CN210697780U - Balloon assembly - Google Patents

Abstract

The utility model relates to a balloon component, which comprises a balloon body, wherein the balloon body is provided with a balloon body opening; the balloon interface is arranged at the opening of the balloon body and used for filler to pass through and enter the balloon body; the sealing assembly is arranged at the balloon body and/or the balloon interface and comprises a sealing body, and the sealing body comprises a sealing film for preventing the filler from flowing out of the balloon body; the outer catheter is detachably connected with the balloon interface, and the filler enters the opening of the balloon body through the outer catheter. The utility model discloses can realize the sealed of sacculus and the withdrawal of pipe simultaneously, the seal can keep balance under the inside and outside pressure of sacculus, can not leave the damage thing at sealed in-process simultaneously for whole sealed process operation is succinct, and the security is high, has prolonged the life of implanted sacculus effectively.

Description

Balloon assembly

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a sacculus subassembly.

Background

The joints are attached with a large amount of tendon tissue and cartilage tissue, which can support the joints and maintain the stability of the joints, and in addition, the tissue is also important for the movement of the joints. The joint capsule is a connective tissue which is distributed in the joint cavity, can firmly connect two adjacent bones, and simultaneously has the lubricating effect to reduce the abrasion during the joint movement. Damage to the joint will weaken and lose support to the bone and transmission of motion, for example damage to the rotator cuff will weaken and even lose the function of maintaining the fulcrum of the humeral head and glenoid, severely affecting the function of the shoulder joint. The joint saccule has the main functions of being implanted in a joint cavity to play a role in supporting and lubricating, ensuring smooth and frictionless motion between bones, and helping an organism to recover the characteristics of the joint by replacing a damaged joint capsule or providing temporary support.

The implanted sacculus is folded in the puncture sleeve, after the positioning and releasing are carried out under the direct vision of the arthroscope, the sacculus is inflated by injecting physiological saline into the catheter, the catheter is withdrawn after being separated from the sacculus, and meanwhile, the sacculus is sealed. Thus, the design of the catheter needs to ensure that the connection is broken in time after the balloon is inflated and that the balloon does not leak after the catheter is withdrawn. The existing market has few technologies capable of solving the problems, and usually, a plug is plugged into an opening of a balloon body by external force after a catheter is withdrawn, so that the implanted balloon is sealed.

Implantable balloons, due to their small initial volume, less trauma to the patient and faster recovery from surgical procedures, are beginning to be widely used for specific medical purposes. However, the common sealing method, on one hand, the withdrawal of the catheter and the sealing of the balloon cannot be performed simultaneously, and the leakage of the filling liquid is easily caused; on the other hand, when the mode that adopts the stopper to fill in is sealed, the stopper of the department of sealing is sealed firm inadequately, and the exogenic action is very easy to be become flexible down, more importantly, causes the stopper wearing and tearing easily when filling in the sacculus opening part with the stopper, if in the damage thing gets into the organism, like the blood vessel, will bring more health hidden dangers.

Therefore, there is a need for a balloon assembly that is simple in construction and safe to operate, and that allows for sealing of the balloon while the catheter is withdrawn after filling of the balloon has been completed.

SUMMERY OF THE UTILITY MODEL

Based on this, to the sealed and pipe withdrawal problem of sacculus, provide a sacculus subassembly.

A balloon component comprises a balloon body, wherein a balloon body opening is formed in the balloon body; the balloon interface is arranged at the opening of the balloon body and used for filler to pass through and enter the balloon body; a seal assembly disposed at the balloon body and/or the balloon interface, comprising a seal body comprising a sealing membrane that inhibits the filler from flowing out of the balloon body; the outer catheter is detachably connected with the balloon interface, and the filler enters the balloon body opening through the outer catheter.

