Balloon assembly

Abstract

The utility model discloses a balloon assembly, and relates to the technical field of medical instruments. The balloon assembly comprises a balloon prosthesis with a containing space and a sealing assembly, the balloon prosthesis comprises a body part and an opening part, the opening part is communicated with the body part, the sealing assembly is used for sealing the opening part, and the sealing assembly comprises a first sealing piece, a liquid guide piece and a second sealing piece. The first sealing element is arranged at the opening part, the second sealing element is connected with the liquid guide element, the first sealing element is provided with a through hole communicated with the body part, and the liquid guide element is arranged in the through hole in a penetrating mode and drives the second sealing element arranged in the body part to move. And the second sealing piece is used for sealing the via hole and / or the opening part, or the liquid guide piece is used for injecting filler into the body part. The balloon assembly has good sealing performance, and the service life of the balloon is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a balloon assembly. Background Art

[0002] In recent years, subacromial balloon spacer technique has gradually attracted attention. This method places a rotator cuff balloon between the acromion and the humeral head, aiming to directly isolate the torn rotator cuff with an implant, prevent the rotator cuff wound from hitting the acromial bone structure, redistribute the subacromial pressure, thereby relieving pain. At the same time, by reconstructing the shoulder-humeral distance and increasing the abduction lever arm of the shoulder joint, the shoulder joint mobility can be immediately improved, and the quality of daily life is also significantly improved.

[0003] In the related art, the sealing performance at the port of the balloon is poor, resulting in leakage and deformation of the liquid inside the balloon, reducing the service life of the balloon. Utility Model Content

[0004] In view of this, this application provides a balloon assembly, aiming to solve one of the technical problems in the prior art.

[0005] To achieve the above object, the technical solution adopted in this application is as follows:

[0006] In the first aspect, an embodiment of this application provides a balloon assembly, including:

[0007] A balloon prosthesis having an accommodation space, including a body part and an opening part, the opening part communicating with the body part;

[0008] A sealing assembly for sealing the opening part, the sealing assembly including a first seal, a liquid guiding member, and a second seal. The first seal is disposed at the opening part, the second seal is connected to the liquid guiding member, the first seal is provided with a liquid guiding hole communicating with the body part, the liquid guiding member passes through the liquid guiding hole and drives the second seal disposed inside the body part to move, so that the second seal seals the liquid guiding hole and / or the opening part, or the liquid guiding member injects a filling material into the body part.

[0009] In one of the embodiments of the first aspect, when the second seal seals the liquid guiding hole, the first seal is sealingly connected to the opening part, and the shape of the liquid guiding hole is the same as the shape of the second seal.

[0010] In one of the embodiments of the first aspect, the second seal includes a connecting plug, and the connecting plug is detachably connected to the liquid guiding member.

[0011] In one embodiment of the first aspect, the second seal further includes a sealing plug, the sealing plug is connected to the end of the connecting plug away from the liquid guiding member, and the connecting plug and the sealing plug are integrally formed.

[0012] In one embodiment of the first aspect, the second seal further includes a limiting convex portion, the limiting convex portion is disposed on the connecting plug or the sealing plug, and a groove is provided on the hole wall of the through hole corresponding to the position of the limiting convex portion, and the limiting convex portion is clamped with the groove.

[0013] In one embodiment of the first aspect, the connecting plug is cylindrical or spherical, and the sealing plug is frustum-shaped, spherical or hemispherical.

[0014] In one embodiment of the first aspect, the first seal includes a plunger, the plunger is received in the opening, the through hole is opened in the plunger, and the plunger is connected to the opening by interference connection, threaded connection or snap connection.

[0015] In one embodiment of the first aspect, the first seal further includes a limiting ring, the limiting ring is connected to the plunger and fixedly connected to the outside of the opening, and the limiting ring communicates with the through hole.

[0016] In one embodiment of the first aspect, a through hole is provided at the end of the liquid guiding member close to the second seal. When the liquid guiding member is connected to the second seal, the through hole is completely exposed from the second seal, and the filler in the liquid guiding member enters the body portion through the through hole.

