inner tube, the guide wire is movably inserted into the inner cavity of the inner tube and extends to the right side end, and the left side end of the guide wire is fixedly connected with a wire threading handle for operating the guide wire.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is improved and processed based on the traditional equipment for the balloon counterpulsation operation in the aorta, two groups of support tubes are sleeved outside an inner tube in the implanted balloon, the two groups of support tubes are movably supported by the elastic tube connection, the balloon is transversely stretched by the elastic tube between the support tubes at the outer side end and the support tube cooperation of the end while the balloon is stretched at the outer side end in the subsequent pressurizing tube pressurizing and inflating process, the balloon can be further stretched left and right, the balloon can be completely stretched along with continuous inflation of the pressurizing tube, the whole structure is simple and reasonable, the practical effect is obvious, and the utility model is worth popularizing in the prior medical operation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of a three-dimensional view structure according to the present utility model

FIG. 2 is a schematic view of a planar view structure according to the present utility model;

FIG. 3 is a schematic view of the adapter of FIG. 2 according to the present utility model;

FIG. 4 is a schematic cross-sectional view of the balloon structure of FIG. 2 according to the present utility model;

fig. 5 is a schematic side view of the left side fixing block structure in fig. 4 according to the present utility model.

Reference numerals, wherein: 1-adapter, 101-handle post, 102-rubber spare, 2-outer tube, 3-sacculus, 4-inner tube, 5-stay tube, 6-connecting seat, 601-screw thread head, 602-sealing pad, 7-connecting pipe, 8-pressurization pipe, 9-threading handle, 10-connector, 11-fixed block, 12-elastic tube, 13-gas pocket, 14-seal wire.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, a supporting inner tube for a balloon catheter comprises an adapter 1, an outer tube 2, a balloon 3, an inner tube 4, a connecting seat 6 and a guide wire 14, wherein the adapter 1 is composed of a connecting tube 7 and a pressurizing tube 8, two ends of the balloon 3 are fixedly connected with a connector 10, the inner wall of the connector 10 is fixedly connected with a fixing block 11, the left side connector 10 is fixedly connected with the outer tube 2, the connecting tube 7 and the right side end of the pressurizing tube 8 are fixedly connected with the connecting seat 6, the right side end of the connecting seat 6 is detachably connected with the left side end of the outer tube 2, the inner tube 4 sequentially penetrates the connecting tube 7, the outer tube 2 and the balloon 3, the inner tube 4 also movably penetrates the fixing blocks 11 in the connector 10 and then extends to the right side of the balloon 3, the butt joint surfaces between the left and right groups of the fixing blocks 11 are fixedly connected with a supporting tube 5, the supporting tube 5 and the elastic tube 12 are sleeved on the outer side of the inner tube 4, the inner cavity of the inner tube 4 movably penetrates the guide wire 14, and the left side end of the guide wire 14 is fixedly connected with a threading handle 9 for operating the guide wire 14.

In this embodiment, after the outer tube 2, the balloon 3 and the inner tube 4 are implanted into the arterial tube, the pressurizing tube 8 in the adapter 1 is connected with a gas pressurizing device, gas is injected through the pressurizing tube 8 to pressurize and finally poured into the balloon 3 through the outer tube 2 via the air holes 13 in the left fixing block 11, and the fixing block 11 in the right connector 10 of the balloon 3 is not provided with the air holes 13 so as to avoid the leakage of the gas. The balloon 3 is inflated after being filled with gas, and at the moment, two groups of support tubes 5 are movably sleeved on the outer side of the inner tube 4 and connected with two ends of the balloon 3, and at the moment, the right end of the balloon 3 is not fixed, so that the balloon can be stressed to expand outwards, and the stretchable elastic tube 12 between the two groups of support tubes 5 is stressed to stretch, so that the balloon 3 can stretch towards two sides when being inflated, and can reach a complete expanding state along with continuous introduction of gas.

In addition, the guide wire 14 is penetrated from the inner tube 4 through the threading handle 9, and the threading handle 9 can facilitate the rotation operation of the guide wire 14.

In this embodiment, the adapter 1 further includes a handle post 101 fixedly connected to the left end of the connection tube 7, the inner tube 4 penetrates the handle post 101, and the inner tube 4 is fixedly connected to the handle post 101, and the connection tube 7 is connected to the pressurizing tube 8 through a rubber member 102; the connecting tube 7 and the pressurizing tube 8 are separated from each other by the triangular rubber 102 outside the handle post 101 to avoid mutual pressing by holding the handle post 101 outside the connecting tube 7.

In this embodiment, the connection seat 6 includes a threaded head 601 screwed to the left end of the outer tube 2, and a sealing gasket 602 is disposed on the contact surface between the connection seat 6 and the outer tube 2; the screw thread head 601 can realize dismantling fixed connection to the adapter 1, and convenient replacement and disinfection, and the sealing gasket 602 can increase the connection tightness of the outer tube 2, avoids the condition that gas leakage occurs when pressurizing and inflating.

In this embodiment, the fixing block 11 arranged in the left connector 10 is transversely provided with a plurality of groups of air holes 13, which is convenient for air to flow during inflation, and the fixing block 11 arranged on the right is in a sealed state, so as to avoid air leakage.

The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

Claims (7)

1. The utility model provides a balloon catheter is with supporting inner tube, balloon catheter includes adapter (1), outer tube (2), sacculus (3), inner tube (4), connecting seat (6), and adapter (1) comprises connecting pipe (7), pressurization pipe (8), a serial communication port, sacculus (3) both ends fixedly connected with connector (10), connector (10) inner wall fixedly connected with fixed block (11), the left side connector (10) fixedly connected with outer tube (2), connecting pipe (7), pressurization pipe (8) right side end all are fixed run through connecting seat (6), connecting seat (6) right side end can be dismantled and be connected in the left side end of outer tube (2), and the equal fixedly connected with stay tube (5) of butt joint face between two sets of fixed blocks (11) about, and connect through elastic tube (12) between stay tube (5).

2. A support inner tube for a balloon catheter according to claim 1, wherein the adapter (1) further comprises a handle post (101) fixedly connected to the left end of the connecting tube (7), the inner tube (4) penetrates the handle post (101), and the inner tube (4) is fixedly connected to the handle post (101).

3. The supporting inner tube for the balloon catheter according to claim 2, wherein the inner tube (4) sequentially penetrates through the connecting tube (7), the outer tube (2) and the balloon (3) in a movable mode, and the inner tube (4) further penetrates through the fixing block (11) in the connecting head (10) in a movable mode and then extends to the right side of the balloon (3).

4. A support inner tube for balloon catheters according to claim 3, characterised in that the connecting tube (7) and the pressure tube (8) are connected by means of a rubber piece (102).

5. The inner support tube for the balloon catheter according to claim 4, wherein the connecting seat (6) comprises a threaded head (601) which is in threaded connection with the left side end of the outer tube (2), and a sealing gasket (602) is arranged on the contact surface of the connecting seat (6) and the outer tube (2).

6. The supporting inner tube for the balloon catheter according to claim 5, wherein a plurality of groups of air holes (13) are transversely penetrated through a fixing block (11) arranged in the connector (10) at the left side.

7. The supporting inner tube for the balloon catheter according to claim 6, wherein the supporting tube (5) and the elastic tube (12) are sleeved on the outer side of the inner tube (4), a guide wire (14) is movably inserted into the inner cavity of the inner tube (4) and extends to the right side end of the inner tube, and a threading handle (9) for operating the guide wire is fixedly connected to the left side end of the guide wire (14).

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