Further, the sealing assembly comprises an inner catheter, the inner catheter is arranged in the outer catheter in a penetrating mode to form a gap for allowing the filler to pass through, and one end of the inner catheter is connected with the expandable inner sac; the sealing membrane covers in the inner bag surface, the inner bag passes through the inner catheter filling inflation and oppression the sealing membrane seals the sacculus.

Preferably, the cross section of the sealing membrane and the covered region of the inner sac in the axial direction of the inner catheter has a U-shaped structure.

After the balloon body is filled, gas, liquid or other substances are injected into the inner bag through the inner catheter, and the sealing film wrapped on the surface of the inner bag is gradually attached to and combined with the inner wall surface of the balloon interface along with the expansion and the enlargement of the inner bag, so that the balloon body is sealed finally.

Further, the sealing body is arranged in the balloon body and extends out of the inner wall of the balloon body, and at least part of the edge of the sealing body is not connected with the inner wall of the balloon body.

When filling the sacculus body, thereby the seal can be pushed open under the effect of external force thereby open sacculus body opening, consequently the filler can enter into among the sacculus body smoothly, and along with the continuous increase of sacculus body filler, its internal pressure increases gradually, simultaneously, after the external force of acting on the seal is withdrawn from, the seal will seal sacculus body opening under the inside pressure effect of sacculus body to realize its sealed to sacculus body open-ended. The balloon sealing operation under the scheme is simpler, the filling and sealing can be synchronously carried out, and meanwhile, the balloon body and the sealing body can be integrated into a whole, so that the structure is simple, and the manufacturing cost can be effectively reduced.

Further, the sealing body is arranged in the balloon body, and the sealing assembly comprises an auxiliary tube detachably connected with the sealing body and used for enabling the sealing body to be located at the opening of the balloon body in a preset mode. The sealing body opens or closes the balloon body opening through the push-and-pull of the auxiliary tube.

Further, the surface of the sealing body contacting the balloon body is completely or partially covered with the sealing membrane.

Further, the sealing membrane includes a cut therethrough. The seal membrane in this scheme is predetermine in the sacculus interface, and is from becoming integrative with the sacculus interface to seal the sacculus body, including the incision that runs through the seal membrane on it, can communicate with each other with the sacculus body, because the characteristic of seal membrane self material, under no exogenic action, the incision can closely bond together.

Preferably, the sealing membrane includes a cross-shaped cut-out thereon.

Preferably, the incision includes at least two lips thereon that, when in contact, seal the balloon body opening and/or the balloon interface.

Further, the outer catheter includes a needle-shaped head that is passable through the incision into the balloon body for injecting the filler into the balloon body.

The needle-shaped head of the outer catheter can extend into the balloon body through the incision to inject filler, the outer catheter is withdrawn after filling is completed, and the incision on the sealing membrane can be tightly combined together due to the characteristics of the material of the sealing membrane and the pressure of organism tissue fluid from the periphery of the balloon interface, so that the balloon body is blocked.

The sacculus subassembly of this kind of scheme because the seal membrane is pour in the sacculus interface, does not have special requirement to the inner structure of sacculus body, consequently changes manufacturing in production, and the cost is lower, can realize sealing the sacculus body when satisfying outer pipe withdrawal, therefore has wider market effect.

Further, the balloon body, the balloon interface and/or the sealing membrane may be made of polyamide, polyester, polyurethane, polyamide-polyether block copolymer, polyethylene, polypropylene, polyimide, cross-linked polyethylene, cross-linked polyurethane, ionomer, PCL (polycaprolactone), PLA (polylactic acid), PLGA (polylactic-co-glycolic acid), PLCL (lactide-co-caprolactone), plasticized starch material, polyion composite, or a copolymer or blend of any of the above materials.

For different application environments, if the implanted balloon is used for supporting and replacing organs in a living body, such as a joint capsule, the implanted balloon is preferably made of a biocompatible material. If the function of the implanted balloon is to provide temporary support in the recovery of the organism, such as the healing period after the muscle at the joint is torn, the implanted balloon is preferably made of biodegradable materials, and the implanted balloon of the type can be gradually absorbed by the organism along with the recovery of the organism.