[0017] In one embodiment of the first aspect, the materials of the balloon, the first seal and the second seal include polyamide, polyester, polyurethane, polyamide-polyether block copolymer, polyethylene, polypropylene, polyimide, cross-linked polyethylene, cross-linked polyurethane, ionomer, polycaprolactone, polylactic acid, polylactic acid-glycolic acid copolymer, lactide-caprolactone copolymer, plasticized starch material, polyion complex or copolymer or blend material of multiple materials among the above materials.

[0018] Compared with the prior art, the beneficial effects of the present application are as follows: The present application provides a balloon assembly, which includes a balloon prosthesis with an accommodation space and a sealing assembly. The balloon prosthesis includes a body portion and an opening portion, and the opening portion is in communication with the body portion. The sealing assembly is used to seal the opening portion. The sealing assembly includes a first seal, a liquid guiding member, and a second seal. The first seal is disposed at the opening portion, and the second seal is connected to the liquid guiding member. The first seal is provided with a liquid guiding hole communicating with the body portion. The liquid guiding member passes through the liquid guiding hole and drives the second seal disposed in the body portion to move, so that the second seal seals the liquid guiding hole and / or the opening portion, or the liquid guiding member injects a filling material into the body portion. In this way, when it is necessary to inject the filling material, the liquid guiding member is moved in a direction away from the opening portion, and the filling material enters the body portion. After the filling is completed, the liquid guiding member is moved in a direction close to the opening portion, so that the second seal is cooperatively connected with the first seal, and the opening portion is sealed, completely separating the filling material from the outside, preventing the filling material in the balloon prosthesis from leaking and deforming, and extending the service life of the balloon prosthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 FIG. shows the structural schematic diagram of the balloon assembly when injecting the filling material in some embodiments of the present application;

[0021] Figure 2 FIG. shows the structural schematic diagram of the balloon assembly in a fully inflated state in some embodiments of the present application;

[0022] Figure 3 FIG. shows the cross-sectional structural schematic diagram of the second seal in some embodiments of the present application;

[0023] Figure 4 FIG. shows the cross-sectional structural schematic diagram of the plunger in some embodiments of the present application.

[0024] MAIN ELEMENT SYMBOL DESCRIPTION: 100 - balloon assembly; 111 - accommodation space; 110 - balloon prosthesis; 112 - body portion; 113 - opening portion; 120 - sealing assembly; 121 - first seal; 1211 - liquid guiding hole; 1212 - plunger; 1213 - limiting ring; 122 - liquid guiding member; 1221 - through hole; 123 - second seal; 1231 - connecting plug; 1232 - sealing plug; 1233 - limiting convex portion; 1234 - jack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 a limitation to the present application.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0030] The main function of the balloon prosthesis is to be implanted in the joint cavity to play a role in limiting position and supporting. For example, when the balloon prosthesis is placed between the acromion and the humerus, it can separate the acromion from the humerus, limit the upward movement of the humeral head and assist the sliding of the humeral head, prevent the friction between the acromion and the humerus, thereby improving the pain symptoms and restoring the biomechanical function of the shoulder joint.

[0031] As Figure 1 and Figure 2 shown, an embodiment of the present application provides a balloon assembly 100, which is mainly used to place a balloon prosthesis 110 of appropriate size at the joint cavity to play a role in limiting position and supporting. The balloon assembly 100 includes a balloon prosthesis 110 having an accommodation space 111 and a sealing assembly 120.

[0032] As Figure 1 and Figure 2 shown, the balloon prosthesis 110 includes a body portion 112 and an opening portion 113, and the opening portion 113 is communicated with the body portion 112. The body portion 112 is in a cavity shape, the accommodation space 111 is arranged inside the body portion 112, and an opening is provided on the body portion 112 as an inlet for the filler.