Further, the sealing film comprises an adhesive sealing film.

Further, the connection between the outer catheter and the balloon interface includes, but is not limited to, interference connection, threaded connection or snap connection, for example, if the outer catheter outer wall has a protrusion, the balloon interface inner wall has a recess matched with the protrusion, when the outer catheter is inserted into the balloon interface, the protrusion and the recess can cooperate to snap the outer catheter onto the balloon interface. The outer catheter has the function of filling the filler into the balloon body, so that the connection between the outer catheter and the balloon interface is tight, and leakage is avoided in the filling process.

Drawings

Fig. 1 is a schematic cross-sectional view of a balloon assembly of example 1 of the present application in a first state;

FIG. 2 is a schematic cross-sectional view of a balloon assembly of example 1 of the present application in a second state;

FIG. 3 is a schematic cross-sectional view of a balloon assembly of example 1 of the present application in a third state;

FIG. 4 is a schematic cross-sectional view of a balloon assembly of example 2 of the present application in a first state;

FIG. 5 is a schematic cross-sectional view of a balloon assembly of example 2 of the present application in a second state;

FIG. 6 is a schematic cross-sectional view of a balloon assembly of example 3 of the present application in a first state;

FIG. 7 is a schematic cross-sectional view of a balloon assembly of example 4 of the present application in a first state;

FIG. 8 is a schematic cross-sectional view of a seal assembly of example 5 of the present application;

FIG. 9 is a side view of the seal assembly of example 5 of the present application;

FIG. 10 is a schematic cross-sectional view of a balloon assembly of example 5 of the present application;

fig. 11 is a schematic cross-sectional view of a seal assembly according to example 6 of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be further clearly and completely described below with reference to the accompanying drawings, but it should be noted that the following embodiments are only some preferred embodiments in the present application, and do not refer to all embodiments covered by the technical solutions of the present application.

Unless otherwise specified, the first state described herein refers to a state before balloon filling is started.

Fig. 1-3 show a schematic representation of example 1 of the present application in various operating states. As shown in fig. 1, the cross-sectional view of the balloon assembly in the first state includes a balloon body 1 and a balloon interface 2 disposed at an opening of the balloon body 1; the sealing assembly comprises an inner bag 5, a sealing membrane 3 covering the surface of the inner bag 5 and an inner catheter 6 connected with the inner bag 5, wherein the inner bag 5 is arranged in the balloon interface 2, and the outer catheter 4 is detachably connected with the balloon interface 2. The inner catheter 6 is inserted into the outer catheter 4 to form an annular gap for the filler to pass through, and the filler can enter the balloon body 1 through the annular gap and the gap between the inner balloon 5 and the balloon port 2.

As shown in fig. 2, after the balloon body 1 is filled, the inner bag 5 is inflated through the inner catheter 6 and presses the sealing film 3 on the surface of the inner bag to gradually adhere to the inner wall of the balloon interface 2, so as to seal the balloon body 1. In which the sealing membrane 3 is used in combination with the inner bag 5, it is preferable that the sealing membrane 3 and the covered region of the inner bag 5 have a U-shaped cross section in the axial direction of the inner tube 6, but this is not the entire combination of the sealing membrane 3 and the inner bag 5, and other combinations are allowed, which can achieve the above sealing.

Further, by withdrawing the other fillers in the inner catheter 6, the inner bag 5 can retract and release the sealing membrane 3 due to its elasticity, and can maintain a close fit with the inner wall of the balloon interface 2 due to the material property of the sealing membrane 3, as shown in fig. 3. Then the outer catheter 4 is detached, and the inner catheter 6 and the inner balloon 5 connected thereto are withdrawn from the living body.

Adopt the technical scheme that embodiment 1 provided, sacculus subassembly complete set uses, wherein seal assembly presets in sacculus interface 2 in advance, accomplish to seal membrane 3 application pressure after encumbrance to sacculus body 1, with seal membrane 3 pressfitting or bonding on the inner wall of sacculus interface 2, moreover, the steam generator is simple in operation, seal membrane 3 can remain stable under interior external pressure after sealing, whole sealed in-process can not produce any wearing and tearing simultaneously, can not bring other hidden dangers to the organism, consequently, better application prospect has.

Fig. 4 is a schematic cross-sectional view of a balloon assembly according to embodiment 2 of the present application in a first state, including a balloon body 7 and a balloon interface 8 connected to the balloon body 7, in which a sealing body 9 is located inside the balloon body 7 and extends from an inner wall of the balloon body 7, and at least a part of an edge of the sealing body 9 is not connected to the inner wall of the balloon body 7. The sealing body 9 covers the opening of the balloon body 7, and as shown in fig. 4, the sealing body 9 is pushed away by the outer catheter 10 so that the filler can enter the balloon body 7.

In a preferred embodiment, the material of the seal 9 may be different from the material of the balloon body 7, and the two may be bonded, welded or otherwise bonded together. The rigidity of the sealing body 9 is greater than that of the balloon body 7, so that the sealing body 9 is more easily separated from the inner surface of the balloon body 7 by the outer catheter 10, thereby allowing the filler to enter the balloon body 7.

Fig. 5 is a schematic view of the balloon assembly of embodiment 2 in a second state, that is, a sealing state diagram of the balloon assembly after the filling is completed, at this time, the sealing body 9 is pressed and attached to the inner wall of the balloon body 7 due to the gradually increased amount of the filler inside the balloon body 7, because the surface area of the sealing body 9 is larger than the area of the opening of the balloon body 7, the opening of the balloon body 7 can be completely covered, the outer catheter 10 is gradually withdrawn after the filling is completed, the sealing body 9 can be automatically attached under the action of the internal pressure of the balloon body 7, and the withdrawal of the outer catheter 10 and the sealing of the balloon body 7 can be synchronously performed.

Further, as shown in fig. 6, which is a schematic cross-sectional view of the balloon assembly of embodiment 3 of the present application in the first state, the outer catheter 10 may also have another alternative, which includes an outer catheter 10 and an inner tube 11 that are sleeved together, and one end of the outer catheter 10 is detachably connected to the balloon interface 8; the inner pipe 11 is arranged in the outer catheter 10 in a penetrating way to form an annular gap. At this time, the outer catheter 10 is connected to the balloon port 8 without requiring the outer catheter 10 to act on the sealing body 9 to open the balloon body 7, and the inner tube 11 is pushed in the axial direction toward the balloon body 7 during filling to press the sealing body 9 in the balloon body 7 to open; and after the filling is finished, the inner tube 11 and the outer catheter 10 are withdrawn together, and the sealing body 9 can seal the balloon body 7 under the internal pressure action of the balloon body 7.

Fig. 7 is a schematic cross-sectional view of a balloon assembly according to embodiment 4 of the present application in a first state, in which the sealing assembly includes a sealing body 9 embedded in a balloon body 7 and an auxiliary tube 11 detachably connected to the sealing body 9, and the sealing body 9 can be positioned and covered on the balloon interface 8 through the auxiliary tube 11. Before the filling is started, the auxiliary tube 11 is connected to the sealing body 9 in advance, and then the outer catheter 10 is connected to the balloon port 8. When the balloon body 7 is filled, the auxiliary tube 11 is pushed to push the sealing body 9 to open the cavity of the balloon body 7, the balloon body 7 is filled through the annular gap between the outer catheter 10 and the auxiliary tube 11, after the filling is finished, the sealing body 9 is attached to the opening of the balloon body 7 under the internal pressure of the balloon body 7, the outer catheter 10 and the auxiliary tube 11 are detached and withdrawn from the organism, and the sealing of the balloon body 7 can be achieved at the same time.