[0033] In order to improve the sealing performance of the balloon prosthesis 110, in this embodiment, the opening portion 113 and the body portion 112 are integrally formed, and the number of the opening portions 113 is one. In this way, the situation of filler leakage can be reduced, the deformation of the balloon prosthesis 110 can be prevented, and the service life can be extended.

[0034] The sealing assembly 120 is used to seal the opening portion 113.

[0035] Specifically, the sealing assembly 120 includes a first seal 121, a liquid guiding member 122 and a second seal 123. The first seal 121 is arranged at the opening portion 113, the second seal 123 is connected to the liquid guiding member 122, the first seal 121 is provided with a liquid guiding hole 1211 communicating with the body portion 112, the liquid guiding member 122 passes through the liquid guiding hole 1211, and drives the second seal 123 arranged inside the body portion 112 to move, so that the second seal 123 seals the liquid guiding hole 1211 and / or the opening portion 113, or the liquid guiding member 122 injects the filler into the body portion 112.

[0036] In this way, when the filler needs to be injected, the liquid guiding member 122 is moved in a direction away from the opening portion 113, and the filler enters the body portion 112. After the filling is completed, the liquid guiding member 122 is moved in a direction close to the opening portion 113, and the second seal 123 enters the liquid guiding hole 1211 of the first seal 121, so that the second seal 123 is connected with the first seal 121 in a matching manner to seal the opening portion 113.

[0037] Then, separate the liquid guide member 122 from the balloon prosthesis 110, and implant the balloon prosthesis 110 into the joint cavity. Since the sealing performance at the opening of the balloon prosthesis 110 is improved, the filler is completely separated from the outside, preventing the balloon prosthesis 110 from deforming due to filler leakage and extending the service life of the balloon prosthesis 110.

[0038] In some embodiments, when the second seal 123 seals the liquid guide hole 1211, the first seal 121 and the opening 113 are sealingly connected, and the shape of the liquid guide hole 1211 is the same as the shape of the second seal 123. In this way, the structure can be simplified and the sealing performance at the opening 113 can be improved.

[0039] In some embodiments, the second seal 123 includes a connecting plug 1231, and the connecting plug 1231 is detachably connected to the liquid guide member 122.

[0040] As Figure 1 shown, the liquid guide member 122 is a tube body made of medical-grade stainless steel. Utilizing the good rigidity of the stainless steel material, when the second seal 123 is inside the main body portion 112, it can be stably connected to the end of the liquid guide member 122 to prevent the second seal 123 from falling off. Additionally, when the second seal 123 and the first seal 121 are sealingly connected, taking advantage of the characteristic that the stainless steel material is not easily deformed, it is convenient to quickly separate the liquid guide member 122 and the second seal 123.

[0041] Optionally, the connection method between the connecting plug 1231 and the liquid guide member 122 is threaded connection, interference fit, or snap connection.

[0042] In some embodiments, the second seal 123 further includes a sealing plug 1232, and the sealing plug 1232 is connected to the end of the connecting plug 1231 away from the liquid guide member 122.

[0043] As Figure 3 shown, the connecting plug 1231 is mainly used for guiding to accelerate the docking speed between the connecting plug 1231 and the liquid guide hole 1211. The sealing plug 1232 is mainly used for sealing the liquid guide hole 1211 to prevent the filler from entering the gap between the first seal 121 and the second seal 123, corroding the first seal 121 and the second seal 123, and preventing the filler from leaking, thereby extending the service life of the balloon prosthesis 110.

[0044] The connecting plug 1231 and the sealing plug 1232 are integrally formed, reducing the production cost of the second seal 123, improving the structural density of the second seal 123, and further enhancing the sealing ability of the sealing assembly 120.

[0045] In this embodiment, as Figure 2 and Figure 3 shown, the second seal 123 further includes a limiting convex portion 1233.

[0046] The limiting convex part 1233 is arranged on the connecting plug 1231 or the sealing plug 1232, and a groove is arranged on the hole wall of the guide through hole 1211 corresponding to the position of the limiting convex part 1233, and the limiting convex part 1233 is clamped with the groove.