Further, in the balloon assemblies according to embodiments 2, 3 and 4, the surface of the sealing body 9 in contact with the balloon body 7 may be completely or partially covered with a sealing film, which at least completely covers the opening of the balloon body 7, or completely surrounds the opening of the balloon body 7.

The balloon component related to in embodiments 2, 3 and 4, the sealing body 9 is preset in the balloon body 7, and the sealing is completed by the pressure in the balloon body 7 and/or the material characteristics of the sealing body 9, and the outer catheter 10 is arranged outside the balloon for filling, so that the sealing can be realized when the outer catheter 10 is withdrawn, the structure is simple, the manufacturing cost is low, and the requirement of synchronous proceeding of sealing and withdrawing of the products can be well improved.

Fig. 8 and 9 show a cross-sectional view and a side view of a seal assembly according to example 5 of the present application. As shown in fig. 8, a sealing film 14 is located at the balloon interface 13 and can seal the balloon interface 13, and a cut 15 is formed on the sealing film 14. In one embodiment, sealing membrane 14 has a thickness, and slit 15 extends through the entire sealing membrane 14 to communicate with balloon body 12. As shown in fig. 9, the cutout 15 is a cross-shaped cutout. Due to the material properties of the sealing membrane 14, the cut 15 can be bonded together without external force, thereby sealing the balloon body 12.

Fig. 10 shows a balloon assembly according to example 5 of the present application, in which an outer catheter 16 is detachably connected to a balloon interface 13, and further, one end of the outer catheter 16 has a needle-shaped head 17 which can extend into the balloon body 12 through a cross-shaped incision 15 to fill the outer catheter, and after the filling is completed, the cross-shaped incision 15 can be attached together to seal the balloon body 12, as shown in fig. 8 and 9.

Figure 11 shows a cross-sectional view of a seal assembly of example 6 of the present application. In this embodiment, the cut 15 of the sealing membrane 14 is a straight cut and the cut 15 includes lips 151, the upper and lower lips 151 being in abutment to effect a seal against the balloon body 12.

In examples 5 and 6 of the present application, the shape of the slit 15 in the sealing membrane 14 is preferably linear, but other shapes of the slit 15 may be applied as long as the sealing membrane 14 can be ensured to seal the balloon body 12 without external force.

In the sealing assemblies provided in embodiments 5 and 6, in the manufacturing process, the sealing film 14 may be directly poured into the cavity of the balloon interface 13 and sealed, a cut 15 penetrating through the sealing film 14 needs to be formed in the sealing film 14, and the sealing film is filled with the outer catheter 16 matched with the sealing film, so that the outer catheter 16 is withdrawn after filling is completed.

The constituent materials of the balloon body, balloon interface and/or sealing membrane listed in the above embodiments include, but are not limited to, polyamide, polyester, polyurethane, polyamide-polyether block copolymer, polyethylene, polypropylene, polyimide, cross-linked polyethylene, cross-linked polyurethane, ionomer, PCL (polycaprolactone), PLA (polylactic acid), PLGA (polylactic-co-glycolic acid), PLCL (lactide-co-caprolactone), plasticized starch material, polyion composite, or a co-polymerized or blended material of a plurality of the above materials. The sealing film can be attached to the balloon interface or the inner wall of the balloon body through biological bonding force modes, such as hydrogen bonding, electrostatic attraction, van der Waals attraction, hydrophobic acting force and the like, so that sealing is realized. The material of the sealing film is preferably PLCL (lactide-caprolactone copolymer), PLA (polylactic acid), a plastic starch material, a polyion composite, or the like. The materials are biocompatible or biodegradable materials, and can be optimally matched according to different application environments, for example, the implanted balloon needs to replace organs in a living body, the material with biocompatibility is preferred, and the material with biodegradability is preferred if the implanted balloon provides an auxiliary effect in the recovery period after the living body is damaged.

It should be noted that, in order to further ensure the sealing effect, the constituent material of the sealing film also includes an adhesive sealing film, including but not limited to adding an adhesive spray coating layer on the surface thereof, so that the bonding of the sealing film is firmer.

In the balloon assembly provided by the above embodiments, the balloon body and the balloon interface may be integrally formed, or may be separately processed and then connected together, including but not limited to bonding. However, it should be noted that, after the balloon body and the balloon interface are connected, it is necessary to ensure that the balloon body is not leaked in the filling process, and meanwhile, the service performance of the balloon body in different application environments can be met. The fit connection between the outer catheter and the balloon interface should be tight and leak-free, and the outer catheter can be detached from the balloon interface after the filling is completed, so that the fit connection is detachable tight connection, including but not limited to clamping connection, threaded connection, interference fit and the like.

The balloon assembly provided by the application can be used for manufacturing shoulder sleeve balloons, and can be manufactured into other types of balloons according to different applicable positions or different applicable diseases, such as gastric balloons.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (13)

1. A balloon assembly, comprising:

the balloon body is provided with a balloon body opening;

the balloon interface is arranged at the opening of the balloon body and used for filler to pass through and enter the balloon body;

a seal assembly disposed at the balloon body and/or the balloon interface, comprising a seal body comprising a sealing membrane that inhibits the filler from flowing out of the balloon body;

the outer catheter is detachably connected with the balloon interface, and the filler enters the balloon body opening through the outer catheter.

2. The balloon assembly of claim 1 wherein the seal assembly comprises:

an inner catheter, wherein the inner catheter is arranged in the outer catheter in a penetrating way to form a gap for the filler to pass through, and one end of the inner catheter is connected with an expandable inner sac;

the sealing membrane covers in the inner bag surface, the inner bag passes through the inner catheter filling inflation and oppression the sealing membrane seals the sacculus.

3. The balloon assembly of claim 2 wherein the sealing membrane and the covered region of the inner balloon have a U-shaped configuration in cross-section in the axial direction of the inner catheter.

4. A balloon assembly according to claim 1 wherein the seal is disposed within the balloon body extending from an inner wall of the balloon body and at least a portion of an edge of the seal is free of the inner wall of the balloon body.

5. A balloon assembly according to claim 1 wherein said seal is disposed within said balloon body, said seal assembly including an auxiliary tube removably connected to said seal for positioning said seal at said balloon body opening.

6. A balloon assembly according to claim 4 or 5 wherein the surface of the seal in contact with the balloon body covers the sealing membrane in whole or in part.

7. The balloon assembly of claim 1 wherein the sealing membrane includes a cut therethrough.

8. The balloon assembly of claim 7 wherein the sealing membrane includes a cross-shaped cut therein.

9. The balloon assembly of claim 7 wherein the cutout includes at least two lips thereon that, when in contact, seal the balloon body opening and/or the balloon interface.

10. The balloon assembly of claim 7 wherein the outer catheter includes a needle-like head that is insertable through the incision into the balloon body for injecting the filler into the balloon body.

11. A balloon assembly according to any of claims 1-5, 7-10 wherein the constituent materials of the balloon body, the balloon interface and/or the sealing membrane comprise polyamide, polyester, polyurethane, polyamide polyether block copolymer, polyethylene, polypropylene, polyimide, cross-linked polyethylene, cross-linked polyurethane, ionomer, PCL, PLA, PLGA, PLCL, plasticized starch material, polyionic composite or co-or blended materials of a plurality of the above materials.

12. The balloon assembly of claim 1 wherein the sealing membrane comprises an adhesive sealing membrane.

13. The balloon assembly of claim 1, wherein the connection between the outer catheter and the balloon interface comprises an interference connection, a threaded connection, or a snap connection.

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