[0047] Exemplarily, the limiting convex part 1233 is annular, and correspondingly, the groove is an annular groove. By arranging the limiting convex part 1233 and the groove to be connected in cooperation, the second seal 123 can be fixed in the first seal 121, preventing relative movement between the first seal 121 and the second seal 123 in the axial direction of the guide through hole 1211.

[0048] Exemplarily, the limiting convex part 1233 is a plurality of convex strips, the plurality of convex strips extend along the axial direction of the guide through hole 1211, and the plurality of convex strips are spaced apart along the outer peripheral edge of the second seal 123. Correspondingly, the groove is a strip-shaped groove. In this way, the freedom degrees of the second seal 123 in the axial and radial directions of the guide through hole 1211 are restricted.

[0049] In other embodiments, the groove is arranged on the second seal 123, and the limiting convex part 1233 is arranged on the hole wall of the guide through hole 1211, and the limiting convex part 1233 is clamped with the groove.

[0050] In some embodiments, as Figure 3 shown, the connecting plug 1231 is cylindrical or spherical, and the sealing plug 1232 is frustum-shaped, spherical or hemispherical.

[0051] In the direction away from the connecting plug 1231, the sealing plug 1232 gradually becomes thicker. In this way, the bonding force between the sealing plug 1232 and the hole wall of the guide through hole 1211 can be increased, improving the sealing performance.

[0052] When the second seal 123 is also used to seal the opening 113, the second seal 123 includes a connecting plug 1231, a sealing plug 1232 and a tail wing (not shown in the figure). The tail wing is plate-shaped or film-shaped, and the surface of the tail wing and the sealing plug 1232 cooperate to seal the connection between the opening 113 and the body part 112. In this way, the second seal 123 can seal the guide through hole 1211 and the opening 113 at the same time, forming a double-sealing structure.

[0053] When the tail wing is film-shaped, it can be attached to the edge of the opening 112 of the balloon prosthesis 110 or the inner wall of the body part 113 of the balloon prosthesis 110 by means of biological bonding forces, such as hydrogen bonding, electrostatic attraction, van der Waals force, hydrophobic interaction, etc., to achieve sealing.

[0054] The material of the tail wing is preferably polylactide-caprolactone copolymer, polylactic acid, plasticized starch material, polyion complex, etc.

[0055] In some embodiments, asFigure 1 , Figure 2 and Figure 4 As shown in Figure 4 , the first seal 121 includes a plunger 1212 received in the opening 113, and a guide through-hole 1211 is formed in the plunger 1212.

[0056] When the liquid guide member 122 moves in the guide through-hole 1211, there is a case where the liquid guide member 122 drives the plunger 1212 to move. By providing an interference fit, a threaded connection, or a snap connection between the plunger 1212 and the opening 113, relative movement between the plunger 1212 and the opening 113 is prevented, and the sealing performance is improved.

[0057] In some embodiments, the first seal 121 further includes a limiting ring 1213 connected to the plunger 1212 and fixedly connected to the outer side of the opening 113, and the limiting ring 1213 communicates with the guide through-hole 1211.

[0058] For example, when the plunger 1212 is threadedly connected or snap-connected to the opening 113, the limiting ring 1213 may not be provided. By utilizing the characteristics of the threaded connection, relative movement between the plunger 1212 and the opening is restricted.

[0059] For example, as Figure 2 shown, when the plunger 1212 is interference-fitted to the opening 113, the limiting ring 1213 is provided to wrap the outer wall of the opening 113, so that the limiting ring 1213 connects the outer wall of the opening and the plunger 1212 at the same time, fixing the plunger 1212 in the opening 113 and preventing relative movement between the plunger 1212 and the opening 113, thereby improving the sealing performance.

[0060] In some embodiments, a through-hole 1221 is provided at the end of the liquid guide member 122 close to the second seal 123. When the liquid guide member 122 is connected to the second seal 123, the through-hole 1221 is completely exposed from the second seal 123, and the filler in the liquid guide member 122 enters the main body portion 112 through the through-hole 1221.

[0061] Specifically, a jack 1234 is formed on the second seal 123, and the liquid guide member 122 is inserted into the jack 1234. By completely exposing the through-hole 1221 from the second seal 123, it is possible to prevent the filler from remaining in the jack 1234 of the second seal 123 and corroding the second seal 123 and the first seal 121.

[0062] In some embodiments, the materials constituting the balloon, the first seal 121 and the second seal 123 include polyamide, polyester, polyurethane, polyamide-polyether block copolymer, polyethylene, polypropylene, polyimide, cross-linked polyethylene, cross-linked polyurethane, ionomer, polycaprolactone, polylactic acid, poly(lactic-co-glycolic acid), lactide-caprolactone copolymer, plasticized starch material, polyion complex, or a copolymer or blend material of multiple materials among the above materials.

[0063] These materials relate to biocompatible or biodegradable materials, which can be optimally matched according to different application environments. For example, if the balloon prosthesis 110 needs to replace an organ in a living body, a material with biocompatibility is preferably used. If the balloon prosthesis 110 provides an auxiliary function during the recovery period after an injury in a living body, a biodegradable material is preferably used.

[0064] In some embodiments, the filling is 9% saline. In this way, during the process of inflating the balloon prosthesis 110, partial leakage of saline is allowed, reducing the operation difficulty and improving the practicality of the balloon assembly 100.

[0065] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A balloon assembly, characterized in that: include: A balloon prosthesis with an accommodating space comprises a main body and an opening, wherein the opening is connected to the main body; A sealing component is used to seal the opening, and the sealing component includes a first sealing member, a liquid guiding member and a second sealing member. The first sealing member is arranged at the opening, and the second sealing member is connected to the liquid guiding member. The first sealing member is provided with a conducting hole connected to the main body, and the liquid guiding member is passed through the conducting hole and drives the second sealing member arranged in the main body to move, so that the second sealing member seals the conducting hole and / or the opening, or the liquid guiding member injects filler into the main body.

2. The balloon assembly according to claim 1, characterized in that: When the second sealing member seals the via hole, the first sealing member is sealed and connected to the opening, and the shape of the via hole is the same as that of the second sealing member.

3. The balloon assembly according to claim 1, characterized in that: The second sealing member includes a connecting plug, and the connecting plug is detachably connected to the liquid guiding member.

4. The balloon assembly according to claim 3, characterized in that: The second sealing member further comprises a sealing plug, which is connected to the end of the connecting plug away from the liquid guiding member, and the connecting plug and the sealing plug are integrally formed.

5. The balloon assembly according to claim 4, characterized in that: The second sealing member further comprises a limiting protrusion, which is arranged on the connecting plug or the sealing plug, and a groove is arranged on the hole wall of the through hole at a position corresponding to the limiting protrusion, and the limiting protrusion is engaged with the groove.

6. The balloon assembly according to claim 4, characterized in that: The connecting plug is cylindrical or spherical, and the sealing plug is truncated cone, spherical or hemispherical.

7. The balloon assembly according to any one of claims 1 to 6, characterized in that: The first sealing member comprises a plunger, the plunger is received in the opening, the conducting hole is formed in the plunger, and the plunger is connected to the opening by interference connection, thread connection or clamping connection.

8. The balloon assembly according to claim 7, characterized in that: The first sealing member further includes a limiting ring, which is connected to the plunger and fixedly connected to the outer side of the opening, and the limiting ring is communicated with the conducting hole.

9. The balloon assembly according to any one of claims 1 to 6, characterized in that: The end of the liquid guiding member close to the second sealing member is provided with a through hole. When the liquid guiding member is connected to the second sealing member, the through hole is completely exposed to the second sealing member, and the filler in the liquid guiding member enters the main body through the through hole.

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